134p. · CENTER (ERIC) This document has been reproduced as ceived from the person or organization...
Transcript of 134p. · CENTER (ERIC) This document has been reproduced as ceived from the person or organization...
ED 411 465
TITLE
INSTITUTION
SPONS AGENCY
PUB DATENOTEAVAILABLE FROM
PUB TYPEEDRS PRICEDESCRIPTORS
ABSTRACT
DOCUMENT RESUME
CE 074 815
Heating, Air-Conditioning, and Refrigeration Technician.National Skill Standards.Vocational Technical Education Consortium of States,Decatur, GA.Office of Vocational and Adult Education (ED), Washington,DC1996-10-00134p.
V-TECS, Southern Association of Colleges and Schools, 1866Southern Lane, Decatur, GA 30033-4097; phone: 800- 248-7701,ext. 543.Guides Non-Classroom (055)MF01/PC06 Plus Postage.*Air Conditioning; Air Conditioning Equipment; BehavioralObjectives; *Employment Potential; *Heating; *Job Skills;*National Standards; *Occupational Information; OccupationalSafety and Health; Paraprofessional Personnel; PostsecondaryEducation; Refrigeration; Secondary Education; Ventilation;Vocational Education
This guide contains information on the knowledge and skillsidentified by industry as essential to the job performance of heating,air-conditioning, and refrigeration technicians. It is intended to assisttraining providers in public and private institutions, as well as inindustry, to develop and implement training that will provide workers withthe competencies needed to gain employment as technicians and to advancewithin the field. The publication contains six sections. The first sectiondefines skill standards, provides suggestions for using them, and explainshow they were developed. The second section lists the core knowledgestandards in communication, mathematics, and science. The third section liststhe core occupational skills standards in these areas: safety andenvironment, electrical principles, electric motors, controls, refrigeration,heating, air conditioning, and piping. Occupation-specific skill standardsfor residential and light commercial heating, air conditioning, and heatpumps, and commercial conditioned-air systems and refrigeration are listed inthe fourth section. In the fifth section, standards for workplace behaviors,including ethics, environment, communication, professionalism, and problemsolving, are provided. The final section contains skill standards matrixesfor core skills and occupational skills. An appendix contains a skills matrixthat relates all the skill standards to various residential and commercialapplications. (KC)
********************************************************************************
Reproductions supplied by EDRS are the best that can be madefrom the original document.
********************************************************************************
HE
AT
ING
, AIR
-CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
N
MIN
K11
1111
111
U.S
. DE
PA
RT
ME
NT
OF
ED
UC
AT
ION
Offi
ce o
f Edu
catio
nal R
esea
rch
and
Impr
ovem
ent
ED
ED
DA
TIO
NA
L R
ES
OU
RC
ES
INF
OR
MA
TIO
NC
EN
TE
R (
ER
IC)
Thi
s do
cum
ent h
as b
een
repr
oduc
ed a
sce
ived
from
the
pers
on o
r or
gani
zatio
nor
igin
atin
g it.
Min
or c
hang
es h
ave
been
mad
e to
impr
ove
repr
oduc
tion
qual
ity.
Poi
nts
of v
iew
or
opin
ions
sta
ted
in th
isdo
cum
ent d
o no
t nec
essa
rily
repr
esen
tof
ficia
l OE
RI p
ositi
on o
r po
licy.
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
.
KN
OW
LED
GE
, SK
ILLS
", A
ND
ST
AN
DA
RD
S-
2B
EST
CO
PY A
VA
ILA
BL
E3
Thi
s pu
blic
atio
n in
clud
es th
e m
ater
ial c
onta
ined
in th
e pr
evio
usly
rel
ease
d N
atio
nal S
kill
Stan
dard
s fo
r H
eatin
g,A
ir-C
ondi
tioni
ng, a
nd R
efri
gera
tion
Tec
hnic
ians
, Vol
ume
One
: Ski
lls a
nd K
now
ledg
e.
Thi
s pr
ojec
t is
supp
orte
d in
par
t by
a gr
ant f
rom
the
Bus
ines
s an
d E
duca
tion
Stan
dard
s Pr
ogra
m o
f th
e C
arl D
.Pe
rkin
s V
ocat
iona
l and
App
lied
Tec
hnol
ogy
Edu
catio
n A
ct, O
ffic
e of
Voc
atio
nal a
nd A
dult
Edu
catio
n, U
nite
d St
ates
Dep
artm
ent o
f E
duca
tion.
45
Hea
ting,
Air-
Con
ditio
ning
, and
Ref
riger
atio
n T
ech,
icia
Nat
iona
l Ski
ll S
tnd
avds
Dev
elop
ed in
Con
cert
With
Hea
ting,
Air-
Con
ditio
ning
, and
Ref
riger
atio
n P
olic
y A
dvis
ory
Com
mitt
ee
and
V-T
EC
SS
outh
ern
Ass
ocia
tion
of C
olle
ges
and
Sch
ools
1866
Sou
ther
n La
neD
ecat
ur, G
eorg
ia30033-4097
Oct
ober
,1996
6
Tab
le o
f C
onte
its
Pre
face
Ele
ctri
cal P
rinc
iple
s5
Why
Ski
ll St
anda
rds
are
Cri
tical
Ele
ctri
c M
otor
s6
How
Ski
ll St
anda
rds
Em
erge
dC
ontr
ols
6
Purp
ose
and
Inte
nded
Use
s of
this
Pub
licat
ion
Ref
rige
ratio
n Pr
inci
ples
and
Pra
ctic
es7
Hea
ting
Prin
cipl
es a
nd P
ract
ices
7
Ack
now
ledg
men
tsPo
licy
Adv
isor
y C
omm
ittee
Tec
hnic
al A
dvis
ors
vii
viii
Air
Con
ditio
ning
Pri
ncip
les
and
Prac
tices
Pipi
ng P
rinc
iple
s an
d Pr
actic
es
Occ
upat
ion-
Spe
cific
Ski
lls
8 8
Pro
ject
Sta
ff an
d C
onsu
ltant
sxi
Res
iden
tial a
nd L
ight
Com
mer
cial
Hea
ting
Res
iden
tial a
nd L
ight
Com
mer
cial
Air
Con
ditio
ning
9 10R
esid
entia
l and
Lig
ht C
omm
erci
al H
eat P
umps
10
Intr
oduc
tion
Com
mer
cial
Con
ditio
ned-
Air
Sys
tem
s11
Wha
t Are
Ski
ll St
anda
rds
1C
omm
erci
al R
efri
gera
tion
12
Usi
ng S
kill
Stan
dard
s1
Indi
vidu
als
1W
orkp
lace
Beh
avio
rsT
rain
ing
Prov
ider
s1
Eth
ics
13
Indu
stry
and
Man
agem
ent
2E
nvir
onm
ent
13D
evel
opm
enta
l Pro
cess
2C
omm
unic
atio
n13
Stan
dard
s2
Prof
essi
onal
ism
14
Prob
lem
Sol
ving
14
Cor
e K
now
ledg
eC
omm
unic
atio
n3
Ski
ll S
tand
ards
Mat
rixM
athe
mat
ics
3C
ore
Skill
s15
Scie
nce
4O
ccup
atio
nal-
Spec
ific
Ski
lls25
Cor
e S
kills
App
endi
xSa
fety
and
Env
iron
men
t5
Skill
s M
atri
xA
-1
1 0
IIII
Why
Ski
ll S
tand
ards
Are
Crit
ical
Am
eric
a's
econ
omic
wel
l-be
ing
depe
nds
on it
s co
llect
ive
abili
ty to
mee
t glo
bally
-com
petit
ive
stan
dard
s fo
r m
anuf
actu
ring
and
per
form
ance
.Sk
ill S
tand
ards
for
Hea
ting,
Air
Con
ditio
ning
, and
Ref
rige
ratio
n T
echn
icia
nsre
pres
ents
one
of
16 p
roje
cts
fund
ed b
y th
e U
. S. D
epar
tmen
t of
Edu
catio
nto
iden
tify
the
tech
nica
l ski
lls, k
now
ledg
e, a
nd w
orkp
lace
beh
avio
rsne
eded
by
tech
nici
ans
if th
e he
atin
g, a
ir c
ondi
tioni
ng, a
nd r
efri
gera
tion
indu
stry
in th
e U
nite
d St
ates
is to
rem
ain
com
petit
ive.
Man
ufac
ture
rs h
ave
impr
oved
the
effi
cien
cy o
f th
eir
heat
ing,
air
cond
ition
ing,
and
ref
rige
ratio
n eq
uipm
ent.
In a
dditi
on to
env
iron
men
tal
regu
latio
ns, t
hese
tech
nica
l adv
ance
s re
quir
e te
chni
cian
s to
acq
uire
am
ore
soph
istic
ated
set
of
skill
s to
inst
all,
mai
ntai
n, a
nd s
ervi
ce th
is m
ore
ener
gy-e
ffic
ient
and
env
iron
men
tally
-fri
endl
y eq
uipm
ent.
How
Ski
ll S
tand
ards
Em
erge
d
Thi
s pu
blic
atio
n w
as d
evel
oped
thro
ugh
the
colla
bora
tive
effo
rts
ofst
akeh
olde
rs in
the
heat
ing,
air
con
ditio
ning
, and
ref
rige
ratio
n in
dust
ryw
orki
ng w
ith V
-TE
CS
staf
f. A
Pol
icy
Adv
isor
y C
omm
ittee
com
pris
ed o
fre
pres
enta
tives
fro
m m
anuf
actu
ring
, tra
de a
ssoc
iatio
ns, l
abor
org
aniz
a-tio
ns, a
nd e
duca
tion
prov
ided
cou
nsel
and
ass
ista
nce
to th
e pr
ojec
t sta
ffch
arge
d w
ith id
entif
ying
ski
ll st
anda
rds.
In a
dditi
on to
thei
r ow
n ex
pert
ise,
the
Polic
y A
dvis
ory
Com
mitt
eeid
entif
ied
othe
r te
chni
cal e
xper
ts r
ecog
nize
d by
pee
rs f
or th
eir
know
ledg
e,ex
peri
ence
, and
ana
lytic
al a
bilit
ies.
The
se te
chni
cian
s, c
ontr
acto
rs,
Pre
face
trai
ners
, and
edu
cato
rs w
orke
d w
ith th
e pr
ojec
t sta
ff to
ens
ure
the
accu
rate
and
com
plet
e id
entif
icat
ion
of s
kill
stan
dard
s. T
hey
prov
ided
the
know
ledg
e an
d ex
pert
ise
requ
ired
to f
erre
t out
wha
t pro
duct
ive
tech
nici
ans
know
and
do.
In li
ne w
ith th
e re
com
men
datio
n of
the
Polic
y A
dvis
ory
Com
mitt
ee,
the
stud
y cl
assi
fied
the
indu
stry
acc
ordi
ng to
the
time
hono
red
cate
gori
esof
res
iden
tial,
light
com
mer
cial
, com
mer
cial
air
-con
ditio
ning
, and
com
mer
cial
ref
rige
ratio
n. C
ateg
orie
s re
flec
t the
rel
ativ
e si
ze o
f th
eeq
uipm
ent a
nd th
e fu
nctio
n pe
rfor
med
. The
type
of
task
s pe
rfor
med
by
tech
nici
ans
was
cla
ssif
ied
into
fou
r fu
nctio
nal a
reas
inst
alla
tion,
mai
nte-
nanc
e, r
epai
r, a
nd o
pera
tions
.
Pur
pose
and
Inte
nded
Use
s of
Thi
s P
ublic
atio
n
The
pur
pose
of
this
pub
licat
ion
is to
con
vey
the
know
ledg
e an
dsk
ills
iden
tifie
d by
indu
stry
as
esse
ntia
l to
the
job
perf
orm
ance
of
heat
ing,
air-
cond
ition
ing,
and
ref
rige
ratio
n te
chni
cian
s. T
he d
ocum
ent i
s in
tend
edto
ass
ist t
rain
ing
prov
ider
s in
pub
lic a
nd p
riva
te in
stitu
tions
, as
wel
l as
inin
dust
ry to
dev
elop
and
impl
emen
t cur
ricu
lum
and
trai
ning
con
tent
that
will
pro
vide
wor
kers
with
the
com
pete
ncie
s ne
eded
to g
ain
empl
oym
ent
as te
chni
cian
s an
d to
adv
ance
with
in th
e fi
eld.
WM
=
We
than
k th
e in
divi
dual
s w
ho s
erve
d on
the
Polic
y A
dvis
ory
Com
mitt
ee a
nd a
s te
chni
cal a
dvis
ors.
The
y w
ere
alw
ays
read
y to
edu
cate
and
offe
r sp
lend
id a
dvic
e. W
ithou
t the
ir e
ffor
ts, d
edic
atio
n, a
nd e
xper
tise,
this
doc
umen
t wou
ld n
ot b
e av
aila
ble
to it
s us
ers.
V-T
EC
S Pr
ojec
t Sta
ff
Pol
icy
Adv
isor
y C
omm
ittee
Step
hen
Den
byV
ocat
iona
l Ind
ustr
ial C
lubs
of
Am
eric
a
Ack
now
ledg
men
ts
Sara
h L
arki
nN
atio
nal A
ssoc
iatio
n of
Pow
er E
ngin
eers
War
ren
Lup
son
Air
Con
ditio
ning
Con
trac
tors
of
Am
eric
a
Car
l E M
aulb
eck
Lin
coln
Tec
hnic
al I
nstit
ute
H. A
llyn
Parm
ente
rU
nite
d A
ssoc
iatio
n of
Jou
rney
man
and
App
rent
ices
of
the
Plum
bing
and
Pipe
Fitt
ing
Indu
stry
of
the
Uni
ted
Stat
es a
nd C
anad
a
Dav
id P
. Ros
sG
ene
Gof
fN
orth
Am
eric
an E
lect
ric
Hea
t Pum
p A
llian
ce
Inte
r-C
ity P
rodu
cts
Mad
elei
ne H
emm
ings
Nat
iona
l Ass
ocia
tion
of S
tate
Dir
ecto
rs o
f V
ocat
iona
lan
d T
echn
ical
Edu
catio
n
Les
lie S
andl
erA
ir C
ondi
tioni
ng &
Ref
rige
ratio
n In
stitu
te
Dav
e Se
wel
lL
enno
x In
dust
ries
Mic
hael
Hon
eycu
ttA
ir C
ondi
tioni
ng C
ontr
acto
rs o
f A
mer
ica
Pam
Ska
rda
Car
eer
Col
lege
Ass
ocia
tion
Dan
Hor
nsby
Ref
rige
ratio
n Se
rvic
e E
ngin
eers
Soc
iety
Geo
rge
A. S
tory
Cop
elan
d C
orpo
ratio
nA
llen
R. I
n lo
wN
atio
nal A
ssoc
iatio
n of
Plu
mbi
ng, H
eatin
g, a
nd C
oolin
g C
ontr
acto
rsT
omas
C. T
ighe
Inte
rnat
iona
l Uni
on o
f O
pera
ting
Eng
inee
rsH
enry
Joh
nson
Mec
hani
cal S
ervi
ce C
ontr
acto
rs o
f A
mer
ica
John
Wea
ver
Nat
iona
l Ass
ocia
tion
of P
lum
bing
, Hea
ting,
and
Coo
ling
Con
trac
tors
14vi
i
15
Lis
a W
olf
Air
Con
ditio
ning
Con
trac
tors
of
Am
eric
a
Tec
hnic
al A
dvis
ors
Bry
an S
. Ack
erH
ull,
Geo
rgia
Ric
ky B
row
nA
then
s, G
eorg
ia
Dan
ny H
. Cha
mbl
eeD
alla
s, G
eorg
ia
Dar
in C
lark
Mar
ion,
Illi
nois
Jam
es E
. Dun
ning
Bel
levi
lle, I
llino
is
Gen
e Fa
rris
Mar
ion,
Illi
nois
Car
ol F
owle
rM
ario
n, I
llino
is
Rob
ert F
ullm
erSp
ring
fiel
d, V
irgi
nia
Patr
ick
Gar
aval
iaH
erri
n, I
llino
is
Wal
lace
Gei
lsG
lend
ale
Hei
ghts
, Illi
nois
Bar
ry G
iers
hG
lend
ale
Hei
ghts
, Illi
nois
John
Har
eSp
okan
e, W
ashi
ngto
n
Cha
rles
Hay
nes
Free
burg
, Illi
nois
Mic
hael
T. H
urle
yPh
oeni
x, A
rizo
na
Ric
hard
Jaz
win
Phoe
nix,
Ari
zona
John
Jen
kins
Her
ndon
, Vir
gini
a
Kei
th J
ohns
onG
lend
ale
Hei
ghts
, Illi
nois
Mic
hael
A. K
ilgor
eW
ashi
ngto
n, D
istr
ict o
f C
olum
bia
Hen
ry L
arki
nM
illsb
oro,
Del
awar
e
Eug
ene
Lea
fty
Phoe
nix,
Ari
zona
Tod
d L
inds
ayM
ario
n, I
llino
is
Step
hen
Lis
sG
lend
ale
Hei
ghts
, Illi
nois
Cha
rles
R. L
ogan
Gle
ndal
e, A
rizo
na
Tho
mas
Loo
mis
Mar
ietta
, Geo
rgia
Rus
s L
unde
Spok
ane,
Was
hing
ton
Tom
Mas
onM
esa,
Ari
zona
John
H. M
cNei
lM
ario
n, I
llino
is
Lav
elle
Per
rin
Spok
ane,
Was
hing
ton
Mik
e R
ador
Bel
levi
lle, I
llino
is
John
Ray
Spok
ane,
Was
hing
ton
Wes
Sch
mid
tSp
okan
e, W
ashi
ngto
n
Tim
Silv
aSp
okan
e, W
ashi
ngto
n
Dan
iel S
loan
Car
terv
ille,
Illi
nois
Hel
mut
Soh
nA
nnad
ale,
Vir
gini
a
Ric
hard
Sm
ithC
arte
rvill
e, I
llino
is
Jerr
y St
raub
Wat
erlo
o, I
llino
is
Art
hur
Tro
stM
ontg
omer
y V
illag
e, M
aryl
and
18ix
Cin
dy T
rost
Mon
tgom
ery
Vill
age,
Mar
ylan
d
Mar
k V
augh
ters
Rut
ledg
e, G
eorg
ia
Dw
ight
Wei
daue
rPh
oeni
x, A
rizo
na
19
Pro
ject
Sta
ff
Ron
ald
D. M
c C
age
Adm
inis
trat
ive
Proj
ect D
irec
tor
Exe
cutiv
e D
irec
tor,
V-T
EC
S
Vic
tor
L. H
arvi
llePr
ojec
t Dir
ecto
r
Bre
nda
C. H
atta
way
Ass
essm
ent C
oord
inat
orA
ssis
tant
Dir
ecto
r, V
-TE
CS
Sand
i Dav
ison
Adm
inis
trat
ive
Ass
ista
nt, V
-TE
CS
Rob
yn D
. Mar
shal
lC
ompu
ter
App
licat
ions
Spe
cial
ist,
V-T
EC
S
Kar
en A
llen
Proj
ect A
ssis
tant
20xi
r°e
t St f
t44
,
Con
sulta
nts
Gen
e Sm
ithJe
ffer
son,
Geo
rgia
Noe
l Rop
erM
arie
tta, G
eorg
ia
Cha
rles
Los
hPh
oeni
x, A
rizo
na
gills
Chr
ysan
dra
Spic
elan
dC
hest
nut M
ount
ain,
Geo
rgia
Perr
y St
eine
rA
tlant
a, G
eorg
ia
Bar
bara
Bla
sch
Alp
hare
tta, G
eorg
ia
Tri
na B
otel
erL
awer
ence
ville
, Geo
rgia
Joyc
e A
nder
son
Orl
ando
, Flo
rida
Lar
ry P
ritc
hett
Car
nesv
ille,
Geo
rgia
Fred
Car
vell
Cor
onad
o, C
alif
orni
a
Org
aniz
atio
n of
Ski
lls fo
r H
eatin
g, A
ir C
ondi
tioni
ng, a
nd R
efrig
erat
ion
Tec
hnic
ians
Cor
e K
now
ledg
e
J
Occ
upat
iona
l Ski
lls
Com
mun
icat
ion
Mat
hem
atic
s
Wor
kpla
ce B
ehav
iors
22
Env
ironm
ent
Com
mun
icat
ions
JP
rofe
ssio
nalis
m
Pro
blem
Sol
ving
Saf
ety
and
Env
ironm
ent
Ele
ctric
al P
rinci
ples
Ele
ctric
Mot
ors
Con
trol
sR
efrig
erat
ion
Prin
cipl
es a
nd P
ract
ices
Hea
ting
Prin
cipl
es a
nd P
ract
ices
Air
Con
ditio
ning
Prin
cipl
es a
nd P
ract
ices
Pip
ing
Prin
cipl
es a
nd P
ract
ices
Res
iden
tial a
nd L
ight
Com
mer
cial
Hea
ting
Res
iden
tial a
nd L
ight
Com
mer
cial
Air
Con
ditio
ning
Res
iden
tial a
nd L
ight
Com
mer
cial
Hea
t Pum
psC
omm
erci
al C
ondi
tione
d-A
ir S
yste
ms
Com
mer
cial
Ref
riger
atio
n
xii
BE
ST C
OPY
AV
AIL
AB
LE
CD
,
4
Wha
t Are
Ski
ll S
tand
ards
?
Wha
t mus
t tec
hnic
ians
kno
w a
nd d
o to
be
prod
uctiv
e? W
hat
know
ledg
e do
they
pos
sess
? W
hat t
echn
ical
ski
lls a
re r
equi
red
and
whe
rean
d w
hen
are
they
util
ized
? T
hese
are
the
ques
tions
that
for
m th
e ba
sis
ofth
is s
tudy
.Fo
r th
is in
quir
y, s
kill
stan
dard
s ar
e de
fine
d as
the
body
of
know
l-ed
ge, t
he te
chni
cal s
kills
, and
the
wor
kpla
ce b
ehav
iors
req
uire
d of
prod
uctiv
e, s
ucce
ssfu
l tec
hnic
ians
.T
he s
kill
stan
dard
s w
ere
divi
ded
into
thre
e se
para
te b
ut in
terd
epen
-de
nt a
reas
: Cor
e K
now
ledg
e, O
ccup
atio
nal S
kills
, and
Wor
kpla
ce B
ehav
-io
rs. O
ccup
atio
nal S
kills
wer
e fu
rthe
r su
bdiv
ided
into
Cor
e Sk
ills
and
Occ
upat
ion-
Spec
ific
Ski
lls.
Usi
ng S
kill
Sta
ndar
ds
Stud
ents
, tec
hnic
ians
, edu
cato
rs, t
rain
ers,
indu
stry
and
man
agem
ent
are
the
prim
ary
stak
ehol
ders
in th
e he
atin
g, a
ir c
ondi
tioni
ng, a
nd r
efri
g-er
atio
n in
dust
ry. H
ow th
ey u
se s
kill
stan
dard
s, h
owev
er, w
ill v
ary
acco
rd-
ing
to th
eir
indi
vidu
al n
eeds
.
Indi
vidu
als
Skill
sta
ndar
ds h
elp
indi
vidu
als
deve
lop
a cl
ear
idea
of
wha
t is
expe
cted
of
tech
nici
ans.
For
stu
dent
s co
nsid
erin
g a
care
er in
the
heat
ing,
air
cond
ition
ing,
and
ref
rige
ratio
n fi
eld,
the
skill
sta
ndar
ds w
ill a
ssis
t in
2 4
ntr
ducT
ion
mat
chin
g th
eir
pers
onal
kno
wle
dge,
abi
litie
s, a
nd in
tere
sts
to th
e kn
owl-
edge
and
ski
lls r
equi
red
of s
ucce
ssfu
l tec
hnic
ians
.Sk
ill s
tand
ards
will
hel
p te
chni
cian
s id
entif
y th
e sk
ills
and
know
ledg
es r
equi
red
for
cont
inue
d su
cces
s an
d as
sess
thei
r in
divi
dual
need
s fo
r ad
ditio
nal t
rain
ing.
Tra
inin
g P
rovi
ders
Skill
sta
ndar
ds e
stab
lish
a cl
ear
set o
f pe
rfor
man
ce e
xpec
tatio
ns th
athe
lp b
oth
educ
ator
s an
d tr
aine
rs. T
hey
assi
st in
the
desi
gn, d
evel
opm
ent,
and
deliv
ery
of s
tude
nt r
ecru
iting
str
ateg
ies,
app
ropr
iate
cur
ricu
lum
, and
trai
ning
con
sist
ent w
ith in
dust
ry n
eeds
. In
the
futu
re, t
rain
ing
prov
ider
sca
n ex
pect
ski
ll st
anda
rds
to b
e th
e ba
sis
for
deve
lopm
ent o
f na
tiona
lcr
eden
tialli
ng s
yste
ms
for
tech
nici
ans
and
prog
ram
s.
Indu
stry
and
Man
agem
ent
Skill
sta
ndar
ds p
rovi
de a
bas
is f
or m
anag
emen
t in
mak
ing
deci
sion
son
rec
ruiti
ng, h
irin
g, tr
aini
ng, a
ssig
ning
, com
pens
atin
g an
d pr
omot
ing
tech
nici
ans.
Dev
elop
men
tal P
roce
ss
The
dev
elop
men
t of
the
skill
sta
ndar
ds e
mph
asiz
ed in
put f
rom
the
heat
ing,
air
-con
ditio
ning
, and
ref
rige
ratio
n in
dust
ry. T
he m
ajor
pha
ses
incl
uded Con
veni
ng a
Pol
icy
Adv
isor
y C
omm
ittee
with
mem
bers
rep
rese
nt-
ing
indu
stry
, tra
de a
ssoc
iatio
ns, l
abor
org
aniz
atio
ns, a
nd e
duca
tion
and
trai
ning
age
ncie
s to
pro
vide
dir
ectio
n an
d in
form
atio
n to
the
proj
ect.
Dev
elop
ing
a lis
t of
task
s pe
rfor
med
by
heat
ing,
air
-con
ditio
ning
and
refr
iger
atio
n te
chni
cian
s, a
sta
ndar
d of
per
form
ance
for
eac
hta
sk, a
nd a
pro
cedu
re f
or p
erfo
rmin
g th
e ta
sk. T
he in
form
atio
n w
asac
quir
ed th
roug
h in
terv
iew
s an
d w
ork
sess
ions
with
tech
nici
ans
and
inst
ruct
ors.
Iden
tifyi
ng th
e kn
owle
dge
asso
ciat
ed w
ith th
e pe
rfor
man
ce o
f ea
chta
sk.
Del
inea
ting
the
skill
sta
ndar
ds u
sing
info
rmat
ion
obta
ined
dur
ing
the
occu
patio
nal a
naly
sis.
Pres
entin
g th
e sk
ill s
tand
ards
to th
e Po
licy
Adv
isor
y C
omm
ittee
for
revi
ew, r
efin
emen
t, an
d ap
prov
al.
262
Sta
ndar
ds
Stan
dard
s ar
e an
impo
rtan
t com
plem
ent t
o th
is in
vent
ory
of s
kills
.St
anda
rds
iden
tify
the
indi
cato
rs o
f su
cces
sful
ski
ll at
tain
men
t. In
this
publ
icat
ion,
the
stan
dard
is in
ferr
ed in
the
skill
sta
tem
ent a
ssoc
iate
d w
ithkn
owle
dge
and
wor
kpla
ce b
ehav
iors
. How
ever
, sta
ndar
ds h
ave
been
wri
tten
for
psyc
hom
otor
ski
ll st
atem
ents
. The
se s
tand
ards
are
indi
cate
dby
a v
ertic
al li
ne im
med
iate
ly to
left
of
the
stat
emen
t.It
is d
iffi
cult
to d
evel
op s
tand
ards
that
ful
fill
the
need
s of
eve
ry u
ser
or u
ser
grou
p of
this
pub
licat
ion.
Bro
adly
sta
ted
skill
s di
ctat
e br
oadl
yst
ated
sta
ndar
ds. I
t is
gene
rally
acc
epte
d th
at tr
ue p
erfo
rman
ce s
tand
ards
can
only
be
wri
tten
at th
e w
ork
activ
ity o
r ta
sk le
vel.
At b
est,
stan
dard
sde
velo
ped
at th
e sk
ill le
vel c
an o
nly
iden
tify
indi
cato
rs o
f sk
ill p
erfo
r-m
ance
. Sta
ndar
ds w
ritte
n fo
r br
oadl
y ba
sed
skill
s ar
e se
vere
ly li
mite
d in
desc
ribi
ng w
ith p
reci
sion
the
outc
omes
of
the
skill
whe
n th
at s
kill
can
bepe
rfor
med
in u
nlim
ited
setti
ngs
and
cont
exts
eac
h w
ith it
s pa
rtic
ular
outc
ome.
Eve
n w
ith th
ese
cave
ats,
the
stan
dard
s pr
ovid
e a
bene
fit t
hat i
sim
port
ant t
o th
e us
er o
f th
is p
ublic
atio
n.
t
Cor
e K
now
ledg
e
Com
mun
icat
ion
To
mer
ely
poss
ess
basi
c re
adin
g, w
ritin
g, a
nd a
rith
met
ic s
kills
in a
tech
nici
an's
wor
ld is
not
eno
ught
echn
icia
ns m
ust a
pply
this
kno
wle
dge
ever
y da
y.C
ore
Kno
wle
dge
is f
amili
arity
, aw
aren
ess,
or
unde
rsta
ndin
g of
prin
cipl
es a
nd f
unda
men
tals
that
for
ms
the
foun
datio
n to
dev
elop
the
mor
e ad
vanc
ed k
now
ledg
e an
d sk
ills
requ
ired
in th
e w
orkp
lace
. Cor
eK
now
ledg
e is
cat
egor
ized
acc
ordi
ng to
com
mun
icat
ion,
mat
hem
atic
s, a
ndsc
ienc
e in
this
stu
dy.
Com
mun
icat
ion
Tec
hnic
ians
mus
t com
preh
end
and
use
a va
riet
y of
com
mun
icat
ion
tech
niqu
es in
thei
r w
ork
incl
udin
g th
e ab
ility
to
Rea
d an
d co
mpr
ehen
d te
chni
cal m
ater
ials
suc
h as
cod
es a
ndre
gula
tions
, ins
talla
tion,
mai
nten
ance
, and
ser
vice
man
uals
,fl
owch
arts
, tab
les,
gra
phs,
sch
emat
ics,
and
dec
isio
n tr
ees.
Mai
ntai
n te
chni
cal a
nd d
iagn
ostic
not
es, c
ompi
le d
ata
and
info
rmat
ion
to c
ompl
ete
repo
rts,
for
ms,
rec
ords
, war
rant
ies,
cont
ract
s, a
nd in
voic
es, a
nd c
ompo
se te
chni
cal r
epor
ts.
Prov
ide
info
rmat
ion,
dis
cuss
pro
blem
s, s
olut
ions
, and
opt
ions
, and
requ
ired
res
ourc
es w
ith w
orkp
lace
ass
ocia
tes
and
cust
omer
s.
Iden
tify
and
loca
te m
anua
ls a
nd o
ther
info
rmat
ion
reso
urce
sre
quir
ed f
or in
stal
latio
n, m
aint
enan
ce, a
nd s
ervi
ce.
3
28
Cor
e K
Wdg
e
Solv
e pr
oble
ms
by u
sing
dia
gnos
tic d
ata,
tech
nica
l inf
orm
atio
n, a
ndsy
stem
kno
wle
dge.
App
ly in
terp
erso
nal s
kills
suc
h as
list
enin
g, te
am b
uild
ing,
and
conf
lict r
esol
utio
n.
App
ly b
asic
key
boar
ding
ski
lls a
nd th
e ab
ility
to u
se s
tand
ard
appl
icat
ion
soft
war
e.
Mat
hem
atic
s
Tec
hnic
ians
mus
t com
preh
end
and
appl
y an
arr
ay o
f m
ath
conc
epts
in p
erfo
rmin
g th
eir
dutie
s in
clud
ing
the
abili
ty to
Add
, sub
trac
t, m
ultip
ly, a
nd d
ivid
e de
cim
als,
fra
ctio
ns, m
ixed
, and
who
le n
umbe
rs
Con
vert
dec
imal
s, f
ract
ions
, rat
ios,
and
per
cent
ages
.
Com
pute
for
mul
as a
nd e
quat
ions
suc
h as
vol
umes
, pre
ssur
es, a
ndde
gree
s.
Con
vert
one
mea
sure
men
t sys
tem
to a
noth
er.
Cal
cula
te p
erce
ntag
e of
incr
ease
or
decr
ease
, mar
k up
or
disc
ount
.
29
Iden
tify
geom
etri
c fi
gure
s; d
istin
guis
h an
gles
, cir
cles
, and
arc
s; a
nddi
scer
n pe
rpen
dicu
lar
(plu
mb)
and
hor
izon
tal (
leve
l) li
nes
and
plan
es.
Mea
sure
dis
tanc
e, a
ngle
s, c
ircl
es, a
nd a
rcs.
Mea
sure
tem
pera
ture
, wei
ght,
volu
me,
and
pre
ssur
e.
Inte
rpre
t gra
phs,
sca
les,
and
gau
ge in
dica
tions
.
Use
a c
alcu
lato
r.
Sci
ence
Tec
hnic
ians
mus
t kno
w th
e sc
ient
ific
pri
ncip
les
that
are
cen
tral
toth
e op
erat
ion
of th
e eq
uipm
ent t
hey
inst
all a
nd s
ervi
ce. T
echn
icia
ns m
ust
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prin
cipl
es o
f he
at a
nd h
eat
tran
sfer
incl
udin
g he
at g
ain/
heat
loss
cal
cula
tions
.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prin
cipl
es o
f co
mbu
stio
n.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
conc
epts
of
tem
pera
ture
, air
prop
ertie
s, p
sych
rom
etri
cs, a
nd th
eir
mea
sure
men
t.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
conc
ept o
f pr
essu
re a
nd it
sm
easu
rem
ent.
Dem
onst
rate
an
unde
rsta
ndin
g of
ent
halp
y.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prin
cipl
es o
f el
ectr
icity
incl
udin
g al
tern
atin
g an
d di
rect
cur
rent
, ele
ctri
cal g
roun
d, s
erie
san
d pa
ralle
l cir
cuits
, and
con
duct
ors
and
insu
lato
rs.
304
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prin
cipl
es o
f el
ectr
ical
mea
sure
men
t inc
ludi
ng v
olta
ge, a
mpe
res,
and
res
ista
nce.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prin
cipl
es o
f m
agne
tism
and
its a
pplic
atio
n in
ele
ctri
cal m
otor
s an
d co
ntro
l sys
tem
s.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
phys
ical
pro
pert
ies
of m
atte
ran
d th
e pr
inci
ples
of
phas
es a
nd s
tate
s of
mat
ter.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prop
ertie
s of
gas
es a
nd th
eir
resp
onse
to c
hang
es in
tem
pera
ture
and
pre
ssur
e.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
basi
cs o
f ch
emic
al r
eact
ions
and
the
effe
ct o
f ch
emic
al c
once
ntra
tion
upon
them
.
Dem
onst
rate
an
unde
rsta
ndin
g of
the
prob
lem
sol
ving
pro
cess
incl
udin
g id
entif
icat
ion
of th
e sy
mpt
oms,
acc
umul
atio
n of
per
tinen
tin
form
atio
n, d
evel
opm
ent o
f a
hypo
thes
is o
r so
lutio
n, c
ompl
etio
n of
corr
ectiv
e ac
tion,
and
che
ckin
g of
res
ults
.
Dem
onst
rate
an
unde
rsta
ndin
g of
phy
sica
l and
che
mic
al p
rope
rtie
sof
the
com
mon
ly u
sed
subs
tanc
es in
the
indu
stry
suc
h as
ref
rige
r-an
ts a
nd h
ydro
carb
ons,
and
thei
r ef
fect
upo
n th
e en
viro
nmen
t.
Occ
upat
iona
l Ski
lls
Occ
upat
ion-
Spe
cific
Ski
lls
Cor
e Sk
ills
repr
esen
t the
bas
ic k
now
ledg
e an
d te
chni
cal s
kills
nee
ded
by h
eatin
g, a
ir c
ondi
tioni
ng, a
nd r
efri
gera
tion
tech
nici
ans
to p
erfo
rmac
cord
ing
to th
e in
dust
ry s
tand
ards
.
Saf
ety
and
Env
ironm
ent
Und
erst
and
and
appl
y sa
fety
reg
ulat
ions
and
pro
cedu
res.
Und
erst
and
and
appl
y fe
dera
l, st
ate,
and
loca
l reg
ulat
ions
for
disp
osin
g of
haz
ardo
us m
ater
ials
.
Und
erst
and
and
appl
y E
nvir
onm
enta
l Pro
tect
ion
Age
ncy
(EPA
)re
gula
tions
on
vent
ing,
rec
over
y, r
ecla
imin
g, a
nd r
ecyc
ling
refr
iger
ants
.
Und
erst
and
and
appl
y th
e D
epar
tmen
t of
Tra
nspo
rtat
ion
(DO
T)
regu
latio
ns o
n th
e tr
ansp
orta
tion
and
hand
ling
of h
azar
dous
mat
eria
ls.
Und
erst
and
and
appl
y O
ccup
atio
nal S
afet
y an
d H
ealth
Adm
inis
trat
ion
(OSH
A)
regu
latio
ns.
Und
erst
and
and
appl
y E
nvir
onm
enta
l Pro
tect
ion
Age
ncy
(EPA
)re
gula
tions
on
indo
or a
ir q
ualit
y an
d ni
trou
s-ox
ide.
325
Cor
e S
kills
Ele
ctric
al P
rinci
ples
Und
erst
and
and
appl
y th
e pr
inci
ples
of
alte
rnat
ing
and
dire
ctcu
rren
t.
Und
erst
and
and
reco
gniz
e th
e co
mm
on s
ingl
e an
d th
ree
phas
evo
ltage
sys
tem
s in
clud
ing
230v
, 60h
z, s
ingl
e ph
ase;
208
v, 6
0hz,
thre
e ph
ase;
230
v, 6
0hz,
thre
e ph
ase;
and
460
v, 6
0hz,
thre
e ph
ase.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
seri
es, p
aral
lel,
and
com
poun
d ci
rcui
ts.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
rel
atio
nshi
ps o
f O
hm's
,K
irch
hoff
's, a
nd W
att's
law
s as
they
app
ly to
ser
ies,
par
alle
l, an
dco
mpo
und
circ
uits
.
Rea
d an
d in
terp
ret v
olta
ge, a
mpe
re, o
hm, m
egoh
m, a
nd w
att
met
ers.
Rea
d an
d in
terp
ret s
chem
atic
dra
win
gs.
Dev
elop
sch
emat
ics
from
ele
ctri
cal l
abel
/line
dia
gram
s.
Rea
d an
d in
terp
ret e
lect
rica
l cod
es.
33
Und
erst
and
and
appl
y th
e pr
oper
ties
and
beha
vior
s of
ele
ctri
cal c
on-
Und
erst
and
and
inte
rpre
t ele
ctri
c m
otor
spe
cifi
catio
ns.
duct
ors
and
insu
lato
rs.
Inst
all a
nd c
onne
ct e
lect
ric
mot
ors.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
elec
tric
al c
ircu
it pr
otec
tion
incl
udin
g fu
ses,
cir
cuit
brea
kers
, and
dis
conn
ect s
witc
hes.
Perf
orm
ele
ctri
c m
otor
mai
nten
ance
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
sing
le a
nd th
ree
phas
e tr
ans-
Tro
uble
shoo
t ele
ctri
c m
otor
s.
form
ers.
Und
erst
and
and
appl
y el
ectr
ical
gro
undi
ng p
rinc
iple
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
elec
tric
al m
easu
rem
ent.
Tro
uble
shoo
t ele
ctri
cal c
ircu
its.
Inst
all e
lect
rica
l pow
er a
nd c
ontr
ol c
ircu
its.
Inst
all a
nd c
onne
ct th
e co
mpo
nent
s of
ele
ctri
cal c
ircu
its.
Ele
ctric
Mot
ors
Und
erst
and
and
appl
y th
e op
erat
ing
prin
cipl
es o
f el
ectr
ic m
otor
s.
Und
erst
and
and
reco
gniz
e th
e ap
plic
atio
n of
var
ious
type
s of
ele
ctri
cm
otor
s.
Und
erst
and
and
reco
gniz
e th
e ap
plic
atio
n of
var
ious
type
s of
cap
aci-
tors
.
Und
erst
and
the
prin
cipl
es a
nd o
pera
tion
of e
lect
ric
mot
or p
rote
ctio
nde
vice
s. 346
Con
trol
s
Und
erst
and
and
appl
y th
e pr
inci
ples
of
safe
ty a
nd o
pera
ting
cont
rol
devi
ces;
for
exa
mpl
e, p
ress
ure
switc
hes,
ther
mos
tats
, etc
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
elec
trom
echa
nica
l con
trol
devi
ces;
for
exa
mpl
e, r
elay
s, c
onta
ctor
s, m
agne
tic s
tart
ers,
tim
ers,
sequ
ence
rs, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
elec
tron
ic c
ontr
ol d
evic
es;
for
exam
ple,
igni
tion
mod
ules
, ele
ctro
nic
timer
s, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
safe
ty a
nd c
ontr
ol c
ircu
its.
Inst
all/s
ervi
ce m
echa
nica
l con
trol
dev
ices
.
Inst
all/s
ervi
ce e
lect
rom
echa
nica
l con
trol
dev
ices
.
Tro
uble
shoo
t mec
hani
cal c
ontr
ol d
evic
es.
Tro
uble
shoo
t ele
ctro
mec
hani
cal d
evic
es.
Tro
uble
shoo
t ele
ctro
nic
cont
rol d
evic
es. 35
Ref
riger
atio
n P
rinci
ples
and
Pra
ctic
es
Und
erst
and
and
appl
y th
e th
eory
of
heat
.
Und
erst
and
and
appl
y th
e pr
oper
ties
of r
efri
gera
nts.
Und
erst
and
and
appl
y th
e m
echa
nica
l ref
rige
ratio
n cy
cle.
Und
erst
and
and
appl
y pr
essu
re/te
mpe
ratu
re c
urve
s an
d ch
arts
.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
the
oper
atio
n of
com
pres
sors
.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
con
dens
ers.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
met
erin
gde
vice
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
eva
pora
tors
.
Und
erst
and
the
oper
atio
n of
ref
rige
ratio
n sy
stem
acc
esso
ries
; for
exam
ple,
rec
eive
rs, a
ccum
ulat
ors,
filt
er/d
ryer
s, s
ight
gla
sses
, val
ves,
etc.
Perf
orm
leak
test
s.
Eva
cuat
e an
d m
easu
re th
e va
cuum
leve
l of
refr
iger
atio
n sy
stem
s
Rec
over
ref
rige
rant
s.
Cha
rge
refr
iger
atio
n sy
stem
s.
Rec
ycle
ref
rige
rant
s.
3641
,
Tro
uble
shoo
t mec
hani
cal r
efri
gera
tion
syst
ems.
Hea
ting
Prin
cipl
es a
nd P
ract
ices
Und
erst
and
and
appl
y th
e pr
inci
ples
of
fuel
sys
tem
des
ign.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air
and
hydr
onic
dis
trib
u-tio
n an
d de
liver
y sy
stem
des
ign.
Und
erst
and
and
appl
y th
e pr
inci
ples
tanc
e he
at s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
forc
ed-a
ir h
eatin
g sy
stem
s.
and
oper
atio
n of
ele
ctri
c re
sis-
and
oper
atio
n of
gas
-fir
ed
Und
erst
and
and
appl
y th
e pr
inci
ples
of
elec
tric
hea
t pum
p sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
forc
ed a
ir h
eatin
g sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
hydr
onic
hea
t sys
tem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
hydr
onic
hea
t sys
tem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
vent
ing
and
drai
n sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
pipe
siz
ing
and
layo
ut f
orbo
th f
uel a
nd h
eat d
istr
ibut
ion.
and
oper
atio
n of
oil-
fire
d
and
oper
atio
n of
gas
-fir
ed
and
oper
atio
n of
oil-
fire
d
7
EST
CO
PY M
AFI
A L
E
37
Air
Con
ditio
ning
Prin
cipl
es a
nd P
ract
ices
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air-
cond
ition
ing
incl
udin
gte
mpe
ratu
re, h
umid
ity, a
nd a
ir m
ovem
ent,
etc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air
dist
ribu
tion
and
deliv
ery
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
cond
ensa
te d
rain
sys
tem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air
filtr
atio
n sy
stem
s.
Des
ign
air
dist
ribu
tion
syst
ems.
Pip
ing
Prin
cipl
es a
nd P
ract
ices
Und
erst
and
and
appl
y th
e pr
inci
ples
of
pipi
ng s
yste
ms
incl
udin
gth
e fa
ctor
s th
at a
ffec
t pip
e se
lect
ion,
pip
e si
ze, a
nd s
yste
m d
esig
n.
Und
erst
and
and
sele
ct th
e pr
oper
fitt
ing
or v
alve
for
spe
cifi
c ap
pli-
catio
ns; f
or e
xam
ple,
glo
be v
alve
s, g
ate
valv
es, a
ngle
val
ves,
che
ckva
lves
, elb
ows,
tees
, uni
ons,
cou
plin
gs, h
alf
unio
ns, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
pipe
acc
esso
ries
; for
ex-
ampl
e, f
lang
es, i
sola
tors
, han
gers
, exp
ansi
on jo
ints
, exp
ansi
on,
loop
s, s
uppo
rts,
insu
latio
n, e
tc.
Perf
orm
cop
per
tubi
ng o
pera
tions
incl
udin
g cu
tting
, fla
ring
,so
lder
ing,
bra
zing
, ben
ding
, sw
aggi
ng, e
tc.
Perf
orm
ste
el p
ipe
oper
atio
ns in
clud
ing
cutti
ng, r
eam
ing,
thre
adin
g,co
nnec
ting,
etc
.
" Pe
rfor
m P
VC
pip
e op
erat
ions
incl
udin
g cu
tting
, con
nect
ing,
etc
.
388
Occ
upat
iona
l Ski
lls
Occ
upat
ion-
Spec
ific
Ski
lls r
epre
sent
the
know
ledg
e an
d te
chni
cal
skill
s ne
eded
by
heat
ing,
air
con
ditio
ning
, and
ref
rige
ratio
n te
chni
cian
sto
inst
all,
mai
ntai
n, r
epai
r an
d op
erat
e eq
uipm
ent.
Thi
s pr
ojec
t gro
uped
Occ
upat
ion-
Spec
ific
Ski
lls in
fiv
e ca
tego
ries
: Res
iden
tial/L
ight
Com
mer
-ci
al H
eatin
g, R
esid
entia
l/Lig
ht C
omm
erci
al A
ir C
ondi
tioni
ng, H
eat
Pum
ps, C
omm
erci
al C
ondi
tione
d-A
ir S
yste
ms,
and
Com
mer
cial
Ref
rig-
erat
ion.
Res
iden
tial a
nd L
ight
Com
mer
cial
Hea
ting
Und
erst
and
and
appl
y th
e pr
inci
ples
of
fuel
sys
tem
des
ign.
Und
erst
and
and
appl
y th
e pr
inci
ples
desi
gn.
Und
erst
and
and
appl
y th
e pr
inci
ples
resi
stan
ce h
eat s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
forc
ed-a
ir h
eatin
g sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
forc
ed a
ir h
eatin
g sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
hydr
onic
hea
t sys
tem
s.
g'r1
10
of a
ir d
istr
ibut
ion
syst
em
and
oper
atio
n of
ele
ctri
c
and
oper
atio
n of
gas
-fir
ed
and
oper
atio
n of
oil-
fire
d
and
oper
atio
n of
gas
-fir
ed
9
ceup
atio
n-S
clfi
c6
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
oil-
fire
dhy
dron
ic h
eat s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
vent
ing
and
drai
n sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
pipe
siz
ing
and
layo
utin
clud
ing
liqui
d pr
opan
e an
d na
tura
l gas
and
oil.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
hum
idif
icat
ion.
Inst
all/s
ervi
ce g
as-f
ired
for
ced
air
heat
ing
syst
ems.
Inst
all/s
ervi
ce o
il-fi
red
forc
ed a
ir h
eatin
g sy
stem
s.
Inst
all/s
ervi
ce h
ydro
nic
heat
sys
tem
s.
Fabr
icat
e/in
stal
l/ser
vice
ven
ting
and
drai
n sy
stem
s.
Inst
all/s
ervi
ce h
umid
ifie
rs.
Tro
uble
shoo
t gas
-fir
ed f
orce
d ai
r he
atin
g sy
stem
s.
Tro
uble
shoo
t oil-
fire
d fo
rced
air
hea
ting
syst
ems.
Tro
uble
shoo
t hyd
roni
c he
at s
yste
ms.
Tro
uble
shoo
t ven
ting
and
drai
n sy
stem
s.
of
Res
iden
tial a
nd L
ight
Com
mer
cial
Air
Con
ditio
ning
Tro
uble
shoo
t air
filt
ratio
n sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air
cond
ition
ing
incl
udin
gR
esid
entia
l and
Lig
ht C
omm
erci
al H
eat P
umps
tem
pera
ture
, hum
idity
, and
air
mov
emen
t, et
c.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air
dist
ribu
tion
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
cond
ensa
te d
rain
sys
tem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
air
filtr
atio
n sy
stem
s.
Des
ign
air
dist
ribu
tion
and
deliv
ery
syst
ems.
Fabr
icat
e an
d in
sula
te a
ir d
istr
ibut
ion
syst
ems.
Inst
all a
ir d
istr
ibut
ion
syst
ems.
Inst
all/s
ervi
ce c
onde
nsat
e dr
ain
syst
ems.
Inst
all/s
ervi
ce a
ir f
iltra
tion
syst
ems.
Inst
all/s
ervi
ce s
plit
air-
cond
ition
ing
syst
ems.
Inst
all/s
ervi
ce p
acka
ged
air-
cond
ition
ing
syst
ems.
Inst
all/s
ervi
ce e
vapo
rativ
e co
oler
s.
Tro
uble
shoo
t air
-con
ditio
ning
sys
tem
s.
Tro
uble
shoo
t eva
pora
tive
cool
ers.
Tro
uble
shoo
t con
dens
ate
drai
n sy
stem
s.
4210
Und
erst
and
and
appl
y th
e pr
inci
ples
of
vapo
r co
mpr
essi
on h
eat
pum
p cy
cles
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
supp
lem
enta
ry h
eat.
Und
erst
and
and
appl
y th
e re
latio
nshi
p of
out
door
am
bien
tte
mpe
ratu
re to
hea
ting
capa
city
.
Und
erst
and
and
appl
y th
e el
ectr
ical
cir
cuitr
y of
air
to a
ir, w
ater
toai
r, a
nd g
roun
d to
air
hea
t pum
ps.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
def
rost
cont
rols
in h
eat p
ump
syst
ems;
for
exa
mpl
e, e
lect
roni
c de
man
dde
fros
t, pr
essu
re, t
ime/
tem
pera
ture
, tim
e, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
the
bala
nce
poin
t of
heat
pum
ps.
Inte
rpre
t the
bal
ance
cha
rt a
nd p
lot t
he b
alan
ce p
oint
of
a he
atpu
mp.
Des
ign
air
dist
ribu
tion
and
deliv
ery
syst
ems.
Fabr
icat
e an
d in
sula
te a
ir d
istr
ibut
ion
syst
ems.
Inst
all/s
ervi
ce v
apor
com
pres
sion
hea
t pum
p sy
stem
s.
Tro
uble
shoo
t vap
or c
ompr
essi
on m
echa
nica
l hea
t pum
p sy
stem
s.
43
Com
mer
cial
Con
ditio
ned-
Air
Sys
tem
s
Und
erst
and
and
appl
y th
e pr
inci
ples
of
cool
ing
tow
ers.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
pneu
mat
ic c
ontr
ol d
evic
es;
for
exam
ple,
ther
mos
tats
, pne
umat
ic a
ctua
tors
, pne
umat
ic s
witc
hes,
pneu
mat
ic r
elay
s, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
pum
ps a
nd c
ircu
lato
rs.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
low
and
hig
h pr
essu
re g
as-
fire
d bo
ilers
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
low
and
hig
h pr
essu
re o
il-fi
red
boile
rs.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
stea
m c
onde
nser
s an
d tr
aps.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
wat
er-c
oole
d co
nden
sers
and
acce
ssor
ies.
Und
erst
and
and
appl
y th
e pr
inci
ples
dehu
mid
ific
atio
n sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
acce
ssor
ies.
Und
erst
and
and
appl
y th
e pr
inci
ples
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
wat
er d
istr
ibut
ion
syst
ems.
of d
esic
cant
coo
ling
and
of li
quid
chi
llers
and
of a
ir d
istr
ibut
ion
and
deliv
ery
g 4
Und
erst
and
and
appl
y th
e pr
inci
ples
of
com
mer
cial
con
ditio
ned-
air
cont
rol s
yste
ms.
Inst
all/m
aint
ain/
serv
ice
pneu
mat
ic c
ontr
ol d
evic
es.
Inst
all/s
ervi
ce p
umps
and
cir
cula
tors
.
Inst
all/a
lign
shaf
ts in
fan
s, p
umps
, and
ope
n ty
pe c
ompr
esso
rs.
Inst
all/s
ervi
ce c
oolin
g to
wer
s an
d ac
cess
orie
s.
Inst
all/s
ervi
ce w
ater
-coo
led
cond
ense
rs a
nd a
cces
sori
es.
Inst
all/s
ervi
ce li
quid
chi
llers
and
acc
esso
ries
.
Inst
all/s
ervi
ce a
ir d
istr
ibut
ion
syst
ems
and
acce
ssor
ies.
Inst
all/s
ervi
ce w
ater
dis
trib
utio
n sy
stem
s an
d ac
cess
orie
s.
Inst
all/s
ervi
ce c
omm
erci
al c
ondi
tione
d-ai
r co
ntro
l sys
tem
s.
Perf
orm
sch
edul
ed m
onito
ring
/test
ing
proc
edur
es o
f co
mm
erci
alco
nditi
oned
-air
sys
tem
s.
Perf
orm
pre
vent
ativ
e in
spec
tion
and
mai
nten
ance
pro
cedu
res
ofco
mm
erci
al c
ondi
tione
d-ai
r sy
stem
s.
Perf
orm
com
mer
cial
con
ditio
ned-
air
syst
em s
tart
-up
proc
edur
es.
Perf
orm
com
mer
cial
con
ditio
ned-
air
syst
em s
hut-
dow
n pr
oced
ures
.
Tro
uble
shoo
t pne
umat
ic c
ontr
ol d
evic
es.
11
En
CO
PY A
VA
EIA
BL
E
45
Tro
uble
shoo
t pum
ps a
nd c
ircu
lato
rs.
Tro
uble
shoo
t coo
ling
tow
ers
and
acce
ssor
ies.
Tro
uble
shoo
t wat
er-c
oole
d co
nden
sers
and
acc
esso
ries
.
Tro
uble
shoo
t liq
uid
chill
ers
and
acce
ssor
ies.
Tro
uble
shoo
t air
dis
trib
utio
n sy
stem
s an
d ac
cess
orie
s.
Tro
uble
shoo
t wat
er d
istr
ibut
ion
syst
ems
and
acce
ssor
ies.
Tro
uble
shoo
t com
mer
cial
con
ditio
ned-
air
cont
rol s
yste
ms.
Com
mer
cial
Ref
riger
atio
n
Und
erst
and
and
appl
y th
e pr
inci
ples
of
high
, med
ium
, low
, and
ultr
a-lo
w te
mpe
ratu
re c
omm
erci
al r
efri
gera
tion
and
thei
rap
plic
atio
ns.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
mec
hani
cal r
efri
gera
tion
syst
ems
in c
omm
erci
al r
efri
gera
tion;
for
exa
mpl
e, w
alk-
in c
oole
rs,
wal
k-in
fre
ezer
s, r
each
-in
case
s, m
ultip
le e
vapo
rato
r sy
stem
s,pa
ckag
ed r
efri
gera
tion
syst
ems,
etc
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
elec
tric
and
hot
gas
def
rost
syst
ems
in c
omm
erci
al r
efri
gera
tion
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
flak
e an
d cu
be ic
e m
aker
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
wat
er c
oole
rs.
4q12
Und
erst
and
and
appl
y th
e pr
inci
ples
of
spec
ific
ref
rige
ratio
n sy
stem
com
pone
nts
used
in c
omm
erci
al r
efri
gera
tion;
for
exa
mpl
e, lo
wam
bien
t con
trol
s, e
vapo
rato
r pr
essu
re r
egul
ator
s, c
rank
case
pre
ssur
ere
gula
tors
, etc
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of
load
cal
cula
tion
and
pipi
ngde
sign
s in
com
mer
cial
ref
rige
ratio
n sy
stem
s.
Cal
cula
te th
e lo
ad, d
esig
n th
e pi
ping
sys
tem
, and
des
ign
the
cont
rol
syst
em o
f a
com
mer
cial
ref
rige
ratio
n sy
stem
.
Inst
all/s
ervi
ce c
omm
erci
al r
efri
gera
tion
syst
ems.
Inst
all/s
ervi
ce ic
e m
aker
s.
Inst
all/s
ervi
ce w
ater
coo
lers
.
Tro
uble
shoo
t hig
h te
mpe
ratu
re c
omm
erci
al r
efri
gera
tion
syst
ems.
Tro
uble
shoo
t med
ium
tem
pera
ture
com
mer
cial
ref
rige
ratio
nsy
stem
s.
Tro
uble
shoo
t low
tem
pera
ture
com
mer
cial
ref
rige
ratio
n sy
stem
s.
Tro
uble
shoo
t ultr
a-lo
w te
mpe
ratu
re c
omm
erci
al r
efri
gera
tion
syst
ems.
Tro
uble
shoo
t ice
mak
ers.
Tro
uble
shoo
t wat
er c
oole
rs.
47
Wor
kpla
ce B
ehav
iors
Com
mun
icat
ions
Pro
fess
iona
lism
Pro
blem
Sol
ving
War
kpA
ED
:ce
Beh
mA
ars
Wor
kpla
ce B
ehav
iors
iden
tify
a va
riet
y of
cha
ract
eris
tics
and
rela
ted
Com
ply
with
est
ablis
hed
rule
s, r
egul
atio
ns, a
nd p
olic
ies.
beha
vior
s re
quir
ed o
f te
chni
cian
s. A
lthou
gh W
orkp
lace
Beh
avio
rs a
re n
otdi
rect
ly li
nked
to te
chni
cal c
ompe
tenc
e, th
ey a
re d
efin
itely
ess
entia
l for
Adh
ere
to f
air
pric
ing
stan
dard
s.te
chni
cian
s to
be
hire
d an
d to
rem
ain
empl
oyab
le. W
orkp
lace
Beh
avio
rspl
ay a
cri
tical
rol
e be
caus
e th
ey r
efle
ct b
oth
tang
ible
and
non
-tan
gibl
eM
aint
ain
wor
k ho
urs
and
sche
dule
.el
emen
ts b
y w
hich
em
ploy
ers,
pee
rs, a
nd c
usto
mer
s ac
tual
ly ju
dge
ate
chni
cian
.Pr
actic
e co
st e
ffec
tiven
ess.
Thi
s pr
ojec
t cla
ssif
ied
Wor
kpla
ce B
ehav
iors
into
fiv
e ca
tego
ries
:E
thic
s, E
nvir
onm
ent,
Com
mun
icat
ion,
Pro
fess
iona
lism
, and
Pro
blem
Prac
tice
time
man
agem
ent.
Solv
ing.
Eth
ics Und
erst
and
and
adhe
re to
the
cond
uct r
ules
of
the
com
pany
.
Ass
ume
resp
onsi
bilit
y fo
r de
cisi
ons
and
actio
ns.
Dem
onst
rate
a w
illin
gnes
s to
lear
n.
Dem
onst
rate
abi
lity
to w
ork
as a
team
mem
ber.
Dis
play
initi
ativ
e.
Perf
orm
qua
lity
wor
k.
Exh
ibit
prid
e in
qua
lity
wor
k.
.
4 8
13
CO
PY A
VA
ILA
BL
E
Env
ironm
ent
Und
erst
and
and
appl
y en
viro
nmen
tal a
nd o
ccup
atio
nal s
afet
y pr
ac-
tices
and
reg
ulat
ions
.
Iden
tify
haza
rdou
s su
bsta
nces
in th
e w
ork
area
.
Mai
ntai
n w
ork
area
.
Res
pond
to e
mer
genc
ies.
Com
mun
icat
ion
Com
mun
icat
e or
ally
with
oth
ers.
Follo
w o
ral a
nd w
ritte
n di
rect
ions
.
49
Dis
play
list
enin
g sk
ills.
Problem Solving
Inte
rpre
t bod
y la
ngua
ge.
Em
ploy
rea
soni
ng s
kills
.
Prep
are
wri
tten
com
mun
icat
ion.
Eva
luat
e re
sults
of
impl
emen
ted
optio
n.
Util
ize
tele
phon
e et
ique
tte.
Eva
luat
e op
tions
.
Professionalism
Iden
tify
solu
tions
to a
pro
blem
and
thei
r im
pact
.
Acc
ept r
espo
nsib
ilitie
s of
an
empl
oyee
.Id
entif
y th
e pr
oble
m.
Ass
ess
busi
ness
imag
e, p
rodu
cts
and/
or s
ervi
ces.
Org
aniz
e w
orkl
oads
.
Ass
ume
resp
onsi
bilit
y fo
r aw
aren
ess
of te
chno
logi
cal a
ndSe
lect
and
impl
emen
t a s
olut
ion
to a
pro
blem
.
regu
lato
ry c
hang
es.
Set p
rior
ities
.
Con
vers
e in
wor
k-re
late
d te
rmin
olog
y.
Dis
play
a p
ositi
ve a
ttitu
de.
Follo
w c
ompa
ny d
ress
and
app
eara
nce
stan
dard
s.
Part
icip
ate
in e
mpl
oym
ent o
rien
tatio
n.
Tre
at p
eopl
e w
ith r
espe
ct.
Und
erst
and
and
appl
y th
e re
spon
sibi
litie
s of
an
empl
oyer
/man
age-
men
t.
Dis
play
saf
e an
d co
urte
ous
driv
ing
prac
tices
.
5014
5
SA
FE
TY
AN
D E
NV
IRO
NM
EN
T
SS
ts
Mai
lvix
Cow
s Sk
i Hs
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y sa
fety
reg
ulat
ions
and
pro
cedu
res.
Und
erst
and
and
appl
y fe
dera
l, st
ate,
and
loca
l reg
ulat
ions
for
disp
osin
g of
haz
ardo
us m
ater
ials
.
Und
erst
and
and
appl
y E
nviro
nmen
tal P
rote
ctio
n A
genc
y (E
PA
) re
gula
tions
on
vent
ing,
rec
over
y, r
ecla
imin
g, a
nd r
ecyc
ling
refr
iger
ants
.
Und
erst
and
and
appl
y th
e D
epar
tmen
t of T
rans
port
atio
n (D
OT
) re
gula
tions
on
the
tran
spor
tatio
n an
d ha
ndlin
g of
haz
ardo
us m
ater
ials
.
Und
erst
and
and
appl
y O
ccup
atio
nal S
afet
y an
d H
ealth
Adm
inis
trat
ion
(OS
HA
) re
gula
tions
.
Und
erst
and
and
appl
y E
nviro
nmen
tal P
rote
ctio
n A
genc
y (E
PA
) re
gula
tions
on
indo
or a
ir qu
ality
and
nitr
ous-
oxid
e.
15
54
ELE
CT
RIC
AL
PR
INC
IPLE
S
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ltern
atin
g an
d di
rect
cur
rent
.
Und
erst
and
and
reco
gniz
e th
e co
mm
on s
ingl
e an
d th
ree
phas
e vo
ltage
sys
tem
s in
clud
ing
230v
, 60h
z, s
ingl
e ph
ase;
208
v, 6
0hz,
thre
e ph
ase;
230v
, 60h
z, th
ree
phas
e; a
nd 4
60v,
60h
z, th
ree
phas
e.
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
erie
s, p
aral
lel,
and
com
poun
d ci
rcui
ts.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
rel
atio
nshi
ps o
f Ohm
's, K
irchh
off's
, and
Wat
t's la
ws
as th
ey a
pply
to s
erie
s, p
aral
lel,
and
com
poun
dci
rcui
ts.
Rea
d an
d in
terp
ret v
olta
ge, a
mpe
re, o
hm, m
egoh
m, a
nd w
ait m
eter
s.
Rea
d an
d in
terp
ret s
chem
atic
dra
win
gs.
Dev
elop
sch
emat
ics
from
ele
ctric
al la
bel/l
ine
diag
ram
s.
Rea
d an
d in
terp
ret e
lect
rical
cod
es.
Und
erst
and
and
appl
y th
e pr
oper
ties
and
beha
vior
s of
ele
ctric
al c
ondu
ctor
s an
d in
sula
tors
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
rical
circ
uit p
rote
ctio
n in
clud
ing
fuse
s, c
ircui
t bre
aker
s, a
nd d
isco
nnec
t sw
itche
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
ingl
e an
d th
ree
phas
e tr
ansf
orm
ers.
Und
erst
and
and
appl
y el
ectr
ical
gro
undi
ng p
rinci
ples
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
rical
mea
sure
men
t.
SK
ILL
ST
AN
DA
RD
Tro
uble
shoo
t ele
ctric
al c
ircui
ts.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, a
nd c
ompl
ete.
The
pat
h of
the
circ
uit(
s) m
ust b
e ch
ecke
d fo
r co
ntin
uity
, the
load
, sou
rce,
and
sw
itch(
s) m
ust b
e ch
ecke
d.P
robl
em(s
) w
ith th
e ci
rcui
t(s)
mus
t be
docu
men
ted
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
Inst
all e
lect
rical
pow
er a
nd c
ontr
ol c
ircui
ts.
Ele
ctric
al p
ower
and
con
trol
circ
uits
mus
t be
inst
alle
d ac
cord
ing
to jo
b sp
ecifi
catio
ns,
man
ufac
ture
r's s
peci
ficat
ions
, and
ele
ctric
al c
odes
. Circ
uits
mus
t be
spec
ified
type
for
inte
nded
ser
vice
and
app
licat
ion.
Wiri
ng m
ust b
e m
echa
nica
lly s
ecur
e an
d el
ectr
ical
cont
inui
ty m
ust b
e es
tabl
ishe
d. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all a
nd c
onne
ct th
e co
mpo
nent
s of
ele
ctric
alci
rcui
ts.
,._a
Ele
ctric
al c
ompo
nent
s m
ust b
e in
stal
led
and
conn
ecte
d ac
cord
ing
to m
anuf
actu
rer's
spec
ifica
tions
and
ele
ctric
al c
ode.
Com
pone
nt m
ust b
e m
echa
nica
lly s
ecur
e, a
nd e
lect
rical
cont
inui
ty m
ust b
e es
tabl
ishe
d. C
ompo
nent
s m
ust p
erfo
rm fu
nctio
ns s
peci
fied
bym
anuf
actu
rer.
App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
5516
58
ELE
CT
RIC
MO
TO
RS
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e op
erat
ing
prin
cipl
es o
f ele
ctric
mot
ors.
Und
erst
and
and
reco
gniz
e th
e ap
plic
atio
n of
var
ious
type
s of
ele
ctric
mot
ors.
Und
erst
and
and
reco
gniz
e th
e ap
plic
atio
n of
var
ious
type
s of
cap
acito
rs.
Und
erst
and
the
prin
cipl
es a
nd o
pera
tion
of e
lect
ric m
otor
pro
tect
ion
devi
ces.
Und
erst
and
and
inte
rpre
t ele
ctric
mot
or s
peci
ficat
ions
.
SK
ILL
ST
AN
DA
RD
Inst
all a
nd c
onne
ct e
lect
ric m
otor
s.T
he m
otor
mus
t be
conn
ecte
d to
the
pow
er s
ourc
e ac
cord
ing
to m
anuf
actu
rer's
spe
cific
atio
nsan
d el
ectr
ical
cod
es a
nd h
ave
a co
de-a
ppro
ved
grou
nd. C
onne
ctio
ns m
ust b
e m
echa
nica
llyse
cure
, and
ele
ctric
al c
ontin
uity
mus
t be
esta
blis
hed.
Mot
or m
ust o
pera
te a
s sp
ecifi
ed w
ithou
tun
war
rant
ed v
ibra
tion.
App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Per
form
ele
ctric
mot
or m
aint
enan
ce.
The
mot
or m
ust b
e cl
eane
d of
deb
ris a
nd lu
bric
ated
acc
ordi
ng to
man
ufac
ture
r'ssp
ecifi
catio
ns. T
he d
rive
belts
mus
t be
alig
ned
and
tens
ione
d as
nec
essa
ry. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Tro
uble
shoo
t ele
ctric
mot
ors.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, a
nd c
ompl
ete
and
follo
w th
em
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
If th
e el
ectr
ic m
otor
doe
s no
t ope
rate
afte
res
tabl
ishi
ng e
lect
rical
pot
entia
l, ch
eck
the
star
ting
com
pone
nt, b
earin
gs, a
nd w
indi
ngs.
Pro
blem
(s)
with
the
devi
ces
and
thei
r su
bsys
tem
s m
ust b
e do
cum
ente
d.
.57
17
58
C N
TR
OLS
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
afet
y an
d op
erat
ing
cont
rol d
evic
es; f
or e
xam
ple,
pre
ssur
e sw
itche
s, th
erm
osta
ts, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
rom
echa
nica
l con
trol
dev
ices
; for
exa
mpl
e, r
elay
s, c
onta
ctor
s, m
agne
tic s
tart
ers,
tim
ers,
sequ
ence
rs, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
roni
c co
ntro
l dev
ices
; for
exa
mpl
e, ig
nitio
n m
odul
es, e
lect
roni
c tim
ers,
etc
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
afet
y an
d co
ntro
l circ
uits
.
SK
ILL
ST
AN
DA
RD
Inst
all/s
ervi
ce m
echa
nica
l con
trol
dev
ices
.M
echa
nica
l con
trol
dev
ices
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
mus
t com
ply
with
app
licab
le c
odes
. The
dev
ices
mus
t be
mec
hani
cally
secu
re a
nd a
ll el
ectr
ical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
e vo
ltage
and
con
trol
spe
cifie
d.P
reve
ntiv
e m
aint
enan
ce m
ust b
e pe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
n.If
a m
echa
nica
l con
trol
dev
ice(
s) r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
lco
mpo
nent
s or
sub
syst
ems
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
orre
plac
ed c
ompo
nent
s m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
esy
stem
mus
t per
form
as
spec
ified
.
Inst
all/s
ervi
ce e
lect
rom
echa
nica
l con
trol
dev
ices
.E
lect
rom
echa
nica
l con
trol
dev
ices
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
mus
t com
ply
with
app
licab
le c
odes
. The
dev
ices
mus
t be
mec
hani
cally
secu
re a
nd a
ll el
ectr
ical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
e vo
ltage
and
con
trol
spe
cifie
d.P
reve
ntiv
e m
aint
enan
ce m
ust b
e pe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
n.If
an e
lect
rom
echa
nica
l con
trol
dev
ice(
s) r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
dan
d al
l com
pone
nts
or s
ubsy
stem
s ou
t of m
anuf
actu
rer's
spe
cific
atio
ns m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
d co
mpo
nent
s m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
nsan
d th
e sy
stem
mus
t per
form
as
spec
ified
.
Tro
uble
shoo
t mec
hani
cal c
ontr
ol d
evic
es.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, a
nd c
ompl
ete
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e de
vice
(s)
or th
eir
subs
yste
m's
norm
al p
aram
eter
s m
ust b
e no
ted.
Sys
tem
com
pone
nts
oper
atin
g ou
t of m
anuf
actu
rer's
spec
ifica
tions
mus
t be
iden
tifie
d. P
robl
em(s
) w
ith th
e de
vice
s an
d th
eir
subs
yste
m m
ust b
edo
cum
ente
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
5918
1 60
CO
NT
RO
LS (
cont
inue
d)
ST
AN
DA
RD
SK
ILL
Tro
uble
shoo
t ele
ctro
mec
hani
cal d
evic
es.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, a
nd c
ompl
ete
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e de
vice
(s)
or th
eir
subs
yste
m's
norm
al p
aram
eter
s m
ust b
e no
ted.
Pro
blem
(s)
with
the
devi
ces
and
thei
r su
bsys
tem
s m
ust b
edo
cum
ente
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t ele
ctro
nic
cont
rol d
evic
es.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, a
nd c
ompl
ete
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
the
devi
ce(s
) or
thei
r su
bsys
tem
'sno
rmal
par
amet
ers
mus
t be
note
d. P
robl
em(s
) w
ith th
e de
vice
s an
d th
eir
subs
yste
ms
mus
t be
docu
men
ted
and
a pl
an fo
r th
e re
pair
mus
t be
form
ulat
ed.
61
19
62
RE
FR
IGE
RA
TIO
N P
RIN
CIP
LES
AN
D P
RA
CT
ICE
S
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e th
eory
of h
eat.
Und
erst
and
and
appl
y th
e pr
oper
ties
of r
efrig
eran
ts.
Und
erst
and
and
appl
y th
e m
echa
nica
l ref
riger
atio
n cy
cle.
Und
erst
and
and
appl
y pr
essu
re/te
mpe
ratu
re c
urve
s an
d ch
arts
.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
the
oper
atio
n of
com
pres
sors
.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
con
dens
ers.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
met
erin
g de
vice
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
eva
pora
tors
.
Und
erst
and
the
oper
atio
n of
ref
riger
atio
n sy
stem
acc
esso
ries;
for
exam
ple,
rec
eive
rs, a
ccum
ulat
ors,
filte
r/dr
yers
, sig
ht g
lass
es, v
alve
s, e
tc.
SK
ILL
ST
AN
DA
RD
Per
form
leak
test
s.Le
aks
mus
t be
dete
cted
, if p
rese
nt. L
eak
dete
ctor
mus
t be
oper
ated
acc
ordi
ng to
man
ufac
ture
r's in
stru
ctio
ns. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Eva
cuat
e an
d m
easu
re th
e va
cuum
leve
l of
refr
iger
atio
n sy
stem
s.R
efrig
erat
ion
circ
uit m
ust b
e ev
acua
ted
to s
peci
fied
vacu
um le
vel u
sing
indu
stry
acc
epta
ble
proc
edur
es. A
pplic
able
saf
ety
proc
edur
e m
ust b
e fo
llow
ed.
Rec
over
ref
riger
ants
.R
efrig
eran
t mus
t be
reco
vere
d us
ing
a ce
rtifi
ed-r
efrig
eran
t rec
over
y un
it. A
ll re
frig
eran
t mus
t be
capt
ured
and
the
syst
em e
vacu
ated
to E
PA
spe
cific
atio
n fo
r th
e cl
ass
of s
yste
m.
Cha
rge
refr
iger
atio
n sy
stem
s.T
he m
echa
nica
l ref
riger
atio
n sy
stem
s m
ust b
e ch
arge
d w
ith th
e co
rrec
t ref
riger
ant t
om
anuf
actu
rer's
spe
cific
atio
ns u
sing
man
ufac
ture
r's c
harg
ing
info
rmat
ion.
If m
anuf
actu
rer's
spec
ifica
tions
are
not
ava
ilabl
e, a
ccep
ted
indu
stry
sta
ndar
ds m
ust b
e ob
serv
ed. W
hen
char
ging
the
syst
em, t
he te
chni
cian
mus
t com
ply
with
the
appl
icab
le e
nviro
nmen
tal a
ndbu
ildin
g co
des
and
safe
ty p
roce
dure
s m
ust b
e ob
serv
ed.
Rec
ycle
ref
riger
ants
.R
ecov
ered
ref
riger
ant m
ust b
e cl
eane
d by
sep
arat
ing
any
oil f
rom
the
refr
iger
ant a
nd p
assi
ngth
roug
h fil
ter/
drye
rs to
red
ucin
g ac
ids,
moi
stur
e, a
nd o
ther
con
tam
inan
ts.
6320
6.
RE
FR
IGE
RA
TIO
N P
RIN
CIP
LES
AN
D P
RA
CT
ICE
S (
cont
inue
d)
SK
ILL
ST
AN
DA
RD
Tro
uble
shoo
t mec
hani
cal r
efrig
erat
ion
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, a
nd c
ompl
ete
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e re
frig
erat
ion
syst
em's
nor
mal
oper
atin
g pa
ram
eter
s m
ust b
e no
ted.
Sys
tem
com
pone
nts
and
devi
ces
oper
atin
g ou
t of
man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
65
21
66
HE
AT
ING
PR
INC
IPLE
S A
ND
PR
AC
TIC
ES
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of f
uel s
yste
m d
esig
n.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir an
d hy
dron
ic d
istr
ibut
ion
and
deliv
ery
syst
em d
esig
n.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
ele
ctric
res
ista
nce
heat
sys
tem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
gas
-fire
d fo
rced
-air
heat
ing
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
ric h
eat p
ump
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
oil-
fired
forc
ed a
ir he
atin
g sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
gas
-fire
d hy
dron
ic h
eat s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
oil-
fired
hyd
roni
c he
at s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
of v
entin
g an
d dr
ain
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
ipe
sizi
ng a
nd la
yout
for
both
and
heat
dis
trib
utio
n.
6722
68
AIR
CO
ND
ITIO
NIN
G P
RIN
CIP
LES
AN
D P
RA
CT
ICE
S
CO
RE
OC
CU
PA
TIO
NA
L K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir-co
nditi
onin
g in
clud
ing
tem
pera
ture
, hum
idity
, and
air
mov
emen
t, et
c.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir di
strib
utio
n an
d de
liver
y sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of c
onde
nsat
e dr
ain
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir fil
trat
ion
syst
ems.
SK
ILL
ST
AN
DA
RD
Des
ign
air
dist
ribut
ion
syst
ems.
The
air
dist
ribut
ion
and
deliv
ery
syst
em m
ust b
e de
sign
ed to
con
form
to a
ll ap
plic
able
cod
es.
The
sys
tem
mus
t pro
vide
airf
low
to r
oom
s co
nsis
tent
with
hea
t los
s/he
at g
ain
calc
ulat
ions
.
g9
23
70
PIP
ING
PR
INC
IPLE
S A
ND
PR
AC
TIC
ES C
OR
E O
CC
UP
AT
ION
AL
KN
OW
LED
GE
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
ipin
g sy
stem
s in
clud
ing
the
fact
ors
that
affe
ct p
ipe
sele
ctio
n, p
ipe
size
, and
sys
tem
des
ign.
Und
erst
and
and
sele
ct th
e pr
oper
fitti
ng o
r va
lve
for
spec
ific
appl
icat
ions
; for
exa
mpl
e, g
lobe
val
ves,
gat
e va
lves
, ang
le v
alve
s, c
heck
val
ves,
elbo
ws,
tees
, uni
ons,
cou
plin
gs, h
alf u
nion
s, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
ipe
acce
ssor
ies;
for
exam
ple,
flan
ges,
isol
ator
s, h
ange
rs, e
xpan
sion
join
ts, e
xpan
sion
, loo
ps, s
uppo
rts,
insu
latio
n, e
tc.
SK
ILL
ST
AN
DA
RD
Per
form
cop
per
tubi
ng o
pera
tions
incl
udin
gcu
tting
, fla
ring,
sol
derin
g, b
razi
ng, b
endi
ng,
swag
ging
, etc
.
Cop
per
pipe
and
tubi
ng o
pera
tions
mus
t be
mad
e ac
cord
ing
to m
anuf
actu
rer's
spe
cific
atio
ns,
job
spec
ifica
tions
, and
cod
es. W
hen
conn
ectin
g co
pper
pip
e or
tubi
ng w
ith in
-line
dev
ices
or
othe
r pi
ping
, the
pro
per
and
acce
ptab
le m
etho
d fo
r jo
inin
g m
ust b
e us
ed. W
hen
join
ed, t
hepi
pe o
r tu
bing
mus
t be
cut s
quar
e, th
e in
terio
r m
ust b
e de
burr
ed, m
ust b
e bo
ttom
ed in
the
conn
ectio
n, a
nd th
e jo
int m
ust b
e tig
ht w
ith n
o le
aks.
Tub
e be
nds
mus
t be
smoo
th a
nd tu
rned
to s
peci
fied
angl
e. T
ubin
g m
ust n
ot fl
atte
n or
kin
k in
ben
ds. R
uns
mus
t con
form
to jo
bre
quire
men
ts. C
lam
ps a
nd s
uppo
rts
mus
t be
inst
alle
d se
cure
ly a
nd m
ust b
e sp
aced
to h
old
pipe
and
tubi
ng w
ith s
peci
fied
pitc
h w
ithou
t sag
ging
bet
wee
n cl
amps
and
sup
port
s.
Per
form
ste
el p
ipe
oper
atio
ns in
clud
ing
cuffi
ng,
ream
ing,
thre
adin
g, c
onne
ctin
g, e
tc.
Ste
el p
ipe
oper
atio
ns m
ust b
e m
ade
acco
rdin
g to
man
ufac
ture
r's s
peci
ficat
ions
, job
spec
ifica
tions
, and
cod
es. W
hen
join
ing
stee
l pip
e w
ith in
-line
dev
ices
or
othe
r pi
pe, t
he p
ipe
mus
t be
cut s
quar
e an
d de
burr
ed a
nd m
ust b
e th
read
ed w
ith r
equi
red
num
ber
of th
read
s.T
hrea
d se
alan
t mus
t be
appl
ied
to p
ipe
so a
s no
t to
ente
r in
side
of p
ipe
whe
n jo
int i
s m
ade.
Join
t mus
t be
mad
e up
with
out l
eaki
ng. R
uns
mus
t con
form
to jo
b re
quire
men
ts. C
lam
ps a
ndsu
ppor
ts m
ust b
e in
stal
led
secu
rely
and
mus
t be
spac
ed to
hol
d pi
pe w
ith s
peci
fied
pitc
hw
ithou
t sag
ging
bet
wee
n cl
amps
and
sup
port
s. A
pplic
able
saf
ety
proc
edur
es m
ust b
efo
llow
ed.
Per
form
PV
C p
ipe
oper
atio
ns in
clud
ing
cutti
ng,
conn
ectin
g, e
tc.
PV
C p
ipe
oper
atio
ns m
ust b
e m
ade
acco
rdin
g to
job
and
man
ufac
ture
r's s
peci
ficat
ions
, and
appl
icab
le c
odes
. Whe
n jo
inin
g P
VC
pip
e w
ith in
-line
dev
ices
or
othe
r pi
pe, t
he p
ipe
mus
t be
cut s
quar
e an
d de
burr
ed, a
nd jo
ined
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
. Joi
nt m
ust
not l
eak.
Pip
e ru
ns m
ust c
onfo
rm to
job
requ
irem
ents
. Cla
mps
and
sup
port
s m
ust b
e in
stal
led
secu
rely
and
mus
t be
spac
ed to
hol
d pi
pe w
ith s
peci
fied
pitc
h w
ithou
t sag
ging
bet
wee
ncl
amps
and
sup
port
s. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
,7
g
24
.7 2
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L H
EA
TIN
G
Ski
ll S
tand
ards
M tr
ix
Occ
upat
i En-
Sped
fic
Skiii
lfis
OC
CU
PA
TIO
N-S
PE
CIF
IC K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of f
uel s
yste
m d
esig
n.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir di
strib
utio
n sy
stem
des
ign.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
ele
ctric
res
ista
nce
heat
sys
tem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
gas
-fire
d fo
rced
-air
heat
ing
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
oil-
fired
forc
ed a
ir he
atin
g sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
gas
-fire
d hy
dron
ic h
eat s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
oil-
fired
hyd
roni
c he
at s
yste
ms.
Und
erst
and
and
appl
y th
e pr
inci
ples
of v
entin
g an
d dr
ain
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
ipe
sizi
ng a
nd la
yout
incl
udin
g liq
uid
prop
ane
and
natu
ral g
as a
nd o
il.
Und
erst
and
and
appl
y th
e pr
inci
ples
of h
umid
ifica
tion.
7325
74
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L H
EA
TIN
G (
cont
inue
d)
SK
ILL
ST
AN
DA
RD
Inst
all/s
ervi
ce g
as-f
ired
forc
ed a
ir he
atin
g sy
stem
s.T
he g
as-f
ired
forc
ed a
ir he
atin
g sy
stem
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
mus
t com
ply
with
app
licab
le c
odes
. The
gas
-fire
d fu
rnac
e m
ust b
em
echa
nica
lly s
ecur
e, v
ente
d pr
oper
ly, a
nd a
ll el
ectr
ical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
evo
ltage
and
con
trol
spe
cifie
d. T
he g
as-f
ired
forc
ed a
ir he
atin
g sy
stem
mus
t per
form
tosp
ecifi
catio
ns, r
un q
uiet
ly, a
nd p
rovi
de th
e ai
r flo
w r
equi
red
by th
e sy
stem
. All
safe
ty d
evic
esm
ust f
unct
ion
corr
ectly
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ion
and
sche
dule
. If t
he g
as-f
ired
forc
ed a
ir he
atin
g sy
stem
req
uire
sse
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
sub
syst
ems
out o
fm
anuf
actu
rer's
spe
cific
atio
ns m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
d co
mpo
nent
s m
ust
perf
orm
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust p
erfo
rm a
s sp
ecifi
ed.
App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Inst
all/s
ervi
ce o
il-fir
ed fo
rced
air
heat
ing
syst
ems.
The
oil-
fired
forc
ed a
ir he
atin
g sy
stem
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
mus
t com
ply
with
app
licab
le c
odes
. The
oil-
fired
furn
ace
mus
t be
mec
hani
cally
sec
ure,
ven
ted
prop
erly
, and
all
elec
tric
al o
r co
ntro
l circ
uits
mus
t pro
vide
the
volta
ge a
nd c
ontr
ol s
peci
fied.
The
oil-
fired
forc
ed a
ir he
atin
g sy
stem
mus
t per
form
tosp
ecifi
catio
ns, r
un q
uiet
ly a
nd p
rovi
de th
e ai
r flo
w r
equi
red
by th
e sy
stem
. All
safe
ty d
evic
esm
ust f
unct
ion
corr
ectly
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ion
and
sche
dule
. If t
he o
il-fir
ed fo
rced
air
heat
ing
syst
em r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
l com
pone
nts
or s
ubsy
stem
s ou
t of
man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
tpe
rfor
m a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
e sy
stem
mus
t per
form
as
spec
ified
.A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce h
ydro
nic
heat
sys
tem
s.T
he g
as-f
ired
or o
il-fir
ed h
ydro
nic
heat
ing
syst
em m
ust b
e in
stal
led
acco
rdin
g to
man
ufac
ture
r'ssp
ecifi
catio
ns, j
ob s
peci
ficat
ions
, and
app
licab
le c
odes
. The
boi
ler,
hyd
roni
c ci
rcul
atin
gde
vice
s an
d pi
ping
mus
t be
size
d to
mee
t str
uctu
re's
hea
ting
requ
irem
ents
and
pro
vide
dom
estic
hot
-wat
er r
equi
rem
ents
. The
hyd
roni
c sy
stem
mus
t be
fille
d ac
cord
ing
tom
anuf
actu
rer's
spe
cific
atio
ns a
nd in
acc
orda
nce
with
man
ufac
ture
r's p
roce
dure
s.
The
aut
omat
ic fe
eder
, exp
ansi
on ta
nk, a
nd z
one
valv
es, a
ir ve
nt, a
nd p
ress
ure
relie
f val
ve(s
)m
ust n
ot le
ak a
nd m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns. I
f the
gas
-fire
d or
oil-f
ired
hydr
onic
hea
ting
syst
em r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
lco
mpo
nent
s or
sub
syst
ems
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
orre
plac
ed c
ompo
nent
s m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
esy
stem
mus
t per
form
as
spec
ified
. App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
2676
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L H
EA
TIN
G (
cont
inue
d)
SK
ILL
ST
AN
DA
RD
Fab
ricat
e/in
stal
l/ser
vice
ven
ting
and
drai
nsy
stem
s.
Ven
ts a
nd d
rain
s m
ust b
e fa
bric
ated
to c
ompl
y w
ith jo
b sp
ecifi
catio
ns, S
MA
CN
A s
tand
ards
,an
d ap
plic
able
cod
es. A
ll se
ams
and
join
ts m
ust b
e se
cure
with
no
leak
age.
The
ven
ts a
nddr
ains
mus
t be
inst
alle
d an
d su
ppor
ted
acco
rdin
g to
job
and
code
spe
cific
atio
ns. I
f ven
ting
and
drai
n sy
stem
s re
quire
ser
vice
, all
subs
yste
ms
and/
or c
ompo
nent
s no
t per
form
ing
tosp
ecifi
catio
ns m
ust b
e id
entif
ied
and
repa
ired
or r
epla
ced.
The
sys
tem
s m
ust p
erfo
rm a
ssp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce h
umid
ifier
s.H
umid
ifier
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spe
cific
atio
ns. U
nit m
ust
oper
ate
quie
tly a
nd r
espo
nd to
the
hum
idis
tat's
sig
nals
.It
mus
t not
leak
or
over
flow
. If t
hehu
mid
ifier
req
uire
s se
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
sub
syst
ems
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust p
erfo
rm a
ssp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Tro
uble
shoo
t gas
-fire
d fo
rced
air
heat
ing
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e ga
s-fir
ed fo
rced
-air
syst
em's
norm
al o
pera
ting
para
met
ers
mus
t be
note
d. G
as v
alve
s, ig
nitio
n m
odul
es, p
ilot l
ight
asse
mbl
ies,
blo
wer
fans
, the
rmos
tats
, filt
ers,
and
oth
er s
yste
m c
ompo
nent
s an
d sa
fety
dev
ices
syst
em c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t oil-
fired
forc
ed a
ir he
atin
g sy
stem
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, com
plet
e, a
nd fo
llow
man
ufac
ture
r's d
iagn
ostic
cha
rt w
hen
avai
labl
e. E
lect
rical
cha
ract
eris
tics,
pre
ssur
es, a
ndte
mpe
ratu
res
or o
ther
dia
gnos
tic c
hara
cter
istic
s ou
tsid
e of
the
oil-f
ired
forc
ed-a
ir sy
stem
'sno
rmal
ope
ratin
g pa
ram
eter
s m
ust b
e no
ted.
Oil
pum
ps, b
low
er fa
ns, t
herm
osta
ts, f
ilter
s, a
ndot
her
syst
em c
ompo
nent
s an
d sa
fety
dev
ices
ope
ratin
g ou
t of m
anuf
actu
rer's
spe
cific
atio
nsm
ust b
e id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
Tro
uble
shoo
t hyd
roni
c he
at s
yste
ms.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e ga
s or
oil-
fired
hyd
roni
c he
atin
gsy
stem
's n
orm
al o
pera
ting
para
met
ers
mus
t be
note
d. C
ircul
ator
s an
d pu
mps
, zon
e va
lves
, air
vent
s, p
ress
ure
relie
f val
ves
and
othe
r sy
stem
com
pone
nts
and
safe
ty d
evic
es o
pera
ting
out o
fm
anuf
actu
rer's
spe
cific
atio
ns m
ust b
e id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
Tro
uble
shoo
t ven
ting
and
drai
n sy
stem
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, com
plet
e, a
nd fo
llow
man
ufac
ture
r's d
iagn
ostic
cha
rt w
hen
avai
labl
e. A
ny r
estr
ictio
n to
flow
or
leak
age
mus
t be
iden
tifie
d an
d a
plan
to r
epai
r m
ust b
e fo
rmul
ated
.
7727
C,
,7 8
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L A
IR C
ON
DIT
ION
ING
OC
CU
PA
TIO
N-S
PE
CIF
IC K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir co
nditi
onin
g in
clud
ing
tem
pera
ture
, hum
idity
, and
air
mov
emen
t, et
c.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir di
strib
utio
n sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of c
onde
nsat
e dr
ain
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir fil
trat
ion
syst
ems.
SK
ILL
ST
AN
DA
RD
Des
ign
air
dist
ribut
ion
and
deliv
ery
syst
ems.
The
air
dist
ribut
ion
and
deliv
ery
syst
em m
ust b
e de
sign
ed to
con
form
to a
ll ap
plic
able
cod
es.
The
sys
tem
mus
t pro
vide
airf
low
to r
oom
s co
nsis
tent
with
hea
t los
s/he
at g
ain
calc
ulat
ions
.
Fab
ricat
e an
d in
sula
te a
ir di
strib
utio
n sy
stem
s.D
uct m
ust b
e fa
bric
ated
and
insu
late
d to
com
ply
with
job
spec
ifica
tions
and
SM
AC
NA
stan
dard
s. A
ll se
ams
mus
t be
secu
re. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all a
ir di
strib
utio
n sy
stem
s.T
he a
ir di
strib
utio
n tr
unk
and
bran
ches
mus
t be
inst
alle
d in
acc
orda
nce
with
the
air
dist
ribut
ion
and
deliv
ery
plan
and
app
licab
le c
odes
. The
trun
k an
d br
anch
es m
ust b
e in
stal
led
and
supp
orte
d se
cure
ly. B
ranc
hes
mus
t be
conn
ecte
d to
the
trun
k an
d jo
ints
mus
t be
seal
ed to
insu
re n
o ai
r le
akag
e. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce c
onde
nsat
e dr
ain
syst
ems.
The
con
dens
ate
drai
n sy
stem
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
mus
t com
ply
with
app
licab
le c
odes
. The
sys
tem
mus
t be
mec
hani
cally
secu
re a
nd a
ll el
ectr
ical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
e vo
ltage
and
con
trol
spe
cifie
d.P
reve
ntiv
e m
aint
enan
ce m
ust b
e pe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
nan
d sc
hedu
le. I
f a c
onde
nsat
e dr
ain
syst
em r
equi
res
serv
ice,
all
subs
yste
ms
and/
orco
mpo
nent
s no
t per
form
ing
to s
peci
ficat
ions
mus
t be
iden
tifie
d an
d re
paire
d or
rep
lace
d. T
hesy
stem
mus
t per
form
as
spec
ified
. App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Inst
all/s
ervi
ce a
ir fil
trat
ion
syst
ems.
The
air
filtr
atio
n sy
stem
mus
t be
inst
alle
d ac
cord
ing
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd jo
bsp
ecifi
catio
ns. T
he s
yste
m m
ust b
e m
echa
nica
lly s
ecur
e an
d al
l ele
ctric
al o
r co
ntro
l circ
uits
mus
t pro
vide
the
volta
ge a
nd c
ontr
ol s
peci
fied.
Air
filtr
atio
n el
emen
ts m
ust b
e cl
eane
d or
repl
aced
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
n, s
ched
ule,
or
as n
eede
d. If
the
air
filtr
atio
n sy
stem
req
uire
s se
rvic
e, a
ll su
bsys
tem
s an
d/or
com
pone
nts
not p
erfo
rmin
g to
spec
ifica
tions
mus
t be
iden
tifie
d an
d re
paire
d or
rep
lace
d. T
he s
yste
m m
ust p
erfo
rm a
ssp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
7928
80
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L A
IR C
ON
DIT
ION
ING
(co
ntin
ued)
SK
ILL
ST
AN
DA
RD
Inst
all/s
ervi
ce s
plit
air-
cond
ition
ing
syst
ems.
The
air
cond
ition
ing
syst
em m
ust b
e in
stal
led
acco
rdin
g to
job
and
man
ufac
ture
r'ssp
ecifi
catio
ns a
nd m
ust c
ompl
y w
ith a
pplic
able
cod
es. T
he u
nit m
ust b
e m
echa
nica
lly s
ecur
ean
d al
l ele
ctric
al o
r co
ntro
l circ
uits
mus
t pro
vide
the
volta
ge a
nd c
ontr
ol s
peci
fied.
The
air
cond
ition
ing
unit
mus
t be
char
ged
as n
eces
sary
, per
form
qui
etly
, to
spec
ifica
tions
, and
pro
vide
the
air
flow
req
uire
d by
the
syst
em. A
ll sa
fety
dev
ices
mus
t fun
ctio
n co
rrec
tly. T
he c
onde
nsat
edr
ain
mus
t mee
t man
ufac
ture
r's s
peci
ficat
ions
and
app
licab
le c
odes
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sche
dule
. If a
uni
t req
uire
s se
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
subs
yste
ms
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
epe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce p
acka
ged
air-
cond
ition
ing
syst
ems.
The
air
cond
ition
ing
syst
em m
ust b
e in
stal
led
acco
rdin
g to
job
and
man
ufac
ture
r'ssp
ecifi
catio
ns a
nd m
ust c
ompl
y w
ith a
pplic
able
cod
es. T
he u
nit m
ust b
e m
echa
nica
lly s
ecur
ean
d al
l ele
ctric
al o
r co
ntro
l circ
uits
mus
t pro
vide
the
volta
ge a
nd c
ontr
ol s
peci
fied.
The
air
cond
ition
ing
unit
mus
t per
form
qui
etly
, to
spec
ifica
tions
, and
pro
vide
the
air
flow
req
uire
d by
the
syst
em. A
ll sa
fety
dev
ices
mus
t fun
ctio
n co
rrec
tly. T
he c
onde
nsat
e dr
ain
mus
t mee
tm
anuf
actu
rer's
spe
cific
atio
ns a
nd a
pplic
able
cod
es.
Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sche
dule
. If a
uni
t req
uire
s se
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
sor
sub
syst
ems
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. T
he u
nit m
ust b
ech
arge
d, r
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r'ssp
ecifi
catio
ns a
nd th
e sy
stem
mus
t be
perf
orm
as
spec
ified
. App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Inst
all/s
ervi
ce e
vapo
rativ
e co
oler
s.T
he e
vapo
rativ
e co
oler
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spe
cific
atio
nsan
d m
ust c
ompl
y w
ith a
pplic
able
cod
es. T
he u
nit m
ust b
e m
echa
nica
lly s
ecur
e an
d al
lel
ectr
ical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
e vo
ltage
and
con
trol
spe
cifie
d. T
he e
vapo
rativ
eco
oler
mus
t per
form
qui
etly
, to
spec
ifica
tions
, and
pro
vide
the
air
flow
req
uire
d by
the
syst
em,
and
all s
afet
y de
vice
s m
ust f
unct
ion
corr
ectly
. The
wat
er d
eliv
ery
pipe
and
ove
rflo
w d
rain
mus
tm
eet m
anuf
actu
rer's
spe
cific
atio
ns a
nd a
pplic
able
cod
es. P
reve
ntiv
e m
aint
enan
ce m
ust b
epe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
ns a
nd s
ched
ule.
If a
uni
t req
uire
sse
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
sub
syst
ems
out o
fm
anuf
actu
rer's
spe
cific
atio
ns m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
d co
mpo
nent
s m
ust
perf
orm
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
e pe
rfor
m a
ssp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
8129
82
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L
SK
ILL
AIR
CO
ND
ITIO
NIN
G (
cont
inue
d)
ST
AN
DA
RD
Tro
uble
shoo
t air-
cond
ition
ing
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e ai
r co
nditi
onin
g sy
stem
's n
orm
alop
erat
ing
para
met
ers
mus
t be
note
d. B
low
er fa
ns, t
herm
osta
ts, f
ilter
s, s
afet
y de
vice
s, a
ndot
her
syst
em c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
dan
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t eva
pora
tive
cool
ers.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, or
othe
rdi
agno
stic
cha
ract
eris
tics
outs
ide
of th
e ev
apor
ativ
e co
oler
's n
orm
al o
pera
ting
para
met
ers
mus
t be
note
d. P
umps
, blo
wer
fans
, the
rmos
tats
, filt
ers,
saf
ety
devi
ces,
and
oth
er s
yste
mco
mpo
nent
s op
erat
ing
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t con
dens
ate
drai
n sy
stem
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, and
com
plet
e. A
ny r
estr
ictio
n to
cond
ensa
te fl
ow th
roug
h th
e dr
ain
or o
ne th
e dr
ains
' com
pone
nts
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t air
filtr
atio
n sy
stem
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, com
plet
e, a
nd fo
llow
man
ufac
ture
r's d
iagn
ostic
cha
rt w
hen
avai
labl
e. E
lect
rical
cha
ract
eris
tics,
air
flow
, or
othe
rdi
agno
stic
cha
ract
eris
tics
outs
ide
of th
e ai
r fil
trat
ion'
s no
rmal
ope
ratin
g pa
ram
eter
s m
ust b
eno
ted.
Any
sys
tem
com
pone
nts
oper
atin
g ou
t of m
anuf
actu
rer's
spe
cific
atio
ns m
ust b
eid
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
8330
84
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L H
EA
T P
UM
PS
OC
CU
PA
TIO
N-S
PE
CIF
IC K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of v
apor
com
pres
sion
hea
t pum
p cy
cles
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
uppl
emen
tary
hea
t.
Und
erst
and
and
appl
y th
e re
latio
nshi
p of
out
door
am
bien
t tem
pera
ture
to h
eatin
g ca
paci
ty.
Und
erst
and
and
appl
y th
e el
ectr
ical
circ
uitr
y of
air
to a
ir, w
ater
to a
ir, a
nd g
roun
d to
air
heat
pum
ps.
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
def
rost
con
trol
s in
hea
t pum
p sy
stem
s; fo
r ex
ampl
e, e
lect
roni
c de
man
d de
fros
t, pr
essu
re,
time/
tem
pera
ture
, tim
e, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of t
he b
alan
ce p
oint
of h
eat p
umps
.
SK
ILL
ST
AN
DA
RD
Inte
rpre
t the
bal
ance
cha
rt a
nd p
lot t
he b
alan
cepo
int o
f a h
eat p
ump.
A c
hart
of h
eat g
ain/
heat
loss
and
equ
ipm
ent c
apac
ity m
ust b
e co
nstr
ucte
d an
d th
e ba
lanc
epo
int d
eter
min
ed. S
uppl
emen
tal h
eat s
tage
s m
ust b
e de
term
ined
and
set
in th
e eq
uipm
ent.
Des
ign
air
dist
ribut
ion
and
deliv
ery
syst
ems.
The
air
dist
ribut
ion
and
deliv
ery
syst
em m
ust b
e de
sign
ed to
con
form
to a
ll ap
plic
able
cod
es.
The
sys
tem
mus
t pro
vide
airf
low
to r
oom
s co
nsis
tent
with
hea
t los
s/he
at g
ain
calc
ulat
ions
.
Fab
ricat
e an
d in
sula
te a
ir di
strib
utio
n sy
stem
s.D
uct m
ust b
e fa
bric
ated
and
insu
late
d to
com
ply
with
job
spec
ifica
tions
and
SM
AC
NA
stan
dard
s. A
ll se
ams
mus
t be
secu
re. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce v
apor
com
pres
sion
hea
t pum
psy
stem
s.
The
vap
or c
ompr
essi
on h
eat p
ump
syst
em m
ust b
e in
stal
led
acco
rdin
g to
job
and
man
ufac
ture
r's s
peci
ficat
ions
and
mus
t com
ply
with
app
licab
le c
odes
. The
uni
t mus
t be
mec
hani
cally
sec
ure
and
all e
lect
rical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
e vo
ltage
and
con
trol
spec
ified
. The
hea
t pum
p un
it an
d its
sup
plem
enta
ry h
eat s
yste
m m
ust p
erfo
rm q
uiet
ly, t
osp
ecifi
catio
ns, a
nd p
rovi
de th
e ai
r flo
w r
equi
red
by th
e sy
stem
. All
safe
ty d
evic
es m
ust f
unct
ion
corr
ectly
. The
con
dens
ate
drai
n m
ust m
eet m
anuf
actu
rer's
spe
cific
atio
ns a
nd a
pplic
able
code
s. P
reve
ntiv
e m
aint
enan
ce m
ust b
e pe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spec
ifica
tions
and
sch
edul
e. If
a u
nit r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
lco
mpo
nent
s or
sub
syst
ems
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
e pe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
8
31
RE
SID
EN
TIA
L A
ND
LIG
HT
CO
MM
ER
CIA
L H
EA
T P
UM
PS
(co
ntin
ued)
SK
ILL
ST
AN
DA
RD
Tro
uble
shoo
t vap
or c
ompr
essi
on m
echa
nica
l hea
tpu
mp
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e ai
r co
nditi
onin
g sy
stem
's n
orm
alop
erat
ing
para
met
ers
mus
t be
note
d. B
low
er fa
ns, t
herm
osta
ts, f
ilter
s, s
afet
y de
vice
s, a
ndot
her
syst
em c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
dan
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
8732
CO
MM
ER
CIA
L C
ON
DIT
ION
ED
-AIR
SY
ST
EM
S
OC
CU
PA
TIO
N-S
PE
CIF
IC K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of c
oolin
g to
wer
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
neum
atic
con
trol
dev
ices
; for
exa
mpl
e, th
erm
osta
ts, p
neum
atic
act
uato
rs, p
neum
atic
sw
itche
s,pn
eum
atic
rel
ays,
etc
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
umps
and
circ
ulat
ors.
Und
erst
and
and
appl
y th
e pr
inci
ples
of l
ow a
nd h
igh
pres
sure
gas
-fire
d bo
ilers
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of l
ow a
nd h
igh
pres
sure
oil-
fired
boi
lers
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
team
con
dens
ers
and
trap
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of w
ater
-coo
led
cond
ense
rs a
nd a
cces
sorie
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of d
esic
cant
coo
ling
and
dehu
mid
ifica
tion
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of l
iqui
d ch
iller
s an
d ac
cess
orie
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir di
strib
utio
n an
d de
liver
y sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of w
ater
dis
trib
utio
n sy
stem
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of c
omm
erci
al c
ondi
tione
d-ai
r co
ntro
l sys
tem
s.
SK
ILL
ST
AN
DA
RD
Inst
all/m
aint
ain/
serv
ice
pneu
mat
ic c
ontr
olde
vice
s.T
he p
neum
atic
con
trol
dev
ices
mus
t be
inst
alle
d ac
cord
ing
to m
anuf
actu
rer's
and
job
spec
ifica
tions
. Pne
umat
ic c
ontr
ol d
evic
es (
valv
e ac
tuat
ors,
rel
ays,
ther
mos
tatic
rec
eive
rs,
rece
iver
con
trol
lers
, etc
.) m
ust o
pera
te p
rope
rly a
nd c
ause
the
syst
em c
ompo
nent
s to
inte
ract
mai
ntai
ning
the
sele
cted
con
ditio
ns in
the
cond
ition
ed s
pace
. Pre
vent
ive
mai
nten
ance
mus
tbe
per
form
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
the
pneu
mat
ic c
ontr
ol d
evic
es r
equi
re r
epai
r, th
e pr
oble
m m
ust b
e di
agno
sed
and
all
com
pone
nts
or s
ubsy
stem
s ou
t of s
peci
ficat
ion
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
epe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
8933
CO
MM
ER
CIA
L C
ON
DIT
ION
ED
-AIR
SK
ILL
SY
ST
EM
S (
cont
inue
d)
ST
AN
DA
RD
Inst
all/s
ervi
ce p
umps
and
circ
ulat
ors.
The
pum
ps a
nd c
ircul
ator
s m
ust b
e in
stal
led
acco
rdin
g to
man
ufac
ture
r's a
nd jo
bsp
ecifi
catio
ns. P
umps
and
circ
ulat
ors
mus
t ope
rate
qui
etly
with
min
imum
vib
ratio
n an
d m
ust
deliv
er th
e re
quire
d flo
w a
t req
uire
d pr
essu
re w
ithou
t lea
kage
. Pre
vent
ive
mai
nten
ance
mus
tbe
per
form
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
the
pum
psan
d ci
rcul
ator
s re
quire
rep
air,
the
prob
lem
(s)
mus
t be
diag
nose
d an
d al
l com
pone
nts
orsu
bsys
tem
s ou
t of s
peci
ficat
ion
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
tpe
rfor
m a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
e sy
stem
mus
t be
perf
orm
as
spec
ified
. App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Inst
all/a
lign
shaf
ts in
fans
, pum
ps, a
nd o
pen
type
com
pres
sors
.T
he s
hafts
mus
t be
inst
alle
d ac
cord
ing
to m
anuf
actu
rer's
and
job
spec
ifica
tions
. Sha
fts m
ust
oper
ate
quie
tly w
ith m
inim
um v
ibra
tion.
The
sha
ft an
d its
driv
e co
mpo
nent
s m
ust b
e al
igne
dan
d te
nsio
ned
corr
ectly
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
sha
fts o
r th
eir
driv
e co
mpo
nent
s re
quire
rep
air,
the
prob
lem
mus
t be
diag
nose
d an
d al
l com
pone
nts
out o
f spe
cific
atio
n m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
d co
mpo
nent
s m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
nsan
d th
e sy
stem
mus
t be
perf
orm
as
spec
ified
. App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Inst
all/s
ervi
ce c
oolin
g to
wer
s an
d ac
cess
orie
s.T
he w
ater
tow
er a
nd it
s ac
cess
orie
s m
ust b
e in
stal
led
acco
rdin
g to
job
and
man
ufac
ture
r'ssp
ecifi
catio
ns a
nd a
pplic
able
cod
es. T
he w
ater
tow
er a
nd it
s ac
cess
orie
s (p
umps
, che
mic
alfe
ed, s
trai
ners
, etc
.) m
ust o
pera
te to
spe
cific
atio
ns. P
reve
ntiv
e m
aint
enan
ce m
ust b
epe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
ns a
nd s
ched
ule.
If th
e w
ater
tow
eran
d its
acc
esso
ries
requ
ire r
epai
r, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
subs
yste
ms
out o
f spe
cific
atio
n m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
d co
mpo
nent
s m
ust
perf
orm
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
e pe
rfor
m a
ssp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce w
ater
-coo
led
cond
ense
rs a
ndac
cess
orie
s.T
he w
ater
con
dens
er a
nd it
s ac
cess
orie
s m
ust b
e in
stal
led
acco
rdin
g to
job
and
man
ufac
ture
r's s
peci
ficat
ions
and
app
licab
le c
odes
. The
wat
er c
onde
nser
and
its
acce
ssor
ies
(pum
ps, f
ilter
s, e
tc.)
mus
t ope
rate
to s
peci
ficat
ions
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
the
wat
erco
nden
ser
and
its a
cces
sorie
s re
quire
rep
air,
the
prob
lem
mus
t be
diag
nose
d an
d al
lco
mpo
nent
s or
sub
syst
ems
out o
f spe
cific
atio
n m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
dco
mpo
nent
s m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
e sy
stem
mus
t be
perf
orm
ed a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
9134
92
CO
MM
ER
CIA
L C
ON
DIT
ION
ED
-AIR
SY
ST
EM
S (
cont
inue
d)
SK
ILL
ST
AN
DA
RD
Inst
all/s
ervi
ce li
quid
chi
llers
and
acc
esso
ries.
The
liqu
id c
hille
r an
d its
acc
esso
ries
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
app
licab
le c
odes
. The
liqu
id c
hille
r an
d its
acc
esso
ries
(pum
ps, f
ilter
s, e
tc.)
mus
t ope
rate
to s
peci
ficat
ions
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
the
liqui
d ch
iller
and
its
acce
ssor
ies
requ
irere
pair,
the
prob
lem
mus
t be
diag
nose
d an
d al
l com
pone
nts
or s
ubsy
stem
s ou
t of s
peci
ficat
ion
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
e pe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce a
ir di
strib
utio
n sy
stem
s an
dac
cess
orie
s.T
he a
ir di
strib
utio
n sy
stem
's tr
unk
and
bran
ches
mus
t be
inst
alle
d in
acc
orda
nce
with
the
air
dist
ribut
ion
and
deliv
ery
plan
and
app
licab
le c
odes
. The
trun
k an
d br
anch
es m
ust b
e in
stal
led
and
supp
orte
d se
cure
ly. J
oint
s m
ust b
e se
aled
to in
sure
no
air
leak
age.
All
acce
ssor
ies
mus
tbe
inst
alle
d ac
cord
ing
to m
anuf
actu
rer's
spe
cific
atio
n an
d ap
plic
able
cod
es. T
he a
cces
sorie
sm
ust p
erfo
rm a
s sp
ecifi
ed. P
reve
ntiv
e m
aint
enan
ce m
ust b
e pe
rfor
med
in a
ccor
danc
e w
ithm
anuf
actu
rer's
spe
cific
atio
ns a
nd s
ched
ule.
If th
e sy
stem
req
uire
s se
rvic
e, th
e pr
oble
m m
ust
be d
iagn
osed
and
all
com
pone
nts
or s
ubsy
stem
s ou
t of s
peci
ficat
ion
mus
t be
iden
tifie
d.R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
e pe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce w
ater
dis
trib
utio
n sy
stem
s an
dac
cess
orie
s.T
he w
ater
dis
trib
utio
n sy
stem
mus
t be
inst
alle
d in
acc
orda
nce
with
the
wat
er d
istr
ibut
ion
and
deliv
ery
plan
and
app
licab
le c
odes
. The
pip
e m
ust b
e in
stal
led
in a
sec
ure
man
ner,
sup
port
edto
con
form
with
goo
d pr
actic
es a
nd a
pplic
able
cod
es. A
ll ac
cess
orie
s m
ust b
e in
stal
led
acco
rdin
g to
man
ufac
ture
r's s
peci
ficat
ion
and
appl
icab
le c
odes
and
mus
t per
form
as
spec
ified
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r'ssp
ecifi
catio
ns a
nd s
ched
ule.
If th
e sy
stem
req
uire
s se
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
sub
syst
ems
out o
f spe
cific
atio
n m
ust b
e id
entif
ied.
Rep
aire
d or
repl
aced
com
pone
nts
mus
t per
form
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust b
e pe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Inst
all/s
ervi
ce c
omm
erci
al c
ondi
tione
d-ai
r co
ntro
lsy
stem
s.
-. q I
The
com
mer
cial
con
ditio
ned-
air
syst
em m
ust b
e in
stal
led
acco
rdin
g to
job
and
man
ufac
ture
r'ssp
ecifi
catio
ns a
nd m
ust c
ompl
y w
ith a
pplic
able
cod
es. T
he s
yste
m m
ust b
e m
echa
nica
llyse
cure
and
all
elec
tric
al o
r co
ntro
l circ
uits
mus
t pro
vide
the
volta
ge a
nd c
ontr
ol s
peci
fied.
The
syst
em in
clud
ing
heat
ing
units
, ref
riger
atio
n un
its, a
nd a
ir ha
ndle
rs m
ust p
erfo
rm to
spec
ifica
tions
and
all
safe
ty d
evic
es m
ust f
unct
ion
corr
ectly
. Ele
ctro
nic,
ele
ctric
al, p
neum
atic
,an
d m
echa
nica
l con
trol
dev
ices
mus
t per
form
as
spec
ified
. Pre
vent
ive
mai
nten
ance
mus
t be
perf
orm
ed in
acc
orda
nce
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
a u
nit r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
l com
pone
nts
or s
ubsy
stem
s ou
t of
man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
tpe
rfor
m a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
e sy
stem
mus
t be
perf
orm
as
spec
ified
. App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
3594
CO
MM
ER
CIA
L C
ON
DIT
ION
ED
-AIR
SK
ILL
SY
ST
EM
S (
cont
inue
d)
ST
AN
DA
RD
Per
form
sch
edul
ed m
onito
ring/
test
ing
proc
edur
esof
com
mer
cial
con
ditio
ned-
air
syst
ems.
The
com
mer
cial
con
ditio
ned
air
syst
em's
pre
ssur
es, t
empe
ratu
res,
per
form
ance
, and
saf
ety
cont
rol s
yste
ms
mus
t be
mon
itore
d/te
sted
acc
ordi
ng to
site
and
man
ufac
ture
r's p
roce
dure
san
d sc
hedu
les.
Sub
syst
ems
and
com
pone
nts
incl
udin
g bo
iler
wat
er le
vel,
boile
rpr
essu
re/te
mpe
ratu
re, s
tack
tem
pera
ture
s, p
ump
pres
sure
s, fl
ame
mon
itor,
feed
tank
, and
com
bust
ion
mus
t be
mon
itore
d/te
sted
as
sche
dule
d an
d re
sults
rec
orde
d in
the
appr
opria
telo
gs. O
ther
saf
ety
rela
ted
syst
ems
incl
udin
g w
ater
cut
-off,
con
tinuo
us b
low
dow
n, s
afet
y re
lief
valv
es, a
nd s
team
trap
s m
ust b
e in
spec
ted,
mon
itore
d, a
nd te
sted
acc
ordi
ng to
site
sch
edul
es.
Liqu
id c
hille
rs, a
ir co
mpr
esso
rs, c
oolin
g to
wer
s, a
ir ha
ndle
rs, e
mer
genc
y ge
nera
tors
, and
oth
ersy
stem
com
pone
nts
mus
t be
mon
itore
d, te
sted
, or
insp
ecte
d ac
cord
ing
to s
ite a
ndm
anuf
actu
rer's
sch
edul
e. R
esul
ts o
f mon
itorin
g, te
stin
g, o
r in
spec
ting
mus
t be
reco
rded
and
devi
atio
ns fr
om n
orm
al o
pera
ting
stat
us m
ust b
e re
port
ed a
nd a
ppro
pria
te a
ctio
n ta
ken.
Per
form
pre
vent
ativ
e in
spec
tion
and
mai
nten
ance
pro
cedu
res
of c
omm
erci
alco
nditi
oned
-air
syst
ems.
Pre
vent
ativ
e m
aint
enan
ce fo
r ea
ch c
ompo
nent
of t
he c
omm
erci
al c
ondi
tione
d-ai
r sy
stem
mus
t be
perf
orm
ed a
s sc
hedu
led
or r
equi
red
by s
ite a
nd/o
r m
anuf
actu
rer's
pro
cedu
res.
Com
pone
nts
and
thei
r in
stru
men
ts a
nd c
ontr
ols
incl
udin
g bo
ilers
, pum
ps, f
eed
tank
s, v
alve
s,an
d sa
fety
-rel
ated
con
trol
s, g
auge
s, a
nd r
elie
f val
ves
mus
t be
insp
ecte
d an
d pr
even
tativ
em
aint
enan
ce a
ctiv
ities
per
form
ed a
s re
quire
d. L
iqui
d ch
iller
s, a
ir co
mpr
esso
rs, c
oolin
g to
wer
s,ai
r ha
ndle
rs, e
mer
genc
y ge
nera
tors
, and
oth
er s
yste
m c
ompo
nent
s m
ust b
e in
spec
ted
and
prev
enta
tive
mai
nten
ance
act
iviti
es a
ccom
plis
hed
acco
rdin
g to
site
and
man
ufac
ture
r'spr
oced
ures
. Res
ults
of i
nspe
ctio
ns a
nd p
reve
ntat
ive
mai
nten
ance
mus
t be
reco
rded
and
devi
atio
ns fr
om n
orm
al o
pera
ting
stat
us m
ust b
e re
port
ed a
nd a
ppro
pria
te a
ctio
n ta
ken.
Per
form
com
mer
cial
con
ditio
ned-
air
syst
em s
tart
-up
pro
cedu
res.
Sta
rt-u
p of
con
ditio
ned-
air
syst
ems
mus
t adh
ere
to th
e do
cum
ente
d st
art-
up p
roce
dure
s fo
r th
esy
stem
. Sta
rt-u
p pr
oced
ures
incl
udin
g m
onito
ring,
test
ing,
and
doc
umen
ting
mus
t be
com
plet
e an
d in
the
sequ
ence
pre
scrib
ed b
y th
e st
art-
up m
anua
l. A
ny c
hara
cter
istic
s ou
tsid
eth
e no
rmal
val
ues
of th
e sy
stem
req
uire
s ha
lting
the
star
t-up
pro
cess
and
ret
urni
ng th
e sy
stem
to a
shu
t-do
wn
stat
us. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Per
form
com
mer
cial
con
ditio
ned-
air
syst
em s
hut-
dow
n pr
oced
ures
.S
hut-
dow
n of
con
ditio
ned-
air
syst
ems
mus
t adh
ere
to th
e do
cum
ente
d sh
ut-d
own
proc
edur
esfo
r th
e sy
stem
. Shu
t-do
wn
proc
edur
es in
clud
ing
mon
itorin
g, te
stin
g, a
nd d
ocum
entin
g m
ust b
eco
mpl
ete
and
in th
e se
quen
ce p
rosc
ribed
by
the
shut
-dow
n m
anua
l. A
ny c
hara
cter
istic
sou
tsid
e th
e no
rmal
val
ues
of th
e sy
stem
req
uire
s do
cum
entin
g th
e pr
oble
m. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Tro
uble
shoo
t pne
umat
ic c
ontr
ol d
evic
es.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Any
cha
ract
eris
tics
outs
ide
of th
e pn
eum
atic
cont
rol s
yste
m a
nd it
s de
vice
s' n
orm
al o
pera
ting
para
met
ers
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir fo
rmul
ated
.
3696
CO
MM
ER
CIA
L C
ON
DIT
ION
ED
-AIR
SY
ST
EM
S (
cont
inue
d)
SK
ILL
ST
AN
DA
RD
Tro
uble
shoo
t pum
ps a
nd c
ircul
ator
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, com
plet
e, a
nd fo
llow
man
ufac
ture
r's d
iagn
ostic
cha
rt w
hen
avai
labl
e. T
he p
ump/
circ
ulat
or's
ele
ctric
alch
arac
teris
tics,
out
put f
low
and
pre
ssur
es, o
r ot
her
diag
nost
ic c
hara
cter
istic
s ou
tsid
e of
the
com
pone
nt's
nor
mal
ope
ratin
g pa
ram
eter
s m
ust b
e id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
Tro
uble
shoo
t coo
ling
tow
ers
and
acce
ssor
ies.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
The
coo
ling
tow
er a
nd it
s ac
cess
orie
s(p
umps
, che
mic
al fe
eds,
str
aine
rs, e
tc.)
ele
ctric
al c
hara
cter
istic
s, te
mpe
ratu
res,
pre
ssur
es o
rot
her
diag
nost
ic c
hara
cter
istic
s ou
tsid
e of
the
com
pone
nt's
nor
mal
ope
ratin
g pa
ram
eter
s m
ust
be id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
Tro
uble
shoo
t wat
er-c
oole
d co
nden
sers
and
acce
ssor
ies.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
The
wat
er-c
oole
d co
nden
ser
and
itsac
cess
orie
s' e
lect
rical
cha
ract
eris
tics,
pre
ssur
es, a
nd te
mpe
ratu
res
or o
ther
dia
gnos
ticch
arac
teris
tics
outs
ide
of th
e co
mpo
nent
's n
orm
al o
pera
ting
para
met
ers
mus
t be
iden
tifie
dan
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
. The
sys
tem
mus
t be
insp
ecte
d fo
r cl
eanl
ines
s an
dm
iner
al d
epos
it bu
ild-u
p. If
the
syst
em is
con
tam
inat
ed o
r ha
s ex
cess
ive
depo
sit b
uild
-up,
the
syst
em m
ust b
e cl
eane
d.
Tro
uble
shoo
t liq
uid
chill
ers
and
acce
ssor
ies.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
The
liqu
id c
hille
r an
d its
acc
esso
ries'
ele
ctric
alch
arac
teris
tics,
pre
ssur
es, a
nd te
mpe
ratu
res
or o
ther
dia
gnos
tic c
hara
cter
istic
s ou
tsid
e of
the
com
pone
nt's
nor
mal
ope
ratin
g pa
ram
eter
s m
ust b
e id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed. T
he s
yste
m m
ust b
e in
spec
ted
for
clea
nlin
ess
and
min
eral
dep
osit
build
-up.
If th
esy
stem
is c
onta
min
ated
or
has
exce
ssiv
e de
posi
t bui
ld-u
p, th
e sy
stem
mus
t be
clea
ned.
Tro
uble
shoo
t air
dist
ribut
ion
syst
ems
and
acce
ssor
ies.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
The
air
dist
ribut
ion
syst
em a
nd it
s ac
cess
orie
s'el
ectr
ical
cha
ract
eris
tics,
pre
ssur
es, a
nd te
mpe
ratu
res
or o
ther
dia
gnos
tic c
hara
cter
istic
sou
tsid
e of
the
com
pone
nt's
nor
mal
Ope
ratin
g pa
ram
eter
s m
ust b
e id
entif
ied
and
a pl
an fo
rre
pair
mus
t be
form
ulat
ed.
Tro
uble
shoo
t wat
er d
istr
ibut
ion
syst
ems
and
acce
ssor
ies.
.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
The
wat
er d
istr
ibut
ion
syst
em a
nd it
sac
cess
orie
s' e
lect
rical
cha
ract
eris
tics,
pre
ssur
es, t
empe
ratu
res
or o
ther
dia
gnos
ticch
arac
teris
tics
outs
ide
of th
e co
mpo
nent
's n
orm
al o
pera
ting
para
met
ers
mus
t be
iden
tifie
dan
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
9737
CO
MM
ER
CIA
L C
ON
DIT
ION
ED
-AIR
SY
ST
EM
S (
cont
inue
d)
SK
ILL
ST
AN
DA
RD
Tro
uble
shoo
t com
mer
cial
con
ditio
ned-
air
cont
rol
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
,te
mpe
ratu
res
or o
ther
dia
gnos
tic c
hara
cter
istic
s ou
tsid
e of
the
com
mer
cial
con
ditio
ned-
air
syst
em's
nor
mal
ope
ratin
g pa
ram
eter
s m
ust b
e no
ted.
Boi
lers
, air
hand
lers
, liq
uid
chill
ers,
cool
ing
tow
ers,
wat
er-c
oole
d co
nden
sers
, circ
ulat
ors
and
pum
ps, z
one
valv
es, a
ir ve
nts,
pres
sure
rel
ief v
alve
s an
d ot
her
syst
em c
ompo
nent
s an
d sa
fety
dev
ices
ope
ratin
g ou
t of
man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
99
38
100
CO
MM
ER
CIA
L R
EF
RIG
ER
AT
ION
OC
CU
PA
TIO
N-S
PE
CIF
IC K
NO
WLE
DG
E
Und
erst
and
and
appl
y th
e pr
inci
ples
of h
igh,
med
ium
, low
, and
ultr
a-lo
w te
mpe
ratu
re c
omm
erci
al r
efrig
erat
ion
and
thei
r ap
plic
atio
ns.
Und
erst
and
and
appl
y th
e pr
inci
ples
of m
echa
nica
l ref
riger
atio
n sy
stem
s in
com
mer
cial
ref
riger
atio
n; fo
r ex
ampl
e, w
alk-
in c
oole
rs, w
alk-
infr
eeze
rs, r
each
-in c
ases
, mul
tiple
eva
pora
tor
syst
ems,
pac
kage
d re
frig
erat
ion
syst
ems,
etc
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
ric a
nd h
ot g
as d
efro
st s
yste
ms
in c
omm
erci
al r
efrig
erat
ion
syst
ems.
Und
erst
and
and
appl
y th
e pr
inci
ples
of f
lake
and
cub
e ic
e m
aker
s.
Und
erst
and
and
appl
y th
e pr
inci
ples
of w
ater
coo
lers
.
Und
erst
and
and
appl
y th
e pr
inci
ples
of s
peci
fic r
efrig
erat
ion
syst
em c
ompo
nent
s us
ed in
com
mer
cial
ref
riger
atio
n; fo
r ex
ampl
e, lo
w a
mbi
ent
cont
rols
, eva
pora
tor
pres
sure
reg
ulat
ors,
cra
nkca
se p
ress
ure
regu
lato
rs, e
tc.
Und
erst
and
and
appl
y th
e pr
inci
ples
of l
oad
calc
ulat
ion
and
pipi
ng d
esig
ns in
com
mer
cial
ref
riger
atio
n sy
stem
s.
SK
ILL
ST
AN
DA
RD
Cal
cula
te th
e lo
ad, d
esig
n th
e pi
ping
sys
tem
, and
desi
gn th
e co
ntro
l sys
tem
of a
com
mer
cial
refr
iger
atio
n sy
stem
.
The
des
ign
of th
e co
mm
erci
al r
efrig
erat
ion
syst
em m
ust m
eet t
he r
efrig
erat
ion
need
s of
the
area
and
con
form
to a
ll ap
plic
able
cod
es. H
eat g
ain/
heat
loss
mus
t be
calc
ulat
ed fo
r ea
chzo
ne. T
he a
ir di
strib
utio
n an
d de
liver
y sy
stem
mus
t be
desi
gned
to p
rovi
de a
ir flo
w r
equi
red
byth
e zo
ne(s
). T
he p
ipin
g sy
stem
for
deliv
erin
g co
olin
g m
edia
mus
t be
desi
gned
to m
eet t
hene
eds
of th
e zo
ne(s
) an
d th
eir
spec
ific
equi
pmen
t and
sys
tem
. The
con
trol
sys
tem
mus
t be
desi
gn to
pro
vide
con
trol
of t
he te
mpe
ratu
re r
equi
red
in th
e zo
ne a
nd th
e de
fros
t and
oth
erre
quire
men
ts o
f the
ref
riger
atio
n sy
stem
.
Inst
all/s
ervi
ce c
omm
erci
al r
efrig
erat
ion
syst
ems.
The
com
mer
cial
ref
riger
atio
n sy
stem
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spec
ifica
tions
and
mus
t com
ply
with
app
licab
le c
odes
. The
uni
t mus
t be
mec
hani
cally
sec
ure
and
all e
lect
rical
or
cont
rol c
ircui
ts m
ust p
rovi
de th
e vo
ltage
and
con
trol
spe
cifie
d. T
here
frig
erat
ion
syst
em m
ust p
erfo
rm q
uiet
ly a
nd to
spe
cific
atio
ns, a
ll sa
fety
dev
ices
mus
t fun
ctio
nco
rrec
tly, a
nd p
rovi
de th
e te
mpe
ratu
res
requ
ired
by th
e sp
ecifi
catio
ns. P
reve
ntiv
em
aint
enan
ce m
ust b
e pe
rfor
med
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
ns a
ndsc
hedu
le. I
f a u
nit r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
l com
pone
nts
orsu
bsys
tem
s ou
t of m
anuf
actu
rer's
spe
cific
atio
ns m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
dco
mpo
nent
s m
ust p
erfo
rm a
ccor
ding
to m
anuf
actu
rer's
spe
cific
atio
ns a
nd th
e sy
stem
mus
tpe
rfor
m a
s sp
ecifi
ed. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
3910
2
CO
MM
ER
CIA
L R
EF
RIG
ER
AT
ION
(co
ntin
ued)
SK
ILL
ST
AN
DA
RD
Inst
all/s
ervi
ce ic
e m
aker
s.T
he ic
e m
aker
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spe
cific
atio
ns a
nd m
ust
com
ply
with
app
licab
le c
odes
. The
uni
t mus
t be
mec
hani
cally
sec
ure
and
mus
t com
ply
with
appl
icab
le e
lect
rical
or
plum
bing
cod
es. T
he ic
e m
aker
mus
t per
form
qui
etly
and
to d
esig
nsp
ecifi
catio
ns. T
he w
ater
mus
t be
clea
n an
d th
e w
ater
leve
l adj
uste
d to
spe
cific
atio
ns. T
hew
ater
sup
ply
and
cond
ensa
te d
rain
mus
t mee
t man
ufac
ture
r's s
peci
ficat
ions
and
app
licab
leco
des.
The
uni
ts d
efro
st s
yste
m m
ust p
erfo
rm to
spe
cific
atio
ns. P
reve
ntiv
e m
aint
enan
ce m
ust
be p
erfo
rmed
in a
ccor
danc
e w
ith m
anuf
actu
rer's
spe
cific
atio
ns a
nd s
ched
ule.
If a
uni
tre
quire
s se
rvic
e, th
e pr
oble
m m
ust b
e di
agno
sed
and
all c
ompo
nent
s or
sub
syst
ems
out o
fm
anuf
actu
rer's
spe
cific
atio
ns m
ust b
e id
entif
ied.
Rep
aire
d or
rep
lace
d co
mpo
nent
s m
ust
perf
orm
acc
ordi
ng to
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust p
erfo
rm a
s sp
ecifi
edw
hen
retu
rned
to d
uty.
App
licab
le s
afet
y pr
oced
ures
mus
t be
follo
wed
.
Inst
all/s
ervi
ce w
ater
coo
lers
.T
he w
ater
coo
ler
mus
t be
inst
alle
d ac
cord
ing
to jo
b an
d m
anuf
actu
rer's
spe
cific
atio
ns a
ndm
ust c
ompl
y w
ith a
pplic
able
cod
es. T
he u
nit m
ust b
e m
echa
nica
lly s
ecur
e w
ith n
o le
aks
and
mus
t com
ply
with
app
licab
le e
lect
rical
or
plum
bing
cod
es. T
he u
nit m
ust p
erfo
rm q
uiet
ly a
ndco
ol w
ater
to d
esig
n sp
ecifi
catio
ns. P
reve
ntiv
e m
aint
enan
ce m
ust b
e pe
rfor
med
inac
cord
ance
with
man
ufac
ture
r's s
peci
ficat
ions
and
sch
edul
e. If
a u
nit r
equi
res
serv
ice,
the
prob
lem
mus
t be
diag
nose
d an
d al
l com
pone
nts
or s
ubsy
stem
s ou
t of m
anuf
actu
rer's
spec
ifica
tions
mus
t be
iden
tifie
d. R
epai
red
or r
epla
ced
com
pone
nts
mus
t per
form
acc
ordi
ngto
man
ufac
ture
r's s
peci
ficat
ions
and
the
syst
em m
ust p
erfo
rm a
s sp
ecifi
ed w
hen
retu
rned
tose
rvic
e. A
pplic
able
saf
ety
proc
edur
es m
ust b
e fo
llow
ed.
Tro
uble
shoo
t hig
h te
mpe
ratu
re c
omm
erci
alre
frig
erat
ion
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e re
frig
erat
ion
syst
em's
nor
mal
oper
atin
g pa
ram
eter
s m
ust b
e no
ted.
Blo
wer
fans
, the
rmos
tats
, filt
ers,
and
oth
er s
yste
mco
mpo
nent
s an
d sa
fety
dev
ices
sys
tem
com
pone
nts
oper
atin
g ou
t of m
anuf
actu
rer's
spec
ifica
tions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t med
ium
tem
pera
ture
com
mer
cial
refr
iger
atio
n sy
stem
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, com
plet
e, a
nd fo
llow
man
ufac
ture
r's d
iagn
ostic
cha
rt w
hen
avai
labl
e. E
lect
rical
cha
ract
eris
tics,
pre
ssur
es, a
ndte
mpe
ratu
res
or o
ther
dia
gnos
tic c
hara
cter
istic
s ou
tsid
e of
the
refr
iger
atio
n sy
stem
's n
orm
alop
erat
ing
para
met
ers
mus
t be
note
d. B
low
er fa
ns, t
herm
osta
ts, f
ilter
s, a
nd o
ther
sys
tem
com
pone
nts
and
safe
ty d
evic
es s
yste
m c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r'ssp
ecifi
catio
ns m
ust b
e id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
103
4010
4
CO
MM
ER
CIA
L R
EF
RIG
ER
AT
ION
(co
ntin
ued)
SK
ILL
ST
AN
DA
RD
Tro
uble
shoo
t low
tem
pera
ture
com
mer
cial
refr
iger
atio
n sy
stem
s.D
iagn
ostic
pro
cedu
res
mus
t be
syst
emat
ic, c
ompr
ehen
sive
, com
plet
e, a
nd fo
llow
man
ufac
ture
r's d
iagn
ostic
cha
rt w
hen
avai
labl
e. E
lect
rical
cha
ract
eris
tics,
pre
ssur
es, a
ndte
mpe
ratu
res
or o
ther
dia
gnos
tic c
hara
cter
istic
s ou
tsid
e of
the
refr
iger
atio
n sy
stem
's n
orm
alop
erat
ing
para
met
ers
mus
t be
note
d. B
low
er fa
ns, t
herm
osta
ts, f
ilter
s, a
nd o
ther
sys
tem
com
pone
nts
and
safe
ty d
evic
es s
yste
m c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r'ssp
ecifi
catio
ns m
ust b
e id
entif
ied
and
a pl
an fo
r re
pair
mus
t be
form
ulat
ed.
Tro
uble
shoo
t ultr
a-lo
w te
mpe
ratu
re c
omm
erci
alre
frig
erat
ion
syst
ems.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e re
frig
erat
ion
syst
em's
nor
mal
oper
atin
g pa
ram
eter
s m
ust b
e no
ted.
Blo
wer
fans
, the
rmos
tats
, filt
ers,
and
oth
er s
yste
mco
mpo
nent
s an
d sa
fety
dev
ices
sys
tem
com
pone
nts
oper
atin
g ou
t of m
anuf
actu
rer's
spec
ifica
tions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t ice
mak
ers.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of ic
e m
aker
's n
orm
al o
pera
ting
para
met
ers
mus
t be
note
d. B
low
er fa
ns, t
herm
osta
ts, f
ilter
s, a
nd o
ther
sys
tem
com
pone
nts
and
safe
ty d
evic
es s
yste
m c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
d an
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
Tro
uble
shoo
t wat
er c
oole
rs.
Dia
gnos
tic p
roce
dure
s m
ust b
e sy
stem
atic
, com
preh
ensi
ve, c
ompl
ete,
and
follo
wm
anuf
actu
rer's
dia
gnos
tic c
hart
whe
n av
aila
ble.
Ele
ctric
al c
hara
cter
istic
s, p
ress
ures
, and
tem
pera
ture
s or
oth
er d
iagn
ostic
cha
ract
eris
tics
outs
ide
of th
e w
ater
coo
ler's
nor
mal
ope
ratin
gpa
ram
eter
s m
ust b
e no
ted.
The
rmos
tats
, filt
ers,
and
oth
er s
yste
m c
ompo
nent
s an
d sa
fety
devi
ces
syst
em c
ompo
nent
s op
erat
ing
out o
f man
ufac
ture
r's s
peci
ficat
ions
mus
t be
iden
tifie
dan
d a
plan
for
repa
ir m
ust b
e fo
rmul
ated
.
105
41
1O6
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
0 0 a -0 , 0 0.
0 -7, -. F
ii a
° 0) a -1 ; it. o.
0 -7, - 3 a
>. r,
* 0 * g;
l 0 c g0
° a 71 a 0.
0 7, - ii a
° a -9 ; a.
0 -7, - i3 °-
a m-
a 0. E" 3
r- 0 *
Cor
e S
kills
Saf
ety
and
Env
ironm
enta
l
1U
nder
stan
d an
d ap
ply
safe
ty r
egul
atio
ns a
nd p
roce
dure
s.
2U
nder
stan
d an
d ap
ply
fede
ral,
stat
e, a
nd lo
cal r
egul
atio
ns fo
r de
spos
ing
of h
azar
dous
mat
eria
ls.
3U
nder
stan
d an
d ap
ply
Env
ironm
enta
l Pro
tect
ion
Age
ncy
(E. P
. A.)
reg
ulat
ions
on
vent
ing,
rec
over
y, r
ecla
imin
g, a
nd r
ecyc
ling
refr
iger
ants
.
4U
nder
stan
d an
d ap
ply
the
Dep
artm
ent o
f Tra
nspo
rtat
ion
(D. 0
. T.)
reg
ulat
ions
on
the
tran
spor
tatio
n an
d ha
ndlin
g of
haz
ardo
usm
ater
ials
.
5U
nder
stan
d an
d ap
ply
the
Occ
upat
ion
Saf
ety
and
Hea
lth A
ct's
(O
SH
A)
regu
latio
ns.
6U
nder
stan
d an
d ap
ply
Env
ironm
enta
l Pro
tect
ion
Age
ncy
(EP
A)
regu
latio
n on
indo
or a
ir qu
ality
and
nitr
ous-
oxid
e.
Ele
ctric
al
Prin
cipl
es
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f alte
rnat
ing
and
dire
ct c
urre
nt.
2U
nder
stan
d an
d re
cogn
ize
the
com
mon
sin
gle
and
thre
e ph
ase
volta
ge s
yste
ms
incl
udin
g 23
0v, 6
0hz,
sin
gle
phas
e; 2
08v,
60hz
, thr
ee p
hase
; 230
v, 6
0hz,
thre
e ph
ase;
and
460
v, 6
0hz,
thre
e ph
ase
syst
ems.
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ser
ies,
par
alle
l, an
d co
mpo
und
circ
uits
.
4U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd r
elat
ions
hips
of O
hm's
, Kirc
hhof
f's, a
nd W
att's
law
s as
they
app
ly to
ser
ies,
par
alle
l,an
d co
mpo
und
circ
uits
.
5R
ead
and
inte
rpre
t vol
tage
, am
pere
, Ohm
, meg
ohm
, and
wat
t met
ers.
1.41
atria
6R
ead
and
inte
rpre
t sch
emat
ic d
raw
ings
.
7D
evel
op s
chem
atic
s fr
om e
lect
rical
labe
l and
line
dia
gram
s.
8R
ead
and
inte
rpre
t ele
ctric
al c
odes
.
9U
nder
stan
d an
d ap
ply
the
prop
ertie
s an
d be
havi
ors
of e
lect
rical
con
duct
ors
and
insu
lato
rs.
0.11
110
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
rical
circ
uit p
rote
ctio
n in
clud
ing
fuse
s, c
ircui
t bre
aker
s, a
nd d
isco
nnec
t sw
itche
s.
109
A-
1
BE
ST C
OPY
11.0
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
0 gi m a
0 = -9 a °-
0 ' m Fil a
0 = Ti a a
-.
* a, iv -.
9, 2 m aA
F) m rlf a
o -9 a a
g,) ,, irl a
o Ti
3 a
i a. ,-
K a, 0, c 3
,- o *
11U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f sin
gle
and
thre
e ph
ase
tran
sfor
mer
s.00
0000
0000
0000
012
Und
erst
and
and
appl
y el
ectr
ical
gro
undi
ng p
rinci
ples
.00
0000
0000
0000
013
Und
erst
and
and
appl
y th
e pr
inci
ples
of e
lect
rical
mea
sure
men
t.00
0000
0000
0000
014
Tro
uble
shoo
t ele
ctric
al c
ircui
ts.
0000
0000
0000
000
15In
stal
l ele
ctric
al p
ower
and
con
trol
circ
uits
.00
0000
0000
0000
016
Inst
all a
nd c
onne
ct th
e co
mpo
nent
s of
ele
ctric
al c
ircui
ts.
0000
0000
0000
000
Ele
ctric
Mot
ors
1U
nder
stan
d an
d ap
ply
the
oper
atin
g pr
inci
ples
of e
lect
ric m
otor
s.00
0000
0000
0050
52
Und
erst
and
and
reco
gniz
e th
e ap
plic
atio
n of
var
ious
type
s of
ele
ctric
mot
ors.
0000
0000
0000
000
3U
nder
stan
d an
d re
cogn
ize
the
appl
icat
ion
of v
ario
us ty
pes
of c
apac
itors
.00
0000
0000
0000
04
Und
erst
and
the
prin
cipl
es a
nd o
pera
tion
of e
lect
ric m
otor
pro
tect
ion
devi
ces.
0000
0000
0000
000
5U
nder
stan
d an
d in
terp
ret e
lect
ric m
otor
spe
cific
atio
ns.
0000
0000
0000
005
6In
stal
l and
con
nect
ele
ctric
mot
ors.
0000
0000
0000
005
7P
erfo
rm e
lect
ric m
otor
mai
nten
ance
.00
0000
0000
0000
58
Tro
uble
shoo
t ele
ctric
mot
ors.
0000
0000
0000
Con
trol
s
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f saf
ety
and
oper
atin
g co
ntro
l dev
ices
; for
exa
mpl
e, p
ress
ure
switc
hes,
ther
mos
tats
, etc
.al
l
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ele
ctro
mec
hani
cal c
ontr
ol d
evic
es; f
or e
xam
ple,
rel
ays,
con
trac
tors
, mag
netic
sta
rter
s,tim
ers,
seq
uenc
es, e
tc.
0000
0000
0000
000
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ele
ctro
nic
cont
rol d
evic
es; f
or e
xam
ple,
igni
tion
mod
ules
, ele
ctro
nic
timer
s, e
tc.
0000
0000
0000
000
4U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f saf
ety
and
cont
rol c
ircui
ts.
0000
0000
0000
000
A-
2
BE
ST C
OPY
AV
AIL
AB
LE
112
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
° 0 0 -9 g 0.
0_m -7, 3 0-
G") 0 -11 g 0.
0 _ T, °
>. r
* 0 ,
-9 0 . EL
0° a' ° 71 g 0.
0 = -n i° ; 11 g 0.
0 -= -n F23
,
x .3C 0 0, E 3
. o *
5In
stal
Vse
rvic
e m
echa
nica
l con
trol
dev
ices
.00
0000
0000
0000
06
Inst
all/s
ervi
ce e
lect
rom
echa
nica
l con
trol
dev
ices
.00
0000
0000
000
000
7T
roub
lesh
oot m
echa
nica
l con
trol
dev
ices
.00
0000
0000
000
8T
roub
lesh
oot e
lect
rom
echa
nica
l dev
ices
.00
0000
0000
009
Tro
uble
shoo
t ele
ctro
nic
cont
rol d
evic
es.
0000
0000
0000
000
Mec
hani
cal
Ref
riger
atio
n P
rinci
ples
and
Pra
ctic
es
1U
nder
stan
d an
d ap
ply
the
theo
ry o
f hea
t.00
0000
0000
0000
02
Und
erst
and
and
appl
y th
e pr
oper
ties
of r
efrig
eran
ts.
0000
03
Und
erst
and
and
appl
y th
e m
echa
nica
l ref
riger
atio
n cy
cle.
0000
04
Und
erst
and
and
appl
y pr
essu
re/te
mpe
ratu
re c
urve
s an
d ch
arts
.00
000
00
5U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd th
e op
erat
ion
of c
ompr
esso
rs.
0000
00
06
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
con
dens
ers.
0000
00
07
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
met
erin
g de
vice
s.00
000
00
08
Und
erst
and
and
appl
y th
e pr
inci
ples
and
ope
ratio
n of
eva
pora
tors
.00
000
00
9U
nder
stan
d th
e op
erat
ion
of r
efrig
erat
ion
syst
em a
cces
sorie
s; fo
r ex
ampl
e, r
ecei
vers
, acc
umul
ator
s, fi
lter/
drye
rs, s
ight
gla
sses
,va
lves
, etc
.11
1111
.0
10P
erfo
rm le
ak te
sts.
11E
vacu
ate
and
mea
sure
the
vacu
um le
vel o
f ref
riger
atio
n sy
stem
s.0
00
00
12R
ecov
er r
efrig
eran
ts.
0000
13C
harg
e re
frig
erat
ion
syst
ems.
00
113
A-
3
BE
ST C
OPY
AV
AII
IAB
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
NC
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
C)
0, En -n (.7; a.
0 . 21 aj
° 11) UP -n a0.
0 21 i... E
-.59
. .9 2 D . .
00 M m a a
0 T:. ii
0 ° 7 a a
0 -7 g. cb 0-
I a- =C
D 0, C 3
r- 0 *
14R
ecyc
le r
efrig
eran
ts.
0015
Tro
uble
shoo
t mec
hani
cal r
efrig
erat
ion
syst
ems.
0000
Hea
ting
Prin
cipl
es a
nd P
ract
ices
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f fue
l sys
tem
des
ign.
0000
000
0000
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f air
and
hydr
onic
dis
trib
utio
n an
d de
liver
y sy
stem
des
ign.
0000
000
0000
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of e
lect
ric r
esis
tanc
e he
at s
yste
ms.
4U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of g
as-f
ired
forc
ed-a
ir he
atin
g sy
stem
s.
5U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of o
il-fir
ed fo
rced
-air
heat
sys
tem
s.
6U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ele
ctric
hea
t pum
p sy
stem
s.
7U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of g
as-f
ired
hydr
onic
hea
t sys
tem
s.
8U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of o
il-fir
ed h
ydro
nic
heat
sys
tem
s.
9U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ven
ting
and
drai
n sy
stem
s.00
0000
000
0010
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
ipe
sizi
ng a
nd la
yout
for
both
fuel
and
hea
t dis
trib
utio
n.00
0000
000
00A
ir C
ondi
tioni
ng P
rinci
ples
and
Pra
ctic
es
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f air-
cond
ition
ing
incl
udin
g te
mpe
ratu
re, h
umid
ity, a
nd a
ir m
ovem
ent,
etc.
0000
ilo
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f air
dist
ribut
ion
and
deliv
ery
syst
ems.
0000
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f con
dens
ate
drai
n sy
stem
s.00
4U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f air
filtr
atio
n sy
stem
s.00
5505
5D
esig
n ai
r di
strib
utio
n sy
stem
s.
A-
4
BE
ST C
OPY
AV
AIL
AB
LE
116
).
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
NC
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
°O WT
TO
.0.
-7! i
C)0
°T (1;. 0.
-7!
2.?:
c!, N -
Q 2 , ..0
6)0
co ''',-. _. ip' 0.
_ T! a °-
GIO
PI w-n 8. 0.
-. -T! a °-
Ig (I
) c 3
r- 0 4
Pip
ing
Prin
cipl
es a
nd P
ract
ices
1
Und
erst
and
and
appl
y th
e pr
inci
ples
of p
ipin
g sy
stem
s in
clud
ing
the
fact
ors
that
affe
ct p
ipe
sele
ctio
n, p
ipe
size
, and
sys
tem
desi
gn.
Und
erst
and
and
sele
ct th
e pr
oper
fitti
ng o
r va
lve
for
spec
ific
appl
icat
ions
; for
exa
mpl
e, g
lobe
val
ves,
gat
e va
lves
, ang
le v
alve
s,'
chec
k va
lves
, elb
ows,
tees
, uni
ons,
cou
plin
gs, h
alf u
nion
s, e
tc.
0.41
1100
0.1.
0000
000
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f pip
e ac
cess
orie
s; fo
r ex
ampl
e, fl
ange
s, is
olat
ors,
han
gers
, exp
ansi
on jo
ints
, exp
ansi
on,
loop
s, s
uppo
rts,
insu
latio
n, e
tc.
1100
1100
1110
0000
1110
000
4P
erfo
rm c
oppe
r tu
bing
ope
ratio
ns in
clud
ing
cutti
ng, f
larin
g, s
olde
ring,
bra
zing
, ben
ding
, sw
agin
g, e
tc.
6100
0111
.011
10.1
0000
05
Per
form
ste
el p
ipe
oper
atio
ns in
clud
ing
cutti
ng, r
eam
ing,
thre
adin
g, c
onne
ctin
g, e
tc.
0.0
6P
erfo
rm P
VC
pip
e op
erat
ions
incl
udin
g cu
tting
, con
nect
ing,
etc
.00
0O
ccup
atio
n S
peci
fic S
kills
Res
iden
tial a
nd L
ight
Com
mer
cial
Hea
ting
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f fue
l sys
tem
des
ign.
0011
1000
000
0.2
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir di
strib
utio
n sy
stem
des
ign.
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of e
lect
ric r
esis
tanc
e he
at s
yste
ms.
4U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of g
as-f
ired
forc
ed-a
ir he
atin
g sy
stem
s.
5U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of o
il-fir
ed fo
rced
air
heat
ing
syst
ems.
6U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of g
as-f
ired
hydr
onic
hea
t sys
tem
s.
7U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of o
il-fir
ed h
ydro
nic
heat
sys
tem
s.
8U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ven
ting
and
drai
n sy
stem
s.00
000
0000
9U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f pip
e si
zing
and
layo
ut in
clud
ing
liqui
d pr
opan
e an
d na
tura
l gas
and
oil.
0000
000
0010
Und
erst
and
and
appl
y th
e pr
inci
ples
of h
umid
ifica
tion.
11In
stal
l/ser
vice
gas
-fire
d fo
rced
air
heat
ing
syst
ems.
117
A-
5
CO
PY A
VA
ILA
BL
E11
8
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
g , ) 0 -9 ci;
ia.
0 °-
is) 0 -9 F
oc a
0 3 °-
, "i.* a; -
0 S0
2 0 -11 3 a
0 . =,' 0 °-
0 0 19 3 a
0. ';'' 0 °-
2 gm C
D 0. E 3
1 0 *
12In
stal
Vse
rvic
e oi
l-fire
d fo
rced
air
heat
ing
syst
ems.
13In
stal
Vse
rvic
e hy
dron
ic h
eat s
yste
ms.
aa
14F
abric
ate/
inst
alV
serv
ice
vent
ing
and
drai
n sy
stem
s.04
)000
411,
/PO
ID
15In
stal
Vse
rvic
e hu
mid
ifier
s.ID
16T
roub
lesh
oot g
as-f
ired
forc
ed a
ir he
atin
g sy
stem
s.
17T
roub
lesh
oot o
il-fir
ed fo
rced
air
heat
ing
syst
ems.
ID
18T
roub
lesh
oot h
ydro
nic
heat
sys
tem
s.a
IDE
D
19T
roub
lesh
oot v
entin
g an
d dr
ain
syst
ems.
004)
00ID
..R
esid
entia
l and
Lig
ht C
omm
erci
al A
ir C
ondi
tioni
ng
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f air-
cond
ition
ing
incl
udin
g te
mpe
ratu
re, h
umid
ity, a
nd a
ir mov
emen
t, et
c.E
DG
I1.
0a
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f air
dist
ribut
ion
syst
ems.
0011
10ID
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f con
dens
ate
drai
n sy
stem
s.E
DO
IDIII
IS4
Und
erst
and
and
appl
y th
e pr
inci
ples
of a
ir fil
trat
ion
syst
ems.
0000
5D
esig
n ai
r di
strib
utio
n an
d de
liver
y sy
stem
s.ID
ED
aID
ID
6F
abric
ate
and
insu
late
air
dist
ribut
ion
syst
ems.
ED
0000
7In
stal
l air
dist
ribut
ion
syst
ems.
ID/b
eE
DO
ED
8In
stal
Vse
rvic
e co
nden
sate
dra
in s
yste
ms.
ED00
0E
DO
a9
Inst
alV
serv
ice
air
filtr
atio
n sy
stem
s.ID
0041
,0III
10In
stal
Vse
rvic
e sp
lit a
ir-co
nditi
onin
g sy
stem
s.
11In
stal
l/ser
vice
pac
kage
d ai
r-co
nditi
onin
g sy
stem
s.ID
A-
6
B T
CO
PY A
VA
ILA
BL
E_
120
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
GIO
°0°' i cl
.
71 z;'. a
' i CL
71 t 0"
>.
0, i:f
g? 0 i°
2 V., w o.
0 71 a a
2 '4, ,; o.
0 , z, a
I .3. .-
m CD 0. E'
3
0
12In
stal
l/ser
vice
eva
pora
tive
cool
ers.
13T
roub
lesh
oot a
ir-co
nditi
onin
g sy
stem
s.
14T
roub
lesh
oot e
vapo
rativ
e co
oler
s.
15T
roub
lesh
oot c
onde
nsat
e dr
ain
syst
ems.
16T
roub
lesh
oot a
ir fil
trat
ion
syst
ems.
fb
Res
iden
tial a
nd L
ight
Com
mer
cial
Hea
t Pum
ps
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f vap
or c
ompr
essi
on h
eat p
ump
cycl
es.
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f sup
plem
enta
ry h
eat.
11.
3U
nder
stan
d an
d ap
ply
the
rela
tions
hip
of o
utdo
or a
mbi
ent t
empe
ratu
re to
hea
ting
capa
city
.
4U
nder
stan
d an
d ap
ply
the
elec
tric
al c
ircui
try
of a
ir to
air,
wat
er to
air,
and
gro
und
to a
ir he
at p
umps
.
5U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
pera
tion
of d
efro
st c
ontr
ols
in h
eat p
ump
syst
ems;
for
exam
ple,
ele
ctro
nic
dem
and
defr
ost,
pres
sure
, tim
e/te
mpe
ratu
re, t
ime,
etc
.
6U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f the
bal
ance
poi
nt o
f hea
t pum
ps.
7In
terp
ret t
he b
alan
ce c
hart
and
plo
t the
bal
ance
poi
nt o
f a h
eat p
ump.
8D
esig
n ai
r di
strib
utio
n an
d de
liver
y sy
stem
s.
9F
abric
ate
and
insu
late
air
dist
ribut
ion
syst
ems.
10In
stal
l/ser
vice
vap
or c
ompr
essi
on h
eat p
ump
syst
ems.
11T
roub
lesh
oot v
apor
com
pres
sion
hea
t pum
p sy
stem
s.
Com
mer
cial
Con
ditio
ned
Air
Sys
tem
s
1U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f coo
ling
tow
ers.
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f pne
umat
ic c
ontr
ol d
evic
es; f
or e
xam
ple,
ther
mos
tats
, pne
umat
ic a
ctua
tors
, pne
umat
icsw
itche
s, p
neum
atic
rel
ays,
etc
.
214:
0
A-
7
Est
CO
PY M
AM
AIS
,L
E2
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
°O (-71 rt. 0.
7! a
C3 In -a- a
0 -7!
-c' a
?.::
!') a
-9 S0
° f',,' m 0.
0 = -9 ;3- a
G30
ig m a
= 21 z,7; a
I co =
K co 0. . E 3
r o
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f pum
ps a
nd c
ircul
ator
s.00
004
Und
erst
and
and
appl
y th
e pr
inci
ples
of l
ow a
nd h
igh
pres
sure
gas
-fire
d bo
ilers
.11
,
5U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f low
and
hig
h pr
essu
re o
il-fir
ed b
oile
rs
6U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ste
am c
onde
nser
s an
d tr
aps.
7U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f wat
er-c
oole
d co
nden
sers
and
acc
esso
ries.
8U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f des
icca
nt c
oolin
g an
d de
hum
idifi
catio
n sy
stem
s.00
009
Und
erst
and
and
appl
y th
e pr
inci
ples
of l
iqui
d ch
iller
s an
d ac
cess
orie
s.
10U
nder
stan
d an
d ap
ply
the
prin
cipl
es a
nd o
f air
dist
ribut
ion
and
deliv
ery
syst
ems.
11U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f wat
er d
istr
ibut
ion
syst
ems.
12U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f com
mer
cial
con
ditio
ned-
air
cont
rol s
yste
ms.
13In
stal
Vm
aint
ain/
serv
ice
pneu
mat
ic c
ontr
ol d
evic
es.
0000
14In
stal
l/ser
vice
pum
ps a
nd c
ircul
ator
s.
15In
stal
Val
ign
shaf
ts in
fans
, pum
ps, a
nd o
pen-
type
com
pres
sors
.00
0016
Inst
alV
serv
ice
cool
ing
tow
ers
and
acce
ssor
ies.
IP
17In
stal
l/ser
vice
wat
er-c
oole
d co
nden
sers
and
acc
esso
ries.
18In
stal
Vse
rvic
e liq
uid
chill
ers
and
acce
ssor
ies.
19In
stal
Vse
rvic
e ai
r di
strib
utio
n sy
stem
s an
d ac
cess
orie
s.41
0
20In
stal
Vse
rvic
e w
ater
dis
trib
utio
n sy
stem
s an
d ac
cess
orie
s.
21In
stal
Vse
rvic
e co
mm
erci
al c
ondi
tione
d-ai
r co
ntro
l sys
tem
s00
4022
Per
form
sch
edul
ed m
onito
ring/
test
ing
proc
edur
es o
f com
mer
cial
con
ditio
ned-
air
syst
ems.
12,3
A-
8
BE
ST C
OPY
AV
AIL
AB
LE
124
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
g,)
TI
,,,. D.
0 71 3 °-
i,,)
71 T,,,
.
D.
0 -7! 3 a
l'.'' s:
Q 2 E.
A
g ',, W a
o -9 3 °-
,q,) ' Tif a
o 21 3 a
x cai .-
c CD 0: E 3
I- 0 8
23P
erfo
rm p
reve
ntat
ive
insp
ectio
n an
d m
aint
enan
ce p
roce
dure
s of
com
mer
cial
con
ditio
ned-
air
syst
ems.
0000
24P
erfo
rm c
omm
erci
al c
ondi
tione
d-ai
r sy
stem
sta
rt-u
p pr
oced
ures
.
25P
erfo
rm c
omm
erci
al c
ondi
tione
d-ai
r sy
stem
shu
t-do
wn
proc
edur
es.
26T
roub
lesh
oot p
neum
atic
con
trol
dev
ices
.00
0027
Tro
uble
shoo
t pum
ps a
nd c
ircul
ator
s.
28T
roub
lesh
oot c
oolin
g to
wer
s an
d ac
cess
orie
s.
29T
roub
lesh
oot w
ater
-coo
led
cond
ense
rs a
nd a
cces
sorie
s.
30T
roub
lesh
oot l
iqui
d ch
iller
s an
d ac
cess
orie
s.
31T
roub
lesh
oot a
ir di
strib
utio
n sy
stem
s an
d ac
cess
orie
s.
32T
roub
lesh
oot w
ater
dis
trib
utio
n sy
stem
s an
d ac
cess
orie
s.
33T
roub
lesh
oot c
omm
erci
al c
ondi
tione
d-ai
r co
ntro
l sys
tem
s.00
Com
mer
cial
Ref
riger
atio
n
1
Und
erst
and
and
appl
y th
e pr
inci
ples
of h
igh,
med
ium
, low
, and
ultr
a-lo
w te
mpe
ratu
re c
omm
erci
al r
efrig
erat
ion
and
thei
rap
plic
atio
ns.
2U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f mec
hani
cal r
efrig
erat
ion
syst
ems
in c
omm
erci
al r
efrig
erat
ion;
for
exam
ple,
wal
k-in
cool
ers,
wal
k-in
free
zers
, rea
ch-in
cas
es, m
ultip
le e
vapo
rato
r sy
stem
s, p
acka
ged
refr
iger
atio
n sy
stem
s, e
tc.
3U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f ele
ctric
and
hot
gas
def
rost
sys
tem
s in
com
mer
cial
ref
riger
atio
n sy
stem
s.
4U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f fla
ke a
nd c
ube
ice
mak
ers.
5U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f wat
er c
oole
rs.
6U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f spe
cific
ref
riger
atio
n sy
stem
com
pone
nts
used
in c
omm
erci
al r
efrig
erat
ion;
for
exam
ple,
low
am
bien
t con
trol
s, e
vapo
rato
r pr
essu
re r
egul
ator
s, c
rank
case
pre
ssur
e re
gula
tors
, etc
.
7U
nder
stan
d an
d ap
ply
the
prin
cipl
es o
f loa
d ca
lcul
atio
n an
d pi
ping
des
igns
in c
omm
erci
al r
efrig
erat
ion
syst
ems.
8C
alcu
late
the
load
, des
ign
the
pipi
ng s
yste
m, a
nd d
esig
n th
e co
ntro
l sys
tem
of a
com
mer
cial
ref
riger
atio
n sy
stem
.
125
A-
9
T C
OPY
AV
AIL
AB
LE
?6,
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hei
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m. A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
i,,)
N 71 ct
0 - §.
2 . 1, Fri.
0 71 a>
..=
.
* . 9,
C? 0 c a
06)
0°0
w -9 a
7, i"
43 -9 i_7
,
I73-'
I - co =
K a O.C
I- 0 ., <
9In
stal
Vse
rvic
e co
mm
erci
al r
efrig
erat
ion
syst
ems.
00
010
Inst
all/s
ervi
ce ic
e m
aker
s.0
011
Inst
all/s
ervi
ce w
ater
coo
lers
.0
12T
roub
lesh
oot h
igh
tem
pera
ture
com
mer
cial
ref
riger
atio
n sy
stem
s.0
13T
roub
lesh
oot m
ediu
m te
mpe
ratu
re c
omm
erci
al r
efrig
erat
ion
syst
ems.
014
Tro
uble
shoo
t low
tem
pera
ture
com
mer
cial
ref
riger
atio
n sy
stem
s.0
15T
roub
lesh
oot u
ltra-
low
tem
pera
ture
com
mer
cial
ref
riger
atio
n sy
stem
s.0
16T
roub
lesh
oot i
ce m
aker
s.0
17T
roub
lesh
oot w
ater
coo
lers
.0
Wor
kpla
ce B
ehav
iors
Wor
k E
thic
s an
d B
ehav
ior
1U
nder
stan
d an
d ad
here
to th
e co
nduc
t rul
es o
f the
com
pany
.00
0000
0000
0000
02
Ass
ume
resp
onsi
bilit
y fo
r de
cisi
ons
and
actio
ns.
0000
0000
0000
000
03
Dem
onst
rate
a w
illin
gnes
s to
lear
n.00
0000
0000
000
000
4D
emon
stra
te a
bilit
y to
wor
k as
a te
am m
embe
r.00
0000
0000
000
000
5D
ispl
ay in
itiat
ive.
0000
0000
0000
000
6P
erfo
rm q
ualit
y w
ork.
0000
0000
0000
000
07
Exh
ibit
prid
e in
qua
lity
wor
k.00
0000
0000
00
00
08
Iden
tify
esta
blis
hed
rule
s, r
egul
atio
ns, a
nd p
olic
ies.
0000
0000
0000
000
9A
dher
e to
fair
pric
ing
stan
dard
s.00
0000
0000
00
000
127
A-
10B
ES
T C
OP
YA
VA
ILA
BLE
12S
App
endi
xSk
ills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
`-7, g 0.
O -9 a
P -n iT;
0 7 FD a
l'!* "' 0
g? 2 D
> ..
---
s
0 m =, o.
0 -9 a a
0 m =. a
0 -9 a a
ca. ,
m 0 0 . 3
, 0 *
10M
aint
ain
wor
k ho
urs
and
sche
dule
.00
0000
0000
0000
011
Pra
ctic
e co
st e
ffect
iven
ess.
0000
0000
0000
12P
ract
ice
time
man
agem
ent.
0000
0000
.000
Wor
k E
nviro
nmen
t(s)
1U
nder
stan
d an
d ap
ply
envi
ronm
enta
l and
occ
upat
iona
l saf
ety
prac
tices
and
reg
ulat
ions
.04
1.00
0004
11.0
000
000
2Id
entif
y ha
zard
ous
subs
tanc
es in
the
wor
k ar
ea.
0000
0000
0000
000
3M
aint
ain
wor
k ar
ea.
0000
0000
0000
4R
espo
nd to
em
erge
ncie
s.00
0000
0000
0000
0W
orkp
lace
Com
mun
icat
ions
1C
omm
unic
ate
oral
ly w
ith o
ther
s.
2F
ollo
w o
ral a
nd w
ritte
n di
rect
ions
.00
0000
0010
000
000
3D
ispl
ay li
sten
ing
skill
s.00
0000
0500
0000
04
Inte
rpre
t bod
y la
ngua
ge.
0000
000
0000
000
5P
repa
re w
ritte
n co
mm
unic
atio
n.00
0000
0000
0000
06
Util
ize
tele
phon
e et
ique
tte.
0000
0000
0000
000
Pro
fess
iona
lism
1A
ccep
t res
pons
ibili
ties
of a
n em
ploy
ee.
Sala
a....
....
see
2A
sses
s bu
sine
ss im
age,
pro
duct
s an
d/or
ser
vice
s.00
0000
0000
0000
03
Ass
ume
resp
onsi
bilit
y fo
r aw
aren
ess
of te
chno
logi
cal a
nd r
egul
ator
y ch
ange
s.00
0000
0000
0000
04
Con
vers
e in
wor
k-re
late
d te
rmin
olog
y.11
1111
1111
1111
1101
1111
0001
1111
1111
000
012
9A
- 11
CO
PY A
MIA
BL
E13
0
App
endi
xS
kills
Mat
rix
NA
TIO
NA
L S
KIL
L S
TA
ND
AR
DS
HE
AT
ING
, AIR
CO
ND
ITIO
NIN
G, A
ND
RE
FR
IGE
RA
TIO
N T
EC
HN
ICIA
NS
Ski
lls
Res
iden
tial a
nd L
ight
Com
mer
cial
Com
mer
cial
Hea
ting
A/C
Hea
ting
A/C
Ref
riger
atio
n
War
m A
irH
ydro
nic
Hea
t Pum
pW
arm
Air
Hyd
roni
c
° ° "9 a..
0 -71 E.
° ° "9 il ..
0 -71 E
>.
* a 3 ii:
-9 0 c &0
° °' ° 'I a...
0 = -n E
° g -9 "ii a
0 = -n E
I .3. .-
C CD 0. s.
r- o 8
5D
ispl
ay a
pos
itive
atti
tude
.00
41.0
.1.0
4.04
.1.1
.6
Fol
low
com
pany
dre
ss a
nd a
ppea
ranc
e st
anda
rds.
7P
artic
ipat
e in
em
ploy
men
t orie
ntat
ion.
4.01
.8
Tre
at p
eopl
e w
ith r
espe
ct.
9U
nder
stan
d an
d ap
ply
the
resp
onsi
bilit
ies
of a
n em
ploy
er/m
anag
emen
t.00
010
Dis
play
saf
e an
d co
urte
ous
driv
ing
prac
tices
.00
0P
robl
em S
olvi
ng
1E
mpl
oy r
easo
ning
ski
lls.
1.1.
11.4
11.4
.11.
001.
04.
2E
valu
ate
resu
lts o
f im
plem
ente
d op
tion.
0000
11.0
0041
1000
0040
3E
valu
ate
optio
ns.
1100
41
4Id
entif
y so
lutio
ns to
a p
robl
em a
nd th
eir
impa
ct.
0055
5541
10.1
1.05
Oa.
5Id
entif
y th
e pr
oble
m.
SID
OID
OS
IDID
OS
SID
IDS
.6
Org
aniz
e w
orkl
oads
.40
4.01
1555
5555
550
07
Sel
ect a
nd im
plem
ent a
sol
utio
n to
a p
robl
em.
4.54
.54.
554.
4.41
.55
500
8S
et p
riorit
ies.
0050
0010
4.55
555
0
132
A-
12
BE
ST C
OPY
AV
AIL
AB
LE
V-T
EC
SS
OU
TH
ER
N A
SS
OC
IAT
ION
OF
CO
LLE
GE
S A
ND
SC
HO
OLS
1866
SO
UT
HE
RN
LA
NE
DE
CA
TU
R, G
EO
RG
IA 3
0033
-409
7
(404
) 67
9-45
01E
XT
.54
3(8
00)
248-
7701
EX
T.
543
7
(9/92)
U.S. DEPARTMENT OF EDUCATIONOffice of Educational Research and Improvement (OERI)
Educational Resources Information Center (ERIC)
NOTICE
REPRODUCTION BASIS
I ERICI
This document is covered by a signed "Reproduction Release(Blanket)" form (on file within the ERIC system), encompassing allor classes of documents from its source organization and, therefore,does not require a "Specific Document" Release form.
This document is Federally-funded, or carries its own permission toreproduce, or is otherwise in the public domain and, therefore, maybe reproduced by ERIC without a signed Reproduction Releaseform (either "Specific Document" or "Blanket").