Control Functions And Benefits

ZMERLY & CO SARL. – Eng. Wael Zmerly - 20071Control Functions and Benefits

Control Functionsand Benefits

Eng. Wael Zmerly

26/10/2007

http://www.abbyy.com/buy



Why fit Control ?




Why fit Control ? - More Comfort

More comfort is achieved by:•Maintaining accurate system temperatures.•Ensuring quiet system operation.•Preventing excessive temperatures on heating surfaces.•Providing the right amount of heat when and where youwant it.

MoreComfort




Why fit Control ? - Energy SavingEnergy saving is achieved by:•Minimizing boiler short cycling.•Operating the boiler and the heat distribution systemefficiently.•Shutting down the system when no heat is required.•Operating the system at the lowest practical watertemperature.

EnergySaving

Heating &Hot Water

70%

Apliances20%

Lighting10%




Why fit Control ? - High Quality

High quality is achieved by:•Protecting the boiler from corrosion and thermal shock.•Preventing excessive temperatures in the heatingsystem.•Preventing corrosion and precipitate build up byexercising system components.•Minimizing cycling of equipment.•Providing high quality controls.

HighQuality




Why fit Control ? - Ease of UseEase of use is achieved by:•Providing easy and consistent wiring and installationprocedures.•Providing feasible mounting options of enclosures.•Providing automatic testing of wiring and detection ofsensor faults.•Minimizing manual settings through automaticfunctions.•Providing visual readouts of system status.

Ease ofUse




Boiler Control

On/

Off

Diff

eren

tial

Con

stan

tBoi

lerT

empe

ratu

reO

utdo

orR

eset

Outdoor Air Temperature

20

30

40

Supp

lyW

ater

Tem

pera

ture

Constant BoilerTemperature

Boi

lerD

iffer

entia

l20

30

70

90




Boiler ControlB

oile

rM

inim

umSu

pply

Soft

Star

t

Boi

lerP

ostP

urge

Time Supp

ly T

empe

ratu

re

Expansion Noises

Normal Operation

Soft Start


20

30

40

Supp

lyW

ater

Tem

pera

ture

Boiler MinumSupply




Conmfort Range

TOO COOL ZONE

TOO WARM ZONE

TOO COOL ZONE

TOO WARM ZONE

TOO COOL ZONE

TOO WARM ZONE

WastedFuel and

Discomfort

Com

fort

Ran

ge

Win

terC

omfo

rt

Con

vent

iona

lCon

trol

Inte

llige

ntC

ontr

ol




Thermostatic Radiator ValveSwimming pool

Bathroom

Work room or children’sbedroomLiving or dining rooms(Basic setting)

Hobby room, bedroom

All rooms at night(nighttime reduction)Stairway, vestibule

Basement/cellar rooms(frost protection setting)

Kitchen, corridor




Thermostatic Radiator Valve Installation

Underfloorconvector

Built-incabinet

IncorrectThe thermo-static headwith built-insensor maynot bemountedvertically.

CorrectThe remote sen-sor enables anunhinderedreading of theair temperaturein the room.

CorrectCirculation ofair around thethermostatichead is nothindered.

IncorrectThe thermosta-tic head withbuilt-in sensormay not becovered bycurtains.

Supply Return

3/4”

100

50 30




Room Thermostat

PROG

AUTO

DAY COPY

Intelli therm C55

+

+AUTO

The

rmos

tati

nsta

llatio

n

Roo

mT

herm

osta

t

Prog

ram

mab

leTh

erm

osta

t

Wir

eles

sThe

rmos

tat

M S - +21 C°




Room ControllerR

oom

Sens

or

Roo

mC

ontr

olle

r

Room Sensor Controller

The

rmos

tatA

pplic

atio

n

The

rmos

tatA

pplic

atio

n




Outdoor Reset

ConstantRoom Temperature

OutdoorTemperature Drop

HeatLoss Increase

Heat Out

Heat in Heat in

Heat Out

Heat in=

Hea

tLos

ses

Outdoor Temperature °C

Boi

ler T

empe

ratu

re°C

-5 0 5 10 15 20-10-15-20 25

4050607080

30 Outdoor Control

Conventional Control

Ther

mos

tatS

ettin

g°C

2322

1920

2425

1817

21

TimeTole

ranc

es

Vari

able

Boi

ler

Tem

pera

ture

100

Con

stan

tSpe

ed




Outdoor Reset

Supp

lyTe

mpe

ratu

re

Hea

ting

Cur

ve

Cha

ract

eriz

edH

eatin

gC

urve

Boi

lerT

empe

ratu

re

20

30

70

90

20

30

70

90

20

30

70

90

20

30

70

90




Outdoor Reset


20

15 10 05 0025 20

30

40

50

60

70

80

90

Supp

ly W

ater

Tem

pera

ture

oC

IndoorSensor

MoreHeat

LessHeat

Diff

eren

tialF

eedb

ack


20

15 10 05 0025 20

30

40

50

60

70

80

90

Supp

ly W

ater

Tem

pera

ture

oCNig

htSe

tbac

k


Supp

lyW

ater

Tem

pera

ture

IndoorSensor

Indoor > Setting

Indoor < Setting

Indo

orFe

edba

ck

Requiredday timetemperature

Overnighttemperature

Normalswitch-on time

Delayed switch-on timewith Optimum Start

Occupancy/wake-up time

POTENTIALSAVING

Tem

pera

ture

Delay PeriodO

ptim

umSt

art




Outdoor Reset




Domestic Hot Water Control

Yearly Heating Operationfor a typical family house

(4 persons)

50000 Litersof Hot Water

8000 SystemOperating Hours

1000 BurnerRun Hours

5000 on/offcycles

12

3

0 4

bar




Domestic Hot Water ControlD

HW

Con

trol

DH

WC

ircu

latio

n

DH

WPr

iori

ty

Sola

rWat

erH

eatin

g




DH

WO

ptim

izat

ion

DH

WSe

tbac

kDomestic Hot Water Control

Opt

imum

Star

t

DH

WB

oile

rR

eset

Ove

rrid

e


20

30

40

Supp

lyW

ater

Tem

pera

ture




Domestic Hot Water Areas of Risk

Time to produce a 2nd & 3degree burn to adult Skin:

rd

70°C About 1/2 seconds65°C About 1-1/2 seconds

55°C About 30 seconds52°C About 2 minutes50°C More than 5 minutes40°C No hazard

Scal

ding

Leg

ione

lla

0 10 20 30 40 50 60 70

Inst

antd

eath

ofba

cter

ia

Dea

thof

90%

ofba

cter

iain

2m

inut

es

Dea

thof

90%

ofba

cter

iain

2ho

urs

Opt

imum

tem

pera

ture

forg

row

thof

bact

eria

Surv

ivin

gba

cter

iain

activ

e

BATHS 43 C°

WASH 40 CBASINS

° ROWS OFBASINS

°

KITCHEN 48 CSINKS°

SHOWERS 40 C°

BIDETS 37 C°

DH

WSa

feTe

mpe

ratu

re



Control Functions And Benefits

Technology

Transcript of Control Functions And Benefits