INSTALLATION INSTRUCTIONS SINGLE PACKAGE …E).… · Belower Motor Œ HP/RPM 1e/3 Variabl 1e/2...

SINGLE PACKAGEAIR CONDITIONERS

MODELSP1124A3 P1224A2P1130A2 P1230A1P1136A2 P1236A1P1142A3 P1242A1P1148A2 P1248A2P1060A1

INSTALLATION INSTRUCTIONS

Manual : 2100-353ESupersedes: 2100-353DFile: Volume II Tab 10Date: 04-15-04

Bard Manufacturing CompanyBryan, Ohio 43506

Since 1914 . . . Moving ahead just as planned

© Copyright 2004

CONTENTS

Getting Other Informations and Publications

General InstructionsImportant ................................................................ 2Shipping Damage .................................................... 2General ................................................................ 2Field Installed Heater Packages (Optional) ............. 2

InstallationLocation ................................................................ 9Typical Installations ................................................. 9Condensate Drain Trap ......................................... 14Air Filters .............................................................. 14Wiring � Main Power ............................................. 15Wiring � 24V Low Voltage Control Circuit ............. 15Transformer Taps ................................................... 15Thermostats ........................................................... 15

Start Up and OperationThree Phase Scroll Compressor Start UpInformation ............................................................. 17Sequence of Operation .......................................... 17Start Up Notes ....................................................... 17Indoor Blower Motor .............................................. 17Compressor Control Module .................................. 17Adjustments ........................................................... 18

Service and TroubleshootingService Hints ......................................................... 19Pressure Service Ports .......................................... 19Refrigerant Charge ................................................ 19Fan Blade Settings ................................................ 19Suction and Discharge Tube Brazing .................... 20Pressure Table ....................................................... 14Wiring Diagrams ............................................... 15-16

Troubleshooting ECM Blower Motors ............. 23-24

FiguresFigure 1 Unit Dimensions ...................................... 8Figure 2 Slab Mounting at Ground Level ............ 10Figure 3 Airflow and Service Access

Clearances ............................................ 10Figure 4 Roof Top Application .............................. 11Figure 5 Elevated Mounting Platforms ................. 11Figure 6 Prefabricated Rood Curb

Specifications ........................................ 12Figure 7 Field Fabricated Curbing ....................... 13Figure 8 Condensate Drain Trap ......................... 14Figure 9 Low Voltage Wiring ............................... 16Figure 10 Fan Blade Setting ................................. 19Figure 11 Brazing Diagram ................................... 20

TablesTable 1 Rated CFM & ESP .................................. 2Table 2 Electrical Specifications .......................... 3Table 2A Electrical Specifications .......................... 4Table 2B Electrical Spedifications .......................... 5Table 3 Option Field Installed Heater Packages .. 6Table 4 Electric Heater Table ............................... 8Table 5 Unit Dimensions ...................................... 5Table 6 Roof Curb Details .................................. 13Table 7 Dimension for Figure 7 .......................... 13Table 8 Filter Requirements & Sizes ................. 14Table 9 Thermostat Wire Size ........................... 15Table 10 Wall Thermostat and Subbase

Combinations ........................................ 15Table 11 Suction Line Temperatures ................... 19Table 12 Fan Blade Setting Dimensions.............. 19Table 13 Indoor Blower Performance .................. 20Table 14 Pressure Table ...................................... 21Table 14A Pressure Table ...................................... 22

Manual 2100-353Page 1

Getting Other Information and Publications

These publications can help you install the airconditioner or heat pump. You can usually find these atyour local library or purchase them directly from thepublisher. Be sure to consult current edition of eachstandard.

National Electrical Code ...................... ANSI/NFPA 70

Standard for the Installation .............. ANSI/NFPA 90Aof Air Conditioning andVentilating Systems

Standard for Warm Air ...................... ANSI/NFPA 90BHeating and AirConditioning Systems

Load Calculation for ............................ ACCA Manual J

Residential Winter andSummer Air Conditioning

Duct Design for Residential .............. ACCA Manual DWinter and Summer AirConditioning and Equipment Selection

FOR MORE INFORMATION, CONTACTTHESE PUBLISHERS:

ACCA Air Conditioning Contractors of America1712 New Hampshire Ave. N.W.Washington, DC 20009Telephone: (202) 483-9370Fax: (202) 234-4721

ANSI American National Standards Institute11 West Street, 13th FloorNew York, NY 10036Telephone: (212) 642-4900Fax: (212) 302-1286

ASHRAE American Society of Heating, Refrigerating,and Air Conditioning Engineers, Inc.1791 Tullie Circle, N.E.Atlanta, GA 30329-2305Telephone: (404) 636-8400Fax: (404) 321-5478

NFPA National Fire Protection AssociationBatterymarch ParkP.O. Box 9101Quincy, MA 02269-9901Telephone: (800) 344-3555Fax: (617) 984-7057


GENERAL INSTRUCTIONS

IMPORTANTThe equipment covered in this manual is to be installedby trained, experienced service and installationtechnicians. All duct work, supply and return ducts,must be properly sized for the design air flowrequirement of the equipment. ACCA is an excellentguide to proper sizing. All duct work or portions thereofnot in the conditioned space should be properlyinsulated in order to both conserve energy and preventcondensation or moisture damage.

SHIPPING DAMAGEUpon receipt of equipment, the carton should bechecked for external signs of shipping damage. Ifdamage is found, the receiving party must contact thelast carrier immediately, preferably in writing,requesting inspection by the carrier�s agent.

GENERALThe refrigerant system is completely assembled andcharged. All internal wiring is complete.

The unit is designed for use with or without duct work.Flanges are provided for attaching the supply and returnducts.

These instructions explain the recommended method toinstall the air cooled self-contained unit and theelectrical wiring connections to the unit.

These instructions and any instructions packaged withany separate equipment required to make up the entireheat pump system should be carefully read beforebeginning the installation. Note particularly �StartingProcedure� and any tags and/or labels attached to theequipment.

While these instructions are intended as a generalrecommended guide, they do not supersede any nationaland/or local codes in any way. Authorities havingjurisdiction should be consulted before the installation ismade.

FIELD INSTALLED HEATER PACKAGES(OPTIONAL)These packaged air conditions are manufactured withoutsupplementary electric heaters. Supplementary heatersare available for simple, fast field installation.

A separate power circuit is required for thesupplementary heaters.

IMPORTANT: Refer to Table 1 when designing ductwork for maximum available static pressure with heaterinstalled.

Refer to data shown in Table 3 and 4 for properapplication information on all available heatercombinations and what units they can be used with. Italso shows the applicable circuit ampacities, fuse size,and wire size for each heater combination.

TABLE 1RATED CFM AND EXTERNAL STATIC

PRESSURE (ESP)

NOTE: ECM motors provide rated CFM up to 0.50 ESP

ledoM.oN

detaRMFC

dednemmoceRegnaRwolfriA

detaRPSE

.xaMPSE

3A4211P 008 088-027 02.0 05.0

2A4221P 008 1etoN 01.0 05.0

2A0311P 5211 5721-0201 02.0 05.0

1A0321P 0001 1etoN 51.0 05.0

2A6311P 0521 0041-0511 03.0 05.0

1A6321P 0011 1etoN 51.0 05.0

3A2411P 0041 0451-0621 02.0 04.0

1A2421P 0041 1etoN 02.0 05.0

2A8411P 0551 0071-0041 04.0 05.0

2A8421P 0551 1etoN 02.0 05.0

1A0601P 0071 0781-0351 02.0 05.0


TABLE 2ELECTRICAL SPECIFICATIONS

ledoM 3A4211P 2A0311P 2A6311P B-1A6311P C-1A6311P 3A2411P

�gnitaRcirtcelEAtiucriC�zH06 1-06-802/032 1-06-802/032 1-06-802/032 3-06-802/032 3-06-064 1-06-802/032

egnaRegatloVgnitarepO 352-791 352-791 352-791 352-781 605-414 352-791

yticapmAtiucriCmuminiM 61 12 52 81 21 92

CSCB 3.01 6.31 61 11 6 5.81

*eziSeriWdleiF 21 01 8 01 41 8

eziSeriWdnuorG 21 01 01 01 41 01

**.xaM�esuFyaleD 52 03 04 52 51 54

802/032�spmAtinuatoT 3.21/8.11 9.61/4.51 7.81/1.71 9.21/3.21 3.7 2.42/1.32

AtiucriC�rosserpmoC

epyTrosserpmoC llorcS llorcS llorcS llorcS llorcS llorcS

stloV 802/032 802/032 802/032 802/032 064 802/032

spmAdaoLdetaR 0.9/5.8 6.31/1.21 4.51/8.31 6.9/0.9 9.4 5.81/0.71

spmAretoRkcoL 45/45 5.27/5.27 88/88 77/77 93 401/401

resnednoCdnarotoMnaF

MPR/PH�rotoMnaF 0901-5/1 5701-5/1 5701-5/1 5701-5/1 5701-5/1 5701-2/1

spmArotoMnaF 2.1 6.1 6.1 6.1 0.1 5.2

MFC/.aiD�naF 2491/"02 0042/"02 0012/"02 0002/"02 0002/"02 0582/"42

rotaropavEdnarotoM

MPR/PH�rotoMrewolB 5701-3/1 5701-5/1 5701-5/1 5701-5/1 5701-5/1 5701-2/1

spmA�rotoMrewolB 1.2 6.2 6.2 6.2 4.1 7.3

PSE&gnilooCMFC 008 @ 02.0 5211 @ 02.0 0521 @ 03.0 5721 @ 03.0 5721 @ 03.0 0041 @ 02.0

).zo22R(egrahC 25 46 39 39 39 98

)sdnuop(thgieWgnippihS 003 013 033 033 033 093


TABLE 2AELECTRICAL SPECIFICATIONS

ledoM 2A8411P B-2A8411P C-2A8411P 1A0601P B-1A0601P C-1A0601P

�gnitaRcirtcelEAtiucriC�zH06 1-06-802/032 3-06-802/032 3-06-064 1-06-802/032 3-06-064 3-06-064

egnaRegatloVgnitarepO 352-791 352-781 605-414 352-791 352-781 605-414

yticapmAtiucriCmuminiM 23 52 21 34 92 41

CSCB 5.02 7.41 7 92 21 9

*eziSeriWdleiF 8 01 21 8 8 21

eziSeriWdnuorG 01 01 21 01 01 21

**.xaM�esuFyaleD 05 53 51 06 54 02

802/032�spmAtinuatoT 2.62/2.42 1.91/9.71 8.8 7.33/9.03 7.32/7.12 2.11


epyTrosserpmoC llorcS llorcS llorcS llorcS llorcS llorcS

stloV 802/032 802/032 064 802/032 802/032 064

spmAdaoLdetaR 5.02/5.81 4.31/2.21 6 2.82/2.52 81/61 4.8

spmAretoRkcoL 731/731 19/19 05 961/961 321/321 26


MPR/PH�rotoMnaF 058-3/1 058-3/1 058-3/1 058-3/1 058-3/1 058-3/1

spmArotoMnaF 5.2 5.2 2.1 5.2 5.2 2.1

MFC/.aiD�naF 0013/"42 0013/"42 0013/"42 0013/"42 0013/"42 0013/"42

rotaropavEdnarotoM

MPR/PH�rotoMrewolB 5701-2/1 5701-2/1 5701-2/1 5701-2/1 5701-2/1 5701-2/1

spmA�rotoMrewolB 7.3 7.3 8.1 7.3 7.3 8.1

PSE&gnilooCMFC 0551 @ 04.0 0551 @ 04.0 0551 @ 04.0 0071 @ 02.0 0071 @ 02.0 0071 @ 02.0

).zo22R(egrahC 021 021 021

)sdnuop(thgieWgnippihS 034 034 034 524 524 524


TABLE 2BELECTRICAL SPECIFICATIONS

ledoM 2A4221P 1A0321P 1A6321P B-1A6321P 1A2421P 2A8421P B-2A8421P

�gnitaRcirtcelEAtiucriC�zH06 1-06-802/032 1-06-802/032 1-06-802/032 3-06-802/032 1-06-802/032 1-06-802/032 3-06-802/032

egnaRegatloVgnitarepO 352-791 352-791 352-791 352-781 352-791 352-791 352-781

yticapmAtiucriCmuminiM 51 12 52 91 03 43 32

CSCB 01 3. 5.31 2.61 9.01 81 12 8.21

*eziSeriWdleiF 21 01 8 01 8 6 8

eziSeriWdnuorG 21 01 01 01 01 01 01

**.xaM�esuFyaleD 02 03 04 52 54 05 53

802/032�spmAtinuatoT 4.21/7.11 1.71/7.51 1.12/2.91 8.51/9.41 1.42/2.32 72/5.52 7.91/4.91


epyTrosserpmoC llorcS llorcS llorcS llorcS llorcS llorcS llorcS

stloV 802/032 802/032 802/032 802/032 802/032 802/032 802/032

spmAdaoLdetaR 0.9/5.8 8.21/4.11 2.61/3.41 9.01/01 3.71/4.61 02/5.81 7.21/4.21

spmAretoRkcoL 45/45 67/67 5.09/5.09 77/77 401/401 731/731 19/19


MPR/PH�rotoMnaF -5/1 901 0 5701-5/1 5701-5/1 5701-5/1 528-3/1 528-3/1 528-3/1

spmArotoMnaF 2.1 6.1 6.1 6.1 5.2 5.2 5.2

MFC/.aiD�naF 5791/"02 0042/"02 0012/"02 0012/"02 0092/"42 0532/"42 0532/"42

rotaropavEdnarotoM

MPR/PH�rotoMrewolB elbairaV3/1 elbairaV2/1 elbairaV2/1 elbairaV2/1 elbairaV2/1 elbairaV2/1 elbairaV2/1

spmA�rotoMrewolB 2.2 7.2 3.3 3.3 3.4 5.4 5.4

PSE&gnilooCMFC 008 @ 01.0 0001 @ 51.0 0011 @ 51.0 51.0@0011 0041 @ 02.0 0551 @ 02.0 02.0@0551

).zo22R(egrahC 35 88 201 201 811 151 151

)sdnuop(thgieWgnippihS 003 033 043 043 014 034 034

Manual

2100-353P

age6

S = Standard Application � Heater volts and phase same as basic unit A = Alternate Application � Heater volts and phase different frombasic unit.N = Not Approved

TABLE 3OPTIONAL FIELD INSTALLED HEATER PACKAGESONLY TO BE USED WITH THE MODELS INDICATED

egakcaPretaeHledoM

&stloVesahP 3A4211P 2A4211P 2A0311P 1A0321P 2A6321P C-1A6311P C-1A6311P 1A6321P B-1A6321P

nmulocsihTknalbtfelsi.yllanoitnetni

50A-BP3HE 1-802/042 S AN S AN S A A AN AN

80A-BP3HE 1-802/042 S AN S AN S A A AN AN

01A-BP3HE 1-802/042 S AN S S S A A S AN

51A-BP3HE 1-802/042 AN AN S AN S A A AN AN

50A-CP3HE 1-802/042 AN S AN S AN AN AN S AN

01A-CP3HE 1-802/042 AN S AN AN AN AN AN AN AN

51A-CP3HE 1-802/042 AN AN AN S AN AN AN S AN

90B-BP3HE 3-802/042 A AN A AN A S A AN S

51B-BP3HE 3-802/042 AN AN A AN A S A AN S

90C-BPHE 3-084 AN AN A AN A A S AN AN

51C-BPHE 3-084 AN AN A AN A A S AN AN

egakcaPretaeHledoM

&stloVesahP 3A2411P 1A2421P 2A8411P B-2A8411P C-2A8411P 2A8421P B-2A8421P 1A0601P B-1A0601P C-1A0601P

50A-BP5HE 1-802/042 S S S A A S A S A A



02A-BP5HE 1-802/042 S AN S A A AN AN S A A

90B-BP5HE 3-802/042 A A A S A A S A S A

51B-BP5HE 3-802/042 A A A S A A S A S A

81B-BP5HE 3-802/042 A AN A S A AN AN A S A

90C-CP5HE 3-084 A AN A A S AN AN A A S



Manual

2100-353P

age7

TABLE 4OPTIONAL FIELD INSTALLED ELECTRIC HEATER TABLE

.gkPretaeH.oNledoM

stloVtinUsesahP

&WK.rtHyticapaCstloV042@

&WK.rtHyticapaCstloV802@

V802/042spmA.rtH

retaeHlanretnIsesuF

BtiucriC

dleiF.oNstiucriC

.niMtiucriCyticapmA

1revO.xaMtnerruCnoitcetorP

2dleiFrewoPgniriW

3dnuorGeriWeziSWK HUTB WK HUTB

50A-BP3HE80A-BP3HE01A-BP3HE51A-BP3HE80A-CP3HE01A-CP3HE51A-CP3HE

1-802/0421-802/0421-802/0421-802/0421-802/0421-802/0421-802/042

58015150151

001,71003,72001,43002,15001,71001,43002,15

57.300.605.752.1157.305.752.11

008,21005,02000,62004,83008,21000,62004,83

1.81/8.028.82/3.332.63/6.141.45/5.261.81/8.022.63/6.141.45/5.26

06/03

06/03

1111111

32/6263/2464/3586/9732/6264/3586/97

52/0304/5405/0607/0852/0305/0607/08

01/0101/018/64/401/018/64/4

010101801018

50A-BP5HE01A-BP5HE51A-BP5HE02A-BP5HE

1-802/0421-802/0421-802/0421-802/042

5015102

001,71001,43002,15002,86

57.305.752.1100.51

008,21000,62004,83002,15

1.81/8.022.63/6.141.45/5.261.27/2.38

06/0306/06

1111

32/6264/3586/9719/401

52/0305/0607/08001/011

01/018/64/43/2

010186

90B-BP3HE51B-BP3HE

3-802/0423-802/042

951

007,03002,15

57.652.11

000,32004,83

7.81/7.122.13/2.63

11

42/8293/64

52/0304/05

01/018/8

0101

90B-BP5HE51B-BP5HE81B-BP5HE

3-802/0423-802/0423-802/042

95181

007,03002,15004,16

57.652.1105.31

000,32004,83001,64

7.81/7.122.13/2.635.73/4.34

111

42/8293/6474/55

52/0304/0505/06

01/018/88/6

010101

90C-BP3HE51C-BP3HE

3-0843-084

951

007,03002,15

62.877.31

002,82000,74

8.010.81

11

5132

5152

4101

4101

90C-BP5HE51C-BP5HE81C-BP5HE

3-0843-0843-084

95181

007,03002,15004,16

62.877.3135.61

002,82000,74004,65

8.010.817.12

111

513282

515203

410101

410101

Time Delay fuses of �HACR� type circuit breakers must be used for 60 and smaller sizes. Standard fuses or circuit breakers are suitable forsizes 70 and larger. 480V circuit breakers are not �HACR� type.

Based on wire suitable for 75 degree C. Other wiring materials must be rated for marked �Minimum Circuit Ampacity� or greater.

Based upon Table 250-95 of N.E.C. 1993. See electric data for basic heat pump for Circuit A wiring specification requirements.

2

3

1

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sizedfuses and conductor wires in accordance with the National Electrical Code and all existing local codes.


FIGURE 1DIMENSIONS OF UNITS

MIS-1305

TABLE 5DIMENSIONS OF UNITS

ledoM.oN

)sehcnI(snoisnemiDtenibaClanimoN

)sehcnI(gninepOtcuD

H

egrahcsiD riAnruteR

A B C J K L M D E F G

3A4211P2A4221P2A0311P1A0321P2A6311P1A6321P

4/1-42 61/3-84 8/1-83 8/1-62 8/1-2 61/9 61/9 33 6 33 41 8/7

3A2411P1A2421P2A8411P2A8421P1A0601P

4/1-13 05 24 62 3 4/3-2 61/9-7 83 01 83 61 8/3-1


INSTALLATION

LOCATION

GENERAL

The unit must be located outside, or in a well ventilatedarea. It must not be in the space being heated or cooled.A sound absorbing material should be considered if theunit is to be installed in such a position or location thatmight cause transmission of sound or vibration to theliving area or adjacent buildings.

SLAB MOUNTING

In areas where winter temperatures DO NOT go below32° F for periods over twelve hours, the unit may beslab mounted at grade level. When installing unit atgrade level, install on a concrete slab at least four inchesabove finished grade level. Slab should have a slopetolerance away from the building structure of at lease 1/4 inch per foot, while being level from side to side.Place slab in a location where runoff water from higherground will not collect around unit. SeeFigure 2.

A minimum of 18 inches should be provided betweenthe coil inlet and any building surfaces. Provide at leastfour feet between coil outlet and any building wall,fences or other vertical structures. Provide a minimumof three feet clearance on the service access side of theunit. See Figure 3.

ROOF MOUNTING

When a unit is installed in areas where low ambienttemperatures or strong winter winds exist, it should beplaced for prevailing winter winds are not in direct linewith the outdoor coil. If this is not possible, a windbarrier should be constructed. Place barrier 24 inchesfrom the coil inlet side of the unit and in the direction ofprevailing winds. Size barrier at least the same heightand width as the unit. This may be necessary on groundlevel installations, also. See Figure 4.

WINTER INSTALLATION BELOW 32°F

In areas where winter conditions go below 32°F forextended periods, the unit must be elevated above themounting surface to prevent snowfall or iceaccumulation from interfering with the operation of theunit. A minimum of twelve inch elevation isrecommended, while greater elevation may be requiredfor areas of high snow accumulation. Poured concrete,steel framework, brick, cement block, etc., can beutilized to construct a suitable raised mounting platform.See Figure 5.

TYPICAL INSTALLATIONS1. ROOF MOUNTED � The unit is mounted on a

sturdy base on the roof of the building. Return air tothe unit is brought through a single return grille(grilles with built-in filters are best since they enableeasy access for filter changing). Return air ducts areattached to the lower section of the front panel.Supply air is brought from the unit to attic duct workor to a furred down hall. Supply air duct is attachedto the top of the front panel.

CAUTION: All outdoor duct work must bethoroughly insulated and weatherproofed. Allattic duct work must be thoroughly insulated.Two inch thick insulation with suitable vaporbarrier is recommended for both outdoor andattic runs.

In roof top installation, as in all installations, the airconditioner must be level from side to side.However, the unit should have a pitch along thelength to assure complete external drainage ofprecipitation and of defrost condensate. See Figures6 and 7, and Tables 6 and 7.

2. CRAWL SPACE � Duct work installed in crawlspace must be well insulated and provided with avapor barrier. In addition, the crawl space must bethoroughly ventilated and provided with a goodvapor barrier as a ground cover. It is most desirableto install the unit will be outdoors rather than insidethe crawl space, so that it will be readily accessiblefor service.

3. SLAB MOUNTED AT GROUND LEVEL � Thistype installation is ideal for homes with a slab floorconstruction where a roof mounted unit is notdesired. The supply and return duct work can be runthrough a furred closet space.

4. THROUGH THE WALL � This type installationrequires a suitable framework to be fabricatedcapable of withstanding the unit weight. Normallythe unit will be insulated so as to minimize supplyand return duct work.


FIGURE 2SLAB MOUNTING AT GROUND LEVEL

(Above 32°F Outside Temperature)

MIS-1184

FIGURE 3AIRFLOW AND SERVICE ACCESS CLEARANCES

MIS-1185


FIGURE 5ELEVATED MOUNTING PLATFORMS

MIS-1183

FIGURE 4ROOF TOP APPLICATION

(May also be required for ground level installations)

MIS-1176

Manual

2100-353P

age12

FIGURE 6PREFABRICATED ROOF CURB SPECIFICATIONS

HEAVY GAUGE GALVANIZED WITH WOOD NAILING STRIP, WELDED/LEAKPROOFONCE PIECE CONSTRUCTION � READY TO INSTALL

MIS-1177C


TABLE 6ROOF CURB DETAILS

(Refer to Figure 7)

ledoMtinU

fooRdooHledoM

fooRbruCledoM

sliateDbruCfooRA B C D E F G H I J K L

3A4211P2A4221P2A0311P1A0321P2A6311P1A6321P

63-EHR 300-2409 573.08 52.04 52.73 573.83 573.53 24 52.42 521.91 881.84 57.41 521.83 52.83

3A2411P1A2421P2A8411P2A8421P1A0601P

06-EHR 400-2409 573.28 521.44 521.14 573.83 573.53 44 52.13 521.91 05 57.41 24 52.83

1 A SEPARATE METAL FLASHING SHOULD BEINSTALLED AROUND WOOD CURBING. CAULKAND SEAL ALL JOINTS AND WEATHERPROOF.

FIGURE 7FIELD FABRICATED CURBING

MIS-1178A

TABLE 7DIMENSION FOR X IN FIG. 7

ledoMtinU dooHfooRledoM

noisnemiDX

3A4211P2A4221P2A0311P1A0321P2A6311P1A6321P

63-EHR 14

3A2411P1A2421P2A8411P2A8421P1A0601P

06EHR 8/7-44


FIGURE 8CONDENSATE DRAIN TRAP

MIS-136

5. OTHER INSTALLATIONS � Many otherinstallations are possible with the packaged airconditioner. No matter what the installation, alwaysconsider the following facts:

A. Insure that the discharge air is not obstructed inany way so as to cause operation difficulties.

B. The indoor coil drain pan is equipped with acoupling that must be piped through acondensate drain trap to a suitable drain.

C. Always mount the unit is such a position that itmay be easily reached for servicing andmaintenance.

D. Insure that the unit is clear so that proper airflow over the outdoor coil will be maintained.

If this unit is operated in cooling below a 65° outdoorambient temperature, the installation of low ambientcontrols (CMA-6) to unit is required.

CONDENSATE DRAIN TRAPIt is very important to provide a trap in the condensatedrain line to allow a positive liquid seal in the line andassure correct drainage from the coil condensate pan.

Install condensate drain trap shown in Figure 8. Usedrain connection size or larger. Do not operate unitwithout trap. Unit must be level or slightly inclinedtoward drain. With a trap installed on a unit located inan unconditioned area, water in the trap may freeze. Itis recommended that the trap material be of a type thatwill allow for expansion of water when it freezes.

AIR FILTERSAir filters for the return air side of the system are notprovided as part of these models, and must be fieldsupplied and installed as part of the final installation.

Prior thought should be given to return air location andplacement of the air filter(s). The air filter(s) must be ofadequate size and readily accessible to the operator ofthe equipment. Filters must be adequate in size andproperly maintained for proper operation. If this is notdone, excessive energy use, poor performance, andmultiple service problems will result. It is impossible tooversize air filters. Generous sizing will result incleaner air and coils as well as lower operating costs andextend the time between required changes. Table 8shows minimum filter areas and recommended filtersizes. Actual filter sizes can vary with the installationdue to single or multiple returns utilizing a filter/grillearrangement or being placed immediately ahead of theindoor coil face in the return air duct.

NOTE: If roof hood accessory is to be used,information on air filters may be found underthat heading in this manual. Air filters aresupplied as part of that package.

TABLE 8FILTER REQUIREMENTS & SIZES

.oNledoM aerAretliFmuminiM dednemmoceReziS

3A4211P2A4221P2A0311P1A0321P2A6311P1A6321P

sehcnIerauqS264)teeFerauqS12.3( 1x8/5-03x51

3A2411P1A2421P2A8411P2A8421P1A0601P

sehcnIerauqS806)teeFerauqS26.4( 1x02x61)2(


TABLE 9THERMOSTAT WIRE SIZE

AVremrofsnarT ALF eguaGeriW

mumixaMecnatsiDteeFnI

55 3.2

0281614121

5406001061052

TRANSFORMER TAPS230/208V, 1 phase and 3 phase equipment employ dualprimary voltage transformers. All equipment leaves thefactory wired on 240V tap. For 208V operation,reconnect from 240V to 208V tap. The acceptableoperating voltage range for the 240 and 208V taps are:

TAP RANGE 240 253 � 216 208 220 � 187

NOTE: The voltage should be measured at the fieldpower connection point in the unit and whilethe unit is operating at full load (maximumamperage operating condition).

WIRING � MAIN POWERRefer to the unit rating plate for wire sizing informationand maximum fuse size. Each outdoor unit is markedwith a �Minimum Circuit Ampacity�. This means thatthe field wiring used must be sized to carry that amountof current. If field installed heaters are added to thebasic unit, a second separate power supply circuit willbe required. The heater rating plate located adjacent tothe basic unit rating plate will show the appropriatecircuit ampacity fuse size, etc. (Also see �ElectricalSpecifications� on pages 3, 4 and 5.) All models aresuitable for connection with copper wire only. Theseinstructions must be adhered to. Refer to the NationalElectrical Code for complete current carrying capacitydata on the various insulation grades of wiring material.

The electrical specifications list fuse and wire sizes(75°F copper) for all models including the mostcommonly used heater sizes.

The unit rating plate lists a �Maximum Time DelayFuse� or �HACR� type circuit breaker that is to be usedwith the equipment. The correct size must be used forproper circuit protection and also to assure that therewill be no nuisance tripping due to the momentary highstarting current of the compressor.

WIRING � 24V LOW VOLTAGE CONTROLCIRCUITFive (5) wires should be run from thermostat subbase tothe 24V terminal board in the unit. A five conductor, 18gauge copper, color-coded thermostat cable isrecommended. The connection points are shown inFigure 9.

THERMOSTATSSee specific wiring information for the different models, heater KWs, and voltages on unit and heating wiringdiagrams..

IMPORTANT NOTE: Only the thermostat and subbase combinations as shown above will work with thisequipment. The thermostat and subbase MUST be matched, and correct operation can be assured only byproper selection and application of these parts.

TABLE 10WALL THERMOSTAT AND SUBBASE COMBINATIONS

tatsomrehT esabbuS serutaeFtnanimoderP

220-30481113F78T

300-30480221A935Q

yrucreM,loocegats1,taehegats1otua-no:naFlooc-ffo-taeH:metsyS

140-30489941C4308T �� yrucreM,loocegats1,taehegats1

otua-no:naFlooc-ffo-taeH:metsyS

940-3048083-39F1 �� ,loocegats2,taehegats2

elbammargorPcinortcelE

340-3048002MC �� yrucreM,loocegats1,taehegats1

noitcApanSotua-no:naFlooc-ffo-taeH:metsyS

840-30483131C0048T ��

yrucreM,loocegats1,taehegats1otua-no:naFlooc-ffo-taeH:metsyS

elbammargorP-noNcinortcelE

910-30480671C478T

210-40480671C476Q

yrucreM,loocegats1,taehegats1otua-no:naFlooc-otua-taeH:metsyS


FIGURE 9LOW VOLTAGE WIRING

MIS-1180


START UP AND OPERATION

THREE PHASE SCROLL COMPRESSORSTART UP INFORMATIONScroll compressors, like several other types ofcompressors, will only compress in one rotationaldirection. Direction of rotation is not an issue withsingle phase compressors since they will always startand run in the proper direction.

However, three phase compressors will rotate in eitherdirection depending upon phasing of the power. Sincethere is a 50-50 chance of connecting power in such away as to cause rotation in the reverse direction,verification of proper rotation must be made.Verification of proper rotation direction is made byobserving that suction pressure drops and dischargepressure rises when the compressor is energized.Reverse rotation also results in an elevated sound levelover that with correct rotation, as well as, substantiallyreduced current draw compared to tabulated values.

Verification of proper rotation must be made at thetime the equipment is put into service. If improperrotation is corrected at this time there will be nonegative impact on the durability of the compressor.However, reverse operation for over one hour may havea negative impact on the bearing due to oil pump out.

NOTE: If compressor is allowed to run in reverserotation for several minutes the compressor�sinternal protector will trip.

All three phase ZR*3 compressors are wired identicallyinternally. As a result, once the correct phasing isdetermined for a specific system or installation,connecting properly phased power leads to the sameFusite terminals should maintain proper rotationdirection.

The direction of rotation of the motor may be changedby reversing any two line connections to the unit.

SEQUENCE OF OPERATIONCOOLING � Circuit R-Y makes at thermostat pullingin compressor contactor starting the compressor andoutdoor motor. The G (indoor motor) circuit isautomatically completed on any call for coolingoperation, or can be energized by manual fan switch onsubbase for constant air circulation.

HEATING � A circuit R-W1 is completed on eachheating cycle energizing electric heat if so equipped.

START UP NOTESFor improved start up performance, wash the indoor coilwith dishwasher detergent.

INDOOR BLOWER MOTORSome models feature a variable speed (ECM) motorproviding high efficiency, low sound levels and softstart capabilities. The motor is self adjusting to providethe proper air flow rate at duct static pressures up to0.50� WC without user adjustment or wiring changes.

On command from the wall thermostat the motor willstart slowly and ramp up to full speed over a period of10- 15 seconds.

When the thermostat is satisfied the blower will operatefor approximately 1 minute, and then slow down andstop.

COMPRESSOR CONTROL MODULEThe compressor control is an anti-short cycle/lockouttimer with high and low pressure switch monitoring andalarm output.

ADJUSTABLE DELAY-ON-MAKE AND BREAKTIMEROn a call for compressor operation the delay-on-makeperiod begins which will be 10% of the delay-on-breaksetting. When the delay-on-make is complete and thehigh pressure switch (and low pressure switch ifemployed) is closed, the compressor contactor isenergized. Upon shutdown the delay-on-break timerstarts and prevents restart until the delay-on-break anddelay-on-make periods have expired.

HIGH PRESSURE SWITCH AND LOCKOUTSEQUENCE (Standard Feature)If the high pressure switch opens, the compressorcontactor will de-energize immediately. The lockouttimer will go into a soft lockout and stay in soft lockoutuntil the high pressure switch closes and the delay-on-make time has expired. If the high pressure switchopens again in this same operating cycle the unit will gointo manual lockout condition and the alarm circuit willenergize. Recycling the wall thermostat resets themanual lockout.


LOW PRESSURE SWITCH, BYPASS, ANDLOCKOUT SEQUENCENOTE: The low pressure switch is an optional control

and the bypass and lockout sequence are partof the standard compressor control module.

If the low pressure switch opens for more that 120seconds, the compressor contactor will de-energize andgo into a soft lockout. Regardless the state of the lowpressure switch, the contactor will reenergize after thedelay-on-make time delay has expired. If the lowpressure switch remains open or opens again for longerthan 120 seconds the unit will go into manual lockoutcondition and the alarm circuit will energize. Recyclingthe wall thermostat resets the manual lockout.

.ALARM OUTPUTAlarm terminal is output connection for applicationswhere alarm signal is desired. This terminal is poweredwhenever compressor is locked out due to HPC or LPCsequences as described.

NOTE: Both high and low pressure switch controls areinherently automatic reset devices. The highpressure switch and low pressure switch cutout and cut in settings are fixed by specific airconditioner or heat pump unit model. Thelockout features, both soft and manual, are afunction of the Compressor Control Module.

ADJUSTMENTS

ADJUSTABLE DELAY-ON-MAKE ANDDELAY-ON-BREAK TIMERThe potentiometer is used to select Delay-on-Break timefrom 30 seconds to 5 minutes. Delay-on-Make (DOM)timing on power-up and after power interruptions isequal to 2 minutes plus 10% of Delay-on-Break (DOB)setting:

0.5 minute (30 seconds) DOB = 123 second DOM1.0 minute (60 seconds) DOB = 126 second DOM2.0 minute (120 seconds) DOB = 132 second DOM3.0 minute (160 seconds) DOB = 138 second DOM4.0 minute (240 seconds) DOB = 144 second DOM5.0 minute (300 seconds) DOB = 150 second DOM


FAN BLADE SETTINGSShown in Figure 10 are the correct fan blade settingdimensions for proper air delivery across the outdoorcoil.

Any service work requiring removal or adjustment inthe fan and/or motor area will require that thedimensions below be checked and blade adjusted in orout on the motor shaft accordingly.

FIGURE 10FAN BLADE SETTING

SERVICE AND TROUBLESHOOTING

SERVICE HINTS1. Caution homeowner to maintain clean air filters at

all times. Also, not to needlessly close off supplyand return air registers. This reduces air flowthrough the system which shortens equipmentservice life as well as increasing operating costs.

2. Check all power fuses or circuit breakers to be surethat they are the correct rating.

3. Periodic cleaning of the outdoor coil to permit fulland unrestricted airflow circulation is essential.

PRESSURE SERVICE PORTSHigh and low pressure service ports are installed on allunits so that the system operating pressures can beobserved. Pressure tables can be found later in thismanual covering all models on cooling cycle. It isimperative to match the correct pressure table to theunit by model number.

REFRIGERANT CHARGEThe correct system R-22 charge is shown on the unitrating plate. Optimum unit performance will occurwith a refrigerant charge resulting in a suction linetemperature (6� from compressor) as shown inTable 11.

TABLE 11SUCTION LINE TEMPERATURES

The above suction line temperatures are based upon80°F dry bulb/67°F wet bulb (50% RH) temperature andrated airflow across the evaporator during cooling cycle.

ledoMdetaRwolfriA

DO°59erutarepmeT

DO°28erutarepmeT

3A4211P 008 65-45 26-06

2A4221P 008 85-55 36-16

2A0311P 5211 85-65 56-36

1A0321P 0001 85-65 56-36

2A6311P 0521 95-75 06-85

1A6321P 0011 95-75 06-85

3A2411P 0041 95-75 06-85

1A2421P 0041 95-75 06-85

2A8411P 0551 75-45 06-85

2A8421P 0551 55-35 85-65

1A0601P 0071 94-74 65-45

TABLE 12FAN BLADE SETTING DIMENSIONS

ledoM "A"noisnemiD

3A4211P "00.1

2A4221P "00.1

2A0311P "57.

1A0321P "00.1

2A6311P "00.1

1A6321P "00.1

3A2411P "57.1

1A2421P "57.1

2A8411P "57.1

2A8421P "57.1

1A0601P "57.1


SUCTION AND DISCHARGE TUBEBRAZINGCompliant Scroll compressors have copper plated steelsuction and discharge tubes. These tubes are far morerugged and less prone to leaks than copper tubes used onother compressors. Due to different thermal propertiesof steel and copper, brazing procedures may have to bechanged from those commonly used.

� To disconnect: heat joint Areas 2 and 3 slowly anduniformly until braze material softens and the tubecan be pulled out of suction fitting. (See Figure 10.)

� To connect:

� Recommended brazing materials: silfos withminimum 5% silver or silver braze material withflux.

� Reinsert tube into fitting.

� Heat tube uniformly in Area 1 moving slowly toArea 2. When joint reaches brazingtemperature, apply brazing material. (SeeFigure 11)

� Heat joint uniformly around the circumferenceto flow braze material completely around thejoint.

� Slowly move torch into Area 3 to draw brazematerial into joint. (See Figure 11.)

� Do not overheat joint.

MIS-1179

FIGURE 11BRAZING DIAGRAM

TABLE 13INDOOR BLOWER PERFOMANCE

nIPSEH2O

3A4211P 2A0311P 2A6311P 3A2411P 2A8411P 1A0601P

/yrD teW /yrD teW /yrD teW /yrD teW /yrD teW /yrD teW

0.0 /5201 069 /0531 0121 /5641 5731 /0561 5261 /0591 0291 /0581 0581

1.0 /539 078 /0031 0611 /0341 0431 /0551 5251 /0681 0381 /0081 0871

2.0 /568 008 /0421 0011 /5831 5921 /5341 0041 /0871 0571 /5271 0071

3.0 /538 077 /5711 5301 /0431 0521 /0431 0131 /0861 0661 /0661 5261

4.0 /008 537 /0211 089 /5721 5811 /0321 0121 /0851 0551 /0851 0451

5.0 /057 586 /0501 019 /0911 0011 /0211 0011 /0051 0841 /0051 5741


(Continued on Page 22 in Table 14A)

ledoMriAnruteRerutarepmeT erusserP 57 08 58 09 59 001 501 011 511

3A4211P

BD.ged57BW.ged26

ediSwoLediShgiH

07912

47022

77422

97432

08842

28852

38672

48392

58613

BD.ged08BW.ged76

ediSwoLediShgiH

57422

97522

28032

48042

68452

88562

98382

09003

19423

BD.ged58BW.ged27

ediSwoLediShgiH

18232

58332

88832

09842

29362

49472

69392

79113

89533

2A4221P

BD.ged57BW.ged26

ediSwoLediShgiH

47881

57302

77712

97332

97942

08562

18282

28992

38713

BD.ged08BW.ged76

ediSwoLediShgiH

97391

08802

28322

48932

58552

68272

78982

88703

98523

BD.ged58BW.ged27

ediSwoLediShgiH

28002

38512

58132

78742

88462

98282

09992

19813

29633

2A0311P

BD.ged57BW.ged26

ediSwoLediShgiH

37002

57912

67432

77452

97172

08882

18703

28723

38243

BD.ged08BW.ged76

ediSwoLediShgiH

57502

08522

18042

28062

48872

58592

68513

78533

88153

BD.ged58BW.ged27

ediSwoLediShgiH

48212

68332

78842

88962

09782

19503

29623

49743

59363

1A0321P

BD.ged57BW.ged26

ediSwoLediShgiH

27991

37312

47722

57342

77852

87572

97392

97013

08033

BD.ged08BW.ged76

ediSwoLediShgiH

77402

87812

97332

08942

28562

3/8282

48003

58813

68833

BD.ged58BW.ged27

ediSwoLediShgiH

08112

18622

28142

38852

58472

68292

78113

88923

98053

2A6311P

BD.ged57BW.ged26

ediSwoLediShgiH

76591

17512

37922

57942

77362

87282

97203

08713

18633

BD.ged08BW.ged76

ediSwoLediShgiH

27002

67022

87532

08552

28072

48092

58013

68523

78543

BD.ged58BW.ged27

ediSwoLediShgiH

77702

28822

48342

68462

88972

09003

19123

29633

49753

1A6321P

BD.ged57BW.ged26

ediSwoLediShgiH

17902

37522

57242

67852

87572

97392

97013

08923

18643

BD.ged08BW.ged76

ediSwoLediShgiH

67412

87132

08842

18562

38282

48003

58813

68733

78553

BD.ged58BW.ged27

ediSwoLediShgiH

97122

18932

38752

48472

68292

78113

88923

98943

09763

TABLE 14PRESSURE TABLE

COOLINGAir Temperature Entering Outdoor Coil Degrees F


TABLE 14APRESSURE TABLE

COOLING

Air Temperature Entering Outdoor Coil Degrees F

ledoMriAnruteRerutarepmeT erusserP 57 08 58 09 59 001 501 011 511

3A2411P

BD.ged57BW.ged26

ediSwoLediShgiH

07802

27322

57932

77452

87172

97882

08503

18423

28243

BD.ged08BW.ged76

ediSwoLediShgiH

57312

77922

08542

28162

48872

58592

69313

78233

88153

BD.ged58BW.ged27

ediSwoLediShgiH

18022

38732

68452

88072

0882

19503

29423

49443

59363

1A2421P

BD.ged57BW.ged26

ediSwoLediShgiH

07291

27602

47022

67632

87252

97862

08682

18403

28323

BD.ged08BW.ged76

ediSwoLediShgiH

57791

77112

97622

18242

38852

58572

68392

78213

88133

BD.ged58BW.ged27

ediSwoLediShgiH

87402

08812

28432

48052

68762

88582

98303

09323

19343

2A8411P

BD.ged57BW.ged26

ediSwoLediShgiH

37302

47812

57132

67642

87462

97872

08492

18213

28033

BD.ged08BW.ged76

ediSwoLediShgiH

87802

97222

18732

28252

38862

48582

68203

78023

88833

BD.ged58BW.ged27

ediSwoLediShgiH

38512

58032

78542

88162

78372

19592

29313

39133

49053

2A8421P

BD.ged57BW.ged26

ediSwoLediShgiH

07002

27512

37032

57742

77362

97182

97892

18713

38633

BD.ged08BW.ged76

ediSwoLediShgiH

57502

77022

87632

08352

28072

48882

58603

78523

98543

BD.ged58BW.ged27

ediSwoLediShgiH

87212

08822

18442

38262

58972

78892

88713

09633

29753

1A0601P

BD.ged57BW.ged26

ediSwoLediShgiH

56412

66032

86742

96462

07482

27992

47813

57633

67553

BD.ged08BW.ged76

ediSwoLediShgiH

96912

17632

27352

47172

67982

77703

97623

08543

28463

BD.ged58BW.ged27

ediSwoLediShgiH

47722

67442

87262

97082

18692

38813

58733

68753

88773


TROUBLESHOOTING ECM BLOWER MOTORS

CAUTIONDisconnect power from unit before removing or replacing connectors, or servicing motor. Wait atleast 5 minutes after disconnection power before opening motor.

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INSTALLATION INSTRUCTIONS SINGLE PACKAGE …E).… · Belower Motor Œ HP/RPM 1e/3 Variabl 1e/2...

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Transcript of INSTALLATION INSTRUCTIONS SINGLE PACKAGE …E).… · Belower Motor Œ HP/RPM 1e/3 Variabl 1e/2...