Bard PH12241 Installation Instructions Manual

Brand: Bard

Model: PH12241

Category: Heat pumps

Type: Installation Instructions Manual

This manual is also suitable for

Manual 2100-354F

Page 1 of 32

SINGLE PACKAGE

HEAT PUMPS

Models:

PH11242 PH12241

PH11301 PH1230

PH11361 PH1236

PH11422 PH1242

PH10481 PH12481

PH1060

INSTALLATION INSTRUCTIONS

Manual : 2100-354F

Supersedes: 2100-354E

File: Volume II Tab 11

Date: 12-20-06

Bard Manufacturing Company, Inc.

Bryan, Ohio 43506

Since 1914 . . . Moving ahead, just as planned.

Manual 2100-354F

Page 2 of 32

CONTENTS

Getting Other Informations and Publications

General Instructions

Important ................................................................ 3

Shipping Damage .................................................... 4

General ................................................................ 4

Field-Installed Heater Packages (Optional) ............. 4

Installation

Location ............................................................... 11

Typical Installations ....................................... 11 & 16

Condensate Drain Trap ......................................... 16

Air Filters .............................................................. 16

Wiring – Main Power ............................................. 17

Wiring – 24V Low Voltage Control Circuit ............. 17

Thermostats ........................................................... 18

Thermostat Indicator Lamps .................................. 19

Emergency Heat Position ...................................... 19

Transformer Taps ................................................... 19

Compressor Cutoff Thermostat and Outdoor

Thermostat Wiring ................................................. 19

Start Up and Operation

Three Phase Scroll Compressor Start Up

Information ............................................................. 21

Sequence of Operation .......................................... 21

Defrost Cycle ......................................................... 22

Troubleshooting

Solid State Heat Pump Control

Troubleshooting Procedure ................................... 23

Troubleshooting Guide .......................................... 23

Checking Temperature Sensor Check Out ............ 24

Temperature vs. Resistance of

Temperature Sensor Chart .................................... 24

Service

Service Hints ......................................................... 25

Pressure Service Ports .......................................... 25

Refrigerant Charge ................................................ 25

Fan Blade Settings ................................................ 25

Suction and Discharge Tube Brazing .................... 26

Troubleshooting GE ECM

™

Blower Motors ... 27 & 28

Pressure Tables ................................................ 29-32

Figures

Figure 1 Unit Dimensional Drawing ..................... 10

Figure 2 Slab Mounting at Ground Level ............ 12

Figure 3 Airflow and Service Access

Clearances ............................................ 12

Figure 4 Roof Top Application ............................. 13

Figure 5 Elevated Mounting Platforms ................ 13

Figure 6 Prefabricated Rood Curb

Specifications ........................................ 14

Figure 7 Field Fabricated Curbing ....................... 15

Figure 8 Condensate Drain Trap ......................... 16

Figure 9 Low Voltage Wiring ............................... 17

Figure 10 Unit 24V Terminal Board (5–10 KW) ..... 19

Figure 11 Unit 24V Terminal Board (15–20 KW) ... 20

Figure 12 Heat Pump Control Board ..................... 22

Figure 13 Fan Blade Setting ................................. 25

Figure 14 Brazing Diagram ................................... 26

Tables

Table 1 Rated CFM and ESP .............................. 4

Table 2 Electrical Data ......................................... 5

Table 2A Electrical Data ......................................... 6

Table 2B Electrical Data ......................................... 7

Table 3 Optional Field Installed Heater

Packages ................................................ 8

Table 4 Electric Heater Table ............................... 9

Table 5 Dimensions of Unit ................................ 10

Table 6 Roof Curb Dimensions .......................... 14

Table 7 Dimension “X” for Field Fab Curbing .... 15

Table 8 Filters Required & Size ......................... 16

Table 9 Heat Pump Thermostats ....................... 18

Table 10 Thermostat Wire Size ........................... 18

Table 11 Compressor Cutoff Thermostat

Wiring (5 - 10 KW) ............................... 20

Table 12 Compressor Cutoff Thermostat

Wiring (15 - 20 KW) ............................. 20

Table 13 Refrigerant Charge ............................... 25

Table 14 Fan Blade Setting Dimensions .............. 25

Table 15 Indoor Blower Performance .................. 26

Table 16 Pressure Table - Cooling ....................... 29

Table 17 Pressure Table - Heating ...................... 29

Table 18 Pressure Table - Cooling ....................... 30

Table 19 Pressure Table - Heating ...................... 30

Table 20 Pressure Table - Cooling ....................... 31

Table 21 Pressure Table - Heating ...................... 31

Table 22 Pressure Table - Cooling ....................... 32

Table 23 Pressure Table - Heating ...................... 32

Manual 2100-354F

Page 3 of 32

Getting Other Information and Publications

These publications can help you install the air conditioner

or heat pump. You can usually find these at your local

library or purchase them directly from the publisher. Be

sure to consult current edition of each standard.

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

Standard for the Installation ................... ANSI/NFPA 90A

of Air Conditioning and Ventilating Systems

Standard for Warm Air .......................... ANSI/NFPA 90B

Heating and Air Conditioning Systems

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

Residential Winter and Summer Air Conditioning

Duct Design for Residential ................... ACCA Manual D

Winter and Summer Air Conditioning and Equipment

Selection

FOR MORE INFORMATION, CONTACT

THESE PUBLISHERS:

ACCA Air Conditioning Contractors of America

1712 New Hampshire Ave. N.W.

Washington, DC 20009

Telephone: (202) 483-9370

Fax: (202) 234-4721

ANSI American National Standards Institute

11 West Street, 13th Floor

New York, NY 10036

Telephone: (212) 642-4900

Fax: (212) 302-1286

ASHRAE American Society of Heating Refrigerating,

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.

Atlanta, GA 30329-2305

Telephone: (404) 636-8400

Fax: (404) 321-5478

NFPA National Fire Protection Association

Batterymarch Park

P.O. Box 9101

Quincy, MA 02269-9901

Telephone: (800) 344-3555

Fax: (617) 984-7057

Manual 2100-354F

Page 4 of 32

GENERAL INSTRUCTIONS

IMPORTANT

The equipment covered in this manual is to be installed by

trained, experienced service and installation technicians.

Any heat pump is more critical of proper operating charge

and an adequate duct system than a straight air conditioning

unit. All duct work, supply and return ducts, must be

properly sized for the design air flow requirement of the

equipment. ACCA is an excellent guide to proper sizing.

All duct work or portions thereof not in the conditioned

space should be properly insulated in order to both

conserve energy and prevent condensation or moisture

damage.

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be checked

for external signs of shipping damage. If damage is found,

the receiving party must contact the last carrier

immediately, preferably in writing, requesting inspection

by the carrier’s agent.

GENERAL

The refrigerant system is completely assembled and

charged. All internal wiring is complete.

The unit is designed for use with or without duct work.

Flanges are provided for attaching the supply and return

ducts.

These instructions explain the recommended method to

install the air cooled self-contained unit and the electrical

wiring connections to the unit.

These instructions and any instructions packaged with any

separate equipment required to make up the entire heat

pump system should be carefully read before beginning the

installation. Note particularly “Starting Procedure” and any

tags and/or labels attached to the equipment.

While these instructions are intended as a general

recommended guide, they do not supersede any national

and/or local codes in any way. Authorities having

jurisdiction should be consulted before the installation is

made.

FIELD INSTALLED HEATER PACKAGES

(OPTIONAL)

These packaged heat pumps are manufactured without

supplementary electric heaters. Supplementary heaters are

available for simple, fast field installation.

A separate power circuit is required for the supplementary

heaters.

IMPORTANT: Refer to Table 1 when designing duct work

for maximum available static pressure with heater installed.

Refer to electrical data shown in Tables 3 and 4 for proper

application information on all available heater

combinations and what units they can be used with. It also

shows the applicable circuit ampacities, fuse size, and wire

size for each heater combination.

TABLE 1

RATED CFM AND EXTERNAL STATIC PRESSURE (ESP)

NOTE: Motor will adjust to deliver rated airflow.

ledoM

detaR

MFC

dednemmoceR

egnaRwolfriA

detaR

PSE

mumixaM

PSE

24211HP008088-08602.005.0

14221HP008

1etoN

01.005.0

10311HP00010011-57703.004.0

0321HP0001

1etoN

51.005.0

16311HP00010121-57702.004.0

6321HP0001

1etoN

51.005.0

22411HP00410451-062102.053.0

2421HP0041

1etoN

51.005.0

18401HP05510071-004104.005.0

18421HP0551

1etoN

02.005.0

0601HP00710781-035102.005.0

Manual 2100-354F

Page 5 of 32

* 75 degree C copper wire

** Maximum time delay fuse of HACR type circuit breaker

TABLE 2

ELECTRICAL DATA

ledoM24211HP10311HP16311HPB-16311HPC-16311HP22411HP

gnitaRcirtcelE

AtkC-zH06

1-06-802/0321-06-802/0321-06-802/0323-06-802/0323-06-0641-06-802/032

egnaRegatoVgnitarepO352-791352-791352-791352-781605-414352-791

yticapmAtiucriCmuminiM711252812123

CSCB115.3181116

5.81

*eziSeriWdleiF0101801418

eziSeriWdnuorG010101014101

**.xaM-esuFyaleD520304525105

802-302-spmAtinUlatoT9.41/9.312.71/7.517.02/9.818.31/2.319.62.42/8.22

AtiucriC-rosserpmoC

epyTrosserpmoCllorcSllorcSllorcSllorcSllorcSllorcS

stloV802/032802/032802/032802/032064802/032

spmAdaoLdetaR11/0131/5.115.61/7.416.9/0.97.45.81/1.71

spmArotoRkcoL45/455.27/5.2788/8877/7793401/401

resnednoCdnarotoMnaF

MPR/PH-rotoMnaF0901-5/15701-5/15701-5/15701-5/15701-5/1528-3/1

spmArotoMnaF2.16.16.16.18.05.2

MFC/aiDnaF0561/"020002/"020002/"020002/"020002/"020592/"42

rotaropavEdnarotoM

MPR/PH-rotoMrewolB5701-3/15701-3/15701-3/15701-3/15701-3/15701-2/1

spmA-rotoMrewolB1.26.26.26.24.17.3

PSE&gnilooCMFC02.0@00803.0@001102.0@001102.0@001102.0@001102.0@0041

).zo22-R(egrahC8839686868121

)sdnuop(thgieWgnippihS563563563563563534

Manual 2100-354F

Page 6 of 32

* 75 degree C copper wire

** Maximum time delay fuse of HACR type circuit breaker

TABLE 2A

ELECTRICAL DATA

ledoM18401HPB-18401HPC-18401HP0601HPB-0601HPC-0601HP

gnitaRcirtcelE

AtkC-zH06

1-06-802/0323-06-802/0323-06-0641-06-802/0323-06-802/0323-06-064

egnaRegatoVgnitarepO352-791352-781605-414352-791352-781605-414

yticapmAtiucriCmuminiM435221349241

CSCB5.127.411.792819

*eziSeriWdleiF8

8218821

eziSeriWdnuorG010101010121

**.xaM-esuFyaleD055351065402

802-302-spmAtinUlatoT2.12/2.527.91/3.819

5.23/3.038.22/3.1211

AtiucriC-rosserpmoC

epyTrosserpmoCllorcSllorcSllorcSllorcSllorcSllorcS

stloV802/032802/032064802/032802/032064

spmAdaoLdetaR5.12/5.910.41/6.212.68.62/6.421.71/6.512.8

spmArotoRkcoL731/73119/1905841/841731/73126

resnednoCdnarotoMnaF

MPR/PH-rotoMnaF058-3/1058-3/1058-3/1058-3/1058-3/1058-3/1

spmArotoMnaF5.25.22.15.25.22.1

MFC/aiDnaF0003/"420003/"420003/"420003/"420003/"420003/"42

rotaropavEdnarotoM

MPR/PH-rotoMrewolB5701-2/15701-2/15701-2/15701-2/15701-2/15701-2/1

spmA-rotoMrewolB7.37.38.17.37.38.1

PSE&gnilooCMFC0551

04.00551

04.00071

02.00071

02.0

).zo22-R(egrahC521521521761761761

)sdnuop(thgieWgnippihS054054054054054054

Manual 2100-354F

Page 7 of 32

* 75 degree C copper wire

** Maximum time delay fuse of HACR type circuit breaker

TABLE 2B

ELECTRICAL DATA

ledoM14221HP0321HP6321HPB-6321HP2421HP18421HPB-18421HP

gnitaRcirtcelE

AtkC-zH06

1-06-802/0321-06-802/0321-06-802/0323-06-802/0321-06-802/0321-06-802/0323-06-802/032

egnaRegatoVgnitarepO352-791352-791352-791352-781352-791352-791352-781

yticapmAtiucriCmuminiM7112629103334.52

CSCB5.015.315.619.01815.027.41

*eziSeriWdleiF21010121018

eziSeriWdnuorG01010101010101

**.xaM-esuFyaleD52030452540553

802-302-spmAtinUlatoT9.31/9.211.71/6.512.12/4.916.51/7.415.42/5.325.72/5.523.02/0.91

AtiucriC-rosserpmoC

epyTrosserpmoCllorcSllorcSllorcSllorcSllorcSllorcSllorcS

stloV802/032802/032802/032802/032802/032802/032802/032

spmAdaoLdetaR5.01/5.90.31/5.115.61/7.419.01/017.71/7.615.02/5.813.31/0.21

spmArotoRkcoL45/455.27/5.2788/8877/77401/401731/73119/19

resnednoCdnarotoMnaF

MPR/PH-rotoMnaF0901-5/15701-5/15701-5/15701-5/1528-3/1528-3/1528-3/1

spmArotoMnaF2.14.14.14.15.25.25.2

MFC/aiDnaF0561/"020002/"020002/"020002/"020003/"420003/"420003/"42

rotaropavEdnarotoM

MPR/PH-rotoMrewolBelbairaV3/1elbairaV2/1elbairaV2/1elbairaV2/1elbairaV4/3elbairaV4/3elbairaV4/3

spmA-rotoMrewolB1.27.23.33.33.45.45.4

PSE&gnilooCMFC01.0@00851.0@000151.0@000151.0@000102.0@004102.0@055102.0@0551

).zo22-R(egrahC1999121121331321321

)sdnuop(thgieWgnippihS023533543543024044044

Manual 2100-354F

Page 8 of 32

Max. KW that can operate with Heat Pump on.

Max. KW that can operate with Heat Pump on is 10 KW. 15 KW will operate during

emergency heat.

Max. KW that can operate with Heat Pump on is 9KW. 15 KW will operate during

emergency heat

S=Standard application – heater voltage and phase same as basic unit.

A=Alternate application – heater voltage and phase different from basic unit.

NA=Not approved.

TABLE 3

OPTIONAL FIELD INSTALLED HEATER PACKAGES

ONLY TO BE USED WITH THE HEAT PUMP MODELS INDICATED

retaeH

egakcaP

ledoM

dnastloV

esahP24211HP14221HP10311HP0321HP16311HPB-16311HPC-16311HP6321HPB-6321HP

nmulocsihT

tfelneebsah

knalb

yllanoitnetni

50A-BP3HE1-802/042S

ANSAN SAA ANAN

80A-BP3HE1-802/042SANSAN SAA ANAN

01A-BP3HE1-802/042ANANS1 SS1 A 1 A 1 SAN

51A-BP3HE1-802/042ANANS

AN SAA ANAN

50A-CP3HE1-802/042ANSANSANANANSAN

01A-CP3HE1-802/042ANSANANANANANANAN

51A-CP3HE1-802/042ANANANS2 ANANANS2 AN

90B-BP3HE3-802/042ANANA1 ANA1 S 1 A 1 ANS

51B-BP3HE3-802/042ANANA

AN ASA ANS3

90C-BP3HE3-084ANANA1 ANA1 A 1 S 1 ANAN

51C-BP3HE3-084ANANAAN AAS ANAN

retaeH

egakcaP

ledoM

dnastloV

esahP22411HP2421HP18401HPB-18401HPC-18401HP18421HPB-18421HP0601HPB-0601HPC-0601HP

50A-BP5HE1-802/042

SSSAAS ANSAA

01A-BP5HE1-802/042S1 SS1 A 1 A 1 SANS1 A 1 A 1

51A-BP5HE1-802/042S

S2 SAAS2 ANSAA

02A-BP5HE1-802/042ANAN SAA ANANSAA

90B-BP5HE3-802/042ANANA1 S 1 A 1 ANSA1 S 1 A 1

51B-BP5HE3-802/042ANAN

ASA ANS3 AS A

81B-BP5HE3-802/042ANAN ASA ANANASA

90C-CP5HE3-084ANANA1 A 1 S 1 ANANA1 A 1 S 1

81C-CP5HE3-084ANAN AAS ANANAAS

Manual 2100-354F

Page 9 of 32

Time delay fuses of HACR type circuit breakers must be used for 60 and smaller sizes. Standard fuses or circuit breakers are suitable for sizes 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.

NOTE: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in

accordance with the national Electrical Code and all existing local codes.

TABLE 4

OPTIONAL FIELD INSTALLED ELECTRIC HEATER TABLE

.gkPretaeH

.oNledoM

stloVtinU

sesahP&

&WKretaeH

@yticapaC

stloV042

&WKretaeH

@yticapaC

stloV802

V802/042

retaeH

spmA

retaeH

lanretnI

esuF

BtiucriC

WKHUTBWKHUTB

.oN

dleiF

stiucriC

.niM

tiucriC

yticapmA

revO.xaM

tnerruC

noitcetorP

dleiF

rewoP

gniriW

dnuorG

eziSeriW

50A-BP3HE

80A-BP3HE

01A-BP3HE

51A-BP3HE

80A-CP3HE

01A-CP3HE

51A-CP3HE

1-802/042

001,71

003,72

001,43

002,15

001,71

001,4

002,15

57.3

00.6

05.7

52.11

57.3

05.7

52.11

008,21

005,02

000,62

004,83

008,21

000,62

004,83

1.81/8.02

8.82/3.33

2.63/6.14

1.45/5.26

1.81/8.02

2.63/6.14

1.45/5.26

06/03

32/62

63/24

64/35

86/97

32/62

84/35

86/97

52/03

04/54

05/

07/08

52/03

05/06

07/08

01/01

8/6

4/4

01/01

8/6

4/4

50A-BP5HE

01A-BP5HE

51A-BP5HE

02A-BP5HE

1-80

2/042

1-802/042

001,71

001,43

002,15

002,86

57.3

05.7

52.11

00.51

008,21

000,62

004,83

2,15

1.81/8.02

2.63/6.14

1.45/5.26

1.27/2.38

06/03

06/06

32/62

64/35

86/97

19/401

52/03

05/06

07/08

001/011

01/01

8/6

4/4

3/2

90B-BP3HE

51B-BP3HE

3-802/042

007,03

002,15

57.6

52.11

000,32

004,83

7.81/7.12

2.13/2.63

42/82

93/64

52/03

04/05

01/01

8/8

90B-BP5HE

51B-BP5HE

81B-BP5HE

3-802/042

007,03

002,15

004,16

57.3

52.11

05.31

000,32

004,83

001,64

7.81/7.12

2.13/2.63

5.73/4.34

42/82

93/64

74/55

52/03

04/05

05/

01/01

8/8

8/6

90C-BP3HE

51C-BP3HE

3-084

007,03

002,15

62.8

77.31

002,82

000,74

8.01

0.81

90C-BP5HE

51C-BP5HE

81C-BP5HE

3-084

007,03

002,15

004,16

62.8

77.31

35.61

002,82

000,74

4,65

8.01

0.81

7.12

Manual 2100-354F

Page 10 of 32

FIGURE 1

UNIT DIMENSIONAL DRAWING

TABLE 5

DIMENSIONS OF UNIT

ledoM

.oN

)sehcnI(snoisnemiDtenibaClanimoN

)sehcnI(gninepOtcuD

egrahcsiDriAnruteR

ABCJKLMDEFG

4211HP

4221HP

0311HP

0321HP

6311HP

6321HP

4/1-4261/3-848/1-838/1-628/1-261/961/933633418/7

2411HP

2421HP

8411HP

8421HP

0601HP

4/1-130524623

4/3-261/9-7830183618/3-1

Manual 2100-354F

Page 11 of 32

INSTALLATION

LOCATION

GENERAL

The unit must be located outside, or in a well ventilated

area. It must not be in the space being heated or cooled. A

sound absorbing material should be considered if the unit is

to be installed in such a position or location that might

cause transmission of sound or vibration to the living area

or adjacent buildings.

SLAB MOUNTING

In areas where winter temperatures DO NOT go below

32°F for periods over twelve hours, the unit may be slab

mounted at grade level. When installing unit at grade level,

install on a concrete slab at least four inches above finished

grade level. Slab should have a slope tolerance away from

the building structure of at lease ¼ inch per foot, while

being level from side to side. This will prevent ice buildup

under the unit during defrost cycles. Place slab in a

location where runoff water from higher ground will not

collect around unit. See Figure 2.

A minimum of 18 inches should be provided between the

coil inlet and any building surfaces. Provide at least four

feet between coil outlet and any building wall, fences or

other vertical structures. Provide a minimum of three feet

clearance on the service access side of the unit. See

Figure 3.

ROOF MOUNTING

When a unit is installed in areas where low ambient

temperatures or strong winter winds exist, it should be

placed so prevailing winter winds are not in direct line with

the heat pump coil. If this is not possible, a wind barrier

should be constructed. Place barrier 24 inches from the

coil inlet side of the unit and in the direction of prevailing

winds. Size barrier at least the same height and width as

the unit. This may be necessary on ground level

installations, also. See Figure 4.

WINTER INSTALLATION BELOW 32°F

In areas where winter conditions go below 32°F for

extended periods, the unit must be elevated above the

mounting surface to prevent snowfall or defrost ice

accumulation from interfering with the operation of the

unit. A minimum of twelve inches elevation is

recommended, while greater elevation may be required for

areas of high snow accumulation. Poured concrete, steel

framework, brick, cement block, etc., can be utilized to

construct a suitable raised mounting platform. See

Figure 5.

TYPICAL INSTALLATIONS

ROOF MOUNTED

– The unit is mounted on a sturdy

base on the roof of the building. Return air to the unit

is brought through a single return grille (grilles with

built-in filters are best since they enable easy access for

filter changing). Return air ducts are attached to the

lower section of the front panel. Supply air is brought

from the unit to attic duct work or to a furred down

hall. Supply air duct is attached to the top of the front

panel.

CAUTION: All outdoor duct work must be thoroughly

insulated and weatherproofed. All attic duct work

must be thoroughly insulated. 2-inch thick

insulation with suitable vapor barrier is

recommended for both outdoor and attic runs.

In roof top installation, as in all installations, the heat

pump must be level from side-to-side. However, the

unit should have a pitch along the length to assure

complete external drainage of precipitation and of

defrost condensate. See Figures 6 and 7, and Tables 6

and 7.

CRAWL SPACE

– Duct work installed in crawl

space must be well insulated and provided with a vapor

barrier. In addition, the crawl space must be

thoroughly ventilated and provided with a good vapor

barrier as a ground cover. It is most desirable to install

the unit outdoors rather than inside the crawl space, so

that it will be readily accessible for service. In

addition, it is necessary to dispose of the condensate

from the outdoor coil on the heating cycle, and this is

virtually impossible with the unit installed inside the

crawl space.

SLAB MOUNTED AT GROUND LEVEL

– This

type installation is ideal for homes with a slab floor

construction where a roof mounted unit is not desired.

The supply and return duct work can be run through a

furred closet space.

THROUGH THE WALL

– This type installation

requires a suitable framework to be fabricated capable

of withstanding the unit weight. Normally the unit will

be insulated so as to minimize supply and return duct

work.

Manual 2100-354F

Page 12 of 32

FIGURE 2

SLAB MOUNTING AT GROUND LEVEL

(Above 32°F Outside Temperature)

FIGURE 3

AIRFLOW AND SERVICE ACCESS CLEARANCES

Manual 2100-354F

Page 13 of 32

FIGURE 4

ROOF TOP APPLICATION

(May also be required for ground level installations)

FIGURE 5

ELEVATED MOUNTING PLATFORMS

Manual 2100-354F

Page 14 of 32

FIGURE 6

PREFABRICATED ROOF CURB SPECIFICATIONS

HEAVY GAUGE GALVANIZED WITH WOOD NAILING STRIP, WELDED/LEAKPROOF

ONE PIECE CONSTRUCTION – READY TO INSTALL

TABLE 6

ROOF CURB DIMENSIONS

ledoMtinU

fooR

dooH

ledoM

fooR

bruC

ledoM

sliateDbruCfooR

ABCDEFGH I JKL

*4211HP

*4221HP

*0311HP

*0321HP

*6311HP

*6321HP

63-EHR300-2409573.0852.0452.73573.83573.532452.42521.91881.8457.41521.8352.83

*2411HP

*2421HP

*8401HP

*8421HP

*0601HP

06-EHR400-2409573.28521.44521.14573.83573.534452.13521.910557.412452.83

Revision Level

Manual 2100-354F

Page 15 of 32

FIGURE 7

FIELD FABRICATED CURBING

TABLE 7

DIMENSION “X” FOR FIELD

FABRICATED CURBING

ledoMtinU

dooHfooR

ledoM

noisnemiD

4211HP

4221HP

0311HP

0321HP

6311HP

6321HP

63-EHR14

2411HP

2421HP

8401HP

8421HP

0601HP

06EHR8/7-44

Manual 2100-354F

Page 16 of 32

AIR FILTERS

Air filters for the return air side of the system are not

provided as part of the various types of applications for

these models, and must be field supplied and installed as

part of the final installation.

Prior thought should be given to return air location and

placement of the air filter(s). The air filter(s) must be of

adequate size and readily accessible to the operator of the

equipment. Filters must be adequate in size and properly

maintained for proper operation. If this is not done,

excessive energy use, poor performance, and multiple

service problems will result. It is impossible to oversize air

filters. Generous sizing will result in cleaner air and coils

as well as lower operating costs and extend the time

between required changes. Table 8 shows minimum filter

areas and recommended filter sizes. Actual filter sizes can

vary with the installation due to single or multiple returns

utilizing a filter/grille arrangement or being placed

immediately ahead of the indoor coil face in the return air

duct.

OTHER INSTALLATIONS

– Many other

installations are possible with the packaged heat

pump. No matter what the installation, always

consider the following facts:

A. Insure that the discharge air is not obstructed in

any way so as to cause operation difficulties.

B. The indoor coil drain pan is equipped with a

coupling that must be piped through a condensate

drain trap to a suitable drain.

C. Always mount the unit in such a position that it

may be easily reached for servicing and

maintenance.

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° outdoor

ambient temperature, the installation of low ambient

controls (CMA-6) to unit is required.

CONDENSATE DRAIN TRAP

It is very important to provide a trap in the condensate

drain line to allow a positive liquid seal in the line and

assure correct drainage from the coil condensate pan.

Install condensate drain trap shown in Figure 8. Use drain

connection size or larger. Do not operate unit without

trap. Unit must be level or slightly inclined toward drain.

With a trap installed on a unit located in an unconditioned

area, water in the trap may freeze. It is recommended that

the trap material be of a type that will allow for expansion

of water when it freezes.

FIGURE 8

CONDENSATE DRAIN TRAP

NOTE: If roof hood accessory is to be used, information

on air filters may be found under that heading in

this manual. Air filters are supplied as part of

that package.

TABLE 8

FILTERS REQUIRED AND SIZE

.oNledoMaerAretliFmuminiM

dednemmoceR

eziS

4211HP

4221HP

0311HP

0321HP

6311HP

6321HP

sehcnIerauqS264

)teeFerauqS12.3(

1x8/5-03x51

2411HP

2421HP

8401HP

8421HP

0601HP

sehcnIerauqS806

)teeFerauqS26.4(

1x02x61)2(

Manual 2100-354F

Page 17 of 32

FIGURE 9

LOW VOLTAGE WIRING

WIRING – MAIN POWER

Refer to the unit rating plate for wire sizing information

and maximum fuse size. Each outdoor unit is marked with

a “Minimum Circuit Ampacity”. This means that the field

wiring used must be sized to carry that amount of current.

If field installed heaters are added to the basic unit, a

second separate power supply circuit will be required. The

heater rating plate located adjacent to the basic unit rating

plate will show the appropriate circuit ampacity fuse size,

etc. (Also see “Electrical Data” on pages 3, 4 and 5.) All

models are suitable for connection with copper wire only.

These instructions must be adhered to. Refer to the

National Electrical Code for complete current carrying

capacity data on the various insulation grades of wiring

material.

The unit rating plate lists a “Maximum Time Delay Fuse”

or “HACR” type circuit breaker that is to be used with the

equipment. The correct size must be used for proper circuit

protection and also to assure that there will be no nuisance

tripping due to the momentary high starting current of the

compressor.

WIRING – 24V LOW VOLTAGE

CONTROL CIRCUIT

Nine (9) wires should be run from thermostat subbase to

the 24V terminal board in the unit. A nine conductor,

18 gauge copper, color-coded thermostat cable is

recommended. The connection points are shown in

Figure 9.

Manual 2100-354F

Page 18 of 32

TABLE 10

THERMOSTAT WIRE SIZE

remrofsnarT

ALF

eriW

eguaG

htgneLmumixaM

teeFnI

553.202

001

061

052

THERMOSTATS

See specific wiring information for the different models, heater KWs, and voltages.

IMPORTANT NOTE: Only the thermostats shown above are recommended for use with this equipment.

TABLE 9

HEAT PUMP THERMOSTATS

tatsomrehTserutaeFtnanimoderP

940-3048

)083-39F1(

taeHegats2;looCegats2

cinortcelEelbammargorP

revoegnahclaunaMrootuA

850-3048

)1511D0225HT(

taeHegats2;looCegats2

elbammargorP-noNcinortcelE

revoegnahclaunaMrootuA

Manual 2100-354F

Page 19 of 32

THERMOSTAT INDICATOR LAMPS

The red lamp marked “EM. HT.” comes on and stays on

whenever the system switch is placed in Em. Ht. position.

The green lamp marked “Check” will come on if there is

any problem that prevents the compressor from running

when it is supposed to be.

EMERGENCY HEAT POSITION

The operator of the equipment must manually place the

system switch in this position. This is done when there is a

known problem with the outdoor section, or when the green

“Check” lamp comes on indicating a problem.

TRANSFORMER TAPS

230/208V, 1 phase and 3 phase equipment employ dual

primary voltage transformers. All equipment leaves the

factory wired on 240V tap. For 208V operation, reconnect

from 240V to 208V tap. The acceptable operating 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 field power

connection point in the unit and while the unit is

operating at full load (maximum amperage

operating condition).

COMPRESSOR CUTOFF THERMOSTAT

and OUTDOOR THERMOSTAT WIRING

Heat pump compressor operation at outdoor temperatures

below 0°F are neither desirable not advantageous in terms

of efficiency. Since most equipment at time of

manufacture is not designated for any specific destination

of the country and most of the equipment is installed in

areas not approaching the lower outdoor temperature range,

the compressor cutoffs are not factory installed.

Outdoor thermostats are available to hold off various banks

of electric heat until needed as determined by outdoor

temperature. The set point of either type of thermostat is

variable with geographic region and sizing of the heating

equipment to the structure. Utilization of the Heating

Application Data and the heat loss calculation of the

building are useful in determining the correct set points.

Refer to Installation Instructions of CMH-14 Outdoor

Thermostat Kit for more information.

FIGURE 10

UNIT 24V TERMINAL BOARD (5 THROUGH 10 KW)

Manual 2100-354F

Page 20 of 32

COMPRESSOR CUTOFF THERMOSTAT

WIRING (5 through 10 KW) (FIGURE 10)

COMPRESSOR CUTOFF THERMOSTAT

WIRING (15 through 20 KW) (FIGURE 11)

TABLE 12

15 through 20 KW

ledoMWKstloVesahP

24211HP510321

14221HP510321

10311HP510321

0321HP510321

16311HP510321

6321HP510321

22411HP02,510321

2421HP510321

18401HP02,510321

C-,B-18401HP81,51064/0323

18421HP510321

B-18421HP510321

0601HP02,510321

C-,B-0601HP81,51064/0323

TABLE 11

5 through 10 KW

ledoMWKstloVesahP

24211HP8,5,00321

14221HP01,5,00321

10311HP8,5,00321

0321HP01,5,00321

16311HP8,5,00321

6321HP01,5,00321

22411HP01,5,00321

2421HP01,5,00321

18401HP01,5,00321

C-,B-18401hP9,0064/0323

18421HP01,5,00321

B-18421HP9,00323

0601HP01,5,00321

C-,B-0601HP9,0064/0323

FIGURE 11

UNIT 24V TERMINAL BOARD (15 through 20 KW)

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Model: PH12241

Category: Heat pumps

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