Bard P1224A2, P1124A3 User Manual

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INSTALLATION INSTRUCTIONS

SINGLE PACKAGE

AIR CONDITIONERS

MODELS

P1124A3 P1224A2

P1130A2 P1230A1

P1136A2 P1236A1

P1142A3 P1242A1

P1148A2 P1248A2

P1060A1

Bard Manufacturing Company

Manual :

2100-353D

Bryan, Ohio 43506

Supersedes:

2100-353C

Since 1914 . . . Moving ahead just as planned

File:

Volume II Tab 10

Date:

03-19-03

 

© Copyright 2003

CONTENTS

Getting Other Informations and Publications

 

General Instructions

 

Important ................................................................

2

Shipping Damage ....................................................

2

General ................................................................

2

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

2

Installation

 

Location ................................................................

9

Typical Installations .................................................

9

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

14

Air Filters ..............................................................

14

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

15

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

15

Transformer Taps ...................................................

15

Thermostats ...........................................................

15

Figures

 

 

Figure 1

Unit Dimensions ......................................

8

Figure 2

Slab Mounting at Ground Level ............

10

Figure 3

Airflow and Service Access

 

 

Clearances ............................................

10

Figure 4

Roof Top Application ..............................

11

Figure 5

Elevated Mounting Platforms .................

11

Figure 6

Prefabricated Rood Curb

 

 

Specifications ........................................

12

Figure 7

Field Fabricated Curbing .......................

13

Figure 8

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

14

Figure 9

Low Voltage Wiring ...............................

16

Figure 10 Fan Blade Setting .................................

19

Figure 11

Brazing Diagram ...................................

20

Start Up and Operation

 

Three Phase Scroll Compressor Start Up

 

Information .............................................................

17

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

17

Start Up Notes .......................................................

17

Indoor Blower Motor ..............................................

17

Compressor Control Module ..................................

17

Adjustments ...........................................................

18

Service and Troubleshooting

 

Service Hints .........................................................

19

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

19

Refrigerant Charge ................................................

19

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

19

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

20

Pressure Table .......................................................

14

Wiring Diagrams ...............................................

15-16

Troubleshooting ECM Blower Motors .............

23-24

Tables

 

 

 

Table

1

Rated CFM & ESP ..................................

2

Table

2

Electrical Specifications ..........................

3

Table

2A

Electrical Specifications ..........................

4

Table

2B

Electrical Spedifications ..........................

5

Table

3

Option Field Installed Heater Packages . 6

Table

4

Electric Heater Table ...............................

8

Table

5

Unit Dimensions ......................................

5

Table

6

Roof Curb Details .................................

13

Table

7

Dimension for Figure 7 ..........................

13

Table

8

Filter Requirements & Sizes .................

14

Table

9

Thermostat Wire Size ...........................

15

Table

10

Wall Thermostat and Subbase

 

 

 

Combinations ........................................

15

Table

11

Suction Line Temperatures ...................

19

Table

12

Fan Blade Setting Dimensions ..............

19

Table

13

Indoor Blower Performance ..................

20

Table

14

Pressure Table ......................................

21

Table

14A Pressure Table ......................................

22

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 2100-353

Page 1

GENERAL INSTRUCTIONS

IMPORTANT

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians. 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.

FIELD INSTALLED HEATER PACKAGES (OPTIONAL)

These packaged air conditions 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 data shown in Table 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.

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.

TABLE 1

RATED CFM AND EXTERNAL STATIC PRESSURE (ESP)

Model

Rated

Recommended

Rated

Max.

No.

CFM

Airflow Range

ESP

ESP

 

 

 

 

 

 

P1124A3

800

720

- 880

0.20

0.50

 

 

 

 

 

P1224A2

800

Note 1

0.10

0.50

 

 

 

 

 

 

P1130A2

1125

1020

- 1275

0.20

0.50

 

 

 

 

 

P1230A1

1000

Note 1

0.15

0.50

 

 

 

 

 

 

P1136A2

1250

1150

- 1400

0.30

0.50

 

 

 

 

 

P1236A1

1100

Note 1

0.15

0.50

 

 

 

 

 

P1142A3

1400

1260 - 1540

0.20

0.40

P1242A1

1400

Note 1

0.20

0.50

 

 

 

 

 

 

P1148A2

1550

1400

- 1700

0.40

0.50

 

 

 

 

 

P1248A2

1550

Note 1

0.20

0.50

 

 

 

 

 

 

P1060A1

1700

1530

- 1870

0.20

0.50

 

 

 

 

 

 

NOTE: ECM motors provide rated CFM up to 0.50 ESP

Manual 2100-353

Page 2

TABLE 2

ELECTRICAL SPECIFICATIONS

Model

P1124A3

P1130A2

P1136A2

P1136A1-B

P1136A1-C

P1142A3

 

 

 

 

 

 

 

Electric Rating –

230/208-60-1

230/208-60-1

230/208-60-1

230/208-60-3

460-60-3

230/208-60-1

60 Hz – Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Voltage Range

197 - 253

197 - 253

197 - 253

187 - 253

414 - 506

197 - 253

 

 

 

 

 

 

 

Minimum Circuit Ampacity

16

21

25

18

12

29

 

 

 

 

 

 

 

BCSC

10

13.6

16

11

6

18.5

 

 

 

 

 

 

 

Field Wire Size *

12

10

8

10

14

8

 

 

 

 

 

 

 

Ground Wire Size

12

10

10

10

14

10

 

 

 

 

 

 

 

Delay Fuse – Max. **

25

30

40

25

15

45

 

 

 

 

 

 

 

Tota unit Amps – 230/208

11.8/12.3

15.4/16.9

17.1/18.7

12.3/12.9

7.3

23.1/24.2

 

 

 

 

 

 

 

Compressor – Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor Type

Scroll

Scroll

Scroll

Scroll

Scroll

Scroll

 

 

 

 

 

 

 

Volts

230/208

230/208

230/208

230/208

460

230/208

Rated Load Amps

8.5/9.0

12.1/13.6

13.8/15.4

9.0/9.6

4.9

17.0/18.5

 

 

 

 

 

 

 

Lock Roter Amps

54/54

72.5/72.5

88/88

77/77

39

104/104

Fan Motor and Condenser

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan Motor – HP/RPM

1/5 - 1090

1/5 - 1075

1/5 - 1075

1/5 - 1075

1/5 - 1075

1/2 - 1075

 

 

 

 

 

 

 

Fan Motor Amps

1.2

1.6

1.6

1.6

1.0

2.5

 

 

 

 

 

 

 

Fan – Dia./CFM

20"/1942

20"/2400

20"/2100

20"/2000

20"/2000

24"/2850

 

 

 

 

 

 

 

Motor and Evaporator

 

 

 

 

 

 

Blower Motor – HP/RPM

1/3 - 1075

1/5 - 1075

1/5 - 1075

1/5 - 1075

1/5 - 1075

1/2 - 1075

 

 

 

 

 

 

 

Blower Motor – Amps

2.1

2.6

2.6

2.6

1.4

3.2

CFM Cooling & ESP

800 @ 0.20

1125 @ 0.20

1250 @ 0.30

1275 @ 0.30

1275 @ 0.30

1400 @ 0.20

 

 

 

 

 

 

 

Charge (R22 oz.)

52

64

93

93

93

89

Shipping Weight (pounds)

300

310

330

330

330

390

 

 

 

 

 

 

 

Manual 2100-353

Page 3

TABLE 2A

ELECTRICAL SPECIFICATIONS

Model

P1148A2

P1148A2-B

P1148A2-C

P1060A1

P1060A1-B

P1060A1-C

 

 

 

 

 

 

 

Electric Rating –

230/208-60-1

230/208-60-3

460-60-3

230/208-60-1

460-60-3

460-60-3

60 Hz – Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Voltage Range

197 - 253

187 - 253

414 - 506

197 - 253

187 - 253

414 - 506

Minimum Circuit Ampacity

32

24

12

42

28

14

 

 

 

 

 

 

 

BCSC

20.5

14.7

7

29

12

9

Field Wire Size *

8

10

12

8

8

12

 

 

 

 

 

 

 

Ground Wire Size

10

10

12

10

10

12

Delay Fuse – Max. **

50

35

15

60

45

20

 

 

 

 

 

 

 

Tota unit Amps – 230/208

24.2/26.2

17.9/19.1

8.8

30.9/33.7

21.7/23.7

11.2

Compressor – Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor Type

Scroll

Scroll

Scroll

Scroll

Scroll

Scroll

Volts

230/208

230/208

460

230/208

230/208

460

 

 

 

 

 

 

 

Rated Load Amps

18.5/20.5

12.2/13.4

6

25.2/28.2

16/18

8.4

Lock Roter Amps

137/137

91/91

50

169/169

123/123

62

 

 

 

 

 

 

 

Fan Motor and Condenser

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan Motor – HP/RPM

1/3 - 850

1/3 - 850

1/3 - 850

1/3 - 850

1/3 - 850

1/3 - 850

 

 

 

 

 

 

 

Fan Motor Amps

2.5

2.5

1.2

2.5

2.5

1.2

 

 

 

 

 

 

 

Fan – Dia./CFM

24"/3100

24"/3100

24"/3100

24"/3100

24"/3100

24"/3100

 

 

 

 

 

 

 

Motor and Evaporator

 

 

 

 

 

 

 

 

 

 

 

 

 

Blower Motor – HP/RPM

1/2 - 1075

1/2 - 1075

1/2 - 1075

1/2 - 1075

1/2 - 1075

1/2 - 1075

Blower Motor – Amps

3.2

3.2

1.6

3.2

3.2

1.6

 

 

 

 

 

 

 

CFM Cooling & ESP

1550 @ 0.40

1550 @ 0.40

1550 @ 0.40

1700 @ 0.20

1700 @ 0.20

1700 @ 0.20

Charge (R22 oz.)

 

 

 

120

120

120

 

 

 

 

 

 

 

Shipping Weight (pounds)

430

430

430

425

425

425

Manual 2100-353

Page 4

TABLE 2B

ELECTRICAL SPECIFICATIONS

Model

P1224A2

P1230A1

P1236A1

P1236A1-B

P1242A1

P1248A2

P1248A2-B

 

 

 

 

 

 

 

 

Electric Rating –

230/208-60-1

230/208-60-1

230/208-60-1

230/208-60-3

230/208-60-1

230/208-60-1

230/208-60-3

60 Hz – Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Voltage Range

197 - 253

197 - 253

197 - 253

187 - 253

197 - 253

197 - 253

187 - 253

 

 

 

 

 

 

 

 

Minimum Circuit Ampacity

15

21

25

19

30

34

23

 

 

 

 

 

 

 

 

BCSC

10

13.5

16.2

10.9

18

21

12.8

 

 

 

 

 

 

 

 

Field Wire Size *

12

10

8

10

8

6

8

 

 

 

 

 

 

 

 

Ground Wire Size

12

10

10

10

10

10

10

 

 

 

 

 

 

 

 

Delay Fuse – Max. **

20

30

40

25

45

50

35

 

 

 

 

 

 

 

 

Tota unit Amps – 230/208

11.7/12.4

15.7/17.1

19.2/21.1

14.9/15.8

23.2/24.1

25.5/27

19.4/19.7

 

 

 

 

 

 

 

 

Compressor – Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor Type

Scroll

Scroll

Scroll

Scroll

Scroll

Scroll

Scroll

 

 

 

 

 

 

 

 

Volts

230/208

230/208

230/208

230/208

230/208

230/208

230/208

 

 

 

 

 

 

 

 

Rated Load Amps

8.5/9.0

11.4/12.8

14.3/16.2

10/10.9

16.4/17.3

18.5/20

12.4/12.7

 

 

 

 

 

 

 

 

Lock Roter Amps

54/54

76/76

90.5/90.5

77/77

104/104

137/137

91/91

Fan Motor and Condenser

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan Motor – HP/RPM

1/5 - 1090

1/5 - 1075

1/5 - 1075

1/5 - 1075

1/3 - 825

1/3 - 825

1/3 - 825

 

 

 

 

 

 

 

 

Fan Motor Amps

1.2

1.6

1.6

1.6

2.5

2.5

2.5

Fan – Dia./CFM

20"/1975

20"/2400

20"/2100

20"/2100

24"/2900

24"/2350

24"/2350

 

 

 

 

 

 

 

 

Motor and Evaporator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blower Motor – HP/RPM

1/3 Variable

1/2 Variable

1/2 Variable

1/2 Variable

1/2 Variable

1/2 Variable

1/2 Variable

Blower Motor – Amps

2.2

2.7

3.3

3.3

4.3

4.5

4.5

 

 

 

 

 

 

 

 

CFM Cooling & ESP

800 @ 0.10

1000 @ 0.15

1100 @ 0.15

1100 @ 0.15

1400 @ 0.20

1550 @ 0.20

1550 @ 0.20

 

 

 

 

 

 

 

 

Charge (R22 oz.)

53

88

102

102

118

151

151

 

 

 

 

 

 

 

 

Shipping Weight (pounds)

300

330

340

340

410

430

430

Manual 2100-353

Page 5

Page

Manual

6

353-2100

TABLE 3

OPTIONAL FIELD INSTALLED HEATER PACKAGES

ONLY TO BE USED WITH THE MODELS INDICATED

Heater Package

Volts &

 

 

 

 

 

 

 

 

 

 

 

Model

Phase

P1124A3

P1124A2

P1130A2

P1230A1

P1236A2

P1136A1-C

 

P1136A1-C

P1236A1

P1236A1-B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-A05

240/208-1

S

NA

S

NA

S

A

 

A

NA

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-A08

240/208-1

S

NA

S

NA

S

A

 

A

NA

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-A10

240/208-1

S

NA

S

S

S

A

 

A

S

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-A15

240/208-1

NA

NA

S

NA

S

A

 

A

NA

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

This column

EH3PC-A05

240/208-1

NA

S

NA

S

NA

NA

 

NA

S

NA

 

 

 

 

 

 

 

 

 

 

 

 

is left blank

EH3PC-A10

240/208-1

NA

S

NA

NA

NA

NA

 

NA

NA

NA

 

intentionally.

 

 

 

 

 

 

 

 

 

 

 

 

EH3PC-A15

240/208-1

NA

NA

NA

S

NA

NA

 

NA

S

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-B09

240/208-3

A

NA

A

NA

A

S

 

A

NA

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-B15

240/208-3

NA

NA

A

NA

A

S

 

A

NA

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHPB-C09

480-3

NA

NA

A

NA

A

A

 

S

NA

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHPB-C15

480-3

NA

NA

A

NA

A

A

 

S

NA

NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heater Package

Volts &

 

 

 

 

 

 

 

 

 

 

 

Model

Phase

P1142A3

P1242A1

P1148A2

P1148A2-B

P1148A2-C

P1248A2

 

P1248A2-B

P1060A1

P1060A1-B

P1060A1-C

 

 

 

 

 

 

 

 

 

 

 

 

 

EH5PB-A05

240/208-1

S

S

S

A

A

S

 

A

S

A

A

EH5PB-A10

240/208-1

S

S

S

A

A

S

 

A

S

A

A

 

 

 

 

 

 

 

 

 

 

 

 

 

EH5PB-A15

240/208-1

S

S

S

A

A

S

 

A

S

A

A

EH5PB-A20

240/208-1

S

NA

S

A

A

NA

 

NA

S

A

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH5PB-B09

240/208-3

A

A

A

S

A

A

 

S

A

S

A

 

 

 

 

 

 

 

 

 

 

 

 

 

EH5PB-B15

240/208-3

A

A

A

S

A

A

 

S

A

S

A

EH5PB-B18

240/208-3

A

NA

A

S

A

NA

 

NA

A

S

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH5PC-C09

480-3

A

NA

A

A

S

NA

 

NA

A

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

EH5PC-C15

480-3

A

NA

A

A

S

NA

 

NA

A

A

S

EH5PC-C18

480-3

A

NA

A

A

S

NA

 

NA

A

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

S = Standard Application

– Heater volts and phase same as basic unit A =

Alternate Application

– Heater volts and phase different from basic unit.

N = Not Approved

 

 

 

 

 

 

 

 

 

 

 

Page

Manual

7

353-2100

TABLE 4

OPTIONAL FIELD INSTALLED ELECTRIC HEATER TABLE

 

 

Htr. KW &

Htr. KW &

 

 

 

 

Circuit B

 

 

 

 

 

 

 

 

 

 

 

 

 

Capacity

Capacity

 

 

 

 

1

2

3

 

 

@ 240 Volts

@ 208 Volts

 

Heater

 

Min.

Max. Over

Field

Ground

Heater Pkg.

Unit Volts

 

 

 

 

240/208V

Internal

No. Field

Circuit

Current

Power

Wire

Model No.

Phases

KW

BTUH

KW

BTUH

Htr. Amps

Fuses

Circuits

Ampacity

Protection

Wiring

Size

 

 

 

 

 

 

 

 

 

 

 

 

 

EH3PB-A05

240/208-1

5

17,100

3.75

12,800

20.8/18.1

 

1

26/23

30/25

10/10

10

EH3PB-A08

240/208-1

8

27,300

6.00

20,500

33.3/28.8

 

1

42/36

45/40

10/10

10

EH3PB-A10

240/208-1

10

34,100

7.50

26,000

41.6/36.2

 

1

53/46

60/50

6/8

10

EH3PB-A15

240/208-1

15

51,200

11.25

38,400

62.5/54.1

30/60

1

79/68

80/70

4/4

8

EH3PC-A08

240/208-1

5

17,100

3.75

12,800

20.8/18.1

 

1

26/23

30/25

10/10

10

EH3PC-A10

240/208-1

10

34,100

7.50

26,000

41.6/36.2

 

1

53/46

60/50

6/8

10

EH3PC-A15

240/208-1

15

51,200

11.25

38,400

62.5/54.1

30/60

1

79/68

80/70

4/4

8

EH5PB-A05

240/208-1

5

17,100

3.75

12,800

20.8/18.1

 

1

26/23

30/25

10/10

10

EH5PB-A10

240/208-1

10

34,100

7.50

26,000

41.6/36.2

 

1

53/46

60/50

6/8

10

EH5PB-A15

240/208-1

15

51,200

11.25

38,400

62.5/54.1

30/60

1

79/68

80/70

4/4

8

EH5PB-A20

240/208-1

20

68,200

15.00

51,200

83.2/72.1

60/60

1

104/91

110/100

2/3

6

EH3PB-B09

240/208-3

9

30,700

6.75

23,000

21.7/18.7

 

1

28/24

30/25

10/10

10

EH3PB-B15

240/208-3

15

51,200

11.25

38,400

36.2/31.2

 

1

46/39

50/40

8/8

10

EH5PB-B09

240/208-3

9

30,700

6.75

23,000

21.7/18.7

 

1

28/24

30/25

10/10

10

EH5PB-B15

240/208-3

15

51,200

11.25

38,400

36.2/31.2

 

1

46/39

50/40

8/8

10

EH5PB-B18

240/208-3

18

61,400

13.50

46,100

43.4/37.5

 

1

55/47

60/50

6/8

10

EH3PB-C09

480-3

9

30,700

8.26

28,200

10.8

 

1

15

15

14

14

EH3PB-C15

480-3

15

51,200

13.77

47,000

18.0

 

1

23

25

10

10

EH5PB-C09

480-3

9

30,700

8.26

28,200

10.8

 

1

15

15

14

14

EH5PB-C15

480-3

15

51,200

13.77

47,000

18.0

 

1

23

25

10

10

EH5PB-C18

480-3

18

61,400

16.53

56,400

21.7

 

1

28

30

10

10

jTime 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.

k Based on wire suitable for 75 degree C. Other wiring materials must be rated for marked “Minimum Circuit Ampacity” or greater. l Based upon Table 250-95 of N.E.C. 1993. See electric data for basic heat pump for Circuit A wiring specification requirements.

IMPORTANT: 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.

FIGURE 1

DIMENSIONS OF UNITS

MIS-1305

TABLE 5

DIMENSIONS OF UNITS

 

 

 

 

 

 

 

 

Duct Opening (Inches)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

 

Nominal Cabinet Dimensions (Inches)

 

Discharge

Return Air

 

 

 

 

 

 

 

 

 

 

 

 

 

No.

A

B

C

J

K

L

M

D

E

F

G

H

 

 

 

 

 

 

 

 

 

 

 

 

 

P1124A3

 

 

 

 

 

 

 

 

 

 

 

 

P1224A2

 

 

 

 

 

 

 

 

 

 

 

 

P1130A2

24-1/4

48-3/16

38-1/8

26-1/8

2-1/8

9/16

9/16

33

6

33

14

7/8

P1230A1

 

 

 

 

 

 

 

 

 

 

 

 

P1136A2

 

 

 

 

 

 

 

 

 

 

 

 

P1236A1

 

 

 

 

 

 

 

 

 

 

 

 

P1142A3

 

 

 

 

 

 

 

 

 

 

 

 

P1242A1

31-1/4

50

42

26

3

2-3/4

7-9/16

38

10

38

16

1-3/8

P1148A2

P1248A2

 

 

 

 

 

 

 

 

 

 

 

 

P1060A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual 2100-353

Page 8

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 1/4 inch per foot, while being level from side to side. 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 for prevailing winter winds are not in direct line with the outdoor 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 ice accumulation from interfering with the operation of the unit. A minimum of twelve inch 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

1.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. Two inch thick insulation with suitable vapor barrier is recommended for both outdoor and attic runs.

In roof top installation, as in all installations, the air conditioner 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.

2.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 will be outdoors rather than inside the crawl space, so that it will be readily accessible for service.

3.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.

4.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 2100-353

Page 9

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