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INSTALLATION INSTRUCTIONS

SINGLE PACKAGE

AIR CONDITIONERS

MODELS

P1124A2 P1224A1

P1130A2 P1230A1

P1136A2 P1236A1

P1142A3 P1242A1

P1148A2 P1248A2

P1060A1

Bard Manufacturing Company

Manual :

2100-353C

Bryan, Ohio 43506

Supersedes:

2100-353B

Since 1914 . . . Moving ahead just as planned

File:

Volume II Tab 10

Date:

01-09-03

 

© 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-containedunit 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

 

 

 

 

 

 

P1124A2

800

720

- 880

0.20

0.50

 

 

 

 

 

P1224A1

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

P1124A2

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

17

21

25

18

12

29

 

 

 

 

 

 

 

BCSC

10.3

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

11.7/12.3

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

8.4/9.0

12.1/13.6

13.8/15.4

9.0/9.6

4.9

17.0/18.5

 

 

 

 

 

 

 

Lock Roter Amps

56/56

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.)

54

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

P1224A1

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

17

21

25

19

30

34

23

 

 

 

 

 

 

 

 

BCSC

10.3

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. **

25

30

40

25

45

50

35

 

 

 

 

 

 

 

 

Tota unit Amps – 230/208

11.8/12.4

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

8.4/9.0

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

56/56

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

 

P1124A2

P1124A1

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

 

EH3PC-A05

240/208-1

 

NA

S

NA

S

NA

NA

 

NA

S

NA

This column

 

 

 

 

 

 

 

 

 

 

 

 

 

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 Table250-95of 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

 

 

 

 

 

 

 

 

 

 

 

 

 

P1124A2

 

 

 

 

 

 

 

 

 

 

 

 

P1224A1

 

 

 

 

 

 

 

 

 

 

 

 

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 withbuilt-infilters 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

FIGURE 2

SLAB MOUNTING AT GROUND LEVEL (Above 32°F Outside Temperature)

MIS-1184

FIGURE 3

AIRFLOW AND SERVICE ACCESS CLEARANCES

MIS-1185

Manual 2100-353

Page 10

FIGURE 4

ROOF TOP APPLICATION

(May also be required for ground level installations)

MIS-1176

FIGURE 5

ELEVATED MOUNTING PLATFORMS

MIS-1183

 

Manual

2100-353

Page

11

Page

Manual

12

353-2100

FIGURE 6

PREFABRICATED ROOF CURB SPECIFICATIONS

HEAVY GAUGE GALVANIZED WITH WOOD NAILING STRIP, WELDED/LEAKPROOF

ONCE PIECE CONSTRUCTION – READY TO INSTALL

MIS-1177C

TABLE 6

ROOF CURB DETAILS (Refer to Figure 7)

 

Roof

Roof

 

 

 

 

Roof Curb Details

 

 

 

 

 

Hood

Curb

 

 

 

 

 

 

 

 

 

 

 

 

Unit Model

A

B

C

D

E

F

G

H

I

J

K

L

Model

Model

P1124A3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1224A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1130A2

RHE-36

9042-003

80.375

40.25

37.25

38.375

35.375

42

24.25

19.125

48.188

14.75

38.125

38.25

P1230A1

P1136A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1236A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1142A3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1242A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1148A2

RHE-60

9042-004

82.375

44.125

41.125

38.375

35.375

44

31.25

19.125

50

14.75

42

38.25

P1248A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1060A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE 7

FIELD FABRICATED CURBING

j A SEPARATE METAL FLASHING SHOULD BE

INSTALLED AROUND WOOD CURBING. CAULK AND SEAL ALL JOINTS AND WEATHERPROOF.

MIS-1178A

TABLE 7

DIMENSION FOR X IN FIG. 7

Unit Model

Roof Hood

Dimension

 

 

Model

X

 

 

P1124A2

 

 

 

 

P1224A1

 

 

 

 

P1130A2

RHE-36

41

 

 

P1230A1

 

 

 

 

 

 

P1136A2

 

 

 

 

P1236A1

 

 

 

 

 

 

 

 

 

P1142A3

 

 

 

 

P1242A1

RHE60

44-7/8

 

 

P1148A2

 

 

P1248A2

 

 

 

 

P1060A1

 

 

 

 

 

 

 

 

 

 

 

Manual

2100-353

 

 

Page

13

5.OTHER INSTALLATIONS – Many other installations are possible with the packaged air conditioner. 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 is such a position that it may be easily reached for servicing and maintenance.

D.Insure that the unit is clear so that proper air flow 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.

AIR FILTERS

Air filters for the return air side of the system are not provided as part of 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.

TABLE 8

FILTER REQUIREMENTS & SIZES

Model No.

Minimum Filter Area

Recommended

Size

 

 

 

 

 

P1124A2

 

 

P1224A1

462 Square Inches

 

P1130A2

15x30-5/8x1

P1230A1

(3.21 Square Feet)

 

P1136A2

 

 

P1236A1

 

 

 

 

 

P1142A3

 

 

P1242A1

608 Square Inches

(2) 16x20x1

P1148A2

(4.62 Square Feet)

P1248A2

 

 

 

P1060A1

 

 

 

 

 

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.

FIGURE 8

CONDENSATE DRAIN TRAP

MIS-136

Manual 2100-353

Page 14

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 Specifications” on pages 3, 4 and 5.) All models are suitable for connection with copper wire only. These instructionsmust be adhered to. Refer to the National Electrical Code for complete current carrying capacity data on the various insulation grades of wiring material.

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

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

Five (5) wires should be run from thermostat subbase to the 24V terminal board in the unit. A five conductor, 18 gauge copper, color-codedthermostat cable is recommended. The connection points are shown in Figure 9.

TABLE 9

THERMOSTAT WIRE SIZE

 

 

 

Maximum

 

 

 

Distance

Transformer VA

FLA

Wire Gauge

In Feet

 

 

20

45

 

 

18

60

55

2.3

16

100

 

 

14

160

 

 

12

250

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).

THERMOSTATS

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

TABLE 10

WALL THERMOSTAT AND SUBBASE COMBINATIONS

Thermostat

Subbase

 

Predominant Features

 

 

 

 

8403-022

8403-003

1 stage heat, 1 stage cool,

Mercury

T87F3111

Q539A1220

System: Heat-off-cool

Fan: on-auto

8403-041

——

1 stage heat, 1 stage cool,

Mercury

T8034C1499

System: Heat-off-cool

Fan: on-auto

 

8403-049

——

2 stage heat, 2 stage cool,

 

1F93-380

Electronic

Programmable

 

 

 

8403-043

——

1 stage heat, 1 stage cool,

Mercury

CM200

System: Heat-off-cool

Fan: on-autoSnap Action

 

8403-048

 

1 stage heat, 1 stage cool,

Mercury

——

System: Heat-off-cool

Fan: on-auto

T8400C1313

 

Electronic

Non-Programmable

 

 

8403-019

8404-012

1 stage heat, 1 stage cool,

Mercury

T874C1760

Q674C1760

System: Heat-auto-cool

Fan: on-auto

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

Manual 2100-353

Page 15

FIGURE 9

LOW VOLTAGE WIRING

MIS-1180

Manual 2100-353

Page 16

START UP AND OPERATION

THREE PHASE SCROLL COMPRESSOR START UP INFORMATION

Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.

However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as, substantially reduced current draw compared to tabulated values.

Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time there will be no negative impact on the durability of the compressor. However, reverse operation for over one hour may have a negative impact on the bearing due to oil pump out.

NOTE: If compressor is allowed to run in reverse rotation for several minutes the compressor’s internal protector will trip.

All three phase ZR*3 compressors are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminals should maintain proper rotation direction.

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

SEQUENCE OF OPERATION

COOLING – CircuitR-Ymakes at thermostat pulling in compressor contactor starting the compressor and outdoor motor. The G (indoor motor) circuit is automatically completed on any call for cooling operation, or can be energized by manual fan switch on subbase for constant air circulation.

HEATING – A circuitR-W1is completed on each heating cycle energizing electric heat if so equipped.

START UP NOTES

For improved start up performance, wash the indoor coil with dishwasher detergent.

INDOOR BLOWER MOTOR

Some models feature a variable speed (ECM) motor providing high efficiency, low sound levels and soft start capabilities. The motor is self adjusting to provide the proper air flow rate at duct static pressures up to 0.50” WC without user adjustment or wiring changes.

On command from the wall thermostat the motor will start slowly and ramp up to full speed over a period of 1015 seconds.

When the thermostat is satisfied the blower will operate for approximately 1 minute, and then slow down and stop.

COMPRESSOR CONTROL MODULE

The compressor control is an anti-shortcycle/lockout timer with high and low pressure switch monitoring and alarm output.

ADJUSTABLE DELAY-ON-MAKEAND BREAK TIMER

On a call for compressor operation the delay-on-make period begins which will be 10% of thedelay-on-break setting. When thedelay-on-makeis complete and the high pressure switch (and low pressure switch if employed) is closed, the compressor contactor is energized. Upon shutdown thedelay-on-breaktimer starts and prevents restart until thedelay-on-breakanddelay-on-makeperiods have expired.

HIGH PRESSURE SWITCH AND LOCKOUT

SEQUENCE (Standard Feature)

If the high pressure switch opens, the compressor contactor will de-energizeimmediately. The lockout timer will go into asoft lockout and stay in soft lockout until the high pressure switch closesand thedelay-on-make time has expired. If the high pressure switch opens again in this same operating cycle the unit will go intomanual lockout condition and the alarm circuit will energize. Recycling the wall thermostat resets the manual lockout.

Manual 2100-353

Page 17

LOW PRESSURE SWITCH, BYPASS, AND LOCKOUT SEQUENCE

NOTE: The low pressure switch is an optional control and the bypass and lockout sequence are part of the standard compressor control module.

If the low pressure switch opens for more that 120 seconds, the compressor contactor will de-energizeand go into a soft lockout. Regardless the state of the low pressure switch, the contactor will reenergize after thedelay-on-maketime delay has expired. If the low pressure switch remains open or opens again for longer than 120 seconds the unit will go into manual lockout condition and the alarm circuit will energize. Recycling the wall thermostat resets the manual lockout.

.

ALARM OUTPUT

Alarm terminal is output connection for applications where alarm signal is desired. This terminal is powered whenever compressor is locked out due to HPC or LPC sequences as described.

NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high pressure switch and low pressure switch cut out and cut in settings are fixed by specific air conditioner or heat pump unit model. The lockout features, both soft and manual, are a function of the Compressor Control Module.

ADJUSTMENTS

ADJUSTABLE DELAY-ON-MAKEANDDELAY-ON-BREAKTIMER

The potentiometer is used to select Delay-on-Breaktime from 30 seconds to 5 minutes.Delay-on-Make(DOM) timing onpower-upand after power interruptions is equal to 2 minutes plus 10% ofDelay-on-Break(DOB) setting:

0.5 minute

(30 seconds)

DOB = 123 second DOM

1.0 minute

(60 seconds)

DOB = 126 second DOM

2.0 minute (120 seconds)

DOB = 132 second DOM

3.0 minute (160 seconds)

DOB = 138 second DOM

4.0 minute (240 seconds)

DOB = 144 second DOM

5.0 minute (300 seconds)

DOB = 150 second DOM

Manual 2100-353

Page 18

SERVICE AND TROUBLESHOOTING

SERVICE HINTS

1.Caution homeowner to maintain clean air filters at all times. Also, not to needlessly close off supply and return air registers. This reduces air flow through the system which shortens equipment service life as well as increasing operating costs.

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

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

PRESSURE SERVICE PORTS

High and low pressure service ports are installed on all units so that the system operating pressures can be observed. Pressure tables can be found later in this manual covering all models on cooling cycle. It is imperative to match the correct pressure table to the unit by model number.

REFRIGERANT CHARGE

The correct system R-22charge is shown on the unit rating plate. Optimum unit performance will occur with a refrigerant charge resulting in a suction line temperature (6” from compressor) as shown in Table 11.

TABLE 11

SUCTION LINE TEMPERATURES

 

Rated

95° OD

82° OD

Model

Airflow

Temperature

Temperature

 

 

 

 

P1124A2

800

56 - 58

63 - 65

 

 

 

 

P1224A1

800

56 - 58

63 - 65

P1130A2

1125

56 - 58

63 - 65

 

 

 

 

P1230A1

1000

56 - 58

63 - 65

P1136A2

1250

57 - 59

58 - 60

 

 

 

 

P1236A1

1100

57 - 59

58 - 60

P1142A3

1400

57 - 59

58 - 60

 

 

 

 

P1242A1

1400

57 - 59

58 - 60

P1148A2

1550

54 - 57

58 - 60

 

 

 

 

P1248A2

1550

53 - 55

56 - 58

P1060A1

1700

47 - 49

54 - 56

 

 

 

 

The above suction line temperatures are based upon 80°F dry bulb/67°F wet bulb (50% RH) temperature and rated airflow across the evaporator during cooling cycle.

FAN BLADE SETTINGS

Shown in Figure 10 are the correct fan blade setting dimensions for proper air delivery across the outdoor coil.

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

FIGURE 10

FAN BLADE SETTING

TABLE 12

FAN BLADE SETTING DIMENSIONS

Model

Dimension "A"

 

 

P1124A2

1.00"

 

 

P1224A1

1.00"

P1130A2

.75"

 

 

P1230A1

1.00"

P1136A2

1.00"

 

 

P1236A1

1.00"

P1142A3

1.75"

 

 

P1242A1

1.75"

P1148A2

1.75"

 

 

P1248A2

1.75"

 

 

P1060A1

1.75"

 

 

Manual 2100-353

Page 19

SUCTION AND DISCHARGE TUBE BRAZING

Compliant Scroll compressors have copper plated steel suction and discharge tubes. These tubes are far more rugged and less prone to leaks than copper tubes used on other compressors. Due to different thermal properties of steel and copper, brazing procedures may have to be changed from those commonly used.

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

To connect:

Recommended brazing materials: silfos with minimum 5% silver or silver braze material with flux.

Reinsert tube into fitting.

Heat tube uniformly in Area 1 moving slowly to Area 2. When joint reaches brazing temperature, apply brazing material. (See Figure 11)

Heat joint uniformly around the circumference to flow braze material completely around the joint.

Slowly move torch into Area 3 to draw braze material into joint. (See Figure 11.)

Do not overheat joint.

FIGURE 11

BRAZING DIAGRAM

MIS-1179

TABLE 13

INDOOR BLOWER PERFOMANCE

ESP In

P1124A2

 

P1130A2

 

P1136A2

 

P1142A3

 

P1148A2

 

P1060A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H2O

Dry /

Wet

 

Dry /

Wet

 

Dry /

Wet

 

Dry /

Wet

 

Dry / Wet

 

Dry / Wet

0.0

1025

/ 960

 

1350

/

1210

 

1465

/

1375

 

1650

/

1625

 

1950 / 1920

 

1850 / 1850

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

935

/ 870

 

1300

/

1160

 

1430

/

1340

 

1550

/

1525

 

1860 / 1830

 

1800 / 1780

0.2

865

/ 800

 

1240

/

1100

 

1385

/

1295

 

1435

/

1400

 

1780 / 1750

 

1725 / 1700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.3

835

/ 770

 

1175

/

1035

 

1340

/

1250

 

1340

/

1310

 

1680 / 1660

 

1660 / 1625

0.4

800

/

735

 

1120

/

980

 

1275

/

1185

 

1230

/

1210

 

1580 / 1550

 

1580 / 1540

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

750

/

685

 

1050

/

910

 

1190

/

1100

 

1120

/

1100

 

1500 / 1480

 

1500 / 1475

Manual 2100-353

Page 20

TABLE 14

PRESSURE TABLE

COOLING

 

 

 

Air Temperature Entering Outdoor Coil Degrees F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Return Air

Pressure

75

80

85

90

95

100

105

110

115

Model

 

Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

70

74

77

79

80

82

83

84

85

 

 

62 deg. WB

High Side

219

220

224

234

248

258

276

293

316

P1124A2

 

80 deg. DB

Low Side

75

79

82

84

86

88

89

90

91

 

67 deg. WB

High Side

224

225

230

240

254

265

283

300

324

 

 

 

 

85 deg. DB

Low Side

81

85

88

90

92

94

96

97

98

 

 

72 deg. WB

High Side

232

233

238

248

263

274

293

311

335

 

 

75 deg. DB

Low Side

74

75

77

79

79

80

81

82

83

 

 

62 deg. WB

High Side

188

203

217

233

249

265

282

299

317

P1224A1

 

80 deg. DB

Low Side

79

80

82

84

85

86

87

88

89

 

67 deg. WB

High Side

193

208

223

239

255

272

289

307

325

 

 

 

 

85 deg. DB

Low Side

82

83

85

87

88

89

90

91

92

 

 

72 deg. WB

High Side

200

215

231

247

264

282

299

318

336

 

 

75 deg. DB

Low Side

73

75

76

77

79

80

81

82

83

 

 

62 deg. WB

High Side

200

219

234

254

271

288

307

327

342

P1130A2

 

80 deg. DB

Low Side

75

80

81

82

84

85

86

87

88

 

67 deg. WB

High Side

205

225

240

260

278

295

315

335

351

 

 

 

 

85 deg. DB

Low Side

84

86

87

88

90

91

92

94

95

 

 

72 deg. WB

High Side

212

233

248

269

287

305

326

347

363

 

 

75 deg. DB

Low Side

72

73

74

75

77

78

79

79

80

 

 

62 deg. WB

High Side

199

213

227

243

258

275

293

310

330

P1230A1

 

80 deg. DB

Low Side

77

78

79

80

82

8/3

84

85

86

 

67 deg. WB

High Side

204

218

233

249

265

282

300

318

338

 

 

 

 

85 deg. DB

Low Side

80

81

82

83

85

86

87

88

89

 

 

72 deg. WB

High Side

211

226

241

258

274

292

311

329

350

 

 

75 deg. DB

Low Side

67

71

73

75

77

78

79

80

81

 

 

62 deg. WB

High Side

195

215

229

249

263

282

302

317

336

P1136A2

 

80 deg. DB

Low Side

72

76

78

80

82

84

85

86

87

 

67 deg. WB

High Side

200

220

235

255

270

290

310

325

345

 

 

 

 

85 deg. DB

Low Side

77

82

84

86

88

90

91

92

94

 

 

72 deg. WB

High Side

207

228

243

264

279

300

321

336

357

 

 

75 deg. DB

Low Side

71

73

75

76

78

79

79

80

81

 

 

62 deg. WB

High Side

209

225

242

258

275

293

310

329

346

P1236A1

 

80 deg. DB

Low Side

76

78

80

81

83

84

85

86

87

 

67 deg. WB

High Side

214

231

248

265

282

300

318

337

355

 

 

 

 

85 deg. DB

Low Side

79

81

83

84

86

87

88

89

90

 

 

72 deg. WB

High Side

221

239

257

274

292

311

329

349

367

(Continued on Page 22 in Table 14A)

Manual 2100-353

Page 21

TABLE 14A

PRESSURE TABLE

COOLING

Air Temperature Entering Outdoor Coil Degrees F

 

Return Air

Pressure

75

80

85

90

95

100

105

110

115

Model

Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

70

72

75

77

78

79

80

81

82

 

62 deg. WB

High Side

208

223

239

254

271

288

305

324

342

P1142A3

80 deg. DB

Low Side

75

77

80

82

84

85

96

87

88

67 deg. WB

High Side

213

229

245

261

278

295

313

332

351

 

 

85 deg. DB

Low Side

81

83

86

88

0

91

92

94

95

 

72 deg. WB

High Side

220

237

254

270

288

305

324

344

363

 

75 deg. DB

Low Side

70

72

74

76

78

79

80

81

82

 

62 deg. WB

High Side

192

206

220

236

252

268

286

304

323

P1242A1

80 deg. DB

Low Side

75

77

79

81

83

85

86

87

88

67 deg. WB

High Side

197

211

226

242

258

275

293

312

331

 

 

85 deg. DB

Low Side

78

80

82

84

86

88

89

90

91

 

72 deg. WB

High Side

204

218

234

250

267

285

303

323

343

 

75 deg. DB

Low Side

73

74

75

76

78

79

80

81

82

 

62 deg. WB

High Side

203

218

231

246

264

278

294

312

330

P1148A2

80 deg. DB

Low Side

78

79

81

82

83

84

86

87

88

67 deg. WB

High Side

208

222

237

252

268

285

302

320

338

 

 

85 deg. DB

Low Side

83

85

87

88

87

91

92

93

94

 

72 deg. WB

High Side

215

230

245

261

273

295

313

331

350

 

75 deg. DB

Low Side

70

72

73

75

77

79

79

81

83

 

62 deg. WB

High Side

200

215

230

247

263

281

298

317

336

P1248A2

80 deg. DB

Low Side

75

77

78

80

82

84

85

87

89

67 deg. WB

High Side

205

220

236

253

270

288

306

325

345

 

 

85 deg. DB

Low Side

78

80

81

83

85

87

88

90

92

 

72 deg. WB

High Side

212

228

244

262

279

298

317

336

357

 

75 deg. DB

Low Side

65

66

68

69

70

72

74

75

76

 

62 deg. WB

High Side

214

230

247

264

284

299

318

336

355

P1060A1

80 deg. DB

Low Side

69

71

72

74

76

77

79

80

82

67 deg. WB

High Side

219

236

253

271

289

307

326

345

364

 

 

85 deg. DB

Low Side

74

76

78

79

81

83

85

86

88

 

72 deg. WB

High Side

227

244

262

280

296

318

337

357

377

Manual 2100-353

Page 22

TROUBLESHOOTING ECM BLOWER MOTORS

CAUTION

Disconnect power from unit before removing or replacing connectors, or servicing motor. Wait at least 5 minutes after disconnection power before opening motor.

SYMPTOM

Motor rocks slightly when starting.

Motor won't start

No movement

Motor rocks, but wo'nt start

Motor oscillates up and down while being tested off of blower

Noisy blower of cabinet

"Hunts" or "puffs" at high CFM (speed)

Evidence of Moisture

Motor failure of malfunction has occured and moisture is present

Evidence of moisture present inside air mover

DO

Check out motor, controls, wiring and connections thoroughly before replacing motor

Orient connectors down so water ca'nt get in;

install "drip loops"

Use authorized motor and control model numbers for replacement

Keep static pressure to a minimum:

Recommend high efficiency, low static filters

Recommend keeping filters clean

Design duct work for minimum static, maximum comfort

Look for and recommend duct work improvement,where necessary, in replacement.

CAUSE / PROCEDURE

This is normal start-upfor ICM

Check power at motor

Check low voltage (24 VAC R to C) at motor

Check low voltage connections (G, Y, W, R, C) at motor

Check for unseated pins in connectors on motor harness

Test with a temporary jumper between R - G

Check motor for tight shaft

Run Mositure Check

Check for loose or compliant motor mount

Make sure blower wheel is tight on shaft

It is normal for motor to oscillate with no load on shaft.

Check for loose blower housing, panels, etc.

High static creating high blower speed?

Check for air whistling through seams in ducts, cabinets or panels.

Check for cabinet / duct deformation

Does removing panel or filter reduce "puffing"?

Reduce restiction

Reduce maximum airflow

Replace motor and perform Moisture Check

Perform Moisture Check

DON'T

Automatically assume the motor is bad

Locate connectors above 7 and 4 o'closk postions

Replace one motor of control model number with another (unless an authorized replacement)

Use high pressure drop filters. Some have 1/2" H2O drop!

Use restricted returns

Manual 2100-353

Page 23

SYMPTOM

Motor starts but runs erratically

Varies up and down or intermittent

"Hunts" or puffs" at high CRM (speed)

CAUSE / PROCEDURE

Check line voltage for variation or "sag"

Check low voltage connections (G, Y, W, R, C) at motor; unseated pins in motor harness connectors

Check "Bk" for erratic CFM command (in variable speed applications

Check out system controls - thermostat?

Perform Moisture Check

Does removing panel or filter reduce "puffing"?

Reduce restriction

Reduce maximum airflow

Stays at low CFM despite sysstem call for cool or Check low voltage (thermostat) wires and connections heat CFM

Verify fan is not in dalay mode - wait until delay is complete

"R" missing / not connected at motor Perform motor / control replacement check

 

Stays at high CFM

 

"R" missing / not connected at motor

 

 

Is fan in dalay mode? - wait until delay time complete

 

Blower wo'nt shut off

Current leakage from controls into G, Y or W?

 

 

 

Check for Triac switched thermostat or solid state

 

 

 

 

relay

SYMPTON

CAUSE / PROCEDURE

Excessive noise

 

Determine if it is air noise, cabinet, duct or motor noise .

 

 

 

Interview customer if necessry.

 

Air Noise

 

High static creating high blower speed?

 

 

 

Is airflow set properly?

 

 

 

Does removing filter cause blower to slow down?

 

 

 

 

Check / replace filter

 

 

 

Use low pressure drop filter

 

 

 

Check / correct duct restirctions

DO

Size the equpment wisely

Check orientation before inserting motor connectors

DON'T

Oversize system then compensate with low airflow

Plug in power connector backwards

Force plugs

MOISTURE CHECK PROCEDURE

COMFORT CHECK PROCEDURE

 

Connectors are oriented "down"

 

Check proper airflow settings

 

Arrange harnesses with "drip loop" under motor

 

Low static pressure for lowest noise

 

Condenste drain plugged?

 

Set low continuous fan CFM

Check for low airflow (too much latent capacity)

 

Use humidistat and 2-speedcooling units

 

Check for undercharged condition

 

Use zoning controls designed for ICM that regulate CFM

Check and plug leaks in reutrn ducts and cabinet

 

Thermostat in bad location?

 

 

 

 

Manual

2100-353

 

 

Page

24