Bard WA484, WA491, WA381, WA602, WA423 User Manual

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INSTALLATION INSTRUCTIONS

WALL MOUNTED

PACKAGE AIR CONDITIONERS

MODELS

WA381

WA423

WA484

WA491

WA602

Bard Manufacturing Company

Manual :

2100-398A

Bryan, Ohio 43506

Supersedes:

2100-398

Since 1914...Moving ahead just as planned.

File:

Volume III Tab 16

Date:

05-28-02

 

© Copyright 2002

Contents

Getting Other Information and Publications

1

Wall Mount General Information

 

Heat Pump Wall Mount Model Nomenclature

.......... 2

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

5

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

5

Duct Work ................................................................

6

Filters ................................................................

6

Fresh Air Intake .......................................................

6

Condensate Drain ....................................................

6

Installation Instructions

 

Wall Mounting Information .......................................

7

Mounting the Unit ....................................................

7

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

12

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

12

Figures

 

 

Figure 1

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

3

Figure 2 Fresh Air Damper Assembly ...................

6

Figure 3

Mounting Instructions ..............................

8

Figure 4 Electric Heat Clearance ..........................

9

Figure 5

Wall Mounting Instructions ....................

10

Figure 6

Wall Mounting Instructions ....................

10

Figure 7 Common Wall Mounting Installations .....

11

Figure 8 Unit 24V Terminal Board .......................

13

Figure 9 Fan Blade Setting .................................

16

Start Up

 

Important Installer Note .........................................

14

High Pressure Switch ............................................

14

Three Phase Scroll Compressor Start Up .............

14

Phase Monitor .......................................................

14

Condenser Fan Operation .....................................

14

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

14

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

15

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

15

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

15

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

15

Troubleshooting

 

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

16

Removal of Fan Shroud .........................................

16

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

16

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

18

Optional Accessories .............................................

19

Tables

 

 

 

Table

1

Electric Heat Table ..................................

2

Table

2

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

4 and 5

Table

3

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

12

Table 4

Wall thermostat and Subbase

 

 

 

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

12

Table

5

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

16

Table

6

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

16

Table

7

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

16

Table

7A

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

17

Table

8

Recommended Air Flow ........................

17

Table

9

Maximum EXP Electric Heat Only ........

17

Table

9A

Maximum EXP Electric Heat Only ........

17

Table

10

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

18

Table

11

Optional Accessories ............................

19

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, Refrigeration

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

Manufactured under the following

U.S. Patent numbers:

5,485,878; 5,301,777; 5,002,116; 4,924,934; 4,875,520; 4,825,936

Manual 2100-398

Page 1

WALL MOUNT GENERAL INFORMATION

HEAT PUMP WALL MOUNT MODEL NOMENCLATURE

MODEL NUMBER

CAPACITY

38 - 3 Ton

42 - 3 1/2 Ton

48 - 4 Ton

60 - 5 Ton

VOLTS & PHASE

A - 230/208/60/1 B - 230/208/60/3 C - 460/60/3

WA 42 3 – A 10 X N X X X A

CONTROL

MODULES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(See Chart Below)

 

 

 

 

 

 

 

 

COIL OPTIONS

REVISIONS

 

 

 

X - Standard

 

 

 

1 - Phenolic Coated Evaporator

 

 

 

 

 

 

COLOR OPTIONS

 

 

 

 

 

 

2 - Phenolic Coated Condenser

 

 

 

 

 

 

X - Beige (Standard)

3 - Phenolic Coated Evaporator

KW

 

1

- White

and Condenser

 

2

- Mesa Tan

 

VENTILATION OPTIONS

 

4

- Buckeye Gray

OUTLET OPTIONS

X - Barometric Fresh Air Damper (Standard)

5

- Desert Brown

X - Front (Standard)

B - Blank-off Plate

 

6

- Dark Bronze

 

M - Motorized Fresh Air Damper

 

 

 

 

V - Commercial Ventilator -

 

 

 

 

Motorized with Exhaust

FILTER OPTIONS

 

E - Economizer (Internal) - Fully

 

X - One Inch Throwaway (Standard)

 

 

 

 

 

Modulating with Exhaust

W - One Inch Washable

R - Energy Recovery Ventilator -

P - Two Inch Pleated

Motorized with Exhaust

 

NOTE: All vent options are without exhaust capability. May require separate field supplied barometric relief in building.

TABLE 1

ELECTRIC HEAT TABLE

 

 

 

WA381-A

 

 

 

 

WA381-B

 

 

WA381-C

 

 

 

WA423-A

 

 

 

 

WA423-B

 

 

WA423-C

Models

 

 

WA484-A

 

 

 

 

WA484-B

 

 

WA484-C

 

 

 

WA491-A

 

 

 

 

WA491-B

 

 

WA491-C

 

 

 

WA602-A

 

 

 

 

WA602-B

 

 

WA602-C

 

 

230-1

 

208-1

 

230-3

 

208-3

 

460-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KW

A

 

BTU

A

 

BTU

A

 

BTU

A

 

BTU

A

 

BTU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

20.8

 

17050

18.1

 

12800

- - -

 

- - -

- - -

 

- - -

- - -

 

- - -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

- - -

 

- - -

- - -

 

- - -

14.4

 

20500

12.5

 

15360

7.2

 

20480

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

33.3

 

27280

28.8

 

20450

- - -

 

- - -

- - -

 

- - -

- - -

 

- - -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

- - -

 

- - -

- - -

 

- - -

21.7

 

30600

18.7

 

23030

10.8

 

30700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

41.6

 

34130

36.2

 

25600

- - -

 

- - -

- - -

 

- - -

- - -

 

- - -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

62.5

 

51200

54.0

 

38400

36.2

 

51200

31.2

 

38400

17.3

 

47000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

- - -

 

- - -

- - -

 

- - -

43.3

 

61430

37.5

 

46100

- - -

 

- - -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

83.2

 

68260

72.1

 

51200

- - -

 

- - -

- - -

 

- - -

- - -

 

- - -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual 2100-398

Page 2

Page

Manual

3

398-2100

 

FIGURE 1

UNIT DIMENSIONS

 

Width

Depth

Height

 

Supply

 

 

 

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

(W)

(D)

(H)

A

 

B

 

 

C

B

E

F

G

I

J

 

K

 

 

 

 

L

M

N

O

 

P

Q

R

S

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA48

42.075

22.432

84.875

9.88

29.88

 

15.88

29.88

43.88

19.10

31.66

30.00

32.68

26.94

34.69

32.43

3.37

42.88

23.88

10.00

1.44

16.00

1.88

WA49

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRONT VIEW

 

 

SIDE VIEW

BACK VIEW

 

 

 

 

 

MIS-1262

TABLE 2

ELECTRICAL SPECIFICATIONS

SINGLE CIRCUIT

DUAL CIRCUIT

 

 

 

3

1

2

2

3

1

2

2

 

 

No.

 

Maximum

 

 

 

 

Maximum

 

 

 

 

 

 

 

External

Field

 

Minimum

External Fuse

 

 

 

 

 

Rated

Field

Minimum

Fuse or

Power

Ground

Circuit

or Circuit

Field Power

Ground

 

Volts &

Power

Circuit

Circuit

Wire

Wire

Ampacity

Breaker

Wire Size

Wire Size

 

Phase

Circuits

Ampacity

Breaker

Size

Size

 

 

 

 

 

 

 

 

Model

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA381-A00, A0Z

 

1

25

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A05

230/208-1

1

32

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A08

1

47

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A10

 

1

58

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA381-B00, B0Z

 

1

20

30

10

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B06

230/208-3

1

24

30

10

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B09

 

1

33

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

WA381-C00, C0Z

 

1

11

15

14

14

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C06

460-3

1

13

15

14

14

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C09

 

1

17

20

12

12

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

WA423-A00, A0Z

 

1

35

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A05

 

1

35

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A10

230/208-1

1

59

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A15

 

1 or 2

85

90

4

8

56

26

60

30

6

10

10

10

A20

 

1 or 2

110

110

2

6

56

52

60

60

6

6

10

10

WA423-B00, B0Z

 

1

24

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B09

230/208-3

1

34

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B15

1

52

50

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B18

 

1

60

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA423-C00, C0Z

 

1

13

15

14

14

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C09

460-3

1

17

20

12

12

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C15

 

1

26

30

10

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA484-A00, A0Z

 

1

36

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A05

 

1

36

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A10

230/208-1

1

59

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A15

 

1 or 2

85

90

4

8

59

26

60

30

6

10

10

10

A20

 

1 or 2

110

110

2

6

59

52

60

60

6

6

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA484-B00, B0Z

 

1

25

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B09

230/208-3

1

34

35

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B15

 

1

52

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B18

 

1

60

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

WA484-C00, C0Z

 

1

13

15

14

14

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C09

460-3

1

17

20

12

12

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C15

 

1

26

30

10

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

WA491-A00, A0Z

 

1

33

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A05

230/208-1

1

33

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A08

 

1

47

50

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A10

 

1

58

60

6

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA491-B00, B0Z

 

1

27

40

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B06

230/208-3

1

27

40

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B09

 

1

33

40

8

10

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA491-C00, C0Z

 

1

13

15

14

14

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C06

460-3

1

13

15

14

14

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C10

 

1

17

20

12

12

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TABLE CONTINUED ON PAGE 5

j Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. k Based on 75° C copper wire. All wiring must conform to NEC and all local codes.

lThese “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest revision), article 310 for power conductor sizing. CAUTION: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than 3 conductors are in a raceway.

Manual 2100-398

Page 4

TABLE CONTINUED FROM PAGE 4

SINGLE CIRCUIT

DUAL CIRCUIT

 

 

 

3

1

2

2

3

 

1

2

2

 

 

 

 

Maximum

 

 

Minimum

Maximum

 

 

 

 

 

 

 

 

Field

 

External Fuse

Field Power

Ground

 

 

No.

Minimum

External

Ground

Circuit

or

Circuit

 

Rated

Field

Fuse or

Power

Ampacity

Breaker

Wire Size

Wire Size

 

Volts &

Power

Circuit

Circuit

Wire

Wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

Phase

Circuits

Ampacity

Breaker

Size

Size

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA602-A00, A0Z

 

1

44

60

8

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

A05

 

1

44

60

8

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

A10

230/208-1

1

55

60

6

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

A15

 

1 or 2

85

90

4

8

59

26

60

 

30

6

10

10

10

A20

 

1 or 2

110

110

2

6

59

52

60

 

60

6

6

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA602-B00, B0Z

 

1

32

45

8

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

B09

230/208-3

1

34

45

8

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

B15

1

52

60

6

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

B18

 

1

60

60

6

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

WA602-C00, C0Z

 

1

16

20

12

12

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

C09

460-3

1

17

20

12

12

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

C15

 

1

26

30

10

10

N/A

N/A

N/A

 

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

j Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. k Based on 75° C copper wire. All wiring must conform to NEC and all local codes.

lThese “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the

National Electric Code (latest revision), article 310 for power conductor sizing. CAUTION: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than 3 conductors are in a raceway.

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

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 air conditioning 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. See Page 1 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

Manual 2100-398

Page 5

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