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
Since 1914...Moving ahead just as planned.	Date:	05-28-02
	Date:	05-28-02

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
WA 42 3 – A 10 X N X X X A				MODULES
				MODULES
				(See Chart Below)
				COIL OPTIONS
REVISIONS				X - Standard
REVISIONS				1 - Phenolic Coated Evaporator
		COLOR OPTIONS		1 - Phenolic Coated Evaporator
		COLOR OPTIONS		2 - Phenolic Coated Condenser
		X - Beige (Standard)		3 - Phenolic Coated Evaporator
KW		1	- White	and Condenser
KW		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	FILTER OPTIONS
E - Economizer (Internal) - Fully	X - One Inch Throwaway (Standard)
	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
	398-2100

FIGURE 1

UNIT DIMENSIONS

Width

Depth

Height

Supply

Return

Model

(W)

(D)

(H)

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

No.

Maximum

External

Field

Minimum

External Fuse

Rated

Field

Minimum

Fuse or

Power

Ground

Circuit

or Circuit

Field Power

Ground

Volts &

Power

Circuit

Wire

Ampacity

Breaker

Wire Size

Phase

Circuits

Ampacity

Breaker

Size

Model

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

WA381-A00, A0Z

N/A

A05

230/208-1

N/A

A08

N/A

A10

N/A

WA381-B00, B0Z

N/A

B06

230/208-3

N/A

B09

N/A

WA381-C00, C0Z

N/A

C06

460-3

N/A

C09

N/A

WA423-A00, A0Z

N/A

A05

N/A

A10

230/208-1

N/A

A15

1 or 2

A20

1 or 2

110

WA423-B00, B0Z

N/A

B09

230/208-3

N/A

B15

N/A

B18

N/A

WA423-C00, C0Z

N/A

C09

460-3

N/A

C15

N/A

WA484-A00, A0Z

N/A

A05

N/A

A10

230/208-1

N/A

A15

1 or 2

A20

1 or 2

110

WA484-B00, B0Z

N/A

B09

230/208-3

N/A

B15

N/A

B18

N/A

WA484-C00, C0Z

N/A

C09

460-3

N/A

C15

N/A

WA491-A00, A0Z

N/A

A05

230/208-1

N/A

A08

N/A

A10

N/A

WA491-B00, B0Z

N/A

B06

230/208-3

N/A

B09

N/A

WA491-C00, C0Z

N/A

C06

460-3

N/A

C10

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

Maximum

Minimum

Maximum

Field

External Fuse

Field Power

Ground

No.

Minimum

External

Ground

Circuit

Rated

Field

Fuse or

Power

Ampacity

Breaker

Wire Size

Volts &

Power

Circuit

Wire

Model

Phase

Circuits

Ampacity

Breaker

Size

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

WA602-A00, A0Z

N/A

A05

N/A

A10

230/208-1

N/A

A15

1 or 2

A20

1 or 2

110

WA602-B00, B0Z

N/A

B09

230/208-3

N/A

B15

N/A

B18

N/A

WA602-C00, C0Z

N/A

C09

460-3

N/A

C15

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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