Bard WA372, WA302 User Manual

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		WALL MOUNTED
	INSTALLATION	PACKAGED
	INSTALLATION	AIR CONDITIONER
		AIR CONDITIONER
	INSTRUCTIONS	Models: WA302
		Models: WA302
		WA372

Bard Manufacturing Company, Inc.	Manual No.:	2100-404D
Bryan, Ohio 43506	Supersedes:	2100-404C
Since 1914...moving ahead just as planned.	File:	Volume III, Tab 16
	Date:	08-01-07


© Copyright 2002		Manual 2100-404D

Page

1 of 19

Contents

Getting Other Information and Publications		Start Up
For more information,		Important Installer Note .........................................	15
contact these publishers ..........................................	3	High Pressure Switch ............................................	15
		Three Phase Scroll Compressor Start Up
Wall Mount General Information		Information.............................................................	15
Air Conditioner Wall Mount Model Nomenclature .... 4		Phase Monitor .......................................................	15
Shipping Damage ....................................................	6	Service Hints .........................................................	15
General ....................................................................	6	Sequence of Operation..........................................	15
Duct Work ................................................................	7	Compressor Control Module ..................................	16
Filters .......................................................................	7	Adjustments ...........................................................	16
Fresh Air Intake .......................................................	7	Pressure Service Ports ..........................................	16
Condensate Drain....................................................	7
		Troubleshooting
Installation Instructions		Fan Blade Setting Dimensions ..............................	17
Wall Mounting Information .......................................	8	Removal of Fan Shroud .........................................	17
Mounting the Unit ....................................................	8	Refrigerant Charge ................................................	17
Top Outlet Only ........................................................	8	Cooling Pressures .................................................	18
Wiring — Main Power ........................................	8 & 9	Optional Accessories .............................................	19
Low Voltage Connections ........................................	9
Wiring — Low Voltage Wiring ..................................	9

Figures		Tables
Figure 1 Unit Dimensions .......................................	5	Table	1	Electrical Specifications ..........................	4
Figure 2 Blower Damper Assembly.........................	7	Table	2	Dimensions of Basic Unit ........................	5
Figure 3 Mounting Instructions .............................	10	Table	3	Electric Heat Table ..................................	6
Figure 4 Wall-Mounting Instructions ......................	11	Table	4	Operating Voltage Range........................	9
Figure 5 Wall-Mounting Instructions ......................	11	Table	5	Thermostat Wire Size .............................	9
Figure 6 Common Wall-Mounting Installations .....	12	Table	6	Wall Thermostat ......................................	9
Figure 7 Electric Heat Clearances ........................	13	Table	7	Fan Blade Dimensions ..........................	17
Figure 8 Low Voltage Wiring .................................	14	Table	8	Suction Line Temperatures ...................	17
Figure 9 Fan Blade Setting ...................................	17	Table	9	Indoor Blower Performance ..................	17
		Table	10	CFM and ESP .......................................	17
		Table	11	Maximum ESP of Operation
				Electric Heat Only .................................	17
		Table	12	Cooling Pressure ..................................	18
		Table	13	Optional Accessories ............................	19

Manual	2100-404D
Page	2 of 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 Avenue NW
	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

Manufactured under the following U.S. patent numbers:

5,485,878; 5,301,744; 5,002,116; 4,924,934; 4,875,520; 4,825,936; 4,432,409

Manual	2100-404D
Page	3 of 19

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

WA 37 2		—	A	10	X	X	X	X X A

MODEL				KW
NUMBER			REVISIONS	KW
			REVISIONS

CAPACITY				VOLTS & PHASE
CAPACITY
25	-	2 Ton		A - 230/208/60/1
25	-	2 Ton
37	-	3 Ton		B - 230/208/60/3
37	-	3 Ton
				C - 460/60/3

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Standard) B - Blank-off Plate

M - Motorized Fresh Air Damper

V - Commercial Room Ventilator - Motorized with Exhaust E - Economizer (Internal - Fully Modulating with Exhaust R - Energy Recovery Ventilator - with Exhaust

	CONTROL
	MODULES
	(See Spec.
COLOR OPTIONS	Sheet S3208)

X - Beige (Standard)

1	- White	COIL OPTIONS
2	- Mesa Brown	X- Standard
4	- Buckeye Gray	1 - Phenolic Coated Evaporator
5	- Desert Brown	2 - Phenolic Coated Condenser
6	- Dark Bronze	3 - Phenolic Coated Evaporator

		and Condenser
	FILTER OPTIONS	OUTLET OPTIONS
	X - 1-Inch Throwaway	OUTLET OPTIONS
	X - 1-Inch Throwaway	X- Front (Standard)
	(Standard)	X- Front (Standard)
	(Standard)	T - Top on WA30 & WA37 Models
	W- 1-Inch Washable	T - Top on WA30 & WA37 Models
	W- 1-Inch Washable
	P - 2-Inch Pleated

NOTE: For 0KW and circuit breakers (230/208 Volt) or pull disconnects (460 Volt) applications, insert 0Z in the KW field of model no.

TABLE 1 – ELECTRICAL SPECIFICATIONS

Maximum

Minimum

External

Field Power

Fuse

No.

Maximum

Circuit

or Ckt.

Wire Size

Ground

External

Field

Ampacity

Breaker

Wire Size

Rated

Field

Minimum

Fuse or

Power

Ground

Volts/

Power

Circuit

Ckt.

Wire

CKT

Models

Phases

Circuits

Ampacity

Breaker

Size

WA302-A0Z

A05

230/208-1

A10

A15

1 or 2

WA302-B0Z

B09

230/208-3

B15

WA302-C0Z

C09

460-3

C15

WA372-A0Z

A05

A08

230/208-1

A10

A15

1 or 2

WA372-B0Z

B06

230/208-3

B09

B15

WA372-C0Z

C06

C09

460-3

C12

C15

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75° copper wire. All wiring must conform to the National Electrical Code and all local codes.

3These "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 three conductors are in a raceway.

Manual	2100-404D
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Page	Manual
19 of 5	404D-2100

TABLE 2

DIMENSIONS OF BASIC UNIT (NOMINAL)

	Width	Depth	Height	Supply		Return
	Width	Depth	Height
Model	(W)	(D)	(H)	A	B	C	B	E	F	G	I	J	K	L	M	N	O	P	Q	R	S	T

WA302	38.20	17.125	70.563	7.88	27.88	13.88	27.88	40.00	18.50	25.75	17.93	26.75	28.75	29.25	27.00	2.75	39.19	22.75	9.14	4.19	12.00	5.00
WA371

FIGURE 1

UNIT DIMENSIONS

FRONT VIEW

SIDE VIEW

BACK VIEW

TABLE 3

ELECTRIC HEAT TABLE

Models		WA302-A				WA302-B			WA302-C
Models		WA372-A				WA372-B			WA372-C
		WA372-A				WA372-B			WA372-C

	240V-1		208V-1		240V-3		208V-3		460V-3

KW	AMPS	BTUH	AMPS	BTUH	AMPS	BTUH	AMPS	BTUH	AMPS	BTUH

5.0	20.8	17,065	18.1	12,800	---	---	---	---	---	---

10.0	41.6	34,130	36.2	25,600	---	---	---	---	---	---

15.0	62.5	51,200	54.1	38,400	---	---	---	---	---	---

6.0	---	---	---	---	14.4	20,500	12.5	15,360	7.2	20,475

9.0	---	---	---	---	21.7	30,600	18.7	23,030	10.8	30,700

15.0	---	---	---	---	36.2	51,200	31.2	38,400	18.0	51,200

12.0	---	---	---	---	---	---	---	---	14.4	40,950

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 3 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.

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