Bard WA702-A, WA721, WA611, WA701-C, WA701-B User Manual

Name: Bard WA702-A
Brand: Bard
SKU: 983950
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WALL MOUNTED PACKAGED

AIR CONDITIONER

INSTALLATION Models: WA611 INSTRUCTIONS WA701-B

WA701-C

WA702-A WA721

MIS-801

Bard Manufacturing Company	Manual No.:	2100-425
Bryan, Ohio 43506	Supersedes:
Since 1914...Moving ahead, just as planned.	File:	Volume III, Tab 16
Since 1914...Moving ahead, just as planned.	Date:	01-01-03
	Date:	01-01-03

CONTENTS

Getting Other Information and Publications
For more information, contact these publishers: .....	1
Wall Mount General Information
Air Conditioner Wall Mount Model Nomenclature ....	2
Shipping Damage ....................................................	5
General ...............................................................	5
Duct Work ...............................................................	5
Filters ...............................................................	6
Fresh Air Intake .......................................................	6
Condensate Drain ....................................................	6
Installation Instructions
Wall Mounting Information .......................................	7
Mounting the Unit ....................................................	7
Typical Installations .................................................	7
Wiring – Main Power .............................................	7
Wiring – Low Voltage Wiring .................................	9

Figures
Figure 1	Unit Dimensions .....................................	3
Figure 2 Blower Damper Assembly ......................		6
Figure 3	Mounting Instructions .............................	8
Figure 4	Wall-Mounting Instructions ..................	10
Figure 5	Wall-Mounting Instructions ..................	10
Figure 6	Common Wall-Mounting Instructions ....	11
Figure 7 Electric Heat Clearances .....................		12
Figure 8	Low Voltage Wiring ..............................	13
Figure 9	Start-Up Label ......................................	14
Figure 10 Fan Blade Setting ................................		17

Start Up
Important Installer Note .........................................	14
Crankcase Heaters ................................................	14
High Pressure Switch ............................................	14
Three Phase Scroll Compressor Start Up
Information .............................................................	14
Service Hints .........................................................	15
Sequence of Operation ..........................................	15
Compressor Control Module ..................................	15
Adjustments ...........................................................	16
Phase Monitor .......................................................	16
Pressure Service Ports ..........................................	16
Troubleshooting
Fan Blade Setting Dimensions ..............................	17
Removal of Fan Shroud .........................................	17
Refrigerant Charge ................................................	17
Pressure Chart ......................................................	18
Optional Accessories .............................................	19

Tables
Table	1	Electric Heat Table .................................	2
Table 2		Dimensions of Basic Unit .......................	3
Table	3	Electrical Specifications .........................	4
Table	4	Operating Voltage Range ......................	9
Table	5	Thermostat Wire Size ............................	9
Table	6	Wall Thermostat and
		Subbase Combinations ..........................	9
Table	7	Fan Blade Dimensions .........................	17
Table	8	Suction Line Temperatures ..................	17
Table	9	CFM and ESP ......................................	17
Table	10	Indoor Blower Performance .................	17
Table	11	Maximum ESP of Operation
		Electric Heat Only ................................	18
Table	12	Cooling Pressure .................................	18
Table	13	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 or
Residential Winter and	Manual N
Summer Air Conditioning
Low Pressure, Low Velocity ..........	ACCA Manual D or
Duct System Design for Winter	Manual Q
and Summer Air Conditioning

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

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

Manual 2100-425

Page 1

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

MODEL NUMBER

CAPACITY

61 – 5 Ton

70 – 6 Ton

72 – 6 Ton

REVISION

VOLTS & PHASE

A – 230/208-1

B – 230/208/60-3 C – 460/60-3

									CONTROL MODULES
WA 70		1 – B 09	X			X	X X X J		J – Standard on all
						X			Models
									Models
								COIL OPTIONS
	VENTILATION OPTIONS							X – Standard
	VENTILATION OPTIONS							1 – Phenolic Coated Evaporator
	X – Barometric Fresh Air Damper							1 – Phenolic Coated Evaporator
	X – Barometric Fresh Air Damper							2 – Phenolic Coated Condenser
		(Standard)						2 – Phenolic Coated Condenser
KW		(Standard)						3 – Phenolic Coated Evaporator
KW	B –	Blank-off Plate						3 – Phenolic Coated Evaporator
00 – No KW	B –	Blank-off Plate						and Condenser
00 – No KW	M – Motorized Fresh Air Damper							and Condenser
0Z – No KW	M – Motorized Fresh Air Damper					COLOR OPTIONS
0Z – No KW	V – Commercial Room Ventilator -					COLOR OPTIONS
w/Circuit	V – Commercial Room Ventilator -					X – Beige
w/Circuit		Motorized with Exhaust				X – Beige
Breaker		Motorized with Exhaust				(Standard)
Breaker	E –	Economizer (Internal) - Fully				(Standard)
or Pull	E –	Economizer (Internal) - Fully				1 – White
or Pull		Modulating with Exhaust				1 – White
Disconnect		Modulating with Exhaust
Disconnect	R –	Energy Recovery Ventilator -
05 – 5 KW	R –	Energy Recovery Ventilator -
09 – 9 KW		with Exhaust	FILTER			OPTIONS
10 – 10 KW			X	– One Inch Throwaway				OUTLET OPTIONS
15 – 15 KW					(Standard)			OUTLET OPTIONS
15 – 15 KW					(Standard)			X – Front (Standard)
18 – 18 KW			W – One Inch Washable					X – Front (Standard)
18 – 18 KW			W – One Inch Washable
			P	– Two Inch Pleated

NOTE: For 0KW and circuit breakers (230/208 V) or pull disconnects (460 V) applications, insert 0Z in the KW field of model number.

TABLE 1

ELECTRIC HEAT TABLE

Models		WA611-A				WA611-B			WA611-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	18,400	18.1	14,100	---	---	---	---	---	---
8.0	33.3	28,600	28.8	21,800	---	---	---	---	---	---
9.0	---	---	---	---	21.7	31,900	18.7	24,350	10.8	32,000
10.0	41.6	35,450	36.2	26,900	---	---	---	---	---	---

Models		WA702-A				WA701-B			WA701-C
		WA702-A				WA721-B			WA721-C
						WA721-B			WA721-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	17,050	18.1	12,800	---	---	---	---	---	---
9.0	---	---	---	---	21.7	30,600	18.7	23,030	10.8	30,700
10.0	41.6	34,130	36.2	25,600	---	---	---	---	---	---
15.0	62.5	51,200	54.1	38,400	36.2	51,200	31.2	38,400	17.3	47,000
18.0	---	---	---	---	43.3	61,430	37.5	46,100	---	---
20.0	83.2	68,260	72.1	51,200	---	---	---	---	---	---

Manual 2100-425

Page 2

Bard WA702-A, WA721, WA611, WA701-C, WA701-B User Manual

Page	Manual
3
	425-2100

TABLE 2

DIMENSIONS OF BASIC UNIT FOR ARCHITECTURAL AND INSTALLATION REQUIREMENTS (Nominal)

Width

Depth

Height

Supply

Return

Unit

WA611

WA70

22-1/4

94-7/8

9-7/8

29-7/8

15-7/8

29-7/8

43-7/8

41-5/8

42-11/16

44-3/4

42-1/2

3-1/4

33-7/8

WA721

All dimensions in inches.

FIGURE 1

UNIT DIMENSIONS

MIS-764

Page	Manual
4	425-2100

TABLE 3

ELECTRICAL SPECIFICATIONS

SINGLE CIRCUIT

DUAL CIRCUIT

Maximum

Minimum Circuit

Maximum Over

No. of

Minimum

Field

Ground

Current

Field Wire Size

Ground Wire Size

Over

Ampacity

Protection

Power

Circuit

Current

Wire

MODELS

Rated

Circuits

Ampacity

Protection

Size

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

CKT A

CKT B

WA611-A00,A0Z

-A05

203/208-1

-A08

-A10

WA611-B00,B0Z

230/208-3

-B09

WA611-C00, C0Z

460-3

-C09

WA702-A00,A0Z

-A05

-A10

203/208-1

-A15

1 or 2

-A20

1 or 2

110

WA701-B00,B0Z

-B09

230/208-3

-B15

-B18

WA701-C00,C0Z

-C09

460-3

-C15

WA721-B00,B0Z

-B09

230/208-3

-B15

-B18

WA721-C00,C0Z

-C09

460-3

-C15

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 the National Electric Code (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 version), Article 310 for power conductor sizing. CAUTION: When more than one filed power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to Note * 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.

DUCT WORK

All duct work, supply and return, must be properly sized for the design air flow requirement of the equipment. Air Conditioning Contractors of America (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.

Refer to Table 9 for maximum static pressure available for duct design.

Design the duct work according to methods given by the Air Conditioning Contractors of America (ACCA). When duct runs through unheated spaces, it should be insulated with a minimum of 1 inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

A 1/4 inch clearance to combustible material for the first three feet of duct attached to the outlet air frame is required. See Wall Mounting Instructions and Figures 4 and 5 for further details.

Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity.

CAUTION

Some installations may not require any return air duct. A metallic return air grille is required with installations not requiring a return air duct. The spacing between louvers on the grille shall not be larger than 5/8 inches.

Any grille that meets the 5/8 inch louver criteria, may be used. It is recommended that Bard Return Air Grille Kit RG-2 thru RG-5 or RFG-2 thru RFG-5 be installed when no return duct is used. Contact distributor or factory for ordering information. If using a return air filter grille, filters must be of sufficient size to allow a maximum velocity of 400 fpm.

NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to installation only in a single story structure.

Manual 2100-425

Page 5

FILTERS

A 1 inch throwaway filter is supplied with each unit. The filter slides into position making it easy to service. This filter can be serviced from the outside by removing the service door. A 1 inch washable filter and 2 inch pleated filter are also available as optional accessories. The internal filter brackets are adjustable to accommodate the 2 inch filter by bending down the tabs to allow spacing for the 2 inch filters.

All capacity, efficiency and cost of operation information as required for Department of Energy “Energyguide” Fact Sheets is based upon the fresh air blank-off plate in place and is recommended for maximum energy efficiency.

The blank-off plate is available upon request from the factory and is installed in place of the fresh air damper shipped with each unit.

FRESH AIR INTAKE

All units are built with fresh air inlet slots punched in the service panel.

If the unit is equipped with the fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position to allow the damper to operate, the maximum and minium blade position stops must be installed. See Figure 2.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type system to assure proper drainage.

FIGURE 2

BLOWER DAMPER ASSEMBLY

BLADE IS LOCKED

CLOSED FOR

SHIPPING

MIS-938

Manual 2100-425

Page 6

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