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

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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

Date:

01-01-03

 

© Copyright 2003

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

i

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

 

 

Models

 

 

 

 

 

 

 

 

 

 

COIL OPTIONS

 

VENTILATION OPTIONS

 

 

 

 

 

X – Standard

 

 

 

 

 

 

1 – Phenolic Coated Evaporator

 

X – Barometric Fresh Air Damper

 

 

 

 

 

 

 

2 – Phenolic Coated Condenser

 

 

(Standard)

 

 

 

 

 

KW

 

 

 

 

 

 

3 – Phenolic Coated Evaporator

B –

Blank-off Plate

 

 

 

 

 

00 – No KW

 

 

 

 

 

and Condenser

M – Motorized Fresh Air Damper

 

 

 

 

0Z – No KW

 

 

COLOR OPTIONS

 

 

V – Commercial Room Ventilator -

 

 

 

w/Circuit

 

X – Beige

 

 

 

Motorized with Exhaust

 

 

 

 

 

Breaker

 

 

 

 

(Standard)

 

 

E –

Economizer (Internal) - Fully

 

 

 

 

or Pull

 

 

1 – White

 

 

 

Modulating with Exhaust

 

 

 

 

 

Disconnect

 

 

 

 

 

 

 

 

R –

Energy Recovery Ventilator -

 

 

 

 

 

 

05 – 5 KW

 

 

 

 

 

 

09 – 9 KW

 

with Exhaust

FILTER

OPTIONS

 

 

10 – 10 KW

 

 

X

– One Inch Throwaway

OUTLET OPTIONS

15 – 15 KW

 

 

 

 

(Standard)

 

 

 

 

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

 

 

 

 

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

Page

Manual

3

 

 

425-2100

TABLE 2

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

 

Width

Depth

Height

Supply

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit

W

D

H

A

B

C

B

E

F

G

I

J

K

L

M

N

O

P

Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA611

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WA70

42

22-1/4

94-7/8

9-7/8

29-7/8

15-7/8

29-7/8

43-7/8

19

41-5/8

30

42-11/16

37

44-3/4

42-1/2

3-1/4

43

33-7/8

10

WA721

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All dimensions in inches.

FIGURE 1

UNIT DIMENSIONS

MIS-764

Page

Manual

4

425-2100

TABLE 3

ELECTRICAL SPECIFICATIONS

SINGLE CIRCUIT

DUAL CIRCUIT

 

 

 

3

1

2

2

 

3

 

1

 

2

 

2

 

 

 

 

Maximum

 

 

Minimum Circuit

Maximum Over

 

 

 

 

 

 

 

 

No. of

Minimum

Field

Ground

Current

Field Wire Size

Ground Wire Size

 

 

Over

Ampacity

Protection

 

 

Power

Circuit

Current

Wire

Wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODELS

Rated

Circuits

Ampacity

Protection

Size

Size

CKT A

 

CKT B

CKT A

 

CKT B

CKT A

 

CKT B

CKT A

 

CKT B

WA611-A00,A0Z

 

1

43

50

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-A05

203/208-1

1

43

50

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-A08

1

47

60

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

 

 

 

 

 

-A10

 

1

58

60

6

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

WA611-B00,B0Z

230/208-3

1

29

45

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-B09

1

33

45

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

 

 

 

 

 

WA611-C00, C0Z

460-3

1

15

20

12

12

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-C09

1

17

20

12

12

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

 

 

 

 

 

WA702-A00,A0Z

 

1

48

60

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-A05

 

1

48

60

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-A10

203/208-1

1

59

60

6

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-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

WA701-B00,B0Z

 

1

36

50

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-B09

230/208-3

1

36

50

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-B15

1

52

60

6

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

 

 

 

 

 

-B18

 

1

60

60

6

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

WA701-C00,C0Z

 

1

17

25

12

12

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-C09

460-3

1

17

25

12

12

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-C15

 

1

26

30

10

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

WA721-B00,B0Z

 

1

36

50

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-B09

230/208-3

1

36

50

8

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-B15

1

52

60

6

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

 

 

 

 

 

-B18

 

1

60

60

6

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

WA721-C00,C0Z

 

1

17

25

12

12

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-C09

460-3

1

17

25

12

12

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

-C15

 

1

26

30

10

10

NA

 

NA

NA

 

NA

NA

 

NA

NA

 

NA

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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