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

WALL MOUNTED P ACKAGED
AIR CONDITIONER

INSTALLATION
INSTRUCTIONS

Models:

WA611
WA701-B
WA701-C
WA702-A
WA721

Bard Manufacturing Company
Bryan, Ohio 43506

Since 1914...Moving ahead, just as planned.

MIS-801

Manual No.: 2100-425
Supersedes:
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

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

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

Table 1 Electric Heat Table................................. 2

T able 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:

ACC A Air Conditioning Contractors of America

1712 New Hampshire Ave. N.W.
Washington, DC 20009
Telephone: [phone]
Fax: [phone]

ANSI American National Standards Institute

11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]

ASHRAE American Society of Heating Refrigerating,

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.
Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]

NFPA National Fire Protection Association

Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

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 INFORMA TION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

MODEL NUMBER

CAPACITY

61 – 5 Ton
70 – 6 Ton
72 – 6 To n

REVISION

VOL TS & PHASE

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

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

WA 70 1 – B 09 X X X X X J

VENTILATION OPTIONS

X – Barometric Fresh Air Damper

KW

00 – No KW
0Z – No KW

w/Circuit
Breaker
or Pull

Disconnect
05 – 5 KW
09 – 9 KW
10 – 10 KW
15 – 15 KW
18 – 18 KW

(Standard)
B – Blank-off Plate
M – Motorized Fresh Air Damper
V – Commercial Room V entilator -

Motorized with Exhaust
E – Economizer (Internal) - Fully

Modulating with Exhaust
R – Energy Recovery V entilator -

with Exhaust

FILTER OPTIONS

X – One Inch Throwaway
W – One Inch Washable

P – Two Inch Pleated

COLOR OPTIONS

X – Beige

(Standard)

1 – White

(Standard)

COIL OPTIONS

X – Standard
1 – Phenolic Coated Evaporator
2 – Phenolic Coated Condenser
3 – Phenolic Coated Evaporator

CONTROL MODULES

J – Standard on all

Models

and Condenser

OUTLET OPTIONS

X – Front (Standard)

TABLE 1

ELECTRIC HEAT TABLE

sledoM

1-V0421-V8023-V0423-V8023-V064

WKSPMAHUTBSPMAHUTBSPMAHUTBSPMAHUTBSPMAHUTB

0.5

0.8

0.9

0.01

8.02004,811.81001,41------------------

3.33006,828.82008,12------------------

------------7.12009,137.81053,428.01000,23

6.14054,532.63009,62------------------

A-116AWB-116AWC-116AW

sledoM

1-V0421-V8023-V0423-V8023-V064

WKSPMAHUTBSPMAHUTBSPMAHUTBSPMAHUTBSPMAHUTB

0.5

0.9

0.01

0.51

0.81

0.02

8.02050,711.81008,21------------------

------------7.12006,037.81030,328.01007,03

6.14031,432.63006,52------------------

5.26002,151.45004,832.63002,152.13004,833.71000,74

------------3.34034,165.73001,64------

2.38062,861.27002,15------------------

A-207AW

B-107AW
B-127AW

Manual 2100-425
Page 2

C-107AW
C-127AW

TABLE 2

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

htdiW

tinU

W

116AW

07AW

244/1-228/7-498/7-98/7-928/7-518/7-928/7-34918/5-140361/11-24734/3-442/1-244/1-3348/7-3301

127AW

All dimensions in inches.

htpeD

D

thgieH

H

ylppuSnruteR

EFGI J KL MNOPQABCB

FIGURE 1

UNIT DIMENSIONS

Manual 2100-425

Page 3

MIS-764

Manual 2100-425

Page 4

SLEDOMdetaR

Z0A,00A-116AW
50A­80A­01A-

Z0B,00B-116AW
90B-

Z0C,00C-116AW
90C-

Z0A,00A-207AW
50A­01A­51A­02A-

Z0B,00B-107AW
90B­51B­81B-

Z0C,00C-107AW
90C­51C-

Z0B,00B-127AW
90B­51B­81B-

Z0C,00C-127AW
90C­51C-

TABLE 3

ELECTRICAL SPECIFICATIONS

TIUCRICELGNIS TIUCRICLAUD

3

fo.oN
rewoP

stiucriC

1

1-802/302

3-802/032

3-064

1-802/302

3-802/032

3-064

3-802/032

3-064

1
1
1

1
1

1
1

1
1
1

2ro1
2ro1

1
1
1
1

1
1
1

1
1
1
1

1
1
1

muminiM
tiucriC

34
34
74
85

92
33

51
71

84
84
95
58

011

63
63
25
06

71
71
62

63
63
25
06

71
71
62

1

revO

yticapmA

05
05
06
06

54
54

02
02

06
06
06
09

011

05
05
06
06

52
52
03

05
05
06
06

52
52
03

2

mumixaM

dleiF

tnerruC

noitcetorP

eriW
eziS

8
8
8
6

8
8

21
21

8
8

6
4
2

8
8
6
6

21
21
01

8
8
6
6

21
21
01

2

3

tiucriCmuminiM

dnuorG
eriW
eziS

01
01
01
01

01
01

21
21

01
01

01
8
6

01

01

01

01

21

21

01

01

01

01

01

21

21

01

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
95
95

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

yticapmA

ATKCBTKCATKCBTKCATKCBTKCATKCBTKC

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
62
25

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

1

revOmumixaM

tnerruC

noitcetorP

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
06
06

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
03
06

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

2

eziSeriWdleiF

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN

AN
6
6

AN

AN

AN

AN

AN

AN

AN

AN

AN

AN

AN

AN

AN

AN

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
01

6

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

2

eziSeriWdnuorG

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
01
01

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN

AN
AN

AN
AN
AN
01
01

AN
AN
AN
AN

AN
AN
AN

AN
AN
AN
AN

AN
AN
AN

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.
These "Minimum Circuit Ampacity" values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest

l

version), Article 310 for power conductor sizing.
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.

CAUTION: When more than one filed power conductor circuit is run through one

SHIPPING DAMAGE

DUCT WORK

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.

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.

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.

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.

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.

BLOWER DAMPER ASSEMBLY

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.

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

BLADE IS LOCKED
CLOSED FOR
SHIPPING

MIS-938

Manual 2100-425
Page 6