Bard WA602 User Manual
INST ALLA TION INSTRUCTIONS
W ALL MOUNTED
P ACKAGE AIR CONDITIONERS
MODELS
WA421
WA482
WA602
Bard Manufacturing Company
Bryan, Ohio 43506
Since 1914...Moving ahead, just
as planned.
Manual : 2100-218I
Supersedes: 2100-218H
File: Volume III Tab 16
Date: 04-19-99
© Copyright 1999
Contents
Getting Other Information and Publications .......... 1
Wall Mount General Information ............................. 2
Heat Pump Wall Mount Model Nomenclature.......... 2
Shipping Damage .................................................... 5
General ................................................................ 5
Duct Work................................................................ 5
Filters ................................................................ 6
Fresh Air Intake........................................................ 6
Condensate Drain .................................................... 6
Installation Instructions ........................................... 7
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 5 Wall Mounting Instructions..................... 10
Figure 7 Common Wall Mounting Installations......11
Figure 8 Unit 24V Terminal Board ....................... 13
Figure 9 Starting Procedure ................................ 14
Figure 10 Fan Blade Setting.................................. 17
Start Up ................................................................... 14
Important Installer Note.......................................... 14
Crankcase Heaters ................................................ 14
High Pressure Switch............................................. 14
Three Phase Scroll Compressor Start Up.............. 14
Condenser Fan Operation...................................... 14
Service Hints.......................................................... 15
Sequence of Operation.......................................... 15
Compressor Control Module .................................. 15
Adjustments ........................................................... 15
Phase Monitor........................................................ 16
Pressure Service Ports .......................................... 16
Troubleshooting ..................................................... 17
Fan Blade Setting Dimensions ............................... 17
Removal of Fan Shroud......................................... 17
Refrigerant Charge ................................................ 17
Pressure T able....................................................... 18
Optional Accessories ............................................. 19
Tables
Table 1 Electric Heat Table .................................. 2
Table 2 Electrical Specifications........................... 4
Table 3 Thermostat Wire Size ........................... 12
Table 4 Wall thermostat and Subbase
Combinations ........................................ 12
T able 5 Fan Blade Dimensions .......................... 17
Table 6 Refrigerant Charge ............................... 17
Table 7 Indoor Blower Performance .................. 17
Table 8 Recommended Air Flow........................ 18
Table 9 Maximum EXP Electric Heat Only........ 18
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; 4,432,409
Manual 2100-218
Page 1
WALL MOUNT GENERAL INFORMATION
HEAT PUMP WALL MOUNT MODEL NOMENCLATURE
MODEL NUMBER
CAPACITY
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
NOTE: All vent options are without exhaust capability. May require separate field supplied barometric relief in building.
REVISIONS
WA 42 1 – A 10 X N X X X A
COLOR OPTIONS
X - Beige (Standard)
1 - White
KW
VENTILATION OPTIONS
X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
M - Motorized Fresh Air Damper
V - Commercial Ventilator -
Motorized with Exhaust
E - Economizer (Internal) - Fully
Modulating with Exhaust
R - Energy Recovery Ventilator -
Motorized with Exhaust
2 - Mesa Tan
4 - Buckeye Gray
5 - Desert Brown
6 - Dark Bronze
FILTER OPTIONS
X - One Inch Throwaway (Standard)
W- One Inch Washable
P - Two Inch Pleated
CONTROL MODULES
(See Chart Below)
COIL OPTIONS
X - Standard
1 - Phenolic Coated Evaporator
2 - Phenolic Coated Condenser
3 - Phenolic Coated Evaporator
and Condenser
OUTLET OPTIONS
X - Front (Standard)
TABLE 1
ELECTRIC HEAT TABLE
A-124AW
sledoM
A-284AW
A-206AW
1-0421-8023-0423-8023-064
WKAUTBAUTBAUTBAUTBAUTB
58.02050711.8100821
97.12006037.81030328.0100703
016.14031432.6300652
515.26002150.45004832.63002152.13004833.7100074
813.34034165.7300164
022.38062861.2700215
B-124AW
B-284AW
B-206AW
C-124AW
C-284AW
C-206AW
Manual 2100-218
Page 2
FIGURE 1
UNIT DIMENSIONS
htdiW
ledoM
)W(
24AW
84AW
570.24234.22578.4888.988.9288.5188.9288.3401.9166.1300.0386.2349.6296.4334.2373.388.2488.3200.0144.100.6188.1
htpeD
)D(
thgieH
)H(
ylppuSnruteR
EFGIJKLMNOPQRSTABCB
Manual 2100-218
Page 3
FRONT VIEW BACK VIEWSIDE VIEW
Optional top outlet (factory installed only) for WA30 and WA36 models only.
*
MIS-1262
TABLE 2
ELECTRICAL SPECIFICATIONS
TIUCRICELGNIS TIUCRICLAUD
➀
➁
➂
detaR
&stloV
ledoM
Z0A,00A-124AW
50A
01A
51A
02A
Z0B,00B-124AW
90B
51B
81B
Z0C,00C-124AW
90C
51C
Z0A,00A-284AW
50A
01A
51A
02A
Z0B,00B-284AW
90B
51B
81B
Z0C,00C-281AW
90C
51C
Z0A,00A-206AW
50A
01A
51A
02A
Z0B,00B-206AW
90B
51B
81B
Z0C,00C-203AW
90C
51C
esahP
3-064
3-064
3-064
dleiF
rewoP
stiucriC
1
1
1-802/032
1
2ro1
2ro1
1
1
3-802/032
1
1
1
1
1
1
1
1-802/032
1
2ro1
2ro1
1
1
3-802/032
1
1
1
1
1
1
1
1-802/032
1
2ro1
2ro1
1
1
3-802/032
1
1
1
1
1
muminiM
tiucriC
yticapmA
33
33
95
58
011
42
43
25
06
21
71
62
83
83
95
58
011
62
43
25
06
31
71
62
44
44
55
58
011
23
43
25
06
61
71
62
mumixaM
lanretxE
roesuF
tiucriC
rekaerB
05
05
06
09
011
53
53
05
06
51
02
03
05
05
06
09
011
53
53
06
06
51
02
03
06
06
06
09
011
54
54
06
06
02
02
03
➁
dleiF
rewoP
eriW
eziS
8
8
6
4
2
8
8
6
6
41
21
01
8
8
6
4
2
8
8
6
6
41
21
01
8
8
6
4
2
8
8
6
6
21
21
01
dnuorG
eriW
eziS
01
01
01
8
6
01
01
01
01
41
21
01
01
01
01
8
6
01
01
01
01
41
21
01
01
01
01
8
6
01
01
01
01
21
21
01
➂
muminiM
tiucriC
yticapmA
ATKCBTKCATKCBTKCATKCBTKCATKCBTKC
A/N
A/N
A/N
A/N
A/N
A/N
65
62
65
25
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
95
62
95
25
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
95
62
95
25
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
➀
mumixaM
esuFlanretxE
A/N
A/N
A/N
A/N
A/N
A/N
06
03
06
06
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
06
03
06
06
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
06
03
06
06
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
➁
rewoPdleiF
eziSeriW
A/N
A/N
A/N
A/N
A/N
A/N
6
01
6
6
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
6
01
6
6
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
6
01
6
6
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
➁
dnuorG
eziSeriW
A/N
A/N
A/N
A/N
A/N
A/N
01
01
01
01
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
01
01
01
01
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
01
01
01
01
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.
➀
Based on 75° C copper wire. All wiring must conform to NEC and all local codes.
➁
These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the
➂
National Electric Code (latest revision), article 310 for power conductor sizing.
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 2100-218
Page 4
CAUTION: When more than
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 10 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 one 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 3
and 4 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.
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 inch.
Any grille that meets with 5/8 inch louver criteria may be
used. It is recommended that Bard Return Air Grille Kit
RG2 through RG5 or RFG2 through RFG5 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 2100-218
Page 5
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