Bard WA381, WA491, WA484, WA423, WA602 User Manual 2
INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE AIR CONDITIONERS
MODELS
WA381
WA423
WA484
WA491
WA602
Bard Manufacturing Company
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Manual : 2100-398
Supersedes:
File: Volume III Tab 16
Date: 01-28-02
© Copyright 2002
Contents
Getting Other Information and Publications 1
Wall Mount General Information
Heat Pump Wall Mount Model Nomenclature .......... 2
Shipping Damage .................................................... 5
General ................................................................ 5
Duct Work................................................................ 6
Filters ................................................................ 6
Fresh Air Intake ....................................................... 6
Condensate Drain.................................................... 6
Installation Instructions
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 6 Wall Mounting Instructions.................... 10
Figure 7 Common Wall Mounting Installations.....11
Figure 8 Unit 24V Terminal Board ....................... 13
Figure 9 Fan Blade Setting ................................. 16
Start Up
Important Installer Note ......................................... 14
High Pressure Switch ............................................ 14
Three Phase Scroll Compressor Start Up ............. 14
Phase Monitor ....................................................... 14
Condenser Fan Operation ..................................... 14
Service Hints ......................................................... 14
Sequence of Operation.......................................... 15
Compressor Control Module.................................. 15
Adjustments........................................................... 15
Pressure Service Ports .......................................... 15
Troubleshooting
Fan Blade Setting Dimensions .............................. 16
Removal of Fan Shroud......................................... 16
Refrigerant Charge ................................................ 16
Pressure Table....................................................... 18
Optional Accessories............................................. 19
Tables
Table 1 Electric Heat Table .................................. 2
Table 2 Electrical Specifications ................ 4 and 5
Table 3 Thermostat Wire Size ........................... 12
Table 4 Wall thermostat and Subbase
Combinations ........................................ 12
Table 5 Fan Blade Dimensions.......................... 16
Table 6 Refrigerant Charge ............................... 16
Table 7 Indoor Blower Performance .................. 16
Table 7A Indoor Blower Performance .................. 17
Table 8 Recommended Air Flow........................ 17
Table 9 Maximum EXP Electric Heat Only........ 17
Table 9A Maximum EXP Electric Heat Only........ 17
Table 10 Pressure Table ...................................... 18
Table 11 Optional Accessories ............................ 19
GETTING OTHER INFORMA TION 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 2100-398
Page 1
W ALL MOUNT GENERAL INFORMATION
HEAT PUMP WALL MOUNT MODEL NOMENCLATURE
MODEL NUMBER
CAPACITY
38 - 3 Ton
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 3 – 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-183AW
A-324AW
sledoM
A-484AW
A-194AW
A-206AW
1-0321-8023-0323-8023-064
WKA UTBAUTBAUTBAUTBA UTB
58.02050711.8100821------------------
6------------4.41005025.21063512.708402
83.33082728.8205402------------------
9------------7.12006037.81030328.0100703
016.14031432.6300652------------------
515.26002150.45004832.63002152.13004833.7100074
81------------3.34034165.7300164------
022.38062861.2700215------------------
B-183AW
B-324AW
B-484AW
B-194AW
B-206AW
C-183AW
C-324AW
C-484AW
C-194AW
C-206AW
Manual 2100-398
Page 2
FIGURE 1
UNIT DIMENSIONS
htdiW
ledoM
)W(
83AW
24AW
84AW
94AW
06AW
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 2100-398
Page 3
FRONT VIEW BACK VIEWSIDE VIEW
MIS-1262
TABLE 2
ELECTRICAL SPECIFICATIONS
TIUCRICELGNIS TIUCRICLAUD
3
.oN
detaR
&stloV
ledoM
Z0A,00A-183AW
50A
80A
01A
Z0B,00B-183AW
60B
90B
Z0C,00C-183AW
60C
90C
Z0A,00A-324AW
50A
01A
51A
02A
Z0B,00B-324AW
90B
51B
81B
Z0C,00C-324AW
90C
51C
Z0A,00A-484AW
50A
01A
51A
02A
Z0B,00B-484AW
90B
51B
81B
Z0C,00C-484AW
90C
51C
Z0A,00A-194AW
50A
80A
01A
Z0B,00B-194AW
60B
90B
Z0C,00C-194AW
60C
01C
esahP
3-064
3-064
3-064
3-064
dleiF
rewoP
stiucriC
1
1
1-802/032
1
1
1
3-802/032
1
1
1
1
1
1
1
1
1-802/032
1
1
3-802/032
1
1
1
1
1
1
1
1
1-802/032
1
1
3-802/032
1
1
1
1
1
1
1
1-802/032
1
1
1
3-802/032
1
1
1
1
1
52
23
74
85
02
42
33
11
31
71
53
53
95
58
2ro1
2ro1
2ro1
2ro1
011
42
43
25
06
31
71
62
63
63
95
58
011
52
43
25
06
31
71
62
33
33
74
85
72
72
33
31
31
71
1
muminiM
tiucriC
yticapmA
2
mumixaM
2
lanretxE
dleiF
roesuF
tiucriC
rekaerB
53
53
05
06
03
03
53
51
51
02
05
05
06
09
011
53
53
05
06
51
02
03
05
05
06
09
011
53
53
06
06
51
02
03
05
05
05
06
04
04
04
51
51
02
rewoP
eriW
eziS
8
8
8
6
01
01
8
41
41
21
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
8
6
8
8
8
41
41
21
dnuorG
eriW
eziS
01
01
01
01
01
01
01
41
41
21
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
01
01
01
01
41
41
21
3
muminiM
tiucriC
yticapmA
ATKCBTKCATKCBTKCATKCBTKCATKCBTKC
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
A/N
A/N
A/N
A/N
A/N
A/N
62
65
25
65
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
62
95
25
95
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
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
1
mumixaM
esuFlanretxE
tiucriCro
rekaerB
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
A/N
A/N
A/N
A/N
A/N
A/N
03
06
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
03
06
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
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
2
rewoPdleiF
eziSeriW
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
6
6
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
6
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
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
A/N
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
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
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
2
dnuorG
eziSeriW
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
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
A/N
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
5EGAPNODEUNITNOCELBAT
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 NEC and all local codes.
l
These “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 3 conductors are in
a raceway.
Manual 2100-398
Page 4
4EGAPMORFDEUNITNOCELBAT
TIUCRICELGNIS TIUCRICLAUD
3
.oN
detaR
&stloV
ledoM
Z0A,00A-206AW
50A
01A
51A
02A
Z0B,00B-206AW
90B
51B
81B
Z0C,00C-206AW
90C
51C
esahP
3-064
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 NEC and all local codes.
l
These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the
dleiF
rewoP
stiucriC
1
1
1
1-802/032
1
1
3-802/032
1
1
1
1
1
44
44
55
58
2ro1
2ro1
011
23
43
25
06
61
71
62
1
muminiM
tiucriC
yticapmA
2
2
mumixaM
lanretxE
dleiF
roesuF
tiucriC
rekaerB
06
06
06
09
011
54
54
06
06
02
02
03
rewoP
eriW
eziS
8
8
6
4
2
8
8
6
6
21
21
01
dnuorG
eriW
eziS
01
01
01
8
6
01
01
01
01
21
21
01
3
muminiM
tiucriC
yticapmA
ATKCBTKCATKCBTKCATKCBTKCATKCBTKC
A/N
A/N
A/N
A/N
A/N
A/N
62
95
25
95
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
1
mumixaM
esuFlanretxE
tiucriCro
rekaerB
A/N
A/N
A/N
A/N
A/N
A/N
03
06
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
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 3 conductors are in
a raceway.
2
rewoPdleiF
eziSeriW
A/N
A/N
A/N
A/N
A/N
A/N
6
6
01
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
2
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
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.
Manual 2100-398
Page 5
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