Form No. S3208-607 Supersedes S3208-206 Page 1 of 12 THE WALL-MOUNT™ AIR CONDITIONERS - WA (60HZ) Aluminum Finned Copper Coils: Grooved tubing and enhanced louvered fin for maximum heat transfer and energy efficiency. Twin Blowers: Move air quietly. Most models feature multispeed blower motors providing airflow adjustment for high and low static operation. Motor overload protection is standard on all models. Air Conditioner Compressor: Reciprocating compressors with crankcase heater and dual discharge muffler are standard on 1.5 and 2 ton models. Scroll Compressors eliminate need for crankcase heater. Standard on 2.5 to 5 ton, and available on 2 ton models. Phase Rotation Monitor: Standard on all 3 phase scroll compressors. Protects against reverse rotation if power supply is not properly connected. Not required on reciprocating compressors. Galvanized 20 Gauge Zinc Coated Steel Cabinet: Cleaned, rinsed, sealed and dried before the polyurethane primer is applied. The cabinet is handsomely finished with a baked on textured enamel, which allows it to withstand 1000 hours of salt spray tests per ASTM B117-03. Electrical Components: Are easily accessible for routine inspection and maintenance through a right side, service panel opening. Features a lockable, hinged access cover to the circuit breaker or pull disconnect switch. Electric Heat Strips: Features an automatic limit and thermal cut-off safety control. Heater packages can be factory or field installed for all 1.5 through 5 ton models. One Inch, Disposable Air Filters: Are standard equipment. Optional one inch washable filters available and filter racks permit the addition of 2" pleated filter. Factory or field installed. Condenser Fan and Motor Shroud Assembly: Slides out for easy access. Barometric Fresh Air Damper: Standard on all units. Allows up to 25% outside fresh air. Built-in Circuit Breakers: Standard on all electric heat versions of single (230/208 volt) and three phase (230/208 volt) equipment. Toggle disconnects are standard on all electric heat versions of three phase (460 volt) equipment. Slope Top: Standard feature for water run-off. Full Length Mounting Brackets: Built into cabinet for improved appearance and easy installation. NOTE: Bottom mounting bracket included to assist in installation. Top Rain Flashing: Standard feature on all models. All packages are designed to meet your specific ventilation requirements utilizing one of five ventilation options for the product. The ventilation package is mounted within the unit eliminating the need for an exterior mounted hood or damper assembly on the unit. All assemblies can be factory installed, installed in the field at time of installation or as a retrofit system after installation. Standard - Barometric Fresh Air Damper Optional - Motorized Fresh Air Damper Optional - Blank off Plate Optional - Commercial Room Ventilator w/Exhaust • CRV - Spring Return • CRVP - Power Return Optional - Economizer w/ Exhaust Optional - Energy Recovery Ventilator Engineered Features The Bard Wall-Mount Air Conditioner is a self contained energy efficient system, which is designed to offer maximum indoor comfort at a minimal cost without using valuable indoor floor space or outside ground space. This unit is the ideal product for versatile applications such as: new construction, modular offices, school modernization, telecommunication structures, portable structures or correctional facilities. Factory or field installed accessories are available to meet specific job requirements. Ventilation System Packages WA-SERIES Refrigerant 22 60Hz 1.5 to 5 Ton (18,300 to 57,500 Btuh) Right Side Control Panel • Complies with efficiency requirements of ASHRAE/IESNA 90.1-2004. • Certified to ANSI/ARI Standard 390-2003 for SPVU (Single Package Vertical Units). • Commercial Product - Not intended for Residential application. MEA # 357-93-E
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Form No. S3208-607Supersedes S3208-206Page 1 of 12
THE WALL-MOUNT™ AIR CONDITIONERS - WA (60HZ)
Aluminum Finned Copper Coils:
Grooved tubing and enhanced louvered
fin for maximum heat transfer and
energy efficiency.
Twin Blowers:
Move air quietly. Most models feature
multispeed blower motors providing
airflow adjustment for high and low
static operation. Motor overload
protection is standard on all models.
Air Conditioner Compressor:
Reciprocating compressors with
crankcase heater and dual discharge
muffler are standard on 1.5 and 2 ton
models.
Scroll Compressors eliminate need for
crankcase heater. Standard on 2.5 to
5 ton, and available on 2 ton models.
Phase Rotation Monitor:
Standard on all 3 phase scroll
compressors. Protects against reverse
rotation if power supply is not properly
connected. Not required on
reciprocating compressors.
Galvanized 20 Gauge Zinc Coated
Steel Cabinet:
Cleaned, rinsed, sealed and dried
before the polyurethane primer is
applied. The cabinet is handsomely
finished with a baked on textured
enamel, which allows it to withstand
1000 hours of salt spray tests per
ASTM B117-03.
Electrical Components:
Are easily accessible for routine
inspection and maintenance through a
right side, service panel opening.
Features a lockable, hinged access
cover to the circuit breaker or pull
disconnect switch.
Electric Heat Strips:
Features an automatic limit and thermal
cut-off safety control. Heater packages
can be factory or field installed for all 1.5
through 5 ton models.
One Inch, Disposable Air Filters:
Are standard equipment. Optional one
inch washable filters available and filter
racks permit the addition of 2" pleated
filter. Factory or field installed.
Condenser Fan and Motor
Shroud Assembly:
Slides out for easy access.
Barometric Fresh Air Damper:
Standard on all units. Allows up to 25%
outside fresh air.
Built-in Circuit Breakers:
Standard on all electric heat versions of
single (230/208 volt) and three phase
(230/208 volt) equipment. Toggle
disconnects are standard on all electric
heat versions of three phase (460 volt)
equipment.
Slope Top:
Standard feature for water run-off.
Full Length Mounting Brackets:
Built into cabinet for improved
appearance and easy installation.
NOTE: Bottom mounting bracket
included to assist in installation.
Top Rain Flashing:
Standard feature on all models.
All packages are
designed to meet your
specific ventilation
requirements utilizing one
of five ventilation
options for the product.
The ventilation package is
mounted within the unit
eliminating the need for
an exterior mounted hood
or damper assembly on
the unit. All assemblies
can be factory installed,
installed in the field at
time of installation or as a
retrofit system after
installation.
� Standard - Barometric
Fresh Air Damper
� Optional - Motorized
Fresh Air Damper
� Optional - Blank off
Plate
� Optional - Commercial
Room Ventilator w/Exhaust
• CRV - Spring Return
• CRVP - Power Return
� Optional - Economizer w/
Exhaust
� Optional - Energy
Recovery Ventilator
Engineered Features
The Bard Wall-Mount Air Conditioner is a self contained energy efficient
system, which is designed to offer maximum indoor comfort at a minimal
cost without using valuable indoor floor space or outside ground space.
This unit is the ideal product for versatile applications such as: new
construction, modular offices, school modernization, telecommunication
structures, portable structures or correctional facilities. Factory or field
installed accessories are available to meet specific job requirements.
Ventilation System Packages
WA-SERIES Refrigerant 22 60Hz 1.5 to 5 Ton (18,300 to 57,500 Btuh) Right Side Control Panel
•Complies with efficiency requirements of ASHRAE/IESNA 90.1-2004.
•Certified to ANSI/ARI Standard 390-2003 for SPVU (Single Package Vertical Units).
•Commercial Product - Not intended for Residential application.
MEA # 357-93-E
Form No. S3208-607Supersedes S3208-206Page 12 of 12
*Optional top outlet (factory installed only) for WA30 and WA37 models only.
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Since 1914 . . . Moving ahead,
just as planned
Due to our continuous product improvement policy,
all specifications subject to change without notice.
Before purchasing this appliance, read important energy cost
and efficiency information available from your retailer.
All dimensions are in inches. Dimensional drawings are not to scale.
NOTE: For side by side installation of two (2) WA models there
must be 20" between units. This can be reduced to 15" by using a
WL model (left side compressor and controls) for the left unit and
WA (right side compressor and controls) for right unit.
See WL Specifications S3279.
1 Refer to the Installation Manual for more detailed information.
The barometric fresh air damper is a standard feature on all models. It is installed on the inside of the service
door and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the
air inlet openings and to be mixed with the conditioned air. The damper opens during blower operation and
closes when the blower is off. Adjustable blade stops allow different amounts of outside air to be introduced into
the building and can be easily locked closed if required.
BLANK OFF PLATE - BOP OPTIONALA blank off plate is installed on the inside of the service door. It covers the air inlet openings, which restricts any
outside air from entering the unit. The blank off plate should be utilized in applications where outside air is not
required to be mixed with the conditioned air.
MOTORIZED FRESH AIR DAMPER - MFAD OPTIONALThe motorized fresh air damper is internally mounted behind the service door and allows outside ventilation air,
up to 25% of the total airflow rating of the unit, to be introduced through the air inlet openings and to be mixed
with the conditioned air. The two position damper can be fully open or closed. The damper blade is powered
open by a 24VAC motor with spring return on power loss. The damper can be controlled by indoor blower
operation or can be field connected to be managed based on building occupancy.
COMMERCIAL ROOM VENTILATOR - CRV OPTIONALThe built-in commercial room ventilator is internally mounted behind the service door and allows outside
ventilation air, up to 50% of the total airflow rating of the unit, to be introduced through the air inlet openings.
It includes a built-in exhaust air damper.
The commercial room ventilator (CRV) is a simple and innovative approach to improving the indoor air quality by
providing fresh air intake and exhaust capability through the CRV. The damper can be easily adjusted to control the
amount of fresh air supplied into the building. The CRV can be controlled by indoor blower operation or field controlled
based on room occupancy. Two versions available (except on 1.5 and 2-Ton models). The CRV and CRVS are
power open - spring return on power loss, and CRVP is power open and power close. Complies with ANSI/ASHRAE
Standard 62.1 “Ventilation for Acceptable Indoor Air Quality”.
ECONOMIZER - EIFM OPTIONALThe built-in economizer system is internally mounted behind the service door and allows outdoor air to be
introduced through the air inlet openings. The amount of outdoor air varies in response to the system controls and
settings defined by the end user. It includes a built-in exhaust air damper. The economizer is designed to provide
“free cooling” when outside air conditions are cool and dry enough to satisfy cooling requirements without running
the compressor. This in turn provides lower operating costs, while extending the life of the compressor.
Standard Features:
• One Piece Construction - Easy to install with no mechanical linkage adjustment required.
• Exhaust Air Damper - Built in with positive closed position. Provides exhaust air capability to prevent
pressurization of tight buildings.
• Actuator Motor - 24 volt, power open, spring return with built in torque limiting switch.
• Proportioning Type Control - for maximum “free cooling” economy and comfort.
• Enthalpy Control - adjustable to monitor outdoor temperature and humidity.
• Minimum Position Potentiometer - adjustable to control minimum damper blade position for ventilation
purposes.
• Mixed Air Sensor - to monitor outside and return air to automatically modulate damper position.
WALL-MOUNT ENERGY RECOVERY VENTILATOR - WERV OPTIONALThe wall-mount energy recovery ventilator (WERV) is a highly innovative approach to meeting indoor air quality
ventilation requirements as established by ANSI/ASHRAE Standard 62.1. The WERV allows from 200 to 450
CFM (depending upon model) of fresh air and exhaust through the unit while maintaining superior indoor comfort
and humidity levels. In most cases this can be accomplished without increasing equipment sizing or operating
costs. Heat transfer efficiency is up to 67% during summer and 75% during winter conditions.
The WERV consists of a unique “rotary energy recovery cassette” that provides effective sensible and latent heat
transfer capabilities during summer and winter conditions. Various control schemes are addressed including
limiting ventilation during building occupancy only.
The WERV is designed to be internally mounted behind the service door in the WA, WH or WL model wall-mount
units. It can be built-in at the factory or field installed as an option. WERV-*3C and WERV-*5C can be
independently adjusted for intake and exhaust rates.
Ventilation System Packages
NOTE: The above vent systems are intake only without built-in exhaust capability. Building will likely require
separate field installed barometric relief or mechanical exhaust elsewhere within the conditioned space. Balancing
dampers in the return air grille may be required to achieve specified amount of outdoor air intake.
Form No. S3208-607Supersedes S3208-206Page 4 of 12
WA
18
, W
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4 &
WA
25
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Form No. S3208-607Supersedes S3208-206Page 5 of 12
Co
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Form No. S3208-607Supersedes S3208-206Page 6 of 12
Form No. S3208-607Supersedes S3208-206Page 7 of 12
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00279
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21562156
0
5608541
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005121
051210
81088108
00279
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21562156
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0809513
0512104491
335027987
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5210100261
473712866
2960106012
001806921
011417245
3868
5756412
051214139
259317987
450678871
521012677
508112866
321501341
00180126
78597245
0614
0725321
05121202
92087987
13139201
52101861
39762866
1115328
0018531
71557245
09
5605121
051210
79877987
052101
521010
28662866
00018
00180
72457245
0
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79877987
052101
521010
28662866
00018
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59
0809513
027907812
335028136
5124152362
001852281
473715435
8202106012
084608541
011411434
8679
5756412
027944711
259318136
436778871
00187879
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39765435
74415328
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560279
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Form No. S3208-607Supersedes S3208-206Page 8 of 12
1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.
2 Based on 75C copper wire. All wiring must conform to the National Electrical Code and all local codes.
3 These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for
power conductor sizing.
Caution: When more than one field power 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 three (3) current carrying conductors are in a raceway.
* Top outlet supply option is available only factory installed and only on the selected models.
IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the
National Electrical Code and all local codes.
tiucriCelgniS tiucriClauD
ledoMdetaRstloV
esahPdna
dleiF.oNrewoPstiucriC
3 muminiMtiucriCyticapmA
1 mumixaMesuFlanretxE.rkrB.tkCro
2 dleiFrewoPeziSeriW
2 dnuorGeriW
3 muminiMtiucriCyticapmA
1 mumixaMesuFlanretxE.rkrB.tkCro
2 dleiFrewoPeziSeriW
2 dnuorGeziSeriW
A.tkC B.tkC A.tkC B.tkC A.tkC B.tkC A.tkC B.tkC
Z0A,00A-281AW50A80A01A
1-802/032
1111
61035465
02035406
210186
21010101
Z0A,00A-242AW50A80A01A
1-802/032
1111
71035465
02035406
210186
21010101
Z0B,00B-242AW60B
3-802/03211
3122
5152
4101
2101
Z0C,00C-242AW60C
3-06411
811
5151
4141
4141
Z0A,00A-352AW50A80A01A
1-802/032
1111
81035465
52035406
010186
01010101
Z0B,00B-352AW60B
3-802/03211
4122
0252
2101
2101
*Z0A,*00A-203AW*50A
80A*01A
51A
1-802/032
1111
2ro1
4213747538
5353050609
88864
010101018 75 62 06 03 6 01 01 01
*Z0B,*00B-203AW60B*90B
51B
3-802/0321111
71322305
02525305
210188
21010101
*Z0C,*00C-203AW60C*90C
51C
3-064
1111
01217162
51510203
41412101
41412101
*Z0A,*00A-273AW*50A
80A*01A
51A
1-802/032
1111
2ro1
8223748548
5353050609
88864
010101018 75 62 06 03 6 01 01 01
*Z0B,*00B-273AW60B*90B
51B
3-802/032
1111
02423315
52525306
010186
01010101
*Z0C,*00C-273AW60C*90C
51C
3-064
1111
11217162
51510203
41410101
41410101
Z0A,00A-324AW50A01A51A02A
1-802/032
111
2ro12ro1
53539558011
05050609011
88642
01010186
9595
6225
0606
0306
66
016
0101
0101
Z0B,00B-324AW90B51B81B
3-802/032
1111
42432506
53530606
8866
01010101
Z0C,00C-324AW90C51C
3-064111
317162
510203
412101
412101
Z0A,00A-484AW50A01A51A02A
1-802/032
111
2ro12ro1
63639558011
05050609011
88642
01010186
9595
6225
0606
0306
66
016
0101
0101
Z0B,00B-484AW90B51B81B
3-802/032
1111
52432506
53530606
8866
01010101
Z0C,00C-484AW90C51C
3-064111
317162
510203
412101
412101
Z0A,00A-206AW50A01A51A02A
1-802/032
111
2ro12ro1
44449558011
06060609011
88642
01010186
9595
6225
0606
0306
66
016
0101
0101
Z0B,00B-206AW90B51B81B
3-802/032
1111
23432506
54540606
8866
01010101
Z0C,00C-206AW90C51C
3-064111
617162
020203
212101
212101
Electrical Specifications
Form No. S3208-607Supersedes S3208-206Page 9 of 12
Above data is with 1" standard throwaway filter and 1" washable filter.
For optional 2" pleated filter - reduce ESP by .15 in.
See installation instructions for maximum ESP information on various KW application.
NOTE: Field installed Heater Packages are not approved for use with top supply opening models.
Indoor Blower Performance - CFM at 230 or 460 Volts
Electric Heat Table - Refer to Electrical Specifications for Availability by Unit Model
Form No. S3208-607Supersedes S3208-206Page 10 of 12
1 Below 65oF (18.3C), unit requires a factory or field installed low ambient control.
2 Return air temperature.
ledoM.B.W/.B.D
2
gnilooCyticapaC
57 oF 08 oF 58 oF 09 oF 59 oF 001 oF 501 oF 011 oF 511 oF 021 oF 521 oF
281AW
/5726
gnilooClatoTgnilooCelbisneS
006,91528,41
576,81007,41
527,71574,41
528,61091,41
529,51038,31
050,51093,31
571,41088,21
523,31003,21
005,21046,11
007,11007,01
001,11051,01
/0876
gnilooClatoTgnilooCelbisneS
579,02526,41
063,02564,41
017,91003,41
020,91531,41
003,81079,31
045,71046,31
057,61032,31
029,51027,21
060,51521,21
004,41006,11
008,31000,11
/5827
gnilooClatoTgnilooCelbisneS
059,42057,41
087,32026,41
026,22004,41
064,12090,41
513,02096,31
081,91091,31
050,81016,21
039,61039,11
518,51551,11
007,41004,01
006,31056,9
242AW
/5726
gnilooClatoTgnilooCelbisneS
009,42009,91
088,32035,91
078,22041,91
076,12027,81
088,02572,81
009,91008,71
029,81003,71
069,71077,61
000,71512,61
050,61003,51
050,51003,41
/0876
gnilooClatoTgnilooCelbisneS
006,62003,91
040,62061,91
024,52079,81
047,42047,81
000,42064,81
012,32041,81
053,22077,71
054,12053,71
084,02098,61
000,91007,51
055,71004,41
/5827
gnilooClatoTgnilooCelbisneS
003,13577,91
053,03034,91
062,92040,91
020,82095,81
046,62090,81
011,52035,71
044,32029,61
026,12062,61
006,02045,51
574,91007,41
004,81009,31
352AW
/5726
gnilooClatoTgnilooCelbisneS
004,32001,91
006,22007,81
008,12004,81
000,12009,71
001,02006,71
002,91001,71
003,81006,61
004,71002,61
004,61006,51
004,51001,51
003,41006,41
/0876
gnilooClatoTgnilooCelbisneS
009,42005,81
006,42003,81
002,42002,81
007,32009,71
000,32007,71
003,22004,71
005,12000,71
007,02007,61
007,91002,61
006,81008,51
004,71003,51
/5827
gnilooClatoTgnilooCelbisneS
007,92000,91
008,82006,81
008,72003,81
008,62008,71
006,52004,71
004,42009,61
002,32002,61
001,22007,51
007,02000,51
004,91003,41
009,71006,31
203AW
/5726
gnilooClatoTgnilooCelbisneS
009,03007,52
007,92003,52
005,82009,42
004,72004,42
001,62009,32
001,52003,32
000,42007,22
009,22002,22
009,12005,12
008,02008,02
007,91001,02
/0876
gnilooClatoTgnilooCelbisneS
000,33009,42
003,23008,42
006,13006,42
009,03004,42
000,03001,42
002,92007,32
003,82003,32
003,72009,22
003,62003,22
002,52007,12
000,42001,12
/5827
gnilooClatoTgnilooCelbisneS
003,93005,52
008,73002,52
003,63007,42
009,43003,42
004,33007,32
000,23000,32
005,03002,22
001,92005,12
007,72006,02
002,62006,91
007,42007,81
273AW
/5726
gnilooClatoTgnilooCelbisneS
003,73001,82
007,53007,72
002,43003,72
008,23008,62
004,13004,62
001,03008,52
009,82002,52
008,72005,42
007,62008,32
007,52009,22
006,42001,22
/0876
gnilooClatoTgnilooCelbisneS
008,93002,72
009,83001,72
000,83000,72
000,73008,62
000,63006,62
001,53002,62
001,43008,52
001,33003,52
001,23007,42
001,13000,42
000,03002,32
/5827
gnilooClatoTgnilooCelbisneS
004,74009,72
005,54005,72
007,34002,72
008,14006,62
000,04001,62
004,83004,52
008,63006,42
002,53007,32
008,33008,22
003,23007,12
009,03006,02
324AW
/5726
gnilooClatoTgnilooCelbisneS
002,34000,53
007,14003,43
001,04005,33
004,83008,23
006,63000,23
008,43002,13
000,33002,03
000,13003,92
000,92003,82
009,62002,72
007,42001,62
/0876
gnilooClatoTgnilooCelbisneS
001,64009,33
004,54006,33
005,44002,33
004,34008,23
000,24003,23
005,04007,13
009,83000,13
000,73003,03
009,43004,92
006,23005,82
001,03005,72
/5827
gnilooClatoTgnilooCelbisneS
009,45007,43
001,35001,43
001,15004,33
000,94006,23
007,64007,13
003,44007,03
000,24006,92
004,93004,82
007,63001,72
009,33008,52
000,13004,42
484AW
/5726
gnilooClatoTgnilooCelbisneS
002,84021,93
003,64025,83
056,44086,73
070,34015,73
003,14000,73
043,93031,63
091,73019,43
048,43033,33
003,23004,13
009,03000,03
005,92007,82
/0876
gnilooClatoTgnilooCelbisneS
044,15059,73
044,05008,73
046,94006,73
057,84004,73
005,74003,73
098,54047,63
029,34008,53
095,14094,43
009,83008,23
001,83050,23
052,73053,13
/5827
gnilooClatoTgnilooCelbisneS
009,95057,83
056,85052,83
042,75054,73
053,55032,73
007,25006,63
007,94075,53
007,64051,43
008,34023,23
058,04001,03
001,93007,82
054,73005,72
206AW
/5726
gnilooClatoTgnilooCelbisneS
053,06071,54
005,75007,34
036,45081,24
023,25011,14
000,05000,04
066,74048,83
092,54046,73
019,24093,63
005,04001,53
A/NA/N
A/NA/N
/0876
gnilooClatoTgnilooCelbisneS
006,46059,34
057,26069,24
096,06038,14
091,95051,14
005,75004,04
016,55075,93
045,35066,83
062,15076,73
008,84006,63
A/NA/N
A/NA/N
/5827
gnilooClatoTgnilooCelbisneS
008,67009,44
003,37074,34
016,96079,14
047,66048,04
008,36006,93
087,06062,83
007,75018,63
035,45062,53
003,15006,33
A/NA/N
A/NA/N
srotcaFreilpitluMyticapaC
wolfriAdetaRfo% 01- detaR 01+
HUTBlatoTHUTBelbisneS
579.0059.0
0.10.1
20.150.1
Cooling Application Data - Outdoor Temperature 1
Form No. S3208-607Supersedes S3208-206Page 11 of 12
1 Low ambient control is required with economizer for low temperature compressor operation.
2 For use only with “V” Control Module and TCS22 Controller.
3 Intake and exhaust can be independently adjusted.
STD = Standard equipment for these specified models.
1 TDR. Time delay relay only for compressor is fixed 5-minute delay-on-break to prevent short cycling. Not needed if HPC or LPC are used. See notes 2, 3 and 4.
2 HPC. High pressure control is auto reset. Always used with compressor control module (CCM) which is included. See note 4.
3 LPC. Low pressure control is auto reset. Always used with compressor control module (CCM) which is included. See note 4.
4 CCM. Compressor control module has adjustable 30-second to 5-minute delay-on-break timer. On initial power-up, or any time the power is interrupted, the delay-on-make will be 2-
minutes plus 10% of the delay-on-break setting. There is no delay-on-make during routine operation of the unit. The module also provides the lockout feature (with 1 retry) for
high and/or low-pressure controls, and a 2-minute timed bypass for low-pressure control.
5 LAC. Low ambient control permits cooling operation down to 0°F
6 ALR. The alarm relay has a set of normally open and normally closed dry contacts to provide the ability to signal a condition of shutdown on either high or low pressure controls.
7 SK. Start kit can be used with all -A single phase models only. Is not used or available for -B or -C three phase models.
8 ODT. Outdoor thermostat is adjustable from 0 to 50°F. It is suitable for use as a compressor cut-off thermostat.
9 DDC. Incorporates 4 additional sensors: discharge air temperature, indoor blower airflow, compressor current, and dirty filter. These sensing devices function to input analog data
such as temperature, as well as digital data such as airflow, compressor status or filter status.
� “V” control module should be ordered in conjunction with direct digital controller (DDC) model TCS22. Refer to DDC specification sheet S3280 for more information.� Use CMA-24 for Model WA423. � Use CMA-23 for Models WA253.
FiguresFigure 1 Unit Dimensions ...................................... 5Figure 2 Fresh Air Damper Assembly ................... 8Figure 3 Mounting Instructions ............................ 10Figure 4 Electric Heat Clearance .........................11Figure 5 Wall Mounting Instructions .................... 12Figure 6 Wall Mounting Instructions .................... 12Figure 7 Common Wall Mounting Installations .... 13Figure 8 Unit 24V Terminal Board ....................... 15Figure 9 Fan Blade Setting ................................. 18
TablesTable 1 Electric Heat Table .................................. 4Table 2 Electrical Specifications ................ 6 and 7Table 3 Thermostat Wire Size ........................... 14Table 4 Wall Thermostat .................................... 14Table 5 Fan Blade Dimensions .......................... 18Table 6 Refrigerant Charge ............................... 18Table 7 Indoor Blower Performance .................. 18Table 7A Indoor Blower Performance .................. 19Table 8 Recommended Airflow .......................... 19Table 9 Maximum ESP Electric Heat Only ........ 19Table 9A Maximum ESP Electric Heat Only ........ 19Table 10 Pressure Table ...................................... 20Table 11 Optional Accessories ............................ 21
Getting Other Information and Publications 3
Wall Mount General InformationHeat Pump Wall Mount Model Nomenclature .......... 4Shipping Damage .................................................... 7General ................................................................ 7Duct Work ................................................................ 8Filters ................................................................ 8Fresh Air Intake ....................................................... 8Condensate Drain .................................................... 8
Installation InstructionsWall Mounting Information ....................................... 9Mounting the Unit .................................................... 9Wiring – Main Power ............................................. 14Wiring – Low Voltage Wiring ................................. 14
Start UpImportant Installer Note ......................................... 16High Pressure Switch ............................................ 16Three Phase Scroll Compressor Start Up .............. 16Phase Monitor ....................................................... 16Condenser Fan Operation ..................................... 16Service Hints ......................................................... 16Sequence of Operation .......................................... 17Compressor Control Module .................................. 17Adjustments ........................................................... 17Pressure Service Ports .......................................... 17
For improved start up performance wash the indoor coil
with a dish washing detergent.
HIGH PRESSURE SWITCH
The WA381, WA484, WA491 and WA602 models are
supplied with a remote reset high pressure switch. If
tripped, this pressure switch may be reset by turning the
thermostat off then back on again.
THREE PHASE SCROLL COMPRESSORSTART UP INFORMATION
Scroll compressors, like several other types of
compressors, will only compress in one rotational
direction. Direction of rotation is not an issue with
single phase compressors since they will always start
and run in the proper direction.
However, three phase compressors will rotate in either
direction depending upon phasing of the power. Since
there is a 50-50 chance of connecting power in such a
way as to cause rotation in the reverse direction,
verification of proper rotation must be made.
Verification of proper rotation direction is made by
observing that suction pressure drops and discharge
pressure rises when the compressor is energized.
Reverse rotation also results in an elevated sound level
over that with correct rotation, as well as, substantially
reduced current draw compared to tabulated values.
Verification of proper rotation must be made at the
time the equipment is put into service. If improper
rotation is corrected at this time, there will be no
negative impact on the durability of the compressor.
However, reverse operation for over one hour may have
a negative impact on the bearing due to oil pump out.
NOTE: If compressor is allowed to run in reverse rotation
for several minutes, the compressor’s internal
protector will trip.
All three phase ZR compressors are wired identically
internally. As a result, once the correct phasing is
determined for a specific system or installation,
connecting properly phased power leads to the same
Fusite terminal should maintain proper rotation
direction.
The direction of rotation of the compressor may be
changed by reversing any two line connections to the
unit.
PHASE MONITOR
All units with three phase scroll compressors are
equipped with a 3 phase line monitor to prevent
compressor damage due to phase reversal.
The phase monitor in this unit is equipped with two
LEDs. If the Y signal is present at the phase monitor
and phases are correct the green LED will light.
If phases are reversed, the red fault LED will be lit and
compressor operation is inhibited.
If a fault condition occurs, reverse two of the supply
leads to the unit. Do not reverse any of the unit factory
wires as damage may occur.
CONDENSER FAN OPERATION
The condenser fan motor on 230/208 volt, one and three
phase, 60 HZ units is a two-speed motor that comes
factory wired on high speed for peak performance. If
ambient conditions permit, it can be reconnected to low
speed (red wire) for lower sound level. See wiring
diagram.
50 HZ models must have fan wired on low speed.
These models are factory wired on low speed.
SERVICE HINTS
1. Caution homeowner to maintain clean air filters atall times. Also, not to needlessly close off supplyand return air registers. This reduces airflowthrough the system, which shortens equipmentservice life as well as increasing operating costs.
2. Switching to heating cycle at 75° F or higher outsidetemperature may cause a nuisance trip of the remotereset high pressure switch. Turn thermostat off thenon to reset the high pressure switch.
3. Check all power fuses or circuit breakers to be sure
they are the correct rating.
4. Periodic cleaning of the outdoor coil to permit full
and unrestricted airflow circulation is essential.
Manual 2100-398CPage 17 of 21
SEQUENCE OF OPERATION
COOLING – Circuit R-Y makes at thermostat pullingin compressor contactor, starting the compressor andoutdoor motor. The G (indoor motor) circuit isautomatically completed on any call for coolingoperation or can be energized by manual fan switch onsubbase of constant air circulation. On all 230 volt unitsthere is a one-minute off delay on the blower motor.460 volt models do not have an off delay. On a call forheating, circuit R-W1 make at the thermostat pulling inheat contact for the strip heat and blower operation. Ona call for second stage heat, R-W2 makes bringing onsecond heat contactor, if so equipped.
COMPRESSOR CONTROL MODULE
The compressor control module is standard on theWA391, WA484, WA491and WA602 models coveredby this manual and is optional on the WA423 model.The compressor control is an anti-short cycle/lockouttimer with high and low pressure switch monitoring andalarm relay output.
Adjustable Delay On Make And Break Timer
On initial power up or anytime power is interrupted tothe unit, the delay on make period begins, which will be2 minutes plus 10% of the delay on break setting. Whenthe delay on make is complete and the high pressureswitch (and low pressure switch if employed) is closed,the compressor contactor is energized. Upon shutdown,the delay or break timer starts and prevents restart untilthe delay on break and delay on make periods haveexpired.
During routine operation of the unit with no powerinterruptions, the compressor will operate on demandwith no delay.
High Pressure Switch and Lockout Sequence
If the high pressure switch opens, the compressor
contactor will de-energize immediately. The lockout
timer will go into a soft lockout and stay in soft lockout
until the high pressure switch closes and the delay on
break time has expired. If the high pressure switch
opens again in this same operating cycle, the unit will go
into manual lockout condition and the alarm relay circuit
will energize. Recycling the wall thermostat resets the
manual lockout.
Low Pressure Switch, Bypass, and LockoutSequence
If the low pressure switch opens for more than 120
seconds, the compressor contactor will de-energize and
go into a soft lockout. Regardless the state of the low
pressure switch, the contactor will reenergize after the
delay on make time delay has expired. If the low
pressure switch remains open, or opens again for longer
than 120 seconds, the unit will go into manual lockout
condition and the alarm relay circuit will energize.
Recycling the wall thermostat resets the manual lockout.
Alarm Relay Output
Alarm terminal is output connection for applications
where alarm relay is employed. This terminal is
powered whenever compressor is locked out due to HPC
or LPC sequences as described.
NOTE: Both high and low pressure switch controls are
inherently automatic reset devices. The high
pressure switch and low pressure switch cut out
and cut in settings are fixed by specific air
conditioner or heat pump unit model. The
lockout features, both soft and manual, are a
function of the Compressor Control Module.
ADJUSTMENTS
Adjustable Delay on Make and Delay on BreakTimer
The potentiometer is used to select Delay on Break time
from 30 seconds to 5 minutes. Delay on Make (DOM)
timing on power-up and after power interruptions is
equal to 2 minutes plus 10% of Delay on Break (DOB)
setting:
0.5 minute (30 seconds) DOB = 123 second DOM
1.0 minute (60 seconds) DOB = 126 second DOM
2.0 minute (120 seconds) DOB = 132 second DOM
3.0 minute (180 seconds) DOB = 138 second DOM
4.0 minute (240 seconds) DOB = 144 second DOM
5.0 minute (300 seconds) DOB = 150 second DOM
During routine operation of the unit with no power
interruptions the compressor will operate on demand
with no delay.
Typical Settings for Dual Unit Installation:
Unit 1: DOB set at 2 minutes, and DOM is 132 seconds
Unit 2: DOB set at 4 minutes, and DOM is 144 seconds
PRESSURE SERVICE PORTS
High and low pressure service ports are installed on all
units so that the system operating pressures can be
observed. A pressure table can be found later in the
manual covering all models. It is imperative to match
the correct pressure table to the unit by model number.
Manual 2100-398CPage 18 of 21
REMOVAL OF FAN SHROUD
1. Disconnect all power to the unit.
2. Remove the screws holding both grilles, one on each
side of unit, and remove grilles.
3. Remove screws holding fan shroud to condenser and
bottom. Nine (9) screws.
FIGURE 9FAN BLADE SETTING
TROUBLESHOOTING
4. Unwire condenser fan motor.
5. Slide complete motor, fan blade, and shroud
assembly out the left side of the unit.
6. Service motor/fan as needed.
7. Reverse steps to reinstall.
REFRIGERANT CHARGE
The correct system R-22 charge is shown on the unit
rating plate. Optimum unit performance will occur with
a refrigerant charge resulting in a suction line
temperature (6" from compressor) as shown in Table 6.
Table 7A on Page 19 for models WA381 and WA491
TABLE 5FAN BLADE DIMENSION
ledoMnoisnemiD
A
183AW324AW484AW194AW206AW
57.1
The suction line temperatures in table above are based
upon 80° F dry bulb / 67° F wet bulb (50% R.H.)
temperature and rated airflow across the evaporator
during cooling cycle.
TABLE 6REFRIGERANT CHARGE
ledoMdetaRwolfriA
DO59erutarepmeT
DO28erutarepmeT
183AW 0011 84-05 64-84
324AW 0041 45-25 66-46
484AW 0551 65-45 76-56
194AW 0521 64-84 54-74
206AW 0071 55-35 26-06
TABLE 7INDOOR BLOWER PERFORMANCE
CFM @ 230V
.P.S.EHnI 20
484AW,324AW 206AW
V032woL V032hgiH V032woL V032hgiH
lioCyrD teWlioC lioCyrD teW
lioC lioCyrD teWlioC lioCyrD teW
lioC
0.1.2.3.4.5.
05610551054105310031---
00610051004100315711---
588107715361005107310521
008156610451004158210511
00615251------------
05415731------------
002200120002578157710561
000200910081007100615741
FAN BLADE SETTING DIMENSIONS
Shown in Figure 9 is the correct fan blade setting
dimension for proper air delivery across the outdoor
coil.
Any service work requiring removal or adjustment in
the fan and/or motor area will require that the
dimensions below be checked and blade adjusted in or
out on the motor shaft accordingly.
MIS-1724
Manual 2100-398CPage 19 of 21
TABLE 9MAXIMUM ESP OF OPERATION
ELECTRIC HEAT ONLY
Values shown are for units equipped with standard
1-inch throwaway filter or 1-inch washable filter.
� Revised and/or additional pages maybe issued from time to time.
� A complete and current manualconsists of pages shown in thefollowing contents section.
Important
� Contact the installing and/or local Barddistributor for all parts requirements.Make sure you have the completemodel and serial number availablefrom the unit rating plates.
Contents
Description Page
Cabinet Components� Exploded View .......................... 2� Usage List ................................. 3� Usage List ................................. 4
Functional Components� Exploded View .......................... 5� Usage List ................................. 6� Usage List ................................. 7
Control Panel� Exploded View .......................... 8� Usage List ................................. 9� Usage List ................................ 10� Blank Page .............................. 11� Exploded View ......................... 12� Usage List ................................ 13
Blower Assembly� Exploded View ......................... 14� Usage List ................................ 14
� Circuit breakers listed are for units without electric heat "0Z" models. Hot gas bypass models not available
without electric heat. See Heater Replacement Parts Manual for units with electric heat.
NS = Not shown
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7 031-531 dleihSeriW X X X X X X X X X
8 600-1168 lanimreTdnuorG X X X X X X X X X
9 7101-0003 rotcennoCniP6 X X X X X X X X X
01 260-1028 yaleR X X X X X X X X X
11 290-1028 draoBcigoL X X X X X X X X X
41 931X711 xoBegatloVwoL X X X X X X X X X
51 341X711 lenaPlortnoC X X X X X X X X X
61 710-7068 )lanoitpO(kcolBlanimreT X X X X X X X X X
71 880-1028 eludoMlortnoCrosserpmoC X X X X X X X X X
SN 040-5168 eloP2A05rekaerBtiucriC 2 X X
SN 240-5168 eloP3A53rekaerBtiucriC 2 X X
SN C10-DPMW tcennocsiDlluP 2 X X X
SN 140-5168 eloP2A06rekaerBtiucriC 2 X
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SN 022-5904 margaiDgniriW X X X
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Manual 2110-452D
Page 14 of 14
BLOWER ASSEMBLY
900-183
900-184
900-185
900-186
900-242
900-243
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5 040-0028 tnuoMrotoM X X X X X X
6 110-1545 stemmorG 6 6 6 6 6 6
7 188-501 ecarBkcaB X X X X X X
8 088-501 elgnAediS 4 4 4 4 4 4
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BARD MANUFACTURING CO., INC. — BRYAN, OHIO 43506Dependable quality equipment . . . since 1914
Limited Warranty
Limited Warranty To Original PurchaserBard Manufacturing Company, Inc. Bryan, Ohio 43506 warrants to you, the original purchaser, that your Bard product will be free from defects in
materials and workmanship when used under normal conditions from the installation date through the time periods outlined in the “Duration of Warranty”
section (see reverse side).
Proof Of PurchaseYou must be able to show us the date on which you purchased your product when you make a claim under this warranty. Your owner’s registration card
filed with us or your contractor’s invoice, bill of sale, or similar document is sufficient. If you can not show us the actual date of purchase, the time
periods in this warranty will start on the date that we shipped your Bard product from our factory.
What This Warranty Does Not Cover (Also see Duration of Warranty on reverse side)This warranty does not cover defects or damage caused by:
1. Alterations not approved by us; improper installation (including over or under sizing), improper repairs, or servicing; or improper parts and
accessories not supplied by us.
2. Misuse or failure to follow installation and operating instructions (including failure to perform preventative maintenance) or limitations on the rating
plate.
3. Operation in a corrosive atmosphere (such as acids, halogenated hydrocarbons or coastal environmental conditions).
4. Parts that must be replaced periodically (such as filters, oil nozzles, mist eliminators, WERV belts, pile seals, etc.).
5. Improper fuel or electrical supply (such as low voltage, voltage transients, and power interruption).
6. Accidents or other events beyond our reasonable control (such as storm, fire, or transportation damage).
7. Defects that happen after
(a) Anyone has tampered with the product.
(b) The product has been improperly serviced according to accepted trade practices;
(c) The product has been moved from its original place of installation; or,
(d) The product has been damaged by an event beyond Bard’s control (See also No. 5 above).
8. Consequential damages (such as increased living expenses while the product is being repaired). Some states do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
9. This warranty does not cover units installed on over-the-road trucks, vans and trailers.
10. Cost of service call at installation site to diagnose causes of trouble, labor to replace defective component or transportation costs for
replacement parts.
11. Contact Bard Manufacturing Company, Inc. for specific warranty exclusions on products installed outside of the United States, Canada and Mexico.
Your ResponsibilitiesYou are responsible for
1. Preventative maintenance of the product (such as cleaning and replacement of filters, nozzles and other consumable parts).
2. Insuring that the instruction manual is followed for care and use of your product.
3. Insuring that your product is installed by a competent, qualified contractor, following all local and national codes, and industry standards.
What We Will Do About A DefectWe will either repair or replace the defective part only. Replacement parts may be reconditioned parts. The warranty for the repaired or replaced
part will last only for the remainder of the warranty period for the original part. For Heat Exchangers that are no longer available, we will give you credit
equal to the then current retail price of an equivalent Heat Exchanger.
Defective parts and a properly completed Bard parts warranty form must be returned to a Bard distributor to be eligible for a warranty credit or
replacement.
We will not pay or be responsible for labor or defective/replacement part transportation costs or delays in repairing or failures to complete repairs
caused by events beyond our reasonable control.
What You Must Do 1. Tell your heating and air conditioning contractor as soon as you discover a problem and have the contractor make repairs.
2. Pay for all transportation, related service labor, diagnostic charges, refrigerant, refrigerant recovery and related items.
ServiceIf your product requires service, you should contact the contractor who installed it or the contractor that has been providing the product’s
preventative maintenance and repair service. You may find the installing contractor’s name on the product or in your Owner’s packet. If you do
not know who that is, you should contact a competent, qualified contractor to make the repairs. If in doubt, you should contact the nearest distributor
that handles Bard products (see telephone pages). Please note that contractors and distributors that handle Bard products are independent contractors
and distributors, and therefore, are not under the direction of Bard Manufacturing Company, Inc.
Only WarrantyThis is the only warranty that we make. There are no other express warranties. All implied warranties are limited in duration to the duration of the
applicable written warranty made above.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation or exclusion may not apply to you.
Other RightsThis warranty gives you specific legal rights and you may have other rights which vary from state to state.
(For units applied within the United States, Canada and Mexico)