Bard W24L, W24A, W70A, W70L User Manual
THE WALL-MOUNT™ AIR CONDITIONERS (50HZ)
Models W24A to W70A and W24L to W70L
21,200 Btuh (6.21 KW) – 59,000 Btuh (17.28 KW)
Right Side Control Panel 50Hz
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.
Engineered Features
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:
Scroll Compressors eliminate need for
crankcase heater. Standard on all
models.
R-410A Refrigerant:
Designed with R-410A (HFC) nonozone depleting refrigerant in
compliance with the Montreal protocol
and 2010 EPA requirements.
Phase Rotation Monitor:
Standard on all 3 phase scroll
compressors. Protects against reverse
rotation if power supply is not properly
connected.
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.
Foil Faced Insulation:
Standard on all units.
Full Length Mounting Brackets:
Built into cabinet for improved
appearance and easy installation.
NOTE: Bottom mounting bracket
included to assist in installation.
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 toggle
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 1½
through 6 ton models.
Filter Service Door:
Separate service door provides easy
access for filter change.
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. Optional ventilation
packages available.
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.
Top Rain Flashing:
Standard feature on all models.
GREEN REFRIGERANT
R-410A
Liquid Line Filter Drier:
Standard on all units. Protects system
against moisture.
Compressor Control Module:
Standard on all units. Built-in off-delay
timer adjustable from 30 seconds to 5
minutes. 2-minute on-delay if power
interrupt. 120-second bypass for low
pressure control, and both soft and
manual lockouts for high and low
pressure controls. Alarm output for
alarm relay.
High & Low Pressure Switches are
Auto-Reset:
Standard on all units. Built-in lockout
circuit resets from the room thermostat.
Provides commercial quality protection to
the compressor.
Form No. S3408-1011
Supersedes S3408-710
Page 1 of 8
M
E
C
F
B
S
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s
M
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F
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Capacity and Efficiency Ratings
SLEDOM
1A42W
1L42W
1A03W
hutByticapaCgnilooC002,12000,62002,13000,63005,14005,84000,95
WKyticapaCgnilooC12.626.741.945.0151.2102.4182.71
REE0.90.90.92.90.90.95.9
1A63W
1L63W
1A24W
1L24W
1A84W
1L84W
1A06W
1L06W
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Specifications 21,200 Btuh (6.21 KW) — 31,200 Btuh (9.14 KW)
SLEDO
zH05-gnitaRlacirtcel
egnaRegatloVgnitarepO452-891654-243452-891654-243452-891242-081654-243
AtiucriC--rosserpmo
egatloV 022/042 083/514 022/042 083/514 022/042 002/022 083/514
spmAdaoLdetaR 6.01/4.9 0.5/8.4 7.41/9.21 8.4/8.4 8.51/1.51 1.31/8.11 0.6/8.5
tnerruCnoitceleStiucriChcnarB 9.01 2.5 7.41 8.4 0.61 3.31 0.6
spmArotoRkcoL06/0682/8276/7603/0378/7859/5944/44
epyTrosserpmoCllorcSllorcSllorcSllorcSllorcSllorcSllorcS
resnednoC&rotoMna
MPR--PH--rotoMnaF059-5/1059-5/1059-5/1059-5/1059-5/1059-5/1059-5/1
spmA--rotoMnaF0.10.15.15.15.15.15.1
3
mAID--naF
s/66.0/85466.0/85468.0/80568.0/80568.0/80568.0/80568.0/805
rotaropavE&rotoMrewol
DPS-MPR-PH--rotoMrewolB1-059-5/11-059-5/12-059-3/12-059-3/12-059-3/12-059-3/12-059-3/1
spmA--rotoMrewolB2.12.12.22.22.22.22.2
3
m
)ap(.P.S.E&gnilooCs/
)lioCteW-detaR(retliF/w
.DTS)mm(seziSretliF52x536x50452x536x50452x567x50452x567x50452x567x50452x567x50452x567x504
)gK(.sbL--thgieWgnippih
D-1A42W
1-022/042 3-083/514 1 1-022/042 3-083/514 1 1-022/042 3-002/022 3-083/514 1
55/23.055/23.055/54.055/54.005/74.005/74.005/74.0
)251(533 )251(533 )071(573 )071(573 )071(573 )071(573 )071(573
F-1A42W
F-1L42W
D-1A03WF-1A03WD-1A63WE-1A63W
1A07W
1L07W
deredroebtsumetalprevoC.etalprevocriahserfhtiwnoitarepodeepshgihnodesabsinoitamrofninoitarepofotsocdnaycneiciffe,yticapacll
F-1A63W
F-1L63W
Specifications 36,000 Btuh (10.54 KW) — 59,000 Btuh (17.28 KW)
SLEDO
zH05--gnitaRlacirtcel
E-1A24W
3-002/022 3-083/514 11111 3-002/022 3-083/514 11111 3-002/022 3-083/514 11111 3-083/004 11
F-1A24W
F-1L24W
E-1A84W
egnaRegatloVgnitarepO242-081654-243242-081654-243242-081654-243044-243
egatloV 002/022 083/514 002/022 083/514 002/022 083/514 083/004
AtiucriC--rosserpmo
spmAdaoLdetaR 5.21/0.11 8.5/8.5 2.51/9.31 1.7/1.7 2.51/5.31 6.7/4.7 1.41/2.21
tnerruCnoitceleStiucriChcnarB 2.31 0.6 2.51 1.7 7.51 8.7 1.41
spmArotoRkcoL38/3844/4489/8984/84011/01125/2557/57
epyTrosserpmoCllorcSllorcSllorcSllorcSllorcSllorcSllorcS
resnednoC&rotoMna
MPR-PH--rotoMnaF528-3/1528-3/1528-3/1528-3/1528-3/1528-3/1059-3/1
spmA--rotoMnaF5.25.25.25.25.25.20.4
3
m.AID--naF
s/10.1/01610.1/01610.1/01610.1/01610.1/01610.1/01610.1/016
rotaropavE&rotoMrewol
DPS-MPR-PH--rotoMrewolB2-059-2/12-059-2/12-059-2/12-059-2/12-059-2/12-059-2/12-059-2/1
spmA--rotoMrewolB3.33.33.33.33.33.33.3
3
m
)ap(.P.S.E&gnilooCs/
)lioCteW-detaR(retliF/w
57/55.057/55.005/06.005/06.057/66.057/66.005/07.0
.DTS)mm(seziSretliF52x567x80552x567x80552x567x80552x567x80552x567x80552x567x80552x567x805
)gK(.sbL--thgieWgnippih
)832(525 )832(525 )832(525 )832(525 )832(525 )832(525 )832(525
1 .dnuorgdnalartuensulpsgelesahp)3(eerhtgniriuqersmetsys)rats(eywesahp-3erasgnitarlacirtcele3-083/004dna3-083/514
:ETO
.deriuqergniriwdleifondnadetcennocyllanretnisisihT
Form No. S3408-1011
Supersedes S3408-710
Page 2 of 8
F-1A84W
F-1L84W
E-1A06W
F-1A06W
F-1L06W
P-1A07W
P-1L07W
11
1
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Ventilation System Packages
Bard Wall-Mounts are designed to provide optional ventilation packages to meet all of your ventilation and indoor air quality requirements.
Standard on all units is the barometric fresh air damper. All packages can be ordered built-in at the factory or can be easily field-installed
at the time of installation of the Wall-Mount, or can be retrofitted at a later date.
BAROMETRIC FRESH AIR DAMPER - BFAD STANDARD
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.
BAROMETRIC FRESH AIR DAMPER
MOTORIZED FRESH AIR DAMPER
COMMERCIAL ROOM VENTILATOR
BLANK OFF PLATE - BOP OPTIONAL
A 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 OPTIONAL
The 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.
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.
COMMERCIAL ROOM VENTILATOR - CRV OPTIONAL
The 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. The CRV is power open - spring
return on power loss. Complies with ASHRAE Standard 62.1 “Ventilation for Acceptable Indoor Air
Quality.”
ECONOMIZER - EIFM OPTIONAL
The 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.
ECONOMIZER
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.
Moisture Eliminator & Prefilter - permanent, washable aluminum construction.
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.
Form No. S3408-1011
Supersedes S3408-710
Page 3 of 8
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