Bard WL3S, WL5S, WA5S, WA3S User Manual
THE WALL-MOUNT™ STEP CAPACITY AIR CONDITIONERS
Integrated Part Load Value (IPLV) Efficiency Up To 15.2 BTU/WATT
WA3S – WA5S Right Side Control Panel
GREEN REFRIGERANT
WL3S – WL5S Left Side Control Panel
3 to 5 Ton (35,400 to 56,500 Btuh) 60Hz
The Bard WA/L "S" Series is the world's most energy efficient wall mounted
air conditioner featuring a multi-step capacity compressor with
environmentally friendly non-ozone depleting refrigerant.
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
Multi-Capacity Two-Stage:
Simple thermostatic control
seamlessly stages the compressor
and indoor airflow rate between high
and low capacity operations without
cycling the compressor. This helps
to maximize comfort, humidity
control, energy efficiency and overall
reduction in compressor cycling for
improved system life.
Multi-Step Capacity
Compressor:
Copeland step-capacity scroll
compressors are designed for
increased efficiency, quieter operation
and improved reliability for longer life.
R-410A Refrigerant:
Designed with R-410A (HFC) nonozone depleting refrigerant in
compliance with the Montreal
protocol and 2010 EPA requirements.
ECM Indoor Blower Motor:
Features a variable speed motor
providing super-high efficiency, low
sound levels and soft-start
capabilities.
adjusting to provide the proper airflow
rate for the staged capacity, and for
higher static pressure in ducted
installations without user adjustment
or wiring changes.
The motor is self-
Aluminum Finned Copper Coils:
Grooved tubing and enhanced
louvered fin for maximum heat
transfer and energy efficiency.
Twin Blowers:
Move air quietly. All models feature
variable speed blower motors
providing automatic airflow
adjustment for high static or free
blow (non-ducted) operation at a very
low sound level. Motor overload
protection is standard on all models.
Foil Faced Insulation:
Standard on all units.
Start Kit:
A PTCR compressor start assist
(Positive Temperature Coefficient
Resistor) is standard on all -A singlephase models to increase system
reliability. This helps to insure
compressor starts at adverse
conditions by increasing the
compressor starting torque.
Compressor Control Module:
Built-in off-delay timer adjustable
from 30 seconds to 5 minutes. 2minute 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.
Liquid Line Filter Drier:
Standard on all units. Protects
system against moisture.
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.
Crankcase Heaters:
Factory installed crankcase heaters
are standard on all models. This
helps to insure ease of start at low
temperatures and improves
compressor life.
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.
Galvanized 16 Gauge Zinc
Coated Unit Base:
The unit base is treated with the
same paint coatings as the cabinet
above, insuring years of service
without visible corrosion.
Drain Pan:
The evaporator drain pan is
constructed of stainless steel
material for maximum corrosion
resistance.
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.
R-410A
Electric Heat Strips:
Features line break automatic limit
and dual backup safety controls.
Heater packages can be factory or
field installed for all models.
Filter Service Door:
Separate service door provides easy
access for filter change.
Two-Inch, Pleated Disposable
Air Filters:
Are standard equipment.
Condenser Fan and Motor
Shroud Assembly:
Slides out for easy access.
Circuit Breakers/Rotary
Disconnect:
Standard on all versions of single (230/
208 volt) and three phase (230/208
volt) equipment. Rotary disconnects
are standard on all 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.
• Complies with efficiency requirements of ANSI/ASHRAE/IESNA 90.1-2010.
• Certified to ANSI/ARI Standard 390-2003 for SPVU (Single Package Vertical Units).
• Intertek ETL Listed to Standard for Safety Heating and Cooling Equipment ANSI/UL
1995/CSA 22.2 No. 236-05, Fourth Edition.
• Commercial Product - Not intended for Residential application.
Form No. S3378-1112
Supersedes S3378-712
Page 1 of 12
Capacity and Efficiency Ratings
c
1
SLEDOM
noitarepOegatSdn2,HUTByticapaCgnilooC
noitarepOegatSdn2REE 21
)lioCteW(MFCdetaR
noitarepOegatSts1,HUTByticapaCgnilooC
noitarepOegatSts1REE 2
)lioCteW(MFCdetaR
3S3AW
2S3LW
004,53
1.11
0011
000,42
7.11
008
3S4AW
2S4LW
000,64
2.11
0051
000,43
6.11
0011
3S5AW
2S5LW
005,65
1.01
0071
000,04
8.01
0031
VLPI 3 1.512.513.41
1 Certified in accordance with ANSI/ARI Standard 390-2003 for single package vertical units.
2 EER = Energy Efficiency Ratio - BTU/WATT efficiency.
3 Integrated Part Load Value - BTU/WATT efficiency and certified in accordance with ANSI/ARI Standard 390-2003.
All capacity, efficiency and cost of operation information is based on operation with fresh air cover plate. Cover plate is recommended for use to
obtain maximum energy efficiency where ventilation air is not required.
Indoor Blower Performance - CFM (0.00" through 0.80" H2O) 1
ylnOrewolBgnilooCegatSts1gnilooCegatSdn2
3S3AW
2S3LW
3S4AW
2S4LW
3S5AW
2S5LW
008008001100110041
5280011005100110051
0580031007100110051
cirtcelEWK01-5
taeH
1 These systems contain Variable Speed ECM Motor, which maintains airflow across static range at
dry and wet coil conditions.
irtcelEWK02-51
taeH
Specifications 3 Ton through 5 Ton
SLEDOM
yticapaCgnilooC004,53004,53004,53000,64000,64000,64005,65005,65005,65
yticapaCgnitaeH elbaTtaeHcirtcelEeeS
zH06--gnitaRlacirtcelE
egnaRegatloVgnitarepO352-791352-791605-414352-791352-791605-414352-791352-791605-414
AtiucriC--rosserpmoC
egatloV 802/032 802/032 064 802/032 802/032 064 802/032 802/032 064
spmAdaoLdetaR 6.41/3.21 9.7/7.6 6.3 1.91/1.61 21/1.01 8.4 6.62/9.12 9.81/5.51 8.7
tnerruCnoitceleStiucriChcnarB 7.61 6.11 7.5 2.12 0.41 5.6 1.72 9.81 0.9
spmArotoRkcoL3837834011.381435101125
epyTrosserpmoCllorcSllorcSllorcSllorcSllorcSllorcSllorcSllorcSllorcS
resnednoC&rotoMnaF
DPS-MPR-PH--rotoMnaF2-528-3/12-528-3/12-528-3/12-528-3/12-528-3/12-528-3/12-528-3/12-528-3/12-528-3/1
spmA--rotoMnaF5.25.23.15.25.23.15.25.23.1
MFC/AID--naF0072-"420072-"420072-"420082-"420082-"420082-"420082-"420082-"420082-"42
.pavE&rotoMrewolB
DPS-MPR-PH--rotoMrewolBelbairaV-2/1elbairaV-2/1elbairaV-2/1elbairaV-4/3elbairaV-4/3elbairaV-4/3elbairaV-4/3elbairaV-4/3elbairaV-4/3
spmA--rotoMrewolB3.53.53.58.68.68.68.68.68.6
gnilooCMFC
)lioCteW(retliF/w
.DTS)sehcni(seziSretliF2x03x022x03x022x03x022x03x022x03x022x03x022x03x022x03x022x03x02
.SBL--thgieWgnippihS
A-3S3AW
A-2S3LW
1-802/032 3-802/032 3-064 1-802/032 3-802/032 3-064 1-802/032 3-802/032 3-064
001100110011005100510051007100710071
035 035 035 035 035 035 035 035 035
B-3S3AW
B-2S3LW
C-3S3AW
C-2S3LW
A-3S4AW
A-2S4LW
B-3S4AW
B-2S4LW
C-3S4AW
C-2S4LW
A-3S5AW
A-2S5LW
B-3S5AW
B-2S5LW
C-3S5AW
C-2S5LW
Form No. S3378-1112
Supersedes S3378-712
Page 2 of 12
Ventilation System Packages
Bard Wall-Mounts are designed to provide optional ventilation packages to meet all of your ventilation and indoor air quality requirements. All
units are equipped with a blank off plate as the standard ventilation package. All ventilation packages can be built-in at the factory, or fieldinstalled at a later date.
BLANK OFF PLATE - BOP STANDARD
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.
Motorized Fresh Air Damper
COMMERCIAL ROOM VENTILATOR
NOTE: This vent system is intake only without built-in exhaust capability. Building will likely require separate field
installed barometric relief or mechanical exhaust elsewhere within the conditioned space. Other building systems will
govern actual amount of intake air.
COMMERCIAL ROOM VENTILATOR - CRVMP 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 with integral bug screen. Automatic control is integrated to maintain
desired ventilation air at the various supply airflows.
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
ANSI/ASHRAE Standard 62.1 “Ventilation for Acceptable Indoor Air Quality.”
Economizer
ENERGY RECOVERY VENTILATOR
ECONOMIZER - ECONWM-Series 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.
• ECONWMT Equipment Building versions have extended air intake hood to deliver up to 100% of cooling rated airflow.
16" for ECONWMT-E2 or T2, and E3 or T3
18" for ECONWMT-E5 or T5
• ECONWMS Classroom versions have 3" air intake hood to deliver up to 75% of cooling rated airflow.
Standard Features:
•
Fully modulating
• Honeywell Direct Drive Hi-Torque Actuator
• No linkage required
• Simple single blade design
• Positive shut-off with non-stick gaskets
• Electronic DB and/or Enthalpy sensors depending upon version
• Honeywell JADE electronic economizer module with precision settings and diagnostics
• DB or Enthalpy economizer versions available
WALL-MOUNT ENERGY RECOVERY VENTILATOR - ERVF OPTIONAL
The wall-mount energy recovery ventilator (ERV) is a highly innovative approach to meeting indoor air quality
ventilation requirements as established by ANSI/ASHRAE Standard 62.1. The ERV 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 ERV 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 ERV is designed to be internally mounted behind the service door in the WA/LS model wall-mount units. It
can be built-in at the factory or field installed as an option. ERVF-*5 can be independently adjusted for intake and
exhaust rates.
Manufactured under U.S. Patent Nos. 5,485,878; 5,301,744.
Form No. S3378-1112
Supersedes S3378-712
Page 3 of 12
800
700
600
CRVMP-5
WA3S/WL3S Ventilation Airflow
500
400
300
Ventilation Airflow (CFM)
200
100
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30
Vent Position
CRVMP-5
1000
900
800
700
600
500
400
Ventilation Airflow (CFM)
300
WA4S/WL4S Ventilation Airflow
Stage #2
Operation
Blower Only
& Stage #1
Operation
Stage #2
Operation
Stage #1
Operation
Blower Only
Ventilation Airflow (CFM)
Form No. S3378-1112
Supersedes S3378-712
Page 4 of 12
200
100
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30
Vent Position
CRVMP-5
1000
900
800
700
600
500
400
300
200
100
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30
WA5S/WL5S Ventilation Airflow
Vent Position
Stage #2
Operation
Stage #1
Operation
Blower Only
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