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The purpose of the CMA-44 kit is to allow the
addition of sensors for connection to a DDC control
system. These sensors include a dirty filter switch, a
discharge air sensor, an airflow verification switch and a
compressor current sensor.
The CMA-44 kit is for use with Bard models W42-72AC
wall-mount air conditioners.
The CMA-44 consists of field-installable sensors for use
with DDC control systems. The CMA-44 includes:
• 7960-855 CMA-44 Supplemental Instructions
• 910-2070 Airflow Switch Assembly
• 910-2071 Filter Switch Assembly
• 910-2073 Filter Switch Light Assembly
• 910-2090 Compressor Current Sensor
• 910-1224 Discharge Air Sensor
• 8607-021 Low Voltage Terminal Board
• 7961-837 Terminal Board Label
• 7960-854 CMC-33 Supplemental Instructions
• 8201-159 Relay, DPDT
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual: 7960-855
Supersedes:
NEW
Date: 9-24-19
SUPPLEMENTAL INSTRUCTIONS
Exposed moving parts.
Disconnect all electrical power before
servicing.
Failure to do so can result in severe injury
or amputation.
!
WARNING
Electrical shock hazard.
Disconnect the remote electric power
supply or supplies before servicing.
Failure to do so can result in serious injury
or death.
!
WARNING
• 3018-2134 Orange Wire (2)
• 7950-005 Nylon Cable Clamp (2)
• 8611-028 1/2" Snap Bushing (2)
• 8611-047 3/4" Snap Bushing (2)
• 1012-065 Phillips Head Screw (7)
• 1012-086 Hex Head Screw (7)
• 1012-153 Smooth Hex Head Screw (2)
• 7950-012 Push Mount Cable Tie (6)
• 7950-004 Ladder Cable Tie (2)
• 7961-312-0512 CMA-44 Unit I.D. Label
Field-supplied tools needed:
• Personal protection equipment, including gloves
and safety glasses
• 5/16" nut driver
• Phillips head screwdriver
• Small flat head screwdriver for securing wire in
terminal blocks
• Multimeter for troubleshooting
CMA-44 DDC Sensors
