Bard CMA-43 Owner's manual

Page 1 of 3
The CMA-43 is a field-installable outdoor thermostat
suitable for use as a compressor cutoff thermostat. This
thermostat stops the compressor operation below the
selected temperature (ºF). The thermostat is adjustable
from 0ºF to 50ºF. Default setting is 10ºF.
The CMA-43 kit is for use with Bard models W42AC,
W48AC, W60AC and W72AC air conditioners.
The
CMA-43 kit consists of:
• 7960-858 Supplemental Instructions
• 910-2110 Outdoor Thermostat
• 7950-020 Vinyl Covered Clamp (2)
• 1012-065 Phillips Head Screws (2)
• 1012-085 Hex Head Screws (3)
• 7961-312-0515 CMA-43 Unit I.D. Label
Field-supplied tools needed:
• Appropriate 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
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual: 7960-858
Supersedes: NEW
Date: 9-24-19
CMA-43 Outdoor Thermostat Kit (A/C)
SUPPLEMENTAL INSTRUCTIONS
Sharp metallic edges.
Take care and wear appropriate protective
devices to avoid accidental contact with
sharp edges.
Failure to do so can result in personal
injury.
!CAUTION
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

Manual 7960-858
Page 2 of 3
Installation
Disconnect all power to wall-mount unit. Remove
control panel outer and inner covers, right side
condenser inlet grille and front service access panel.
1. Mount outdoor thermostat 910-2110 in the control
panel with screws provided as shown in Figure 1.
2. Route wires through the wire channel in the control
panel to the compressor control module and the
compressor contactor as shown in Figure 2.
3. Route thermostat bulb through bushing in
condenser partition and mount to the fan shroud
with the clamp and screw provided as shown in
Figure 1.
4. Recheck wiring. Refer to Figure 2 and the unit
wiring diagram. Set thermostat to the desired
cutout temperature for the compressor. 0º or above
is recommended.
5. Attach “CMA-43” label to the inner control panel
cover above the unit wiring diagrams.
6. Replace all panels and covers. This completes the
installation.
MIS-4112
ATTACH THE END OF THE
CAPILLARY TUBE TO CABLE
CLAMP PART #7950-020
AT THE MIDDLE SCREW ON
THE FAN SHROUD. CLAMP
SHOULD GO ON LEFT SIDE
OF SCREW.
OUTDOOR T-STAT
PART #8408-028
RUN THE CAPILLARY COPPER TUBE
DOWN TO THE CONDENSOR SECTION
FIGURE 1

Manual 7960-858
Page 3 of 3
FIGURE 2
LPC
C
ALR
CC
Y
R
HPC
2
MINUTES
L2
T2
T1
L1
Yellow/Red
Module
Outdoor
Sensor
Temp
Contactor
Yellow/RedYellow/Red
Compressor
Compressor
Control
MIS-4095