CMM-3U & CMM-3UK Zoning Panel
Installation & Operating Instructions
Product Data
•Single Stage gas and electric systems
•Multi Stage (2H/1C) gas and electric systems
•Heat Pump (3H/1C)
•2-3 zones
•5-Year Warranty
Specifications
•Construction: ABS Plastic
•Dimensions: 7 ⅝” x 7 ¼” x 1 ⅜”
•Voltage: 24 Volts AC, 50/60 Hz
•Operating Temperature: 0°- 120°
•Shipping/Storage Temperature: -20°- 140°
•Humidity Range: 5% - 95% Non-Condensing
Kit Contents (CMM-3UK)
•CMM-3U
•CLAS (leaving air sensor)
•COAS (outdoor air sensor for heat pumps)
•24V Transformer
Recommended Dampers
•CRDS – round damper (24V)
•CZDS – rectangular, side mount motor (24V)
•CZDB – rectangular, bottom mount motor (24V)
•CSPRD – static pressure relief dampers
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24V dampers are power close, spring open and are |
To prevent electrical shock and/or |
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convertible to power open, spring close |
equipment damage, disconnect electric |
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Recommended Thermostats |
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power to system at main fuse or circuit |
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1F78-151 |
(5+2 programming) |
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breaker box until installation is complete |
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1F78-144 |
(non-programmable) |
•1F85-0471 (5+1+1,5+2,0 programming)
• 1F80-0471 (5+1+1,5+2,0 programming) |
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SAVE THESE INSTRUCTIONS FOR |
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• 1F97-1277 (7, 5+1+1,0 programming) |
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FUTURE USE! |
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• 1F95-1277 (7, 5+1+1,0 programming) |
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Failure to read and follow all instructions |
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• 1F85RF-275 (5+1+1,5+2,0 programming) (wireless) |
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carefully before installing or operating |
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Terminal |
Description |
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this control could cause personal injury |
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and/or property damage. |
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Destination |
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W2/E….…… |
2nd Stage Heat (Emergency heat for Heat Pumps) |
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G…………… |
Fan Relay |
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Y…………… |
Compressor |
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R…………… |
Power for Heating/Cooling |
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W/OB……… |
Heat Relay/Changeover Valve for Heat Pump |
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C…………… |
Common Wire |
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Form 37-6863A
1 of 6
© 2004 White-Rodgers by Permission
System Mode Indicator |
Power Indicator LED |
HVAC Equipment Connections
Zone Terminal Blocks for Zone Thermostats
Zone Terminal Blocks for Zone Dampers
CLAS and COAS
Terminal Blocks 24V Transformer
Terminal Blocks
Sensor Limits |
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Automatic Resetting |
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Zone Calling Indicators |
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Fuse |
Mounting Keyholes
Two at Top also.
Table of Contents |
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Pump Controls, power transformer, Outdoor Air Sensor and |
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Leaving Air Sensor are wired. |
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Installation |
2 |
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Operation |
3 |
When installing the CMM-3U panel it is important to pick a |
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Set-Up for |
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central location where it is most convenient to bring all the |
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Various HVAC Equipment |
3 |
wires. Most often this is at the furnace or air handler. It is |
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Leaving Air Sensor Air Sensor |
3-4 |
often the most convenient location and closest to power, the |
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HVAC unit controls and the zone dampers when typically |
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Outdoor Air Sensor |
4 |
located at or near the plenum. |
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Timers |
4 |
The CMM-3U panel case is made of sturdy ABS plastic and |
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Checkout |
4 |
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Wiring |
4-5 |
can be mounted to any flat surface. It is recommended that |
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the panel be mounted to a wall or return plenum and NOT on |
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Troubleshooting |
5-6 |
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the furnace or plenum where it will be in contact with the |
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Wiring Diagram |
6 |
excessive hot temperatures.. The panel can be located in an |
attic space or in an enclosed cabinet of a rooftop unit. Insure the panel is not in direct exposure to the elements.
INSTALLATION
The CMM-3U Control is a three (3) zone control panel that can be used with conventional single stage, two stage heating and cooling, heat pumps with or without dual fuel and up to three stages of heating. The CMM-3U panel is the central control panel that all zone dampers, zone thermostats, Heat
The cover easily removes from the case by pulling firmly and separating the cover from the case exposing the circuit board. There are 4 key-hole mounting points in each corner of the case. The case has openings in the rear of the case as well as the side for all wiring. Wiring can come from the back as well as the side in order to make a neat installation.
Form 37-6863A
2 of 6
© 2004 White-Rodgers by Permission