White Rodgers CMM-3UK, CMM-3U Installation Instructions

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

24V dampers are power close, spring open and are convertible to power open, spring close

Recommended Thermostats

• 1F78-151 (5+2 programming)

• 1F78-144 (non-programmable)

• 1F85-0471 (5+1+1,5+2,0 programming)

• 1F80-0471 (5+1+1,5+2,0 programming)

• 1F97-1277 (7, 5+1+1,0 programming)

• 1F95-1277 (7, 5+1+1,0 programming)

• 1F85RF-275 (5+1+1,5+2,0 programming) (wireless)

Terminal Destination

W2/E….…… 2nd Stage Heat (Emergency heat for Heat Pumps) G…………… Fan Relay Y…………… Compressor R…………… Power for Heating/Cooling W/OB……… Heat Relay/Changeover Valve for Heat Pump C…………… Common Wire

Description

To prevent electrical shock and/or

equipment damage, disconnect electric

power to system at main fuse or circuit

breaker box until installation is complete

SAVE THESE INSTRUCTIONS FOR

Failure to read and follow all instructions

carefully before installing or operating

this control could cause personal injury

and/or property damage.



FUTURE USE!

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Form 37-6863A

System Mode Indicator Power Indicator LED

Zone Terminal Blocks for Zone Thermostats

CLAS and COAS

Terminal Blocks

Zone Calling Indicators

Sensor Limits

Mounting Keyholes Two at Top also.

Table of Contents

Installation 2 Operation 3 Set-Up for Various HVAC Equipment 3 Leaving Air Sensor Air Sensor 3-4 Outdoor Air Sensor 4 Timers 4 Checkout 4 Wiring 4-5 Troubleshooting 5-6 Wiring Diagram 6

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

HVAC Equipment Connections

Zone Terminal Blocks for Zone Dampers

24V Transformer Terminal Blocks

Automatic Resetting Fuse

Pump Controls, power transformer, Outdoor Air Sensor and Leaving Air Sensor are wired.

When installing the CMM-3U panel it is important to pick a central location where it is most convenient to bring all the wires. Most often this is at the furnace or air handler. It is often the most convenient location and closest to power, the HVAC unit controls and the zone dampers when typically located at or near the plenum.

The CMM-3U panel case is made of sturdy ABS plastic and can be mounted to any flat surface. It is recommended that the panel be mounted to a wall or return plenum and NOT on the furnace or plenum where it will be in contact with the 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.

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.

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Form 37-6863A

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