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		To prevent electrical shock and/or
		convertible to power open, spring close		equipment damage, disconnect electric
	Recommended Thermostats
				power to system at main fuse or circuit
	•	1F78-151	(5+2 programming)
				breaker box until installation is complete
	•	1F78-144	(non-programmable)

•1F85-0471 (5+1+1,5+2,0 programming)

	• 1F80-0471 (5+1+1,5+2,0 programming)			SAVE THESE INSTRUCTIONS FOR
	• 1F97-1277 (7, 5+1+1,0 programming)			FUTURE USE!
	• 1F95-1277 (7, 5+1+1,0 programming)			Failure to read and follow all instructions
	• 1F85RF-275 (5+1+1,5+2,0 programming) (wireless)
				carefully before installing or operating
	Terminal	Description		this control could cause personal injury
				and/or property damage.
	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

Form 37-6863A

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© 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				Automatic Resetting
Zone Calling Indicators				Fuse

Mounting Keyholes

Two at Top also.

	Table of Contents		Pump Controls, power transformer, Outdoor Air Sensor and
			Leaving Air Sensor are wired.
	Installation	2
	Operation	3	When installing the CMM-3U panel it is important to pick a
	Set-Up for		central location where it is most convenient to bring all the
	Various HVAC Equipment	3	wires. Most often this is at the furnace or air handler. It is
	Leaving Air Sensor Air Sensor	3-4	often the most convenient location and closest to power, the
			HVAC unit controls and the zone dampers when typically
	Outdoor Air Sensor	4	located at or near the plenum.
	Timers	4	The CMM-3U panel case is made of sturdy ABS plastic and
	Checkout	4
	Wiring	4-5	can be mounted to any flat surface. It is recommended that
			the panel be mounted to a wall or return plenum and NOT on
	Troubleshooting	5-6
			the furnace or plenum where it will be in contact with the
	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