Honeywell 42011076-003 manual Description, Table of Contents

CM900 Wireless

Installation Guide

CM927 / CM921 Wireless Programmable Room Thermostat & HC60NG Receiver Box

Description

The Honeywell CM900 Wireless (CM927 or CM921) is a modern wireless programmable room thermostat based on Honeywell’s proven programming philosophy. To further improve the ease of use, this product includes an extra large LCD display with backlighting and LoT Technology to assist customers during daily use.

The CM927/921 room thermostat communicates with the HC60NG receiver box on an 868MHz Radio Frequency (RF) band to control a single heating system component such as a boiler, pump or zone valve. Neither product will communicate with other RF products that use different frequencies or communication protocols.

Note: The RF link between the individual room thermostat (CM927/921) and receiver box (HC60NG) in system packs provided by Honeywell is pre-configured at the factory and therefore SHOULD be installed at the same site. This makes the installation process fast and easy, but if products from individual system packs are separated, or mixed with other pre-configured system packs during installations please refer to section 5.1 Binding / Rebinding Procedure to bind the desired units together and allow them to communicate with each other.

Table of Contents

Section			Page
1)	Installation Information			2
2)	Installing the CM900 Wireless System			3
	2.1	Installing the Receiver Box		3
	2.2	Installing the Room Thermostat		4
		2.2.1 Power Up		4
		2.2.2 RF Communication Check		4
		2.2.3 Locating the Room Thermostat		5
	2.3	System Check		5
3)	Basic Operation of the System			6
	3.1	Automatic Operation		6
	3.2	Temporary Manual Override		6
	3.3	Communication Loss		6
4)	Installer Mode			6
	4.1	Entering Installer Mode		7
	4.2	HC60NG Receiver Box Fail-Safe Mode Setup		7
	4.3 Using the Room Thermostat for Specific Applications...			8
	4.4 Using the Special Features of the Room Thermostat.			. 8
	4.5	Installer Parameters Table		9
		4.5.1 Category 1 - Room Thermostat Settings		9
		4.5.2 Category 2 - System Settings		10
5)	Additional Installation Information			11
	5.1	Binding / Rebinding Procedure		11
	5.2	Multi-Zone System		11
6)	Trouble Shooting			12
	6.1	Trouble Shooting Guide		12
	6.2	Diagnostics Mode		12

42011076-003 R2