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
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 | |
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| 2.2.1 Power Up | 4 | |
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| 2.2.2 RF Communication Check | 4 | |
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| 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 | 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 | |
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| 4.5.1 Category 1 - Room Thermostat Settings | 9 | |
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| 4.5.2 Category 2 - System Settings | 10 | |
5) | Additional Installation Information | 11 | ||
| 5.1 | Binding / Rebinding Procedure | 11 | |
| 5.2 | 11 | ||
6) | Trouble Shooting | 12 | ||
| 6.1 | Trouble Shooting Guide | 12 | |
| 6.2 | Diagnostics Mode | 12 | |