Additional Installation Information; Binding / Rebinding Procedure; Multi-Zone System - Honeywell CM900 Installation Manual

5) Additional Installation Information

5.1 Binding / Rebinding Procedure

The binding operation described below is required if:
• Any of the system components (room thermostat or receiver box) are replaced.
• The receiver box has incorrect or no binding data stored (e.g. when pre-bound system pack components
have been mismatched).
NOTE: During the binding procedure keep approximately 1m distance between the room thermostat and
the receiver box.
To bind/rebind:
1. Press and hold the receiver box push button for 15 seconds to reset any previously stored data. After
15 seconds the red LED will change to flashing 0.1sec on/0.9sec off.
NOTE: After 5 seconds the red LED will start to flash 0.5sec on/0.5sec off, but continue to hold the
button).
2. Release the push button.
3. Press and hold the receiver box push button for 5 seconds to enter the binding mode. The Red LED will
start flashing at 0.5sec on/0.5sec off to confirm the binding mode has been entered.
4. Move the room thermostat slider to the OFF position and press the
with the button. The unit will display InSt and 'CONTROL BINDING'.
5. Press the green button to send the binding signal out to the receiver box. The red LED is switched off
to confirm successful binding operation. If the red LED still flashes push the button again until binding
is successful.
6. Now go to Section 2) Installing the CM900 Wireless System to setup the system.

5.2 Multi-Zone System

Multiple room thermostats and receiver box sets can also be used to control multi-zone systems and the
CM927/921 room thermostat is compatible with a variety of other Honeywell products including HR80
radiator controllers and HCE80 underfloor heating controllers. If you intend to use it in this way additional
installation and user instructions can be obtain by contacting the address at the end of this guide.
NOTE: Some of the labels supplied with the pack are for use in multizone applications.
Installation Guide
and buttons together along
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