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Honeywell CM921 Wireless Programmable Room Thermostat User Guide

opERATING THE CM921  
Choosing the Operating Mode  
The thermostat can operate in three different modes: Automatic, Manual or Off. To  
set the operating mode move the slider switch to the desired position. The screen  
indicates which mode is currently active by displaying AUTO, MAN or OFF.  
AUTO (automatic) mode  
Automatic mode sets the thermostat to follow the temperature program (default  
or personalised). Operating the thermostat in this mode is the best way to  
maintain a high level of temperature comfort whilst maximising your energy  
savings.  
MAN (manual) mode  
Manual mode sets the thermostat to act as a simple thermostat with a ixed  
setpoint throughout the day. The setpoint can be adjusted from 5°C to 35°C  
by using the  
temperature until another operating mode or temperature is selected.  
or  
buttons. The thermostat will continue to maintain this  
OFF mode  
Off mode sets the thermostat to control to a minimum temperature setting of 5°C  
(default) that acts as a frost protection measure for your home. This value can be  
adjusted by calling your installer.  
Adjusting the Time  
To adjust only the time during normal operation use the  
the time and press the green  
or  
button again to conirm any changes.  
buttons to adjust  
During Normal Operation  
Temperature Enquiry  
In AUTO and MAN operating modes the thermostat will display the current room  
temperature, which is indicated by the text ‘ROOM TEMP’ displayed on the  
screen. To review the programmed ‘target’ temperature (the temperature which  
the thermostat is trying to maintain) press the button. This ‘target’ temperature  
value will be displayed lashing and the text ‘TARGET TEMP’ will be shown for 5  
seconds before returning to the current room temperature value.  
In OFF operating mode the thermostat again displays the current room  
temperature, as above, but when the button is pressed the text ‘FROST TEMP’  
is displayed indicating the set value to protect your home. To modify this value  
please contact your installer.  
firealarmresources.com  
GeneralDetails
NameHoneywell CM921 Wireless Programmable Room Thermostat User Guide
MakeHoneywell
LanguageEnglish
FiletypePDF (Download)
File size0.31 MB
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Honeywell CM921 Wireless Programmable Room Thermostat User Guide