Honeywell CMT927 User Manual page 18

fAq's & TRoublESHooTING
Can I use my CM927 to control my air-conditioning system?
Yes, if your system has been set up correctly you can use your thermostat to control the
cooling. To switch the thermostat between heating and cooling modes press the
and buttons together for 5 seconds in any of the product operating modes (AUTO,
MAN or OFF). The text 'COOLING' will be displayed for a moment to indicate the cooling
operation is now active. The factory default program for cooling is specified in the table
below, but this can be modified in the same way as the default heating program:
Monday to friday
period
Time
Temperature
Saturday & Sunday
period
Time
Temperature
How do I operate an HR 80 radiator controller with my CM927?
1. Display: Shows current set temperature and device
information.
2. Adjustment dial on the operating unit: Allows manual
temperature adjustment.
3. Symbol for the RF connection to the command centre.
4. Symbol for separating the operating unit and
coupling module.
5. Set temperature.
6. Symbol for actual value coming from the room
thermostat (see installation manual 4.5.2).
Changing the set temperature with adjustment dial
The setpoint is normally defined and controlled at the room thermostat. To override the
local setpoint, turn the adjustment dial of the radiator controller unit until the desired
set temperature (between 5 - 30 °C) is displayed. This local setpoint override remains
valid until a time program from the room thermostats overwrites it automatically.
In order to open or close the radiator valve completely turn the adjustment dial
until "OFF" (closed) or "ON" (opened) is displayed. (If temperature limits are set,
"ON"/"OFF" is not displayed - see installation manual 4.5.1).
For more information please visit http://www.honeywelluk.com/download.aspx
18
1 2
6:30 8:00
24°C 28°C
1 2
8:00 10:00
24°C 24°C
3 4
12:00 14:00
24°C 28°C
3 4
12:00 14:00
24°C 24°C
2
3 4
5 6
18:00 22:30
24°C 24°C
5 6
18:00 23:00
24°C 24°C
1
5 6
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