CM907-TRV CHRONOTHERM
 
 
  3  EN0H 8555 UK07 R0 09/06 
INSTALLER SET-UP 
Specific Applications   Setting  What do you need to change? 
 
Cycle/ 
Hour 
Minimum 
ON time 
(in minutes) 
Note : 
a.  To change Cycle/Hour, please go to parameter n. 2, category 2 
in the installer set-up mode. 
b.  To change Minimum ON Time, please go to parameter n. 1, 
category 2 in the installer set-up mode. 
Heating Gas Boilers 
(<30KW) 
6  1  No action required 
 
Oil Boiler  3  4  1.  Set Minimum ON Time to 4 minutes.  
2.  Set Cycle/Hour to 3. 
 
Thermal Actuator  12  1  Set Cycle/Hour to 12.  
 
Zone valve  6  1  No action required. 
 
Electric heating 
(for applications 
<8A) 
12  1  1.  Configure the thermostat for electric heating (set parameter n.3, 
category 2 in the installer set up mode to 1). 
2.  Set Cycle/Hour to 12. 
Air 
conditioning 
  
1.  Configure the thermostat to allow switching between heating 
and cooling modes (set parameter n.4, category 2 in the 
installer set-up mode to 1) 
2.  Set the thermostat accordingly to the required mode of 
operation (heating or cooling) by pressing the TEMP 
 or   
buttons together for 5 seconds.
 Modify the cooling program 
as required. 
 
Heat Pump/ 
Air conditioner 
3  4  1.  Set Minimum ON Time to 4 minutes. 
2.  Set Cycle/Hour to 3. 
2 
Fan coil  6  1  No action required. 
In Installer set-up we can: 
❑  Set-up specific applications 
❑  Enable special features 
❑  Establish support for optional accessories 
To enter the installer set-up mode:
a)  Move the slider switch to the OFF position. 
b)  Press and hold the INFO 
i button and the two program 
buttons ‘< >’ together.  
c)  The unit will display the first parameter of installer 
parameter group category 1 (from n.1 to n.19). 
d) Press the TEMP 
 or   buttons to change the factory 
setting. The display will flash indicating that a change has 
been made. 
e)  Press the green OK button to confirm this change and the 
display will stop flashing. 
f) Press the 
 + button to go to the next parameter. 
g)  Press the program button > to go to category 2 in the 
Installer mode (from n.1 to n.5). 
h)  To exit the installer mode, move the slider switch to the 
AUTO or MAN positions. 
 
Abbreviated Set-Up Description 
e.g. Cl = Clock Format 
Factory Setting or New Choice
Press TEMP   or   to change
e.g. 12 = AM/PM Format
24 = 24hr Format 
Installer Set-up Number
(Press  + or - to change)
e.g. 1 = Clock Format
Brief Description of the 
Parameter Function.