CM907-
TRV
CHRONOTHERM
EN0H 8555 UK07 R0 09/06
5
Parameter
Installer Set-
Up Number /
Abbreviation
(Press + or -
keys to select)
Factory Setting
Optional Setting
Installer Set-
Up Category
(Press
PROG keys
‘< or >’ to
select)
Display
Description
Display/Setting
Description
Category 1: Thermostat Parameters
AM-PM / 24hr
Display
1:Cl
24
24 hr clock display
12
12 hr AM / PM clock display
1
RESET Time /
Temperature
Program
2:rP
1
Time / Temperature
profile set to factory
default
Changes to 0 when
one of the time/temp
profiles are changed
0
1
Time / Temperature are
as programmed
To restore the factory
profile set to 1
1
Automatic
Summer/Winter
Time Chqnge
3:tC 1
Automatic
Summer/Winter Time
Change Enabled
0 Automatic
Summer/Winter Time
Change Disabled
1
Backlight Display
5:bL
1
Backlight Display
Enabled
0 Backlight
Display
Disabled
1
Upper
Temperature Limit
6:uL
35
35°C Upper Temp.
Limit
21 to 34
21°C to 34°C
adjustment in 1°C steps
1
Lower
Temperature Limit
7:LL
5
5°C Lower Temp.
Limit
6 to 21
6°C to 21°C adjustment
in 1°C steps
1
Optimisation
8:0P
0
Optimisation disabled
1
Optimisation enabled
1
Remote Control
Setpoint (e.g. via
telephone module)
9:tS 0
Disabled
1
Enabled
1
Second
Temperature
Sensor
10:SS
0
No sensor fitted
1, 2
1 - Outside Temperature
Sensor fitted
2 - Remote Temp.
Sensor fitted
1
Temperature
Offset
12:tO
0
No offset
-3 to +3
-3°C to +3°C adjustment
in 0.1°C steps
1
Proportional Band
Width
13:Pb 1.5
1.5°C
Proportional
Band
1.6 to 3.0
1.6°C to 3.0°C
adjustment in 0.1°C
steps
1
Reset Parameters
to Factory
Defaults
19:FS
1
All settings held are
the factory defaults.
Changes to 0 when
one of the parameter
values are changed
0
1
Settings are as modified
above
To restore the factory
profile set to 1
1
‘Category 2: System Parameters (You must press the ‘>’ program key to enter this section)
Minimum boiler
ON Time
1:Ot
1
1 minute minimum ON
time
2 to 5
2 - 2 minutes
3 - 3 minutes
4 - 4 minutes
5 - 5 minutes
2
Cycle Rate
2:Cr
6
6 cycles per hour
(cph) for gas boilers,
zone valves and fan-
coil
3, 9, 12
3 - 3 cph
9 - 9cph
12 - 12 cph
2
Electric Heat
3:Eh
0
Applications < 3A
1
Applications 3 - 5A
2
Heat / Cool
Change
4:HC 0
Disabled
1 Enabled
2
