Press the Set button (17) to store
B
the settings.
The display shows
To cancel the holiday programme:
Press and hold the Holiday button,
B
, (18) for more than 2 seconds.
3.3.4 Resetting to default
settings (19)
Press Reset button (19).
B
The clock will start flashing and stop.
Until the time is set, the TRZ 12-2
will keep the heating at a constant
21°C.
3.3.5 Technician's functions
Calibrating the room temperature
sensor
Calibrating the room temperature sen-
sor changes the temperature display.
The temperature can be adjusted by
± 3 K (°C) in 1-K increments:
While Automatic mode is active,
B
press the Set button (17) and at the
same time press and hold the
button for more than 2 seconds.
Temperature display shows 0.0°C
(default setting).
Hold Set button (17) and release
B
button.
Set room temperature sensor cali-
B
bration using
6 720 610 625 (01.11)
.
/
buttons.
Press the Set button (17) to store
B
the setting.
Setting the switching differential
The switching differential can be set to
± 1 K (°C) or ± 0.5 K (°C):
While Automatic mode is active,
B
press and hold the Set button (17)
and the Hour button (3) simultane-
ously for more than 2 seconds.
Temperature display shows
H 1.0°C (default setting).
Set switching differential using
B
/
buttons.
Press the Set button (17) to store
B
the setting.
TRZ 12-2
13