40
Constant temperature without time program (vacation)
1. Switch to manual mode with the
AUTO
MANU
button.
MANU
is displayed.
2. Set the temperature using the adjustment dial.
This temperature is retained until you return to Auto mode.
Heating break (summer)
If the central heating system is switched off in summer, you can ensure that
the batteries of the HR 40 are not wasted.
1. Switch to manual mode with the
AUTO
MANU
button.
2. Turn the adjustment dial clockwise until
is displayed in the display.
The radiator valve now remains open and the HR 40 does not control.
Radiator off
1. Switch to manual mode with the
AUTO
MANU
button.
2. Turn the adjustment dial anti-clockwise until
is displayed in the
display.
The radiator valve is closed.
Note: Frost protection is still ensured.
Disabling the operating elements (child-proofing)
•
Press the
AUTO
MANU
and
AUTO
MANU
buttons simultaneously for 3 seconds.
"
" is displayed.
Undoing the blockage of the operating elements
•
Press the
AUTO
MANU
and
AUTO
MANU
buttons simultaneously again for 3 seconds.
