Building Technologies
74 319 0620 0 a
17.04.2008
21/152
en
7. Note with underfloor and ceiling heating systems:
The limit thermostat must be set to the correct value.
During the functional test, the flow temperature may not exceed the maximum permissible
level (usually 55 °C). If it does, proceed immediately as follows:
– Either close the valve manually, or
– Switch off the pump, or
– Close the pump isolating valve
8. Switch on power supply. The display must show something (e.g. time of day). If not, the
reason may be one of the following:
– No mains voltage present
– Main fuse defect
– Main switch not set to ON
General information about operation
•
Setting elements:
– Heating curve
– Setting knob
– Display; one operating line is assigned to each setting
– Buttons for selecting and readjusting the values:
Selecting the next operating line below
Selecting the next operating line above
Decreasing the displayed value
Increasing the displayed value
•
Adopting a setting value:
The setting value is adopted by selecting the next operating line (or: Press Info button or one
of the operating mode buttons)
•
Entering --.- or --:-- :
Press
or
until the required display appears
•
Block jump function:
To select a single operating line quickly, two button combinations can be used:
Press
and
for selecting the next line block above
Press
and
for selecting the next line block below
