Page GB-41
Maintains heating and domestic hot water
operation during a fault.
Notify heating specialist!
If the key is pressed for longer than five seconds, the con-
trol unit switches to manual operation. The required boiler
temperature is set using the rotary pushbutton. All pumps
are in operation without limitation. Mixing valves, if pre-
sent, are de-energized and can be operated by hand,
depending on the heat demand.
The return to the previously selected operating mode is
carried out by pressing key
¡¡
again.
Important!
- The domestic hot water temperature reaches
the level of the set boiler temperature.
Danger of scalding if set too high!
- To protect floor heating from overheating during
manual operation, suitable safety measures (e.g.
pump shutdown via placed thermostat) should be
implemented.
Manual operation
(during faults)
!
-
772255
00005588..55
MMAANNUUAALL
°C
°C
Push for approx. 5 seconds
Desired temperature (setvalue, flashing)
Current temperature (actual value, static)
Temperature
change
Accept, return to standard display
Setting range:
Minimum temperature of boiler control
unit to maximum temperature of boiler
control unit
!
GB
8A521100_GB.qxd 10.11.2004 12:05 Seite 41
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