6 switching off the central heating, 2 prolonged absence, Control panels s3 and b3 – DE DIETRICH GTU C 330 User Manual
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24/11/08 - 300017846-001-B
GTU C 330
6. Switching off the central heating
6 Switching off the central heating
6.1 Stopping the central heating or activating the Summer mode
Control panels DIEMATIC-m3 and K3:
The panel must always be supplied with 230V
voltage:
- to ensure the anti-grip of the heating pump,
- to ensure Titan Active System® operation when a titanium anode
is protecting the DHW tank.
Use the mode:
- "summer" to shut down the heating.
- "antifreeze" to shut down the boiler if you are to be absent.
Control panels S3 and B3
1. Set the On/Off switch to O.
Z
See: Control panel instructions
Z
See: Burner instructions
2. Switch off the boiler electrical power supply
3. Close the fuel supply.
6.2 Prolonged absence
6.2.1
Precautions required in the case of long boiler stops (one or more years)
• The boiler and the chimney must be swept carefully.
• Close all the doors of the boiler to prevent air from circulating inside the boiler.
• We advise removing the pipe which connects the boiler to the chimney and to close off the nozzle with a cover.
6.2.2
Precautions required if the heating is stopped when there is a risk of freezing
We recommend the use of a correctly dosed antifreeze agent to prevent to the heating circuit from freezing.
If this cannot be done, drain the system completely.
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