Taking The System Out Of Service - Buderus 500 Series User Manual

Notes
11

Taking the system out of service

Push the mains power switch (fig. 5, item 1) to "0".
Close the gas service valve by turning it clockwise (fig. 8,
item 1).
1
1: Gas valve closed
fig. 8 Gas service valve
Frost protection
The boiler has an automatic frost protection. When the CH
flow temperature drops below 7 °C then the boiler will start up.
26
2
2: Gas valve open
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