Buderus Logano GC 124 II User Manual page 9

Checking the vent damper
WARNING: Risk of life due to leaking flue gases.
B Verify the functionality and operability of the vent
damper.
B Check the position of the vent damper. The damper must be fully open
(vertical). When burner is on flue gases must not escape from the
open draft hood.
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Fig. 14 Checking vent damper
[1] Open draft hood
[2] Vent connection
[3] Vent damper
[4] Damper blade position indicator
[5] Vent damper motor
[6] Flue gas collector
[7] Boiler
Checking aquastat
Check the function of the maximum aquastat to make sure that it
switches the boiler off as soon as the boiler water temperature set at the
aquastat is reached. Record the result in the start-up protocol.
B Set aquastat to its desired setting.
B Replace front door and close.
Fig. 15 Checking temperature control
[1] Adjustment keypad
Logano GC 124 II – 6 720 804 435 (2012/09)
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6 720 804 435-14.1T
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6 720 804 435-15.1T
Final start-up procedures
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