Checking And/Or Replacing The Fan Unit - Buderus Logamax plus GB162-80 kW Service Instructions Manual

section 86

Checking and/or replacing the fan unit

H
DANGER OF FATAL ACCIDENT
A
due to electric shock!
DANGER OF FATAL ACCIDENT/FIRE
from explosive fumes.
All work on gas pipes and fittings must be carried out by
authorized gas technicians.
 While carrying out these activities check all sealing
rings and gaskets for damage, deformation and signs of
aging and replace if required.
 After carrying out these activities, check the system for
leaks on the gas side and/or the flue gas side.
 Take the boiler out of operation, see section 72 and 73.
 Close the gas stop valve as indicated in section 74.
 Remove the power supply plug(s) of the gas regulation
valve [1].
 Undo the union from the gas supply [2].
 Remove both the fan unit power supply cord plug [1] and the
fan unit tacho cable plug [2].
Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!
 Pull the air suction pipe from the venturi pipe [3].
 Open the 4 snap closures of the burner cover.
2
 Remove the gas/air unit including the burner cover [1] by
moving it in the direction indicated by the arrow.
1
Actions 7
63