Replacing/Cleaning The Siphon; Checking/Replacing The Pressure Sensor; Pollution; Replacing/Cleaning The Heat Exchanger - Buderus Logamax plus GB162-80 kW Service Instructions Manual

section 127 Replacing/cleaning the siphon
 Switch off the power supply to the heating system, see
section 72.
 Remove the casing of the pump group as indicated in
section 73.
 Remove the rubber sleeve including the ribbed pipe [1].
 Turn the siphon a quarter turn in a counterclockwise
direction [2].
 Remove the siphon by pulling it downwards [3].
 Clean the siphon if necessary.
 Install the new or cleaned siphon.
 Install the casing of the pump group in reverse order of
removal.
 Switch on the power supply to the heating system, see
section 79.
Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!
section 128 Checking/replacing the pressure sensor;
pollution
 While carrying out these activities check all sealing rings and
gaskets for damage, deformation and signs of aging and
replace if required.
 Take the boiler out of operation and drain the boiler as
instructed in section 75.
 Disconnect the plug of the pressure sensor [1].
 Remove the clamp spring [2].
 Remove the pressure sensor [3].
 Check the pressure sensor for dirt and clean it if necessary.
 Install the new or cleaned pressure sensor in reverse order.
 Fill and purge the heating system and put the boiler into oper-
ation, see section 78.
section 129 Replacing/cleaning the heat exchanger
H
DANGER OF FATAL ACCIDENT
A
due to electric shock!
DANGER OF FATAL ACCIDENT/FIRE
from explosive fumes.
All work on gas pipe work 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
ageing and replace if required.
 After carrying out these activities, check the system for
A
leaks on the gas side and/or the flue gas side.
DAMAGE TO THE DEVICE
due to damage to the coating.
 The heat exchanger has been coated. Avoid damaging
this coating. Do not use steel-bristle brushes to clean
the various parts and components.
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