8
Boiler inspection and maintenance
Logano G234X – 6 720 804 886 (2012/08)24
8.4 Preparing boiler for cleaning
▶ Decommission the heating system ( page 23).
▶ Remove front panel of boiler
Fig. 31 Remove front panel of boiler
[1] Locking screws
[2] Boiler jacket
[3] Front panel of boiler
▶ Turn the gas valve ON/OFF button [1] clockwise to the "OFF" position.
Do not use force.
Fig. 32 Gas valve
[1] ON/OFF button (at "OFF" position)
8.5 Cleaning the boiler
The boiler can be cleaned with brushes and/or by a wet method.
Cleaning equipment is available as accessory.
8.5.1 Cleaning the boiler with cleaning brushes
Remove burner:
▶ Disconnect all electrical power to your heating system.
▶ Close the main shutoff valve.
▶ Disconnect pilot gas pipe [6] from the gas valve [8].
▶ Loosen igniter sensor cable [3] from the automatic igniter.
▶ Tie gas line [2] with wire or cord (secure).
▶ Loosen the retaining screw [1] on the gas feed line
DANGER: Risk of fatal injury from electric current when
appliance is opened up!
▶ Before opening the boiler:
Disconnect the heating system from the electrical
power supply by means of the emergency shutoff
switch or the heating system circuit breaker on the
main fuse panel.
▶ It is not sufficient just to switch off the control panel.
▶ Take measures to ensure that the heating system
cannot be switched on again unintentionally.
DANGER: Risk of fatal injury from the explosion of
flammable gases!
▶ Operations on the gas pipes may only be carried out
by a properly licensed gas contractor.
▶ Wait five (5) minutes until all gas residues have
dissipated. Check whether there is any smell of gas,
including at floor level. If you smell gas, STOP!
Check that the gas shut-off is closed. Repeat the odor
test. If you do not smell gas, go to the next step.
DANGER: Risk of fatal injury from electric shock!
If cables are connected incorrectly, the system may not
operate correctly with possibly dangerous
consequences.
▶ When carrying out servicing work, label all connection
cables before disconnecting them.
▶ After maintenance test the heating system for proper
function.
DANGER: Risk of fatal injury from electric current when
appliance is opened up!
▶ Before opening the boiler:
Disconnect the heating system from the electrical
power supply by means of the emergency shutoff
switch or the heating system circuit breaker on the
main fuse panel.
▶ It is not sufficient just to switch off the control panel.
▶ Take measures to ensure that the heating system
cannot be switched on again unintentionally.
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