Boiler inspection and maintenance
11
49
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano GA124 special gas-fired boiler • Issue 04/2005
11.4 Preparing boiler for cleaning
1.
Take the boiler out of operation (
Î
Chapter 10.1,
page 47).
2.
Remove front panel of boiler (
Î
Fig. 35, page 36).
3.
Turn gas valve ON/OFF button clockwise to OFF
position. Do not use force.
WARNING!
RISK TO LIFE
from electric shock.
z
Before opening a unit: disconnect
electrical power completely and lock to
prevent accidental reconnection.
WARNING!
RISK TO LIFE
from explosion of flammable gases.
z
Never work on gas lines unless you are
licensed for this type of work..
Fig. 48
Gas valve
1
ON/OFF button (at ON position)
1
WARNING!
RISK TO LIFE
from explosion of flammable gases.
z
Wait five (5) minutes until all gas
residues have dissipated. Check
whether there is any smell of gas,
including at floor level. If there is a gas
odor: STOP! Follow instructions in
section "B" of the safety instructions on
Î
page 38 If there is no sign of a gas
odor, continue with the next step.