7
Commissioning the heating system
Logano plus GB402 - Subject to technical modifications!
31
7.5
Purging the gas line
B
Undo the threaded plug on the test nipple for gas
supply pressure and venting by two turns and affix the
hose.
B
Slowly open the gas tap.
B
Flare off escaping gas via a hydraulic seal. Remove the
hose when no more air is expelled, and tighten the
threaded plug.
B
Close the gas tap.
Fig. 28 Purging the gas line
1
Test nipple for measuring the gas supply pressure and for
venting
7.6
Checking the ventilation and extract
air apertures and the flue
connection
B
Check whether the apertures for ventilation and extract
air comply with locally applicable regulations or those
of your gas supply utility. Have any faults removed
immediately.
B
Check that the flue connection complies with all
current regulations (
Æ
Chapter 6.1, page 18).
B
Have any faults removed immediately.
7.7
Preparing the heating system for
operation
B
Open the fuel supply at the main shut-off valve and
upstream of the gas valve.
B
Switch on the heating system emergency stop switch
(if installed) and/or insert/set the corresponding
domestic fuse/circuit breaker.
DANGER:
Risk to life through poisoning!
An insufficient supply of air can result in
dangerous escape of flue gas.
B
Never block ventilation and extract air
apertures or reduce their size.
B
The boiler must not be operated, unless
you immediately remedy the fault.
B
Inform the system operator in writing of the
problem and associated risk.
