Purging The Gas Line; Checking The Ventilation And Extract Air Apertures And The Flue Connection - Buderus Logano plus GB312 Installation And Maintenance Instructions Manual

6
Commissioning
6.6

Purging the gas line

B Undo the pressure test nipple plug for the gas supply
pressure and purging (
revolutions, and push on 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 plug.
B Close the gas tap.
Fig. 28 Purge the gas line (boiler size 90/120 kW)
1 Pressure test nipple for testing the gas supply pressure
and for purging
Fig. 29 Purging the gas line (boiler size 160 kW)
1 Pressure test nipple for testing the gas supply pressure
and for purging
32
Fig. 28, 29, 30 [1]) by two
Fig. 30 Purging the gas line (boiler size 200 to 280 kW)
1 Pressure test nipple for testing the gas supply pressure
and for purging
6.7 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 rectified
immediately.
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 user in writing of the
problem and associated risk.
B Check whether the flue connection complies with the
applicable requirements (
B Have any faults rectified immediately.
Logano plus GB312 - Subject to technical modifications.
Chapter 3.4, page 14).