Buderus 800 - Page 25

Initial start-up 2
Wall-mounted condensing gas boiler Buderus 800 - Subject to modifications resulting from technical improvements!
25
2.1.6 Purging air from the gas supply pipe
 Loosen the screw plug on the gas connection and air
purging test nipple on Honeywell gas units two turns
(fig. 29, item 1), fully unscrew the plug on SIT gas
units (fig. 30, item 1) and fit the hose.
 Purge system and appliance as per relevent proce-
dures, IGE/UP/1b. Ensuring all safety requirments
are met.
fig. 29 Purging the gas supply pipe (Honeywell gas units)
fig. 30 Purging the gas supply pipe (SIT gas units)