Installing The Boiler - Baxi LUNA3 COMFORT HT Gebrauchsanleitung Für Den Benutzer Und Installateur

After deciding the exact location of the boiler, fix the template to the wall.
Connect the system to the gas and water inlets present on the lower bar of the template.
If you are either installing the boiler on an existing system or replacing one, fit a settling tank under the boiler on the system
return line in order to collect any deposits and scale circulating in the system after flushing.
After fixing the boiler to the template, connect the flue and air ducts, supplied as accessories, as described in the following
sections.
Connect the siphon to a drain trap, making sure the slope is continuous. Avoid horizontal stretches.
WARNING:
Take special care when filling the heating system. In particular, open any thermostat valves in the system,
ensure the water enters slowly in order to prevent the formation of air inside the primary circuit until operating pressure is
reached. Lastly, vent any radiators in the system. BAXI declines all liability for damage deriving from the presence of air
bubbles in the primary exchanger due to the incorrect or imprecise observance of the above.
HT 1.280 - HT 1.240 - HT 1.120
MR: G 3/4 heating delivery
US: G3/4 domestic hot water boiler delivery
GAS: G 3/4 gas inlet to boiler
ES: G 1/2 cold domestic water inlet
RR: G 3/4 heating return
SC: condensate drain
INSTRUCTIONS FOR FITTERS

13. INSTALLING THE BOILER

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HT 240 - HT 330 - HT 280
MR: G 3/4 heating delivery
US: G1/2 domestic hot water outlet
GAS: G 3/4 gas inlet to boiler
ES: G 1/2 cold domestic water inlet
RR: G 3/4 heating return
SC: condensate drain
Figure 5
926.420.3 - EN