Buderus Logano plus GB312 Installation Manual page 35

Caution: Health risk from contaminated do-
mestic water.
V It is imperative that you observe all regula-
tions and standards applicable in your
country regarding prevention of domestic
water contamination.
V Connect the hose to the water tap. Push hose onto the
hose connection of the boiler fill & drain valve, fasten
with a hose clip and fill with water.
V Turn on the boiler fill & drain valve.
Slowly fill the heating system. Observe the pressure
gauge (pressure/temperature gauge) while doing so.
V Turn off the water tap and the boiler fill & drain valve
once the required testing pressure has been reached.
V Check the connections and pipework for watertight-
ness.
V Bleed the boiler by carefully opening the safety valve or
an automatic vent (supplied separately) on the B-kit
when the boiler circulation pump is running.
V Bleed the system via the radiator bleed valves.
V Top up with water if the pressure drops as a result of
bleeding the system.
V Remove the hose from the boiler fill and drain valve.
Logano plus GB312 - Technical specifications are subject to change without prior notice
Installing the boiler
1
Fig. 29 Boiler fill & drain valve on return pipe
1 Boiler fill & drain valve
6
7 747 010 720-25.1RS
35