Connecting The Expansion Vessel - Baxi POWER HT+ Series Installation And Service Manual

6 Installation
Fig.42 Mounting the fill and drain valves
3
Fig.43 Connecting the "heating circuit re­
turn" pipe
4
5
Fig.44 Mounting the circulation pump
6
40
3. Mount the fill and drain valves to the boiler's inlet and outlet (valves
not provided).
N N ote
To facilitate maintenance work, we recommend mounting an isola­
tion valve on the heating flow and return pipes.
Caution
Position the safety valves between the boiler and the isolation
valves.
4. Remove the anti-dust plug on the "heating return" inlet.
5. Connect the "heating circuit return" pipe to the boiler's "heating re­
turn" inlet.
6. Mount the circulation pump on the "heating return" pipe (circulation
pump not provided).

6.3.2 Connecting the expansion vessel

1. Determine the volume of the expansion vessel according to the vol­
ume of heating circuit.
See
Volume of the expansion vessel, page 41.
2. Connect the expansion vessel to the heating circuit return pipe.
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