BOILER CONNECTIONS
6 720 645 222a (2012/05)
9
1. Push the lever on the pressure relief connector UP
until the stop on the inside of the handle is over the
shoulder of the metal bracket to secure in place.
Fig. 7 PRV in the up position
B Remove the screw from the control panel retaining
bracket and lower the control panel into the service
position.
B Make connections to the heating system and cylinder.
Connect the gas supply to the boiler gas cock 22mm
compression.
To connect the expansion vessel flexible pipe to the
hydraulic manifold situated to the left of the pump:
B Remove and discard the plastic cap from the
expansion vessel flexible pipe.
1. Refer to figure 8, release the retaining clip.
2. Remove and discard the orange plastic blanking plug
(2) from the pressure vessel connection at the
hydraulic manifold.
Fig. 8 Blanking plug removal
1. Refer to figure 9 and insert the expansion vessel
flexible pipe it to the fitting on the pump.
2. Secure in place with the wire retaining clip.
Fig. 9 Expansion vessel connection
B Connect the pressure relief drain pipe to 15mm
compression joint using the compression nut and
olive supplied in the literature/hardware pack.
6720644743-17.1Wo
1.
6720645222-05.1Wo
1.
2.
6720645222-06.1Wo
1.
2.
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