Pumped Heating & Gravity Hot Water; Gas Connection - Baxi Bermuda Inset 2 Boiler 50/4 Installation And Servicing Manual

5.0 Installation - Page 15
5.9 Pumped Heating & Gravity Hot Water (Fig. 18)
1. A 1in x 22mm threaded adaptor, two compression nuts
and olives and a brass injector tee piece are provided in the
kit for the return connection.
NOTE: The injector tee must be fitted to the return of all
systems with gravity domestic hot water.
2. The 1in x 22mm threaded adaptor provided must be fitted
to the lower tapping marked RETURN.
3. Fit the injector tee into the adaptor. The injector tee may
be oriented as shown to facilitate connection to the gravity
return pipework.
4. Connect the pumped return to the 22mm compression
fitting of the injector tee..
5. Take the gravity hot water return pipe to a level beneath
that of the injector tee and connect upwards to the 28mm
branch of the injector tee, oriented as shown.
6. Connect the pumped flow to one of the connections
marked FLOW. Connect the gravity flow to the remaining
connection.
7. The gravity flow pipes must rise vertically as close as
possible to the appliance. Ensure the pipework is routed
such that it does not introduce an airlock in the boiler.
8. Follow the instructions under system details as regards
the vent pipe and cold feed.
5.10 Gas Connection (Fig. 19)
1. Connection to the gas supply is Rc ½ (½ in BSPT)
internal located at the rear of the gas cock. The gas supply
pipe must be routed from the right hand side.
2. The positioning of the gas supply pipe must not restrict
the servicing of the appliance or installation of the fire.
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