Installation - Plumbing - Baxi PREMIER PLUS 800L Installation And User Instructions Manual

Diagram 2 - Dimensions
3. INSTALLATION – PLUMBING
3.1 Refer to section IMPORTANT INSTALLATION POINTS. Plumb in valves in the
sequence shown in Diagram 3, page 6. Ensure the valves are installed in the correct
orientation by reference to the direction of flow arrows marked on them.
3.2 The water connections on the water heater accept direct connection of 1" (to fit
28mm pipe). The thread on the connections is G1" to enable the use of G1" male
connections to be used if required.
3.3 The sanitary water INLET is marked BLUE, the OUTLET is marked RED. Several
hot outlets can be served, however, individual site demands should be considered
when choosing capacity and the number of outlets to be served.
3.4 It is recommended that an isolating valve is fitted on the cold water supply to the
heater.
3.5 A drain valve must be fitted below the heater in the inlet pipe work. It must be sited
between the heater and the check valve or inlet valve set, if fitted, (see Diagram 3, below)
3.6 A sanitary circuit expansion vessel may be fitted to the cold water supply as shown
in Diagram 3, below to prevent wastage of expanded water. A range of expansion
vessels are available for this range of cylinders, see page 12 for details.
3.7 A re-circulation circuit can be installed on the sanitary water circuit. A connection
is provided for the re-circulation circuit return pipe (threaded G1" female). This
connection is supplied with a blanking plug fitted which should be removed before
connecting the re-circulation circuit return pipe (see diagram 4, page 6).
3.8 The primary heating circuit MUST be fully pumped.
3.9 The connection sizes to the primary flow and primary return are shown in table 1,
page 4.
35°
40°
5
30°
45°