Owner’s Manual – Prodigy 5
6
H3109 3109 Rev. J
Plumbing Connections
Cold Water Connection:
The water heater is intended to be
permanently connected to the water
supply main.
An approved isolating valve, non-
return valve, line strainer (optional but
recommended) and union must be
fitted between the water supply main
and either of the RP¾”(DN20) sockets
marked “INLET” at the bottom of the
water heater.
The other inlet socket is to be plugged
with one of the brass plugs supplied
loose with the water heater. Ensure a
sealing material is applied to the brass
plug to prevent water leaks.
All fittings must be approved by the
relevant Authority. Plastic pipes or
fittings shall not be used between the
isolating valve and the inlet.
See the diagram below for details.
Water Supply Pressure:
This water heater is designed for direct
connection to water supply pressures of
up to
1120 kPa
.
Where the mains pressure can exceed
or fluctuate beyond the pressure shown
above, a pressure reducing valve must
be fitted in the cold water inlet supply.
Note for New Zealand, South
Australia and Western Australia:
It is a requirement in these locations that
an expansion control valve be fitted on
the cold water supply line between the
non-return valve and the water heater.
Note: a combined isolating valve/non-return valve/line strainer may be used.
The expansion control valve is only required where local regulations demand, although it is
recommended in areas where the water saturation index is greater than 0.40.
Union
Connection
Non-return
Valve
Line
Strainer
Cold Water
Inlet
Drain
Expansion
Control Valve
Isolating Valve
(Spindle Vertical)
Cold Water Connections
