Owner’s Manual – Prodigy 4 & 5
6
H3109 3109 Rev. L
Plumbing Connections
Temperature Protection:
Water heaters can produce very hot
water. To reduce the risk of scald injury,
it is mandatory under the requirements
of AS/NZS 3500.4 that an approved
temperature control device be fitted to the
hot water supply to outlets used primarily
for personal hygiene. This valve should be
checked at regular intervals to ensure its
operation and settings remain correct.
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 the
RP¾”(DN20) socket marked “INLET” at
the bottom of the water heater on the left
hand side.
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 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