Owner’s Manual – Electric Boosted Solar
5
Part No: H3100
Version: 10346D
Plumbing Connections
Pressure & Temperature Relief
Valve
The Pressure & Temperature Relief Valve
is supplied loose with the water heater.
The valve rating is:
250 Litre Model – 1000kPa
315 Litre Model – 1000kPa
400 Litre Model – 1000kPa
The relief valve must be installed directly
into the top socket marked “RELIEF
VALVE”. The drain line from this valve
must run in a continuously downward
direction in a frost-free ambient position
with the discharge end left open to
atmosphere permanently. The Pressure
& Temperature Relief Valve supplied
with the water heater is not intended to
enable connection of the water heater to
supplementary energy sources such as
solar panels or slow combustion stoves
(refer AS/NZS 3500.4 for guidance on
these types of installations)
Warning: Operation of the relief valve
easing gear at least once every six (6)
months is recommended.
Danger: Failure to operate the relief
valve easing gear at least once every six
(6) months may result in problems with
the water heater
Note: Plugs are supplied with the water
heater to plug off the ttings that are not
required. Ensure that a sealing material
is applied to the plugs to prevent
leaking.
Important: The Pressure & Temperature
Relief Valve and the drain outlet pipe
must not be sealed or blocked. It is
normal for the valve to overow during
heating cycles.
Cold Water Connection
An approved isolating valve, non
return valve, line strainer (optional but
recommended), and union must be
tted between the supply main and the
RP¾/20 socket in the water heater.
All ttings must be approved by the
relevant Authority.
Note for S.A. and W.A.: It is a state
requirement that a pressure relief valve
be tted on the cold water supply line
between the non return valve and the
water heater
Hot Water Connection
The hot water line should be connected
to the RP¾/20 socket marked as
OUTLET. For the most economical
operation of the water heater, it is
recommended that all hot water lines
are insulated with high temperature, UV
resistant 13mm closed cell insulation.
Please check local regulations regarding
the use of hot water supply pipework
other than pipes made of copper.
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