Installation and Owner’s Manual – Airoheat Heat Pump
7
H4120 025941 Rev. D
Cold Water Connection:
The water heater is intended to be
permanently connected to the water
supply main, and not connected by a
hose-set.
The cold water supply can be
connected to either of the RP¾”(DN20)
sockets marked “INLET” at the bottom
of the water heater. Before connecting
the pipework, it is essential that a
dielectric fitting
is installed in the
socket. Refer to Dielectric Fittings on
page 5.
An approved isolating valve, non-return
valve, and line strainer (optional but
recommended) must be fitted between
the water supply main and the dielectric
fitting. Refer to the diagram on page 6
for details.
All fittings must be approved by the
relevant Authority. Plastic pipes or
fittings shall not be used between the
isolating valve and the inlet.
The unused socket marked “INLET”
is to be plugged with one of the brass
plugs supplied inside the electrical cover
of the water heater. Instructions on how
to remove the electrical cover can be
found on page 11. Ensure that a sealing
material is applied to the brass plug to
prevent water leaks.
Water Supply Pressure:
This water heater is designed for direct
connection to water supply pressures of
up to
800 kPa
.
Where the mains pressure can exceed
or fluctuate beyond this pressure, 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.
Plumbing Connections
