Dux ProFlo 160T136 Manuale d'uso - Pagina 4
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Owner's Manual – Proflo Electric Storage Water Heaters
Plumbing Connections
Relief Valve:
The Pressure & Temperature Relief (PTR)
Valve is supplied inside the electrical cover
of the water heater. Instructions on how
to remove the electrical cover can be
found on page 6. Discard the clear plastic
packaging containing the PTR Valve and
brass plugs.
The PTR Valve rating depends on the size
of the water heater. See Specifications on
page 4 for details.
The PTR Valve rating is also shown on the
compliance plate. The PTR Valve must
be installed directly into the RP½"(DN15)
socket marked "RELIEF VALVE" at the top
of the water heater. Ensure that a sealing
material is applied to the PTR Valve to
prevent water leaks.
The drain line from the PTR Valve must be
made of copper and run in accordance
with the requirements of AS/NZS 3500.4.
It must be installed in a continuously
downward direction in a frost free
environment.
The PTR Valve and its drain line must not
be sealed or blocked. Generally a separate
drain line must be run for the valve although
it may be joined with the drain line from
the expansion control valve under certain
circumstances.
Care must be taken when attaching
pipe saddles to the water heater. Self-
drilling screws no longer than 12 mm are
recommended.
It is normal for the valve to leak a small
amount of water during heating cycles.
2
The PTR Valve is not intended to enable
connection of the water heater to
supplementary energy sources such as
solar panels or slow combustion stoves.
Refer to AS/NZS 3500.4 for guidance on
these types of installations.
Hot Water Connection:
The hot water pipe is to be connected to
either of the RP¾"(DN20) sockets marked
"OUTLET" at the top of the water heater.
The unused socket marked "OUTLET" is
to be plugged with one of the brass plugs
supplied inside the electrical cover of the
water heater. Ensure that a sealing material
is applied to the brass plug to prevent
water leaks.
It is recommended that all hot water pipes
are insulated. Hot water pipes installed
outdoors should be insulated with UV
stabilised insulation.
Plastic pipes or fittings shall not be used
within 1 metre of the outlet although they
may be used downstream of a temperature
control valve. Refer to AS/NZS 3500.4 for
further details.
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 is fitted to the
hot water supply to outlets used primarily
for personal hygiene. This device should be
checked at regular intervals to ensure its
operation and settings remain correct.
H0421
0421
Rev. N