4
Thermann Owner’s Guide
Electric and Gas Storage Water Heaters
SAFETY INFORMATION
Temperature Protection:
Water heaters can produce very
hot water. To reduce the risk of
scald injury, it is mandatory 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.
Not Using Hot Water?
If your water heater is not used for two
weeks or more, a quantity of hydrogen
(which is highly flammable) may
accumulate inside your water heater
tank.
To dissipate this gas safely it is
recommended that a hot tap be
turned on for several minutes at a sink,
basin or bath, but not a dishwasher,
clothes washer or other appliance.
During this procedure there must be
no smoking, open flame or any other
electrical appliance operating nearby.
If hydrogen is discharged through
the tap it will probably make a sound
similar to air escaping.
Electric Storage Water Heaters:
Electric storage water heaters are
designed for single phase 240V a.c.
supply only. The electrical connection
must comply with Local Supply
Authority Regulations and
AS/NZS 3000.
Any electrical covers should
be removed only by a licensed
tradesperson, and only after the
electrical supply to the water heater
has been isolated.
In addition to the PTR Valve, electric
storage water heaters are fitted with
a combination thermostat and over-
temperature energy cut-out.
This device must not be tampered
with or removed. Replacement of
this device must only be carried out
by a licensed tradesperson or the
manufacturer.
Your water heater must not be
operated unless this device is fitted
and in working order.
Danger:
The operation of the over-temperature
energy cut-out indicates a possibly
dangerous situation. Do NOT reset the
over-temperature energy cut-out until
the water heater has been serviced by
a licensed tradesperson.
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