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THM0421 026512 Rev. C Apr 13
Thermann Owner’s Manual
250L to 400L Electric Storage Water Heaters
Plumbing Connections
Hot Water Connection
The hot water pipe should be
connected to the RP¾/20 socket
marked OUTLET at the top of the unit.
For the most economical operation of
the water heater, it is recommended
that all hot water lines are insulated.
Please check local regulations
regarding the use of hot water supply
pipework that are not made of copper.
Insulation of Pipes
All hot water pipes must be insulated
with UV stabilized insulation suitable
for solar working temperatures, e.g.
Armaflex Insulation.
Note:
a combined isolating valve/non-return valve/line strainer may be used.
Expansion valve only required where local regulations demand.
Union
Connection
Non-return
Valve
Line
Strainer
Cold Water
Inlet
Drain
Expansion
Valve
Isolating Valve
(Spindle Vertical)
Inlet Connections
Temperature Protection
Water heaters can produce very hot
water. To reduce the risk of scald
injury, it is mandatory under the
requirements of Australian Standard
AS/NZS3500.4 that a suitably
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.
