Rheem Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre - Manual (Page 28)

28
CONNECTIONS – ELECTRICAL
The power supply to the water heater must not be switched on until the
water heater is filled with water
and a satisfactory megger reading is
obtained.
All electrical work and permanent wiring must be carried out by a qualified
person and in accordance with the Wiring Rules AS/NZS 3000 and local
authority requirements.
The water heater, supplied with a 1.8 metre power cord, requires a 240 V
general power outlet (GPO) to be located within 1.2 metres of the installation.
The GPO is required to be weatherproof for an outdoor installation.
Should it be necessary to provide permanent wiring, the water heater must be
directly connected to a 240V AC 50 Hz mains power supply with a double pole
isolating switch installed adjacent to and accessible from the water heater. A
20 mm flexible conduit is required for the electrical cable to the water heater.
The conduit is to be connected to the unit with a 20 mm terminator. Ensure
there are no excess wire loops inside the front cover.
The water heater can be wired
for use with a remote control
thermostat or a remote time
switch. The water heater
thermostat should be adjusted to
a temperature higher than the
setting on a remote thermostat.
THERMOSTAT SETTING
The thermostat is adjustable
from 60
°C to 82°C. For reasons
of safety and economy, we
advise the thermostat is set at
the lowest temperature that will
provide sufficient hot water.
Discuss the thermostat setting
requirements with a responsible
officer. Refer to
“Temperature
Control” on page 43.
If this water heater is installed as an in-series booster water heater as part of a
commercial solar water heating system, to maximise solar contribution it is
recommended the thermostat is set at 60
°C, unless sanitising temperatures are
required.
Method of Wiring for
Remote Control or Time Switch