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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 all local
codes and regulatory authority requirements.
WATER HEATER
The water heater must be directly connected to a 240 V AC, 50 Hz mains
power supply with an isolating switch installed at the switchboard.
The power supply to a
single element model
can be either an
Off-Peak
(overnight)
,
Extended Off-Peak (overnight and day)
or
continuous
electricity
supply, depending upon the size of the water heater. Check with the local
electricity supply authority as to their requirements. An Off-Peak (overnight)
power supply will provide the maximum financial savings. Discuss the power
supply requirements with the householder.
A flexible 20 mm 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. Connect
the power supply wires directly to the terminal block and earth tab connection,
ensuring there are no excess wire loops inside the front cover. The temperature
rating of the power supply wires insulation must suit this application.
Note:
Remove the yellow warning label from the conduit entry before
connecting the conduit and wiring.
THERMOSTAT SETTING
The thermostat at the bottom of the water heater is tradesperson adjustable
from 60°C to 75°C. The factory setting of the thermostat is 65°C for a single
element model. The thermostat is adjusted by turning the adjuster
anticlockwise to decrease the temperature setting and clockwise to increase
the temperature setting. Only adjust the thermostat setting when the isolating
switch is switched off at the switchboard.
For reasons of safety and economy, we advise the thermostat be set at the
lowest temperature that will provide sufficient hot water. Dishwasher running
costs can be adversely affected if the thermostat is set below 65°C. Discuss the
thermostat setting requirements with the householder.
