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THERMOSTAT SETTING
The thermostat is adjustable from 60°C to 70°C. The thermostat is adjusted by turning the adjuster
anticlockwise to decrease the temperature setting and clockwise to increase the temperature setting. Only
adjust the temperature 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 during periods when boosting is required. It is recommended the thermostat is
set at 60°C to maximise solar contribution. Discuss the thermostat setting requirements with the
householder.
SOLAR CONTROL UNIT
The solar control unit, supplied with a 1.8 metre power cord, requires a switched 240 V AC 50 Hz general
purpose outlet (GPO) to be located within 1.2 metres of the installation. The GPO must have a continuous
power supply originating from a circuit other than the water heater circuit. The GPO is required to be
weatherproof if installed outdoors.
The GPO to the solar control unit must be switched on for the solar control system to operate and solar gain
to be achieved.
The solar control unit automatically controls the flow rate through the collector circuit. This is achieved via the
hot and cold sensors and differential controller programming providing control over the operation of the
circulator. There is no provision for nor is adjustment to the solar control unit required.
WIRING DIAGRAM
– SOLAR STORAGE TANK
Hot sensor
connection
Cold sensor
PUMP
Differential Controller
Frost Heating Unit
A1
N
3
1
4
2
Main 240 AC
Booster Heating Unit
A1
N
3
1
4
2
Booster Heating Unit – Single Element Model
