Specifications
46
COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The power supply to the water heater must not be switched on until the solar storage tank is filled
with water.
To fill the solar storage tank with water and turn on the water heater:
Open all of the hot water taps in the house (don‟t forget the shower).
Open the cold water isolation valve fully on the cold water line to the water heater.
Air will be forced out of the taps.
Close each tap as water flows freely from it.
Check the pipe work for leaks.
Open the gas isolation valve fully.
Check the gas pipe work for leaks.
Plug in the solar storage tank and in-series gas booster at the power outlets.
Commission the solar circuit (refer to “Solar Circuit” on page 47).
Switch on the electrical supply at the power outlets to each of the solar storage tank and in-series gas
booster.
The power outlet must be switched on for the solar controls to operate and solar gain to be achieved
and for the in-series gas booster to operate and have its frost protection activated.
Open a hot tap.
The in-series gas booster will operate automatically.
Check to ensure the flow from each connected hot tap is sufficient to operate a continuous flow in-series
gas booster.
The minimum operating flow rate for all models is 2.7 litres per minute.
Check the gas inlet and burner gas pressure of the in-series gas booster (refer to “Gas Inlet Pressure”
on page 58 and “Burner Gas Pressure” on page 58).
Check and if required adjust the preset outlet temperature or thermostat setting of the in-series booster.
Refer to “Preset Outlet Temperature Setting” on page 58.
Explain to the householder or a responsible officer the functions and operation of the solar water heater.
Warning: Upon completion of the installation and commissioning of the water heater, leave this guide
with the householder or a responsible officer. DO NOT leave this guide inside of the cover of the water
heater, as it may interfere with the safe operation of the water heater or ignite when the water heater is
turned on.
If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises is vacant, follow the procedure “To Turn Off the Water Heater” on page 59.