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35
COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The power supply to the solar storage tank and solar control unit must not be switched on until
the water heater is filled with water.
• 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.
• Open the isolation valve in the pipe work between the outlet of the heat exchanger and the solar
pump, located behind the lower front cover of the solar storage tank.
• Plug in the water heater at the power outlet.
• Commission the solar circuit (refer to “Solar Circuit” on page 36).
• Switch on the electrical supply at the power outlet to the water heater.
The power outlet must be switched on for the solar controls to operate and solar gain to be
achieved and for the gas booster to operate and have its frost protection activated.
• Check the gas inlet and burner gas pressure of the gas booster (refer to “Gas Inlet Pressure” on
page 48 and “Burner Gas Pressure” on page 48).
• Open a hot tap.
The gas booster will operate automatically.
• Check to ensure the flow from each connected hot tap is sufficient to operate the gas booster.
The minimum operating flow rate for all models is 3.0 litres per minute.
Explain to the householder 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 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.