Specifications

ABOUT YOUR WATER HEATER
9
TO TURN OFF THE WATER HEATER
If you plan to be away from home for a few nights, we suggest you leave the water heater switched on.
If it is necessary to turn off the water heater:
Switch off the electrical supply at the power outlets to the solar storage tank and to the in-series gas
booster if there is no risk of freezing conditions occurring (refer to note below).
Close the gas isolation valve at the inlet to the water heater.
Close the cold water isolation valve at the inlet to the water heater.
Note: If there is a risk of freezing conditions, the electrical supply to the in-series gas booster should not be
switched off unless the gas booster is drained, otherwise damage could result (refer to “Freeze Protection”
on page 7 and “Draining the Gas Booster Water Heater” on page 9).
TO TURN ON THE WATER HEATER
Screw in the drain plugs at the cold water inlet and hot water outlet of the in-series gas booster if the gas
booster has been drained.
Open the cold water isolation valve fully at the inlet to the water heater.
Open all of the hot water taps in the house (don‟t forget the shower).
Air will be forced out of the taps.
Close each tap as water flows freely from it.
Open the gas isolation valve fully at the inlet to the water heater.
Plug in the solar storage tank and gas booster at the power outlets and switch on the electrical supplies.
The power outlets 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.
The in-series gas booster will operate automatically when you open a hot tap, if boosting is required.
DRAINING THE GAS BOOSTER WATER HEATER
Turn off the water heater (refer to “Turn Off The Water Heater” on page 9).
Open a hot tap (preferably the shower outlet).
Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of
the in-series gas booster.
Water will drain from the in-series gas booster.
When water stops flowing from the in-series gas booster, close the hot tap.
Note: It is recommended not to screw the drain plugs back in, until the water heater is to be turned on again.