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ABOUT YOUR WATER HEATER

TO TURN OFF THE WATER HEATER

If it is necessary to turn off the water heater:

Turn off the controllers(s) (if fitted) by pressing the on / off button.

The light in the on / off button will go out and the priority light (standard controller) or the ACTIVE light

(Deluxe controller), if it is on, will go out.

Switch off the electrical supply at the power outlet to the water heater 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 water heater should not be switched

off unless the water heater is drained, otherwise damage could result (refer to “Frost Protection” on page 8

and “Draining the Water Heater” on page 8).

TO TURN ON THE WATER HEATER

Screw in the drain plugs at the cold water inlet and hot water outlet of the water heater if the water

heater has been drained.

Open all of the hot taps in the house (don‟t forget the shower).

Open the cold water isolation valve fully at the inlet to the water heater.

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 power supply cord at the power outlet.

Switch on the electrical supply at the power outlet to the water heater.

Turn on a controller, if one is fitted, by pressing the on / off button.

The light in the on / off button and the priority light (standard controller) or ACTIVE light (Deluxe

controller) will both glow.

The water heater will operate automatically when you open a hot tap.

HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?

Installation requirements are shown on page 52. The water heater must be installed by an authorised

person. In Australia, the installation must comply with Standards AS/NZS 3500.4 and AS 5601 and all local

codes and regulatory authority requirements.

Warning: Temperature controllers must not be fitted to this water heater (871 series) as part of a solar

water heater system or if a Water Star water heater is installed because water at a temperature much higher

than the controller setting can be delivered. If a solar preheater or a Water Star water heater has been

installed to an existing water heater installation, then all controllers must be disconnected and removed.

The pipe work between the solar storage tank (if one is installed) and the gas booster water heater has a

minimum recommended pipe size of DN20, MUST BE of copper and be fully insulated in accordance with

the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. The

insulation must be fitted up to the connections on both the solar storage tank and the gas booster water

heater.

DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?

The water heater is suitable for most public water supplies, however some water chemistries may have

detrimental effects on the heat exchanger and fittings. If you are in a known harsh water area you must

read page 72. If you are not sure, have your water chemistry checked against the conditions described on

page 72.

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