Rheem 871026 Betriebsanleitung PDF herunterladen (Seite 71)

COMMISSIONING

TO TURN OFF THE WATER HEATER

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, then:

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 (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.

Drain the water heater if there is a risk of freezing conditions occurring (refer to “Draining The Water

Heater” on page 72).

Note: The frost protection system will be rendered inoperable if electrical power is not available at the water

heater. Damage caused by freezing due to the unavailability of power at the water heater is not covered by

warranty (refer to “Warranty Exclusions” on page 75). If the power has been switched off to the water heater

and there is a risk of freezing, then it is necessary to drain the water heater (refer to “Draining the Water

Heater” on page 72).

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