Rheem Multipak MPE02, Руководство пользователя и инструкции по установке

Страница: 52 / 60

COMMISSIONING
52
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:
•
Switch off the electrical supply at the isolating switch to each CFWH (refer to note below).
•
Close the gas isolation valve at the inlet to the Multipak.
•
Close the cold water, hot water flow and building return isolation valves at the inlet to the Multipak.
•
Drain each CFWH if there is a risk of freezing conditions occurring (refer to “Draining The Water Heater”
on page 52 ).
Notes:
•
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 the
Rheem warranty (refer to “Terms of the Rheem Warranty” on page 4 ).
•
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 52 ).
DRAINING THE WATER HEATER
To drain the water heater:
•
Turn off the water heater (refer to “Turn Off The Water Heater” on page 52 ).
•
Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of
each continuous flow water heater.
Water will drain from the water heaters.
•
When water stops flowing from the water heaters, close the pressure relief valve.
Note: It is recommended not to screw the drain plugs back in, until the water heater is to be turned on again.