Rinnai 21
HOTFLO (HFE Series) Electric Storage Water Heater OIM
WARNING
Commissioning activities
MUST BE
carriedoutbyanauthorisedperson.
DO NOT
switchontheelectricpowersupplyuntilthewaterheaterisfilledcompletelywithwater.
TO FILL & TURN ‘ON’ THE WATER HEATER
1� Open all hot water taps in the building, including the shower�
2� Open the cold water isolation valve to water heater� Air will now be forced out of the taps�
3� Close each tap when water runs freely without air bubbles�
4� Check all plumbing connections and pipe work for water leaks�
5� Connect the water heater to the electricity supply, and turn the electric power supply 'ON'�
TO TURN ‘OFF’ THE WATER HEATER
It may be necessary to turn off a water heater after installation and commissioning, for example during building
activities or if the premises are vacant�
1� Isolate or turn 'OFF' the water heater at the electricity supply�
2� Close the cold water isolation valve at the inlet to the water heater�
COMMISSIONING
