Rinnai new Zealand Limited
Hotflo Electric Storage Water Heater
Operation and Installation: 11151-C 03-10
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Commissioning
Commissioning and draining activities must be carried out by an authorised person.
To fill and turn on the water heater
1. Open all hot water taps in the house including the shower.
2. Open the cold water isolation valve to the 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. Switch on the electric power supply.
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. Switch off the electricity supply at the isolating switch to the water heater.
2. Close the cold water isolation valve at the inlet to the water heater.
To drain the water heater
1. Turn off the water heater as above.
2. Close all the hot water taps.
3. Gently operate the TPR Valve release, this will relieve the pressure in the water heater.
4. Open the drain valve having ensured no damage will occur from discharged water.
5. Operate the TPR Valve again. This allows air into the water heater and will result in water
draining.
Exporter Warning Statement
•
The water heater is not intended to be operated or adjusted by young children or infirm persons. young children
must be supervised to ensure they do not interfere with the water heater.
•
Temperature Pressure Relief Valve is to be operated regularly to remove lime deposits and ensure the valve is not
blocked.
•
The water heater must be installed in accordance with local electricity regulations such that the water heater is
isolated and will disconnect in high voltage situations.
•
a pressure relief device should be installed in a frost free environment, in the right position and with a discharge
line in a continuous downwards direction.
