Gas Boosters; Hydrogen Gas; Water Temperature; Turning Off The Water Heating System - Rinnai Prestige Operation & Installation Manual

Expansion Control Valve (ECV) - if fitted
It is normal and desirable that this valve allows a small quantity of water to be discharged during the heating cycle.
If it discharges more than a bucket of water during a 24 hour period or discharges continuously there may be
another problem.
If the valve leaks continuously, try easing the valve gear for a few seconds. This may dislodge any foreign matter
and alleviate the problem. If this does not alleviate the problem contact Rinnai.
Operate the easing gear regularly to remove any lime deposits and to verify that it is not blocked..

GAS BOOSTERS

Do not touch the flue outlet or do not insert any objects into the flue outlet.
•
Keep flammable materials, spray cans, fuel containers, trees, shrubs and pool chemicals etc, well clear of
the flue outlet.
•
Do not use the gas types other than those designated on the data plate. For example, do not use Propane/
Butane gas mixtures on appliances marked Propane Gas.
•
Do not use Propane Gas on appliances marked as Natural Gas and vice versa.

HYDROGEN GAS

In the case of systems using a vitreous enamel lined cylinder, if the hot water unit is not used for two weeks or
more, a quantity of hydrogen gas, which is highly flammable, may accumulate in the water heater. To dissipate this
safely, it is recommended that a non electrically operated hot tap be turned on for two minutes at a sink, basin, or
bath, but not a dishwasher or other appliance. During this procedure there must be no smoking, open flame or any
electrical appliance operating nearby. If hydrogen is discharged through the tap, it will probably make a sound like
air escaping.

WATER TEMPERATURE

The solar control unit and pump ensure water circulates between the solar collectors and storage cylinder until the
water at the base of the cylinder reaches approximately 65°C. Under these conditions water at the hot outlet may
exceed 85°C. During periods of low solar gain supplementary heating occurs to a minimum of 60°C for electric
boosted systems and 70°C for gas boosted systems.
To meet Australian regulatory requirements, supplementary heating must be operational.
IMPORTANT

TURNING OFF THE WATER HEATING SYSTEM

If you plan to be away for only a few nights, we suggest you leave the water heating system switched on. If it is
necessary to switch off the water heater, do so as outlined below:
Electric Boosted Systems
•
Switch off the electrical supply to the supplementary heating element. The switch is usually marked and
located in the electricity meter box of the dwelling.
•
Switch off the electric supply to the solar controller and pump.
Gas Boosted systems
•
Switch off the electric supply to the gas booster.
•
Switch off the electric supply to the solar controller and pump.
Rinnai
WARNINGS AND IMPORTANT INFORMATION
9 Split Solar OIM