Installation manual

1 Customer Information
Envirosun AS Installation Manual Rev1a PVNW.docx Page 5
If the unit is to be fitted in areas prone to frost and freezing the unit must be installed in
accordance with any relevant sustainability programme (such as the Sustainability
Victoria program).
A breach of this requirement may void the warranty in the event of damage caused
by leaking due to frost or freezing.
1.6 Important safety information
All water heaters have the ability to produce hot water very quickly. To reduce the risk of
scald injury it is recommended that a temperature control valve be fitted to the hot water
supply pipe work. This valve should be checked every 6 months to ensure its operation
and settings remain correct.
Check that the pressure & temperature relief valve drain pipe is not located where it can
cause damage if hot water is discharged.
This water heater is not intended for use by young children, infirm persons, or
persons lacking relevant skill or experience, without suitable supervision.
Children should be supervised to ensure they do not play with hot water taps or the
water heater.
1.7 If the customer is away for a long period of time
If the system is not to be used for a period of a week or more during the summer months
it is advisable to turn off the electricity supply to the booster and if practical, cover the
solar collectors. If the solar collectors are not covered there is a possibility that the high
temperature valve in the storage tank may open and disperse small amounts of hot water
for a short period to reduce the storage tank temperature while you are away. This is a
normal function and does not harm the system.
1.8 Water discharge through the pressure valve
All Conergy solar water heaters have two pressure valves located within the system
configuration. The cold water expansion control valve (ECV), located in the cold water
supply pipe, may release a small amount of water from time to time during the heating
cycle of the system. The water discharge is water expanding due to the heating process.
Normally the discharge will be less than 10 litres per day. The pressure & temperature
valve, located on the storage tank, may also release a small expansion discharge.
1.9 Hydrogen gas can accumulate!
If the hot water system is not used for two weeks or more, a quantity of highly flammable
hydrogen gas may accumulate in the water heater. To dissipate this gas safely, it is
recommended that a hot tap be turned on for several minutes at a sink, basin or bath. Do
not use a dishwasher, clothes washer or other appliance. During this procedure there
must be no smoking, open flame or any other electrical appliance operating nearby. If
hydrogen is discharged through the tap, it will probably make an unusual noise as with air
escaping. Do not place hands or any part of your body beneath the tap during this
procedure.