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NOISE FROM THE SOLAR COLLECTORS
During periods of higher solar radiation or lower hot water usage and the solar storage tank is full of hot water,
the water heater may undergo Over-temperature operation (refer to
If this mode of operation has occurred and the circulator has deactivated, the water in the solar collectors will
continue to gain heat and increase in pressure when solar radiation is still available. This increase in heat and
pressure is greater when higher performing selective surface solar collectors are installed compared to non-
selective surface collectors.
When a hot tap is opened, this pressure is released and the high temperature water may turn to steam creating
a sudden and loud rumbling noise and even a rattling or banging noise of the solar collectors against the roof
cladding material. This results from the higher level of solar radiation and the water in the solar storage tank
being at its maximum temperature and is not caused by a fault with the solar water heater.
COLLECTOR GLASS
The Solahart warranty
DOES NOT
cover breakage of solar collector glass. Check your household insurance
policy covers collector glass breakage.
Warning:
No attempt should be made to remove or replace broken collector glass.
The collector glass is not offered as a replacement part. Should the solar collector require replacement, contact
your nearest Solahart Dealer.
HIGHER THAN EXPECTED ELECTRICITY BILLS
With the installation of your new solar hot water system, maximum electrical energy savings can be achieved
with careful planning of hot water usage. Should you at any time, feel your electricity bill is higher than
expected, we suggest you check the following points:
•
Is the relief valve running excessively?
Refer to
“Temperature Pressure Relief Valve or Expansion Control
on page 24.
•
Is one outlet (especially the shower) using more hot water than you
think?
Refer to
on page 23.
•
Is there a leaking hot water pipe, dripping hot water tap, etc?
Even a small leak will waste a surprising quantity of hot water and
energy. Replace faulty tap washers, and have a plumber rectify any
leaking pipe work.
•
Are you using the booster heating unit properly?
Refer to
on page 14.
•
Has there been an increase in hot water usage?
An increase in hot water usage may result in an increase in booster operation.
•
Has your water heating tariff rate been increased by your electricity retailer since your previous bill?
ELECTRICITY SUPPLY AND TARIFF
The hours of availability for the electrical supply and the tariff to which your solar water heater is connected
will play an important role in the overall effectiveness of the system. It is important you are aware of the hours
of electricity supply to enable you to take full advantage of the boosting period, i.e. Domestic / Continuous or
Time of Use, Extended Off-Peak (overnight and day) or extended time controlled, or Off-Peak (overnight) or
time controlled. The electricity tariff will impact on the operating costs of the system. Time controlled tariffs are
generally cheaper than a continuous supply tariff and result in lower running costs.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE, PHONE
YOUR NEAREST SOLAHART DEALER.
