Solahart 151J, Руководство пользователя

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15
SAVE A SERVICE CALL
TROUBLESHOOTING
Should your Solahart not provide hot water please check the following before requesting a service call:
1. Shading from trees is not excessive and is not covering the collectors for all or part of the day.
2. Hot water usage is not excessive.
3. Hot water is not leaking from within the plumbing system.
4. Booster switch and/or time switch is turned ON.
5. Booster circuit fuse or circuit breaker is sound.
6. Electric meter speeds up when the booster switch is turned ON after being OFF.
Contact your local Solahart Dealer if all of the above have been checked and there is still no hot water.
TEMPERATURE PRESSURE RELIEF VALVE OR EXPANSION CONTROL VALVE RUNNING
•
Normal Operation
It is normal and desirable the temperature pressure relief valve or
expansion control valve allows a small quantity of water to escape
during the heating cycle. This quantity should be equal to
approximately 1/50 of the hot water used, as water expands by this
volume when heated. However, if it discharges more than a bucket
full of water in 24 hours, there may be another problem.
The expansion control valve will discharge water instead of the
temperature pressure relief valve as it has a lower pressure rating. A
benefit is that energy is conserved as the discharged water is cooler.
This valve is installed in the cold water line to the water heater (refer
to the
cold water connection diagram on page 25).
•
Continuous dribble
If readily and safely accessible, try gently raising the easing lever on the relief valve for a few seconds (refer to
“Relief Valves”
on page 7). This may dislodge a small particle of foreign matter and clear the fault. The lever should
be released gently.
If the relief valve lever is not readily and safely accessible, contact your nearest Solahart Dealer. Do not attempt to
climb onto a non-trafficable roof to operate the relief valve lever.
•
Steady flows for long period (often at night)
This may indicate the mains water pressure sometimes rises above the designed pressure of the water heater. Ask your
installing plumber to fit a pressure limiting valve.
Warning: Never replace the relief valve with one of a higher pressure rating.
•
Heavy flows of hot water from the temperature pressure relief valve until water heater is cold -
then stops until water reheats
If this occurs when the water heater is being boosted by the electric booster heating unit, then the water heater must
be switched off at the isolating switch or switchboard. Phone your nearest Solahart Dealer to arrange for an
inspection.
This may also occur on a water heater without an over temperature protection (OTP) system during periods of
increased solar gain in the hotter months and particularly if there is a reduced level of hot water consumption. It is
most likely to happen during the daytime.
The temperature pressure relief valve will discharge water if the water temperature increases to a very high level
under these conditions. This higher temperature water is replaced with incoming cold water to reduce the energy level
inside of the tank. The valve will close when cooler water surrounds the temperature probe of the valve. As this is a
function of the temperature pressure relief valve under these conditions, it is not necessary to make a service call,
however you may consider having an over temperature protection (OTP) system installed.
COLLECTOR GLASS BREAKAGE
The Solahart warranty DOES NOT cover breakage of solar collector glass. It is recommended that the household
insurance policy cover the collector glass and/or damage to the water heater, especially in cyclonic areas and in locations
where severe hail is likely to occur. The collector glass is not offered as a replacement part. Should the solar collector
require replacement, contact your local Solahart Dealer.
Warning: No attempt should be made to remove or replace broken collector glass.
Solahart solar collectors have passed the AS/NZS 2712 requirements for resistance to hailstone damage, so it is not
normally necessary to fit a guard to a collector. Stone Guards are available to provide a level of protection to the collectors
against vandalism or accidental damage. Refer to your Solahart Dealer for details.