8 maintaining your system
Kelvinator solar hot water systems
Maintaining your system
4. Turn off the mains water supply to the hot water system
using the isolation valve located on the inlet piping.
5. Release the pressure inside the tank by lifting up the lever
on the pressure and temperature relief valve. Caution
should be taken so the lever does not snap back as it
could damage the valve seat. Once the lever is activated
water will be discharged from the relief valve drainage
pipe, relieving the pressure inside the storage tank.
outlet
relief valve
activation
lever
drainage
pipe
6. When water has stopped discharging from the relief valve
drainage pipe, this indicates that the pressure inside the
tank has now been reduced to atmospheric pressure.
De-activate the lever on the relief valve, returning it to its
normal position.
7. Drain the storage tank by undoing the connection to the
tank inlet and placing your drainage solution in position
as needed. Activate the relief valve lever, releasing the
vacuum and allowing air to flow into the tank as the water
drains out. Whilst the storage tank is draining, continually
monitor the process and most importantly where the
water is draining to. If at any time the draining needs to
be halted, simply de-activate the relief valve lever.
8. Once the storage tank has been fully drained, flush the
system by inserting a garden hose into the inlet of the
storage tank. Allow water to enter the inlet and drain
several times to ensure that all sediment is removed.
9. De-activate the relief valve, returning it to its normal position.
10. Reconnect the inlet piping to the storage tank and then
turn on the isolation valve, located on the inlet piping to
allow mains water to refill the tank.
Cleaning the solar collectors
Over time dust and debris may build up on the collectors,
reducing their efficiency. It is recommended that you have
the collectors cleaned periodically by a suitably equipped
maintenance person. All relevant safety precautions must be
followed to ensure the safety of all persons and to prevent
damage to the collectors or personal property.
Replacing the glazing of collectors
The glass on the collector is designed to withstand impact
and to be hail resistant. If however the glass on the collector
is cracked or damaged in any way, please contact the service
department to source and install genuine replacement parts
(see contact details in warranty section).
warning
Do not attempt to repair or allow unauthorized persons to
repair the collector as a hazardous situation may arise.
Drainage or flushing of tank
To flush or drain the storage tank:
1. The power to the hot water system must be turned off at
the switchboard. Locate and turn off the circuit breaker
that supplies the hot water system or remove its fuse.
2. The water inside the tank will be extremely hot. Turn on
the nearest hot water tap and allow it to run until the
water coming out has reached a safe temperature for
draining.
3. Before draining the hot water system assess the best area
for the water to be directed (i.e. an outside drain) where
it will not damage to any property or cause an unsafe
situation to arise.
