www.stratco.com.au
AUSTRALIA
(Ph): 1300 155 155
NEW ZEALAND
CHRISTCHURCH
(Ph): (03) 338 9063
© Copyright November 11
21/11/11
All brands and logos/images accompanied by ® or ™ are
trade marks of Stratco (Australia) Pty Limited.
BROCISH
Flushing the Hot Water Storage Tank
For locations with high sediment levels in the water supply, the hot water
storage tank should be flushed at regular intervals. This is achieved by
repeatedly draining and refilling the tank as outlined in sections “Draining
the System” within “Maintenance” and “Filling the System” within the
“Commissioning” section, until the water being drained runs clear.
Stratco recommend that a drain cock is fitted at the cold water inlet to the
hot water storage tank to facilitate regular flushing where required.
Draining the Solar Collector
Draining and filling of the solar collectors is normally only conducted
during installation or servicing and must be undertaken by an authorised
Stratco installer.
If necessary, the solar collector can be drained for repairs to leaking pipes
inside the evacuated glass tubes or header.
To drain the solar collectors, turn off power at the mains to isolate the gas
booster (for gas boosted systems), temperature differential controller and
circulating pump.
Turn off the gas supply to the gas booster (for gas boosted systems),
or isolate power supply to the heating element at the mains (for electric
boosted systems).
Close the isolating valve on the cold water supply to the hot water storage
tank.
Disconnect the elbow compression fittings at the water inlet of the first
solar collector and water outlet of the last solar collector. The solar
collector/s will boil dry within an hour during sunny weather.
When repairs have been completed, the solar collector can be refilled
by following the steps outlined in “Filling the System” within the
“Commissioning” section of these instructions.
Replacing Broken Glass Tubes
The Stratco Solarcore
TM
hot water heating system will continue to function
normally if an evacuated glass tube on the solar collector is broken or
damaged. There will be a reduction in the solar heating performance and
the glass tube should be replaced as soon as possible by an authorised
Stratco installer.
To prevent injury, protective gloves and glasses should be worn when
removing and handling broken glass.
To remove the broken glass tube, depress the latches on the either side of
the plastic bracket at the bottom of the glass tube and unhook the plastic
bracket from the aluminium extrusion. Remove the plastic bracket from
the glass tube and slide the tube carefully off the copper heat exchange
tube. Slide the new glass tube over the copper heat exchange tube, refit
the plastic bracket and hook it into the aluminium extrusion. Ensure both
latches are engaged in the aluminium extrusion.
