Owner`s manual

8. OPERATION & ADJUSTMENT OF THE DIGITAL CONTROLLER

Caution:

Do not alter the Digital Controller’s programming and settings without authorisation from Siddons

or a qualified technician.

This following section is provided for qualified technicians to assist in servicing, repairs

or trouble shooting.

7.6 Flushing of the Water Storage Tank

As with other hot water heater tanks, dissolved solids in the water or scale may accumulate in

the bottom of the water tank forming sludge. This is generally less of a problem with your

Solarstream because no internal elements or burners are used.

However, if sludge does build up, the following procedure can be followed to clean out the tank:

1) Turn Off power to the unit.

2) Turn Off water supply to the unit.

3) Remove the blanking plug (brass fitting) from the unused inlet (normally on the right hand side

for left hand connected tanks). The inlets are at the bottom of the tank about 300mm up from

the base.

4) Remove the blanking plug from the unused hot water outlet (normally on the right hand side

for left hand connected tanks). The outlets are at the top of the tank.

5) Allow the water to drain from tank. Whilst the water is draining, a non-metallic rod may be

inserted through the open cold-water inlet and used to break up any sludge and assist in its

removal.

6) Turn the cold water supply back on whilst the tank is emptying or after the tank has been

drained and continue with mechanical agitation to further assist the removal of the sludge.

7.5 Thermal Overload (Incorporated into Digital Controller)

All models are fitted with a digital controller for heat pump management. One function of the

digital controller is to initiate a shut down and lockout if the compressor reaches a temperature

of 105 degrees C. The heat pump will not automatically restart from this. Turning the power off

then back on will perform a re-set operation.

AIR TO WATER ALL IN ONE HEAT PUMP