Owner’s Manual – Solar Water Heaters
22
H3165 029664 Rev. B
1. Filling the System:
Once all of the connections have been made,
fill the water heater and solar collectors as
described on pages 20 and 21.
Inspect all of the connections and pipework for
leaks.
2. Turn on Power and Gas:
Plug in the solar controller and turn on
the GPO.
For electric boosted models, turn on the power
isolator.
For gas boosted models, turn on the gas
isolator, plug in the power supply and turn
on the GPO.
3. Remove Solar Module Cover:
Remove the Solar Module Cover as described
on page 10.
4. Check Temperature Sensors:
To change the parameter shown on the
controller display, briefly press the “+” button.
Pressing the “+” button for more than 2
seconds may cause the controller to go into
adjustment mode. This is indicated by “SET”
on the display. As the solar controller has been
factory pre-set, do not adjust any parameters.
Wait about 15 seconds and the controller will
revert to display mode.
Press the “+” button several times until “COL”
is displayed. The temperature indicated is the
collector sensor temperature. It should be
between ambient and 150°C.
Press the “+” button again. “TST” should be
displayed. The temperature indicated is the
lower tank sensor temperature. It should
be between 0°C and 30°C if the tank has just
been filled with water.
Press the “+” button again. “S3” or “TSTT”
should be displayed. The temperature indicated
is the upper tank sensor temperature. It also
should be between 0°C and 30°C if the tank
has just been filled with water.
If the temperatures indicated are outside of the
ranges described, or the LED under the display
is red instead of green, please contact Dux After
Sales and Service.
5. Check Pump Operation:
If the conditions are suitable, the circulation
pump will start. Normally this will occur if:
• the collector temperature is above
15°C, and
• the collector temperature is more than 10°C
above the lower tank temperature.
If the circulation pump is running, one LED will
be green and one LED will be yellow.
If the pump does not start when the conditions
are suitable, or if one of the
LEDs is red, please contact Dux After
Sales and Service
6. Check Gas Booster Operation:
For gas boosted models, test the operation
of the instantaneous gas water heater as
described in its Installation Manual.
7. Replace Solar Module Cover:
Replace the Solar Module Cover as described
on page 10.
Commissioning
