page 30 - Commissioning the Pumping Station
Technical changes may be made without notice
Commissioning the pump station
Commissioning the solar controller
Number of collectors
Minimum Flow rate (l/min)
1 2
2 4
3 6
4 8
With the pump running on full speed, the flow rate through the system can
be adjusted by turning the isolator on the top of the flow setter.
To ensure the primary solar system is free from air you must manually
switch on the circulation pump on the pump station via the solar differential
temperature controller. To see you have circulation through the system the
flow setter should give a reading of around 7 to 10 litres per minute.
The maximum flow of fluid through the system needs to be adjusted to give
optimum performance. This will depend on the number of collectors used
in the installation.
Commissioning the solar controller
The recommended settings for the solar controller are:
•
Switch on temperature difference 7°C
•
Switch off temperature difference 3°C
•
Minimum pump speed 40%
•
Store max temperature 65°C
•
For thermal stores or if the outlet temperature is controlled with a
suitable TMV then store max may be set to 85°C
For pipe runs which are greater than 10m from the store to the panel it is
recommended to increase the switch on temperature difference to accom-
modate for any possible heat loss.
To change any of the settings above please refer to the controller installa-
tion manual supplied with the controller.
Other functions on the controller are optional but are not necessary for
most systems. The descriptions of these functions are in the controller
manual.
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