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SOLAR CONTROLLER AND SOLAR MONITOR
COMMISSIONING
Refer to the installation instructions supplied with the solar storage tank for the
complete commissioning procedure.
When the electrical supply is switched on to the solar control unit at start up:
•
If there is no solar gain, the circulator will not activate and the green LED
will emit a slow pulse.
The slow pulse indicates the circulator is not activated and the power to the
solar control unit has been on for less than 48 hours.
•
If there is solar gain, the circulator activates and the green LED will emit a
series of three (3) flashes.
The three (3) flashes indicate the circulator is operating and power to the
solar control unit has been on for less than 48 hours.
•
The circulator will operate at full speed for approximately fifteen (15)
seconds. If the red LED is emitting a rapid pulse, the circulator may operate
at full speed for up to ten (10) minutes.
After fifteen (15) seconds or after the red LED has extinguished, the solar
controller will commence to pulse the circulator to control the flow rate
through the collector circuit and achieve a constant temperature rise across
the collector(s). It is normal operation for the circulator to experience a
pulsing effect.
•
The red LED may emit a rapid pulse for a short period.
This indicates a temperature difference between the hot sensor and cold
sensor of greater than 40°C and does not represent a fault code. This is the
result of a build-up of heat and increase in water temperature in the
collector prior to the switching on of the electrical supply to the solar control
unit.
The rapid pulsing of the red LED will cease as the water circulates and the
heat is dissipated. This should be within four (4) to five (5) minutes of start
up, but may take up to ten (10) minutes.
If the red LED does continue to emit a rapid pulse for longer than ten (10)
minutes, this may indicate water is not circulating through the collectors and
solar circuit:
switch off the electrical supply at the power outlet to the solar control unit
repeat the procedure to bleed the solar collectors
switch on the electrical supply at the power outlet to the solar control unit
10
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