Unit installation

SOLAR CONTROLLER AND SOLAR MONITOR
15
 The circulator will operate at full speed for approximately fifteen (15)
seconds.
After fifteen (15) seconds, the solar controller will commence to pulse the
circulator to reduce the flow rate through the collector circuit. This will
increase the temperature rise across the solar collectors and assist in
maximising the system efficiency for the available solar energy. It is
normal operation for the circulator to experience a pulsing effect.
 The red LED may emit a rapid pulse for a short period (whilst the green LED
is emitting a series of three (3) flashes), particularly if the solar collectors were
left uncovered during the final stages of the installation and commissioning
procedure.
This indicates a temperature difference between the hot sensor and cold
sensor of greater than 45°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 solar
collectors 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 from the solar collectors. This should be within four (4) to
five (5) minutes of start up, but may take up to ten (10) minutes.
Whilst the red LED is emitting a rapid pulse, the circulator will operate at full
speed. After the red LED has extinguished, the solar controller will commence
to pulse the circulator to reduce the flow rate through the collector circuit.
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 solar collectors
and collector circuit:
 switch off the electrical supply at the power outlet to the solar control unit
 repeat the procedure to bleed the solar collectors
Refer to the Owners Guide and Installation Instructions supplied with the
solar storage tank.
 switch on the electrical supply at the power outlet to the solar control unit.