Chapter 7
System Confi guration / Operational Logic
The solar panel generates electricity which is regulated by the solar controller. The solar controller monitors and
charges the 12 Volt AGM battery. The solar controller will shut off the electrical power to the compressor and con-
trols if the battery’s voltage (stored electrical energy) drops too low. Electrical power will only be restored to the
systems controls and air compressor when the solar panel thru the solar controller has recharged the battery.
The systems operational logic and how it operates is as follows.
When the pressure in the air tank falls to the pressure switches low setting (factory set to approximately 75 psi) the
pressure switch closes and the compressor will refi ll the air tank to the factory setting of approximately 95 psi.
Note:
Never adjust the pressure switch above 100 psi. Setting it above 100 psi will damage the air compressor.
When the pressure switch closes and starts the compressor it also starts the delay timer. The delay timer shuts off
the air supply to the air-out until the timer times out. The factory setting for this function is 63 minutes.
Note:
Do not decrease the delay time to less than 15 minutes.
After the delay time the air solenoid valve will open, supplying compressed air to the air-out connection. This cycle is
repeated 24 hours per day unless one of the following occurs:
1.
The solar controller shuts off power to the controls and compressor because the solar panel cannot produce
enough power to keep the battery charged. To alleviate this problem, one or more of the following steps may
need to be be performed.
•
Increase the delay time to give the solar panel enough time to charge the battery.
•
Increase the size of the solar panel.
Note:
the systems solar controller is rated at 15 amps or 180 watts. If a
solar panel rated at more than 180 watts is required, consult the manufacturer for advice.
•
Increase the number or size of the batteries.
Note:
The battery may need to be replaced and a weak battery
can cause a system shut-down.
2.
The product storage tank is full or the cable to the tank sensor has been cut.
•
When the product tank is full, the “A” LED on the sensor relay will be off, the power LED will be on and relay
#62 will be on.
•
If the cable is cut, the status of the LED’s listed above will be the same, however the tank will not be full
enough to lift the tank-full fl oat.
3.
Water has been detected by the optional tank conductivity probe.
•
When water has been detected the “B” LED and the “Power” LED will be on. Either remove the water from
the tank or remove the sensor from the water to re-start the system.
Note:
The product recovery operator
will need to determine which skimming system is pumping water and adjust its height or check it for damage
that could result in water being pumped.
•
If the cable to the conductivity probe is cut it will not shut off the air supply to the skimmer pumps.
23.
Note:
A filter
-
regulator (provided) must be used between the controller and pump. If no back pressure is present
when
the controller begins to supply air to the pump, the unit will discontinue the supply phase and begin the delay
phase.
Note:
At initial start up, back off filter
-
regularator pressure to zerio psi. After supply cycle begins, increase air to
pump to desired pressure.
