SolarAttic PCS1, User Manual

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SECTION 3 - INSTALLATION Page S3-47
NOTE: The SWP plug refers to another optional relay that is used when a
polaris pool vac is used. This relay is used to delay the sweepÕs booster pump from
operating during the initial 4 minutes of solar startup. It prevents air bubbles from
entering and damaging the booster pump.
5. Connect the output of the relay to the PCS1 using one set of contacts.
NOTE: This assumes that the wiring of the pumpÕs power will be slaved to
the LX220 controller. If not, use both relay contacts for the PCS1 power .
6. Connect the output of the relay to the Pump using the second set of
contacts.
7. Wire the auxiliary timer and other devices as may be necessary.
8. Connect the attic temperature sensor wires to the SOL terminals on the
inside of the LX220. It does not make any difference which way the wires are
connected.
NOTE: The LX220 is shipped with nonpolarized 10K thermistor sensors.
9. Connect the pool water temperature sensor wires to the WTR terminals on
the inside of the LX220. It does not make any difference which way the wires are
connected. See note above.
10. Connect the valve operator plug to the VLV socket.
11. Close up the front electrical panel of the LX220 and apply power.
12. Test the LX220 by switching from OFF to ON [manual override]. Observe
the bypass valve operator turn on; pump turn on; and, PCS1 turn on.
13. Test the automatic mode by turning the thermostat up and down and
observing startup and stop while the LX220 is in
AUTO
.