SolarAttic PCS1, User Manual

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SECTION 3 - INSTALLATION Page S3-6
Description of Valves
A. Solar Bypass Valve
Function : Allows the pool water to be routed up to the PCS1 for extracting the heat from the attic.
Operated automatically from the Compool LX220/2Y controller. Can be manually operated but this is
not recommended since the PCS1 can both heat and cool pools.
Filter
PCS1 IN
Bypass
B. Flowreversalª Valve
Function : Allows the pool water flow to be reversed so that the heated pool water rises from the pool's
main drain. Operated manually and left in reverse flow unless cleaning or draining the pool.
Flowreversal is a trademark of markUrban Products in Tustin, California. Recommended for inground
pools that do not have the main drain connected directly to a skimmer.
Main Drain Line
Return Line
PCS1 OUT
Proportioner
Valve Input
C. Proportioner Valve
Function : Allows proper skimmer suction to be maintained during reverse flow. Operated manually and
"set" once to obtain proper suction & water flow through the skimmers.
Pump Intake
Skimmer
Line
Flowreversal
valve output