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Bypass Check
Plumbing Schematic–Flow Exceeding 70-GPM
Plumbing Schematics–Flow 70-GPM and Below
Use of an incorrect bypass valve may compromise the heat pump’s efficiency, reliability, and may void
the factory warranty. When using a bypass valve, order and install only an AquaCal PN: 2556 spring-
check bypass valve.
Failure to heed the following may result in damage to equipment.
CAUTION !