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    Raypak 8450 comes on when there is no flow

    We have a Raypak 8450 heat pump that has been working fine to heat the pool but last night it mysteriously came on at 7pm (pool pump is timed to go off at 6pm) and it had been valved off all day and not used. It was not blowing cold air out the top so it actually wasn't heating but it was...
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    Underground wire type for heat pump/

    I am in the process of installing a140,000 btu heat pump (Raypak 8450) for my above ground pool. There will be 80' of underground cable. The circuit requires a 50 amp 2 pole GFCI and 6 awg wire. The wire will be installed in pvc conduit. I initially bought UF-B cable but after reviewing NEC...