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  1. #1
    Join Date
    Jan 2004
    Location
    Midlothian, Virginia
    Posts
    195
    just getting into light commercial work and ran into lock out switchs and random start switches on mammoth water source heat pumps in building. after studing schematics i figured out the lock out switch, but dont understand what the random start switch is for or how it works.

    is there a web sight for mammoth that i can get installer manuals for these systems and how does a random start switch operate?
    Goodbyee stranger it's been nice. Hope you find your paradise! Hey it aint rocket science, "It's a Trade !"

  2. #2
    Join Date
    Aug 2003
    Posts
    1,311
    Norman S. Wright is the west coast and western area sales rep for them, also Mammoth would help you out with literature requests, and tech support.

  3. #3
    I think the random-start relay is to allow staggered starts on a heatpump building controlled by a BAS (ddc),also acts as a anti-cycle timer for compressor protection.

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