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  1. #1
    Join Date
    Sep 2008
    Location
    Wisconsin
    Posts
    105

    Frown ...Zone valve end switches...

    Whoa, Hi Y'all. O.K. Check this out. We only like to use zone valve actuators with end switches on them so as to confirm that the valve is open before the compressor runs. As of late we have had real problems with Belimo valve actuator end switches loosing their adjustment and therefore not bringing on the compressor once the valve is open. I'm tired of dealing with these valves. Can anyone recomend another valve actuator with an end switch that they have had sucess with?
    It's not going to fix itself...

  2. #2
    Join Date
    Jul 2011
    Location
    East coast USA
    Posts
    1,002
    why do you use these? whats the point?

  3. #3
    Join Date
    Feb 2012
    Location
    Pacific Northwest
    Posts
    96
    Quote Originally Posted by dlove View Post
    why do you use these? whats the point?
    Probably to ensure that there is water flow through the condenser prior to the compressor coming on. Also it keeps pump volume down during down times when VFD controlled building water pumps are used.

    In some buildings it's part of their "LEED" or energy conservation schemes.

  4. #4
    Join Date
    Jul 2011
    Location
    East coast USA
    Posts
    1,002
    Quote Originally Posted by HotWaterHeat View Post
    Probably to ensure that there is water flow through the condenser prior to the compressor coming on. Also it keeps pump volume down during down times when VFD controlled building water pumps are used.

    In some buildings it's part of their "LEED" or energy conservation schemes.
    Why not a Pressure actuated water regulating Valve.

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