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  1. 12-15-2004, 08:35 AM #1
    sullivanjay
    sullivanjay is offline Regular Guest
    Join Date
    Dec 2004
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    1
    I have to replace a Pressure Differential Switch in propane direct vent heating system.
    It’s an Olsen 160 BTU forced hot air unit. It’s short cycling and if I jumper out this switch it works fine. Question is what range switch do I use. I can get one with a WC of 0.20 to 1.0 or WC 1.0 to 4.0. I think it’s the 1.0 to 4.0 but not sure. No markings on the old one and can’t find the specs.
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  2. 12-15-2004, 06:21 PM #2
    flange
    flange is offline Professional Member
    Join Date
    Mar 2003
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    7,249
    why not hook up your digital manometer and measure the actual, then you'd know for sure.
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