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    hawk31's Avatar
    hawk31 Posts: 3, Reputation: 1
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    #1

    May 1, 2009, 03:55 AM
    3 Zone Switching Relay With Optional Priority
    I am new to this site and don't know anything about HVAC electrical switching relay with priority for a gas furnace. My question is; If a switching relay with 3 zones is installed on a gas boiler what exactly does it do? For example If you give it priority to heat zones 2 and 3 does it bypass zone 1 completely and render the thermostat control in zone 1 inoperative?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    May 1, 2009, 05:20 AM
    >>>>>>Copied to HVAC<<<<<<
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