Taco zone problems


Old 03-18-14, 05:03 PM
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Join Date: Mar 2014
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Taco zone problems

Hey guys got a new house I just bought it has 3 zoned heat I'm having a problem with my zone 2, it will only fire on when my zone one is on and I know why I just need some help with wiring,but I beleive the call switch to turn the oil furnace on when the thermostat is turned on isn't connected, terminal 3 that is I would like to be able to shut down and turn all zones on independently and it looks as if zone 1 and 2 are daisy chained together I just need to know what wire to attach to the third post on zone 2 to make it function by itself. Thanks a lot
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Old 03-21-14, 04:51 PM
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Join Date: Nov 2012
Location: USA
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Check out the Taco website for zone valve wiring, but one #3 should be connected to all #3 terminals then to the boiler control T.Terminal One wire from the zone 2 thermostat should be on #1 of the zone valve for zone 2, the zone valves should only have one wire each on #1 terminal.

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