Wiring A Honeywell Zone Valve

 
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Old 11-11-2009, 07:05 AM   #1
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Wiring A Honeywell Zone Valve


I have to wire a 4 wire honeywell zone valve for a radiant heat zone addition to a boiler. there are two existing zone valves that are fielf wired to the boiler but the addition will be wired into a BG zonetrol ztv-4 zone valve controler. there will be a zone valve, circ pump as well as the boiler as the radiant zone has its own t-stat.
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Old 11-11-2009, 11:21 AM   #2
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Re: Wiring A Honeywell Zone Valve


should be two pair, reds and yellows.

The yellows are wired in series with the transformer and thermostat. The t-stat opens the valve.

The reds are a separate switch that is activated when the valve is open/closed. These attach to a relay that controls the pump.

There are a couple different ways to wire the system. They should be covered in the instruction sheet that comes with the valve.

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Old 11-11-2009, 04:28 PM   #3
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Re: Wiring A Honeywell Zone Valve


The connection diagram in the B&G manual looks pretty simple. You can see where the transformer and TT wires to the boiler connect. The T-stat wires connect on top, zone valve wiring on the bottom. It doesn’t sound like you’ll need priority, so leave that switch in the off position.

http://www.bellgossett.com/literature/files/592.pdf

Last edited by DuMass; 11-14-2009 at 10:18 AM. Reason: typo
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