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What funtion does the pink wire have on the honey well zone valve

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If you are referring to the two red wires, they are from an end switch that closes when to zone valve is wide open. You can use them to power a light so you know the zone is calling for heat or complete any other type of circuit.

Posted on Mar 30, 2011

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Posted on Jan 02, 2017

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Choose two colors of the thermostat wire, and connect them to the NO and COM and connect them to the zone control board leads for the zone intended. Almost all zone valves spring return open when deenergized. So ensure the zone valve is open with the system is off. At the base of zone valve there is a set screw that needs to engage the damper valve shaft in the open position with the motor in the spring release position. Most zone valve are 90 degree moment from full open to full shut. If you have a Carrier zone valve, they go full open to full shut in 45 degrees of motion. Your open stop need to be set so the valve stops in the full stop position.
To help understand the operation of a zone system, say you have 2 zone system and zone 1 thermostat initiates a heat or cool demand. Zone 2 valves energizes and shuts and zone 1 stays open and allow air to heat/ cool zone 1. If zone 2 thermostat simultaniously initiates the same heat/cool demand, the zone 2 valve opens and both zone heat/cool. When either thermostat is satisfied the opposite zone valve closes and when both thermostat are satisfied both zone valves open.
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I have a Toro 240-06-04 which is almost identical to the 250. My sprinkler system on the number one valve quit working. I thought maybe it might be a solenoid, so I replaced that and it still didn't w


Connect the wire form a working zone to the valve to zone 1. If the zone comes on you have short in the wire for zone 1. You can confirm this by connecting it to the valve that was working and it probably will not. If you have a spare wire connect it to zone 1 and in pin 1 at
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Bad wire, no spare and you want to avoid running a new stretch. Merge this zone with a similar one by connecting both valves to 1 wire. If the pressure is good they should all work as 1 zone. Otherwise you will have to run a new stretch.

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This problem has to be in the way the valve was wired. Wrong zone valve-Normally open instead of normally closed-power interuption causing valve to open. Faulty T-stat/ Most likely wired incorrectly.

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The two zones have seperate supply and returns, correct? If not zoning will not be possible without piping the system in that way. Assuming the piping is correct, for two zones, you will need two zone valves, one cut into each zone. The wiring will vary, but for a 3 wire zone valve, (Taco), power from the transfomer goes through the thermostat, into terminal 1 on the Zone Valve, Terminal 2 on the zone valve goes back to the transformer, (24v common), and also to one "T" terminal on the aquastat (boiler control), and Terminal 3 on the zone valve goes to the other "T" terminal on the aquastat.

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