Question about Kitchen Ranges
Honeywell TZ-4 HVAC controller; 4 zones hooked up with power up zone closure dampers ; 3 zones w/ 2 dampers; 1 zone w/ 1 damper. Worked fine for first couple of days as should have. Now will only work if all zones are calling for heat leaving all zone dampers in naturally open position. Transformer is 24 volt a/c 75va. Voltage at 26 volts to 27 volts regardless of load. When first zone satisfy's within seconds it goes into purge mode opening all dampers and shutting down the furnace. Will not allow furnace to operate again until all zones call for heat? Any ideas??
There is a "zone a lone" switch on the upper right side of the panel. Make sure it is in the "occupied" position. I believe that is up. If that doesn't work reply back.
Posted on Sep 18, 2008
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Posted on Jan 02, 2017
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