Question about Honeywell CT87B ROUND HEATING&COOLING MECHANICAL THERMOSTAT - WHITE Heater

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IVE GOT A HONEYWELL T87A 3 WIRE THERMOSTAT MOUNTED ON THE WALL AND WHEN I WANT TO TURN ON MY HOT WATER BOILER I HAVE TO LOWER THE T-STAT SETTING INSTEAD OF INCREASING IT TO GET THE HEATING SYSTEM TO TURN ON THIS THERMOSTAT WAS WIRED INTO A ZONE CONTROL BUT NOW THE ZONE CONTROL HAS BEEN ELIMINATED.DO I NEED A 2 WIRE T-STAT INSTEAD?

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I would switch to a two wire heating only stat It sounds to me like they have the boiler wired into cooling side. Do you also have to set switch on your t-stat to cooling or leave it on heating. Just curious. I would still go with two wire stat. Thanks.

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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