Question about Honeywell CT87B ROUND HEATING&COOLING MECHANICAL THERMOSTAT - WHITE Heater
On a 2 wire heating control, the 2 wires would be connected to the "R" and "W" terminals of the thermostat. The thermostat is simply a switch that routes power to the different connections inside it for different applications. Power comes in on "R" and is sent to "W" when there is a call for heat.
Posted on Oct 02, 2010
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Posted on Jan 02, 2017
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