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Old 11-29-2010, 11:48 AM   #1
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what the diference of 2 wire honeywell and 4 honeywell manual thermostat baseboard heat electric

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Old 11-29-2010, 11:57 AM   #2
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the diference of 2 and 4 wire thermostat heatbaseboard heat honeywell

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Old 11-29-2010, 01:16 PM   #3
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Generally, when dealing with line voltage thermostats, a 2-wire unit is a single pole, and a 4-wire unit is a double pole.

Double pole thermostats will completely disconnect both legs of a circuit when it is placed in the "off" position. This qualifies the thermostat as a "disconnecting means" when properly wired.

Single pole thermostats do not have an "off" position.
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