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Old 06-19-2009, 09:24 PM   #1
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Transformer question
Hey guys,

On some new high-efficient furnaces with DC motors, there is a 2-wire transformer attached to the blower. Most transformers have a primary and secondary winding(hence 4 wires), this transformer only has 2 wires.

Anyone know what the purpose of this is?

Thanks

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Old 06-20-2009, 05:47 AM   #2
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What brad and model number furnace are you seeing this on?
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Old 06-20-2009, 06:42 AM   #3
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it is possibly just a coil......and not a transformer?
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Old 06-21-2009, 08:10 PM   #4
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Choke coil
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Old 06-21-2009, 08:20 PM   #5
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Quote:
Originally Posted by jwiehagen76 View Post
Choke coil
To prevent noise/harmonics interference.
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