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Old 06-09-2010, 06:39 PM   #1
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How are condenser fan motors and evaporator fan motors wired? Series, parallel or both? Please help....

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Old 06-09-2010, 06:56 PM   #2
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Why do you want to know? On what kind of equipment are you looking at? commercial refrigeration or residential?

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Old 06-09-2010, 06:58 PM   #3
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Series to what.
Parallel to what.

What are you wiring to what.
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Old 06-09-2010, 06:59 PM   #4
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Taking HVAC course and cant find answer. Residential application, but does it matter?
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Old 06-09-2010, 07:04 PM   #5
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Well. Residential is easier to answer. Sort of.

But before doing so.

Some commercial and industrial systems, have multiple fans, which are wired in a series parallel configuration between themselves.

Residential condenser fans are wired in series with the contactor and defrost if its a heat pump, and parallel to the compressor.
The indoor blower is wired in series to the control board, and parallel to the condenser unit.
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Old 06-09-2010, 07:08 PM   #6
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Yep, research series and parallel circuits on the net or in some electrical textbooks. Here is a service info file from Lennox to study:http://tech.lennoxintl.com/PDFs/0521f.pdf

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