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Old 09-24-2013, 07:58 AM   #1
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Mr. Slim Wiring


Hello All,

I am sure this is a simple question, but I have read the manual, watched youtube videos and of course looked in the forum, but I am missing something. I am installing a Mitsubishi 28,600 MultiZone cool/heat pump condenser with two mitsubishi 18,000 btu air handlers model MSZFE18NA.

When wiring the electrical I am running a 20 AMP 220 line to the Condenser. Do I also run a separate 220 line to each blower, or run a line from condenser to each blower? It seems people do it both ways? I know you require a control line to each blower but it seems like there are only 3 wire to connect to the blower and I can run 12/3 BNC from condenser to blower.

If anyone knows the best way to do it, please let me know.

Thanks in advance

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Old 09-24-2013, 12:14 PM   #2
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Mr. Slim Wiring


from condensing unit to evaporator ..... all the one I have installed are that way....

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Old 09-24-2013, 07:40 PM   #3
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Mr. Slim Wiring


Read the manual. The indoor units are powered from the outdoor condenser. Use 14-3 with ground from the outdoor unit connections to the indoor unit connections
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Old 09-24-2013, 08:22 PM   #4
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The inside air handlers are typically powered from the outdoor unit - the instruction manual should speak to this.
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