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Old 10-14-2011, 12:42 AM   #1
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mitsubishi 1 ton mini-split

Hello o' learned ones:
Another question. We decided at the last stage in the addition of a 420 Sq ft room to use a mitsubishi mini-split heat pump unit for the new space rather than try to extend the existing system to the new room. I am doing all the carpentry and wiring, and I have all the low voltage and branch circuit wiring in place, rough-in inspected, etc. I understand that the mitsubishi units use a control signal between the indoor and outdoor units which can interfere with radio and television signals. Mitsu recommends that the outdoor unit be at least 10 ft from any radio or tv equipment or antenna, and the indoor unit be at least three feet. I have newly placed cable wire crossing the location where the indoor unit's control/power cable will be running and will be within a foot of the TV coax, and it is impractical to try to run the cable coax in a different direction. The TV Coax is Belden's version of RG6-Quad. My installer says he thinks he can get a shielded control cable from mitsubishi, but I'm wondering if I should also put the control cable in grounded emt. The installer says he has never had any interference issues, is there a significant risk of interference?
Thank you.


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Old 10-14-2011, 08:19 AM   #2
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If you use the factory control cable, it is shielded and interference will not be a problem.


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Old 10-14-2011, 05:50 PM   #3
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Thank you

Didn't realize the factory cable is shielded, thank you.
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