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Great68 · 05-26-2023, 09:17 AM

That really depends on size & make/model of your unit.

My 3-ton used a 30A/240V 10-2 supply to the outdoor unit, and 14-3 power/control from the outdoor unit to the indoor unit.

A 4 or 5 ton might use a 40A/240V 8-2 to the outdoor unit. And some models might need the neutral, so then you'd need a 3 conductor.

You won't know what your exact requirements are until you select your unit.

05-26-2023, 09:17 AM	#4
Great68 Willing to sell body for a few minutes on RS Join Date: Mar 2002 Location: Victoria Posts: 10,920 Thanked 5,570 Times in 2,048 Posts Failed 188 Times in 103 Posts	That really depends on size & make/model of your unit. My 3-ton used a 30A/240V 10-2 supply to the outdoor unit, and 14-3 power/control from the outdoor unit to the indoor unit. A 4 or 5 ton might use a 40A/240V 8-2 to the outdoor unit. And some models might need the neutral, so then you'd need a 3 conductor. You won't know what your exact requirements are until you select your unit. __________________ 1968 Mustang Coupe 2008.5 Mazdaspeed 3 1997 GMC Sonoma ZR2 2014 F150 5.0L XTR 4x4 A vehicle for all occasions Last edited by Great68; 05-26-2023 at 09:22 AM.