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What size wire do you run for a 5 ton outdoor air cooled condensor unit?
Wiki User
∙ 17y ago
A ton of A/C is 844.2 watts, so 5 tons is 4222.5 watts. Design extra 10 percent for constant load for total of 4650 W. Using 240 volts at 20 amps (W = Amps x volts), on 12 AWG wire, you would get 155 feet before having a 5% voltage drop. If inrush current is 30 amps at startup, you would have 7.5 percent drop in the cable during startup. To be safe, perhaps bump up a size (10 AWG) and have 4.7 percent drop during inrush (at 155 ft), or be able to run up to 170 feet at 30A load with 5 percent drop. In any case, because normal operating current is 20 A, you should use a 30 A breaker and thus 10 AWG wire, to be on safe side. If the unit is 120 V, the distances are halved for the same amount of drop.
Wiki User
∙ 17y ago
Anonymous
#12 gage
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Check with the manufacturer to see if they are compatible.
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4tons
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why is it important to have drainage for the outdoor unit
Why is it important to have drainage for outdoor unit on heat pump?
why is it important to have drainage for the outdoor unit
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Can you mix a heat pump condensor unit with a non heat pump indoor unit?
Check with the manufacturer to see if they are compatible.
What size wire is used for 18000 dual zone senville mini split?
You can use #10 or #12 THHN stranded wire with a 20 amp breaker for the outdoor unit. A disconnect is required within sight of the outdoor unit. The wire between the outdoor and indoor unit should be 14/3 with ground or 14/4 stranded. Do not use solid or aluminum wire for either application.
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