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About a tenth of a ton.
It depends on the efficiency and the Max amp draw to be safe (you could be lesser to a point depending on minimum ampacity) There should be a plaque that has a max over-current or max breaker size. some high seer a/c's might need a 20 amp breaker for a 4 ton some older units may be 50, you really need to check it with the plaque.
This is a 3 ton unit.
My 3 ton geo unit uses a 30 amp breaker. That is probably more than adequate because it also is for the vertical loop pumps in the ground. The back-up heat strips however, use a 60 amp breaker (on my system.) I'm not sure but I would say yours probably needs that too. Good luck!
How much a 4 ton ac ruud condenser weigh
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You need a 5 ton unit for that size house.
60 amp using AWG # 6 copper for branch circuits.
5 TON
10kw
4 ton
the right size fuse will be specified on the units data plate it will vary most likely will be a 20 or 30 amp though