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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!

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14y ago
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1mo ago

A 3 Ton heat pump typically requires a 30-amp breaker for the outdoor unit and a 20-amp breaker for the indoor air handler. However, it's best to consult the manufacturer's specifications or a licensed electrician to ensure proper sizing based on the unit's specific requirements.

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Q: What size breaker do you need for a 3 Ton heat pump?
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