I am looking at installing a sub panel for an existing heat pump. The HVAC contractor just extended an existing AC circuit but didn't noticed that the circuit was also used for the range.They never looked in the panel to see the 30 amp range circuit piggy backed with the AC circuit.

The heat pump specs say a min 21.5 amps and max breaker size is 35 amp. It looks like the feeder is #12 to me. I couldn't get the arc shield off the HP disconnect to confirm as I have to reposition the shield to get it off.

I assume this whole circuit needs to be 30 amps