Will the B2220NC work on my PBE123G35CC thru-the-wall AC with heat?

The PBE123G35CC thru-wall AC is supposed to come with a remote control rather than requiring a thermostat. If yours did not come with one, we recommend looking into finding a replacement remote rather than exploring thermostat options as that remote is made to specifically work with that AC. The model number for that remote is 30510405_L19569. If this doesn't fix your issue, give us a call and one of our experts will be happy to assist you.