Ours is controlled by the same thermostat. The thermostat has 2 zones (one for each AC) with the temperature sensor located in each zone. When operating on 30 amps, during the day leave the Zone 1 AC in bedroom off and close bedroom and bath door while setting Zone 2 to AC setting of choice. At night on 30 amp, turn off Zone 2 AC and turn on Zone 1 to AC setting of choice. The thermostat has a zone button to go from one zone to the next so settings are individually controlled for each zone by one thermostat. Hope this helps.