Tag: Aprilaire 8870 Communicating Thermostat

Aprilaire 8870 Communicating Thermostat CAUTION: Do not set to OFF mode during periods when freezing temperatures could occur. Thank you for your recent purchase of an Aprilaire® Communicating Thermostat. With this purchase, you have invested in the highest quality thermostat currently available. This Model 8870 Communicating Thermostat operates similarly to a conventional thermostat but has…