and R134A refrigerants

Durable Construction: High-grade brass housing and robust internal components designed to withstand high-pressure HVACR environments

Simplifies the replacement process for contractors during comprehensive boiler service calls

Robust Construction: A heavy-duty brass body and nitrile (NBR) elastomers provide excellent chemical compatibility with water

Precision Flame Monitoring: Enhanced microprocessor logic ensures accurate flame rectification to prevent intermittent system shutdowns

Resideo TH5320R1002 Thermostat 30067439-890 and R134A refrigerantsThe Resideo TH5320R1002, part of the proven Wireless FocusPro 5000 series, is a non programmable digital thermostat engineered for high reliability HVAC applications. Operating on the RedLINK wireless technology protocol, this unit provides flexible installation options for 3H 2C heat pump systems or 2H 2C conventional setups without the need for pulling new thermostat wire. It delivers 1 degree accuracy and features a large, backlit display for clear