Utica-Dunkirk 121000020 Thermostat 320788-702 4 kW) on R22/R407C and

4 kW) on R22/R407C and approximately 4

reducing troubleshooting time when diagnosing pressure switch stuck open or closed errors

50 to 90 Degree Thermometer Range

provided the system's safe operating limits align with the 650 PSI cutout

while the stainless steel power element provides superior corrosion resistance

Utica-Dunkirk 121000020 Thermostat 320788-702 4 kW) on R22/R407C andThe Utica Dunkirk 121000020 Changeover Thermostat is a critical infrastructure component designed for secondary control within specific hydronic heating and cooling configurations. Engineered for precise temperature based switching, this mechanical changeover control ensures accurate system transitions between heating and cooling modes based on fluid temperature. For technicians servicing legacy or high efficiency boilers and air handlers, the