International Environmental 71520318 Thermostat R-410A manufacturer-approved repair that maintains the

manufacturer-approved repair that maintains the integrity of the combustion cycle

and Delta systems

This increases or decreases the effective pitch diameter

The rated capacity varies by refrigerant

International Environmental 71520318 Thermostat R-410A manufacturer-approved repair that maintains theThe International Environmental 71520318 is a high performance digital non programmable fan coil thermostat engineered for precise climate control in commercial and residential 2 pipe and 4 pipe hydronic systems. As the direct replacement for 71520304, this unit offers a seamless retrofit for technicians servicing legacy IEC fan coil units. Operating on 24VAC low voltage, it features 3 speed fan control capabilities (Low, Medium, High) and auto