Carrier HH79NZ077 Themistor 319852-301 making it better suited for

making it better suited for modulating steam pressures and equipment where air removal is critical during start-up

Engineered to handle the rigorous demands of mechanical contractors

Engineered for professionals handling fan coils and reheat coils

While primarily used in 24VAC control circuits

whereas the P70 series typically utilizes SPST or SPDT

Carrier HH79NZ077 Themistor 319852-301 making it better suited forThe Carrier HH79NZ077 Thermistor is a critical 10k ohm negative temperature coefficient (NTC) sensor designed for precise temperature monitoring in residential and light commercial HVAC systems. This OAT OCT sensor functions as both an Outdoor Air Temperature sensor and an Outdoor Coil Temperature sensor, providing essential feedback to the control board to manage defrost cycles and staging. Engineered for Carrier, Bryant, and Payne heat pumps and air