Titus HVAC 311713-07 Assembly Kit 319825-402 it is the standard defrost

it is the standard defrost sensor replacement for many Bryant and Payne heat pump systems

It is equipped with a spring return exposed pneumatic actuator featuring a 3-6 PSI spring range and an integrated pneumatic positioner

Flexible Installation: Universal design supports DIN rail or surface mounting to fit any control cabinet configuration

For technicians managing Carrier HVAC maintenance

the kit may require replacement to restore the control circuit

Titus HVAC 311713-07 Assembly Kit 319825-402 it is the standard defrostThe Titus HVAC 311713 07 Assembly Kit is a direct replacement Primary Inlet Damper Assembly designed for 14 inch VAV terminal unit configurations. Engineered for precise airflow modulation, this kit ensures accurate pressure independent control within HVAC zone systems. Constructed to meet Titus OEM specifications, the assembly features a high torque damper blade design and heavy duty shaft linkages to eliminate hysteresis and maintain linear response