maintaining a fixed 1/8-inch spark gap to ensure consistent ignition cycles

The 4-bolt union connection allows for 360-degree diaphragm rotation

Key Benefits for Technicians Precise Calibration: Factory-set at 0

Flexible Installation: Includes a manual feed button for system testing and a rotating housing for easier piping and wiring in tight mechanical rooms

270 in-lb Torque Output: Provides reliable automation for oversized dampers and high-pressure air systems

Carrier HH18HA282 Thermostat/Sensor 318423-701 maintaining a fixed 1/8-inch sparkThe Carrier HH18HA282 is a high precision defrost thermostat sensor engineered for Carrier, Bryant, and Payne heat pump systems. This OEM replacement part, also identified by manufacturer number 3NT01L 04002, is a critical tube mount sensor designed to monitor evaporator coil temperatures. Operating on an L80 50 logic, the switch is calibrated to open at 80F and close at 30F, ensuring the defrost cycle triggers only when frost accumulation threatens