This dimension is specifically calibrated for the larger combustion chambers found in the 400k through 600k BTU output units to ensure a comprehensive seal

simply insert the provided skipper screws into the corresponding days on the 7-day skipper wheel located behind the 24-hour dial

By using the integrated mounting bracket and wiring elbow

this unit fits gauge glass connections perfectly

The overall C-dimension is approximately 24

Trane CNT3601 Control 319848-301 This dimension is specifically calibratedThe Trane CNT3601 is a performance critical SPDT Defrost Control designed for precise thermal management in Trane and American Standard HVAC systems. Engineered with a setpoint range of 10 60F, this OEM replacement part ensures accurate defrost cycle initiation and termination, preventing indoor coil frosting during low ambient cooling or heat pump heating operations. The 52. 5 inch lead length provides the necessary reach for complex wiring harnesses