Lennox 17D97 Harness Constant Torque Kit 320788-702 or a specific pressure switch

or a specific pressure switch lockout code appearing on the control board LED

OEM Compatibility: Designed specifically for Carrier furnace parts

Reliable Proving: Provides a 100

For field technicians and contractors maintaining Lennox furnace systems

and CHB-150 series

Lennox 17D97 Harness Constant Torque Kit 320788-702 or a specific pressure switchAs a field technician, you know that maintaining precise airflow in residential and office HVAC systems starts with the integrity of your wiring. The Lennox 17D97 Harness Constant Torque Kit (Model 620621 01) is an essential OEM accessory designed for ECM motor communication and power delivery. This constant torque harness kit serves as the critical link between the integrated motor control and the furnace or air handler control board, ensuring