ductwork joints

This pressure switch assembly acts as a primary safety mechanism

Common Questions When should the Lennox 99M77 gasket be replaced

Calibration is performed via the dual-adjustment dials under the cover

Built to withstand demanding thermal and pressure cycles

Trane CPT0421 Run Capacitor R-410A ductwork jointsFor high demand service calls, the Trane CPT0421 Run Capacitor provides the reliable phase shift field necessary for compressor and motor efficiency. This 55 MFD 440V capacitor features a heavy duty round case design and is factory equipped with a discharge resistor, which bleed off stored voltage to protect sensitive control boards and diagnostic tools during maintenance. As a genuine OEM HVAC replacement part, the CPT0421 maintains the precise