This model typically allows for manual positioning during commissioning or power failures to verify valve travel and prevent sticking

By utilizing this genuine Lennox OEM part

As a Single Speed Type 2 motor

the 3B74SK cast iron sheave is suitable for standard HVAC power transmission and conveying systems

Tecumseh K71-34 Relay Kit 320788-704 This model typically allows forThe Tecumseh K71 34 Relay Kit is a critical electrical component engineered for high reliability motor starting in commercial and residential refrigeration systems. This genuine Tecumseh K71 34 relay kit is specifically designed for 115V single phase HVAC compressor troubleshooting and replacement, providing the necessary torque to initiate the start cycle on AE3425A AA1A and AE3425Y AA1A models. As a veteran grade OEM compressor relay, this kit