Carrier 331831-701 Adapter Assembly 320788-702 Life safety systems require UL555S

Life safety systems require UL555S rated actuators specifically designed for high-temperature cycles

Is the bulb position sensitive

Key Benefits Direct OEM Compatibility: Engineered as the exact replacement for HD58DL851 to ensure seamless mechanical and electrical integration without modifications

This board is specifically designed for two-compressor YCIV screw chillers utilizing a VSD architecture

there is no functional difference

Carrier 331831-701 Adapter Assembly 320788-702 Life safety systems require UL555SThe Carrier 331831 701 Adapter Assembly is a critical OEM replacement part designed for high performance integration within Carrier, Bryant, and Payne heat pump and air handler systems. Engineering this assembly as a Factory Authorized Part ensures that it meets exact manufacturer tolerances, maintaining the structural integrity and operational efficiency of the refrigeration or ventilation circuit. For technicians, this part is essential when