Always verify that the sensor rod is free of carbon buildup and that the chassis has a solid common connection

What does the 'R' in the part number 621451R signify

Compact Footprint: Fits standard mounting brackets found in most commercial refrigeration equipment

this 160F auto limit switch monitors the supply plenum temperature to prevent heat exchanger damage or unsafe operating conditions

and F42D72A13

ASCO 8220G11-240V Solenoid Valve Refrigerant Always verify that the sensorThe ASCO 8220G11 240V is a high performance 2 way normally closed solenoid valve engineered for demanding steam and hot water applications. This 1 1 2" NPT pilot operated valve features a robust brass body and high grade EPDM diaphragm, ensuring exceptional durability in extreme thermal environments. Operating at 240Vac, it provides a substantial 22. 5 Cv flow coefficient, making it an ideal choice for large scale boiler systems and industrial fluid