Contractor-Friendly Installation: The LRB24-SR actuator features a universal push-button manual override and a simple 2-10 VDC feedback signal for easy commissioning

making it a versatile stock item for service technicians

preventing compressor slugging or efficiency losses during the defrost cycle

a dedicated transducer or an analog-to-relay module would be required

Hoffman Specialty 401485 Water Vent 320074-702 Contractor-Friendly Installation: The LRB24-SR actuatorThe Hoffman Specialty 401485, or Model 78 Water Main Vent Valve, is a high capacity automatic air vent designed for efficient air elimination in hydronic heating and cooling systems. Engineered for closed loop hydronic systems, this vent features a 3 4" NPT connection and is built to withstand a maximum pressure of 150 PSI. Its primary function is to purge air from water mains and large distribution lines, preventing air bound system issues that lead