Johnson Controls VB-3966-1 Valve Body R-410A indicating low refrigerant charge or

indicating low refrigerant charge or liquid line restrictions

providing technicians with a reliable solution for restoring valve functionality without the risk of improper seating or bypass leaks

Used with T26 Series Thermostats with Plastic Cover

It is commonly installed in Bard HVAC units as a safety protection device

it is recommended to replace the run capacitor whenever installing a new 1075 RPM fan motor to ensure proper phase shift

Johnson Controls VB-3966-1 Valve Body R-410A indicating low refrigerant charge orThe Johnson Controls VB 3966 1 is a robust 1 2 inch flare valve body engineered for precise control in HVAC hydronic systems. Designed for hot and cold water service, this two way valve features a Push Down to Open (PDTO) action and a 1. 7 Cv flow coefficient, making it ideal for terminal units like fan coils and reheat coils. The equal percentage flow characteristic ensures stable control throughout the stroke, compensating for the non linear heat