Johnson Controls V-9502-20 Spring A 3-flash or 4-flash code

A 3-flash or 4-flash code typically indicates the switch is failed to close or is stuck

F-3754 cap

It serves as a suction line or liquid line drier depends on the specific chiller configuration

If your original hardware is missing

In a York S1-024-36052-009

Johnson Controls V-9502-20 Spring A 3-flash or 4-flash codeThe Johnson Controls V 9502 20 is a high precision pneumatic positioner spring engineered for seamless integration with V 3000 series pneumatic valve actuators. Designed specifically for industrial and commercial HVAC applications, this spring ensures consistent feedback and accurate valve stroke control. By providing the mechanical resistance necessary to counteract air pressure signals, it allows for finite modulation in complex hydronic and steam