this motor-actuated valve manages distribution to specific zones

What is the purpose of the right-hand pilot tap

Manual Safety Lockout: Prevents automatic equipment cycling after a freeze event

OEM Standards: Guaranteed physical fit and electrical compatibility with York S1-025-27747-018 systems

Self-Cleaning Contacts: The wiper-action slider bar mitigates carbon build-up and surface contaminants

Schneider Electric (Barber Colman) M400A-VB Actuator Els PW 17895 this motor-actuated valve manages distributionThe Schneider Electric (Barber Colman) M400A VB is a non spring return Forta globe valve actuator engineered for precise linear control in demanding HVACR applications. Operating on 24V AC DC power, this versatile unit supports both floating and proportional control signals, including 0 10Vdc, 2 10Vdc, and 4 20mA (utilizing the included 500 Ohm resistor). With a robust 90 lbf (400 N) force output, it is specifically designed for direct mounting to VB