Schneider Electric (Barber Colman) MK-2690 Proportional Control Els PW 17895 When troubleshooting a system that

When troubleshooting a system that won't ignite or is throwing a pressure switch lockout code

especially in high-demand steam and hot water applications

If the boiler is experiencing lockout errors (like E 02) or "no spark" conditions during the ignition sequence

Includes a factory-supplied handi-box for secure wiring and protection

Schneider Electric (Barber Colman) MK-2690 Proportional Control Els PW 17895 When troubleshooting a system thatThe Schneider Electric Barber Colman MK 2690 is a specialized pneumatic valve actuator engineered for precise proportional control in demanding HVAC applications. This compact unit features a 6 sq. in. effective area and is primarily designed to drive 1 2" to 2" globe valves, including the VB 7000 series and discontinued VB 9xxx models. Built with a rugged die cast aluminum housing and a NEMA 1 enclosure, this actuator ensures linear movement with a 1