Johnson Controls D-251-6002 Diaphragm 30067439-890 Simple Installation: Standard 7/8-inch duct

Simple Installation: Standard 7/8-inch duct cutout with an integral gasketed flange simplifies mounting on sheet metal ducts

The 90-171 White-Rodgers includes a protective dust cover to prevent debris accumulation on the contacts and an interchangeable mounting plate for versatile installation in any orientation

Standard HVAC manifold gauges and electrical tools are required to verify pressure setpoints and secure wire terminations during setup

How do I wire the A19ABC-11 for heating vs

Robust Performance: Rated for 1A PV / 2A MV maximum loads at 60Hz

Johnson Controls D-251-6002 Diaphragm 30067439-890 Simple Installation: Standard 7/8-inch ductFor field technicians maintaining legacy pneumatic systems, the Johnson Controls D 251 6002 Diaphragm is the primary replacement component for Number 2 pneumatic actuators. This replacement actuator diaphragm is engineered from a durable synthetic rubber compound, specifically designed to restore the pressure seal and stroke integrity of D 251 series damper actuators. In the field, a ruptured diaphragm leads to air bypass and failed damper