reducing intermittent "pressure switch open" fault codes common in aged systems

As a direct replacement for the J998MDA-2H and a universal substitute for J10_DDA and J11_DDA (D10 & D11) series types

The RIBMU1S is rated for 1/2 HP at 120 Vac and 1/3 HP at 240 Vac

If it trips again immediate

Enviro-tec PE-10-5105 Transformer Els PW 17895 reducing intermittent "pressure switch open"The Enviro tec PE 10 5105 is a heavy duty 50VA step down transformer engineered specifically for HVAC control circuits and VAV terminal unit applications. Designed for high voltage commercial environments, this 277V primary to 24V secondary transformer provides a stable 24V power supply for actuators, thermostats, and DDC controllers. Field technicians rely on the PE 10 5105 for its drop in compatibility with Enviro tec air handling systems, ensuring