install the unit at the high points of the piping or at the ends of steam mains where air naturally collects

verify the specific orifice and spring kit requirements for the primary valve assembly being installed

The 39M84 is the specific Lennox catalog number for the Honeywell-manufactured ST9103A1069

Can I use this on a 208/230V system

Johnson Controls DP1400X5B21D Transducer Freon install the unit at theThe Johnson Controls DP1400X5B21D is a high precision low differential pressure transducer designed for critical HVAC monitoring and building automation systems. Engineered as a bidirectional pressure sensor, it handles a range of plus minus 0. 5"wc, making it ideal for cleanrooms, hospital isolation zones, and VAV box control. This unit serves as the direct replacement for DPT2641 0R5B, ensuring a seamless field upgrade without recalibration of the