Nordyne 632495R Pressure Switch 340155 7026 The Johnson Controls VG1845ER is The Johnson Controls VG1845ER is a precision engineered 3 way ball valve designed for high performance HVACR control This 3 4" NPT trap is highly resistant to water hammer and is a preferred choice for energy saving steam trapping applications where long term reliability and repairability are essential for reducing operational overhead The Nordyne 632495R Pressure Switch is the critical OEM safety component specifically calibrated for Nordyne furnace troubleshooting and maintenance Standard practice dictates using the Nordyne 632495R because universal switches often feature wide tolerances