Fixing an E.439 error code on a Navien tankless water heater that was part of a 4 unit series. Low water flow issue caused by clogged inlet screen. #plumbing #repair #trades #fyp #reels | The Plumbers Plunger

Are you checking this on start-up? After installation of the Navien, Inc NPF700 Hydro-furnace with @farrmechanical. We completed the tasks laid out by the start-up wizard. Tested the static pressure and performed a combustion analysis using a Testo North America 310 combustion analyzer. #hvac #hvacr #hydrofurnace #hvacsystem #hvaclife #combustionanalysis #hvacstartup #hvacequipment #hydronicsfurnace #hvaclife #hvacinstsallations #hvaceducation #hvactraining #HVACKnowledge #residentialhvacservice

installing a couple navien 240 A tankless water heaters | Evan Berns