Navien NPE-240A and NaviCirc Installation Question
Oct 25, 2021 · Hello, I just had my Navien NPE-240A (EDIT: It's actually an NPE-240A2) and NaviCirc installed today. First time tankless user. I was reviewing the manual and installation after they left, …
Navien NCB-240 Combi Boiler - DHW is fine, NO HEAT
Oct 5, 2022 · 2/2022 Partner replaced a 1969 American standard gas boiler and dying water heater with a Navien NCB 240 Combi Boiler. Heat was fine from Feb thru April...
Navien NCB-240E Pressure Dropped - Love Plumbing & Remodel
Oct 15, 2018 · So my Navien had a code E351 along with the ranch sign on. I called Navien support and was told to read the PSI after I plug out and in the system. PSI was 4.1. They told me to call a …
Navien NPE-180A -- Internal Circulation vs External Circulation?
Aug 22, 2020 · As your Navien is an 'A' model (NPE-180'A'), it is equipped with a recirculation pump and buffer tank which are not included in the none 'A' models. Without a volume of pre-heated water in …
Navien NPE 240A2 Intermittent Low flow - Love Plumbing & Remodel
Oct 2, 2022 · Hi, I have been struggling to the past few weeks with intermittent problems of hot water dropout on a 4 month old Navien NPE240A2 system. Setup: NPE 240A2 installed on exterior of …
Navien 240A not getting generating very hot water
May 11, 2021 · Hello I have a Navien NPE 240A. About 6 yo. Propane. Re-circulation pump programed to run 5AM to 10PM. I clean the filters and de-scale annually. I'm seeing a variation of the issues …
Navien NCB manifold piping - Love Plumbing & Remodel
May 28, 2019 · The heat exchanger in the Navien is a water tube type with a high pumping head, and isn't designed for high flow rates, but also requires a minimum flow rate to avoid microboil on the …
Controling Navien NPE internal recirculation pump
Dec 15, 2016 · Does anyone know the logic behind how Navien controls their internal recirculation pump when it is circulating with an external loop? This would be with the second dip switch in the "On" …
Tankless advice from the crowd: Navien, Rinnai, Noritz
Oct 19, 2021 · I have narrowed down my tankless choices to the three in the poll. What I've gathered from my research is that Navien is easy to maintain and has nice features, SS exchangers, and is …
Navien NCB240E Pressure problems - Love Plumbing & Remodel
Dec 10, 2020 · My Navien Combi Boiler installed Dec 2019 consistently runs at a high pressure - 27-30psi. The following conditions exist: I have a 4-zone system with Tac0-570-2 valves in a 3,000 sq. …