Can you help trouble shoot my Lunos HRV e2 system in my tiny home?
The LED light came on indicating a filter change, though my builder told me that was optional. Do I need a new filter or can I wash and reuse the existing one? Any tips for getting to a unit that's 12' high no place to put a ladder to reach it? (It's above my bed, which is built into the floor and bolted to the wall) A couple of days ago one of the units (not sure which) started making a fan-type noise, almost like white noise. It's always been silent till now, so that has me concerned. I'm not confident in my understanding of the system. I'm on my own and I had my house built because I'm unwell and needed to pare down, but my builders are in Canada (I'm in North Carolina) and they're quite busy. Anyway I'd be incredibly grateful for any advice you can offer. Thanks so much!
The Lunos ductless wall insert ERV is very different than normal HRV's. Rather than having a centralized core where the heat exchange takes place, Lunos units each have a ceramic core and their own individual fans. They work in pairs, with one unit blowing in while the other blows out. Exhaust air heats the core, and incoming air is warmed by the core, and in order to make that happen, they change directions every 70 seconds. See our video installation on this page -
Lunos ductless HRV DIY installation video
So if it's doing something different than that then you should for sure look into it. When it's operating, time it between intervals, you should hear it stop for a second or so then start up again in the opposite direction.
For the filter, yes, you can just remove it, wash it and reinstall it, afterwards you should toggle the switch off and back on. We have installed some in our demo house but we aren't a distributor so I can only help so much.And as for accessing the unit, maybe a small scaffolding? It's hard to say without seeing it! Best regards.
This is hugely helpful. Thanks so much!