I have the Lunos HRV e2 system in my tiny home and I need help.

L Dingwall May 24, 2018, 11:06 p.m.

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!

Responses (2)

Ecohome May 25, 2018, 1:23 p.m. Reply

The Lunos 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 indivual 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.  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, but I just spoke to 475 Building Supplies (a distributor in New York), they would need a bit more information to trouble shoot it but they said you were welcome to call - 718 622 1600. They also sent me an operation manual that can give you a better understanding of how it operates.  https://foursevenfive.com/wp-content/uploads/2015/09/1121V2.2CT-Lunos-Operating-Manual-1.pdf

And as for accessing the unit, maybe a small scaffolding? It's hard to say without seeing it! Best regards. 

L Dingwall May 28, 2018, 2:43 p.m. Reply

This is hugely helpful. Thanks so much!