Lunos E2 HRV
Kerry Lynch| Posted inBuilding Code Questionson
Does anyone have experience in Canada getting permission from local building inspectors to install the Lunos e2 HRV’s? We have been shut down now for months trying to get sign off on them for 540 sq ft micro-lofts we are building in Halifax (urbanrenewable.com). Locating tangible evidence the units have been installed elsewhere in Canada will establish credibility. We have performed a blower door test and engaged local mechanical engineers to vouch for the equipment based on the data established in the test, however, we are still facing opposition from compliance.
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Replies
Kerry,
What issue do the building inspectors have with the Lunos system? Have you reached out to the Canadian distributor (Ecogenia)? I would imagine they would be able to put you in touch with other customers in Canada.
I have spoken to the people Ecogenia who have been sympathetic but have not provided enough support to alleviate the building inspectors concerns. I have also spoken to 475 in the US. There have been over 1000 units sold across Canada over the last year and the inspector is looking for concrete examples. Unfortunately a stamped letter from the engineer, A4, CSA 22.2 approval is not enough.
Same question as John--what is the concern? Is it that they are unsure that it will be effective to meet a ventilation requirement? Or is it that they have some other concern?
They have recently received CSA 22.2 satisfying the electrical, however, not the CSA 439 which governs the fan and its capacity. The blower door test established the natural infiltration, combined with the fans capacity was sufficient evidence to allow the engineer to endorse its use under an objective based solution based on ASHRAE 62.2. Compliance is requesting a gust flow protector be added to the exterior grill, and without the CSA 439, evidence backing up the data in the companies literature. We have a document showing testing performed in Germany which is similar to the testing for CSA 439, but more stringent. I am now trying to find a translation for that document. The final piece to the puzzle is getting other examples of installations across Canada.
Thanks for the further details. It sounds like you have already done a lot of work and are almost there. The gust protector is not a problem for you to add--you have a reasonably priced product for that?
我希望有人会看到这个例子。It's unfortunate that Ecogenia are not helping you find those examples.