鼓风机和人力资源管理问题
我刚刚在我们的新R-2000版本上进行了鼓风机门测试。房子几乎可以占用了。最初的测试显示约1.3 ach @ 50 pa，但我确定它的测试会更严格。
偷偷摸摸后，我意识到HRV的内部供应和排气扩散器都严重地发生空气。密封外部供应和排气通风口后，ACH降至.8 ACH。为什么会发生这种情况？
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是否安装了单元？如果是这样，听起来像是一件不好的工作，密封管道。
丹，安装了单元。我是木匠，而不是HVAC家伙，但我在用乳胶的管道密封管道时一丝不苟。
again, this was my first test. but when i think about it, what else was supposed to happen? the are basically two 6" diameter holes in the envelope that can't be sealed...? is the hrv supposed to be running when the blower door test takes place?
Erik when running the test the unit is supposed to be off with the dampers closed or sealed off
肖恩，这是一种解脱。不过，这很有趣，因为我问了几个人如何准备BD测试，没有人提到这一点。实际上，进行测试的顾问甚至没有提出测试，他已经进行了1000多次测试。
Right - I read the question too quickly. Also the range hood, dryer vent, etc.
这是通气测试的正确协议吗？
埃里克（Erik），对您正在使用的程序进行测试的协议是什么？对于我所做的事情，密封HRV入口/插座是自动的，但是很难想象有人已经进行了1000多次测试，并且从未见过HRV。他不是不关注，还是应该让他们符合您的计划合规性？
Just for the sake of discussion, the difference between your two tests should be somewhat close to the total size of the supply and exhaust openings for the HRV.
Erik,
For more information on conducting a blower-door test, seeBlower Door Basics。
有关测试Passivhaus协议的信息，请参阅Blower-door protocol for verification of 0.6 ACH50 for Passive House certification。该文件指出：“ HRV系统的排气和供应管道应密封。”
More information here:鼓风机门测试的指南。
Erik:
R-2000程序要求根据CGSB-149.10-M86标准，每个R-2000房屋都经过气密测试。
在CGSB测试下，有意开口密封。
In the case of HRV supply and exhaust ports, the R-2000 tester must either tape off the openings OR, if the HRV has dampers on both supply and exhaust legs, the controls should be all set to off so that the unit is off and dampers closed. Unfortunately, the dampers on many models do not create a perfect airtight seal when closed, and may still leak considerably.
您安装了HRV的什么品牌和型号？
正如您指出的那样，在像您建造的较小房屋上，故意的开放泄漏（IE HRV端口）可能会对ACH结果产生巨大影响。在诸如我居住的寒冷气候下，无障碍的HRV是一个坏主意。
Cheers,
Gio
thanks for the links, martin. the gba has so much good stuff it's sometimes hard to find exactly what you are looking for..
gio, we installed a lifebreath 155ecm. as you know, i need 1.5ach to meet the r2000 target and even with the vents unsealed we got 1.2ach. the official results show that after we sealed the exterior hrv vents, we got .73ach. i still thought this was leaky given the amount of time and energy we put into the air barrier. alas, the major culprit now seems to be air entering the crawlspace from around the 4" waste pipe and the water line. where THAT air is coming from is beyond me. i have read that air can make its way down the outside of the foundation and under the footing and into the house but i just figured this was an myth..
0.73 ...快乐！
不只是快乐 - 很兴奋！（那是一个邪恶的房子！）
Air getting in under the slab really IS an issue, but the penetrations in the floor tend to be few. Slabs are typically poured over a very air-permeable layer of clean stone for moisture control. Even clay soils are somewhat air-permeable, and you're dealing with a very large surface area, so yeah, air even moves in soil when you give it 50 pascals of pressure differential.
C上gratulations on the great air tightness results. With respect to where the air coming in around your slab penetrations is coming from, I'd be more concerned with what it contains. Soil gases coming up from under your slab can contain radon. Beyond energy efficiency, and comfort reasons for the sake of indoor air quality and occupant health it makes sense to take the time to seal these penetrations thoroughly, especially if you are in an area with above normal radon concentrations.
Gio
gio, do you know if the r2000 program requires you to balance the 'cold' side of the system?