化妆空气战略
We are in Minnesota (Zone 6a). 2200 sq/ft single level, slab on grade. We have a heat pump (no central ducted system) and an HRV.
我的HVAC承包商和我错过/忘了规划弥补空气的策略。即使我提交了表501.3.1为我的建筑许可证并确定了我需要一个4英寸的无源管道，请使用300 CFM系列引擎盖风扇39 CFM化妆空气，我们刚刚忘了这一要求。
I have read
//m.etiketa4.com/article/passive-air-inlets-usually-dont-work但我还没有执行鼓风机门测试。我希望我有一个非常紧凑的房子。也许我应该在做出决定之前完成测试？
I would like to put a simple duct with a damper through the wall behind the slide in style 30″ gas range, am concerned that using a spring loaded damper or a cape hood damper will not be reliable long term. Is this concern founded?
机动阻尼器似乎更加可靠，但我不会在范围内完成房间，所以我必须将它安装在阁楼，与引擎盖联锁，并使弥补空气遍布厨房天花板。此外，我没有找到4英寸电动阻尼器......最6“+。我应该去哪条路线的任何建议？我可以做一个循环的粉丝并消除全部的问题，但我更愿意有一些通风。
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Replies
斯科特，
I advise you to read this article:“化妆罩的空气。”
Building codes only require makeup air systems for range hoods rated at 400 cfm or more, so your 300-cfm range hood sneaks in under the wire. How you proceed depends upon your flexibility, how your family uses the range hood fan, and whether or not your house has any atmospherically vented combustion appliances (for example, an atmospherically vented gas water heater).
如果你很少将一个局部发动机罩扇子变成“高”，你可能没事。在罕见的时候，你将粉丝设置为“高”，你可以破解附近的窗户。
如果此方法不适用于您的家庭，可以考虑安装化妆系统。
谢谢马丁，是的，我也读了那篇文章。
Unfortunately the energy code in MN, for new construction, says differently, or at least my inspector says differently. To quote him "You need to provide make up air for all exhausted appliances. If range hood exhausts over 400cfm it needs to be interlocked with make-up air unit(device) and air needs to be tempered."
对于那些我们需要单位的时间来说，我很开心一个窗户，但我认为我的检查员不会发现可以接受。基于表501.3.1我在这里发布的501.4.2附近，我需要提供4“被动构成空气管道。如果您有一些建议，我很想知道它
Although I prefer the idea of placing it behind the range, I realized that the intake would be too close to the ground. I don't know if there is a code that says how far off grade, but common sense in MN says don't put it 2' above grade. I am thinking high on the wall in the laundry room would be a decent location, other wise I'm looking at another penetration in the roof and I don't like doing that unless I really have too. The dryer vent is nearby though.
但是，我仍然关注可被动系统中可用阻尼器的可靠性，但我不知道是否建立了这个问题。机动阻尼器会更有意义，更可靠吗？我认为电动单元也不会允许空气吹风时，烘干机正在运行或浴缸打开时。
That table is a disgrace. Very hard to understand. I like how they force you to put a 3" hole in your house in order to provide 1cfm of makeup air. Makes perfect sense.
您有几个选项可满足零化妆空气的要求。
1. Replace your dryer with a heat pump dryer, reducing your total exhaust capacity to 240. Bonus is pretty big energy savings on the the dryer operation.
2.安装在250cfm或更小的范围内的范围罩。这将使你的总容量带到335。
同意。但在这里我。在我更换烘干机之前，我将搭配再循环罩。
我踢过的东西，但从未完成过的是使用电动窗口开瓶器进行被动通风。它们有雨传感器和其他传感器的互锁，可能不会难以将互锁互锁与您的范围罩相连，导致窗口打开窗口打开。似乎是一种简单的方法来提供自动的被动化妆空气，允许它在关闭时非常紧密关闭。
I like the motorized window idea. I don't see anything available for my Anderson 100 series casements.
如何在我的空气交换系统的新鲜进气口上发触管道（从拱腹的通风口拉动）和新的空气供应管道（在4个热泵头前面倾倒到4个漫射器）？在理论上，在介于两者之间，它不应该影响系统的平衡。至少不再是，如果它只是直接穿过墙壁，对吧？
Aircycler制作您正在寻找的内容。它们有4“电动阻尼器和压力开关，当您打开闸门罩排气扇时会打开阻尼器。这是他们网站和该产品的链接。
https://www.aircycler.com/collections/shop/products/rangerelief?variant=1055170256.