h****n
发帖数: 131 | 1 是天花板上那种，晚上睡觉的时候，从那个口进凉风。
手拿到空调口，感觉非常凉。
又不能把它关死，因为空调开的时候希望热风能出来。
大家有没有这个问题？
有没有什么好办法?
谢谢 | w********n
发帖数: 137 | 2 it's called back draft
just add a damper somewhere along the duct, it will stop the
air flow when AC or furnace is off.
When AC or furnace is on, the strong air flow will raise
the damper like raising a door.
Kitchen, bathroom all should have something similiar. | h****n
发帖数: 131 | 3 Thanks.
Will check it out.
【在 w********n 的大作中提到】
: it's called back draft
: just add a damper somewhere along the duct, it will stop the
: air flow when AC or furnace is off.
: When AC or furnace is on, the strong air flow will raise
: the damper like raising a door.
: Kitchen, bathroom all should have something similiar.
| j***b
发帖数: 5901 | 4 supply register 应该没有加damper的必要。加damper也是挺麻烦的事情。而且如果back draft也是往屋子里吹的话被动damper根本没用。duct里面加damper一般都是出于zoning需要。
按理说这个是不应该出凉风的。应该看看是不是哪里漏了，堵一堵。
【在 w********n 的大作中提到】
: it's called back draft
: just add a damper somewhere along the duct, it will stop the
: air flow when AC or furnace is off.
: When AC or furnace is on, the strong air flow will raise
: the damper like raising a door.
: Kitchen, bathroom all should have something similiar.
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