3phase roof top unit be most efficient..

来源: 于 2012-08-08 09:40:15 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

3 phase roof top unit be most efficient..

if you put on ground, you will need stretch ducks across 50+ ft....to supplement that, you may need 2 zones, meaning using two 4 ton outdoor condenser and 2 furnace/air handler.