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by gunnhvac
Tue Aug 18, 2015 9:16 am
Forum: Help and Advice
Topic: Back up system
Replies: 0
Views: 4290

Back up system

I am working on a project that will have a 5 ton heat pump system with 5 to 6 zones on it. The costumer would like to have a 2nd 5 ton system installed and connected to the same duct system as a back up. I know I can connect them together as far as the duct work goes by using back draft dampers. How...