Are Bypass ducts needs in a Dual Zone System

[Orlanzo]

Hi all,

I'm planning to have a Honeywell dual zone system nstalled in a two- story 2400 sq ft home. Their will be a thermostat on each floor. I've read that a bypass duct isn't required in this type of installation. Is this correct?

I recall seeing an episode of "Ask This Old House" where not having a bypass duct was the cause of some overpresure issues. Unfortunately, I don't recall the size of the home or the number of zones.

Thanking you in advance, Orlanzo

[<kjpro]

So you want us to guess how this system is designed?

[Bubba]

You dont. When the zones start shutting down the ductwork just explodes. Your Welome in advance Bubba

[Tony]

Dual zone "WHAT" heat pump, ac, furnce??????????

[Orlanzo]

AC and Furnance.