Return Air Installation Return Air Installation

Installation Fundamentals Check the electrical service Room by room load calculation Select a matched system Design the distribution system Physical installation of the system Commissioning the system

Where to Place the Return? Central Location – Out of Direct Living Area

Air Handler Location ESP-3642

Flexible Return Duct (90° bend) Return Air Box Platform & Drain Pan 48” MIN. (6’ of duct) 96” MAX. (10’ of duct) copyright Mestek, Inc Typical Attic Installation Up to 20’ or 0.25” W.C.

Protect your customers home copyright Mestek, Inc. 2004

Center the opening in the hallway

Drill pilot hole

Lay out return opening

Cut the hole

Remove framing only when necessary

Split Return Improves return air access Where rooms are decoupled from return 0.25” W.C. for entire return & filter Typically uses site-built mixing box

copyright Mestek, Inc Make-Up Air