Non-Ducted 15,000 Btu AC Unit to Replace Coleman Mach AC Unit

Updated 09/03/2019 | Published 09/01/2019

Question:

The ceiling PN 8330-713 Is there a mounting kit to fit the existing whole. Measured opening at about 15 X 15. Would like the wireless setup inside. Non ducted. What all do I need. 2001 ford E450 Thor 28Q

asked by: Bruce

Expert Reply:

The Atwood 15,000 Btu AC units with the heat pumps are actually meant for ducted configurations. Since you're wanting one that is for a non-ducted application you need the Advent Air RV Air Conditioner w/ Air Distribution Box, Start Capacitor, and Heat Strip # ACM150BCH along with the Coleman Mach Adapter Wiring Kit # ACCOLKIT.

This unit, like the other AC units, fits an opening that measures 14-1/4" x 14-1/4" which from the pictures you sent in looks like what you have. This Advent option is actually an upgrade even to the Atwood options because it includes a start capacitor which stores energy and uses it to reduce the amount of power required to start the AC unit.

expert reply by: Jon G