Parts Needed to Install Coleman Mach 3 AC Unit for Ductless Application
Updated 09/12/2025 | Published 08/26/2025
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Question:
Coleman Mach 3 13,500 BTU air conditioner CM37RR 1 states Requires Coleman Distribution box. Which one give me link to add to order please. 2 Requires thermostat. Which ones compatible give me link and numbers that go with install. 3Coleman CMRR $173.62 grill interior is it compatible with this unit? 4 we need to talk Daniel please send email with all the parts required to complete brand new installation. This is going in a custom built travel trailer with 9 foot ceiling height hence no controls are reachable at that height. Unit will ductless go through a 14 1/4” x 14 1/4” opening with a depth of 10 inches is that thickness achievable? Thanks for your valuable time.
asked by: Daniel M
Expert Reply:
Hey Daniel, we actually have a kit that includes the Coleman unit you mentioned with the correct air distribution box for a ductless setup with the part # CM58RR which includes a thermostat as well. I am not sure who Daniel is but you can definitely send him this link and he can comment below if he has any questions!
This could be installed on a 10 inch thick roof but you'd need longer bolts than what comes with this.
Product Page this Question was Asked From
Coleman-Mach Signature Mach 3 RV Air Conditioner - 13,500 Btu - Polished White - AC Unit Only
- RV Air Conditioners
- AC Unit Only
- Cool Only
- 13500 Btu
- 115V
- Single Zone
- Rooftop
- Ducted
- Ductless
- White
- Coleman-Mach
more information >
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Jameson C.
9/12/2025
Hey, did you have a chance to check out the kit with the air distribution box and thermostat for your Coleman unit? I'm curious if it worked out for your custom travel trailer setup. Let me know, as your experience could help others with similar installations!