Signature Series low-profile rooftop AC — 13,500 BTU, textured white finish, ducted & non-ducted compatible. Just over 11" tall — built for fifth wheels and taller RVs where rooftop clearance matters. Raised lance fin coils, 320 CFM.
The Coleman Mach 10 35203-0762 brings the proven performance of the Signature Series into a low-profile package that stands just over 11 inches tall — roughly two inches shorter than a standard medium-profile unit. That height reduction makes a real difference for fifth wheels, Class A motorhomes with slide toppers, and any RV where ground clearance under bridges, awnings, or covered storage structures is a concern. It delivers the same 13,500 BTU cooling output and 320 CFM airflow as its medium-profile counterparts, with no performance compromise for the lower roofline.
The textured white exterior shroud blends cleanly with white-roofed RVs and resists UV yellowing and surface wear through years of road exposure. Large evaporator and condenser coils with raised lance fins maximize heat dissipation, while all-copper tubing with gas-flux brazed joints ensures long-term refrigerant integrity in the demanding thermal and vibration environment of a moving RV. A pre-installed roof compression gasket on the unit base simplifies installation and ensures a weather-tight roof seal from the start.
Two inches shorter than medium-profile units — the right choice for fifth wheels and RVs where rooftop height clearance is a factor
Oversized evaporator and condenser coils with raised lance fin geometry maximize heat transfer for reliable cooling in extreme heat and humidity
High-volume air delivery maintains even, consistent temperatures throughout the RV interior across all blower speeds
Compatible with both ducted ChillGrille and non-ducted free delivery ceiling assemblies — fits a wide range of existing RV configurations
If you are switching from a different brand of rooftop air conditioner or performing a first-time installation, a Coleman Mach ceiling assembly is required and sold separately. For this Low Profile (35xxx) unit, use a compatible Coleman Mach 35xxx / 45xxx Low Profile ceiling assembly. The ceiling assembly provides the interior grille, air distribution, return air path, and wiring connections necessary to complete the system. Verify ceiling assembly compatibility before ordering if replacing an existing Coleman Mach unit.
The Mach 10 35203-0762 is heat-ready. Pair it with the Coleman Mach Electric Heat Kit (part 38203-4551, sold separately) to add 5,600 BTU of electric heat for cool-weather camping — without relying solely on your RV's propane furnace. The heat kit is compatible with both medium and low profile (38xxx and 35xxx) units. It installs into the ceiling assembly and connects to the existing wiring harness. Confirm ceiling assembly heat-readiness before ordering.
Note: Electrical amp and watt specifications (cooling amps, locked rotor amps, running watts) should be confirmed from the unit's nameplate or data sheet. The Coleman Mach Mach 10 line includes multiple electrical variants at this BTU level; verify against your specific unit's documentation before sizing wiring or generator capacity.
Before Installing: 1. Verify Roof Opening: Confirm a standard 14" × 14" vent cutout is present 2. Ceiling Assembly: For brand switches or new installs, order a compatible Coleman Mach Low Profile ceiling assembly separately before beginning work 3. Prepare the Roof: Remove old unit, clean the opening, and inspect roof deck for soft spots or damage 4. Position Unit: The pre-installed compression gasket on the unit base creates the weather seal — lower the unit over the opening from above 5. Secure & Seal: Fasten mounting bolts through the ceiling assembly from inside; apply RV roof sealant around the perimeter as directed 6. Connect Wiring: Complete all electrical connections per the wiring diagram in the included installation manual 7. Test: Restore power and verify operation at all blower speeds Professional installation is recommended. Always disconnect shore power before beginning work.
In the Box: • Mach 10 Rooftop AC Unit (35203-0762) • Pre-Installed Roof Compression Gasket • Mounting Hardware • Installation Manual • Warranty Documentation NOT Included — Must Purchase Separately: • Coleman Mach Low Profile Ceiling Assembly (required for brand switches or new installs) • Electric Heat Kit — part 38203-4551 (optional, 5,600 BTU) • Thermostat / Wall Control (if not already installed) • RV Roof Sealant
Coleman Mach Document Library: Installation manuals, wiring diagrams, parts lists, and spec sheets available at coleman-mach.com/document-library Technical Support: Coleman Mach / Airxcel Customer Service available through your authorized Coleman Mach dealer or service center Dealer & Service Center Locator: Use the Service Locator at coleman-mach.com to find the nearest authorized dealer or service center Warranty Information: 2-Year Limited Manufacturer's Warranty covering defects in materials and workmanship under normal use conditions. Extended warranty registration available at warranty.coleman-mach.com Note on Part Numbers: Part number 35203-0762 is the current active manufacturer number for this unit. It supersedes legacy part number 45203-0762. Both numbers refer to the same product. Verify current availability and supersession status with your dealer prior to ordering.