Where to mount the outdoor unit
Vibration isolation pads and flexible line routing reduce stress at wall penetrations. Every mile of travel shakes connections — strain relief and proper support matter.
- Rear hitch cargo rack: popular on skoolies and fifth-wheels — good airflow, easy service access
- Bumper platform: works on trailers with rated bumpers — watch tongue weight limits
- Roof bracket: saves rear overhang length — adds height and wind load; secure for highway speeds
- Under-skirt enclosed bay: possible on stationary skoolies — ensure airflow clearances per manufacturer
Interior head placement
Mount the head on an interior wall with line set routed through a cabinet or closet to hide the chase. Avoid exterior walls if possible — less thermal bridging and easier insulation patch.
Keep clearance below the head for airflow return. Do not mount over the bed headboard without checking throw direction — cold draft complaints are common with poor placement.
Electrical and legal considerations
This is general DIY planning information. Follow manufacturer instructions, local codes, and refrigerant regulations in your area.
- Dedicated 15–20A circuit from the breaker panel — avoid sharing with microwave on same leg
- Soft-start kits reduce generator surge on startup
- Some states require licensed HVAC for refrigerant work — DIY-friendly kits use pre-charged lines within length limits
- Check campground rules on external mounts and noise
Travel-day checklist
See what size mini-split for RV for BTU planning before choosing mount location — undersized units work harder when condenser airflow is blocked at tight campsites.
- Power off and disconnect shore cord before departure
- Secure condenser with straps rated for highway vibration
- Cap line-set openings if head is removed for service (professional only)
- Check hitch rack weight against RV and rack ratings
- Re-level and test cool mode at each new campsite