Reviewer Profile
Tested Performance
Visual Highlights
Cooling Performance: Air was already down to 16°C at startup, and the later check reached 54°F with more than a 20°F split.(19:43)
Noise Level: With the doors closed, the rooftop unit was quiet enough that they forgot the sound test was still happening.(20:32)
12V Direct Power: The unit ran directly from the trailer's 12 V electrical system, so the inverter did not need to run the AC.(21:01)
Vacuum Test: The Testo 557 gauge shows a vacuum reading around 435 microns, matching Frank’s under-500-micron startup check.(19:05)
Recommendation: The family finished the startup thrilled with the cold air, quiet operation and direct 12 V setup.
Detailed Analysis
A Hot Night Changed What This Trailer Needed
Air conditioning had never been essential on their earlier rigs. Good airflow had been enough when the adults were traveling on their own. That changed after spending a night inside this travel trailer with no fans, ventilation or meaningful air movement. The interior became extremely hot.
Keeping their young child comfortable made cooling much more important on this build. The AC was no longer simply an extra luxury. It became one of the components they were most excited to add before taking the trailer on the road.
A Compact Condenser Fit Around the Existing Solar Layout
Finding the right mounting location took some thought. A side-mounted position would have exposed the fan to highway airflow, while the available space underneath the trailer offered only about four inches of clearance. The roof gave them the better option.
The OutEquipPro 12V AC condenser was only 16 inches wide, allowing it to fit between the existing solar panels. After adding vibration isolators, the total roof height remained under 9 ft 4 in, about the same height as the existing roof vent when fully open.
They built a dedicated aluminum mounting frame and secured it with blind rivets. The approximately 50 lb unit then sat on the new structure without taking away the roof space already being used by the solar system.
The Refrigerant-Side Installation Benefited From HVAC Experience
This was not presented as a completely tool-free DIY installation. One member of the build team had previously worked as an HVAC technician, which was especially useful for connecting the refrigerant lines and pulling a vacuum before startup.
The system reached 470 microns during evacuation, and they treated anything below 500 microns as ready to proceed. Once the lines were opened, they temporarily connected the electrical side and started the unit.
They were also clear about the practical boundary: someone with the right skills and tools could take on this part of the installation, while someone without that experience would be better served having a qualified person finish the refrigerant-side setup.
The First Startup Was Cold and Surprisingly Quiet
The cooling response was immediate. During the first startup, they measured 16°C air and could already feel the trailer getting cooler. A later check showed 54°F, which they identified as more than a 20°F temperature split.
The sound test was just as encouraging. They closed the doors specifically to listen for the rooftop unit and then realized they could no longer hear it. The sound faded into the background so completely that the test itself was briefly forgotten.
By the end of the startup, the initial doubts about whether such a small condenser could cool the trailer were gone. The air was cold, the unit was quiet, and the family was thrilled with how it was working.
Direct 12V Power Fits the Way This Trailer Is Being Built
The electrical side was another important part of the appeal. The AC connected directly to the trailer's 12 V battery bank, so it did not need the inverter to run. Its stated maximum draw was 1,200 W.
Their trailer already had solar on the roof and could also be plugged in. They expected that combination to support extensive AC use during summer travel, although the video did not include a full battery-runtime test.
For this build, the first test solved the immediate problem that had made the previous overnight stay so uncomfortable. The trailer now had strong cold air without a loud rooftop presence, while the compact condenser fit around the solar equipment already in place.
