How to Install an RV Roof Air Conditioner
Step 1: Turn off the Power
Unplug the unit. On the breaker box, flip the corresponding switch to cut the power. This will help to avoid electric shock while working on the air conditioning unit. Electric shock occurs when contact of the body comes into contact with any source of voltage. In 2001, 411 people died from electrocutions. Large appliances accounted for 19 percent of electrocution deaths and 11 percent were from installing household wiring. So take the precaution and turn off the breaker.
Step 2: Location
Determine the best location for your rooftop air conditioner. Pick a spot that is strong enough to support the AC unit. Nothing such as lights in the ceiling should obstruct it. You will need to leave 8 inches between the air conditioner and the edge of the roof.
Step 3: Cut
Now you will want to cut a square in the roof big enough to fit the connections between the ceiling portion of the air conditioning unit and the roof portion of the air conditioning unit. Measure it precisely. This needs to be a snug fit. Mark locations of where the mounting bolts will go as well.
Step 4: Mounting
Over the hole you made, mount the roof portion of the air conditioner. Secure the unit with mounting bolts at the locations you’ve marked. On the interior of the RV, install the bolts that hold the ceiling unit into place. Mount and secure the ceiling unit.
Step 5: Sealant
On the points of the roof where the air conditioner meets the metal apply sealant if you wish. This is for added stability.
Step 6: Wire It on Up
Wire up the ceiling unit to the proper locations. The wires should be coded by color. This allows you to match each one with the corresponding wire. For example, white to white, black to black and so on.
Step 7: Plug I Up
Plug the ceiling unit into the roof unit.
Step 8: Power It Up
Turn the power supply back on the air conditioner.
Step 9: Finishing Up
Turn the air conditioner on.