How do you connect power to an RV air conditioner?
Connect the RV air conditioner to a dedicated power circuit that can be shut off and meets local wiring codes. Inside the RV, locate the power cord and connect the active, neutral, and ground wires securely to prevent loose connections or shorts.
Electrical Connections (non-ducted)
The installer is responsible for following all local wiring regulations when connecting the air conditioner to the main power supply.
The unit must be connected to a dedicated circuit that can be isolated and has sufficient electrical capacity for safe operation.
From inside the RV, look upward to locate the air conditioner’s power cord.
Connect the external power lines, making sure to match the active, neutral, and ground terminals correctly.
The A3501 and A3800 models do not include a terminal block, while other models use a 3-pole terminal block as shown in the diagram.
Once all connections are made, tighten the screws firmly to eliminate loose wiring.Improper or unsecured connections can cause overheating, short circuits, or fire.
For the ducted power connection version, see instructions here.
Corky Lorenz
November 6, 2025