Direct-expansion split systems have the condensing unit and air handler installed in different locations.
- The condensing unit is mounted in the engine room or other mechanical space.
- The air handler (also called the evaporator) is installed in the living area. Two air handlers can connect to one condensing unit.
Click for Illustration of Split System
Split systems are found on boats up to 80 feet (24m), limited only by the number of condensing units that will fit and by the 50-foot (15m) maximum length of copper tubing between the condensing unit and air handler.
Split system advantages:
- Less space needed in the living area for the air handlers.
- Quieter because the compressor is in the engine room.
- A wide selection of air handler types.