Air handler / fan coil: Marine Air Conditioning Definition
The quiet cabin-side box containing the fan and the cold coil. No compressor inside.
Air handler / fan coil in a Boat Air Conditioning System
What makes splits and chilled-water systems quiet. An air handler is small enough to hide behind a cabin liner where a whole self-contained unit could never fit, and because the noisy part is elsewhere it can sit in a sleeping cabin without being a mistake.
Using Air handler / fan coil Specifications in Quotes and Manuals
Use this definition to understand a quote, manual or fault report—not as an instruction to modify the boat. Before buying, compare the wording against the current manufacturer documentation. For refrigerant, fixed 240 V wiring or below-waterline work, use the official licensing and standards sources and an appropriately qualified tradesperson.
Start with the complete system guide for context, or check the owner questions for plain-language answers. Technical information can change or be wrong; the disclaimer explains the limits.