The marine multi-split air conditioner is a system consisting of a condensing unit connected to multiple indoor units. The condensing unit utilizes seawater for heat exchange and employs a "coaxial tube" (pure titanium tube) seawater heat exchange.
Compressor Options: Copeland, Hitachi, Sanyo, Panasonic.
Fans for Air Handling Units and Fresh Air Units: EBM
(ebmpapst, German brand, Light fan).
