The Micro-Air ECU Maxx Complete Replacement Control Kit from Nomadic Supply Company® is the definitive solution for restoring your vessel’s direct expansion air conditioning system when the original ECU Maxx controls have failed. Engineered for a straightforward drop-in installation, the Micro-Air ECU Maxx Complete Replacement Control Kit delivers modern control technology with minimal rewiring and maximum reliability.
Marine air conditioning systems depend on dependable control electronics, and when obsolete ECU Maxx boards go out of service, the Micro-Air ECU Maxx Complete Replacement Control Kit steps in with a purpose-built adapter plate, a newly designed FX-2 control board, and an attractive FX-Maxx display to get your cabin cool again. The included 15-foot, eight-conductor display cable provides ample reach for most installations, and buyers needing a custom cable length are encouraged to add a note at the time of ordering.
The Micro-Air ECU Maxx Complete Replacement Control Kit is available in two configurations — one featuring a black FX-Maxx Control Display paired with an EasyStart daughterboard, and another featuring a white FX-Maxx Control Display with a metal enclosure — so owners can select the variant that best matches their vessel’s interior. Both configurations include the same retrofit adapter and 15-foot display cable, ensuring a consistent, clean installation regardless of which version you choose.
Micro-Air ECU Maxx Complete Replacement Control Kit Features:
- FX-2 Control Board: A newly designed control board that serves as the central processing component of the replacement system, providing updated control logic compatible with direct expansion cabin air conditioning installations.
- EasyStart Daughterboard: An add-on board that works in conjunction with the FX-2 Control Board to deliver soft compressor start functionality, reducing the electrical load placed on your vessel’s power supply at startup.
- FX-Maxx Control Display (Black): An attractive black display panel that provides the user interface for the replacement control system, designed to fit cleanly into the existing installation space.
- Retrofit Adapter – ECU-Maxx to FX-2 Control Board: A dedicated adapter plate that allows the new FX-2 Control Board to drop directly into the position previously occupied by the original ECU Maxx control board, simplifying the installation process.
- Cable – Display 8-Conductor (15Ft): A 15-foot, eight-conductor cable that connects the FX-Maxx Control Display to the FX-2 Control Board. Cable length is limited to 15 feet; buyers requiring a special cable length should add a note to their order.
- Metal Enclosure: A metal housing that protects the FX-2 Control Board and associated components, providing a durable and secure fit within the existing electrical box.
- FX-Maxx Control Display (White): An attractive white display panel that serves as the user interface for the replacement control system, offered as an alternative to the black display variant.
- Directly replaces obsolete ECU Maxx controls with a new control system: The Micro-Air ECU Maxx Complete Replacement Control Kit is purpose-built to retire failed or out-of-service ECU Maxx control boards and replace them with a fully functional, modern control system that works in all direct expansion cabin control applications.
- Included EasyStart soft compressor start reduces light flickers and supply loading: By gradually ramping the compressor up to operating speed rather than starting it abruptly, the EasyStart feature minimizes the spike in electrical demand at startup, reducing light flickers and easing the load on your vessel’s power supply.
Micro-Air ECU Maxx Complete Replacement Control Kit Specifications:
- Kit Part Number (Black Display): KIT-360-X03
- Kit Part Number (White Display): KIT-360-X04
- Control Board Assembly: ASY-360-XM5
- Black Display Assembly: ASY-385-X01
- White Display Assembly: ASY-385-X09
- Retrofit Adapter Part Number: ADP-410-X0A
- Display Cable Part Number: SUB-031-X15
- Display Cable Length: 15 feet
- Display Cable Conductors: 8-conductor
- Compatible System Type: DX (direct expansion) cabin control systems








