Dometic Cruisair SMXIRB Controller
The Dometic Cruisair SMXIRB controller is a microprocessor-based keypad/display control system used with marine air conditioning units, particularly for direct expansion (DX) systems by Cruisair and Dometic. It features a smart, compact housing for easy surface-mount installation and includes a large, readable LED display that shows cabin temperature, set points, programming prompts, and fault code warnings. Compatible with legacy A-281, A-282 (SMX Online), and A-288 (SMXII) power/logic boards.
Key Features
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Compatible with SMX II and SMX Net power/logic control boards (legacy A-281, A-282, A-288, U-Board).
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Operates on 100-240VAC/50-60Hz power supply.
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10-button SMX keypad under a decorative hinged door, allowing straightforward, single-keystroke operation.
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Optional infrared remote control for remote adjustments.
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Includes diagnostic tools like fault codes for pressure or voltage issues, and can display inside (and in networked setups, outside) temperature.
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Memory function retains custom settings even if power is lost.
Compatibility
Installation and Use
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Designed for the marine environment with anti-corrosion coated electronics and a sealed keypad.
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Allows for both local and networked control in multi-unit boat setups (with SMX Net).
This controller is favored for its reliability, user-friendly interface, and the ability to integrate with modern and legacy Cruisair/Dometic marine air conditioning systems.
