Climma M84846 Fan Coil Control Board

Climma M84846 Fan Coil Control PCB

The Climma M84846 is an OEM electronic main control printed circuit board (PCB) engineered by Veco for Climma marine chilled water air conditioning systems. Acting as the primary power and operational logic module for fan coil units (FCUs), the M84846 manages fan speed control, 3-way/2-way water valve actuation, temperature sensing inputs, and network communication with digital cabin control panels (such as the Climma Vega MK3 or C-Set series).

Constructed on a moisture-resistant, tropicalized circuit board designed for marine engine rooms and bilge-adjacent spaces, the M84846 handles high-inrush inductive loads from fan blowers and motorized valves. It operates as the central interface between cabin thermostat commands and the physical cooling/heating components within the fan coil assembly.

Key Features

• Multi-Speed Fan Management: Provides multi-tap relay or triac output outputs for precise 3-speed or variable EC blower speed regulation.

• Motorized Valve Actuation: Direct switched outputs to trigger 230V AC or 24V AC motorized chilled water/hot water valves.

• Digital Display Panel Bus: Dedicated communication port for digital thermostat displays (Vega MK3 / C-Set).

• Conformal Coating: Tropicalized PCB coating protects surface-mount components against marine humidity, salt spray, and condensation.

• On-Board Diagnostics: Integrated micro-relays, terminal block connectors, and LED diagnostic indicators for simplified troubleshooting.

Specifications