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Modern Hotel Room

RS-485 FCU + Integrated ERV Control Board

Advanced Comfort Control. Integrated Ventilation. Intelligent Communication.

Intelligent Control for Connected HVAC Systems

The Omachron® Controls RS-485 FCU + Integrated ERV Control Board combines advanced fan coil control with integrated Energy Recovery Ventilator (ERV) functionality on a single digital communication platform. Built around RS-485 communications, it enables intelligent interaction between the wall controller, fan coil unit, and ventilation equipment while reducing integration complexity for manufacturers.

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A Complete Platform for Modern Building Systems

Supporting heating and cooling operation, fresh air management, power failure recovery, and flexible equipment integration, the RS-485 FCU + Integrated ERV Control Board provides a modern solution for hospitality, multi-unit residential, commercial, healthcare, and institutional HVAC applications.

Control

RS-485 Serial 9600 Baud

Analog Inputs

Room Temperature 10k Thermistor

ERV Fresh Air Temperature 10k Thermistor

Auxiliary Temperature Input 1 (Future Freeze)

Auxiliary Temperature Input 2 (Future Supply Temperature)

Digital Inputs

Flood

Float

Low Voltage Timer

Freeze

Aquastat

Auxiliary Input

Analog Outputs

ERV Fresh-air Fan (0-10VDC)

ERV Stale-air Fan (0-10VDC)

ECM Control (0-10VDC)

6-Way Valve Control (0-10VDC)

Digital Outputs

W/Y Valve

Y Valve

E-Heat

Damper

Fan High

Fan Medium

Fan Low

Fan Ultra-Low

Certifications

UL 94V-0 Flame Retardant Certified

Designed for Manufacturers. Built for Reliability.

The Omachron® Controls RS-485 FCU Control Board combines proven thermostat compatibility with flexible control capabilities, giving OEMs a reliable platform that supports diverse project requirements and long-term system performance.

Integrated ERV Management

Provides control of both fan coil operation and Energy Recovery Ventilator equipment from a single platform, simplifying system design while supporting improved indoor air quality.

Power Failure Recovery

Automatically restores previous operating settings following power interruptions, helping maintain occupant comfort and reducing disruption in occupied spaces.

Intelligent Communications

RS-485 communications enable enhanced functionality, flexible operating sequences, and seamless interaction between equipment and room controls.

Advanced Ventilation Control

Supports multi-speed fan operation, ventilation management, valve control, and accessory integration to accommodate a wide range of HVAC system designs

Have Questions About The RS-485 FCU + Integrated ERV Control Board?

Selecting the right control platform is critical to equipment performance, reliability, and long-term serviceability. Whether you're developing new HVAC equipment, exploring replacement options, or assessing compatibility with a specific application, our team is here to help. Submit your project details below and we'll work with you to identify the best Omachron® control solution for your requirements

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