
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.

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
Trusted for Fan Coil Applications
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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CONTACT
905-263-2805
ADDRESS
P.O Box 130,
Hampton, Ontario, L0B 1J0, Canada
POLICIES
© 2026 by Omachron Controls Inc.
The Omachron® logo and wordmark are trademarks of Omachron® Intellectual Property Inc. used under license.
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