
7-Wire FCU + Integrated ERV Control Board
Integrated Comfort Control. Fresh Air Management. Proven Reliability.
Comfort & Ventilation Control on a Single Platform
The Omachron® Controls 7-Wire FCU + Integrated ERV Control Board combines fan coil control and energy recovery ventilation management on a single platform, providing manufacturers with a practical solution for applications that require both occupant comfort and controlled fresh air delivery. Built around conventional 24VAC 7-wire architecture, it delivers the reliability, familiarity, and serviceability HVAC professionals depend on while supporting modern indoor air quality requirements

Reducing Complexity Through Integration
Supporting four-speed fan operation, heating and cooling control, fresh air management, ECM motor control, 6-way valve integration, dedicated ventilation outputs, and comprehensive equipment protection functions, the 7-Wire FCU + Integrated ERV Control Board is well suited for residential, healthcare, and education-focused HVAC applications.
Control
Conventional parallel using 7-Wire 24VAC
Analog Inputs
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 7-Wire FCU + Integrated ERV combines proven thermostat compatibility with advanced ventilation and hydronic control capabilities, delivering a dependable platform for OEMs developing next-generation fan coil systems.
Integrated ERV & Ventilation Management
Dedicated 0-10VDC outputs support both fresh-air and stale-air ventilation fans, while integrated damper control helps coordinate airflow management. Additional temperature sensing capabilities enable more intelligent ventilation operation and improved indoor air quality performance.
EC Motor & 6-Way Valve Compatibility
Integrated 0-10VDC outputs provide direct support for ECM blower motors and 6-way valves, enabling precise airflow and hydronic control. Manufacturers can support modern HVAC system architectures without requiring additional control hardware.
Expanded Temperature Monitoring
In addition to ERV fresh-air temperature sensing, the board supports auxiliary temperature inputs for future freeze protection and supply air monitoring applications. These capabilities provide greater flexibility for evolving equipment designs and operating sequences.
Comprehensive Equipment Protection
Integrated flood detection, float monitoring, freeze protection, aquastat functionality, low-voltage timer inputs, and auxiliary safety monitoring help protect equipment and support dependable operation throughout the life of the system.
Trusted for Fan Coil Applications
Have Questions About The 7-Wire FCU + Integrated ERV Control Board?
Selecting the right control platform is critical to equipment performance, ventilation effectiveness, and long-term serviceability. Whether you're developing new HVAC equipment, integrating energy recovery ventilation into a fan coil platform, or evaluating control options for 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® Controls 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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