8-Channel Relay Fresh Air Control Board With Dual RS485 Communication

Designed for Customized Fresh Air & HVAC Systems

Our AC/EC Fresh Air Mainboard is a multi-function control platform developed for fresh air ventilation and HVAC equipment. With multi-channel relay outputs, dual RS485 communication interfaces and flexible functional interfaces, the board can be adapted to different system architectures and application requirements.

8-Channel Relay Control
Control multiple external devices through independent relay outputs, including electric heaters, UV lamps, negative ion generators and other auxiliary equipment.

Dual RS485 Communication
Two RS485 interfaces provide flexible communication options for system networking, device control and integration with external controllers.

AC/EC Motor Application
Designed for fresh air ventilation systems using AC or EC motors, supporting customized control solutions according to the equipment architecture.

Flexible Functional Interfaces
Sensor inputs, communication interfaces, control outputs and other functions can be configured according to project requirements.

OEM & ODM Customization
We provide end-to-end mainboard customization, including circuit design, PCB layout, component selection, firmware integration, communication protocols, interface configuration and functional optimization.