Custom HVAC Control Board With External Sensors High Low Voltage Protection And Multi-Channel Relays

This customized HVAC control board is designed for fresh air ventilation, air treatment, and indoor environmental control systems. Measuring approximately 180 × 120 mm, it integrates multiple relay outputs, external sensor interfaces, and protection functions into a compact and flexible control platform.

The board supports connection to external temperature and environmental sensors and provides multiple relay outputs for controlling devices such as humidifiers, air dampers, UV sterilization lamps, and other HVAC accessories. Built-in high- and low-voltage protection helps enhance system safety and reliability.

With a flexible hardware architecture, the board can be customized according to different equipment requirements, including I/O configuration, relay functions, sensor interfaces, communication features, control logic, and PCB design.

• External Sensor Interfaces — Supports external temperature and other environmental sensor connections.
• Multi-Channel Relay Outputs — Enables independent control of multiple HVAC and ventilation components.
• High and Low Voltage Protection — Integrated protection functions help improve system safety and operational reliability.
• Humidifier Control — Suitable for customized humidification system applications.
• Air Damper Control — Supports air damper and ventilation airflow management.
• UV Sterilization Lamp Support — Relay outputs can be configured for UV sterilization or other auxiliary devices.
• Flexible Control Architecture — Designed for customized HVAC systems requiring multiple inputs and outputs.
• OEM/ODM Development — Supports custom hardware functions, PCB layout, interfaces, control logic and communication features.
• Application Flexibility — Suitable for fresh air systems, ventilation equipment, air treatment systems and customized HVAC products.