Multi‑Channel Relay Output RS485 HVAC PCB Controller Board
Price:
US$25/pcs
MOQ:
500
Delivery Time:
2-3 weeks
Brand:
OEM
Product Description
Product Overview:
Our HVAC main control PCB boards are developed for fresh air ventilation systems, dehumidifiers, energy recovery ventilators and air handling units. With multi‑channel relay switching outputs, the boards drive compressors, fans, electric heaters, UV sterilizing lamps, ion generators and other actuators. Multiple external sensor ports support NTC, temperature & humidity, PM2.5 and CO₂ monitoring. RS485 communication enables remote monitoring and system linkage.
Built‑in hardware protection circuits include high/low pressure protection for compressor safety. The whole series complies with EMC test standards, multiple dimension options for flexible cabinet installation, ideal for OEM & ODM HVAC equipment manufacturers.
Key Features:
✔ Multi‑channel relay output for compressors, EC fans, electric heaters, UV lamps, ion generators and water valves
✔ Reserved RS485 communication interface for remote control & system interconnection
✔ Multiple external sensor terminals: NTC, Temperature & Humidity, PM2.5, CO₂ sensors supported
✔ Built‑in high / low pressure protection for compressor safe operation
✔ Support 0‑10V fan signal output for EC fan speed regulation
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Xiangfan Electronics Technology Co., Ltd.
Location
Room: 311-313, Building 10, Guanlong Village second industrial park, Xili Street, Nanshan District, Shenzhen.
Contact Person
Elva Zhu