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Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Specifications
Place of Origin :
China
Motor Compatibility :
AC/EC systems
Payment Terms :
T/T
Fan Signal Output :
0-10V
Delivery Time :
2-3 weeks
Brand Name :
OEM
Communication Ports :
Dual RS485
Supply Ability :
100000pcs
Protection Circuit :
High/low pressure
MOQ :
500
Relay Outputs :
Multi-channel
Price :
US$25/pcs
Sensor Ports :
NTC, Temperature & Humidity, PM2.5, CO₂
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

Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems

Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems

Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems

Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems

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Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems

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Product Detail
Place of Origin :
China
Motor Compatibility :
AC/EC systems
Payment Terms :
T/T
Fan Signal Output :
0-10V
Delivery Time :
2-3 weeks
Brand Name :
OEM
Contact Supplier
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems
Multi-Channel Relay Output HVAC main control PCB boards with Dual RS485 Communication Ports for AC/EC Fresh Air Systems

Shenzhen Xiangfan Electronics Technology Co., Ltd.

Verified Supplier
1 Years
shenzhen
Since 2010
Business Type :
Manufacturer
Main Products :
Smart HVAC Controller, Digital Ventilation Controller, Ventilation Fan Controller
Total Annual :
$9000000-US$10000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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