RS485 Modbus communication and automatic control equipment for air conditioning

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RS485 Modbus RTU - Automatic Control Equipment for Air Conditioning

last updated：Nov 14, 2023

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It is an automatic control device for air conditioning, such as sensors with communication functions, damper actuators, and valves, which can reduce the labor required for wiring work.

This product has general-purpose RS485 Modbus RTU communication functionality. It can connect sensors, damper actuators, valves, etc., to the controller using a two-core twisted pair cable. 【Features】 - Each product has a power line and communication line that allows for simplified wiring work. - For example, the wiring for sensors and damper actuators inside air conditioning units becomes simpler. - Simplifying the wiring reduces the possibility of connection errors during installation. - No additional input/output expansion units are required on the controller side (it can be completed with just one terminal for communication). - Wireless communication for the communication line is also possible, further simplifying wiring work.

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basic information

Main Products - Indoor temperature (temperature and humidity) sensor - Indoor CO2 sensor - Duct temperature (temperature and humidity) sensor - Duct CO2 sensor - Room unit - Damper actuator - Control valve (electric ball valve) - Accumulated heat meter

Price information

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Applications/Examples of results

It is an automatic control device for air conditioning equipped with general-purpose RS485 Modbus RTU communication functions, allowing sensors, damper actuators, valves, and other components to be connected to the controller using a 2-wire twisted pair cable.

Detailed information

Indoor Temperature Sensor Model: WRF04 Power Supply: DC 24V ±10% Power Consumption: 0.6 VA Measuring Temperature: 0 to 50°C Measurement Accuracy: ±0.5°C or less (at 25°C) Product Weight: 85g
Indoor Temperature and Humidity Sensor Model: LCN-FTW04 Power Supply: DC 24V ±10% Power Consumption: 0.6 VA Measuring Temperature: 0 to 50°C Measuring Humidity: 10 to 90% RH Product Weight: 95g
Indoor CO2 Sensor Model: WRF04 CO2 Power Supply: DC 24V ±10% Power Consumption: 3VA CO2 Concentration Measurement: 0–2000 ppm Measurement Method: Non-dispersive Infrared Absorption (NDIR) Product Weight: 95g
Duct Temperature Sensor Model: AKF10 Power Supply: DC 24V ±10% Power Consumption: 0.7W Measuring Temperature: -20 to +100°C Product Weight: 120g
Duct Temperature and Humidity Sensor Model: FTK... Supply Voltage: DC 24V ±10% Power Consumption: 1.8 VA Measuring Temperature: -20 to +80°C Measuring Humidity: 0 to 100% RH Product Weight: 170g
Room unit Model: Thanos... Indoor temperature display and temperature setting Indoor humidity display and humidity setting Equipment operation stop Others (depending on settings)
Damper Actuator Model: NM24A-MOD Rated Torque 10Nm Model: SM24A-MOD Rated Torque 20Nm Model: GM24A-MOD Rated Torque 40Nm Supply Voltage: DC 24V ±10% / AC 24V ±10% 50/60Hz Operating Time: Approximately 150 seconds / 90° Interface: Modbus RTU (RS485), non-isolated Product Weight: 830–1800g
Control Valve Model: NR24A-MOD Diameter: 15A to 50A