air conditioning control system
- product brand:HANDI
- رقم الكشك：B1A88
- product specification:
- product category:Miscellaneous-Wholesalers-
- product introduction:Air conditioning control board (also called air conditioning motherboard, main control board and computer board) is the core brain of air conditioning, which is responsible for receiving instructions, detecting status and driving the whole machine to run.
I. Main components
Main control chip: processing logic, calculation and control program.
Power supply circuit: convert the commercial power into low-voltage DC to supply power to chips, sensors and relays.
Driving circuit: driving compressor, internal and external fans, four-way valve, stepping motor, etc.
Detection circuit:
Temperature detection (room temperature, pipe temperature, exhaust temperature)
Voltage/current detection
Fault protection detection
Communication interface:
Receiving infrared remote control signal
Communication between internal and external computers
Some support WiFi/Bluetooth module.
2, the core functions
Command execution: in response to remote control, switch cooling, heating, dehumidification, air supply and automatic modes.
Temperature control: collect temperature in real time, automatically adjust compressor frequency/start/stop, and stabilize room temperature.
Protection function:
Over-current, over-voltage and under-voltage protection
High temperature protection of compressor and exhaust gas
Anti-freezing and anti-overload protection
Fault self-diagnosis: Stop the machine and display the fault code in case of abnormality.
Intelligent control: timing, sleep mode, energy saving, self-cleaning, WiFi remote control, etc.
3, classification
Indoor unit control panel: responsible for remote control reception, display, internal fan and temperature collection.
Outdoor control panel: responsible for the control of compressor, frequency conversion drive, external fan and four-way valve.
Frequency conversion board/drive board: special for frequency conversion air conditioner, which converts alternating current into frequency conversion electricity and controls the speed of compressor.
4. Features and Functions
It is the core of the reliable operation of air conditioning, and the failure rate is relatively high.
The programs of different brands and models are not universal and cannot be exchanged at will.
The model, power and frequency conversion/fixed frequency type shall be matched during maintenance/replacement.
