Where is the t3 sensor of Midea Air Conditioning Cabinet?
Midea air conditioner has two types: hanging machine and cabinet machine. The temperature sensor of the hanging machine is generally under the filter screen, and the temperature sensor of the conventional cabinet machine is next to the wind wheel of the indoor machine. You can only see it when you open your face.
1. Indoor ambient temperature sensor: mainly detects the indoor ambient temperature and controls the start and stop of the air conditioner.
2. Internal coil sensor: mainly detects the temperature of the internal machine tube, prevents cold air in winter and defrosts the external machine. (Have a plenty of defrosting cream for the external machine tube) In summer, the internal machine is antifreeze.
Extended data:
Functions of air conditioning sensor:
1, throttle position sensor:
Function: The throttle position sensor is used to monitor the throttle opening, determine idle speed, full load, acceleration and deceleration conditions, and execute various fuel injection controls corresponding to the throttle opening state. Fault impact: the idle speed is high and low, or the overspeed phenomenon is caused. ?
2. Intake valve pressure sensor:
Function: The intake pressure sensor provides engine load information, that is, the intake air entering the engine is indirectly measured through the pressure measurement of the intake pipe, and then the intake air is converted into an electrical signal through the internal circuit and provided to the computer. Fault effect: the engine is not easy to start, or the idle speed is unstable. ?
3. Air temperature sensor:
Function: Provide air temperature information to correct fuel injection quantity and ignition timing. Fault effect: low idle speed and easy flameout.
4. Crankshaft angle sensor:
Function: Provide information of speed and crankshaft phase, and provide reference points for fuel injection timing and ignition timing. Fault effect: the engine can't start or the engine suddenly shuts down after starting. ?
5. Coolant temperature sensor:
Function: Monitor the temperature of engine coolant, convert it into voltage signal and send it to computer. ECU controls fuel injection, ignition timing and idle speed control according to this signal. Fault effect: low idle speed. ?
6. Oxygen sensor:
Function: Provide mixer concentration information, correct fuel injection quantity, realize closed-loop control of air-fuel ratio, and ensure that the actual air-fuel ratio of the engine is close to the theoretical air-fuel ratio. Failure impact: unstable idle speed and excessive consumption.
7. Knock sensor:
Function: To provide knock information for correcting ignition timing and realizing knock closed-loop control. Fault influence: When knocking is about to happen, it is impossible to provide the knock signal point, the computer can't receive the signal "peak", and the ignition advance angle can't be reduced, thus knocking occurs. ?
8. Three-way catalytic converter:
Function: The three-way catalytic converter is installed in front of the muffler in the exhaust pipe, which can simultaneously reduce three pollutants in the exhaust gas. When the air-fuel ratio of the engine approaches the theoretical air-fuel ratio, the conversion efficiency of the three-way catalytic converter is the highest. When the high temperature of 300℃ ~ 800℃ passes through the center of the three-way catalyst, the redox reaction attached to the ceramic monomer occurs and is converted into harmless gas. Failure impact: Exhaust gas can't reach the standard.