Physical chart of air conditioning main panel
The main panel of the air conditioner, which looks at the parts as dense as possible, is in fact a simpler circuit, mainly to transform the current circuit, single-piece machines and various relays。
Main panel circuit map
We're going to use this map to get to know its workflow. When plugged into the power, the pressure is reduced by an industrial frequency transformer, which is then in the form of a bridge, 12v voltage is given to the filter cap, which is used by relays, and 5v voltage is given to circuits such as single-formula machines and sensors, with a linear pressure chip of 7805. (some air-conditioning electric circuits are variable frequency downputs, and the circuits are complex, but efficient) the single machine is powered at the same time as the repositioning circuits allow the single machine to reset (this diagram does not draw the reposition circuits) and the crystallization is activated and the single machine is operational。
That's the repositioning circuit for the single machine. It's important, and it's going to come up later. Once the three key circuits of the single machine are activated, the air conditioner can work。
Air-conditioning panels
The remote control gave the command to turn on and received the message to the 14 foot of the single machine, which, when received, showed the light on the panel。
The single machine then follows the remote control set-up, from 8,9,10,11 feet to high electrical level, to 1,4,5,6 feet of the reverse drive, 11,12,13,16 feet of the reverse drive, low electrical level, and the synchronized air conditioner is electro-started (12v voltage through the wire, two wires of the synchronized generator, two reverse) air conditioner panels are slowly opened (or closed) and can control its angle. The 13 or 12 feet of a single machine output high-altitude at the 2 or 3 feet of an ic3 or 14 or 15 feet at low-altitude, k4 or k5 relay adsorption, internal wind (k4 small wind, k5 strong wind), some air conditioners, internal wind machines are velocityd by two-way controlled silicon, which can be increased at no-grade speed。
Similarly, the high-altitude output of the single machine, at the foot of 4,5,6, to the foot of the reverse drive of ic2, was low at the foot of 10,11,12 on the ic2, and the 12v voltage passed through k1, k2, k3 relays, adsorption, and the l-line voltage went to the outside, respectively, and the compressor, the exterior, the four valves were activated, so that the air conditioner functioned。
If heat is to be produced, there is generally a need to turn on the electric accelerator, which is also controlled by relays (the chart of the circuit is not painted, see the physical chart above)。
If the ac does not react by remote control and can try to start manually or not, it is necessary to check the power circuits, without 12v, complete the current bridge and filtering caps, and if there is 12v, without 5v, check the 7805 steady pressure chip, if there is 5v, check whether the three main elements on the single machine are added to the 5v voltage, whether the crystal-shield circuit is energized, and whether the reverting circuits are normal, and these three aspects are basically clean and then the cause is based on each malfunction。
If not cooled, two temperature sensors can be checked, one pipe temperature sensor, which is attached to the condenser, and one room temperature sensor. They are thermally sensitive resistance to negative temperature coefficients. If it's an external problem, we can check if the relay is damaged (we're here to check the electrical controls, as for example, icy cooling, possibly fluorine deficiency, non-rotation of the outer wind, possibly broken caps, etc., which are not within our scope of discussion), and if not remote control, check the receiver, check if the skin of the triode is damaged。
The main panel of the fm air conditioner and the general air conditioner is similar to that of the main panel, which has an additional communication line, so that the main panel of the internal air conditioner requires a communication circuit, the fixed-frequency air conditioner and the outer panel have five connections, each of which is a fire wire, zero line, four valves, and the outer surface line. The four valve lines are controlled by relays for the firelines, the outer windlines and the four transformer-frequency air conditioners (vacs) have four connective lines, each of which is wire, zero line, communication line, ground line, where the wire is controlled by relays。
