I, ii, ii, ii, cacs, ii, ii, cacs, ii, cacs, iii, hacs, and hacs, ctps, rtps, rtps, rtps, rtps, rtds, iacs, ii, racs, racs, racs, racs, rems, rems, rems, rems, hvps, hvps, hvps, hvps, hacs, iiRefrigerated heatIt works. Teaching content: 1, the working principles of cold wind-type split air conditioners; 2, the working principles of electro-heat-type split air conditioners; 3, the working principles of heat pumps
2. The rationale of the device. The purpose of the two-purpose cold wind-type electro-heat-type heat-pump cold-heat-pump 1 heat-pump-type heat 2 requires the effect of one four-way valves for each component: to change the movement of refrigerants; when cooled, high-temperature, high-pressure refrigerants flow to outdoor heat exchangers; and when heat is prepared, high-temperature, high-pressure refrigerants flow to indoor heat exchangers. 2: compressors: compressing cryogenic low pressure refrigerants into high temperature high pressure refrigerants. 3: gas separators: storage of excess liquid refrigerants in the vapour separators for the time being, after a period of evaporation, before inhalation compressors. 4: filters: leach impurities from refrigerants while absorbing water from refrigerants. 5: outdoor heat exchangers: heat is released to the outside while cooling, heat is absorbed to the outside at heat preparation 6: indoor heat exchangers: heat is absorbed to the room when cooling, heat is released to the room at heat preparation 7: air-conditioning valves: air conditioners are used to stop or close the movement of outdoor and outdoor refrigerants and air conditioners
3 mover 8: cortex: fluctuation-relief, gas-segregator, inter-ductive inter-ductive pneumatic pneumatic pneumatic pneumatic pneumatic plume outside the pneumatic piping tube outside the plume-pneumatic pneumatic pneumatic plume of the pneumatic pneumatic plume of the pyro-repressor compressor interior piping tube (i) refrigeration working principle 1 and cooling (single cold) (single cold) walling of cooling air conditionersDivision air conditioningRefrigeration principles () modification principles: (i) system composition: refrigerants are compressed into high temperature high vapour refrigerant cooling into normal temperature high voltage liquids for dry filtering of refrigerants and pressure-relief treatment of refrigerants into low temperature low pressure liquid dyslexeal valves (evaporationers) for interior heat exchangers (evaporationers) for corroded tube dryers (condensers) for the liquid refrigerant compressor evaporation into low temperature low vapour high pressure valve compressors, outdoor heat exchangers (condensors), dry filters, catheters, indoor heat exchangers (evaperators), high pressure valves and low pressure valves。
4. Catalogue cold wind electric heat pump type cold heat pump type 1 heat pump type 2 requires () thermal work method: selecting to cut the refrigerated compression motor power source, connect to the electrothermal heating circuit, and make the heat from the electrothermal tubes. 2. Composition of the system for the cooling of electric thermal air conditioners () the working method of the dry filter () of the internal aircrew intercombine cavity cavity cavity cavity cavity cavity tube cavity tube cavity unit external to the heat exchanger low pressure valve condenser composter dryer: the refrigerant is compressed into the high-temperature high-voltage vapour refrigerant cooling into thermal heating of the constant temperature high pressure liquid for the refrigerant dry filtration treatment of the low-pressure valve conservator interior to the low-temperature low-pressure liquid thermal air-conditioning condensor (evaporation condenser) to the liquid refrigerant evapoly to the low-temperature low-pressure high pressure valve condens to the low temperature low-voltation liquid thermal air-conditioning diagram and thermal tube. Devices, fluids
The purpose of 5, ion, pipe compressor, outdoor heat exchanger (condensor), dry filter, cavity tube (evaporation), high pressure valve, low pressure valve, interior heat-replaced heat-resilver catalogue, cold heat-resilient heat-resilient, heat-pump, heat-resilient, heat-resilient, heat-resilient, heat-resilient air conditioner, is to require that the exhaust-pipe piping tube enters the gas tube, and that the heat-refrigeration air-conditioning unit of the indoor chamber chamber of the high-pressure-pressure pressure valve interior of the high-pressure-pressure fluid-barres, chamber-resilver of the chamber compressor, self-resilient decompressor, low-voltage voltage voltage voltage voltage iv
6. Valves, outdoor heat exchangers, dry filters, main catheters, indoor heat exchangers, gas separators, pipe links, high, low pressure valves, auxiliary catheters, dry filters. One-way valves, piped high pressure valves, dry filtering of refrigerant relief to low-temperature low-pressure liquids, single-way dry valve 2 catalogue cold wind heat pump type heat pump 1 heat pump type 1 heat pump type 2 one-way valves, heat-pump wall-based air-conditioning thermometers to support the cavity pipe exhaust tube process into the chamber chamber chamber of the crew of the high-pressure valves and the main condenser tube dryer filter 1 compressor chamber heat exchanger separator single-way dry filter
7 and 2 valves (2) thermal cooler, heater, heater, heater, heater, heater, heater, heater, heater, heater, heater, heater, heater for 2 purposes (3) the heater works: refrigerants are compressed into high-temperature high-voltage vapour refrigerant cooling heating into the normal high-voltage liquid chamber exchanger (evaper), dry filter 1 indoor respirator (condensor) liquid refrigerant evaporation to low-temperature low-voltage vapour 4-barrel and magnetic 4th-barrel-barrelled aqueal pneumatic pneumatic pnes, self-resistor, and dry filters thermal pressure-resilver-resilver-resilient tube dry-resilient
When the cooler air conditioner interior air conditioner (physical) 2-heated air conditioner units of the chiller air conditioner air conditioner air conditioner (physical) is cooled, the compressor compresses the refrigerant into a single-way condenser of the valve condenser, and then removes the excess vapour from the exhaust of the compressor, and then enters the electromagnetic four-way to the valve to switch the vapour to the valve to the valve four-way to the valve to cool the chiller vapour from the wind in the condenser, and the wind fans blow out the hot wind-flowing wind and the liquid following the dry air-creaming, dry filter, catheter into the steamer liquids causes the gas to be pumped in the steamer, so that the air temperature can be blown out of the cooling wind around the valve and sent back to the pressurer, so that the cooling wheel is maintained:
9. When heat is prepared using the heat principle of 3-heating air conditioners, the compressor compresses compresses the refrigerants to heat up into the vents directly into the compressor by the four-way valve, the original evaporation is converted to the condenser's vapours to heat out condensed in the condenser, the refrigerants around the condenser are pumped by the fan into a one-way valve, the dry filter, the catheter liquid refrigerants reach the outdoor vapours in the vapours, and the air around them is returned to the compressor via the four-way valves, so as to maintain the heat cycle 4 and the refrigerant gas imported by the compressor into the condensor's condensor 'sortor 's, the coolant gases are compressed by the compressor into the high-pressure high-temper temperature superheated vapour, and the coolant gas is returned to the compressor's convulsor to the compressor's convulsor by a single-cing-cing-c medium
10 after condensing, following the evaporation of the liquid refrigerant from the one-way valve, the cavity tube, the liquid refrigerant from the liquid terminal valve into the evaporation unit of the indoor evaporation unit, and the single-way liquid stop-valve refrigerant from the liquid valve into the indoor evaporation unit of the indoor evaporation unit, from the liquid terminal valve into the dry filter 7. The single-way liquid end-valve refrigerant to the outer room returns to the graph magnetic iv to the valve liquid, and from the gas cut-off valve back to the micro-compression switch on the control circuit control panel of the electrical circuit 23 system (emergency run-off) 24-room temperature sensor and its installed position to connect to the temperature vent 26-line winder and its location 27-point-to-heat-to-to-heating air-conditioning tube 28-way sub-pipe sub-pipe 28-pipe controlled signal control system (emergency rungear)
11, basic structure of the outer room machine, 29-room trunking air conditioner, 30-door trunk connector, 30-door end-of-pipe liquid valve connection, low-pressure valve connection, 31-minute internal structure condenser condensor condensing unit of the external air conditioner unit, prompting internal structure condensing unit of the condensed condenser, 4x4 switch to the dry-winder filter of the valve, 3x2 dry-window air conditioning box, 3x30 activated capacitors compressor compressor in the off-room, should be shut down for a period of time in order to maintain the common failure of the new air-conditioning system and the method of repairing it in the outer room
12. The main signs of recruitment are non-refrigeration, inadequate refrigeration, non-functioning compressors, sudden shutdowns, windlessness, control failures, etc. However, in order to determine the location, nature and severity of the malfunction, it will be subject to inspection, analysis and experimentation to reach a final conclusion. ... The method of checking the malfunctions generally refers to the faults of the air conditioners as “false malfunctions” of the refrigeration system, which are not properly used or are mistakenly assumed by the users. The following are the common “false failures” of air conditioners: (1) inadequate cooling (thermal) of air conditioners when air filters are too dusty, and indoor and outdoor heat exchangers are overstretched and blocked; higher temperatures set during cooling lead to shorter working hours for compressors, resulting in lower average cooling of air conditioners; lower temperatures set during heat preparation, resulting in shorter working hours for compressors, resulting in lower average heat preparation of air conditioners; and higher outdoor temperatures during refrigeration, resulting in lower energy efficiency of air conditioners than their production
There will also be a decrease in cooling volumes; lower energy efficiency ratio of air conditioners during heat production, followed by lower heat pumps; poor sealing of air-conditioning rooms, large gaps in doors and windows or frequent openings will result in a loss of indoor cooling (heat) volumes; and excessive heat loads of air-conditioning rooms, such as large power appliances in air-conditioning rooms and excessive indoor personnel, will create a feeling that air-conditioning units are under-refrigerated (heat). (2) when air conditioners work, they sometimes smell a strange smell when they start to operate, which is the result of the smoke, food, cosmetics and furniture, carpets, walls, etc., being attached to the machine. Therefore, clean-up work in and out of the air conditioners must be done before the air conditioners are ready for commission every year and the filters should be regularly cleaned during their operation. Non-smoking in air-conditioning rooms should normally be avoided and windows should be open and ventilated when empty. (3) frequent shutdown of compressors of refrigeration systems while air conditioners are working
The high temperature set at 14 hours or the low temperature set at the time of heat preparation cause the compressor of the refrigeration system to be frequently operated and shut down while the air conditioner works. At this point, if the temperature set for cooling is lowered, or the temperature set for heating is raised, the number of compressors opened and stopped will decrease. General examination and analysis of the failure of the air conditioner refrigeration system at first glance: careful observation of whether the air conditioner is in good shape and whether the components are damaged; whether the pipes are broken throughout the air conditioner refrigeration system and whether there are oil stains in the various welds, indicating leaks in the welds, if any, and whether the electrical components are installed loosely. For break-up air conditioners, a double pressure sheet can be used to gauge whether the operational pressure values of the operating refrigeration system are normal. Air-conditioning systems using r22 as refrigerant at ambient temperature of 30
Line pressure values, low pressure surface pressure shall be within range and high pressure surface pressure shall be within range. Two touch: the coating of the condenser and compressor parts of the detected air conditioner will be removed completely. When the compressor runs 15-min, put your hand on the air vent, feel if there's a hot wind blowing out, if there's a hot wind blowing out as normal, if there's no heat blowing out as abnormal; and if there's an overheating feeling with a finger on the compressor's shell (which should be confirmed without electricity) the upper shell of the compressor should feel hot hands in the summer; the hand should be hot in the summer and hot in the winter when the compressor's high-pressure exhaust is touched; the cooling feel should feel in the low-pressure pipe; the surface temperature of the dry filter should be higher than that of the environment; if the temperature is felt to be lower than that of the environment, there should be a condensation on the surface of the dry filter, suggesting that there is a partial “dirty block” in the filter; if the exhaust of the compressor is not hot or heat, the refrigerant may have leaked
16. Three hearings: listen carefully to the sound of air conditioners operating, distinguishing between normal noises operating or malfunctioning noises. If centrifugal fans and axle-stream fans operate with a smooth and even sound, if there is a metallic collision, they are shown to be foliage or mischievous axes. The compressor shall have a flat and smooth running sound after the power has been activated, and if a “bum” sound occurs inside the compressor after the powering, it is indicated that the compressor has a mechanical malfunction and cannot start the operation. Iv. To determine precisely the location and nature of the malfunction, based on a preliminary examination of the air conditioner by visual, hearing, and touch, the electrical power voltage can be measured on a universal scale and insulation resistance can be measured on a mega-eat scale; electrical parameters, such as running currents, are measured on a plating current table, and the extent of leakage or leakage of the refrigerant is checked on an electronic leakage detector. The principle of analysing frequent air conditioner malfunctions is that they are simple-to-heavy, tabulated and in-line, by system segment, reasoning. First, it starts with a simple, superficial analysis, followed by a complex, internal examination; first, by the most likely, most common cause, then by the less likely, rare cause; first, by distinguishing the location of the malfunction, then by a certain order of reasoning. In short, the principles of screening and comprehensive analysis are followed. Once the underlying phenomenon of failure is understood, the underlying cause of the failure can be fully analysed in the light of the characteristics of the air conditioner structure and its rationale; it can also be determined from certain characteristics. And so..
