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Summary of Contents for AUX E Series

• Page 2 AUX air conditioning. Part VI, i.e. Annex 1, provides all fault codes of AUX air conditioning so as to enable service workers to judge the faults correctly(in case of any change of Technical parameters and installation &..

• Page 3: Table Of Contents

  Section two H series products………………………………………………………………….….121 Section three Floor-standing type air conditioner exploded pictures……………………………..141 Chapter 4 The disassembly and the relating attention issues to the part of AUX product……….….150 Section one the disassembly and the relating attention issues to the series products of 9000BTU~12000BTU……………………………………………150 Section two the disassembly and the relating attention issues to the series product of 18000BTU~24000BTU…………………………………….…….154..

• Page 4: Chapter 1 The Operation Theory Of The Home Air-conditioner

  AUX air conditioner service manual Chapter 1 the operation theory of the home Air-Conditioner Section one the basic knowledge of pyrology and ventilation 1. Basic Definition ⑴ Temperature Temperature is a physical value for the definition of the percentage of the cold and heat to an object.
• Page 5 AUX air conditioner service manual The pressure is distinguished by gauge pressure and absolute pressure applied in the practice. The gauge pressure is validated according to the numerical value shown on the pressure gauge. This value, based on an atmospheric pressure (0), is the difference of the actual pressure of the tested gas and the ambient atmospheric pressure.
• Page 6 AUX air conditioner service manual applied in the separating process by the gas & liquid separator. ⑷Heat Energy The heat energy of the substance, the internal energy, is the sum of the kinetic energy and potential energy. The quantity of heat is the physics parameter for measuring the heat absorbed or released by the physical object, and is one of the representation forms of energy.
• Page 7 AUX air conditioner service manual your hand will feel heated. Different materials have different heat conductivity. In this case, the heat conductivity coefficient was introduced as the unit of the value for measuring purpose. Such coefficient represents the amount of heat that passes by conduction through a one meter thickness of homogeneous material, per one hour and per one square meter Measured as 1℃..
• Page 8 AUX air conditioner service manual impacted by force, for example the convection of the refrigerant inside the pipes caused by the impact from the compressor of the refrigerator and air-conditioner, and the forced convection to the condenser and evaporator impacted by the fan. The heat transfer coefficient is directly proportional to the flow speed of the forced convection.
• Page 9 AUX air conditioner service manual water in the air within the temperature zone under 100℃, the absolute humidity can be represented by the pressure value created by the water vapor in the air. The pressure unit is: Pa. Less relative humidity means more dry of the air. Zero percent of the relative humidity value means 100 percent dry air.

• Page 10: Section Two The Basic Knowledge Of Refrigeration

  AUX air conditioner service manual temperature value shall be determined by the industry & mineral enterprises, scientific & research institutes, medical and sanitary units according to their own specific purposes. The process of air temperature conditioning is substantially the process of adding or reducing sensible heat.
• Page 11 AUX air conditioner service manual ②Freon species refrigerant They are the ramifications of methane and ethane with the changing character in consequence of the quantities variety of the atoms of fluorine, hydrogen and chlorine. The best option for choosing a chemical compound at the vaporizing temperature of -130℃..
• Page 12 AUX air conditioner service manual ⑴The requirement for the thermodynamic character The basic requirements the refrigerant shall meet are: ①Under the standard atmosphere pressure, the evaporation temperature must be low and generally shall not higher than -10℃. The pressure value under the normal evaporation temperature shall be higher or closed to the atmosphere pressure value in case of the air’s in leakage to the system.
• Page 13 AUX air conditioner service manual specific type and temperature of the lubricating oil. The capacity per unit of R22 is almost same as the one of R717 while it will be higher than R22 under a low temperature.R22 is usually applied in the middle temperature refrigerating systems with the object lowest refrigerating temperature of up than -60℃.
• Page 14 AUX air conditioner service manual Slippage temp.℃） <0.17 4～6 Capacity of refrigeration （%） COP（%） 92.5 Lubricating oil Mineral oil Lubricating oil Mutual solubilization Good Fair Fair 2. The theory of refrigeration There are many methods in artificial refrigeration. The most popular one among of them applied in practice is the steam-compressing type.
• Page 15 AUX air conditioner service manual high temperature mediums. It’s absolutely necessary to a refrigeration system without lack of the Compressor, Condenser, Throttle device and Evaporator. As to the other auxiliary parts, they are configured and constructed in order to promote the economy, the reliability and the safety of the system.
• Page 16 AUX air conditioner service manual operation under the rating working status and the specified condition. ⑷Heating capacity It means the total quantity of heat per unit time transferred by the air-conditioner to the closed space, room or area under the rating working status and specified condition. Unit: W or BTU.
• Page 17 AUX air conditioner service manual electrical appliances and other factors. Basing on the experience, we can set the value of 150—240W/M (120—300W/M is applicable in more large room or space) as the cooling load per unit working area, and the actual applicable coverage area of the air-conditioner is the result of the cooling capacity being divided by the cooling load.
• Page 18 AUX air conditioner service manual The rating current (A) of The section area of the plastic insulated leads (mm²) the air-conditioner Copper core Aluminum core (As per the nameplate) 1(1.5) ＜＝6 6-10 1.5(2.5) 10-16 2.5(4) 16-25 4(6) 25-35 Note: ①Aluminum leads are not recommended in use;..
• Page 19 AUX air conditioner service manual air-conditioner. Although the unit “W” is same as the one used for the cooling capacity, they have different practice signification: As we all know 1Hp=735.499W, which stands for the consumption power of the compressor, but the cooling capacity indicates the quantity of heat absorbed from the room by air-conditioner within a unit time.

• Page 20: Section Three The Basic Structure Of The Air-conditioner

  AUX air conditioner service manual Table1-7 the noise to the sense of the human beings: 20dB Silence Broadcasting room with nobody in 30dB Very quiet The odium with nobody in 40dB Almost insensible to the noise Inside the quiet library..
• Page 21 AUX air conditioner service manual and air system etc., and each of them is composed of different parts. It’s necessary to know the specific composition of the air-conditioner before learning it. In this case, we’d like to specify the structure and performance of each parts of the air-conditioner as the following: 1.
• Page 22 AUX air conditioner service manual as to form a dynamic sealing. The dynamic sealing separates the space between the rotor and the cylinder surface to be two parts, one is air inlet antrum, and the other one is compressing antrum.
• Page 23 AUX air conditioner service manual compression impact to the compressor. ④Heat exchanger The evaporator and t he condenser are called heat exchanger. The evaporator gasify and evaporates the liquid refrigerant so as to absorb the heat from outside; on the contrary, the condenser releases the heat to outside so as to low down the temperature of the gas refrigerant and liquefy it.
• Page 24 AUX air conditioner service manual ) Evaporator: Evaporator is al so called cooler. It is the apparatus used for direct cooling purpose in the refrigerating cycle and is usually installed inside the indoor unit. The evaporator applied in the air-conditioner is the wing coil type with high heat transmission coefficient and compact structure.
• Page 25 AUX air conditioner service manual he air-conditioners in different specification have different capacity So, the throttling component in controlling the different flux shall be different. The throttling component type in the general air-conditioner includes the capillary tubes type and expansion valve type. But only capillary tubes applied in the home use air-conditioner because of the small flux it is.
• Page 26 AUX air conditioner service manual ⑺The stop valve For controlling the braking of the refrigerant existing in the pipes of the refrigeration system, and switching its flowing direction for the purpose of switching the heating and refrigerating function of the air-conditioner as well as easy service operation, there are various types stop valve units are amounted in the pipelines of the air-conditioner’s refrigeration system.
• Page 27 AUX air conditioner service manual capillary tubes. When the loop is not electrified, the iron core and the valve bowl move left by the thrust of the spring. At this moment, capillary tube d and c are contacted (in high pressure), capillary tube a and b are connected (in low pressure), thereby drive the slide of the four- way valve to move left, and the four-way valve E will be connected with S, D will be connected with C。..
• Page 28 AUX air conditioner service manual When the air-conditioner runs the heating mode, the loop of the solenoid guiding valve is electrified and the iron core drives the valve bowl to move right. Then the capillary tube a connects to d (in high pressure) and b connects to c (in low pressure).
• Page 29 AUX air conditioner service manual refrigerant’s flow route, and the one-way valve is in close status. It’s not reliable to rely on the electromagnetic reversing valve only for controlling the flow direction of the refrigerant due to great disparity existing in the working conditions between the cooling and heating modes of the heat pump air conditioner.
• Page 30 AUX air conditioner service manual separately to the joint entry of the gas tube and liquid tube of the outdoor unit of the split type air-conditioner. The cut-off valve is a kind of close valve for pipeline. It controls the pass and stop of the refrigerant flow by manual open-close control valve core.
• Page 31 AUX air conditioner service manual ⑼Pressure switch The pressure switch of the air-conditioner is a kind of on-off component that transforms the pressure signal to be the electricity signal so as to control the air-conditioner. It provides a safety protection to the operation of air-conditioner.
• Page 32 AUX air conditioner service manual ⑽The other parts:..
• Page 33 AUX air conditioner service manual..

• Page 34: Chapter 2 Introduction Of Aux Products

  AUX air conditioner service manual Chapter 2 Introduction of AUX products Section one the split&wall-mounted type Ⅰ.The characteristics of the appearance and structure 1. The appearance photos of the outdoor unit outdoor unit 1 outdoor unit 2 outdoor unit 3 2.
• Page 35 AUX air conditioner service manual ⑷The air vane’s automatic swing function and the position setting function; ⑸The buzzer’s driving function; ⑹The indoor fan’s driving function; ⑺The timing on-off function; ⑻The compressor restarting protection function; ⑼The indoor heat-exchanger overheating protection function under heating mode;..
• Page 36 AUX air conditioner service manual protection), the wind speed of the indoor fan is high wind, the running mode is cooling mode, and the wind door is maximum opening. b) There are no anti-freezing protection and high temperature-preventing protection during trial operation.
• Page 37 AUX air conditioner service manual ⑧Automatic wind-speed control： TA - TS≥3℃，wind-speed works in high wind; TS +1℃≤TA＜TS +3℃，wind-speed works in middle wind; TA – TS＜1℃，wind-speed works in low wind; Without 3 minutes delay when the wind speed turns from the high wind from the low wind, otherwise with 3 minutes delay;..
• Page 38 AUX air conditioner service manual ⑹Ventilation mode Under ventilation mode, the outdoor unit is always off, and the indoor fan runs according to the default wind-speed. The remote control can be set with three types wind-speed, e.g. high fan, low fan and silent fan except the strong fan;..
• Page 39 AUX air conditioner service manual ⑨Anti cold-wind and Residual-heat Removing function: TE controls the wind speed of the indoor fan, and the specific conditions are as below: ●The anti cold-wind status when the compressor runs: a) When TE in rise status and at the moment of TE＜TE1，the indoor fan turns off；TE2≤TE＜TE3，..
• Page 40 AUX air conditioner service manual indoor fan stops immediately. ⑩Overheated protection： a)When heating function runs，if TE≥TE9 and last for 10seconds，the outdoor fan stops；if TE≥TE10 and last for 10seconds, then stop the compressor；When TE< TE11 and after the 3 minutes protection delay, the compressor resumes normal working.
• Page 41 AUX air conditioner service manual the temperature difference correction value shall be -1℃，if the wind speed of the indoor fan rises by one gear, the temperature difference correction value shall be +1℃. ● a)The accumulated operation time of the compressor≥3hour；..
• Page 42 AUX air conditioner service manual The sleeping process under cooling mode: Setting temperature rises another 1℃ rises 1℃ Previous Setting temperature 7h（end sleeping process，turn off） The sleeping process under heating mode: Setting temperature Previous setting falls 2℃ temperature Falls another 2℃..
• Page 43 ⒁The definition to swing angle of the air door Picture 3 shows the swing angle of the step motor of E series wall-mounted type air-conditioner under 4.8kW (Except 4.8 kW);..
• Page 44 AUX air conditioner service manual swing, the swing angle will never change； ⑥After turning off the air-conditioner and stopping the running of the indoor fan, the air door shut off automatically; ⑦Enter into the automatic mode by pressing the Emergency button, the air door opens after the setting mode of the system starts.
• Page 45 AUX air conditioner service manual equipped with the corresponding E main chip, the “I feel” function shall be equipped with the corresponding remote controller, and the “Negative ion” shall be equipped with the corresponding relay. ①Auto-restart control function a)The setting method for Auto-restart function: After the controller being electrified, press the sleeping button on the remote control for 10 times within 5seconds towards to the controller, later, if the Auto-restart function is successfully set, there are four sounds delivered from the buzzer;..
• Page 46 AUX air conditioner service manual (18000BTU~24000BTU) 1. The basic conditions for the operation of the controller ⑴The applicable voltage range of the electrical power: The input voltage 175 V – 253V; ⑵ The input AC current frequency: 50Hz ； ⑶..
• Page 47 AUX air conditioner service manual working. The setting temperature is 24℃ and the setting wind speed is strong wind; c) When TA≤20℃, the controller enters into the heating mode and follows the mode in working (The cooling only type runs with the ventilation mode). The setting temperature herein is 24℃ and the setting wind speed is strong wind;..
• Page 48 AUX air conditioner service manual speed can be adjusted through the button of “wind speed selection” in the selection of the four wind speeds type, such as strong wind, high wind, low wind and mute wind. The four-way valve always is closed under this mode.
• Page 49 AUX air conditioner service manual ②Under the dehumidification mode, after the 3 minutes delay conditions being meet satisfactorily, the performance of the compressor and the outdoor fan is as following: a)TA ≥ TS+2℃，the compressor and the outdoor fan works continuously, the wind speed retains the setting wind speed;..
• Page 50 AUX air conditioner service manual The setting temperature can be decided and adjusted by the remote control within the control range of 16℃ - 32℃ through the button of temp. Add “+” and temp. Reduce “-”. Press the button “wind speed option”..
• Page 51 AUX air conditioner service manual ①When TE is in rise status, if Te<30℃,the indoor fan turns off;30℃≤TE＜38℃,the indoor fan runs at low fan speed;Te≥38℃, the indoor fan runs at setting wind speed; ②When Te in fall status, if TE>34℃,the indoor fan runs at the setting fan speed;28℃＜TE≤34℃,the indoor fan runs at the low fan speed;TE≤28℃，the indoor fan turns off.
• Page 52 AUX air conditioner service manual ⑾Anti-high temperature protection： ①when run on Heating mode，if TE≥57℃ and continuously last 10 seconds, the outdoor fan stops; if TE≥64℃ and last for 10s，the compressor stops again；When TE< 52℃ and satisfying 3minutes protection delay condition, the compressor resume normal work.。..
• Page 53 AUX air conditioner service manual heating quit during the operation process of the compressor. ⑼ Sleeping control function The sleeping function is valid during the automatic, cooling, dehumidifying and heating process. The indoor fan runs at low fan speed during sleeping mode, and the sleeping indication light on;..
• Page 54 AUX air conditioner service manual timing range is 1min.-24hour. The air-conditioner stops automatically once the setting timing reached. ②Timing turns on The timing turns on function can be set only under the running status of the air-conditioner. The timing range is 1min.-24hour. The air-conditioner turns on automatically once the setting timing reached.
• Page 55 AUX air conditioner service manual door’s swing angle of 18000BTU,24000BTU and 7000BTU,12000BTU are same，but the swing directions of the motors are not same. ①Once being electrified, the air door effect a motion of totally closed, and the swinging speed is 1 step/4ms；..

• Page 56: Optional Functions

  AUX air conditioner service manual PCB. ⒂Optional functions The below functions’ programs are already write into the Main chip of the PCB, and can be performed if only the corresponding hardware is available. For example: the E CMOS chip is in need for the Auto-restart function, the corresponding remote control is in need for the I feel function, and the relay is in need for the Negative ion function.
• Page 57 AUX air conditioner service manual negative ion relay in the controller turns on for starting the output of the negative ions; When the negative ion function is on, press the negative ion function button on the remote control, and the..
• Page 58 AUX air conditioner service manual Ⅳ The tech. parameter of part products 1.Parameter of product R22（9000BTU~12000BTU） ASW-09A4/E* ASW-H09A4/E* ASW-12A4/E* ASW-H12A4/E* Model Item Indoor Outdoor Indoor Outdoor Indoor Outdoor Indoor Outdoor Type Wall mounted Wall mounted Wall mounted Wall mounted Cooling..
• Page 59 AUX air conditioner service manual ASW-12B4/E* ASW-H12B4/E* Model Item Indoor Outdoor Indoor Outdoor Type Wall mounted Wall mounted Cooling Kg/h Dehumidifying Heating 3.85 Cooling Air Flow Volume Heating Cooling Noise Heating 1/220-240~/50 1/220-240~/50 Power supply 1300 1300 Cooling Rated input..
• Page 60 AUX air conditioner service manual 2.Parameter of product RR407C（9000BTU~12000BTU） ASW-09A4/E*R ASW-H09A4/E*R ASW-12A4/E*R ASW-H12A4/E*R Model Item Outdoor Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Type Wall mounted Wall mounted Wall mounted Wall mounted Cooling Dehumidifying Kg/h Heating 3.52 2.75 Cooling Air Flow..
• Page 61 AUX air conditioner service manual ASW-12B4/E*R ASW-H12B4/E*R Model Item Outdoor Outdoor Indoor Indoor Type Wall mounted Wall mounted Cooling Dehumidifying Kg/h Heating 3.85 Cooling Air Flow Volume Heating Cooling Noise Heating 1/220-240~/50 Power supply 1/220-240~/50 1400 Cooling 1400 Rated input..
• Page 62 AUX air conditioner service manual 3.Parameter of product R410a（9000BTU~12000BTU） ASW-12B4/E*R1 ASW-09A4/E*R1 ASW-H09A4/E*R1 ASW-H12B4/E*R1 Model Item Outdoor Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Type Wall mounted Wall mounted Wall mounted Wall mounted Cooling Dehumidifying Kg/h Heating 3.85 2.75 Cooling Air Flow..
• Page 63 AUX air conditioner service manual 4.Parameter of product R22（18000BTU~24000BTU） ASW-18B4/E* ASW-H18B4/E* ASW-24B4/E* ASW-H24B4/E* Model Item Outdoor Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Type Wall mounted Wall mounted Wall mounted Wall mounted Cooling Dehumidifying Kg/h Heating 14.6 16.7 16.7 14.6..
• Page 64 AUX air conditioner service manual 5.Parameter of product R407C（18000BTU~24000BTU） ASW-18B4/E*R ASW-H18B4/E*R ASW-24B4/E*R ASW-H24B4/E*R Model Item Outdoor Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Type Wall mounted Wall mounted Wall mounted Wall mounted Cooling Dehumidifying Kg/h Heating 14.6 14.6 16.7 16.7..
• Page 65 AUX air conditioner service manual 6.Parameter of product R410a（18000BTU~24000BTU） ASW-24B4/E*R1 ASW-18B4/E*R1 ASW-H18B4/E*R1 ASW-H24B4/E*R1 Model Item Outdoor Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Type Wall mounted Wall mounted Wall mounted Wall mounted Cooling Dehumidifying Kg/h Heating 14.6 14.6 16.7 16.7..

• Page 66: Section Two Floor Standing Unit Type

  AUX air conditioner service manual Section two Floor standing unit type ⅠThe characteristics of the appearance and structure The appearance photos of the indoor unit and outdoor unit VB panel CS panel P panel ZV panel DS panel FS panel..
• Page 67 AUX air conditioner service manual YK(R) -E/01E YK（R）-F/003（or YK（R）-F/01JS） YK(R)-D/02E Ⅲ Operation interface Z model e f g S ET TE MP R O OM T E MP ℃ ℃ ●The function of the buttons and the corresponding indication light display: 1.
• Page 68 AUX air conditioner service manual fixed →grid swings up and down → grid is fixed; 6. Wind speed button: used for selecting the fan’s speed (includes the conditions of high fan and low fan) 7. On-off button: used for controlling the start and close of the air-conditioner.
• Page 69 AUX air conditioner service manual 4. Wind grid button: used for adjust the horizontal wind direction. 5. Temperature regulating button: Used for regulating the setting temperature. This button is invalid when running in the ventilation mode. After pressing down the two buttons simultaneously and last for about 2 seconds, the lock function will be set and the other buttons on the operation panel and those on the remote controller will be invalid except the “lock”..
• Page 70 AUX air conditioner service manual 2. Mode button: used for selecting the working mode of the air-conditioner (the option working mode of two pump type includes cooling, dehumidifying, heating and ventilating; The option working mode of cooling only type includes cooling, dehumidifying and ventilating) 3.
• Page 71 AUX air conditioner service manual ⑶The indoor fan’s driving function; ⑷Numerical tube displaying and fault alerting function; ⑸The timing on-off function; ⑹The compressor restarting protection function; ⑺The indoor heat-exchanger overheating protection function under heating mode; ⑻The automatic defrosting and automatic reheating function under heating mode;..
• Page 72 AUX air conditioner service manual left grid runs－grid stops－up and down grid runs－grid stops－up and down, right and left grid runs, and the corresponding indication light of “up and down grid, right and left grid” twinkles; If don’t press the “Swing” button, the corresponding indication light of “up and down grid, right and left grid”..
• Page 73 AUX air conditioner service manual b) When the air-conditioner turns off, the timing close function can be set by pressing the “timing” button if there is no time setting. It enters the time regulatory setting moment and the primary setting is six hours.
• Page 74 AUX air conditioner service manual ⑩“display” button When the Digital display screen displays, press the “display” button for hiding the screen; re-press the “display” button, the Digital display screen resume the normal display condition. ⑵Specification of the working mode The unit has the memory function (memorizing the fan speed, setting temperature etc.) when the modes transform.
• Page 75 AUX air conditioner service manual fan unit stops within 3 minutes after compressor stops, and the others runs at low fan speed. c)TA≤TS, compressor，outdoor fan unit stop, the indoor fan unit starts run at low fan speed after stopping for 3 minutes.
• Page 76 AUX air conditioner service manual ☆When heating turns off： A、If TE≥TE5，the indoor fan unit runs at the low fan speed for 10 seconds. the indoor fan unit closes. B、If TE＜TE5， ⑤Ventilating mode a)When ventilating，only display the indoor temperature but without the setting temperature and its display.
• Page 77 AUX air conditioner service manual B、When the accumulated running time of the compressor is over than 45minutes, and the continuous running time is over than 20 minutes, After the difference value of the coil temperature and the indoor room temperature≤16℃ and last for 5 minutes. Start the defrosting process if meet the above conditions.
• Page 78 AUX air conditioner service manual mode, the temperature falls by another 2℃. c) When sleeping function runs for more than 7 hours, the system turns off automatically. d)If the setting temperature is going to be reset, the setting temperature during running process changes accordingly.
• Page 79 AUX air conditioner service manual compressor. ⑥Self-detecting function Press the on-off button of the control panel and connect the electricity power, the controller complete the self-testing function along with the following procedure: LED digital screen displays in full screen size, operation light on(ended until the completion..
• Page 80 AUX air conditioner service manual ⑹The outdoor fan: Tap ironclad motor, only one speed and the outdoor fan relay (220VAC/5A)×1; ⑺Four-way valve relay (220VAC/5A)×1; ⑻The Swing Motor is synchro motor : relay (220VAC/5A)×2; The compressor control of 51 series model is the direct relay control (220VAC/30A, 220VAC/15A) COS￠=0.4）..
• Page 81 AUX air conditioner service manual ⑵displaying panel 2. The location chart of the main components on indoor controlling PCB as per the drawing 3. The specification of the displaying panel and remote button The functions of the main buttons The controller can be controlled by the touch screen of the control panel and the infrared remote controller.
• Page 82 AUX air conditioner service manual dehumidifying condition. ④“Swing”button If press the “Swing” button, the air grid will runs in the mode cycle of: air grid stops -up and down, right and left grid runs－grid stops－right and left grid runs－grid stops－up and down grid runs.
• Page 83 AUX air conditioner service manual cancelled. b) When the air-conditioner turns off, the timing ON function can be set by pressing the “timing” button if there is no time setting. The“ ” indication light on the remote controller’s LCD screen twinkles and shows the setting timing time, the primary time setting is AM12：00.Press the“▲”button..
• Page 84 AUX air conditioner service manual ⑶Specification of the control function The memory function is valid when each mode being transformed. ●Primary electrified The controller selects the modes of cooling, dehumidifying or heating (ventilating) mode automatically according to the indoor temperature while being primary electrified.
• Page 85 AUX air conditioner service manual The temperature setting range is 16℃～32℃ a)Primary setting temperature is 20℃， setting fan speed is middle fan， press” plus” and“minus”button to adjust the setting temperature. Press the “fan speed” button to select the setting fan speed among the low fan, middle fan and high fan speed.
• Page 86 AUX air conditioner service manual ●Auxiliary electric-heater function (automatic run) a) When running under heating mode, the auxiliary electric heating starts if the electric heating is permitted by and meets the following conditions: A、The compressor runs in the mode of heat pump for 4 minutes.
• Page 87 AUX air conditioner service manual C、When the accumulated running time of the compressor is over than 3 hours, and the continuous running time is over than 20 minutes, start the defrosting process when the difference value of the coil temperature and the indoor temperature≤16℃ and last for 3 minutes.
• Page 88 AUX air conditioner service manual mode, the setting temperature falls by 2℃，the setting temperature display on the panel is invariable. c)After another one hour running period, to cooling mode, the temperature rises by another 1℃，to heating mode, the temperature falls by another 2℃.
• Page 89 AUX air conditioner service manual to fix and stop at the 90°horizontal position. d) When close the air swing angle, opens the angle by 140°in the opening direction of the swing, and return back by 160°in the close direction. ●The delay protection function of the compressor a) There is no 3 minutes delay protection when the compressor turns on after being initial electrified.
• Page 90 AUX air conditioner service manual Self-detection sequence chart b) Time-Lapse function The air-conditioner starts the time-Lapse function after the self-detection and the starts with electricity. Any operation processes in need of time extension or counting can be carried out along with the time-lapse process (including timing on/off, sleeping, system protection, time delay etc.);..
• Page 91 AUX air conditioner service manual c) Anti-freezing protection The LCD numerical screen of the operation panel displays E4. d)Overheating protection The LCD numerical screen of the operation panel displays E5. e)“heating” mode indication light twinkles Under the heating mode, if the indoor fan unit stop working and last for more than 10 minutes, the “heating”..
• Page 92 AUX air conditioner service manual Centrifugal Centrifugal Centrifugal Centrifugal Air blade type blade blade blade blade Specification of air blade 350-152 350-152 350-152 350-152 (dia.-length Model of the 49TDY/49TD 49TDY/49TD 49TDY/49TDJ 49TDY/49TDJ step-motor Power W Fuse A Noise dB(A) 38~42..
• Page 93 AUX air conditioner service manual Noise dB(A) Dimension cm 37.8×86.7×6 37.8×86.7×6 32×81.8×54 32×81.8×54 (L×W×H) Net weight kg Installation size mm 540×326 Original length m Outer Liquid 9.52 9.52 diameter / tube thickness Gas tube 15.88 15.88 Liquid Specificati Connectin tube..
• Page 94 AUX air conditioner service manual Max. input power W 2700 3000 3450 3800 Max input current A 13.6 15.1 17.4 Refrigerant The model of Plastic-sealed YDK30-8B YDK30-8B YDK52-8A YDK68-8A motor Rotate speed of the motor 400/350/300 400/350/300 480/440/360 540/480/440 r/min..
• Page 95 AUX air conditioner service manual Motor power W Motor capacitor Air blade (diameter mm) Refrigerant 1.15 1.15 1.65 2.15 charge kg Refrigerant control Working temperature of the -7~43 -7~43 -7~43 -7~43 compressor Inner installed Inner installed Inner Protection device Inner installed..
• Page 96 AUX air conditioner service manual Three phase series ⑶ Total unit ASF-H24B5/B ASF-24B5/B ASF-H41A5/C ASF-41A5/C model Indoor unit ASF-H24B5/B ASF-24B5/B ASF-H41A5/C ASF-41A5/C items Outdoor AS-H24B5/B AS-24B5/B AS-H41A5/C AS-41A5/C unit 7000 7000 12000 12000 Cooling capacity Btu/h 23900 23900 41000 41000..
• Page 97 AUX air conditioner service manual Net weight kg Specification of the electric 5×2.5mm 5×2.5mm 5×2.5mm 5×2.5mm cable Specification of the electric source 5×1.5mm 5×1.5mm 5×1.5mm 5×1.5mm connecting cable ASF-H24B5 ASF-41A5/ Total unit ASF-24B5/B ASF-H41A5/C model ASF-H24B5 ASF-41A5/ Indoor unit ASF-24B5/B..

• Page 98: Section Three Introductions Of The Optional Functions

  AUX air conditioner service manual Original length m Outer Liquid 9.52 9.52 9.52 9.52 diameter tube /Thicknes 15.88 15.88 19.05 19.05 s mm tube Specificat Liquid ion of the tube Connectin Copper g tube Dg13 Dg13 Dg16 Dg16 tube Distance Max.
• Page 99 AUX air conditioner service manual the negative ion. Usually, the quantity of the negative ion contained in the air will be cut off almost by 50 percents. The main function of the negative ion is for refreshing the air. More high concentration ratio the negative ion is, the human body will feel more comfortable as being in the nature.

• Page 100: Chapter 3 Exploded Pictures Of Aux Products

  AUX air conditioner service manual Chapter 3 Exploded pictures of AUX products Section one E series products 1. ASW-H09A4/ET Indoor unit exploded picture..
• Page 101 AUX air conditioner service manual Detailed part list of ASW-H09A4/ET indoor unit Chinese Name Name Material Number 面板组件 Panel 杀菌过滤网 Anti-bacterial Filter 维 C 防螨过滤网 Vitamin-C & Anti-mites Filter 过滤网组件 Filter 螺钉盖 Screw cover 中框盖 Cover of medium frame 中框组件..
• Page 102 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 103 AUX air conditioner service manual Detailed part list of ASW-H09A4/ET outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 104 AUX air conditioner service manual 2. ASW-H09A4/EC Indoor unit exploded picture..
• Page 105 AUX air conditioner service manual Detailed part list of ASW-H09A4/ET indoor unit Chinese Name Name Material Number 面板组件 Panel 杀菌过滤网 Anti-bacterial Filter 维 C 防螨过滤网 Vitamin-C & Anti-mites Filter 过滤网组件 Filter 螺钉盖 Screw cover 中框盖 Cover of Medium frame 中框组件..
• Page 106 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 107 AUX air conditioner service manual Detailed part list of ASW-H09A4/EC outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 108 AUX air conditioner service manual 3. ASW-H12A4/ET Indoor unit exploded picture..
• Page 109 AUX air conditioner service manual Detailed part list of ASW-H12A4/ET indoor unit Chinese Name Name Material Number 面板组件 Panel 杀菌过滤网 Anti-bacterial Filter 维 C 防螨过滤网 Vitamin-C & Anti-mites Filter 过滤网组件 Filter 螺钉盖 Screw cover 中框盖 Cover of medium frame 中框组件..
• Page 110 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 111 AUX air conditioner service manual Detailed part list of ASW-H12A4/ET outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 112 AUX air conditioner service manual 4. ASW-H12A4/EC Indoor unit exploded picture..
• Page 113 AUX air conditioner service manual Detailed part list of ASW-H12A4/EC indoor unit Chinese Name Name Material Number 面板组件 Panel 杀菌过滤网 Anti-bacterial Filter 维 C 防螨过滤网 Vitamin-C & Anti-mites Filter 过滤网组件 Filter 螺钉盖 Screw cover 中框盖 Cover of Medium frame 中框组件..
• Page 114 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 115 AUX air conditioner service manual Detailed part list of ASW-H12A4/EC outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 116 AUX air conditioner service manual 5. ASW-H18B4/ET Indoor unit exploded picture..
• Page 117 AUX air conditioner service manual Detailed part list of ASW-H18B4/ET indoor unit Chinese Name Name Material Number 面板组件 Panel 大扁头自攻螺钉 Screw 电控盒盖 Cover of medium frame 螺钉盖 Screw cover 大扁头自攻螺钉 Screw 导风门 A Horizontal air blade A 导风门 B Horizontal air blade B 导风门连杆..
• Page 118 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 119 AUX air conditioner service manual Detailed part list of ASW-H18B4/ET outdoor unit Chinese Name Name Material Number 左侧支撑板 Left-side supporting plate 钢丝网罩 Steel grille 大扁头自攻螺钉 Screw 顶盖板 Top cover board 大面板 Front panel 冷凝器总成 Condenser assembly 右侧板 Right-side panel plate 小挖手..
• Page 120 AUX air conditioner service manual 6. ASW-H24B4/ET Indoor unit exploded picture..
• Page 121 AUX air conditioner service manual Detailed part list of ASW-H24B4/ET indoor unit Chinese Name Name Material Number 面板组件 Panel 大扁头自攻螺钉 Screw 电控盒盖 Cover of medium frame 螺钉盖 Screw cover 大扁头自攻螺钉 Self-drill screw 导风门 A Horizontal air blade A 导风门 B Horizontal air blade B 导风门连杆..
• Page 122 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 123 AUX air conditioner service manual Detailed part list of ASW-H24B4/ET outdoor unit Chinese Name Name Material Number 左侧支撑板 Left-side supporting plate 钢丝网罩 Steel grille 大扁头自攻螺钉 Screw 顶盖板 Top cover board 大面板 Front panel 冷凝器总成 Condenser assembly 右侧板 Right-side panel plate 小挖手..

• Page 124: Section Two H Series Products

  AUX air conditioner service manual Section two H series products 1. ASW-H09A4/HSF Indoor unit exploded picture..
• Page 125 AUX air conditioner service manual Detailed part list of ASW-H09A4/HSF indoor unit Chinese Name Name Material Number 面板组件 Panel 过滤网组件 Filter 电器盖板 Cover of medium frame 中框盖 Medium frame 导风门 Horizontal air blade 导风叶片 Vertical air blade 导风架 Air blade holder 步进电机组件..
• Page 126 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 127 AUX air conditioner service manual Detailed part list of ASW-H09A4/HSF outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 128 AUX air conditioner service manual 2. ASW-H09A4/HSL Indoor unit exploded picture..
• Page 129 AUX air conditioner service manual Detailed part list of ASW-H09A4/HSL indoor unit Chinese Name Name Material Number 面板组件 Panel 过滤网组件 Filter 电器盖板 Cover of medium frame 中框盖 Medium frame 导风门 Horizontal air blade 导风叶片 Vertical air blade 导风架 Air blade holder 步进电机组件..
• Page 130 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 131 AUX air conditioner service manual Detailed part list of ASW-H09A4/HSL outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 132 AUX air conditioner service manual 3. ASW-H09A4/HS Indoor unit exploded picture..
• Page 133 AUX air conditioner service manual Detailed part list of ASW-H09A4/HS indoor unit Chinese Name Name Material Number 面板组件 Panel 过滤网组件 Filter 电器盖板 Cover of medium frame 中框盖 Medium frame 导风门 Horizontal air blade 导风叶片 Vertical air blade 导风架 Air blade holder 步进电机组件..
• Page 134 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 135 AUX air conditioner service manual Detailed part list of ASW-H09A4/HS outdoor unit Chinese Name Name Material Number 面板网罩 Steel grille 面板组件 Front panel 顶盖板 Top cover board 轴流风叶 Outdoor fan 室外电机 Outdoor fan motor 电机架 Motor bracket 冷凝器组件 Condenser assembly 冷凝器进气管..
• Page 136 AUX air conditioner service manual 4. ASW-H18B4/HS Indoor unit exploded picture..
• Page 137 AUX air conditioner service manual Detailed part list of ASW-H18B4/HS indoor unit Chinese Name Name Material Number 过滤网组件 Filter 螺钉盖 Screw cover 中框组件 Medium frame 导风门 Horizontal air blade 导风叶片 Vertical air blade 导风架 Air blade holder 蒸发器左支架 Left plastic crutch for evaporator 蒸发器总成..
• Page 138 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 139 AUX air conditioner service manual Detailed part list of ASW-H18B4/HS outdoor unit Chinese Name Name Material Number 左侧支撑板 Left-side supporting plate 钢丝网罩 Steel grille 大扁头自攻螺钉 Screw 顶盖板 Top cover plate 大面板 Front panel 冷凝器总成 Condenser assembly 右侧板 Right-side plate 小挖手..
• Page 140 AUX air conditioner service manual 5. ASW-H24B4/HS Indoor unit exploded picture..
• Page 141 AUX air conditioner service manual Detailed part list of ASW-H24B4/HS indoor unit Chinese Name Name Material Number 过滤网组件 Filter 螺钉盖 Screw cover 中框组件 Medium frame 导风门 Horizontal air blade 导风叶片 Vertical air blade 导风架 Air blade holder 蒸发器左支架 Left plastic crutch for evaporator 蒸发器总成..
• Page 142 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 143 AUX air conditioner service manual Detailed part list of ASW-H24B4/HS outdoor unit Chinese Name Name Material Number 左侧支撑板 Left-side supporting plate 钢丝网罩 Steel grille 大扁头自攻螺钉 Screw 顶盖板 Top cover plate 大面板 Front panel 冷凝器总成 Condenser assembly 右侧板 Right-side plate 小挖手..

• Page 144: Section Three Floor-standing Type Air Conditioner Exploded Pictures

  AUX air conditioner service manual Section three Floor-standing type air conditioner exploded pictures 1. ASF-H24B4/FS Indoor unit exploded picture..
• Page 145 AUX air conditioner service manual Detailed part list of ASF-H24B4/FS indoor unit Chinese Name Name Material Number 顶盖板组件 Top cover plate 电热窗盖板组件 Cover assembly for Electric-heater 右侧板组件 Right-side plate 底盘 Chassis 室内风叶电机组件 Indoor fan motor 控制器组件 Controller 电控盒组件 Electric controller box 离心风叶组件..
• Page 146 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 147 AUX air conditioner service manual Detailed part list of ASF-H24B4/FS outdoor unit Chinese Name Name Material Number 左侧支撑板 Left-side supporting plate 钢丝网罩 Steel grille 大扁头自攻螺钉 Screw 顶盖板 Top cover plate 大面板 Front panel 冷凝器总成 Condenser assembly 右侧板 Right-side plate 小挖手..
• Page 148 AUX air conditioner service manual 2. ASF-H41A5/C Indoor unit exploded picture..
• Page 149 AUX air conditioner service manual..
• Page 150 AUX air conditioner service manual Detailed part list of ASF-H41A5/C indoor unit Chinese Name Name Material Number 顶盖板组件 Top cover assembly 右侧板组件 Right-side plate assembly 底盘 Chassis 室内风叶电机组件 Fan motor assembly 电控盒组件 Electric controller box 控制器(主控板) Controller 离心风叶组件 Centrifugal fan blade 电控盒盖板组件..
• Page 151 AUX air conditioner service manual Outdoor unit exploded picture..
• Page 152 AUX air conditioner service manual Detailed part list of ASF-H41A5/C outdoor unit Chinese Name Name Material Number 面板网罩 Defense net of front panel 面板 Front panel 底盘组件 Chassis 储液桶 Liquid collector of compressor 压缩机 Compressor 阀板 Valve plate 截止阀 Dg8 Liquid valve Dg8 截止阀..

• Page 153: Chapter 4 The Disassembly And The Relating Attention Issues To The Part Of Aux Product

  AUX air conditioner service manual Chapter 4 The disassembly and the relating attention issues to the part of AUX product Section one the disassembly and the relating attention issues to the series products of 9000BTU~12000BTU Attention: Turn off the air-conditioner and pull out the plug of the power supply before the service.
• Page 154 AUX air conditioner service manual Part Operation Process Remark Electrical 1) Do No. “1” firstly; component 2) Pull out all tie-in connecting with PCB and the temperature sensor, etc.; 3) Screw off the screws and bolts as indicated in the picture. Untie the outdoor unit’s interconnection cord and..
• Page 155 AUX air conditioner service manual 2. Outdoor unit: Part Operation Process Remark General 1) Screw off one fastening bolt from the operation electrical box cover, and offload the box cover; 2) Pull out the interconnection cord from the electrical box;..
• Page 156 AUX air conditioner service manual Part Operation Process Remark Condenser 1) Do No.”1” and “2” firstly; 2) Screw off the two fastening bolts; 3) Weld off the inlet and outlet tube; 4) Offload the condenser. Compressor 1) Do No.”1” , “2”and “3” firstly;..

• Page 157: Section Two The Disassembly And The Relating Attention

  AUX air conditioner service manual Section Two the disassembly and the relating attention issues to the series product of 18000BTU~24000BTU Attention: Turn off the air-conditioner and pull out the plug of the power supply before the service. 2. Indoor unit:..
• Page 158 AUX air conditioner service manual Part Operation Process Remark Electrical 1) Do No. “1” firstly; component 2) Pull out all tie-in connecting with PCB and the temperature sensor, etc.; 3) Screws off the screws and bolts at the three positions indicated in the picture.
• Page 159 AUX air conditioner service manual 2. Outdoor unit Part Operation Process Remark General 1) Screw off one fastening bolt from the operation electrical box cover, and offload the box cover; 2) Pull out the connecting cord from the electrical box;..
• Page 160 AUX air conditioner service manual Part Operation Process Remark Compressor 1) Do “1” ,“2”, “3” firstly; 2) Open the cover of the compressor, and loosen the connecting cables; 3) Weld off the inlet and outlet tubes of the compressor; 4) Screw off three flat nuts;..

• Page 161: Chapter 5 Troubleshooting And Electrical Chart Of Aux Air Conditioner

  AUX air conditioner service manual Chapter 5 Troubleshooting and electrical chart of AUX air conditioner Section one basic faults diagnose process of 9000BTU~12000BTU products Troubleshooting Guide 1. The Foremost Inspecting Items ⑴The input voltage must be within +10% tolerance of the rated Voltage. If it is not the case, the air-conditioner will probably not work normally.
• Page 162 AUX air conditioner service manual 3. The Indoor Fan Motor Does Not Work ⑴Items a) Check if the indoor fan motor is connected correctly to the connector (CN8)? b) Check if the AC input voltage is correct? c) Check if the IC of indoor fan motor is connected correctly to the connector (CN2)? d) Check if the capacity of indoor fan motor is connected correctly to the connector (CN8)? ⑵Trouble shooting procedure..
• Page 163 AUX air conditioner service manual 4. The Outdoor Unit Does Not Work ⑴Items a) Check if the input voltage is correct? b) Check if the wire connection of the outdoor connecting terminal is correct? ⑵Trouble shooting procedure..
• Page 164 AUX air conditioner service manual 5. The Step Motor Does Not Work ⑴Items a) Check if the input voltage is correct? b) Check if the step motor controlling the up-down movement firmly connected to Cn2? ⑵Trouble shooting procedure 6. Heating Mode Can Work, But No Hot Air Blow ⑴Check if the set temperature is lower than the indoor temperature?
• Page 165 AUX air conditioner service manual 7. Remote Control Can Not Work Trouble shooting procedure 8. The Failure Analysis of the Main Parts..
• Page 166 AUX air conditioner service manual..

• Page 167: Section Two Basic Faults Diagnose Process Of 18000btu~24000btu Products

  AUX air conditioner service manual Section two basic faults diagnose process of 18000BTU~24000BTU products Troubleshooting Guide 1. The Foremost Inspecting Items ⑴The input voltage must be within +10% tolerance of the rated Voltage. If it is not the case, the air-conditioner will probably not work normally.
• Page 168 AUX air conditioner service manual 3. The Indoor Fan Motor Does Not Work ⑴Items ①Check if the indoor fan motor is connected correctly to the connector(CN8)? ②Check if the AC input voltage is correct? ③Check if the IC of indoor fan motor is connected correctly to the connector(CN2)? ④Check if the capacity of indoor fan motor is connected correctly to the connector(CN8)?
• Page 169 AUX air conditioner service manual 4. The Outdoor Unit Does Not Work ⑴Items ①Check if the input voltage is correct? ②Check if the wire connection of the outdoor connecting terminal is correct? ⑵Trouble shooting procedure..
• Page 170 AUX air conditioner service manual 5. The Step Motor Does Not Work ⑴ Items ① Check if the input voltage is correct? ② Check if the step motor controlling the up-down movement firmly connected to Cn2? ⑵Trouble shooting procedure 6. Heating Mode Can Work, But No Hot Air Blow ⑴..
• Page 171 AUX air conditioner service manual 7. Remote Control Can Not Work Trouble shooting procedure 8. The Failure Analysis of the Main Parts..

• Page 172: Section Three Electric Wiring Diagram Of Aux Air Conditioner

  AUX air conditioner service manual Section three electric wiring diagram of AUX air conditioner 1.7000~12000BTU Electric wiring diagram： ⑴ Indoor unit：..
• Page 173 AUX air conditioner service manual ⑵ Outdoor unit： Black Fan Motor Fa n Mo to r R e d C a pac it or Br ow n O rientation Wh it e Valve O v er curr ent Pr otector..
• Page 174 AUX air conditioner service manual 2.18000BTU Electric wiring diagram ⑴ Indoor unit Fro st Receiver panel Tran sform er Fan M ot or S tep Mot or Elim inating Ind ication panel P lug Fo rce Swi tch Controlli ng Pa nel..
• Page 175 AUX air conditioner service manual ⑵ Outdoor unit： Bla ck Fan Motor Fan Motor T e mp e r a t u r e B rown W hi te Cap acitor Sensor Or ie nta ti o n R ed..

• Page 176: Indoor Unit

  AUX air conditioner service manual 3.24000BTU Electric wiring diagram ⑴ Indoor unit： Fr o st Re ce ive r p an el Fa n Mo t o r Ste p Mo t or Tr an s fo r mer E limin at in g..
• Page 177 AUX air conditioner service manual ⑵ Outdoor unit： （Single pole AC. Contractor wiring diagram） Bla ck Fa n Mo to r Fa n mo to r Ca pa cit o r Wh it e Bla ck Re d Co mpressor..
• Page 178 AUX air conditioner service manual ⑶ Outdoor unit（Double pole AC. Contractor wiring diagram） Bl ac k Fan M oto r Fa n mo to r Ca pa c i to r R ed Re d Wh ite C om pressor..

• Page 179: Chapter 6 Introduction To The Regular Service Tools For Air-conditioner

  AUX air conditioner service manual Chapter 6 introduction to the regular service tools for air-conditioner The regular service tool and application 1. Vacuum Pump Vacuum pump is a device used in vacuumize for the mini type refrigerating equipment. The common vacuum pump in practice is the revolving blade type.
• Page 180 AUX air conditioner service manual There is only one cylinder installed in the Single-stage rotary Vacuum pump. Inside the cylinder, the rotor is eccentrically mounted inside the cylinder. There are two rotary blades fixed inside the rotor groove, and two of them are oppressed tightly to the surface of the cylinder by the central spring force and the centrifugal force produced in the process of rotation.
• Page 181 AUX air conditioner service manual knob of valve in counterclockwise direction may enlarge the size of the valve bore, and the corresponding tubing will get through with the gas path of the outdoor unit. The refrigerating system always gets through with the pressure gauge on the three-way mend valve without concerning the position of the knob.
• Page 182 AUX air conditioner service manual Picture6-4 Expander Picture6-5 Structure of expander 5. Tube-cutting knife The tube-cutting knife is usually used for cutting the copper tubes in different lengths and diameters when repairing or installing the air-conditioner. The types of the tube-cutting knife are various. The common structure is as Picture 6-6 shows.
• Page 183 AUX air conditioner service manual 6. Tube bender Tube bender is the tool used to change the configuration of the copper tube or process the copper tube in a certain figure. The types of the tube bender are various and it is applicable in bending the copper tube with the diameter less than 20mm.
• Page 184 AUX air conditioner service manual meter pen of the clamp meter can be freely used without consideration of the selection between positive and negative pole. When measuring the direct current voltage, turn the on-off switch to the category of the DCV (DC voltage) , pay attention to select a measurement range larger than the voltage to be measured, and confirm the polarity of the voltage to be measured.

• Page 185: Chapter 7 Failure Analysis And Inspection Of Electrical Control System

  AUX air conditioner service manual Chapter 7 Failure Analysis and Inspection of Electrical Control System Air conditioner can be controlled by both strong-current circuit control panel and weak-current electronic circuit control panel, control philosophies of which are different, so fault analysis procedures of the two types shall be described separately: Electrical system is the device to control and protect refrigerating system and fan system.
• Page 186 AUX air conditioner service manual (5)Heat pump air conditioner fails to heat If air conditioner can produce cooling air but fail to produce heating air, there must be some faults in magnetic reversing valve or switch. ① Magnetic loop of magnetic valve has burnt out or broken out because of: a、..
• Page 187 AUX air conditioner service manual lower than rated value; ② Over-current on compressor: check if heat protector on the compressor pump shell has broken off. Normally, heat protector will break off if current is excessively large. Heat protector of three phase motor is embedded in motor winding in pump shell. Check junction box on the pump shell by using universal meter, both for single phase and three phase motor;..
• Page 188 AUX air conditioner service manual three- phase. Single phase motor has two windings, i.e. startup winding and running winding. There’re 3 binding posts, in shell junction box of compressor. They are marked by A, B and C individually, representing running post, startup post and common post. R and S are series connection points of two windings, resistance value is sum of startup and running winding resistances;..
• Page 189 AUX air conditioner service manual winding touching shell can also occur in three phase motor. Check the faults with universal meter. For star- type connection motor, resistance can be measured individually; for triangle- type connection motor, three windings shall be disconnected before resistance values are measured.
• Page 190 AUX air conditioner service manual a、 Commute, demodulation, switch and stabilivolt diode. Remove diode from electrical panel, check its single phase conductivity with R×1K and R×100 of universal meter. Check method: contact two ends of diode with two handles of meter, record the resistance value, then change two handles with each other and measure again.
• Page 191 AUX air conditioner service manual noise can be heard. Cause analysis: according to clients description and phenomena analysis, we presumed that indoor motor couldn’t provide power properly; checked power voltage of indoor motor, it was 100V voltage when motor was switched off; when switched off, motor still moved slowly, and produced heat and..
• Page 192 AUX air conditioner service manual Reason Analysis: to check remote controller, point the remote controller to an ordinary radio and push any buttons on it, radio responded, so remote controller worked well, and there must be some faults in main control panel or receiver of remote controller of indoor unit. Opened outside cover of indoor unit to check 220V input power and 12V and 5V voltage, and found that they functioned properly;..
• Page 193 AUX air conditioner service manual when indoor temperature sensor and heat exchanger exceed 25 Celsius degree, fan produces gentle wind; when temperature exceeds 38 Celsius Degree, fan produces wind of set velocity. We checked and found that wind velocity is very low, and wind temperature is quite high, so fan works well. So we presumed that the sensor failed to reflect the correct temperature, and then indoor fan can’t run at set..
• Page 194 AUX air conditioner service manual the lamp was turned off, air conditioner functioned properly. When lamp was turned on, we checked receiver and found 2V AC electricity on the input end; when we turned out the lamp, and didn’t operate remote controller, there’s no voltage on receiver.
• Page 195 AUX air conditioner service manual on plastic panel may deform, so buttons may fail to work. In this case, control panel shall be replaced with same model product. Case 9 Compressor low -pressure can’t be started up Product Model：ASW-H12A4/HS Phenomena：Compressor of outdoor unit can’t be started up Cause Analysis: Indoor unit works well;..
• Page 196 AUX air conditioner service manual when we’re repairing air conditioners and avoid replicated work. Case 12 Transformer Failure Product Model：ASF-H18A4/FS Phenomena: air conditioner didn’t function after it was turned on Cause Analysis: checked power supply, there’s 220V input power, so power supply circuit has no problem.

• Page 197: Chapter 8 Troubleshooting Guide For Refrigerating System

  AUX air conditioner service manual Chapter 8 Troubleshooting guide for Refrigerating System Refrigerating system faults are very common to air conditioners; faults are various but they still have some rules and also many maintenance experiences for reference. Troubleshooting steps here for refrigerating system are not a must, but can be followed to eliminate faults.
• Page 198 AUX air conditioner service manual there is some leak source, refrigerant will leak out and air conditioner can’t cooling proper or absolutely stop refrigerating. Leakage sources locate mainly on welds of evaporator, condenser, and capillary, return gas and discharge tube of compressor, flare mouth, copper nut, connection tubes and etc.
• Page 199 AUX air conditioner service manual pressure hose with vacuum pump and vacuum the system. ②Tighten thimble head; Discharge air in the hose with refrigerant steam in system or refrigerant in the bottle. If small refrigerant bottle has been connected with hose and vacuum pumping has been done, there’s no need to discharge air.
• Page 200 AUX air conditioner service manual shall be no less than 10℃ and in heating operation, temperature difference shall be over 15℃; ⑤ High pressure: High pressure value of cooling operation shall be about 1.5~1.9MPa; ⑥ Weighing: When we fill the air conditioner with refrigerant, we shall weigh refrigerant with electronic weighing appliance if available.
• Page 201 AUX air conditioner service manual Pollution degree of refrigerating system can be classified as: slightly polluted and seriously polluted. When system is slightly polluted, condensed oil in it has not been polluted completely, and if refrigerant and lubricant is released from line of compressor, it is transparent and will become light yellow(normally they should be in white) if tested with litmus paper.
• Page 202 AUX air conditioner service manual Generally, system shall be purged under a pressure of 0.6MPa which can be pressurized with refrigerating compressor, nitrogen bottle or air compressor (compressed air can’t be used in Freon system). System shall be blown in sections, with dirt outlet set on the lowest point of each section.
• Page 203 AUX air conditioner service manual ③、Weld high pressure tube first, and then the middle one of three low pressure tubes, finally left and right tubes; ④、Select proper welding machine, flame shall be adjusted and can weld the valve immediately. Pack the valve body with wet towel to avoid burning rubber and nylon sealing elements in it and causing the leakage of four-way valve.
• Page 204 AUX air conditioner service manual burned or components can’t start up. So clearance scope between pistol and cylinder is very small. For Diaφ50mm cylinder without pistol ring, fit clearance shall be within 0.011~0.018mm. If pistol or cylinder wears out severely, when pistol compresses and exhaust the gas, a part of gas in cylinder will leak into pump shell through clearance, so compressor can reach its original discharge capacity;..
• Page 205 AUX air conditioner service manual Symptom is: when air conditioner is switched on, fuse protector breaks or air protector trips immediately. There’re three reasons for this symptom: a) Because motor stator windings have burn out, and insulation layer of electromagnetic loop has been broken and windings touch the motor shell and are short circuited.
• Page 206 AUX air conditioner service manual Cause Analysis: turned on the air conditioner, it could run normally. Checked filter of indoor unit and heat exchangers, and found that they were quite clean and wouldn’t impact the cooling efficiency. Checked capacitors and all parameters of indoor and outdoor fans, voltage was 220v, current was 13.5A, low pressure was 0.4MPa and there’s no extension line, outdoor compressor also run normally,..
• Page 207 AUX air conditioner service manual analyze this phenomenon, we shall check whether air flow of indoor unit is sufficient. If it is in normal condition, check whether there’s secondary flow restriction; judge the fault by analyze phenomena carefully. Case 4: Filter of outdoor unit was blocked by dirt Unit Model：ASW-H18A4..
• Page 208 AUX air conditioner service manual conditioner run 5 minutes, and evaporator of indoor unit was frosted, so we presumed that refrigerant was not sufficient; we checked and found that low pressure was 3KG. Turned off air conditioner, checked indoor & outdoor units and connection tube and found oil stain on the junction of low pressure copper tube.
• Page 209 AUX air conditioner service manual condenser, so refrigerant leaked out. Solution: repair-welded leak source and added refrigerant Experience Conclusion: when air conditioner is running, system pressure is zero, we can judge that refrigerant leaks out; generally, oil stain can be seen on leak sources. Maintenance personnel shall be familiar with blinking conditions of indicator.
• Page 210 AUX air conditioner service manual tubes, the one connecting discharge pipe of compressor was hot, and other three were also a little hot. Turned on the air conditioner in heating mode, heating efficiency was also unsatisfactory. So we were sure that four-way valve had some problems.
• Page 211 AUX air conditioner service manual Experience Conclusion: valve is too tight, so system is obstructed and then frosted. When refrigerating efficiency of new unit was unsatisfactory, do not add refrigerant without careful consideration. Case 15 Air conditioner was blocked by dirt Unit Model：ASW-H41A5/A..
• Page 212 AUX air conditioner service manual Phenomena：Refrigerating efficiency was unsatisfactory, outdoor unit stopped to run after it operated for some time. Cause Analysis: air conditioner was installed last year, and failed to run properly since then. Maintenance personnel checked the air conditioner many times, and had following data: running current was 12.5A, pressure was 5kg.f/com2, inlet wind temperature was 12 Celsius Degree, and..
• Page 213 AUX air conditioner service manual Case 19 Water entered the system in installation Unit Model：ASW-H12A4/H Phenomena：Air conditioner could be turned on but couldn’t produce cool air Cause Analysis: run air conditioner for 10 minutes, it could cool normally, pressure and current was normal;..

• Page 214: Chapter 9 Maintenance Cases Of Noise And Water Leakage Of Ac

  AUX air conditioner service manual Chapter 9 Maintenance Cases of Noise and water leakage of AC Section one cases of air conditioner noise reduction Air conditioner noise is a common problem seen in our maintenance work, causes of which shall be paid attention to.
• Page 215 AUX air conditioner service manual presumed that fault was on bearing bush of left blade. Replaced bearing bush, noise could still be heard. Maintenance personnel checked wind blades and found that they’re installed left to the center and blade axis touched rubber seat of bearing and produced noise when running.
• Page 216 AUX air conditioner service manual Experience Conclusion: the said noise is wind sound, which isn’t beyond noise standard. In such case, do not change motor or controller without careful consideration. Case 4: Noise produced by friction between fan blade and wind baffle Unit Model No：ASF-H24B4/FSY..
• Page 217 AUX air conditioner service manual Unit Model: ASW-12A4/A Phenomena：Indoor Noise Cause Analysis: the air conditioner was newly installed; according to client, noise of indoor unit was loud. Maintenance personnel of service network visited the client and checked the air conditioner many times and believed the appliance worked well, so client was unhappy.
• Page 218 AUX air conditioner service manual tube and sheet-metal. We should install damp piece or insulation sleeve. ⑶ Vibration of compressor causes collision between copper tubes. Install insulation to isolate two tubes. In such case, we should explain to client that it’s not air conditioner fault, it is caused by improper installation and can be handled easily.
• Page 219 AUX air conditioner service manual of two back branches was obviously lower, so system was blocked when it was welded. Released refrigerant, welded the system again and fault was eliminated. Solution: welded the copper tube again, air conditioner run normally Experience Conclusion: generally, air-stream sound was produced by over throttling, so we shall analyze causes for throttling.

• Page 220: Section Two Maintenance Cases For Water Leakage Of Air Conditioner

  AUX air conditioner service manual Unit Model: ASW-H24A4/TB Phenomena：Outdoor unit made loud noise according to client Cause Analysis: according to client, noise made by air conditioner was not so loud in the daytime, but it was much louder at night. We turned on air conditioner; outdoor unit noise could be heard in the room.
• Page 221 AUX air conditioner service manual be in low temperature, while those with small refrigerant flow will be in higher temperature, so temperature difference between two circuits will be relatively large, which will produce a large number of condensate in the former fins. Condensate is blown outside the outlet with wind. In addition, cold and hot air meet in wind pipe and steam condenses in air pipe, causing water leakage.
• Page 222 AUX air conditioner service manual Phenomena：Indoor unit leaked water Cause analysis：air conditioner had been used for two years and never leaked water before, so it was not caused by improper installation, it was possibly caused by obstruction in water drain pipe. When air conditioner worked for a long time, condensate leaked from notch of basement connection tube.
• Page 223 AUX air conditioner service manual Cause analysis：We turned on air conditioner, found that air pipe of indoor unit leaked, especially on left and right ends. This air conditioner adopted four-folded evaporator, two water collection channels: upper and down, upper channel was on the back of evaporator, where a water barrier guided water to upper channel, condensate flew from two ends of water barrier, which were affixed with sponge, to indoor unit.
• Page 224 AUX air conditioner service manual Solution: adjusted position of water drain tube.。 Experience Conclusion: pay attention to details during installation and have water drain test after installation. Case 7: Water Drain Tube wasn’t wrapped tightly enough and leaked condensate Unit Model: ASW-07B4/HA Phenomena：..
• Page 225 AUX air conditioner service manual Phenomena：Air conditioner leaked water after running for some time, evaporator was frosted or frozen. Cause Analysis: according to client, indoor unit leaked water. We turned on air conditioner and observed, after 10 minutes, water started to be blown from indoor fan. Disassembled shell, we found that 2-3 U-shaped fins near evaporator were very cold and covered with condensate, and other fins were not so cold;..
• Page 226 AUX air conditioner service manual and found that evaporator and basement were assembled properly, but there’s a leak between left bracket and left fin of evaporator, which leaked air. Affixed the leak with sponge and turned on air conditioner again. Water leakage was reduced, but fault hadn’t been eliminated. Opened indoor unit panel again, and checked temperature of different streams of evaporator and U shaped fins and found that temperature difference was very large, so flow deflected in evaporator.

• Page 227: Appendix 1 Introduction To The Fault Display Code Of Aux Air Conditioner

  AUX air conditioner service manual APPENDIX 1 Introduction to the fault display CODE of AUX air conditioner 1. 70S .100S.120S.45T.50T.60T45TA.50TA.60TA.70T1，when the faults happen, the LCD panel displays “fault” and the corresponding code. ⑴ The fault of the indoor plastic temperature sensor：..
• Page 228 AUX air conditioner service manual short circuit. ⑷ Fault 24 No load. ⑸ Fault 26 Outdoor over-current protection. ⑹ Fault 28 Outdoor voltage abnormal. ⑺ Fault 29 Outdoor electric source’s instant off. ⑻ Fault 2A Outdoor refrigeration’s overloading protection. ⑼..
• Page 229 AUX air conditioner service manual The “running” light and “swing” light are twinkling and last for 0.5/0.5 second, the other indication lights are invariable, and the system turns off. 4. ASF-H24B4/B, ASF-H41A5/B faults display and protection display: ⑴ Fault of the Indoor temperature sensor：..
• Page 230 AUX air conditioner service manual When the faults happen, the LED digital screen of the operation panel displays the corresponding code. ⑴ Fault of The indoor temperature sensor： System turns off, and the LED digital screen of the operation panel displays “E1”.
• Page 231 Plastic temp. sensor is “E1” abnormal Copper temp. sensor “E3” is abnormal (indoor) 11. All of the other E series except EA、EC、EM、EY、EZ、EAA、EAD: The display Fault source Display mode precedence level PG motor feedback is Timing light twinkles 4 times in..
• Page 232 AUX air conditioner service manual 12. Faults display of 18000BTU~24000BTU wall unit series air-conditioner： Non-digital tube displays: Fault source Display mode The display Appearance precedence level PG motor feedback is Timing light twinkles 1 System turns off abnormal time in every 8 seconds Plastic temp.

• Page 233: Appendix 2 Schematic Diagrams Of Some Controller Panels

  AUX air conditioner service manual APPENDIX 2 Schematic Diagrams of Some Controller Panels 1. Schematic Diagram of Controller Panel of E Series Air Conditioner with Display Screen (FUJITSU Chip) C N 9 F U S E Z N R F A C 3 .1 5 A /2 5 0 V..
• Page 234 AUX air conditioner service manual 2. Schematic Diagram of Controller Panel of EA Series Air Conditioner (Motorola Chip) CN10 VH-3 Room Fan Valve ABC EFG Out Fan VH-5 1.5U/450V DJR COMP XH-10 XH-3 Ò£¿Ø R103 100-1/2w CRV2 15K/681 0.1U/275V 9012..
• Page 235 AUX air conditioner service manual 3. Schematic Diagram of Controller Panel of HS Series Air Conditioner (Motorola Chip) CN10 WFAN CN11 ºì/°×Ïß VH-5 ºì/ºÚÏß COMP STF WFAN ABC EFG µç¼ÓÈÈÔ¤Áô ¸ºÀë×ÓÔ¤Áô 1.5U/500V XH-13 R103 CRV2 100-1/2w 0.1U/275V E101 R102 470U/25V..
• Page 236 AUX air conditioner service manual 4. Schematic Diagram of Controller Panel of E Series Air Conditioner with Display Screen (with Renesas Chip) CN10 VH-5A-3 CN11 TJC2A-2A CRV1 104/63V 0.1u/250V/K 1.5u/450V CRV2 R101 100/2W AT24C02A X2/0.1u FUSE 102/63V 3.15A/250V/F BT136 R102..

• Page 237: Appendix 3 Conversion Table Of Major Units

  AUX air conditioner service manual APPENDIX 3 Conversion Table of Major Units 1. Conversion Table of Pressure Units Unit mmHg kgf/cm 1.02×10 9.87×10 7.5×10 1.450×10 9.8×10 9.68×10 7.36×10 1.421×10 kgf/cm 1.46885 × 1.013×10 1.033 7.6×10 1.93285 × mmHg 1.333×10 1.36×10 1.316×10..
• Page 238 AUX air conditioner service manual 4. Heat Conductivity Factors of Several Common Used Material Material λ（kJ/m·h·℃） Material λ（kJ/m·h·℃） Copper 1382 Cork 0.17-0.25 Aluminum Air Interlayer 0.25 Steel Water Frosty layer Glass 2.7-2.9 Fibre Glass 0.17-0.21 Saw Timber 0.25-0.34 Glass Cloth 0.13..
• Page 239 AUX air conditioner service manual Refrigeration Amount（%） COP（%） 92.5 Lubricate Type Mineral Oil Lubricate Inter-solubility Good Fair Fair..