Air Conditional Service Manual
Contents
1. AKIRA makes life better Air Conditional Service Manual bobinas 0HOJMHOTEeKaA TEXHHYECKOH JO0KYMeHTANHH http splitoff ru tehn doc html KATAJIOTH HHCTpyKUHH CepBHCHbIE MAHYAJIbI CXeMbI makes life better Model AC W17CL Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 3 CONTENTS TECHNICAL SPELTRIORTION Dee re E ee 4 PRAURBOE PRODU rare ee oa 5 PRINCIPLE OFOP ERA TICON nennen ehe ansehe 6 SYSTEM DIRCE A e PP E EE iano 7 E PCODED Y IEN e E E A ana 8 IA A A 9 ORBRATI ON STEP nea 12 TROUBLE STIOOTENG ea I iron 18 CARCUIE DIAGRAM AA E E ya ce pests yas A ee 27 Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better TECHNICAL SPECIFICATION MODEL COOLING Single phase 50Hz 230V 5000 2200 10 5 R22 1 38 780 ITEM FUNCTION Power supply Capacity W Rated input power W Rated current A Refrigerant Refrigerant charge kg Recirculated air flow m h Fan motor speed r min 220V gt DS S O N O1 dh on O1 N Fan motor output power W 115 130 Fan motor capacitor F 223 5 104 Aluminum foil and copper tubes 4 2 0mm 3 5W Manual control Fan diameter amp length Heat exchanger No of rows and fin spacing Louver motor Control mode Noise level dB A Control of cooling medium Type Totally enclosed and rotary Model SHX33SC4 U Power2. generated during operation of the air conditioner metal bumping noise generated Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 23 Trouble shooting for A Single Phase Asynchronous Motor Failure of motor to start after power on in spite of 2 normal supply voltage Difficulty in starting in spite of capability of being started at no load or with an external force Lead broken Primary winding or secondary winding broken Contacts of starting switch failing to be closed or poor contact Capacitor open circuited Bearing blocked Bearing damaged Bearing improperly fitted Setting of grease Foreign matter entrapped in the bearing Rubbing between the stator and the rotor e Bearing worn e Shaft bent Overloaded Secondary winding broken or circuit discontinued Poor contact of starting switch Capacitor open circuited Locate the broken point with a multi meter and repair Determine the fault with a multi meter and replace the winding Inspect the starting switch and make adjustment Replace the capacitor Replace the bearing e Refit the bearing e Renew grease e Clean the bearing File away the abnormally projecting area of lamination Adjust the concentricity Reduce the load or select a motor with greater capacity for proper matching Inspect and determine the fault with a multi meter Repair or replace the winding
3. W 1875 Operating current A Restriction by capillary Type of protector Internal installed Starting mode Capacitor run Actuating temperature of protector Aluminum foil and copper tubes No of rows and fin spacing 3 1 8mm Fan diameter amp height mm 392 85 Noise level dB A 65 Width mm Depth mm 756 Height mm 436 Heat exchanger oo gt e Compressor Net weight kg Controlled temperature range amp accuracy 15 30 1 5 Service ambient temperature 18 43 Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 5 FEATURES OF PRODUCT Models AC W17CL has their indices remarkably improved as a whole and gained the lead among the products of the same kind in the market A brief account of their features is given below 1 2 3 4 Fine Appearance The design of appearance has changed from the dull design style of traditional window type air conditioners An internationally prevailing streamline design is employed for the panels Air outlet vents are provided in conjunction with the automatically swinging vertical louvers Low Noise Low speed low noise and large diameter impeller fans are used The indoor and outdoor fans are driven by the same motor The noise generated indoors and outdoors is notably reduced by optimized parameters of the fans and air ducts in addition to other silencing and damping measures Which live up
4. Attain proper matching as per properties of motors Measure the voltage with voltmeter and make calibration Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 25 Serious heating of motor after starting and a too great input power Fuse blown after power on unable to start the motor 7 A too load noise generated during running of motor Abnormal vibration of Model No AC W17CL Version 1 0 Motor overloaded Winding short circuit earthed Rubbing between the stator and the rotor Damaged or defective bearing Winding short circuited or earthed Outgoing lead earthed Capacitor short circuited Winding short circuited or earthed Starting switch damaged Bearing damaged or inadequately lubricated A too large axial clearance Foreign matter entrapped in motor A bent shaft Rotating part rubbing against the stator Rotor being out of balance Pulley being out of balance A Bent shaft extension Adjust the load of motor Inspect and determine the fault with a multi meter and service the faulted part Check the shaft is not bent and the stop groove of the end cover is not loose Ensure the concentricity Service or replace the bearing Measure the resistance and eliminate the fault Correctly connect the lead out Replace the capacitor Measure the resistance and eliminate the fault Repair or replace the switch Repair or replace t
5. dust on the filter and replace it after accumulates on the air filter of air it is dried conditioner through extended operation Dust accumulated on fins of the air Remove dust with a long hair brush or conditioner resulting in insufficient air compressed air flow Capillary in the heating circulation system Re evacuate and fill refrigerant or replace the clogged causing malfunctioning of the capillary and filter etc system or reduction in heating effect Piping in the system improperly welded or Do patch welding after leak test and replenish copper tubes damaged resulting in leakagelrefrigerant Damaged capacitor of the fan or its poor Inspect the power line switches contact or damaged motor of the fan or temperature controller and terminal block failure of power line to the fan resulting etc and replace the capacitor or motor in failure to operate or reduced speed of the fan and hence unavailability of cool air or poor cooling effect Failure of compressor due to too high orFurnish a voltage regulator or replace any too low voltage or incorrect wiring of damaged part q O g 3 fd O a O ON gt q D ON 5 yo ON 5 Q D i O Te E O gt O ON 5 q O a power line or discontinuity of the circuit or any fault in compressor itself e g motor burned or seized or valve plate damaged A too high heating load Check for the expe
6. partition plate The front partition plate can be dismantled by unscrewing the three screws fixing it 13 Removal of condenser The condenser can be dismantled by unscrewing the six screws fixing it 14 Removal of propeller fan Unscrew the nut that fastens the propeller fan to the motor shaft and dismantle the fan Model No AC W17CL Version 1 0 Bce KaTaJorH n HHeTrpyKuny 31ecb http splitoff ru tehn doc html makes life better 17 15 Removal of the back partition plate Unscrew the screws holding the back partition plate and the base plate together and remove the back partition plate 16 Removal of fan motor assembly The fan motor assembly can be taken out by removing the four nuts connecting the motor to the base plate 17 Disconnect the piping and the compressor Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpyKumn 31ecb http splitoff ru tehn doc html makes life better 18 THROUBLE SHOOTING 1 Air conditioner doesn t work s Check wiring according to the electric diagram eliminate short circuit and replace the fuse Power plug improperly connected or poor Correct poor connected and plug the power connected plug properly into the socket Erroneous wiring Check wiring according to the electric diagram and rewire correctly Ag un D D oO ES S O lt Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb htt
7. Inspect and determine the fault with a multi meter Make adjustment Replace the capacitor Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html 24 makes life better Failure of motor to run to the normal speed Quick heating of motor after being started and even winding burned Model No AC W17CL Version 1 0 A too low supply voltage Primary winding short circuited or incorrectly wired Bearing damaged or inadequately lubricated Shaft bent Starting switch remaining closed A too high load Primary winding short circuited or earthed Secondary winding short circuited or earthed Primary and secondary windings displaced each other by mistake Contacts of starting switch falling to open after starting A too high or too low load of motor Incorrect voltage Adjust the supply voltage to the rated value Correct the end wiring or replace the winding Replace the bearing or clean it and renew or replenish grease Straighten it Adjust or repair the switch Use a motor with greater capacity Inspect and determine the fault with a multi meter Repair or replace the winding Inspect and determine the fault with a multi meter Repair or replace the winding Measure the resistance or check the code at the connections and correct wiring Measure the total current or secondary circuit current Service or replace the starting switch
8. cted heating load 4 way valve fault Replace the 4 way valve Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 22 5 Compressor Stops Immediately after its Starting Symptom rise in condensing pressure and actuation of the compressor overload protector and shutdown of the compressor in particularly serious case A too low supply voltage or a too high supply voltagelFurnish a voltage regulator which exceeds the rated voltage by 10 causing an increase in current hence actuation of the overload protector and shutdown of the compressor Compressor fault Replace compressor Compressor stops right after 6 Water Leakage Water leakage at The outdoor side higher than Reinstall the air conditioner and he indoor side or at the same height as the ensure a correct mounting angle indoor side 7 Abnormal Noise and Vibration A too small clearance between the top of the Adjust the clearance propeller fan impeller and its case leading to a louder operation noise of the fan Foreign matter entrapped in the fan Stop the machine and remove the foreign matter The capillary and High Pressure and Low Secure any loose components Pressure piping not well secured causing bumping and rubbing noise 3 as z gt TD a D a rs O lt Internal parts of the compressor damaged and Replace the compressor
9. he bearing Set proper clearance Disassemble the motor and remove the foreign matter Straighten or replace the shaft Inspect and determine the fault and then service the related part Calibrate 1t for dynamic balance Calibrate it for static balance Straighten or replace the shaft Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better Bearing damaged Improper mating between inner and outer rings Too much or too little or too dirty grease 26 Replace the bearing Make the inner and outer rings well mated and ensure their mating areas do not slip relatively Replenish or renew the grease and ensure the packing amount makes up no more than seventy percent of the bearing volume The above table shows that the common troubles of a single phase asynchronous motor are caused either electrically or mechanically The electrical problems are related to its winding capacitor starting switch and internal wiring etc While the mechanical ones related to its bearings shaft lubrication and fitting etc Before servicing inspect the equipment and find out the cause of any trouble and determine the solution so that the problem can be solved properly Nevertheless some faults are due to more than one factor and this necessitates further study and improvement and summing up of experience in practice Besides certain technical procedures and key points for operation s
10. hould be followed and necessary repair tools and testing instruments furnished at the maintenance points in order to effectively service motors of domestic electric appliances like the single phase asynchronous motor Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 27 CIRCUIT DIAGRAM SAI SELECTOR SA 2 BOAT SWITCH KT THERMOSTAT MF FAN MOTOR ML LOUVER MOTOR MC COMPRESSOR Ci CAPACITOR XP PLUG SA2 GY no BK SA1 O Lema psc 1 La C RD C m GNYE _ e pa E 2 RD S Ros 0 MF WH PE 4 BK MED BU M Ci 5 BNHI C RD BN pE GNYE XP L pU 230V 50Hz N GNYE PE bobinas OnMO1MOTeKa TEXHH4eCKON JO0KYMeHTaANHH http splitoff ru tehn doc html KATAJIOTH HHCTPYKUMH CepBHCHbIE MAHYAJIbI CXeMbI
11. ir flow Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html AKIRA makes life better 8 EXPLODED VIEW Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 9 PART LIST Three direction connecting pipe Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 10 641046 Front partition plate 641097 Louver motor Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 11 1 Temperature control 641090 WKBOALA 15 30 O Sie ao xs sawa TT Lower motor 660097 tsc mn Fanetassemby ono Fan motor capacitor 641094 CBB6ITA 8 rasovac Centa AC EE roper Jonas CET am TT if neo estos Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 12 OPERATING STEP 1 Removal of panel assembly Take out the filter and unscrew two screw left side amp right side of the groove Then release the detent between the panel and the frame Now the panel can be removed 2 Removal of frame Unscrew the two screws at the lower back of the frame and remove the frame by holding it while grabbing the handle of the bottom plate and pulling the
12. latter out by force Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 13 3 Remove Vertical louvers 4 Removal of electrical box unit Unscrew the three screws at the electrical box unit remove it Disconnect the wires and earthing conductor 5 Removal of front cover plate Unscrew the eight screws at the front cover plate and remove it Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 14 6 Removal of back cover plate Unscrew the four screws at the back cover plate and remove it 7 Remove the bracing 8 Removal of evaporator assembly Unscrew the two screws at the wind path partition plate and remove it then take out the evaporator assembly from the wind path partition plate Model No AC W17CL Version 1 0 Bce KaTaJorH n HHeTrpyKuny 31ecb http splitoff ru tehn doc html makes life better 15 9 Removal of wind path partition plate The wind path partition plate can be taken out by removing the screw connecting the win path partition plate and base plate 10 Removal of centrifugal fan Unscrew the bolt at the centrifugal fan and remove It 11 Remove volute and water collecting plate Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 16 12 Removal of front
13. or the capillary and filter etc reduction in cooling effect Piping in the system improperly welded or copperDo patch welding after leak test and tubes damaged resulting in leakage of refrigerantreplenish refrigerant Damaged capacitor of the fan or its poor contact Inspect the power line switches or damaged motor of the fan or failure of power temperature controller and terminal block line to the fan resulting in failure to operate or etc and replace the capacitor or motor reduced speed of the fan and hence unavailability of cool air or poor cooling effect Failure of compressor due to too high or too low Furnish a voltage regulator or replace any q O 5 GQ O a O ON Q ON ci yo ON Q e D _ D a E q O fd O ON Q O a voltage or incorrect wiring of power line or damaged part discontinuity of the circuit or any fault in compressor itself e g motor burned or seized or valve plate damaged A too high cooling load Check for the expected cooling load A too high set temperature Adjust the set temperature Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 21 4 Poor Heating or no heat during Cooling Operation Temperature controller damaged or Replace temperature controller malfunctioning Circulating air flow decreased dust Wash off
14. p splitoff ru tehn doc html makes life better 19 2 Both fan and compressor or either of them doesn t work when operation mode is set to cooling or heating or ventilation A too high set temperature For cooling Lower the set temperature For cooling operating or too low set temperature For operating Higher the set temperature For heating operating heating operating Compressor seized or winding open or Replace the compressor short circuited HV or LV side broken down A too low or too high voltage Turn off the machine and turn it on again when normal voltage 1s available m O gt O un Lv O ja E O un un oO E Q D E Compressor overload protector actuated Turn off the machine and turn it on again whe the compressor is cooled down Provide unit With protection against sunlight such as an awning The fan motor does not work Model No AC W17CL Version 1 0 Bce KaTaJorH n MHCTpPyKumm 31ecb http splitoff ru tehn doc html makes life better 20 3 Poor Cooling or no cool during Cooling Operation Temperature controller damaged or malfunctioning Circulating air flow decreased heat exchanger ash off dust on the filter and replace it effect of evaporator reduced and hence cooling after it is dried effect also reduced when dust accumulates on the air filter of air conditioner through extended operation clogged causing malfunctioning of the system
15. rant in the indoor heat exchanger evaporates absorbing heat and reducing the room temperature The evaporated refrigerant vapor then returns to the outdoor unit where it is sucked into the compressor again and discharged from the same after being compressed By cycling in this manner the purpose of reducing the room temperature is fulfilled After the power supply is switched on and the machine is set to HEAT mode the coil of the reversing valve is energized With the compressor being operating the high temperature high pressure refrigerant vapor discharged from it first comes to the heat exchanger of the indoor unit where it is cooled releasing heat and making the room temperature rise The cooled high pressure refrigerant is throttled in the outdoor unit and returns to the compressor after evaporation By cycling in this manner the purpose of increasing the room temperature is fulfilled Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better SYSTEM DIAGRAM 1 Indoor heat exchanger 1 2 A VU 2 Fan 3 Fan motor 4 Fan 5 Outdoor heat exchanger 6 Compressor 2 7 Capillary The direction of refrigerant flow gt The direction of a
16. to the national loading standard High Efficiency and Energy Saving Bridge type finned heat exchangers ribbed copper tubes and hydrophilic aluminum foil and other advanced technology are employed for the novel window type air conditioners so that their heat exchange efficiency is significantly raised while their volume reduced High Safety The novel window type air conditioners are design strictly in compliance with the requirements of the new National Standard GB4706 32 and the CE Certification Standard for room air conditioners and appropriate measures such as earthing of the compressors and improving the tensile strength of the power cords are taken with a view to better ensuring safety and reliability Moreover the performance of the novel window type air conditioners has been improved and their service life extended by use of superior quality and high precision technology and assembly Model No AC W17CL Version 1 0 Bce KaTaJorH n HHCTpyKIHH 31ecb http splitoff ru tehn doc html makes life better 6 PRINCIPLE OF OPERATION After the power supply is switched on and the machine is set to COOL mode with the compressor being operating the low temperature and low pressure refrigerant vapor is sucked into it and then compressed into high temperature high pressure gas The gas is cooled into liquid by the air through the outdoor heat exchanger The liquid comes into the indoor unit after being throttled by the capillary The refrige
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