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15.1.1 Relationship Between the Condition of the Air Conditioner and Pressure and

Electric Current

Cooling Mode

Heating Mode

Condition of the

air conditioner

Low Pressure

High Pressure

Electric current

during operation

Low Pressure

High Pressure

Electric current

during operation

Insufficient refrigerant

(gas leakage)



Clogged capillary tube or

Strainer





Short circuit in the indoor unit





Heat radiation deficiency

of the outdoor unit





Inefficient compression









• Carry out the measurement of pressure, electric current, and temperature fifteen minutes after an operation is started.

Содержание CS-E12QB4RW

Страница 1: ... leakage during the installation or repairing of refrigerant circuit This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by ...

Страница 2: ...er Control 44 12 9 Auto Restart Control 45 12 10 Indication Panel 45 12 11 Drain Pump Control Operation 45 13 Protection Control 46 13 1 Protection Control For All Operations 46 13 2 Protection Control For Cooling Soft Dry Operation 48 13 3 Protection Control For Heating Operation 49 14 Servicing Mode 51 14 1 Auto OFF ON Button 51 14 2 Remote Control Button 52 14 3 Outdoor PCB Test Run Operation F...

Страница 3: ...D Otherwise it may cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint cable for indoor outdoor connection cable Use the specified Indoor Outdoor connection cable refer to installation instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor outdoor connection Clamp the cable so that no external force will be acted on the t...

Страница 4: ...ypically the melting point is 50 F 70 F 30 C 40 C higher Please use a high temperature solder iron In case of the soldering iron with temperature control please set it to 700 20 F 370 10 C Pb free solder will tend to splash when heated too high about 1100 F 600 C 7 Power supply connection to the room air conditioner Use power supply cord 3 x 1 5 mm 2 1 5HP 3 x 2 5 mm 2 2 0HP type designation 60245...

Страница 5: ...door Noise H L QLo Power Level dB 51 42 39 51 42 39 dB A 49 49 Cooling Outdoor Noise H L QLo Power Level dB 64 64 kW 0 85 4 00 5 40 0 85 4 00 5 40 BTU h 2900 13600 18400 2900 13600 18400 Capacity kcal h 730 3440 4640 730 3440 4640 Running Current A 4 80 4 60 Input Power W 210 1 05k 1 68k 210 1 05k 1 68k W W 4 05 3 81 3 21 4 05 3 81 3 21 BTU hW 13 81 12 95 10 95 13 81 12 95 10 95 COP kcal hW 3 48 3...

Страница 6: ...m 3 min ft 3 min 7 3 260 Lo Heat m 3 min ft 3 min 8 8 310 Cool m 3 min ft 3 min 8 8 310 Me Heat m 3 min ft 3 min 10 2 360 Cool m 3 min ft 3 min 10 5 370 Hi Heat m 3 min ft 3 min 11 7 415 Cool m 3 min ft 3 min 11 2 400 Indoor Airflow SHi Heat m 3 min ft 3 min 12 5 440 Cool m 3 min ft 3 min 35 3 1245 35 3 1245 Outdoor Airflow Hi Heat m 3 min ft 3 min 35 3 1245 35 3 1245 Control Device Capillary Tube...

Страница 7: ...erial Air Filter Type Power Supply Outdoor Power Supply Cord A Nil Thermostat Electronic Control Protection Device Electronic Control Dry Bulb Wet Bulb Maximum C 32 23 Cooling Minimum C 16 11 Maximum C 30 Indoor Operation Range Heating Minimum C 16 Maximum C 46 26 Cooling Minimum C 5 Maximum C 24 18 Outdoor Operation Range Heating Minimum C 15 1 Cooling capacities are based on indoor temperature o...

Страница 8: ...o Power Level dB 54 44 41 54 44 41 dB A 48 43 48 43 Cooling Outdoor Noise H L QLo Power Level dB 62 57 62 57 kW 0 90 5 00 7 10 0 90 5 00 7 10 BTU h 3070 17100 24200 3070 17100 24200 Capacity kcal h 770 4300 6110 770 4300 6110 Running Current A 6 70 6 50 Input Power W 330 1 51k 2 45k 330 1 51k 2 45k W W 2 73 3 31 2 90 2 73 3 31 2 90 BTU hW 9 30 11 32 9 88 9 30 11 32 9 88 COP kcal hW 2 33 2 85 2 49 ...

Страница 9: ...0 Cool m 3 min ft 3 min 8 3 290 Lo Heat m 3 min ft 3 min 8 7 310 Cool m 3 min ft 3 min 10 0 350 Me Heat m 3 min ft 3 min 10 5 370 Cool m 3 min ft 3 min 11 7 415 Hi Heat m 3 min ft 3 min 12 5 440 Cool m 3 min ft 3 min 12 5 440 Indoor Airflow SHi Heat m 3 min ft 3 min 13 3 470 Cool m 3 min ft 3 min 46 7 1650 48 4 1710 Outdoor Airflow Hi Heat m 3 min ft 3 min 46 7 1650 48 4 1710 Control Device Expans...

Страница 10: ...erial Air Filter Type Power Supply Outdoor Power Supply Cord A Nil Thermostat Electronic Control Protection Device Electronic Control Dry Bulb Wet Bulb Maximum C 32 23 Cooling Minimum C 16 11 Maximum C 30 Indoor Operation Range Heating Minimum C 16 Maximum C 46 26 Cooling Minimum C 5 Maximum C 24 18 Outdoor Operation Range Heating Minimum C 15 1 Cooling capacities are based on indoor temperature o...

Страница 11: ...4R long piping up to 30 meters Easy to use remote control Quality Improvement o Random auto restart after power failure for safety restart operation o Gas leakage protection o Prevent compressor reverse cycle o Inner protector to protect compressor o Noise prevention during soft dry operation Operation Improvement o Quiet mode to reduce the indoor unit operating sound o Powerful mode to reach the ...

Страница 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...

Страница 13: ...13 5 Dimensions 5 1 Indoor Unit ...

Страница 14: ...14 5 2 Outdoor Unit 5 2 1 CU E12QB4R 5 2 2 CU E18QB4R ...

Страница 15: ...15 6 Refrigeration Cycle Diagram ...

Страница 16: ...16 7 Block Diagram 7 1 CS E12QB4RW CU E12QB4R ...

Страница 17: ...17 7 2 CS E18QB4RW CU E18QB4R ...

Страница 18: ...18 8 Wiring Connection Diagram 8 1 Indoor Unit ...

Страница 19: ...19 8 2 Outdoor Unit 8 2 1 CU E12QB4R Resistance of Compressor Windings MODEL CU E12QB4R CONNECTION 5RS102XNA21 U V 1 211 Ω U W 1 211 Ω V W 1 211 Ω Note Resistance at 20 C of ambient temperature ...

Страница 20: ...ssor Windings MODEL CU E18QB4R MODEL CU E18QB4R CONNECTION CWA951620 CONNECTION 5RD132XBC21 YELLOW BLUE 115 8 Ω U V 1 897 Ω YELLOW ORANGE 71 71 Ω U W 1 907 Ω YELLOW RED 116 2 Ω V W 1 882 Ω Note Resistance at 20 C of ambient temperature Note Resistance at 20 C of ambient temperature ...

Страница 21: ...21 9 Electronic Circuit Diagram 9 1 Indoor Unit ...

Страница 22: ...22 9 2 Outdoor Unit 9 2 1 CU E12QB4R ...

Страница 23: ...23 9 2 2 CU E18QB4R ...

Страница 24: ...24 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...

Страница 25: ...25 10 1 2 Display Printed Circuit Board ...

Страница 26: ...26 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board 10 2 1 1 CU E12QB4R ...

Страница 27: ...27 10 2 1 2 CU E18QB4R ...

Страница 28: ...28 10 2 2 Demand Control Printed Circuit Board 10 2 2 1 CU E12QB4R 10 2 2 2 CU E18QB4R ...

Страница 29: ...y from any noise generating equipment The electrical wiring must be shielded with a steel conduit 10 If the power supply is subject to noise generation add a suppressor 11 Do not install the indoor unit in a laundry Electric shocks may result Note Thoroughly study the following installation locations 1 In such places as restaurants and kitchens considerable amount of oil steam and flour adhere to ...

Страница 30: ...nal charging etc 1 Brazing for piping a Execute brazing before tightening the flare nut b Brazing must be executed while blowing nitrogen gas This prevents generation of oxidized scale in copper pipe 2 When there is a lot of brazings for long piping install a strainer midway of the piping The strainer is locally supplied 3 Use clean copper pipe with inner wall surface free from mist and dust Blow ...

Страница 31: ...own slope 1 50 to 1 100 be sure not to provide up and down slope to prevent reversal flow Be sure to check no air trap on drain hose and to ensure smooth water flow and no abnormal sound The height of drain may be possible up to 750 mm When drain set piping install as shown in the figure below Drain Test The air conditioner uses a drain up motor to drain water Use the following procedure to test t...

Страница 32: ...s piping thick piping and drain piping add a further of 10 mm to 30 mm thickness material Wall seal When the outdoor unit is installed on a higher position than the indoor unit install the trap so as not to instill rain water into the wall by transmitting in piping Stuff the space among piping the electric wire and the drain hose with Putty and seal the penetration wall hole Make sure that rain wa...

Страница 33: ...s 3 pcs before fitting the decorative panel For temporarily securing the front grille o Place decorative panel on the screws 3 pcs before fitting move decorative panel as illustrated and tighten all the screws 4 pcs Check before hand the height from the ceiling to the unit The front grille fitting direction is determined by the unit direction Only use the screws with the length of 35mm which is pr...

Страница 34: ...en the indoor control box cover 2 pcs 5 Insert firmly the connector of cosmetic louver to indoor pcb CN STM1 CN STM2 and CN DISP Be caution not to clamp the cord in between control board and control board cover 6 After complete install back removed part follow opposite procedure Be sure to hook the air inlet grill string to prevent grill from falling and causing injury from it ...

Страница 35: ...ditional gas additional refrigerant should be added as shown in the table Example For E12 If the unit is installed at 10 m distance the quantity of additional refrigerant should be 50 g 10 7 5 m x 20 g m 50 g 11 2 1 1 Indoor Outdoor Installation Diagram 11 2 2 Install the Outdoor Unit After selecting the best location start installation according to Indoor Outdoor Unit Installation Diagram 1 Fix t...

Страница 36: ...serting the flare nut locate at valve onto the copper pipe Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table 11 2 3 3 Connecting the Piping to Outdoor Multi Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Make flare after inserting the flare nut locate at valve onto the copper pipe Align center of pi...

Страница 37: ...ing piping work for installation and reinstallation Take care of the liquid refrigerant it may cause frostbite 11 2 5 Connect the Cable to the Outdoor Unit 1 Remove the control board cover from the unit by loosening the screw 2 Cable connection to the power supply through Isolating Devices Disconnecting means o Connect approved type polychloroprene sheathed power supply cord 3 x 1 5 mm2 1 5HP or 3...

Страница 38: ...ing 1 Please cut using pipe cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes 11 2 7 Disposal of Outdoor Unit Drain Water If a drain elbow is used the unit should be placed on a stand which i...

Страница 39: ... 1 Press AUTO SW continuously for more than 11 sec to below 16 sec A pep pep pep sound will occur at the eleventh sec 2 Press the A C RESET button once remote control signal will activate the remote control transmission code setting mode 3 Press OFF ON button The new Remo Con No will be accepted and memorized after which the new Remo Con No can be used Remo Con No Change in Remote Control 1 Remove...

Страница 40: ...tting temperature and it is updated continuously whenever the electrical power is supplied to the unit 12 1 2 Cooling Operation 12 1 2 1 Thermostat control Compressor is OFF when Intake Air Temperature Internal Setting Temperature 1 5 C continue for 3 minutes When compressor is OFF Thermostat OFF and AUTO FAN is set the fan will stop periodically Compressor is ON after waiting for 3 minutes if the...

Страница 41: ...4 C if previous operate in DRY mode then continue in DRY mode otherwise COOL mode is decided o If 2 5 C indoor intake temperature remote control setting temperature 4 C maintain with previous mode o If indoor intake temperature remote control setting temperature 2 5 C HEAT mode is decided 12 2 Indoor Fan Motor Operation 12 2 1 Basic Rotation Speed rpm A Basic Rotation Speed rpm i Manual Fan Speed ...

Страница 42: ...nd During fan motor on if fan motor feedback 2550 rpm or 50 rpm continue for 10 seconds then fan motor error counter increase fan motor is then stop and restart If the fan motor counter becomes 7 times then H19 fan motor error is detected Operation stops and cannot on back 12 3 Outdoor Fan Motor Operation It starts when compressor starts operation and it stops 30 seconds after compressor stops ope...

Страница 43: ...e angles of the vane are as stated above and the positions of the vane are as Figure 2 below When the air conditioner is stopped using remote control the vane will shift to close position 12 5 Quiet Operation Cooling Mode Cooling Area of Dry Mode Purpose o To provide quiet cooling operation compare to normal operation Control condition o Quiet operation start condition When POWERFUL QUIET button a...

Страница 44: ...or FM RPM depends on pipe temp sensor of indoor heat exchanger 12 7 Powerful Mode Operation When the powerful mode is selected the internal setting temperature will shift lower up to 2 C for Cooling Soft Dry or higher up to 3 5 C for Heating than remote control setting temperature for 20 minutes to achieve the setting temperature quickly 12 8 Timer Control There are 2 sets of ON and OFF timer avai...

Страница 45: ...OFF Timer Setting OFF POWERFUL Mode OFF QUIET Mode OFF AIR SWING OFF Note If POWER LED is blinking the possible operation of the unit are Hot Start during Deice operation operation mode judgment or ON timer sampling If Timer LED is blinking there is an abnormality operation occurs 12 11 Drain Pump Control Operation Drain pump control This unit has built in with drain pump Control content During CO...

Страница 46: ...ft Dry A 6 13 10 07 Cooling Soft Dry B 5 87 8 82 Cooling Soft Dry C 5 87 8 05 Heating 7 23 14 98 9 99 14 67 4 The first 30 minutes of cooling operation A will be applied 13 1 3 IPM Power transistor Prevention Control Overheating Prevention Control 1 When the IPM temperature rises to 120 C compressor operation will stop immediately 2 Compressor operation restarts after 3 minutes the temperature dec...

Страница 47: ...indoor piping temperature is below 4 C o During Heating operations Indoor piping temperature indoor suction is under 5 C Control contents o Compressor stops and restart after 3 minutes o If the conditions above happen 2 times within 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 13 1 6 Low Frequency Protection Control 1 When the compressor operate at frequency lower tha...

Страница 48: ...door heat exchanger is higher than 5 C At the same time indoor fan speed will be higher than during its normal operation If indoor heat exchanger temperature is higher than 13 C the fan speed will return to its normal operation 13 2 4 Freeze Prevention Control 2 Control start conditions o During Cooling operation and soft dry operation During thermo OFF condition indoor intake temperature is less ...

Страница 49: ... 13 3 2 Outdoor Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 14 C in order to avoid compressor overloading 13 3 3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below If the heat exchanger temperature exceeds 60 C compressor will stop 13 3 4 Low Tempera...

Страница 50: ...power o DRM3 Operate at 75 of rated input power During DRM the Power Indicator blinks 3 seconds ON and 0 5 seconds OFF to indicate the compressor cut off status 13 3 8 Pump down Operation by CN S A convenience method to activate pump down operation Control start condition o During power standby condition short CN S continuously between 1 second and 10 seconds Control stop condition o 480 seconds a...

Страница 51: ...F ON button may be used together with remote control to set change the advance setting of air conditioner operation 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF ON button is pressed continuously for more than 11 seconds 3 beep sounds will occur at 11th seconds to identify the Remote Control Number Switch Mode is in standby condition an...

Страница 52: ...emote Control Receiving Sound OFF ON Mode is restarted 14 2 Remote Control Button 14 2 1 SET Button To check remote control transmission code and store the transmission code to EEPROM o Press Set button continuously for 10 seconds by using pointer o Press Timer Set button until a beep sound is heard as confirmation of transmission code changed 14 2 2 RESET RC To clear and restore the remote contro...

Страница 53: ... Down Servicing Purpose The Test Run operation will be activated by short circuiting CN S Pin 1 and 2 at outdoor unit PCB after power supplied to outdoor unit terminal 1 and 2 The unit forced to run rated frequency cooling operation mode CU E12QB4R ...

Страница 54: ...54 CU E18QB4R ...

Страница 55: ...nd a fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right Normal Pressure and Outlet Air Temperature Standard Gas Pressure MPa kg cm 2 G Outlet air Temperature C Cooling Mode 0 9 1 2 9 12 12 16 Heating Mode 2 3 2 9 23 29 36 45 Condition Indoor fan speed High Outdoor temperature 3...

Страница 56: ...e Electric current during operation Low Pressure High Pressure Electric current during operation Insufficient refrigerant gas leakage Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression Carry out the measurement of pressure electric current and temperature fifteen minutes after an operation is started ...

Страница 57: ...To Display Memorized Error Code Protective Operation 1 Turn power on 2 Press the CHECK button on the remote controller continuously for 5 seconds 3 will be displayed on the remote controller display Note Display only for No transmitting signal no receiving sound and no Power LED blinking 4 Press the TIMER or button on the remote controller The code H00 no abnormality will be displayed and signal w...

Страница 58: ...t Indoor heat exchanger temperature sensor 2 lead wire and connector H27 Outdoor air temperature sensor abnormality Continuous for 5s Outdoor air temperature sensor open or short circuit Outdoor air temperature sensor lead wire and connector H28 Outdoor heat exchanger temperature sensor 1 abnormality Continuous for 5s Outdoor heat exchanger temperature sensor 1 open or short circuit Outdoor heat e...

Страница 59: ...happen within 30 minutes Power transistor module overheat PCB faulty Outdoor air circuit fan motor F97 Compressor overheating protection 3 times happen within 30 minutes Compressor overheat Insufficient refrigerant F98 Total running current protection 3 times happen within 20 minutes Total current protection Check refrigeration system Power source or compressor lock F99 Outdoor direct current DC p...

Страница 60: ...ived from outdoor unit in indoor unit signal transmission is checked whether it is normal Malfunction Caused Faulty indoor unit PCB Faulty outdoor unit PCB Indoor unit outdoor unit signal transmission error due to wiring error Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units Troubleshooting ...

Страница 61: ...are interconnected Malfunction Caused Wrong models interconnected Wrong indoor unit or outdoor unit PCBs mounted Indoor unit or outdoor unit PCBs defective Indoor outdoor unit signal transmission error due to wrong wiring Indoor outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor and outdoor units Troubleshooting ...

Страница 62: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 63: ...n Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 64: ...ion Conditions An input current detected by Current Transformer CT is below threshold value when the compressor is operating at certain frequency value for 3 minutes Malfunction Caused Lack of gas Broken CT current transformer Broken Outdoor PCB Troubleshooting ...

Страница 65: ...etermine abnormal fan motor feedback of rotation 2550rpm or 50rpm Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty indoor unit PCB Troubleshooting ...

Страница 66: ... Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 67: ... Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 68: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 69: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 70: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Страница 71: ...alfunction Decision Conditions The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused Wrong models interconnected Wrong indoor unit and outdoor unit PCBs used Indoor unit or outdoor unit PCB defective Troubleshooting ...

Страница 72: ...eration is used to determine abnormal fan motor Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty outdoor unit PCB Troubleshooting ...

Страница 73: ...h pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation Phenomena unit is stopping and re starting very often in heating mode Malfunction Caused Indoor heat exchanger thermistor Clogged air filter or heat exchanger Over bent pipe liquid side Troubleshooting ...

Страница 74: ...l takes place when indoor pipe temperature is lower than 2 C Malfunction Caused Air short circuit at indoor unit Clogged indoor unit air filter Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed Faulty indoor unit fan motor Refrigerant shortage refrigerant leakage Clogged expansion valve or strainer Faulty indoor pipe temperature sensor Faulty indoor unit PCB Troubleshooting ...

Страница 75: ...is cold during heating except deice or when indoor heat exchanger is hot during cooling and compressor operating the 4 way valve is detected as malfunction Malfunction Caused Indoor heat exchanger pipe thermistor 4 way valve malfunction Troubleshooting Check gas side pipe for hot gas flow in cooling mode ...

Страница 76: ...startup and operation of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors When DC voltage detected is LOW transistor switching will turn ON by controller to push up the DC level When DC voltage detected is HIGH 391Vdc 425Vdc active LOW signal will send by the controller to turn OFF relay RY...

Страница 77: ...rigeration Cycle Abnormality Malfunction Decision Conditions The input current is low while the compressor is running at higher than the setting frequency Malfunction Caused Lack of gas 3 way valve close Troubleshooting ...

Страница 78: ...ion Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disconnect Faulty Outdoor PCB Faulty compressor Troubleshooting ...

Страница 79: ... the outdoor unit heat exchanger thermistor Malfunction Caused Outdoor heat exchanger temperature rise due to short circuit of hot discharge air flow Outdoor heat exchanger temperature rise due to defective of outdoor fan motor Outdoor heat exchange temperature rise due to defective outdoor heat exchanger thermistor Outdoor heat exchanger temperature rise due to defective of outdoor unit PCB Troub...

Страница 80: ...ted o Heat Sink Overheating During operation of cooling and heating when heat sink temperature data 90 C is detected by the heat sink temperature sensor Malfunction Caused IPM overheats due to short circuit of hot discharge air flow IPM overheats due to defective of outdoor fan motor IPM overheats due to defective of internal circuitry of IPM IPM overheats due to defective IPM temperature sensor M...

Страница 81: ...ling and heating when compressor tank temperature data 112 C is detected by the compressor tank temperature sensor Malfunction Caused Faulty compressor tank temperature sensor 2 3 way valve closed Refrigerant shortage refrigerant leakage Faulty outdoor unit PCB Faulty compressor Troubleshooting ...

Страница 82: ...on of cooling and heating when an input over current X value in Total Running Current Control is detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Excessive refrigerant Faulty outdoor unit PCB Troubleshooting ...

Страница 83: ...eating when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry Malfunction Caused DC current peak due to compressor failure DC current peak due to defective power transistor s DC current peak due to defective outdoor unit PCB DC current peak due to short circuit Troubleshooting ...

Страница 84: ...mbly of Parts 1 Open the Intake Grille from the Front Grille by moving the catchers to center Fig 1 Fig 1 2 Remove the Control Board Cover by removing the screws Fig 2 Fig 2 3 Release the Fig 3 o CN STM1 WHT connector o CN STM2 YLW connector o CN DISP WHT connector o CN FM WHT connector o CN TH1 WHT connector o CN TH2 BLU connector o CN DRMTR1 BLU connector o AC01 BLK AC02 WHT and CN DRMTR2 RED fr...

Страница 85: ...ld it to the Control Board Fig 4 Fig 4 5 Remove the Front Grille by removing the screw A and screws B C D half way open Fig 5 Fig 5 6 Remove the Air Guider and Drain Pan complete by removing the screws Fig 6 Fig 6 7 Remove the Turbo Fan by removing the bolt Fig 7 Fig 7 ...

Страница 86: ...86 8 Remove the Fan Motor by release the Fan Motor lead wire connectors and Fan Motor screws Fig 8 Fig 8 ...

Страница 87: ...c controller be careful of electrostatic discharge 1 Remove the 5 screws of the Top Panel Fig 1 2 Remove the 8 screws of the Front Panel Fig 2 3 Remove the screw of the Terminal Board Cover 4 Remove the Top Cover of the Control Board by 4 hooks Fig 3 5 Remove the Control Board as follows Fig 4 Fig 5 Fig 6 ...

Страница 88: ...ove the 10 screws of the Front Panel Fig 2 3 Remove the Top Cover of the Electronic Controller Fig 3 4 Remove the Control Board Fig 4 5 Remove the 8 screws of the Electronic Controller Fig 5 Caution When handling electronic controller be careful of electrostatic discharge ...

Страница 89: ... IP 19 0 2765 2369 1088 27 22 0 3268 1884 1136 15 7 2422 2276 1076 23 18 4 2811 1869 1092 13 3 2108 2066 1074 20 15 8 2393 1802 1076 Dry bulb value based on 46 humidity 17 1 2 CS E18QB4RW CU E18QB4R Indoor C Outdoor DB C 5 16 25 35 DB WB TC SHC IP TC SHC IP TC SHC IP TC SHC IP 19 0 4499 3327 344 5533 3899 869 3544 3020 549 4800 3625 1450 27 22 0 7204 3620 722 6608 3380 1014 5435 2877 947 5548 2921...

Страница 90: ...2023 986 2504 1080 3913 1487 4000 1050 4166 1036 4019 729 16 2161 990 2619 1021 3672 1336 4124 991 4408 1043 4661 1013 17 2 2 CS E18QB4RW CU E18QB4R Indoor C Outdoor WB C 15 7 2 7 12 24 DB TC IP TC IP TC IP TC IP TC IP TC IP 24 2803 1699 2993 1528 4631 2276 4162 1235 3058 834 4550 1008 20 2786 1659 3650 1812 5145 2168 5000 1510 5268 1484 5033 1121 16 2840 1548 3757 1729 5152 2102 5327 1531 5910 16...

Страница 91: ...forced cooling forced heating mode 18 1 Cool Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature 27 C DryBulb 19 C Wet Bulb Unit setting Standard piping length forced cooling at 16 C Hi fan Compressor frequency Rated for cooling operation Voltage 230V 240V 18 1 1 CS E12QB4RW CU E12QB4R ...

Страница 92: ...92 18 1 2 CS E18QB4RW CU E18QB4R ...

Страница 93: ...ure Characteristic Condition Indoor room temperature 20 C DryBulb C Wet Bulb Unit setting Standard piping length forced heating at 30 C Hi fan Compressor frequency Rated for Heating operation Voltage 230V 240V 18 2 1 CS E12QB4RW CU E12QB4R ...

Страница 94: ...94 18 2 2 CS E18QB4RW CU E18QB4R ...

Страница 95: ...haracteristic of the unit has to be corrected in accordance with the piping length 18 3 1 CS E12QB4RW CU E12QB4R 18 3 1 1 Cooling Capacity 18 3 1 2 Heating Capacity Note The graphs show the factor after added right amount of additional refrigerant ...

Страница 96: ...96 18 3 2 CS E18QB4RW CU E18QB4R 18 3 2 1 Cooling Capacity 18 3 2 2 Heating Capacity Note The graphs show the factor after added right amount of additional refrigerant ...

Страница 97: ...97 19 Exploded View and Replacement Parts List 19 1 Indoor Unit ...

Страница 98: ...98 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 99: ... 1 CWA50C2549 23 HOLDER SENSOR 2 CWH32143 24 EVAPORATOR SUPPORTER 3 CWD911529A 25 TUBE ASS Y CAPIL TUBE 1 CWT07K1188 26 DRAIN PUMP COMPLETE 1 CWB53C1025 O 27 PANEL DRAIN PUMP ASS Y 1 CWD93K1021 28 DRAIN PUMP 1 CWB532059 29 ANTI VIBRATION BUSHING 3 CWH501080 30 FLOAT SWITCH DRAIN PUMP 1 CWA121233 O 31 FLEXIBLE PIPE 1 CWH85C1033 32 DRAIN NOZZLE 1 CWH411011 33 DRAIN HOSE HEAT INSULATION 1 CWG321050 3...

Страница 100: ...TION INSTRUCTION 1 CWF616460 62 BAG 1 CWG86420 63 BASE BOARD COMPLETE 1 CWG62C1047 64 SHOCK ABSORBER 1 CWG712509 65 SHOCK ABSORBER 3 CWG712510 66 C C CASE 1 CWG565693 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Страница 101: ...101 19 2 CZ BT20E Front Grille Complete Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 102: ... 4 CWH081007 10 BEARING 6 CWH641008 O 12 PLATE COVER FOR A S MOTOR 1 CWD911459 13 PLATE COVER FOR CONNECTING SHAFT 2 CWD911460 14 PLATE COVER FOR END SHAFT 1 CWD911461 21 ELECTRONIC CONT RECEIVER INDICATOR 1 CWA743610 22 LEAD WIRE COMPLETE 1 CWA67C5576 24 INTAKE GRILLE 1 CWE221131 28 LEVER ARM 2 CWH651029 29 AIR FILTER 1 CWD001142 O Note All parts are supplied from PAPAMY Malaysia Vendor Code 0002...

Страница 103: ...103 19 3 Outdoor Unit 19 3 1 CU E12QB4R Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 104: ...25 CONTROL BOARD COVER TOP 1 CWH131473 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C8580R O 27 TERMINAL BOARD ASSY 1 CWA28K1110J O 28 CABINET SIDE PLATE COMPLETE 1 CWE04C1296 29 SENSOR COMPLETE AIR PIPE TEMP 1 CWA50C2825 O 30 CABINET SIDE PLATE LEFT 1 CWE041579A 31 CABINET FRONT PLATE CO 1 CWE06C1360 32 CABINET TOP PLATE 1 CWE031148A 33 CONTROL BOARD COVER 1 CWH131470A 34 CONTROL BOARD COVER COMPLETE 1 C...

Страница 105: ...105 19 3 2 CU E18QB4R Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 106: ...OR CO AIR AND PIPE TEMP 1 CWA50C2517 O 31 REACTOR 1 G0C153J00007 O 32 TERMINAL BOARD ASSY 1 CWA28K1281 O 33 TERMINAL BOARD ASSY 1 CWA28K1110J O 38 ELECTRONIC CONTROLLER MAIN 1 CWA73C8581R O 40 CONTROL BOARD COVER TOP 1 CWH131333 41 CABINET SIDE PLATE COMPLETE 1 CWE041317A 42 HANDLE 1 CWE161010 43 CABINET SIDE PLATE 1 CWE041318A 45 CABINET FRONT PLATE CO 1 CWE06K1084 46 WIRE NET 1 CWD041128A 47 CAB...

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