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3. Location of Controls and Components

3.1 Indoor

Unit

3.2 Outdoor

Unit

3.3 Remote

Control

Содержание CSS18NKUA

Страница 1: ...n 28 11 4 Airflow Direction 28 11 5 Quiet Operation Cooling Mode Cooling Area of Dry Mode 29 11 6 Powerful Mode Operation 30 11 7 Timer Control 30 11 8 Random Auto Restart Control 30 11 9 Indication P...

Страница 2: ...ention Control 2 34 12 13 Dew Prevention Control 34 13 Servicing Mode 35 13 1 Auto Off On Button 35 13 2 Remote Control Button 36 14 Troubleshooting Guide 37 14 1 Refrigeration Cycle System 37 14 2 Br...

Страница 3: ...alled with Earth Leakage Circuit Breaker ELCB or Residual Current Device RCD Otherwise it may cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint ca...

Страница 4: ...cause refrigerant gas leakage 4 Do not touch outdoor unit air inlet and aluminium fin It may cause injury 5 Select an installation location which is easy for maintenance 6 Pb free solder has a higher...

Страница 5: ...A Max Input Power W 11 2 2 36k 12 8 2 85k Starting Current A 7 2 11 9 Min Circuit Ampacity 15 0 20 0 Max Overcurrent Protection 20 0 25 0 SEER HSPF 18 00 17 50 Type Hermetic Motor Rotary Hermetic Moto...

Страница 6: ...6 7 5 8 16 7 5 8 Drain Hose Length mm inch 650 25 5 8 650 25 5 8 Fin Material Aluminium Pre Coat Aluminium Pre Coat Fin Type Slit Fin Slit Fin Row x Stage x FPI 2 15 21 2 15 21 Indoor Heat Exchanger S...

Страница 7: ...7 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control...

Страница 8: ...8 4 Dimensions 4 1 Indoor Unit...

Страница 9: ...9 4 2 Outdoor Unit...

Страница 10: ...10 5 Refrigeration Cycle Diagram...

Страница 11: ...11 6 Block Diagram...

Страница 12: ...12 7 Wiring Connection Diagram 7 1 Indoor Unit...

Страница 13: ...13 7 2 Outdoor Unit...

Страница 14: ...14 8 Electronic Circuit Diagram 8 1 Indoor Unit...

Страница 15: ...15 8 2 Outdoor Unit...

Страница 16: ...16 9 Printed Circuit Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board...

Страница 17: ...17 9 1 2 Power Printed Circuit Board 9 1 3 Indicator Printed Circuit Board...

Страница 18: ...18 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board...

Страница 19: ...A place where noise prevention is taken into consideration Do not install the unit near a doorway Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles Recommended insta...

Страница 20: ...ting the unit on the concrete wall consider using anchor bolts o Always mount the installation plate horizontally by aligning the marking off line with the thread and using a level gauge 2 Drill the p...

Страница 21: ...1 10 1 3 3 Indoor Unit Installation 10 1 3 4 For the right rear piping 10 1 3 5 For the right bottom piping 10 1 3 6 For the embedded piping This can be used for left rear piping and bottom piping als...

Страница 22: ...ecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes o Ensure the colour of wires of outdoor uni...

Страница 23: ...iping 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 e...

Страница 24: ...g Align the center of piping and sufficiently tighten the flare nut with fingers Further tighten the flare nut with torque wrench in specified torque as stated in the table 10 1 4 2 2 Connecting the p...

Страница 25: ...alve caps of both of the 2 way valve and 3 way valve Position both of the valves to Open using a hexagonal wrench 5 32 8 Mount valve caps onto the 2 way valve and the 3 way valve o Be sure to check fo...

Страница 26: ...be properly earthed o Earth lead wire shall be Yellow Green Y G in colour and longer than other lead wires for electrical safety in case of the slipping 10 1 4 5 Piping Insulation 1 Please carry out...

Страница 27: ...ation 11 1 2 1 Thermostat control Compressor is OFF when intake Air Temperature Internal Setting Temperature 2 7 F Compressor is ON after waiting for 3 minutes if the Intake Temperature Internal Setti...

Страница 28: ...otor error counter increased fan motor is then stopped and restarted If the fan motor error counter increased to 7 then H19 fan motor error is detected Operation stopped and could not be restarted 11...

Страница 29: ...It does not swing during fan motor stop Operation Mode Vane Angle Cooling and soft dry 68 112 Manual vertical airflow direction can be set using remote control the angles of the vane are as stated bel...

Страница 30: ...utes 11 7 Timer Control 11 7 1 ON Timer Control ON timer can be set using remote control the unit with timer set will start operate earlier than the setting time This is to provide a comfortable envir...

Страница 31: ...eration ON Timer Setting ON Quiet Mode ON Powerful Mode ON Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Note If POWER LED blinks the possible operation of the unit is ope...

Страница 32: ...total running current AC exceeds X value the frequency instructed for compressor operation will be decreased If the running current does not exceed X value for 5 seconds the frequency instructed will...

Страница 33: ...itions above happened 2 times within 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 12 7 Low Frequency Protection Control 1 When the compressor operates at frequency lower...

Страница 34: ...ure is higher than 55 4 F for 5 minutes the fan speed will return to its normal operation 12 12 Freeze Prevention Control 2 Control start conditions o During Cooling operation and soft dry operation D...

Страница 35: ...n and then press any button at remote control to transmit and store the desired transmission code to the EEPROM There are 4 types of remote control transmission code could be selected The indoor unit...

Страница 36: ...transmission code change 13 2 2 RESET RC To clear and restore the remote control setting to factory default o Press once to clear the memory 13 2 3 RESET AC To restore the unit s setting to factory de...

Страница 37: ...cm 2 G Outlet air Temperature F Cooling Mode 130 5 174 0 9 12 53 6 60 8 Condition Indoor fan speed High Outdoor temperature 95 F at cooling mode Compressor operate at rated frequency Different in the...

Страница 38: ...w 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 out...

Страница 39: ...2 3 To Display Memorized Error Code Protective Operation 1 Turn power on 2 Press the CHECK button on the remote control 3 will be displayed on the remote control display Note Display only for No sign...

Страница 40: ...failure 4 occurrences within 30 minutes 4 way valve v coil F90 System and compressor microcomputer communication error for S10 only 2 occurrences within 5 seconds Compressor Outdoor PCB F90 Power fac...

Страница 41: ...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 wrong wiring Indoor unit outdo...

Страница 42: ...tion 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 Cause...

Страница 43: ...ons A current transformer CT is detected by checking the compressor running frequency rated frequency and CT detected input current less than 1 14A for continuously 20 seconds Malfunction Caused CT de...

Страница 44: ...termine 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...

Страница 45: ...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...

Страница 46: ...tion 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 Faul...

Страница 47: ...tion 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 Fau...

Страница 48: ...ion 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 C...

Страница 49: ...lfunction 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...

Страница 50: ...ring heating operation the temperature detected by the indoor pipe temperature sensor is above 140 F Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat...

Страница 51: ...control takes place when indoor pipe temperature is lower than 35 6 F Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat exchanger Air short circuit De...

Страница 52: ...unction Decision Conditions When cooling operation when indoor pipe temperature or indoor heat exchanger temperature sensor is above 113 F Malfunction Caused Faulty connector connection Faulty indoor...

Страница 53: ...eration of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level Malfunction Caused DC voltage peak due to power...

Страница 54: ...ooling and heating operation running current 0 65A I 1 65A During cooling indoor intake indoor pipe 39 2 F Malfunction Caused Refrigerant shortage refrigerant leakage Poor compression performance of c...

Страница 55: ...lfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disco...

Страница 56: ...s detected by the outdoor pipe temperature sensor Malfunction Caused Outdoor pipe temperature rise due to short circuit of hot discharge air flow Outdoor pipe temperature rise due to defective of outd...

Страница 57: ...ture data 212 F is detected by the IPM 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 overhe...

Страница 58: ...of cooling and heating when compressor tank temperature data 233 6 F is detected by the compressor tank temperature sensor Malfunction Caused Refrigerant shortage refrigerant leakage 2 3 way valve cl...

Страница 59: ...etected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Over current due to compressor failure Over current due to defective...

Страница 60: ...door unit PCB Troubleshooting Checking the power transistor Never touch any live parts for at least 10 minutes after turning off the circuit breaker If unavoidable necessary to touch a live part make...

Страница 61: ...itor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 15 1 Indoor Electronic Controllers Cross Flow F...

Страница 62: ...62 15 1 1 2 To remove discharge grille...

Страница 63: ...63 15 1 1 3 To remove control board 15 1 1 4 To remove cross flow fan and indoor fan motor...

Страница 64: ...64...

Страница 65: ...ical Data 16 1 Operation Characteristics 16 1 1 CS S18NKUA CU S18NKUA Cooling Characteristic o Room temperature 81 F DBT 66 F WBT o Operation condition High fan speed o Piping length 24 6ft o Compress...

Страница 66: ...66 Piping Length Characteristic o Room temperature 81 F DBT 66 F WBT o Operation condition High fan speed o Outdoor temperature 95 F DBT o Compressor Freq Fc...

Страница 67: ...67 16 1 2 CS S24NKUA CU S24NKUA Cooling Characteristic o Room temperature 81 F DBT 66 F WBT o Operation condition High fan speed o Piping length 24 6ft o Compressor Freq Fc...

Страница 68: ...68 Piping Length Characteristic o Room temperature 81 F DBT 66 F WBT o Operation condition High fan speed o Outdoor temperature 95 F DBT o Compressor Freq Fc...

Страница 69: ...Exploded View and Replacement Parts List 17 1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service...

Страница 70: ...241289 26 CONNECTING BAR 1 CWE261156 27 CONNECTING BAR 1 CWE261158 28 CONNECTING BAR 1 CWE261157 29 CONNECTING BAR 1 CWE261159 30 CONNECTING BAR 1 CWE261160 31 AIR SWING MOTOR 1 CWA98K1014 32 AIR SWIN...

Страница 71: ...71 17 2 Outdoor Unit 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 72: ...O 25 REACTOR 1 G0C452J00002 O 26 CONTROL BOARD COVER TOP 1 CWH131333 27 TERMINAL BOARD ASSY 1 CWA28K1076J O 28 ELECTRONIC CONTROLLER MAIN 1 CWA73C6798R CWA73C6799R O 29 CONTROL BOARD COVER COMPLETE 1...

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