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Sanyo C2472 Air Conditioner User Manual

1. 57 12 2 Checklist Delore Servicing uuu usa aaah siasa EIS E RE 58 12 3 Tools Specifically for 410 4 59 12 4 Tubing Installation Procedures zunne natens 59 12 5 In Case of Compressor Malfunction susct oai oth otro a guae x hex S re pE aS tre E SURFER MUERE 60 12 6 In Case Refrigerant is 0 62 12 7 Charging Additional Refrigerant 63 12 8 Retro Fitting Existing Systems 63 INSTRUCTION MANUAL eene tette teet ttt 64 1 OPERATING RANGE Models KS1872 C1872 KS2472 C2472 Indoor Air Intake Temp Outdoor Air Intake Temp ius 95 F D B 71 F W B 115 F D B OON 3 67 F D B 57 F W B 67 F D B Models KS1872 CL1872 KS2472 CL2472 Indoor Air Intake Temp Outdoor Air Intake Temp 95 F 71 F W B 115 F DB Cooling 67 F D B 57 F W B 0 F D B 2 SPECIFICATIONS 2 1 Unit Specifications Indoor Unit KS1872 Outdoor Unit C1872 Voltage Rating 230V Single Phase 60Hz Capacity BTU h 17 600 4 100 to 17 700 kW 5 15 1 2 to 5 2 Air Circulation High ft min m h Electrical Rating 1 3 SEER BTU W Compressor Locked Rotor Amperes Fuse or Circuit
2. cancel press HIGH POWER button again ON 1 OFF O e When the HIGH POWER button is pressed the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High e QUIET Mode and HIGH POWER Mode cannot be used at the same time ION NOTE Depending on the operating conditions the fan speed may be increased by a small amount only QUIET MODE C C FAN SPEED NIGHT SETBACK FLAP HIGH POWER R 7 ION Mode The ION mode is used during operation to generate negative ions that freshen up the air in the room Press the ION button The mark appears the display To cancel press ION button again e The indoor unit s ION lamp lights up while negative ions are being generated e ION on is the remote control unit s initial setting The negative ions are generated from the negative ion generator Ol 800 15 EG 15 Special Remarks DRY 4 Operation How it works room temperature reaches the level that was set the units operation frequency is changed automatically e During DRY operation the fan speed automatically runs at lower speed for providing a comfortable breeze e DRY operation is not possible if the indoor temperature is 59 F or less Cooling Operation Sometimes the indoor unit may not get to the set fan speed such as LOW and QUIET under cool
3. 1 mmn 7 4 Howto Test Run the Air Conditioner 1 2 21 1 7 5 Remove the Grille to Install the Indoor Unit 4 mmn 8 1 Address Setting of the Remote Control 8 2 Disconnecting and Connecting Positive Connector for Outdoor Unit FUNCTIONS 3 9 Operation FUNCIONS mmm 9 2 Protective FUNCHIONS Sete UM IEEE nM DUREE Mn S MEE Page 10 TROUBLESHOOTING 10 1 Precautions before Performing Inspection or Repair 48 10 2 Method of Self Diagnostics 48 10 9 Checking the Indoor and Outdoor Units 51 10 4 Trouble Diagnosis of Fan 52 10 5 Noise Malfunction and Electromagnetic Interference 54 11 CHECKING ELECTRICAL COMPONENTS 11 1 Measurement of Insulation Resistance 55 11 2 Checking Continuity of Fuse on PCB 56 12 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 12 1 Characteristics of New Refrigerant R410A
4. dida 16 S NII TE 17 Using the 1 Hour OFF 19 Tips tor Energy SVN T 19 Adjusting the Airflow Direction 20 Operation without the Remote Control Unit 21 Care and Cleaning 21 eise iom U LL UL AS 24 Operating RANGE succeed keine is ute 24 Product Information If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate on the bottom of the cabinet Model No Serial No Date of purchase Dealer s address Phone number Alert Symbols The following symbols used in this manual alert you to potentially dangerous conditions to users service personnel or the appliance This symbol refers to a hazard or unsafe WARNING practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe AT practice which can result in personal injury or product or property damage Ol 800 3 EG 3 Installation Location We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit Before installation check that the voltage of the electric supply in your home or office is the same
5. N GRN YEL GRN YEL WHT WHT N TERMINAL CRANKCASE HEATER CONTROLLER TO INDOOR UNIT ACH COILIOUTDOOR 112131415 7 ip L SUPPLY BLK BLK BLK BLK YEL YEL CORE HIGH PRESSURE SWITCH BLK 1173 2P CONNECTOR BLK FERRITE THERMISTOR COIL THERMISTOR ORG THERMISTOR mn OUT DOOR COMPRESSOR RED BLU BRN 7P CONNECTOR WHT WHT ORG MAGNETIC COIL COMPRESSOR ERRAT RELAY ad FAN MOTOR 2P CONNECTOR RED 8FA2 5257 68400 3 36 INSTALLATION INSTRUCTIONS 7 1 Installation Site Selection 7 1 1 Indoor Unit prevent heat generation and the possibility of fire do not place obstacles 6 15 cm 7 enclosures and grilles in front 2 5 cm 2 min min of or surrounding the air conditioner in a way that may block air flow SQ AVOID Front View e direct sunlight Fig 1 e nearby heat sources that may affect performance of INDOOR Tubing length L the unit UNIT e areas where leakage of flammable gas may be expected e places where large amounts of oil mist exist 2 OUTDOOR UNIT DO select an appropriate position from which every corner of the room can be uniformly cooled High on a wall Fig 2 is best select a location that will hold the weight of the unit AUTION select a location where tubing and
6. intervals If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature In these cases the temperature around the remote control unit may differ from the temperature detected at the air conditioner s position Using the Remote Control Unit How to Install Batteries FAN SPEED NIGHT SETBACK ame FLAP HIGH POWER 1 Slide the cover in the direction indicated by the arrow and remove it 2 Install two AAA alkaline batteries Make sure the batteries point in the direction marked in the battery compartment 3 Use a thin object such as the tip of a pen to press the ACL button SENSOR O TOF 1240244 apr Oa CO ACL ACL button batteries last about six months depending on how much you use the remote control unit Replace the batteries when the remote control unit s display fails to light or when the remote control cannot be used to change the air conditioner s settings Use two fresh leak proof type AAA alkaline batteries in replacing batteries follow the instructions as mentioned in the sub section How to Install Batteries If you do not use the remote control unit more than 1 month take out the batteries 10 Ol 800 10 EG Using the Remote Control Unit continued
7. How to Use the Remote When using the remote control unit always point the unit s transmitter head Control Unit directly at the air conditioner s receiver Air conditioner INdoor unit MN N Receiver Remote control Transmitter head unit 2 Remote Control Unit remote control unit may be operated either from a non fixed position or from Installation Position wall mounted position To ensure that the air conditioner operates correctly DO NOT install the remote control unit in the following places DO Indirect sunlight Behind a curtain or other places where it is covered More than 26 feet 8 m away from the air conditioner e Inthe path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic noise e Where there is an obstacle between the remote control unit and air conditioner since a check signal is sent from the remote control unit every 5 minutes Mounting the Remote Control Before mounting the remote control unit press the ON OFF operation button at Unit the mounting location to make sure that the air conditioner operates from that location The indoor unit should make a beeping sound to indicate that it has received the signal Remote control Rear side unit mount Mounting screws 5 32 x 5 8 4 x 16 mm included s Hole e To prevent loss of the remote control unit you can connect the re
8. Ol 800 19 EG 19 Adjusting the Airflow Direction 1 Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right When the humidity is high the vertical vanes should be in the front position during the cooling or dehumidifying operation If the vertical vanes are positioned all of the way to the right or left condensation may begin to form around the air vent and drip down 2 Vertical The vertical airflow can be adjusted by moving the flap with the remote control unit Do not move the flap with your hands Confirm that the remote control unit has been turned on Use the FLAP button to set either the sweep function or one of the six airflow direction settings QUIET MODE COOL FAN SPEED NIGHT SETBACK DRY SWEEP FLAP HIGH POWER FAN Sweep function Setting airflow The flap starts moving up and down to q Referring to the above illustration use the FLAP button to set the airflow direction within the range used during the cooling or C Auto flap function dehumidifying operation The flap is set to the recommended A position deliver air over the sweep range oN 7 NOTE e The automatically closes when the unit is off e Use the FLAP button on the remote control to adjust the position of the flap If you move the flap by hand the flap position according to the remote control and
9. Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components Ol 800 5 EG 5 Unit Display and Operation Button INDOOR UNIT IMPORTANT Ltt N OPERATION OPERATION lamp id usi i i TIMER TIMER lamp Avoid using radio equipment GUIET QUIET lamp such as mobile phone near within 4 ft the remote V X meme control receiver Some radio AN equipment may cause malfunction of the unit lt OPERATION button If the trouble happens disconnect power and restart REMOTE CONTROL receiver the air conditioner after a few minutes REMOTE CONTROL receiver This section picks up infrared signals from the remote control unit transmitter OPERATION button When the remote control cannot be used pressing this button enables cooling operation Each time this button is pressed the operation mode changes cyclically Cooling operation Stop OPERATION lamp This lamp lights when the system is in the continuous DRY orange COOL green and FAN green mode TIMER lamp This lamp lights when the system is being controlled by the timer QUIET lamp This lamp lights during operation in the QUIET mode This lamp lights during operation in the ION mode while the indoor unit is operating NOTE The unit s display lamps are dimmed during operation in the NIGHT SETBACK mode 6 Ol 800 6 EG Remote Control Unit Display
10. 4 x 16mm included operates from that location The indoor unit Hole To prevent loss of the remote control should make a beeping unit you can connect the remote sound to indicate that it control unit to the mount by passing has received the signal a string through the remote control unit and attachment hole To take out the remote control unit pull it forward Fig 7 40 7 4 How to Test Run the Air Conditioner After turning on power to the air conditioner use the remote controller and follow the steps below to conduct the test run 1 Set the remote controller in Test Run mode Fig 8a a Press and hold the ION button b Then press and hold the 1HR TIMER button c At the same time press the ACL reset button once 2 Use a pointed object such as the tip pen to press ION b the ACL button om After a few seconds appears and 1 blinks in AN 1HR the remote controller display area i button Fig 8b QUIET MODE FAN SPEED NIGHT SETBACK d Release the 1HR TIMER button e Release the ION button 2 Start Cooling mode test run by pressing the ON OFF operation button of the remote controller Fig 8a FLAP HIGH POWER This starts the fan producing uncooled forced air with the 4 indicator lamps OPERATION lamp TIMER lamp QUIET lamp and ION lamp on the main unit blinking Fig 8c ACL
11. After 3 minutes the system shifts into cooling operation 4 cool air will start to be felt Cool mode test run is unaffected by the room temperature Fig 8a 3 Press the ON OFF operation button of the remote controller again to stop the test run Fig 8a 4 Finally press the ACL reset button of the remote controller to release it from Test Run mode to return to normal mode Fig 8a and oP 1 will disappear from the remote controller display area IMPORTANT After the test run is completed be sure to press the ACL reset button to return to normal mode The air conditioner will not operate correctly if this is not done on U F QUIET QUIET lamp ED ION lamp TLA AN OPERATION Fig 8c 41 7 5 Remove the Grille to Install the Indoor Unit Basically these models can be installed and wired without removing the grille If access to any internal part is needed follow the steps as given below How to remove the grille 1 Grasp both ends of the air intake grille and remove Z it by opening towards the front and pulling towards mf you Fig THIN 2 Remove
12. from the mineral oil used for R22 Thus more attention to moisture prevention and faster replacement work compared with conventional models are required 57 12 2 Checklist before Servicing Use a clutch type flare tool for R410A or the conventional flare tool Note that sizes of the resultant flares differ between these two tools Where a conventional flare tool is used make sure to observe A Specification amount of extrusion by using the flare spacer Specification A Diameter of tube D Flare tool for R410A Conventional flare tool for R22 Dia 1 4 6 35 mm Dia 3 8 9 52 mm Oto 0 0196 0 0472 Dia 1 2 12 7 O to 0 5 mm 1 2 mm Dia 5 8 15 2 mm e Size of flare Flare tool for R410A Conventional flare tool R22 e Tubing precautions e Refrigerant R410A is more easily affected by dust or moisture compared with R22 thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation Never use 0 0276 0 7 mm thick copper tubing or tubing which is less than 0 0315 0 8 mm in thickness since air conditioners with R410A are subject to higher pressure than those using R22 and R407C e No addition of compressor oil for R410A No additional charge of compressor oil is permitted e No use of refrigerant other than R410A Never use a refrigerant other than R410A e If refrigerant R410A is exposed to fire Through welding etc toxic gas may be released when R410A refr
13. lt 230V gt Outdoor Unit Performance at 230V Single phase 60Hz Rating conditions Running amp Power input Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 D B Cooling lt 208V gt Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor P Performance at 208V Single phase 60Hz Rating conditions Running amp 05 55 Power input 2 300 2 355 Rating conditions Indoor air temperature 80 26 7 D B 67 19 4 W B Outdoor air temperature 95 F 35 D B 32 6 2 Electric Wiring Diagrams Indoor Unit KS1872 52472 To avoid electrical shock hazard be sure to WARNING disconnect power before checking servicing and or cleaning any electrical parts EVAPORATOR TERMINAL BASE BLK WHT RED LGRN YEL OOO CONNECTOR BR AP L P WHT LAMP 10P WHT 5 ajs o of ajs foo ro FLAP MOTOR IND LAMP ASSY CONTROLLER ROOM THERMISTOR BLK ROOM COI BLK 4P WHT BLK 271 COIL THERMISTOR MOTOR 2 5257 70500 0 33 Outdoor Unit C1872 CL1872 To avold electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts REACTANCE L WHT WHT MI 2P CONNECTOR WHT N WHT WHT GRN YEL GRN YEL BD BD HIC HIC A
14. 10 3 Checking the Indoor and Outdoor Units 1 Checking the indoor unit CO Check tems unit operation 1 Use the remote controller to operate the e The rated voltage must be present between inter unit wirings 1 and 2 unit in TEST run mode To determine e Connect a 5 k ohm resistor between inter unit wirings 2 and 3 When the whether the mode is currently in voltage at both ends is measured approximately 12 to 15V DC must TEST run mode check the 3 indicator be output and the multimeter pointer must bounce once every 8 lamps on the unit If all 3 are blinking seconds the current mode is TEST run Or instead of measuring the voltage you can insert an LED jig and check that the LED flickers once every 8 seconds If there are no problems with the above then check the outdoor unit For the Test run procedure refer to 7 4 How to Test Run the Air Conditioner 2 Checking the outdoor unit Check items unit operation 1 Apply the rated voltage between outdoor The control panel LED red must illuminate unit terminals 1 and 2 2 Short circuit the outdoor unit COM terminal The compressor fan motor and 4 way valve must all turn on to the T RUN terminal f there are no problems with the above then check the indoor unit Using the TEST T RUN terminals TEST T RUN terminals T RUN Test run compressor and fan motor turn ON TEST MV Compresses time to 1 60th accelerates oper
15. 7 86 95 25 30 35 40 Outdoor inlet air D B temp F C NOTE e Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 9 2 Overload prevention during heating Points of rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 27 Indoor Unit KS2472 Outdoor Unit CL2472 Cooling Characteristics 230V _ 159 1 1 Sa D LT 145 Yn 1 0 2 S 131 09 C gt 117 Q 0 8 7 86 95 25 30 35 40 Outdoor inlet air D B temp F C Ve z 5 o O Q O 77 86 95 25 30 35 40 Outdoor inlet air D B temp F C Indoor discharge air temperature F C 7 86 95 25 30 35 40 Outdoor inlet air D B temp F C NOTE e Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 9 2 Overload prevention during heating Points of rating condition Black dots i
16. Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 14 Indoor Unit KS2472 Control PCB Part No CB KS2472 Controls Control Circuit Fuse 250V 3A Remote Control Unit RCS 4VPIS4U Q ty Dia and Length inch mm 1 D3 11 16 L33 9 32 D94 L845 8 j Nominal Output W Coil Resistance Ohm Temp 68 F 20 C s Safety Device Over Current Protection Over Heat Protection Run Capacitor Micro F Flap Motor Type Stepping Motor MP24Z3 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 7 Ambient Temp 77 F 25 C Heat Exchanger Coil Fins per inch Face Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 15 2 2 2 Outdoor Unit Outdoor Unit C1872 Control PCB CB C1872 Control Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output 6 1 050W Compressor Oil Amount Pints cc FV50S 0 74 350 Coil Resistance Ambient Temp 68 F 20 C Ohm Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Overload Relay Model CS 7L115 Operation Temp Open 239 F 115 C Close 203 F 95 C Run Capacitor 7 Crankcase Heater 227 Safety Device CT Peak current cut off control Yes Yes Yes Propeller Q ty Dia inch mm 1 D16 17 32 D420 W Coil Resistance Ohm RED WHT 77 5 Ambient
17. Because capillary tubing is used in the outdoor unit both the wide and narrow tubes of this air conditioner become cold To prevent heat loss and wet floors due to dripping of K condensation both tubes must be well insulated with a Thickness Thickness proper insulation material The thickness of the insulation Min 5 16 8 mm Min 5 16 8 mm should be a min 5 16 8 mm After a tube has been insulated Narrow tube M Wide tube never try to bend it into a narrow CAUTION curve because it can cause the tube to break or crack 24 5 PERFORMANCE DATA 5 1 Temperature Charts Indoor Unit KS1872 Outdoor Unit C1872 Cooling Characteristics 230V 159 un psig MPaG Low pressure at wide tube service valve 5 7 86 95 0 25 30 35 40 Operating current 7 86 95 25 30 35 40 Indoor discharge air temperature F C 7 86 95 0 25 30 35 40 Outdoor inlet air D B temp F C NOTE e Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high heating mode Refer to 9 2 Overload prevention during heating Points of rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperat
18. Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Displayed when the time display is set to 12 hour time Symbols 1 Operation mode 4 Timer 24 hour clock with ON OFF MILD Son a ON Mm cm s MEN a 1 OFF Timer Automatic operation b NIGHT SETBACK 6 Confirmation of transmission 7 Auto fla dication Flap angle indication 3 Temperature setting SET TEMP 60 86 F WA mM When set to 80 F bl j Sweep indication 29 temperature indication D lt 8 High power operation 9 Quiet operation 10 ION operation OI 800 7 EG 7 Remote Control Unit Transmitter Sensor Display Cover closed ON OFF operation button 1 HR TIMER button Temperature setting buttons TEMP ION button MODE selector button NIGHT SETBACK button HIGH POWER button QUIET button FAN SPEED selector button FLAP button ON TIME Advance button Advance button OFF TIME setting R b setting buttons Return button eturn button buttons CLOCK button Time display selector button CANCEL button SENSOR button ADDRESS switch ACL button Temperature display sel
19. HIGH POWER e The self diagnostics function utilizes the 3 indicator lamps on the main unit in combinations of ON lamps blinking lamps and OFF lamps to ONO OFO report the existence of sensor trouble or a protective operation The EP qu lamps blink or remain ON for 5 seconds then turn OFF for 2 seconds 2 Self diagnostics is completed when the buzzer sounds 3 short beeps dub e A maximum of 3 self diagnostics reports are displayed for 5 seconds CANCEL CLOCK each beginning with the most recent report Following this display the SENSOR 12 24 lamps turn OFF In order to view the self diagnostics results again press the button again PEUX vere ACL e The 3 lamps remain OFF if no trouble has occurred nee utton lt IMPORTANT gt After self diagnostics is completed be sure to press the ACL reset button to return to normal mode The air conditioner will not operate if this is not done 48 1 Self diagnostics Lamps INDOOR UNIT nn 1 OPERATION lamp t4r1 2 TIMER lamp TIL 3 QUIET lamp FT 3 ION lamp r OPERATION button REMOTE CONTROL receiver the indications cover various units the corresponding parts listed below may not be present in some models Indication on indoor unit X OFF 30 Blinking ON Illuminated Quiet Ti 0 ti M Code Diagnostics item Diagnostics contents Room temperature sensor
20. Locked Rotor Amperes A A 20 1 350 Microprocessor Thermister Fan Speeds indoor 7 Outdoor Airflow Direction Indoor Horizontal Vertical Ar Fite EACH Operation Sound Indoor Hi Me Lo Qt A 47 44 41 30 Max allowable tubing length at shipment ft m Refrigerant Narrow tube inch mm Tube Diameter Wide tubs mm Refrigerant Tube Kit Accessories Unit Dimensions Height Weight Shipping DATA SUBJECT CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 9 Indoor Unit KS1872 Outdoor Unit CL1872 Voltage Rating 230V Single Phase 60Hz Capacity BTU h 17 600 4 100 to 17 700 kW 5 15 1 2 to 5 2 Air Circulation High fE min Moisture Removal High Pints h Available Voltage Range 187 to 253 Running Amperes 7 0 1 2 to 7 0 lt 230V gt 1 500 250 to 1 500 Power Factor SEER BT U W Compressor Locked Rotor Amperes A A Microprocessor Thermister Fan Speeds indoor Outdoor Airflow Direction Indoor Horizontal Vertical Ar Fite 0 DC Twin Rotary Inverter Ib kg R410A 2 87 1 3 9 1 2 Electric Expansion Valve Operation Sound Indoor Hi Me Lo Qt A 42 38 30 28 Qt Quiet mode Outdoor Hi 5 Flare Type Max allowable tubing length at shipment ft m 33 10 Refr
21. Mode is used for saving energy Press the NIGHT SETBACK button while operation The mark appears in the display To release the night setback function press the NIGHT SETBACK button again QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER In Cooling and DRY Mode and When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection was made and then another 2 F after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed Setting temperature L Press the NIGHT 30 min SETBACK button 14 Ol 800 14 EG Operation with the Remote Control Unit continued 5 QUIET Mode QUIET Mode is used to reduce the fan sound of the indoor unit Press the QUIET button The mark appears in the display To cancel press QUIET button again EG n QUIET Mode the fan rotates at a slower speed than the fan speed setting e the unit is already operating with a very low airflow the fan sound may change even if the QUIET button is pressed 6 HIGH POWER Mode HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes r Press the HIGH POWER button The mark appears in the display
22. OFF the power before connecting or disconnecting the motor connectors B When performing voltage measurement at the indoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 1 minute after operation Is started For this reason to measure the voltage again turn OFF the unit once using the remote controller and then start the air conditioner again Trouble symptom 1 fan does not stop when the unit stops Indoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor unit controller 3 locations Measurement location 1 Vm Gnd Between pin 1 and pin 3 DC 230 V or more 2 Vcc Gnd Between pin 4 and pin 3 DC 14 V or more 3 Vs Gnd Between pin 5 and pin 3 Fluctuation between DC 1 0 to 4 3 V Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Indoor unit controller trouble Replace the controller Reference DC motor connector pin arrangement Pin 1 Vm red Pin 2 Not used Pin 3 Gnd black Pin 4 Vcc white Pin 5 Vs yellow Pin 6 PG blue Trouble symptom 3 Motor rotates for some time several seconds but then quickly stops when the indoor unit operates There is tr
23. Outdoor air temperature 95 F 35 D B Indoor Unit KS1872 Outdoor Unit CL1872 Cooling 230V Outdoor Unit Performance at 230V Single phase 60Hz Rating conditions Running amp Power input Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 D B Cooling lt 208V gt Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor P Performance at 208V Single phase 60Hz Rating conditions Running amp 03 32 Power input 1 468 1 500 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 C D B 31 Indoor Unit KS2472 Outdoor Unit C2472 Cooling lt 230V gt Indoor Unit Outdoor Unit Beslan Fan Motor Fan Motor Compressor P Performance at 230V Single phase 60Hz Rating conditions Running amp Power input 2 300 2 355 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 C D B Cooling lt 208V gt Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor Performance at 208V Single phase 60Hz Rating conditions Hunning amp Power input 2 300 2 355 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 D B Complete Unit Indoor Unit KS2472 Outdoor Unit CL2472 Cooling
24. Temp 68 F 20 C WHT BLU 77 5 BLU RED 77 5 Safety Device Type Internal Controller Over Current Protection Run Capacitor O O SS SS MEE ME VAC Heat Exchanger Coil Coil Aluminum Plate Fin Copper Tube Hows 2 510 Fins per inch Face Area ft m 5 49 0 510 External Finish Acrylic baked on enamel finish 16 DATA SUBJECT TO CHANGE WITHOUT NOTICE Outdoor Unit C2472 Control PCB CB C2472 Control Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output G8T265FU1JW 2 410W Compressor Oil Amount Pints cc FV50S 1 49 700 Coil Resistance Ambient Temp 77 F 25 C Ohm Safety Device CT Peak current cut off control Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Overload Relay Model Operation Temp Open 239 F 115 C Close 203 F 95 C Run Capacitor Crankcase Heater Propeller Q ty Dia inch mm 1 D18 1 8 D460 Poles 8 2 Nominal Output OOS SSCS Coil Resistance Ambient Temp 68 F 20 C Safety Device Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Heat Exchanger Coil Rows Fins per inch Face Area f m _External Finish Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE Outdoor Unit CL1872 Control PCB CB CL1842 Contro
25. after unit operation switched from OFF to ON by use of ON timer operation 46 NIGHT SETBACK When NIGHT SETBACK operation is set the temperature and fan speed settings will be adjusted automatically to allow comfortable sleep When NIGHT SETBACK operation is set mark appears on the remote controller The main unit display lamp also becomes dimmer e COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F 1 C when 30 minutes have passed after the selection was made and then another 2 F 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed 2 1 Setting temperature Press the NIGHT SETBACK button 30 min 30 min Time 9 2 Protective Functions Freeze prevention During COOL or DRY operation freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below 1 Freeze prevention operation is engaged when the temperature of the indoor heat exchanger is below 43 F 6 C 2 Restart after freeze prevention operation occurs when the temperature of the indoor heat exchanger reaches 46 F 8 C or above Indoor heat exchanger temperature F Area Auto
26. as the voltage shown on the nameplate Do not install this air conditioner where there are fumes or flammable gases or in an extremely humid space such as a greenhouse Do notinstall the air conditioner where excessively high heat generating objects are placed Avoid To protect the air conditioner from heavy corrosion avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa Electrical Requirements 1 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrician for details 2 Each unit must be properly grounded with a ground or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician Safety Instructions e Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual Never use or store gasoline or other flammable vapor or liquid near the WARNING air conditioner it is very dangerous This air conditioner has no ventilator for intaking fresh air from outdoors You must open doors or windows frequently when you use gas or oil heating appliances in the same room which consume a lot of oxygen from the air Otherwise there is a risk of suffocatio
27. button again This completes the setting of the current time 2 How to set the OFF time Example To stop the air conditioner at 11 00 am 1 Press the OFF TIME setting The timer indication is displayed button once and the present OFF time is shown Press the Advance Return 4 The timer indication blinks button until AM 11 00 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute increments Wait a few seconds and then the The timer indication stops setting is complete blinking and the present time is displayed Ol 800 17 EG 17 Setting the Timer continued 3 How to set the ON time Example To start operation at 7 10 am AN 1 Press the TIME setting The timer indication is displayed button once and the present ON time is shown Press the Advance Return The timer indication blinks button until AM 7 10 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute increments Wait a few seconds and then The timer indication stops the setting is complete blinking and the present time is displayed 4 How to set DAILY ON OFF Example To start operation at 7 10 am and stop the air conditioner at 11 00 am REPEAT timer 10 30 pm 7 10 am 11 00 am Present time ON OFF Diod LL 1 Set the timer ON OF
28. charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air conditioning unit Example In case of charging refrigerant to a unit requiring 1 68 Ib 0 76 Kg using a capacity of a 22 Ib 10 Kg cylinder the minimum necessary amount for the cylinder is 1 68 22 x 0 20 6 08 Ib 0 76 10 x 0 20 2 76 Kg For the remaining refrigerant refer to the instructions of the refrigerant manufacturer If using a charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Prepare an evacuated charging cylinder beforehand CAUTION prevent the composition of R410A from changing never bleed the refrigerant gas into the atmosphere while transferring the refrigerant Fig 3 Do notuse the refrigerant if the amount in the charging cylinder is less than 20 61 Configuration and characteristics of cylinders lt Valve Single valve Charge liquid refrigerant with cylinder in up side down position Fig 1 Single valve with siphon tube Charge with cylinder in normal position Fig 2 Charging cylinder Open Refrigerant cylinder Fig 3 12 6 In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit Follow the procedure described below to locate points of leaks and carr
29. cleaning the indoor unit CAUTION Do wipe the plastic casing using very hot water Some metal edges and the fins are sharp and may cause injury if handled improperly be especially careful when you clean these parts The internal coil and other components of the outdoor unit must be cleaned every year Consult your dealer or service center Ol 800 21 EG 21 Care and Cleaning continued Anti Mold Filter The anti mold filter behind the air intake grille should be checked and cleaned at least once every two weeks How to remove the anti mold 1 Grasp both ends of the air Air intake grille filter intake grille and remove it by opening towards the front and pulling towards you 2 Remove the anti mold filter attached to the rear of the air intake grille Cleaning Use vacuum cleaner to remove light dust If there is sticky dust on the filter wash the filter in lukewarm soapy water rinse it in clean water and dry it How to replace the anti mold 1 With the FRONT mark of the filter anti mold filter at the front align the two indentions near the mark with the hooks at the rear of the air intake grille and then mount the anti mold filter Anti mold filter 2 Allow the edge of the air intake grille to slide into the top of the Groove indoor unit and then insert it Pin all the way inside Air intake grille 3 To attach the air intake grille to the indoor u
30. e Be sure to connect the power supply line to the outdoor unit as shown the wiring diagram The indoor unit draws its power from the outdoor unit e Do not run wiring for antenna signal or power lines of television radio stereo telephone security system or intercom any closer than 3 4 1 m from the power cable and wires between the indoor and outdoor units Electrical noise may affect the operation 39 OUTDOOR UNIT Power supply L Single phase 230 208V 60HZ Grounding line 7 3 Remote Control Unit Installation Position The remote control unit can be operated from either a non fixed position or a wall mounted position To ensure that the air conditioner operates correctly do not install the remote control unit in the following places In direct sunlight Behind a curtain or other place where it is covered More than 26 8 m away from the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic interference Where there is an obstacle between the remote control unit and the air conditioner since a check signal is sent from the remote control unit every 5 minutes 7 3 1 Mounting on a Wall Before mounting the Rear side remote control unit press Remote control unit mount the ON OFF operation button at the mounting lt location to make sure Mounting screws if the air conditioner 5 32 x 5 8
31. fallure 1 Sensor open circuit or short circuit 2 Contact failure at connector open circuit at terminal crimping location gt 3 E 502 Indoor heat exchanger sensor failure short circuit detection only for the humidity sensor 3 Indoor outdoor circuit board failure S04 Compressor temperature sensor failure 1 Sensor open circuit or short circuit 2 Contact failure at connector or open circuit at terminal crimping location 605 Outdoor heat exchanger sensor failure 8 Outdoor circuit board failure gt Outdoor air temperature sensor failure electrical current detection Ouder steunbeer ei rt 01 Indoor outdoor communications failure 1 Mis wiring 2 AC power failure 3 Blown fuse 4 Power relay failure x X serial communications b Indoor or outdoor circuit board failure HIC circuit failure Power Tr transistor circuit failure ET unit external ROM OTP data 4 External ROM data failure 2 Outdoor circuit board failure rt gt E04 Peak current cut of 1 Instantaneous power outage 2 or power transistor failure Outdoor circuit board failure 2 1 Outdoor circuit board failure 2 Outdoor power supply voltage failure SX E06 Compressor discharge overheat 1 Electric expansion valve failure 2 Capillaries choked 3 Shortage of refrigerant prevention activated 4 Continuous overload operation 5 Outdoor fan does not rotate 6 Outdoor circuit board failure ote sar Indoor fan operating
32. gas e Confirm upon completing installation that no refrigerant gas is leaking If escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas Table of Contents OPERATING RANGE ennen RUE EM eneen eee SPECIFICATIONS mt hanes area 2 2 Major Component Specifications 2 3 Other Component Specifications mmm en uU UNUS MU d KHAN DIMENSIONAL DATA annnnvnananaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaauaaaauaaaauaaaauaaanuaaanaaaauuaaanaaaanaaaanuaaannananaaaanaa REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram PERFORMANCE DATA Selk Temperature thay u u ee uuu u eenen ene 5 2 Air Throw Distance Charts a nannaaaaaaaaaaaaanasasasanannananananananananunaunununnnnnnanananananannanannnnnnina ELECTRICAL DATA 6 1 El ettmicalCOGhnaraeteri8tl08 uuu u u u u uu uu u u uuu u uuu a s 6 2 IGC WING DIEGEM sarene EE E DM INSTALLATION INSTRUCTIONS 7 1 Installation Site Selection aanaaanaanaaanaaaanavaga nasanannanannnnanannnnananannananannnnannnnnnanannnnanannnnanana 7 2 Recommended Wire Length and Diameter 7 3 Remote Control Unit Installation Position
33. monitoring range is entered the compressor stops and the indoor fan operates with 1 f fluctuation models only The Sensor Dry operation during the Low Ambient Cooling Mode outside air temperature 59 F 15 C or lower is as follows The compressor operates a cycle of 3 minutes ON and 6 minutes OFF repeatedly B PAM o control n order to further improve inverter performance control is switched between PWM control at low operation speeds and PAM control at high operation speeds making the most effective use of power This function acts to raise the power but keeps the AC system in the same operating mode This function is set with the HIGH POWER button on the remote controller It can be set regardless of the temperature and fan speed settings HIGH POWER operation from remote controller The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Frequency x gt Time 30 min 5 min pd V Start End MAX NOTE When HIGH POWER operation ends the unit operates at low Hz for 5 minutes regardless of the thermostat OFF conditions When in DRY mode operation is in the cooling zone Lamp colors OPERATION lamp DRY operation COOL operation FAN operation TIMER lamp QUIET lamp ION lamp Timer backup Operation stops if there are no operator controls for 25 hours or longer
34. operation at very low outdoor temperatures due to the indoor unit being protected from ice or frost when combined with the outdoor unit for Low Ambient Cooling models In the event of power failure the unit will stop When the power is resumed Power failure during the unit will restart automatically within five minutes by the remote control unit operation Clicking Sound Clicking sound is heard from In cooling operation any plastic parts may shrink due to a sudden the air conditioner temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear The remote control unit sends the setting condition to the air conditioner Remote Control Unit regularly at five minute intervals 16 Ol 800 16 EG Setting the Timer QUIET MODE C FAN SPEED NIGHT SETBACK FLAP HIGH POWER NOTE In the descriptions below the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control e Temperature F e Time AM PM 1 How to set the present Example To set to 10 30 pm time s C Press the CLOCK button once if The time indication alone flashes the time indicator is not flashing Press the Advance Return 4 The time can be set in 1 minute button until PM 10 30 is increments Holding down the button displayed advances the time rapidly in 10 minute increments Press the CLOCK
35. plate fin or copper tube with the lead clip of the insulation resistance tester and R measure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Clip Note that the ground line terminal should be skipped Copper check tube a tester O O metallic part 11 1 3 Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate Fig 2 m 11 1 4 Measurement of Insulation Clip Resistance for Electrical Parts tube Disconnect the lead wires of the desired electric part metallic part from terminal plate capacitor etc Similarly disconnect the connector Then measure the insulation resistance Figs 3 4 Fig 3 NOTE From fan motor Refer to Electric Wiring Diagram compressor and If the probe cannot enter the poles because the hole is too narrow then use probe with thinner P EN Metallic Probe part H Q jj N seal i 4 o O Insulation Fig 4 tester 55 11 2 Checking Continuity of Fuse on PCB Ass y e Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 e Check for continuity using a multimeter as shown in PCB Ass y Fig 6 9
36. the actual flap position may no longer match lf this should happen shut off the unit wait for the flap to close and then turn on the unit again the flap position will now be normal again Do not have the pointed down during cooling operation Condensation may begin to form around the air vent and drip down 20 800 20 Operation without the Remote Control Unit INDOOR UNIT If you have lost the remote control unit or it has trouble follow the steps below EE mam When the air conditioner is not running TIMER Each time the OPERATION button is pressed the operation mode changes pou cyclically OPERATION Cooling operation Stop OPERATION button NOTE The temperature is set to the room temperature minus 4 F during the cooling operation and the fan speed and are set to Auto Care and Cleaning For safety be sure to turn the air conditioner off and also to disconnect ANETO the power before cleaning Do not pour water on the indoor unit to clean it This will damage the internal components and cause an electric shock hazard Casing and Grille Indoor Unit Clean the casing and grille of the indoor unit with a vacuum cleaner brush or wipe them with a clean soft cloth If these parts are stained use a clean cloth moistened with a mild liquid detergent When cleaning the grille be careful not to force the vanes out of place Never use solvents or harsh chemicals when
37. the outdoor unit stops Outdoor unit controller trouble Trouble symptom 2 fan motor does not rotate when the outdoor unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor unit controller 3 locations Measurement location 1 Vs Gnd Between pin 1 and pin 4 DC 230V or more 2 Vcc Gnd Between pin 5 and pin 4 DC 14V or more 3 Vsp Gnd Between pin 7 and pin 4 After fluctuating 4 times between DC 1 0 to 4 3V 1 sec ON and DC 0 V 1 sec OFF the DC motor trips Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Outdoor unit controller trouble Replace the controller Reference DC motor connector pin arrangement Pin 1 Vs white Pin 2 Not used Pin 3 Not used Pin 4 Gnd black Pin 5 Vcc red Pin 6 FG blue Pin 7 Vsp yellow Trouble symptom 3 Motor rotates for some time several seconds but then quickly stops when the outdoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during outdoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during outdoor unit operation Remedy for symptom 3 to 5 It is not possible to id
38. unit C1872 CL1872 LLL X XX X LL LL LL LL Air intake Min 4 10 Valve V 4 side g 7 Min 10 7 p 25 cm Mi g Air discharge Min 2 5 cm 4 14 40 Fig 5a C2472 CL2472 Z Z ZZ Z Z Z Z Z Z Z Z ZZ Z Air inta ke Min 8 20cm Valve side Min 10 25 cm Min ENT Air discharge i 4 10 cm Min 50 cm Z Z Z R Z Z Z Z Z Z Fig 5b A NN NNN W N N A 22 A M MI W SWR N N WW IN N N ANI ll SES N AN M a NI M SQ AN AAA W WW NNN NN N N Z y N AM V W Fig 5e Exhaust fan Heat source Obstacle above SES 1 FR Air discharge Obstacle S N A N NN UN N A E Ground Min 4 10 cm Air intake Obstacle above Z D Min S 2 m Z 4 2 Z k E LA 5 O Z Z Z Ground win 8 20 cm Air intake V Cushion rubber 7 2 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality For field wiring requirements please refer to your local electrical codes Carefully observe these regulations when carrying
39. 3 Fig 5 Fuse Fig 6 56 12 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 12 1 Characteristics of New Refrigerant R410A 12 1 1 What is New Refrigerant R410A R410A is a new refrigerant that contains two types of pseudo non azeotropic refrigerant mixture Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant R22 12 1 2 Components mixing proportions HFC32 50 HFC125 50 12 1 3 Characteristics Less toxic more chemically stable refrigerant e The composition of refrigerant R410A changes whether it is in a gaseous phase or liquid phase Thus when there is a refrigerant leak the basic performance of the air conditioner may be degraded because of a change in composition of the remaining refrigerant Therefore do not add new refrigerant Instead recover the remaining refrigerant with the refrigerant recovery unit Then after evacuation totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state in liquid phase e When refrigerant R410A is used the composition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state Thus always charge the refrigerant while it is in liquid phase N e Ether type oil is used for compressor oil for R410A type units which is different
40. Breaker Capacity lt 230V gt Controls Temperature Control Microprocessor Thermister Control Unit Wireless Remote Control Unit 24 Hour ON or OFF Timer 1 Hour OFF Timer 0 Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 42 38 30 28 Refrigerant Narrow tube inch mm Tube Diameter _ Wide tube inch mm Optional Air Clean Fiter Unit Dimensions Height 29 1 8 740 Fan Speeds Indoor Outdoor Auto and 3 steps Auto Hi Me Lo Package Dimensions Height 14 29 32 379 Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Weight Net Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 6 Indoor Unit KS1872 Outdoor Unit C1872 lt 208V gt Voltage Rating 208V Single Phase 60Hz Performance Cooling Capacity BTU h 17 600 4 100 to 17 700 kW 5 15 1 2 to 5 2 Air Circulation High ft min Electrical Rating 1 4 SEER BTUW Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity 7 200 Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 42 38 30 28 Refrigerant Narrow tube noch mm Tube Diameter Wide tube inch mm Optional Air Clean Filte Unit Dimensions Height Package Dimensions Height 29 1 8 740 14 29 32 379 S
41. C2 AC Ai A2 El E TERMINAL CONTROLLER TO INDOOR UNIT A TH TEK 112 M BLK BLK BLK BLK YEL YEL T tc O O LLI Z 2 O Q CORE HIGH PRESSURE SWITCH FERRITE COIL THERMISTOR THERMISTOR THERMISTOR c mn OUT DOOR COMPRESSOR PNK RED WHT BLU 7P CONNECTOR WHT 2P CONNECTOR BLK MAGNETIC COIL GRN YEL COMPRESSOR RELAY n FAN MOTOR 2P CONNECTOR RED 8FA2 5257 68600 2 34 Outdoor Unit C2472 To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts REACTANCE L WHT WHT BJ 2P CONNECTOR WHT N WHT WHT GRN YEL GRN YEL TERMINAL CONTROLLER TO INDOOR UNIT A TH TEK 1121314151617 112 F en M BLK BLK BLK BLK YEL YEL oc O Lu ki CORE HIGH PRESSURE SWITCH FERRITE THERMISTOR COIL THERMISTOR INIH ORG THERMISTOR c mn OUT DOOR COMPRESSOR PNK RED WHT BLU 7P CONNECTOR WHT ORG 2P CONNECTOR BLK MAGNETIC COIL COMPRESSOR RELAY n FAN MOTOR 2P CONNECTOR RED 8FA2 5257 68700 3 35 Outdoor Unit CL2472 To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts REACTANCE L WHT WHT 1P CONNECTOR WHT 2P CONNECTOR WHT
42. F times as The present time 10 30 pm and shown in 2 1 2 3 and 3 1 2 3 displayed NOTE e The ON OFF combination timer uses the current time as the reference and it is activated starting from whichever set time comes first e With the ON OFF combination timer the settings are repeated every day e You can check the timer ON OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons To cancel a timer program Press the CANCEL button e When either an ON or OFF timer is to be canceled press the button corresponding to the timer whose program is to be canceled and then press the CANCEL button airflow direction fan speed and temperature setting can be changed after a timer program has been set even when the unit is stopped Even when operation is stopped during an ON timer program the unit will start operating when the set time is reached provided that the program is not canceled e When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off 18 Ol 800 18 EG Using the 1 Hour OFF Timer 1 1 Hour OFF Timer This function causes the unit to operate for one hour and then stop regardless of whether the unit is on or off when this button is pressed The indicator in the display indicates that this function is operating Setting procedure Regardless of whether the unit is operating or stopped press the 1 HR TIMER button a
43. TECHNICAL amp SERVICE MANUAL SANYO CL1872 KS2472 C2472 T CL2472 Destination North America DC INVERTER SPLIT SYSTEM AIR CONDITIONER Indoor Model No Product Code No Outdoor Model Product Code No KS1872 1 852 099 83 C1872 1 852 330 36 KS2472 1 852 099 84 C2472 1 852 330 37 CL1872 1 852 330 40 CL2472 1 852 330 41 KS1872 KS2472 IMPORTANT These air conditioners employ new refrigerant R410A Pay special attention when servicing the unit n410A CL2472 REFERENCE No SM700663 Important Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe installation and trouble free operation you must e Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes e Pay close attention to all warning and caution notices given in this manual This symbol refers to a hazard WARNING or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard CAUTION or prachce we can result in personal injury or product or property damage If Necessary Get Help These instructions are all you need for most installation sites and maint
44. air conditioner operates as in a area The compressor will stop if the temperature of the compressor discharge exceeds 248 F 120 C due to shortage of gas other reason CT Peak current cut off control This function prevents the circuit breaker or fuse from operating to open the circuit This function works when electrical current has increased due to an increase in the cooling load or to a decrease in the power supply voltage In these cases operation frequency is reduced or operation is interrupted auto matically to control the electrical current for operation When the cause of the increase in electrical current is rectified the system will resume operation in the original mode A Cooling Dry Peak current cut off trips Hz down 14 0 10 TROUBLESHOOTING 10 1 Precautions before Performing Inspection or Repair After checking the self diagnostics monitor turn the power OFF before starting inspection or repair High capacity electrolytic capacitors are used inside the outdoor unit controller inverter They retain an electrical charge charging voltage DC 310V even after the power is turned OFF and some time is required for the charge to dissipate Be careful not to touch any electrified parts before the controller LED red turns OFF If the outdoor controller is normal approximately 30 seconds will be required for the charge to dissipate However allow at least 5 minutes for the charge to d
45. astic case metal electrodes inside taking care not to touch the electrodes plastic case During use the negative ion generator and other metal parts may become discolored this is normal and not indicative of malfunctioning If the dirt on and around the negative ion generator is left to build up a puffing or sputtering sound will eventually be heard In this case clean the generator immediately Do not apply excessive force while performing maintenance 23 Troubleshooting If your air conditioner does not work properly first check the following points before requesting service If it still does not work properly contact your dealer or service center Air conditioner does not run at all 1 Power failure 1 Restore power 2 Leakage circuit breaker tripped 2 Contact service center 3 Line voltage is too low 3 Consult your electrician or dealer 4 Batteries in remote control unit have 4 Replace batteries run down OPERATION lamp blinks and air Trouble in system Contact service center conditioner does not operate Compressor runs but soon stops Obstruction in front of condenser coil Remove obstruction Poor cooling performance 1 Dirty or clogged air filter 1 Clean air filter to improve airflow 2 Heat source or many people in room 2 Eliminate heat source if possible 3 Doors and or windows are open 3 Shut them to keep the heat out 4 Obstacle near air intake or air 4 Remove it to ensure good a
46. ation by 60 times faster than normal 3 Checking the serial communications Control 1 Control 2 X OFF Zj Blinking i Illuminated Initial self diagnostics Short circuit terminals 2 and 3 on Short circuit terminals 2 and 3 on the indoor unit terminal plate the outdoor unit terminal plate Probable location of malfunction Quiet Timer Operation Quiet Timer Operation Quiet Timer Operation 3 2 1 3 2 1 3 2 1 Failure open circuit contact failure etc Turn the power OFF before performing short circuiting procedures e Refer to the previous pages when performing system self diagnostics So that the check can be made quickly indicators blink at first communication after power ON Before performing the above checks perform TEST run operation and check that the rated voltage is output to terminals 1 and 2 on the outdoor unit lf it is not output there is a failure related to the indoor unit power 51 10 4 Trouble Diagnosis of Fan Motor 10 4 1 Indoor Fan Motor e This indoor DC fan motor contains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor e To perform diagnosis operate the unit in cooling mode with indoor fan speed High Next make sure that the indoor unit receive the signals from the remote controller when the ON OFF operation button is pressed Important A Turn
47. bient Temp Overload Relay Model Operation Temp Open 239 115 C Close 203 F 95 C Run Capacitor 202 Propeller Q ty Dia inch mm 1 D18 1 8 D460 8 Nominal o ooo Coil Resistance Ambient Temp 68 F 20 C Safety Device Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Heat Exchanger Coil Rows Fins per inch Face Area f m _External Finish Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE 2 3 Other Component Specifications Indoor Unit KS1872 KS2472 Outdoor Unit C1872 2472 CL1872 CL2472 Indoor heat exchanger sensor Model PTM D51H S3 1 Indoor air temp sensor Compressor temp sensor Model PTM D51H S3 TH2 Model TKS 293B EE 200 p 180 LLL E LLL LL LL ELA E EEEN fe En X 140 o0 9 p 100 C go 40 B L L P 0 2 zs bs O 32 50 68 86 104 122 140 158 176 194 0 10 20 30 40 50 60 70 80 90 P Temperature F C gt Temperature F C e Outdoor air temp sensor Model TKS295B Outdoor heat exchanger sensor Model TKS292B sss Resistance k ohm 4 5 14 23 32 41 50 59 68 20 15 10 5 0 S 10 15 20 Temperat
48. ded support Ina Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle In a Snowy Area for Heat Pump type Systems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When Connecting Refrigerant Tubing e Use the flare method for connecting tubing e Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection e Check carefully for leaks before starting the test run When Servicing e Turn the power off at the main power box mains before opening the unit to check or repair electrical parts and wiring e Keep your fingers and clothing away from any moving parts e Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced Others e Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic
49. drain hose have the shortest run to the outside Indoor unit TM For stable operation of the air conditioner do not install wall mounted type e allow room for operation and maintenance as well as unrestricted air flow around the unit Fig 1 i it withi i i Minimum height e install the unit within the maximum elevation indoorunits lessthan di difference H above or below the outdoor unit 5 1 5 m from floor level 5 1 5 m within a total tubing length L from the outdoor unit as detailed in Table 1 and Fig 2 Ela6rleval e Install the indoor unit more than 3 3 1 m away from any antenna power lines or connecting wires used is for television radio telephone security system or intercom Electrical noise from any of these sources may affect operation Table 1 Max Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of Length at Shipment Length L Difference H Additional Refrigerant a ft ft oz ft If total tubing length becomes 25 to 98 ft Max or 33 to 131 ft Max charge additional refrigerant R410A by 0 27 No additional charge of compressor oil is necessary 37 7 1 2 Outdoor Unit AVOID e heat sources exhaust fans etc Fig 4 e damp humid or uneven locations DO choose a place as cool as possible e choose a place that is well ventilated e allow enough room around the unit for air intake e
50. e timer does not operate buttons The air conditioner starts at the set time The air conditioner stops at the set time The air conditioner stops and starts or starts and stops at the set times every day For details see Setting the Timer Ol 800 9 EG 9 Remote Control Unit continued SENSOR button When you press this button use a small tipped object such as a ballpoint pen the W mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly NOTE If the remote control is located near a heat source such a space heater or in direct sunlight press the SENSOR button to switch to the sensor on the indoor unit This switches the temperature display between C and F This switches the time display between 24 hour time and 12 hour time Puts the remote control unit into pre operation status Always press this button after replacing the batteries ADDRESS switch The address switch changes to prevent mixing of signals from remote control units when two air conditioners are installed next to each other Normally the address switch is set to A For more information please contact the dealer where you made the purchase Normally the tabs on the remote control unit should not be bent NOTE The remote control unit sends the temperature signal to the air conditioner regularly at five minute
51. ector button NOTE The illustration above pictures the remote control unit after the cover has been opened Transmitter When you press the buttons on the remote control unit the mark appears the display to transmit the setting changes to the receiver in the air conditioner A temperature sensor inside the remote control unit senses the room temperature Display Information on the operating conditions is displayed while the remote control unit is switched on If the unit is turned off FLAP setting and FAN SPEED setting are not displayed This button is for turning the negative ions generated during operation on and off ON OFF operation button This button is for turning the air conditioner on and off 1 HR TIMER button When you press this button regardless of whether the unit is operating or 1 HOUR OFF TIMER stopping the unit operates for one hour and then shuts down 8 Ol 800 8 EG Remote Control Unit continued Temperature setting buttons Press the button to increase the set temperature TEMP Press the v button to reduce the set temperature The temperature setting changes by 1 C or 2 F each time one of the TEMP buttons is pressed QUIET button Wal When you press this button the fan rotates slower than the fan speed setting to provide a quieter operating sound MODE selector button Use this button to select DRY COOL FAN mode DRY The air conditio
52. enance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury or death Ground the unit following local electrical codes Connect all wiring tightly Loose wiring may cause overheating at connection points and a possible fire hazard When Transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Make sure the ceiling wall is strong enough to hold the unit s weight It may be necessary to construct a strong wood or metal frame to provide ad
53. entify whether the trouble is outdoor unit controller trouble or motor trouble Therefore first replace the outdoor unit controller then if necessary replace the DC motor 53 10 5 Noise Malfunction and Electromagnetic Interference An inverter A C operates using pulse signal control and high frequencies Therefore it is susceptible to the effects of external noise and is likely to cause electromagnetic interference with nearby wireless devices A noise filter is installed for ordinary use preventing these problems However depending on the installation conditions these effects may still occur Please pay attention to the points listed below 1 Noise malfunction This refers to the application of high frequency noise to the signal wires resulting in abnormal signal pulses and malfunction 1 Locations near broadcast stations where Either of the following trouble may occur The fundamental concept is to make the there are strong electromagnetic waves 1 The unit may stop suddenly during system less susceptible to noise 2 Locations near amateur radio short wave operation Insulate for noise or stations 2 Indicator lamps may flicker distance from the noise source 3 Locations near electronic sewing machines 1 Use shielded wires and arc welding machines 2 Move unit away from the noise source 2 Electromagnetic interference This refers to noise generated by high speed switching of the microcomputer and compresso
54. f the connector and push it in Confirm the click sound for the inside lock When the cover is pulled upward the lock is released with the sequence of 1 and 2 44 9 FUNCTIONS 9 1 Operation Functions Emergency operation Emergency operation is available when the remote controller malfunctions has been lost or otherwise cannot be used To operate the system press the OPERATION button which is also used as the receiver below the unit display Each time this button is pressed the OPERATION lamp changes color to indicate the type of operation Select the desired type of operation GREEN Lamp Off A The set temperature is 4 F 2 C below the detected room temperature in the case of cooling operation 45 SENSOR DRY During DRY operation the system adjusts the room temperature and fan speed according to the conditions in the room in order to maintain a comfortable room environment SENSOR DRY operation DRY operation is as shown in the figure below Load COOL zone Conditions are monitored at all times when the room temperature is below 59 F 15 C The compressor operation frequency varies The indoor fan operates with 1 f fluctuation The compressor operates at a low operating frequency The indoor fan operates with 1 f fluctuation Monitoring operation takes place when the room temperature is below 59 F 15 C or more than 5 F 3 C below the set temperature When the
55. failure 1 Fan motor failure 2 Contact failure at connector 3 Indoor circuit board failure 4 way valve switching failure 1 4 way valve failure heat pump model only E08 Indoor zero cross failure 4 circuit board failure No refrigerant protection 1 Service valve not opened 2 Shortage of refrigerant DC compressor drive circuit failure 1 Open phase 2 Outdoor circuit board failure Outdoor fan operating failure 1 Fan motor failure 2 Contact failure at connector 3 Outdoor circuit board failure Outdoor system communications failure Outdoor high pressure SW 1 Mis wiring 2 Blown fuse 3 Power relay failure 4 Open phase ri k lo 12 eu 5 Outdoor circuit board failure 6 Compressor failure Outdoor power supply open phase Outdoor coil freezing Freeze prevention operation activated 1 Indoor fan system failure 2 Shortage of refrigerant 3 Low temperature operation 49 1 HIC or power Tr failure 2 Outdoor fan does not turn 3 Instantaneous power outage 4 Service valve not opened 5 Outdoor fan blocked 6 Continuous overload operation 7 Compressor failure 8 Outdoor circuit board failure 2 If the self diagnostics function fails to operate Check the indoor unit Is the fuse blown Normal No indicators illuminate and the indoor fan does not rotate Check the power voltage Blown Replace the circuit board or the fuse Replace the controller 50
56. he fan rotates slower than the fan speed setting to provide a quieter operating sound ION Operation While it is operating the unit generates negative ions that freshen up the air in the room Anti Mold Filter This unit is equipped with an anti mold filter that Inhibits the growth of mold and bacteria Air Clean Filter An air filter that eliminates unpleasant odors and cleans the air is available Purchase a replacement filter at your local dealer model STK FDXB Ol 800 2 EG Contents Page FU I S sss 2 Product ieeduciu m 3 AISEES VD OIS Sc 3 installation LO CATON T 4 Electrical Requirements 4 Sale u u uuu eva a ea a a orb orr EEE Eao Daai 4 NAM S OF PAS ee E aa 5 Using the Remote Control 10 Operation with the Remote Control Unit 12 1 Operation 12 2 Adjusting the Fan Speed 13 592119 A ERNEUT 13 4 Night Setback Mode 14 5 OUIET E a 15 6 HIGH POWER Mod e e ape en enne 15 ZON oro Mn 15 uucdes dans
57. hipping b DATA SUBJECT CHANGE WITHOUT NOTICE Weight Net Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 7 Indoor Unit KS2472 Outdoor Unit C2472 lt 230V gt Voltage Rating 230V Single Phase 60Hz Performance Cooling Capacity BTU h 24 200 4 100 to 24 200 kW 7 1 1 2 to 7 1 Air Circulation High ft min Controls Temperature Control Microprocessor Thermister Control Unit Wireless Remote Control Unit 24 Hour ON or OFF Timer 1 Hour OFF Timer Airflow Direction Indoor Horizontal Vertical 8 355 Operation Sound Indoor Hi Me Lo Qt dB A 47 44 41 30 Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch mm Optional 7 Air Clean Filter Unit Dimensions Height Package Dimensions Height 112291032 379 Shipping ENC DATA SUBJECT TO CHANGE WITHOUT NOTICE Weight Net Remarks Rating conditions are Cooling Indoor air temperature 80 F 67 F W B Outdoor air temperature 95 F D B 75 F W B 8 Indoor Unit KS2472 Outdoor Unit C2472 Voltage Rating 208V Single Phase 60Hz Capacity BTU h 24 200 4 100 to 24 200 kW 7 1 1 2 to 7 1 Air Circulation High fE min Moisture Removal High Pints h Available Voltage Range Running Amperes lt 208V gt Power Factor SEER BT U W o 94 1 Compressor
58. id valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly When using a vacuum pump with exhaust air volume more than 0 883 cu ft min and ultimate vacuum pressure rate of 50 micron Hg Standard time for evacuation 1 Recover refrigerant OK 2 Replace compressor OK 3 Check for sealing OK 4 Evacuation OK 5 Recharge Length of tubing Less than 33 ft 10 m More than 33 ft 10 m More than 10 minutes More than 15 minutes 60 5 Recharging sure to charge the specified amount of refrigerant in liquid state using the service port of the wide tube service valve The proper amount is listed on the unit s nameplate When the entire amount cannot be charged all at once charge gradually while operating the unit in Cooling Operation CAUTION Never charge a large amount of liquid refrigerant at once to the unit This may cause damage to the compressor When charging with a refrigerant cylinder use an electronic scale for charging refrigerant In this case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the
59. igerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm 1 2 12 7 Refrigerant Tube Kit Accessories Optional Air Clean Filter Unit Dimensions Height 11 7 32 285 1 1 Weight Shipping DATA SUBJECT CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 10 Indoor Unit KS1872 Outdoor Unit CL1872 Voltage Rating 208V Single Phase 60Hz Capacity BTU h 17 600 4 100 to 17 700 kW 5 15 1 2 to 5 2 Air Circulation High fE min Moisture Removal High Pints h Available Voltage Range 187 to 253 Running Amperes 7 7 1 2 to 7 7 lt 208V gt 1 500 250 to 1 500 Power Factor SEER BT U W Compressor Locked Rotor Amperes A A Microprocessor Thermister Fan Speeds indoor Outdoor Airflow Direction Indoor Horizontal Vertical Ar Fite 7 DC Twin Rotary Inverter Ib kg R410A 2 87 1 3 9 1 2 Electric Expansion Valve Operation Sound Indoor Hi Me Lo Qt A 42 38 30 28 Qt Quiet mode Outdoor Hi 5 Flare Type Max allowable tubing length at shipment ft m 33 10 Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm 1 2 12 7 Refrigerant Tube Kit Accessories Optional Air Clean Filter Unit Dimensions Height 11 7 32 285 1 1 Weight Shipp
60. igerant is exposed to fire Therefore be sure to provide ample ventilation during installation work e Caution in case of R410A leak Check for possible leak points with the special leak detector for R410A If a leak occurs inside the room immediately provide thorough ventilation 58 12 3 Tools Specifically for R410A e For servicing use the following tools for R410A Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recovery unit Tools specifically for R410A Vacuum pump with anti reverse flow 1 Solenoid valve installed type which prevents oil from flowing back into the unit when the power is off is recommended Vacuum pump 2 be used if the following adapter is attached e Vacuum pump adapter reverse flow prevention adapter 3 Solenoid valve installed adapter attached to a conventional vacuum pump Electronic scale for charging refrigerant Flare tool Bender Tools which can be com Torque wrench monly used for R22 R407C and R410A Cutter reamer Welding tool nitrogen gas cylinder Nen e The above tools specifically for R410A must not be used for R22 and R407C Doing so will cause malfunction of the unit e For the above vacuum pump 1 2 and vacuum pump adapter 3 those for R22 type units can be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C e To prevent othe
61. ing DATA SUBJECT CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 11 Indoor Unit KS2472 Outdoor Unit CL2472 Voltage Rating 230V Single Phase 60Hz Capacity BTU h 24 200 4 100 to 24 200 kW 7 1 1 2 to 7 1 Air Circulation High fE min Moisture Removal High Pints h Available Voltage Range Running Amperes lt 230V gt Power Factor 7 5 SEER BTU W Compressor Locked Rotor Amperes A A 8 355 Microprocessor Thermister Fan Speeds indoor Outdoor Airflow Direction Indoor Horizontal Vertical Ar Fite DC Twin Rotary Inverter Ib kg R410A 4 30 1 95 Operation Sound Indoor Hi Me Lo Qt A 47 44 41 30 Max allowable tubing length at shipment ft m Refrigerant Narrow tube Inch mm Tube Diameter Wide tube mm Refrigerant Tube Kit Accessories Unit Dimensions Height Weight Shipping DATA SUBJECT CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 12 Indoor Unit KS2472 Outdoor Unit CL2472 Voltage Rating 208V Single Phase 60Hz Capacity BTU h 24 200 4 100 to 24 200 kW 7 1 1 2 to 7 1 Air Circulation High fE min Moisture Removal High Pints h Availab
62. irflow discharge port 5 Thermostat is set too high for cooling 5 Set the temperature lower Clicking sound is heard from the air In cooling operation any plastic parts This is normal and the sound will soon conditioner may shrink due to a sudden disappear temperature change In this event a clicking sound may occur OPERATION lamp lights but outdoor 1 The use of cellular phones nearthe 1 Turn off the power then restart the unit will not run air conditioner may cause air conditioner after a while disturbance to its normal operation 2 Consult your dealer Operating Range The air conditioner is operable within the temperature ranges as listed below For Cooling Only Models C1872 C2472 Temperature Indoor air temperature Outdoor air temperature COOLING Max 95 F DB 71 F WB 115 F DB Min 67 F DB 57 F WB 67 F DB For Low Ambient Cooling Models CL1872 CL2472 Temperature Indoor air temperature Outdoor air temperature COOLING Max 95 F DB 71 F WB 115 F DB Min 67 F DB 57 F WB 0 F DB 24 OI 800 24 EG For Parts Service Contact SANYO Fisher Service Company A Division of SANYO North America Corporation 1165 Allgood Road Suite 22 Marietta GA 30062 U S A Sanyo Canada Inc 1 300 Applewood Crescent Concord Ontario L4K 5C7 CANADA Jan 2006 T
63. issipate if there is thought to be any trouble with the outdoor controller 10 2 Method of Self Diagnostics lt Clock display gt Follow the procedure below to perform detailed trouble diagnostics E 54 imada 4 Self diagnostics mode 1 If the operation lamp blinks every 0 5 seconds immediately when the power is turned ON there is an external ROM OTP data failure on the indoor circuit board or a ROM socket insertion problem or the ROM has not been installed OOOO AIR CONDITIONER 38967 SET TEMP 2 The failure mode is stored in memory even when the power is not ON Follow the procedure below to perform diagnostics PROCEDURE ON OFF operation After turning on power to the air conditioner use the remote controller and y a button follow the steps below to execute self diagnostics Step 1 Press and hold the remote controller ION button and 1 HR TIMER button At the same time press the ACL reset button Use a pointed object such as the tip of a pen to press the ACL button When this has been done oP 1 test run appears blinking in the remote controller clock display area Step 2 Next press the 1 HR TIMER button once to change the display from oP 1 to oP 3 self diagnostics The display continues to blink Step 3 Finally press the ON OFF button to engage self diagnostics mode TIMER button QUIET MODE CED FAN SPEED NIGHT SETBACK FLAP
64. l Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output C 6RVN93H0M 1 050W Compressor Oil Amount Pints cc FV50S 0 74 350 Coil Resistance Ambient Temp 68 F 20 C Ohm Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Overload Relay Model Operation Temp Open 239 F 115 C Close 203 F 95 C Run Capacitor Micro F 0 7 2 22 Crankcase Heater Safety Device CT Peak current cut off control Yes Yes Yes Propeller Q ty Dia inch mm 1 D16 17 32 D420 NoofPoes Coil Resistance Ohm HED WHT 77 5 Ambient Temp 68 F 20 C WHT BLU 77 5 BLU RED 77 5 Safety Device Type Internal Controller Over Current Protection Run Capacitor S Heat Exchanger Coil Coil Rows Fins per inch Face Area f m ExemalFiish Acrylic baked on enamel finish 18 DATA SUBJECT TO CHANGE WITHOUT NOTICE Outdoor Unit CL2472 Control PCB CB CL2472 Control Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output G8T265FU1JW 2 410W Compressor Oil Amount Pints cc FV50S 1 49 700 Coil Resistance Ambient Temp 77 F 25 C Ohm Safety Device CT Peak current cut off control Compressor Discharge Temp Control Operation cut off control in abnormal am
65. le Voltage Range Running Amperes lt 208V gt Power Factor 7 5 SEER BTU W Compressor Locked Rotor Amperes A A 1 355 Microprocessor Thermister Fan Speeds indoor Outdoor Airflow Direction Indoor Horizontal Vertical Ar Fite DC Twin Rotary Inverter Ib kg R410A 4 30 1 95 Operation Sound Indoor Hi Me Lo Qt A 47 44 41 30 Max allowable tubing length at shipment ft m Refrigerant Narrow tube Inch mm Tube Diameter Wide tube mm Refrigerant Tube Kit Accessories Unit Dimensions Height Weight Shipping DATA SUBJECT CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 75 F W B 13 2 2 Major Component Specifications 2 2 1 Indoor Unit Indoor Unit KS1872 Control PCB Part No CB KS1872 Controls Control Circuit Fuse 250V 3A Remote Control Unit RCS 4VPIS4U Q ty Dia and Length inch mm 1 D3 11 16 L33 9 32 D94 L845 8 j Nominal Output W Coil Resistance Ohm Temp 68 F 20 C s Safety Device Over Current Protection Over Heat Protection Run Capacitor Micro F Flap Motor Type Stepping Motor MP24Z3 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 7 Ambient Temp 77 F 25 C Heat Exchanger Coil Fins per inch Face
66. matic capacity control When the temperature drops below Point A the operation frequency is reduced by a certain proportion Area Frequency increase is prohibited When the temperature reaches Point C or above freezing prevention is ended and control is the same as in the a area When the temperature drops to below 4 F 2 C continuously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will work less than the maximum frequency until it is turned off 3 models only The Freeze Prevention Control during the Low Ambient Cooling Mode outside air temperature 59 F 15 C or lower is as follows compressor stops when the temperature of indoor heat exchanger becomes less than 36 F 2 C compressor restarts when the temperature of indoor heat exchanger becomes 46 F 8 C or higher 47 Compressor discharge temperature control This function controls the operation frequency to prevent the compressor discharge temperature from rising more than a specified temperature Compressor discharge temperature F C Approx 214 101 Approx 201 94 a Area Automatic capacity control When the temperature rises above Point A the operation frequency is reduced at a specified rate Area Further frequency increase is prohibited When the temperature falls below Point B prevention of a rise in frequency is released and the
67. mote control unit to the mount by passing a string through the remote control unit and attachment hole To take out the remote control unit pull it forward When Holding the Remote When using the remote control unit and during air conditioner operation the Control Unit transmitter on the remote control unit should be pointed toward the receiver on the indoor unit e Make sure that there are no objects between the remote control unit and receiver which could block the signal Ol 800 11 EG 11 Operation with the Remote Control Unit 1 Operation Len 24 7 9 AM Ayt ri STEP 1 FLAP HIGH POWER NOTE Check that the circuit breaker on the power panel is turned on Press the setting buttons as described below and change the settings as desired Press the MODE selector button and select the desired mode For dehumidifying operation gt For cooling operation gt For fan only operation 99 2 start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 30 C max or 86 F max 16 C min 60 F min STEP 4 Set the FAN SPEED selector button to the setting you want STEP 5 Press the FLAP button and set the airflow direction as desired Refer to Adjusting the Airflow Direction on page 20 To stop the air conditioner press the ON OFF operatio
68. n above charts indicate the following rating conditions Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 28 5 2 Air Throw Distance Charts Indoor Unit KS1872 Room air temp 80 F 26 7 C 9 High Horizontal distance ft 5 10 Axis air velocity ft sec Vertical distance ft Flap angle 0 Flap angle 30 29 15 20 25 Axis air velocity 0 Axis air velocity 30 Indoor Unit Axis air velocity ft sec Vertical distance ft KS2472 Room air temp 80 F 26 7 C Fan speed High Horizontal distance ft 15 20 25 30 Flap angle 0 Flap angle 30 30 Axis air velocity 0 Axis air velocity 30 6 ELECTRICAL DATA 6 1 Electrical Characteristics Indoor Unit KS1872 Outdoor Unit C1872 Cooling Indoor Unit Outdoor Unit Beslan Fan Motor Fan Motor Compressor P Performance at 230V Single phase 60Hz Rating conditons Running amp Power input 1 468 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 W B Outdoor air temperature 95 F 35 C Cooling lt 208V gt Outdoor Unit Complete Unit Fan Motor Compressor Performance at 208V Single phase 60Hz Rating conditions Running amp Power input Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B
69. n button again 12 OI 800 12 EG Operation with the Remote Control Unit continued NOTE e Choose the best position in the room for the remote control unit which also acts as the sensor for room comfort and transmits the operating instructions Once you ve found this best position always keep the remote control unit there e This appliance has built in 5 minute time delay circuit to ensure reliable operation When the operation button is pressed the compressor will start running within three minutes In the event of power failure the unit will stop 2 Adjusting the Fan Speed A Automatic fan speed Simply set the FAN SPEED selector button to the 5 position This automatically sets the best fan speed for the room temperature B Manual fan speed If you want to adjust fan speed manually during operation just set the FAN SPEED selector button as desired 3 8 3 Fan Only ON I OFF O STEP 2 1HR e CV 1A QUIET MODE STEP 1 FAN SPEED NIGHT SETBACK STEP 3 FLAP HIGH POWER If you want to circulate air without any temperature control follow these steps STEP 1 Press the MODE selector button to switch to the fan mode 96 STEP 2 Press the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice 9 800 13 13 Operation with the Remote Control Unit continued 4 Night Setback Mode Night Setback
70. n in an extreme case Do not turn the air conditioner on and off from the power mains switch N CAUTION Use the ON OFF operation button Do not stick anything into the air outlet of the outdoor unit This is dangerous because the fan is rotating at high speed Do not let children play with the air conditioner Do not cool the room too much if babies or invalids are present Ol 800 4 EG Names of Parts pi Intakes INDOOR UNIT L EN Air outlet os E Remote control unit 1 X Drain hose c e Lii Refrigerant tubes OUTDOOR UNIT Air outlet NOTE This illustration is based on the external view of a standard model Consequently the shape may differ from that of the air conditioner which you have selected This air conditioner consists of an indoor unit and an outdoor unit You can control the air conditioner with the remote control unit Air Intake Air from the room is drawn into this section and passes through air filters which remove dust Conditioned air is blown out of the air conditioner through the air outlet Remote Control Unit The wireless remote control unit controls power ON OFF operation mode selection temperature fan speed timer setting and air sweeping Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows Drain Hose Moisture in the room condenses and drains off through this hose
71. ner reduces the humidity in the room COOL The air conditioner makes the room cooler The air conditioner works only as a circulation fan FAN SPEED selector button The air conditioner automatically decides the fan speeds High fan speed Medium fan speed Low fan speed NIGHT SETBACK button For details see 4 Night Setback Mode When you press this button in the DRY or COOL mode the mark appears in the display and the remote control unit will automatically adjust the set temperature to save energy FLAP button Press this button either to select the setting of the airflow direction to the auto flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically 6 Auto flap setting If selected in a cooling or dry operation the flap is set at position 7 in the following chart The airflow direction can be set manually six positions The flap moves up and down automatically NOTE When you press the FLAP button the air flow direction will be changed one by one as follows 1 2 S 4 5 6 7 8 NB Tv A Moe BAS 55922 SWEEP HIGH POWER button If this button is pressed during DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High ON TIME OFF TIME setting No display Th
72. nit press its bottom right and left corners as well as its bottom center into place NOTE Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit 22 01 800 22 Air Clean Filter A How to install the air clean filter How to clean the air clean filter NOTE Cleaning the main unit and remote control unit Removing and remounting the air intake grille N Washing the grille with water Cleaning the negative ion Ol 800 23 EG generator A Care and Cleaning continued The air clean filter removes dust and dirt from the air and reduces odors and smoke from tobacco This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room You must open doors or windows frequently when you use gas or oil heating appliances Otherwise there is a risk of suffocation in extreme cases The air clean filter needs to be installed behind the air intake grille 1 2 3 Remove the air intake grille Install the air clean filter in the position shown in the figure Remount the air intake grille HE Air clean filter In general the filter should be sucked to remove dust in low fan speed of a vacuum cleane
73. ons are provided below refer to these descriptions when using the air conditioner Microprocessor Controlled Operation The interior compartment of the remote control unit contains several features to facilitate automatic operation easy logically displayed for easy use Simple One touch Wireless Remote Control The remote control unit has several features to facilitate automatic operation 24 Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time within a 24 hour period 1 Hour OFF Timer This timer can be set to automatically turn off the unit at any time after one hour Night Setback Pressing this button changes the setting of the room temperature thermostat allowing you to set the temperature at whatever level that you find comfortable Automatic and 3 step Fan Speed Auto High Medium Low Air Sweep Control This function moves a flap up and down in the air outlet directing air in a sweeping motion around the room and providing comfort in every corner Auto Flap Control This automatically sets the flap to the optimum position during cooling and drying operation Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes High Power Operation The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Quiet Operation T
74. or address setting 6 Press the ON OFF operation button on the remote controller Fig 15 Check that the beep signal received sound is heard from the second indoor unit approximately 5 times The sound you hear is the signal that the remote controller address has been changed 7 Finally press the remote controller ACL reset button to cancel the blinking oP 7 display Fig 15 Changing of the second remote controller address is now completed 43 ACL button Fig 14 OOOO OOOO AIR CONDITIONER D 9 x E Ses 2885 M m 4 e ur EE ON OFF operation button TEMP TIMER button QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER CANCEL SENSOR 12 24 aor CO ACL Reset button 8 2 Disconnecting and Connecting Positive Connector for Outdoor Unit One of the two types of connectors illustrated at left is used Their basic structure is the same for each How to Disconnect Hold the resin connector cover and pull the connector off You cannot disconnect the connector by pulling the wire since it is locked inside Always hold the cover to disconnect See illustration at left For the connector without the resin cover push the lock in the direction of 2 while pulling it off Pull the cover upward How to Connect In order to connect hold the resin cover o
75. ouble in the system that provides feedback of motor rotation speed from the motor to the indoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during indoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during indoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is indoor unit controller trouble or motor trouble Therefore first replace the indoor unit controller then if necessary replace the DC motor 52 10 4 2 Outdoor Fan Motor e This outdoor DC fan motor contains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor perform diagnosis follow the instructions in 2 Checking the Outdoor Unit on the previous page and set the outdoor unit to Test Run mode compressor ON outdoor fan motor ON Important A Turn OFF the power before connecting or disconnecting the motor connectors B When performing voltage measurement at the outdoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 10 seconds after operation is started For this reason to measure the voltage again first turn OFF the outdoor unit power then follow the instructions in Checking the Outdoor Unit and again set the unit to Test Run mode Trouble symptom 1 fan does not stop when
76. out the installation Table 2 lists recommended wire lengths and diameters for power supply systems NOTE Refer to the wiring system diagram Fig 6 for the meaning of A B and C in Table 2 Refer to your local codes or in the absence of local codes see the National Electric Code ANSI NFPA70 Table 2 B Power Line Length ft 14 A HB A Power Supply Wiring Length ft C Control i Line Length ft Fuse or Circuit C1872 C2472 CL1872 CL2472 131 Max 14 Breaker Capacity 65 Max e Be sure to comply with local codes running the wire from the indoor unit to the outdoor unit size of wire and wiring method etc e Each wire must be firmly connected e No wire should be allowed to touch refrigerant tubing the compressor or any moving part Kn e To avoid the risk of electrical shock each air conditioner unit must be grounded e For the installation of a grounding device please observe local electrical codes e Grounding is necessary especially for units using inverter circuits in order to release charged electricity and electrical noise caused by high tension Otherwise electrical shock may occur e Place a dedicated ground more than 7 2 m away from other grounds and do not have it shared with other electric appliances CAUTION AWG American Wire Gauge WIRING SYSTEM DIAGRAM INDOOR UNIT ace Fig 6
77. points OK 4 Check for sealing OK 5 Evacuation OK 6 Recharge Length of tubing Less than 33 ft 10 m More than 33 ft 10 m More than 10 minutes More than 15 minutes 6 Recharging e Recharge unit in the same manner explained on the previous page 5 Recharging 62 12 7 Charging Additional Refrigerant 12 7 1 When Tubes are Extended Observe the proper amount of refrigerant as stated in this service manual the installation manual that came with the indoor unit Charge additional refrigerant in liquid state only Never charge additional refrigerant if refrigerant is leaking from the unit Follow instructions given in 12 6 In Case Refrigerant is Leaking and completely carry out repairs Only then should you recharge the refrigerant 12 8 Retro Fitting Existing Systems 12 8 1 Use of Existing Units e Never use new refrigerant R410A for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 12 8 2 Use of Existing Tubing e If replacing an older unit that used refrigerant R22 with a R410A unit do not use its existing tubing Instead completely new tubing must be used 63 APPENDIX INSTRUCTION MANUAL KS1872 C1872 CL1872 KS2472 C2472 CL2472 Ol 852 6 4180 800 00 0 64 Features This air conditioner is an inverter type unit that automatically adjusts capacity as appropriate Details on these functi
78. ppears in the display Cancellation procedure Press the ON OFF operation button to turn the unit off wait for the unit to stop operating and then press the ON OFF operation button again The 1 Hour Timer function is now cancelled and the unit operates normally f while the 1 Hour Timer function is operating the 1 TIMER button is pressed once to cancel the function and then again the unit continues to operate for one hour from that point in time and then stops e tis not possible to use the OFF Timer and 1 Hour OFF Timer together Whichever function is set last takes precedence If the 1 HR TIMER button is pressed while the TIMER OFF function operates the OFF Timer is cancelled and the unit will stop operating one hour later 2 Operation together with the The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT DAILY ON OFF REPEAT Timer setting Tips for Energy Saving Do not Block the air intake and outlet of the unit If they are obstructed the unit will not work well and may be damaged e Let direct sunlight into the room Use sunshades blinds or curtains If the walls and ceiling of the room are warmed by the sun it will take longer to cool the room Do Always try to keep the air filter clean Refer to Care and Cleaning clogged filter will impair the performance of the unit To prevent conditioned air from escaping keep windows doors and any other openings closed
79. r This noise radiates through space and returns to the electric wiring affecting any wireless devices televisions radios etc located nearby 1 A television or radio is located near the 1 Noise appears in the television picture 1 Select a separate power source A C and A C wiring or the picture is distorted Keep the A C and A C wiring at least 1 meter 2 The antenna cable for a television or 2 Static occurs in the radio sound away from wireless devices and antenna cables is located close to the Change the wireless device s antenna to a high IEN sensitivity antenna 3 Locations where television and radio Change the antenna cable to a BS coaxial cable signals are weak Use a noise filter for the wireless device Use a signal booster 54 11 CHECKING ELECTRICAL COMPONENTS 11 1 Measurement of Insulation Resistance M Clip The insulation is in good condition if the resistance 4 exceeds 1 ohm AN J j C Ground wire Probe 11 1 1 Power Supply Cord qu Insulation Clamp the grounding wire of power cord with the lead Fig 1 tester clip of the insulation resistance tester and measure the Terminal plate resistance by placing a probe on either of the two power wires Fig 1 Then also measure the resistance between the grounding and other power terminals Fig 1 11 1 2 Indoor Unit Clamp an aluminum
80. r once every three months If there is heavily grime on the filter soak the filter in lukewarm water with neutral detergent diluted 1 500 for 1 to 2 minutes then wash it Rinse the filter in clean water then let it dry on the towel in room temperature Do not bend nor give excessive force onto the air clean filter If the filter surface is heavily blocked with dirt or damaged replace it with new one Purchase a replacement filter at your local dealer model STK FDXB Wipe clean using a soft dry cloth To remove stubborn dirt moisten a cloth in warm water no hotter than 104 F wring thoroughly and then wipe The air intake grille can be removed in order to wash it with water Refer to How to remove the anti mold filter and How to replace the anti mold filter on page 22 When using a footstool or the like be careful not to let it tip over Clean the grille gently using a soft sponge or the like Then wipe away any remaining moisture Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and wipe away any remaining moisture Follow the steps below when the generator has become dirty For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning Remove the dust on the negative ion generator Use a toothbrush etc to dust off the end Use a cotton swab etc to clean around Negative ion generator the generator inside the pl
81. r refrigerants R22 R407C from being mistakenly charged to this unit shape and external diameter of the service port screw has been altered External diameter of service port R410A 5 16 R22 R407C 1 4 12 4 Tubing Installation Procedures When the tubes are connected always apply HAB oil on the flare portions to improve the sealing of tubing The following is the HAB oil generally used Esso ZERICE 532 For details on tubing installation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 59 12 5 In Case of Compressor Malfunction CAUTION e Should the compressor malfunction be sure to make the switch to a replacement compressor as quickly as possible Use only the tools indicated exclusively for R410A See 12 3 Tools Specifically for R410A 12 5 1 Procedure for Replacing Compressor 1 Recovering refrigerant Any remaining refrigerant inside the unit should not be released to the atmosphere but recovered using the refrigerant recovery unit for R410A e Do not reuse the recovered refrigerant since it will contain impurities 2 Replacing Compressor e Soon after removing seals of both discharge and suction tubes of the new compressor replace it quickly 3 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 4 Evacuation e Use a soleno
82. t of the indoor unit RHA WY SHAT WA HU HMMM Monta EAHA HSI NANT Pin Groove 42 8 MAINTENANCE 8 1 Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo indoor units are installed near each other The address is normally set to A To set a different address it is necessary to change the address on the second remote controller NOTE Once changed you cannot restore the original address setting of the air conditioner 1 Switch on the power source 2 Break the address setting tab marked A on the second remote controller to change the address Fig 13 When the tab is removed the address is automatically set to B Fig 14 3 Press and hold the remote controller ION button and 1 HR TIMER button At the same time press the ACL reset button Use a thin object such as the tip of a pen to press the ACL button When this has been done oP 1 test run appears blinking in the remote controller clock display area 4 Each time the 1 HR TIMER button is pressed the display changes as shown below Press this button 2 times to change the display to 7 address setting Fig 15 b run mode iw w al O Self diagnostic mode Q 4 Address setting mode 2 w 5 oP 7 has now been selected f
83. the 3 screws Fig 9b 3 Remove the screw on the right side cover plate and 9s open the cover Fig 10a 4 Take out the thermistor from the grille Fig 10b b Press the 3 tabs at the top of the grille and the 3 Thermistor tabs the front face to separate the grille from the frame Fig 11a 6 Pull the grill toward you to remove it Fig 9b How to replace the grille 1 When installing the grille place the bottom of the grille into the frame first Fig 11b Then insert the tabs on the top of the grille and on F the front face into the frame 2 sure that the grille and frame firmly fitted GE gt 72 An together by engaging the tabs Z i se 3 Attach the thermistor on the grille Fig 10a N i en 4 Close the cover and replace the screw Fig 10a NNN R _ 5 Affix the grille with the 3 previously removed screws se UU Fig 9b lt SSS 6 Install the air intake grille a Allow the edge of the air intake grille to slide into the top of the indoor unit and then insert it all the way inside Fig 12a b Press the bottom right and left corners and center of the air intake grille to attach it to the indoor unit Fig 120 Attach so that the round pins at the top right and left cor ners of the air intake grille are inserted into the grooves at Fig 11b the top right and lef
84. ure F 20 3 DIMENSIONAL DATA KS1872 Indoor Unit L N O1 C2 N KS2472 6 2 4 81 0 esou 9111 81 CE EG LL QL SL LV G 9 v L eip ELVESM 88 GL 8 G c4819M 07 ZL 2 L elp oan o MPM re CE EC LL 26766 11 6 6 862 lt 2 Unit inch mm 21 Outdoor Unit C1872 CL1872 23 15 16 5 11 32 11 17 32 Wide tube service valve dia 1 2 12 70 Narrow tube service valve dia 1 4 6 35 34 21 32 880 Unit inch mm 22 C2472 Outdoor Unit CL2472 CE L Lvl CEe 6L EL 028 ZE 6 L ZL 5 11 32 23 15 16 11 17 32 Narrow tube service valve dia 1 4 6 35 Wide tube service valve dia 5 8 15 88 35 7 16 900 OvZ 8 1 62 CE 6C 9 2 7 8 Unit inch mm 23 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Indoor Unit KS1872 Outdoor Unit C1872 C2472 KS2472 CL1872 CL2472 Indoor unit Outdoor unit x x Wide tube service Wide tube valve Accumulator Muffler 1 High pressure switch Heat exchanger N Electric be expansion une valve service Narrow tube valve Heat exchanger Ean p DP S 6 35 mm c Cooling cycle 1 O D 1 2 12 7mm 1872 class O D 5 8 15 88mm gt 2472 class Insulation of Refrigerant Tubing IMPORTANT
85. ure 95 F D B 25 Indoor Unit KS1872 Outdoor Unit 1872 Cooling Characteristics 230V 159 2 5 1 1 Sa oz O bel CQ 145 1 0 Q 131 09 2 117 G 08 o 7 86 95 25 30 35 40 Outdoor inlet air D B temp F C 9 lt 8 5 o O 7 Q O 6 77 86 25 30 88 40 Indoor discharge air temperature F C 86 95 25 30 35 40 Outdoor inlet air D B temp F C NOTE e Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 9 2 Overload prevention during heating Points of rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 80 F D B 67 F W B Outdoor air temperature 95 F D B 26 Indoor Unit KS2472 Outdoor Unit C2472 Cooling Characteristics 230V _ 159 1 1 Sa D LT 145 Yn 1 0 2 S 131 09 C gt 117 Q 0 8 7 86 95 25 30 35 40 Outdoor inlet air D B temp F C Ve z 5 o O Q O 77 86 95 25 30 35 40 Outdoor inlet air D B temp F C Indoor discharge air temperature F C
86. xhaust and possible maintenance Fig 5a or 5b e provide a solid base level concrete pad concrete block 4 x 1 4 10 x 40 or 6 x 14 15 x 40 cm beams or equal a minimum of 4 10 cm or 6 15 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life Fig 5c or 5d e Install cushion rubber under unit s feet to reduce vibration and noise Fig 5e e use lug bolts or equal to bolt down unit reducing vibration and noise e Install in a location where no antenna of a television or radio exists within 10 3 m C1872 CL1872 Air intake Anchor bolts 4 pcs N NN IN WW FA V WAY N N M 11 WAWN AUN NN WWW NN NIN N Nun AN ml a M NW ANI N WAN N NI y NW 5 M ANN Concrete or equal N N Anchor bolts 4 pcs z 24 WAN NY IX W QW NW Mill Ml N NW W N N WW NIN N INS PY f Ami H Air inta AN AK AN N Nin AN N N W WWW SAN V AAN Concrete or equal V y Mi WW Min 4 10 cm Min 6 15 cm 38 NO 7 Outdoor
87. y out repairs then recharge the refrigerant 1 Detecting Leaks Use the detector for R410A to locate refrigerant leak points 2 Recovering refrigerant e Never release the gas to the atmosphere recover residual refrigerant using the refrigerant recovery unit for R410A instead e Do not reuse the recovered refrigerant because its composition will have been altered 3 Welding leaking points e Confirm again that no residual refrigerant exists in the unit before starting welding e Weld securely using flux and wax for R410A Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 5 Evacuation e Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 0 883 cu ft min and ultimate vacuum pressure rate of 50 micron Hg Standard time for evacuation 1 Detect leaks OK 2 Recover refrigerant OK 3 Weld leaking

Sanyo C2472 Air Conditioner User Manual

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