Panasonic CS-A182KR Service Manual
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Order No: MAC0105013C3
Room Air Conditioner
CS-A182KR CU-A182KR / CS-A242KR CU-A242KR
1. Features
- High Efficiency
- High Efficiency Airflow Circuit
- Compact Design
- Removable and Washable Front Panel
- Auto Restart after Power Failure
1

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Summary of Contents for Panasonic CS-A182KR

  • Page 1 Order No: MAC0105013C3 Room Air Conditioner CS-A182KR CU-A182KR / CS-A242KR CU-A242KR 1. Features - High Efficiency - High Efficiency Airflow Circuit - Compact Design - Removable and Washable Front Panel - Auto Restart after Power Failure...
  • Page 2 - Long Piping up to 25m - Deodorizing Control during operation - Cold draught Control 2. Functions 3. Product Specifications Unit CS-A182KR CU-A182KR Cooling Capacity 5.20 - 5.15 Btu/h 17,700 - 17,600 Heating Capacity 6.20 - 6.15 Btu/h 21,100 - 21,000...
  • Page 3 Air Volume Indoor Air (Lo) — /min (cfm) Cooling ; 11.2 (395) Heating ; 11.6 (409) Indoor Air (Me) — /min (cfm) Cooling ; 12.4 (437) Heating ; 12.9 (455) Indoor Air (Hi) — /min (cfm) Cooling ; 13.7 (480) Heating ;...
  • Page 4 Net Weight lb (kg) 29 (13) 141 (64) Compressor Type — Rotary (1 cylinder) rolling piston Motor Type — Induction (2 Rated Output — Air Circulation Type Cross-flow Fan Propeller Material AS + Glass Fiber 30% PC + AES + Glass Motor Type Transistor (4-poles)
  • Page 5 improvement. Unit CS-A242KR CU-A242KR Cooling Capacity 6.45 - 6.40 Btu/h 22,000 - 21,800 Heating Capacity 7.80 - 7.65 Btu/h 26,600 - 26,100 Moisture Removal Pint/h Power Source Phase Single 240 - 230 Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE Air Volume Indoor Air (Lo)
  • Page 6 Noise Level dB (A) Cooling; High 47 - 47, Low Cooling ; High 41 - 41 Heating ; High Heating; High 46 - 46, Low 41 - 41 (Power (Cooling ; 60, Heating ; 59) (Cooling ; 76, Heating Level dB) Electrical Data Input Cooling ;...
  • Page 7 Air Circulation Type Cross-flow Fan Propeller Material AS + Glass Fiber 30% PC + AES + Glass Motor Type Transistor (4-poles) Induction (4 Input 72.2 191.0 Rated Output 720 - 680 Cooling ; 1,100 Heating ; Speed 1,200 Medium — Cooling ;...
  • Page 9 5. Refrigeration Cycle Diagram 6. Block Diagram...
  • Page 10: Wiring Diagram

    7. Wiring Diagram...
  • Page 11: Operation Details

    8. Operation Details 8.1. Cooling Mode Operation Cooling in operation according to Remote Control setting. Time Delay Safety Control (3 minutes)
  • Page 12 - When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed. - When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
  • Page 13 - Fan speed rotates in the range of Hi to Me. - Deodorizing Control. Cooling Operation Time Diagram...
  • Page 14 8.2. Soft Dry Mode Operation - The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and then Soft Dry operation will start. - During Soft Dry operation, the Indoor Fan operates with SLo speed. - Once room temperature reaches below Soft Dry OFF temperature.
  • Page 15 stops.) / Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during Soft Dry operation. - Fan speed rotates at SLo speed. - Deodorizing Control. Soft Dry Operation Time Diagram...
  • Page 16 8.3. Heating Mode Operation - Heating in operation according to Remote Control setting. Time Delay Safety Control - When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed.
  • Page 17 - If the temperature of the Outdoor Heat Exchanger less than -3°C, Outdoor Fan is ON. The Outdoor Fan stop, when Outdoor Heat Exchanger temperature is T or more according to Outdoor Air Temperature region as table below: During starting of Heating mode and after deice, Outdoor Fan ON for 90 sec (Hi). - If the indoor heat exchanger becomes 68°C or more, the compressor will stop and restart automatically.
  • Page 18 Hot Start is completed when indoor heat exchanger rises to 42°C. Maximum Hot start duration = 4 minutes. After 4 minutes, Hot start operation will be shifted to normal Heating operation. Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during heating operation.
  • Page 19 Heating Operating Time Diagram...
  • Page 20 Deicing Control Deice starts to prevent frosting at outdoor heat exchanger. - Normal Deicing Deice operations detection commences in Heating operation starts or 60 minutes after previous deice operation. If the outdoor piping temperature drops to -4°C or 50 sec. continuously during compressor is in operation, deice will start.
  • Page 21 b) Overload Deicing Time Diagram 8.4. Automatic Mode Operation...
  • Page 22 a) When the Automatic Mode Operation is selected, the indoor fan operates at SLo fan speed for 20 sense intake air temperature and determine the 1st operation mode. b) Operation mode will be determined again after 1 hour of operation, if the room temperature reaches temperature and compressor off timer is over 7 minutes 30 seconds continuously.
  • Page 23 Higher Standard Lower Operation Mode (+2°C) (±0°C) (-2°C) Cooling 27°C 25°C 23°C Soft Dry 24°C 22°C 20°C Heating 23°C 21°C 19°C 8.5. Sleep Mode Auto Operation Cooling or Soft Dry Operation When you press the SLEEP Mode, the following movement will start to avoid overcooling. - The fan speed refer to Indoor Fan Motor Control.
  • Page 24 8.6. Auto Restart Control - If there is a power failure, operation will be automatically restarted when the power is resumed. / It will start with previous operation mode and airflow direction. / (Time Delay Safety Control is valid) - Auto Restart Control is not available when Timer or Sleep Mode is set.
  • Page 25 Fan Speed High Speed Low Speed Manual Cooling Auto Sleep Soft Dry Manual, Auto Sleep Manual (A182K) Heating Manual (A242K) Auto Sleep Voltage to Fan CS-A182K 44.0 42.0 36.3 31.2 25.3 21.0 Motor Drive Transistor CS-A242K 52.8 47.8 41.4 36.3 28.0 21.1 (DCV)
  • Page 26 The left and right airflow direction louvers can be adjusted manually. There is no swinging while indoor fan is stopped during Cooling and Soft Dry operation. In Heating operation, when the indoor heat exchanger temparature rises to 38°C, the airflow direction is changed from upper limit to lower limit.
  • Page 27: Installation Instructions

    - For Cooling and Soft Dry mode, the operation will start, 15 minutes before the set time. - For Heating mode, the operation will start 30 minutes before the set time. - For Automatic mode, the indoor fan will operate at SLo speed for 20 seconds, 30 minutes before the set time to detect the intake air temperature to determine the operation mode.
  • Page 28 important contents are related to safety. The meaning of each indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications. This indication shows the possibility of causing death or serious injury. This indication shows the possibility of causing injury or damage to properties The items to be followed are classified by the following symbols: Symbol with background white denotes item that is PROHBITED from doing.
  • Page 29 8. When carrying out piping connection, take care not to let air or other substances other than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal pressure in the refrigeration cycle, explosion and injury. 9. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.
  • Page 30 Attached accessories Accesories: Flaring piping kit CZ-4F5, 7, 10AN CZ-52F5, 7, 10AN SELECT THE BEST LOCATION INDOOR UNIT - There should not be any heat source or steam near the unit. - There should not be any obstacles blocking the air circulation. - A place where air circulation in the room is good.
  • Page 31 hot discharged air. - Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles. - Do not place any obstacles which may cause a short circuit of the discharged air. - If piping length is over 10m, additional refrigerant should be added as shown in the table.
  • Page 32: Indoor Unit

    - This illustration is for explanation purposes only. / The indoor unit will actually face a different way. 10.2. INDOOR UNIT 10.2.1. SELECT THE BEST LOCATION / (Refer to “Select the best location” section) 10.2.2. HOW TO FIX INSTALLATION PLATE The mounting wall is strong and solid enough to prevent it from the vibration.
  • Page 33 : Unit centre should be at more than 540 mm at right and left. The height should be more than 195 mm from the ceiling. : From installation plate end to unit left side end is 40 mm. : From installation plate end to unit right side end is 50 mm.
  • Page 34: Indoor Unit Installation

    10.2.4. INDOOR UNIT INSTALLATION 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping...
  • Page 36 (This can be used for left rear piping and left bottom piping also)
  • Page 37: Connect The Cable To The Indoor Unit

    10.2.5. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 × 2.5 mm flexible cord, type designation H05 RN-F or heavier cord.
  • Page 38 INSTALLATION OF AIR PURIFYING FILTERS 1. Open the front panel. 2. Remove the air filters. 3. Hold the purifying filters by their tabs and install as shown in the illustration at below.
  • Page 39 HOW TO TAKE OUT FRONT GRILLE Please follow below steps to take out front grille if necessary such as when servicing. Remove the Grille from the chassis. 1. Set the up-and-down air direction louver to open position (horizontally) by finger pressure. 2.
  • Page 40: Outdoor Unit

    2. In order to operate separately, open the rear cover of one of the remote controller and set the switch to “B”. 3. Also, set the remote control No. switch to “B” in the corresponding indoor unit. / (The switch is located in the control box-sub.
  • Page 41 - Align the center of piping and sufficiently tighten the flare nut with fingers. - Further tighten the flare nut with torque wrench in specified torque as stated in the table. Model Pipe size Torque A182KR, A242KR Liquid Side 1/ 18 N.m 4”...
  • Page 42: Evacuation Of The Equipment

    pipes. 10.3.4. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. If air remains in the indoor unit and refrigeration pipes, it will affect the compressor, reduce to cooling capacity, and could lead to a malfunction.
  • Page 43: Connect The Cable To The Outdoor Unit

    0.1 MPa). Then evacuate the air approximately ten minutes. 4. Close the valve of both the Low and High sides of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes. Note: BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.
  • Page 44: Pipe Insulation

    4. Attach the control board cover to the original position with the screw. 10.3.6. PIPE INSULATION 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
  • Page 45 - If a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm. - If the unit is used in an area where temperature falls below 0°C for 2 or 3 days in succession, it is recommended not to use a drain elbow, for the drain water freezes and the fan will not rotate.
  • Page 46: Way Valve

    Is there any gas leakage at flare nut connection? Has the heat insulation been carried out at flare nut connection? Is the indoor/outdoor connecting cable being fixed to terminal board firmly? Is the indoor/outdoor connecting cable being clamped firmly? Is the drainage OK? (Refer to “Check the drainage”...
  • Page 47 3-way Valve (Liquid Side) 3-way Valve (Gas Side) Works Shaft Position Service Port Shaft Position Service Shipping Closed Closed Closed Closed (With valve cap) (With cap) (With valve cap) (With Evacuation Closed Open Closed Open (Installation and (Clockwise) (Connected (Clockwise) (Push manifold Re-installation)
  • Page 48 3-way Valve (Liquid Side) 3-way Valve (Gas Side) (Servicing) (Counter-clockwise) (Connected (Counter-clockwise) (Connected manifold gauge) manifold Gas releasing Open Open Open Open (Servicing) (Counter-clockwise) (Connected (Counter-clockwise) (Connected manifold gauge) manifold 11.1. Evacuation of Installation When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure.
  • Page 49 sides of a charging set and the service ports of a 3-way valves. - Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the centre hose of the charging set to a vacuum pump. 3.
  • Page 50 Procedure: Confirm that both the 3-way valves are set to the open position. - Remove the valve stem caps and confirm that the valve stems are in the open position. - Be sure to use a hexagonal wrench to operate the valve stems. 2.
  • Page 51 7. Immediately set gas side 3-way valve to the close position. - Do this quickly so that the gauge ends up indicating 1 to 3 kg/ G (0.1 MPa to 0.3 MPa). 8. Use refrigerant reclaiming equipment to collect refrigerant from indoor unit and pipes.
  • Page 52 - Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the centre hose of the charging set to a vacuum pump. 3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to -76 cmHg (- 0.1 MPa).
  • Page 53 the valves to “open” using a hexagonal wrench (4 mm). 9. Mount valve caps onto the 3-way valves. 11.4. Balance refrigerant of the 3-way valves (Lack of refrigerant in the refrigeration cycle) Procedure: 1. Confirm that both the 3-way valves are set to the opened position. 2.
  • Page 54 Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Turn on the vacuum pump to evacuate the unit. - Confirm that the gauge needle has moved toward -76 cmHg (- 0.1 MPa). - Apply the vacuum for approximately 1 hour (vacuum of 4 mmHg or less).
  • Page 55 Procedure: 1. Connect the charge hose to the charging cylinder. - Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. - Open the valve at the bottom of the cylinder and use a screwdriver to press the check valve on the charge set to purge the air (be careful of the liquid refrigerant).
  • Page 56: Servicing Information

    - Use torque wrench to tighten the service port caps to a torque of 18 N.m. - Be sure to check for gas leakage. 12. Servicing Information (A) Disassembly of the parts (Indoor Unit) - Inspection points for the Indoor Electronic Controller 1.
  • Page 57 Fig. 3 3. Remove the Discharge Grille. Remove the Discharge Grille and then pull the Discharge Grille in a down and forward direction. 4. Remove the Indoor Fan Motor. Loosen the Fan Mounting Screw at the junction with Cross Flow Fan.
  • Page 58 Fig. 5 Fig. 6 Fig. 7...
  • Page 59 - Cross Flow Fan Removal Procedure 1. Remove the Fan Mounting Screws and Bearing. (Refer to No. 4 of Indoor Fan Motor the removal procedure) 2. Loosen the 2 screws mounted at the left side of the evaporator. 3. Pull the left side of the evaporator forward slightly and remove the cross Flow Fan.
  • Page 60 Fig. 10 (C) Remote Control Transmission Setting - Remote Control Reset When the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work. / If this happens, remove the back cover of the remote control and you will find a resetting terminal, and by shorting it with a minus screwdriver, it will return to normal.
  • Page 61: Troubleshooting Guide

    - By adding a jumper wire to the remote control side and a carbon resistor (1/4 W, 10 k ) to the indoor printed circuit board, it is possible to select from 4 types of transmission codes including the condition at time of delivery condition (1). 13.
  • Page 62 13.1.1. Relationship between the condition of the air conditioner and pressure and electric current...
  • Page 63 Cooling Mode Heating Mode Condition of the conditoner Low Pressure High Electric Low Pressure High Electric Pressure current Pressure current during during operation operation Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient...
  • Page 64: Technical Data

    Nature of fault Symptom Electric current during operation becomes approximately 20% lower than the normal value. Insufficient compressing of a The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C). compressor The difference between high pressure and low pressure becomes almost zero. Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter.
  • Page 65 240V Outdoor Temp. (°C) Indoor wet Bulb temp. 17.0°C 5.10 4.63 2.01 4.78 4.47 2.17 4.47 4.16 2.32 4.06 3.59 2.50 19.0°C 5.20 2.19 19.5°C 5.67 4.06 2.04 5.30 3.80 2.19 4.94 3.74 2.34 4.52 3.59 2.52 22.0°C 6.29 3.80 2.06 5.88 3.33...
  • Page 67: Exploded View

    15. Exploded View...
  • Page 68: Replacement Parts List

    Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 16. Replacement Parts List <Model: CS-A182KR / CS-A242KR>...
  • Page 69 DESCRIPTION & NAME Q’TY CS-A182KR CS-A242KR REMARKS CHASSY COMPLETE CWD50C369 CHASSY BACK COVER CWD93956 FAN MOTOR CWA98273 CWA98273 CROSS FLOW FAN COMPLETE CWH02C058 SCREW - CROSS FLOW FAN CWH4580304 BEARING ASS’Y CWH64K007 EVAPORATOR CWB30C284 CWB30C285 FLARE NUT (1/4”) CWH6002140 FLARE NUT (1/2”) OR (5/8”) CWT25007 (1/2”) CWT25004 (5/8”)
  • Page 70 - All parts are supplied from MACC, Malaysia (Vendor Code: 086). - “O” marked parts are recommended to be kept in stock. 17. Exploded View Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 18.
  • Page 72 DESCRIPTION & NAME Q’TY CU-A182KR CU-A242KR REMARKS CHASSY ASS’Y CWD50K514B SOUND PROOF BOARD CWH15223 FAN MOTOR BRACKET CWD54145 SCREW - FAN MOTOR BRACKET CWH55101 PARTICULAR PLATE F/M (L) CWD90835 PARTICULAR PLATE F/M (R) CWD90836 FAN MOTOR CWA92294 CWA92295 SCREW - FAN MOTOR CWH55252 HOLD FOR F/MOTOR &...
  • Page 73: Electronic Parts List

    DESCRIPTION & NAME Q’TY CU-A182KR CU-A242KR REMARKS CABINET FRONT PLATE COMPLETE CWE06075B SOUND PROOF MATERIAL CWG30894 CABINET SIDE PLATE CWE04111B CABINET TOP PLATE CWE03101B CONTROL BOARD COVER CWH13331A HANDLE CWE16000E 2 - WAYS VALVE ---- CWB02018 V -COIL COMPLETE ---- CWA43C494 ELECTRONIC CONTROLLER CWA742407...
  • Page 74 DIODE A54MA723TA DIODE B0BA7R9000013 ZNR1, ZNR2 DIODE COMPLETE A54C353 V-COIL J0JYB0000009 L2 ~ L6 V-COIL J0JYB0000007 NOISE FILTER A49219 NOISE FILTER A49220 TRANSFORMER A401005 (A182KR ONLY) TRANSFORMER A40287 (A242KR ONLY) TRANSFORMER A40263 RY-HOT ELECTRO MAGNETIC RELAY A00161 RY-PWR ELECTRO MAGNETIC RELAY K6B1AGA00077 SLIDE SWITCH K0D112A00064...
  • Page 75: Electronic Circuit Diagram

    - All parts are supplied from MACC, Malaysia (Vendor Code: 086) <Model: CWA742407> SYMBOL DESCRIPTION & NAME PART NO. INTEGRATED CIRCUIT C0BACA000005 TRANSISTOR B1GACFGH0002 Q1, Q2 TRANSISTOR A55C1741ASTR D1, D2 DIODE B0EAKL000008 ZNR1 DIODE (ZNR) ERZVEAV511 ZENAR DIODE B0BA7R0A0014 ZNR1, ZNR2 DIODE CO.
  • Page 76 Fan Speed High Speed Low Speed Manual Cooling Auto Sleep Soft Dry Manual, Auto Sleep Manual (A182K) Heating Manual (A242K) Auto Sleep Voltage to Fan CS-A182K 44.0 42.0 36.3 31.2 25.3 21.0 Motor Drive Transistor CS-A242K 52.8 47.8 41.4 36.3 28.0 21.1 (DCV)
  • Page 77 TIMER TABLE Test mode Name Time (When test point Remarks Short-circulated) Sleep Mode Waiting 1 hr. 6 sec. Sleep Mode Operation 8 hrs. 48 sec. 1 hr. 1 min. Real Timer 10 min. 10 sec. 1 min. 1 sec. Time Delay Safety Control 2 min.
  • Page 78: Remote Control

    20.1. REMOTE CONTROL 20.2. PRINT PATTERN...
  • Page 80 [MACC] Printed in Malaysia /...
  • Page 81: Safety Precautions

    Safety Precautions Before operating, please read the following “Safety Precautions” carefully. To prevent personal injury, injury to others and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions will cause harm or damage, the seriousness of which is classified as follows : Warning Caution...
  • Page 82 Operation precautions Warning Do not damage or use an Do not operate or stop the Insert the power plug unspecified power cord. unit by inserting or pulling properly. out the power plug. It will cause electrical shock Heat generated by a loose power plug could cause or fire.
  • Page 83 Caution Do not remove the power Switch off the power When cleaning the unit, plug by pulling the cord. supply if the unit is not remove the plug. going to be used for a long Hold plug when This is to prevent injury due to disconnecting the plug from the period of time.
  • Page 84: Name Of Each Part

    Name of Each Part Indoor unit Panel Opener Test Run Button Front Panel Auto Operation Button Air Intake Vent Power Supply Air Outlet Vent Cord Vertical Airflow Direction Louver Signal Power Switch Receptor Horizontal Operation Indication Airflow Direction Louver Lamps (LED) (Manually adjusted) POWER : Red SLEEP : Orange...
  • Page 85 Accessories Remote Control Two R03 (AAA) dry-cell batteries or equivalent Remote control Air Purifying Filters (Catechin Air Purifying Filters and Deodorizing Filters) Signal Transmitter Operation Display Sleep Mode OFF/ON Button Operation Button Airflow Volume Selection Button Airflow Direction Manual Control Button Room Temperature Operation Mode Setting Button...
  • Page 86: Preparation Before Operation

    Preparation Before Operation Before operating the unit Connect the power supply cord to an independent power supply. Switch on the power switch Open the front panel. Remove air filter. and close the front panel. filter Hold the panel openers at both Hold the tab to raise up slightly sides and pull up the front and then pull down.
  • Page 87 How to insert batteries OPEN Gently press the place Fix the cover to the back of the remote marked [OPEN] and slide control (“PM 12:00” will flash in the operation the cover toward you. display.) er Be sure that the (+) and (–) directions correct.
  • Page 88: How To Operate

    How to Operate Auto Restart Control. If there is a power failure, operation will be automatically restarted after 3 minutes when the power is resumed with previous operation mode and airflow direction. (When the operation is not stopped by remote control.) If you do not intend to continue the operation when the power is resumed, switch off the power...
  • Page 89 Press to select operation mode. MODE The display changes in the order each time the button is pressed. Press to start the operation. OFF/ON I Operation indication lamp (RED) will light up. Press once more, to stop the operation. FAN SPEED Press to select airflow volume.
  • Page 90: Setting The Timer

    Setting the Timer If there is a power failure. To reset the Timer. (Example) If the OFF Timer has been set. OFF-TIMER Even if there is a power failure, the setting time is still stored in the memory because the remote control is a battery operated type.
  • Page 91 To set the current time. Set hours and minutes TIME ..to advance the time ..to reverse the time To set the Timer. OFF Timer Set hours and minutes OFF-TIMER TIME ..to increase 10 minutes each step..to decrease 10 minutes each step.
  • Page 92: Convenient Operation

    Convenient Operation Sleep Mode This is to gain a comfortable room temperature while sleeping. To set Sleep Mode. Press SLEEP (The sleep indication lamp on the main unit will light up.) To cancel Sleep Mode. Press once more SLEEP (The sleep indication lamp on the main unit will switch off.) Sleep Mode Operation.
  • Page 93 When the remote control cannot be used Test Run Button. (Use when installing and moving) Auto Operation Button. When the remote control cannot be used, press Auto operation button to run automatic operation. (Airflow direction setting will be automatic.) To set Auto Operation. Press Auto Operation Button.
  • Page 94: Operation Hints

    Operation Hints Adjust room temperature properly. Set the Clean the air filter regularly. Blockage in the air temperature 1°C higher (Cooling Operation) or filter reduces the airflow and lowers the cooling 2°C lower (Heating Operation) than actually or heating. Clean at least once every 2 weeks. desired.
  • Page 95 Make sure that the doors and windows are Keep blinds or curtains closed. Do not let shut. Otherwise, cooling and heating sunshine enter the room directly. About 5% of performance will be reduced and electricity electricity cost can be saved. cost is wasted.
  • Page 96: Better Care And Maintenance

    Better Care and Maintenance Regular care and maintenance will extend the life of the air conditioner and prevent wastage of electricity. Before performing any maintenance procedure, be sure to switch off the main power supply. Do not use water or volatile liquids. Caution Do not make air conditioner wet, as there is the danger that it could cause electric shocks.
  • Page 97 Replacement of air purifying filters Recommended about once every 3 months. Remove the air purifying Remove the air filters. Remove the filters from filters. the filter frame. ! Caution Be careful not to hurt your hands on Filters metal parts. Air filter Air purifying filter <Note>...
  • Page 98: Troubleshooting

    Troubleshooting Normal operation Is it okay? This is the answer. Air conditioner has been This is to protect the air conditioner. Wait until restarted, but does not Sight the air conditioner begins operating. operate for 3 minutes. Soft Dry Mode operation is a very gentle cooling operation consisting primarily of dehumidifying.
  • Page 99 Abnormal operation Has the circuit breaker been tripped? Has the power plug been removed from the wall outlet? The air conditioner Is the power switch at “t” (OFF)? does not operate. Is the Timer being used correctly? Has the REMOTE CONTROLLER B ↔ A switch been set to “B”? Has the temperature been set incorrectly? Are the filters dirty?
  • Page 100 Warning 1) If the supply cord is damaged or need to be replaced, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard. 2) Remove power plug or disconnect from the mains before servicing this appliance. 3) Do not repair by yourself.
  • Page 101 • CS-A182KR / CU-A182KR • CS-A242KR / CU-A242KR SCHEMATIC DIAGRAM 1/3 ELECTRONIC CIRCUIT REMOCON NO. CS-A181K CS-A241K 20.0k 11.3k – A52D011CW 100µ A52BR9020 33.2k 32.4k 43036 MICRO COMPUTER SIDE A : OFF AUTO RESTART SIDE B : ON AUTO MODE TEMP. SETTING 26.1k...
  • Page 102 CWA43036 1.74k 1000P COMPRESSOR 13.0k – 100V 100V 100µ 0.18µ – – 470µ 470µ 1/2W CWA43036 ECQV M653 8200µ MODEL CS-A182KR CS-A242KR 15.40k 15.40k 12.00k 12.00k 24.9k A54RB44-08V 0.47 – 7.32k 10.20k 4.7µ 5.36k 8.25k 250VAC 2SD2220 0.01µ 3.83k 6.49k...
  • Page 103 SCHEMATIC DIAGRAM 3/3 ELECTRONIC CIRCUIT COMP (VIOLET) (XH-4) YELLOW CN-TH X1 4MHz HOT 1 A52C78414Y (TMS73C45) AIR TEMP.SENSOR (15K.3950) MICRO COMPUTER RY-DEICE 1740S Fig4 DEICE 150k RESET SIGNAL GRAY OSC OUT PIPE TEMP. SENSOR GENERATOR (4.96K. 3800) 4.0MHz OSC OSC IN Fig.5 30Px2 A59014...
  • Page 104 Remote Control OFF / ON I TEMP. Operation OFF / ON Room Temperature Setting • Temperature Setting (16˚C to 30˚C) • Automatic Operation MODE Operation Mode Selection 2˚C lower than standard Standard • Automatic Operation Mode AUTO • Heating Operation Mode HEAT 2˚C higher than standard •...
  • Page 105 Indoor Unit POWER I Power Switch OFF / ON Auto Restart Control • Operation is restarted after power failure AUTO at previous setting mode. OFF / ON Auto Operation Switch Anti-Freezing Control • Used when the remote control cannot be used.
  • Page 106 Outdoor Unit 4-Way Valve Control 2-Way Valve Control • 2-way valve is ON for 1 minutes after • When the unit is switched to “OFF” during compressor start. Other than this, 2-way Heating operation, 4-way valve stays at Heating Position for 5 minutes. valve is OFF.

This manual is also suitable for:

Cu-a182krCs-a242krCu-a242kr

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