Table of Contents
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TABLE OF CONTENTS
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
3 Features ------------------------------------------------------------- 8
4 Location of Controls and Components ------------------- 9
4.1. Indoor Unit--------------------------------------------------- 9
4.2. Outdoor Unit ------------------------------------------------ 9
4.3. Remote Control -------------------------------------------- 9
5 Dimensions--------------------------------------------------------10
5.1. Indoor Unit & Remote Control -------------------------10
5.2. Outdoor Unit ----------------------------------------------- 11
6 Refrigeration Cycle Diagram --------------------------------12
7 Block Diagram----------------------------------------------------13
8 Wiring Connection Diagram ---------------------------------14
8.1. Indoor Unit--------------------------------------------------14
8.2. Outdoor Unit -----------------------------------------------15
9 Electronic Circuit Diagram -----------------------------------17
Indoor Unit
CS-E24LKES CU-E24LKE
CS-E28LKES CU-E28LKE
PAGE
9.1. Indoor Unit ------------------------------------------------- 17
9.2. Outdoor Unit----------------------------------------------- 18
10 Printed Circuit Board ------------------------------------------ 20
10.1. Indoor Unit ------------------------------------------------- 20
10.2. Outdoor Unit----------------------------------------------- 23
11 Installation Instruction ---------------------------------------- 25
11.1. Select the Best Location ------------------------------- 25
11.2. Indoor Unit ------------------------------------------------- 26
11.3. Outdoor Unit----------------------------------------------- 29
12 Operation and Control ---------------------------------------- 32
12.1. Basic Function -------------------------------------------- 32
12.2. Airflow Direction ------------------------------------------ 34
of Soft Dry Mode) ---------------------------------------- 35
12.4. Powerful Mode Operation------------------------------ 36
12.5. Timer Control---------------------------------------------- 37
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1001025C2
Air Conditioner
Outdoor Unit
PAGE
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Summary of Contents for Panasonic CS-E24LKES
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Page 1: Table Of Contents
Soft Dry Mode) ---------------------------------------- 35 8.2. Outdoor Unit -----------------------------------------------15 12.4. Powerful Mode Operation------------------------------ 36 9 Electronic Circuit Diagram -----------------------------------17 12.5. Timer Control---------------------------------------------- 37 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law. - Page 2 12.6. Auto Restart Control------------------------------------- 37 12.7. Indication Panel------------------------------------------- 37 12.8. Patrol Operation ------------------------------------------ 38 12.9. e-ion Operation ------------------------------------------- 40 12.10. Mild Dry Cooling Operation ---------------------------- 42 12.11. ECO Patrol Operation----------------------------------- 43 13 Protection Control ---------------------------------------------- 47 13.1. Protection Control For All Operations--------------- 47 13.2.
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Page 3: Safety Precautions
1 Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. •... - Page 4 18. For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials.
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Page 5: Specifications
2 Specifications MODEL INDOOR CS-E24LKES CS-E28LKES OUTDOOR CU-E24LKE CU-E28LKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.90 6.80 8.10 0.90 7.65 8.60 Capacity BTU/h 3070 23200 27600 3070... - Page 6 MODEL INDOOR CS-E24LKES CS-E28LKES OUTDOOR CU-E24LKE CU-E28LKE Type Propeller Fan Propeller Fan Material Motor Type Induction (6-poles) Induction (6-poles) Input Power Output Power Cool Speed Heat Moisture Removal L/h (Pt/h) 3.9 (8.2) 4.5 (9.5) Cool 11.90 (420) 11.90 (420) /min (ft...
- Page 7 MODEL INDOOR CS-E24LKES CS-E28LKES OUTDOOR CU-E24LKE CU-E28LKE Thermostat Electronic Control Electronic Control Protection Device Electronic Control Electronic Control Dry Bulb Wet Bulb Dry Bulb Wet Bulb Maximum Cooling Minimum Indoor Operation Range Maximum — — Heating Minimum — — Maximum...
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Page 8: Features
3 Features • Inverter Technology - Wider output power range - Energy saving - Quick Cooling - More precise temperature control • E-ion Air Purifying System with Patrol Sensor - Active e-ions are released to catch dust particles and bring them back the large positively charged filter •... -
Page 9: Location Of Controls And Components
4 Location of Controls and Components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3. Remote Control... -
Page 10: Dimensions
5 Dimensions 5.1. Indoor Unit & Remote Control... -
Page 11: Outdoor Unit
5.2. Outdoor Unit... -
Page 12: Refrigeration Cycle Diagram
6 Refrigeration Cycle Diagram... -
Page 13: Block Diagram
7 Block Diagram... -
Page 14: Wiring Connection Diagram
8 Wiring Connection Diagram 8.1. Indoor Unit... -
Page 15: Outdoor Unit
8.2. Outdoor Unit 8.2.1. CU-E24LKE... - Page 16 8.2.2. CU-E28LKE...
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Page 17: Electronic Circuit Diagram
9 Electronic Circuit Diagram 9.1. Indoor Unit... -
Page 18: Outdoor Unit
9.2. Outdoor Unit 9.2.1. CU-E24LKE... - Page 19 9.2.2. CU-E28LKE...
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Page 20: Printed Circuit Board
10 Printed Circuit Board 10.1. Indoor Unit 10.1.1. Main Printed Circuit Board... - Page 21 10.1.2. Power Printed Circuit Board 10.1.3. Indicator Printed Circuit Board 10.1.4. Receiver Printed Circuit Board...
- Page 22 10.1.5. High Voltage Power Supply Printed Circuit Board 10.1.6. Comparator Printed Circuit Board 10.1.7. Eco Patrol Printed Circuit Board...
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Page 23: Outdoor Unit
10.2. Outdoor Unit 10.2.1. Main Printed Circuit Board... - Page 24 10.2.2. Power Printed Circuit Board...
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Page 25: Installation Instruction
11 Installation Instruction 11.1. Select the Best Location 11.1.3. Indoor/Outdoor Unit Installation Diagram 11.1.1. Indoor Unit • Do not install the unit in excessive oil fume area such as kitchen, workshop and etc. • There should not be any heat source or steam near the unit. •... -
Page 26: Indoor Unit
11.2. Indoor Unit 11.2.1. How to Fix Installation Plate 11.2.2. To Drill a Hole in the Wall and Install The mounting wall is strong and solid enough to prevent it from a Sleeve of Piping the vibration. 1. Insert the piping sleeve to the hole. 2. - Page 27 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping (This can be used for left rear piping and bottom piping also.)
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Page 28: Connect The Cable To The Indoor Unit
11.2.4. 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 4 x 1.5 mm flexible cord, type designation 245 IEC 57 or heavier cord. -
Page 29: Outdoor Unit
11.3. Outdoor Unit 11.3.1. Install the Outdoor Unit • After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. -
Page 30: Evacuation Of The Equipment
11.3.3. 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. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. •... -
Page 31: Pipe Insulation
5. Secure the power supply cord and connecting cable onto the control board with the holder. 6. Attach the control board cover back to the original position with screw. 7. For wire stripping and connection requirement, refer to instruction of indoor unit. This equipment must be properly earthed. -
Page 32: Operation And Control
12 Operation and Control 12.1. Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. -
Page 33: Automatic Operation
12.1.5. Automatic Operation • This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature. • During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature. -
Page 34: Airflow Direction
[Heating] • According to indoor pipe temperature, automatic heating fan speed is determined as follows. B. Feedback control • Immediately after the fan motor started, feedback control is performed once every second. • During fan motor on, if fan motor feedback 2550 rpm or <... -
Page 35: Quiet Operation (Cooling Mode/Cooling Area Of Soft Dry Mode)
1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below. -
Page 36: Powerful Mode Operation
b. Quiet operation stop condition 1. When one of the following conditions is satisfied, quiet operation stops: a. Powerful button is pressed. b. Stop by OFF/ON switch. c. Timer “off” activates. d. Quiet button is pressed again. e. Eco Patrol button is pressed. f. -
Page 37: Timer Control
12.5. Timer Control • There are 2 sets of ON and OFF timer available to turn the unit ON or OFF at different preset time. • If more than one timer had been set, the upcoming timer will be displayed and will activate in sequence. 12.5.1. -
Page 38: Patrol Operation
12.8. Patrol Operation • To monitor air dirtiness level by using Patrol sensor and to maintain air freshness by activates e-ion operation • Patrol operation starts condition - When the unit operation is started with “OFF/ON” button. - When the unit stops, “Patrol” operation is selected, Patrol individual operation will start. - During cooling only operation, “Patrol”... - Page 39 • Patrol Sensor Control - First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The Air Dirtiness level is set to Clean. - After that, Patrol sensor starts to record the resistance value at fixed interval. Higher resistance value indicates cleaner air. - The air dirtiness level is monitored by comparing the current resistance value with maximum resistance value from time to time to get the Air Dirtiness Value.
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Page 40: E-Ion Operation
• Indicator - When patrol is selected, patrol sensor indicator ON. Description BLUE E-ION When patrol is selected function is not selected During gas sensor error detection control During stop 2 minutes gas sensor initial stabilization time (Level 0) During operation a. - Page 41 Auto Fan Speed for e-ion operation switches between HLo and CLo at pattern below: b. Airflow direction control • During any operation mode combines with e-ion operation, airflow direction follows respective operation mode. • During e-ion individual operation, only Auto Air Swing is allowed. Even if Air Swing button is pressed, no signal is sent to air conditioner, and no change on LCD display.
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Page 42: Mild Dry Cooling Operation
f. Power failure • During e-ion individual operation, if power failure occurs, after power resumes, e-ion individual operation resumes immediately. • During combination operation, if power failure occurs, after power resumes, combination operation resume immediately. g. Error Detection Control When e-ion indicator blink, it indicates error listed below: i. -
Page 43: Eco Patrol Operation
12.11. ECO Patrol Operation • A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine the presence or absence of human and its activity level. Human detection area is shown in figure below: •... - Page 44 • ECO Patrol Demo Mode - Press “Set” button continuously for 15 seconds by using pointer during Air Conditioner is OFF condition to enter internal setting mode. - Press “Timer Decrement” button to select “EC demo”. - Press “Timer Set” button to toggle ECO Patrol Demo mode. - Short “beep”: Turn ON ECO Patrol Demo mode.
- Page 45 • Other Information - ECO Patrol, Powerful, Quiet and Mild Dry Cooling cannot be operated at the same time. - ECO Patrol sensor initialized time is 70 seconds from power supplied to ECO Patrol sensor, or 70 seconds from the operation start.
- Page 46 • Purpose is to improve sensor serviceability when sensor is malfunction. 1. Control starting condition When all of the conditions are formed • Not in ECO Patrol Demo mode. • ECO Patrol mode ON. • When ECO Patrol sensor check mode signal is received; the procedure of selection is as shown: - Press “Set”...
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Page 47: Protection Control
13 Protection Control 13.1. Protection Control For All Operations 13.1.1. Time Delay Safety Control 1. The compressor will not start for three minutes after stop of operation. 2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition. 13.1.2. - Page 48 13.1.5. Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below figure. If compressor discharge temperature exceeds 112°C, compressor will be stop, occurs 4 times per 20 minutes, timer LED will be blinking (“F97”...
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Page 49: Protection Control For Cooling & Soft Dry Operation
13.2. Protection Control For Cooling & Soft Dry Operation 13.2.1. Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. This control will begin 1 minute after the compressor starts. Compressor frequency will adjust base on Outdoor Air Temperature. -
Page 50: Protection Control For Heating Operation
2. Control contents • Operation stops. • Timer LED blinks and “H99” indicated. 13.2.7. Odor Cut Control • To reduce the odor released from the unit. - Start Condition - AUTO FAN Speed is selected during COOL or DRY operation. - During freeze prevention control and timer preliminary operation, this control is not applicable. -
Page 51: Servicing Mode
14 Servicing Mode 14.1. Auto OFF/ON Button 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. 2. -
Page 52: Remote Control Button
4. REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”... -
Page 53: Troubleshooting Guide
15 Troubleshooting Guide 15.1. Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right. -
Page 54: Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current
15.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current during operation during operation Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer... -
Page 55: Breakdown Self Diagnosis Function
15.3. Breakdown Self Diagnosis Function 15.3.1. Self Diagnosis Function (Three Digits Alphanumeric Code) • Once abnormality has occurred during operation, the unit 7. The breakdown diagnosis mode will be canceled will stop its operation, and Timer LEDs blink. unless pressing the CHECK button continuously for 5 •... -
Page 56: Error Codes Table
15.4. Error Codes Table Diagnosis Abnormality Protection Abnormality or Protection Control Problem Check Location Display Judgement Operation No memory of failure — Normal operation — — Indoor / outdoor abnormal After operation for Indoor fan only • Indoor / outdoor •... - Page 57 Outdoor liquid pipe temperature sensor Continuous for 5s Cooling protection • Outdoor liquid pipe • Outdoor liquid pipe abnormality operation only temperature sensor temperature sensor open or short circuit lead wire and connector Indoor / outdoor mismatch — — • Brand code not •...
- Page 58 Power transistor module overheating 4 times happen — • Power transistor • PCB faulty, outdoor protection within 30 minutes module overheat air circuit (fan motor) Compressor overheating protection 3 times happen — • Compressor • Insufficient within 30 minutes overheat refrigerant Total running current protection 3 times happen...
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Page 59: Self-Diagnosis Method
15.5. Self-diagnosis Method 15.5.1. H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions • During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused • Faulty indoor unit PCB. •... - Page 60 15.5.2. H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions • During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused • Wrong models interconnected. • Wrong indoor unit or outdoor unit PCBs mounted. •...
- Page 61 15.5.3. H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 62 15.5.4. H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. • Faulty sensor. •...
- Page 63 15.5.5. H16 (Outdoor Current Transformer Open Circuit) Malfunction Decision Conditions A current transformer (CT) is detected by checking the compressor running frequency ( rated frequency) and CT detected input current (less than 0.65A) for continuously 20 seconds. Malfunction Caused • CT defective •...
- Page 64 15.5.6. H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions • The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or < 50rpm). Malfunction Caused •...
- Page 65 15.5.7. H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 66 15.5.8. H25 (e-ion Air Purifying System Abnormal) Malfunction Decision Conditions • During standby of cooling and heating operation, e-ion breakdown occurs and air conditioner stops operation. Malfunction Caused • Faulty indoor main PCB. • Faulty indoor e-ion power module. Troubleshooting...
- Page 67 15.5.9. H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 68 15.5.10. H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 69 15.5.11. H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 70 15.5.12. H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 71 15.5.13. H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused • Wrong models interconnected. • Wrong indoor unit and outdoor unit PCBs used. • Indoor unit or outdoor unit PCB defective. Troubleshooting...
- Page 72 15.5.14. H34 (Outdoor Heat Sink Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 73 15.5.15. H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 74 15.5.16. H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
- Page 75 15.5.17. H58 (Patrol Sensor Abnormality) Malfunction Decision Conditions • If Patrol sensor feedback is 0V or 5V continuous for 6 hours. • Error will display only when the Patrol operation is ON. Malfunction Caused • Faulty connector connection. • Faulty Patrol sensor. Troubleshooting...
- Page 76 15.5.18. H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions • The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused • Operation stops due to short circuit inside the fan motor winding. •...
- Page 77 15.5.19. H98 (Indoor High Pressure Protection) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions During heating operation, the temperature detected by the indoor pipe temperature sensor is above 60 C. Malfunction Caused •...
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Page 78: H99 (Indoor Freeze Prevention Protection: Cooling Or Soft Dry)
15.5.20. H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error code will not display (no TIMER LED blinking) but store in EEPROM Malfunction Decision Conditions Freeze prevention control takes place (when indoor pipe temperature is lower than 2 C) Malfunction Caused •... - Page 79 15.5.21. F11 (4-way valve Abnormality) Malfunction Decision Conditions • When heating operation, when indoor pipe temperature is below 10°C. • When cooling operation, when indoor pipe temperature is above 45°C. Malfunction Caused • Connector in poor contact. • Faulty sensor. •...
- Page 80 15.5.22. F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions • When the different between indoor intake air temperature and indoor pipe temperature is above 10°C or indoor pipe temperature is below -1.0°C. Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
- Page 81 15.5.23. F90 (Power Factor Correction Protection) Malfunction Decision Conditions • During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level. Malfunction Caused • DC voltage peak due to power supply surge. •...
- Page 82 15.5.24. F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions • During cooling, compressor frequency = Fcmax. • During heating, compressor frequency > Fhrated. • During cooling and heating operation, running current: 0.65A < I < 1.65A. • During cooling, indoor intake - indoor pipe < 4 C •...
- Page 83 15.5.25. F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused • Compressor terminal disconnect • Faulty Outdoor PCB • Faulty compressor Troubleshooting...
- Page 84 15.5.26. F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooling, when outdoor unit heat exchanger high temperature data (61 C) is detected by the outdoor pipe temperature sensor. Malfunction Caused • Air short circuit at outdoor unit •...
- Page 85 15.5.27. F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooling and heating, when IPM temperature data (100°C) is detected by the IPM temperature sensor. Multi Models Only • Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. •...
- Page 86 15.5.28. F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature data (112 C) is detected by the compressor tank temperature sensor. Malfunction Caused • Faulty compressor tank temperature sensor • 2/3 way valve closed •...
- Page 87 15.5.29. F98 (Input Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transforme r (CT) with the compressor running. Malfunction Caused •...
- Page 88 15.5.30. F99 (Output Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an output over-current (DC peak current value at IPM Prevention Control) is detected by checking the current that flows in the inverter DC peak sensing circuitry. Malfunction Caused •...
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Page 89: Disassembly And Assembly Instructions
16 Disassembly and Assembly Instructions WARNING High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1. - Page 90 16.1.3. To remove power electronic controller...
- Page 91 16.1.4. To remove discharge grille 16.1.5. To remove control board...
- Page 92 16.1.6. To remove cross flow fan and indoor fan motor...
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Page 94: Outdoor Electronic Controller Removal Procedure
16.2. Outdoor Electronic Controller Removal Procedure 1. Remove the 8 screws of the Top Panel. 4. Remove the Control Board. Fig. 4 5. Remove the 6 screws of the Electronic Controller. Fig. 1 2. Remove the 8 screws of the Front Panel. Fig. -
Page 95: Technical Data
17 Technical Data 17.1. Operation Characteristics 17.1.1. CS-E24LKES CU-E24LKE Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 27/19°C Remote control setting: HI FAN, COOL 16°C Compressor frequency: F Voltage: 230 V... - Page 96 Cooling Characteristic at Different Piping Length Condition Indoor room temperature: 27/19°C, 35/-°C Remote control setting: HI FAN, COOL 16°C Compressor frequency: F Voltage: 230 V...
- Page 97 Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 20/-°C Remote control setting: HI FAN, HEAT 30°C Compressor frequency: F Voltage: 230 V...
- Page 98 Heating Characteristic at Different Piping Length Condition Indoor room temperature: 20/-°C, 7/6°C Remote control setting: HI FAN, HEAT 30°C Compressor frequency: F Voltage: 230 V...
- Page 99 17.1.2. CS-E28LKES CU-E28LKE Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 27/19°C Remote control setting: HI FAN, COOL 16°C Compressor frequency: F Voltage: 230 V...
- Page 100 Cooling Characteristic at Different Piping Length Condition Indoor room temperature: 27/19°C, 35/-°C Remote control setting: HI FAN, COOL 16°C Compressor frequency: F Voltage: 230 V...
- Page 101 Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 20/-°C Remote control setting: HI FAN, HEAT 30°C Compressor frequency: F Voltage: 230 V...
- Page 102 Heating Characteristic at Different Piping Length Condition Indoor room temperature: 20/-°C, 7/6°C Remote control setting: HI FAN, HEAT 30°C Compressor frequency: F Voltage: 230 V...
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Page 103: Sensible Capacity Chart
17.2. Sensible Capacity Chart CS-E24LKES CU-E24LKE Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 6.75 5.11 1.94 6.30 4.90 2.09 5.86 4.71 2.23 5.33 4.48 2.41 19.0°C 6.80 2.12 19.5°C 7.41 5.35 1.98 6.92 5.14 2.13 6.44 4.95 2.28 5.85 4.71... -
Page 104: Exploded View And Replacement Parts List
18 Exploded View and Replacement Parts List 18.1. Indoor Unit Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. - Page 105 <Model: CS-E24LKES CS-E28LKES> REF NO. PART NAME & DESCRIPTION QTY. CS-E24LKES CS-E28LKES REMARKS ← CHASSY COMPLETE CWD50C1654 ← FAN MOTOR L6CBYYYL0039 ← CROSS FLOW FAN COMPLETE CWH02C1077 ← BEARING ASS’Y CWH64K007 ← SCREW - CROSS FLOW FAN CWH551146 ← GENERATOR COMPLETE CWH94C0028 ←...
- Page 106 REF NO. PART NAME & DESCRIPTION QTY. CS-E24LKES CS-E28LKES REMARKS ← INSTALLATION INSTRUCTION CWF614210 ← ELECTRONIC CONTROLLER - COMPARATOR CWA745790 ← ELECTRONIC CONTROLLER - ECO PATROL CWA745791 ← COVER FOR PCB ECO (UPPER) CWD933192 ← COVER FOR PCB ECO (BOTTOM) CWD933193 ←...
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Page 107: Outdoor Unit
18.2. Outdoor Unit 18.2.1. CU-E24LKE... - Page 108 18.2.2. CU-E28LKE 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.
- Page 109 <Model: CU-E24LKE CU-E28LKE> REF. NO. DESCRIPTION & NAME QTY. CU-E24LKE CU-E28LKE REMARKS Y ’ ← ← ← ← ← ← ← ← ← Y ’ ← ← ← & — Y ’ — ← — ← ← ← ← ← ←...