ORDER NO. RAC0602010C2

Multi Air Conditioner

CS-ME7EB1E CS-ME10EB1E CS-ME12EB1E CS-ME14EB1E
Please file and use this manual together with the service manual for Model No. CU-3E23CBPG, CU4E27CBPG, Order No. RAC0209005C2 and CU-3E18EBE, Order No. RAC0503011C2.

CONTENTS

1 Safety Precautions 2 Features 3 Functions 3.1. REMOTE CONTROL 3.2. INDOOR UNIT 4 Product Specifications 5 Dimensions 5.1. Cassette Type 5.2. Grille 6 Refrigeration Cycle Diagram 7 Block Diagram 8 Wiring Diagram 9 Electronic Circuit Diagram 10 Operation Details (Functions & Protection) 2006 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 10.1. Simultaneous Operation Control 10.2. Airflow Direction Control 10.3. Indoor Fan Control 10.4. Drain Pump Control 10.5. Auto Restart Control 10.6. Other Indoor Unit Operation Functions 11 Installation Instructions 12 Disassembly of Parts 12.1. Detaching the fan motor and cross flow fan 12.2. Detaching the drain pump 12.3. Detaching the control board 12.4. Detaching the louver motor 13 Technical Data
CS-ME7EB1E / CS-ME10EB1E / CS-ME12EB1E / CS-ME14EB1E
13.1. OPERATION CHARACTERISTICS 14 Exploded View & Replacement Parts List
14.1. Exploded View 14.2. Replacement Parts List
Operating instructions of this product can be referred at following Web site. http://phaam.panasonic.com.my

1 Safety Precautions

2 Features
Product A single OUTDOOR unit enables air conditioning of up to four separate rooms
Remarks: 1. At least two indoor units must be connected. 2. The total nominal cooling capacity of indoor units that will be connected to outdoor unit must be within connectable capacity range of outdoor unit. (Shown in the above table) Example: The below indoor units combination is not possible to connect CU-3E23CBPG. (Total nominal capacity of indoor unit is between 5.0kW and 10.0kW) 1) Two CS-ME7EB1E only. (Total nominal cooling capacity is 4.4kW) 2) Three CS-ME14EB1E only. (Total nominal cooling capacity is 12.0kW) Inverter controlled for High energy efficiency and optimal comfort New refrigerant R410A is used for protecting ozone layer Lead - free P.C. Board Serviceability Self diagnosis Test Run at both Cooling and Heating rated frequency Built-in drain pump A drain pump is built in. The pipe can rise to 200 mm above the drain outlet.

3 Functions

3.1. REMOTE CONTROL

INDOOR UNIT

4 Product Specifications
Model Item Power Source Air Volume Noise Level Cooling Heating Cooling (Power) Heating (Power) Connection Liquid Gas m3/min. m3/min. dB(A) (dB) dB(A) (dB) L/h mm mm mm mm mm kg CS-ME10EB1E CS-ME12EB1E CS-ME14EB1E Cassette Type Outdoor power (single 230V 50Hz) 9.1 9.6 9.5 10.1 10.9 9.8 Hi:40(53) Hi:41(54) Hi:42(56) Lo:32(45) Lo:32(45) Lo:32(45) Hi:42(55) Hi:42(56) Hi:44(57) Lo:32(45) Lo:32(45) Lo:34(47) 1.3 1.6 1.8 2.3 6.35 (1/4") Flare to the main unit 9.52 (3/8") Flare to the main unit CZ-3F 4 x 1.5 mm2 flexible cord, type designation 245 IEC 57 (H05RN-F) VP20 Height 185 x Width 770 x Depth 360 9.8 10.5 Cross-flow fan DC brushless motor (ARW50A8P30AC) 4P 25W 40V A98258 Plate fin forced-draft Wireless remote control Timer with ON and OFF times programmable Electronic thermostat PP honeycomb CS-ME7EB1E
Moisture Removal Refrigeration piping
Type of pipe Type of Indoor/Outdoor connecting cable Drain opening Dimensions Net Weight Fan Type Motor Type Output Heat exchanger Adjustments Switches Timer Temperature Air filter
* Specifications are subject to change without notice for further improvement.

5 Dimensions

5.1. Cassette Type

Grille

6 Refrigeration Cycle Diagram

7 Block Diagram

CS-ME7EB1E/ME10EB1E/ME12EB1E/ME14EB1E

8 Wiring Diagram

9 Electronic Circuit Diagram
10 Operation Details (Functions & Protection)
10.1. Simultaneous Operation Control
1. Operation modes which can be selected using the remote control unit: Automatic, Cooling, Soft Dry, Heating, Fan operation mode. 2. Types of operations modes which can be performed simultaneously Cooling operation and cooling, Dry or fan operation Heating operation and heating operation 3. Types of operation modes which cannot be performed simultaneously While a cooling operation is in progress, a heating operation cannot be performed by an indoor unit in another room. In the room where the operation button for cooling was pressed first, the operation is continued. In the room where the operation button for heating was pressed afterward, the operation lamp of the indoor unit blinks, where the attempt is made to establish the heating operation. Its fan is stopped, and the air does not discharged. While a heating operation is in progress, a cooling operation cannot be performed by an indoor unit in another room. In the room where the operation button for heating was pressed first, operation is continued. In the room where the operation button for cooling was pressed afterward, the operation lamp of the indoor unit blinks, where the attempt is made to establish the cooling operation. Its fan is stopped, and the air does not discharged. 4. Operation mode priority control The operation mode designated first by the indoor unit has priority. If the priority indoor unit stops operation or initiates the fan operation, the priority is transferred to other indoor units. Waiting denotes the standby status in which the operation lamp LED blinks (ON for 2.5 sec. and OFF for 0.5 sec.), and the fan is stopped.

* In the fan mode, priority is transferred to a non-priority unit.
C: Cooling operation mode D: Soft Dry operation mode H: Heating operation mode F: Fan operation mode
10.2. Airflow Direction Control
The following shows how louver operation changes depending on the direction set with the AIR SWING button and other operating conditions. Cooling and Dry

Heating

The louver stops at the CLOSE position when the power switch or breaker is ON. The louver stops at their current position when the power switch or breaker is OFF. Move the horizontal airflow direction control louver manually. 19

10.3. Indoor Fan Control

The following shows how fan speed changes depending on the setting made with the FAN SPEED button and other operating conditions. Actual fan speed may differ from that you set with remote control.

10.4. Drain Pump Control

Basic operation The drain pump starts 50 seconds after the indoor unit starts or the thermostat comes on (i.e., 10 seconds after the fan motor starts). The drain pump stops 30 seconds after the indoor unit stops or the thermostat turns off. The drain pump repeats a cycle of on for 30 seconds then off for between 50 and 90 seconds as long as the unit is operating. Operation while the unit is off is determined by the difference between the temperature setting and the room temperature.
Float switch operation When the float switch turns on for 10 seconds continuously, the thermostat of the indoor unit turns off and the drain pump operates continuously. When the float switch stays on for 150 seconds continuously, the drain pump and indoor unit stop and the timer lamp flashes indicating an H21 error.
10.5. Auto Restart Control
if there is a power failure, operation will automatically be restarted when the power is resumed. It will start with the previous operation mode and airflow direction. (Time Delay Safety Control is valid) 1. Control start conditions <1> The 24-hour timer must not be set. <2> The sleep timer must not be set. Auto restart control is not available when timer or sleep mode is set. 2. Description of control <1> In the case of manual operation, the operation mode, temperature setting, fan speed and airflow direction before the power is turned off are restored. <2> In the case of automatic operation, after the power is restored operation starts with the determination of the mode. <3> While the air conditioner odour clear timer has been set, the setting is cancelled, and operation is transferred to the mode before the power is turned off. <4> While the air conditioner odour clear operation (with timer / without timer setting) are being performed, both of these operations are completed, and operation is transferred to the operation mode prior to these operations. Example: When the power is turned off during an outdoor unit cooling operation

10.6. Other Indoor Unit Operation Functions

10.6.1. Auto button

Proceed with operation when the air conditioner is stopped. (When the auto button is pressed during operation, the air conditioner is stopped.)
1. Emergency operation Press the auto button and release it within 5 seconds to perform emergency operation. Under normal condition (failure is not occurred) automatic operation is performed. In the event of a failure that still enables operation to be performed, emergency operation is performed. 2. Forced cooling operation Keep pressing the auto button until one beep sounds to perform the automatic cooling operation. The air conditioner does not operate for 2 minutes if the room temperature is low (intake temperature below 16 C) so just wait. The forced operation is performed after the 2 minutes have elapsed. 3. Forced heating operation First press the auto button until one beep sounds, and then set it to OFF.Now press the auto button until two beeps sound to perform the automatic heating operation. 4. Select Remote Control Transmission Code There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit will only operate when received signal with same transmission code from remote control. This could prevent signal interference when there are 2 more indoor unit installed nearby together. To change remote control transmission code, short or open jumpers at the remote control printed circuit board.

10.6.2.

Drain Test
When installing the unit and you want the drain pump to operate independently, press the DRAIN TEST switch to operate it for about 5 minutes.

10.6.3.

Self Diagnosis display
10.6.3.1. BreakDown Self Diagnosis Function (Three Digits Alphanumeric Code)
Once abnormality has been detected during operation, the unit will immediately stop its operation. (Timer LED blinks.) Although timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will light up again. In operation after breakdown repair, error code is not displayed. The last error code (abnormality) will be saved in IC memory. Timer LED Blinking in Abnormal Operation: 1. Automatically stops the operation. 2. Timer LED on display of the indoor unit blinks. 3. The LED will be off if the unit is turned off or the Error RESET button on the remote controller is pressed. To display memorized error (Protective operation) status: 1. Turn the unit on. 2. Press the CHECK button on the remote controller for continuously 5 seconds or more with a pointed object to appear -- on the display. or button on the remote 3. Press the TIMER controller to appear H00 on the display. Signal is transmitted to the main unit. button (When the button is 4. Press the TIMER pressed, the display goes back.) repeatedly and slowly until Beeps sound (about 5 seconds intermittently) is heard from main unit. 5. Then, displayed error code matches to the error code saved in unit memory. The power LED on the main unit also lights up.

Note: When the CHECK button is pressed continuously for 5 seconds again, or when no operation continues for 30 seconds, or when the RESET button on remote controller is pressed with a pointed object, the display is cancelled.
To clear memorized error (Protective operation) status after repair: 1. Press the AUTO button in main unit continuously for 5seconds or more and release it. (Test run / Pump downoperation: Beep sound) 2. Press the CHECK button on remote controller for about 1 second with a pointed object to transmit signal to main unit. A beep sound is heard from main unit and the data is cleared. Temporary Operation (Depending on breakdownstatus) 1. Press the ON/OFF button after selecting Cooling or Heating operation. (Receiving Beep sound is heard andthe TIMER LED blinks.) 2. The unit can temporarily be used until repaired.

10.6.3.2. Error Code

Symbol Diagnosis H11 Indoor / Outdoor abnormal communication H12 Indoor unit capacity unmatched Intake air temp. sensor Diagnosis method This error occurs when indoor/outdoor unit communication fails to be established after 30 seconds or more. <Diagnosis checkpoint> 1. Measure the voltage of the indoor/outdoor unit communication cables, and check whether the voltage is being supplied properly to the outdoor unit or whether it is being returned from the outdoor unit to the indoor units. This error occurs when wrong in the total connection capacity and wrong connection in each capacity. The error is determined within 2 minutes after the power is turned on. <Diagnosis checkpoint> 1. Check the total capacity of the units connected and check that the models are compatible for connection. This error occurs when the intake air temperature has exceeded above 46C continuously for 2 minutes or dropped below -54C continuously for 5 seconds during operation. <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circulating (more than 500k ohms) or short-circulating (less than 6.5k ohms) is not found, defective contact of the connector is possible. When the total current has dropped below the set current level continuously for 20 seconds during operation beyond the set capacity, operation is stopped. Three minutes later, operation is started up again, and when the trouble occurs on 4 successive occasions, the error occurs (the timer lamp blinks). <Diagnosis checkpoint> 1. Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is extremely low). 2. Check the control P.C. Board: Check for a broken wire (open-circuit) in the current transformer. (If opencircuit is found, replace the control P.C. Board.) In the case of a scroll compressor (DC motor), H16 is detected only when the regular compressor is operating. High-voltage PWM: When a state in which the fan motor speed is not synchronized with the control signal has been detected on 7 successive occasions: Low-voltage PAM: When the fan lock detection signal has been detected on 7 successive occasions or it has been detected continuously for 25 seconds or when a state in which the fan motor speed is not synchronized with the control signal has been detected on 7 successive occasions: The error occurs (the timer lamp blinks). <Diagnosis checkpoint> 1. Check the nature of the fan lockup trouble. 2. Check for disconnections of the fan motor connectors and for defects in contact, in the fan motor and in the control P.C. Board. Error occurs when the float switch is open for 150 seconds. <Diagnosis checkpoint> 1. Drain blockage 2. Check the conductivity of float switch. H23 3. Check that the resistance of the drain motor is about 200 ohms. Indoor heat exchanger This error occurs when a temperature of under approximately -40C or above approximately 80C has been temp. sensor detected by the heat exchanger temperature sensor continuously for 5 seconds. (This error is not detected during de-icing.) <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 2.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. This error occurs when a temperature of under approximately -40C or above approximately 150C has been detected by the outdoor air temperature sensor for 2 to 5 seconds. (This error is not detected during de-icing.) <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. This error occurs when a temperature of under approximately -60C or above approximately 110C has been detected by the heat exchanger temperature sensor for 2 to 5 seconds. (This error is not detected during deicing.) <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible.

Outdoor Current Transformer
Indoor fan motor mechanism lock
Indoor float switch abnormality

Outdoor air temp. sensor

Outdoor heat exchanger temp. sensor 1
Symbol Diagnosis H30 Outdoor discharge pipe temp. sensor
Diagnosis method Disconnected discharge sensor When the condensation temperature is higher than the discharge temperature + (plus) 6C, a sensor disconnection is detected, operation stops, and the error occurs (the timer lamp blinks). <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected.
Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. Outdoor heat This error occurs when a temperature of under approximately -60C or over approximately 110C has been exchanger temp. detected continuously for 2 to 5 seconds by the outlet temperature sensor of the heat exchanger. sensor 2 <Diagnosis checkpoint> (discharge pipe temp.) 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. This error occurs when a temperature of under -43C or above 80C has been detected by the outdoor unit radiator fin sensor continuously for 2 seconds. <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. This error occurs if the float switch is open three times for 10 seconds or more during a twenty-minute period. <Diagnosis checkpoint> 1. Drain blockage 2. Check the conductivity of float switch. 3. Check that the resistance of the drain motor is about 200 ohms. This error occurs when a temperature of under -45C or above approximately 149C has been detected by the outdoor unit gas side pipe temperature sensor continuously for 2 to 5 seconds. <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. This error occurs when a temperature of under -45C or above 149C has been detected by the outdoor unit liquid side pipe temperature sensor continuously for 2 seconds. <Diagnosis checkpoint> 1. This error occurs when a temperature which is impossibly high or low from a normal standpoint has been detected. Check the sensor, and if open-circuit (more than 500k ohms) or short-circuit (less than 0.5k ohms) is not found, defective contact of the connector or a defective control P.C. Board is possible. This error occurs in rooms other than one in which indoor freezing error has occurred when the pipes have been connected incorrectly, when an outdoor expansion valve is defective or when an expansion valve connector has become disconnected. When the fan motor speed detected when its maximum output is demanded is below 30 rpm. continuously for 15 seconds, the fan motor stops for 3 minutes and then restarted. When this happens on 16 occasions (the error is cleared when the value is normal for 5 minutes), the H97 diagnostic symbol is stored in the memory, and the fan motor stops. <Diagnosis checkpoint> 1. Check the nature of the fan lockup error. 2. Check for disconnections of the fan motor connectors and for defects in contact, in the fan motor and in the control P.C. Board. The restriction on the compressor frequency is started when the temperature of the indoor unit heat exchanger source is between 50C and 52C, the compressor stops at a temperature from 62C to 65C, it is restarted 3 minutes later at below 62C to 65C, and the restriction on the compressor frequency is released at a temperature between 48C and 50C. (No error occurs.) <Diagnosis checkpoint> 1. Check the indoor unit heat exchanger temperature sensor (check for changes in its characteristics and check its resistance): Symptoms include no hot start when operation is started, a failure of the thermostat to turn on (no outdoor unit operation). And, frequent repetition of stopping and startup. 2. Check also for short-circuits indoors and clogging of the air filters.

Outdoor heatsink temp. sensor
Drainage or drain pump abnormality
Outdoor gas pipe temp. sensor
Outdoor liquid pipe temp. sensor

H39 H97

Abnormal indoor operating unit or standby units Outdoor fan motor mechanism lock
Indoor high pressure protection
Symbol Diagnosis H99 Indoor operating unit freezing
Diagnosis method The restriction on the compressor frequency is started when the indoor unit heat exchanger temperature is between 8C and 12C. Operation stops if a temperature below 0C continues for 6 minutes. Three minutes later, operation is started up at a temperature from 3C to 8C. The restriction on the compressor frequency is released at a temperature between 13C and 14C. <Diagnosis checkpoint> 1. A cooling or dry mode operation conducted at a low outside air temperature is mainly to suspect: this is not indicative of any malfunctioning. If the outdoor air temperature rises during automatic operation in the winter months, the dry mode operation is selected. The H99 diagnostic display also appears at such a time. 2. Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is low) or a pipe may be broken, etc.
3. Check also for short-circuits indoors and clogging of the air filters. 4-way valve switching When a difference of 0C to 5C has been detected between the outdoor unit heat exchanger temperature and failure liquid side pipe temperature on 5 occasions, the error occurs. <Diagnosis checkpoint> 1. Check the 4-way valve coil: Check that no power is supplied to the coil during cooling and dry mode operations, and that power is supplied during heating operation. Inspect the coil for broken wires (opencircuit). Indoor standby units freezing 2. If the coil trouble-free, the switching action of the 4-way valve may be defective. When the difference of an intake temperature (room temperature sensor) and the indoor unit heat exchanger temperature (piping sensor) is higher than 10C or an indoor unit heat exchanger temperature of below -1C has been detected continuously for 5 minutes, operation stops. Three minutes later, it is started up, and the error occurs when this has occurred on 3 consecutive occasions. <Diagnosis checkpoint> 1. Check the refrigerating cycle: Expansion valve leakage
2. Check the indoor unit pipe temperature sensor. (Check for changes in its characteristics and check its resistance.) PFC circuit protection When a DC voltage over 393V to 424V has been detected on 16 occasions, this error occurs. <Diagnosis checkpoint> 1. To check whether the shutting valve has been left close by mistake, operation is performed for one to several minutes after the compressor has started up, F93 is stored in the memory as the symptom, and operation stops. 2. Check the inverter circuit (for open-circuiting) in the control P.C. Board: Check the IPM base current (6 locations) within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the memory 30 seconds after the compressor has started up, and operation stops. The error occurs after 4 restarts. 3. Check for broken wires (for open-circuiting) in the compressor winding: Approximately 1 ohm under normal conditions for each phase (same symptom as in 2.)

Refrigeration cycle abnormality
4. Check the power supply voltage has been fluctuating or not. When the compressor frequency is above 55 Hz and the current drops below the prescribed level continuously for 7 minutes, operation stops, and it is restarted 3 minutes later. When the compressor discharge temperature has exceeded the setting and the expansion valve has remained fully open for 80 seconds, operation stops, and it is restarted 3 minutes later. When the stopping described above has occurred on 4 occasions, operation stops, and the error occurs. <Diagnosis checkpoint> 1. Check the refrigerating cycle: Gas may be leaking (more than one-half of the volume of the gas has gone). The diagnosis displays resulting from a gas leak generally change in the following sequence depending on the extent of the gas leak: H99 F97 F91 H16.
The range of this error (F91) is limited. (Compressor protection at the start of the season) Compressor abnormal When a state in which the rotation of the compressor is not synchronized with the control signal has been revolution detected on 8 successive occasions, operation stops, and the error occurs. <Diagnosis checkpoint> 1. To check whether the shutting valve has been left close by mistake, operation is performed for one to several minutes after the compressor has started up, F93 is stored in the memory as the symptom, and operation stops. 2. Check the inverter circuit (for open-circuit) in the control P.C. Board: Check the IPM base current (6 locations) within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the memory 30 seconds after the compressor has started up, and operation stops. The error occurs after 4 restarts. 3. Check for broken wires (open-circuit) in the compressor winding: Approximately 1 ohm under normal conditions for each phase (same symptom as in 2.) IPM (Power transistor When error occurs from the electrical parts radiation fin temperature sensor and OLP output during operation, module) or operation stops, and it is restarted 3 minutes later. If the trouble occurs on 4 occasions, operation stops, and the compressor error occurs. overheating <Diagnosis checkpoint> 1. Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be defective. (The outdoor unit fan is not running.) 2. Defective IPM (Outdoor unit control P.C. Board) 3. Gas leaks. Shutting valve is not opened.

Symbol Diagnosis Diagnosis method F97 Compressor high This error occurs and operation stops when this happens on 6 occasions (it is cleared when the operation is discharge temperature normal for 20 minutes). <Diagnosis checkpoint> 1. Check the refrigerating cycle: Gas may be leaking (The amount of refrigerant is low). The stopping of the outdoor unit from time to time is a symptom of this error. 2. When operation steps with this error occurs, check the compressor temperature sensor. (Check for changes in its characteristics and check its resistance.) 3. Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be defective. (The fan will not run because of open-circuiting.) F98 Total running current protection (The protection may be activated by an overload, and the F97 error will remain stored in the memory.) When the total current exceeds the setting (17A to 20A), frequency control is started, and if it then exceeds the setting, operation stops, and the error occurs. <Diagnosis checkpoint> 1. Check the AC voltage at the outdoor unit terminal board during operation: The voltage drop must be within 5% of the voltage when operation has stopped (110% of rated voltage even during operation). If the voltage drop exceeds 5% of if the voltage changes suddenly, inspect whether the power supply cord and indoor/outdoor unit connection cables are too long or too small in diameter, etc. 2. Check whether something is interfering with the dissipation of the heat exchanger outdoors (during cooling operation): Normally, the capacity is limited by the current so that outdoor unit doesnt stop, and the diagnostic display does not appear. When "Output current error", which occurs when the prescribed current level is exceeded, has occurred on 16 consecutive occasions, operation stops, and the error occurs. <Diagnosis checkpoint> 1. Check whether the compressor is defective (locked up or shorted winding). Check the outdoor unit control P.C. Board.

DC peak detection

11 Installation Instructions

12 Disassembly of Parts

High voltages 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.
12.1. Detaching the fan motor and cross flow fan
1) 2) Open the air inlet section of the front grille. Unscrew the 4 screws on the front grille, then disengage the catches with a screwdriver and detach the front grille. Loosen the screw on the cover and detach the cover. Unscrew the 2 screws on the control section cover. Detach the connectors going from the control board to the drain pump and from the receiver and display sections.

3) 4) 5)

Unscrew the screw and disengage the 2 catches on the air outlet grille, then take out the drain pan plug to drain off excess water. Unscrew the 4 screws and disengage the 5 catches on the drain pan.
Detach the air guide and unscrew the screw on the heat exchanger. Detach the float switch and unscrew the 3 screws and disengage the 2 catches on the fan motor holder.
10) Loosen the screw fixing the shaft between the cross flow fan and the fan motor and detach the fan motor. 11) Remove the cross flow fan.
12.2. Detaching the drain pump
8) Unscrew the screw on the drain pump holder and detach it. 9) Detach the drain hose from the drain pump and remove the drain pump.
12.3. Detaching the control board
1) Open the air inlet section of the front grille. 2) Unscrew the 4 screws on the front grille, then disengage the catches with a screwdriver and detach the front grille.
3) Loosen the screw on the cover and detach the cover. 4) Unscrew the 2 screws on the control section cover and detach all connectors.
5) Disengage the catch on the control board and remove it.
12.4. Detaching the louver motor
3) Loosen the screw on the cover and detach the cover. 4) Unscrew the 2 screws on the control section cover and detach the connector for the louver motor. 5) Unscrew the screw and disengage the 2 catches on the air outlet grille.
6) Unscrew the 2 screws on the louver motor on the back of the air outlet grille and remove the louver motor.

13 Technical Data

13.1. OPERATION CHARACTERISTICS
14 Exploded View & Replacement Parts List

14.1. 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.
14.2. Replacement Parts List
<Model: CS-ME7EB1E / CS-ME10EB1E / CS-ME12EB1E / CS-ME14EB1E>
Ref. No. 66 Part Name & Description FLOAT SWITCH THERMAL FUSE TERMINAL BOARD COMPLETE SENSOR COMPLETE TERMINAL PLATE FOR EARTH LEAD WIRE COMPLETE (AS) PC BOARD (MAIN) PC BOARD (RECEIVER) REMOTE CONTROL AIR SWING MOTOR FAN MOTOR EVAPORATOR DRAIN PUMP DRAIN CAP CHASSIS COMPLETE FAN MOTOR BRACKET PARTICULAR PLATE PARTICULAR PIECE-1 PARTICULAR PIECE-2 PARTICULAR PIECE-3 DRAIN PUMP BRACKET DISCHARGE GRILE COMPLETE LOUVER VERTICAL LOUVER DECORATION PANEL INSULATION SHEET CROSS-FLOW FAN COMPLETE CONTROL BOARD BOX CONTROL COVER-1 CONTROL COVER-2 CONTROL COVER-3 HOLDER SENSOR DRAIN TRAY BELT GUTTER BUSHING FOR DRAIN PUMP-1 BUSHING FOR DRAIN PUMP-2 BUSHING CAP (1/4) CAP (3/8) CAP FLUCRUM DRAIN PIPE DRAIN HOSE COMPLETE TUBE ASSY (3/8) TUBE ASSY (1/4) FLARE NUT (1/4) FLARE NUT (3/8) JOINT FOR DRAIN PIPE ZNR FUSE (250V 3A) OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS Qty CS-ME7EB1E CWA121207 CWA16C1020J CWA28K1045J CWA50C2100 CWA64C1005 CWA67C5811 CWA73C1946 CWA744084 CWA75C2610X CWA98168 ARW50A8P30AC CWB302119 CWB532010J CWB82018 CWD50C260 CWD54232 CWD66238 CWD76223 CWD76225 CWD91197 CWD93938 CWA20C2490 CWE24423 CWE24C101 CWE35K1007 CWG10467 CWH02K117X CWH10931 CWH131172 CWH13424 CWH13426 CWH32137 CWH40C1022 CWH4605004 CWH481002X CWH50196 CWH50197 CWH50198J CWH52061 CWH52062 CWH52160 CWH64C017 CWH851109 CWH85C1031 CWT022528 CWT024003 CWT25086 CWT25087 CWT29116 ERZVEAV511 XBA2C31TR0 CWF565240 CWF565241 CWF612962 CWF612963 CWF612968 Part No. CS-ME10EB1E CS-ME12EB1E CWA73C1947 CWA73C1948 Remarks CS-ME14EB1E CWA73C2170 CWB30C1171 CWH501030 CWT022529 CWT024004 l l l l

l l l l l l

(Note) Other parts except the operation manual and the installation manual are parts for RoHS. "l" marked parts are recommended to be kept in stock. All parts are supplied from ACD, JAPAN (VENDER CODE : 00025800).

Printed in Japan

Order No. MAC0801088C2

Air Conditioner

Indoor Unit Outdoor Unit CS-CE7HKEW CU-CE7HKE CS-CE9HKEW CU-CE9HKE CS-CE12HKEW CU-CE12HKE
Please file and use this manual together with the service manual for Model No. CU-2E18CBPG, CU-3E23CBPG, CU4E27CBPG, Order No. RAC0209005C2, Model No. CU-3E18EBE, Order No. RAC0503011C2 and Model No. CU-2E15GBE, Order No. MAC0704001A2.

TABLE OF CONTENTS

PAGE 1 Safety Precautions----------------------------------------------- Specifications ----------------------------------------------------- 4 2.1. CS-CE7HKEW CU-CE7HKE -------------------------- 4 2.2. CS-CE9HKEW CU-CE9HKE -------------------------- 6 2.3. CS-CE12HKEW CU-CE12HKE ----------------------- 8 2.4. Outdoor Unit: CU-2E15GBE ---------------------------10 2.5. Outdoor Unit: CU-3E18EBE --------------------------- 11 2.6. Outdoor Unit: CU-3E23CBPG CU4E27CBPG-------------------------------------------------Features ------------------------------------------------------------Location of Controls and Components ------------------18 4.1. Indoor Unit--------------------------------------------------PAGE 4.2. Outdoor Unit----------------------------------------------- 18 4.3. Remote Control------------------------------------------- 18 Dimensions ------------------------------------------------------- 19 5.1. Indoor Unit ------------------------------------------------- 19 5.2. Outdoor Unit----------------------------------------------- 20 Refrigeration Cycle Diagram -------------------------------- 21 Block Diagram --------------------------------------------------- 22 Wiring Connection Diagram--------------------------------- 23 8.1. Indoor Unit ------------------------------------------------- 23 8.2. Outdoor Unit----------------------------------------------- 24 Electronic Circuit Diagram----------------------------------- 25 9.1. Indoor Unit ------------------------------------------------- 25
2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd. (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law.
9.2. Outdoor Unit ----------------------------------------------- Printed Circuit Board ------------------------------------------ 27 10.1. Indoor Unit ------------------------------------------------- 27 10.2. Outdoor Unit ----------------------------------------------- Installation Instruction ---------------------------------------- 30 11.1. Select The Best Location ------------------------------ 30 11.2. Indoor/Outdoor Unit Installation Diagram ---------- 30 11.3. Indoor Unit ------------------------------------------------- 31 11.4. Outdoor Unit ----------------------------------------------- Operation Control----------------------------------------------- 37 12.1. Basic Function -------------------------------------------- 37 12.2. Indoor Fan Motor Operation --------------------------- 38 12.3. Outdoor Fan Motor Operation------------------------- 39 12.4. Airflow Direction ------------------------------------------ 39 12.5. Quiet operation (Cooling Mode/Cooling area of Dry Mode)----------------------------------------------- 40 12.6. Quiet operation (Heating) ------------------------------ 40 12.7. Powerful Mode Operation ------------------------------ 41 12.8. Timer Control---------------------------------------------- 41 12.9. Auto Restart Control------------------------------------- 41 12.10. Indication Panel------------------------------------------- 42 12.11. Patrol Operation ------------------------------------------ 42 12.12. e-ion Operation ------------------------------------------- Protection Control ---------------------------------------------- 47

2 Specifications

2.1. CS-CE7HKEW CU-CE7HKE
ITEM Performance Test Condition C Capacity O O L EER I N G Noise Level H Capacity E A T COP I N Noise Level G Moisture Removal QLo Lo Air Volume Me Hi SHi Refrigeration Control Device Refrigeration Oil Refrigerant (R410A) Height Dimension Net Weight Pipe Diameter Standard Length Pipe Length Range Height Difference Additional Gas Amount Refrigeration Charge Less Drain Hose Inner Diameter Length Type Compressor Motor Type Rated Output W Gas Liquid Width Depth cm3 g (oz) mm (inch) mm (inch) mm (inch) kg (lbs) mm (inch) mm (inch) m (ft) m (ft) m (ft) g/m (oz/ft) m (ft) mm mm kW kCal/h W/W kCal/hW dB (A) Power level dB kW kCal/h W/W kCal/hW dB (A) Power level dB l/h pt/h m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) Cooling; 4.5 (160) Heating; 5.25 (190) Cooling; 5.35 (190) Heating; 5.9 (210) Cooling; 7.5 (270) Heating; 8.45 (300) Cooling; 10.2 (360) Heating; 10.7 (380) Cooling; 10.6 (370) Heating; 11.1 (390) 280 (11-1/32) 799 (31-15/32) 183 (7-7/32) 9 (20) 9.52 (3/8) 6.35 (1/4) 7.5 (24.6) 3 (9.8) ~ 15 (49.2) 15 (49.2) 20 (0.2) 7.5 (24.6) Hermetic Motor Brushless (6-pole) 650 UNIT INDOOR UNIT EUROVENT 2.05 (0.70 ~ 2.40) 1760 (600 ~ 2060) 4.36 (4.12 ~ 4.14) 3.74 (3.53 ~ 3.55) High 37, Low 24, QLo 20 High 48, Low 35, QLo 31 2.80 (0.70 ~ 4.00) 2410 (600 ~ 3440) 4.41 (4.38 ~ 3.92) 3.80 (3.75 ~ 3.37) High 38, Low 25, QLo 22 High 49, Low 36, QLo 33 1.3 2.7 Cooling; 28.8 (1020) Heating; 28.8 (1020) Check Valve & Capillary Tube RB68A or Freol Alpha68M (320) 790 (27.9) 540 (21-9/32) 780 (30-23/32) 289 (11-13/32) 33 (73) High High OUTDOOR UNIT
ITEM Type Material Motor Type Input Power Fan Output Power QLo (Cool/Heat) Lo (Cool/Heat) Fan Speed Me (Cool/Heat) Hi (Cool/Heat) SHi (Cool/Heat) Fin Material Fin Type Heat Exchanger Row x Stage x FPI Size (W x H x L) Air Filter Material Type
INDOOR UNIT Cross-Flow Fan ASG20K1 Transistor (8-pole)
OUTDOOR UNIT Propeller Fan PP Induction (6-pole) 750 / Aluminium Corrugated Fin 2 x 24 x 17 36.4 x 504 x

W W rpm rpm rpm rpm rpm

/ / / / /1390 Aluminium (Pre Coat) Slit Fin 2 x 15 x 17
610 x 315 x 25.4 Polypropelene One-Touch
1. Cooling capacities are based on indoor temperature of 27 C D.B. (80.6 F D.B.), 19.0 C W.B. (66.2 F W.B.) and outdoor air temperature of 35 C D.B. (95 F D.B.), 24 C W.B. (75.2 F W.B.) 2. Heating capacities are based on indoor temperature of 20 C D.B. (68 F D.B.) and outdoor air temperature of 7 C D.B. (44.6 F D.B.), 6 C W.B. (42.8 F W.B.)
Item Power Source (Phase, Voltage, Cycle) Unit V Hz Input Power Starting Current Running Current Maximum current Power Factor W A A A % Single Cooling; 470 (170 ~ 580) Heating; 635 (160 ~ 1020) 3.0 Cooling; 2.2 Heating; 3.0 4.8 Cooling; 93 Heating; 92 m Electronic Control Electronic Control
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor. Power Cord Thermostat Protection Device Number of core Length
Note Specifications are subject to change without notice for further improvement.

CS-CE9HKEW CU-CE9HKE

ITEM UNIT kW kCal/h W/W kCal/hW dB (A) Power level dB kW kCal/h W/W kCal/hW dB (A) Power level dB l/h pt/h QLo Lo m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) Cooling; 4.5 (160) Heating; 6.1 (220) Cooling; 5.5 (190) Heating; 6.5 (230) Cooling; 7.8 (280) Heating; 8.8 (310) Cooling; 10.4 (370) Heating; 11.0 (390) Cooling; 10.95 (390) Heating; 11.7 (410) cm Height

INDOOR UNIT EUROVENT

OUTDOOR UNIT 2.60 (0.80 ~ 3.00) 2240 (690 ~ 2580) 4.41 (4.57 ~ 4.00) 3.80 (3.94 ~ 3.44)
Performance Test Condition C Capacity O O L EER I N Noise Level G H Capacity E A T COP I N Noise Level G Moisture Removal
High 39, Low 25, QLo 20 High 50, Low 36, QLo 31 3.60 (0.80 ~ 5.00) 3100 (690 ~ 4300) 4.31 (4.85 ~ 3.73) 3.71 (4.18 ~ 3.21) High 40, Low 27, QLo 24 High 51, Low 38, QLo 35 1.6 3.4

High 46 59

High 47 60
Cooling; 29.8 (1050) Heating; 29.8 (1050) Check Valve & Capillary Tube RB68A or Freol Alpha68M (320) 965 (34.1) 540 (21-9/32) 780 (30-23/32) 289 (11-13/32) 34 (75) 9.52 (3/8) 6.35 (1/4) 7.5 (24.6)

Air Volume

Me Hi SHi
Refrigeration Control Device Refrigeration Oil Refrigerant (R410A) Dimension Net Weight Pipe Diameter Standard Length Pipe Length Range Height Difference Additional Gas Amount Refrigeration Charge Less Drain Hose Inner Diameter Length Type Compressor Motor Type Rated Output W Gas Liquid Width Depth

280 (11-1/32) 799 (31-15/32) 183 (7-7/32) 9 (20)
g (oz) mm (inch) mm (inch) mm (inch) kg (lbs) mm (inch) mm (inch) m (ft) m (ft) m (ft) g/m (oz/ft) m (ft) mm mm
3 (9.8) ~ 15 (49.2) 15 (49.2) 20 (0.2) 7.5 (24.6) Hermetic Motor Brushless (6-pole) 700
OUTDOOR UNIT Propeller Fan PP Induction (6-pole) 770 / Aluminium Corrugated Fin 2 x 24 x 17 36.4 x 504 x
/ / / / / 1490 Aluminium (Pre Coat) Slit Fin 2 x 15 x 19
Item Power Source (Phase, Voltage, Cycle) Unit V Hz Input Power Starting Current Running Current Maximum current Power Factor W A A A % Single Cooling; 590 (175 ~ 750) Heating; 835 (165 ~ 1340) 3.9 Cooling; 2.8 Heating; 3.9 5.9 Cooling; 92 Heating; 93 m Electronic Control Electronic Control

CS-CE12HKEW CU-CE12HKE

ITEM UNIT kW kCal/h W/W kCal/hW dB (A) Power level dB kW kCal/h W/W kCal/hW dB (A) Power level dB l/h pt/h QLo Lo m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) Cooling; 4.6 (160) Heating; 8.0 (280) Cooling; 6.4 (230) Heating; 8.5 (300) Cooling; 8.75 (310) Heating; 10.2 (360) Cooling; 11.2 (400) Heating; 11.7 (410) Cooling; 11.7 (410) Heating; 12.1 (430) cm Height
OUTDOOR UNIT 3.50 (0.80 ~ 4.00) 3010 (690 ~ 3440) 3.83 (4.32 ~ 3.39) 3.29 (3.73 ~ 2.92)
High 42, Low 28, QLo 20 High 53, Low 39, QLo 31 4.80 (0.80 ~ 6.50) 4130 (690 ~ 5590) 3.81 (4.57 ~ 3.44) 3.28 (3.94 ~ 2.96) High 42, Low 33, QLo 30 High 53, Low 44, QLo 41 2.0 4.2

High 48 61

High 50 63
Cooling; 31.0 (1090) Heating; 31.0 (1090) Check Valve & Capillary Tube RB68A or Freol Alpha68M (320) 980 (34.6) 540 (21-9/32) 780 (30-23/32) 289 (11-13/32) 34 (75) 9.52 (3/8) 6.35 (1/4) 7.5 (24.6)
OUTDOOR UNIT Propeller Fan PP Induction (6-pole) 830 / Aluminium Corrugated Fin 2 x 24 x 17 36.4 x 504 x
/ / / / / 1550 Aluminium (Pre Coat) Slit Fin 2 x 15 x 21
Unit Single Cooling; 915 (185 ~ 1180) Heating; 1260 (175 ~ 1890) 5.8 Cooling; 4.2 Heating; 5.8 8.7 Cooling; 95 Heating; 95
Power Source (Phase, Voltage, Cycle)
Input Power Starting Current Running Current Maximum current Power Factor

W A A A %

Power factor means total figure of compressor, indoor fan motor and outdoor fan motor. Power Cord Thermostat Protection Device Number of core Length m Electronic Control Electronic Control

Outdoor Unit: CU-2E15GBE

Outdoor Unit: CU-3E18EBE
Outdoor Unit: CU-3E23CBPG CU-4E27CBPG

3 Features

Inverter Technology - Wider output power range - Energy saving - Quick Cooling - Quick Heating - 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 Environment Protection - Non-ozone depletion substances refrigerant (R410A) Long Installation Piping - CS/CU-CE7/9/12HK, long piping up to 15 meters Easy to use remote control Quality Improvement - Random auto restart after power failure for safety restart operation - Gas leakage protection - Prevent compressor reverse cycle - Inner protector to protect Compressor - Noise prevention during soft dry operation Operation Improvement - Quiet mode to reduce the indoor unit operating sound - Powerful mode to reach the desired room temperature quickly - 24-hour timer setting Serviceability Improvement - Breakdown Self Diagnosis function

Multi Split Combination Possibility: - A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E15GBE, CU-2E18CBPG. - A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E18EBE, CU-3E23CBPG. - A single outdoor unit enables air conditioning of up to four separate rooms for CU-4E27CBPG.
4 Location of Controls and Components

4.1. Indoor Unit

Outdoor Unit

Remote Control

5 Dimensions

5.1. Indoor Unit

6 Refrigeration Cycle Diagram
Piping size Model CE7HK, CE9HK, CE12HK Gas 3/8 Liquid 1/4

Rated Length (m) 7.5

Common Length (m) 7.5

Max. Elevation (m) 15

Min. Piping Length (m) 3
Max. Piping Length (m) 15
Additional Refrigerant (g/m) 20
If piping length is over common length, additional refrigerant should be added as shown in the table.

7 Block Diagram

8 Wiring Connection Diagram

8.1. Indoor Unit

9 Electronic Circuit Diagram

9.1. Indoor Unit

10 Printed Circuit Board

10.1. Indoor Unit

10.1.1. Main Printed Circuit Board
10.1.2. Power Printed Circuit Board
10.1.3. Indicator Printed Circuit Board
10.1.4. Patrol Printed Circuit Board

10.2. Outdoor Unit

11 Installation Instruction
11.1. Select The Best Location
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. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where noise prevention is taken into consideration. Do not install the unit near the door way. Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. Recommended installation height for indoor unit shall be at least 2.5 m. OUTDOOR UNIT If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. There should not be any animal or plant which could be affected by hot air discharged. 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 the rated length, additional refrigerant should be added as shown in the table.

Rated Max Min. Max. Additional Piping size Length Elevation Piping Piping Refrigerant (m) (m) Length Length (g/m) Gas Liquid (m) (m) 7.5 7.20
11.2. Indoor/Outdoor Unit Installation Diagram
CE7HKE, 3/8 1/4 CE9HKE CE12HKE 1/2 1/4
Example: For CE7HKE If the unit is installed at 10 m distance, the quantity of additional refrigerant should be 50g. (10 - 7.5) m x 20 g/m = 50 g

11.3. Indoor Unit

11.3.1. HOW TO FIX INSTALLATION PLATE 11.3.2.
The mounting wall is strong and solid enough to prevent it from the vibration.
TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING
1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. 3. Cut the sleeve until it extrudes about 15 mm from the wall.
Caution When the wall is hollow, please be sure to use the sleeve for tube assy to prevent dangers caused by mice biting the connecting cable.
The centre of installation plate should be at more than 450 mm at right and left of the wall. The distance from installation plate edge to ceiling should more than 67 mm. From installation plate left edge to units left side is 74 mm. From installation plate right edge to units right is 94 mm.
: For left side piping, piping connection for liquid should be about 15 mm from this line. : For left side piping, piping connection for gas should be about 45 mm from this line. : For left side piping, piping connection cable should be about 800 mm from this line.
4. Finish by sealing the sleeve with putty or caulking compound at the final stage.
1. Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the concrete wall, consider using anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge.

11.3.3.

2. Drill the piping plate hole with 70 mm hole-core drill. Line according to the left and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively. Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side.

INDOOR UNIT INSTALLATION

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 left bottom piping also.)

11.3.4.

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 1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord. Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoors respectively. Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.

CAUTION

If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step above take the following measure:. If the leak stops when the piping connections are tightened further, continue working from step If the leak does not stop when the connections are retightened, repair the location of leak. Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause frostbite.

11.4.4.

CONNECT THE CABLE TO THE OUTDOOR UNIT
(FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT) 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord.
3. Secure the cable onto the control board with the holder (clamper).
4. Cable connection to the power supply through knife switch (Disconnecting means). Connect the approved polychloroprene sheathed power supply cable (3 x 1.5 mm2), type designation 245 IEC 57 or heavier cord to the terminal board, and connect the other end of the cable to knife switch (Disconnecting means). Note: Knife switch (Disconnecting means) should have minimum 3.5 mm contact gap. Secure the cable onto the control board with the holder (clamper).

11.4.5.

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. 2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above.

12 Operation 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. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature.
12.1.1. Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.
12.1.2. Cooling Operation 12.1.2.1. Thermostat control
Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5 C. Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point.

12.1.3. Soft Dry Operation 12.1.3.1. Thermostat control
12.1.4. Heating Operation 12.1.4.1. Thermostat control
Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0 C. Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF point.
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, indoor intake air temperature and outdoor air temperature. During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.
Every 30 minutes, the indoor and outdoor temperature is judged. Based on remote control setting temperature, the value of T1 will increase up to 10 C, T2 will decrease by 3 C and T3 will decrease up to 8 C. The Auto Operation Mode shifting will take place whenever operation mode changed from Cool/Soft Dry to Heating or vice versa.
12.2. Indoor Fan Motor Operation
A. Basic Rotation Speed (rpm) i. Manual Fan Speed [Cooling, Dry] Fan motors number of rotation is determined according to remote control setting.
Remote Control Tab (rpm) O SHi O Me+ O Me O MeO Lo
[Heating] Fan motors number of rotation is determined according to remote control setting.
Remote Control Tab (rpm) O Hi O Me+ O Me O MeO Lo
ii. Auto Fan Speed [Cooling, Dry] According to room temperature and setting temperature, indoor fan speed is determined automatically. The indoor fan will operate according to pattern below.
[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 < 50 rpm continue for 10 seconds, then fan motor error counter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then H19 - fan motor error is detected. Operation stops and cannot on back.

Error Reset Method Press OFF/ON button to OFF the operation. Press AUTO OFF/ON button at indoor unit to OFF the operation. OFF Timer activates. Press e-ion button during e-ion individual mode. Power supply reset. iii. e-ion breakdown Judgement Method When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, due to PCB or filters high voltage power supply damage. Operations except e-ion continue. Both Timer indicator and e-ion indicator blink. Troubleshooting Method Press e-ion button or OFF/ON button to stop the operation. Change main circuit board or filters high voltage power supply. When lo-feedback voltage supplied to e-ion Air Purifying system during e-ion operation, e-ion indicator and Timer indicator stop blinking.

13 Protection Control

13.1. Protection Control For All Operations
13.1.1. Restart Control (Time Delay Safety Control)
The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. This control is not applicable if the power supply is cut off and on again. This phenomenon is to balance the pressure inside the refrigerant cycle.
13.1.2. 30 Seconds Forced Operation
Once the air conditioner is turned on, the compressor will not stop within 30 seconds in a normal operation although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON button at the remote control is permitted or the Auto OFF/ON button at indoor unit. The reason for the compressor to force operation for minimum 30 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit.
13.1.3. Total Running Current Control
1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be decreased. 2. If the running current does not exceed X value for 5 seconds, the frequency instructed will be increased. 3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3 minutes.
Model Operation Mode Cooling/Soft Dry (A) Cooling/Soft Dry (B) Heating X (A) 3.95 3.6 4.37 E7HK Y (A) 15.0 15.0 15.0 X (A) 4.54 4.12 5.57 E9HK Y (A) 15.0 15.0 15.0 X (A) 6.86 6.35 8.03 E12HK Y (A) 15.0 15.0 15.0 X (A) 7.52 7.16 8.55 E15HK Y (A) 15.0 15.0 15.0

13.1.8. Low Frequency Protection Control 1
When the compressor operate at frequency lower than 24 Hz continued for 20 minutes, the operation frequency will be changed to 23 Hz for 2 minutes.
13.1.9. Low Frequency Protection Control 2
When all the below conditions comply, the compressor frequency will change to lower frequency.
Temperature, T, for: Indoor intake air ( C) Outdoor air ( C) Indoor heat exchanger ( C) Cooling/Soft Dry T < 15 or T T < 16 or T T < 38 T Heating T < 4 or T 0 24
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.
13.2.2. Cooling Overload Control
Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency) The compressor stop if outdoor pipe temperature exceeds 61 C If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95 indicated: outdoor high pressure rise protection)
13.2.3. Freeze Prevention Control
1. 2. 3. 4. When indoor heat exchanger temperature is lower than 0 C continuously for 6 minutes, compressor will stop operating. Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 13 C. At the same time, indoor fan speed will be higher than during its normal operation. If indoor heat exchanger temperature is higher than 13 C for 5 minutes, the fan speed will return to its normal operation.
13.2.4. Dew Prevention Control 1
To prevent dew formation at indoor unit discharge area. This control will be activated if: - Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. - When Cooling or Dry mode is operated more than 20 minutes or more. This control stopped if: - Compressor stopped. - Remote control setting changed (fan speed / temperature). - Outdoor air temperature and indoor intake temperature changed. Fan speed, angle of louver (vertical airflow angle) will be adjusted accordingly in this control. - Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode. - The angle of horizontal louver will be changed as table below:
Operation Mode Cooling and e-ion Airflow Direction 1 Auto Manual 2 Vane Angle ( ) ~ 4 5
13.2.5. Dew Prevention Control 2
To prevent dew formation at indoor unit discharge area. This control starts if all conditions continue for 20 minutes: - Operated with Cooling or Soft Dry Mode. - Indoor intake temperature is between 25 C and 29 C. - Outdoor air temperature is less than 30 C. - Quiet Lo fan speed. This control stopped if: - When receive air swing change signal from Remote Control. The horizontal louver will be fixed at 24 (regardless of Auto or Manual Airflow Direction Setting).

14.2. Select Remote Control Transmission Code
There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit will only operate when received signal with same transmission code from remote control. This could prevent signal interference when there are 2 or more indoor units installed nearby together. To change remote control transmission code, short or open jumpers at the remote control printed circuit board.
Remote Control Printed Circuit Board Jumper A (J-A) Jumper B (J-B) Remote Control No. Short Open A (Default) Open Open B Short Short C Open Short D
During Remote Control Number Switch Mode, press any button at remote control to transmit and store the transmission code to the EEPROM.
14.3. Remote Control Button

14.3.1. SET BUTTON

To check current remote control transmission code - Press for more than 10 seconds. To change the air quality sensor sensitivity - Press and release with pointer. - Press the Timer Decrement button to select sensitivity: 1. Low Sensitivity 2. Standard (Default) 3. Hi Sensitivity - Confirm setting by pressing Timer Set button, a Beep sound will be heard. LCD returns to original display after 2 seconds. - LCD returns to original display if remote control does not operate for 30 seconds.

14.3.2. CLOCK BUTTON

To change the remote controls time format - Press for more than 5 seconds.

14.3.3. RESET (RC)

To clear and restore the remote control setting to factory default - Press once to clear the memory.

14.3.4. RESET (AC)

To restore the units setting to factory default - Press once to restore the units setting.

14.3.5. TIMER

To change indoor unit indicators LED intensity - Press continuously for 5 seconds.

14.3.6. TIMER

To change remote control display from Degree Celsius ( C) to Degree Fahrenheit ( F). - Press continuously for 10 seconds.

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.

To clear memorized error (Protective operation) status after repair: 1. Turn power on (in standby condition). 2. Press the AUTO button for 5 seconds (A beep receiving sound) on the main unit to operate the unit at Forced Cooling Operation modes. 3. Press the CHECK button on the remote controller for about 1 second with a pointed object to transmit signal to main unit. A beep sound is heard from main unit and the data is cleared. Temporary Operation (Depending on breakdown status) 1. Press the AUTO button (A beep receiving sound) on the main unit to operate the unit. (Remote control will become possible.) 2. The unit can temporarily be used until repaired.
Error Code H23 H27, H28 Operation Cooling Cooling, Heating Temporary items Emergency Operation with limited power

15.3. Error Codes Table

Diagnosis display H00 H11 H12 H14 H15 H16 H19 H23 H25 H27 H28 Abnormality / Protection control No abnormality detected Indoor / outdoor abnormal communication Connection capability rank abnormal Indoor intake air temperature sensor abnormality Outdoor compressor temperature sensor abnormality Outdoor Current Transformer open circuit Indoor fan motor merchanism lock Indoor heat exchanger temperature sensor abnormality E-Ion breakdown Outdoor air temperature sensor abnormality Outdoor heat exchanger temperature sensor abnormality Indoor/Outdoor wrong connection Indoor/outdoor mismatch (brand code) Abnormal gas sensor Indoor high pressure protection Indoor heat exchanger anti-freezing protection Cooling / Heating cycle changeover abnormality PFC control Refrigeration cycle abnormal Outdoor compressor abnormal revolution Cool high pressure protection IPM (power transistor) overheating protection Outdoor compressor overheating protection Total running current protection Outdoor Direct Current (DC) peak detection Abnormality Judgement > 1 min after starting operation Continue for 5 sec. Continue for 5 sec. 7 times occurance continuously. Continue for 5 sec. Continue for 5 sec. Continue for 5 sec. Emergency operation Normal operation Indoor fan operation only O (Cooling only) O O Internal / external cable connections Indoor / Outdoor PCB Intake air temperature sensor (detective or disconnected) Compressor temperature sensor (detective or disconnected) Outdoor PCB IPM (Power transistor) module Indoor PCB Fan motor Heat exchanger temperature sensor (defective or disconnected) Indoor PCB E-Ion PCB Outdoor temperature sensor (defective or disconnected) Outdoor heat exchanger temperature sensor (defective or disconnected) Indoor/Outdoor supply voltage Gas sensor (defective or disconnected) Air filter dirty Air circulation short circuit Insufficient refrigerant Air filter dirty 4-way valve V-coil Voltage at PFC No refrigerant (3-way valve is closed) Outdoor compressor Outdoor refrigerant circuit Excess refrigerant Improper heat radiation IPM (Power transistor) Insufficient refrigerant Compressor Excess refrigerant Improper heat radiation Outdoor PCB IPM (Power transistor) Compressor Primary location to verify

TC - Total Cooling Capacity (kW) SHC - Sensible Heat Capacity (kW) IP - Input Power (kW) Indoor 27 C/19 C Outdoor 35 C/24 C
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.

REF. NO. FAN MOTOR

PART NAME & DESCRIPTION CHASSY COMPLETE CROSS FLOW FAN COMPLETE BEARING ASSY SCREW - CROSS FLOW FAN EVAPORATOR FLARE NUT (1/4) FLARE NUT (3/8) (1/2) CLIP FOR SENSOR DISCHARGE GRILLE COMPLETE VERTICAL VANE CONNECTING BAR CONNECTING BAR CONNECTING BAR AIR SWING MOTOR CAP - DRAIN TRAY HORIZONTAL VANE COMPLETE BACK COVER CHASSIS CONTROL BOARD CASING TERMINAL BOARD COMPLETE ELECTRONIC CONTROLLER - MAIN ELECTRONIC CONTROLLER - POWER SENSOR COMPLETE CONTROL BOARD FRONT COVER INDICATOR COMPLETE INDICATOR HOLDER INDICATOR HOLDER CONTROL BOARD FRONT COVER CO. REMOTE CONTROL CO. FRONT GRILLE COMPLETE INTAKE GRILLE COMPLETE GRILLE DOOR COMPLETE E-ION FILTER SCREW - FRONT GRILLE CAP - FRONT GRILLE DRAIN HOSE INSTALLATION HOLDER BAG COMPLETE - INSTALLATION SCREW FULCRUM E-ION AIR PURIFYING SYSTEM ION - GENERATOR OPERATION INSTRUCTIONS INSTALLATION INSTRUCTIONS (ENG) INSTALLATION INSTRUCTIONS (SWE, NOR, DAN, FIN)

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CS-CE7HKEW CWD50C1572 ARW61F8P30AC CWH02C1045 CWH64K007 CWH551146 CWB30C2484 CWT251030 CWT251031 CWH32143 CWE20C2621 CWE241157 CWE261092 CWE261071 CWE261091 CWA981091 CWH521096 CWE24C1176 CWD932454 CWH102321 CWA28C2305 CWA73C2957 CWA745131 CWA50C2122 CWH131207 CWE39C1168 CWD932744 CWD932745 CWH13C1171 CWA75C3177 CWE11C3896 CWE22C1415 CWE14C1010 CWD00K1004 XTT4+16CFJ CWH521109 CWH851063 CWH361067 CWH82C067 CWH621049 CWH14C5332 CWH94C0014 CWF565860 CWF613375 CWF613376

CS-CE9HKEW

CS-CE12HKEW REMARKS

CWB30C2386

CWB30C2389 CWT251032
O CWA73C3018 CWA73C3019 O O O O
(NOTE) All parts are supplied from PHAAM, Malaysia (Vendor Code: 061). O marked parts are recommended to be kept in stock.

18.2. Outdoor Unit

REF. NO. 43
PART NAME & DESCRIPTION CHASSY ASSY SOUND PROOF MATERIAL FAN MOTOR BRACKET SCREW - FAN MOTOR BRACKET FAN MOTOR SCREW - FAN MOTOR MOUNT PROPELLER FAN ASSY NUT - PROPELLER FAN COMPRESSOR CRANKCASE HEATER ANTI - VIBRATION BUSHING NUT - COMPRESSOR MOUNT CONDENSER TUBE ASSY CO. (CAP. / CHK VALVE) HOLDER COUPLING 2-WAYS VALVE (LIQUID) 3-WAYS VALVE (GAS) REACTOR TERMINAL COVER NUT - TERMINAL COVER SOUND PROOF BOARD SOUND PROOF MATERIAL SOUND PROOF MATERIAL SENSOR COMPLETE CONTROL BOARD COVER ELECTRONIC CONTROLLER - MAIN TERMINAL BOARD ASSY CABINET SIDE PLATE CO. SENSOR COMPLETE CABINET SIDE PLATE CABINET FRONT PLATE CO. CABINET TOP PLATE PLATE - C. B. COVER CONTROL BOARD COVER CO. HANDLE 4-WAYS VALVE V - COIL COMPLETE WIRE NET L - TUBE PACKING - L. TUBE HOLDER SENSOR SOUND PROOF MATERIAL DISCHARGE MUFFLER

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