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
13.1. Protection Control For All Operations -------------13.2. Protection Control For Cooling & Soft Dry Operation -------------------------------------------------13.3. Protection Control For Heating Operation--------Servicing Mode-------------------------------------------------14.1. Auto OFF/ON Button ----------------------------------14.2. Select Remote Control Transmission Code------14.3. Remote Control Button --------------------------------Troubleshooting Guide --------------------------------------15.1. Refrigeration Cycle System --------------------------15.2. Breakdown Self Diagnosis Function ---------------15.3. Error Codes Table --------------------------------------Disassembly and Assembly Instructions -------------16.1. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures-----16.2. Outdoor Electronic Controller Removal Procedure-------------------------------------------------Technical Data --------------------------------------------------17.1. Operation Characteristics ----------------------------17.2. Sensible Capacity Chart ------------------------------Exploded View and Replacement Parts List----------18.1. Indoor Unit------------------------------------------------18.2. 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)

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

12.4. Airflow Direction

1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes). 2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

12.4.1. Vertical Airflow

Operation Mode Heating Airflow Direction 1 Auto with Heat Exchanger Temperature A B C D Manual Cooling and Ion Soft Dry Auto Manual Auto Manual Upward fix Downward fix Upward fix Downward fix 2 Vane Angle ( ) 10 ~ 10 ~ 4 5
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 depands on the indoor heat exchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, the vane will shift to close position.
2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position.
12.4.2. Horizontal Airflow
The horizontal airflow direction louvers can be adjusted manually by hand.
12.5. Quiet operation (Cooling Mode/Cooling area of Dry Mode)
A. Purpose To provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condition When Quiet button at remote control is pressed. Quiet LED illuminates. 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. 2. When quiet operation is stopped, operation is shifted to normal operation with previous setting. 3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. 4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode. 5. During quiet operation, if timer on activates, quiet operation maintains. 6. After off, when on back, quiet operation is not memorised. C. Control contents 1. Fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB (some models more than 3dB). 2. Fan speed for quiet operation is -1 step from setting fan speed.

Note: If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling. If Timer LED is blinking, there is an abnormality operation occurs. If e-ion LED is blinking, there is an abnormality of e-ion occurs. If PATROL LED is blinking, there is a gas sensor error detection.

12.11. Patrol Operation

A. Purpose To monitor air dirtiness level by using gas sensor and activates e-ion operation whenever air is dirty. B. Control Condition a. Patrol operation start condition When the unit operation is started with OFF/ON button. When the unit stops, Patrol button is pressed, Patrol individual operation will start. During cooling only operation, Patrol button is pressed. b. Patrol operation stop condition When any of the following condition is fulfilled: When OFF/ON button is pressed. During any operation with Patrol, Patrol button is pressed again. When e-ion button is pressed. When OFF Timer activates.
c. Patrol operation disable To disable the Patrol Operation during unit start (default) with OFF/ON button, press Patrol button and hold for 5 seconds, then release. To disable the Patrol Operation, press Patrol button and hold for 15 seconds, then release. C. Control Content a. Gas 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 level 2. After that, gas 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. There are 3 air dirtiness levels, based on the Air Dirtiness Value: - Air Dirtiness level 0: Clean - Air Dirtiness level 1: Moderate - Air Dirtiness level 2: Contaminated
Dirtiness level sensitivity adjustment It is possible to change the gas sensor sensitivity, where the Threshold value (G1 ~ G4) will be shifted accordingly: 1. Press and release SET buttton. 2. Press Timer increment / Timer decrement button to select sensitivity. (Low Standard (Default) High) 3. Confirm setting by pressing Timer Set button. LCD returned to original display after 2 seconds. 4. LCD returned to original display if remote control does not operate for 30 seconds. b. e-ion Control When dirtiness level is 1 or 2, e-ion operation starts. If dirtiness level improves from level 2 to level 1, the unit carries out level change after 60 seconds. When dirtiness level returns to level 0 continuously for 10 minutes or more, e-ion operation stops. Dirtiness Level Shift For Auto Fan Speed, the fan speed increased based on dirtiness level:
c. Indoor Fan Control During any operation mode combines with Patrol operation, fan speed follows respective operation mode. During Patrol individual operation if e-ion starts, only Auto Fan Speed and no Powerful operation is allowed. Even if Fan Speed button is pressed, no signal is sent to air conditioner, and no change on LCD display. During Patrol individual operation if e-ion stops, Indoor Fan stop operation. d. Airflow direction (Horizontal, Vertical) Control During any operation mode combines with Patrol operation, airflow direction follows respective operation mode. During Patrol individual operation if e-ion starts, 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. During Patrol individual operation if e-ion stops, Airflow direction louver closed.

g. Error Detection Control When e-ion indicator blink, it indicates error listed below: i. e-ion Air Purifying system main connector to PCB is open: Judgement Method During e-ion operation (include during Patrol operation), e-ion Air Purifying system main connector to PCB is opened. Troubleshooting Methods Connect the connector or stop operation (include during Patrol operation) to cancel the blinking. ii. Abnormal Discharge Judgement Method During e-ion operation, when feedback voltage is -Lo (at microcontroller) is detected, it is judged abnormal discharge and stops power supplies to the e-ion Air Purifying system. The unit retries after 30 minutes and repeat for 24 times. (not applicable for e-ion Check Mode) Troubleshooting Method Press e-ion button or OFF/ON button to stop the operation and check the e-ion Air Purifying system main connector to PCB. After that, press e-ion button again to confirm the e-ion indicator not blinking. The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.
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
4. The first 30 minutes of cooling operation, (A) will be applied.
13.1.4. IPM (Power transistor) Prevention Control
A. Overheating Prevention Control 1. When the IPM temperature rises to 100 C, compressor operation will stop immediately. 2. Compressor operation restarts after 3 minutes the temperature decreases to 95 C. B. DC Peak Current Control 1. When electric current to IPM exceeds set value of 18.5 A, the compressor will stop operate. Then, operation will restart after 3 minutes. 2. If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will restart after 2 minutes. 3. If the set value exceeded again within 30 seconds after the compressor starts, the operation will restart after 1 minute. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off.
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. If compressor discharge temperature exceeds 110 C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking. (F97 is indicated.)
13.1.6. Low Pressure Prevention Control (Gas Leakage Detection)
a. Control start conditions For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A. During Cooling and Soft Dry operations: Indoor suction temperature - indoor piping temperature is below 4 C. During Heating operations : Indoor piping temperature - indoor suction is under 5 C. b. Control contents Compressor stops (and restart after 3 minutes). If the conditions above happen 2 times within 20 minutes, the unit will: - Stop operation - Timer LED blinks and F91 indicated.
13.1.7. Compressor Tank Temperature Rise Protection Control
a. Control start conditions For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A. During Cooling and Soft Dry operations: Indoor suction temperature - indoor piping temperature is below 4 C. Indoor temperature and outdoor temperature is 305 C. Remote Control setting 16 C and Hi Fan Speed. During Heating operations: Indoor piping temperature - indoor suction is under 5 C. Indoor temperature and outdoor temperature is C. Remote control setting 30 C and Hi Fan Speed. b. Control contents Compressor stops (and restart after 3 minutes) If the conditions above happen 2 times within 20 minutes, the unit will: - Stop operation - Timer LED blinks and F91 indicated

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:

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

H33 H38 H58 H98 H99 F11 F90 F91 F93 F95 F96
Continue for 6 hours 4 times occurance within 30 minutes 4 times occurance within 20 minutes 2 times occurance within 20 minutes 4 times occurance within 20 minutes 4 times occurance within 20 minutes

F97 F98 F99

4 times occurance within 20 minutes 3 times occurance within 20 minutes 7 times occurance continuously
Note: O - Frequency measured and fan speed fixed. The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until beep sound heard following by pressing the CHECK button at Remote Control. Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using Remote Control or Auto Switch at indoor unit. However, the Remote Control signal receiving sound is changed from one beep to four beep sounds.
16 Disassembly and Assembly Instructions
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.
16.1. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures
16.1.1. To remove front grille
16.1.2. To remove power electronic controller
16.1.3. To remove discharge grille
16.1.4. To remove control board
16.1.5. To remove cross flow fan and indoor fan motor
16.2. Outdoor Electronic Controller Removal Procedure
Caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 3 screws of the Top Panel. 5. Remove the Control Board as follows:

Fig. 1

2. Remove the 6 screws of the Front Panel.

Fig. 4

Fig. 2
3. Remove the screw of the Terminal Board Cover. 4. Remove the Top Cover of the Control Board by 4 hooks.

Fig. 5

Fig. 6

Fig. 3

17 Technical Data
17.1. Operation Characteristics
17.1.1. CS-CE7HKEW CU-CE7HKE
17.1.2. CS-CE9HKEW CU-CE9HKE
17.1.3. CS-CE12HKEW CU-CE12HKE
17.2. Sensible Capacity Chart

CS-CE7HKEW CU-CE7HKE

230V Indoor wet bulb temp. 17.0 C 19.0 C 19.5 C 22.0 C 2.23 2.43 1.61 1.67 0.44 0.TC 2.03 SHC 1.54 IP 0.43 TC 1.90 2.05 2.09 2.27 1.55 1.SHC 1.48 IP 0.46 0.47 0.47 0.48 1.94 2.12 1.49 1.55 0.50 0.51 1.77 1.92 1.42 1.48 0.54 0.55 TC 1.77 Outdoor Temp. ( C) 40 SHC 1.42 IP 0.50 TC 1.SHC 1.35 IP 0.53
230V Indoor wet bulb temp. 17.0 C 19.0 C 19.5 C 22.0 C 2.83 3.09 2.05 2.12 0.55 0.TC 2.58 SHC 1.96 IP 0.54 TC 2.41 2.60 2.65 2.88 1.97 2.SHC 1.88 IP 0.58 0.59 0.59 0.60 2.46 2.68 1.89 1.97 0.63 0.64 2.24 2.44 1.80 1.88 0.68 0.70 TC 2.24 Outdoor Temp. ( C) 40 SHC 1.80 IP 0.62 TC 2.SHC 1.71 IP 0.67
230V Indoor wet bulb temp. 17.0 C 19.0 C 19.5 C 22.0 C 3.81 4.15 2.76 2.86 0.86 0.TC 3.47 SHC 2.63 IP 0.84 TC 3.24 3.50 3.56 3.88 2.65 2.SHC 2.52 IP 0.91 0.92 0.92 0.94 3.31 3.61 2.55 2.65 0.99 1.01 3.01 3.28 2.43 2.53 1.07 1.08 TC 3.02 Outdoor Temp. ( C) 40 SHC 2.43 IP 0.97 TC 2.SHC 2.30 IP 1.05
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)

QTY. 1 1

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

QTY. 1

CU-CE7HKE CWD50K2073 CWG302314 CWD541030 CWH551217 CWA951536 CWH55252J CWH03K1010 CWH56053J 5RS092XCD01 CWA341044 CWH50077 CWH56000J CWB32C2485 CWT01C4051 CWH351023 CWB021301 CWB011374 G0C193J00003 CWH171039A CWH7080300J CWH151172 CWG302316 CWG302317 CWA50C2205 CWH131264 CWA73C3147R CWA28K1110J CWE04C1116 CWA50C2391 CWE041248A CWE06C1039 CWE031014A CWH131301 CWH13C1064 CWE161010 CWB001037J CWA43C2143J CWD041111A CWH5850080 CWB81012 CWH321023 CWG302315 CWB121010

CU-CE9HKE

CU-CE12HKE

REMARKS

CWA951553

CWA951542

5RS102XBC01
CWB32C2446 CWT01C4201 CWT01C4202 O CWB011367 G0C193J00004 O O
O CWA73C3148R CWA73C3149R O O O CWE06C1136
[PHAAM] Printed in Malaysia SFTK0801-00