Order No: MAC0510072C2

Air Conditioner

CS-E9EKEB CU-E9EKEB CS-E12EKEB CU-E12EKEB

CONTENTS

1 Safety Precautions 2 Specification 2.1. CS-E9EKEB CU-E9EKEB 2.2. CS-E12EKEB CU-E12EKEB 3 Features 3.1. Super Air Purifying System with SUPER alleru-buster 3.2. Ion Freshener 3.3. Super Quiet 3.4. Powerful Heating And Top-class Energy Effciency 4 Location of controls and components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3. Remote Control 5 Dimension 5.1. Indoor Unit & Remote Control 5.2. Outdoor Unit 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law. 6 Refrigeration Cycle Diagram 7 Block Diagram 8 Wiring Diagram 8.1. CS-C9EKEB CS-C12EKEB 8.2. CU-C9EKEB CU-C12EKEB 9 Printed Circuit Board 9.1. Indoor Unit 9.2. Outdoor Unit 10 Simplified Electronic Circuit Diagram 10.1. Indoor Unit 10.2. Outdoor Unit 11 Installation Instructions 11.1. Select The Best Location 11.2. Indoor Unit 11.3. Outdoor Unit
CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB
12 Operation And Control 12.1. Basic Function 12.2. Protection Control 13 Servicing Mode 13.1. Auto Switch Operation 13.2. Indicator Panel 14 Troubleshooting Guide 14.1. Refrigeration Cycle System 14.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current 14.3. Breakdown Self Diagnosis Function 14.4. Error Codes Table 15 Disassembly and Assembly Instructions
15.1. Indoor Electronic Controller and Control Board 15.2. Indoor Cross Flow Fan and Fan Motor 15.3. Outdoor Propeller Fan and Fan Motor 16 Technical Data 16.1. CS-E9EKEB CU-E9EKEB 16.2. CS-E12EKEB CU-E12EKEB 16.3. Sensible Capacity Chart 17 Exploded View And Replacement Parts List 17.1. CS-E9EKEB CS-E12EKEB
17.2. CS-E9EKEB CS-E12EKEB 17.3. CU-E9EKEB CU-E12EKEB 17.4. CU-E9EKEB CU-E12EKEB

1 Safety Precautions

Read the following SAFETY PRECAUTIONS carefully before perform any servicing. Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
The items to be followed are classified by the symbols:
This symbol denotes item that is PROHIBITED from doing.
Carry out test running to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
1. Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water leakage, electrical shock or fire. 2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire. 3. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock. 4. Install at a strong and firm location which is able to withstand the sets weight. If the strength is not enough or installation is not properly done, the set will drop and cause injury. 5. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire. 6. Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection. 7. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause heat-up at connection point of terminal, fire or electrical shock. 8. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and injury. 9. Thickness of copper pipes used must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.

10. It is desirable that the amount of residual oil is less than 40 mg/10 m.
11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.
1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect. 2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire.
3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture. 4. Pb free solder has a higher melting point than standard solder; typically the melting point is 50 - 70F (30 - 40C) higher. Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 20F (370 10C). Pb free solder will tend to splash when heated too high (about 1100F/600C).
1. Selection of the installation location. Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance. 2. Power supply connection to the air conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following methods. Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries, permanent connection of this room air conditioner to the power supply is prohibited. 1. Power supply connection to the receptacle using a power plug. Use an approved power plug with earth pin for the connection to the socket. 2. Power supply connection to a circuit breaker for the permanent connection. Use an approved circuit breaker for the permanent connection. It must be a double pole switch with a minimum 3.5 mm contact gap. 3. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may cause frostbite. 4. Installation work. It may need two people to carry out the installation work. 5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

2 Specification

2.1. CS-E9EKEB CU-E9EKEB
Unit Performance Test Condition Cooling Capacity kW kcal/h CS-E9EKEB EUROVENT 2.60 (0.60 - 3.00) 2,240 (520 - 2,580) CU-E9EKEB

Heating Capacity

kW kcal/h
3.60 (0.60 - 5.40) 3,100 (520 - 4,640)

Moisture Removal

l/h Pint/h

1.6 3.4

Power Source (Phase, Voltage, Cycle)

Single 230 50

Airflow Method

OUTLET

SIDE VIEW

TOP VIEW

INTAKE

Air Volume

Lo Me Hi SHi
m3/min (cfm) m3/min (cfm) m3/min (cfm) m3/min (cfm)
Cooling; 6.2 (220) Heating; 6.6 (230) Cooling; 7.9 (280) Heating; 8.6 (300) Cooling; 9.6 (340) Heating; 10.5 (370) Cooling; 9.9 (350) Heating; 10.8 (380) Cooling; High 39, Low 26 Heating; High 40, Low 27

Cooling; 29.8 (1,050)

dB (A) Noise Level Power level dB

Cooling; 46 Heating; 47

Cooling; High 50 Heating; High 51
Cooling; High 59 Heating; High 60

Electrical Data

Cooling; 590 (120 - 750) Heating; 845 (115 - 1,360)

Running Current

Cooling; 2.9 Heating; 4.0 Cooling; 4.41 (3.80) Heating; 4.26 (3.67) 4.0 G ; Half Union 3/8 G ; 3-way valve 3/8 L ; Half Union 1/4 L ; 2-way valve 1/4 G (gas side) ; 3/8 G (gas side) ; 3/8 L (liquid side) ; 1/4 L (liquid side) ; 1/0.65
EER COP Starting Current Piping Connection Port (Flare piping) Pipe Size (Flare piping) Drain Inner diameter Hose Length
W/W (kcal/hw) W/W (kcal/hw) A inch inch inch inch mm m
Power Cord Length Number of core-wire Dimensions Height Width Depth Net Weight Compressor Motor Rated Fan Motor Motor
Unit m inch (mm) inch (mm) inch (mm) lb (kg) Type Type Output Type Material Type Input Rate Output Lo (Cool/Heat) Me (Cool/Heat) Hi (Cool/Heat) SHi (Cool/Heat)

Fan Speed

W W rpm rpm rpm rpm

Heat Exchanger

Description Tube material Fin material Fin Type Row / Stage FPI Size (W H L)
Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device Air Filter

(cm3) g (oz)

Material Style
CS-E9EKEB CU-E9EKEB 1.8 (1.5mm2) 11 - 1/32 (280) 21 - 1/4 (540) 31 - 15/32 (799) 30 - 23/32 (780) 7 - 7/32 (183) 11 - 3/8 (289) 20 (9.0) 77 (35) Hermetic Motor Brushless (4-pole) 750 Cross-flow Fan Propeller Fan ASG20k1 P.P Transistor (8-poles) Induction (8-poles) 44.3 61.40 820/880 1,050/1,140 1,280/1,400 800/790 1,320/1,440 Evaporator Condenser Copper Copper Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin (Plate fin configuration, forced draft) 2 / / 315 25.4 718.36.4 689.8 Capillary Tube RB68A (400) 930 (32.8) Electronic Control Electronic Control P.P. Honeycomb

Specifications are subjected to change without prior notice for further improvement.

CS-E12EKEB CU-E12EKEB

Unit CS-E12EKEB EUROVENT kW kcal/h 3.50 (0.60 - 4.00) 3,010 (520 - 3,440) CU-E12EKEB
Performance Test Condition Cooling Capacity
4.80 (0.60 - 6.60) 4,130 (520 - 5,680)

2.0 4.2

Cooling; 6.9 (240) Heating; 8.1 (290) Cooling; 8.8 (310) Heating; 9.7 (340) Cooling; 10.7 (380) Heating; 11.2 (400) Cooling; 11.0 (390) Heating; 11.6 (410) Cooling; High 42, Low 29 Heating; High 42, Low 33

Cooling; 31.0 (1,090)

Cooling; 48 Heating; 50
Cooling; High 53 Heating; High 53
Cooling; High 61 Heating; High 63
Cooling; 920 (120 - 1,180) Heating; 1,260 (115 - 1,850)
Cooling; 4.3 Heating; 5.8 Cooling; 3.80 (3.27) Heating; 3.81 (3.28) 5.8 G ; Half Union 1/2 G ; 3-way valve 1/2 L ; Half Union 1/4 L ; 2-way valve 1/4 G (gas side) ; 1/2 G (gas side) ; 1/2 L (liquid side) ; 1/4 L (liquid side) ; 1/0.65 1.8 (1.5mm2)
EER COP Starting Current Piping Connection Port (Flare piping) Pipe Size (Flare piping) Drain Inner diameter Hose Length Power Cord Length Number of core-wire

Dimensions

Height Width Depth Type Type Output Type Material Type Input Rate Output Lo (Cool/Heat) Me (Cool/Heat) Hi (Cool/Heat) SHi (Cool/Heat)
Net Weight Compressor Motor Rated Fan Motor Motor
Unit inch (mm) inch (mm) inch (mm) lb (kg)
Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device Air Filter Material Style
CS-E12EKEB CU-E12EKEB 11 - 1/32 (280) 21 - 1/4 (540) 31 - 15/32 (799) 30 - 23/32 (780) 7 - 7/32 (183) 11 - 3/8 (289) 20 (9.0) 79 (36) Hermetic Motor Brushless (4-pole) 750 Cross-flow Fan Propeller Fan ASG20k1 P.P Transistor (8-poles) Induction (8-poles) 44.3 65.40 910/1,080 1,165/1,290 1,420/1,/ 820 1,460/1,540 Evaporator Condenser Copper Copper Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin (Plate fin configuration, forced draft) 2 / / 315 25.4 718.36.4 689.8 Capillary Tube RB68A (400) 970 (34.2) Electronic Control Electronic Control P.P. Honeycomb

3 Features

3.1.1.
Super Air Purifying System with SUPER alleru-buster
Supersonic Air Purifying System

Ion Freshener

Around 20,000 negative ions/cc are generated to freshen the room. Its like being next to a waterfall or in a forest.
The Supersonic Air Purifying System incorporated in the indoor unit generates supersonic waves. The system works in combination with the filter to collects dust and dirt in the air for faster, more efficient air purification.

Super Quiet

The indoor unit operates at a whisper-quiet 26dB. You can also press the Quiet Mode button to lower the operating noise 3 dB. Weve reduced the noise of the outdoor unit, too, with the e-scroll Compressor and 2-Wing Fan. You can run the air conditioner at night and enjoy a deeper, more comfortable sleep, and without bothering your neighbours.

3.1.2.

SUPER alleru-buster filter
The SUPER alleru-buster filter combines three effects in one anti-allergen, anti-virus, anti-bacteria protection to keep room air clean and healthful.
Powerful Heating And Topclass Energy Effciency
4 Location of controls and components

4.1. Indoor Unit

Outdoor Unit

Remote Control

5 Dimension
5.1. Indoor Unit & Remote Control
6 Refrigeration Cycle Diagram

7 Block Diagram

8 Wiring Diagram
8.1. CS-C9EKEB CS-C12EKEB

CU-C9EKEB CU-C12EKEB

9 Printed Circuit Board

9.1. Indoor Unit

10 Simplified Electronic Circuit Diagram

10.1. Indoor Unit

10.2. Outdoor Unit
11 Installation Instructions
11.1. Select The Best Location
INDOOR UNIT There should not be any heat source or steam near the unit. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where consideration. noise prevention is taken into Indoor/Outdoor Unit Installation Diagram
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.
Model Piping size Rated Max. Gas Liquid Length Elevation (m) (m) 3/8 1/2 1/4 1/4 7.5 7.5 Max. Piping Length (m) Additional Refrigerant (g/m) 20 20

E9EK E12EK

This illustration is for explanation purposes only. The indoor unit will actually face a different way.

11.2. Indoor Unit

11.2.1. HOW TO FIX INSTALLATION PLATE
The mounting wall is strong and solid enough to prevent it from the vibration.
11.2.2. 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.
4. Finish by sealing the sleeve with putty or caulking compound at the final stage.
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.
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. 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.
11.2.3. 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 & left bottom piping also.)
11.2.4. CONNECT THE CABLE TO THE INDOOR UNIT
1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord. Ensure the color 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.
Secure the cable onto the control board with the holder (clamper).

11.2.5. INSTALLATION OF SUPER ALLERU-BUSTER FILTER
1. Open the front panel. 2. Remove the air filter. 3. Remove Supersonic air purifying device. 4. Open the Supersonic air purifying device frame. 5. Insert the super alleru-buster filter and close the Supersonic air purifying device frame as show in illustration at right.
11.2.6. HOW TO TAKE OUT FRONT GRILLE
Please follow the steps below to take out front grille if necessary such as when servicing. 1. Set the vertical airflow direction louvers to the horizontal position. 2. Slide down the 2 caps on the front grille as shown in the illustration below, and then remove the 2 mounting screws. 3. Pull the lower section of the front grille towards you to remove the front grille.
When reinstalling the front grille, first set the vertical airflow direction louvers to the horizontal position and then carry out above steps 2 - 3 in the reverse order.

11.3. Outdoor Unit

11.3.1. INSTALL THE OUTDOOR UNIT
After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (10 mm). 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
11.3.2. CONNECTING THE PIPING
Connecting The Piping To Indoor Unit Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers. Further tighten the flare nut with torque wrench in specified torque as stated in the table.
MODEL E9EK E12EK Piping size (Torque) Gas Liquid 3/8 (42 N.m) 1/4 (18 N.m) 1/2 (55 N.m) 1/4 (18 N.m)
Connecting The Piping To Outdoor Unit Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table. CUTTING AND FLARING THE PIPING 1. Please cut using pipe cutter and then remove the burrs. 2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3. Please make flare after inserting the flare nut onto the copper pipes.

11.3.3. EVACUATION OF THE EQUIPMENT
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.
1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor. 3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes. 4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes. Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE. 5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve. 6. Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench. 7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to OPEN using a hexagonal wrench (4 mm). 8. Mount valve caps onto the 2-way valve and the 3-way valve. Be sure to check for gas leakage. 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.
11.3.4. 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 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. Attach the control board cover back to the original position with the screw.

11.3.5. 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.
11.3.6. OUTDOOR UNIT DRAIN WATER
Water will drip from the basepan hole area during defrost function. To avoid water dripping, do not stand or place objects at this area.

12.1.2.2. Horizontal Airflow
1. Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below.
Operation Mode Heating, with heat exchanger temperature Cooling, Soft Dry and Ion A B Vane Angle () 65 ~ 65 ~ 115
2. Manual horizontal airflow direction can be set using remote control; the angles of the vane are as stated below and the positions of the vane are as Figure 2 above.
Pattern Airflow Direction Patterns at Remote Control Vane Angle () 5
12.1.3. 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. 31
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. 2. Fan speed for quiet operation is -1 step from setting fan speed.
12.1.3.1. Quiet operation (Heating)
A. Purpose To provide quiet heating 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, except fan only 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 a. Fan Speed manual 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. 2. Fan speed for quiet operation is -1 step from setting fan speed. 3. Fan Speed Auto Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger.

12.1.4. Powerful Mode Operation
When the powerful mode is selected, the internal setting temperature will shift to achieve the setting temperature quickly. (a) Cooling Operation

(b) Soft Dry Operation

(c) Heating Operation

12.1.5. ON Timer Control

ON timer can be set using remote control, the unit with timer set will start operate earlier than the setting time. This is to provide a comfortable environment when reaching the set ON time. 60 minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operation starting time. From the above judgment, the decided operation will start operate earlier than the set time as shown below.
12.1.6. OFF Timer Control
OFF timer can be set using remote control, the unit with timer set will stop operate at set time.
12.1.7. Auto Restart Control
1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes. 2. This type of control is not applicable during ON/OFF Timer setting.
12.1.8. Ionizer Operation
Purpose To provide fresh air effect to users by discharging minus ion to air. Control Condition
a. Ionizer Only Operation. 1. When air-conditioner unit is at OFF condition (standby) and ION operation button at remote control is pressed. Fan & ionizer on, ION LED illuminates, but power LED maintain off. (1 2) However, fan speed can be adjusted later by customer during this operation.
Airflow direction (Horizontal Vane) control: Follow vane direction control at cooling mode. Horizontal vane can be changed by customer during ion only operation. b. Operation Mode + Ionizer Operation. 1. Ionising Operation Start Condition When air conditioner unit is in ON condition (Heat, Cool, Dry, Auto mode) and ION operation button at remote control is pressed. Ionizer on & ION LED illuminates. (3 4) Power LED also illuminates. 2. Ionising Operation Stop Condition When one of the following condition is satisfied, ION operation stops. a. Stopped by ON/OFF switch. b. Timer OFF activates. c. ION feedback signal shows error. 3. Ionizer operation status is not memorised by micon. After OFF, when operation is ON again, air conditioner operates without ionizer operation.

12.2. Protection Control

12.2.1. Time Delay Safety Control
Compressor will not start for three minutes after stop of the operation.
12.2.2. 30 Seconds Forced Operation
Once compressor starts the operation, it will not stop its operation for 30 seconds. However, it can be stopped with the remote controller or the Auto button on the indoor unit.
12.2.3. Total Running Current Control
1. When the total running current exceeds l1, compressor operation frequency is reduced. If it reaches below l1, the operation frequency is increased. (But, up to programmed frequency.) 2. If total running current exceeds l2, compressor is stopped immediately. 3. If it happens three (3) times within 20 minutes, operation will be stopped and Timer LED blinks. (F98 is activating.)
Cooling Heating Running current l1 l2 l1 l2 CS-E9EKEB 3.7A 25.0A 5.9A 25.0A CS-E12EKEB 5.8A 25.0A 8.2A 25.0A
12.2.4. IPM (Power transistor) Protection Control (DC Peak detection)
Abnormal Current Control If inverter load current (DC peak) exceeds a rated value, compressor will be stopped immediately. When the excess occurs within 30 seconds after operation, it restarts in 1 minute and when after 30 seconds, restarts in 2 minutes. If the excess continuously occurs 7 times within 30 minutes after compressor starts, the unit will be stopped and timer LED on the indoor unit will be blinking. (F99 is to be confirmed.) IPM Overheating Prevention Control If temperature of IPM exceeds 103C, compressor will be stopped. It will restart in 2 minutes. Temperature for restarting: 90C. If the excess occurs 4 times within 30 minutes after compressor starts, the compressor will be stopped and timer LED on the indoor unit will be blinking. (F96 is to be confirmed.)
12.2.5. Compressor Overheating Prevention Control
1. If discharge pipe temperature exceeds 100C, compressor power will be limited. 2. If discharge pipe temperature exceeds 112C, compressor will be stopped. 3. If the above excess occurs 4 times per 10 minutes, timer LED will be blinking. (F97 is to be confirmed.)
12.2.6. Outdoor High Pressure Prevention Control (Cooling and Dry operations)
1. If outdoor heat exchanger temperature exceeds 63C in cooling or dry operation, compressor will be stopped. 2. Timer LED is not blinking. (F95 is memorized, then.)

QUIET Orange Quiet Mode ON Quiet Mode OFF
POWERFUL Orange Powerful Mode ON Powerful Mode OFF
ION Green Ion Mode ON Ion Mode OFF
ALLERGEN BUSTER Blue Operation ON Operation OFF
Note: If POWER LED is blinking, the possible operations 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 Ionizer, LED is blinking, there is an abnormality of Ionizer occurs.

14 Troubleshooting Guide

14.1. 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 to the right.
14.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current
Cooling Mode Condition of the air conditoner Low Pressure High Pressure Electric current during operation Low Pressure Heating Mode High Pressure Electric current during operation
Insufficient refrigerant (gas leakage)
Clogged capillary tube or Strainer
Short circuit in the indoor unit
Heat radiation deficiency of the outdoor unit

Inefficient compression

Carry on the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
14.3. Breakdown Self Diagnosis Function
Once abnormality detected during operation, the unit will immediately stop its operation (Timer LED is blinking) and maximum of three error codes (abnormality) will be saved in memory. The abnormality of the operation can be identified through the below breakdown diagnosis method: Press CHECK button at remote controller continuously for more than five seconds to turn on the diagnosis mode, H11 will be displayed at remote controller. By pressing the TMER displayed. button once, next error code will be displayed; press V button once, previous error code will be
If error code displayed matches the error code saved in unit memory (abnormality detected), beep, beep, beep. sounds will be heard for 4 seconds and Power LED will light on. Otherwise, one beep sound is heard. If CHECK button is press again or without any operation for 30 seconds, the diagnosis mode will turn off.

H30 H33 H38 H97 H98 H99 F11 F90 F91 F93 F95 F96
Continue for 5 sec. 2 times occurance within 30 minutes 4 times occurance within 30 minutes 4 times occurance within 10 minutes 2 times occurance within 20 minutes 4 times occurance within 20 minutes

F97 F98 F99
Outdoor compressor overheating protection Total running current protection Outdoor Direct Current (DC) peak detection
4 times occurance within 10 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 RESET button at remote controller. Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is changed from one beep to four beep sounds.
15 Disassembly and Assembly Instructions
Caution! When handling electronic controller, be careful of electrostatic discharge. Be sure to return the wiring to its original position. There are many high voltage components within the heat sink cover so never touch the interior during operation. Wait at least two minutes after power has been turned off.
15.1. Indoor Electronic Controller and Control Board
15.2. Indoor Cross Flow Fan and Fan Motor
15.3. Outdoor Propeller Fan and Fan Motor

16 Technical Data

16.1. CS-E9EKEB CU-E9EKEB
Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 27/19 C Remote control setting: HI fan, COOL 16 C Compressor frequency: rated cooling Voltage: 230 V
Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 20 C Remote control setting: HI fan, HEAT 30 C Compressor frequency: rated heating Voltage: 230 V
Cooling Characteristic at Different Piping Length Condition Indoor room temperature: 27/19 C Remote control setting: HI fan, COOL 16 C Compressor frequency: rated cooling Voltage: 230 V
Heating Characteristic at Different Piping Length Condition Indoor room temperature: 20 C Remote control setting: HI fan, HEAT 30 C Compressor frequency: rated heating Voltage: 230 V
16.2. CS-E12EKEB CU-E12EKEB