Air conditioner indoor unit cs-e10jd3ea; cs-e15jd3ea; cs-e18jd3ea; cs-e21jd3ea outdoor unit single split outdoor unit cu-e10hbea; cu-e15hbea; cu-e18hbea; cu-e21hbea multi split outdoor unit cu-2e15gbe; cu-2e18cbpg; cu-3e18ebe; cu-3e18jbe; cu-3e23cbpg; c (12 pages)
CS-E24DKE CU-E24DKE 2 Functions 2.1. Remote Control OFF/ON FAN SPEED Operation OFF / ON Indoor Fan Speed Selection • • Medium- MODE • Medium Operation Mode Selection • Medium+ • High • Automatic Operation • Automatic Fan Speed AUTO •...
CS-E24DKE CU-E24DKE 2.2. Indoor Unit Automatic Operation Switch Four Operation Modes • Press for < 5s to run Automatic Operation. • Automatic, Heating, Cooling and Soft Dry (Used when the remote control cannot be used.) Operation. • Press continuously for 5s and < 8s to run Forced Cooling Operation.
Page 5
CS-E24DKE CU-E24DKE Breakdown Self Diagnosis Function Low Pressure Control (Gas Leakeage Detection) Indoor Power Relay Control Anti-Dew Formation Control Anti Freezing Control Anti-Cold Draft Control Hot Start Intake Air Temperature Control High Pressure Control Deodorizing Control Deice Operation...
CS-E24DKE CU-E24DKE 2.3. Outdoor Unit Time Delay Safety Control Low Operation Frequency Protection Control 30 seconds Forced Operation Mininum Operation Frequency Protection Control Overload Protection Control Outdoor Air Temperature Control Total Running Current Control Standby Control Compressor Overheating Prevention Control...
Page 8
CS-E24DKE CU-E24DKE Unit CS-E24DKE CU-E24DKE Piping Connection Port inch G ; Half Union 5/8” G ; 3-way valve 5/8” (Flare piping) inch L ; Half Union 1/4” L ; 2-way valve 1/4” Pipe Size inch G (gas side) ; 5/8”...
CS-E24DKE CU-E24DKE 8 Operation Details 8.1. Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
Page 15
CS-E24DKE CU-E24DKE Table (b): Outdoor Air Temperature Shifting Mode: Outdoor Temperature, X (°C): Temperature Shift (°C) Manual Operation Auto Operation Cooling/Soft Dry 1.50 2.00 1.25 1.25 1.25 1.25 1.75 1.75 Heating -2.25 -1.50 -1.75 -1.00 -0.75 0.00 0.25 0.25 1.25 1.00...
CS-E24DKE CU-E24DKE 8.1.4. Soft Dry Operation 8.1.4.1. Thermostat control • Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -2.5°C. • Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point.
CS-E24DKE CU-E24DKE Values of T1, T2, and T3 depend on remote control setting temperature, as shown in below table. After the adjustment of T1, T2 and T3 values, the operation mode for that particular environment and remote control setting is judged and performed, based on the above operation mode chart, every 30 minutes.
Page 19
CS-E24DKE CU-E24DKE B. Indoor Fan Control i. Indoor fan control operation outline 1. Cooling / Dry 2. Heating...
Page 20
CS-E24DKE CU-E24DKE ii. Auto Fan Speed 1. Cooling 2. Heating Note: a. UP: • If move from Lo, the fan speed will be shifted to Maximum 1520 rpm (E24DK). • If move from Maximum, the fan speed no change. • In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm (E24DK).
Page 21
CS-E24DKE CU-E24DKE iii. Max Capacity Condition a) During Cooling operation, if all to the following condition is fulfilled, the indoor fan speed is set to Shi. 1. Indoor intake temperature 24°C. 2. Operation frequency 64 Hz (E24DK) & above. 3. Remote Control setting temperature 16°C.
CS-E24DKE CU-E24DKE D. Deodorizing Control i. Control condition Control at cooling/dry operation and auto fan speed. No Deodorizing Control is performed during ON timer standby operation and during Anti-freezing control prevention. ii. Operation The odor status is arranged as below and it is shifted as follow.
CS-E24DKE CU-E24DKE Basic Rotation Speed 8.1.9. 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).
Page 24
CS-E24DKE CU-E24DKE 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.
Page 25
CS-E24DKE CU-E24DKE 8.1.10. 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.
CS-E24DKE CU-E24DKE 8.1.10.2. 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.
CS-E24DKE CU-E24DKE 8.1.11. 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 8.1.12. Delay ON Timer Control Delay 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.
CS-E24DKE CU-E24DKE 8.1.14. 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.
CS-E24DKE CU-E24DKE 8.1.17. Indoor Power Relay Control Power relay will turn on during operation or in progress of stopping operation. Although operation stops, the power relay continues on for three minutes. However, during instantaneous power failure (< 0.5s), power relay will turn off. Then, it will turn on 2 minutes after power recover and the unit will operate as previous operation condition.
CS-E24DKE CU-E24DKE without ionizer operation. c. Timer during ionizer operation Refer to case study in next page for detail. 8.1.18.1. Ionizer Problem Detection Control i. Purpose To inform user of ionizer problems and detection. ii. Two types of problem detection control:...
CS-E24DKE CU-E24DKE 8.2. Protection Control Features 8.2.1. Protection Control For All Operations 8.2.1.1. Time Delay Safety Control 1. The compressor will not start for three minutes after stop of operation. 2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition.
Page 32
CS-E24DKE CU-E24DKE 8.2.1.4. IPM (Power transistor) Prevention Control A. Overheating Prevention Control 1. When the IPM temperature rises to 110°C, compressor operation will stop immediately. 2. Compressor operation restarts after three minutes the temperature decreases to 95°C. B. DC Peak Current Control 1.
Page 33
CS-E24DKE CU-E24DKE 8.2.1.7. CT Disconnection Detection 1. Control Starting Condition a. Total Current is below 0.74 ~ 0.94 Amp. b. Operating Frequency is 20 Hz and above. c. Continuously for 20s. 2. Control Contents a. Abnormal signal transmitted to indoor unit after 3 minutes outdoor power is supplied. (Indoor unit stop) 3.
CS-E24DKE CU-E24DKE 8.2.2. Protection Control For Cooling & Soft Dry Operation 8.2.2.1. Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. 8.2.2.2. Cooling Overload Control i. Pipe temperature limitation/restriction •...
Page 35
CS-E24DKE CU-E24DKE 8.2.2.3. Anti-Freezing Control 1. When indoor heat exchanger temperature is lower than 2°C continuously for six minutes, compressor will stop operating. 2. Compressor will resume its operation three minutes after the indoor heat exchanger is higher than 10°C.
CS-E24DKE CU-E24DKE * If the outdoor temperature < 30°C Me & above (include auto air flow) T < 30 min 30 min T < 90 min 90 min T < 420 min T < 30 min 30 min T < 90 min 90 min T <...
Page 37
CS-E24DKE CU-E24DKE 2. Auto Fan Speed Note: a. UP: • If move from Lo, the fan speed will be shifted to Maximum 1300 rpm (E24DK). • If move from Maximum, the fan speed no change. • In up zone, 10 rpm is added for every 10s until Maximum 1300 rpm (E24DK).
Page 38
CS-E24DKE CU-E24DKE 8.2.3.3. Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the below figures. This control will begin one minute after the compressor starts. 8.2.3.4. Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown in below figures.
CS-E24DKE CU-E24DKE 8.2.3.6. Deice Control A. Deice operation (Normal Deice Operation) 1. Detection methods Outdoor heat exchanger temperature sensor, timer. 2. Deice operation time chart Notes • During deice operation, as relationship for outdoor piping temperature and time T5, the priority given to the condition which is first fulfilled and shift to the next mode.
Page 40
CS-E24DKE CU-E24DKE 3. Explanation of operation 1) At the deice starting signal, the compressor frequency is set to the value as previously mentioned. 2) At 120 sec. after deice starting signal generated, 4 way valve OFF and at the same time outdoor fan is OFF, indoor fan is OFF, compressor frequency is set to the previously mentioned value.
CS-E24DKE CU-E24DKE 9 Operating Instructions Thank you for purchasing Panasonic Air Conditioner SAFETY PRECAUTIONS I Definition To prevent personal injury, injury to others and property Installation Precautions Installation Precautions damage, the following instructions must be Warning followed. Do not install, remove and reinstall the unit by yourself.
Page 42
CS-E24DKE CU-E24DKE Note: The illustrations in this manual are for explanation purposes only and may differ from the actual unit. It is subjected to change without notice for future improvement. PRODUCT OVERVIEW I About Remote Control Preparation Air intake I ndoor Unit...
CS-E24DKE CU-E24DKE HOW TO OPERATE I Operation Details Auto, Heat, Cool, Dr y Auto, Heat, Cool, Dr y AUTO - Automatic Operation • The unit will automatically select the operation mode according to the setting, outdoor and room temperature. During operation mode selection, power indicator blinks.
CS-E24DKE CU-E24DKE HOW TO OPERATE I Operations Details Powerful, Powerful, Quiet, Quiet, Ion, Fan Speed, Ion, Fan Speed, POWERFUL • To achieve setting temperature Air Swing Air Swing quickly. QUIET • To provide a quiet environment. • To provide fresh air effect by...
Page 45
CS-E24DKE CU-E24DKE HOW TO OPERATE I Operation Details Timer Timer TIMER • Use the ON timer to turn on the air conditioner at the desired time. This will give you a cooling or warming environment, e.g. when you return from work or wake up.
CS-E24DKE CU-E24DKE CARE & CLEANING I Washing Instructions • Do not use benzene, thinner or Switch off the power supply Switch off the power supply scouring powder. before cleaning before cleaning • Use soaps or neutral household ≃ detergent ( pH7) only.
CS-E24DKE CU-E24DKE 10 Installation And Servicing Air Conditioner Using R410A 10.1. Outline 10.1.1. About R410A Refrigerant 1. Converting air conditioners to R410A Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a destructive danger to the ozone layer in the earth´s upper stratosphere (20 to 40 km above the earth), measures have been taken around the world to prevent this destruction.
CS-E24DKE CU-E24DKE d. R410A refrigerating machine oil Conventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for R22 refrigerating machine oil. Because of the poor compatibility between R410A and conventional oils like mineral oil, however, there is a tendency for the refrigerating machine oil to collect in the refrigerating cycle.
CS-E24DKE CU-E24DKE 10.2.2. R410A Tools 1. Copper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type)) • This gauge makes it easy to set the clearance for the copper tube to 1.0-1.5 mm from the clamp bar of the flaring tool.
Page 50
CS-E24DKE CU-E24DKE 5. Charging hose • The pressure resistance of the charging hose has been raised to match the higher pressure of R410A. The hose material has also been changed to suit HFC use, and the size of the fitting has been changed to match the manifold ports.
Page 51
CS-E24DKE CU-E24DKE 8. Electronic scale for refrigerant charging • Because of the high pressure and fast vaporizing speed of R410A, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is done using the charging cylinder method, causing bubbles to form in the measurement scale glass and making it difficult to see the reading.
CS-E24DKE CU-E24DKE 10.3. Refrigerant Piping Work 10.3.1. Piping Materials It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not use pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog the expansion valves or capillaries.
CS-E24DKE CU-E24DKE b. Copper pipes Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily distinguished from other piping materials, to prevent mistaken use.
CS-E24DKE CU-E24DKE 10.4.2. Transferring (Using New Refrigerant Piping) 1. Removing the unit a. Collecting the refrigerant into the outdoor unit by pumping down The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the temperature of the room is low.
CS-E24DKE CU-E24DKE 10.4.5. Recharging Refrigerant During Servicing When recharging is necessary, insert the specified amount of new refrigerant in accordance with the following procedure. 1. Connect the charging hose to the service port of the outdoor unit. 2. Connect the charging hose to the vacuum pump adaptor. At this time, fully open the 2-way valve and 3-way valve.
Page 57
CS-E24DKE CU-E24DKE 10.4.6. Brazing As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (N ) flow.
Page 59
CS-E24DKE CU-E24DKE CAUTION 1. This 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.
Page 60
CS-E24DKE CU-E24DKE Attached accessories Indoor/Outdoor Unit Installation Diagram Applicable piping kit CZ-52F5, 7, 10BP (E24DK) 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.
CS-E24DKE CU-E24DKE 11.2. Indoor Unit 11.2.1. SELECT THE BEST LOCATION 11.2.3. TO DRILL A HOLE IN THE WALL (Refer to “Select the best location” AND INSTALL A SLEEVE OF section) PIPING 1. Insert the piping sleeve to the hole. 11.2.2. HOW TO FIX INSTALLATION 2.
Page 62
CS-E24DKE CU-E24DKE 3. For the embedded piping (This can be used for left rear piping & left bottom piping also.)
Page 63
CS-E24DKE CU-E24DKE 11.2.5. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × 2.5 mm flexible cord, type designation 245 IEC 57 or heavier cord.
Page 64
CS-E24DKE CU-E24DKE 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.
CS-E24DKE CU-E24DKE 11.3. Outdoor Unit 11.3.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section) 11.3.2. 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.
CS-E24DKE CU-E24DKE 11.3.4. EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION) 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 and High side of a charging set and the service port of the 3-way valve.
CS-E24DKE CU-E24DKE 11.3.6. PIPE INSULATION 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 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.
CS-E24DKE CU-E24DKE 12 Servicing Information 12.1. Distinction Of Lead Free (PbF) Printed Circuit Board • Printed circuit boards (manufactured) using lead free solder will have a PbF stamp on the Printed Circuit board. CAUTION • Pb free solder has a higher melting point than standard solder; typically the melting point is 50 - 70°F (30 - 40°C) higher.
Page 69
CS-E24DKE CU-E24DKE Troubleshooting Air Conditioner 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.
CS-E24DKE CU-E24DKE 1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current during operation during operation...
CS-E24DKE CU-E24DKE 12.4. Remote Control • Remote Control Reset When the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work. If this happen, remove the cover of the remote control and push the reset point once to clear the memory data.
CS-E24DKE CU-E24DKE 12.5. Indoor Electronic Controllers Removal Procedures 1. The Electronic Controller, a Signal Receiver and an Indicator (Fig. 3) can be seen by the below steps: • Remove the 3 caps and 3 screws at the bottom of the Front Grille.
CS-E24DKE CU-E24DKE 12.6. Cross Flow Fan and Indoor Fan Motor Removal Procedures 1. In order to remove the Cross Flow Fan and Indoor Fan Motor, Control Board need to be taken out by releasing all the connectors as indicated below.
Page 75
CS-E24DKE CU-E24DKE 7. Push up the Evaporator and pull out the Cross Flow Fan from shaft. By then, Fan Motor can be taken out. (Fig. 9). REMINDER - To reinstall the Fan Motor, put it back in place, adjust the position of the Fan Motor’s leadwire appropriately as shown in the Fig.
CS-E24DKE CU-E24DKE 12.7. Outdoor Electronic Controller Removal Procedure 1. Remove the top panel and front panel • Be save 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.
CS-E24DKE CU-E24DKE 14 Exploded View (Indoor Unit) 14.1. CS-E24DKE 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.
CS-E24DKE CU-E24DKE 15 Replacement Parts List (Indoor Unit) 15.1. CS-E24DKE REF. NO. PART NAME & DESCRIPTION QTY. CS-E24DKE REMARKS CHASSY COMPLETE CWD50C1382 FAN MOTOR CWA981056 CROSS FLOW FAN COMPLETE CWH02C1010 SCREW - CROSS FLOW FAN CWH4580304 BEARING ASS’Y CWH64K007 EVAPORATOR...
CS-E24DKE CU-E24DKE 16 Exploded View (Outdoor Unit) 16.1. CU-E24DKE 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.
CS-E24DKE CU-E24DKE 17 Replacement Parts List (Outdoor Unit) 17.1. CU-E24DKE REF NO. DESCRIPTION & NAME QTY. CU-E24DKE REMARKS CHASSY ASSY CWD50K2098 ANTI-VIBRATION BUSHING CWH501061 COMPRESSOR C-7RVN153H0V NUT-COMPRESSOR MOUNT CWH56000 SOUND PROOF MATERIAL CWG302215 FAN MOTOR BRACKET CWD541067 FAN MOTOR CWA981111...
Page 90
CS-E24DKE CU-E24DKE How to use electronic circuit diagram TIMER TABLE <INDOOR> Test mode Name Time (When test point Short-circuited) 4 way valve abnormality 4 min. 24 sec. Outdoor air temp. for Hz No. decision 30 min. 0 sec. Anti-dew formation control 20 min.