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Panasonic CS-E15DB4EW Service Manual

Philips air conditioner user manual
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Table of Contents
CONTENTS
CS-E15DB4EW CU-E15DBE
CS-E18DB4EW CU-E18DBE
CS-E21DB4ES CU-E21DBE
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© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0502032C8

Air Conditioner

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  Summary of Contents for Panasonic CS-E15DB4EW

  • Page 1: Table Of Contents

    CONTENTS 1 Features 2 Functions 2.1. Remote Control 2.2. Indoor Unit 2.3. Outdoor Unit 3 Product Specifications 3.1. CS-E15DB4EW CU-E15DBE 3.2. CS-E18DB4EW CU-E18DBE 3.3. CS-E21DB4ES CU-E21DBE 4 Dimensions 4.1. Indoor Unit & Remote Control CS-E15DB4EW CU-E15DBE CS-E18DB4EW CU-E18DBE CS-E21DB4ES CU-E21DBE Page 4.2.
  • Page 2: Features

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 10.3. Refrigerant Piping Work 10.4. Installation, Transferring, Servicing 11 Installation Instructions 11.1. Safety Precautions 11.2. Indoor Unit 11.3. Outdoor Unit 12 Servicing Information 12.1. Troubleshooting 12.2. Breakdown Self Diagnosis Function 12.3. Remote Control 12.4.
  • Page 3: Functions

    Indoor Fan Speed Selection • • Medium- • Medium • Medium+ • High • Automatic Fan Speed AUTO CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE AUTO SPEED HEAT COOL TIMER TIMER OFF/ON MODE FAN SPEED POWERFUL AUTO TEMP AIR SWING...
  • Page 4: Indoor Unit

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 2.2. Indoor Unit Automatic Operation Switch • To run automatic operation, force cooling or heating operation, or change remote control signal type. Operation Indication Lamps (LED) • (Green) ... Lights up in operation, POWER •...
  • Page 5: Outdoor Unit

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 2.3. Outdoor Unit Time Delay Safety Control 30 seconds Forced Operation Overload Protection Control Total Running Current Control Compressor Overheating Prevention Control IPM (Power Transistor) Overheating Protection Control Low Operation Frequency Protection Control...
  • Page 6: Product Specifications

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 3 Product Specifications 3.1. CS-E15DB4EW CU-E15DBE Cooling Capacity Heating Capacity Moisture Removal Power Source (Phase, Voltage, Cycle) Airflow Method Air Volume Noise Level Electrical Data Input Power Running Current Starting Current Piping Connection Port...
  • Page 7 Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device • Specifications are subjected to change without notice for further improvement. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Unit CS-E15DB4EW inch G (gas side) ; 1/2” inch L (liquid side) ; 1/4”...
  • Page 8: Cs-E18Db4Ew Cu-E18Dbe

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 3.2. CS-E18DB4EW CU-E18DBE Cooling Capacity Heating Capacity Moisture Removal Power Source (Phase, Voltage, Cycle) Airflow Method Air Volume Noise Level Electrical Data Input Power Running Current Starting Current Piping Connection Port (Flare piping)
  • Page 9 Size (W × H × L) Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device • Specifications are subjected to change without notice for further improvement. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Unit CS-E18DB4EW 0.193 —— inch (mm) 10 - 1/4 (260)
  • Page 10: Cs-E21Db4Es Cu-E21Dbe

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 3.3. CS-E21DB4ES CU-E21DBE Cooling Capacity Heating Capacity Moisture Removal Power Source (Phase, Voltage, Cycle) Airflow Method Air Volume Noise Level Electrical Data Input Power Running Current Starting Current Piping Connection Port (Flare piping)
  • Page 11 Size (W × H × L) Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device • Specifications are subjected to change without notice for further improvement. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Unit CS-E21DB4ES 0.193 —— inch (mm) 10 - 1/4 (260)
  • Page 12: Dimensions

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 4 Dimensions 4.1. Indoor Unit & Remote Control 4.1.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES...
  • Page 13: Outdoor Unit

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 4.2. Outdoor Unit 4.2.1. CU-E15DBE CU-E18DBE CU-E21DBE...
  • Page 14: Refrigeration Cycle Diagram

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 5 Refrigeration Cycle Diagram...
  • Page 15: Block Diagram

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 6 Block Diagram...
  • Page 16: Wiring Diagram

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 7 Wiring Diagram...
  • Page 17: Operation Details

    8.1.1. Temperature Shifting Flow 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. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 18: Cooling Operation

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 8.1.2. Cooling Operation 8.1.2.1. 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.
  • Page 19: Automatic Operation

    The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on indoor intake air temperature and outdoor air temperature at the time when the judgment is made. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Temperature shifts (°C)
  • Page 20: Indoor Fan Motor Operation

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 8.1.6. Indoor Fan Motor Operation A. Basic Rotation Speed (rpm) • Required rotation speed for fan is set to respond to the remote control setting (10 rpm unit) [Cooling, Dry, Fan] Remote Control —...
  • Page 21 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 2. Heating ii. Auto Fan Speed 1. Cooling...
  • Page 22 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 2. Heating Note: a. UP: • If move from Lo, the fan speed will be shifted to Maximum 1520 rpm. • If move from Maximum, the fan speed no change. • In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm.
  • Page 23: Outdoor Fan Motor Operation

    Outdoor fan motor is operated with 15 fan speed. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation for speed no.8. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 1 → 2 → 3 4 →...
  • Page 24: Airflow Direction

    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: Quiet Operation (Heating)

    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. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 26 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 8.1.10. 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 8.1.11.
  • Page 27: Indication Panel

    8.1.12. 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.
  • Page 28: Protection Control Features

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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 for 20 seconds and on again or after 4-way valve deices condition.
  • Page 29 20 Hz for heating mode operation. Temperature, T, for: Indoor intake air (°C) Outdoor air (°C) Indoor heat exchanger (°C) CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Cooling/Soft Dry Heating 14 or T 14 or T...
  • Page 30: Outdoor Air Temperature Control

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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.
  • Page 31 Priority is given to the which is larger when freeze prevention down status and spray prevention down status are transmitted simultaneously. In the case of spray status 0, it is referred to as maxFc. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Control contents Relative control domain Usually, control...
  • Page 32 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 8.2.3. Protection Control For Heating Operation 8.2.3.1. Intake Air Temperature Control Compressor will operate at Max freq 94 (E15D), 128 (E18D, E21D) Hz if either one of the below conditions occur: 1. When the indoor intake air temperature is less than 21°C and remote control setting fan speed is lower Me-.
  • Page 33: Deice Control

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 8.2.3.4. Deice Control • Deice starts to prevent frosting at outdoor heat exchanger. • Deice operation detection commences after minimum 60 minutes of Heating Operation. • The outdoor heat exchanger temperature drops below 3°C for long period (minimum 40 minutes) during compressor is in...
  • Page 34: Operating Instructions

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 9 Operating Instructions...
  • Page 35 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 36 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 37 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 38 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 39 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 40 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 41 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 42: Installation And Servicing Air Conditioner Using R410A

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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...
  • Page 43: Tools For Installing/Servicing Refrigerant Piping

    Start brazing as soon as you have opened the vacuum pack, and begin the vacuuming operation within 2 hours. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Table 3 Tools for installation, transferring or replacement...
  • Page 44: R410A Tools

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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...
  • Page 45 • For detecting small amounts of gas leakage, use the electric gas leak detector for HFC refrigerant. (Detection sensitivity with R410A is about 23 g/year). CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Fig. 4 Manifold gauge charging hose Conventional hoses 3.4 MPa (35 kgf/cm...
  • Page 46 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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...
  • Page 47: Refrigerant Piping Work

    A dimension (see Fig. 10) Fig. 11 Relation between the flare nut structure and flaring tool end CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Table 10 Copper tube thickness (mm) Outside diameter (mm) R410A 6.35...
  • Page 48 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Nominal Outside diameter diameter (mm) 6.35 9.52 12.70 Nominal Outside diameter diameter (mm) 6.35 9.52 12.70 Nominal Outside diameter diameter (mm) 6.35 9.52 12.70 Nominal Outside diameter diameter (mm) 6.35 9.52 12.70 2.
  • Page 49: Installation, Transferring, Servicing

    When you are removing the charging hose from the service port, it will come off more easily if you close this valve. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Fig. 12 Vacuum pump air purging configuration...
  • Page 50: Transferring (Using New Refrigerant Piping)

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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.
  • Page 51: Recharging Refrigerant During Servicing

    11. Quickly remove the charging hose from the service port. (6) If you stop midway through, the refrigerant that is in the cycle will be discharged. 12. After putting on the caps for the service port and operating valve, inspect around the caps for a gas leak. (6)(7) CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Fig. 13 Re-charging refrigerant...
  • Page 52 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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 53: Installation Instructions

    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. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE WARNING...
  • Page 54 2. Power supply connection to the room air conditioner. Connect the power supply cord of the room air conditioner to the mains using one of the following method. Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency.
  • Page 55: Indoor Unit

    3. Recommended installation height for indoor unit shall be at least 2.5 m. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE • This illustration is for explanation purposes only. The indoor unit will actually face a different way.
  • Page 56 − Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner. − Make enough distance from the cooking room to install the air conditioner in such place where it may not suck in oily steam.
  • Page 57: Installation Of Indoor Unit

    6. Connect pipe to the service valve or ball valve which is located below the outdoor unit. 7. After completed the piping connection, be sure to check if there is gas leakage in indoor and outdoor connection. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE...
  • Page 58: Indoor Unit Drain Piping

    Drain Test The air conditioner uses a drain up motor to drain water. Use the following procedure to test the drain up motor operation. • Connect the main drain pipe to exterior and leave it provisionally until the test comes to an end.
  • Page 59: Heat Insulation

    2. Precautions in high humidity circumstance. This air conditioner has been tested according to the “JIS Standard Conditions with Mist” and have been confirmed that there are no faults. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C), water drops are liable to fall.
  • Page 60: Installation Of Decorative Panel

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 11.2.6. CONNECTING THE CABLE TO THE INDOOR • Remove the mounting screw, remove the control box cover, and then connect the wires by following the procedure given in the illustration. 11.2.7. INSTALLATION OF DECORATIVE PANEL The decorative panel has its installation direction.
  • Page 61 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 3. Fit the decorative panel and ceiling wall together and confirm no gap in between. Readjust indoor unit height, if there is a gap between ceiling wall and decorative panel. 4. Open the indoor control box cover. (2 pcs) 5.
  • Page 62: Outdoor Unit

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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.
  • Page 63: Evacuation Of The Equipment

    11.3.4. 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 and High side of a charging set and the service port of the 3-way valve.
  • Page 64: Connect The Cable To The Outdoor Unit

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 11.3.5. 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 mm type designation 245 IEC 57 or heavier cord.
  • Page 65 As to parts to be sold separately • With regards to installation of the parts sold separately, follow the installation manual which is provided with the parts sold separately. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Remo-Con No. A (Default)
  • Page 66: Servicing Information

    Below are the methods used to obtain rated compressor operating specification. (a) Cooling (i) Press the Auto button continuously for 5 seconds or less than 8 seconds, the air conditioner starts operation at Cooling rated frequency. (“beep” will be heard at the 5th second.) (ii) Short the service terminal (CN-S) of the outdoor printed circuit board.
  • Page 67 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 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.
  • Page 68: Breakdown Self Diagnosis Function

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 1. Relationship between the condition of the air conditioner and pressure and electric current Condition of the air conditoner Low Pressure Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer Short circuit in the...
  • Page 69 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. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Abnormality Emergency...
  • Page 70: Remote Control

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 12.3. Remote Control Remote Control Reset • When the batteries are inserted for the first time or the batteries are replaced, you may notice the indications at remote control’s display screen blink continuously and not functionable.
  • Page 71: Auto Off/On Button

    12.4. Auto OFF/ON Button • The “Auto OFF/ON” button is used to operate the air conditioner if remote control is misplaced or malfunctioning. • Auto operation is started once “Auto OFF/ON” button is pressed. • Forced cooling operation is possible by pressing the “Auto OFF/ON” button for more than 5 seconds where “beep” sound is heard, then release the button.
  • Page 72: Disassembly Of Parts

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 12.5. Disassembly of Parts 1. Open the Intake Grille from the Front Grille by moving the catchers to center (Fig. 1). 2. Remove the Control Board Cover by removing the screws (Fig. 2).
  • Page 73 7. Remove the Turbo Fan by removing the bolt (Fig. 7). 8. Remove the Fan Motor by release the Fan Motor lead wire connectors and Fan Motor screws (Fig. 8). CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Fig. 5 Fig. 6 Fig.
  • Page 74 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Outdoor Electronic Controller Removal Procedure 1. Remove the top panel and front panel Fig. 9 2. Remove the Outdoor Electronic Controller Fig. 10 Fig. 12 Caution! When handling electronic controller, be careful of electrostatic discharge.
  • Page 75: Technical Data

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 13 Technical Data 13.1. Operation Characteristics 13.1.1. CS-E15DB4EW CU-E15DBE...
  • Page 76 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 13.1.2. CS-E18DB4EW CU-E18DBE...
  • Page 77 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 13.1.3. CS-E21DB4ES CU-E21DBE...
  • Page 78: Sensible Capacity Chart

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 13.2. Sensible Capacity Chart G CS-E15DB4EW CU-E15DBE Indoor wet bulb temp. 17.0°C 4.07 3.08 19.0°C 19.5°C 4.46 3.23 22.0°C 4.87 3.35 G CS-E18DB4EW CU-E18DBE Indoor wet bulb temp. 17.0°C 4.76 3.61 19.0°C 19.5°C...
  • Page 79: Exploded View (Indoor Unit)

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 14 Exploded View (Indoor Unit) 14.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES...
  • Page 80 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 81: Cz-Bt20E (Front Grille Complete)

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 14.2. CZ-BT20E (Front Grille Complete) Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 82: Replacement Parts List (Indoor Unit)

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 15 Replacement Parts List (Indoor Unit) 15.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES REF. NO. PARTS NAME & DESCRIPTION BASE PAN ASS’Y INNER POLYSTYRENE COMPLETE CABINET SIDE PLATE ASS’Y CABINET SIDE PLATE ASS’Y LEAD WIRE - FAN MOTOR...
  • Page 83: Cz-Bt20E (Front Grille Complete)

    LEVER ARM AIR FILTER (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 061). • “O” marked parts are recommended to be kept in stock. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE PART NO. CWE11C3105 CWE11C3353 CWA981105...
  • Page 84: Exploded View (Outdoor Unit)

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 16 Exploded View (Outdoor Unit) 16.1. CU-E15DBE CU-E18DBE CU-E21DBE Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 85: Replacement Parts List (Outdoor Unit)

    SOUND PROOF MATERIAL SOUND PROOF MATERIAL (Note) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 061). • “O” marked parts are recommended to be kept in stock. CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE QTY. CU-E15DBE CU-E18DBE ←...
  • Page 86: Electronic Circuit Diagram

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 18 Electronic Circuit Diagram 18.1. Indoor Unit G CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES SCHEMATIC DIAGRAM 1/4 INDICATOR COMPLETE R202 IC201 Vout C201 47µF SW201 POWER D205 TIMER D204 POWERFUL D203 QUIET D202 AIR SWING...
  • Page 87 SCHEMATIC DIAGRAM 2/4 1µ 150k CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE SW01 10kΩ High Static 0.01µ Pressure 1kΩ RESET IC01 UPD784956GC IC(VPP) 21 22 23 24 25 26 27 28 29 4.7k 0.1µ 0.047µ DTC114EK AN14 AN13 AN12...
  • Page 88 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE SCHEMATIC DIAGRAM 3/4 IC03 100µF CN-V2 0.01µ SW02 DRAIN PUMP TEST RUN 5.1kΩ IC04 470µF 3300µF 470µF 22kΩ 22kΩ 1/4W 1/4W 7.5Ω 0.22µ DB02 82kΩ 82Ω 82kΩ 82kΩ 270µ 1/4W 1/4W 1/4W...
  • Page 89 DRAIN MOTOR CN-DRMTR1 100p 250VAC 6.2k 6.2k ZD01 ZD02 330k 0.22µ 630V 6.2kΩ 1/4W 6.22kΩ 1/4W UNR211L CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE DRAIN MOTOR CN-DRMTR2 AC01(BLK) 4700p (GRN) 250VAC 4700p AC02 250VAC (WHT) 2200p AC03 250VAC (RED)
  • Page 90: Outdoor Unit

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 18.2. Outdoor Unit G CU-E15DBE CU-E18DBE CU-E21DBE SCHEMATIC DIAGRAM 1/4 FUSE AC-BLK ERZVEAV511 ZNR6 ERZVEAV511 ERZVEAV511 AC-WHT HOT2 4-WAYS VALVE HOT1 DATA 510k 1/4W 510k 1/4W ZNR3 ERZV10D102 RY-AC1 ZNR2 ERZVEAV511 G08902N00D01...
  • Page 91 MAZ4047 1/4W 1/4W 1/4W 1/4W 10µ TLP620 CN-JP2 10µ 1µ 33Ω 1/4W RD10EB2 100Ω 2SC3441 ERA15-01 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE ET529AK7NLAC EG01Z R125 R128 0.01µ RL4Z 400V EG01Z EX16 R136 4.7Ω AL01Z AL01Z 680µ 1/4W 22µ...
  • Page 92 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE SCHEMATIC DIAGRAM 3/4 C113 0.1µ C117 0.1µ 3900p 200k 0.1µ R203 C124 0.047µ D4CE35030002 R199 1µ 12.1k CN-CPU 0.047µ C112 0.1µ C118 C119 0.047µ 0.047µ R201 R200 C121 4.99k 10µ C111 C120 1µ...
  • Page 93: Schematic Diagram

    R127 R135 0.047µ R146 R117 27.4k 332Ω 100µ R124 39.2k 10µ 0.047µ TL3472 R134 1000p CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE R138 33Ω 47µ 47µ 0.047µ 0.047µ 25V 1000p 47µ 0.047µ 0.047µ 25V 470p 47µ 0.047µ 0.047µ 25V 470p 0.047µ...
  • Page 94 CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE How to use electronic circuit diagram TIMER TABLE <INDOOR> 4 way valve abnormality Outdoor air temp. for Hz No. decision Anti-dew formation control Anti-freezing control Thermo OFF delay Low pressure control (gas leakage) compressor OFF time...
  • Page 95: Remote Control

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 18.3. Remote Control...
  • Page 96: Print Patternindoor Unit Printed Circuit Board

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 18.4. Print Pattern Indoor Unit Printed Circuit Board...
  • Page 97: Print Patternoutdoor Unit Printed Circuit Board View

    CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE 18.5. Print Pattern Outdoor Unit Printed Circuit Board View [PHAAM] Printed in Malaysia...

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