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Panasonic CU-E18DBE Service Manual
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Panasonic CU-E18DBE Service Manual

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CONTENTS
CS-E15DD3EW CU-E15DBE
CS-E18DD3EW CU-E18DBE
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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. MAC0503044C8

Air Conditioner

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Summary of Contents for Panasonic CU-E18DBE

  • Page 1: Table Of Contents

    4.1. Indoor Unit & Remote Control 10.2. Tools For Installing/Servicing Refrigerant Piping 4.2. Outdoor Unit 10.3. Refrigerant Piping Work © 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 2: Features

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 10.4. Installation, Transferring, Servicing 14 Exploded View (Indoor Unit) 11 Installation Instructions 14.1. CS-E15DD3EW CS-E18DD3EW 15 Replacement Parts List (Indoor Unit) 11.1. Safety Precautions 15.1. CS-E15DD3EW CS-E18DD3EW 11.2. Indoor Unit 11.3. Outdoor Unit 16 Exploded View (Outdoor Unit) 12 Servicing Information 16.1.

  • Page 3: Functions

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 2 Functions 2.1. Remote Control AUTO SPEED HEAT COOL TIMER TIMER OFF/ON MODE FAN SPEED POWERFUL AUTO TEMP AIR SWING QUIET MANUAL TIMER CANCEL CANCEL CHECK CLOCK RESET INVENTER TEMP OFF / ON I Operation OFF / ON Room Temperature Setting •...

  • Page 4: Indoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 2.2. Indoor Unit Automatic Operation Switch 24-Hour Real Time Timer Control • To run automatic operation, force cooling or heating operation, or change remote control Automatic Restart Control signal type. • Operation is restarted after power failure at previous setting mode.

  • Page 5: Outdoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 Mininum Operation Frequency...

  • Page 6: Product Specifications

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 3 Product Specifications 3.1. CS-E15DD3EW CU-E15DBE Unit CS-E15DD3EW CU-E15DBE Cooling Capacity 4.10 (0.90 - 4.70) kcal/h 3,530 (770 - 4,040) BTU/h 14,000 (3,070 - 16,000) Heating Capacity 4.80 (0.90 - 5.50) kcal/h 4,130 (770 - 4,730)
  • Page 7 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE Unit CS-E15DD3EW CU-E15DBE Pipe Size inch G (gas side) ; 1/2” G (gas side) ; 1/2” (Flare piping) inch L (liquid side) ; 1/4” L (liquid side) ; 1/4” Drain Inner diameter — Hose Length 0.255...

  • Page 8: Cs-E18Dd3Ew Cu-E18Dbe

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 3.2. CS-E18DD3EW CU-E18DBE Unit CS-E18DD3EW CU-E18DBE Cooling Capacity 5.10 (0.90 - 5.70) kcal/h 4,390 (770 - 4,900) BTU/h 17,400 (3,070 - 19,400) Heating Capacity 6.10 (0.90 - 7.10) kcal/h 5,250 (770 - 6,110) BTU/h 20,800 (3,070 - 24,200)
  • Page 9 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE Unit CS-E18DD3EW CU-E18DBE Drain Inner diameter — Hose Length 0.255 — Power Cord Length —— — Number of core-wire — Dimensions Height inch (mm) 11 - 7/32 (285) 29 - 17/32 (750) Width inch (mm)

  • Page 10: Dimensions

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 4 Dimensions 4.1. Indoor Unit & Remote Control 4.1.1. CS-E15DD3EW...
  • Page 11 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 4.1.2. CS-E18DD3EW...

  • Page 12: Outdoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 4.2. Outdoor Unit 4.2.1. CU-E15DBE CU-E18DBE...

  • Page 13: Refrigeration Cycle Diagram

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 5 Refrigeration Cycle Diagram...

  • Page 14: Block Diagram

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 6 Block Diagram...

  • Page 15: Wiring Diagram

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 7 Wiring Diagram...

  • Page 16: Operation Details

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 8 Operation Details 8.1. Basic Operation Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjust output power for maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of environment and performing temperature shifting.

  • Page 17: Cooling Operation

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 18: Automatic Operation

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 8.1.5. Automatic Operation This mode can be set using remote control and the operation is decided by remote control setting temperature, indoor intake air temperature and outdoor air temperature. During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.

  • Page 19: Indoor Fan Motor Operation

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 20 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 2. Heating ii. Auto Fan Speed 1. Cooling...
  • Page 21 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 22: Outdoor Fan Motor Operation

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 8.1.7. 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. RPM during Fan Speed (rpm)
  • Page 23 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.

  • Page 24: Powerful Mode Operation

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 8.1.9. 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 8.1.10. 24-Hour Real Time Timer Control ON Timer ON timer can be set using remote control, the unit with timer set will start operate earlier than the setting time.

  • Page 25: Auto Restart Control

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 8.1.11. 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 26: Protection Control Features

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 27 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 8.2.1.5. Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below figure. 8.2.1.6. Low Pressure Prevention Control (Gas Leakage Detection) a. Control start conditions Control will perform when (1) - (3) condition continues operation for 5 minute and (4) is fulfill.

  • Page 28: Outdoor Air Temperature Control

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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. This control will begin one minute after the compressor starts.
  • Page 29 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 3. Control contents In the outdoor fan speed no. i) In protectorate Domain A is referred to as min 660 rpm. ii) In protectorate Domain B, it is referred to as min 600 rpm. 4. Condition resolutive It is canceled when it stops satisfying all of the above-mentioned.
  • Page 30 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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) 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 31: Deice Control

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 32: Operating Instructions

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 9 Operating Instructions...
  • Page 33 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...
  • Page 34 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...
  • Page 35 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...
  • Page 36 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...
  • Page 37 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...
  • Page 38 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...
  • Page 39 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE...

  • Page 40: Installation And Servicing Air Conditioner Using R410A

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 41: Tools For Installing/Servicing Refrigerant Piping

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.

  • Page 42: R410A Tools

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 43 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 44 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.

  • Page 45: Refrigerant Piping Work

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.
  • Page 46 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE Table 11 R410A flaring dimensions Nominal Outside Wall thickness A (mm) diameter diameter (mm) R410A flaring Conventional flaring tool (mm) tool, clutch type Clutch type Wing-nut type 6.35 0 - 0.5 1.0 - 1.5 1.5 - 2.0 9.52...

  • Page 47: Installation, Transferring, Servicing

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.
  • Page 48 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 49 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.
  • Page 50 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 51: Installation Instructions

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 11 Installation Instructions Required tools for Installation Works 1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench 18 N.m (1.8 kgf.m) 55 N.m (5.5 kgf.m)
  • Page 52 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 53 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE Attached accessories I Required Materials • Read the catalog and other technical materials and prepare the required materials. • Applicable piping kit CZ-4F5, 7, 10BP I Other Items to be Prepared (Locally Purchased) Product name...

  • Page 54: Indoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 11.2. Indoor Unit 11.2.1. SELECTING THE INSTALLATION LOCATION Take into consideration the following contents when creating the blueprint. I Indoor unit installation location • The location should be strong enough to support the main unit without vibration.
  • Page 55 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 11.2.3. INSTALLING THE INDOOR UNIT (INSTALLATION EMBEDDED IN THE CEILING) • Always provide sufficient entry and exit space to allow installation work, inspection and unit replacement. • Waterproof the rear surface of the ceiling below the unit in consideration of water droplets forming and dropping.
  • Page 56 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE PREPARING TO INSTALL THE INDOOR UNIT • Fit the drain hose insulation 7 around the drain hose as shown in the diagram beside. • Attach the discharge chamber. ( ) (10 screws) • Cut out the intake cut-out portions at the unit rear panel using a cutter or other tools to make openings.
  • Page 57 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE Mounting the Receiver • Select a ceiling or wall position that does not block reception for the mounting location. Note that the receiver cord is 2.0 m. • First, hook the clamps 11 onto the receiver mount 10 as shown in the diagram below, then partially tighten the mounting screws 12 .
  • Page 58 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE CHECK THE DRAINGAGE Check after connecting the power supply. • Pour approximately 600 cc of water into the drain pan of the main unit using a squeeze bottle, etc. • Press the drain test run switch on the control board in the control box to start the drain motor and check whether the water drains normally.

  • Page 59: Outdoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 11.3. Outdoor Unit 11.3.1. SELECTING THE INSTALLATION LOCATION • 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.

  • Page 60: Evacuation Of The Equipment

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.

  • Page 61: Connect The Cable To The Outdoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 flexible cord, type designation 245 IEC 57 or heavier cord.
  • Page 62 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE AUTO SWITCH OPERATION The following operations can be performed by pressing the “AUTO” switch. 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto Switch is pressed. 2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING...

  • Page 63: Servicing Information

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 12 Servicing Information Caution: • Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
  • Page 64 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 65: Breakdown Self Diagnosis Function

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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...

  • Page 66: Error Code Table

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE Error Codes Table Diagnosis Abnormality / Protection control Abnormality Emergency Primary location to verify display Judgement operation • Internal / external cable connections Indoor / outdoor abnormal > 1 min after starting Indoor fan operation...

  • Page 67: Remote Control

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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. If this condition happens, try to reset the remote control by pushing the reset terminal with a pointing device.

  • Page 68: Auto Off/On Button

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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 69: Disassembly Of Parts

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 12.5. Disassembly of Parts 12.5.1. Detaching the Upper and Inner Casing 1. Unscrew the 4 screws on the Upper and Inner Casing and detach them 12.5.2. Detaching the Control Board 1. First detach the Upper and Inner Casing (12.4.1.).
  • Page 70 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 12.5.3. Detaching the Fan 1. First detach the Upper and Inner Casing (12.4.1) 2. Disengage the 4 screws (2 each on the left and right) on the Air Guide. 3. Use a 2.5 mm hexagonal wrench to loosen the bolt...

  • Page 71: Outdoor Electronic Controller Removal Procedure

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 12.5.5. 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.

  • Page 72: Technical Data

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 13 Technical Data 13.1. Operation Characteristics 13.1.1. CS-E15DD3EW CU-E15DBE...
  • Page 73 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 13.1.2. CS-E18DD3EW CU-E18DBE...

  • Page 74: Sensible Capacity Chart

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 13.2. Sensible Capacity Chart G CS-E15DD3EW CU-E15DBE Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 4.07 3.08 1.14 3.80 2.96 1.22 3.53 2.84 1.31 3.21 2.70 1.41 19.0°C 4.10 1.24 19.5°C 4.46 3.23 1.16 4.17 3.10...

  • Page 75: Exploded View (Indoor Unit)

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 14 Exploded View (Indoor Unit) 14.1. CS-E15DD3EW CS-E18DD3EW 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 76: Replacement Parts List (Indoor Unit)

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 15 Replacement Parts List (Indoor Unit) 15.1. CS-E15DD3EW CS-E18DD3EW REF NO. DESCRIPTION & NAME QTY. CS-E15DD3EW CS-E18DD3EW REMARKS ← FLOAT SWITCH CWA12161 ← THERMAL FUSE CWA16C1038 ← TERMINAL BOARD COMPLETE CWA28K1045J ← SENSOR COMPLETE CWA50C2270 ←...

  • Page 77: Exploded View (Outdoor Unit)

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 16 Exploded View (Outdoor Unit) 16.1. CU-E15DBE CU-E18DBE 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 78: Replacement Parts List (Outdoor Unit)

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 17 Replacement Parts List (Outdoor Unit) 17.1. CU-E15DBE CU-E18DBE REF NO. DESCRIPTION & NAME QTY. CU-E15DBE CU-E18DBE REMARKS ← CHASSY ASSY CWD50K2085 ← ANTI-VIBRATION BUSHING CWH50077 ← COMPRESSOR 5CS130XAD04 ← NUT-COMPRESSOR MOUNT CWH56000 ← SOUND PROOF MATERIAL...

  • Page 79: Electronic Circuit Diagram

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 18 Electronic Circuit Diagram 18.1. Indoor Unit G CS-E15DD3EW CS-E18DD3EW...

  • Page 80: Outdoor Unit

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 18.2. Outdoor Unit G CU-E15DBE CU-E18DBE SCHEMATIC DIAGRAM 1/4 REACTOR GRY1 GRY2 ZNR3 PTC1 ERZV10D102 65µ 350V LJP7 LJP11 RY-AC1 LJP9 ZNR2 PTC2 ERZVEAV511 LJP10 100k 1/4W 850µ RY-PWR FUSE 400V AC-BLK G08902N00D01 100k 1/4W 850µ...
  • Page 81 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE SCHEMATIC DIAGRAM 2/4 FUSE2 (T 3.15A L 250V) R111 R114 464k 464k 1/4W 1/4W R112 R115 ET529AK7NLAC CN-JP1 464k 464k 1A5-E 1/4W 1/4W 600V R154 R159 EG01Z 470µ 1/4W 1/4W R116 R125 R128 10.7k R113 D33 D34 0.01µ...
  • Page 82 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE SCHEMATIC DIAGRAM 3/4 C113 0.1µ µ 0.047 C117 0.1µ 3900p 10µ 3900p 200k HRU0103A2 0.01µ 0.1µ 100µ 0.1µ 0.1µ 6.3V P42/TM9A1 P41/TM8810 P40/TMA10 P37/TM710 P74/IRQ00 P36/TM610 0.047µ P75/IRQ01 P35/TM510 P76/IRQ02 P77/IRQ03 P34/TM410 P80/ADIN00 P81/ADIN01 P33/TM310...
  • Page 83 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE SCHEMATIC DIAGRAM 4/4 C106 0.47µ 630V R138 HV1C1 33Ω 47µ 47µ 0.047µ 0.047µ 25V 1000p 47µ 0.047µ HV1C2 0.047µ 25V 470p 47µ 0.047µ HV1C3 0.047µ 25V YELLOW LVIC 470p 0.047µ 25V U OUT R127 IN(X)
  • Page 84 CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 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.

  • Page 85: Remote Control

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 18.3. Remote Control...

  • Page 86: Print Patternindoor Unit Printed Circuit Board

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 18.4. Print Pattern Indoor Unit Printed Circuit Board...

  • Page 87: Print Patternoutdoor Unit Printed Circuit Board View

    CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE 18.5. Print Pattern Outdoor Unit Printed Circuit Board View [PHAAM] Printed in Malaysia...

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