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Panasonic CS-XE9DKE Service Manual

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  Summary of Contents for Panasonic CS-XE9DKE

  • Page 1: Table Of Contents

    11.2. Tools For Installing/Servicing Refrigerant Piping 7 Wiring Diagram 11.3. Refrigerant Piping Work 8 Operation Details 11.4. Installation, Transferring, Servicing © 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-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 12 Servicing Information 17.1. CU-XE9DKE CU-XE12DKE 12.1. Troubleshooting 18 Electronic Circuit Diagram 12.2. Breakdown Self Diagnosis Function 18.1. Remote Control 12.3. Remote Control 18.2. Print Pattern Indoor Unit Printed Circuit Board (Main) 105 12.4. Disassembly Of Parts 13 Technical Data 18.3.
  • Page 3: Functions

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 2 Functions 2.1. REMOTE CONTROL FAN SPEED Indoor Fan Speed Selection • • Medium- OFF/ON • Medium Operation OFF / ON • Medium+ • High • Automatic Fan Speed AUTO MODE Operation Mode Selection TEMP Room Temperature Setting •...
  • Page 4: Indoor Unit

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 2.2. INDOOR UNIT AUTO OFF / ON Automatic and 5 Manual Indoor Fan Automatic Operation Switch Speeds • Press for < 5s to operate Automatic operation mode. (Used when the remote control cannot be Automatic and 5 Manual Vertical used.)
  • Page 5: Outdoor Unit

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 2.3. OUTDOOR UNIT Time Delay Safety Control 30 seconds Forced Operation Overload Protection Total Running Current Control Compressor Overheating Prevention Control IPM (Power Transistor) Overheating Protection Control Low Operation Frequency Protection Control Outdoor Air Temperature...
  • Page 6: Product Specifications

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 3 Product Specifications 3.1. CS-XE9DKE CU-XE9DKE Unit CS-XE9DKE CU-XE9DKE Cooling Capacity 2.6 (0.60 - 3.00) kcal/h 2,240 (520 - 2,580) BTU/h 8,870 (2,050 - 10,200) Heating Capacity 3.6 (0.60 - 5.00) kcal/h 3,100 (520 - 4,300)
  • Page 7 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Unit CS-XE9DKE CU-XE9DKE Pipe Size inch G (gas side) ; 3/8” G (gas side) ; 3/8” (Flare piping) inch L (liquid side) ; 1/4” L (liquid side) ; 1/4” Drain Inner diameter — Hose Length 0.65...
  • Page 8: Cs-Xe12Dke Cu-Xe12Dke

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 3.2. CS-XE12DKE CU-XE12DKE Unit CS-XE12DKE CU-XE12DKE Cooling Capacity 3.45 (0.60 - 4.00) kcal/h 2,970 (520 - 3,440) BTU/h 11,800 (2,050 - 13,600) Heating Capacity 4.80 (0.60 - 6.50) kcal/h 4,130 (520 - 5,590) BTU/h 16,400 (2,050 - 22,200)
  • Page 9 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Unit CS-XE12DKE CU-XE12DKE Drain Inner diameter — Hose Length 0.65 — Power Cord Length 2.1 m — Number of core-wire 3 core wires × 1.0 mm — Dimensions Height inch (mm) 10 - 26/32 (275)
  • Page 10: Dimensions

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 4 Dimensions...
  • Page 11 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE...
  • Page 12: Refrigeration Cycle Diagram

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 5 Refrigeration Cycle Diagram...
  • Page 13: Block Diagram

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 6 Block Diagram...
  • Page 14: Wiring Diagram

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 7 Wiring Diagram...
  • Page 15: Operation Details

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8 Operation Details 8.1. Basic Funtion 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 16 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Table (b): Outdoor Air Temperature Shifting Mode: Outdoor Temperature, X (°C): Temperature Shift (°C) XE9DK XE12DK Cooling/Soft Dry 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Heating 0.00 0.00 0.00 0.00 0.00 0.00 +0.50 +1.00 +1.00...
  • Page 17: Compressor Operation Frequency

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.1.2. Compressor Operation Frequency Zone Intake Air Temperature - Internal Setting Temperature (°C) Freq. H Cooling Soft Dry Heating Cooling Soft Dry Heating Remark XE9DK XE12DK XE9DK XE12DK XE9DK XE12DK -2.0 -3.0 -1.5 -2.5 -1.0 -2.0...
  • Page 18: Soft Dry Operation

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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.
  • Page 19: Indoor Fan Motor Operation

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 20 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE B. Indoor Fan Control i. Indoor fan control operation outline 1. Cooling / Dry / Fan / Ion / Oxygen 2. Heating...
  • Page 21 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE ii. Auto Fan Speed 1. Cooling, Ion, Oxygen 2. Heating Note: a. UP: • If move from Lo, the fan speed will be shifted to Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK). • If move from Maximum, the fan speed no change.
  • Page 22 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 39 Hz (XE9DK), 52 Hz (XE12DK) & above.
  • Page 23: Outdoor Fan Motor Operation

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE D. Deodorizing Control i. Control condition Control at cooling/dry operation and auto fan speed setting. 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.
  • Page 24: Airflow Direction

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 25 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 (°)
  • Page 26: Quiet Operation (Heating)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Manual Fan Speed (Dry operation) 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.
  • Page 27: Auto Restart Control

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.1.11. 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.
  • Page 28: Indoor Power Relay Control

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 4. When the switch is pressed between 11 to 16 seconds and together with the signal from remote control, the unit can be changed to different controlling setting (A-B mode) or to testify oxygen operation.
  • Page 29 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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.
  • Page 30: Protection Control Features

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.1.16.2. Ionizer Operation case study Case 1 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.
  • Page 31 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 4. The first 30 minutes of cooling operation, (A) will be applied. 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.
  • Page 32 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.2.1.6. Low Pressure Prevention Control (Gas Leakage Detection) 1. When the conditions listed in below table occur, the compressor stops and restarts after three minutes. 2. If this phenomenon is continuously occurring for twice within 20 minutes, all indoor and outdoor relays will be cut off.
  • Page 33: Outdoor Air Temperature Control

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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.
  • Page 34 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.2.2.4. Anti-Dew Formation Control Anti-Dew control is perform if the following conditions is fulfilled during cooling/dry operation. a. Control Start Condition 1) Indoor Intake Air Temperature 24°C & above 2) Outdoor Air Temperature Refer below 3) Remote Control Setting Temperature 16°C &...
  • Page 35: Protection Control For Heating Operation

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.2.3. Protection Control For Heating Operation 8.2.3.1. Anti Cold Draft Control Indoor fan speed varies in accordance to indoor heat exchanger temperature, based on type of air volume and direction, as shown below. 1. Manual Fan Speed...
  • Page 36 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Note: a. UP: • If move from Lo, the fan speed will be shifted to Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK). • If move from Maximum, the fan speed no change. • In up zone, 10 rpm is added for every 10s until Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK).
  • Page 37 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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. 8.2.3.5. Preliminary Operation Control 1. Purpose To improve heating cool start characteristich in which compared to previous model, achived 40°C of discharge air in shorter time.
  • Page 38: Deice Control

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 a. During deice operation, the relationship between outdoor pipe temperature and time T5 is such operation will proceed to next stage.
  • Page 39 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 3. Explaination of operation 1) Before the deice is started, compressor frequency is set to the specified value for T1-timer. 2) After deice is started, the 4-way valve, OD Fan and ID fan are OFF.
  • Page 40: Oxygen Enrich Operation

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 8.3. Oxygen Enrich Operation 8.3.1. Purpose Increase usage range by enable oxygen enrichment only operation. 8.3.2. Oxygen Enrichment Control -1 A. Indoor fan control 1. Air flow volume manual Air flow volume as set by remote control. Speed same as for Cool mode.
  • Page 41 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 2. When operate together with ON/OF timer. a. ON timer is set during operation stop. Previous operation is Oxygen only, → Previous mode (Auto, Heat, Cool, Dry, Fan) only will operate. b. ON timer is set during Oxygen only operation.
  • Page 42 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE B. Oxygen enrich control overview Upon receiving ON signal from indoor unit, the outdoor vacuum pump, fan & 2 way valve will operate according to the various protection control setting. C. Oxygen enrich protection control (O supply level judgement) 1.
  • Page 43 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Outdoor air temp. status supply level Comp. top temp. status supply level Continuous running ( ) (freeze-up prevention control)
  • Page 44 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Enrich Protection Control Vacuum Pump Operation Time Remark Operation supply level OFF time (min) ON time (min) EOPMPS01 - EOPMPS04 EOPMPS04 Continuous OFF EOPMPS01 - EOPMPS02 EOPMPS03 3 min ON 7 min OFF EOPMPS01 - EOPMPS03...
  • Page 45 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Detail Explanation for Specification − Life span counter measure Increase life span by limiting vacuum pump continuous running period (assure life span of over 30,000h). − Temp. rise counter measure. − OLP Vacuum pump OLP Open temp.
  • Page 46 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE D. Oxygen Enrich Starting Control 1. Purpose • Improve Oxygen supply amount by supplying fresh air to surrounding area of Oxygen enrich membrane during starting time. • Masking of vacuum pump starting sound. • Prevent vacuum pump starting difficulty at low outdoor temperature.
  • Page 47 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Date name Description Data MOPMPS07 Vacuum pump operation start delay time EOBENS01 Oxygen enrich start control 2 way valve operation time (Ave) 30 min EOBENS02 Oxygen enrich start control 2 way valve operation time (Low)
  • Page 48 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Exceptional condition • During vacuum pump delay ON within MOPMPS07 second in the start control Outdoor air temp. T EOTteisi EOBENT04 EOBENS04 EOBENT05 EOBENT04 EOBENS05 EOBENT06 EOBENT05 EOBENS06 EOBENT06 EOBENS07 Detail Explaination for Specification • In order to blow out water from tube, 2 way valve is open before vacuum pump stop during stop operation. At this condition, air flow increase 4 ~ 5 times, where indoor O supply sound will increase but not noticeable at normal operation.
  • Page 49 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 2. Freeze-up prevention, vacuum pump continuous running control • Avoid freeze-up in tube by vacuum pump continuous running at low outdoor temp. • Start condition a. OD temp status 1(a,b) b. O supply level • Control content a.
  • Page 50 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE supply level 0 → ii. OD air temp. status 1(a, b) & O b. Control content 2 way valve is ON periodically as shown below. Freeze-up prevention, 2 OD air temp. 2 way valve OFF time...
  • Page 51 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE G. Installation (O ) Check Control From the installation check signal release by indoor unit, vacuum pump & 2 way valve is ON continuously for installation fault detection. (Pump & valve delay start & delay OFF control is inactive).
  • Page 52: Operating Instructions

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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.
  • Page 53 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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...
  • Page 54: Operation Modes

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE HOW TO OPERATE I Operation Details Auto, Heat, Cool, Auto, Heat, Cool, Dr y, Fan Dr y, Fan AUTO - Automatic Operation • The unit will automatically select the operation mode according to the setting, outdoor and room temperature.
  • Page 55: Fan Speed

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE HOW TO OPERATE I Operations Details Oxygen Oxygen, , Quiet, Quiet, Ion, Fan Speed, Ion, Fan Speed, OXYGEN • Enriches oxygen content in fresh air. Air Swing Air Swing • Oxygen operation could be activated independently.
  • Page 56 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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.
  • Page 57 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 ≃...
  • Page 58: Installation Instructions

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10 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) 42 N.m (4.2 kgf.m)
  • Page 59 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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.
  • Page 60 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE Attached accessories Indoor/Outdoor Unit Installation Diagram Applicable piping kit CZ-3F5, 7BP (XE9DK) CZ-4F5, 7, 10BP (XE12DK) SELECT THE BEST LOCATION INDOOR UNIT • There should not be any heat source or steam near the unit.
  • Page 61: Indoor Unit

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10.2. Indoor Unit 10.2.1. SELECT THE BEST LOCATION 10.2.3. 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.
  • Page 62 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 3. For the embedded piping (This can be used for left rear piping & left bottom piping also.)
  • Page 63 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10.2.5. 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 (XE9DK, XE12DK) ×...
  • Page 64 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE HOW TO TAKE OUT FRONT GRILLE AUTO SWITCH OPERATION Please follow the steps below to take out front grille if The below operations will be performed by pressing the necessary such as when servicing. “AUTO” switch.
  • Page 65: Outdoor Unit

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10.3. Outdoor Unit 10.3.1. SELECT THE BEST LOCATION 10.3.3. CONNECTING THE PIPING (Refer to “Select the best location” Connecting The Piping To Indoor Unit section) Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe.
  • Page 66 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10.3.4. EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION) WHEN INSTALLING AN AIR CONDITIONAL, BE SURE TO EVACUTE 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 67: Connect The Cable To The Outdoor Unit

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10.3.5. CONNECT THE CABLE TO THE OUTDOOR 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 (XE9DK, XE12DK) × 1.5 flexible cord, type designation 245 IEC 57 or heavier cord.
  • Page 68 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 10.3.7. OXYGEN TUBE CONNECTION complete. To make sure that it’s done properly, pull out lightly to check if can be removed. 2. Connection check • Do connection check after normal running cooling/heating been confirmed during trial operation.
  • Page 69: Installation And Servicing Air Conditioner Using R410A

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 11 Installation and Servicing Air Conditioner Using R410A 11.1. Outline 11.1.1. 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 70: Tools For Installing/Servicing Refrigerant Piping

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 71: R410A Tools

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 11.2.2. 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 72 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 73 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 74: Refrigerant Piping Work

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 11.3. Refrigerant Piping Work 11.3.1. 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 75 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 76: Installation, Transferring, Servicing

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 77: Transferring (Using New Refrigerant Piping)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 11.4.2. 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 78 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 3. Fully open the handle Lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for at least one hour. 4. Confirm that the low pressure gauge shows a reading of -0.1 Mpa (-76 cmHg), then fully close the handle Lo, and turn off the vacuum pump.
  • Page 79 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 11.4.6. 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 80: Servicing Information

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 81 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 82: Breakdown Self Diagnosis Function

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 83 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 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 84: Remote Control

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 12.3. 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.
  • Page 85: Disassembly Of Parts

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 12.4. Disassembly Of Parts 12.4.1. Indoor Control Board Removal Procedures 1. Remove the Front Grille Fig. 1 Fig. 2 2. Remove the Indoor Control Board Fig. 4 Fig.3 Fig. 5 Fig. 6...
  • Page 86 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 12.4.2. Indoor Electronic Controller Removal Procedures 1. Remove Main Electronic Controller 2. Remove Power Electronic Controller Fig. 10 Fig. 7 Fig. 8 Fig. 11 Fig. 9...
  • Page 87: Cross Flow Fan And Indoor Fan Motor Removal Procedures

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 12.4.3. Cross Flow Fan and Indoor Fan Motor Removal Procedures 1. Remove Cross Flow Fan 2. Remove the Fan Motor Fig. 15 Fig. 12 Fig. 13 Fig. 14...
  • Page 88: Outdoor Electronic Controller Removal Procedures

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 12.4.4. Outdoor Electronic Controller Removal Procedures 1. Remove the top panel and front panel CAUTION • Due to high voltage, do not touch the terminals in the hatching area during operation and during one minute after switching OFF.
  • Page 89: Technical Data

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 13 Technical Data...
  • Page 90 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE...
  • Page 91 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.58 1.96 0.64 2.41 1.88 0.69 2.24 1.80 0.74 2.04 1.71 0.80 19.0°C 2.60 0.70 19.5°C 2.83 2.05 0.65 2.65 1.97 0.70 2.46 1.89 0.75 2.24 1.80...
  • Page 92: Exploded View (Indoor Unit)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 14 Exploded View (Indoor Unit) 14.1. CS-XE9DKE CS-XE12DKE 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 93: Replacement Parts List (Indoor Unit)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 15 Replacement Parts List (Indoor Unit) 15.1. CS-XE9DKE CS-XE12DKE REF. NO. PART NAME & DESCRIPTION QTY. CS-XE9DKE CS-XE12DKE REMARKS ← CHASSY COMPLETE CWD50C1435 ← FAN MOTOR CWA981056 ← CROSS FLOW FAN COMPLETE CWH02C1028 ← BEARING ASS’Y CWH64K007 ←...
  • Page 94: Exploded View (Outdoor Unit)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 16 Exploded View (Outdoor Unit) 16.1. CU-XE9DKE CU-XE12DKE 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 95: Replacement Parts List (Outdoor Unit)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 17 Replacement Parts List (Outdoor Unit) 17.1. CU-XE9DKE CU-XE12DKE REF NO. DESCRIPTION & NAME QTY. CU-XE9DKE CU-XE12DKE REMARKS ← CHASSY ASSY CWD50K2073 ← ANTI-VIBRATION BUSHING CWH50077 ← COMPRESSOR 5CS102XEC ← NUT-COMPRESSOR MOUNT CWH56000 ← SOUND PROOF MATERIAL CWG302242 ←...
  • Page 96: Electronic Circuit Diagram

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 18 Electronic Circuit Diagram • CS-XE9DK CS-XE12DK SCHEMATIC DIAGRAM 1/3 TO OUTDOOR CN-MAIN PH10 (WHT) R14 510 TEMPERATURE FUSE R8 5.1k 0.022 1000p POWER SUPPLY RY-PWR R1 43 R2 43 1/2W 1/2W CN-HA R17 1k...
  • Page 97 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE SCHEMATIC DIAGRAM 2/3 RECEIVER (MX-3) IC101 R101 CN-RCV CN-RCV R12 1k 1000p C101 22 F (PH5) CN-STM1 TD62003AF VERTICAL (PH5) CN-STM2 HORIZONTAL TOD0 POWER RELAY TD62003AF INTP3 AUTO OPERATION INTP2 OXYGEN LED 50/60Hz INTP1 DETECTION QUIET LED R16 5.1k...
  • Page 98 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE SCHEMATIC DIAGRAM 3/3 ELECTRONIC CONTROL UNIT F001 CN001 C003 L001 Z001 C002 C005 DB004 C004 R056 Z002 TH002 TH001 D007 R030 R046 CN002 L002 R003 R028 PC005 Q002 R029 R113 PC001 R114 PC004 R002 Q001...
  • Page 99 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE • CU-XE9DK CU-XE12DK SCHEMATIC DIAGRAM 1/3 REACTOR C-AC3 GREEN FG1 BLACK GRY2 GRY1 C-PFC2 BLUE R174 ZNR109 R196 R175 DC-2 DC+2 PTC3 R195 BLACK R178 ZNR107 DC+1 R177 R194 PTC2 DC-1 R176 BLACK PTC1 AC - BLK...
  • Page 100 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE SCHEMATIC DIAGRAM 2/3 ETXMJ326X1C T101 NJM78M15F ERA2204-04 FUSE 101 C113 0.01 0.01 R71 R72 R148 (JUMPER) ERB83-006 R199 R133 R101 R128 0.01 NJM78M05F R102 R134 0.22 R137 630V R149 R103 R135 R200 C123 0.01 ERA22-04...
  • Page 101 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE SCHEMATIC DIAGRAM 3/3 CN-FM1 D13 ERA22-06 R106 C126 C102 HVIC1 C101 0.047 C125 CORE R138 ERA22-06 C103 C104 HVIC2 0.047 BLUE ERA22-06 C105 COMPRESSOR C106 HVIC3 0.047 YELLOW LVIC U OUT 1000p 0.047 IN(X) R53 680...
  • Page 102 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE...
  • Page 103 CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE How to use electronic circuit diagram...
  • Page 104: Remote Control

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 18.1. Remote Control...
  • Page 105: Print Pattern Indoor Unit Printed Circuit Board (Main)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 18.2. Print Pattern Indoor Unit Printed Circuit Board (Main)
  • Page 106: Print Pattern Indoor Unit Printed Circuit Board (Power)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 18.3. Print Pattern Indoor Unit Printed Circuit Board (Power) 18.4. Print Pattern Indicator Display...
  • Page 107: Print Pattern Outdoor Unit Printed Circuit Board (Main)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 18.5. Print Pattern Outdoor Unit Printed Circuit Board (Main)
  • Page 108: Print Pattern Outdoor Unit Printed Circuit Board (Oxygen)

    CS-XE9DKE CU-XE9DKE / CS-XE12DKE CU-XE12DKE 18.6. Print Pattern Outdoor Unit Printed Circuit Board (Oxygen) [PHAAM] Printed in Malaysia...

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