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Panasonic CS-NE7GKE Service Manual
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Panasonic CS-NE7GKE Service Manual

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TABLE OF CONTENTS

1 Safety Precaution ------------------------------------------------ 2
2 Specifications ----------------------------------------------------- 4
2.1. CS-NE7GKE CU-NE7GKE------------------------------ 4
2.2. CS-NE9GKE CU-NE9GKE------------------------------ 6
2.3. CS-NE12GKE CU-NE12GKE -------------------------- 8
3 Features ------------------------------------------------------------10
4.1. Product Overview----------------------------------------- 11
5 Dimensions--------------------------------------------------------12
5.1. Indoor Unit--------------------------------------------------12
5.2. Outdoor Unit -----------------------------------------------13
6 Refrigeration Cycle Diagram --------------------------------14
7 Block Diagram----------------------------------------------------15
8 Wiring Connection Diagram ---------------------------------16
8.1. Indoor Unit--------------------------------------------------16
CS-NE7GKE CU-NE7GKE
CS-NE9GKE CU-NE9GKE
CS-NE12GKE CU-NE12GKE
PAGE
8.2. Outdoor Unit----------------------------------------------- 17
9 Electronic Circuit Diagram----------------------------------- 18
9.1. Indoor Unit ------------------------------------------------- 18
9.2. Outdoor Unit----------------------------------------------- 19
10 Printed Circuit Board ------------------------------------------ 20
10.1. Indoor Unit ------------------------------------------------- 20
10.2. Outdoor Unit----------------------------------------------- 22
11 Installation Instruction ---------------------------------------- 23
11.1. Select The Best Location ------------------------------ 23
11.3. Indoor Unit ------------------------------------------------- 24
11.4. Outdoor Unit----------------------------------------------- 27
12 Operation and Control ---------------------------------------- 30
12.1. Basic Function -------------------------------------------- 30
12.2. Protection Control---------------------------------------- 37
© 2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0705021C2
Air Conditioner
PAGE

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Summary of Contents for Panasonic CS-NE7GKE

  • Page 1: Table Of Contents

    12 Operation and Control ---------------------------------------- 30 8 Wiring Connection Diagram ---------------------------------16 12.1. Basic Function -------------------------------------------- 30 8.1. Indoor Unit--------------------------------------------------16 12.2. Protection Control---------------------------------------- 37 © 2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd. (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 2: Safety Precaution

    13 Servicing Mode -------------------------------------------------- 41 15.1. Indoor Electronic Controllers, Cross Flow Fan 13.1. Auto OFF/ON Button ------------------------------------ 41 and Indoor Fan Motor Removal Procedures------ 47 13.2. Select Remote Control Transmission Code ------- 42 15.2. Outdoor Electronic Controller Removal 13.3. Remote Control Button --------------------------------- 42 Procedure-------------------------------------------------- 51 14 Troubleshooting Guide---------------------------------------- 43 16 Technical Data --------------------------------------------------- 52...
  • Page 3 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 4: Specifications

    2 Specifications 2.1. CS-NE7GKE CU-NE7GKE ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition EUROVENT 2.05 (0.60 ~ 2.40) Capacity kCal/h 1760 (520 ~ 2060) 4.46 (5.00 ~ 4.29) kCal/hW 3.83 (4.33 ~ 3.68) dB (A) High 37, Low 24, Q-Lo 21...
  • Page 5 ITEM UNIT INDOOR UNIT OUTDOOR UNIT Fin Material Aluminium (Pre Coat) Aluminium Fin Type Slit Fin Corrugated Fin Heat Exchanger Row x Stage x FPI 2 x 15 x 21 2 x 24 x 17 36.4 x 504 x 713 Size (W x H x L) 610 x 315 x 25.4 Material...

  • Page 6: Cs-Ne9Gke Cu-Ne9Gke

    2.2. CS-NE9GKE CU-NE9GKE ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition EUROVENT 2.60 (0.60 ~ 3.00) Capacity kCal/h 2240 (520 ~ 2580) 4.41 (5.00 ~ 4.00) kCal/hW 3.80 (4.33 ~ 3.44) dB (A) High 39, Low 26, Q-Lo 23 High 46 Noise Level Power level dB...
  • Page 7 ITEM UNIT INDOOR UNIT OUTDOOR UNIT Fin Material Aluminium (Pre Coat) Aluminium Fin Type Slit Fin Corrugated Fin Heat Exchanger Row x Stage x FPI 2 x 15 x 21 2 x 24 x 17 36.4 x 504 x 713 Size (W x H x L) 610 x 315 x 25.4 Material...

  • Page 8: Cs-Ne12Gke Cu-Ne12Gke

    2.3. CS-NE12GKE CU-NE12GKE ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition EUROVENT 3.50 (0.60 ~ 4.00) Capacity kCal/h 3010 (520 ~ 3440) 3.80 (5.00 ~ 3.39) kCal/hW 3.27 (4.33 ~ 2.92) dB (A) High 42, Low 29, Q-Lo 26 High 48 Noise Level Power level dB...
  • Page 9 ITEM UNIT INDOOR UNIT OUTDOOR UNIT Fin Material Aluminium (Pre Coat) Aluminium Fin Type Slit Fin Corrugated Fin Heat Exchanger Row x Stage x FPI 2 x 15 x 21 2 x 24 x 17 36.4 x 504 x 713 Size (W x H x L) 610 x 315 x 25.4 Material...

  • Page 10: Features

    3 Features • Product • Serviceability Improvement - Four modes of operation selection - Removable and washable Front Panel - Powerful mode to reach the desired room temperature - Breakdown Self Diagnosis function quickly with full power and a strong airflow - Quiet mode to provide a quiet environment by reducing •...

  • Page 11: Location Of Controls And Components

    4 Location of Controls and Components 4.1. Product Overview 4.1.1. Indoor Unit 4.1.2. Outdoor Unit 4.1.3. Remote Control...

  • Page 12: Dimensions

    5 Dimensions 5.1. Indoor Unit...

  • Page 13: Outdoor Unit

    5.2. Outdoor Unit...

  • Page 14: Refrigeration Cycle Diagram

    6 Refrigeration Cycle Diagram Piping size Rated Common Max. Min. Piping Max. Piping Additional Model Length Length Elevation Length Length Refrigerant Liquid (g/m) NE7GK, NE9GK 3/8” 1/4” NE12GK 1/2” 1/4” If piping length is over common length, additional refrigerant should be added as shown in the table.

  • Page 15: Block Diagram

    7 Block Diagram...

  • Page 16: Wiring Connection Diagram

    8 Wiring Connection Diagram 8.1. Indoor Unit...

  • Page 17: Outdoor Unit

    8.2. Outdoor Unit...

  • Page 18: Electronic Circuit Diagram

    9 Electronic Circuit Diagram 9.1. Indoor Unit...

  • Page 19: Outdoor Unit

    9.2. Outdoor Unit...

  • Page 20: Printed Circuit Board

    10 Printed Circuit Board 10.1. Indoor Unit 10.1.1. Main Printed Circuit Board...
  • Page 21 10.1.2. Power Printed Circuit Board 10.1.3. Indicator Panel...

  • Page 22: Outdoor Unit

    10.2. Outdoor Unit 10.2.1. Main Printed Circuit Board...

  • Page 23: Installation Instruction

    11 Installation Instruction 11.1. Select The Best Location 11.2. Indoor/Outdoor Unit INDOOR UNIT Installation Diagram • There should not be any heat source or steam near the unit. • There should not be any obstacles blocking the air circulation. • A place where air circulation in the room is good. •...

  • Page 24: Indoor Unit

    11.3. Indoor Unit 11.3.1. HOW TO FIX INSTALLATION PLATE 11.3.2. TO DRILL A HOLE IN THE WALL The mounting wall is strong and solid enough to prevent it from INSTALL SLEEVE the vibration. PIPING 1. Insert the piping sleeve to the hole. 2.
  • Page 25 3. For the embedded piping (This can be used for left rear piping and left bottom piping also.)
  • Page 26 11.3.4. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 × 1.5 mm flexible cord, type designation 245 IEC 57 or heavier cord.

  • Page 27: Outdoor Unit

    11.4. Outdoor Unit 11.4.1. INSTALL THE OUTDOOR UNIT • After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider strong wind and earthquake.

  • Page 28: Evacuation Of The Equipment

    11.4.3. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. •...

  • Page 29: Pipe Insulation

    11.4.5. PIPE INSULATION 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above.

  • Page 30: Operation And Control

    12 Operation and Control 12.1. 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 31: Automatic Operation

    12.1.5. Automatic Operation • This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, 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 32: Indoor Fan Motor Operation

    12.1.7. Indoor Fan Motor Operation A. Basic Rotation Speed i. Manual Fan Speed [Cooling, Dry] • Fan motor’s number of rotation is determined according to remote control setting. Remote Control — — — — — PSHi SSLo [Heating] • Fan motor’s number of rotation is determined according to remote control setting. Remote Control —...

  • Page 33: Outdoor Fan Motor Operation

    12.1.8. Outdoor Fan Motor Operation Outdoor fan motor is operated with 15 fan speed number of rotations. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation. 12.1.9. Airflow Direction 1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes). 2.
  • Page 34 12.1.9.2. Horizontal Airflow • The horizontal airflow direction louvers can be adjusted manually by hand. 12.1.10. 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 •...

  • Page 35: Powerful Mode Operation

    12.1.12. Powerful Mode Operation When the powerful mode is selected, the internal setting temperature will shift higher up to 3.5°C (Heating Operation) or lower up to 2°C (Cooling/Soft Dry Operation) than remote control setting temperature for 20 minutes to achieve the setting temperature quickly. 12.1.13.
  • Page 36 12.1.17. +8/10°C Heat Operation 1. This +8/10°C Heat mode is designed to provide heating at low setting temperature in unoccupied houses during winter for the purpose of protecting equipments or housing appliances which may be destroyed by the extreme cold weather. 2.

  • Page 37: Protection Control

    12.2. Protection Control 12.2.1. Protection Control For All Operations 12.2.1.1. Time Delay Safety Control 1. The compressor will not start for 3 minutes after stop of the operation. 2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition. 12.2.1.2.
  • Page 38 12.2.1.5. Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. If compressor discharge temperature exceeds 110°C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.

  • Page 39: Outdoor Air Temperature Control

    12.2.2. Protection Control For Cooling & Soft Dry Operation 12.2.2.1. 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 1 minute after the compressor starts. 12.2.2.2.
  • Page 40 12.2.3. Protection Control For Heating Operation 12.2.3.1. Intake Air Temperature Control Compressor will operate at Max freq. if either one of the below conditions occur: 1. When the indoor intake air temperature is 30°C or above. 12.2.3.2. Outdoor Air Temperature Control •...

  • Page 41: Servicing Mode

    13 Servicing Mode 13.1. Auto OFF/ON Button This button is used to pump doen the air conditioner during servicing or transferring of outdoor unit. 1. It can be used to operate air conditioner in limited function if remote control is misplaced or malfunction. •...

  • Page 42: Select Remote Control Transmission Code

    Mode is in standby condition) and press “AC Reset” button and then press “Check” button at remote control. Press “Auto OFF/ON button” to toggle remote control receiving sound. - Short “beep”: Turn OFF remote control receiving sound. - Long “beep”: Turn ON remote control receiving sound. After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is restarted.

  • Page 43: Troubleshooting Guide

    14 Troubleshooting Guide 14.1. Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right.
  • Page 44 14.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air Electric current Electric current Low Pressure High Pressure Low Pressure High Pressure conditioner during operating during operating Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer...

  • Page 45: Breakdown Self Diagnosis Function

    14.2. Breakdown Self Diagnosis Function 14.2.1. Self Diagnosis Function (Three Digits Alphanumeric Code) • Once abnormality has occurred during operation, the unit 7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or will stop its operation, and Timer LED blinks.

  • Page 46: Error Codes Table

    14.3. Error Codes Table Diagnosis Abnormality Emergency Primary location to verify Abnormality / Protection control display Judgement operation No abnormality detected — Normal operation Indoor / outdoor abnormal > 1 min after starting Indoor fan operation • Internal / external cable connections communication operation only...

  • Page 47: Disassembly And Assembly Instructions

    15 Disassembly and Assembly Instructions High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 15.1. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 15.1.1.
  • Page 48 • Press the Hold to the right side, remove the Particular Piece and slide out the Main Electronic Controller (Fig. 4). Fig. 4 • Release the CN-DATA. (Fig. 5) • Release the CN-TH. (Fig.5) • Release the CN-STM1. (Fig.5) Fig. 5 15.1.3.
  • Page 49 15.1.4. To remove the Discharge Grille • Pull out the Drain Hose (behind the Discharge Grille) from outlet to remove the Discharge Grille. (Fig. 8) Fig. 8 15.1.5. To remove the Control Board • Release the 3 screws. (Fig. 9) •...
  • Page 50 • Lift up the Evaporator and remove the Cross Flow Fan from the unit by pulling it to the left and downward. Fan Motor can be removed after the removal of the Cross Flow Fan (Fig. 12) Fig. 12...

  • Page 51: Outdoor Electronic Controller Removal Procedure

    15.2. Outdoor Electronic Controller Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 3 screws of the Top Panel. 5. Remove the Control Board as follows: Fig. 1 Fig. 4 2. Remove the 6 screws of the Front Panel. Fig.

  • Page 52: Technical Data

    16 Technical Data 16.1. Operation Characteristics 16.1.1. CS-NE7GKE CU-NE7GKE A. Cool: Outdoor Temperature Change Indoor Temp.: 27/19°C Remote Con.: HI FAN, COOL 16°C Comp. Hz: Rated Cooling Voltage: 230 V...
  • Page 54 B. Cool: Piping Length Change Indoor Temp.: 27/19°C, 35/-°C Remote Con.: HI FAN, COOL 16°C Comp. Hz: Rated Cooling Voltage: 230 V...
  • Page 56 C. Heat: Outdoor Temperature Change Indoor Temp.: 20/-°C Remote Con.: HI FAN, HEAT 30°C Comp. Hz: Rated Heating Voltage: 230 V...
  • Page 58 D. Heat: Piping Length Change Indoor Temp.: 20/-°C, 7/6°C Remote Con.: HI FAN, HEAT 30°C Comp. Hz: Rated Heating Voltage: 230 V...
  • Page 60 16.1.2. CS-NE9GKE CU-NE9GKE A. Cool: Outdoor Temperature Change Indoor Temp.: 27/19°C Remote Con.: HI FAN, COOL 16°C Comp. Hz: Rated Cooling Voltage: 230 V...
  • Page 62 B. Cool: Piping Length Change Indoor Temp.: 27/19°C, 35/-°C Remote Con.: HI FAN, COOL 16°C Comp. Hz: Rated Cooling Voltage: 230 V...
  • Page 64 C. Heat: Outdoor Temperature Change Indoor Temp.: 20/-°C Remote Con.: HI FAN, HEAT 30°C Comp. Hz: Rated Heating Voltage: 230 V...
  • Page 66 D. Heat: Piping Length Change Indoor Temp.: 20/-°C, 7/6°C Remote Con.: HI FAN, HEAT 30°C Comp. Hz: Rated Heating Voltage: 230 V...
  • Page 68 16.1.3. CS-NE12GKE CU-NE12GKE A. Cool: Outdoor Temperature Change Indoor Temp.: 27/19°C Remote Con.: HI FAN, COOL 16°C Comp. Hz: Rated Cooling Voltage: 230 V...
  • Page 70 B. Cool: Piping Length Change Indoor Temp.: 27/19°C, 35/-°C Remote Con.: HI FAN, COOL 16°C Comp. Hz: Rated Cooling Voltage: 230 V...
  • Page 72 C. Heat: Outdoor Temperature Change Indoor Temp.: 20/-°C Remote Con.: HI FAN, HEAT 30°C Comp. Hz: Rated Heating Voltage: 230 V...
  • Page 74 D. Heat: Piping Length Change Indoor Temp.: 20/-°C, 7/6°C Remote Con.: HI FAN, HEAT 30°C Comp. Hz: Rated Heating Voltage: 230 V...

  • Page 76: Sensible Capacity Chart

    16.2. Sensible Capacity Chart CS-NE7GKE CU-NE7GKE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.03 1.54 0.42 1.90 1.48 0.45 1.77 1.42 0.48 1.61 1.35 0.52 19.0°C 2.05 0.46 19.5°C 2.23 1.61 0.43 2.09 1.55 0.46 1.94 1.49 0.49 1.77...

  • Page 77: Exploded View And Replacement Parts List

    17 Exploded View and Replacement Parts List 17.1. Indoor Unit 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 REF. NO. PART NAME & DESCRIPTION QTY. CS-NE7GKE CS-NE9GKE CS-NE12GKE REMARKS ← ← CHASSY COMPLETE CWD50C1513 ← ← FAN MOTOR ARW61F8P30AC ← ← CROSS FLOW FAN COMPLETE CWH02C1045 ← ← BEARING ASSY CWH64K007 ← ← SCREW - CROSS FLOW FAN...

  • Page 79: Outdoor Unit

    17.2. Outdoor Unit 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 80 REF. NO. PART NAME & DESCRIPTION QTY. CU-NE7GKE CU-NE9GKE CU-NE12GKE REMARKS ← ← CHASSY ASSY CWD50K2140 ← ← ANTI - VIBRATION BUSHING CWH50077 ← ← COMPRESSOR, DC 220V 5CS110XBD04 ← ← NUT - COMPRESSOR MOUNT CWH56000J ← ← CRANKCASE HEATER CWA341026 ←...
  • Page 81 REF. NO. PART NAME & DESCRIPTION QTY. CU-NE7GKE CU-NE9GKE CU-NE12GKE REMARKS ← ← STRAINER CWB111004 ← ← FLARE NUT (1/4”) CWT251030 ← FLARE NUT (3/8”) (1/2”) CWT251031 CWT251032 (NOTE) • All parts are supplied from PHAAM, Malaysia (Vendor Code: 061). •...

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