Panasonic CS-NZ9SKE Service Manual
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Panasonic CS-NZ9SKE Service Manual

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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
R32 REFRIGERANT – This Air Conditioner contains and operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the
installation, maintenance and/or service of this product.
WARNING
PRECAUTION OF LOW TEMPERATURE
CAUTION
Order No: PAPAMY1607071CE
Indoor Unit
CS-NZ9SKE
CS-NZ12SKE
CS-QZ9SKE
© Panasonic Corporation 2016
Outdoor Unit
CU-NZ9SKE
CU-NZ12SKE
CU-QZ9SKE
Destination
North Europe

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Summary of Contents for Panasonic CS-NZ9SKE

  • Page 1 R32 REFRIGERANT – This Air Conditioner contains and operates with refrigerant R32. THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL. Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product. © Panasonic Corporation 2016...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE PAGE Safety Precautions ..........3 14.8 Timer Control ..........68         14.9 Auto Restart Control ........68     Precaution for Using R32 Refrigerant ....6     14.10 Indication Panel ..........68     14.11 ECONAVI Operation........69 Specifications ...........

  • Page 3: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. ...
  • Page 4 WARNING Do not perform flare connection inside a building or dwelling or room, when joining the heat exchanger of indoor unit with interconnecting piping. Refrigerant connection inside a building or dwelling or room must be made by brazing or welding. Joint connection of indoor unit by flaring method can only be made at outdoor or at outside of a building or dwelling or room.
  • Page 5 CAUTION Do not touch the sharp aluminium fin, sharp parts may cause injury. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture. Select an installation location which is easy for maintenance. Incorrect installation, service or repair of this air conditioner may increase the risk of rupture and this may result in loss damage or injury and/or property.

  • Page 6: Precaution For Using R32 Refrigerant

    2. Precaution for Using R32 Refrigerant  The basic installation work procedures are the same as conventional refrigerant (R410A, R22) models. However, pay careful attention to the following points: WARNING Since the working pressure is higher than that of refrigerant R22 models, some of the piping and installation and service tools are special.
  • Page 7 CAUTION 2-5. No ignition sources  No person carrying out work in relation to a refrigeration system which involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. He/She must not be smoking when carrying out such work.
  • Page 8 CAUTION Leak detection methods  Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re- calibration. (Detection equipment shall be calibrated in a refrigerant-free area.)  Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. ...
  • Page 9 CAUTION Labelling  Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant.  The label shall be dated and signed.  Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant. Recovery ...

  • Page 10: Specifications

    3. Specifications Indoor CS-NZ9SKE CS-NZ12SKE Model Outdoor CU-NZ9SKE CU-NZ12SKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 2.50 3.00 0.85 3.50 4.00 Capacity BTU/h 2900 8530 10200 2900...
  • Page 11 Indoor CS-NZ9SKE CS-NZ12SKE Model Outdoor CU-NZ9SKE CU-NZ12SKE Type Hermetic Motor (Rotary) Hermetic Motor (Rotary) Compressor Motor Type Brushless (4-poles) Brushless (4-poles) Output Power Type Cross-Flow Fan Cross-Flow Fan Material ASG20K1 ASG20K1 Motor Type DC / Transistor (8-poles) DC / Transistor (8-poles) Input Power 47.3...
  • Page 12 Indoor CS-NZ9SKE CS-NZ12SKE Model Outdoor CU-NZ9SKE CU-NZ12SKE Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8) Standard length m (ft) 5.0 (16.4) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 20 (65.6) 3 (9.8) ~ 20 (65.6)
  • Page 13 Indoor CS-QZ9SKE Model Outdoor CU-QZ9SKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.85 2.50 3.00 Capacity BTU/h 2900 8530 10200 Kcal/h 2150 2580 Running Current – 2.45 – Input Power Annual Consumption – – 5.00 4.90 4.29...
  • Page 14 Indoor CS-QZ9SKE Model Outdoor CU-QZ9SKE Type Hermetic Motor (Rotary) Compressor Motor Type Brushless (4 poles) Output Power Type Cross-Flow Fan Material ASG20K1 Motor Type DC / Transistor (8-poles) Input Power 47.3 Output Power Cool Heat Cool Heat Cool Speed Heat 1030 Cool 1100...
  • Page 15 Indoor CS-QZ9SKE Model Outdoor CU-QZ9SKE Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) Standard length m (ft) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 20 (65.6) I/D & O/D Height different m (ft) 10.0 (32.8) Additional Gas Amount...

  • Page 16: Features

    4. Features  Inverter Technology Wider output power range Energy saving Quick Cooling Quick Heating More precise temperature control  Environment Protection Non-ozone depletion substances refrigerant (R32)  Long Installation Piping Long piping up to 20 meters during single split connection only ...

  • Page 17: Location Of Controls And Components

    5. Location of Controls and Components Indoor Unit Front panel Aluminium fin Auto OFF/ON button Use when remote control is misplaced or a malfunction occurs. Horizontal airflow direction louver Manually adjustable. Sunlight Sensor and Remote Control Receiver Human activity sensor Vertical airflow direction louver Do not adjust by hand.

  • Page 18: Dimensions

    6. Dimensions Indoor Unit <Top View> <Side View> <Front View> <Side View> Air intake direction 2 ±0.5 2 ±0.5 Left piping Air outlet Right piping hole direction hole <Remote Control> <Bottom View> Gas side <Rear View> Liquid side <Remote Control Holder> (41-61) Relative position between the indoor unit and the installation plate <Front View>...

  • Page 19: Outdoor Unit

    Outdoor Unit <Top View> Space necessary for 823.4 68.5 installation 21.9 (124) 53.4 10 cm 10 cm 100 cm Anchor Bolt Pitch 330 x 540 2-way valve at Liquid side (High Pressure) 3-way valve at Gas side (Low Pressure) <Side View> <Side View>...

  • Page 20: Refrigeration Cycle Diagram

    7. Refrigeration Cycle Diagram INDOOR OUTDOOR LIQUID EXPANSION TEMP. SIDE VALVE MUFFLER STRAINER SENSOR 2-WAY VALVE PIPE TEMP. INTAKE SENSOR 2 TEMP. SENSOR CONDENSER PIPE TEMP. PIPE SENSOR 1 TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE 4-WAYS VALVE 3-WAY MUFFLER VALVE TANK SENSOR COMPRESSOR...

  • Page 21: Block Diagram

    8. Block Diagram...

  • Page 22: Wiring Connection Diagram

    9. Wiring Connection Diagram Indoor Unit FOR OUTDOOR POWER SUPPLY CONNECTION GROUNDING TERMINAL TERMINAL BOARD (SW01) ELECTRONIC CONTROLLER FOR INDOOR POWER SUPPLY CONNECTION (MAIN) ELECTRONIC CONTROLLER (SUB) GROUNDING TERMINAL 20A 250V 20A 250V ACN501 ACN502 ACL501 AC306 TERMINAL FUSE500 FUSE501 UP DOWN (GRAY) (WHITE)

  • Page 23: Outdoor Unit

    Outdoor Unit YELLOW (YLW) REMARKS: BLACK: (BLK) BLUE: (BLU) FOR OUTDOOR POWER WHITE: (WHT) RED: (RED) BLUE (BLU) RED (RED) SUPPLY CONNECTION YELLOW: (YLW) GRAY: (GRY) (TRADEMARK) GREEN: (GRN) BROWN: (BRW) SINGLE PHASE TO INDOOR UNIT COMPRESSOR TERMINAL ORANGE: (ORG) POWER SUPPLY (BLK) (WHT)

  • Page 24: Electronic Circuit Diagram

    10. Electronic Circuit Diagram 10.1 Indoor Unit FOR OUTDOOR POWER SUPPLY CONNECTION ELECTRONIC GROUNDING TERMINAL CONTROLLER TERMINAL (MAIN) BOARD NONE NONE FOR INDOOR POWER SUPPLY CONNECTION ELECTRONIC CONTROLLER (SUB) GROUNDING TERMINAL 20A 250V 20A 250V ACN501 ACN502 ACL501 AC306 TERMINAL (SW01) FUSE500 FUSE501...

  • Page 25: Outdoor Unit

    10.2 Outdoor Unit FOR OUTDOOR POWER SUPPLY CONNECTION SINGLE PHASE TO INDOOR UNIT POWER SUPPLY (BLK) (WHT) (RED) REACTOR TERMINAL (BLK) (WHT) (RED) BOARD RAT2 RAT1 ELECTRONIC CONTROLLER (GRY) (GRY) 15.8k 15.0k 220u DATA (RED) OUTDOOR AIR TEMP. COMMUNICATION SENSOR (THERMISTOR) NOISE FILTER CIRCUIT AC-BLK...

  • Page 26: Printed Circuit Board

    11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board AC303 CN-FM CN-CNT CN-STM1 CN-STM3 CN-DISP CN-RMT CN-RCV CN-TH JP1 (Random Auto Restart enable/disable)
  • Page 27 11.1.2 Indicator Printed Circuit Board LED205 LED203 LED201 LED206 LED204 LED202 CN-DISP 11.1.3 Receiver Printed Circuit Board CN-RCV 11.1.4 Sub Printed Circuit Board ACL501 ACN501 AC306 ACN502...

  • Page 28: Outdoor Unit

    11.2 Outdoor Unit POWER TRANSISTOR (IPM) CURRENT TRANSFORMER CN-TANK (CT) CN-MTR1 CN-TH1 CN-STM CN-HOT AC-WHT AC-BLK CN-MTR2 DATA...

  • Page 29: Installation Instruction

    12. Installation Instruction 12.1 Select the Best Location 12.1.1 Indoor Unit 12.1.3 Indoor/Outdoor Unit Installation  Diagram Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.  There should not be any heat source or steam WARNING near the unit.

  • Page 30: Indoor Unit

    12.2 Indoor Unit 12.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from vibration. Wall Wall Wall More than 1 More than 1 Indoor unit 2 screw More than Installation plate 1 266 mm PIPE For best strength of INDOOR...
  • Page 31 12.2.3 Indoor Unit Installation ● Do not turn over the unit without it’s shock absorber during pull out the piping. It may cause intake grille damage. ● Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Intake grille...

  • Page 32: Connect The Cable To The Indoor Unit

    Exchange the drain hose and the cap Rear view for left piping installation Connection cable Piping Drain hose More than 950 mm Connection cable Drain hose Drain cap Adjust the piping slightly Drain hose downwards. Sleeve for piping hole • •...
  • Page 33 Remove the tapes and connect the power supply cord and connection cable between indoor unit and outdoor unit according to the diagram below. Terminals on the outdoor unit Colour of wires (connection cable) Terminals on the indoor unit (Power supply cord) Terminals on the isolating devices (L) (N) (Disconnecting means)
  • Page 34 Terminal Control Board Board Earth Wire longer than Recommended others length (mm) AC wires for safety reason Holder a b c d Recommended length (mm) 50 40 35 60 Tape Indoor & outdoor connection cable Connection Outdoor unit cable Secure the connection cable onto the control board with the holder. WARNING This equipment must be properly earthed.

  • Page 35: Outdoor Unit

    12.3 Outdoor Unit 12.3.1 Install the Outdoor Unit  After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.

  • Page 36: Evacuation Of The Equipment

    AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 12.3.3 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. Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation. There is no extra refrigerant in the outdoor unit for air purging.

  • Page 37: Connect The Cable To The Outdoor Unit

    12.3.3.1 Cutting and Flaring the Piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. Please make flare after inserting the flare nut onto the copper pipes.

  • Page 38: Piping Insulation

    In case of outdoor power supply Cable connection to the power supply through Isolating Devices (Disconnecting means). Connect approved type polychloroprene sheathed power supply cord 3 x 1.5 mm type designation 60245 IEC 57 or heavier cord to the terminal board, and connect the others end of the cord to Isolating Devices (Disconnecting means).
  • Page 39 12.3.6 How to Take Out Front Grille Please follow the steps below to take out front grille if Screw necessary such as when servicing. Set the vertical airflow direction louvers to the Front grille horizontal position. Remove the 2 caps on the front grille as Vane shown in the illustration at right, and then (Move the vane...
  • Page 40 12.3.10 Check the Drainage  Open front panel and remove air filters. (Drainage checking can be carried out without removing the front grille.)  Pour a glass of water into the drain tray-styrofoam.  Ensure that water flows out from drain hose of the indoor unit.

  • Page 41: Installation And Servicing Air Conditioner Using R32

    13. Installation and Servicing Air Conditioner using R32 13.1 About R32 Refrigerant For air conditioning refrigerants such as R410A, the refrigerants were collected back in order to prevent their air dissipation, to curbe the global warming impact, in case they were released into the atmosphere. In the “4th Environmental Basic Plan”, 80% reduction of greenhouse gas emissions by 2050 is required, and due to this requirement, further reduction in the emission of high greenhouse effect gas, such as CFCs, is required.
  • Page 42 2. Characteristic of Pressure As shown in Table 2, R32 does not have much difference in vapor pressure at the same refrigerant temperature comparing to R410A, but comparing to R22, it is higher at 1.6 times more. Thus, the same as in case of R410A, it is necessary to do installation and service using high-pressure tools and components.

  • Page 43: Refrigerant Piping Installation • Tools Used In Services

    13.3 Refrigerant piping installation • Tools used in services 13.3.1 Required Tools R32 refrigerant air conditioners use the common parts as R410A air conditioners for two-way valves and three-way valves (diameters of service ports); thus, they maintain commonality in the maintenance of the compressive strength, the size of pipe flaring, and the size of flare nuts as R410A.
  • Page 44 3. Torque wrenches (diameters 1/2, 5/8) Manifold gauges / Charging hoses In order to strengthen the compressive strength, the diameters of wrenches change depending on the flare nut sizes. Torque wrenches Differences in charging hoses Differences in torque wrenches (common R410A) Normal 5.1 MPa 3.4 MPa...
  • Page 45 7. HFC refrigerant_Electric gas leakage tester 9. Refrigerant cylinders R32 refrigerant is often used for other mixed Refrigerant cylinders for R410A are painted in pink, refrigerant (R410A, R404A, R407C etc.). Therefore, and the ones for R32 are painted in other colors that the usage of existing HFC detectors is possible, but in might subject to change according to the international order to detect more accurately, we recommend to...
  • Page 46 11. Tools used for refrigerant piping installations and services Tools for R410A Common with R32 Possibility of usage for R22 ○ ○ Pipe cutters, reamers or scrapers ○ ○ Flare tools (clutch type) ○ ○ Torque wrench (1/4, 3/8) ○ ×...

  • Page 47: New Installation, Relocation, Repairing Of Refrigerant Cycle System The Procedures

    13.4 New installation, Relocation, Repairing of Refrigerant Cycle System The Procedures Relocation Repairing refrigerant cycle Installation Indoor / outdoor units and piping Pump down Refrigerant recovery • Displacing pipes and wires, and displacing indoor / outdoor units Prevention of impurity •...

  • Page 48: Piping Installation Of R32

    13.5 Piping installation of R32 13.5.1 Pipe materials used and flaring Copper pipes are used for refrigerant piping. Pipes Pipe thickness which comply with JIS Regulations need to be used. Room air conditioners which use R410A and R32 O and OL materials Thickness (mm) have higher pressure;...

  • Page 49: Installation, Relocation, And Service

    13.6 Installation, Relocation, and Service 13.6.1 Air purge and gas leak test for new installation (using new refrigerant pipes) using vacuum pump (From the point of view of global environment protection, do not release CFCs into the atmosphere during installation work) 1.
  • Page 50 13.6.2 Process of refrigerant recovery 1. Connect the center charging hose of manifold gauge to the in-let side of recovery device. 2. Connect the valves of the discharge side of recovery device and liquid side of refrigerant cylinder with red hose (charging hose).
  • Page 51 13.6.3 Relocation 1. Removing the air conditioning unit a) Recovery of outdoor unit refrigerant by pumping down Press “forced cooling button” (as a general rule, since 1998 the name of cooling testing button is changed, and this name is unified within the air conditioning industry), and then you are able to start cooling operation in which the room temperature is low, and you can recover the refrigerant from the outdoor unit.
  • Page 52 13.6.6 Re-insertion of refrigerant in service When re-insertion is needed, follow the procedures to ensure the insertion of new refrigerant at correct amount. 1. Attach charging hose (blue) to the service port of the outdoor unit. 2. Attach charging hose (red) to the vacuum pump. Fully open the 2-way and 3-way valves. 3.

  • Page 53: Repairing Of Refrigerant Cycle / Brazing Point

    13.7 Repairing of refrigerant cycle / Brazing point 13.7.1 Preparation for repairing of refrigerant cycle / brazing Brazing which is a technique needed for repairing refrigerant cycle requires advanced technique and experience, and this brazing procedure can only be performed by the workers who completed “Gas Welding Skill Training” regulated by the Occupational Safety and Health Act, and went through the training programs of refrigerant operations.
  • Page 54 2. Cylinder without adjustment valve side gauge pressure is adjusted by the adjuster. Check the both side valves of the torch and open the cylinder valve to check the remaining refrigerant in the cylinder. Caution: Do not attach oil component on the connection port of the adjuster. Especially, use an oxygen cylinder adjuster which is no oil substance type.
  • Page 55 13.7.5 Types of flame Types of flame change based on the proportion of propane and oxygen. [Neutral Flame] Perform brazing with this flame (This is a flame when oxygen and propane are mixed at proper proportion, and has lesser effect on the brazed metals) White core flame 10 ~ 15 mm...
  • Page 56 13.7.7 Selection of brazing material Use BAg brazing material (silver solder) to increase the welding performance. Tensile strength Composition of ingredients (%) Temperature (°C) Characteristics (Reference) Category Standard Brazing Base Number Solidus Liquidus Kgf•cm applications temp material Liquidity is good at low temperature, 49.0 14.5...
  • Page 57 13.7.10 Checking of brazing (insert) points 1. No impurity on the brazing point Gap 0.025 ~ 0.05 mm If dirt or oil is attached on the brazing point, the brazing filler metal does not reach to junction, and Inner diameter ø6.45 it may cause poor welding.
  • Page 58 (Reference) Melting temperature of copper • • • • • • • Approx. 1083°C Maximum temperature obtained in propane and oxygen • • • • • • • Approx. 1083°C The important point is to heat the bonding part uniformly within a short period of time until reaching to the brazing temperature in the following manner.

  • Page 59: Reference> Analysis Method For No Error Code, No Cooling / No Warming

    13.8 <Reference> Analysis method for no error code, no cooling / no warming 13.8.1 Preparation for appropriate diagnosis In order to obtain appropriate operation characteristics, minimum 15 minutes or more operation time [testing operation (rated operation)] is required. 1. Method of rated operation (rated operation) For the models which have two buttons of “emergency operation and forced cooling operation”, press forced cooling button once.
  • Page 60 1. Measuring temperature 1) Indoor unit suction temperature, release temperature, temperature difference, → Measure by thermometer 2) 2-way valve pipe temperature in cooling mode is low temperature (benchmark：5 ~ 10°C), in heating mode is medium temperature (benchmark：25 ~ 35°C). 3) 3-way valve pipe temperature in cooling mode is low temperature (benchmark：7 ~ 15°C) in heating mode is high temperature (benchmark：38 ~ 50°C).

  • Page 61: Operation Control

    14. Operation Control 14.1 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 62: Indoor Fan Motor Operation

    14.1.5 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature.  During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature.
  • Page 63 ii Auto Fan Speed [Cooling, Dry]  According to room temperature and setting temperature, indoor fan speed is determined automatically.  When set temperature is not achieved, the indoor fan will operate according to pattern below.  When set temperature achieved, the indoor fan speed will be fixed. When thermostat off, the fan stop periodically. [Heating] ...

  • Page 64: Outdoor Fan Motor Operation

    14.3 Outdoor Fan Motor Operation  It starts when compressor starts operation and it stops 30 seconds after compressor stops operation.  During cooling operation, and outdoor ambient temperature is below 8°C, outdoor fan speed will be controlled according to outdoor piping temperature as following: OD Pipe Temperature 26°C 33°C...

  • Page 65: Airflow Direction

    14.4 Airflow Direction  There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).  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 66 Closed Position Reference point 28° Reference point 128° 128° Step 1 Step 1 Step 2 Step 2 Step 3 Closed Step 3 Position Step 4 Step 4 Step 5 Step 5 Figure 2 14.4.2 Horizontal Airflow  Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below.

  • Page 67: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)

    14.5 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode)  Purpose To provide quiet cooling operation compare to normal operation.  Control condition Quiet operation start condition When “POWERFUL/QUIET” button at remote control is pressed twice.  QUIET will be shown on remote control display. Quiet operation stop condition ...

  • Page 68: Timer Control

    14.8 Timer Control  There are 2 sets of ON and OFF timer available to turn the unit ON or OFF at different preset time.  If more than one timer had been set, the upcoming timer will be displayed and will activate in sequence. 14.8.1 ON Timer Control ...

  • Page 69: Econavi Operation

    14.11 ECONAVI Operation  ECONAVI start condition: When ECONAVI button is pressed.  ECONAVI stop conditions: When ECONAVI button is pressed again. When unit is OFF by OFF/ON button. When unit is OFF when OFF TIMER activates. When unit is OFF by AUTO OFF/ON button at indoor unit. When POWERFUL, QUIET, +8/15°C Heat operation activates.
  • Page 70 14.11.3 Judge Sunlight Intensity  Based on sunlight sensor output voltage, the sunlight intensity value will be computed and logged to sunlight intensity database.  The sunlight sensor sensitivity could be adjusted: Remote control normal mode Press & release Press to choose No.2 TEMP Sensitivity Level 1: Less sensitive to sunlight intensity Default: (Battery insert)
  • Page 71 14.11.4 Judge Ambient Condition  According to sunlight intensity over a period of time, the system will analyze the ambient condition is sunny, cloudy or night. 14.11.5 Temperature Shift ECONAVI ; Detecting sunlight intensity, the unit adjust temperature to save energy. Ambient condition Night/Cloudy Mode...
  • Page 72  To disable sunlight sensor check mode After check mode is ended (5 minutes counter elapsed), press AUTO OFF/ON button at indoor unit. If the sunlight sensor detected sunlight intensity is at abnormal range, the check mode will be ended. Please check for error code.

  • Page 73: 8/15°C Heat Operation

    14.12 +8/15°C Heat Operation  +8/15°C Heat operation provides 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.  This operation can be ON by pressing the +8/15°C heat button on the remote control. ...

  • Page 74: Protection Control

    15. Protection Control 15.1 Protection Control for All Operations 15.1.1 Restart Control (Time Delay Safety Control)  The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. ...
  • Page 75 Compressor = OFF 103°C 88°C Compressor Frequency Reduce 99°C 87°C Compressor Frequency Limited 96°C 86°C Free Comp. temperature 15.1.5 Low Pressure Prevention Control (Gas Leakage Detection)  Control start conditions For 5 minutes, the compressor continuously operates and outdoor total current is between 0.75A and 0.95A, 1.38A.

  • Page 76: Protection Control For Cooling & Soft Dry Operation

    15.2 Protection Control for Cooling & Soft Dry Operation 15.2.1 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. ...

  • Page 77: Odor Cut Control

    15.2.6 Odor Cut Control  To reduce the odor released from the unit. Start Condition  AUTO FAN Speed is selected during COOL or DRY operation.  During freeze prevention control and timer preliminary operation, this control is not applicable. Control content ...

  • Page 78: Servicing Mode

    16. Servicing Mode 16.1 Auto OFF/ON Button 16.1.1 Mode setting by Emergency SW Emergency SW is Emergency SW is Emergency SW is Emergency SW is pressed pressed pressed pressed Forced Normal Forced Emergency Operation Cooling Cooling Heating Operation time check Operation Operation Operation...

  • Page 79: Remote Control Button

    REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 11 seconds (3 “beep” sounds will occur at 11th seconds to identify the Remote Control Number Switch Mode is in standby condition) and press “AC RESET” button and then press any button at remote control to transmit and store the desired transmission code to the EEPROM.
  • Page 80  Auto restart enable/disable selection Normal display mode Press SW to enter customer zone & press SW’s to choose function 10 Control Disable Transmit “Enable or Disable” code Control Enable 1 Press SW, special setting is immediately cancelled and normal mode starts. 2 If no SW is pressed for 30secs, then special setting mode is cancelled and normal mode starts.
  • Page 81  New Deice Judgement Selection Normal display mode Press SW (t 0secs) When SW pressed continuously for t 5secs to enter service zone & press SW’s to choose function 60 Switching = No Transmit “No or Yes” code Switching = Yes Note: By default is New Deice Judgement.

  • Page 82: Troubleshooting Guide

    17. Troubleshooting Guide 17.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no Normal Pressure and Outlet Air Temperature (Standard) electrical problems before inspecting the refrigeration cycle. Gas Pressure Outlet air Such problems include insufficient insulation, problem with the Temperature (kg/cm (°C)
  • Page 83 17.1.1 Relationship Between the Condition of the Air Conditioner and Pressure and Electric Current Cooling Mode Heating Mode Condition of the Electric current Electric current air conditioner Low Pressure High Pressure Low Pressure High Pressure during operation during operation Insufficient refrigerant ...

  • Page 84: Breakdown Self Diagnosis Function

    17.2 Breakdown Self Diagnosis Function 17.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  When the latest abnormality code on the main Once abnormality has occurred during operation, unit and code transmitted from the remote the unit will stop its operation, and Timer LED controller are matched, power LED will light blinks.

  • Page 85: Error Codes Table

    17.3 Error Codes Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation No memory of failure — Normal operation — — Indoor fan only  Indoor/outdoor wire terminal Indoor/outdoor operation can Indoor/outdoor After operation for ...
  • Page 86 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation  Check indoor/outdoor Wrong wiring and connection wire and connection Abnormal wiring or — — connecting pipe, expansion pipe piping connection valve abnormality  Expansion valve and lead wire and connector ...

  • Page 87: Self-Diagnosis Method

    17.4 Self-diagnosis Method 17.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused  Faulty indoor unit PCB.
  • Page 88 17.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit or outdoor unit PCBs mounted. ...
  • Page 89 17.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 90 17.4.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.  Faulty sensor.
  • Page 91 17.4.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions  An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused  Lack of gas  Broken CT (current transformer) ...
  • Page 92 17.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550 rpm or < 50 rpm) Malfunction Caused ...
  • Page 93 17.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 94 17.4.8 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 95 17.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 96 17.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 97 17.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 98 17.4.12 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit and outdoor unit PCBs used.  Indoor unit or outdoor unit PCB defective.
  • Page 99 17.4.13 H34 (Outdoor Heat Sink Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 100 17.4.14 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 101 17.4.15 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...

  • Page 102: Troubleshooting

    17.4.16 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused  Operation stops due to short circuit inside the fan motor winding. ...
  • Page 103 17.4.17 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions  Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
  • Page 104 17.4.18 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C) Malfunction Caused ...
  • Page 105 17.4.19 F11 (4-way Valve Switching Failure) Malfunction Decision Conditions  When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused ...
  • Page 106 17.4.20 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions  When the different between indoor intake air temperature and indoor pipe temperature is above 10°C or indoor pipe temperature is below -1.0°C. Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
  • Page 107 17.4.21 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  To maintain DC voltage level supply to power transistor.  To detect high DC voltage level after rectification. Malfunction Caused  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
  • Page 108 17.4.22 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused  Lack of gas.  3-way valve close. Troubleshooting...
  • Page 109 17.4.23 F93 (Compressor Rotation Failure) Malfunction Decision Conditions  A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused  Compressor terminal disconnect  Faulty Outdoor PCB  Faulty compressor Troubleshooting...
  • Page 110 17.4.24 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions  During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
  • Page 111 17.4.25 F96 (IPM Overheating) Malfunction Decision Conditions  During operating of cooling and heating, when IPM temperature data (100°C) is detected by the IPM temperature sensor. Multi Models only Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (90°C) is detected by the heat sink temperature sensor.
  • Page 112 17.4.26 F97 (Compressor Overheating) Malfunction Decision Conditions  During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the compressor tank temperature sensor. Malfunction Caused  Faulty compressor tank temperature sensor  2/3 way valve closed ...
  • Page 113 17.4.27 F98 (Input Over Current Detection) Malfunction Decision Conditions  During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.
  • Page 114 17.4.28 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused  DC current peak due to compressor failure. ...

  • Page 115: Disassembly And Assembly Instructions

    18. Disassembly and Assembly Instructions WARNING High Voltage is 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. 18.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 18.1.1...
  • Page 116 18.1.2 To Remove Electronic Controller 3 Hooks (Top, left and right hand side) Remove control board cover by releasing 3 hooks. Figure 2 Remove earth wires. Pull out the 10. Detach all connectors as labelled from the electronic electronic controller. Then pull out the controller halfway.
  • Page 117 18.1.3 To Remove Discharge Grille Remove the screw and pull out the HVU unit. HVU unit Figure 6 12. Pull out and remove the drain hose from the discharge grille. 13. Then pull the discharge grille downward gently to dismantle it. Figure 7 18.1.4 To Remove Control Board...

  • Page 118: To Remove Cross Flow Fan And Indoor Fan Motor

    18.1.5 To Remove Cross Flow Fan and Indoor Fan Motor Figure 9 17. Remove the bearing by pulling it gently. 16. Remove the screw from the evaporator. Figure 10...
  • Page 119 Evaporator 18. Push the holdfast to the left and lift up the evaporator. 20. Fan motor can be removed after Cross flow fan the removal of the cross flow fan. Reminder: To reinstall the fan motor, adjust the fan motor connector to 90° towards you before fixing control board.
  • Page 120 18.1.6 To Assemble the Front Grille Receiver PCB CAUTION Do not directly fix the front grille complete, to avoid hitting the Receiver PCB. Figure 13 Gently assemble the right side of the front grille first then fix the left side. Figure 14...
  • Page 121 18.1.7 To Assemble the Intake Grille Hook Intake Grille Align the intake grille hooks into the slot. Hook Place in the hook to the slot. Then slightly bend the intake grille and push in the hooks into the slot. Figure 15...

  • Page 122: Outdoor Electronic Controller Removal Procedure

    18.2 Outdoor Electronic Controller Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove the Control Board as follows: Fig. 1 Remove the 8 screws of the Front Panel. Fig.

  • Page 123: Technical Data

    Technical data provided are based on the air conditioner running under free frequency. 19.1 Cool Mode Performance Data Unit setting: Standard piping length, Hi Fan, Cool mode at 16°C Voltage: 230V 19.1.1 CS-NZ9SKE/CU-NZ9SKE CS-QZ9SKE/CU-QZ9SKE Indoor (°C) Outdoor DB (°C) 19.0 2841...

  • Page 124: Heat Mode Performance Data

    19.2 Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 30°C Voltage: 230V 19.2.1 CS-NZ9SKE/CU-NZ9SKE CS-QZ9SKE/CU-QZ9SKE Indoor (°C) Outdoor WB (°C) 2379 1484 3021 1675 3407 1578 3800 1400 4754 1595 2470 1377 3136 1550...

  • Page 125: Service Data

    Indoor room temperature: 27°C Dry Bulb/19°C Wet Bulb Unit setting: Standard piping length, forced cooling at 16°C, Hi fan Compressor frequency: Rated for cooling operation Piping length: 5m Voltage: 230V 20.1.1 CS-NZ9SKE CU-NZ9SKE CS-QZ9SKE CU-QZ9SKE 16.00 15.80 15.60 15.40 15.20 15.00...
  • Page 126 20.1.2 CS-NZ12SKE CU-NZ12SKE 15.00 14.50 14.00 13.50 13.00 12.50 12.00 11.50 11.00 10.50 10.00 Outdoor Air Temperature (°C) 5.00 4.50 4.00 3.50 3.00 2.50 2.00 Outdoor Air Temperature (°C) 1.05 1.00 0.95 0.90 0.85 0.80 Outdoor Air Temperature (°C)

  • Page 127: Heat Mode Outdoor Air Temperature Characteristic

    Indoor room temperature: 20°C Dry Bulb/ -°C Wet Bulb Unit setting: Standard piping length, forced heating at 30°C, Hi fan Compressor frequency: Rated for Heating operation Piping length: 5m Voltage: 230V 20.2.1 CS-NZ9SKE CU-NZ9SKE CS-QZ9SKE CU-QZ9SKE Outdoor Air Temperature (°C) 3.70 3.20 2.70 2.20 1.70...
  • Page 128 20.2.2 CS-NZ12SKE CU-NZ12SKE Outdoor Air Temperature (°C) 4.50 4.00 3.50 3.00 2.50 2.00 1.50 Outdoor Air Temperature (°C) Outdoor Air Temperature (°C)

  • Page 129: Piping Length Correction Factor

    20.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 20.3.1 CS-NZ9SKE CU-NZ9SKE CS-QZ9SKE CU-QZ9SKE CS-NZ12SKE CU-NZ12SKE 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Pipe Length (m) 1.10...

  • Page 130: Exploded View And Replacement Parts List

    21. Exploded View and Replacement Parts List 21.1 Indoor Unit CWH55025J CWH55051J 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 131 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-NZ9SKE CS-NZ12SKE REMARK CHASSIS COMPLETE ACXD50C00200 ← FAN MOTOR ARW7628ACCB ← CROSS-FLOW FAN COMPLETE CWH02C1076 ← BEARING ASSY CWH64K1010 ← SCREW - CROSS-FLOW FAN CWH551146 ← PARTICULAR PIECE CWD933067B ← EVAPORATOR ACXB30C01970...
  • Page 132 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-QZ9SKE REMARK CHASSIS COMPLETE ACXD50C00200 FAN MOTOR ARW7628ACCB CROSS-FLOW FAN COMPLETE CWH02C1076 BEARING ASSY CWH64K1010 SCREW - CROSS-FLOW FAN CWH551146 PARTICULAR PIECE CWD933067B EVAPORATOR ACXB30C01970 FLARE NUT (LIQUID) CWT251030 FLARE NUT (GAS) CWT251031 CONTROL BOARD CASING ACXH10-00200...

  • Page 133: Outdoor Unit

    21.2 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 134 STRAINER CWB11094 EXPANSION VALVE CWB051078 HEATER CWA341072 V-COIL COMPLETE - EXP. VALVE CWA43C2603 PANASONIC BADGE CWE373439 NORDIC HEATPUMP BADGE CWE373985 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock.
  • Page 135 STRAINER CWB11094 EXPANSION VALVE CWB051078 HEATER CWA341072 V-COIL COMPLETE CWA43C2603 PANASONIC BADGE CWE373439 NORDIC HEATPUMP BADGE CWE373985 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock.
  • Page 136 STRAINER CWB11094 EXPANSION VALVE CWB051078 HEATER CWA341072 V-COIL COMPLETE CWA43C2603 PANASONIC BADGE CWE373439 NORDIC HEATPUMP BADGE CWE373985 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock.

This manual is also suitable for:

Cs-qz9skeCu-qz9skeCu-nz9skeCs-nz12skeCu-nz12ske

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