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Panasonic CS-NZ35YKE Service Manual

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Please file and use this manual together with Wireless LAN Module Setup Instructions Order No ACXF55-3341*
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.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
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 National, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation,
maintenance and/or service of this product.
WARNING
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
CAUTION
Order No: PAPAMY2207015CE
Indoor Unit
CS-NZ25YKE
CS-NZ35YKE
CS-NZ50YKE
© Panasonic Corporation 2022
Outdoor Unit
CU-NZ25YKE
CU-NZ35YKE
CU-NZ50YKE
Destination
Europe
in the Schematic

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Summary of Contents for Panasonic CS-NZ35YKE

  • Page 1 – This Air Conditioner contains and operates with refrigerant R32. THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL. Refer to National, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product. © Panasonic Corporation 2022...

  • Page 2: Table Of Contents

    15.2 Protection Control for Cooling & Soft Dry 7. Refrigeration Cycle Diagram ......22 Operation ............89 15.3 Protection Control for Heating Operation ...91 CS-NZ25YKE CU-NZ25YKE CS-NZ35YKE CU-NZ35YKE ..... 22 16. Servicing Mode ..........92 CS-NZ50YKE CU-NZ50YKE ..... 23 16.1 Auto OFF/ON Button ........92 8. Block Diagram ..........24 16.2...

  • Page 3: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Confirm the type of gas used before installation.  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 to be installed.
  • Page 4 WARNING  For R32/R410A model, use piping, flare nut and tools which is specified for R32/R410A refrigerant. Using of existing (R22) piping, flare nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. For R32 and R410A, the same flare nut on the outdoor unit side and pipe can be used.
  • 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  Pay careful attention to the following precaution points and the installation work procedures. WARNING When connecting flare at indoor side, make sure that the flare connection is used only once, if torqued up and released, the flare must be remade.
  • Page 7 CAUTION General  Must ensure the installation of pipe-work shall be kept to a minimum. Avoid use dented pipe and do not allow acute bending.  Must ensure that pipe-work shall be protected from physical damage.  Must comply with national gas regulations, state municipal rules and legislation. Notify relevant authorities in accordance with all applicable regulations.
  • Page 8 CAUTION 2-10. Checks to electrical devices  Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures.  Initial safety checks shall include but not limit to:- That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking. That there is no live electrical components and wiring are exposed while charging, recovering or purging the system.
  • Page 9 CAUTION Removal and evacuation  When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to: •...
  • Page 10 CAUTION Recovery  When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely.  When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. ...

  • Page 11: Specifications

    3. Specifications Indoor CS-NZ25YKE CS-NZ35YKE Model Outdoor CU-NZ25YKE CU-NZ35YKE 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 12 Indoor CS-NZ25YKE CS-NZ35YKE Model Outdoor CU-NZ25YKE CU-NZ35YKE Type Hermetic Motor (Rotary) Hermetic Motor (Rotary) Compressor Motor Type Brushless (6-poles) Brushless (6-poles) Output Power Type Cross-Flow Fan Cross-Flow Fan Material ASG30 ASG30 Motor Type DC / Transistor (8-poles) DC / Transistor (8-poles) Input Power 47.1...
  • Page 13 Indoor CS-NZ25YKE CS-NZ35YKE Model Outdoor CU-NZ25YKE CU-NZ35YKE Pipe Diameter (Liquid / mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8) Gas) 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 14 Indoor CS-NZ50YKE Model Outdoor CU-NZ50YKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.98 5.00 6.10 Capacity BTU/h 3340 17100 20800 Kcal/h 4300 5250 Running Current – 5.70 – Input Power 1.30k 1.91k Annual Consumption –...
  • Page 15 Indoor CS-NZ50YKE Model Outdoor CU-NZ50YKE Type Hermetic Motor (Rotary) Compressor Motor Type Brushless (6-poles) Output Power Type Cross-Flow Fan Material ASG30 Motor Type DC / Transistor (8-poles) Input Power 74.0 Output Power Cool Heat Cool Heat Cool Speed Heat 1010 Cool 1050 Heat...
  • Page 16 Indoor CS-NZ50YKE Model Outdoor CU-NZ50YKE Pipe Diameter (Liquid / mm (inch) 6.35 (1/4) / 12.70 (1/2) Gas) 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) 15.0 (49.2) Additional Gas Amount...

  • Page 17: 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 18: Location Of Controls And Components

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

  • Page 19: Dimensions

    6. Dimensions Indoor Unit 6.1.1 CS-NZ25YKE CS-NZ35YKE <Top View> <Side View> <Front View> <Side View> Air intake direction Left piping Air outlet Right piping hole direction <Bottom View> hole <Remote Control> <Rear View> Gas side Liquid side <Remote Control Holder>...
  • Page 20 6.1.2 CS-NZ50YKE <Top View> <Side View> <Front View> <Side View> Air intake 1040 direction Left piping Air outlet Right piping hole direction hole <Bottom View> <Remote Control> <Rear View> Liquid side Gas side <Remote Control Holder> 41-61 63.37 Relative position between the indoor unit and the installation plate <Front View> 748.4 14.9 Installation...

  • Page 21: Outdoor Unit

    Outdoor Unit 6.2.1 CU-NZ25YKE CU-NZ35YKE <Top View> Space necessary for 68.5 installation 21.9 (124) 53.4 100 mm 100 mm 1000 mm Anchor Bolt Pitch 330 x 540 2-way valve at Liquid side (High Pressure) 3-way valve at Gas side (Low Pressure) <Side View>...

  • Page 22: Refrigeration Cycle Diagram

    7. Refrigeration Cycle Diagram CS-NZ25YKE CU-NZ25YKE CS-NZ35YKE CU-NZ35YKE 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...

  • Page 23: Cs-Nz50Yke Cu-Nz50Yke

    CS-NZ50YKE CU-NZ50YKE INDOOR OUTDOOR LIQUID EXPANSION TEMP. SIDE VALVE STRAINER SENSOR 2-WAY VALVE PIPE TEMP. INTAKE SENSOR 2 TEMP. SENSOR CONDENSER PIPE TEMP. PIPE SENSOR 1 TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE DISCHARGE 4-WAYS VALVE 3-WAY MUFFLER VALVE TANK SENSOR COMPRESSOR COOLING HEATING...

  • Page 24: Block Diagram

    8. Block Diagram...

  • Page 25: Wiring Connection Diagram

    9. Wiring Connection Diagram Indoor Unit 9.1.1 CS-NZ25YKE CS-NZ35YKE REMARKS : ELECTRONIC CONTROLLER (WIFI MODULE) FOR OUTDOOR POWER FOR INDOOR POWER : BLUE P : PINK SUPPLY CONNECTION SUPPLY CONNECTION CN-WLAN BR : BROWN O : ORANGE (BLK) BL : BLACK...
  • Page 26 9.1.2 CS-NZ50YKE REMARKS : ELECTRONIC CONTROLLER (WIFI MODULE) FOR OUTDOOR POWER FOR INDOOR POWER : BLUE P : PINK SUPPLY CONNECTION SUPPLY CONNECTION CN-WLAN BR : BROWN O : ORANGE (BLK) BL : BLACK Y : YELLOW TERMINAL TERMINAL W : WHITE G : GREEN BOARD BOARD...

  • Page 27: Outdoor Unit

    Outdoor Unit 9.2.1 CU-NZ25YKE CU-NZ35YKE FOR OUTDOOR POWER SUPPLY CONNECTION SINGLE PHASE O INDOOR UNIT POWER SUPPLY REACTOR TERMINAL BOARD OUTDOOR AIR TEMP. SENSOR (THERMISTOR) RAT2 RAT1 DATA (GRY) (GRY) (BLK) CN-TH1 (WHT) FUSE 4 FUSE 5 (20A 250V) (20A 250V) PIPING TEMP.
  • Page 28 9.2.2 CU-NZ50YKE FOR OUTDOOR POWER SUPPLY CONNECTION SINGLE PHASE O INDOOR UNIT POWER SUPPLY REACTOR TERMINAL BOARD OUTDOOR AIR TEMP. SENSOR (THERMISTOR) RAT2 RAT1 DATA (GRY) (GRY) (BLK) CN-TH1 (WHT) FUSE 4 FUSE 5 (20A 250V) (20A 250V) PIPING TEMP. SENSOR FUSE 1 AC-BRW (THERMISTOR)

  • Page 29: Electronic Circuit Diagram

    10. Electronic Circuit Diagram 10.1 Indoor Unit 10.1.1 CS-NZ25YKE CS-NZ35YKE ELECTRONIC CONTROLLER (WIFI MODULE) CN-WLAN (BLK) GR GR GR FOR OUTDOOR POWER FOR INDOOR POWER 12V_1 CN-WLAN SUPPLY CONNECTION SUPPLY CONNECTION (WHT) *C401 TERMINAL TERMINAL *R406 *F301 *R405 NONE BOARD...
  • Page 30 10.1.2 CS-NZ50YKE ELECTRONIC CONTROLLER (WIFI MODULE) CN-WLAN (BLK) GR GR GR FOR OUTDOOR POWER FOR INDOOR POWER 12V_1 CN-WLAN SUPPLY CONNECTION SUPPLY CONNECTION (WHT) *C401 TERMINAL TERMINAL *R406 *F301 *R405 NONE BOARD BOARD *C402 *C403 NONE NONE TEMP. FUSE 102°C 1000p 1000p *C56...

  • Page 31: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 CU-NZ25YKE CU-NZ35YKE REACTOR RAT2 RAT1 (GRY) (GRY) R202 R201 15.8k CN-TH1 (WHT) OUTDOOR AIR TEMP. SENSOR (THERMISTOR) NONE FOR OUTDOOR POWER NONE SUPPLY CONNECTION SINGLE PHASE O INDOOR UNIT POWER SUPPLY PIPING TEMP. SENSOR (THERMISTOR) TERMINAL CN-TANK BOARD (WHT)
  • Page 32 10.2.2 CU-NZ50YKE REACTOR RAT2 RAT1 (GRY) (GRY) R202 R201 15.8k CN-TH1 OUTDOOR AIR TEMP. SENSOR (WHT) (THERMISTOR) NONE NONE FOR OUTDOOR POWER SUPPLY CONNECTION SINGLE PHASE POWER SUPPLY O INDOOR UNIT PIPING TEMP. SENSOR (THERMISTOR) TERMINAL CN-TANK BOARD (WHT) DATA (BLK) R206 COMPRESSOR TEMP.

  • Page 33: Printed Circuit Board

    11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board AC303 CN-FM CN-NANO CN-CNT CN-WLAN CN-DISP CN-STM1 CN-RMT CN-TH CN-STM3 JP1 (Random Auto Restart enable/disable)
  • Page 34 11.1.2 Indicator Printed Circuit Board LED201 LED202 LED203 LED204 LED205 LED206 CN-DISP 11.1.3 High Voltage Power Supply Printed Board...
  • Page 35 11.1.4 WLAN Printed Circuit Board...

  • Page 36: Outdoor Unit

    11.2 Outdoor Unit 11.2.1 Main Printed Circuit Board POWER TRANSISTOR (IPM) CN-MTR2 CURRENT TRANSFORMER (CT) CN-STM1 CN-TANK CN-HOT AC-BLU CN-TH1 DATA AC-BRW...

  • Page 37: 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 up drain hose (Front side) near the unit.

  • Page 38: 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. Ceiling More than More than Wall Wall More than 2 screw Indoor unit 150 mm 247 mm 150 mm 150 mm TO HOLE...
  • Page 39 12.2.2 To Drill a Hole in the Wall and Install a Sleeve of Piping Insert the piping sleeve to the hole. Wall Fix the bushing to the sleeve. Indoor Outdoor 15 mm Cut the sleeve until it extrudes about 15 mm Approx.
  • Page 40 12.2.3 Indoor Unit Installation Pull out the Indoor piping ● 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 41 Change the drain hose position Rear view for left piping installation Connection cable More than 950 mm (1.0 ~ 1.5HP) or Piping More than 1150 mm (2.0HP) Drain hose Drain cap Sleeve for piping hole Drain hose • • How to pull the piping and drain hose out, in case of the In case of left piping how to insert the embedded piping.
  • Page 42 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 43 Terminal Tape Board Earth Connection cable Wire longer Recommended than length (mm) 40 40 50 70 others Holder AC wires for safety reason Recommended length (mm) Indoor & outdoor connection cable Outdoor Unit Secure the connection cable onto the control board with the holder. WARNING The image part with relationship ID rId54...

  • Page 44: 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 45 AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 12.3.3 Air Tightness Test on the Refrigerating System 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 46 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 47 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 (1.0 ~ 1.5HP), 3 x 2.5 mm (2.0HP) 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 48 12.3.6 How to Take Out Front Grille Please follow the steps below to take out front grille if necessary such as when installing or servicing. Set the vertical vane airflow direction louvers to the horizontal position. 2. Remove the 2 caps (1.0~1.5HP) or 3 caps (2.0HP) on the front grille as shown in the Illustration. Open front panel.
  • Page 49 12.3.8 Heating Only Operation Use remote controller to set heating only operation. When the unit in standby mode, follow the steps below: Press continuously for more than 5 seconds to enter special setting mode. Press to choose function 61, and then press to set “01”...
  • Page 50 12.3.12 How to Replace Network Adapter Remove the front grille (refer how to take out front grille) from the unit. Remove the indicator piece by releasing the hook. Remove 1 mounting screw, then remove the network adaptor holder. After that, network adaptor can be easily replaced. Indicator piece Network...

  • Page 51: 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 52 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 53: 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 54 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 55 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 56 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 57: New Installation, Relocation, Repairing Of Refrigerant Cycle System The Procedures

    13.4 New installation, Relocation, Repairing of Refrigerant Cycle System The Procedures...

  • Page 58: 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 59: 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 60 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 61 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 62 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 63: 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 64 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 65 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 66 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 67 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 68 (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 69: 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 70 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 71: 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 72: 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 73 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. [1 pattern : 10 s] Speed Higher Medium...

  • Page 74: 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. Compressor: Fan Speed Outdoor Fan: 30 sec  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 Temp.

  • Page 75: 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 76 3. If automatic control ( ) or automatic swing ( ) vane is selected, the inputs of the control are: mode of operation, inlet temperature, and heat exchanger temperature. 4. If manual vane is selected, the inputs are: Up-and-down vane actual signal. 58°C 50°C 37°C...

  • Page 77: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)

    14.5 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  When “FAN SPEED/QUIET” button at remote control is pressed continuously until QUIET will be shown on remote control display.

  • Page 78: 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 79 Control pattern:  Cooling mode Sleep Function activated Unit Off Normal Setting +1°C Temperature +1°C -2°C +1°C minutes minutes minutes minutes minutes minutes Setting Set Speed Set Speed Set Speed Set Speed Set Speed Fan Speed 0.5 hr 1.0 hr 2.0 hr Selection of 3.0 hr...

  • Page 80: Auto Restart Control

    14.10 Auto Restart Control  When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.

  • Page 81: 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 82: Nanoe ™ X Operation

    ™ 14.13 nanoe X Operation ™  Generate nanoe X (water wrapped ion particle) to moisturize skin, provide deodorization & sterilization effect. ™  nanoe X operation start condition ™ During unit running at any operation mode, if nanoe X operation is activated, combination operation ™...
  • Page 83 ™  nanoe X check mode ™ ™ To enable nanoe X check mode, during nanoe X operation ON: Normal display mode Press SW (t ≥ 0 secs) When SW pressed continuously for t ≥ 5 secs to enter service zone and press SW’s to choose function 57 Transmit...

  • Page 84: Wireless Lan Control

    However, there is no guarantee that the app will work well with all versions.  The Network Adaptor is designed specifically as a terminal for “Panasonic Comfort Cloud” app.  The Wireless LAN network coverage must reach the indoor unit installation location.
  • Page 85 Google Play   App Store Open Open   Search for “Panasonic Comfort Cloud” app. Search for “Panasonic Comfort Cloud” app.   Download and install. Download and install. Note  The app user interface may change without notice when there is a version upgrade.
  • Page 86 14.14.7 Wireless LAN Failure Diagnosis 14.14.7.1 Between ID Micon and Wireless LAN Module Failure Detect Condition  When module and ID micon (CN-LAN) communication is following below condition. No response against sending data. Reply error against sending data. Regularly sending from AC unit (Every 1 minutes). ...

  • Page 87: 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 88 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 0.36A and 0.54A. During Cooling and Soft Dry operations: Indoor suction temperature - indoor piping temperature is below 4°C.

  • Page 89: 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 90 15.2.5 Dew Prevention Control 1  To prevent dew formation at indoor unit discharge area.  This control will be activated if: Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. When Cooling or Dry mode is operated more than 20 minutes or more. ...

  • Page 91: Protection Control For Heating Operation

    15.3 Protection Control for Heating Operation 15.3.1 Intake Air Temperature Control Compressor will operate at limited freq., if indoor intake air temperature is 30°C or above. 15.3.2 Outdoor Air Temperature Control  The Max current value is regulated when the outdoor air temperature rise above 14°C in order to avoid compressor overloading.

  • Page 92: Servicing Mode

    16. Servicing Mode 16.1 Auto OFF/ON Button Auto OFF/ON Auto OFF/ON Auto OFF/ON Button pressed Button pressed Button pressed 5 sec 5 sec Auto Operation Test Run Operation Stop Test Run Operation Stop (Forced cooling operation) (Forced heating operation) Beep Beep x 2 AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed.

  • Page 93: Heat Only Operation

    REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”...

  • Page 94: Remote Control Button

    16.3 Remote Control Button 16.3.1 SET Button  To check remote control transmission code and store the transmission code to EEPROM. Press “Set” button by using pointer. Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code change. LCD returns to original display if remote control does not operate for 30 seconds.
  • Page 95  To limit set temperature range for COOL & DRY, HEAT, AUTO mode. Press “Set” button by using pointer. Press TEMP increment or decrement button to choose No. 3. Press Timer increment or decrement button to select desired temperature low limit of set temperature for COOL &...
  • Page 96 Press TEMP increment or decrement button to choose No. 5. Press Timer increment or decrement button to select desired temperature low limit of set temperature for HEAT mode. Normal display mode Press SW to enter customer zone & Press SW’s to choose function 5 i) Display latest set temp (Low1).
  • Page 97 Press TEMP increment or decrement button to choose No. 12. Press Timer increment or decrement button to select desired temperature low limit of set temperature for AUTO mode. Normal display mode Press SW to enter customer zone & Press SW’s to choose function 12 i) Display latest set temp (Low3).
  • Page 98  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...
  • Page 99  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:...
  • Page 100 16.3.6 Customization mode LCD display area: Customization display area (highlighted in color) Function Options (If any) Cannot enter this customization mode under the following conditions: ① Operation ON. ② Under [Real/ON/OFF] time setting mode. To enter Customer zone: Normal display Customer Zone mode [range (1~49)]...
  • Page 101 Function & Options list: Note: The functions described in the table may not be applicable to the model and may subject to change without further notice. Customization Options Remark Name Remote control number selection A, B, C, D Solar radiation sensitivity level adjustment 1, 2, 3, 4, 5 [iAUTO-X/iAUTO/iCOMF, Cool &...
  • Page 102 Customization Options Remark Name 01 – Pattern 1 Compressor frequency change speed selection 02 – Pattern 2 03 – Pattern 3 00 – Disable Up/Down air swing upper limit restriction selection 01 – Enable Failure diagnosis mode disable None (No display) Service Zone 01 –...

  • Page 103: 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 Temperature Such problems include insufficient insulation, problem with the (kg/cm (°C) power source, malfunction of a compressor and a fan.
  • Page 104 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 105: Breakdown Self Diagnosis Function

    17.2 Breakdown Self Diagnosis Function 17.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  Every press of the button (up or down) will Once abnormality has occurred during operation, increase abnormality numbers and transmit the unit will stop its operation, and Timer LED abnormality code signal to the main unit.

  • Page 106: 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 107 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 108: 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 109 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 110 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 111 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 112 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 113 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 114 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 115 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 116 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 117 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 118 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 119 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 120 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 121 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 122 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 123 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 124 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 125 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 126 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 127 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 128 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 129 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 130 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 131 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 132 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 133 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 134 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 135 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 136: Disassembly And Assembly Instructions

    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 CS-NZ25YKE CS-NZ35YKE 18.1.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 18.1.1.1...
  • Page 137 5. Remove the Front Grille. Figure 4 18.1.1.2 To Remove Electronic Controller 1. Remove the right side front cover first, then remove the second front cover. Figure 5 2. Remove the particular piece. Figure 6...
  • Page 138 6. Pull out the Main Electronic Controller halfway. Then disconnect all connectors from the controller. Remove the Electronic controller. 5. Disconnect lead wire from the terminal board. 4. Disconnect all connector from high voltage power supply electronic controller. 3. Disconnect the CN-DISP connector from indicator complete.
  • Page 139 4. Pull out the discharge grille to remove. Figure 10 18.1.1.4 To Remove Cross Flow Fan 1. Loosen the cross-flow fan screw. Figure 11 2. Remove 2 screws from Evaporator. Figure 12...
  • Page 140 3. Lift up the Evaporator. 4. Pull out cross-flow fan. Figure 13 18.1.1.5 To Remove Fan Motor 3. Remove air temperature and pipe temperature sensor. 1. Disconnect CN-FM from electronic controller. 2. Remove earth wire from evaporator. Figure 14 4. Remove 1 screw from control board complete.
  • Page 141 5. Remove 4 screws from fan motor cover. Figure 16 6. Remove Fan Motor. Reminder: To reinstall the fan motor, adjust the fan motor connector to 60° towards you before fixing control board. Figure 17 18.1.1.6 To Remove NanoeX 2. Remove CN-NANO from main electronic controller.

  • Page 142: Cs-Nz50Yke

    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. 18.2 CS-NZ50YKE 18.2.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 18.2.1.1 To Remove Front Grille...
  • Page 143 5. Remove front grille complete. Figure 4 18.2.1.2 To Remove Electronic Controller 1. Remove control board front cover at the right side first then remove the second front cover. Figure 5 3. Remove lead wire from terminal board complete. 2. Remove particular piece. 4.
  • Page 144 5. Pull PCB half way then remove all connectors, CN-WHT from PCB. Then Remove main electronic controller. Then remove PCB. Figure 7 18.2.1.3 To Remove Discharge Grille 2. Remove CN-STM 1, 2, 3 from main PCB. 3. Disconnect all connector from high voltage power supply electronic controller.
  • Page 145 4. Pull out the discharge grille to remove. Figure 10 18.2.1.4 To Remove Cross Flow Fan 1. Loosen the cross-flow fan screw. Figure 11 2. Remove 2 screws from Evaporator. Figure 12...
  • Page 146 3. Lift up the Evaporator. 4. Pull out cross-flow fan. Figure 13 18.2.1.5 To Remove Fan Motor 3. Remove air temperature and pipe temperature sensor. 1. Disconnect CN-FM from electronic controller. 2. Remove earth wire from evaporator. Figure 14 4. Remove 1 screw from control board complete.
  • Page 147 5. Remove 4 screws from fan motor cover. Figure 16 6. Remove Fan Motor. Reminder: To reinstall the fan motor, adjust the fan motor connector to 60° towards you before fixing control board. Figure 17 18.2.1.6 To Remove NanoeX 2. Remove CN-NANO from main electronic controller.

  • Page 148: How To Replace Network Adaptor

    Remove 1 mounting screw, then remove the network adaptor holder. Network adaptor Screw holder After that, network adaptor can easily replaced. 18.4 To Setup Wireless LAN Module and Panasonic Comfort Cloud Note: Refer to Wireless LAN Module Setup Instructions [ACXF55-3341*]...

  • Page 149: Outdoor Electronic Controller Removal Procedure

    18.5 Outdoor Electronic Controller Removal Procedure 18.5.1 CU-NZ25YKE CU-NZ35YKE 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 150 18.5.2 CU-NZ50YKE Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove 2 screws for the plate of Terminal Board Cover. Fig. 4 Fig. 1 Remove the Control Board. Remove the 8 screws of the Front Panel. Fig.

  • Page 151: Technical Data

    15.8 2303 1729 430 2386 1813 393 2526 1880 372 2532 1895 383 2736 1975 298 2483 1856 390 2211 1709 495 (Dry bulb value based on 46% humidity) 19.1.2 CS-NZ35YKE CU-NZ35YKE Indoor (°C) Outdoor DB (°C) 3776 3107 660 4048 3153 618 4016 3204 663 3792 3156 596 4044 3276 484 3930 3257 653 3500 2943 850 4320 2260 600 4134 2331 686 4425 2474 562 4237 2420 636 4546 2529 459 4290 2401 650 3800 2246 845 15.7 3405 2649 711 3342 3058 690 3491 3054 635 3444 3025 646 3703 3192 506 3480 3099 667 3127 2904 841...

  • Page 152: Heat Mode Performance Data

    Indoor (°C) Outdoor WB (°C) 12/11 5944 1774 6311 1772 6500 1780 6818 1756 6771 1774 7137 1766 19.2.2 CS-NZ35YKE CU-NZ35YKE Indoor (°C) Outdoor WB (°C) -25/-26 -20/-21 -15/-16 -7/-8 2926 1424 3389 1712 4115 1863 4202 1843 4981 2080...

  • Page 153: Service Data

    20. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 20.1 Cool Mode Outdoor Air Temperature Characteristic Condition 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...
  • Page 154 20.1.2 CS-NZ35YKE CU-NZ35YKE 16.00 15.50 15.00 14.50 14.00 13.50 Outdoor Air Temperature (°C) 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 Outdoor Air Temperature (°C) 1.10 1.05 1.00 0.95 0.90 Outdoor Air Temperature (°C)
  • Page 155 20.1.3 CS-NZ50YKE CU-NZ50YKE 17.0 16.0 15.0 14.0 13.0 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 Outdoor Air Temperature (°C) 8.00 7.00 6.00 5.00 4.00 3.00 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 Outdoor Air Temperature (°C) 1.10 1.00...

  • Page 156: Heat Mode Outdoor Air Temperature Characteristic

    20.2 Heat Mode Outdoor Air Temperature Characteristic Condition 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-NZ25YKE CU-NZ25YKE Outdoor Air Temperature (°C) 3.20...
  • Page 157 20.2.2 CS-NZ35YKE CU-NZ35YKE Outdoor Air Temperature (°C) Outdoor Air Temperature (°C) Outdoor Air Temperature (°C)
  • Page 158 20.2.3 CS-NZ50YKE CU-NZ50YKE 40.00 35.00 30.00 25.00 20.00 15.00 Outdoor Air Temperature (°C) 7.00 6.00 5.00 4.00 3.00 Outdoor Air Temperature (°C) 4.00 3.50 3.00 2.50 2.00 1.50 1.00 Outdoor Air Temperature (°C)

  • Page 159: 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-NZ25YKE CU-NZ25YKE CS-NZ35YKE CU-NZ35YKE 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 160 20.3.2 CS-NZ50YKE CU-NZ50YKE 1.03 1.01 0.99 0.97 0.95 Pipe Length (m) 1.01 1.01 1.00 1.00 0.99 0.99 0.98 0.98 0.97 0.97 0.96 Pipe Length (m) Note: The graphs show the factor after added right amount of additional refrigerant.

  • Page 161: Exploded View And Replacement Parts List

    21. Exploded View and Replacement Parts List 21.1 Indoor Unit 21.1.1 CS-NZ25YKE CS-NZ35YKE CWH55025J CWH55051J E0535 -920 E0535 -920 E0536 -920 E0536 -920 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 162 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-NZ25YKE CS-NZ35YKE REMARK CHASSIS COMPLETE ACXD50C04160 ← FAN MOTOR L6CBYYYL0346 ← CROSS-FLOW FAN COMPLETE ACXH02C01330 ← BEARING ASSY CWH64K1010 ← SCREW - CROSS-FLOW FAN CWH551146 ← FAN MOTOR BRACKET ACXD54-04360 ← EVAPORATOR ACXB30C36270 ←...
  • Page 163 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-NZ25YKE CS-NZ35YKE REMARK INSTALLATION INSTRUCTION ACXF60-47010 ← CWG861497 ← SHOCK ABSORBER - LEFT ACXG70-12960 ← SHOCK ABSORBER - RIGHT ACXG70-12970 ← C.C.CASE ACXG50-58840 ← MODEL LABEL ACXF85-92030 MODEL LABEL ACXF85-92040 (NOTE) ...
  • Page 164 21.1.2 CS-NZ50YKE CWH55025J CWH55051AJ 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 165 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-NZ50YKE REMARK CHASSIS COMPLETE ACXD50C04180 FAN MOTOR L6CBYYYL0391 CROSS-FLOW FAN COMPLETE ACXH02C01450 BEARING ASSY CWH64K1006 SCREW - CROSS-FLOW FAN CWH551146 FAN MOTOR BRACKET ACXD54-04360 EVAPORATOR ACXB30C36070 FLARE NUT (LIQUID) CWT251048 FLARE NUT (GAS) CWT251032 CONTROL BOARD COVER ACXH13-08680...
  • Page 166 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-NZ50YKE REMARK INSTALLATION INSTRUCTION ACXF60-47000 INSTALLATION INSTRUCTION ACXF60-47010 ACXG86-05770 SHOCK ABSORBER - LEFT ACXG70-13280 SHOCK ABSORBER - RIGHT ACXG70-13290 C.C.CASE ACXG50-58880 MODEL LABEL ACXF85-92050 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). ...

  • Page 167: Outdoor Unit

    21.2 Outdoor Unit 21.2.1 CU-NZ25YKE CU-NZ35YKE 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 168 ACXB11-01560 ← STRAINER CWB11094 ← EXPANSION VALVE ACXB05-00400 ← HEATER CWA341072 ← V-COIL COMPLETE - EXP. VALVE ACXA43C01520 ← PANASONIC BADGE CWE373439 ← NORDIC HEATPUMP BADGE CWE373985 ← SOUND PROOF MATERIAL CWG302745 ← ACXG86-03760 ← BASE BOARD-COMPLETE CWG62C1162 ← SHOCK ABSORBER (LEFT) CWG713416 ←...
  • Page 169 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-NZ25YKE CU-NZ35YKE REMARK SHOCK ABSORBER (RIGHT) CWG713415 ← C.C.CASE ACXG50-48901 ← INDICATION LABEL CWF746074 ← MODEL LABEL ACXF85-91960 MODEL LABEL ACXF85-91970 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). ...
  • Page 170 21.2.2 CU-NZ50YKE 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 171 CABINET SIDE PLATE CO. ACXE04C00990 CABINET FRONT PLATE CO. ACXE06K00080 CABINET TOP PLATE ACXE03-00200 CONTROL BOARD COVER-COMPLETE ACXH13C00170 CONTROL BOARD COVER CWH131470 PANASONIC BADGE CWE373439 SOUND PROOF MATERIAL ACXG30-11880 SOUND PROOF MATERIAL - COMP. TOP ACXG30-11550 DISCHARGE MUFFLER(4 W.VALVE) ACXB12-01060 STRAINER ACXB11-01560...
  • Page 172 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-NZ50YKE REMARK SHOCK ABSORBER - RIGHT CWG713218 C.C.CASE ACXG50-52142 INDICATION LABEL CWF746074 MODEL LABEL ACXF85-91980 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock. Printed in Malaysia FB0722-0...

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