Panasonic CU-2Z50ABEC Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Air Conditioner
  5. CU-2Z50ABEC
  6. Service manual
Panasonic CU-2Z50ABEC Service Manual

Panasonic CU-2Z50ABEC Service Manual

Hide thumbs Also See for CU-2Z50ABEC:
Table of Contents

Advertisement

Quick Links

Download this manual
Please file and use this manual together with the service manual for Model No. CS-HZ25ZKE, CS-HZ35ZKE, CS-HZ25ZKE-5,
CS-HZ25ZKE-H, CS-HZ35ZKE-H, CS-HZ25ZKE-5-H, CS-Z20ZKEW, CS-Z25ZKEW, CS-Z35ZKEW, CS-Z50ZKEW, CS-NZ25YKE-1,
CS-NZ35YKE-1, CS-NZ50YKE-1 Order No. PAPAMY2306064CE, PAPAMY2301042CE, PAPAMY2406046CE
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 Commonwealth, 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: PAPAMY2408057CE
Air Conditioner
Outdoor Unit
CU-2Z50ABEC
CU-3Z75ABEC
Destination
Europe
in the Schematic
© Panasonic Corporation 2024

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CU-2Z50ABEC and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Panasonic CU-2Z50ABEC

Summary of Contents for Panasonic CU-2Z50ABEC

  • 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 2024...

  • Page 2: Table Of Contents

    System ............33   Service Data ............78     10.5 Connect the Cable to the Outdoor Unit ..34     18.1 Operation Characteristics (CU-2Z50ABEC) ...   10.6 Heat Insulation ..........35     ..............78   Operation Control ..........38  ...

  • Page 3: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before installation.  Electrical work must be installed 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 electrical work, follow the national regulation, legislation and this installation instructions. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in the electrical work, it will cause electrical shock or fire.

  • Page 5: 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 The appliance shall be stored, installed and operated in a well ventilated room with indoor floor area larger than A ) [refer Table A] and without any continuously operating ignition source.
  • Page 6 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 7 CAUTION 2-9. Checks to the refrigerating equipment  Where electrical components are being changed, they shall be fit for the purpose and to the correct specification.  At all times the manufacturer’s maintenance and service guidelines shall be followed.  If in doubt consult the manufacturer’s technical department for assistance.
  • Page 8 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 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 CU-2Z50ABEC Item Unit Outdoor Unit Indoor Unit Combination 2.5kW + 2.5kW Power Source 1 Phase, 230V, 50Hz (Power supply from outdoor unit) 5.30 (2.11 ~ 7.50) Capacity BTU/h 18100 (7200 ~ 25600) Running Current 5.40 Power Input 1.20 (0.36 ~ 2.00)
  • Page 11 Item Unit Outdoor Unit Standard Length Height Difference Piping Add. Gas Amount Pipe Length for Add. Gas Liquid Side mm (inch) 6.35 (1/4) Refrigerant Pipe Diameter Gas Side mm (inch) 9.52 (3/8) Type Hermetic Motor / Rotary Compressor Motor Type Synchronous Electric Motor (6-poles) Rated Output 1.50k...

  • Page 12: Cu-3Z75Abec

    CU-3Z75ABEC Item Unit Outdoor Unit Indoor Unit Combination 2.5kW + 2.5kW + 2.5kW Power Source 1 Phase, 230V, 50Hz (Power supply from outdoor unit) 7.50 (2.11 ~ 8.80) Capacity BTU/h 25600 (7200 ~ 30000) Running Current 8.30 Power Input 1.90 (0.38 ~ 2.42) Electrical Data 3.95 (5.55 ~ 3.64)
  • Page 13 Item Unit Outdoor Unit Standard Length Height Difference Piping Add. Gas Amount Pipe Length for Add. Gas Liquid Side mm (inch) 6.35 (1/4) Refrigerant Pipe Diameter Gas Side mm (inch) 9.52 (3/8) Type Hermetic Motor / Rotary Compressor Motor Type Synchronous Electric Motor (6-poles) Rated Output 1.50k...
  • Page 14 2. The total nominal cooling capacity of indoor unit that will be connected to outdoor unit must be within connectable capacity range of indoor unit. (as shown in the table above) Example: The indoor units’ combination below is possible to connect to CU-2Z50ABEC. (Total nominal capacity of indoor units is between 4.0kW to 8.5kW) 1) Two CS-HZ25ZKE only.
  • Page 15 Type of Indoor : CS-HZxxxKE/-H/-5/-5-H wall mount series ANNUAL Indoor unit capacity Cooling Capacity (kW) Input Power (W) Current, MOISTURE REMOVAL Outdoor ENERGY Total 230V Pdesign SEER VOLUME ANNUAL unit CONSUMPTION CONSUMPTION (kWh) Room Room Room (kWh) Cooling Total min ~ max Rating min ~ max W/W CLASS...
  • Page 16 Type of Indoor : CS-HZxxxKE/-H/-5/-5-H wall mount series ANNUAL Indoor unit capacity Heating Capacity (kW) Input Power (W) Current, MOISTURE REMOVAL Outdoor ENERGY Total 230V Pdesign SCOP VOLUME ANNUAL unit CONSUMPTION CONSUMPTION (kWh) Room Room Room (kWh) Heating Total min ~ max Rating min ~ max W/W CLASS...
  • Page 17 Type of Indoor : CS-HZxxxKE/-H/-5/-5-H wall mount series ANNUAL Indoor unit capacity Cooling Capacity (kW) Input Power (W) Current, MOISTURE REMOVAL Outdoor ENERGY Total 230V Pdesign SEER VOLUME ANNUAL unit CONSUMPTION CONSUMPTION (kWh) Room Room Room (kWh) Cooling Total min ~ max Rating min ~ max W/W CLASS...
  • Page 18 Type of Indoor : CS-HZxxxKE/-H/-5/-5-H wall mount series ANNUAL Indoor unit capacity Heating Capacity (kW) Input Power (W) Current, MOISTURE REMOVAL Outdoor ENERGY Total 230V Pdesign SCOP VOLUME ANNUAL unit CONSUMPTION CONSUMPTION (kWh) Room Room Room (kWh) Heating Total min ~ max Rating min ~ max W/W CLASS...

  • Page 19: Dimensions

    4. Dimensions <Top View> 27.5 (131) (1-1/6) (5-3/16) (24-1/8) (5-3/16) (3-3/4) Space necessary for installation 100 mm (3-15/16 inch) 100 mm (3-15/16 inch) 1000 mm (39-3/8 inch) (18) (90) (3/64) (3-35/64) Anchor Bolt Pitch 613 (24-1/8) × 360.5 (14-3/16) <Side View> <Front View>...

  • Page 20: Refrigeration Cycle Diagram

    5. Refrigeration Cycle Diagram CU-2Z50ABEC...

  • Page 21: Cu-3Z75Abec

    CU-3Z75ABEC INDOOR A OUTDOOR PIPE TEMP. SENSOR LIQUID SIDE 3-WAY VALVE MUFFLER STRAINER EXPANSION INTAKE VALVE A TEMP. SENSOR PIPE PIPE TEMP. TEMP. SENSOR SENSOR LIQUID SIDE 3-WAY VALVE STRAINER EXPANSION MUFFLER GAS SIDE HEAT VALVE B EXCHANGER 3-WAY VALVE (EVAPORATOR) PIPE TEMP.

  • Page 22: Block Diagram

    6. Block Diagram CU-2Z50ABEC...

  • Page 23: Cu-3Z75Abec

    CU-3Z75ABEC...

  • Page 24: Wiring Connection Diagram

    7. Wiring Connection Diagram CU-2Z50ABEC t˚ t˚ t˚ t˚...

  • Page 25: Cu-3Z75Abec

    CU-3Z75ABEC t˚ t˚ t˚ t˚...

  • Page 26: Electronic Circuit Diagram

    8. Electronic Circuit Diagram CU-2Z50ABEC t˚ t˚ t˚ t˚...

  • Page 27: Cu-3Z75Abec

    CU-3Z75ABEC t˚ t˚ t˚ t˚...

  • Page 28: Printed Circuit Board

    9. Printed Circuit Board Main Printed Circuit Board POWER TRANSISTOR (IPM) RAT1 CN-MTR CN-DISP2 CN-DATA1 CN-HOT CN-TH3 CN-DISP1 CN-TH1 CN-DIS CN-PSW1 CN-TH4 CN-102 CN-TH2 CN-101 CN-STM1 CN-STM2 CN-STM3 RY-PWR AC-N AC-L RAT2 RY-HT2 CN-DISP3...

  • Page 29: Noise Filter Printed Circuit Board

    Noise Filter Printed Circuit Board AC-BRW CN-BLK CN-WHT AC-BLU CN-DATA CN-COM1 Display Printed Circuit Board CN-DISP1 CN-NMODE1 CN-NMODE2 LED1 LED2 LED3 LED4 LED5 LED6...

  • Page 30: Installation Instruction

    10. Installation Instruction 10.1 Select the Best Location 10.1.1 Outdoor Unit  If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.  There should not be any animal or plant which could be affected by hot air discharged. ...
  • Page 31 Allowable piping length Outdoor Unit CU-2Z50*** CU-3Z75*** Allowable piping length of each indoor unit (min. ~ max.) 3 m ~ 25 m 3 m ~ 25 m Allowable total piping length of all indoor unit 50 m or less 60 m or less ○...

  • Page 32: Install The Outdoor Unit

    10.2 Install the Outdoor Unit  After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.

  • Page 33: Air Tightness Test On The Refrigerating System

    AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 10.4 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 34: Connect The Cable To The Outdoor Unit

    10.5 Connect the Cable to the Outdoor Unit 1. Remove the control board cover metal from the unit by loosening two screws. 2. Cable connection to the power supply through isolating Devices (Disconnecting means).  Connect approved type polychloroprene sheathed power supply cord 3 x 2.5 mm 60245 IEC 57 type designation or heavier cord to the terminal board, and connect the others end of the cord to Isolating Devices (Disconnecting means).

  • Page 35: Heat Insulation

    CU-2Z50*** CU-3Z75*** Unit A Unit B Unit A Unit B Unit C Power Supply Indoor & outdoor Cord connection wire Power Supply Cord Indoor & outdoor connection cable Indoor Indoor Isolating Indoor Indoor Indoor Unit A Unit B Devices Unit A Unit C Unit B 5.
  • Page 36 10.6.2 Pump Down Operation  Operate the pump down according to the following procedures. 1. Confirm the valve on the liquid side and gas side is open. 2. Press PUMP DOWN switch (SW1) on the display printed circuit board for more than 5 seconds. Pump down (cooling) operation is performed for 15 minutes.

  • Page 37: Wiring Error Check

    10.6.4 Wiring Error Check This product capable to correct the wiring error automatically by following procedures. 1. Confirm the valve on the liquid side and gas side is open. 2. Press WIRING CHECK switch (SW3) on the display printed circuit board for more than 10 seconds to start wiring check operation.

  • Page 38: Operation Control

    11. Operation Control 11.1 Cooling Operation 11.1.1 Outdoor Fan Control  When cooling operation is enabled, based on outdoor ambient temperature, fan motor control will be adjusted according to figure below: RPM free 15°C (59°F) 13°C (55.4°F) RPM controlled -12°C Stopped OD temp.

  • Page 39: Outdoor Quiet Cooling Operation Control

    11.2 Outdoor Quiet Cooling Operation Control  Purpose Provide quiet cooling operation when only 1 indoor in operation.  Start Condition Indoor fan speed is lower than Lo fan. Only 1 or all operation indoor unit. Not in any cooling overload zone. Not during annual cooling Not initial frequency operation.

  • Page 40: Heating Operation

    11.3 Heating Operation 11.3.1 Outdoor Fan Control  When heating operation is enabled, based on outdoor ambient temperature, fan motor control will be adjusted according to figure below for Heating overload control: RPM controlled 12°C (53.6°F) 10°C (50°F) RPM free OD temp.

  • Page 41: Simultaneous Operation Control

    12. Simultaneous Operation Control  Operation modes which can be selected using the remote control unit: Automatic, Cooling, Dry, Heating and e-ion operation mode.  Types of operation modes which can be performed simultaneously Cooling operation and Cooling, Dry or e-ion operation. Heating operation and Heating operation.

  • Page 42: Protection Control

    13. Protection Control 13.1 Freeze Prevention Control (Cool)  When received freeze prevention signal from indoor unit, the compressor frequency changes according to indoor heat exchanger temperature.  When indoor unit request capability OFF due to freeze condition, immediately the capability supply to targeted indoor unit stops.

  • Page 43: Cooling Overload Control (Cool)

    13.5 Cooling Overload Control (Cool)  This control detect outdoor pipe temperature and perform the compressor frequency restriction during cooling operation. Comp stop 63°C (145.4°F) Comp freq restricted 56°C (132.8°F) 54°C (129.2°F) Comp freq free OD Pipe temp 13.6 Heating Overload Control (Heat) ...

  • Page 44: Deice Control

    13.8 Deice Control  When outdoor pipe temperature and outdoor air temperature is low, deice operation starts where indoor fan motor and outdoor fan motor stop, indoor unit horizontal vane close and operation LED blink with compressor ON. 13.9 Time Delay Safety Control (Restart Control) ...

  • Page 45: Compressor Protection Control (Gas Leak Detection Control 1)

    13.13 Compressor Protection Control (Gas Leak Detection Control 1)  Control start conditions For 5 minutes, the compressor continuously operates and total current is low. During Cooling or Soft Dry operation: Indoor intake temperature — indoor piping temperature is below 4°C (7.2°F). During Heating operation: Indoor pipe temperature —...

  • Page 46: Cooling Outdoor Air Temperature Control (Cool)

    13.17 Cooling Outdoor Air Temperature Control (Cool)  The compressor will be stopped to avoid compressor overloading. COMP. ON -10°C (14°F) -12°C (10.4°F) COMP. OFF Outdoor Temperature...

  • Page 47: Servicing Mode

    14. Servicing Mode SW1 (PUMP DOWN) SW2 (OPERATION TEST) SW3 (WIRING CHECK) 14.1 Pump Down Operation  Operate the pump down according to the following procedures. 1. Confirm the valve on the liquid side and gas side is open. 2. Press PUMP DOWN switch (SW1) on the display printed circuit board for more than 5 seconds. Pump down (cooling) operation is performed for 15 minutes.

  • Page 48: Wiring Error Check

    14.3 Wiring Error Check This product capable to correct the wiring error automatically by following procedures. 1. Confirm the valve on the liquid side and gas side is open. 2. Press WIRING CHECK switch (SW3) on the display printed circuit board for more than 10 seconds to start wiring check operation.

  • Page 49: Troubleshooting Guide

    15. Troubleshooting Guide 15.1 Self Diagnosis Function  The display screen of wireless remote control unit and the self-diagnosis LEDs (green) on the outdoor printed circuit board in the outdoor unit can be used to identify the location of the problem. Refer to the table below to identify and solve the cause of the problem, and then re-start the air conditioner system.

  • Page 52: Disassembly And Assembly Instructions

    16. Disassembly and Assembly Instructions WARNING High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1 Outdoor Unit Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge.
  • Page 53 16.1.2 Remove the Control Board Cover and Particular Plates 3. Remove the control board cover (remove 3 screws). 4. Remove the particular plate (remove 2 screws). 5. Remove the particular plate (remove 2 screws). 16.1.3 Removing the Control P.C. Board 6.
  • Page 54 16.1.4 Removing the Propeller Fan and Fan Motor 1. Follow the steps in 16.1.1 for removing the cabinet top plate and cabinet front plate. 2. Remove the propeller fan by removing the nut turning clockwise at its center. 3. Disconnect the fan motor connector from the control P.C.

  • Page 55: Technical Data

    17. Technical Data Technical data provided are based on the air conditioner running under free frequency. 17.1 Cooling Capacity 17.1.1 CU-2Z50ABEC CS-HZxxxKEW [50 Hz, 230 V] Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp.
  • Page 56 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 7.66 1.27...
  • Page 57 17.1.2 CU-2Z50ABEC CS-ZxxxKEW CS-NZxxxKEW [50 Hz, 230 V] Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q...
  • Page 58 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 7.14 1.24...
  • Page 59 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 7.96 1.42...
  • Page 60 17.1.3 CU-3Z75ABEC CS-HZxxxKEW [50 Hz, 230 V] Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power...
  • Page 61 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 8.98 1.57...
  • Page 62 17.1.4 CU-3Z75ABEC CS-ZxxxKEW CS-NZxxxKEW [50 Hz, 230 V] Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power...
  • Page 63 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 7.14 1.34...
  • Page 64 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 8.47 1.52...
  • Page 65 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 8.98 1.47...
  • Page 66 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 9.59 1.48...
  • Page 67 Indoor Air Temp. °C Outdoor Air Combination 27/16 27/17.5 27/18 27/19 27/22 27/24 Temp. (Capacity) °C DB Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power 9.59 1.48...

  • Page 68: Heating Capacity

    17.2 Heating Capacity 17.2.1 CU-2Z50ABEC CS-HZxxxKEW [50 Hz, 230 V] Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input...
  • Page 69 17.2.2 CU-2Z50ABEC CS-ZxxxKEW CS-NZxxxKEW [50 Hz, 230 V] * To achieve this capacity for ZxxxKEW models, please enable Nordic cold draught control using the service mode Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16...
  • Page 70 Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Power Power Power...
  • Page 71 17.2.3 CU-3Z75ABEC CS-HZxxxKEW [50 Hz, 230 V] Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input...
  • Page 72 Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Power Power Power...
  • Page 73 17.2.4 CU-3Z75ABEC CS-ZxxxKEW CS-NZxxxKEW [50 Hz, 230 V] * To achieve this capacity for ZxxxKEW models, please enable Nordic cold draught control using the service mode Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp.
  • Page 74 Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Power Power Power...
  • Page 75 Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Power Power Power...
  • Page 76 Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Power Power Power...
  • Page 77 Outdoor Air Temp. °C Indoor Air Combination 24/18.5 16/15 11/10 0/-1 -5/-6 -10/-11 -15/-16 -21/- -26/- Temp. (Capacity) °C DB Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Total Input Power Power Power...

  • Page 78: Service Data

    18. Service Data Service Data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 18.1 Operation Characteristics (CU-2Z50ABEC) 18.1.1 One Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT)
  • Page 79  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz B) Indoor unit capacity: Cooling (2.5), CS-Z25ZKEW, CS-HZ25ZKE, CS-NZ25YKE 61.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 59.200 (°F) 52.2...
  • Page 80  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz C) Indoor unit capacity: Cooling (3.5), CS-Z35ZKEW, CS-HZ35ZKE, CS-NZ35YKE 58.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 56.400 (°F) 54.800...
  • Page 81  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz D) Indoor unit capacity: Cooling (5.0), CS-Z50ZKEW, CS-NZ50YKE 56.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 54.400 (°F) 48.9 52.800...
  • Page 82  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.0), CS-Z20ZKEW, CS-NZ20ZKE 110.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 106.000 (°F) 91.8 102.000...
  • Page 83  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz B) Indoor unit capacity: Heating (2.5), CS-Z25ZKEW, CS-HZ25ZKE, CS-NZ25YKE 114.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 110.400 (°F) 96.0...
  • Page 84  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz C) Indoor unit capacity: Heating (3.5), CS-Z35ZKEW, CS-HZ35ZKE, CS-NZ35YKE 116.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 112.000 (°F) 97.0...
  • Page 85  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz D) Indoor unit capacity: Heating (5.0), CS-Z50ZKEW, CS-NZ50YKE 124.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 120.000 (°F) 104.0 116.000...
  • Page 86 18.1.2 Two Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Cooling (2.5 + 2.5), (CS-Z25ZKEW x2, CS-HZ25ZKE x2, CS-NZ25YKE x2) 61.000 Indoor Discharge Air Outdoor Air...
  • Page 87  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.5 + 2.5), (CS-Z25ZKEW x2, CS-HZ25ZKE x2, CS-NZ25YKE x2) 112.000 Indoor Discharge Air Outdoor Air Temperature (°F) Temperature...

  • Page 88: Operation Characteristics (Cu-3Z75Abec)

    18.2 Operation Characteristics (CU-3Z75ABEC) 18.2.1 One Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Cooling (2.0), CS-Z20ZKEW, CS-NZ20ZKE 61.000 Indoor Discharge Outdoor Air Air Temperature...
  • Page 89  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz B) Indoor unit capacity: Cooling (2.5), CS-Z25ZKEW, CS-HZ25ZKE, CS-NZ25YKE 61.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 59.200 (°F) 52.2...
  • Page 90  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz C) Indoor unit capacity: Cooling (3.5), CS-Z35ZKEW, CS-HZ35ZKE, CS-NZ35YKE 58.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 56.400 (°F) 54.800...
  • Page 91  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz D) Indoor unit capacity: Cooling (5.0), CS-Z50ZKEW, CS-NZ50YKE 56.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 54.400 (°F) 48.9 52.800...
  • Page 92  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.0), CS-Z20ZKEW, CS-NZ20ZKE 110.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 106.000 (°F) 91.8 102.000...
  • Page 93  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz B) Indoor unit capacity: Heating (2.5), CS-Z25ZKEW, CS-HZ25ZKE, CS-NZ25YKE 114.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 110.400 (°F) 96.0...
  • Page 94  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz C) Indoor unit capacity: Heating (3.5), CS-Z35ZKEW, CS-HZ35ZKE, CS-NZ35YKE 116.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 112.000 (°F) 97.0...
  • Page 95  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz D) Indoor unit capacity: Heating (5.0), CS-Z50ZKEW, CS-NZ50YKE 124.000 Indoor Discharge Outdoor Air Air Temperature Temperature (°F) 120.000 (°F) 104.0 116.000...
  • Page 96 18.2.2 Two Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Cooling (2.5 + 2.5), (CS-Z25ZKEW x2, CS-HZ25ZKE x2, CS-NZ25YKE x2) 60.000 Indoor Discharge Air Outdoor Air...
  • Page 97  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.5 + 2.5), (CS-Z25ZKEW x2, CS-HZ25ZKE x2, CS-NZ25YKE x2) 112.000 Indoor Discharge Air Outdoor Air Temperature (°F) Temperature...
  • Page 98 18.2.3 Three Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Cooling (2.5 + 2.5 + 2.5), (CS-Z25ZKEW x3, CS-HZ25ZKE x3, CS-NZ25YKE x3) 65.000 Outdoor Air Indoor Discharge Air Temperature (°F)
  • Page 99  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.5 + 2.5 + 2.5), (CS-Z25ZKEW x3, CS-HZ25ZKE x3, CS-NZ25YKE x3) 100.000 Outdoor Air Indoor Discharge Air Temperature (°F) Temperature 97.000...

  • Page 100: Exploded View And Replacement Parts List

    19. Exploded View and Replacement Parts List - 2 Z - 2 Z F054 - 3 Z F054 - 3 Z F054 F054 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 101 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-2Z50ABEC CU-3Z75ABEC REMARK BASE PAN ASSY ACXD52K05570 ← FAN MOTOR BRACKET ACXD54-04490 ACXD54-05430 SCREW - BRACKET FAN MOTOR ACXH55-07140 ← FAN MOTOR L6CBYYYL0422 ← Ο SCREW - FAN MOTOR MOUNT CWH551323 ←...
  • Page 102 PRESSURE SWITCH - CN-PSW1 ACXA10-00640 ← Ο SPRING FOR SENSOR 4 / 5 CWH711010 ← HOLDER SENSOR 2 / 3 CWH32074 ← BADGE - PANASONIC ACXE37-20160 ← BADGE - POWER HEAT ACXE37-20180 ← INSTALLATION INSTRUCTION ACXF60-56070 ← INSTALLATION INSTRUCTION ACXF60-56080 ←...
  • Page 103 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-2Z50ABEC CU-3Z75ABEC REMARK CWG861154 ← BASE BOARD - COMPLETE CWG62C1081 ← SHOCK ABSORBER - RIGHT CWG712879 ← SHOCK ABSORBER - LEFT CWG712880 ← C.C. CASE ACXG50-52323 ← MODEL LABEL ACXF87-36370 ACXF87-36400 (Note) ...

This manual is also suitable for:

Cu-3z75abec

Table of Contents