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Panasonic CU-3TZ52TBE Service Manual
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Panasonic CU-3TZ52TBE Service Manual

Outdoor unit
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Please file and use this manual together with the service manual for Model No. CS-MTZ16TKE CS-TZ20TKEW CS-TZ25TKEW
CS-TZ35TKEW CS-TZ42TKEW CS-TZ50TKEW CS-TE20TKEW CS-TE25TKEW CS-TE35TKEW CS-TE42TKEW CS-TE50TKEW
CS-TZ20TKEW-1 CS-TZ25TKEW-1 CS-TZ35TKEW-1 CS-TZ42TKEW-1 Order No. PAPAMY1702032CE PAPAMY1703046CE
PAPAMY1703052CE PAPAMY1704061CE PAPAMY1801024CE PAPAMY1802072CE
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: PAPAMY1802091CE
Air Conditioner
Outdoor Unit
CU-3TZ52TBE
Destination
Europe
Turkey
in the Schematic
© Panasonic Corporation 2018

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Summary of Contents for Panasonic CU-3TZ52TBE

  • 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 2018...

  • Page 2: Table Of Contents

    Operation Control ..........32     Service Data ............71     12.1 Cooling Operation ........32     19.1 Operation Characteristics (CU-3TZ52TBE) ...   12.2 Heating Operation ........33     ..............71   12.3 Outdoor Quiet Cooling Operation Control .. 33  ...

  • 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 Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or installation is not properly done, the set will drop and cause injury. For electrical work, follow the national regulation, legislation and this installation instructions. An independent circuit and single outlet must be used.
  • Page 5 CAUTION Do not install the unit in a place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. Prevent liquid or vapor from entering sumps or sewers since vapor is heavier than air and may form suffocating atmospheres. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigerant parts.

  • 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 CU-3TZ52TBE Item Unit OUTDOOR UNIT Indoor Unit Combination 1.6kW + 1.6kW + 2.0kW Power Source 1 Phase, 230V, 50Hz (Power supply from outdoor unit) 5.20 (1.80 ~ 6.60) Capacity BTU/h 17700 (6140 ~ 22500) Running Current 5.30 Electrical Power Input 1.15k (360 ~ 1.80k)
  • Page 11 Item Unit OUTDOOR UNIT Type Plate fin configuration forced draft type Tube Material Copper Heat Exchanger Fin Material Aluminum (Pre Coat) Row / Stage 2 / 36 /min Air Volume High (Cooling / Heating) 41.7 (1470) / 41.7 (1470) /min) Refrigerant Control Device Expansion Valve Refrigerant Oil...
  • Page 12 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-3TZ52TBE. (Total nominal capacity of indoor units is between 4.5kW to 9.5kW)
  • Page 13  Indoor Unit : Combination of all wall mount series (CS-MTZ / TZ / TE) Outdoor Unit : CU-3TZ52TBE  Cooling Capacity (kW) Input Power (W) Indoor unit capacity Total Cooling Room A Room B Total min ~ max Rating...
  • Page 14 Annual Energy Indoor unit capacity Current Moisture Removal Volume Consumption SEER Cooling 230V (A) Pdesign Annual Consumption (kWh) (kW) (kWh) CLASS 1 Room 16 + 16 3.20 6.10 1.0 + 1.0 16 + 20 3.60 6.10 1.0 + 1.3 16 + 25 4.10 6.10 1.0 + 1.5...
  • Page 15 Heating Capacity (kW) Input Power (W) Indoor unit capacity Total Heating Room A Room B Total min ~ max Rating min ~ max CLASS 2.60 2.60 1.2 ~ 3.2 300 ~ 1000 4.06 3.20 3.20 1.2 ~ 4.1 300 ~ 1270 4.10 3.60 3.60...
  • Page 16 Annual Energy Indoor unit capacity Current Moisture Removal Volume Consumption SEER Heating 230V (A) Pdesign Annual Consumption (kWh) (kW) (kWh) CLASS 1 Room 1070 16 + 16 3.60 3.80 1326 16 + 20 3.60 3.80 1326 16 + 25 4.20 3.80 1547 16 + 35...

  • Page 17: Dimensions

    4. Dimensions <Top View> Space necessary for installation (131) 27.5 100 mm 100 mm 1000 mm Anchor Bolt Pitch 360.5 x 613 <Side View> <Front View> <Side View> 23.8 Unit: mm...

  • Page 18: Refrigeration Cycle Diagram

    5. Refrigeration Cycle Diagram 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)

  • Page 19: Block Diagram

    6. Block Diagram...

  • Page 20: Wiring Connection Diagram

    7. Wiring Connection Diagram...

  • Page 21: Electronic Circuit Diagram

    8. Electronic Circuit Diagram...

  • Page 22: Printed Circuit Board

    9. Printed Circuit Board Main Printed Circuit Board POWER TRANSISTOR (IPM) CURRENT TRANSFORMER (CT) CN-DISP2 CN-HT CN-HOT CN-EV1 CN-DATA CN-TH1 CN-NMODE CN-EV2 CN-DIS CN-TH3 CN-EV3 CN-TH2 CN-EV4 CN-TH4 CN-PSW1 CN-DISP1 CN-HEAT CN-FM1...

  • Page 23: Noise Filter Printed Circuit Board

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

  • Page 24: Installation Information

    10. Installation Information 10.1.1 Check Points Indoor/outdoor unit connection cables (Not included in the unit) 1.5 mm flexible cord x 4 core Unit C (polychloroprene sheathed) Outdoor unit power supply: Single-phase 230V, 50Hz (Not included in the unit) Unit B 16A switch (circuit breaker) 1.5 mm...

  • Page 25: Installation Instruction

    11. Installation Instruction 11.1 Select The Best Location  If an awning is built over the unit to prevent direct Installation parts you should purchase ( ) sunlight or rain, be careful that heat radiation from Outdoor Unit Installation Diagram It is advisable to avoid the condenser is not obstructed.

  • Page 26: Install The Outdoor Unit

    Outdoor unit located Outdoor unit located Indoor unit on upper side otherwise Outdoor unit Outdoor unit Outdoor unit Indoor unit Outdoor Unit Installation Guidelines  Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation guidelines below.
  • Page 27 Screw Control Board Cover (resin) Female side Flare Nut Applicable to Liquid and Gas side of (Connection Pipe) CS-MTZ16***, CS-TZ20***, CS-TZ25***, Torque Wrench for Flare Nut CS-TZ35***, CS-TZ42***, Liquid CS-TZ50***, side Flare Nut CS-TE20***, CS-TE25***, Gas side (Connection Pipe) CS-TE35***, CS-TE42***, CS-TE50*** Torque Wrench for Flare Nut...

  • Page 28: Air Tightness Test On The Refrigerating System

    AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 11.4 Air Tightness Test on the Refrigerating System Before system charged with refrigerant and before the refrigerating system in put into operation, below site test procedure and acceptance criteria shall be verified by the certified technicians, and/or the installer:- Step 1: Pressure test for refrigerant leak detection: 1) Steps for pressure test, in accordance to ISO 5149.

  • Page 29: Connect The Cable To The Outdoor Unit

    Step 3: Evacuation of the equipment: 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. 1. Connect a charging hose with a push pin to Outdoor unit the Low side of a charging set and the service Tube connector...
  • Page 30 Terminals on the indoor unit Colour of wires (Connecting cable) Terminals on the outdoor unit (Power supply cord) (UNIT A) (UNIT B) (UNIT C) Terminals on the isolating devices (L) (N) (Disconnecting means) RISK OF FIRE JOINING OF WIRES MAY CAUSE OVERHEAT AND FIRE.

  • Page 31: Heat Insulation

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

  • Page 32: Operation Control

    12. Operation Control 12.1 Cooling Operation 12.1.1 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 13°C RPM controlled -13°C Stopped OD temp. 12.1.2 Annual Cooling control ...

  • Page 33: Heating Operation

    12.2 Heating Operation 12.2.1 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 10°C RPM free OD temp. 12.2.2 Heating Room Temp Sampling Control ...
  • Page 34  Cancel Condition Indoor fan speed is equal or higher than Lo fan. > 1 operation indoor unit. In any cooling overload zone. During annual cooling Initial frequency operation. During starting control. During “Electronic part temperature rise protection by outdoor air & total current” During “Electronic part temperature rise protection by total current”...

  • Page 35: Simultaneous Operation Control

    13. 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 36: Protection Control

    14. Protection Control 14.1 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 37: Cooling Overload Control (Cool)

    14.5 Cooling overload control (Cool)  This control detect outdoor pipe temperature and perform the compressor frequency restriction during cooling operation. Comp stop 64°C Comp freq restricted 60°C 57°C Comp freq free OD Pipe temp 14.6 Heating overload control (Heat) ...

  • Page 38: Deice Control

    If the running current does not exceed X value for 5 seconds, compressor frequency will increase.  However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3 minutes. CU-3TZ52TBE Operation Mode X (A) Y (A) 12.72...

  • Page 39: Compressor Protection Control (Gas Leak Detection Control 1)

    14.13 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. During Heating operation: Indoor pipe temperature —...

  • Page 40: Cooling Outdoor Air Temperature Control (Cool)

    14.17 Cooling Outdoor Air Temperature Control (Cool)  The compressor will be stopped to avoid compressor overloading. COMP. ON -10°C -12°C COMP. OFF Outdoor Temperature 14.18 Heating Outdoor Air Temperature Control (Heat)  The compressor will be stopped to avoid compressor overloading. COMP.

  • Page 41: Servicing Mode

    15. Servicing Mode Fig. 1 JP1 (COOL ONLY) SW1 (PUMP DOWN) OFF ON SW4 (POWER SW2 (OPERATION SAVE) TEST) OFF ON SW5 (MODE SW3 (WIRING CHECK) PRIORITY) 15.1 Pump down operation (SW1)  Operate the pump down process according to the following procedure Confirm the valve on the liquid side and gas side are open.

  • Page 42: Wiring Error Check

    15.3 Wiring Error Check  The unit capable to correct the wiring error automatically by following procedures. Confirm the valve on the liquid side and gas side is open. Press WIRING CHECK switch (SW3) on the Display PCB inside the outdoor unit for more than 10 seconds to start wiring check operation.

  • Page 43: Troubleshooting Guide

    16. Troubleshooting Guide 16.1 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 46: Disassembly And Assembly Instructions

    17. 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. 17.1 Outdoor Unit Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge.
  • Page 47 17.1.2 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). 17.1.3 Removing the Control P.C. Board 6.
  • Page 48 17.1.4 Removing the Propeller Fan and Fan Motor 1. Follow the steps in 18.2.1 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 49: Technical Data

    Technical data provided are based on the air conditioner running under free frequency. 18.1 Cool Mode Performance Data Unit setting: Standard piping length, Hi Fan, Cool mode at 16°C Voltage: 230V, 50Hz 18.1.1 CU-3TZ52TBE Indoor Air Temp. °C Outdoor Combination Air Temp.
  • Page 50 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 3.35 0.64 3.55 0.63 3.62 0.62 3.75...
  • Page 51 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.43 1.36 6.63 1.34 6.69 1.33 6.82...
  • Page 52 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.43 1.33 6.63 1.31 6.69 1.31 6.82...
  • Page 53 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.53 1.36 6.73 1.34 6.80 1.33 6.93...
  • Page 54 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.53 1.31 6.73 1.29 6.80 1.28 6.93...
  • Page 55 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.74 1.13 6.94 1.12 7.01 1.11 7.15...
  • Page 56 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.74 1.11 6.94 1.09 7.01 1.08 7.15...
  • Page 57 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.74 1.11 6.94 1.09 7.01 1.08 7.15...
  • Page 58 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.74 1.13 6.94 1.12 7.01 1.11 7.15...
  • Page 59 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.74 1.11 6.94 1.09 7.01 1.08 7.15...
  • Page 60 Indoor Air Temp. °C Outdoor Combination Air Temp. 17.5 (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 6.74 1.11 6.94 1.09 7.01 1.08 7.15...

  • Page 61: Heat Mode Performance Data

    18.2 Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 30°C Voltage: 230V, 50Hz 18.2.1 CU-3TZ52TBE Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input...
  • Page 62 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 13.78 1.49 9.65...
  • Page 63 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 13.78 1.46 9.65...
  • Page 64 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.37 1.53 10.06...
  • Page 65 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.77 1.54 10.34...
  • Page 66 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.77 1.38 10.34...
  • Page 67 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.77 1.28 10.34...
  • Page 68 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.77 1.36 10.34...
  • Page 69 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.77 1.39 10.34...
  • Page 70 Outdoor Air Temp. °C WB Indoor Combination Air Temp. (Capacity) °C DB Input Input Input Input Input Input Input Total Q Total Q Total Q Total Q Total Q Total Q Total Q Power Power Power Power Power Power Power 14.77 1.37 10.34...

  • Page 71: Service Data

    19. Service Data Service Data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 19.1 Operation Characteristics (CU-3TZ52TBE) 19.1.1 One Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0 m...
  • Page 72  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz B) Indoor unit capacity: Cooling (2.5), CS-TZ25TKEW 14.200 13.760 13.320 12.880 12.440 12.000 11.560 11.120 10.680 10.240 9.800 Outdoor Air Temperature (°C) 6.100 5.440...
  • Page 73  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz C) Indoor unit capacity: Cooling (4.2), CS-TZ42TKEW 15.800 15.320 14.840 14.360 13.880 13.400 12.920 12.440 11.960 11.480 11.000 Outdoor Air Temperature (°C) 6.800 6.060...
  • Page 74  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.0), CS-TZ20TKEW 44.200 42.650 41.100 39.550 38.000 36.450 34.900 33.350 31.800 30.250 28.700 Outdoor Air Temperature (°C) 7.400 7.040...
  • Page 75  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz B) Indoor unit capacity: Heating (2.5), CS-TZ25TKEW 47.300 45.640 43.980 42.320 40.660 39.000 37.340 35.680 34.020 32.360 30.700 -14 -12 Outdoor Air Temperature (°C) 8.000...
  • Page 76  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz C) Indoor unit capacity: Heating (4.2), CS-TZ42TKEW 47.000 45.300 43.600 41.900 40.200 38.500 36.800 35.100 33.400 31.700 30.000 -14 -12 Outdoor Air Temperature (°C) 8.000...
  • Page 77 19.1.2 Two Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz A) Indoor unit capacity: Cooling (2.0 + 2.5), CS-TZ20TKEW + CS-TZ25TKEW TZ20TKEW TZ25TKEW 17.800 17.250 16.700...
  • Page 78  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz Indoor unit capacity: Cooling (2.5 + 4.2), CS-TZ25TKEW + CS-TZ42TKEW TZ25TKEW TZ42TKEW 18.300 17.670 17.040 16.410 15.780 15.150 14.520 13.890 13.260...
  • Page 79  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.0 + 2.5), CS-TZ20TKEW + CS-TZ25TKEW TZ20TKEW TZ25TKEW 42.200 40.710 39.220 37.730 36.240 34.750 33.260 31.770...
  • Page 80  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz B) Indoor unit capacity: Heating (2.5 + 4.2), CS-TZ25TKEW + CS-TZ42TKEW TZ25TKEW TZ42TKEW 42.000 40.600 39.200 37.800 36.400 35.000 33.600 32.200...
  • Page 81 19.1.3 Three Indoor Unit Operation  Cooling Characteristic [Condition] Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz A) Indoor unit capacity: Cooling (2.0 + 2.5 + 4.2), CS-TZ20TKEW + CS-TZ25TKEW + CS-TZ42TKEW TZ20TKEW TZ25TKEW TZ42TKEW...
  • Page 82  Heating Characteristic [Condition] Room temperature: 20°C (DBT), 12°C (WBT) Operation condition: High fan speed Piping length: 5.0 m Voltage: 230V, 50Hz A) Indoor unit capacity: Heating (2.0 + 2.5 + 4.2), CS-TZ20TKEW + CS-TZ25TKEW + CS-TZ42TKEW TZ20TKEW TZ25TKEW TZ42TKEW 35.800 34.800 33.800...

  • Page 83: Exploded View And Replacement Parts List

    20. Exploded View and Replacement Parts List 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 84 SAFETY DESCRIPTION & NAME Q’TY CU-3TZ52TBE REMARK CHASSIS ASSY CWD52K1212 SOUND PROOF BOARD CWH151194 FAN MOTOR BRACKET CWD541127 SCREW - BRACKET FAN MOTOR CWH551217 CONDENSER COMPLETE CWB32C2680 FAN MOTOR, DC 60W 3PH EHDS80C60AC SCREW - FAN MOTOR MOUNT CWH551323 PROPELLER FAN ASSY...
  • Page 85 SAFETY DESCRIPTION & NAME Q’TY CU-3TZ52TBE REMARK TERMINAL BOARD ASSY CWA28K1196 CONTROL BOARD COVER CWH131333 CABINET TOP PLATE CWE031083A CONTROL BOARD COVER CWH13C1194 CABINET FRONT PLATE CWE06K1065 CABINET SIDE PLATE CWE041317A CABINET SIDE PLATE CWE041395A WIRE NET CWD041128A HANDLE CWE161010...

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