Panasonic CS-XZ7SKEW Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Air Conditioner
  5. CS-XZ7SKEW
  6. Service manual

Panasonic CS-XZ7SKEW Service Manual

Hide thumbs Also See for CS-XZ7SKEW:
Table of Contents

Advertisement

Quick Links

This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
CS-XZ7SKEW
CS-XZ9SKEW
CS-XZ12SKEW
CS-XZ18SKEW
Order No: PAPAMY1604028CE
Outdoor Unit
CU-Z7SKE
CU-Z9SKE
CU-Z12SKE
CU-Z18SKE
Destination
EU
E.Europe
L.America
Turkey
© Panasonic Corporation 2016

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CS-XZ7SKEW and is the answer not in the manual?

Questions and answers

Related Manuals for Panasonic CS-XZ7SKEW

Summary of Contents for Panasonic CS-XZ7SKEW

  • Page 1 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2016...
  • Page 2 CAUTION Before performing any of the electrical installation works, please verify on which of the intended connection use. Generally there are 2 types of indoor-outdoor connections: ○ Single Connection (Single Indoor Unit connects with Single Outdoor Unit) ○ Multiple Connection (Multiple Indoor Unit connect with Single Outdoor Unit) Both connections have different connecting methods.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS PAGE PAGE Safety Precautions ..........4 14.6 Quiet Operation (Heating) ......77         14.7 Powerful Mode Operation ......77     Precaution for Using R32 Refrigerant ....6     14.8 Timer Control ..........78  ...

  • Page 4: 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 5 WARNING Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock. 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.

  • Page 6: Precaution For Using R32 Refrigerant

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

  • Page 10: Specifications

    3. Specifications Indoor CS-XZ7SKEW CS-XZ9SKEW Model Outdoor CU-Z7SKE CU-Z9SKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.75 2.05 2.40 0.85 2.50 3.00 Capacity BTU/h 2560 6990 8180 2900...
  • Page 11 Indoor CS-XZ7SKEW CS-XZ9SKEW Model Outdoor CU-Z7SKE CU-Z9SKE 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 ASG20K1 ASG20K1 Motor Type DC / Transistor (8-poles) DC / Transistor (8-poles) Input Power 44.9...
  • Page 12 Indoor CS-XZ7SKEW CS-XZ9SKEW Model Outdoor CU-Z7SKE CU-Z9SKE Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8) Standard length m (ft) 5.0 (16.4) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 3 (9.8) ~ 15 (49.2)
  • Page 13 Indoor CS-XZ12SKEW CS-XZ18SKEW Model Outdoor CU-Z12SKE CU-Z18SKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 3.50 4.00 0.98 5.00 5.60 Capacity BTU/h 2900 11900 13600 3340 17100 19100 Kcal/h 3010 3440...
  • Page 14 Indoor CS-XZ12SKEW CS-XZ18SKEW Model Outdoor CU-Z12SKE CU-Z18SKE Type Hermetic Motor (Rotary) Hermetic Motor (Rotary) Compressor Motor Type Brushless (6 poles) Brushless (4 poles) Output Power Type Cross-Flow Fan Cross-Flow Fan Material ASG20K1 ASG20K1 Motor Type DC / Transistor (8-poles) DC / Transistor (8-poles) Input Power 44.9 44.9...
  • Page 15 Indoor CS-XZ12SKEW CS-XZ18SKEW Model Outdoor CU-Z12SKE CU-Z18SKE Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 12.70 (1/2) Standard length m (ft) 5.0 (16.4) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 3 (9.8) ~ 20 (65.6) I/D &...
  • Page 16 Example: The indoor units’ combination below is possible to connect to CU-2E15SBE. (Total nominal capacity of indoor units is between 3.2kW to 5.6kW) 1) Two CS-XZ7SKEW only. (Total nominal cooling capacity is 4.0kW) 2) One CS-XZ7SKEW and one CS-XZ9SKEW. (Total nominal cooling capacity is 4.5kW) Remarks for CU-3E23SBE 1. At least two indoor units must be connected.
  • Page 17 ● CS-MZ5SKE-M CS-Z7SKEW CS-E7SKEW CS-XE7SKEW 2.0kW ● ● ● ● ● ● ● ● ● ● ● ● ● CS-Z7SKEW-M CS-XZ7SKEW CS-E7SKEW-M CS-Z9SKEW CS-E9SKEW CS-XE9SKEW 2.5kW ● ● ● ● ● ● ● ● ● ● ● ● ● CS-XZ9SKEW...

  • Page 18: 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 15 meters (0.75 ~ 2.0HP) and 20 meters (2.25HP) during single split connection only ...

  • Page 19: Location Of Controls And Components

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

  • Page 20: Dimensions

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

  • Page 21: Outdoor Unit

    Outdoor Unit 6.2.1 CU-Z7SKE CU-Z9SKE <Top View> Space necessary for installation 67.6 (104.7) 570.3 104.9 60.5 10 cm 10 cm 100 cm 2-way valve at Liquid side Anchor Bolt Pitch (High Pressure) 320 x 570 3-way valve at Gas side (Low Pressure) <Side View>...
  • Page 22 6.2.3 CU-Z18SKE...

  • Page 23: Refrigeration Cycle Diagram

    7. Refrigeration Cycle Diagram CU-Z7SKE CU-Z9SKE CU-Z12SKE INDOOR OUTDOOR LIQUID EXPANSION TEMP. SIDE VALVE MUFFLER STRAINER SENSOR 2-WAY VALVE PIPE TEMP. INTAKE SENSOR 2 TEMP. SENSOR CONDENSER PIPE TEMP. PIPE SENSOR 1 TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE 4-WAYS VALVE 3-WAY MUFFLER VALVE...

  • Page 24: Cu-Z18Ske

    CU-Z18SKE INDOOR OUTDOOR LIQUID EXPANSION SIDE VALVE STRAINER 2-WAY PROCESS VALVE TUBE TEMP. PIPE SENSOR TEMP. CONDENSER INTAKE SENSOR 2 TEMP. SENSOR PIPE TEMP. PIPE SENSOR 1 TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE 4-WAYS VALVE 3-WAY RECEIVER VALVE TANK SENSOR COMPRESSOR COOLING HEATING...

  • Page 25: Block Diagram

    8. Block Diagram CU-Z7SKE CU-Z9SKE...

  • Page 26: Cu-Z12Ske

    CU-Z12SKE...

  • Page 27: Cu-Z18Ske

    CU-Z18SKE...

  • Page 28: Wiring Connection Diagram

    9. Wiring Connection Diagram Indoor Unit...

  • Page 29: Outdoor Unit

    Outdoor Unit 9.2.1 CU-Z7SKE CU-Z9SKE YELLOW TO INDOOR UNIT TERMINAL REACTOR BOARD BLUE TRADE MARK RAT2 RAT1 COMP. TERMINAL (GRY) (GRY) DATA OUTDOOR AIR TEMP. (RED) SENSOR (THERMISTOR) CN-TH1 NOISE (WHT) FILTER COMMUNICATION AC-BLK CIRCUIT PIPING TEMP. SENSOR CIRCUIT (BLK) (THERMISTOR) FUSE103 CN-TANK...
  • Page 30 9.2.2 CU-Z12SKE YELLOW (YEL) REMARKS BLU: BLUE TO INDOOR UNIT BLK: BLACK WHT: WHITE BLUE (BLU) RED (RED) RED: RED TERMINAL YLW: YELLOW (TRADEMARK) REACTOR BOARD GRY: GRAY COMPERSSOR TERMINAL GRN: GREEN THE PARENTHESIZED LETTERS IS ORG: ORANGE INDICATED ON TERMINAL COVER. RAT2 RAT1 DATA...
  • Page 31 9.2.3 CU-Z18SKE TO INDOOR UNIT YELLOW TERMINAL (BLK) (WHT) (RED) BOARD REACTOR BLUE TRADE MARK COMP. TERMINAL L2-I L2-O (GRAY) (GRAY) REMARKS COM3 (RED) BLU: BLUE COMMUNICATION ELECTRONIC CONTROLLER BLK: BLACK CIRCUIT WHT: WHITE RED: RED AC-BLK FUSE2 (BLACK) YLW: YELLOW (T3.15A L250V) GRY: GRAY SWITCHING...

  • Page 32: Electronic Circuit Diagram

    10. Electronic Circuit Diagram 10.1 Indoor Unit ELECTRONIC CONTROLLER (SUB) F303 CN-NANO 500mA (GRN) 0.1u R108 RY-PWR (WHT) (WHT) NANOE GENERATOR R109 4.7k RY-PWR2 4.7k 100mA TH303 1000p 100mA RY-PWR GROUNDING 20A 250V TERMINAL 20A 250V 1000p FUSE500 RY-PWR2 FUSE501 TERMINAL CN-DATA 1 BOARD...

  • Page 33: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 CU-Z7SKE CU-Z9SKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 (GRY) (GRY) C174 0.1µ ELECTRONIC EXPANSION CONTROLLER VALVE CN-STM DATA (RED) 15.8k 15.0k NOISE FILTER AC-BLK CIRCUIT (BLK) 1µ 1µ OUTDOOR TEMP. COMMUNICATION SENSOR (15kΩ 3950) CIRCUIT FUSE103 (20A 250V)
  • Page 34 10.2.2 CU-Z12SKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 CN-TH1 (GRY) (GRY) OUTDOOR AIR TEMP. SENSOR (WHT) (THERMISTOR) DATA (RED) tº 15.0k 15.8k tº PIPING TEMP. SENSOR NOISE FILTER COMMUNICATION AC-BLK 220u (THERMISTOR) CIRCUIT CIRCUIT (BLK) CN-TANK FUSE103 (WHT) RECTIFICATION (20A 250V) CIRCUIT...
  • Page 35 10.2.3 CU-Z18SKE TO INDOOR UNIT REACTOR TERMINAL (BLK) (WHT) (RED) BOARD L2-I L2-O (GRAY) (GRAY) COMP. TEMP. SENSOR R410 1µ 4.99k (THERMISTOR) COM3 (RED) (50kΩ 3950) COMMUNICATION OUTDOOR AIR TEMP. CIRCUIT SENSOR R101 R100 (THERMISTOR) 15.8k 15.0k AC-BLK (15kΩ 3950) (BLACK) FUSE3 1µ...

  • Page 36: Printed Circuit Board

    11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board AC303 CN-FM CN-DATA1 CN-CNT CN-STM1 CN-STM2 CN-STM3 CN-DATA2 CN-DISP CN-RMT CN-RCV CN-TH CN-MSENS JP1 (Random Auto Restart enable/disable)
  • Page 37 11.1.2 Indicator Printed Circuit Board LED205 LED203 LED201 LED206 LED204 LED202 CN-DISP 11.1.3 Receiver Printed Circuit Board CN-RCV 11.1.4 High Voltage Power Supply Printed Circuit Board...
  • Page 38 11.1.5 Sub Printed Circuit Board AC302 ACL501 ACN501 CN-DATA1 AC306 ACN502 CN-NANO CN-DATA2 11.1.6 Human Activity Sensor Printed Circuit Board 11.1.7 Comparator Printed Circuit Board CN-SENS2 CN-SENS1 CN-MSENS...

  • Page 39: Outdoor Unit

    11.2 Outdoor Unit 11.2.1 CU-Z7SKE CU-Z9SKE POWER TRANSISTOR (IPM) CURRENT TRANSFORMER CN-TANK (CT) CN-MTR1 CN-TH1 CN-STM CN-HOT AC-WHT AC-BLK CN-MTR2 DATA...
  • Page 40 11.2.2 CU-Z12SKE POWER TRANSISTOR (IPM) CURRENT TRANSFORMER CN-TANK (CT) CN-MTR1 CN-TH1 CN-STM CN-HOT AC-WHT AC-BLK CN-MTR2 DATA...
  • Page 41 11.2.3 CU-Z18SKE POWER TRANSISTOR (IPM) CURRENT TRANSFORMER (CT) CN-HOT CN-DCFM COM3 CN-TANK CN-EV CN-TH1 AC-BLK AC-WHT...

  • Page 42: Installation Instruction

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

  • Page 43: Indoor Unit

    12.2 Indoor Unit 12.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from vibration. Wall Wall Wall More than 1 More than 1 Indoor unit 2 screw More than Installation plate 1 266 mm 266 mm PIPE...
  • Page 44 12.2.3 Indoor Unit Installation ● Do not turn over the unit without it’s shock absorber during pull out the piping. It may cause intake grille damage. ● Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Shock absorber...
  • Page 45 Exchange the drain hose and the cap Rear view for left piping installation Connection cable Piping Drain hose More than 950 mm Connection cable Drain hose Drain cap Adjust the piping slightly Drain hose downwards. Sleeve for piping hole • •...
  • Page 46 Remove the tapes and connect the power supply cord and connection cable between indoor unit and outdoor unit according to the diagram below. Colour of wires (connection cable) Terminals on the indoor unit S1 2 (Power supply cord) (L) (N) Terminals on the isolating devices (Disconnecting means) Secure the power supply cord and connection cable onto the control board with the holder.
  • Page 47 12.2.4.1 Wire Stripping Connecting and Requirement Wire stripping RISK OF FIRE JOINING OF WIRES MAY CAUSE No loose strand WARNING OVERHEATING when inserted AND FIRE. Indoor/outdoor connection Do not joint wires terminal board 5 mm or more (gap between wires) Conductor Conductor over Conductor not...

  • Page 48: 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, screws or nails.
  • Page 49 AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 12.3.3 Evacuation of the Equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation. There is no extra refrigerant in the outdoor unit for air purging.
  • Page 50 12.3.4 Connect the Cable to the Outdoor Unit Remove the control board cover from the unit by loosening the screw. Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm (3/4 ~ 1.75HP) or 4 x 2.5 mm (2.0HP) flexible cord, type designation 60245 IEC 57 or heavier cord.
  • Page 51 12.3.6 How to Take Out Front Grille Please follow the steps below to take out front grille if Screw necessary such as when servicing. Set the vertical airflow direction louvers to the Front grille horizontal position. Remove the 2 caps on the front grille as Vane shown in the illustration at right, and then (Move the vane...

  • Page 52: 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 53 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 54: 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 55 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 56 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 57 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 58: New Installation, Relocation, Repairing Of Refrigerant Cycle System The Procedures

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

  • Page 59: 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 60: 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 61 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 62 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 63 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 64: 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 65 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 66 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 67 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 68 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 69 (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 70: 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 71 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 72: 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 73: 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 74: Outdoor Fan Motor Operation

    [Heating]  According to indoor pipe temperature, automatic heating fan speed is determined as follows. B. Feedback control  Immediately after the fan motor started, feedback control is performed once every second.  During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error counter increase, fan motor is then stop and restart.

  • 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 Closed Position Reference point 28° Reference point 128° 128° Step 1 Step 1 Step 2 Step 2 Step 3 Closed Step 3 Position Step 4 Step 4 Step 5 Step 5 Figure 2 14.4.2 Horizontal Airflow  Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below.

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

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

  • Page 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: Indication Panel

    14.11 Indication Panel POWER TIMER nanoe ECONAVI Color White White White White Light ON Operation ON Timer Setting ON nanoe ON ECONAVI ON Light OFF Operation OFF Timer Setting OFF nanoe OFF ECONAVI OFF Note:  If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling.
  • Page 80  Remote Control Receiving Sound Normal Operation  nanoe Operation : Beep nanoe Operation  Normal Operation : Beep Stop  nanoe individual Operation : Beep nanoe individual Operation  Stop : Long Beep  Power failure During nanoe individual operation, if power failure occurs, after power resumes, nanoe individual operation resumes immediately.

  • Page 81: Mild Dry Cooling Operation

    nanoe Discharge Abnormality Abnormal detection condition   After 30 minutes nanoe power ON, abnormal signal is being detected continuously for 5s. Action after abnormal detection condition fulfilled   Abnormal discharge counter +1, nanoe power OFF for 30 minutes and then restart. When abnormal discharge counter ≥...
  • Page 82 14.14.1 Human Activity Sensor  Area of human availability, activity level and absent is judged based on pulses by using 2 infrared sensors. The internal setting temperature shift, fan speed and horizontal airflow direction are adjusted in order to provide comfort environment while maintain the energy saving level.
  • Page 83 14.14.1.4 Human Position Analysis  According to Area of Living, frequency of activity and indoor unit intake temperature, the system will analyze the human position away from the indoor unit. 14.14.1.5 Target Area and Position Judgment  The system will judge the indoor unit installation position according to human activity Non-Living Area: Non-Living Area at Position A –...
  • Page 84 14.14.1.8 Setting Temperature and Fan Speed Shift ECONAVI ; Detecting human presence and activity, the unit controls room temperature to save energy. Human Mode Low activity Normal activity High activity Absent +2°C COOL/DRY +1°C temperature HEAT -2 °C -2 °C 14.14.1.9 Rhythmic Temperature Wave Operation ...
  • Page 85 14.14.1.10 ECONAVI Demo Mode  To enable ECO DEMO mode, during unit is OFF (power standby): Remote control normal mode Press continously for 5s Transmit ECO demo code and after 30 seconds return to normal mode. Transmit sunlight sensor check code and after 30 seconds return to normal mode.
  • Page 86 14.14.1.12 Human Activity Sensor Check Mode  To enable Human Activity sensor abnormality check mode, during ECONAVI operation ON: Remote control normal mode Press continously for 5s Transmit ECO demo code and after 30 seconds return to normal mode. Transmit sunlight sensor check code and after 30 seconds return to normal mode.
  • Page 87 14.14.2.2 Judge Sunlight Intensity  Based on sunlight sensor output voltage, the sunlight intensity value will be computed and logged to sunlight intensity database.  The sunlight sensor sensitivity could be adjusted: Remote control normal mode Press & release Press to choose No.2 Sensitivity Level 1: Less sensitive to sunlight intensity Default: (Battery insert) Sensitivity Level 3: Default sensitive level...
  • Page 88 14.14.2.5 Sunlight Sensor Check Mode  To enable sunlight sensor check mode, during unit is OFF (power standby): Remote control normal mode Press continously for 5s Transmit ECO demo code and after 30 seconds return to normal mode. Transmit sunlight sensor check code and after 30 seconds return to normal mode.

  • Page 89: Operation Control (For Multi Split Connection)

    15. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s operation controls are same with single split connection unless specified in this chapter. 15.1 Cooling operation 15.1.1 Thermostat control  Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting temperature <...

  • Page 90: Automatic Operation

    15.4 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature.  During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.

  • Page 91: Protection Control

    16. Protection Control 16.1 Protection Control for All Operations 16.1.1 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 92 Compressor = OFF 103°C 88°C Compressor Frequency Reduce 99°C 87°C Compressor Frequency Maintain 96°C 86°C Free Comp. temperature 16.1.5 Low Pressure Prevention Control (Gas Leakage Detection)  Control start conditions For 5 minutes, the compressor continuously operates and outdoor total current is between 0.75A and 0.95A (Z7/9/12SK), 1.38A and 1.65A (Z18SK).

  • Page 93: Protection Control For Cooling & Soft Dry Operation

    16.2 Protection Control for Cooling & Soft Dry Operation 16.2.1 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 94: Protection Control For Heating Operation

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

  • Page 95: Servicing Mode

    17. Servicing Mode 17.1 Auto OFF/ON Button AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds.

  • Page 96: 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 97: Remote Control Button

    17.2.2 Operation mode during Heating Only Operation  The table below shows the operation mode comparison when Heating Only Operation Mode Activated and Deactivated. Operation Heating Only Operation Mode Activated Heating Only Operation Mode Deactivated Mode After 30s sampling, the unit will judge the operation After 30s sampling, regardless of the indoor intake or mode base on remote controller temperature setting and AUTO...

  • Page 98: Troubleshooting Guide

    18. Troubleshooting Guide 18.1 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 99 18.1.1 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 100: Breakdown Self Diagnosis Function

    18.2 Breakdown Self Diagnosis Function 18.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  When the latest abnormality code on the main Once abnormality has occurred during operation, unit and code transmitted from the remote the unit will stop its operation, and Timer LED controller are matched, power LED will light blinks.

  • Page 101: Error Codes Table

    18.3 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 102 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 103: Self-Diagnosis Method

    18.4 Self-diagnosis Method 18.4.1 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 104 18.4.2 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 105 18.4.3 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 106 18.4.4 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 107 18.4.5 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 108 18.4.6 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 109 18.4.7 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 110 18.4.8 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 111 18.4.9 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 112 18.4.10 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 113 18.4.11 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 114 18.4.12 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 115 18.4.13 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 116 18.4.14 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 117 18.4.15 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 118 18.4.16 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) (Z7/9/12SKE) 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 119 18.4.17 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) (Z18SKE) 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 120 18.4.18 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 121 18.4.19 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 122 18.4.20 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 123 18.4.21 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 124 18.4.22 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 125 18.4.23 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 126 18.4.24 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 127 18.4.25 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 128 18.4.26 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 129 18.4.27 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 130 18.4.28 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 131 18.4.29 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 132: Disassembly And Assembly Instructions

    19. Disassembly and Assembly Instructions WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 19.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 19.1.1...
  • Page 133 19.1.2 To Remove Electronic Controller 3 Hooks (Top, left and right hand side) Remove control board cover by releasing 3 hooks. Figure 2 Remove earth wires. Pull out the 10. Detach all connectors as labelled from the electronic electronic controller. Then pull out the controller halfway.
  • Page 134 19.1.3 To Remove Discharge Grille Remove the screw and pull out the HVU unit. HVU unit Figure 6 12. Pull out and remove the drain hose from the discharge grille. 13. Then pull the discharge grille downward gently to dismantle it. Figure 7 19.1.4 To Remove Control Board...
  • Page 135 19.1.5 To Remove Cross Flow Fan and Indoor Fan Motor Figure 9 17. Remove the bearing by pulling it gently. 16. Remove the screw from the evaporator. Figure 10...
  • Page 136 Evaporator 18. Push the holdfast to the left and lift up the evaporator. 20. Fan motor can be removed after Cross flow fan the removal of the cross flow fan. Reminder: To reinstall the fan motor, adjust the fan motor connector to 90° towards you before fixing control board.
  • Page 137 19.1.6 To Assemble the Front Grille Receiver PCB CAUTION Do not directly fix the front grille complete, to avoid hitting the Receiver PCB. Figure 13 Gently assemble the right side of the front grille first then fix the left side. Figure 14...
  • Page 138 19.1.7 To Assemble the Intake Grille Hook Intake Grille Align the intake grille hooks into the slot. Hook Place in the hook to the slot. Then slightly bend the intake grille and push in the hooks into the slot. Figure 15...

  • Page 139: Outdoor Electronic Controller Removal Procedure

    19.2 Outdoor Electronic Controller Removal Procedure 19.2.1 CU-Z7SKE CU-Z9SKE Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove the Control Board as follows: Screws Top Panel Release 3 Terminal Screws Connectors, L, N and Earth Wire Screw.
  • Page 140 19.2.2 CU-Z12SKE 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. 4 Fig. 1 Remove the 8 screws of the Front Panel. Fig. 2 Fig.
  • Page 141 19.2.3 CU-Z18SKE Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 8 screws of the Top Panel. Remove the Control Board. Screws Top Panel Screws Screws Fig. 1 Remove the 8 screws of the Front Panel. Fig. 4 Screws Remove the 6 screws of the Electronic Controller.

  • Page 142: Technical Data

    Unit setting: Standard piping length, Hi Fan, Cool mode at 16°C Voltage: 230V 1.1.1 CS-XZ7SKEW/CU-Z7SKE Indoor (°C) Outdoor DB (°C) 19.0 2284 2077 330 2294 2090 328 2304 2059 330 2238 2072 384 2519 2236 262 2349 2186 348 2050 2017 450 22.0 2519 1671 334 2479 1669 363 2491 1665 353 2591 1708 306 2775 1816 251 2574 1716 344 2295 1609 452...
  • Page 143 1.1.4 CS-XZ18SKEW/CU-Z18SKE Indoor (°C) Outdoor DB (°C) 19.0 5570 3710 1100 5596 3733 1094 5619 3679 1100 5459 3701 1281 6145 3995 874 5729 3905 1161 5000 3603 1500 22.0 6144 2985 1113 6046 2982 1210 6076 2975 1177 6319 3051 1020 6768 3244 837 6277 3066 1147 5597 2874 1506 15.7 4975 3672 1178 5012 3657 1125 4962 3623 1231 4993 3596 1201 5537 3862 903 5135 3742 1171 4542 3584 1500 18.4 5501 2960 1101 5540 2955 1065 5578 2974 1101 5367 2922 1254 5884 3094 881 5602 3053 1162 5035 2864 1502 13.3 4419 3435 1347 4379 3390 1126 4727 3600 1178 4586 3474 1229 5208 3857 923 4730 3649 1176 4219 3419 1497...

  • Page 144: Heat Mode Performance Data

    Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 30°C Voltage: 230V 1.2.1 CS-XZ7SKEW/CU-Z7SKE Indoor (°C) Outdoor WB (°C) 1963 2166 2817 2615 2783 1966 2380 2900 2800 2896 1853 2455 2919 2989 3069 1.2.2 CS-XZ9SKEW/CU-Z9SKE Indoor (°C)

  • Page 145: Service Data

    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 21.1.1 CS-XZ7SKEW CU-Z7SKE 22.00 21.00 20.00 19.00 18.00 17.00 16.00...
  • Page 146 21.1.2 CS-XZ9SKEW CU-Z9SKE 16.00 14.00 12.00 Outdoor Air Temperature (°C) 3.00 2.80 2.60 2.40 2.20 2.00 1.80 1.60 1.40 1.20 1.00 Outdoor Air Temperature (°C) 1.40 1.30 1.20 1.10 1.00 0.90 0.80 Outdoor Air Temperature (°C)
  • Page 147 21.1.3 CS-XZ12SKEW CU-Z12SKE 14.50 14.00 13.50 13.00 12.50 12.00 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 0.85 0.80 Outdoor Air Temperature (°C)
  • Page 148 21.1.4 CS-XZ18SKEW CU-Z18SKE 18.0 17.0 16.0 15.0 14.0 13.0 12.0 11.0 10.0 Outdoor Air Temperature (°C) 9.00 8.00 7.00 6.00 5.00 4.00 3.00 2.00 Outdoor Air Temperature (°C) 0.90 0.80 0.70 Outdoor Air Temperature (°C)

  • Page 149: Heat Mode Outdoor Air Temperature Characteristic

    Indoor room temperature: 20°C Dry Bulb/ -°C Wet Bulb Unit setting: Standard piping length, forced heating at 30°C, Hi fan Compressor frequency: Rated for Heating operation Piping length: 5m Voltage: 230V 21.2.1 CS-XZ7SKEW CU-Z7SKE Outdoor Air Temperature (°C) 3.20 3.00 2.80 2.60 2.40...
  • Page 150 21.2.2 CS-XZ9SKEW CU-Z9SKE Outdoor Air Temperature (°C) 3.70 3.50 3.30 3.10 2.90 2.70 2.50 2.30 2.10 Outdoor Air Temperature (°C) 2.80 2.60 2.40 2.20 2.00 1.80 1.60 1.40 1.20 1.00 0.80 Outdoor Air Temperature (°C)
  • Page 151 21.2.3 CS-XZ12SKEW CU-Z12SKE Outdoor Air Temperature (°C) 5.00 4.50 4.00 3.50 3.00 2.50 Outdoor Air Temperature (°C) 2.80 2.60 2.40 2.20 2.00 1.80 1.60 1.40 Outdoor Air Temperature (°C)
  • Page 152 21.2.4 CS-XZ18SKEW CU-Z18SKE 70.00 65.00 60.00 55.00 50.00 45.00 40.00 35.00 30.00 25.00 -16 -14 -12 -10 Outdoor Air Temperature (°C) 11.00 10.00 9.00 8.00 7.00 6.00 5.00 4.00 3.00 -16 -14 -12 -10 Outdoor Air Temperature (°C) 6.00 5.50 5.00 4.50 4.00...

  • Page 153: Piping Length Correction Factor

    21.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 21.3.1 CS-XZ7SKEW CU-Z7SKE CS-XZ9SKEW CU-Z9SKE CS-XZ12SKEW CU-Z12SKE 1.02 1.00 0.98 0.96 0.94 0.92 10 11 12 13 14 15 16 Pipe Length (m) 1.04...
  • Page 154 21.3.2 CS-XZ18SKEW CU-Z18SKE 1.03 1.01 0.99 0.97 0.95 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Pipe Length (m) 1.01 1.01 1.00 1.00 0.99 0.99 0.98 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Pipe Length (m) Note: The graphs show the factor after added right amount of additional refrigerant.

  • Page 155: Exploded View And Replacement Parts List

    22. Exploded View and Replacement Parts List 22.1 Indoor Unit CWH55025J CWH55051J Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 156 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-XZ7SKEW CS-XZ9SKEW REMARK CHASSIS COMPLETE CWD50C1605 ← FAN MOTOR L6CBYYYL0037 ← CROSS-FLOW FAN COMPLETE CWH02C1076 ← BEARING ASSY CWH64K1010 ← SCREW - CROSS-FLOW FAN CWH551146 ← PARTICULAR PIECE CWD933067A ← EVAPORATOR CWB30C4659...
  • Page 157 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-XZ12SKEW CS-XZ18SKEW REMARK CHASSIS COMPLETE CWD50C1605 ← FAN MOTOR L6CBYYYL0037 ← CROSS-FLOW FAN COMPLETE CWH02C1076 ← BEARING ASSY CWH64K1010 ← SCREW - CROSS-FLOW FAN CWH551146 ← PARTICULAR PIECE CWD933067A ← EVAPORATOR ACXB30C00920 ACXB30C01160 FLARE NUT (LIQUID) CWT251030...

  • Page 158: Outdoor Unit

    22.2 Outdoor Unit 22.2.1 CU-Z7SKE CU-Z9SKE 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 159 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z7SKE CU-Z9SKE REMARK CHASSIS COMPLETE CWD52K1399 ← SOUND PROOF MATERIAL (TOP) CWG302314 ← FAN MOTOR BRACKET CWD541157 ← SCREW - FAN MOTOR BRACKET CWH551217 ← FAN MOTOR ARS6411AC ← SCREW - FAN MOTOR MOUNT CWH55252J ←...
  • Page 160 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z7SKE CU-Z9SKE REMARK INSTALLATION INSTRUCTION ACXF60-01970 ← INSTALLATION INSTRUCTION ACXF60-01980 ← INSTALLATION INSTRUCTION ACXF60-01990 ← INSTALLATION INSTRUCTION ACXF60-02000 ← INSTALLATION INSTRUCTION ACXF60-02010 ← INSTALLATION INSTRUCTION ACXF60-02020 ← INSTALLATION INSTRUCTION ACXF60-02030 ← (NOTE) ...
  • Page 161 22.2.2 CU-Z12SKE 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. CU-Z12SKE REMARK CHASSIS COMPLETE CWD52K1277 SOUND PROOF MATERIAL (TOP) CWG302719 FAN MOTOR BRACKET CWD541167 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR ARS6411AC SCREW - FAN MOTOR MOUNT CWH55252J PROPELLER FAN ASSY CWH03K1066 NUT - PROPELLER FAN CWH56053J...
  • Page 163 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z12SKE REMARK INSTALLATION INSTRUCTION ACXF60-01970 INSTALLATION INSTRUCTION ACXF60-01980 INSTALLATION INSTRUCTION ACXF60-01990 INSTALLATION INSTRUCTION ACXF60-02000 INSTALLATION INSTRUCTION ACXF60-02010 INSTALLATION INSTRUCTION ACXF60-02020 INSTALLATION INSTRUCTION ACXF60-02030 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). ...
  • Page 164 22.2.3 CU-Z18SKE 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. CU-Z18SKE REMARK CHASSIS COMPLETE CWD52K1261 ANTI - VIBRATION BUSHING CWH50077 COMPRESSOR 9RD132XAA21 NUT - COMPRESSOR MOUNT CWH561096 SOUND PROOF MATERIAL CWG302744 FAN MOTOR BRACKET CWD541153 FAN MOTOR ARW8401AC SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH551106J...
  • Page 166 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z18SKE REMARK INSTALLATION INSTRUCTION ACXF60-01960 INSTALLATION INSTRUCTION ACXF60-01970 INSTALLATION INSTRUCTION ACXF60-01980 INSTALLATION INSTRUCTION ACXF60-01990 INSTALLATION INSTRUCTION ACXF60-02000 INSTALLATION INSTRUCTION ACXF60-02010 INSTALLATION INSTRUCTION ACXF60-02020 INSTALLATION INSTRUCTION ACXF60-02030 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). ...

This manual is also suitable for:

Cs-xz9skewCs-xz12skewCs-xz18skewCu-z7skeCu-z9skeCu-z12ske ... Show all

Table of Contents