Page 1 – 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 2019...
Page 2: Table Of Contents
CS-PZ25VKE CS-PZ35VKE 11.1 Indoor Unit ..........46 CS-UZ25VKE CS-UZ35VKE ....133 11.2 Outdoor Unit ..........49 18.2 CS-DZ50VKE CS-PZ50VKE 12. Installation Instruction ........51 CS-UZ50VKE .......... 138 18.3 Outdoor Electronic Controller Removal 12.1 Select the Best Location ......51 Procedure ..........143 12.2...
Page 3: Safety Precautions
1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Confirm the type of gas used before installation.  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed.
Page 4 WARNING Engage authorized dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water leakage, electrical shock or fire. For refrigeration system work, Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
Page 5 CAUTION Select an installation location which is easy for maintenance. Incorrect installation, service or repair of this air conditioner may increase the risk of rupture and this may result in loss damage or injury and/or property. Power supply connection to the room air conditioner. Use power supply cord 3 x 1.5 mm (1.0 ~ 1.5HP), 3 x 2.5 mm (2.0HP) type designation 60245 IEC 57 or heavier cord.
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 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 7 CAUTION Installation (Space)  Must ensure the installation of pipe-work shall be kept to a minimum. Avoid use dented pipe and do not allow acute bending.  Must ensure that pipe-work shall be protected from physical damage.  Must comply with national gas regulations, state municipal rules and legislation. Notify relevant authorities in accordance with all applicable regulations.
Page 8 CAUTION 2-5. 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 9 CAUTION The following leak detection methods are deemed acceptable for all refrigerant systems.  No leaks shall be detected when using detection equipment with a capability of 10 Pa•m /s or better, for example, a helium sniffer.  Electronic leak detectors may be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need recalibration.
Page 10 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 11: Specifications
3. Specifications Indoor Model CS-DZ25VKE CS-DZ35VKE Outdoor Model CU-DZ25VKE CU-DZ35VKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 2.50 3.00 0.85 3.40 3.90 Capacity BTU/h 2900 8530 10200 2900 11600 13300...
Page 12 Indoor Model CS-DZ25VKE CS-DZ35VKE Outdoor Model CU-DZ25VKE CU-DZ35VKE 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 (8-poles) DC (8-poles) Input Power 47.3 47.3...
Page 13 Indoor Model CS-DZ25VKE CS-DZ35VKE Outdoor Model CU-DZ25VKE CU-DZ35VKE Height mm (inch) 290 (11-7/16) / 542 (21-11/32) 290 (11-7/16) / 542 (21-11/32) (I/D / O/D) Width Dimension Unit mm (inch) 850 (33-15/32) / 780 (30-23/32) 850 (33-15/32) / 780 (30-23/32) (I/D / O/D) Depth mm (inch) 199 (7-27/32) / 289 (11-13/32)
Page 14 Indoor Model CS-DZ50VKE Outdoor Model CU-DZ50VKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.98 5.00 5.40 Capacity BTU/h 3340 17100 18400 kcal/h 4300 4640 Running Current – 7.60 – Input Power 1.68k 1.89k Annual Consumption –...
Page 15 Indoor Model CS-DZ50VKE Outdoor Model CU-DZ50VKE Type Hermetic Motor / Rotary Compressor Motor Type Brushless (4-poles) Output Power Type Cross-flow Fan Material ASG20K1 Motor Type DC (8-poles) Input Power 47.3 Output Power Cool Heat Cool Heat 1030 Cool 1090 Speed...
Page 16 Indoor Model CS-DZ50VKE Outdoor Model CU-DZ50VKE Height mm (inch) 290 (11-7/16) / 619 (24-3/8) (I/D / O/D) Width Dimension Unit mm (inch) 870 (34-9/32) / 824 (32-15/32) (I/D / O/D) Depth mm (inch) 214 (8-7/16) / 299 (11-25/32) (I/D / O/D)
Page 17 Indoor Model CS-PZ25VKE CS-PZ35VKE Outdoor Model CU-PZ25VKE CU-PZ35VKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 2.50 3.00 0.85 3.40 3.90 Capacity BTU/h 2900 8530 10200 2900 11600 13300 kcal/h 2150...
Page 18 Indoor Model CS-PZ25VKE CS-PZ35VKE Outdoor Model CU-PZ25VKE CU-PZ35VKE 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 (8-poles) DC (8-poles) Input Power 47.3 47.3...
Page 19 Indoor Model CS-PZ25VKE CS-PZ35VKE Outdoor Model CU-PZ25VKE CU-PZ35VKE Height mm (inch) 290 (11-7/16) / 542 (21-11/32) 290 (11-7/16) / 542 (21-11/32) (I/D / O/D) Width Dimension Unit mm (inch) 850 (33-15/32) / 780 (30-23/32) 850 (33-15/32) / 780 (30-23/32) (I/D / O/D) Depth mm (inch) 199 (7-27/32) / 289 (11-13/32)
Page 20 Indoor Model CS-PZ50VKE Outdoor Model CU-PZ50VKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.98 5.00 5.40 Capacity BTU/h 3340 17100 18400 kcal/h 4300 4640 Running Current – 7.60 – Input Power 1.68k 1.89k Annual Consumption –...
Page 21 Indoor Model CS-PZ50VKE Outdoor Model CU-PZ50VKE Type Hermetic Motor / Rotary Compressor Motor Type Brushless (4-poles) Output Power Type Cross-flow Fan Material ASG20K1 Motor Type DC (8-poles) Input Power 47.3 Output Power Cool Heat Cool Heat 1030 Cool 1090 Speed Heat 1170 Cool...
Page 22 Indoor Model CS-PZ50VKE Outdoor Model CU-PZ50VKE Height mm (inch) 290 (11-7/16) / 619 (24-3/8) (I/D / O/D) Width Dimension Unit mm (inch) 870 (34-9/32) / 824 (32-15/32) (I/D / O/D) Depth mm (inch) 214 (8-7/16) / 299 (11-25/32) (I/D / O/D) Weight Net (I/D / O/D) kg (lb)
Page 23 Indoor Model CS-UZ25VKE CS-UZ35VKE Outdoor Model CU-UZ25VKE CU-UZ35VKE Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 2.50 3.00 0.85 3.30 3.80 Capacity BTU/h 2900 8530 10200 2900 11300 13000 kcal/h 2150...
Page 24 Indoor Model CS-UZ25VKE CS-UZ35VKE Outdoor Model CU-UZ25VKE CU-UZ35VKE 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 (8-poles) DC (8-poles) Input Power 47.3 47.3...
Page 25 Indoor Model CS-UZ25VKE CS-UZ35VKE Outdoor Model CU-UZ25VKE CU-UZ35VKE Height mm (inch) 290 (11-7/16) / 542 (21-11/32) 290 (11-7/16) / 542 (21-11/32) (I/D / O/D) Width Dimension Unit mm (inch) 850 (33-15/32) / 780 (30-23/32) 850 (33-15/32) / 780 (30-23/32) (I/D / O/D) Depth mm (inch) 199 (7-27/32) / 289 (11-13/32)
Page 26 Indoor Model CS-UZ50VKE Outdoor Model CU-UZ50VKE Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.98 5.00 5.40 Capacity BTU/h 3340 17100 18400 kcal/h 4300 4640 Running Current – 7.50 – Input Power 1.65k 1.86k Annual Consumption –...
Page 27 Indoor Model CS-UZ50VKE Outdoor Model CU-UZ50VKE Type Hermetic Motor / Rotary Compressor Motor Type Brushless (4-poles) Output Power Type Cross-flow Fan Material ASG20K1 Motor Type DC (8-poles) Input Power 47.3 Output Power Cool Heat Cool Heat 1030 Cool 1090 Speed Heat 1170 Cool...
Page 28 Indoor Model CS-UZ50VKE Outdoor Model CU-UZ50VKE Height mm (inch) 290 (11-7/16) / 619 (24-3/8) (I/D / O/D) Width Dimension Unit mm (inch) 870 (34-9/32) / 824 (32-15/32) (I/D / O/D) Depth mm (inch) 214 (8-7/16) / 299 (11-25/32) (I/D / O/D) Weight Net (I/D / O/D) kg (lb)
Page 29: 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  Easy to use remote control ...
Page 30: Location Of Controls And Components
5. Location of Controls and Components Indoor Unit Air Purifying Filter (CS-UZ25/35VKE) Auto OFF/ON button Front panel • Use when remote control is misplaced or malfunction occurs. Vertical Airflow Aluminium Fin direction louver • Do not adjust by hand. INDICATOR POWER (Green) Horizontal Airflow TIMER (Orange)
Page 31: Dimensions
6. Dimensions Indoor Unit & Remote Control 6.1.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE <Top View> <Side View> <Side View> Air intake <Front View> direction Air outlet Right direction piping Left hole piping hole <Bottom View> <Remote Control> FAN SPEED <Rear View>...
Page 32 6.1.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE <Top View> <Side View> <Side View> Air intake <Front View> direction Air outlet Right Left direction piping piping hole hole <Bottom View> <Remote Control transmitter> FAN SPE ED <Back View> Gas side Liquid side <Remote Control Holder>...
Page 33: Outdoor Unit
Outdoor Unit 6.2.1 CU-DZ25VKE CU-DZ35VKE CU-PZ25VKE CU-PZ35VKE CU-UZ25VKE CU-UZ35VKE <Top View> 67.6 (104.7) 570.3 104.9 60.5 Space necessary for installation 100 mm 100 mm 1000 mm Anchor Bolt Pitch 320 × 570 <Side View> <Side View> <Front View> 3-way valve at Gas side Unit : mm (Low Pressure) 2-way valve at Liquid side...
Page 34 6.2.2 CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE <Top View> Space necessary for installation 100mm 100mm 1000mm Anchor Bolt Pitch 330 × 540 <Side View> <Side View> <Front View> 3-way valve at Gas side Unit : mm 2-way valve at Liquid side (Low Pressure) (High Pressure)
Page 35: Refrigeration Cycle Diagram
7. Refrigeration Cycle Diagram INDOOR OUTDOOR PIPE LIQUID TEMP. EXPANSION SIDE SENSOR VALVE MUFFLER STRAINER (FOR 2-WAY UZ25/35/50VK VALVE ONLY) PIPE INTAKE TEMP. SENSOR 1 TEMP. HEAT EXCHANGER SENSOR TEMP. (CONDENSER) SENSOR PIPE TEMP. SENSOR 2 HEAT EXCHANGER (EVAPORATOR) PIPE TEMP.
Page 36: Block Diagram
8. Block Diagram CS-DZ25VKE CU-DZ25VKE CS-DZ35VKE CU-DZ35VKE CS-PZ25VKE CU-PZ25VKE CS-PZ35VKE CU-PZ35VKE CS-UZ25VKE CU-UZ25VKE CS-UZ35VKE CU-UZ35VKE...
Page 37: Cs-Dz50Vke Cu-Dz50Vke Cs-Pz50Vke Cu-Pz50Vke Cs-Uz50Vke Cu-Uz50Vke
CS-DZ50VKE CU-DZ50VKE CS-PZ50VKE CU-PZ50VKE CS-UZ50VKE CU-UZ50VKE...
Page 38: Wiring Connection Diagram
9. Wiring Connection Diagram Indoor Unit 9.1.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE GROUNDING TERMINAL ELECTRONIC CONTROLLER (MAIN) SW01 TERMINAL CN-RMT BOARD (WHT) FUSE301 T3.15A L250V RY-PWR2 AC303 UP DOWN (WHT) CN-STM1 LOUVER MOTOR (WHT) AC304 TEMP. (RED) FUSE G301 OUTDOOR 102°C (4.5A) NOISE...
Page 39 9.1.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE GROUNDING TERMINAL ELECTRONIC CONTROLLER (MAIN) SW01 TERMINAL CN-CNT BOARD (WHT) FUSE301 T3.15A L250V RY-PWR2 AC303 CN-RMT (WHT) (WHT) TEMP. AC304 FUSE (RED) 102°C (3A) TEMP. G301 OUTDOOR NOISE FUSE (GRN) UNIT FILTER 102°C (3A) CIRCUIT UP DOWN...
Page 40: Outdoor Unit
Outdoor Unit 9.2.1 CU-DZ25VKE CU-DZ35VKE CU-PZ25VKE CU-PZ35VKE CU-UZ25VKE CU-UZ35VKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 OUTDOOR AIR TEMP. (GRY) (GRY) SENSOR FUSE105 (THERMISTOR) (15A 250V) DATA t° (RED) CN-TH (WHT) t° NOISE PIPING TEMP. SENSOR FILTER (THERMISTOR) COMMUNICATION AC-BLK CIRCUIT CIRCUIT...
Page 41 9.2.2 CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 (GRY) (GRY) FUSE6 (20A 250V) OUTDOOR AIR TEMP. DATA SENSOR (RED) (THERMISTOR) COMMUNICATION CIRCUIT CN-TH1 NOISE (WHT) FILTER AC-BLK CIRCUIT FUSE8 PIPING TEMP. SENSOR (BLK) T3.15A (THERMISTOR) L250V FUSE1 RECTIFICATION CN-TANK...
Page 42: Electronic Circuit Diagram
10. Electronic Circuit Diagram 10.1 Indoor Unit 10.1.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE GROUNDING TERMINAL ELECTRONIC CONTROLLER (MAIN) TERMINAL SW01 BOARD FUSE301 COM IC03 T3.15A L250V RY-PWR2 AC303 IC03 (WHT) IC03 IC03 AC304 TEMP. IC03 (RED) CN-STM1 FUSE UP DOWN WHITE G301 OUTDOOR...
Page 43 10.1.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE ELECTRONIC CONTROLLER (MAIN) SW01 (FOR DZ/PZ50VK ONLY) SUCTION TEMP. SENSOR (THERMISTOR) (15k, 3950) t° GROUNDING t° TERMINAL PIPING CN-TH TEMP. SENSOR TERMINAL (THERMISTOR) BOARD (20k, 3950) 1µ 1µ 15.0k 20.0k FUSE301 T3.15A L250V RY-PWR2 (FOR UZ50VK ONLY)
Page 44: Outdoor Unit
10.2 Outdoor Unit 10.2.1 CU-DZ25VKE CU-DZ35VKE CU-PZ25VKE CU-PZ35VKE CU-UZ25VKE CU-UZ35VKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 (GRY) (GRY) R205 R206 OUTDOOR AIR TEMP. R207 R208 ELECTRONIC SENSOR C204 C205 CONTROLLER (THERMISTOR) t° t° PIPING TEMP. SENSOR (THERMISTOR) FUSE105 (15A 250V) DATA (RED)
Page 45 10.2.2 CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE TO INDOOR UNIT REACTOR TERMINAL BOARD RAT2 RAT1 (GRY) (GRY) FUSE6 (20A 250V) 15.8k DATA (RED) 470µ COMMUNICATION 1µ OUTDOOR AIR TEMP. 1µ CIRCUIT NOISE SENSOR (15kΩ 3950) FILTER AC-BLK CIRCUIT t° FUSE8 (BLK) T3.15A t° L250V FUSE1 RECTIFICATION...
Page 46: Printed Circuit Board
11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board 11.1.1.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE AC304 AC303 G301 RY-PWR CN-FM CN-STM1 CN-RMT CN-DISP1 CN-CNT CN-TH JP1 (Random Auto Restart enable/disable)
Page 47 11.1.1.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE AC304 AC303 G301 RY-PWR CN-FM CN-CNT CN-RMT CN-STM1 CN-DISP CN-TH JP1 (Random Auto Restart enable/disable)
Page 48 11.1.2 Indicator & Receiver Printed Circuit Board 11.1.2.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE CN-DISP 11.1.2.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE CN-DISP...
Page 49: Outdoor Unit
11.2 Outdoor Unit 11.2.1 Main Printed Circuit Board 11.2.1.1 CU-DZ25VKE CU-DZ35VKE CU-PZ25VKE CU-PZ35VKE CU-UZ25VKE CU-UZ35VKE POWER TRANSISTOR (IPM) CN-MTR2 CN-MTR1 CN-HOT CN-TH CN-TANK CN-STM AC-WHT DATA AC-BLK...
Page 50 11.2.1.2 CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE POWER TRANSISTOR (IPM) CN-MTR2 CURRENT TRANSFORMER (CT) CN-MTR1 CN-STM1 CN-TH1 CN-HOT CN-TANK DATA AC-WHT AC-BLK...
Page 51: Installation Instruction
12. Installation Instruction 12.1 Select the Best Location ** The required minimum room area, A , shall also 12.1.1 Indoor Unit be governed by the safety factor margin formula below :  Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.
Page 52: Indoor Unit
12.2 Indoor Unit 12.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from vibration. Ceiling Wall Wall More than 1 More than 1 More than 2 2 screw Indoor unit Installation 228 mm plate 1 228 mm...
Page 53 12.2.2 To Drill a Hole in the Wall and Install a Sleeve of Piping Wall Insert the piping sleeve to the hole. Indoor Outdoor Fix the bushing to the sleeve. Cut the sleeve until it extrudes about 15 mm 15 mm Approx.
Page 54 12.2.3 Indoor Unit Installation ● Do not turn over the unit without it’s shock absorber during pull out the piping. It may cause intake grille damage. ● Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Intake grille...
Page 55 Exchange the drain hose and 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 • • How to pull the piping and drain hose out, in case of the In case of left piping how to insert the embedded piping.
Page 56 Terminal Board Recommended Control length (mm) 55 35 35 50 40 35 60 Board Earth Wire longer Earth Wire than longer than others others AC AC wires wires for for safety Recommended safety reason reason length (mm) Holder Holder Power supply Indoor &...
Page 57: 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 58 AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 12.3.1 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 59 12.3.2 Connect the Cable to the Outdoor Unit Remove the control board cover from the unit by loosening the screw. Terminal Board Connection cable between indoor unit and Earth wire outdoor unit shall be approved longer than polychloroprene sheathed 4 × 1.5 mm others (1.0 ~ 1.5HP) or 4 ×...
Page 60 12.3.5 How to Take Out Front Grille Please follow the steps below to take out front grille if necessary such as when servicing. Set the vertical airflow direction louvers to the horizontal position. Slide down the 2 caps (1.0 ~ 2.0HP) on the front grille as shown in the illustration at right, and then remove the 2 (1.0 ~ 2.0HP) mounting screws.
Page 61 12.3.8 Check the Drainage  Open front panel and remove air filters. (Drainage checking can be carried out without removing the front grille.)  Pour a glass of water into the drain tray-styrofoam.  Ensure that water flows out from drain hose of the indoor unit. Drain tray-styrofoam 12.3.9 Evaluation of the Performance...
Page 62: 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 63 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 64: 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 65 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 66 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 67 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 68: 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 69: 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 70: 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 71 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 72 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 73 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 74: 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 75 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 76 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 77 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 78 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 79 (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 80: 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 81 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 82: 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 83: 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 84: 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 85 Vane Angle (°) Operation Mode Usual (Ventilation) 5 ~ 35 Auto Control with dew 5 ~ 35 Cooling Usual (Ventilation) 12.5 27.5 Manual Control with dew 12.5 27.5 Usual 5 ~ 35 Auto Control with dew 5 ~ 35 Usual 12.5 27.5 Manual...
Page 86: Timer Control
14.5 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. 14.5.1 ON Timer Control ...
Page 87: Sleep Mode Operation
14.6 Sleep Mode Operation This operation provide comfortable environment while sleeping. It will automatically adjust the sleep pattern temperature during the activation period. SLEEP (Cancel) This operation is incorporated with the activation timer (0.5, 1, 2, 3, 4, 5, 6, 7, 8 or 9 hours). Start Condition: ...
Page 88: Random Auto Restart Control
 Sleep operation will not undergo temperature shift when it collaborate with below operation. However, it will execute the delay timer. Powerful mode operation Auto mode operation Stop Condition:  When sleep operation is cancel by pressing respective button until sleep timer reaches 0.0h. ...
Page 89: Quiet Operation (Heating)
14.10 Quiet Operation (Heating) A. Purpose To provide quiet heating operation compare to normal operation. B. Control condition a. Quiet operation start condition When “POWERFUL/QUIET” button at remote control is pressed twice. QUIET will be shown on remote control display. b.
Page 90: Protection Control
15. Protection Control 15.1 Protection Control for All Operations 15.1.1 Restart Control (Time Delay Safety Control)  The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. ...
Page 91 15.1.4 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.  If compressor discharge temperature exceeds 103°C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.
Page 92: Protection Control For Cooling & Soft Dry Operation
15.2 Protection Control for Cooling & Soft Dry Operation 15.2.1 Outdoor Air Temperature Control  The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  This control will begin 1 minute after the compressor starts. ...
Page 93: Protection Control For Heating Operation
15.2.5 Dew Prevention Control 1  To prevent dew formation at indoor unit discharge area.  This control will be activated if: Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. When Cooling or Dry mode is operated more than 20 minutes or more. ...
Page 94 15.3.5 Cold Draught Prevention Control  When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced. 15.3.6 Deice Operation  When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks.
Page 95: Servicing Mode
16. Servicing Mode 16.1 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
16.2.2 Operation mode during Heating only Operation  The table below shows the operation mode comparison when Heating Only Operation Mode Activated and Deactivated. Operation Mode Heating Only Operation Mode Activated Heating Only Operation Mode Deactivated 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 16.3.3 RESET (AC)  To restore the unit’s setting to factory default. Press once to restore the unit’s setting. 16.3.4 TIMER ▲  To change indoor unit indicator’s LED intensity. Press continuously for 5 seconds. 16.3.5 TIMER ▼  To change remote control display from Degree Celsius (°C) to Degree Fahrenheit (°F). Press continuously for 10 seconds.
Page 99 To enter zone 2 area: (Press continuosly for T ≥ 5 secs) Once T ≥ 5secs Normal display Enter Zone1 Enter Zone2 mode [range (50~99)] Function & Options list: Note: The functions described in the table may not be applicable to the model and may subject to change without further notice.
Page 100: Troubleshooting Guide
17. Troubleshooting Guide 17.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no Normal Pressure and Outlet Air Temperature (Standard) electrical problems before inspecting the refrigeration cycle. Gas pressure Outlet air temperature Such problems include insufficient insulation, problem with the (kg/cm (°C) power source, malfunction of a compressor and a fan.
Page 101: Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current
17.2 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 102: Breakdown Self Diagnosis Function
17.3 Breakdown Self Diagnosis Function 17.3.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  Every press of the button (up or down) will Once abnormality has occurred during operation, increase abnormality numbers and transmit the unit will stop its operation, and Timer LEDs abnormality code signal to the main unit.
Page 103: Error Codes Table
17.4 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 104 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 105: Self-Diagnosis Method
17.5 Self-diagnosis Method 17.5.1 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 106 17.5.2 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 107 17.5.3 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 108 17.5.4 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 109 17.5.5 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 110 17.5.6 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 > 2550rpm or < 50rpm). Malfunction Caused ...
Page 111 17.5.7 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 112 17.5.8 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 113 17.5.9 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 114 17.5.10 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 115 17.5.11 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 116 17.5.12 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 117 17.5.13 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 118 17.5.14 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 119 17.5.15 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 120 17.5.16 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused  Operation stops due to short circuit inside the fan motor winding. ...
Page 121 17.5.17 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions  Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
Page 122 17.5.18 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C) Malfunction Caused ...
Page 123 17.5.19 F11 (4-way valve Abnormality) 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 124 17.5.20 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions  When the different between indoor intake air temperature and indoor pipe temperature is above 10°C or indoor pipe temperature is below -1.0°C. Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
Page 125 17.5.21 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  To maintain DC voltage level supply to power transistor.  To detect high DC voltage level after rectification. Malfunction Caused  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
Page 126 17.5.22 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused  Lack of gas.  3-way valve close. Troubleshooting...
Page 127 17.5.23 F93 (Compressor Rotation Failure) Malfunction Decision Conditions  A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused  Compressor terminal disconnect  Faulty Outdoor PCB  Faulty compressor Troubleshooting...
Page 128 17.5.24 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions  During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
Page 129 17.5.25 F96 (IPM Overheating) Malfunction Decision Conditions  During operating of cooling and heating, when IPM temperature data (120°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 130 17.5.26 F97 (Compressor Overheating) Malfunction Decision Conditions  During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the compressor tank temperature sensor. Malfunction Caused  Faulty compressor tank temperature sensor  2/3 way valve closed ...
Page 131 17.5.27 F98 (Input Over Current Detection) Malfunction Decision Conditions  During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.
Page 132 17.5.28 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused  DC current peak due to compressor failure. ...
Page 133: Disassembly And Assembly Instructions
18. Disassembly and Assembly Instructions WARNING High Voltage 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. 18.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE 18.1.1...
Page 134 Detach connector as labeled from the Pull out the main electronic controller electronic controller, then pull out the halfway. main controller gently. G301 AC304 AC303 Detach the Earth wire screw. RY-PWR CN-FM Detach the CN-DISP connector then remove the indicator PCB complete. Remove the screw to dismantle CN-STM1 the terminal board complete.
Page 135 18.1.1.4 To Remove Control Board 12. Remove 4 screws holding the control board together then pull out the control board. Figure 6 18.1.1.5 To Remove Cross Flow Fan and Indoor Fan Motor Remove stepping motor lead wire connectors. Pull out to remove the drain hose from the Discharge Grille.
Page 136 Remove the screw that holds the cross flow fan and the fan motor shaft. Figure 8 Remove the bearing by pulling it out gently. Remove the screw from the evaporator. Figure 9...
Page 137 19. Push the holdfast to the left and lift up the evaporator. Evaporator 20. Remove the cross flow fan from 21. Fan motor can be removed after the the unit by pulling it to the left and removal of cross flow fan. downward.
Page 138: Cs-Dz50Vke Cs-Pz50Vke Cs-Uz50Vke
High Voltage 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. 18.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE 18.2.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 18.2.1.1...
Page 139 Pull out the main Detach connectors as labeled from the electronic controller electronic controller. Then pull out main halfway. controller gently. AC304 AC303 G301 Detach the earth wire connection. RY-PWR Remove screw Terminal Board complete and earth wire. CN-FM Detach the CN-DISP CN-CNT connector then remove the indicator complete.
Page 140 18.2.1.4 To Remove Control Board 12. Remove 4 screws holding the control board and then pull out the control board. Figure 6 18.2.1.5 To Remove Cross Flow Fan and Indoor Fan Motor Remove the screw that holding the cross flow fan and fan motor shaft. Figure 7...
Page 141 Remove the bearing by pulling it out gently. Remove the screw from the evaporator. Figure 8 16. Push the holdfast to the left and lift up the evaporator. Evaporator 17. Remove the cross flow fan from 18. Fan motor can be removed after the the unit by pulling it to the left and removal of cross flow fan.
Page 142 Cross Flow Fan Reminder: To reinstall the cross flow fan, ensure cross flow fan is in line as shown in figure 10. Figure 10...
Page 143: Outdoor Electronic Controller Removal Procedure
18.3 Outdoor Electronic Controller Removal Procedure 18.3.1 CU-DZ25VKE CU-DZ35VKE CU-PZ25VKE CU-PZ35VKE CU-UZ25VKE CU-UZ35VKE 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 Screws Release 3 Terminal Connectors, L, N...
Page 144 18.3.2 CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE Caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 5 screws of the Top Panel. 5. Remove the Control Board as follows: Fig. 1 Fig. 4 2. Remove the 8 screws of the Front Panel. Fig.
Page 145: Technical Data
2638 1049 15.8 3423 2259 3746 2461 3495 2264 3191 2104 1073 (Dry bulb value based on 46% humidity) 19.1.3 CS-PZ50VKE CU-PZ50VKE CS-DZ50VKE CU-DZ50VKE Indoor (°C) Outdoor DB (°C) 19.0 5022 3407 1434 5653 3678 5270 3595 1300 5000 3606 1680 22.0...
Page 146 19.1.4 CS-UZ25VKE CU-UZ25VKE Indoor (°C) Outdoor DB (°C) 19.0 2682 2281 492 2609 2266 505 2683 2280 490 2627 2257 545 2786 2308 446 2610 2217 552 2500 2244 680 22.0 2877 1777 536 2899 1788 532 2900 1789 521 3007 1846 456 3065 1895 449 2859 1773 561 2668 1711 695 15.7 2078 2078 388 2245 2133 471 2407 2218 520 2406 2203 527 2566 2334 445 2394 2190 544 2154 2088 661 18.4 2424 1725 446 2545 1759 486 2583 183 547 2686 1823 493 2786 1881 445 2614 1800 552 2363 1651 678...
Page 147: Heat Mode Performance Data
1030 3190 1120 3840 1040 4085 1105 2023 2520 1057 3242 1056 3888 1012 4231 1056 19.2.3 CS-PZ50VKE CU-PZ50VKE CS-DZ50VKE CU-DZ50VKE Indoor (°C) Outdoor WB (°C) 3604 1897 4169 2103 5275 2110 5043 1572 5368 1564 3609 1795 4580 2090...
Page 148 19.2.6 CS-UZ50VKE CU-UZ50VKE Indoor (°C) Outdoor WB (°C) 3604 1897 4169 2113 5275 2119 5043 1582 5368 1574 3609 1795 4580 2100 5430 2170 5400 1580 5584 1574 3401 1699 4723 2010 5465 2065 5765 1578 5919 1571 - Total Cooling Capacity (W) - Input Power (W)
Page 149: Service Data
20. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 20.1 Cool Mode Outdoor Air Temperature Characteristic Room Temperature: 27/19°C, Cooling Characteristic Fan: High Pipe Length: 5.0m Freq: Rated Fc 20.1.1 CS-DZ25VKE CU-DZ25VKE CS-PZ25VKE CU-PZ25VKE...
Page 150 20.1.2 CS-DZ35VKE CU-DZ35VKE CS-PZ35VKE CU-PZ35VKE 19.00 18.00 17.00 16.00 15.00 14.00 13.00 12.00 11.00 Outdoor Air Temperature (°C) 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 Outdoor Air Temperature (°C) 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 Outdoor Air Temperature (°C)
Page 151 20.1.3 CS-DZ50VKE CU-DZ50VKE CS-PZ50VKE CU-PZ50VKE 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Outdoor Air Temperature (°C) 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Outdoor Air Temperature (°C)
Page 152 20.1.4 CS-UZ25VKE CU-UZ25VKE 20.00 19.00 18.00 17.00 16.00 15.00 14.00 13.00 12.00 Outdoor Air Temperature (°C) 4.00 3.50 3.00 2.50 2.00 1.50 1.00 Outdoor Air Temperature (°C) 1.30 1.25 1.20 1.15 1.10 1.05 1.00 0.95 0.90 Outdoor Air Temperature (°C)
Page 153 20.1.5 CS-UZ35VKE CU-UZ35VKE 19.00 18.00 17.00 16.00 15.00 14.00 13.00 12.00 11.00 Outdoor Air Temperature (°C) 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 Outdoor Air Temperature (°C) 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 Outdoor Air Temperature (°C)
Page 154 20.1.6 CS-UZ50VKE CU-UZ50VKE 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Outdoor Air Temperature (°C) 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Outdoor Air Temperature (°C) Outdoor Air Temperature (°C)
Page 155: Heat Mode Outdoor Air Temperature Characteristic
20.2 Heat Mode Outdoor Air Temperature Characteristic Room Temperature: 20°C, Heating Characteristic Fan: High Pipe Length: 5.0m Freq: Rated Fh 20.2.1 CS-DZ25VKE CU-DZ25VKE CS-PZ25VKE CU-PZ25VKE Outdoor Air Temperature (°C) 4.50 4.00 3.50 3.00 2.50 2.00 1.50 Outdoor Air Temperature (°C) 3.50 3.00 2.50...
Page 156 20.2.2 CS-DZ35VKE CU-DZ35VKE CS-PZ35VKE CU-PZ35VKE Outdoor Air Temperature (°C) 5.50 5.00 4.50 4.00 3.50 3.00 2.50 Outdoor Air Temperature (°C) 3.50 3.00 2.50 2.00 1.50 1.00 Outdoor Air Temperature (°C)
Page 157 20.2.3 CS-DZ50VKE CU-DZ50VKE CS-PZ50VKE CU-PZ50VKE Outdoor Air Temperature (°C) 8.00 7.50 7.00 6.50 6.00 5.50 5.00 4.50 4.00 3.50 3.00 Outdoor Air Temperature (°C) 4.00 3.50 3.00 2.50 2.00 1.50 Outdoor Air Temperature (°C)
Page 158 20.2.4 CS-UZ25VKE CU-UZ25VKE Outdoor Air Temperature (°C) 4.50 4.00 3.50 3.00 2.50 2.00 1.50 Outdoor Air Temperature (°C) 4.00 3.50 3.00 2.50 2.00 Outdoor Air Temperature (°C)
Page 159 20.2.5 CS-UZ35VKE CU-UZ35VKE Outdoor Air Temperature (°C) 5.50 5.00 4.50 4.00 3.50 3.00 2.50 Outdoor Air Temperature (°C) 3.50 3.00 2.50 2.00 1.50 1.00 Outdoor Air Temperature (°C)
Page 160 20.2.6 CS-UZ50VKE CU-UZ50VKE Outdoor Air Temperature (°C) 8.00 7.50 7.00 6.50 6.00 5.50 5.00 4.50 4.00 3.50 3.00 Outdoor Air Temperature (°C) 4.00 3.50 3.00 2.50 2.00 1.50 Outdoor Air Temperature (°C)
Page 161: Piping Length Correction Factor
20.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 20.3.1 CS-DZ25VKE CU-DZ25VKE CS-DZ35VKE CU-DZ35VKE CS-PZ25VKE CU-PZ25VKE CS-PZ35VKE CU-PZ35VKE CS-UZ25VKE CU-UZ25VKE CS-UZ35VKE CU-UZ35VKE 1.02 1.00 0.98 0.96 0.94 0.92 Pipe Length (m) 1.04 1.02 1.00...
Page 162 20.3.2 CS-DZ50VKE CU-DZ50VKE CS-PZ50VKE CU-PZ50VKE CS-UZ50VKE CU-UZ50VKE 1.04 1.02 1.00 0.98 0.96 0.94 0.92 0.90 Pipe Length (m) 1.05 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 Pipe Length (m) Note: The graphs show the factor after added right amount of additional refrigerant.
Page 163: Exploded View And Replacement Parts List
21. Exploded View and Replacement Parts List 21.1 Indoor Unit 21.1.1 CS-DZ25VKE CS-DZ35VKE CS-PZ25VKE CS-PZ35VKE CS-UZ25VKE CS-UZ35VKE CWH55025J CWH55051J (FOR CS-DZ/PZ25/35VKE ONLY) (FOR CS-UZ25/35VKE ONLY) 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 164 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-DZ25VKE CS-DZ35VKE REMARK CHASSIS COMPLETE CWD50C1903 ← FAN MOTOR L6CBYYYL0177 ← CROSS-FLOW FAN COMPLETE CWH02C1159 ← BEARING ASSY CWH64K1006 ← SCREW - CROSS-FLOW FAN CWH551146 ← EVAPORATOR ACXB30C00770 ← FLARE NUT (LIQUID) CWT251048 ←...
Page 165 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-PZ25VKE CS-PZ35VKE REMARK CHASSIS COMPLETE CWD50C1903 ← FAN MOTOR L6CBYYYL0177 ← CROSS-FLOW FAN COMPLETE CWH02C1159 ← BEARING ASSY CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← EVAPORATOR ACXB30C00770 ← FLARE NUT (LIQUID) CWT251048 ←...
Page 166 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-UZ25VKE CS-UZ35VKE REMARK CHASSIS COMPLETE CWD50C1903 ← FAN MOTOR L6CBYYYL0177 ← CROSS-FLOW FAN COMPLETE CWH02C1159 ← BEARING ASSY CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← EVAPORATOR ACXB30C16900 ← FLARE NUT (LIQUID) CWT251048 ←...
Page 167 21.1.2 CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE CWH55025J CWH55051J (FOR CS-DZ/PZ50VKE ONLY) (FOR CS-UZ50VKE ONLY) Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
Page 168 REF. SAFETY PART NAME & DESCRIPTION QTY. CS-DZ50VKE CS-PZ50VKE CS-UZ50VKE REMARK CHASSIS COMPLETE CWD50C1901 ← ← FAN MOTOR L6CBYYYL0175 L6CBYYYL0037 L6CBYYYL0175 CROSS-FLOW FAN COMPLETE CWH02C1076 ← ← BEARING ASSY CWH64K1006 CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← ← EVAPORATOR ACXB30C01200 ←...
Page 169: Outdoor Unit
21.2 Outdoor Unit 21.2.1 CU-DZ25VKE CU-DZ35VKE CU-PZ25VKE CU-PZ35VKE CU-UZ25VKE CU-UZ35VKE 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 170 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-DZ25VKE CU-DZ35VKE REMARK CHASSIS COMPLETE CWD52K1399 ← FAN MOTOR BRACKET CWD541157 ← SCREW - FAN MOTOR BRACKET CWH551217 ← FAN MOTOR L6CAYYYL0064 ← SCREW - FAN MOTOR MOUNT CWH55252J ← PROPELLER FAN ASSY CWH03K1100 ←...
Page 171 PART NAME & DESCRIPTION QTY. CU-DZ25VKE CU-DZ35VKE REMARK INSTALLATION INSTRUCTION ACXF60-33850 ← INSTALLATION INSTRUCTION ACXF60-33860 ← INSTALLATION INSTRUCTION ACXF60-33870 ← PANASONIC BADGE CWE373439 ← OPERATING INSTRUCTION ACXF55-22330 ← INSTALLATION INSTRUCTION ACXF60-33880 ← CWG861078 ← BASE BOARD - COMPLETE CWG62C1223 ←...
Page 172 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-PZ25VKE CU-PZ35VKE REMARK CHASSIS COMPLETE CWD52K1399 ← FAN MOTOR BRACKET CWD541157 ← SCREW - FAN MOTOR BRACKET CWH551217 ← FAN MOTOR L6CAYYYL0064 ← SCREW - FAN MOTOR MOUNT CWH55252J ← PROPELLER FAN ASSY CWH03K1100 ←...
Page 173 PART NAME & DESCRIPTION QTY. CU-PZ25VKE CU-PZ35VKE REMARK INSTALLATION INSTRUCTION ACXF60-33850 ← INSTALLATION INSTRUCTION ACXF60-33860 ← INSTALLATION INSTRUCTION ACXF60-33870 ← PANASONIC BADGE CWE373439 ← OPERATING INSTRUCTION ACXF55-22330 ← INSTALLATION INSTRUCTION ACXF60-33880 ← CWG861078 ← BASE BOARD - COMPLETE CWG62C1223 ←...
Page 174 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-UZ25VKE CU-UZ35VKE REMARK CHASSIS COMPLETE CWD52K1399 ← FAN MOTOR BRACKET CWD541157 ← SCREW - FAN MOTOR BRACKET CWH551217 ← FAN MOTOR L6CAYYYL0064 ← SCREW - FAN MOTOR MOUNT CWH55252J ← PROPELLER FAN ASSY CWH03K1100 ←...
Page 175 PART NAME & DESCRIPTION QTY. CU-UZ25VKE CU-UZ35VKE REMARK INSTALLATION INSTRUCTION ACXF60-33850 ← INSTALLATION INSTRUCTION ACXF60-33860 ← INSTALLATION INSTRUCTION ACXF60-33870 ← PANASONIC BADGE CWE373439 ← OPERATING INSTRUCTION ACXF55-22330 ← INSTALLATION INSTRUCTION ACXF60-33880 ← CWG861078 ← BASE BOARD - COMPLETE CWG62C1223 ←...
Page 176 21.2.2 CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE 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 177 REF. SAFETY PART NAME & DESCRIPTION QTY. CU-DZ50VKE CU-PZ50VKE CU-UZ50VKE REMARK CHASSIS COMPLETE CWD52K1277 ← ← FAN MOTOR BRACKET CWD541167 ← ← SCREW - FAN MOTOR BRACKET CWH551217 ← ← FAN MOTOR L6CAYYYL0064 ← ← SCREW - FAN MOTOR MOUNT CWH55252J ←...
Page 178 ACXF60-33840 ← ← INSTALLATION INSTRUCTION ACXF60-33850 ← ← INSTALLATION INSTRUCTION ACXF60-33860 ← ← INSTALLATION INSTRUCTION ACXF60-33870 ← ← PANASONIC BADGE CWE373439 ← ← OPERATING INSTRUCTION ACXF55-22330 ← ← INSTALLATION INSTRUCTION ACXF60-33880 ← ← ACXG86-03760 ← ← BASE BOARD - COMPLETE CWG62C1144 ←...

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Cs-dz25vke Cs-pz25vke Cs-dz35vke Cs-pz50vke Cs-uz35vke Cs-uz25vke ... Show all

Panasonic CS-DZ50VKE Service Manual

1 Safety Precautions

2 Precaution for Using R32 Refrigerant

3 Specifications

4 Features

5 Location of Controls and Components

6 Dimensions

7 Refrigeration Cycle Diagram

8 Block Diagram

9 Wiring Connection Diagram

10 Electronic Circuit Diagram

11 Printed Circuit Board

12 Installation Instruction

13 Installation and Servicing Air Conditioner Using R32

14 Operation Control

15 Protection Control

16 Servicing Mode

17 Troubleshooting Guide

18 Disassembly and Assembly Instructions

19 Technical Data

20 Service Data

21 Exploded View and Replacement Parts List

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