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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 frostbit, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
CS-PS9NKV
CS-PS12NKV
CS-PS18NKV
CS-PS24NKV
© Panasonic Appliances Air-Conditioning (M) Sdn. Bhd. 2012.
Unauthorized copying and distribution is a violation of law.
Order No: PHAAM1201103C3
Outdoor Unit
CU-PS9NKV
CU-PS12NKV
CU-PS18NKV
CU-PS24NKV
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Table of Contents
Troubleshooting
Related Manuals for Panasonic CS-PS9NKV
Summary of Contents for Panasonic CS-PS9NKV
- Page 1 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbit, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Appliances Air-Conditioning (M) Sdn. Bhd. 2012. Unauthorized copying and distribution is a violation of law.
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Page 2: Table Of Contents
Troubleshooting Flowchart ......60 CS-PS24NKV CU-PS24NKV ....15 15. Disassembly and Assembly Instructions ..81 6. Block Diagram ..........16 15.1 CS-PS9/12NKV ......... 81 CS-PS9NKV CU-PS9NKV ......16 15.2 CS-PS18/24NKV ........85 CS-PS12NKV CU-PS12NKV ....17 CS-PS18NKV CU-PS18NKV ....18 16. Technical Data ..........89 CS-PS24NKV CU-PS24NKV ....19... -
Page 3: Safety Precautions
1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • 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 installed. •... - Page 4 19. During installation, before run the compressor, confirm the refrigerant pipes are fixed. Operation of compressor without fixing the piping, setting the valves at open condition, a burst may occur and cause injury. 20. During pump down operation, stop the compressor before remove the refrigerant piping. (Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.) 21.
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Page 5: Specification
2. Specification Indoor CS-PS9NKV CS-PS12NKV Model Outdoor CU-PS9NKV CU-PS12NKV Performance Test Condition Phase, Hz Single, 60 Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. 0.84 2.54 3.15 0.92 3.06 4.00 Capacity BTU/h 2860 8660 10700 3140 10400 13600... - Page 6 Height(I/D / O/D) mm (inch) 290 (11-7/16) / 511 (20-1/8) 290 (11-7/16) / 542 (21-11/32) Dimension Width (I/D / O/D) mm (inch) 870 (34-9/32) / 650 (25-19/32) 870 (34-9/32) / 780 (30-23/32) Depth (I/D / O/D) mm (inch) 214 (8-7/16) / 230 (9-1/16) 214 (8-7/16) / 289 (11-13/32) Weight Net (I/D / O/D)
- Page 7 Indoor CS-PS18NKV CS-PS24NKV Model Outdoor CU-PS18NKV CU-PS24NKV Performance Test Condition Phase, Hz Single, 60 Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. 1.10 5.15 6.00 1.12 5.87 6.70 Capacity BTU/h 3750 17600 20500 3820 20000 22800 kJ/h 3960 18540 21600 4030...
- Page 8 Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) 6.35 (1/4) / 15.88 (5/8) Standard length m (ft) 5.0 (16.4) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 20 (65.6) 3 (9.8) ~ 20 (65.6) I/D &...
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Page 9: Location Of Controls And Components
3. Location of Controls and Components Indoor Unit Outdoor Unit Remote Control... -
Page 10: Dimensions
Dimensions Indoor Unit 4.1.1 CS-PS9NKV CS-PS12NKV... - Page 11 4.1.2 CS-PS18NKV CS-PS24NKV...
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Page 12: Outdoor Unit
Outdoor Unit 4.2.1 CU-PS9NKV 4.2.2 CU-PS12NKV CU-PS18NKV... - Page 13 4.2.3 CU-PS24NKV...
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Page 14: Refrigeration Cycle Diagram
5. Refrigeration Cycle Diagram CS-PS9NKV CU-PS9NKV CS-PS12NKV CU-PS12NKV... -
Page 15: Cs-Ps18Nkv Cu-Ps18Nkv Cs-Ps24Nkv Cu-Ps24Nkv
CS-PS18NKV CU-PS18NKV CS-PS24NKV CU-PS24NKV... -
Page 16: Block Diagram
6. Block Diagram CS-PS9NKV CU-PS9NKV... -
Page 17: Cs-Ps12Nkv Cu-Ps12Nkv
CS-PS12NKV CU-PS12NKV... -
Page 18: Cs-Ps18Nkv Cu-Ps18Nkv
CS-PS18NKV CU-PS18NKV... -
Page 19: Cs-Ps24Nkv Cu-Ps24Nkv
CS-PS24NKV CU-PS24NKV... -
Page 20: Wiring Connection Diagram
7. Wiring Connection Diagram Indoor Unit 7.1.1 CS-PS9NKV CS-PS12NKV... - Page 21 7.1.2 CS-PS18NKV CS-PS24NKV...
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Page 22: Outdoor Unit
Outdoor Unit 7.2.1 CU-PS9NKV Resistance of Compressor Windings MODEL CU-PS9NKV CONNECTION 5RS092XCE21 1.152Ω 1.152Ω 1.152Ω... - Page 23 7.2.2 CU-PS12NKV Resistance of Compressor Windings MODEL CU-PS12NKV CONNECTION 5RS092XCD21 1.152Ω 1.152Ω 1.152Ω...
- Page 24 7.2.3 CU-PS18NKV Resistance of Compressor Windings MODEL CU-PS18NKV CONNECTION 5RD132XDA21 1.152Ω 1.152Ω 1.152Ω...
- Page 25 7.2.4 CU-PS24NKV Resistance of Compressor Windings MODEL CU-PS24NKV CONNECTION 5RD132XBA21 1.897Ω 1.907Ω 1.882Ω...
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Page 26: Electronic Circuit Diagram
8. Electronic Circuit Diagram Indoor Unit 8.1.1 CS-PS9NKV CS-PS12NKV... - Page 27 8.1.2 CS-PS18NKV CS-PS24NKV...
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Page 28: Outdoor Unit
Outdoor Unit 8.2.1 CU-PS9NKV... - Page 29 8.2.2 CU-PS12NKV...
- Page 30 8.2.3 CU-PS18NKV...
- Page 31 8.2.4 CU-PS24NKV...
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Page 32: Printed Circuit Board
9. Printed Circuit Board Indoor Unit 9.1.1 Main Printed Circuit Board 9.1.1.1 CS-PS9NKV CS-PS12NKV... - Page 33 9.1.1.2 CS-PS18NKV CS-PS24NKV 9.1.2 Indicator and Receiver Printed Circuit Board...
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Page 34: Outdoor Unit
Outdoor Unit 9.2.1 Main Printed Circuit Board 9.2.1.1 CU-PS9NKV... - Page 35 9.2.1.2 CU-PS12NKV...
- Page 36 9.2.1.3 CU-PS18NKV...
- Page 37 9.2.1.4 CU-PS24NKV...
- Page 38 9.2.2 Noise Filter Printed Circuit Board 9.2.2.1 CU-PS9NKV...
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Page 39: Installation Instruction
10. Installation Instruction 10.1 Select the Best Location 10.1.3 Indoor/Outdoor Unit Installation Diagram 10.1.1 Indoor Unit • 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 near the unit. -
Page 40: Indoor Unit
10.2 Indoor Unit 10.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent if from the vibration. Dimension Model ○ ○ ○ ○ ○ ○ PS9***, PS12*** 485mm 82mm 165mm 158mm 43mm 95mm PS18***, PS24*** 585mm 82mm... - Page 41 10.2.3 Indoor Unit Installation 10.2.3.1 For the right rear piping 10.2.3.2 For the right and right bottom piping 10.2.3.3 For the embedded piping (This can be used for left rear piping and bottom piping also.)
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Page 42: Connect The Cable To The Indoor Unit
10.2.4 Connect the Cable to the Indoor Unit The inside and outside connection cable can be connected without removing the front grille. Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm (1.0 ~ 1.5HP) or 4 x 2.5 mm (2.0 ~ 2.5HP) flexible cord, type designation 245 IEC 57 or heavier cord. - Page 43 Note: • Isolating Devices (Disconnecting means) should have minimum 3.0 mm contact gap. • Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively. • Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.
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Page 44: Outdoor Unit
10.3 Outdoor Unit 10.3.1 Install the Outdoor Unit • After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. -
Page 45: Evacuation Of The Equipment
10.3.3 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. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. -
Page 46: Connect The Cable To The Outdoor Unit
10.3.4 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 (1.0 ~ 1.5HP) or 4 x 2.5 mm (2.0 ~ 2.5HP) flexible cord, type designation 245 IEC 57 or heavier cord. -
Page 47: Operation Control
11. Operation Control 11.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. -
Page 48: Indoor Fan Motor Operation
11.2 Indoor Fan Motor Operation 11.2.1 Basic Rotation Speed • Manual Fan Speed Fan motor’s number of rotation is determined according to remote control setting. Remote control ○ ○ ○ ○ ○ • Auto Fan Speed According to room temperature and setting temperature, indoor fan speed is determined automatically. The indoor fan will operate according to pattern below. -
Page 49: Airflow Direction
11.4 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 50: Random Auto Restart Control
11.5.2 OFF Timer Control OFF timer can be set using remote control, where the unit with timer set will stop at set OFF time. Notes: By pressing ON/OFF operation button, the ON Timer or OFF Timer setting will not be cancelled. To cancel the previous timer setting, press CANCEL button. -
Page 51: Protection Control
12. Protection Control 12.1 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 52: Low Pressure Prevention Control (Gas Leakage Detection)
12.5 Low Pressure Prevention Control (Gas Leakage Detection) • Control start conditions For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A. During Cooling and Soft Dry operation: Indoor suction temperature – indoor piping temperature is below 4°C •... -
Page 53: Cooling Overload Control
12.10 Cooling Overload Control • Pipe temperature limitation / restriction. Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor operation frequency) The compressor stops if outdoor pipe temperature exceeds 61°C. If the compressor stops 4 times in 20 minutes, Timer LED blinks (“F95” indicated: Outdoor high pressure rise protection) 12.11 Freeze Prevention Control •... -
Page 54: Servicing Mode
13. Servicing Mode 13.1 Auto Off/On Button Auto OFF/ON Auto OFF/ON Button Pressed Button Pressed 5 sec Auto Operation Test Run Operation Stop (Forced Cooling Operation) 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. -
Page 55: Remote Control Button
13.2 Remote Control Button 13.2.1 SET Button • To check remote control transmission code and store the transmission code to EEPROM Press “Set” button for more than 10 seconds by using pointer Press “Timer Set” button unit a “beep” sound is heard as confirmation of transmission code change. 13.2.2 RESET (RC) Button •... -
Page 56: Troubleshooting Guide
14. Troubleshooting Guide 14.1 Refrigeration Cycle System In order to diagnose malfunctions, ensure the air conditioner is free Normal Pressure and Outlet Air Temperature (Standard) from 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 57 14.1.1 Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air conditioner Low Pressure High Pressure Electric current during operation Insufficient refrigerant (gas leakage) Clogged capillary tube or strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression...
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Page 58: Breakdown Self Diagnosis Function
14.2 Breakdown Self Diagnosis Function 14.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code) • Once error occurred during operation, the unit will stop its operation, and Timer LED blinks. • Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will ON again. -
Page 59: Error Code Table
14.3 Error Code Table Diagnosis Emergency Abnormality / Protection control Abnormality Judgment Primary location to verify display Operation No abnormality detected Normal operation Indoor / Outdoor abnormal > 1 min after starting Indoor fan operation • Internal / external cable connection communication operation only... -
Page 60: Troubleshooting Flowchart
14.4 Troubleshooting Flowchart 14.4.1 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 61 14.4.2 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 62 14.4.3 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 63 14.4.4 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 64 14.4.5 H16 (Outdoor Current Transformer Open Circuit) Malfunction Decision Conditions • A current transformer (CT) is detected by checking the compressor running frequency (≥ rated frequency) and CT detected input current (less than 1.14A) for continuously 20 seconds. Malfunction Caused •...
- Page 65 14.4.6 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 > 2550rpm or < 50rpm) Malfunction Caused •...
- Page 66 14.4.7 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 67 14.4.8 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 68 14.4.9 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 69 14.4.10 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 70 14.4.11 H98 (Indoor High Pressure Protection) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions • During heating operation, the temperature detected by the indoor pipe temperature sensor is above 60°C. Malfunction Caused •...
- Page 71 14.4.12 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Malfunction Decision Conditions • Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C) Malfunction Caused • Clogged air filter of the indoor unit • Dust accumulation on the indoor unit heat exchanger •...
- Page 72 14.4.13 F11 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • When cooling operation, when indoor pipe temperature or indoor heat exchanger temperature sensor is above 45°C. Malfunction Caused • Faulty connector connection. • Faulty indoor pipe temperature sensor. • Faulty indoor main PCB.
- Page 73 14.4.14 F90 (Power Factor Correction Protection) Malfunction Decision Conditions • During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level. Malfunction Caused • DC voltage peak due to power supply surge.
- Page 74 14.4.15 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions • During cooling, compressor frequency = Fcmax. • During cooling and heating operation, running current: 0.65A < I < 1.65A. • During cooling, indoor intake - indoor pipe < 4°C. Malfunction Caused •...
- Page 75 14.4.16 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 • Outdoor PCB malfunction Troubleshooting...
- Page 76 14.4.17 F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooling, when outdoor unit heat exchanger high temperature data (61°C) is detected by the outdoor pipe temperature sensor. Malfunction Caused • Outdoor pipe temperature rise due to short circuit of hot discharge air flow. •...
- Page 77 14.4.18 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. Malfunction Caused • IPM overheats due to short circuit of hot discharge air flow. • IPM overheats due to defective of outdoor fan motor.
- Page 78 14.4.19 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 • Refrigerant shortage (refrigerant leakage). • 2/3 way valve closed. • Detection error due to faulty compressor tank temperature sensor.
- Page 79 14.4.20 F98 (Input Over Current Detection) Malfunction Decision Conditions During cooling and heating operation, 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. Malfunction Caused •...
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Page 80: Troubleshooting
14.4.21 F99 (Output Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an output over-current (18.5A) is detected by checking the current that flows in the inverter DC peak sensing circuitry. Malfunction Caused • DC peak due to compressor failure. •... -
Page 81: Disassembly And Assembly Instructions
15. 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. 15.1 CS-PS9/12NKV 15.1.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures... - Page 82 Figure 3 Figure 4 15.1.3 To remove discharge grille 10. Pull out to remove the drain hose from the discharge grille 11. Then pull the discharge grille downward gently to dismantle it Figure 5...
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Page 83: To Remove Cross Flow Fan And Indoor Fan Motor
15.1.4 To remove control board 12. Remove 4 screws holding the control board then pull out the control board. Figure 6 15.1.5 To remove cross flow fan and indoor fan motor 13. Remove the screw that holding the cross flow fan and fan motor axis. - Page 84 16. Push the holdfast to the left and lift up the evaporator. Evaporator 17. Remove the cross flow fan from the unit by 18. Fan motor can be removed after the pulling it to the left and downward. removal of cross flow fan. Reminder: To reinstall the fan motor, adjust the fan motor connector to 45°...
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Page 85: Cs-Ps18/24Nkv
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. 15.2 CS-PS18/24NKV 15.2.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 15.2.1.1 To remove front grille... - Page 86 Figure 13 Figure 14 15.2.3 To remove discharge grille Figure 15...
- Page 87 15.2.4 To remove control board Figure 16 15.2.5 To remove cross flow fan and indoor fan motor Figure 17 Figure 18...
- Page 88 Figure 19 Figure 20...
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Page 89: Technical Data
16. Technical Data 16.1 Operation Characteristics 16.1.1 CS-PS9NKV CU-PS9NKV • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 7.5m Compressor Frequency = Fc 16.100 15.900 15.700 15.500 15.300 15.100 14.900 14.700 14.500 14.300 Outdoor Air Temperature (°C) - Page 90 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc 15.300 15.200 15.100 15.000 14.900 14.800 Piping Length (m) 2.700 2.600 2.500 2.400 Piping Length (m) 1.154 1.152 1.150...
- Page 91 16.1.2 CS-PS12NKV CU-PS12NKV • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 7.5m Compressor Frequency = Fc 16.900 16.400 15.900 15.400 14.900 Outdoor Air Temperature (°C) 3.300 3.200 3.100 3.000 2.900 2.800 2.700 2.600 Outdoor Air Temperature (°C) 4.700...
- Page 92 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc 15.900 15.800 15.700 15.600 15.500 15.400 Piping Length (m) 3.200 3.100 3.000 2.900 Piping Length (m) 1.100 1.095 1.090...
- Page 93 16.1.3 CS-PS18NKV CU-PS18NKV • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: Compressor Frequency = Fc 15.500 15.300 15.100 14.900 14.700 14.500 Outdoor Air Temperature (°C) 5.600 5.400 5.200 5.000 4.800 4.600 Outdoor Air Temperature (°C) 8.100 7.600 7.100...
- Page 94 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc 15.300 15.200 15.100 15.000 14.900 14.800 14.700 Piping Length (m) 5.200 5.100 5.000 4.900 Piping Length (m) 0.995 0.990 0.985...
- Page 95 16.1.4 CS-PS24NKV CU-PS24NKV • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: Compressor Frequency = Fc 16.200 16.000 15.800 15.600 15.400 15.200 Outdoor Air Temperature (°C) 6.300 6.100 5.900 5.700 5.500 5.300 Outdoor Air Temperature (°C) 10.000 9.500 9.000...
- Page 96 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Compressor Frequency = Fc 16.000 15.900 15.800 15.700 15.600 15.500 15.400 Piping Length (m) 6.000 5.900 5.800 5.700 5.600 Piping Length (m) 0.915 0.910...
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Page 97: Exploded View And Replacement Parts List
17. Exploded View and Replacement Parts List 17.1 Indoor Unit 17.1.1 CS-PS9NKV CS-PS12NKV 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 98 REF. NO. PART NAME & DESCRIPTION QTY. CS-PS9NKV CS-PS12NKV REMARK CHASSIS COMPLETE CWD50C1653 ← FAN MOTOR CWA921443 ← CROSS-FLOW FAN COMPLETE CWH02C1076 ← BEARING ASSY CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← EVAPORATOR CWB30C3848 CWB30C3197 FLARE NUT (LIQUID) CWT251030 ←...
- Page 99 17.1.2 CS-PS18NKV CS-PS24NKV 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 100 REF. NO. PART NAME & DESCRIPTION QTY. CS-PS18NKV CS-PS24NKV REMARK CHASSIS COMPLETE CWD50C1654 ← FAN MOTOR ARW7628AC ← CROSS-FLOW FAN COMPLETE CWH02C1077 ← BEARING ASSY CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← EVAPORATOR CWB30C3198 CWB30C3397 FLARE NUT (LIQUID) CWT251030 ←...
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Page 101: Outdoor Unit
17.2 Outdoor Unit 17.2.1 CU-PS9NKV 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 102 REF. NO. DESCRIPTION & NAME CU-PS9NKV REMARK CHASSIS ASS’Y CWD50K2107 ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5RS092XCE21 NUT - COMPRESSOR MOUNT CWH56000J SOUND PROOF MATERIAL CWG302478 SOUND PROOF MATERIAL CWG302532 FAN MOTOR BRACKET CWD541074 FAN MOTOR CWA951734 SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH55252J...
- Page 103 17.2.2 CU-PS12NKV 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 104 REF. NO. DESCRIPTION & NAME CU-PS12NKV REMARK CHASSIS ASS’Y CWD50K2071 ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5RS092XCD21 NUT - COMPRESSOR MOUNT CWH56000J SOUND PROOF MATERIAL CWG302431 FAN MOTOR BRACKET CWD541030 FAN MOTOR CWA951466 SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH55406J PROPELLER FAN ASSY CWH03K1010...
- Page 105 17.2.3 CU-PS18NKV 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 106 REF. NO. DESCRIPTION & NAME CU-PS18NKV REMARK CHASSIS ASS’Y CWD50K2071 ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5RD132XDA21 NUT - COMPRESSOR MOUNT CWH56000J SOUND PROOF MATERIAL CWG302707 FAN MOTOR BRACKET CWD541089 FAN MOTOR ARS6411AC SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH55252J PROPELLER FAN ASSY CWH03K1010...
- Page 107 17.2.4 CU-PS24NKV Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service part.
- Page 108 REF. NO. DESCRIPTION & NAME CU-PS24NKV REMARK CHASSIS ASS’Y CWD52K1249 ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5RD132XBA21 NUT - COMPRESSOR MOUNT CWH56000J SOUND PROOF MATERIAL CWG302624 FAN MOTOR BRACKET CWD541154 FAN MOTOR CWA951762 SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH55252J PROPELLER FAN ASSY CWH03K1017...