Table of Contents
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TABLE OF CONTENTS
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
2.1. CS-C9EKZW CU-2C18EKH --------------------------- 5
2.2. CS-C9EKZW CU-3C20EKH --------------------------- 7
3 Features ------------------------------------------------------------- 9
4 Location of Controls and Components ------------------10
4.1. Indoor Unit--------------------------------------------------10
4.2. Outdoor Unit -----------------------------------------------10
4.3. Remote Control -------------------------------------------10
5 Dimensions--------------------------------------------------------11
5.1. Indoor Unit & Remote Control ------------------------- 11
5.2. Outdoor Unit -----------------------------------------------12
6 Refrigeration Cycle Diagram --------------------------------13
7 Block Diagram----------------------------------------------------14
CS-C9EKZW CU-2C18EKH
CS-C9EKZW CU-3C20EKH
PAGE
8 Wiring Connection Diagram--------------------------------- 16
8.1. CS-C9EKZW CU-2C18EKH-------------------------- 16
8.2. CS-C9EKZW CU-3C20EKH-------------------------- 17
9 Printed Circuit Board ------------------------------------------ 18
9.1. Indoor Unit ------------------------------------------------- 18
9.2. Indicator ---------------------------------------------------- 20
9.3. Outdoor Unit----------------------------------------------- 21
10 Installation Instruction ---------------------------------------- 22
10.1. Select The Best Location ------------------------------ 22
10.2. Indoor/Outdoor Unit Installation Diagram ---------- 22
10.3. Indoor Unit ------------------------------------------------- 23
10.4. Outdoor Unit----------------------------------------------- 26
11 Operation And Control ---------------------------------------- 29
11.1. Cooling Operation---------------------------------------- 29
© 2006 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0602015C3
Air Conditioner
PAGE
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Summary of Contents for Panasonic CS-C9EKZW
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Page 1: Table Of Contents
10.4. Outdoor Unit----------------------------------------------- 26 6 Refrigeration Cycle Diagram --------------------------------13 11 Operation And Control ---------------------------------------- 29 7 Block Diagram----------------------------------------------------14 11.1. Cooling Operation---------------------------------------- 29 © 2006 Panasonic HA Air-Conditioning (M) Sdn Bhd (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law. - Page 2 Removal Procedures ------------------------------------ 45 15 Technical Data --------------------------------------------------- 46 15.1. Thermostat Characteristics ---------------------------- 46 15.2. Operation Characteristics ------------------------------ 47 16 Exploded View and Replacement Parts List ----------- 52 16.1. CS-C9EKZW ---------------------------------------------- 52 16.2. CU-2C18EKH --------------------------------------------- 54 16.3. CU-3C20EKH --------------------------------------------- 56...
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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 Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture. Pb free solder has a higher melting point than standard solder; typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a high temperature soldering iron.
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Page 5: Specifications
2 Specifications 2.1. CS-C9EKZW CU-2C18EKH Unit Indoor unit Outdoor unit Performance Test Condition ISO 5151 ø Single Power Source (Phase, Voltage, Cycle) 240 - 220 (1 unit) 2.44 - 2.40 (2 units) 4.88 - 4.80 Cooling Capacity (BTU/h) (8,320 - 8,180) (16,600 - 16,400) (1 unit) 1.5... - Page 6 Unit Indoor unit Outdoor unit Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Aluminium (Blue Coat) Fin Type Slit Fin Louver Fin Heat Exchanger (Plate fin configuration, forced draft) Row / Stage 2 x 15 2 x 24 Size (W ×...
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Page 7: Cs-C9Ekzw Cu-3C20Ekh
2.2. CS-C9EKZW CU-3C20EKH Indoor unit Outdoor unit Performance Test Condition ISO 5151 Unit Single Operation Single Operation Double Operation Triple Operation (A, B1, B2) (B1 or B2) (B1 + B2) (A + B1 or B2) (A + B1 + B2) Power Source ø... - Page 8 Indoor unit Outdoor unit Description Cross-flow Fan Propeller Fan Material AS + Glass Fiber AS + Glass Fiber 20% Type Induction Induction (6-poles) (4-poles) Input 29.3 - 26.3 134.0 - 118.7 Fan Motor Rated Output 730 - 730 — Medium 1,000 - 1,000 —...
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Page 9: Features
3 Features • High Efficiency • Compact Design • Wider range of horizontal discharge air • Air Filter with function to reduce dust and smoke • Automatic air swing and manual adjusted by Remote Control for vertical airflow • Long Installation Piping - Long piping up to 15 meter •... -
Page 10: Location Of Controls And Components
4 Location of Controls and Components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3. Remote Control... -
Page 11: Dimensions
5 Dimensions 5.1. Indoor Unit & Remote Control 5.1.1. CS-C9EKZW... -
Page 12: Outdoor Unit
5.2. Outdoor Unit... -
Page 13: Refrigeration Cycle Diagram
6 Refrigeration Cycle Diagram... -
Page 14: Block Diagram
7 Block Diagram... -
Page 16: Wiring Connection Diagram
8 Wiring Connection Diagram 8.1. CS-C9EKZW CU-2C18EKH... -
Page 17: Cs-C9Ekzw Cu-3C20Ekh
8.2. CS-C9EKZW CU-3C20EKH... -
Page 18: Printed Circuit Board
9 Printed Circuit Board 9.1. Indoor Unit TOP VIEW... - Page 19 BOTTOM VIEW...
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Page 20: Indicator
9.2. Indicator TOP VIEW BOTTOM VIEW... -
Page 21: Outdoor Unit
9.3. Outdoor Unit... -
Page 22: Installation Instruction
Additional Length Elevation piping Refrigerant Model Length (g/m) Gas Liquid CS-C9EKZW x 2 3/8” 1/4” CU-2C18EKH CS-C9EKZW x 3 3/8” 1/4” CU-3C20EKH • The above models will be installed at a 15 m (max) distance. The refrigerant should be added 75 g. (15-7.5) x 10 g=75 g... -
Page 23: Indoor Unit
10.3. 10.3.2. TO DRILL A HOLE IN THE WALL Indoor Unit INSTALL SLEEVE 10.3.1. HOW TO FIX INSTALLATION PLATE PIPING The mounting wall is strong and solid enough to prevent it from 1. Insert the piping sleeve to the hole. the vibration. - Page 24 3. For the embedded piping (This can be used for left rear piping and left bottom piping also.)
- Page 25 10.3.4. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × 1.5 mm flexible cord, type designation 245 IEC 57 or heavier cord.
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Page 26: Outdoor Unit
• Align the center of piping and sufficiently tighten the flare nut with fingers. • Further tighten the flare nut with torque wrench in specified torque as stated in the table. Model Piping size (Torque) Liquid CS-C9EKZW 3/8” [42 N 1/4” [18 N ● ●... - Page 27 10.4.3. AIR PURGING OF THE PIPINGS AND INDOOR UNIT 1) Checking a gas leakage 1. Remove the service port cap from 3-way valves. 2. Connect the Manifold gauge set to the service port of liquid side 3-way valve. 3. Connect the Charging Cylinder to the Manifold gauge set and open the valve of the Cylinder.
- Page 28 10.4.4. CONNECT THE CABLE TO THE OUTDOOR UNIT 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed flexible cord, type designation 245 IEC 57 or heavier cord (4 x 1.5 Power supply cord cable use 3 x 1.5 mm flexible cord, type designation 245 IEC 57 or heavier cord.
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Page 29: Operation And Control
11 Operation And Control 11.1. Cooling Operation • Cooling operation can be set using remote control. • This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control. • The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16°C to 30°C. -
Page 30: Soft Dry Operation
11.2. Soft Dry Operation • Soft Dry operation can be set using remote control. • Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room. • This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control. •... -
Page 31: Automatic Operation
11.3. Automatic Operation • Automatic operation can be set using remote control. • This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature. • After judged the temperature, the operation mode is determined by referring to the below standard. •... -
Page 32: Operation Control
11.4. Operation Control 11.4.1. Restart Control (Time Delay Safety Control) • When the thermo-off temperature (temperature which compressor stops to operate) is reached during:- - Cooling operation - the compressor stops for 3 minutes (minimum) before resume operation. - Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation. •... - Page 33 11.4.6. Compressor Reverse Rotation Protection Control • If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor heat exchanger is 2.5°C or less for continuous 2 minutes, compressor will stop and restart automatically. •...
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Page 34: Indoor Fan Speed Control
11.5. Indoor Fan Speed Control • Indoor Fan Speed can be set using remote control. 11.5.1. Fan Speed Rotation Chart Speed Fan Speed (rpm) CS-C9EKZW S Hi 1300 1210 1000 H Lo C Lo S Lo Q Hi 1110 Q Me Q Lo 11.5.2. -
Page 35: Outdoor Fan Speed Control
• Auto Fan Speed during cooling operation: 1. Indoor fan will rotate alternately between off and on as shown in below diagram. 2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose. 3. -
Page 36: Vertical Airflow Direction Control
11.7. Vertical Airflow Direction Control 11.7.1. Auto Control • When the vertical airflow direction is set to Auto using the remote control, the louver swings up and down as shown in the dia- gram. • When stop operation using the remote control, the discharge vent is reset, and stop at the closing position. •... -
Page 37: Quiet Operation
11.10. Quiet Operation (For Cooling Operation or cooling region of Soft Dry Operation) • To provide quiet/cooling operation condition compare to normal operation. • Once the Quiet Mode is set at the remote control, the Quiet Mode LED illuminated. The sound level will reduce around 2 dB(A) for Lo fan speed or 3 dB(A) for Hi/Me fan speed against the present operation sound level. -
Page 38: Timer Control
11.11. Timer Control 11.11.1. ON Timer • When the ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so that the room will reach nearly to the set temperature by the set time. •... -
Page 39: Servicing Mode
12 Servicing Mode 12.1. Auto OFF/ON Button • The “Auto OFF/ON Button” (behind the front grille) is used to operate the air conditioner if remote control is misplaced or malfunctioning. • Forced cooling operation is possible by pressing the “Auto OFF/ON Button” for more than 5s where “beep” sound is heard then release the button. -
Page 40: Test Mode Timer Table
12.2.2. CLOCK • To change the remote control’s clock-hour and minute. - Press once to enter the clock setting mode. - Use timer increment button timer decrement button to change the time. - Press once again to exit the setting mode. •... -
Page 41: Troubleshooting Guide
13 Troubleshooting Guide 13.1. Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right. -
Page 42: Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current
13.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current Cooling Mode Condition of the air conditoner 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... -
Page 43: Disassembly And Assembly Instructions
14 Disassembly and Assembly Instructions High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 14.1. Indoor Electronic Controllers Removal Procedures •... - Page 44 • How to remove PCBs from the control board - Pull the hook then remove the particular piece. (Fig. 4) - Release CN-DISP. (Fig. 4) - Release CN-STM. (Fig. 4) - Release CN-TH. (Fig. 4) - Release CN-SONIC. (Fig. 4) - Release CN-FB.
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Page 45: Indoor Fan Motor And Cross Flow Fan Removal Procedures
14.2. Indoor Fan Motor and Cross Flow Fan Removal Procedures • Pull down the Discharge Grille Complete. (Fig. 5) Fig. 5 • Remove the earth wire from the evaporator. (Fig. 6) • Remove 2 screws on the right and 1 screw at the left side of control board. -
Page 46: Technical Data
15 Technical Data 15.1. Thermostat Characteristics Cooling Soft Dry... -
Page 47: Operation Characteristics
15.2. Operation Characteristics 15.2.1. CS-C9EKZW CU-2C18EKH... - Page 48 15.2.2. CS-C9EKZW CU-3C20EKH...
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Page 52: Exploded View And Replacement Parts List
16 Exploded View and Replacement Parts List 16.1. CS-C9EKZW 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 53 <Model: CS-C9EKZW> REF. NO. PART NAME & DESCRIPTION QTY. CS-C9EKZW REMARKS CHASSY COMPLETE CWD50C1492 CWA921181J (S.E.Asia) FAN MOTOR CWA921324 (MALAYSIA) CROSS FLOW FAN COMPLETE CWH02C1045 BEARING ASS’Y CWH64K007 SCREW - CROSS FLOW FAN CWH551146 EVAPORATOR CWB30C1741 FLARE NUT (1/4) CWT251026...
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Page 54: Cu-2C18Ekh
16.2. CU-2C18EKH 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 55 <Model: CU-2C18EKH> REF. NO. PART NAME & DESCRIPTION QTY. CU-2C18EKH REMARKS CHASSY ASS’Y CWD50K664A AIR GUIDER FOR PROPELLER FAN CWD31094A SOUND PROOF BOARD CWH15071 FAN MOTOR BRACKET CWD54179 CONDENSER CWB32C1028R FAN MOTOR CWA951402J PROPELLER FAN CWH00023 COMPRESSOR 2PS132D2AC02 3-WAY VALVE (LIQUID SIDE) CWB011194 3-WAY VALVE (GAS SIDE) CWB011195...
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Page 56: Cu-3C20Ekh
16.3. CU-3C20EKH 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 57 <Model: CU-3C20EKH> REF. NO. PART NAME & DESCRIPTION QTY. CU-3C20EKH REMARKS CHASSY ASS’Y CWD50K664A COMPRESSOR 2PS192D2AC02 AIR GUIDER CWD31094A SOUND PROOF BOARD CWH15071 FAN MOTOR BRACKET CWD54179 CONDENSER CWB32C1029R FAN MOTOR CWA951402J PROPELLER FAN CWH00023 COMPRESSOR 2PS132D2AC02 3-WAY VALVE (LIQUID SIDE) CWB011196 3-WAY VALVE (GAS SIDE) CWB011195...