Table of Contents
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CONTENTS
CS-VA75KE CU-VA75KE
CS-VA95KE CU-VA95KE
CS-VA125KE CU-VA125KE
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© 2000 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No: MAC0010055C2
Room Air Conditioner
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Table of Contents
Troubleshooting
Related Manuals for Panasonic CS-VA75KE
Summary of Contents for Panasonic CS-VA75KE
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Page 1: Table Of Contents
Order No: MAC0010055C2 Room Air Conditioner CS-VA75KE CU-VA75KE CS-VA95KE CU-VA95KE CS-VA125KE CU-VA125KE CONTENTS Page Page 1 Features 13 Servicing Information 2 Functions 14 Troubleshooting Guide 3 Product Specifications 15 Technical Data 4 Dimensions 16 Exploded View 5 Refrigeration Cycle Diagram... -
Page 2: Features
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 1 Features • Environmental Friendly • Deodorizing Air Purifying Filter − R410A, which does not contain chlorine, is used as its − Remove unpleasant odors from the air refrigerant, so there is no danger of damage to the ozone layer in Stratosphere. -
Page 3: Functions
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 2 Functions Remote Control Self illuminating button OFF / ON I TEMP. Operation OFF / ON Room Temperature Setting • Temperature Setting (16°C to 30°C) • Automatic Operation MODE Operation with 2°C higher than Operation Mode Selection standard temperature. -
Page 4: Indoor Unit
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Indoor Unit AUTO OFF / ON Automatic Operation Button Sleep Mode Auto Control • Press for < 5s to operate Automatic • Indoor Fan operates at Low speed. operation mode. • Operation stops after 8 hours. - Page 5 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Outdoor Unit CU-VA75KE / CU-VA95KE CU-VA125KE Compressor Reverse Rotation Deice Control Protection Control • To prevent frosting at outdoor heat exchanger. (Only for Heating Operation) • To protect compressor from reverse • Temperature of outdoor heat exchanger rotation when there is a instantaneous is sensed by TRS (Thermal Reed Switch).
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Page 6: Product Specifications
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 3 Product Specifications Unit CS-VA75KE CU-VA75KE Cooling Capacity 2.20 kcal/h 1,890 Heating Capacity 2.40 kcal/h 2,060 Moisture Removal Pint/h Power Source Phase Single Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE... - Page 7 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Power Cord Length — Number of core-wire 3 (1.0 mm — Dimensions Height inch (mm) 10 - 31/32 (279) 18 - 29/32 (480) Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)
- Page 8 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Unit CS-VA95KE CU-VA95KE Cooling Capacity 2.85 kcal/h 2,450 Heating Capacity 3.40 kcal/h 2,920 Moisture Removal Pint/h Power Source Phase Single Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE Air Volume Indoor Air (Lo) /min (cfm) Cooling;...
- Page 9 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Dimensions Height inch (mm) 10 - 31/32 (279) 18 - 29/32 (480) Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780) Depth inch (mm) 7 - 27/32 (199) 9 - 21/32 (245)
- Page 10 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Unit CS-VA125KE CU-VA125KE Cooling Capacity 3.65 kcal/h 3,140 Heating Capacity 4.20 kcal/h 3,610 Moisture Removal Pint/h Power Source Phase Single Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE Air Volume Indoor Air (Lo) /min (cfm) Cooling;...
- Page 11 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Dimensions Height inch (mm) 10 - 31/32 (279) 19 - 7/8 (505) Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780) Depth inch (mm) 7 - 27/32 (199) 9 - 21/32 (245)
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Page 12: Dimensions
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 4 Dimensions... - Page 13 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE...
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Page 14: Refrigeration Cycle Diagram
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 5 Refrigeration Cycle Diagram... - Page 15 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE...
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Page 16: Block Diagram
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 6 Block Diagram... -
Page 17: Wiring Diagram
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 7 Wiring Diagram REMARKS : BLUE : BROWN : BLACK : WHITE : RED : ORANGE : PINK : YELLOW/GREEN Resistance of Indoor Fan Motor Windings MODEL CS-VA75KE CONNECTION CWA921033 707.1 Ω... - Page 18 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE REMARKS : BLUE : BROWN : BLACK : WHITE : RED : ORANGE : PINK : YELLOW/GREEN Resistance of Indoor Fan Motor Windings MODEL CS-VA95KE CONNECTION CWA921043 451.2 Ω YELLOW-BLUE 86.7 Ω...
- Page 19 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE REMARKS : BLUE : BROWN : BLACK : WHITE : RED : ORANGE : PINK : YELLOW/GREEN Resistance of Indoor Fan Motor Windings MODEL CS-VA125KE CONNECTION CWA921031 450.7 Ω YELLOW-BLUE 68.2 Ω...
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Page 20: Operation Details
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8 Operation Details 8.1. Cooling Mode Operation Cooling in operation according to Remote Control setting. Time Delay Safety Control (3 minutes) • When the compressor is stopped by Remote Control, it restarts after 3 minutes when it is turned ON by Remote Control. - Page 21 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Compressor Protection Control • After the compressor starts for 50 seconds but the outdoor fan motor is still OFF, the compressor will stop and restart automatically. (Time Delay Safety Control is valid).
- Page 22 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Cooling Operation Time Diagram...
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Page 23: Soft Dry Mode Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.2. Soft Dry Mode Operation • The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and then Soft Dry operation will start. • During Soft Dry operation, the Indoor Fan will operate at low speed. - Page 24 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Soft Dry Operation Time Diagram...
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Page 25: Heating Mode Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.3. Heating Mode Operation Heating in operation according to Remote Control setting. Time Delay Safety Control • When the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON. - Page 26 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Hot Start Control When Heating operation starts, Indoor Fan will not start until the indoor heat exchanger reaches 30°C as diagram shown. Hot Start is completed when indoor heat exchanger rises to 39°C.
- Page 27 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during heating operation. • Fan speed rotates in the range of Me → Lo according to the heat exchanger temperature.
- Page 28 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Deicing Control Deice starts to prevent frosting at outdoor heat exchanger. • Normal Deicing Deice operations detection commences after 30 minutes of Heating operation starts or 60 minutes after previous deice operation. If the TRS (Thermal Reed Switch) senses the outdoor piping temperature drops to -3°C (TRS CLOSE) or less for 50 sec.
- Page 29 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Normal Deicing Time Diagram Overload Deicing Time Diagram...
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Page 30: Automatic Mode Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.4. Automatic Mode Operation 1. When the Automatic Mode Operation is selected, the indoor fan operates at Lo fan speed for 25 seconds to sense intake air temperature and determine the 1st operation mode. -
Page 31: Random Auto Restart Control
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.5. Sleep Mode Auto Operation Cooling or Soft Dry Operation When you press the SLEEP Mode, the following movement will start to avoid overcooling. • The fan speed refer to Indoor Fan Motor Control. -
Page 32: Indoor Fan Speed Control
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.9. Indoor Fan Speed Control Auto Fan Speed Control When set to Auto Fan Speed, the fan speed is shifted automatically between Stop to SHi depend on each operation as shown below. -
Page 33: Airflow Direction Control
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.10. Airflow Direction Control 1. Vertical Airflow Direction Cooling and Soft Dry Mode • The louver swings up and down as shown above. • The louver can be selected between 14° - 36° (as •... -
Page 34: Economy Mode Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.11. Economy Mode Operation Purpose of this operation is to save or reduced electrical power consumption of the room air conditioner. However consumer is advised to use Economy Mode operation after the room temperature reaches the desired temperature. -
Page 35: Powerful Mode Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8.12. Powerful Mode Operation Purpose of this operation is to be obtain the setting temperature quickly. 1. Cooling and Soft Dry Mode • When the Powerful Mode is set, the set temperature will be automatically decreased 3°C against the present setting temperature. -
Page 36: Operating Instructions
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 9 Operating Instructions SAFETY PRECAUTIONS Before operating, please read the following “Safety Precautions” carefully. To prevent personal injury, injury to others and property damage, the following instructions must be followed. Incorrect operation due to failure to follow instructions will cause harm or damage, the seriousness of which is... -
Page 37: Operation Precautions
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Operation Precautions Do not insert plug to operate the unit. Warning Do not pull out plug to stop the unit. This sign warns of death or serious injury. Plug in properly. Do not share outlet. - Page 38 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Switch off the power supply if the unit is Caution not used for a long period. This sign warns of injury. Do not pull the cord to disconnect the plug. Switch off the power supply before cleaning it.
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Page 39: Name Of Each Part
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE NAME OF EACH PART Indoor Unit Air Intake Vent Front Panel Power Supply Cord Panel Opener Signal Receptor Horizontal Airflow Direction Air Outlet Vent Louver (Manually adjusted) Operation Indicators Vertical Airflow Direction Louver... -
Page 40: Outdoor Unit
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Outdoor Unit CU-VA75KE, CU-VA96KE CU-VA125KE Piping Air Intake (Rear) Vents Connecting cable (Side) Drain Hose Air Outlet Vents Ground Terminal Ground Terminal (Inside Cover) (Inside Cover) Accessories Remote Control Remote Control Holder... - Page 41 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Remote Control Operation Display Signal Transmitter OFF/ON Button (Self-illuminating Button) Room Temperature Setting Button (Self-illuminating Button) Powerful Mode Operation Button When the remote control cover is opened Operation Display Operation Mode Selection Button...
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Page 42: How To Use The Remote Control
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE How to use the remote control Notes • Do not throw or drop • Do not get it wet • Certain type of flourescent lamps may affect signal reception. Consult your dealer. -
Page 43: Preparation Before Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE PREPARATION BEFORE OPERATION Indoor Unit Warning Ensure the power plug is securely inserted. A loose plug may cause a fire or an electric shock. Connect the power supply cord to an independent power supply. -
Page 44: Setting The Clock
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Remote Control Inserting batteries OPEN Slide the cover to open Be sure the directions are correct • Open the remote control cover and confirm the display 12:00 PM is flashing. Set the current time (Clock) immediately to prevent battery exhaustion. -
Page 45: How To Operate
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE HOW TO OPERATE Automatic, Cooling, Soft Dry, Fan Press to select the desired operation mode Display When pressed, the display changes in this order. COOL Close the Cover Press to start the operation POWER indicator LED (Green) on indoor unit will light up. - Page 46 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Adjusting Airflow Direction And Fan Speed Press to select Fan speed • The display changes in this order Automatic Medium High Selecting Vertical Airflow Direction Press AUTO, Selecting Vertical Airflow Direction Press AUTO, •...
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Page 47: Setting The Timer
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE SETTING THE TIMER Ensure that the current time is correct before setting the timer. The timer cannot be set if the time display is flashing. Press ON-TIMER Flashes → Set the ON-TIMER to 7:00AM... - Page 48 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Recommended Setting of Timer When you sleep • Set the time at which you will go to sleep with the OFF- TIMER. This prevent wastage of electricity. When you wake up •...
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Page 49: Convenience Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE CONVENIENCE OPERATION Sleep Mode This is to obtain a comfortable room temperature while sleeping. To set the sleep mode, press SLEEP. * The sleep indicator on the indoor unit will light up. - Page 50 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Economy or Powerful Mode Economy and Powerful operation cannot be selected simultaneously. Economy Mode To save electrical power consumption. However, please use this mode when the room have reached your desired temperature.
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Page 51: Care And Maintenance
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE CARE AND MAINTENANCE Cleaning the Indoor Unit and Remote Control • Wipe gently with a soft, dry cloth. • Do not clean with water hotter than 40°C or with polishing fluids. Caution •... -
Page 52: Cleaning The Front Panel
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Cleaning the Front Panel (Must be removed before washing) Caution • Stand on a level surface when • Do not touch the metal parts in • Do not leave water on the the indoor unit after removing panel after cleaning. - Page 53 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Replacing the Air Purifying Filters (Once every 3 month) • Do not reuse dirty filters. Consult the nearest authorized dealer. (Air Purifying filter No. CZ-SFD50N) • These filters function effectively for not more than three months.
- Page 54 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Pre-season Inspection • Is the discharge air cold (warm)? Operation is normal if, 15 minutes after the start of operation, the temperature difference between the air intake and outlet vents is 8°C or above for cooling and 14°C...
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Page 55: Troubleshooting
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE TROUBLESHOOTING Normal Operation - Is it okay? - This is the answer. - Air conditioner has been restarted, but does not operate for 3 minutes. - A sound like water flowing can - This is to protect the air conditioner. -
Page 56: Abnormal Operation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Abnormal Operation Hmmm! The air conditioner does not operate. Air conditioner operation noise too loud. • Has a circuit breaker been tripped? • Is the installation work slanted? • Has the power plug been removed •... -
Page 57: Helpful Information
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE HELPFUL INFORMATION Auto Operation Button Automatic Operation • If the remote control fails to function or misplaced, press Auto Operation button for Automatic operation. • The Automatic operation will be activated immediately once the Auto operation button is pressed. -
Page 58: Energy Saving And Operation Hints
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE ENERGY SAVING AND OPERATION HINTS Air Filter and Air Purifying Filter Clean the air filter every 2 weeks and change the Air Purifying Filter every 3 Setting Temperature months. Dirty filter may reduces cooling Set the temperature 1°C higher... - Page 59 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Warning 1) This appliance must be earthed. 2) If the supply cord is damaged or need to be replaced, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.
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Page 60: Installation And Servicing Air Conditioner Using R410A
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 10 Installation And Servicing Air Conditioner Using R410A 10.1. OUTLINE 10.1.1. About R410A Refrigerant 1. Converting air conditioners to R410A Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a destructive danger to the ozone layer in the earth´s upper stratosphere (20 to 40 km above the earth), measures have been... - Page 61 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE d. R410A refrigerating machine oil Conventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for R22 refrigerating machine oil. Because of the poor compatibility between R410A and conventional oils like mineral oil, however, there is a tendency for the refrigerating machine oil to collect in the refrigerating cycle.
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Page 62: R410A Tools
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 10.2.2. R410A Tools 1. Cooper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type)) • This gauge makes it easy to set the clearance for the copper tube to 1.0-1.5 mm from the clamp bar of the... - Page 63 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 5. Charging hose • The pressure resistance of the charging hose has been raised to match the higher pressure of R410A. The hose material has also been changed to suit HFC use, and the size of the fitting has been changed to match the manifold ports.
- Page 64 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 8. Electronic scale for refrigerant charging • Because of the high pressure and fast vaporizing speed of R410A, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is...
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Page 65: Refrigerant Piping Work
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 10.3. REFRIGERANT PIPING WORK 10.3.1. Piping Materials It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not used pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog the expansion valves or capillaries. - Page 66 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Table 11 R410A flaring dimensions Nominal Outside Wall thickness A (mm) diameter diameter (mm) R410A flaring Conventional flaring tool (mm) tool, clutch type Clutch type Wing-nut type 6.35 0 - 0.5 1.0 - 1.5 1.5 - 2.0...
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Page 67: Refrigerant Piping
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE b. Copper pipes Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily distinguished from other piping materials, to prevent mistaken use. - Page 68 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 10.4.2. Transferring (Using New Refrigerant Piping) 1. Removing the unit a. Collecting the refrigerant into the outdoor unit by pumping down The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the temperature of the room is low.
- Page 69 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 5. Set the refrigerant cylinder onto the electronic scale, then correct the hose the cylinder and to the connection port for the electronic scale. (1)(2) Precaution: Be sure to set up the cylinder for liquid charging. If you use a cylinder equipped with a siphon tube, you can charge the liquid without having to turn the cylinder around 6.
- Page 70 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE <Brazing Method for Preventing Oxidation> 1. Attach a reducing valve to the nitrogen gas cylinder. 2. Attach a reducing valve to the nitrogen gas cylinder. 3. Apply a seal onto the clearance between the piping and inserted pipe for the nitrogen gas in order to prevent the nitrogen gas from flowing backward.
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Page 71: Installation Instructions
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 11 Installation Instructions Required tools for Installation Works 1. Phillips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench 18 N.m (1.8 kgf.m) - Page 72 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE • When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refregeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials.
- Page 73 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE Attached accessories Indoor/Outdoor unit installation diagram Applicable piping kit CZ-3F5, 7AEN (CS/CU-VA75KE, VA95KE) CZ-4F5, 7, 10AN (CS/CU-VA125KE) SELECT THE BEST LOCATION INDOOR UNIT • There should not be any heat source or steam near the unit.
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Page 74: Select The Best Location
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 11.2. INDOOR UNIT 11.2.1. SELECT THE BEST LOCATION 11.2.3. TO DRILL A HOLE IN THE WALL (Refer to “Select the best location” AND INSTALL A SLEEVE OF section) PIPING 1. Insert the piping sleeve to the hole. - Page 75 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 3. For the embedded piping (This can be used for left rear piping and left bottom piping also.)
- Page 76 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 11.2.5. 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 5 ×...
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Page 77: Connecting The Piping
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE HOW TO TAKE OUT FRONT GRILLE 11.3. OUTDOOR UNIT Please follow below steps to take out front grille if necessary 11.3.1. SELECT THE BEST LOCATION such as when servicing. (Refer to “Select the best location”... -
Page 78: Evacuation Of The Equipment
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE CUTTING AND FLARING THE PIPING 5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve. 1. Please cut using pipe cutter and then remove the burrs. - Page 79 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE DISPOSAL OF OUTDOOR UNIT DRAIN WATER CHECK ITEMS • If a drain elbow is used, the unit should be placed on a Is there any gas leakage at flare nut connections? stand which is taller than 3 cm.
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Page 80: 12 2-Way, 3-Way Valve
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12 2-way, 3-way Valve 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Works Shaft Position Shaft Position Service Port Shipping Close Closed Closed (With valve cap) (With valve cap) (With cap) Evacuation... -
Page 81: Evacuation Of Installation
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12.1. Evacuation of Installation WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO If air remain in the indoor unit and refrigeration pipes, it will EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES affect the compressor, reduce to cooling capacity, and could in the following procedure. -
Page 82: Pumping Down
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12.2. Pumping down Procedure: 1. Confirm that both the 2-way and 3-way valves are set to 6. Operate the air conditioner at the cooling cycle and the opened position. stop it when the gauge indicates 0 MPa (0 kg/cm •... - Page 83 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12.3. Evacuation of Re-installation WHEN REINSTALLING AN AIR CONDITIONER, BE SURE TO If air remain in the indoor unit and refrigeration pipes, it will EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES affect the compressor, reduce to cooling capacity, and could in the following procedure.
- Page 84 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12.4. Balance refrigerant of the 2-way, 3-way valves (Lack of refrigerant in the refrigeration cycle) Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port.
- Page 85 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12.5. Evacuation (No refrigerant in the refrigeration cycle) Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. • Confirm that the gauge needle has moved toward -0.1 MPa (-76 cmHg) [vacuum of 4 mmHg or less.]...
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Page 86: Gas Charging
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 12.6. Gas charging (After Evacuation) Procedure: 1. Connect the charge hose to the charging cylinder. This is different from previous procedures. Because you are • Connect the charge hose which you disconnected from... -
Page 87: Servicing Information
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 13 Servicing Information • Inspection points for the Indoor Electronic Controller 1. The Electronic Controller, a signal Receiver and an Indicator (Fig. 2) can be seen by the below steps: − Remove the 2 caps and 2 screws at the bottom of the front grille. - Page 88 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE − Finally remove the fan motor by removing the screw. (Fig. 5) − REMINDER - To reinstall the fan motor, adjust the connector of the fan motor as Fig. 5. Fig. 5 •...
- Page 89 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE batteries are replaced, all the indications will blink and the remote control might not work. If this happen, remove the back cover of the remote control and you will find a resetting terminal, and by shorting it with a minus screwdriver, it will return to normal.
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Page 90: Troubleshooting Guide
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 14 Troubleshooting Guide 14.1. 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. - Page 91 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 14.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current Low Pressure High Pressure...
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Page 92: Technical Data
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 15 Technical Data... - Page 93 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.18 1.65 0.59 2.04 1.59 0.63 1.90 1.52 0.67 1.72 1.45 0.73 19.0°C 2.20 0.64 19.5°C 2.40 1.73 0.60 2.24 1.66 0.64 2.08 1.60...
- Page 94 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE...
- Page 95 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE...
- Page 96 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE...
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Page 97: Exploded View
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 16 Exploded View 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: Replacement Parts List
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 17 Replacement Parts List <Model: CS-VA75KE / CS-VA95KE / CS-VA125KE> DESCRIPTION & NAME Q’TY CS-VA75KE CS-VA95KE CS-VA125KE REMARKS ← ← CHASSY COMPLETE CWD50C338 ← ← PARTICULAR PIECE CWD931019 FAN MOTOR CWA921033 CWA921043 CWA921031 ←... -
Page 99: Exploded View
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 18 Exploded View 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: Replacement Parts List
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 19 Replacement Parts List <Model: CU-VA75KE / CU-VA95KE> DESCRIPTION & NAME Q’TY CU-VA75KE CU-VA95KE REMARKS CHASSY ASS’Y CWD50K2037A CWD50K2038A ← FAN MOTOR BRACKET CWD54113 ← SCREW - FAN MOTOR BRACKET CWH4580399 ←... -
Page 101: Exploded View
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 20 Exploded View 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: Replacement Parts List
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 21 Replacement Parts List <Model: CU-VA125KE> DESCRIPTION & NAME Q’TY CU-VA125KE REMARKS CHASSY ASS’Y CWD50K612A FAN MOTOR BRACKET CWD54155 SCREW - FAN MOTOR BRACKET CWH4580399 FAN MOTOR CWA95245 SCREW - FAN MOTOR MOUNT... -
Page 103: Electronic Parts List
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 22 Electronic Parts List <Electronic Controller Part No.: CWA742335, CWA742341, CWA742336> SYMBOL DESCRIPTION & NAME PART NO. SOUND GENERATOR A48040 TRANSFORMER A40322 D1, D4 DIODE A541SR154-4 DIODE A54RB501V-40 DIODE A541SS355T DIODE A54CS1VB20E... -
Page 104: Electronic Circuit Diagram
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 23 Electronic Circuit Diagram • CS-VA75KE / CU-VA75KE • CS-VA95KE / CU-VA95KE • CS-VA125KE / CU-VA125KE SCHEMATIC DIAGRAM 1/3 MAIN RECEIVER (PH3) PH302C CN-RCV VCC1 5.1k RY-PWR DRIVE RY-PWR 2SD148-4X 0.01µ 0.01µ... - Page 105 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE SCHEMATIC DIAGRAM 2/3 4.7k 4.7k A55DC143XKTX RELAY DRIVE 4.7k A55DC143XKTX RY-SHI RELAY DRIVE RY-H RY-M SSR1 RY-HOT 4.7k A55DC143XKTX SSR2 RELAY DRIVE A55DC143XKTX RELAY DRIVE SSR1 TIMER STEPPING MOTOR SHORTEN DRIVE SIGNAL...
- Page 106 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE SCHEMATIC DIAGRAM 3/3 AC 230V 50Hz SINGLE PHASE TEMPERATURE FUSE 102 C CN-FUSE2 CN-FUSE1 (RED) (BLU) (WHT) CWA40322 RY-HOT ZNR2 CWA00161 ERZ-TCEAK471 RY-PWR TERMINAL SSR2 FUSE A56W2DEH1-5 2.0A CWA59015 WHITE A54MA165TA5 BLACK...
- Page 107 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE...
- Page 108 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE How to use electronic circuit diagram TIMER TABLE Test mode Name Time (When test point Remarks Short-circuited) Sleep Mode Waiting 1 hr. 6 sec. Sleep Mode Operation 8 hrs. 48 sec. Real Timer 1 hr.
- Page 109 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 23.1. REMOTE CONTROL...
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Page 110: Print Pattern Indoor Unit Printed Circuit Board
CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 23.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD TOP VIEW... - Page 111 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE 23.3. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD BOTTOM VIEW...
- Page 112 CS-VA75KE CU-VA75KE / CS-VA95KE CU-VA95KE / CS-VA125KE CU-VA125KE [MACC] Printed in Malaysia...