Air conditioner indoor unit cs-e10jd3ea; cs-e15jd3ea; cs-e18jd3ea; cs-e21jd3ea outdoor unit single split outdoor unit cu-e10hbea; cu-e15hbea; cu-e18hbea; cu-e21hbea multi split outdoor unit cu-2e15gbe; cu-2e18cbpg; cu-3e18ebe; cu-3e18jbe; cu-3e23cbpg; c (12 pages)
Air conditioner indoor unit cs-xe7jkew; cs-xe9jkew; cs-xe12jkew; cs-xe15jkew single split outdoor unit cu-e7jke; cu-e7jke-3; cu-e9jke; cu-e9jke-3; cu-e12jke; cu-e12jke-3; cu-e15jke; cu-e15jke-1 multi split outdoor unit cu-2e15gbe; cu-2e18cbpg; cu-3e18ebe; (11 pages)
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 1 Features · Product − − − − A single OUTDOOR unit enables air conditioning of up to four separate rooms − − − − Inverter controlled for High energy efficiency and optimal comfort −...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9 Operation Details (Functions & Protection) 9.1. INDOOR UNIT OPERATION 9.1.1. Simultaneous Operation Control 1. Operation modes which can be selected using the remote control unit: Automatic, Cooling, Dry, Heating, Fan operation mode.
Page 24
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.2. Room Temperature Control (Compressor Control) The room temperature is adjusted by changing the compressor´s operation frequency in response to the difference between setting temperature of remote control unit and the room temperature (intake air temperature sensor).
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.3. Airflow direction Control The vertical airflow direction louver is controlled as shown in the table below in response to the operation of the remote control air swing button and the operating conditions.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.4. Indoor Fan Control · Depending on the airflow selector button setting of the remote control unit and the operating conditions, the operations for indoor fan control are as shown in the table below.
Page 28
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.4.1. Cooling Operation 1. Automatic fan speed This air conditioner comes with a odour removing function. When operation starts or the thermostat is set ON, the fan stops for 40 seconds.
Page 29
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.4.2. Dry Mode Operation 1. Basic fan speed In the cooling zone, the fan speed for cooling operations is used. When it reaches into the dry mode zone, operation is performed at the SLo fan speed.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.5. Automatic Operation · The operation mode (cooling, dry or heating) is selected automatically. · The operation mode is first selected when operation starts and re-selected after each 3-hours period. The temperature, fan speed and airflow direction are set using the remote control.
Page 31
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG · When the operation mode is changed over, the value for t1, t2 and t3 are shifted as follows: Cooling/Soft dry → Heating: -2 °C Heating →...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 2. Sleep mode operation during heating operation 9.1.7. Timer Operation Delay ON/OFF timer · In accordance with the air-conditioning load, the preparatory operation is performed so that the setting temperature will be reached at the set time.
Page 33
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.8. Filter Cleaning Indicator · The blinking filter lamp warns the user that the air filter is dirty. When the air conditioner has operated for a total of 360 hours or so, this lamp blinks during cooling and heating operation and stop.
Page 34
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.9.2. Odour Clear Mode Operation (Off-Season) · By conducting heating operations simultaneously in all the rooms for a short period of time, the odour components are removed, the insides of the indoor units are dried out, and the growth of mold is minimized.
Page 35
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG (2) Odour clear mode operation (with timer setting) · The POWER lamp lights up if the air conditioner is operated before the odour clear operation, and it goes off if air conditioner has been stop.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.10. Auto Restart Control · if there is a power failure, operation will automatically be restarted when the power is resumed. It will start with the previous operation mode and airflow direction.
Page 37
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.11. Other Indoor Unit Operation Functions · Auto button Proceed with operation when the air conditioner is stopped. (When the auto button is pressed during operation, the air conditioner is stopped.) 1.
Page 38
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Setting the air conditioner unit to “B” 1. Press the “AUTO” button for about 11 to 15 seconds. When you hear three short beeps “pep, pep, pep”, release the button.
Page 39
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.12. Self Diagnosis display The diagnostic displays that appear when trouble has occurred can be checked using the remote control unit. When trouble occurs, operation is stopped automatically, and the timer lamp blinks. The diagnosis time has been reduced by warning the user by means of the blinking of the timer lamp.
Page 40
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.1.12.1. Error Cord Diagnostic Display Abnormality or Protection control Works H 11 Indoor/Outdoor abnormal communication H 12 Indoor unit capacity unmatched H 14 Intake air temp.sensor...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.2.3. Protection Control 9.2.3.1. Time Delay Safety Control · The compressor does not restart for 3 minutes after stop of compressor. 9.2.3.2. Total Running Current Control 1.
Page 43
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.2.3.5. Over Load Protection Control (Cooling . Dry Mode) · Cooling over load protection control 1. When the temperature of the outdoor unit heat exchanger exceeds 52 °C during a cooling or dehumidifying operation, the compressor frequency is restricted, and when it exceeds 62 °C, the compressor is stopped.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.2.3.7. 4-way Valve Failure Protection Control (Cooling/Heating Switching Errors) · During a cooling operation 1. If the temperature of the indoor unit heat exchanger exceeds 45 °C 4 minutes after the compressor started, the compressor is stop.
Page 45
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.2.4. Abnormal Wiring or Piping Connection Checking Control 1. Objective To check for Abnormal Wiring or Piping connections during a cooling operation after the air conditioner has been installed.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.3. OUTDOOR UNIT OPERATION (CU-3E23CBPG/CU-4E27CBPG) 9.3.1. Room Temperature Control 9.3.1.1. Cooling, Dry and Heating Operations Concerning CU-3E23CBPG and CU-4E27CBPG compressor frequency control 1. Immediately after the compressor has started up during an ongoing operation, the initial frequency is determined on the basis of the information obtained from the heat exchanger capacities of the indoor units (thermostat ON) and the airflows set by their remote controls.
Page 47
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.3.3. Forced Cooling Operation Control · Forced cooling operations can be performed by the outdoor unit. 1. Set the operation mode setting switch (SW2) to COOL.
Page 48
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9.3.4. Wiring Error Check Control The useful wiring error check function automatically corrects Basic knowledge wiring errors using a microcomputer. · The principle operation of this function is as follows: The...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 10 Installation and Servicing Air Conditioner Using R410A (General Information) 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エs upper stratosphere (20 to 40 km above the earth), measures have been...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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 52
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 5. Charging hose · The pressure resistance of the charging hose has been raised to match the higher pressure of R410A. The hose...
Page 53
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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).
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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 57
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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 58
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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.
Page 59
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 10.4.6. Brazing As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (N2) flow.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 11 Installation Information 11.1. OUTDOOR UNIT (CU-2E15CBPG/2E18CBPG) 11.1.1. Check Points 11.1.2. The Shapes of the 3-way Valve Caps of the Outdoor Unit have been Changed.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 11.3. OUTDOOR UNIT (CU-4E27CBPG) 11.3.1. Check Points 11.3.2. The Pipe Diameter for the 4.0 kW or Above Models has been Reduced. · 1/4” and 3/8” pipes are used for models with a rated cooling capacity of up to 5.0 kW.
Page 66
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG HOW TO FIX INSTALLATION PLATE The mounting wall is strong and solid enough to prevent it from the vibration. Wall Wall More than 440 mm More than 425 mm Screw ˇ...
Page 67
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG INDOOR UNIT INSTALLATION 1. FOR THE RIGHT REAR PIPING Pull out the piping and drain hose Install the Indoor Unit Pull out the Indoor piping...
Page 68
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 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 x 1.5 mm...
Page 69
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG INSTALLATION OF AIR PURIFYING FILTERS CHECK THE DRAINAGE 1. Open the front panel. • Open front panel and remove air filters. 2. Remove the air filters.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 12.2. OUTDOOR UNIT (CU-2E15CBPG/2E18CBPG) Attached accessories. Indoor/Outdoor Unit Installation Diagram Accessories part Qty. No. Accessories part Qty. Piping direction Attention not to Installation plate...
Page 71
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG SELECT THE BEST LOCATION (Refer to “Select the best location” section) INSTALL THE OUTDOOR UNIT • After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram.
Page 72
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION) WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDETHE INDOOR UNIT AND PIPES in the following procedure.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 12.3. OUTDOOR UNIT (CU-3E23CBPG/CU-4E27CBPG) Accessories Accessories supplied with the outdoor unit: CU-3E23CBPG (A) Drain plug (B) Screw bag (For fixing electrical wire anchor bands) There is on the bottom packing case.
Page 74
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Outdoor Unit Installation Drawings For installation of the indoor units, refer to the installation manual which was provided with the units. (The diagram shows a wall-mounted indoor unit.)
Page 75
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Outdoor Unit Installation Guidelines Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation guidelines below.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 3P097711-1 (M02B043) Outdoor Unit Installing Outdoor Unit When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Indoor/outdoor Unit Installation Drawings.”...
Page 77
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Flaring the Pipe End (Cut exactly at right angles.) 1. Cut the pipe end with a pipe cutter. Remove burrs 2. Remove burrs with the cut surface facing...
Page 78
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Wiring WARNING Do not use tapped wires, stand wires, extensioncords, or starbust connections, as they may cause overheating, electrical shock, or fire. Do not turn ON the safety breaker until all work...
Page 79
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Test Run and Final Check Before starting the test run, measure the voltage at the primary side of the safety To test cooling, set for the lowest temperature. To test heating, set for the highest temperature.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13 Servicing Information 13.1. TROUBLESHOOTING 13.1.1. Rated Frequency Operation During troubleshooting and servicing, rated compressor operating frequency must be obtained in order to check the specification and technical data.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.2. SELF DIAGNOSIS DISPLAY 13.2.1. Indoor Unit [Table of diagnosis methods] Symbol Diagnosis Diagnosis method Indoor/Outdoor This trouble display appears when indoor/outdoor unit communication fails to be established after 30 or more abnormal seconds.
Page 83
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Symbol Diagnosis Diagnosis method Outdoor discharge CU-2E: pipe temp. sensor This trouble display appears when a temperature of under approximately -16 °C or above approximately 200 °C has been detected by the outlet temperature sensor for 2 to 5 seconds.
Page 84
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Symbol Diagnosis Diagnosis method Indoor operating unit The restriction on the compressor frequency is started when the indoor unit heat exchanger temperature is freezing between 8 °C and 12 °C.
Page 85
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Symbol Diagnosis Diagnosis method Compressor CU-2E: abnormal revolution When the rotation of the compressor is not synchronized with the control signal, the F93 diagnostic display is stored in the memory, and operation stops.
Page 86
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Symbol Diagnosis Diagnosis method DC peak detection CU-2E: If the current level exceeds 22.5A after startup, the compressor stops, and it is restarted 3 minutes later. When this occurs on 7 consecutive occasions, operation stops, and the trouble display appears.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.3. DISASSEMBLY OF PARTS 13.3.1. Indoor Unit 1. Remove the control box cover (steel plate). 2. Remove the display P.C. Board (plastic). 3. Disconnect the connectors, rearrange the lead wires, and remove the discharge grille.
Page 89
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 6. Remove the control board complete. 7. Remove the screw at the particular plate (heat exchanger clamp) on the left of the unit.
Page 90
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 9. Remove the four screws that fix the fan motor cover (white), and release the hooks. 10. Hold down the hook of the heat exchanger using a screwdriver or other tool and remove the heat exchanger (while lifting 1, 2).
Page 91
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 11. Remove the screw that fix the fan, and then remove the fan motor. 12. Remove the cross-flow fan, and then remove the flucrum.
Page 92
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.3.2. OUTDOOR UNIT (CU-2E15CBPG/2E18CBPG) 13.3.2.1. Removing the Cabinet Top Plate and Cabinet Front Plate 1. Remove the cabinet top plate (by removing the 4 screws).
Page 93
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.3.2.3. Removing the Control P.C. Board 6. Remove the control board cover. 7. Remove the 6 screws at the positions on the control P.C. Board indicated by the arrows.
Page 94
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.3.3. OUTDOOR UNIT (CU-3E23CBPG/CU-4E27CBPG) 13.3.3.1. Removing the Cabinet Top Plate and Cabinet Front Plate I I I I CU-3E23CBPG 1. Remove the cabinet top plate (remove the 4 screws).
Page 95
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.3.3.2. Remove the Control Board Cover (Right Side Plate for CU-4E27CBPG) I I I I CU-3E23CBPG 3. Remove the control board cover (remove 2 screw).
Page 96
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 13.3.3.3. Removing the Control P.C. Board 4. Remove the drip proof cover. 5. Disconnect the connectors (lead wires of the compressor, sensor, and others).
Page 105
INDOOR Timer Table Indoor Microprocessor UPD784956GC-121-8BT Function Time Test mode Pin No. Port No. Description Pin No. Port No. Description 24 hours OFF/ON timer 1 hour 1 min. Cooling FC max 30 min. 3 sec. Buzzer Drive Hot start forced completion 7 min.
Page 108
2-ROOM OUTDOOR Timer Table Outdoor IC201 Outdoor Microprocessor A52D4956G122 Function Time Test mode Pin No. Port No. Description Pin No. Port No. Description First deice operation time 60 min. 6 sec. Deice operation starting 45 sec. 4.5 sec. Deice forced completion 10 min.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16 Exploded View & Replacement Parts List 16.1. CS-ME7CKPG/ME10CKPG/ME12CKPG/ME14CKPG/ME18CKPG 16.1.1. Exploded View Note: The above exploded view is for the purpose of parts disassembly and replacement.
Page 112
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.1.2. Replacement Parts List <Model: CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG> Ref. Part Name & Description Q’ty Part No. Remarks...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.2. CU-2E15CBPG/2E18CBPG 16.2.1. 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 114
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.2.2. Replacement Parts List <Model: CU-2E15CBPG / CU-2E18CBPG> Ref. No. Part Name & Description Q’ty Part No. Remarks CU-2E15CBPG CU-2E18CBPG ← ← ← ←...
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.3. CU-3E23CBPG 16.3.1. 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 117
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.3.2. Replacement Parts List <Model: CU-3E23CBPG> Ref. No. Part Name & Description Q’ty Part No. Remarks G G G G SWING COMPRESSOR CW1266081...
Page 118
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Ref. No. Part Name & Description Q’ty Part No. Remarks G G G G MOTORIZED EXP. V COIL, ASS’Y CW1313350 COIL, MOTORIZED EXP. VALVE CW1305234 COIL, MOTORIZED EXP.
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.4. CU-4E27CBPG 16.4.1. 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 120
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG 16.4.2. Replacement Parts List <Model: CU-4E27CBPG> Ref. No. Part Name & Description Q’ty Part No. Remarks G G G G SWING COMPRESSOR CW1266081...
Page 121
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG Ref. No. Part Name & Description Q’ty Part No. Remarks G G G G POWER TRANSISTOR MODULE CW1289921 G G G G THERMISTOR ASS’Y...