Panasonic CS-E12JKKW-1 Service Manual
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Panasonic CS-E12JKKW-1 Service Manual

Air conditioner
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Please file and use this manual together with the service manual for Model No. CU-2E18JBK-1, Order No. PHAAM1006154C1.
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 frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

TABLE OF CONTENTS

1. Safety Precautions.............................................3
2. Specification .......................................................5
3. Features ............................................................11
CS-E12JKKW-1
CS-E18JKK-1
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
4.1
Indoor Unit..................................................12
4.2
Outdoor Unit ...............................................12
4.3
Remote Control ..........................................12
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No: PHAAM1006152C1
Outdoor Unit
CU-E12JKK-1
CU-E18JKK-1

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Summary of Contents for Panasonic CS-E12JKKW-1

  • Page 1: Table Of Contents

    4. Location of Controls and Components..12 1. Safety Precautions..........3 Indoor Unit..........12 2. Specification ............5 Outdoor Unit ..........12 Remote Control ..........12 3. Features ............11 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law.
  • Page 2 16.3 Error Code Table ........67 6. Refrigeration Cycle Diagram ......16 16.4 Self-diagnosis Method....... 69 CS-E12JKKW-1 CU-E12JKK-1 ....16 17. Disassembly and Assembly Instructions ..97 CS-E18JKK-1 CU-E18JKK-1 ....17 17.1 Indoor Electronic Controllers, Cross Flow Fan 7. Block Diagram ..........18 and Indoor Fan Motor Removal CS-E12JKKW-1 CU-E12JKK-1 ....18...

  • 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, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). 20.

  • Page 5: Specification

    2. Specification Indoor CS-E12JKKW-1 Model Outdoor CU-E12JKK-1 Performance Test Condition Phase, Hz Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. 1.20 3.48 3.85 1.20 3.48 3.85 Capacity BTU/h 4100 11900 13100 4100 11900 13100 Running Current Input Power 1.15k...
  • Page 6 Type Propeller Material Motor Type Induction (6 poles) Input Power Output Power Speed 760 - 840 Moisture Removal L/h (Pt/h) 1.1 (2.3) Cooling : 6.0 (210) /min (ft /min) Heating : 9.2 (323) Cooling : 7.5 (264) /min (ft /min) Heating : 10.1 (355) Cooling : 9.7 (345) Indoor Airflow...
  • Page 7 DRY BULB WET BULB Maximum 89.6 73.4 Indoor Operation Range (Cooling) Minimum 60.8 51.8 Maximum 109.4 78.8 Outdoor Operation Range (Cooling) Minimum 60.8 51.8 Maximum 86.0 Indoor Operation Range (Heating) Minimum 60.8 Maximum 75.2 64.4 Outdoor Operation Range (Heating) Minimum Cooling capacities are based on indoor temperature of 27°C DRY BULB (80.6°F DRY BULB), 19.0°C WET BULB (66°F WET BULB) and outdoor air temperature of 35°C DRY BULB (95°F DRY BULB), 24°C WET BULB (75.2°F WET BULB) Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F...
  • Page 8 Indoor CS-E18JKK-1 Model Outdoor CU-E18JKK-1 Performance Test Condition Phase, Hz Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. 1.30 5.01 5.80 1.30 5.01 5.80 Capacity BTU/h 4400 17100 19800 4400 17100 19800 Running Current Input Power 1.30k 1.85k 1.30k 1.85k 5.20...
  • Page 9 Type Propeller Material Motor Type Induction (8 poles) Input Power Output Power Speed 500 - 550 Moisture Removal L/h (Pt/h) 1.7 (3.6) Cooling : 12.5 (441) /min (ft /min) Heating : 13.6 (479) Cooling : 13.7 (485) /min (ft /min) Heating : 14.8 (526) Cooling : 16.0 (565) Indoor Airflow...
  • Page 10 DRY BULB WET BULB Maximum 89.6 73.4 Indoor Operation Range (Cooling) Minimum 60.8 51.8 Maximum 109.4 78.8 Outdoor Operation Range (Cooling) Minimum 60.8 51.8 Maximum 86.0 Indoor Operation Range (Heating) Minimum 60.8 Maximum 75.2 64.4 Outdoor Operation Range (Heating) Minimum Cooling capacities are based on indoor temperature of 27°C DRY BULB (80.6°F DRY BULB), 19.0°C WET BULB (66°F WET BULB) and outdoor air temperature of 35°C DRY BULB (95°F DRY BULB), 24°C WET BULB (75.2°F WET BULB) Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F...

  • Page 11: Features

    3. Features • Inverter Technology Wider output power range Energy saving Quick Cooling More precise temperature control • Environment Protection Non-ozone depletion substances refrigerant (R410A) • Long Installation Piping CS/CU-E12JK-1, long piping up to 49.2 ft CS/CU-E18JK-1, long piping up to 65.6 ft •...

  • Page 12: Location Of Controls And Components

    4. Location of Controls and Components Indoor Unit Outdoor Unit Remote Control...

  • Page 13: Dimensions

    5. Dimensions Indoor Unit 5.1.1 CS-E12JKKW-1...
  • Page 14 5.1.2 CS-E18JKK-1...

  • Page 15: Outdoor Unit

    Outdoor Unit 5.2.1 CU-E12JKK-1 5.2.2 CU-E18JKK-1...

  • Page 16: Refrigeration Cycle Diagram

    6. Refrigeration Cycle Diagram CS-E12JKKW-1 CU-E12JKK-1...

  • Page 17: Cs-E18Jkk-1 Cu-E18Jkk-1

    CS-E18JKK-1 CU-E18JKK-1...

  • Page 18: Block Diagram

    7. Block Diagram CS-E12JKKW-1 CU-E12JKK-1...

  • Page 19: Cs-E18Jkk-1 Cu-E18Jkk-1

    CS-E18JKK-1 CU-E18JKK-1...

  • Page 20: Wiring Connection Diagram

    8. Wiring Connection Diagram Indoor Unit 8.1.1 CS-E12JKKW-1...
  • Page 21 8.1.2 CS-E18JKK-1...

  • Page 22: Outdoor Unit

    Outdoor Unit 8.2.1 CU-E12JKK-1...
  • Page 23 8.2.2 CU-E18JKK-1...

  • Page 24: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit 9.1.1 CS-E12JKKW-1...
  • Page 25 9.1.2 CS-E18JKK-1...

  • Page 26: Outdoor Unit

    Outdoor Unit 9.2.1 CU-E12JKK-1...
  • Page 27 9.2.2 CU-E18JKK-1...

  • Page 28: Printed Circuit Board

    10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board...
  • Page 29 10.1.2 Power Printed Circuit Board 10.1.3 Indicator Printed Circuit Board...

  • Page 30: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board 10.2.1.1 CU-E12JKK-1...
  • Page 31 10.2.1.2 CU-E18JKK-1...

  • Page 32: Installation Instruction

    11. Installation Instruction 11.1 E12JKKW-1 11.1.1 Select the Best Location 11.1.2 Indoor/Outdoor Unit Installation Diagram 11.1.1.1 Indoor Unit • Do not install the unit in excessive oil fume areas such as kitchens, workshops and etc. • There should not be any heat source or steam near the unit.
  • Page 33 11.1.3 Indoor Unit 11.1.3.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent if from the vibration. The centre of installation plate should be at more than at right and left of the wall. The distance from installation plate edge to ceiling should more than From installation plate left edge to unit’s left side is From installation plate right edge to unit’s right side is...
  • Page 34 11.1.3.3 Indoor Unit Installation 11.1.3.4 For the right rear piping 11.1.3.5 For the right bottom piping 11.1.3.6 For the embedded piping (This can be used for left rear piping and bottom piping also.)
  • Page 35 11.1.3.7 Connect the Cable to the Indoor Unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassis.
  • Page 36 11.1.3.8 Wiring Stripping and connecting requirement 11.1.3.9 Cutting and flaring the piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.

  • Page 37: Install The Outdoor Unit

    11.1.4 Outdoor Unit 11.1.4.1 Install the Outdoor Unit • After selecting the best location, start installation according to indoor/outdoor unit installation diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø13/32’’). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
  • Page 38 11.1.4.2.4 Gas Leak Checking Pressure test to system to 400 PSIG with dry nitrogen, in stages. Thoroughly leak check the system. If the pressure holds, release the nitrogen and proceed to section 4. 11.1.4.2.5 Evacuation of the equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedures.
  • Page 39 8. Connect the power cord and connecting wire between indoor unit and outdoor unit according to the diagram below. 9. Secure the wire onto the control board with the holder (clamper). 10. After completing wiring connections, reattach the control board cover (Metal and Resin) and the top panel to the original position with the screws.

  • Page 40: E18Jkk-1

    11.2 E18JKK-1 11.2.1 Select the Best Location 11.2.2 Indoor/Outdoor Unit Installation Diagram 11.2.1.1 Indoor Unit • Do not install the unit in excessive oil fume areas such as kitchens, workshops and etc. • There should not be any heat source or steam near the unit.
  • Page 41 11.2.3 Indoor Unit 11.2.3.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent if from the vibration. The centre of installation plate should be at more than at right and left of the wall. The distance from installation plate edge to ceiling should more than From installation plate left edge to unit’s left side is From installation plate right edge to unit’s right side is...
  • Page 42 11.2.3.3 Indoor Unit Installation 11.2.3.4 For the right rear piping 11.2.3.5 For the right bottom piping 11.2.3.6 For the embedded piping (This can be used for left rear piping and bottom piping also.)
  • Page 43 11.2.3.7 Connect the Cable to the Indoor Unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassis.
  • Page 44 11.2.3.8 Wiring Stripping and connecting requirement 11.2.3.9 Cutting and flaring the piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.
  • Page 45 11.2.4 Outdoor Unit 11.2.4.1 Install the Outdoor Unit • After selecting the best location, start installation according to indoor/outdoor unit installation diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø13/32’’). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.

  • Page 46: Evacuation Of The Equipment

    11.2.4.3 Evacuation of the equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedures. 1. 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 47 9. Secure the wire onto the control board with the holder (clamper). 10. After completing wiring connections, reattach the particular plate control board cover (Metal and Resin) and the original position with the screws. 11. For wire stripping and connection requirement, refer to instruction of indoor unit.

  • Page 48: 12. Operation Control

    12. Operation Control 12.1 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 49: Indoor Fan Motor Operation

    12.1.3.2 Thermostat control (E18JKK-1) • Compressor is OFF when Intake Temperature - Internal Setting Temperature < 28.4°F. • Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point. 12.1.4 Heating Operation 12.1.4.1 Thermostat control...

  • Page 50: Outdoor Fan Motor Operation

    • Auto Fan Speed [Cooling, Dry] According to room temperature and setting temperature, indoor fan speed is determined automatically. The indoor fan will operate according to pattern below. During operation, indoor fan motor may stop due to odor prevention. [Heating] According to indoor pipe temperature, automatic heating fan speed is determined as follows.

  • Page 51: Airflow Direction

    12.5 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 52: Quiet Operation

    12.5.3 Horizontal Airflow 12.5.3.1 E12JKK-1 The horizontal airflow direction louvers can be adjusted manually by hand. 12.5.3.2 E18JKK-1 • Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below.

  • Page 53: Quiet Operation (Heating)

    When quiet operation is stopped, operation is shifted to normal operation with previous setting. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode. During quiet operation, if ON timer activates, quiet operation maintains.

  • Page 54: Timer Control

    12.9 Timer Control 12.9.1 ON Timer Control • ON Timer can be set using remote control, where the unit with timer set will start operation earlier than the setting time. This is to provide a comfortable environment when reaching the set ON time. •...

  • Page 55: Operation Control

    13. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s operation controls are same with single split connection unless specified in this chapter. 13.1 Cooling operation 13.1.1 Thermostat control • Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting temperature <...

  • Page 56: Automatic Operation

    13.4 Automatic Operation • This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature. • During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.

  • Page 57: Protection Control

    Protection Control 14.1 Protection Control For All Operations 14.1.1 Restart Control (Time Delay Safety Control) • The compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. •...
  • Page 58 If the set value exceeds again within 30 seconds after the compressor starts, the operation will restart after 1 minute. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off, timer LED will be blinking (“F99” is indicated). 14.1.4.2 E18JK-1 •...

  • Page 59: Protection Control For Cooling & Soft Dry Operation

    14.1.7 Low Pressure Protection Control (Gas Leakage Detection) (For E12JK-1 only) • Control start conditions For 5 minutes, the compressor continuously operates and outdoor total current is between 0.66A and 1.25A (Cooling), 0.66A and 2.65A (Heating) During Cooling and Soft Dry operation: Indoor suction temperature –...

  • Page 60: Cooling Overload Control

    14.2.2 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 141.8°F. (For E12JK-1 only) The compressor stops if outdoor pipe temperature exceeds 145.4°F. (For E18JK-1 only) If the compressor stops 4 times in 20 minutes, Timer LED blinks (“F95”...
  • Page 61 14.2.6.3 Overload Protection Control • The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below. • If the heat exchanger temperature exceeds 140°F, compressor will stop. 14.2.6.4 Low Temperature Compressor Oil Return Control • In heating operation, if the outdoor temperature falls below 14°F when compressor starts, the compressor frequency will be regulated up to 600 seconds.

  • Page 62: 15. Servicing Mode

    15. Servicing Mode 15.1 Auto Off/On Button AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds.

  • Page 63: Remote Control Button

    Press Auto OFF/ON button to toggle remote control receiving sound. - Short “beep”: Turn OFF remote control receiving sound. - Long “beep”: Turn ON remote control receiving sound. After Auto OFF/ON button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is restarted.

  • Page 64: Troubleshooting Guide

    16. Troubleshooting Guide 16.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no Normal Pressure and Outlet Air Temperature (Standard) electrical problems before inspecting the refrigeration cycle. Gas Pressure Outlet air Temperature Such problems include insufficient insulation, problem with the (kg/cm (°F) power source, malfunction of a compressor and a fan.
  • Page 65 16.1.1 Relationship between the condition of the air conditioner and pressure and electric current • Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

  • Page 66: Breakdown Self Diagnosis Function

    16.2 Breakdown Self Diagnosis Function 16.2.1 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 67: Error Code Table

    16.3 Error Code Table...
  • Page 68 Note: “○” – Frequency measured and fan speed fixed The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard following by pressing the CHECK button at remote control. Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Code Table) by using remote control or Auto OFF/ON button at indoor unit.

  • Page 69: Self-Diagnosis Method

    16.4 Self-diagnosis Method 16.4.1 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 70 16.4.2 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 71 16.4.3 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 72 16.4.4 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 73 16.4.5 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 0.65A) for continuously 20 seconds. Malfunction Caused •...
  • Page 74 16.4.6 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 75 16.4.7 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 76 16.4.8 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 77 16.4.9 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 78 16.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
  • Page 79 16.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection.
  • Page 80 16.4.12 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions • The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused • Wrong models interconnected. • Wrong indoor unit and outdoor unit PCBs used. • Indoor unit or outdoor unit PCB defective.
  • Page 81 16.4.13 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
  • Page 82 16.4.14 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused • Faulty connector connection. •...
  • Page 83 16.4.15 H58 (Patrol Sensor Abnormality) Malfunction Decision Conditions • If Patrol sensor feedback is 0V or 5V continuous for 6 hours. • Error will display only when the Patrol operation is ON. Malfunction Caused • Faulty connector connection. • Faulty Patrol sensor. Troubleshooting...
  • Page 84 16.4.16 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions • The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused • Operation stops due to short circuit inside the fan motor winding. •...
  • Page 85 16.4.17 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 140°F. Malfunction Caused •...
  • Page 86 16.4.18 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Malfunction Decision Conditions • Freeze prevention control takes place (when indoor pipe temperature is lower than 35.6°F) Malfunction Caused • Clogged air filter of the indoor unit • Dust accumulation on the indoor unit heat exchanger •...
  • Page 87 16.4.19 F11 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • When cooling operation, when indoor pipe temperature or indoor heat exchanger temperature sensor is above 113°F. Malfunction Caused • Faulty connector connection. • Faulty indoor pipe temperature sensor. • Faulty indoor main PCB.
  • Page 88 16.4.20 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions • When the different between indoor intake air temperature and indoor pipe temperature is above 50°F or indoor pipe temperature is below 30.2°F Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
  • Page 89 16.4.21 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 90 16.4.22 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 < 39.2°F. Malfunction Caused •...
  • Page 91 16.4.23 F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused • Compressor terminal disconnect • Outdoor PCB malfunction Troubleshooting...
  • Page 92 16.4.24 F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooling, when outdoor unit heat exchanger high temperature data (141.8°F) is detected by the outdoor pipe temperature sensor. Malfunction Caused • Outdoor pipe temperature rise due to short circuit of hot discharge air flow. •...
  • Page 93 16.4.25 F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooling and heating, when IPM temperature data (212°F) 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 94 16.4.26 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature data (233.6°F) 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 95 16.4.27 F98 (Input Over Current Detection) Malfunction Decision Conditions During cooling and heating operation, when an input over-current (16.8A) is detected by checking the input current value being detected by current transformer (CT) with the compressor running. Malfunction Caused • Over-current due to compressor failure.

  • Page 96: Troubleshooting

    16.4.28 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 97: Disassembly And Assembly Instructions

    17. 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. 17.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 17.1.1...
  • Page 98 17.1.1.2 To remove discharge grille...
  • Page 99 17.1.1.3 To remove control board 17.1.1.4 To remove cross flow fan and indoor fan motor...

  • Page 101: Technical Data

    18. Technical Data 18.1 Operation Characteristics 18.1.1 CS-E12JKKW-1 CU-E12JKK-1 • Cooling Characteristic Room temperature: 80.6°F (DBT), 66.2°F (WBT) Operation condition: High fan speed Piping length: 24.6 ft Compressor Frequency : Fc 61.500 61.000 60.500 60.000 59.500 59.000 58.500 58.000 57.500 57.000...
  • Page 102 • Piping Length Characteristic Cooling Room temperature: 80.6°F (DBT), 66.2°F (WBT) Operation condition: High fan speed Outdoor temperature: 95°F (DBT) Compressor Frequency : Fc 58.300 58.200 58.100 58.000 57.900 Piping Length (ft) 3.500 3.450 3.400 3.350 Piping Length (ft) 0.978 0.968 0.959 Piping Length (ft)
  • Page 103 • Heating Characteristic Room temperature: 68°F (DBT) Operation condition: High fan speed Piping length: 24.6 ft Compressor Frequency : Fh 125.000 120.000 115.000 110.000 105.000 100.000 95.000 90.000 85.000 Outdoor Air Temperature (°F) 5.500 5.000 4.500 4.000 3.500 3.000 2.500 2.000 Outdoor Air Temperature (°F) 7.500...
  • Page 104 • Piping Length Characteristic Heating Room temperature: 68°F (DBT) Operation condition: High fan speed Outdoor temperature: 46.94°F (DBT), 42.98°F (WBT) Compressor Frequency : Fh 103.500 103.000 102.500 102.000 101.500 101.000 100.500 Piping Length (ft) 4.450 4.400 4.350 4.300 4.250 4.200 4.150 Piping Length (ft) 0.698...
  • Page 105 18.1.2 CS-E18JKK-1 CU-E18JKK-1 • Cooling Characteristic Room temperature: 80.6°F (DBT), 66.2°F (WBT) Operation condition: High fan speed Piping length: 16.4 ft Compressor Frequency : Fc 61.000 60.500 60.000 59.500 59.000 58.500 58.000 57.500 57.000 56.500 56.000 55.500 Outdoor Air Temperature (°F) 6.000 5.500 5.000...
  • Page 106 • Piping Length Characteristic Cooling Room temperature: 80.6°F (DBT), 66.2°F (WBT) Operation condition: High fan speed Outdoor temperature: 95°F (DBT) Compressor Frequency : Fc 58.900 58.800 58.700 58.600 58.500 58.400 58.300 Piping Length (ft) 5.100 5.050 5.000 4.950 4.900 4.850 4.800 4.750 4.700...
  • Page 107 • Heating Characteristic Room temperature: 68°F (DBT) Operation condition: High fan speed Piping length: 24.6 ft Compressor Frequency : Fh 125.000 120.000 115.000 110.000 105.000 100.000 95.000 90.000 Outdoor Air Temperature (°F) 8.000 7.500 7.000 6.500 6.000 5.500 5.000 4.500 4.000 3.500 3.000...
  • Page 108 • Piping Length Characteristic Heating Room temperature: 68°F(DBT) Operation condition: High fan speed Outdoor temperature: 46.94°F (DBT), 42.98°F (WBT) Compressor Frequency : Fh 102.000 101.500 101.000 100.500 100.000 99.500 99.000 98.500 98.000 97.500 Piping Length (ft 6.000 5.800 5.600 5.400 5.200 5.000 Piping Length (ft)

  • Page 109: Exploded View And Replacement Parts List

    19. Exploded View and Replacement Parts List 19.1 Indoor Unit 19.1.1 CS-E12JKKW-1 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 110 REF. NO. PART NAME & DESCRIPTION QTY. CS-E12JKKW-1 REMARK CHASSY COMPLETE CWD50C1633 FAN MOTOR L6CBYYYL0055 CROSS FLOW FAN COMPLETE CWH02C1076 BEARING ASSY CWH64K007 SCREW - CROSS FLOW FAN CWH551146 EVAPORATOR CO. CWB30C3116 FLARE NUT (LIQUID) CWT251030 FLARE NUT (GAS) CWT251032...
  • Page 111 19.1.2 CS-E18JKK-1 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 112 REF. NO. PART NAME & DESCRIPTION QTY. CS-E18JKK-1 REMARK CHASSY COMPLETE CWD50C1637 FAN MOTOR L6CBYYYL0056 CROSS FLOW FAN COMPLETE CWH02C1077 BEARING ASS’Y CWH64K007 SCREW - CROSS FLOW FAN CWH551146 EVAPORATOR CWB30C3118 FLARE NUT (LIQUID) CWT251030 FLARE NUT (GAS) CWT251032 HOLDER SENSOR CWH32143 CONTROL BOARD CASING CWH102370A...

  • Page 113: Outdoor Unit

    19.2 Outdoor Unit 19.2.1 CU-E12JKK-1 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 REF. NO. PART NAME & DESCRIPTION QTY. CU-E12JKK-1 REMARK CHASSY ASS’Y CWD50K2081A FAN MOTOR BRACKET CWD541030 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR CWA951466 SCREW - FAN MOTOR MOUNT CWH55406J PROPELLER FAN ASS’Y CWH03K1010 NUT - PROPELLER FAN CWH56053J COMPRESSOR 5RS102XBC01 ANTI - VIBRATION BUSHING...
  • Page 115 19.2.2 CU-E18JKK-1 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 116 REF. NO. PART NAME & DESCRIPTION QTY. CU-E18JKK-1 REMARK CHASSY ASS’Y CWD52K1226A ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5CS130XAD04 NUT-COMPRESSOR MOUNT CWH56000J FAN MOTOR BRACKET CWD541126 FAN MOTOR CWA951686 SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH551040J PROPELLER FAN ASSY CWH001019 NUT - PROPELLER FAN CWH561038J...

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