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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
A I R C O N D I T I O N E R
M O D E
A U T O
E C O N A V I
C O M F O R T
O FF/O N
O FF/O N
M O D E
R F P
TEMP
TEMP
POWERFUL/
A IR SW IN G
QUIET
FANSPEED
T I M E R
T I M E R
O N
O N
S E T
S E T
1
1
2
2
3
3
CANCEL
O F F
O F F
AC
RC
SET
CHECK
CHECK
CLOCK
RESET
WARNING
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
CS-XE15SKUA
Order No: PAPAMY1608072AE
Air Conditioner
Outdoor Unit
CU-XE15SKUA
Destination
U.S.A.
Canada
in the Schematic
!
© Panasonic Corporation 2016.
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Summary of Contents for Panasonic CS-XE15SKUA
- Page 1 Do not modify the original design without permission of manufacturer. PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2016.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. Safety Precautions ..........3 14. Servicing Mode ..........47 14.1 Auto OFF/ON Button ........47 2. Specifications ............. 5 14.2 Cooling Only Operation ......48 3. Features ............... 8 14.3 Remote Control Button .......49 4. Location of Controls and Components .... 9 15. -
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 WARNING During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of compressor while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.) After completion of installation or service, confirm there is no leakage or refrigerant gas.
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Page 5: Specifications
2. Specifications Indoor CS-XE15SKUA Model Outdoor CU-XE15SKUA Performance Test Condition Phase, Hz Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. 0.98 4.40 5.57 0.98 4.40 5.57 Capacity BTU/h 3300 15000 19000 3300 15000 19000 kcal/h – – –... - Page 6 Indoor CS-XE15SKUA Model Outdoor CU-XE15SKUA Type Cross-Flow Fan Material ASG33 Motor Type DC / Transistor (8-poles) Input Power 47.0 Output Power Cool Heat Cool Heat Cool 1150 Speed Heat 1200 Cool 1350 Heat 1450 Cool 1380 Heat 1550 Type Propeller Fan...
- Page 7 Indoor CS-XE15SKUA Model Outdoor CU-XE15SKUA Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) Standard length m (ft) 7.5 (24.6) Length range (min – max) m (ft) 3 (9.8) ~ 20 (65.6) I/D & O/D Height different m (ft) 15.0 (49.2)
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Page 8: Features
Features Inverter Technology Wider output power range Energy saving Quick Cooling Quick Heating More precise temperature control Environment Protection Non-ozone depletion substances refrigerant (R410A) Long Installation Piping Long piping up to 65.6ft (20 meters) during single split connection only ... -
Page 9: Location Of Controls And Components
4. Location of Controls and Components Indoor Unit Air purifying filter Front panel Auto OFF/ON button Use when remote control is misplaced or a malfunction occurs. Aluminium fin Horizontal airflow direction louver Remote Control Receiver Do not adjust by hand. Distances: 26ft/8m Human activity sensor... -
Page 10: Dimensions
5. Dimensions Indoor Unit <Top View> <Side View> <Side View> <Front View> 34-9/32 (870) 10-1/16 (255) Air intake direction 1/16-3/32 (1-2) 1/16-3/32 (1-2) Left piping Air outlet Right piping hole direction hole <Bottom View> <Remote Control> 2-5/16 (59) 7/8 (22) AIRCO N DITIO NER M O DE A U T O... -
Page 11: Outdoor Unit
Outdoor Unit <Top View> Space necessary for 34-15/32 (875) 2-25/32 (70) installation 1-3/8 (34.5) 5-3/16 (131) 24-5/32 (613) 5-3/16 (131) 3-15/16 (10 cm) 3-15/16 (10 cm) 43 (100 cm) Anchor Bolt Pitch 14-7/32 (360.5) x 24-5/32 (613) <Side View> <Front View> <Side View>... -
Page 12: Refrigeration Cycle Diagram
6. Refrigeration Cycle Diagram INDOOR OUTDOOR LIQUID EXPANSION SIDE VALVE STRAINER 2-WAY PROCESS PIPE VALVE TUBE TEMP. SENSOR 2 TEMP. HEAT SENSOR EXCHANGER INTAKE (CONDENSER) TEMP. PIPE SENSOR TEMP. SENSOR 1 PIPE TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE 4-WAYS VALVE 3-WAY RECEIVER VALVE... -
Page 13: Block Diagram
7. Block Diagram... -
Page 14: Wiring Connection Diagram
8. Wiring Connection Diagram Indoor Unit... -
Page 15: Outdoor Unit
Outdoor Unit REMARKS BLU : BLUE BLK : BLACK REACTOR SINGLE PHASE WHT : WHITE TO INDOOR UNIT POWER SUPPLY RED : RED (WHT) (RED) (BLK) YEL : YELLOW GRY : GRAY L2-O GRN : GREEN (GRY) (GRY) TERMINAL ELECTRONIC ORG : ORANGE (BLK) (WHT) -
Page 16: Electronic Circuit Diagram
9. Electronic Circuit Diagram Indoor Unit... -
Page 17: Outdoor Unit
Outdoor Unit REACTOR SINGLE PHASE TO INDOOR UNIT POWER SUPPLY (BLK) (WHT) (RED) L2-O TERMINAL (GRY) (GRY) ELECTRONIC (BLK) (WHT) (RED) BOARD CONTROLLER COMMUNICATION COM3 CIRCUIT (RED) FUSE2 FUSE3 (20A. 250V) (T3.15A L250V) SWITCHING AC-BLK NOISE FILTER POWER RECTIFICATION (BLK) SUPPLY CIRCUIT CIRCUIT... -
Page 18: Printed Circuit Board
10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board AC303 CN-FM CN-TH CN-STM2 CN-STM1 CN-MSENS CN-RCV CN-STM3 CN-RMT CN-DISP CN-STM4 CN-CNT CN-CLN JP1 (Random Auto Restart enable/disable) 10.1.2 Indicator Printed Circuit Board LED301 LED302 LED304 LED305 LED307 LED306 CN-DISP LED303... - Page 19 10.1.3 Receiver Printed Circuit Board CN-RCV 10.1.4 Comparator Printed Circuit Board CN-MSSTM CN-SENS CN-STM 10.1.5 Human Activity Sensor Printed Circuit Board CN-SENS...
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Page 20: Outdoor Unit
10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board POWER TRANSISTOR (IPM) CURRENT TRANSFORMER (CT) CN-HOT CN-HT1 CN-DCFM COM3 CN-HT2 CN-TANK CN-EV CN-TH1 AC-BLK FG01 AC-WHT 10.2.2 Heater Printed Circuit Board CN-HT1 CN-HT2... -
Page 21: Installation Instruction
11. Installation Instruction 11.1 Select the Best Location 11.1.3 Indoor/Outdoor Unit Installation Diagram 11.1.1 Indoor Unit Do not install the unit in excessive oil fume area Piping direction Do not bend up (Front side) drain hose such as kitchen, workshop and etc. Right ... -
Page 22: Indoor Unit
11.2 Indoor Unit The mounting wall shall be strong and solid enough to prevent it from vibration. Wall Wall Wall More than 1 More than 1 More 2 screw than 2 " (128 mm) DISTANCE TO PIPE HOLE CENTER 128 mm "... - Page 23 11.2.2 Indoor Unit Installation Use shock absorber Do not turn over the unit during pulling out without it’s shock absorber the piping to protect during pulling out the piping. the intake grille from It may cause intake grille damage. damage. Piping Piping Shock absorber...
- Page 24 Replace the drain hose Rear view for left piping installation Connection cable Piping Drain hose More than 45 " (1150 mm) Connection cable Drain hose Drain hose Drain cap Sleeve for piping hole Adjust the piping slightly downwards. • • How to insert the connection cable How to pull the piping and drain hose out, in case and drain hose in the case of left...
- Page 25 11.2.3 Connect the Cable to the Indoor Unit The inside and outside connection cable can be connected without removing the front grille. Conduit Unscrew the conduit cover and fix the conduit Connector Conduit Cover connector to conduit cover with lock nut, then Lock Nut secure it against chassis.
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Page 26: Outdoor Unit
11.3 Outdoor Unit 11.3.1 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 with a bolt nut ø13/32" (ø10 mm). When installing at roof, please consider strong wind and earthquake. - Page 27 11.3.3 Evacuation of the Equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. Liquid side Indoor unit Two-way valve Outdoor unit Close Gas side Three-way valve Close Vacuum pump Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way...
- Page 28 Outdoor Unit Indoor Unit 208/230V min AWG16 208/230V min AWG16 208/230V min AWG16 Grounding wire min AWG16 Disconnect Switch Field supply Power Supply Single Phase 208/230V 60Hz min AWG14 Grounding wire Secure the wire onto the control board with the holder (clamper). Terminal Board 10 After completing wiring connections, reattach...
- Page 29 11.3.6 Disposal of Outdoor Unit Drain Water The unit should be mounted on a stand that suits to a local environmental requirement. When the Drain elbow being used, please ensure to:- Provide a minimum clearance of 2" (50mm) to access the bottom of base pan. Seal the four 25/32"...
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Page 30: Operation Control
12. Operation Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. -
Page 31: Indoor Fan Motor Operation
12.1.5 Automatic Operation This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature. During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature. -
Page 32: Outdoor Fan Motor Operation
ii. Auto Fan Speed [Cooling, Dry] According to room temperature and setting temperature, indoor fan speed is determined automatically. When set temperature is not achieved, the indoor fan will operate according to pattern below. [1 pattern : 10 s] Speed Higher Medium... -
Page 33: Airflow Direction
OD Pipe Temperature 78.8°F (26°C) 91.4°F (33°C) During above condition, when indoor heat exchanger temperature is below 41°F (5°C), the outdoor fan will stop according to outdoor piping temperature as following: Outdoor fan ON 86°F (30°C) Outdoor fan OFF OD Pipe Temp. -
Page 34: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)
12.4.2 Horizontal Airflow 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 35: Powerful Mode Operation
Quiet operation stop condition When one of the following conditions is satisfied, quiet operation stops: POWERFUL/QUIET button is pressed again. Stop by OFF/ON switch. Timer “off” activates. AUTO COMFORT button is pressed. ECONAVI button is pressed. ... -
Page 36: Indication Panel
12.10 Indication Panel POWER TIMER POWERFUL/QUIET ECONAVI AUTO COMFORT Color Green Orange Orange Green Green Green POWERFUL/QUIET AUTO COMFORT Light ON Operation ON Timer Setting ON RFP ON ECONAVI ON Mode ON POWERFUL/QUIET AUTO COMFORT Light OFF Operation OFF Timer Setting OFF RFP OFF ECONAVI OFF Mode OFF... - Page 37 12.12.1 Human Activity Sensor Area of human availability, activity level and absent is judged based on pulses by using infrared sensor. The internal setting temperature shift, fan speed and horizontal airflow direction are adjusted in order to provide comfort environment while maintain the energy saving level. ...
- Page 38 12.12.1.4 Determination of Presence or Absence Human presence status shall be determined based on the human presence status of each area. When all area has been detected absent for more than 40 minutes then it will judge as absence. 12.12.1.5 Setting Temperature and Fan Speed Shift ECONAVI ;...
- Page 39 12.12.1.7 Human Activity Sensor Abnormality Abnormality detection: Connector disconnection / Wire cut abnormality o Sensor judge Hi level continuously for 25 seconds Circuit abnormality o 70 seconds after power ON, if human activity sensor judge Lo level continuously for 25 seconds ...
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Page 40: Electric Heater Control 1
12.13 Electric Heater Control 1 Starting condition When all condition (1+2+3+4+5+6+7) are fulfilled. Operation ON Indoor Heating mode Thermostat ON Temperature different control °F (°C) Temp difference (Remote controller setting - When air conditioning is Intake air temperature) switched ON Heater ON... -
Page 41: Electric Heater Control 2
12.14 Electric Heater Control 2 During Error happened, air conditioning unit will stop operation, TIMER LED will blink and indoor vane closed. Electric heater can be switch ON when fullfill the starting condition as follow except 2 errors. H14 (Indoor intake air temperature sensor abnormality) H19 (Indoor fan motor mechanism lock) ... -
Page 42: Protection Control
13. Protection Control 13.1 Protection Control For All Operations 13.1.1 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 43 13.1.4 Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. If compressor discharge temperature exceeds 224.6°F (107°C), compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.
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Page 44: Protection Control For Cooling & Soft Dry Operation
13.2 Protection Control For Cooling & Soft Dry Operation 13.2.1 Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. This control will begin 1 minute after the compressor starts. ... -
Page 45: Protection Control For Heating Operation
13.2.5 Dew Prevention Control 1 To prevent dew formation at indoor unit discharge area. This control will be activated if: Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. When Cooling or Dry mode is operated more than 20 minutes or more. ... - Page 46 13.3.5 Cold Draught Prevention Control When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced. 13.3.6 Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks.
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Page 47: Servicing Mode
14. Servicing Mode 14.1 Auto OFF/ON Button Auto OFF/ON Auto OFF/ON Auto OFF/ON Auto OFF/ON Button pressed Button pressed Button pressed Button pressed 5 sec 5 sec 5 sec Auto Operation Test Run Operation Stop Normal Cooling Operation Stop Test Run Operation Stop (Forced cooling operation) (Forced heating operation) -
Page 48: Cooling Only Operation
REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”... -
Page 49: Remote Control Button
14.3 Remote Control Button 14.3.1 SET Button To check remote control transmission code and store the transmission code to EEPROM: Press “Set” button by using pointer. Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code changed. ... -
Page 50: Troubleshooting Guide
15. Troubleshooting Guide 15.1 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 (°C) power source, malfunction of a compressor and a fan. - Page 51 15.1.1 Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the Electric current Electric current air conditioner Low Pressure High Pressure Low Pressure High Pressure during operation during operation Insufficient refrigerant ...
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Page 52: Breakdown Self Diagnosis Function
15.2 Breakdown Self Diagnosis Function 15.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code) When the latest abnormality code on the main Once abnormality has occurred during operation, unit and code transmitted from the remote the unit will stop its operation, and Timer LED controller are matched, power LED will light blinks. -
Page 53: Error Codes Table
15.3 Error Codes Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation No memory of failure — Normal operation — — Indoor fan only Indoor/outdoor wire terminal Indoor/outdoor operation can Indoor/outdoor After operation for ... - Page 54 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation Check indoor heat exchanger Indoor high pressure Indoor high pressure Air filter dirty — — protection protection (Heating) Air circulation short circuit Check indoor heat exchanger Indoor operating unit Indoor freeze protection ...
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Page 55: Self-Diagnosis Method
15.4 Self-diagnosis Method 15.4.1 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 56 15.4.2 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 57 15.4.3 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 58 15.4.4 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 59 15.4.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused Lack of gas Broken CT (current transformer) ...
- Page 60 15.4.6 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 61 15.4.7 H23 / H24 (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 62 15.4.8 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 63 15.4.9 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 64 15.4.10 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 65 15.4.11 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 66 15.4.12 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 67 15.4.13 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 68 15.4.14 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 69 15.4.15 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 70 15.4.16 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
- Page 71 15.4.17 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions Freeze prevention control takes place (when indoor pipe temperature is lower than 35.6°F (2°C)) Malfunction Caused ...
- Page 72 15.4.18 F11 (4-way Valve Switching Failure) Malfunction Decision Conditions When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused ...
- Page 73 15.4.19 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 (10°C) or indoor pipe temperature is below 30.2°F (-1.0°C). 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 74 15.4.20 F90 (Power Factor Correction Protection) Malfunction Decision Conditions To maintain DC voltage level supply to power transistor. To detect high DC voltage level after rectification. Malfunction Caused During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
- Page 75 15.4.21 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused Lack of gas. 3-way valve close. Troubleshooting When F91 indication happens. For safety reason and to prevent component breakdown, always switch Caution...
- Page 76 15.4.22 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 Faulty Outdoor PCB Faulty compressor Troubleshooting When F93 indication happens.
- Page 77 15.4.23 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
- Page 78 15.4.24 F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooling and heating, when IPM temperature data 212°F (100°C) is detected by the IPM temperature sensor. Multi Models only Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data 194°F (90°C) is detected by the heat sink temperature sensor.
- Page 79 15.4.25 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature data 233.6°F (112°C) is detected by the compressor tank temperature sensor. Malfunction Caused Faulty compressor tank temperature sensor 2/3 way valve closed ...
- Page 80 15.4.26 F98 (Input Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.
- Page 81 15.4.27 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused DC current peak due to compressor failure. ...
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Page 82: Disassembly And Assembly Instructions
16. 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. 16.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 16.1.1... - Page 83 Pull out the 10. Detach 8 connectors as labeled from the electronic controller. electronic Then pull out electronic controller gently. controller halfway. AC303 Remove screw to remove terminal CN-FM board complete. CN-TH Detach the connectors CN2 (Black), CN-STM2 GND (Green), and CN1 (White) CN-STM1 then remove the...
- Page 84 16.1.5 To remove cross flow fan and indoor fan motor 15. Remove the screw that holding the cross flow fan and fan motor axis. Figure 7 17. Remove the bearing by pulling it out gently. 16. Remove the screw from the evaporator.
- Page 85 Cross Flow Fan Reminder: To reinstall the cross flow fan, ensure cross flow fan is in line as shown in figure 10. Figure 10...
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Page 86: Outdoor Electronic Controller Removal Procedure
16.2 Outdoor Electronic Controller Removal Procedure Remove the 4 screws of the Top Panel. Remove the Control Board. Screws Release the Hooks Top Panel Control Board Release 6 terminal Screws connectors Release 6 connectors Fig.4 Remove the 8 screws of the Electronic Controller. -
Page 87: Technical Data
17.1 Cool Mode Performance Data Unit setting: Standard piping length, Hi Fan, Cool mode at 16°C (60.8°F) Voltage: 208V/230V 17.1.1 CS-XE15SKUA CU-XE15SKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F) -
Page 88: Heat Mode Performance Data
17.2 Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 30°C (86°F) Voltage: 208V/230V 17.2.1 CS-XE15SKUA CU-XE15SKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F) -
Page 89: Service Data
18. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 18.1 Cool Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature: 26.7°C (80°F) Dry Bulb/19.4°C (67°F) Wet Bulb ... -
Page 90: Heat Mode Outdoor Air Temperature Characteristic
18.2 Heat Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature: 20°C (68°F) Dry Bulb/ -°C Wet Bulb Unit setting: Standard piping length, forced heating at 30°C (86°F), Hi fan Compressor frequency: Rated for Heating operation Piping Length: 7.5 m (24.6 ft) ... -
Page 91: Piping Length Correction Factor
18.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 18.3.1 Cooling Capacity 1.03 1.01 0.99 0.97 0.95 (6.5) (9.8) (13.1) (16.4) (19.6) (22.9) (26.2) (29.5) (32.8) (36.0) (39.3) (42.6) (45.9) (49.2) (52.4) -
Page 92: Exploded View And Replacement Parts List
19. Exploded View and Replacement Parts List 19.1 Indoor Unit CWH55025J CWH55051AJ 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 93 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-XE15SKUA REMARK CHASSIS COMPLETE CWD50C1832 FAN MOTOR ARW7715AC CROSS - FLOW FAN COMPLETE CWH02C1137 BEARING ASSY CWH64K1010 SCREW – CROSS - FLOW FAN CWH551146 EVAPORATOR ACXB30C02330 FLARE NUT (LIQUID) CWT251030 FLARE NUT (GAS)
- Page 94 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-XE15SKUA REMARK ELECTRONIC CONTROLLER CWA746917 ELECTRONIC CONTROLLER CWA747279 (NOTE) All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). “O” marked parts are recommended to be kept in stock.
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Page 95: Outdoor Unit
19.2 Outdoor Unit 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 96 CONTROL BOARD COVER - COMPLETE CWH13C1308 CONTROL BOARD COVER CWH131409 SOUND PROOF MATERIAL CWG302632 SOUND PROOF MATERIAL (TOP) CWG302630 SOUND PROOF MATERIAL CWG302636 DISCHARGE MUFFLER (4-WAYS VALVE) CWB121047 PANASONIC BADGE CWE373439 INVERTER BADGE CWE373441 STRAINER CWB111076 HEATER CWA341072 BAG - COMPLETE ACXH82C00350 (NOTE) ...