Page 1 November 27, 2014 SERVICE MANUAL SERVICE MANUAL INVERTER DRIVEN MULTI-INDOOR UNIT CLIMATE CONTROL SYSTEM Alternative refrigerant R410A use models (OUTDOOR UNIT) KX6 series (Heat pump type) FDC224KXE6, 280KXE6, 335KXE6 (INDOOR UNIT) -KX6 series- FDT28KXE6A FDTC22KXE6A FDTW28KXE6 FDTS45KXE6 FDTQ22KXE6 FDU71KXE6 36KXE6A...
Page 2 CONTENTS 1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ..... 1 1.1 Wired remote controller (Option parts) ............1 1.2 Operation control function by the indoor controller ........2 1.3 Operation control function by the remote controller ........8 1.4 Operation control function by the outdoor controller ......... 9 2 SYSTEM TROUBLESHOOTING PROCEDURE ..........
Page 3 1. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1.1 Wired remote controller (Option parts) The figure below shows the remote controller with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation. Characters displayed with dots in the liquid crystal display area are abbreviated.
Page 4 1.2 Operation control function by the indoor controller Operations of functional items during cooling/heating Cooling Heating Operation Dehumidify Thermostat Thermostat Thermostat Thermostat Hot start (Defrost) Functional item Compressor � � � � � � �/� 4-way valve � � � �...
Page 5 Remote controller display during the operation stop “Centralized control ON” is displayed always on the LCD under the “Center/Remote” and “Center” modes during the operation stop (Power ON). This is not displayed under the “Remote” mode. (b) If this display is not shown under the “Center/Remote” mode, check if the indoor unit power switch is turned on or not. Hot start (Prevention of cold draft during heating) At the startup of heating operation, at resetting the thermostat, during defrosting operation and at returning to heating, the indoor fan is controlled by the indoor heat exchanger temperature (detected with Th...
Page 6 Filter sign As the operation time (when ON/OFF switch is at ON) accumulates to 180 hours (1), “Filter cleaning” is displayed on the remote controller. (This is also displayed when the unit is in trouble and under the centralized control, regardless of ON/OFF) Note (1) Time setting for the filter sign can be made as shown below using the indoor function of wired remote controller “Filter sign setting”.
Page 7 (11) Drain motor (DM) control [Applicable type: FDT, FDTC, FDTW, FDTS, FDTQ, FDUM, FDQS and FDU90～140] Drain motor (DM) start operation at the same time when compressor ON at cooling and dehumidifying mode and keeps operating for 5 minutes after operation stop, the anomalous stop, thermostat OFF and switching from cooling or dehumidifying operation to fan or heating operation.
Page 8 (14) Anomalous fan motor (FDT and FDK only) Fan motor will be stopped with displaying “E16”, if it has detected the revolutions of 200 rpm or less continuously for 30 seconds at a rate of 4 times within 60 minutes, after starting the motor. (15) High ceiling control [Applicable type: FDT, FDTC, FDTW, FDTS and FDE] When the indoor unit is installed at a high ceiling, the airflow volume mode control can be changed with the indoor function of wired remote controller “High ceiling setting”.
Page 9 • Heating output: Outputs DC12V relay drive signal during heating operation. • Compressor ON output: Outputs DC12V relay drive signal when the compressor is operating. • Error output: When any anomalous condition occurs, it outputs DC12V relay drive signal. (b) Remote operation input Remote operation inputs (switch input, timer input) connectors (CnT) are provided on the indoor control PCB.
Page 10 1.3 Operation control function by the remote controller Switching sequence of the operation mode switches of remote controller Dehumidifying Cooling Heating [CPU reset] When the “CHECK” and “GRILL” buttons on the remote controller are pressed at the same time, this function is activated. This function is same as power supply reset.
Page 11 1.4 Operation control function by the outdoor controller (A) Normal control Operation of major functional components under each operation mode Heating Operation mode Cooling/Dehumidifying Thermostat Thermostat Thermostat Thermostat Defrost Fonctional item 〇 × × 〇 × 〇 Compressor (CM) 〇〇...
Page 12 (2) 　 Compressor pre-start control (a)　Remote controller full stop → Operation (i) 　 Start conditions • When it has changed to the compressor operation frequency command > 0 Hz from the state of compressor stopping. (ii) 　 Control contents • It sets the compressor operation frequency command = 0 Hz, and then after this control ends, It starts the compressor.
Page 13 (b)　Cooling → Heating (i) 　 Start conditions • When the outdoor unit operation mode is changed from the cooling operation to heating operation (ii) 　 Control contents When the compressor is operating, it makes the compressor stopped. Each functional component operates according to the sequence shown below. (iii) 　...
Page 14 (c)　Heating → Cooling (i) 　 Start conditions • When the outdoor unit operation mode is changed from the heating operation to cooling operation (ii) 　 Control contents When the compressor is operating, it makes the compressor stopped. Each functional component operates according to the sequence shown below. (iii) 　...
Page 15 (ii) 　 The target compressor speed is shown in following table. 4-way valve switching safeguard/Target compressor speed Item Model Frequency (Fk) Speed (rps) FDC224KXE6 FDC280KXE6 FDC335KXE6 (b)　Compressor protection start After the 4-way valve switching safeguard, the compressor is controlled with the following compressor protection start. ➀ Compressor protection start, normal ➁...
Page 16 < End conditions > When either one of following conditions is established a) 　 When the frequency upper limit increase by this control continued for 15 minutes in total When the inverter has stopped within 15 minutes after the start and is started again, it starts with the normal protection start and increases the frequency upper limit at a rate of 5 Hz/minute till the frequency increase continues for 15 minutes in total.
Page 17 800 (780) 800 (780) Note (1) Figures in the parentheses in the above table are applicable to FDC224KXE6. (b)　Fan control during cooling During cooling and dehumidifying, fan speed is controlled in accordance with the high pressure (sensed by PSH) and the outdoor air temperature (sensed by Tho-A).
Page 18 (c)　Outdoor fan cooling control at low outdoor air temperature. (i) 　 Start conditions This control is performed when all of following conditions is established. ➀ When the ordinary outdoor fan control is performed ➁ Outdoor air temperature ≦ 10ºC (It is reset with the hysteresis of the outdoor air temperature > 15ºC.) Valid Invalid Outdoor air temperature...
Page 19 (5) 　 Defrost control (a)　Temperature condition of defrosting 1) 　 S tart conditions (Standard specification or cold region specification can be selected by switching the jumper wire J15.) Defrost operation will start, when outdoor unit whose compressor is operating under heating mode has satisfied all the following conditions.
Page 20 (6)　Protective control (a)　Discharge pipe temperature (Td) control Discharge pipe temperature sensor (Tho-D1) monitors the discharge pipe temperature (Td) to avoid the rise of discharge pipe temperature. 1)　Compressor capacity control (i) 　 Start conditions When all of following conditions are satisfied ➀...
Page 21 (B) Optional controls • Functions of outdoor PCB connector CNS1, CNS2, CNG1, CNG2 and CNZ1 ① CNS1 connector : By changing the allocation of external input functions [P07- X ] on the 7-segment, following functions can be selected. Function No. X CNS1 short circuited CNS1 open “0”...
Page 22 External input and demand input (a) Operation permission and prohibition modes (Note) With 7-segment display [P07]-[0] (CnS2:[P08]-[0], CnG1:[P09]-[0] and CnG2[P10]-[0] can be used as well.) Operation permission or operation prohibition mode is switched with the connector (CnS1) and the jumper wire (J13) on the outdoor PCB.
Page 23 Operation/ stop control by the demand input CnS1 of outdoor unit CnS1: Switching of demand control/ Input: CnS1 Switching with J13 normal operation Short-circuit Demand control Short-circuit (Level input)  Normal operation Switching of normal operation/ Open (Pulse input) Open demand control (Reversal) Short-circuit Normal operation...
Page 24 (c) 2-step demand control ) Start condition If all the following conditions are satisfied. a) 7-segment display [P0] is set 0%, 0%, 60% or 80% (except OFF). b) Demand control is in operation. c) External input connector of outdoor unit for "-step demand control" is valid. Ex.
Page 25 (2)　Silent mode control (a)　Start conditions When all of the following conditions is established (i) 　 At the start of silent mode initiated by the indoor unit or when the silent mode input is made effective (short-circuited) at the external input terminal (Factory default: CnG2) on the outdoor unit (ii) 　...
Page 26 (3) Outdoor fan snow protection control (a) This control is enabled/disabled by entering data into 7-segment display. (b) Setting method of outdoor fan control [Starting conditions] When following conditions are established for 10 minutes continuously. Snow protection control setting is valid ([P02]-1) and outdoor air temperature < 3°C or external input of outdoor fan snow protection control ON. ([P07]-5 and CnS1 is shorted) Set the Code No.
Page 27 (5) Energy saving mode control This control is effective, when [P04] of 7-segment display is set 000, 040, 060, 080 (except OFF) (a) Control contents Compressor upper limit speed is changed according to the setting ratio. (ii) Compressor upper limit speed is obtained by multiplying the rating speed (at cooling/heating) with the setting ratio as follows.
Page 28 However, when the operation start conditions have been established during the 3-minute delay control of compressor, the compressor starts after completing the 3-minute delay control. Item Target compressor speed at pump down operation Model FDC224KXE6 50HZ FDC280KXE6 62HZ FDC335KXE6 52HZ (ii) As the start conditions are established, both red LED and green LED on the outdoor PCB flash continuously.
Page 29 (C) Data output (1) 7-segment and operation data retention (a) 7-segment display Operation information is displayed for checking various operation data during test run and for helping malfunction diagnosis at servicing. Input data to microcomputer, contents of outdoor unit control, indoor unit registration information, or other, are mainly displayed on the 7-segment LED. Operation information display Displays each item at 7-segment of 3-digit ×...
Page 30 (iii) Precedence of display [Exx] > [Related to check operation ([CHJ] > [CHU])] > [PdE] > [PdS]> [oPx] > [Cxx] ➀ If resetting from the display of ➀ , it is switched to [C00]. ➁ If SW8 or SW9 is pressed during the display of ➀ , it changes to [C00]. ➂...
Page 31 (b) List of 7-segment displays Code Contents of display Data display range Minimum unit Remarks Error [Exx] display Caution display [oPx] Special display [PdS][PdE] Code Contents of data display Data display range Minimum unit Remarks <Sensor value, actuator information> CM1 operation frequency 0 ~ 130 (Spare) Tho-A Outdoor air temperature L,-20 ~ 43...
Page 32 Code Minimum Contents of data display Data display range Remarks unit Order of 100: CNG2 C32 External input – Order of 10: (Spare) (0: Close, 1: Open) Order of 1: (Spare) Order of 100: 52C-1 C33 Relay output – Order of 10: 20S (0: Close, 1: Open) Order of 1: Crankcase heater 1 Order of 100: SV6...
Page 33 Code Minimum Contents of data display Data display range Remarks unit <Anomalous counter information> C70 Counter · Sensor wire disconnected 0 ~ 3 C71 Counter · High pressure protection 0 ~ 5 Counter · Anomalous low pressure ➂ (During 0 ~ 5 operation) C73 Counter ·...
Page 34 Code Minimum Contents of data display Data display range Remarks unit <User setting> P00 (Spare) – – – – – 0: First push priority (at shipping) P01 Operation priority selection – 1: Last push priorit Outdoor unit fan snow protection 0: Control disabled (at shipping) –...
Page 35 Code Min. Data display contents Data display range Remarks unit <Service engineer setting> – – – – – – – P16 (Spare) – – – – – – – P17 (Spare) – – – – – – – P18 (Spare) 0: Control for ensuring certain indoor outlet air temperature Preferencial switch to ensure 0 : (Factory default)
Page 36 (c) Saving of Operation Data Mainly for investigating the causes of market claims, operation data are always saved in memory. If any trouble occurs, the data writing is stopped and only the operation data prior to the time when the trouble occurs are recorded. These data can be loaded to a PC via RS232C connector of PCB and utilized for identifying causes.
Page 37 Code Record data Number of Unit of write Write contents Contents Data write range bytes 00: No error on outdoor unit Error code 00 ~ 99 – 01-99: All errors 00 – 3F: Outdoor Error existing unit address 00 ~ FF –...
Page 38 Code Record data Unit of Number of Write contents Contents Data write range write bytes FMo1 Fan speed command 0 ~ 65535 10min-1 FMo2 Fan speed command 0 ~ 65535 10min-1 EEVH1 opening degree 0 ~ 65535 1 pulse EEVSC opening degree 0 ~ 65535 1 pulse Compressor target cooling low...
Page 39 Code Record data Unit of Number of Write contents Contents Data write range write bytes Dip SW [SW6] – – Bit0 SW6-1 0 : OFF, 1 : ON Bit1 SW6-2 0 : OFF, 1 : ON Bit2 SW6-3 0 : OFF, 1 : ON Bit3 SW6-4 0 : OFF, 1 : ON...
Page 40 Code Record data Unit of Number of Write contents Contents Data write range write bytes <Error counter information> Control status HP (63H1) anomaly counter 0 ~ 5 Control status LP anomaly counter while 0 ~ 5 running Control status LP anomaly counter while 0 ~ 5 stopping 75 Control status Td1 error counter...
Page 41 Code Record data Unit of Number Write contents Contents Data write range write of bytes Heating setting 2 (Target high 0.05 3.15 ~2.75 pressure) [ MPa ] Heating setting 3 (Judgment 30 ~ 38 1 [ °C ] temperature) <Other> Override number –...
Page 42 (2) Outdoor PCB setting Code Input Remarks Outdoor address No. (Order of 10) Outdoor address No. (Order of 1) Normal ★ /Reseet SW3-1 Inspection LED reset None ★ /With SW3-2 Automatic backup operation Normal ★ /Forced heating-cooling SW3-7 Forced heating/cooling Normal ★ /Test SW3-8 Test mode Normal ★...
Page 43 SYSTEM TROUBLESHOOTING PROCEDURE 2.1 Basics of troubleshooting Basic troubleshooting is to check/analyze/save data by connecting the Mente PC. Whenever arriving at the site, always connect the Mente PC before starting work. Method of error data analysis (Basic procedure) • Identify whether particular error occurred during operation or stopping. •...
Page 44 2.2 Explanation of troubleshooting (a) Checking 15V on the control PCB (Step to check if the inverter PCB fails or not) Use this to diagnose E41, E42, E45 and E48. Fan motor check Power OFF (Power supply circuit breaker OFF) *Be sure to check both fan motor 1 and 2 Be sure to wait for 3 minutes after turning the Even if DC15V is detected, affection by fan motor anomaly is...
Page 45 2.3 Contents of troubleshooting (a) List of inspection displays Indoor and outdoor units Remote 7-segment controller Name of inspection Classification Page display error code – Remote controller communication error Communication error – Duplicated indoor unit address Address setting error Address pairing setting error – Outdoor unit signal line error –...
Page 46 (b) Troubleshooting Green Content Error code Keeps flashing Stays Off None Indoor Operates but does not cool Remote controller: 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor fan operation Check the temperature difference between return and suction air of indoor unit It is normal...
Page 47 Green Error code Content Keeps flashing Stays Off None Indoor Operates but does not heat Remote controller: 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor fan operation Check the temperature difference between return and suction air of indoor unit It is normal (This unit is designed...
Page 48 Green Content Error code Stays Off Stays Off None Indoor Earth leakage breaker activated Remote controller: 7-segment display: Stays Off Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Are the insulation resistance Replace compressor. * and and coil resistance of compressor OK? 2.
Page 49 Green Content Error code – – None Indoor Excessive noise/vibration (1/3) Remote controller: 7-segment display: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure If excessive noise/vibration persists when sufficient time has elapsed after Does noise/ vibration occur during stopping the unit, it is or soon after stopping considered that the air-...
Page 50 Green Content Error code – – None Indoor Excessive noise/vibration (2/3) Remote controller: 7-segment display: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From 1/3 Rearrange the piping to Are the pipes avoid contact with the contacting with the casing.
Page 51 Green Content Error code – – None Indoor Excessive noise/vibration (3/3) Remote controller: 7-segment display: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From 2/3 If insufficient cooling/ [Adjustment heating problem happens during commissioning] due to anomalous operating Does noise/vibration occur when the conditions at cooling cooling/heating operation is...
Page 52 Green Content Error code Keeps flashing Stays Off None Indoor Louver motor anomaly Remote controller: 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure ▲Check at the indoor unit side. Operate after waiting for more than 1 minute. Does the louver operate when power on?
Page 53 Green Power supply system anomaly Content Error code Stays Off Stays Off None Indoor Remote controller: (Power supply to indoor unit PCB) 7-segment display: Stays Off 2 times flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure AC 220-240V/220V detected between L-N on the indoor terminal block?
Page 54 Green Content Error code Power supply system error Stays Off Keeps lighting None Indoor Remote controller: (Power supply to remote controller) 7-segment display: Stays Off Keeps lighting Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Isn't there any Correct it.
Page 55 Green Content Error code Indoor Keeps flashing Stays Off Remote controller: WAIT WAIT 7-segment display: Outdoor Keeps flashing Keeps flashing 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case that is kept WAIT on displaying on the remote controller for more than 2 is kept on WAIT...
Page 56 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case of fuse blown, how to check the unit before replacement of fuse) Isn't there any short circuit...
Page 57 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (No display on the remote controller after power ON) No display on the remote controller after power ON Does indoor green LED keep...
Page 58 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case that is kept WAIT on displaying on the remote controller for more than 2 is kept on WAIT...
Page 59 Green Content Error code Stays OFF Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Stays OFF Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case that LED on outdoor control PCB stays OFF) In case that LED on outdoor control PCB stays Once turn OFF the breaker and turn ON it again at 3...
Page 60 Green Content Error code Stays Off Stays Off Indoor Remote controller: WAIT WAIT 7-segment display: Stays Off Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case of fuse blown, how to check the unit before replacement of fuse) Isn't there any short circuit...
Page 61 Green Content Error code Stays OFF Stays Off 〔 No display 〕 Indoor Remote controller: [No display] 7-segment display: Stays OFF Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (No display on the remote controller after power ON) No display on the remote controller after power ON Is DC10V...
Page 62 Green Content Error code Remote controller Keeps flashing Stays Off Indoor Remote controller: communication error 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is it possible to Malfunction by temporary reset normally by the power noise.
Page 63 Green Content Error code Keeps flashing Keeps flashing Indoor Duplicated indoor unit address Remote controller: 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the number of Review number of connected indoor units up connected units.
Page 64 Green Content Error code Keeps flashing 2 times flash E3/5 Indoor Outdoor unit signal line error Remote controller: 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure E3 is a communication error that occurs when communication between indoor and outdoor units is not established at all.
Page 65 Green Content Error code Keeps flashing *See below Indoor Communication error during operation Remote controller: 7-segment display: Keeps flashing 2 time flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure * In case that indoor red LED flashes 2 times Note (1) Check the connection (disconnection, looseness) of signal wires at outdoor terminal block Is the...
Page 66 Green Indoor heat exchanger Content Error code Keeps flashing 1 time flash Indoor Remote controller: temperature thermistor anomaly (Thi-R) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Insert the connector the connector of thermistor connected securely properly ?
Page 67 Green Indoor return air Content Error code Keeps flashing 1 time flash Indoor Remote controller: temperature thermistor anomaly (Thi-A) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure the connector of Insert the connector thermistor connected securely properly ?
Page 68 Green Content Error code Keeps flashing 1 time flash Indoor Drain trouble Remote controller: 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model FDT, FDTC, FDTW, FDTQ, Diagnosis Countermeasure FDTS, FDR, FDU, FDUM, and FDQS series Check the error data in the remote controller. Is there any overflow? Is DC 12V detected at CN1...
Page 69 Green Content Error code Excessive number of indoor units (moe than 17 units) Keeps flashing Stays Off Indoor Remote controller: by controlling one remoto controller 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Aren't more than 17 indoor units...
Page 70 Green Content Error code Address setting error Keeps flashing Keeps flashing Indoor Remote controller: by mixed setting method 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Isn't the automatic setting and manual setting mixed in the address Review address setting.
Page 71 Green Content Error code Indoor fan motor anomaly Keeps flashing 1 time flash Indoor Remote controller: (FDT series) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model FDT series only Diagnosis Countermeasure Does any foreign matter intervene Remove foreign matter.
Page 72 Green Content Error code Indoor fan motor anomaly Keeps flashing 1 time flash Indoor Remote controller: (FDK series) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model FDK series only Diagnosis Countermeasure Does any foreign matter intervene Remove foreign matter.
Page 73 Green Content Error code Indoor unit operation check, Keeps flashing 1 time flash Indoor Remote controller: drain motor check mode anomaly 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure E19 occurs when the power ON Is SW7-1 Indoor control PCB...
Page 74 Green Content Error code Remote controller Keeps flashing Stays Off Indoor Remote controller: temperature thermistor anomaly (Thc) 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure the connector of Insert the connector thermistor connected securely properly ? Regarding the characteristics of the thermistor,...
Page 75 Green Content Error code Unmatch connection of Keeps flashing Stays Off Indoor Remote controller: indoor and outdoor unit 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Is the wiring connection between Correct the wiring indoor and outdoor units correctly?
Page 76 Green Content Error code Keeps flashing Stays Off Indoor Duplicated outdoor unit address No. Remote controller: 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition. Check the conditions whether it occurs immediately after the power...
Page 77 Green Content Error code Open L3 Phase on Keeps flashing Stays Off Indoor Remote controller: power supply at primary side 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
Page 78 Green Discharge pipe temperature Content Error code Keeps flashing Stays Off Indoor Remote controller: error (Tho-D1) E36-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check the ROM version...
Page 79 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Liqiud flooding anomaly E36-3 7-segment display: Keeps flashing 3 times flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor units Diagnosis Countermeasure Check and save the data of Save data for 30 minutes before stopping in Mente PC operating condition Check the ROM version Are there...
Page 80 Outdoor heat exchanger Green Content Error code temperature termistor (Tho-R) and subcooling coil Keeps flashing Stays Off Indoor Remote controller: temperature thermistor (Tho-SC,-H) anomaly E37-1, 2, 5, 6*1 7-segment display: Keeps flashing Outdoor *1 E37-1: one time flash (Tho-R1), E37-2: 2 time flash (Tho-R2), E37-5: 5 time flash (Tho-SC), E37-6: 6 time flash (Tho-H) 5.
Page 81 Green Outdoor air temperature Content Error code Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-A) 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
Page 82 Green Content Error code Discharge pipe temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-D1) E39-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
Page 83 Green High pressure anomaly Content Error code Keeps flashing Stays Off Indoor Remote controller: (63H1-1activated) 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check the sensed value of high pressure sensor when the...
Page 84 Green Content Error code Keeps flashing Stays Off E41(E51) Indoor Remote controller: Power transistor overheat E41(E51)-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating conditions Check the temperature of Save data for 30 minutes before stopping in Mente PC power transistor...
Page 85 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Current cut (CM1) E42-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating conditions Save data for 30 minutes before stopping in Mente PC Check pressure anomaly Check the operation of...
Page 86 Green Content Error code Excessive number of indoor units connected, Keeps flashing Stays Off Indoor Remote controller: excessive total capacity of connection E43-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E43-1:1 time flash (Excessive number of indoor units connected), E43-2:2 time flash (Excessive capacity of indoor units connection) 5.
Page 87 Green Content Error code Communication error between Keeps flashing Stays Off Indoor Remote controller: inverter PCB and outdoor control PCB E45-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating conditions Save data for 30 minutes before stopping in Mente PC Is 15V...
Page 88 Green Content Error code Mixed address setting methods Keeps flashing Stays Off Indoor Remote controller: coexistent in same network. 7-segment display: Keeps flashing Stays Off Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating conditions Save data for 30 minutes before stopping in Mente PC Check the address setting...
Page 89 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Outdoor DC fan motor anomaly E48-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E48-1: 1 time flash (FMO1), E48-2 : 2 time flash (FMO2) Inspect also the fan motor 2 even if it is E48-1. 5.
Page 90 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Low pressure anomaly 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating conditions Save data for 30 minutes before stopping in Mente PC Check error status.
Page 91 Green Content Error code Suction pipe temperature thermistor anomaly (Tho-S), Keeps flashing Stays Off E53/E55 Indoor Remote controller: E53/E55-1 Under-dome temperature thermistor anomaly (Tho-C1) 7-segment display: Keeps flashing 1 time flash Outdoor E53: Tho-S, E55-1: Tho-C1 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure...
Page 92 Green Content Error code High pressure sensor anomaly (PSH) Keeps flashing Stays Off Indoor Remote controller: E54-1, 2 *1 Low pressure sensor anomaly (PSL) 7-segment display: Keeps flashing Outdoor *1 E54-1: 1 time flash (PSL), E54-2 : 2 time flash (PSH) 5.
Page 93 Green Content Error code Power transitor temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-P1) E56-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition.
Page 94 Green Content Error code Anomalous compressor Keeps flashing Stays Off Indoor Remote controller: by loss of synchronism E58-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating condition Save data for 30 minutes before stopping in Mente PC Check the data for 30 minutes before stopping...
Page 95 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Compressor startup failure (CM1) E59-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of operating conditions Save data for 30 minutes before stopping in Mente PC Check the data for 30 minutes before stopping Check the power supply...
Page 96 Green Content Error code Rotor position detection failure Keeps flashing Stays Off Indoor Remote controller: (CM1) E60-1 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Check and save the data of Save data for 30 minutes before stopping in Mente PC operating conditions Correct it...
Page 97 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Emergency stop 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Indoor unit Diagnosis Countermeasure Check and save the data of operating conditions Save data for 30 minutes before stopping in Mente PC Check the conditions whether it occurs immediately after the power...
Page 98 2.4 Outdoor unit control PCB replacement procedure PCB012D017A Precautions for Safety ¡ Since the following precaution is the important contents for safety, be sure to observe them. WARNING and CAUTION are described as follows: Indicates an imminently hazardous situation which will result in death or serious injury if WARNING proper safety procedures and instructions are not adhered to.
Page 99 Fan motor voltage measurement point (between L63, L64) PCB voltage measurement point (between F1, DS1(-)) Fig.1 Voltage measurement points Target PCB Appearance of the controller...
Page 100 2.5 Inverter PCB replacement procedure PCB012D018AB Precautions for Safety ¡ Since the following precaution is the important contents for safety, be sure to observe them. WARNING and CAUTION are described as follows: Indicates an imminently hazardous situation which will result in death or serious injury if WARNING proper safety procedures and instructions are not adhered to.
Page 101 Fan motor voltage measurement point (L63 - L64) Target pwb PCB voltage measurement point Pwb voltage measurement point PCB voltage measurement point (F1-DS(-)) Fig.1 Voltage Measurement Points Fig.1 Voltage Measurement Points Terminal Harness Snubber capacitor Inverter PCB Connection binder Power transistor (Metallic pillar) Installation Method to Power transistor Procedure on tightening harness (snubber capacitor) and power transistor with screw. •...
Page 102 < Function of Dip switch for control (SW3, 4, 5) •SW3 (Function setting) •SW4 (Change demand ratio) Switch Function Switch Function Inspection LED reset Compressor capacity 60% SW3-1 Normal Compressor capacity 0% SW4-5 SW4-6 Forced cooling/heating Compressor capacity 80% SW3-7 Normal Compressor capacity 40% •SW5 (Function setting)
Page 103 ●DIP Switch setting list (1) Outdoor unit (a) Control PCB Switches Description Default setting Remarks Outdoor address No. (Order of 10) 0‑9 Outdoor address No. (Order of 1) 0‑9 Inspection LED reset Normal*/Reset Normal SW3‑1 SW3‑2 Spare keep OFF Spare keep OFF SW3‑3 Reserved keep OFF SW3‑4 Check operation start Normal*/Start Normal SW3‑5 Reserved keep OFF SW3‑6 Forced heating/cooling Normal*/Forced Normal SW3‑7 SW3‑8...
Page 104 ……shows local wining.
Page 105 ……shows local wining.
Page 106 CNA〜Z Connector Remote Control PCB controller Drain motor Th t° Ｃ F200−203 Fuse Th −R1 t° ＩＩ Fan motor Signal line CNK1 （Shielded cord） Float switch Y／GN Th −R2 t° Ｉ JSL1 Live Superlink terminal setting（for spare） Signal line Connector for branching between indoor units LED・2 controllerof heat recovery Indication lamp Th −R3 t° Ｉ 3−pipe systems （Green−Normal operation） Power PCB Y／GN LED・3 Y／GN CNW2 CNW3...
Page 107 Color Marks CNA〜Z Connector Stepping motor SW7−1 Operation check,Drain motor test run Mark Color Drain motor （For electronic expansion valve） Terminal block（Power source） BK Black F200〜203 Fuse Indoor unit address：tens place （□ mark） Blue Fan motor Indoor unit address：ones place Terminal block（Signal line）（口mark） BR Brown Float switch Outdoor unit address：tens place Thermistor（Remote controller） Gray JSL1 Live Superlink terminal setting（for spare） Outdoor unit address：ones place Th −A Thermistor（Return air） Orange LED・2 Indication lamp SW5−1 Th −R1,2,3 Thermistor（Heat exchanger） Pink Automatic adjustment／Fixed （Green−Normal operation）...
Page 108 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Drain motor Brown Fuse Gray Fan motor（with thermostat） Orange Float switch JSL1 Live Superlink terminal setting（for spare） White Yellow LED・2 Indication lamp（Green−Normal operation） Y／GN Yellow／Green LED・3 Indication lamp（Red−Inspection） 5 or 6 wires Louver motor Th −R1 Th −R2 Th −R3 Th −A Louver switch Power source line t° t° t° t° between indoor units Connector for branching Stepping motor controller of heat recovery 220ｰ240V （for electronic expansion valve）...
Page 109 Color Marks Mark Color Capacitor for FM Black Connector CNA〜Z Blue Drain motor Brown Fuse Gray Fan motor（with thermostat） Orange Float switch White JSL1 Live Superlink terminal setting（for spare） Yellow LED・2 Indication lamp（Green−Normal operation） Y／GN Yellow／Green LED・3 Indication lamp（Red−Inspection） Louver motor 5 or 6 wires Th −R1 Th −R2 Th −R3 Th −A Louver switch Power source line Stepping motor t° t° t° t° between indoor units Connector for branching controller of heat recovery （for electronic expansion valve）...
Page 110 Color Marks Mark Color Capacitor for FM Black Connector CNA〜Z Blue Drain motor Brown Fuse Gray Fan motor（with thermostat） Orange Float switch JSL1 Live Superlink terminal setting（for spare） White Yellow LED・2 Indication lamp（Green−Normal operation） Y／GN Yellow／Green LED・3 Indication lamp（Red−Inspection） Louver motor 5 or 6 wires Th −R1 Th −R2 Th −R3 Th −A Louver switch Power source line t° t° t° t° Stepping motor between indoor units Connector for branching controller of heat recovery 220ｰ240V （for electronic expansion valve）...
Page 111 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Drain motor Brown Fuse Gray Light Blue Fan motor（with thermostat） Light Green Float switch Orange JSL1 Live Superlink terminal setting（for spare） Pink LED・2 Indication lamp（Green−Normal operation） SW3 SW4 LED・3 Indication lamp（Red−Inspection） White Louver motor Yellow 5 or 6 wires Th −R1 Th −R2 Th −R3 Th −A CNL6 Louver switch Y／GN Yellow／Green 10 11 Stepping motor（for electronic expansion t°...
Page 112 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Drain motor Brown Fuse Gray Light Blue Fan motor（with thermostat） Light Green Float switch Orange JSL1 Live Superlink terminal setting（for spare） Pink LED・2 Indication lamp（Green−Normal operation） SW3 SW4 LED・3 Indication lamp（Red−Inspection） White Louver motor 5 or 6 wires Yellow Th −R1 Th −R2 Th −R3 Th −A CNL6 Louver switch Y／GN Yellow／Green 10 11 t°...
Page 113 5 or 6 wires Power source line Th −R1 Th −R2 Th −R3 Th −A between indoor units t° t° t° t° Connector for branching controller of heat recovery 220ｰ240V 3−pipe systems CNS2 CNA2 CNN2 Power source Single−phase 220ｰ240V〜 50Hz 220V〜 60Hz CNW1 CNW2 1 2 3 4 5 6 Power source line F（3.15A） LED・2 LED・3 SW3 SW4 JSL1 CNW0 F（3.15A） Superlink（spare） CNK1 CNK2 Y／GN...
Page 114 5 or 6 wires Power source line Th −R1 Th −R2 Th −R3 Th −A between indoor units t° t° t° t° Connector for branching controller of heat recovery 220ｰ240V CNS2 3−pipe systems Power source CNA2 CNN2 Single−phase 220ｰ240V〜 50Hz 220V〜 60Hz CNW1 1 2 3 4 5 6 CNW2 Power source line F（3.15A） LED・2 LED・3 SW3 SW4 JSL1 CNW0 F（3.15A） Superlink（spare） CNK1 CNK2 Y／GN...
Page 115 5 or 6 wires Notes 1. indicates wiring on site. 2. Use twin core cable（0.75〜1.25mm ）at signal line between indoor unit and outdoor unit, and signal line between indoor units. 3. Use twin core cable（0.3mm ）at remote controller line. See spec sheet of remote controller in case that the total length is more than 100m. 4. Do not put signal line and remote controller line alongside power source line.
Page 116 Capacitor for FM CNA〜Z Connector Connector for branching controller of heat recovery Th −R1 Th −R2 Th −R3 Th −A Drain motor 3−pipe systems Fuse t° t° t° t° Fan motor（with thermostat） 220ｰ240V Power source line Float switch between indoor units JSL1 Live Superlink terminal setting（for spare） Power source LED・2 Indication lamp（Green−Normal operation）（Single−phase） Control PCB CNW2 220ｰ240V〜 50Hz CNW1 LED・3 Indication lamp（Red−Inspection） Stepping motor（for electronic expansion Power source F（3.15A） line valve） LED・2 F（3.15A） CNW0 Indoor unit address: tens place Indoor unit address: ones place...
Page 117 Capacitor for FM CNA〜Z Connector Connector for branching Fuse controller of heat recovery Th −R1 Th −R2 Th −R3 Th −A 3−pipe systems Fan motor（with thermostat） t° t° t° t° 220ｰ240V Float switch Power source line JSL1 Live Superlink terminal setting（for spare） between indoor units Power source LED・2 Indication lamp（Green−Normal operation）（Single−phase） LED・3 Indication lamp（Red−Inspection） Control PCB CNW2 220ｰ240V〜 50Hz CNW1 220V〜 60Hz Stepping motor（for electronic expansion F（3.15A） Power source valve） LED・2 line F（3.15A） CNW0 Indoor unit address: tens place Indoor unit address: ones place...
Page 118 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Drain motor Brown Gray Fuse Orange Fan motor（with thermostat） Float switch White Live Superlink terminal setting Yellow JSL1 （for spare） Th −R1 Th −R2 Th −R3 Th −A Y／GN Yellow／Green Indication lamp t° t° t° t° LED・2 （Green−Normal operation） Connector for branching LED・3 Indication lamp（Red−Inspection） 220ｰ240V controller of heat recovery 3−pipe systems Stepping motor Power source line between indoor units （for electronic expansion valve）...
Page 119 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Drain motor Brown Fuse Gray Orange Fan motor（with thermostat） Float switch White Live Superlink terminal setting JSL1 Yellow （for spare） Th −R1 Th −R2 Th −R3 Th −A Y／GN Yellow／Green Indication lamp LED・2 t° t° t° t° （Green−Normal operation） Connector for branching LED・3 Indication lamp（Red−Inspection） 220ｰ240V controller of heat recovery Stepping motor 3−pipe systems Power source line （for electronic expansion valve）...
Page 120 5 or 6 wires Power source line Th −R1 Th −R2 Th −R3 Th −A between indoor units t° t° t° t° Connector for branching controller of heat recovery 3−pipe systems 220ｰ240V Power source CNA2 CNN3 CNN4 CNN5 Single−phase 220ｰ240V〜 50Hz 1 2 3 4 5 6 CNW1 CNW2 Power source line F（3.15A） LED・2 LED・3 SW3 SW4 JSL1 CNW0 F（3.15A） Superlink（spare） CNK1 CNK2 Y／GN...
Page 121 Power source （Single−phase） CNA〜Z Connector 220ｰ240V〜50Hz 220ｰ240V 220V〜60Hz F,F202 Fuse −R1 Th −R2 Th −R3 −A Fan motor（with thermostat） Power source line between indoor units t° t° t° t° JSL1 Live Superlink terminal setting（for spare） Connector for branching LED・2 Indication lamp（Green−Normal operation） controller of heat recovery LED・3 Indication lamp（Red−Inspection） 3−pipe systems Louver motor Control PCB CNW1 Stepping motor Option CNW2 （for electronic expansion valve）（3.15A）...
Page 122 Power source （Single−phase） CNA〜Z Connector 220ｰ240V 220ｰ240V〜50Hz F,F202 Fuse −R1 Th −R2 Th −R3 −A 220V〜60Hz Fan motor（with thermostat） Power source line t° t° t° t° JSL1 Live Superlink terminal setting（for spare） between indoor units Connector for branching LED・2 Indication lamp（Green−Normal operation） controller of heat recovery LED・3 Indication lamp（Red−Inspection） 3−pipe systems Louver motor Control PCB CNW1 Option Stepping motor CNW2 （for electronic expansion valve）（3.15A）...
Page 123 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Fuse Brown Fan motor（with thermostat） Orange Live Superlink terminal JSL1 Pink setting（for spare） Indication lamp LED・2 White （Green−Normal operation） Yellow Indication lamp LED・3 Y／GN Yellow／Green （Red−Inspection） Louver motor Stepping motor （for electronic expansion valve） 5 or 6 wires Th −R1 Th −R2 Th −R3 Th −A Indoor unit address: tens place Indoor unit address: ones place t° t° t° t° Power source line Outdoor unit address: tens place Connector for branching ...
Page 124 Color Marks Mark Color Capacitor for FM Black CNA〜Z Connector Blue Fuse Brown Fan motor（with thermostat） Orange Live Superlink terminal JSL1 Pink setting（for spare） Indication lamp LED・2 White （Green−Normal operation） Yellow Indication lamp LED・3 Y／GN Yellow／Green （Red−Inspection） Louver motor Stepping motor （for electronic expansion valve） 5 or 6 wires Th −R1 Th −R2 Th −R3 Th −A Indoor unit address: tens place Indoor unit address: ones place t° t° t° t° Power source line Outdoor unit address: tens place Connector for branching ...
Page 125 Color Marks Mark Color Mark Color Black CF Capacitor for FM Blue RD／Y Red／Yellow CNA〜Z Connector 5 or 6 wires Brown White − − − − Gray Yellow Fuse Orange Y／GN Yellow／Green t° t° t° t° Fan motor（with thermostat） Connector for branching 220ｰ240V Power source line controller of heat recovery JSL1 Live Superlink terminal setting（for spare） between indoor units CNN3 CNN4 CNN5 CNH2 3−pipe systems...
Page 126 Color Marks Mark Color Mark Color Black Capacitor for FM Blue RD／Y Red／Yellow CNA〜Z Connector Brown White 5 or 6 wires − − − − Gray Yellow Fuse Orange Y／GN Yellow／Green t° t° t° t° Tr Fan motor（with thermostat） Connector for branching 220ｰ240V Power source line controller of heat recovery JSL1 Live Superlink terminal setting（for spare） between indoor units CNN3 CNN4 CNN5 CNH2...
Page 127 Color Marks Mark Color Black Blue Brown Gray Orange 5 or 6 wires White −R1 Th −R2 Th −R3 −A Capacitor for FM Yellow CNA〜Z Connector Y／GN Yellow／Green t° t° t° t° Fuse 220Vｰ240V Fan motor（with thermister） JSL1 Live Superlink terminal setting（for spare） Connector for branching controller of heat recovery 3−pipe systems LED・2 Indication lamp（Green−Normal operation） LED・3 Indication lamp（Red−Inspection） CNW1 CNW2 1 2 3 4 5 6 Stepping motor Power Source （For electronic expansion valve）...
Page 128 Cooling Heating Outdoor unit Service valve External air Thermistor Indoor unit A (Tho-A) Gas piping Heat exchanger Heat exchanger 224: ø19.05 Thermistor (Outlet) 280: ø22.22 -R3) 4-way switching solenoid High pressure sensor Thermistor (Heat exchanger) (PSH) Check (ThI-R1) joint Check joint Solinoid valve Low pressure sensor Thermistor (Return air)
Page 129 Cooling Heating Outdoor unit Service valve External air Thermistor Gas piping Indoor unit A (Tho-A) ø25.4 Heat exchanger Heat exchanger Thermistor (Outlet) 4-way switching solenoid High pressure sensor (ThI-R3) Thermistor (Heat exchanger) (PSH) Check -R1) joint Check joint Strainer Solinoid valve Low pressure sensor Thermistor (Return air) Check valve...
Page 130 5 APPLICACTION DATA PJF012D007 INSTALLATION MANUAL FOR CEILING CASSETTE 5.1 Installation of indoor unit -4WAY- TYPE (FDT) ①B This manual is for the installation of an indoor unit. ●In CAUTION For electrical wiring work (Indoor), refer to the electrical wiring work installation manual. For remote ●Co controller installation, refer to the installation manual attached to a remote controller.
Page 131 (a) Ceiling cassette-4way type (FDT) PJA012D007 ①Before installation ③Preparation before installation ●Install correctly according to the installation manual. ●If suspension bolt becomes longer, do reinforcement of earthquake resistant. ●Confirm the following points: 　○For grid ceiling 　○Unit type/Power supply specification ○Pipes/Wires/Small parts ○Accessory items 　　When suspension bolt length is over 500mm, or the gap between the ceiling and roof is over 700mm, apply earthquake resistant brace to the bolt.
Page 132 ④Installation of indoor unit (continued) ⑥Drain pipe ⑥D 6. Make sure to install the indoor unit horizontally. Confirm the Caution levelness of the indoor unit with a level gauge or transpar- Drain ●　 Install the drain pipe according to the installation manual in order to drain properly. ent hose filled with water.
Page 133 ⑧Panel installation ⑥Drain pipe (continued) ●Attach the panel on the indoor unit after electrical wiring work. ●Attach the panel on the indoor unit after electrical wiring work. Drain test (See next page) ●Refer to attached manual for panel installation for details. ●Refer to panel installation manual for details.
Page 134 PJF012D003...
Page 136 (b) Ceiling cassette-4way compact type (FDTC) PJA012D756 Before installation Preparation before installation Install correctly according to the installation manual. If suspension bolt becomes longer, do reinforcement of earthquake resistant. Conﬁ rm the following points: For grid ceiling Unit type/Power supply speciﬁ cation Pipes/Wires/Small parts Accessory items When suspension bolt length is over 500mm, or the gap between the ceiling and roof is over 700mm, apply earthquake resistant brace to the bolt.
Page 137 Installation of indoor unit (continued) Drain pipe (continued) 6. Make sure to install the indoor unit horizontally. Conﬁ rm the Work procedure Drain p levelness of the indoor unit with a level gauge or transparent hose 1. Insert the supplied drain hose (the end made of soft PVC) to the step of the drain socket on the indoor unit 1.
Page 138 Drain pipe (continued) Panel installation (continued) Drain pump operation Work procedure In case electrical wiring work ﬁ nished 1. Make sure that the indoor unit is positioned at the correct height with the supplied level gauge. Drain pump can be operated by remote controller (wired). Remove the level gauge before you install the panel.
Page 139 PJA012D751...
Page 141 (C) Ceiling cassette-2way type (FDTW) PJB012D227 ①Before installation ③Preparation before installation (continued) ●If placing the unit with the top plate facing up (in the reversed orientation of packaging) is ●Install correctly according to the installation manual. unavoidable, use care so that the area other than supporting member of the unit, will not be ●Confirm the following points: subjected to excessive loads.
Page 142 ⑤Refrigerant pipe ⑥Drain pipe (continued) ⑥D Caution 2. Prepare a joint for connecting VP-20 pipe, adhere and connect the joint to the drain hose Drain (the end made of rigid PVC), and adhere and connect VP-20 pipe (prepare on site). ●Use the new refrigerant pipe.
Page 143 ⑧Panel installation ⑥Drain pipe (continued) ●Attach the panel on the indoor unit after electrical wiring work. hose Drain pump operation Work procedure ○In case electrical wiring work finished 1. Using the paper pattern attached as an accessory, check to ensure the unit height and 　Drain pump can be operated by remote controller (wired).
Page 144 (d) Ceiling cassette-1way type (FDTS) PJC012D012 Before installation Preparation before installation (continued) Install correctly according to the installation manual. Ceiling opening dimension  Conﬁ rm the following points:  Suspension bolt position   Unit type/Power supply speciﬁ cation Pipes/Wires/Small parts Accessory items ...
Page 145 Refrigerant pipe Drain pipe (continued) Refrigerant pipe Drain pipe (continued) Work procedure Drain te Caution 1. Insert the supplied drain hose (the end made of soft PVC) to the step of the drain socket on the After Use the new refrigerant pipe. Work procedure Drain test Caution...
Page 146 Drain pipe (continued) Panel installation Attach the panel on the indoor unit after electrical wiring work. Drain test Refer to attached manual for panel installation for details. After installation of drain pipe, make sure that drain system work in good condition and no water Open the grille and remove the bafﬂ...
Page 147 (e) Ceiling cassette-1way compact type (FDTQ) PJC012D116 ①Before installation ③Preparation before installation (continued) ●Direct blow panel ●Install correctly according to the installation manual. ●Confirm the following points: Short panel 　○Unit type/Power supply specification ○Pipes/Wires/Small parts ○Accessory items Drain hose piece (Suspension bolts pitch) (Accessory) Hanger plate for (Installed on site) suspension bolt...
Page 148 ⑤The indoor unit change procedure for duct type (continued) ④Installation of indoor unit (continued) ⑦D 6. Make sure to install the indoor unit horizontally. Confirm the Caution levelness of the indoor unit with a level gauge or transpar- ●Take care that the static pressure does not exceed 30 Pa. 1.
Page 149 ⑦Drain pipe (continued) ⑦Drain pipe (continued) Work procedure Drain pump operation 1. Insert the supplied drain hose (the end made of soft PVC) to the step of the drain socket on the indoor unit ○In case electrical wiring work finished and fix it securely with the clamp.
Page 150 PJC012D118 PANEL INSTALLATION MANUAL Please read this manual together with installation manual of indoor unit. Mount t Warning ● Please perform electrical work after cutting off main power. ① Attach 2 o Otherwise, electrical shock or malfunction, etc. may occur. diagonal p Notice Short Panel Wide Panel...
Page 151 012D118 Mount the panel ① Attach 2 of 4 hanging bolts supplied with the panel on the indoor piping side and its ● diagonal position respectively, and tighten them gently for 5mm. ( marks) Air outlet ② Open the suction grille, hang the panel onto 2 bolts, and secure it temporarily. When securing the panel temporarily, hang the panel onto side bolts as shown in the left figure, then hang onto...
Page 152 (f) Duct connected High static pressure type (FDU) PJC012D048 (1) Models 71～140 ○This model is middle static ducted type air conditioning unit. Therefore, do not use this model for direct ③Preparation before installation blow type air conditioning unit. ①Before installation ●If suspension bolt becomes longer, do reinforcement of earthquake resistant. 　○For grid ceiling ●Install correctly according to the installation manual.
Page 153 ⑥Refrigerant pipe ⑤Duck Work A corrugated board (for preventing sputtering) is attached to the main body of the air conditioner Caution (on the outlet port). Do not remove it until connecting the duct. ●Use the new refrigerant pipe. ①●The air conditioner main unit does not have an air filter. Incorporate it into the easy-to-clean When re-using the existing pipe system for R22 or R407C, pay attention to the following items.
Page 154 ⑦Drain pipe (continued) ⑦Drain pipe (continued) 2. Prepare a joint for connecting VP-20 pipe, adhere and connect the joint to the drain hose Drain pump operation (the end made of rigid PVC), and adhere and connect VP-20 pipe (prepare on site). ○In case electrical wiring work finished ※As for drain pipe, apply VP-20 made of rigid PVC which is on the market.
Page 155 (2) Models 224, 280 PJD012D036 D036 Control box ○This model is high static ducted type air conditioning Air outlet ③Preparation before installation unit. Therefore, do not use this model for direct blow type air conditioning unit. ●If suspension bolt becomes longer, do reinforcement of earthquake resistant. 　○For grid ceiling Air inlet This surface becomes...
Page 156 ⑥Refrigerant pipe ⑤Duck work ⑦D ②Silencing chamber (blowout) Caution ②Silencing chamber (blowout) 3. M Detailed view of part A (hanger, vibration proof) ●Use the new refrigerant pipe. ⑦Heat insulation ③Campus joint ③A ③Campus joint ④Airflow adjustment damper 　When re-using the existing pipe system for R22 or R407C, pay attention to the following items. ●...
Page 157 ⑧Wiring-out position and wiring connection ⑦Drain pipe (continued) ● Electrical installation work must be performed according to the installation manual by an 3. Make sure to make descending slope of greater than 1/100 and do not make up-down bend electrical installation service provider qualified by a power provider of the country, and be and/or trap in the midway.
Page 158 (g) Duct connected Middle static pressure type (FDUM) PJR012D317 ○This model is middle static ducted type air conditioning unit. Therefore, do not use this model for direct ③Preparation before installation (continued) blow type air conditioning unit. ①Before installation Pipe locations UNIT: mm Multi type 22~90 ●Install correctly according to the installation manual. Single type 50~71 ●Confirm the following points:...
Page 159 ⑥Refrigerant pipe ⑤Duck Work (continued) ⑦D 2. P 　 ●When placing the inlet port to carry out suction from the bottom side, use the following Caution procedure to replace the suction duct joint and the bottom plate. ●Use the new refrigerant pipe. ※...
Page 160 ⑦Drain pipe (continued) ⑦Drain pipe (continued) 2. Prepare a joint for connecting VP-20 pipe, adhere and connect the joint to the drain hose Drain pump operation (the end made of rigid PVC), and adhere and connect VP-20 pipe (prepare on site). ○In case electrical wiring work finished ※As for drain pipe, apply VP-20 made of rigid PVC which is on the market.
Page 161 (h) Duct connected (Ultra thin) Low static pressure type (FDQS) PJC012D013 ○This model is low static ducted type air conditioning unit. Therefore, do not use this model for direct ③Preparation before installation blow type air conditioning unit. ①Before installation ●If suspension bolt becomes longer, do reinforcement of earthquake resistant. ○For grid ceiling ●Install correctly according to the installation manual.
Page 162 ⑤Duck Work (continued) ⑦Drain pipe (continued) ⑦D 3. The air conditioning unit main body is not equipped with air filters. Incorporate air filters in Drain Work procedure an air intake grille, which will facilitate the cleaning of air filters. 1. Insert the supplied drain hose (the end made of soft PVC) to the step of the drain socket on the indoor unit ○In 4.
Page 163 ⑦Drain pipe (continued) Drain pump operation door unit ○In case electrical wiring work finished end. 　Drain pump can be operated by remote controller (wired). 　For the operation method, refer to Operation for drain pump in the installation manual for wiring work.
Page 164 (i) Wallmounted type (FDK) PHA012D033 D033 ①Before installation ③Preparation before installation Front view for installing position and installing space UNIT: mm ●Install correctly according to the installation manual. Service space ●Confirm the following points: Service space 　○Unit type/Power supply specification ○Pipes/Wires/Small parts ○Accessory items 4-12x18 oval hole Installing plate...
Page 165 ④Installation of indoor unit (continued) ⑥Shaping of pipes and drain hoses ⑦R (When it is routed through the rear) Indoor unit Unit installation ●U Mounting plate ○Shaping of pipes ○Tape wrapping Latch (2 places) 　W Lid (Right) 　・ Make sure that wires are connected Pipe 　・...
Page 166 ⑦Refrigerant pipe ⑧Drain pipe (continued) Caution 3. Pour water into the drain pan placed underneath the heat exchanger to make sure that it is properly drained outdoors. ●Use the new refrigerant pipe. (For removal of the front panel, refer to ⑤Wiring-out position and wiring connection in this manual.
Page 167 (j) Ceiling suspended type (FDE) PFA012D618 D618 ①Before installation ③Preparation before installation (continued) (mm) Install correctly according to the installation manual. Pitch of suspension bolts and pipe position Series type Con rm the following points: 40 to 50type 1070 1022 Pitch of suspension bolts Single Split (PAC) 60 to 71type 1320...
Page 168 ⑤Installation of indoor unit ⑥Refrigerant pipe (continued) ⑧W Work procedure The pipe can be connected from three different directions. (back, reight, top) Paper pattern 1. Select the suspension bolt locations and the pipe hole location. When the pipe is routed through the back. (1) Use enclosed paper pattern as a reference, and If the bracket is removed, piping work will become easy.
Page 169 ⑧Wiring-out position and wiring connection ⑪How to set the airﬂow direction Electrical installation work must be performed according to the installation It is possible to change the movable range of the louver on the air outlet from manual by an electrical installation service provider quali ed by a power the wired remote controller.
Page 170 (k) Floor standing (with casing) type (FDFL) PGD012D005 Before installation Preparation before installation l Install correctly according to the installation manual. Position of bolts for floor bracket and for wall installation bolts l Confirm the following points: Unit type/Power supply specification Pipes/Wires/Small parts ...
Page 171 Installation of indoor unit Refrigerant piping Caution Choose the floor bracket bolt location or the wall installation bolt location, and the location of the pipe Caution hole. Open the holes for the bolts and the pipe. l Use the new refrigerant pipe. Insert the Choose the positions by the measured values.
Page 172 Drain pipe Remote Controller Caution Caution Insert the attached drain hose to the indoor unit completely, tighten the drain hose with the attached l Appearance clamp and secure it well.(Disapprove of the adhesive joint) When installing the remote controller and selecting the line of remote controller of the unit, refer to rts.
Page 173 (l) Floor standing (without casing) type (FDFU) PGD012D006 Before installation Preparation before installation l Install correctly according to the installation manual. Position of bolts for floor bracket and for wall installation bolts l Confirm the following points: Unit type/Power supply specification Pipes/Wires/Small parts Accessory items Position of floor bracket bolts Accessory item Floor bracket (Accessory),...
Page 174 Installation of indoor unit Refrigerant piping Choose the floor bracket bolt location or the wall installation bolt location, and the location of the pipe Caution Cautio hole. Open the holes for the bolts and the pipe. l Use the new refrigerant pipe. Insert th Choose the positions by the measured values.
Page 175 Drain pipe Check list after installation ●Check the following items after all installation work completed. Caution Insert the attached drain hose to the indoor unit completely, tighten the drain hose with the attached Check if; Expected trouble Check clamp and secure it well.(Disapprove of the adhesive joint) rts.
Page 176 (m) Duct Connected-Compact & Flexible type (FDUH) PJC012D200 ①Before installation ③Preparation before installation (continued) ●Install correctly according to the installation manual. Ceiling opening, Suspension bolts pitch, Pipe position ●Confirm the following points: ○Unit type/Power supply specification ○Pipes/Wires/Small parts ○Accessory items Symbol Content Model FDUH22KXE6,28KXE6 FDUH36KXE6 Accessory item φ9.52 （...
Page 177 ④Installation of indoor unit (continued) ⑤Duct work (continued) ⑦D Example of bad duct work 3. Make sure to install the indoor unit horizontally. Confirm the Bad example of duct work levelness of the indoor unit with a level gauge or transpar- ● I Indoor unit ent hose filled with water.
Page 178 ⑦Drain pipe ⑧Wiring-out position and wiring connection ● Electrical installation work must be performed according to the installation manual by an Caution electrical installation service provider qualified by a power provider of the country, and be ● Install the drain pipe according to the installation manual in order to drain properly. executed according to the technical standards and other regulations applicable to electrical Imperfection in draining may cause flood indoors and wetting the household goods，...
Page 179 5.2 Electrlc wiring work instruction PSB012D922 PSB012D922 ELECTRIC WIRING WORK INSTRUCTION ①　 Electrical Wiring Connection (continued) ③　 Electrical wiring work must be performed by an electrician qualified by a local power provider according ●Electrical wiring work must be performed by an electlician an qualified by a to the electrical installation technical standards and interior wiring regulations applicable to the local power provider.
Page 180 ③　 Remote Control, Wiring and functions (continued) ④　 Trial operation (continued) Control plural indoor units by a single remote controller Checking operation data ①　A remote controller can control plural indoor units (up to 16) Operation data can be checked with remote control unit operation. In above setting, all plural indoor units will operate under same mode and temperature setting.
Page 181 ⑤ Function Setting by Remote Controller The functional setting. • The initial function setting for typical using is performed automatically by the indoor unit connected, when remote controller and indoor unit are connected. As long as they are used in a typical manner, there wiil be no need to change the initial settings. If you would like to change the initial setting marked “...
Page 182 ⑤ Function Setting by Remote Controller (continued) (i) Remote controller function Stop air-conditioner and press (SET) + (MODE) buttons “ ” : Initial settings at the same time for over three seconds. “ ” : Automatic criterion Function When you use at 50Hz area setting When you use at 50Hz area When you use at 60Hz area...
Page 183 ⑤ Function Setting by Remote Controller (continued) (ii) Indoor unit function Stop air-conditioner and press “ ” : Initial settings (SET) + (MODE) buttons at the same time for over three seconds. “ ” : Automatic criterion Indoor unit No. are indicated only when Note1: Fan setting of "HIGH SPEED"...
Page 184 ⑥ Control mode switching or unit, and is automatically defined as following table. ●The control content of indoor units can be switched in following way. ( is the default setting) Switch No. control content door unit. Indoor unit address (tens place) mode Indoor unit address (ones place) p of air flow setting...
Page 185 Installation manual for wired remote controller Connect the remote controller cord 5.3 Installation manual for wired remote controller (Option parts) terminal block. Connect the terminal of remote co Read together with indoor unit's installation manual. with the terminal of indoor unit (X, (X and Y are no polarity) WARNING Wiring route is as shown in the rig Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on the depending on the pulling out direc terminal.
Page 186 remote controller Connect the remote controller cord to the Sheath Sheath The range of temperature setting Upper Upper terminal block. When shipped, the range of set temperature Connect the terminal of remote controller (X,Y) Upper case Upper case Board Board Heating : 16 ~ 30 C (55 ~ 86 with the terminal of indoor unit (X,Y).
Page 187 Sheath Sheath The range of temperature setting Upper When shipped, the range of set temperature differs depending on the operation mode as below. Upper case Upper case Board Heating : 16 ~ 30 C (55 ~ 86 Except heating (cooling, fan, dry, automatic) : 18 ~ 30 C (62 ~ 86 Upper limit and lower limit of set temperature can be changed with remote controller.
Page 188 The functional setting Refer to page 268 automatically defined as following table. ble indoor unit. Operation message How to set function RUN" mode Function description: Function No. ee step of air flow setting Stop air-conditioner and press (SET) (MODE) setting description: of air flow setting buttons at the same time for over three seconds, and the "FUNCTION SET...
Page 189 5.4 Installation of outdoor unit MITSUBISHI HEAVY INDUSTRIES, LTD. MULTI AIR CONDITIONER OUTDOOR UNIT FOR BUILDINGS Never connect the grounding wire to a gas pipe because if gas ● leaks, it could cause explosion or ignition. ＊...
Page 190 Caution If superlink I (previous superlink) is selected, all the range of usage and limitations, not only the limitations of connectable indoor capacity and connectable number of indoor unit but also of the piping length, operating temperature range and etc., become same as those of KX4 (See technical manual '07・KX・ KXR-T-114).
Page 191 ● ） ● ） ● Ⅰ Ⅱ Ⅲ ＬＬＬＬ ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...
Page 192 25.4( 22.22) t1.0 25.4( 22.22) t1.0 Pipe sizes applicable to European installations are shown in perentheses. 25.4( 22.22) t1.0 Pipe sizes applicable to European installations are shown in perentheses. ＊...
Page 193 ● ● ● ● ① ② Legend ③ ④ ① ② ● ● ③ ● ● ● ● ● ● ④ ● ● ● ● ...
Page 194 ・（）〜〜（）〜〜（）〜〜（）〜〜）〜〜 ● ● ● ● ① ＜＞ ② ２２ ③ ④ ① ② ③ ℃...
Page 195 φ φ φ ● ● ● （）＝＋（）＋（）＋（）＋（）） ● ● ● ● ● ● ● ● ● ● ● ● ● ℃ ● ● ● ● ● ● ● ● ●...
Page 196 ・・・ L1・L2・L3・N 〜Ａ1 ・Ｂ1 〜〈Ⅰ〉・・・・・・〜〜Ａ・ＢＡ・ＢＡ・Ｂ・・・・・・ X ・ Y X ・ Y X ・ Y 〈Ⅰ〉〈Ⅱ〉〈Ⅷ〉 X ・...
Page 197 Ⅱ ● ○ △△ ○△△ ○△△ ● ① ② ○ △△ × ○△△ ● ● ● Ａ A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 ＡＢＡ...
Page 198 ● ※ ※ ※ ※ A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 A1 ・ B1 A2 ・ B2 Ａ...
Page 199 ｍｍ ① ② ③ ① ② ③ ④ ① ② ③ ④ ・ ⑤ ・ ⑥ ・ ⑦ ・・・・ ⑧ ・ ○○ ⑨ ⑩ ⑧ ⑪...
Page 200 ● ② ④ ーーー ① ④ ー ② ーーー ① ）ーーーー ③ ー ⑨ ⑤ ⑥ ｢｣ーー｢｣ ⑦ ｢｣ーー｢｣ ⑩ ーー...
Page 201 ● ▼ ① ▼ ② ⇔ ▲ ③ ▼ → → ▲」 ④ ⇔ ▲ ▼ ⇔ ⇔ ・・・ ⇔ ▼ ⑤ ⑥ → → ▲ ⑦ ⇔ ▲ ▼ ⇔ ⇔ ・・・ ⇔ ▼...
Page 202 ● ・・・・・・・...
Page 203 7-2. Selection of controls Controls of outdoor unit may be selected as follows using the dip switches on the PCB and P○○ on the 7-segment. To change P○○ on the 7-segment, hold down SW8 (7-segement display increment up: 1-digit), SW9 (7-segment increment up: 10-digit) and SW7 (Data write/Enter). Content of control Control selecting method SW setting on PCB...
Page 204 Ω ○○○○ ○ ○ ○ ▲ → → ▼ ▼ ○ ▼ ○ ● ●...
Page 205 5.5 Instructions for installing the branch pipe set PSB012D855B P−9 P−9 DIS-540-2 P−15 P−15...
Page 206 (model type DIS) (model type HEAD)
Page 209 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. updated May 11, 2009 Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. updated August 26, 2009...

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Mitsubishi Heavy Industries FDC224KXE6 Service Manual

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