Mitsubishi Heavy Industries FDT28KXE6A Service Manual
  1. Manuals
  2. Brands
  3. Mitsubishi Heavy Industries Manuals
  4. Air Conditioner
  5. FDT28KXE6A
  6. Service manual
Mitsubishi Heavy Industries FDT28KXE6A Service Manual

Mitsubishi Heavy Industries FDT28KXE6A Service Manual

Inverter driven multi-indoor unit climate control system
Hide thumbs Also See for FDT28KXE6A:
Table of Contents

Advertisement

Quick Links

SERVICE MANUAL

INVERTER DRIVEN MULTI-INDOOR UNIT
CLIMATE CONTROL SYSTEM
Alternative refrigerant R410A use models
(OUTDOOR UNIT)
(Heat pump type)
KX6 series
• Single use (Used also for combination)
FDC335KXE6-K, 400KXE6, 450KXE6, 504KXE6, 560KXE6, 560KXE6-K, 615KXE6, 680KXE6
• Combination use
FDC753KXE6, 800KXE6, 850KXE6, 900KXE6, 960KXE6, 1010KXE6, 1065KXE6, 1130KXE6,
1180KXE6, 1235KXE6, 1300KXE6, 1360KXE6
(INDOOR UNIT) -KX6 series-
FDT28KXE6A
36KXE6A
45KXE6A
56KXE6A
71KXE6A
90KXE6A
112KXE6A
140KXE6A
160KXE6A
FDUM22KXE6
28KXE6
36KXE6
45KXE6
56KXE6
71KXE6
90KXE6
112KXE6
140KXE6
FDUH22KXE6
28KXE6
36KXE6
Note
•
Regarding the Duct Connected-High static Pressure-type Outdoor Air Processing
Unit Series (FDU500∼1800FKXE6), refer to the DATA BOOK No.'08
FDTC22KXE6A
FDTW28KXE6
28KXE6A
45KXE6
36KXE6A
56KXE6
45KXE6A
71KXE6
56KXE6A
90KXE6
112KXE6
140KXE6
FDQS22KXE6
FDK22KXE6
28KXE6
28KXE6
36KXE6
36KXE6
45KXE6
45KXE6
56KXE6
56KXE6
71KXE6
Manual No. '09·KX-SM -128
updated November 19, 2009
FDTS45KXE6
FDTQ22KXE6
71KXE6
FDE36KXE6A
FDFL28KXE6
45KXE6A
56KXE6A
71KXE6A
112KXE6A
140KXE6A
-
-

FDU71KXE6
28KXE6
90KXE6
36KXE6
112KXE6
140KXE6
224KXE6
280KXE6
FDFU28KXE6
45KXE6
45KXE6
71KXE6
56KXE6
71KXE6
KX-DB-122
•

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the FDT28KXE6A and is the answer not in the manual?

Questions and answers

Related Manuals for Mitsubishi Heavy Industries FDT28KXE6A

Summary of Contents for Mitsubishi Heavy Industries FDT28KXE6A

  • Page 1: Service Manual

    • Single use (Used also for combination) FDC335KXE6-K, 400KXE6, 450KXE6, 504KXE6, 560KXE6, 560KXE6-K, 615KXE6, 680KXE6 • Combination use FDC753KXE6, 800KXE6, 850KXE6, 900KXE6, 960KXE6, 1010KXE6, 1065KXE6, 1130KXE6, 1180KXE6, 1235KXE6, 1300KXE6, 1360KXE6 (INDOOR UNIT) -KX6 series- FDT28KXE6A FDTC22KXE6A FDTW28KXE6 FDTS45KXE6 FDTQ22KXE6 FDU71KXE6...

  • Page 2: Table Of Contents

    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: Outline Of Operation Control By Microcomputer

    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: Operation Control Function By The Indoor Controller

    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 � � � � � �(�) �...
  • 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  minutes after operation stop, the anomalous stop, thermostat OFF and switching from cooling or dehumidifying operation to fan or heating operation. Indoor unit operation mode Stop Cooling...
  • 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: Operation Control Function By The Remote Controller

    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: Operation Control Function By The Outdoor Controller

    1.4 Operation control function by the outdoor controller (A) Normal control (1) Operation of major functional components under each operation mode Operation Cooling Heating mode Dehumidify Functional Thermostat ON Thermostat OFF Thermostat ON Thermostat OFF Defrost Components Remote controller Remote controller Remote controller Remote controller Intermittent...
  • Page 12 (2) Compressor control (Master unit/slave unit) (a) Starting compressor Compressor starting order (2 compressors specification) After turning the power on, firstly CM1 compressor starts. (In case of the combination use, it is CM01 of master unit) And corresponding to the condition of under-dome temperature and to the required capacity of indoor units thermostat ON, the next compressor will start sequentially, and finally maximum 4 compressors ( in case of combi- nation use) will start simultaneously.
  • Page 13 (3) Starting control of the compressor (Master unit/Slave unit) According to the elapsed time after power ON and to the number of start-up, the starting control method of compressor is shown in following table. However during the defrost control, oil return control and oil equalization control, the starting control method of compressor is depended on that of the each control.
  • Page 14 When the under-dome temperature (detected by Tho-C) exceeds 20°C and the under-dome superheat is 15degC, the compressor protective start control "A" is cancelled and the inverter frequency will be increased by 5Hz per 25 seconds. (d) Compressor protective start control "B" according to the crankcase heater ON time (Master unit/Slave unit) If it is the 1st startup after the cumulative crankcase heater ON time has elapsed less than 45 minutes since power ON After 4-way valve switching safeguard, inverter frequency is set at 20Hz.
  • Page 15 (5) Outdoor fan control (Master unit/slave unit) DC fan motor control The outdoor fan is controlled from 0th speed to 4th speed, and set the standard speed according to the model and operation mode. Under normal condition, 1st speed and 4th speed is standard, and under each condition the stepless fan control between 1st speed and 4th speed is performed.
  • Page 16 (6) Compressor pre-start control (Master unit/slave unit) The following control is performed when the compressor ON conditions are established. Pre-start control when the operation mode is same as previous operation mode: 1) In case of "Cooling /Dehumidifying" mode, 4-way valve is turned OFF. In case of "Heating" mode, 4-way valve is turned ON.
  • Page 17 �Heating � Cooling Heating Cooling FMo1,2 3 minutes 3 minutes Open/close control Opening Full-open degree control EEVH1,2 Opening degree control Initial opening degree Full-close EEVSC Min. of 3 minutes 15 sec. 1 minute 45 seconds Compressor stop Compressor start Starting conditions are satisfied (7) Crankcase heater control (Master unit/Slave unit) Crankcase heater ON (power on) and OFF (power off) are controlled with the under-dome temperature thermistor.
  • Page 18 (8) Defrrosting (Master unit/Slave unit) If the defrost starting conditions at the outdoor heat exchanger are established, defrost operation starts. (a) Temperature conditions for defrosting Conditions for starting defrost When all of following conditions are satisfied, defrost operation will be started. 1) When the cumulative operation time Fig.1 Without J15...
  • Page 19 (9) Protective control (a) Discharge pipe temperature control (Master unit/slave unit) (i) I f the discharge pipe temperature (detected with Tho-D1, D2) exceeds the set value, it makes the compressor capacity control performed and the solenoid valves SV1, 2 (for cooling down the compressor) open according to the compressor Hz in order to suppress the discharge pipe temperature rising.
  • Page 20 Initiation condition: When the detected current becomes following value. ① Within 2 minutes after starting operation of CM1 and CM2, the capacity control is done at the current safe value for starting mentioned in a) and b) ② During capacity measurement mode, the capacity control is done at the current safe value for measurement mode mentioned in a) and b) a) The inverter primary current (Current safe 1): See following graph (At starting and at measuring mode, the current safe value is the value (23.5A) at 35ºC of outdoor air tem-...
  • Page 21 CM01 (M=0) Master unit (N=0) CM02 (M=1) Current safe control Retain CM11 (M=0) Slave unit (N=1) CM12 (M=1) PI control Release ⑥ When master unit retains the current safe control information in itself or receive the current safe control informa- tion from slave unit, master unit send signal of “Current safe protective control”...
  • Page 22 (c) Power transistor temperature (PT) protective control (Master unit/Slave unit) If the power transistor temperature exceeds 75°C, the compressor speed is controlled. Speed is reduced once each minute Retention Release Power transistor temp. (°C) (d) Ventilation fan control for cooling inside control box (Master unit/Slave unit) If the relationship between the outdoor air temperature (detected with Tho-A) and the inverter frequency (the frequency of CM1 or CM2, whichever the higher) is in the ventilation fan ON zone in the figure mentioned below and when the CM1 or CM2 is operating, the ventilation fan FMC3 is turned ON.
  • Page 23 Protection for combination of outdoor units (Master unit) The capacity of connectable outdoor units is checked when the communication check is performed after turning the power If the checked result is other than the allowable combinations mentioned in the following table ① it is prohibited to start operation due to outdoor unit combination error.
  • Page 24 (iv) If any anomaly occurs when the auto backup is effective, the operation output (CnH), Anomaly output (CnY), 7-seg- ment display and LED show as follows. 1) At the system stop Operation output on the master unit is turned OFF, the Anomaly output is turned ON, 7-segment display and LED show the anomaly, and the remote controller displays E??.
  • Page 25 Delete (11) Test run (a) This control can be performed from the master unit, not from the slave unit. If this control is done from the slave unit, the following display is shown on the 7-segement display. The display returns to normal display if the test run control switch is reset. Code indicator Data indicator Contents of invalid operation...
  • Page 26 Optional controls • External input terminal ① 4 External input terminals (CnS1, CnS2, CnG1 and CnG2) are provided. (See fig-1) ② Each external input terminal can be changed its function by allotting the external input function No. of P11-P14 selected with 7-segment respectively.
  • Page 27 CnS1 performs the following operation according to switching the jumper wire (J13) shorted or open. In case of pulse input, the pulse width is 500ms or larger. ① J13 − Shorted Air-conditioner ON OK CnS1 input OFF (Open) ON (Shorted) OFF (Open) PUSH PUSH...
  • Page 28 Demand control Demand ratio can be changed with the dip switches (SW4-5, SW4-6) on the outdoor control PCB. SW4-5, SW4-6 demand switch: 0 - open, 1 - shorted Upper limit operation Hz of compressor Compressor output (%) 54Hz × 2 60Hz ×...
  • Page 29 CnS2 performs the following operation according to switching the jumper wire (J13) shorted or open. In case of pulse input, the pulse width is 500ms or larger. ① J13 − Shorted ON (Shorted) ON (Open) ON (Shorted) Demand control Normal Normal CnS2 input PUSH...
  • Page 30 (3) Outdoor fan snow protection control (Master unit/Slave unit) (Note) Following explanation is based on setting function with 7-segment display [C75]. However the following terminals and 7-segment function settings are available to use. CnS1: [P11]-[5] CnS2: [P12]-[5] CnG1: [P13]-[5] CnG2: [P14]-[5] The setting of this control should be done not only on the master unit but also on the slave unit, because the fans of master unit and the slave unit are controlled independently.
  • Page 31 (6) Operation and error signal output (Master unit/Slave unit) This is the function to retrieve and display the operation and error information on the outdoor unit as a batch.. Although indoor units also have the function to retrieve the operation and error information, this function is designed to retrieve the whole information of each refrigeration system connected to the outdoor unit.
  • Page 32 (7) Pump down control (Master unit/slave unit) This control is for recovering refrigerrant to outdoor unit quickly in case of replacement or relocation of the outdoor unit. This control is performed from the master unit side. It cannot be controlled from the slave unit side. If this control is at- tempted from the slave unit side, the following codes are displayed on the 7-segment LED of the slave unit.
  • Page 33 (C) Data output (1) 7-segment display and operation data retention (a) 7-segment display Operation information is displayed for checking various operation data during test run and for helping malfunction diag- nosis at servicing. Input data to microcomputer, contents of outdoor unit control, registration information of indoor units and etc.
  • Page 34 (iii) Error code displayed at error occurrence can be reset with the dip switch SW3-1 ON. (iv) Discharge pressure saturated temperature and suction pressure saturated temperature are displayed after rounding to unit, if it is -10.0°C or lower. (Because the 7-segment display range is 3-digit) (v) Priority of display 1) [EXX] >...
  • Page 35 (b) 7-Segment display Code Data display Minimum Contents of display Remarks range units Unusual code Pump down PoE, PoS Ð − − Check mode CH?, PCL? Outdoor unit setup, piping cleaning OPE?? CM1 operating frequency 0~130 CM2 operating frequency 0~130 L,-20~43 Tho-A Outdoor air temp.
  • Page 36 Code Data display Minimum Contents of display Remarks range units FM02 Number of rotations 0~1500 10 min PSH High pressure sensor 0~5.00 0.01MPa PSL Low pressure sensor 0~2.00 0.01MPa Order of 100 : FMC1, 2 FMC1, 2 Cooling fan Order of 10 : CH1 −...
  • Page 37 Code Data display Minimum Contents of display Remarks range units 0~655 100h Compressor cumulative operating time (CM2) -50~70 0.1ºC 1ºC at -10 or lower Discharge pressure saturation temperature 1ºC at -10 or lower Air inlet pressure saturation temperature -50~30 0.1ºC 0.00~2.00 0.01MPa Target cooling low pressure...
  • Page 38 Code Data display Minimum Contents of display Remarks range units Counter · Anomalous low pressure ② — (Immediately after starting) Counter · Anomalous low pressure ③ — (Under operation) Counter · Synchronous failure compressor 1 — — Counter · Overheating of power transistor 1 —...
  • Page 39 Code Data display Minimum Contents of display Remarks range units Auto address setting on Indoor unit address No. assignment normal ending Indoor unit address No. assignment error 1 Indoor unit address No. assignment error 2 Indoor unit address No. assignment error 3 Super Link setting error...
  • Page 40 (c) Saving of Operation Data For the purpose to investigate the cause of trouble in the field, the operation data are always saved in the memory, and if the trouble occurs, the data writing is stopped and the operation data prior to the trouble occurrence are recorded. These data can be retrieved to personal computer through RS232C connector on the outdoor control PCB and utilized for probing the cause.
  • Page 41 Record data Code Write-in contents Data write-in Number of Write-in unit Contents range bytes Tho-P2 Power transistor temp. (Heat dissipation fin) 20~140 A/D value Tho-SC Sub cooling coil temp. 1 18~73 A/D value Liquid pipe side Suction pipe side Tho-H Sub cooling coil temp. 2 -35~75 A/D value Tho-S Suction pipe temp.
  • Page 42 Record data Code Write-in contents Data write-in Number of Write-in unit Contents range bytes 0~255 Inverter CM2 operation frequency Answer Hz total 0~65535 Compressor 1 cumulative operating time (estimate) 0~65535 Compressor 2 cumulative operating time (estimate) 0~65535 Compressor 1 start times 0~65535 20 times Compressor 2 start times...
  • Page 43 Record data Code Write-in contents Data write-in Number of Write-in unit Contents range bytes None Defrosting status 1 Control status defrost status — Defrosting status 2 Defrosting status 3 Defrosting status 4 Defrosting status 5 Defrosting status 6 Defrosting status 7 None Frequency down Control status Td...
  • Page 44 Record data Code Write-in contents Data write-in Number of Write-in unit Contents range bytes Communications anomaly counter (INV1) — Control status Current cut anomaly counter (INV2) Control status — Power transistor overheating anomaly counter (INV2) — Control status Synchronous failure counter (INV2) Control status —...
  • Page 45 Record data Code Write-in contents Data write-in Number of Write-in unit Contents range bytes Return oil loss amount CM1 0~65535 0~65535 Return oil loss amount CM2 Oil return cumulative time 0~255 × 3 min. Equal oil cumulative Hz master CM1 0~65535 Equal oil cumulative Hz master CM2 0~65535...
  • Page 46 (2) Outdoor PCB setting Code Input Remarks Outdoor address No. (Order of 10) Outdoor address No. (Order of 1) Inspection LTD reset Normal�/reset SW3-1 SW3-2 Auto backup operation None�/With Refrigerant quantity check Normal�/Check SW3-4 SW3-5 Check operation Normal�/Check Forced heating/cooling Normal/Forced heating-cooling SW3-7 Test run SW...

  • Page 47: Basics Of Troubleshooting

    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 48: Explanation Of Troubleshooting

    2.2 Explanation of troubleshooting (a) Checking DC15V on the control PCB (Step to check if the inverter PCB fails or not) Use this to diagnose E41, E42, E45 and E48. Power OFF (Power supply circuit breaker OFF) Fan motor check *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 49: Contents Of Troubleshooting

    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 – Outdoor unit signal line error Address pairing setting error –...
  • Page 50 (b) Troubleshooting Green Error code Content Keeps flashing Stays Off None Operates but does not cool Indoor 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 51 Green Error code Content Keeps flashing Stays Off None Operates but does not heat Indoor 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 52 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 53 Green Error code Content – – None Excessive noise/vibration (1/3) Indoor 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 54 Green Error code Content – – None Excessive noise/vibration (2/3) Indoor 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 55 Green Error code Content – – None Excessive noise/vibration (3/3) Indoor 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 performed...
  • Page 56 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 57 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 time 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 58 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 59 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 60 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 61 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 62 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 63 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 64 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 65 Green Content Error code Stays Off Stays Off Indoor Remote controller: [No display] [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 66 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 67 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 68 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 69 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 70 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 71 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 72 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 73 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 74: Address Setting Error

    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 75 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 76 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 77 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 78 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 79 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 80 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 on or...
  • Page 81 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 82 Green Discharge pipe temperature Content Error code Keeps flashing Stays Off Indoor Remote controller: error (Tho-D1, D2) E36-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E36-1: Tho-D1, E36-2: Tho-D2 *2 E36-1: 1 time flash, E36-2: 2 time flash 5. Troubleshooting 1.

  • Page 83: Outdoor Units

    Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Liquid flooding anomaly E36-3 7-segment display: Keeps flashing 3 time 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 84 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, 3, 4, 5, 6*1 7-segment display: Keeps flashing Outdoor *1 E37-1: one time flash (Tho-R1), E37-2: 2 time flash (Tho-R2), E37-3: 3 time flash (Tho-R3), E37-4: 4 time flash (Tho-R4), E37-5: 5 time flash (Tho-SC), E37-6: 6 time flash (Tho-H) 5.
  • Page 85 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 86 Green Content Error code Discharge pipe temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-D1, D2) E39-1, 2 7-segment display: Keeps flashing Outdoor *1 E39-1: Tho-D1, E39-2: Tho-D2, *2 E39-1: 1 time flash, E39-2: 2 time flash 5. Troubleshooting 1.
  • Page 87 Green High pressure anomaly Content Error code Keeps flashing Stays Off Indoor Remote controller: (63H1-1, 2 activated) 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...
  • Page 88 Green Content Error code Keeps flashing Stays Off E41(E51) Indoor Remote controller: Power transistor overheat E41(E51)-1, 2*1 7-segment display: Keeps flashing Outdoor *1 E41-1 (E51-1) : CM1, E41-2 (E51-2) : CM2 *2 E41-1 (E51-1) : 1 time flash, E41-2 (E51-2) : 2 time flash 5.
  • Page 89 Green Content Error code Keeps flashing Stays Off Indoor Remote controller: Current cut (CM1, CM2) E42-1, 2* 7-segment display: Keeps flashing Outdoor *1 E42-1: CM1, E42-2: CM2 *2 E42-1: 1 time flash, E42-2: 2 time flash 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure...
  • Page 90 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 connection 5.
  • Page 91 Green Content Error code Communication error between Keeps flashing Stays Off Indoor Remote controller: inverter PCB and outdoor control PCB E45-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E45-1: INV1, E45-2: INVI *2 E45-1: 1 time flash, E45-2: 2 time flash 5.
  • Page 92 Green Error code Content 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 93 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 94 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 95 Green Content Error code Suction pipe temperature thermistor anomaly (Tho-S), Keeps flashing Stays Off E53/E55*1 Indoor Remote controller: E53/E55-1, 2 Under-dome temperature thermistor anomaly (Tho-C1, C2) 7-segment display: Keeps flashing Outdoor *1 E55-1 : Tho-C1, E55-2: Tho-C2 *2 E53 : E53·E55-1 time flash, E55-2: 2 time flash 5.
  • Page 96 Green Content Error code High pressure sensor anomaly (PSH) Keeps flashing Stays Off Indoor Remote controller: Low pressure sensor anomaly (PSL) E54-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E54-1: 1 time flash (PSL), E54-2 : 2 time flash (PSH) 5.
  • Page 97 Green Content Error code Power transitor temperature Keeps flashing Stays Off Indoor Remote controller: thermistor anomaly (Tho-P1, P2) E56-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E56-1/1 time flash:Tho-P1 anomaly, E56-2/2 time flash: Tho-P2 anomaly 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure...
  • Page 98 Green Content Error code Anomalous compressor Keeps flashing Stays Off Indoor Remote controller: by loss of synchronism 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 99: Compressor Startup

    Green Compressor startup Content Error code Keeps flashing Stays Off Indoor Remote controller: failure (CM1,CM2) E59-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E59-1: CM1, E59-2: CM2 *2 E59-1: 1 time flash, E59-2: 2 time flash 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure...
  • Page 100 Green Content Error code Rotor position detection failure Keeps flashing Stays Off Indoor Remote controller: (CM1, CM2) E60-1, 2 *1 7-segment display: Keeps flashing Outdoor *1 E60-1 : CM1, E60-2 : CM2 *2 E60-1 : 1 time flash E60-2 : 2 time flash 5.
  • Page 101 Green Content Error code Communications error between Keeps flashing Stays Off Indoor Remote controller: the master unit and slave units 7-segment display: Keeps flashing 1 time flash Outdoor 5. Troubleshooting 1. Applicable model Outdoor unit Diagnosis Countermeasure Is the address setting of master Corrent.

  • Page 102: Emergency Stop

    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 103: Precautions For Safety

    2.4 Outdoor unit control PCB replacement procedure PCB012D017B 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 105: Inverter Pcb Replacement Procedure

    2.5 Inverter PCB replacement procedure pcb012d018ab Exchange the inverter pwb according to the following procedure. 1. Exchange the pwb after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) of two places (1. Power supply for pwb 2. Power supply for fan motor) and check that the voltage is discharged sufficiently.
  • Page 106 Table. 1 Switch Setting JSW11 Model JSW10 INV1 ↑ OFF ON OFF OFF All models INV2 ↑ OFF ON OFF ON...
  • Page 107 I Function of Dip switch for control (SW3, 4, 5) • SW3 (Function setting) • SW5 (Function setting) ON/OFF Function Switch Function Test run switch test run Inspection LED reset SW5-1 SW3-1 Test run switch Normal OFF Normal Test run operation mode Cooling SW5-2 Auto Test run operation mode Heating...
  • Page 108 ●DIP Switch setting list (1) Outdoor unit (a) Control PCB Switches Description Default setting Remarks Outdoor address No. (Order of 10) Outdoor address No. (Order of 1) Inspection LED reset Normal*/Reset Normal SW3-1 Automatic backup operation Normal*/Backup Normal SW3-2 SW3-3 Reserved Keep OFF SW3-4...
  • Page 109  Function of Connection (1) Control PCB input (2) Ountrol PCB input Mark Connector Function Mark Connecter Function Tho-A CNTH Outdoor air thermistor 52X1 CNM1 Solenoid value for CM1 Tho-R1 CNTH Heat exchanger thermistor (exhaust) 52X2 CNM2 Solenoid value for CM2 Tho-R2 CNB2 Heat exchanger thermistor (exhaust) CNN1...
  • Page 119 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   ...
  • Page 133 Notes (1) Preset point of protective deviees ThI-R1, R2 : Heating operation : Indoor fan control. 63H1-1 : Open 4.15MPa, Close 3.15MPa Cooling operation : Frost prevention control. (For protection) Super heat control. (2) Function of thermistor ThI-R3 : For super heat control of cooling operation. PSH : For compressor control Tho-D :...

  • Page 134: Electrical Wiring

    5 APPLICACTION DATA INSTALLATION MANUAL FOR CEILING CASSETTE PJF012D007 -4WAY- TYPE (FDT) 5.1 Installation of indoor unit 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 135: A) Ceiling Cassette-4 Way Type (Fdt)

    (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 136: Outdoor Unit

    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 137 ⑧Panel installation ⑥Drain pipe (continued) ●Attach the panel on the indoor unit after electrical wiring work. Drain test ●Refer to attached manual for panel installation for details. (See next page) ●　 After installation of drain pipe, make sure that drain system work in good condition and no rmful and water leakage from joint and drain pan.

  • Page 140: B) Ceiling Cassette-4 Way Compact Type (Fdtc)

    (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...
  • Page 141 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 142 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 145: C) Ceiling Cassette-2 Way Type (Fdtw)

    (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 146 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 147 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 148: D) Ceiling Cassette-1 Way Type (Fdts)

    (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 149 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 150 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 151: E) Ceiling Cassette-1 Way Compact Type (Fdtq)

    (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...
  • Page 152 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 153 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 154: F) Duct Connected-High Static Pressure Type (Fdu)

    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 155 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 156: Piping System

    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 157 (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 158 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 159 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 160: G) Duct Connected-Middle Static Pressure Type (Fdum)

    (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.
  • Page 161 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 162 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 163: H) Duct Connected (Ultra Thin)-Low Static Pressure Type (Fdqs)

    (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 164 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 165 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 166: I) Wall Mounted Type (Fdk)

    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 167 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 168 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 169: J) Ceiling Suspended Type (Fde)

    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 170 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 171 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 172: K) Floor Standing (With Casing) Type (Fdfl)

    (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 ...
  • Page 173 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 174 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 175: L) Floor Standing (Without Casing) Type (Fdfu)

    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...
  • Page 176 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 177 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 178: M) Duct Connected-Compact And Flexible Type (Fduh)

    (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...
  • Page 179 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- ●...
  • Page 180 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 181: Electric Wiring Work Instruction

    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 182 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 183 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 184 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 185: Initial Settings

    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 186 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 187 Connect the remote controller cord Installation manual for wired remote controller 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...
  • Page 188 Connect the remote controller cord to the Sheath remote controller 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 189 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 190 The functional setting Refer to page 180 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 191: Installation Of Outdoor Unit

    5.4 Installation of outdoor unit...
  • Page 192 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 209 7-2. Selection of controls Controls of outdoor unit may be selected as follows using the dip switches on the PCB and C○○, P○○ on the 7-segment. To change C○○, 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). Control selecting method Content of control Unit set※1...
  • Page 213 Backup operetion function is only for emergency purpose when one of compressors or one of units is damaged. If backup operation is performed continuously for long period, it may cause the damage of good compressors. Accordingly be sure to repair the damaged unit or to replace the damaged compressor and to cancel the backup operation within 48 hours after starting backup operation.

  • Page 214: Instructions For Installing The Branch Pipe Set

    5.5 Instructions for installing the branch pipe set PSB012D855B P−9 P−9 DIS-540-2 P−15 P−15...
  • Page 215 (model type DIS) (model type HEAD)
  • Page 218 INVERTER DRIVEN MULTI-INDOOR-UNIT CLIMATE CONTROL SYSTEM Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. updated April 08, 2009 updated May 11, 2009...

This manual is also suitable for:

Fdt45kxe6aFdt56kxe6aFdt90kxe6aFdt112kxe6aFdtc28kxe6aFdtc22kxe6a ... Show all

Table of Contents