Daikin MKS-T Series Service Manual
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Daikin MKS-T Series Service Manual

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Service
Manual
Multi-Split Type Air Conditioners
MKS-T, MKB-T Series
SiSG121917E
[Applied Models]
 Inverter Multi : Cooling Only

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Summary of Contents for Daikin MKS-T Series

  • Page 1 SiSG121917E Service Manual Multi-Split Type Air Conditioners MKS-T, MKB-T Series [Applied Models]  Inverter Multi : Cooling Only...

  • Page 2: Table Of Contents

    SiSG121917E Introduction ..................1 1. Safety Cautions..................2 1.1 Warnings and Cautions Regarding Safety of Workers......2 1.2 Warnings and Cautions Regarding Safety of Users.........4 2. Icons Used ....................6 3. Revision History ..................7 Part 1 General Information ............8 1. Applicable Models ...................9 2.
  • Page 3 SiSG121917E 1.9 ECONO Operation ................51 1.10 HOME LEAVE Operation ...............51 1.11 INTELLIGENT EYE Operation ...............53 1.12 POWERFUL Operation ................54 1.13 Clock Setting ..................55 1.14 WEEKLY TIMER Operation ..............57 1.15 Other Functions..................63 2. MSP Duct Type Functions ..............64 2.1 Drain Pump Control................64 2.2 Thermostat Sensor in Wired Remote Controller ........66 2.3 Freeze Prevention Control ..............67 2.4 Clock and Calendar Setting..............68...
  • Page 4 SiSG121917E 5.3 Indoor Fan Motor or Related Abnormality ..........119 5.4 Thermistor or Related Abnormality (Indoor Unit)........123 5.5 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)..124 5.6 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) .....126 6. Troubleshooting for MSP Duct Type Indoor Unit ........127 6.1 Indoor Unit PCB Abnormality ...............127 6.2 Drain Water Level Control System Abnormality ........128 6.3 Indoor Fan Motor or Related Abnormality ..........129...
  • Page 5 SiSG121917E 8.12 Main Circuit Short Check..............177 8.13 Capacitor Voltage Check..............178 8.14 Power Module Check ................179 Part 7 Trial Operation and Field Settings ........181 1. Pump Down Operation................182 2. Forced Cooling Operation ..............183 3. Wiring Error Check Function ...............185 4. Trial Operation ..................187 4.1 Indoor Unit....................187 4.2 Outdoor Unit ..................189 5.

  • Page 6: Introduction

    SiSG121917E Introduction 1. Safety Cautions..................2 1.1 Warnings and Cautions Regarding Safety of Workers......2 1.2 Warnings and Cautions Regarding Safety of Users.........4 2. Icons Used ....................6 3. Revision History ..................7 Introduction...

  • Page 7: Safety Cautions

    SiSG121917E Safety Cautions 1. Safety Cautions Be sure to read the following safety cautions before conducting repair work. After the repair work is complete, be sure to conduct a test operation to ensure that the equipment operates normally, and explain the cautions for operating the product to the customer.
  • Page 8 Safety Cautions SiSG121917E Warning Do not turn the air conditioner on or off by plugging in or unplugging the power cable. Plugging in or unplugging the power cable to operate the equipment may cause an electrical shock or fire. Be sure to wear a safety helmet, gloves, and a safety belt when working in a high place (more than 2 m).

  • Page 9: Warnings And Cautions Regarding Safety Of Users

    SiSG121917E Safety Cautions Warnings and Cautions Regarding Safety of Users Warning Do not store the equipment in a room with fire sources (e.g., naked flames, gas appliances, electric heaters). Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work.
  • Page 10 Safety Cautions SiSG121917E Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely. If the plug is dusty or has a loose connection, it may cause an electrical shock or fire.

  • Page 11: Icons Used

    SiSG121917E Icons Used 2. Icons Used The following icons are used to attract the attention of the reader to specific information. Icon Type of Description Information Warning Warning is used when there is danger of personal injury. Warning Caution Caution is used when there is danger that the reader, Caution through incorrect manipulation, may damage equipment, lose data, get an unexpected result or have to restart (part...

  • Page 12: Revision History

    Revision History SiSG121917E 3. Revision History Month/Year Version Revised contents 09 / 2019 SiSG121917E First edition Introduction...

  • Page 13: Part 1 General Information

    SiSG121917E Part 1 General Information 1. Applicable Models ...................9 2. Functions....................10 2.1 Indoor Unit....................10 2.2 Outdoor Unit ...................14 Part 1 General Information...

  • Page 14: Applicable Models

    Applicable Models SiSG121917E 1. Applicable Models Indoor Unit CTKS25TVMG CTKB25TVMG FDKS25EAVMB FDMR50TVMG CTKS35TVMG CTKB35TVMG FDKS35EAVMB FDMR60TVMG CTKS50TVMG CTKB50TVMG FDKS25CAVMB FDMR71TVMG CTKS60TVMG CTKB60TVMG FDKS35CAVMB CTKS71TVMG FDKS50CVMB FDKS60CVMB Outdoor Unit MKS50TVMG MKB50TVMG MKS65TVMG MKB65TVMG MKS80TVMG MKS90TVMG Part 1 General Information...

  • Page 15: Functions

    SiSG121917E Functions 2. Functions Indoor Unit Category Functions Category Functions Basic Functions Inverter (with inverter power control) Health & Dust collection filter (PM2.5) Cleanliness Operation limit for cooling — — Titanium apatite deodorizing filter (option) Operation limit for heating — —...
  • Page 16 Functions SiSG121917E Category Functions Category Functions Basic Functions Inverter (with inverter power control) Health & Dust collection filter (PM2.5) Cleanliness Operation limit for cooling — — Titanium apatite deodorizing filter (option) Operation limit for heating — — PAM control — —...
  • Page 17 SiSG121917E Functions Category Functions Category Functions Basic Functions Inverter (with inverter power control) Health & Dust collection filter (PM2.5) — — Cleanliness Operation limit for cooling — — Titanium apatite deodorizing filter — — Operation limit for heating — — Mould proof air filter PAM control —...
  • Page 18 Functions SiSG121917E Category Functions Category Functions Basic Functions Inverter (with inverter power control) Health & Dust collection filter (PM2.5) — — Cleanliness Operation limit for cooling — — Titanium apatite deodorizing filter — — Operation limit for heating — — Silver ion anti-bacterial drain pan PAM control —...

  • Page 19: Outdoor Unit

    SiSG121917E Functions Outdoor Unit Category Functions Category Functions Basic Functions Inverter (with inverter power control) Health & Titanium apatite deodorizing filter — Cleanliness Dust collection filter (PM2.5) — Refer to Operation limit for cooling P. 218 Mould proof air filter —...
  • Page 20 Functions SiSG121917E Category Functions Category Functions Basic Functions Inverter (with inverter power control) Health & Titanium apatite deodorizing filter — Cleanliness Dust collection filter (PM2.5) — Refer to Operation limit for cooling P. 218 Mould proof air filter — Operation limit for heating —...

  • Page 21: Part 2 Specifications

    SiSG121917E Part 2 Specifications 1. Indoor Unit.....................17 1.1 Wall Mounted Type ................17 1.2 LSP Duct Connected Type..............20 1.3 MSP Duct Connected Type..............22 2. Outdoor Unit..................23 Part 2 Specifications...

  • Page 22: Indoor Unit

    Indoor Unit SiSG121917E 1. Indoor Unit Wall Mounted Type 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model CTKS25TVMG CTKS35TVMG Capacity 2.5 kW Class 3.5 kW Class Front Panel Colour White White 10.8 (381) 11.8 (417) 9.7 (343) 9.5 (335)
  • Page 23 SiSG121917E Indoor Unit 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model CTKS71TVMG Capacity 7.1 kW Class Front Panel Colour White 20.8 (734) 17.3 (611) m³/min Airflow Rates (cfm) 15.7 (554) 12.1 (427) Type Cross Flow Fan Motor Output...
  • Page 24 Indoor Unit SiSG121917E 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model CTKB25TVMG CTKB35TVMG Capacity 2.5 kW Class 3.5 kW Class Front Panel Colour White White 10.8 (381) 11.8 (417) 9.7 (343) 9.5 (335) m³/min Airflow Rates (cfm)

  • Page 25: Lsp Duct Connected Type

    SiSG121917E Indoor Unit LSP Duct Connected Type 50 Hz, 230V Model FDKS25EAVMB FDKS35EAVMB Rated Capacity 2.5 kW Class 3.5 kW Class 8.7 (307) 8.7 (307) 8.0 (282) 8.0 (282) m³/min Airflow Rates (cfm) 7.3 (258) 7.3 (258) 6.2 (219) 6.2 (219) Type Sirocco Fan Sirocco Fan...
  • Page 26 Indoor Unit SiSG121917E 50 Hz, 230 V Model FDKS50CVMB FDKS60CVMB Rated Capacity 5.0 kW Class 6.0 kW Class 12.0 (424) 16.0 (565) 11.0 (388) 14.8 (523) m³/min Airflow Rates (cfm) 10.0 (353) 13.5 (477) 8.4 (297) 11.2 (395) Type Sirocco Fan Sirocco Fan Motor Output Speed...

  • Page 27: Msp Duct Connected Type

    SiSG121917E Indoor Unit MSP Duct Connected Type 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model FDMR50TVMG FDMR60TVMG Capacity 5.0 kW Class 6.0 kW Class Casing Colour — — Type Cross fin coil Cross fin coil Coil Row ×...

  • Page 28: Outdoor Unit

    Outdoor Unit SiSG121917E 2. Outdoor Unit 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model MKS50TVMG MKS65TVMG Capacity — — Power Consumption — — Running Current — — Casing Colour Ivory White Ivory White Heat Exchanger WF Fin φ...
  • Page 29 SiSG121917E Outdoor Unit 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model MKS80TVMG MKS90TVMG Capacity — — Power Consumption — — Running Current — — Casing Colour Ivory White Ivory White Heat Exchanger WF Fin φ...
  • Page 30 Outdoor Unit SiSG121917E 50 Hz, 220 - 230 - 240 V / 60 Hz, 220 - 230 V Model MKB50TVMG MKB65TVMG Capacity — — Power Consumption — — Running Current — — Casing Colour Ivory White Ivory White Heat Exchanger WF Fin φ...

  • Page 31: Part 3 Printed Circuit Board Connector Wiring Diagram

    SiSG121917E Part 3 Printed Circuit Board Connector Wiring Diagram 1. Indoor Unit.....................27 1.1 CTKS25/35/50TVMG, CTKB25/35/50TVMG .........27 1.2 CTKS60/71TVMG, CTKB60TVMG ............29 1.3 FDKS25/35EAVMB, FDKS25/35CAVMB, FDKS50/60CVMB....32 1.4 FDMR50/60/71TVMG................34 2. Wireless Remote Controller Receiver ...........36 2.1 BRC086A2R1 for FDMR Series .............36 3. Wired Remote Controller...............37 3.1 BRC1E63 for FDMR Series..............37 4.

  • Page 32: Indoor Unit

    Indoor Unit SiSG121917E 1. Indoor Unit CTKS25/35/50TVMG, CTKB25/35/50TVMG Control PCB Connector for swing motor (horizontal blade) (A1P/PCB1) Connector for swing motor (vertical blade) Connector for display/signal receiver PCB (A2P), INTELLIGENT EYE sensor PCB (A3P) Connector for indoor heat exchanger thermistor (R2T) S200 Connector for DC fan motor S403...
  • Page 33 SiSG121917E Indoor Unit Display/Signal Connector for control PCB (A1P) Receiver PCB Indoor unit ON/OFF switch (A2P/PCB2) (BS1/S1W) LED1 (H1P) LED for operation (green) LED2 (H2P) LED for timer (yellow) LED3 (H3P) LED for INTELLIGENT EYE (green) RTH1 (R1T) Room temperature thermistor LED3 LED2 LED1 (Solder side)

  • Page 34: Ctks60/71Tvmg, Ctkb60Tvmg

    Indoor Unit SiSG121917E CTKS60/71TVMG, CTKB60TVMG Control PCB Connector for INTELLIGENT EYE sensor PCB (A4P) (A2P/PCB2) Connector for swing motor (horizontal blade) Connector for swing motor (vertical blade) Connector for display/signal receiver PCB (A3P) Connector for indoor heat exchanger thermistor S200 Connector for DC fan motor S403 Connector for adaptor PCB...
  • Page 35 SiSG121917E Indoor Unit Filter PCB S100 Connector for terminal strip (A1P/PCB1) S800 Connector for control PCB (A2P) FG, HE Connector for earth wire FU1 (F1U) Fuse (3.15 A, 250 V) V2 (R2V) Varistor S800 S100 3P406709-1 Display/Signal Connector for control PCB (A2P) Receiver PCB Indoor unit ON/OFF switch (A3P/PCB3)
  • Page 36 Indoor Unit SiSG121917E INTELLIGENT Connector for control PCB (A2P) EYE Sensor PCB (A4P/PCB4) 3P227885-1 Part 3 Printed Circuit Board Connector Wiring Diagram...

  • Page 37: Fdks25/35Eavmb, Fdks25/35Cavmb, Fdks50/60Cvmb

    SiSG121917E Indoor Unit FDKS25/35EAVMB, FDKS25/35CAVMB, FDKS50/60CVMB Control PCB Connector for AC fan motor (PCB1) Connector for AC fan motor (Hall IC) Connector for centralized control (HA) Connector for display/signal receiver PCB (PCB2) Connector for indoor heat exchanger thermistor (R2T) H1, H2, H3 Connector for terminal block Connector for terminal block (earth) Address setting jumper...
  • Page 38 Indoor Unit SiSG121917E Display/Signal Connector for control PCB (PCB1) Receiver PCB SW1 (S1W) Indoor unit ON/OFF switch (PCB2) LED1 (H1P) LED for option (red) LED2 (H2P) LED for timer (yellow) LED3 (H3P) LED for operation (green) RTH1 Room temperature thermistor LED3 LED2 RTH1...

  • Page 39: Fdmr50/60/71Tvmg

    SiSG121917E Indoor Unit FDMR50/60/71TVMG Control PCB X15A Connector for float switch (A1P) X16A Connector for suction air thermistor X17A, X18A Connector for indoor heat exchanger thermistor X25A Connector for drain pump motor X27A Connector for terminal block (for power supply) X28A Connector for power supply wiring for option X30A...
  • Page 40 Indoor Unit SiSG121917E Indoor Fan PCB Connector for control PCB (A1P) (A2P) Connector for reactor Connector for indoor fan motor X10A Connector for terminal block (for power supply) FU2 (F2U) Fuse (5 A, 250 V) FU4 (F4U) Fuse (6.3 A, 250 V) LED for service monitor (green) X10A 2P442228-17...

  • Page 41: Wireless Remote Controller Receiver

    SiSG121917E Wireless Remote Controller Receiver 2. Wireless Remote Controller Receiver BRC086A2R1 for FDMR Series Display/Signal MAIN/SUB setting switch Receiver PCB Refer to page 198 for details. Address setting switch Refer to page 198 for details. P1, P2 Terminal for indoor unit control PCB (A1P) 3P431101-1 Part 3 Printed Circuit Board Connector Wiring Diagram...

  • Page 42: Wired Remote Controller

    Wired Remote Controller SiSG121917E 3. Wired Remote Controller BRC1E63 for FDMR Series Wired Remote 1) P1, P2 Terminal for indoor unit Controller PCB 2) R1T Room temperature thermistor 2P298037-11 Part 3 Printed Circuit Board Connector Wiring Diagram...

  • Page 43: Outdoor Unit

    SiSG121917E Outdoor Unit 4. Outdoor Unit MKS50/65/80TVMG, MKB50/65TVMG Main PCB (PCB1) Connector for terminal block (indoor - outdoor transmission) S20 (white) Connector for electronic expansion valve coil A port S21 (red) Connector for electronic expansion valve coil B port S22 (blue) Connector for electronic expansion valve coil C port S23 (yellow) Connector for electronic expansion valve coil D port (65/80 class...
  • Page 44 Outdoor Unit SiSG121917E Service Monitor S501, S502 Connector for main PCB (PCB1) PCB (PCB2) LED A LED for service monitor (green) LED1, LED2, LED for service monitor (red) LED3, LED4, LED5 Forced cooling operation ON/OFF switch Refer to page 183 for details. Operation mode switch Refer to page 183 for details.

  • Page 45: Mks90Tvmg

    SiSG121917E Outdoor Unit MKS90TVMG Main PCB (PCB1) Connector for terminal block (indoor - outdoor transmission) S20 (white) Connector for electronic expansion valve coil A port S21 (red) Connector for electronic expansion valve coil B port S22 (blue) Connector for electronic expansion valve coil C port S23 (yellow) Connector for electronic expansion valve coil D port S24 (white)
  • Page 46 Outdoor Unit SiSG121917E Inverter PCB Connector for outdoor fan motor (PCB2) S401, S411 Connector for main PCB (PCB1) HL402, HN402 Connector for main PCB (PCB1) DCP2, DCM2 Connector for main PCB (PCB1) Fuse (3.15 A, 250 V) U, V, W Connector for compressor DCP2 DCM2...
  • Page 47 SiSG121917E Outdoor Unit Service Monitor S501, S502, S503 Connector for main PCB (PCB1) PCB (PCB3) LED A LED for service monitor (green) LED1, LED2, LED for service monitor (red) LED3, LED4, LED5 Forced cooling operation ON/OFF switch Refer to page 183 for details. Operation mode switch Refer to page 183 for details.

  • Page 48: Adaptor

    Adaptor SiSG121917E 5. Adaptor BRP072C42 Wireless LAN Adaptor Wireless LAN Connector Connector for adaptor PCB Adaptor PCB Connector 3P466519-1 Notes Standard accessory for CTKS series, optional for CTKB series. BRP067A42/BRP980B42 Remote Control PC-board Set Adaptor PCB Connector for wireless LAN adaptor PCB S601, S602 Connector for [S403] on indoor unit control PCB S602...

  • Page 49: Part 4 Functions And Control

    SiSG121917E Part 4 Functions and Control 1. Wall Mounted and LSP Duct Type Functions ........45 1.1 Temperature Control ................45 1.2 Frequency Principle................45 1.3 Airflow Direction Control.................47 1.4 COMFORT AIRFLOW Operation ............48 1.5 Fan Speed Control for Indoor Unit ............48 1.6 Program Dry Operation ................49 1.7 Thermostat Control.................50 1.8 NIGHT SET Mode ..................50 1.9 ECONO Operation ................51...

  • Page 50: Wall Mounted And Lsp Duct Type Functions

    Wall Mounted and LSP Duct Type Functions SiSG121917E 1. Wall Mounted and LSP Duct Type Functions Temperature Control Definitions of The definitions of temperatures are classified as following. Temperatures  Room temperature: temperature of lower part of the room  Set temperature: temperature set by remote controller ...
  • Page 51 SiSG121917E Wall Mounted and LSP Duct Type Functions The following drawing shows a schematic view of the inverter principle: Refrigerant circulation rate (high) high speed Amount of heat Amount of heat exchanged air (large) exchanged air (large) high f low f Amount of heat Amount of heat exchanged air (small)

  • Page 52: Airflow Direction Control

    Wall Mounted and LSP Duct Type Functions SiSG121917E Airflow Direction Control Applicable CTKS25/35/50/60/71TVMG CTKB25/35/50/60TVMG Models Power-Airflow The large flap sends a large volume of air downward to the floor and provides an optimum (Dual) Flap(s) control in cooling and dry operation. Cooling/Dry During cooling or dry operation, the flap retracts into the indoor unit.

  • Page 53: Comfort Airflow Operation

    SiSG121917E Wall Mounted and LSP Duct Type Functions COMFORT AIRFLOW Operation Applicable CTKS25/35/50/60/71TVMG CTKB25/35/50/60TVMG Models Outline The flaps are controlled not to blow the air directly at the people in the room. The airflow will be in the upward direction while in cooling and dry operation, which will provide a comfortable wind that will not come in direct contact with people.

  • Page 54: Program Dry Operation

    Wall Mounted and LSP Duct Type Functions SiSG121917E FDKS Series Fan speed Room thermistor temperature – target temperature +2˚C +1.5˚C +1˚C +0.5˚C (R12390) Program Dry Operation Outline Program dry operation removes humidity while preventing the room temperature from lowering. Since the microcomputer controls both the temperature and airflow rate, the temperature adjustment and FAN setting buttons are inoperable.

  • Page 55: Thermostat Control

    SiSG121917E Wall Mounted and LSP Duct Type Functions Thermostat Control Outline Thermostat control is based on the difference between the room thermistor temperature and the target temperature. Details Thermostat OFF Condition  The temperature difference is in the zone A. Thermostat ON Conditions ...

  • Page 56: Econo Operation

    Wall Mounted and LSP Duct Type Functions SiSG121917E ECONO Operation Applicable CTKS25/35/50/60/71TVMG CTKB25/35/50/60TVMG Models Outline ECONO operation reduces the maximum operating current and the power consumption. This operation is particularly convenient for energy-saving. It is also a major bonus when breaker capacity does not allow the use of multiple electrical devices and air conditioners.
  • Page 57 SiSG121917E Wall Mounted and LSP Duct Type Functions 3. Function End The function ends when HOME LEAVE button is pressed again during HOME LEAVE operation or when POWERFUL button is pressed. Cooling HOME LEAVE operation HOME LEAVE operation set temp. Set temp.

  • Page 58: Intelligent Eye Operation

    Wall Mounted and LSP Duct Type Functions SiSG121917E 1.11 INTELLIGENT EYE Operation Applicable CTKS25/35/50/60/71TVMG CTKB50/60TVMG Models Outline This function detects the presence of humans in the room with a motion sensor and changes the operation to energy saving operation when there is nobody. Details 1.

  • Page 59: Powerful Operation

    SiSG121917E Wall Mounted and LSP Duct Type Functions  Application range is as follows. Horizontal Vertical angle 90° (Side view) angle 110° 55° 55° (Top view) 90° (R25176)  The sensor may not detect moving objects further than 7 m away. (Please see the application range) ...

  • Page 60: Clock Setting

    Wall Mounted and LSP Duct Type Functions SiSG121917E 1.13 Clock Setting ARC466 Series The clock can be set by taking the following steps: 1. Press Clock button.  is displayed, then MON and blink. 2. Press Select  or Select  button to set the clock to the current day of the week. 3.
  • Page 61 SiSG121917E Wall Mounted and LSP Duct Type Functions ARC433 Series The clock can be set by taking the following steps: 1. Press CLOCK button.  is displayed and blinks. 2. Press TIMER or TIMER button to adjust the clock to the present time. Holding down TIMER...

  • Page 62: Weekly Timer Operation

    Wall Mounted and LSP Duct Type Functions SiSG121917E 1.14 WEEKLY TIMER Operation Applicable CTKS25/35/50/60/71TVMG CTKB25/35/50/60TVMG Models Outline Up to 4 timer settings can be saved for each day of the week (up to 28 settings in total). The 3 items: ON/OFF, temperature, and time can be set. Details „...
  • Page 63 SiSG121917E Wall Mounted and LSP Duct Type Functions „ To use WEEKLY TIMER operation Setting mode • Make sure the day of the week and time are set. If not, set the day of the week and time. Program 1 Program 2 Program 3 Program 4...
  • Page 64 Wall Mounted and LSP Duct Type Functions SiSG121917E Press to select the desired time. • The time can be set between 0:00 and 23:50 in 10-minute intervals. • To return to the ON/OFF TIMER mode setting, press • Proceed to STEP when setting the OFF TIMER.
  • Page 65 SiSG121917E Wall Mounted and LSP Duct Type Functions Copy mode • A reservation made once can be copied to another day of the week. The whole reservation of the selected day of the week will be copied. Program 1 Program 2 Program 3 Program 4 [Monday]...
  • Page 66 Wall Mounted and LSP Duct Type Functions SiSG121917E „ Confirming a reservation • Setting Displays Normal Press • The day of the week and the reservation number of the current day will be displayed. Press to select the day of the week and the •...
  • Page 67 SiSG121917E Wall Mounted and LSP Duct Type Functions „ To delete a reservation An individual reservation Press • The day of the week and the reservation number will be displayed. Press to select the day of the week and the reservation number to be deleted.

  • Page 68: Other Functions

    Wall Mounted and LSP Duct Type Functions SiSG121917E 1.15 Other Functions 1.15.1 Signal Receiving Sign When the indoor unit receives a signal from the remote controller, the unit emits a signal receiving sound. 1.15.2 Indoor Unit ON/OFF Switch Indoor unit ON/OFF switch is provided on the display of the unit. ...

  • Page 69: Msp Duct Type Functions

    SiSG121917E MSP Duct Type Functions 2. MSP Duct Type Functions Drain Pump Control Normal Operation Float switch Thermostat (running) Error display Drain pump 5 min. (R24669)  The float switch is ON in normal operation.  When cooling operation starts (thermostat ON), the drain pump turns ON simultaneously. ...
  • Page 70 MSP Duct Type Functions SiSG121917E If Float Switch is ON with Thermostat OFF in Cooling Operation Float switch Thermostat (running) Error display Drain pump 5 min. 5 sec. (R24671)  When the float switch turns OFF, the drain pump turns ON simultaneously. ...

  • Page 71: Thermostat Sensor In Wired Remote Controller

    SiSG121917E MSP Duct Type Functions Thermostat Sensor in Wired Remote Controller Outline Temperature is controlled by both the thermostat sensor in wired remote controller and air suction thermostat in the indoor unit. This is however limited to when the field setting for the thermostat sensor in wired remote controller is set to Use.

  • Page 72: Freeze Prevention Control

    MSP Duct Type Functions SiSG121917E Freeze Prevention Control Outline When the temperature detected by liquid pipe thermistor (R2T) of the indoor heat exchanger drops too low, the unit enters freeze prevention control in accordance with the following conditions, and is also set in accordance with the conditions given below. Details Conditions for starting: Temperature is –1°C or less for total of 40 min., or temperature is –5°C or less for total of 10 min.

  • Page 73: Clock And Calendar Setting

    SiSG121917E MSP Duct Type Functions Clock and Calendar Setting BRC1E63  Date and Time Setting Operation • Press the Menu/Enter button and display the Clock & Calendar Clock & Calendar screen. Date & Time 12H/24H Clock • Press “ ” buttons to select Date &...
  • Page 74 MSP Duct Type Functions SiSG121917E  12H/24H Clock Setting Operation • Display the Clock & Calendar screen. Clock & Calendar Date & Time • Press “ ” buttons to select 12H/24H Clock 12H/24H Clock Press Menu/Enter button to display the 12H/24H Clock screen.

  • Page 75: Schedule Timer Operation

    SiSG121917E MSP Duct Type Functions Schedule Timer Operation Outline With BRC1E63 Remote Controller You can select when the operation starts and/or stops for each day of the week. Up to 5 actions can be set for each day. It is possible to program up to 3 different schedules. The schedule timer will be disabled for days that have been set as a holiday.
  • Page 76 MSP Duct Type Functions SiSG121917E  Holidays The schedule timer will be disabled for days that have been set as holiday. Operation • Press the Menu/Enter button and display the Schedule Schedule screen. Enable/Disable Schedule nr set • Press “ ”...
  • Page 77 SiSG121917E MSP Duct Type Functions  Schedule Settings Operation • Press the Menu/Enter button and display the Schedule Schedule screen. Enable/Disable Schedule nr set • Press “ ” buttons to select Settings Holidays Settings Press Menu/Enter button to display the Schedule screen.
  • Page 78 MSP Duct Type Functions SiSG121917E A maximum of 5 actions per day can be Schedule nr 1 Time Cool Heat set. – 6 :00 ON 28°C 21°C – 8 :00 OFF 35°C 10°C 1 7 :30 ON 28°C 21°C • Press the Menu/Enter button when settings for :00 –...

  • Page 79: Other Functions

    SiSG121917E MSP Duct Type Functions Other Functions 2.6.1 Signal Receiving Sign When the indoor unit receives a signal from the remote controller, the unit emits a signal receiving sound. 2.6.2 Emergency Operation Switch When the remote controller does not work due to battery failure or the absence thereof, use the emergency operation switch on the receiver of the indoor unit.

  • Page 80: Thermistor Functions

    Thermistor Functions SiSG121917E 3. Thermistor Functions The illustrations are for 5-room models as representative and have 5 lines (A ~ E) of indoor unit system. The 3-room models have 3 lines (A ~ C) and the 4-room models have 4 lines (A ~ D). (5) Liquid pipe Expansion valve thermistor...
  • Page 81 SiSG121917E Thermistor Functions (5) Liquid Pipe  Liquid pipe thermistor is used to protect the compressor against liquid attack during cooling Thermistor operation.  In case of low outdoor temperature operation, the system compares the indoor heat exchanger temperature with the liquid pipe temperature to detect disturbances in the refrigerant flow.

  • Page 82: Control Specification

    Control Specification SiSG121917E 4. Control Specification Mode Hierarchy Outline The air conditioner control has normal operation mode, forced operation mode, and power transistor test mode for installation and servicing. Details Air conditioner control mode Forced operation mode Forced cooling operation (for pump down operation) Wiring error check operation Power transistor test mode Normal operation mode...
  • Page 83 SiSG121917E Control Specification 2. Determine upper limit frequency The minimum value is set as the upper limit frequency among the frequency upper limits of the following functions: Compressor protection, input current, discharge pipe temperature, low Hz high pressure limit, freeze-up protection. 3.

  • Page 84: Controls At Mode Changing/Start-Up

    Control Specification SiSG121917E  For limiting lower limit: Frequency control is carried out only when the frequency rises. 5. Upper and lower limit of frequency by PI control The frequency upper and lower limits are set according to the total of S values. When the indoor unit quiet operation commands come from more than one room, or when the outdoor unit quiet operation commands come from all the rooms, the upper limit frequency is lower than the usual setting.

  • Page 85: Discharge Pipe Temperature Control

    SiSG121917E Control Specification Discharge Pipe Temperature Control Outline The discharge pipe temperature is used as the internal temperature of the compressor. If the discharge pipe temperature rises above a certain level, the upper limit of frequency is set to keep the discharge pipe temperature from rising further. Details Zone Control...

  • Page 86: Input Current Control

    Control Specification SiSG121917E Input Current Control Outline An input current is detected by the CT while the compressor is running, and the frequency upper limit is set from the input current. Details Compressor Stop Stop zone Dropping zone Keep zone Input current Reset zone (R14643)

  • Page 87: Freeze-Up Protection Control

    SiSG121917E Control Specification Freeze-up Protection Control 4.6.1 Freeze-up Protection Control for Wall Mounted and LSP Duct Type Outline During cooling operation, the signals sent from the indoor unit control the operating frequency limitation and prevent freezing of the indoor heat exchanger. The signal from the indoor unit is divided into zones.

  • Page 88: Outdoor Fan Control

    Control Specification SiSG121917E Outdoor Fan Control 1. Fan ON control to cool down the electrical box The outdoor fan is turned ON when the electrical box temperature is high while the compressor is OFF. 2. Fan OFF delay when stopped The outdoor fan is turned OFF 60 - 80 seconds after the compressor stops.

  • Page 89: Low Hz High Pressure Limit

    SiSG121917E Control Specification Low Hz High Pressure Limit Outline The upper limit of high pressure in a low Hz zone is set. The upper limit of the indoor heat exchanger temperature is also set by the operating frequency. Zones are divided into three, reset zone, keep zone, and dropping zone, and the frequency control is carried out according to each zone.
  • Page 90 Control Specification SiSG121917E Operation pattern z : Available — : Not available When the power is turned on Fully closed when the power is — — — — — — turned on Cooling, 1 room operation Open control when starting —...
  • Page 91 SiSG121917E Control Specification 4.10.6 High Discharge Pipe Temperature Control When the compressor is operating, if the discharge pipe temperature exceeds a certain value, the electronic expansion valve opens and the refrigerant runs to the low pressure side. This procedure lowers the discharge pipe temperature. 4.10.7 Discharge Pipe Thermistor Disconnection Control Outline The disconnection of the discharge pipe thermistor is detected by comparing the discharge pipe...

  • Page 92: Malfunctions

    Control Specification SiSG121917E 4.11 Malfunctions 4.11.1 Sensor Malfunction Detection Sensor malfunction may occur either in the thermistor or current transformer (CT) system. Relating to thermistor malfunction 1. Outdoor heat exchanger thermistor 2. Discharge pipe thermistor 3. Radiation fin thermistor 4. Gas pipe thermistor 5.

  • Page 93: Part 5 Remote Controller

    SiSG121917E Part 5 Remote Controller 1. Applicable Remote Controller ...............89 2. ARC466A19 ..................90 3. ARC433B76 ..................92 4. BRC086A22 ..................94 5. BRC1E63 ....................96 Part 5 Remote Controller...

  • Page 94: Applicable Remote Controller

    BRC1E63 FDMR71TVMG Note Refer to the operation manual of applicable model for details. You can download operation manuals from Daikin Business Portal: Daikin Business Portal  Document Search  Item Category  Installation/Operation Manual (URL: https://global1d.daikin.com/business_portal/login/) Part 5 Remote Controller...

  • Page 95: Arc466A19

    SiSG121917E ARC466A19 2. ARC466A19 Signal transmitter Display (LCD) Receiver • To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote controller, such as a curtain, the unit will not operate. •...
  • Page 96 ARC466A19 SiSG121917E Open the Front Cover Mode button • Selects the operation mode. COOL 4 Econo / Quiet button • Every time you press Econo/Quiet button, the setting changes in the following order. Comfort/Sensor button (COMFORT AIRFLOW ECONO OUTDOOR UNIT 2 Operation / INTELLIGENT...

  • Page 97: Arc433B76

    SiSG121917E ARC433B76 3. ARC433B76 Display (LCD) Signal transmitter • Displays the current settings. • T o use the remote controller, aim the (In this illustration, each section is transmitter at the indoor unit. If there shown with all its displays on for the is anything to block signals between purpose of explanation.) the unit and the remote controller,...
  • Page 98 ARC433B76 SiSG121917E Open the Front Cover MODE button • Selects the operation mode. COOL FAN setting button QUIET button • Selects the airflow rate setting every time you press this button. • OUTDOOR UNIT QUIET operation • OUTDOOR UNIT QUIET Indoor unit quiet Auto operation is not available in...

  • Page 99: Brc086A22

    SiSG121917E BRC086A22 4. BRC086A22 FDMR Series Part 5 Remote Controller...
  • Page 100 BRC086A22 SiSG121917E PROGRAMMING TIMER BUTTON DISPLAY “ ” (SIGNAL TRANSMISSION) Use this button for programming “START and/ This blinks when a signal is being transmitted. or STOP” time. DISPLAY “ ” “ ” “ ” “ ” “ ” TIMER MODE ON/OFF BUTTON (OPERATION MODE) Refer to operation manual.

  • Page 101: Brc1E63

    SiSG121917E BRC1E63 5. BRC1E63 1. Mode Selector button 11. LCD (with backlight) 4. Up button 5. Down button 6. Right button 7. Left button 9. Operation lamp (Green) 8. ON/OFF button 3. Menu/Enter button 10. Cancel button Airflow Setting button Part 5 Remote Controller...
  • Page 102 BRC1E63 SiSG121917E Mode Selector button Left button “ ” Use to select the operation mode of your Used to highlight the next items on the preference. left-hand side. * Available modes vary with the connecting Display contents are changed to previous model.
  • Page 103 SiSG121917E BRC1E63 Basic Screen • Basic screen are two types of Standard display screen and Detailed display screen. The Standard display screen is set by default. • To switch to the Detailed display, select the “Detailed” in the Main Menu. •...
  • Page 104 BRC1E63 SiSG121917E 1. Operation Mode If a number of indoor units are in operation, the message will appear only if none of the Displays the present operation mode, indoor units is provided with the “Cool”, “Heat”, “Vent”, “Fan”, “Dry” or “Auto”. corresponding function, i.e., the message will not appear if at least one of the indoor 2.
  • Page 105 SiSG121917E BRC1E63 10. Centralized Control “ ” Displayed if the system is under the management of centralized control equipment (optional accessories) and the operation of the system through the remote controller is prohibited. ” Changeover Under Control “ (VRV only) Displayed if the remote controller has no cool/heat selection eligibility.

  • Page 106: Part 6 Service Diagnosis

    SiSG121917E Part 6 Service Diagnosis 1. General Problem Symptoms and Check Items ........103 2. Troubleshooting with LED ..............104 2.1 Indoor Unit....................104 2.2 Outdoor Unit ..................106 3. Service Diagnosis ................107 3.1 ARC466 Series Wireless Remote Controller........107 3.2 ARC433 Series Wireless Remote Controller........110 4.
  • Page 107 SiSG121917E 7.11 Input Overcurrent Detection ..............152 7.12 Discharge Pipe Temperature Control...........153 7.13 High Pressure Control in Cooling ............154 7.14 System Shutdown due to Temperature Abnormality in Compressor ...156 7.15 Compressor System Sensor Abnormality ..........157 7.16 Position Sensor Abnormality ..............158 7.17 CT or Related Abnormality ..............160 7.18 Thermistor or Related Abnormality (Outdoor Unit).......162 7.19 Electrical Box Temperature Rise............164 7.20 Radiation Fin Temperature Rise ............165...

  • Page 108: General Problem Symptoms And Check Items

    General Problem Symptoms and Check Items SiSG121917E 1. General Problem Symptoms and Check Items Symptom Check Item Details Reference Page None of the units operates. Check the power supply. Check if the rated voltage is supplied. — Check the types of the indoor units. Check if the indoor unit type is compatible —...

  • Page 109: Troubleshooting With Led

    SiSG121917E Troubleshooting with LED 2. Troubleshooting with LED Indoor Unit Operation Lamp The operation lamp blinks when any of the following errors is detected. 1. A protection device of the indoor or outdoor unit is activated, or the thermistor malfunctions. 2.
  • Page 110 Troubleshooting with LED SiSG121917E FDMR Series with Wireless Remote Controller Operation lamp (green) (R24930) Wired Remote Controller Operation lamp(green) (R25259) Caution When operation stops suddenly and the operation lamp blinks, it could be operation mode conflict. 1. Check if the operation modes all the same for the indoor units connected to multi system outdoor unit.

  • Page 111: Outdoor Unit

    SiSG121917E Troubleshooting with LED Outdoor Unit The outdoor unit has a green LED (LED A) and red LEDs (LED 1 ~ LED 5) on the service monitor PCB. When the microcomputer works in order, the LED A blinks, and when the system is in normal condition, the red LEDs are OFF.

  • Page 112: Service Diagnosis

    Service Diagnosis SiSG121917E 3. Service Diagnosis ARC466 Series Wireless Remote Controller 3.1.1 Method 1 1. When Timer cancel button is held down for 5 seconds, 00 is displayed on the temperature display screen. 2. Press Timer cancel button repeatedly until a long beep sounds. Timer Cancel button <...
  • Page 113 SiSG121917E Service Diagnosis 3.1.2 Method 2 1. Press the center of Temp button and Mode button at the same time. R6000648 5C is displayed on the LCD. R6000109 2. Select 5C (service check) with Temp or Temp button. 3. Press Mode button to enter the service check mode. R6000649 The left-side number blinks.
  • Page 114 Service Diagnosis SiSG121917E  Long beep: Both the left-side and right-side numbers correspond with the error code. The numbers indicated when you hear the long beep are the error code. Refer to page 114, 115. 6. Press Mode button. R6000649 The right-side number blinks.

  • Page 115: Arc433 Series Wireless Remote Controller

    SiSG121917E Service Diagnosis ARC433 Series Wireless Remote Controller 3.2.1 Method 1 1. When TIMER CANCEL button is held down for 5 seconds, 00 is displayed on the temperature display screen. 2. Press TIMER CANCEL button repeatedly until a long beep sounds. TIMER CANCEL button (R23549) <...
  • Page 116 Service Diagnosis SiSG121917E 3.2.2 Method 2 1. Press the center of TEMP button and MODE button at the same time to enter the diagnosis mode. (R19114) The left-side number blinks. (R14967) 2. Press TEMP  or TEMP  button and change the number until you hear the two consecutive beeps or the long beep.
  • Page 117 SiSG121917E Service Diagnosis 5. Press TEMP  or TEMP  button and change the number until you hear the long beep. (R19115) 6. Diagnose by the sound.  Beep: The left-side number does not correspond with the error code.  Two consecutive beeps: The left-side number corresponds with the error code but the right-side number does not.
  • Page 118 Service Diagnosis SiSG121917E 3.2.3 BRC086A22 Wireless Remote Controller 1. Press INSPECTION button to select the inspection mode. "0" appears on the display and blinks. "Unit No." appears. 2. Press PROGRAMMING TIMER button and change the unit number. Press to change the unit number until the indoor unit beeps and perform the following operation according to the number of beeps.

  • Page 119: Code Indication On Remote Controller

    SiSG121917E Code Indication on Remote Controller 4. Code Indication on Remote Controller Indoor Unit Wall mounted and LSP duct type Error Codes Description Reference Page Normal condition — Indoor unit PCB abnormality Freeze-up protection control Indoor fan motor or related DC motor (CTKS, CTKB abnormality series)

  • Page 120: Outdoor Unit

    Code Indication on Remote Controller SiSG121917E Outdoor Unit i: ON, h: OFF, j: Blinks Green : Blinks in normal condition Red : OFF in normal condition Outdoor Unit LED Indication Error Reference Green Description Codes Page Normal condition — Unspecified voltage (between indoor unit and outdoor unit) Anti-icing function in other rooms (U0)

  • Page 121: Troubleshooting For Wall Mounted And Lsp Duct Type Indoor Unit

    SiSG121917E Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit 5. Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit Indoor Unit PCB Abnormality Error Code Method of Error The system checks if the circuit works properly within the microcomputer of the indoor unit. Detection Error Decision The system cannot set the internal settings.
  • Page 122 Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit SiSG121917E Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Combination of the indoor and outdoor Match the compatible unit matched? models.

  • Page 123: Freeze-Up Protection Control

    SiSG121917E Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit Freeze-up Protection Control Error Code Method of Error During cooling operation, the freeze-up protection control (operation halt) is activated according Detection to the temperature detected by the indoor heat exchanger thermistor. Error Decision During cooling operation, the indoor heat exchanger temperature is below 0°C.

  • Page 124: Indoor Fan Motor Or Related Abnormality

    Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit SiSG121917E Indoor Fan Motor or Related Abnormality 5.3.1 DC Fan Motor or Related Abnormality Applicable CTKS25/35/50/60/71TVMG CTKB25/35/50/60TVMG Models Error Code Method of Error The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation.
  • Page 125 SiSG121917E Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit Continued from the previous page Abnormal Fan rotates smoothly? sound occurs? Check No. 03 Check the fan motor for breakdown or short circuit. Is the rubber cushion Replace the bearing rubber properly fitted? cushion....
  • Page 126 Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit SiSG121917E 5.3.2 AC Fan Motor or Related Abnormality Applicable FDKS25/35EAVMB Models FDKS25/35CAVMB FDKS50/60CVMB Error Code Method of Error The rotation speed detected by the Hall IC during fan motor operation determines abnormal fan Detection motor operation.
  • Page 127 SiSG121917E Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check the power supply voltage. Is the voltage fluctuation Correct the power supply.

  • Page 128: Thermistor Or Related Abnormality (Indoor Unit)

    Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit SiSG121917E Thermistor or Related Abnormality (Indoor Unit) C4, C9 Error Code Method of Error The temperatures detected by the thermistors determine thermistor errors. Detection Error Decision The voltage between the both ends of the thermistor is either 4.96 V or more, or 0.04 V or less Conditions with the power on.

  • Page 129: Signal Transmission Error (Between Indoor Unit And Outdoor Unit)

    SiSG121917E Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit Signal Transmission Error (Between Indoor Unit and Outdoor Unit) Error Code Method of Error The signal transmission data received from the outdoor unit is checked whether it is normal. Detection Error Decision The data sent from the outdoor unit cannot be received normally, or the content of the data is...
  • Page 130 Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit SiSG121917E Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check the power supply voltage. Is the voltage fluctuation Correct the power supply.

  • Page 131: Unspecified Voltage (Between Indoor Unit And Outdoor Unit)

    SiSG121917E Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit Unspecified Voltage (Between Indoor Unit and Outdoor Unit) Error Code Method of Error The supply power is detected for its requirements (pair type is different from multi type) by the Detection indoor/outdoor transmission signal.

  • Page 132: Troubleshooting For Msp Duct Type Indoor Unit

    Troubleshooting for MSP Duct Type Indoor Unit SiSG121917E 6. Troubleshooting for MSP Duct Type Indoor Unit Indoor Unit PCB Abnormality Error Code Method of Error The system checks the data from EEPROM. Detection Error Decision When the data from the EEPROM is not received correctly Conditions EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its content without power.

  • Page 133: Drain Water Level Control System Abnormality

    SiSG121917E Troubleshooting for MSP Duct Type Indoor Unit Drain Water Level Control System Abnormality Error Code Method of Error The float switch detects error. Detection Error Decision When the water level reaches its upper limit and when the float switch turns OFF Conditions Supposed ...

  • Page 134: Indoor Fan Motor Or Related Abnormality

    Troubleshooting for MSP Duct Type Indoor Unit SiSG121917E Indoor Fan Motor or Related Abnormality Error Code Method of Error  Detection from the current flow on the fan PCB Detection  Detection from the rotation speed of the fan motor in operation Error Decision The rotation speed is less than a certain level for 6 seconds.
  • Page 135 SiSG121917E Troubleshooting for MSP Duct Type Indoor Unit The HAP lamp on the indoor unit main PCB is blinking while the HAP lamp on the fan PCB is not blinking. Turn OFF the power supply Turn OFF the power supply and wait for 10 minutes.

  • Page 136: Fan Pcb Abnormality

    Troubleshooting for MSP Duct Type Indoor Unit SiSG121917E Fan PCB Abnormality Error Code Method of Error Microcomputer checks the voltage state of the fan PCB. Detection Error Decision Overvoltage or voltage drop is detected on the fan PCB. Conditions Supposed ...

  • Page 137: Drain System Abnormality

    SiSG121917E Troubleshooting for MSP Duct Type Indoor Unit Drain System Abnormality Error Code Method of Error Water leakage is detected based on the float switch ON/OFF changeover while the compressor Detection is not operating. Error Decision The float switch changes from ON to OFF while the compressor is OFF Conditions Supposed ...

  • Page 138: Thermistor Or Related Abnormality

    Troubleshooting for MSP Duct Type Indoor Unit SiSG121917E Thermistor or Related Abnormality C4, C5, C9 Error Code Method of Error The temperatures detected by the thermistors determine thermistor errors. Detection Error Decision The voltage between the both ends of the thermistor is either 4.96 V or more, or 0.04 V or less Conditions with the power on.

  • Page 139: Remote Controller Thermistor Abnormality

    SiSG121917E Troubleshooting for MSP Duct Type Indoor Unit Remote Controller Thermistor Abnormality Error Code Method of Error Even if remote controller thermistor is faulty, system is possible to operate by system thermistor. Detection Malfunction detection is carried out by the temperature detected by the remote controller thermistor.

  • Page 140: Signal Transmission Error (Between Indoor Unit And Remote Controller)

    Troubleshooting for MSP Duct Type Indoor Unit SiSG121917E Signal Transmission Error (Between Indoor Unit and Remote Controller) Error Code Method of Error In case of controlling with 2 remote controllers, check the system using microcomputer if signal Detection transmission between indoor unit and remote controller (main and sub) is normal. Error Decision Normal transmission does not continue for specified period.

  • Page 141: Signal Transmission Error (Between Main Remote Controller And Sub Remote Controller)

    SiSG121917E Troubleshooting for MSP Duct Type Indoor Unit Signal Transmission Error (Between MAIN Remote Controller and SUB Remote Controller) Error Code Method of Error In case of controlling with 2 remote controllers, check the system using microcomputer if signal Detection transmission between MAIN remote controller and SUB remote controller is normal.

  • Page 142: Field Setting Abnormality

    Troubleshooting for MSP Duct Type Indoor Unit SiSG121917E 6.10 Field Setting Abnormality Error Code Error Decision Incorrect field setting Conditions Supposed  Defective indoor unit PCB Causes  Defective outdoor unit PCB  Improper power supply  Indoor-outdoor, indoor-indoor unit transmission wiring ...

  • Page 143: Troubleshooting For Outdoor Unit

    SiSG121917E Troubleshooting for Outdoor Unit 7. Troubleshooting for Outdoor Unit Refrigerant Shortage Error Code Outdoor Unit LED A j 1 h 2 h 3 i 4 i 5 h Display Method of Error Refrigerant shortage is detected by checking the input current value and the compressor output Detection frequency.
  • Page 144 Troubleshooting for Outdoor Unit SiSG121917E Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Any thermistor Replace the thermistor(s) disconnected? position. ∗ Discharge pipe thermistor ∗ Indoor or outdoor heat exchanger thermistor ∗...

  • Page 145: Low-Voltage Detection Or Over-Voltage Detection

    SiSG121917E Troubleshooting for Outdoor Unit Low-voltage Detection or Over-voltage Detection Error Code Outdoor Unit LED A j 1 i 2 h 3 h 4 i 5 h Display Method of Error Low-voltage detection: Detection An abnormal voltage drop is detected by the DC voltage detection circuit. Over-voltage detection: An abnormal voltage rise is detected by the over-voltage detection circuit.
  • Page 146 Troubleshooting for Outdoor Unit SiSG121917E Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check the power supply voltage. Is the voltage fluctuation Correct the power supply. within ±10% from the rated value? Check the connection of the compressor harness.

  • Page 147: Wiring Error Check Unexecuted

    SiSG121917E Troubleshooting for Outdoor Unit Wiring Error Check Unexecuted Error Code Outdoor Unit LED A j 1 h 2 i 3 h 4 h 5 h Display Method of Error The system checks if wiring error check is executed after clearing the memory. Detection Error Decision An error is determined when the unit is operated by the remote controller without executing...

  • Page 148: Signal Transmission Error (On Outdoor Unit Pcb)

    Troubleshooting for Outdoor Unit SiSG121917E Signal Transmission Error (on Outdoor Unit PCB) Error Code Outdoor Unit LED A j 1 h 2 i 3 i 4 i 5 h Display Method of Error Communication error between microcomputer mounted on the main PCB and PM1. Detection Error Decision ...

  • Page 149: Unspecified Voltage (Between Indoor Unit And Outdoor Unit)/Anti-Icing Function In Other Rooms

    SiSG121917E Troubleshooting for Outdoor Unit Unspecified Voltage (Between Indoor Unit and Outdoor Unit)/Anti-icing Function in Other Rooms UA, UH Error Code Outdoor Unit LED A j 1 h 2 h 3 h 4 h 5 h Display Method of Error A wrong connection is detected by checking the combination of indoor and outdoor units on the Detection microcomputer.

  • Page 150: Anti-Icing Control For Indoor Unit

    Troubleshooting for Outdoor Unit SiSG121917E Anti-icing Control for Indoor Unit Error Code Outdoor Unit LED A j 1 i 2 h 3 i 4 i 5 h Display Method of Error During cooling operation, indoor unit icing is detected by checking the temperatures sensed by Detection the indoor heat exchanger thermistor and room temperature thermistor that are located in a shut-down room.
  • Page 151 SiSG121917E Troubleshooting for Outdoor Unit Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Check the wiring and piping. Wrong wiring or Activate the wiring error check piping? function. Check No.

  • Page 152: Outdoor Unit Pcb Abnormality

    Troubleshooting for Outdoor Unit SiSG121917E Outdoor Unit PCB Abnormality Error Code Outdoor Unit LED A j 1 i 2 i 3 i 4 h 5 h Display Method of Error Detect within the program of the microcomputer. Detection Error Decision The program of the microcomputer is in abnormal running order.

  • Page 153: Ol Activation (Compressor Overload)

    SiSG121917E Troubleshooting for Outdoor Unit OL Activation (Compressor Overload) Error Code Outdoor Unit LED A j 1 i 2 h 3 i 4 h 5 h Display Method of Error A compressor overload is detected through compressor OL. Detection Error Decision ...
  • Page 154 Troubleshooting for Outdoor Unit SiSG121917E Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Discharge pipe thermistor Insert the thermistor in disconnected? position. Check No. 01 Replace the discharge pipe Check the discharge pipe thermistor.

  • Page 155: Compressor Lock

    SiSG121917E Troubleshooting for Outdoor Unit Compressor Lock Error Code Outdoor Unit LED A j 1 h 2 i 3 i 4 h 5 h Display Method of Error A compressor lock is detected by checking the compressor running condition through the Detection position detection circuit.

  • Page 156: Dc Fan Lock

    Troubleshooting for Outdoor Unit SiSG121917E 7.10 DC Fan Lock Error Code Outdoor Unit LED A j 1 i 2 i 3 i 4 i 5 h Display Method of Error An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC. Detection Error Decision ...

  • Page 157: Input Overcurrent Detection

    SiSG121917E Troubleshooting for Outdoor Unit 7.11 Input Overcurrent Detection Error Code Outdoor Unit LED A j 1 h 2 i 3 h 4 i 5 h Display Method of Error Detected by checking the input current value Detection Error Decision The current exceeds about 17 ~ 19.25 A (depending on the model) for 2.5 seconds with the Conditions compressor running.

  • Page 158: Discharge Pipe Temperature Control

    Troubleshooting for Outdoor Unit SiSG121917E 7.12 Discharge Pipe Temperature Control Error Code Outdoor Unit LED A j 1 i 2 h 3 i 4 h 5 h Display Method of Error An error is determined with the temperature detected by the discharge pipe thermistor. Detection Error Decision ...

  • Page 159: High Pressure Control In Cooling

    SiSG121917E Troubleshooting for Outdoor Unit 7.13 High Pressure Control in Cooling Error Code Outdoor Unit LED A j 1 i 2 h 3 i 4 i 5 h Display Method of Error High-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation if Detection the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.
  • Page 160 Troubleshooting for Outdoor Unit SiSG121917E Reference Check No.17 Refer to P.176 Reference Check No.18 Refer to P.176 Reference Check No.19 Refer to P.177 Part 6 Service Diagnosis...

  • Page 161: System Shutdown Due To Temperature Abnormality In Compressor

    SiSG121917E Troubleshooting for Outdoor Unit 7.14 System Shutdown due to Temperature Abnormality in Compressor Error Code Outdoor Unit LED A j 1 h 2 h 3 i 4 i 5 h Display Method of Error Operation is halted when the temperature detected by the discharge pipe thermistor exceeds Detection the determined limit.

  • Page 162: Compressor System Sensor Abnormality

    Troubleshooting for Outdoor Unit SiSG121917E 7.15 Compressor System Sensor Abnormality Error Code Outdoor Unit LED A j 1 i 2 i 3 h 4 h 5 h Display Method of Error  The system checks the power supply voltage and the DC voltage before the compressor Detection starts.

  • Page 163: Position Sensor Abnormality

    SiSG121917E Troubleshooting for Outdoor Unit 7.16 Position Sensor Abnormality Error Code Outdoor Unit LED A j 1 i 2 i 3 h 4 h 5 h Display Method of Error A compressor start-up failure is detected by checking the compressor running condition through Detection the position detection circuit.
  • Page 164 Troubleshooting for Outdoor Unit SiSG121917E Continued from the previous page Check the connection. Electrical components or compressor harnesses Reconnect the electrical connected as components or compressor specified? harnesses as specified. Turn on the power. Check the electrolytic capacitor voltage. + 100 Within 320 VDC? Replace the outdoor unit...

  • Page 165: Ct Or Related Abnormality

    SiSG121917E Troubleshooting for Outdoor Unit 7.17 CT or Related Abnormality Error Code Outdoor Unit LED A j 1 i 2 i 3 h 4 h 5 h Display Method of Error A CT or related error is detected by checking the compressor running frequency and Detection CT-detected input current.
  • Page 166 Troubleshooting for Outdoor Unit SiSG121917E Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Turn off the power. Then, turn on the power to restart the system. Start operation. ∗...

  • Page 167: Thermistor Or Related Abnormality (Outdoor Unit)

    SiSG121917E Troubleshooting for Outdoor Unit 7.18 Thermistor or Related Abnormality (Outdoor Unit) H9, J3, J6, J8, J9, P4 Error Code Outdoor Unit LED A j 1 i 2 i 3 h 4 h 5 h Display Method of Error This fault is identified based on the thermistor input voltage to the microcomputer. Detection A thermistor fault is identified based on the temperature sensed by each thermistor.
  • Page 168 Troubleshooting for Outdoor Unit SiSG121917E Troubleshooting In case of H9, J3, J6, J8, J9 Be sure to turn off the power switch before connecting or disconnecting Caution connectors, or parts may be damaged. Turn on the power again. Error displayed Reconnect the connectors again on remote or thermistors.

  • Page 169: Electrical Box Temperature Rise

    SiSG121917E Troubleshooting for Outdoor Unit 7.19 Electrical Box Temperature Rise Error Code Outdoor Unit LED A j 1 i 2 i 3 h 4 i 5 h Display Method of Error An electrical box temperature rise is detected by checking the radiation fin thermistor with the Detection compressor off.

  • Page 170: Radiation Fin Temperature Rise

    Troubleshooting for Outdoor Unit SiSG121917E 7.20 Radiation Fin Temperature Rise Error Code Outdoor Unit LED A j 1 h 2 h 3 h 4 i 5 h Display Method of Error A radiation fin temperature rise is detected by checking the radiation fin temperature with the Detection compressor on.
  • Page 171 SiSG121917E Troubleshooting for Outdoor Unit Reference Check No.19 Refer to P.177 Note Refer to Silicone Grease on Power Transistor/Diode Bridge on page 203 for details. Part 6 Service Diagnosis...

  • Page 172: Output Overcurrent Detection

    Troubleshooting for Outdoor Unit SiSG121917E 7.21 Output Overcurrent Detection Error Code Outdoor Unit LED A j 1 h 2 h 3 i 4 h 5 h Display Method of Error An output overcurrent is detected by checking the current that flows in the inverter DC section. Detection Error Decision ...
  • Page 173 SiSG121917E Troubleshooting for Outdoor Unit Continued from the previous page Any LED off? Correct the power supply or replace the outdoor unit PCB (main PCB). Check No. 22 Check the power module. Normal? Replace the outdoor unit PCB (main PCB). Turn off the power, and reconnect the harnesses.

  • Page 174: Check

    Check SiSG121917E 8. Check Thermistor Resistance Check Check No.01 Measure the resistance of each thermistor using multimeter. The resistance values are defined by below table. If the measured resistance value does not match the listed value, the thermistor must be replaced.

  • Page 175: Indoor Fan Motor Connector Check

    SiSG121917E Check Indoor Fan Motor Connector Check Check No.03  Fan motor wire breakdown/short circuit check (1) Check the connector for connection. (2) Turn the power off. (3) Check if each resistance at the phases U - V and V - W is within specified range in the table below.

  • Page 176: Hall Ic Check

    Check SiSG121917E Check No.24 1. Turn the power supply OFF. 2. With the fan motor connector disconnected, measure the resistance between each pin, then make sure that the resistance is more than the value mentioned in the following table. Measuring points Judgement White - Blue 1 M...

  • Page 177: Power Supply Waveform Check

    SiSG121917E Check Power Supply Waveform Check Check No.11 Measure the power supply waveform between No. 1 and No. 2 on the terminal strip, and check the waveform disturbance.  Check if the power supply waveform is a sine wave (Fig.1). ...

  • Page 178: Inverter Unit Refrigerant System Check

    Check SiSG121917E Valve Possible problem Check method opening position Cooling: Reset power supply and conduct cooling operation unit  The problem unit does not cool by unit. the room.  Only the problem unit is in Check the low pressure. operation, the unit starts pump down.
  • Page 179 SiSG121917E Check (1) Remove the terminals from (2) Connect the terminals to the the compressor. terminals of the inverter analyzer. compressor compressor Inverter analyzer Be careful not to let the terminals (U,V,W) touch each other. Otherwise, high voltage is applied. (R22731) Reference: If the terminals of the compressor are not FASTON terminals (difficult to remove the wire on the...

  • Page 180: Rotation Pulse Check On The Outdoor Unit Pcb

    Check SiSG121917E Rotation Pulse Check on the Outdoor Unit PCB Check No.16 Outdoor fan motor Make sure that the voltage of 320 ± 30 V is applied. 1. Set operation off and power off. Disconnect the connector S70. 2. Check that the voltage between the pins 4 - 7 is 320 VDC. 3.

  • Page 181: Installation Condition Check

    SiSG121917E Check Installation Condition Check Check No.17 Installation condition check Check the allowable dimensions of the air Change the installation suction and location or direction. discharge area. Is the discharged air Change the installation short-circuited? location or direction. Is the outdoor heat Clean the outdoor heat exchanger very dirty? exchanger.

  • Page 182: Outdoor Fan System Check

    Check SiSG121917E 8.11 Outdoor Fan System Check Check No.19 DC motor Check the outdoor fan system. Fan motor Is the lead wire connector Go to Check No. 16. outdoor fan running? disconnected? Outdoor fan system is functioning. Reconnect the connector. (R21195) 8.12 Main Circuit Short Check Check No.20...

  • Page 183: Capacitor Voltage Check

    SiSG121917E Check  90 class Multimeter (R21123) 8.13 Capacitor Voltage Check Check No.21 Before this check, be sure to check the main circuit for short circuit. With the circuit breaker still on, measure the voltage according to the drawing of the model in question.

  • Page 184: Power Module Check

    Check SiSG121917E  90 class DC_N2 Multimeter (DC voltage range) (R21124)  To prevent electrical shock, use a multimeter to check that the voltage between FU2 and DC_N2 is 50 V or less.  The surface of the test points (FU2, DC_N2) may be covered with the coating. Be sure to make firm contact between the multimeter probes and the test points.
  • Page 185 SiSG121917E Check  50/65/80 class DC– (R22378)  90 class DCP2: + DCM2: – (R21130) Part 6 Service Diagnosis...

  • Page 186: Part 7 Trial Operation And Field Settings

    SiSG121917E Part 7 Trial Operation and Field Settings 1. Pump Down Operation................182 2. Forced Cooling Operation ..............183 3. Wiring Error Check Function ...............185 4. Trial Operation ..................187 4.1 Indoor Unit....................187 4.2 Outdoor Unit ..................189 5. Field Settings ..................191 5.1 Wall Mounted and LSP Duct Type Indoor Unit........191 5.2 MSP Duct Type Indoor Unit..............193 5.3 Outdoor Unit ..................200 6.

  • Page 187: Pump Down Operation

    SiSG121917E Pump Down Operation 1. Pump Down Operation Outline In order to protect the environment, be sure to conduct pump down operation when relocating or disposing of the unit. Detail 1. Remove the valve caps from the liquid stop valve and the gas stop valve. 2.

  • Page 188: Forced Cooling Operation

    Forced Cooling Operation SiSG121917E 2. Forced Cooling Operation Procedure  50/65/80 class 1. Turn off the power. 2. Remove the right side panel (7 screws). 3. Remove the service cover (1 screw). 4. Turn SW5 and SW6 to OFF position. 5.
  • Page 189 SiSG121917E Forced Cooling Operation  90 class 1. Turn off the power. 2. Remove the right side panel (6 screws). 3. Turn SW5 to the OFF position. 4. Turn the operation mode switch (SW2) to COOL. 5. Turn on the power. 6.

  • Page 190: Wiring Error Check Function

    Wiring Error Check Function SiSG121917E 3. Wiring Error Check Function Outline Wiring error check function is designed for the microcomputer to correct wiring errors itself. If local wiring is unclear in the case of buried piping, for example, just press the wiring error check switch on the outdoor unit.
  • Page 191 SiSG121917E Wiring Error Check Function In a multi system with 2 ports (Port A and Port B), LED 1 and LED 2 indicate wiring to Room A and Room B respectively. The LED that blinks first and second indicate piping Port A and Port B respectively.

  • Page 192: Trial Operation

    Trial Operation SiSG121917E 4. Trial Operation Indoor Unit Outline Trial operation should be carried out in cooling operation. 1. Measure the power supply voltage and make sure that it falls within the specified range. 2. Select the lowest programmable temperature (18°C). 3.
  • Page 193 SiSG121917E Trial Operation  With ARC433 Series Remote Controller 1. Press ON/OFF button to turn on the system. 2. Press the center of TEMP button and MODE button at the same time. 3. Press MODE button twice. (T appears on the display to indicate that trial operation is selected.) 4.

  • Page 194: Outdoor Unit

    Trial Operation SiSG121917E Test Items Test items Symptoms Indoor and outdoor units are installed securely. Fall, vibration, noise No refrigerant gas leaks. Incomplete cooling/heating function Refrigerant gas and liquid pipes and indoor drain Water leakage hose extension are thermally insulated. Draining line is properly installed.
  • Page 195 SiSG121917E Trial Operation Test Items Test items Symptoms Indoor and outdoor units are installed Fall, vibration, noise securely. No refrigerant gas leaks. Incomplete cooling function Refrigerant gas and liquid pipes and indoor Water leakage drain hose extension are thermally insulated. Draining line is properly installed.

  • Page 196: Field Settings

    Field Settings SiSG121917E 5. Field Settings Wall Mounted and LSP Duct Type Indoor Unit 5.1.1 When 2 Units are Installed in 1 Room Outline When 2 indoor units are installed in 1 room, 1 of the 2 indoor units and the corresponding wireless remote controller can be set for different address.
  • Page 197 SiSG121917E Field Settings LSP Duct Type 1. Cut the jumper JA on indoor unit control PCB. 2. Remove the battery cover of the remote controller and cut the address jumper (J4). Indoor Unit ADDRESS : JA EXIST ADDRESS (R22633) Wireless Remote Controller 1.

  • Page 198: Msp Duct Type Indoor Unit

    Field Settings SiSG121917E MSP Duct Type Indoor Unit 5.2.1 Field Settings with BRC086A22 Wireless Remote Controller Outline When optional accessories are mounted on the indoor unit, the indoor unit setting may have to be changed. Refer to the instruction manual for each optional accessory. Procedure ...
  • Page 199 SiSG121917E Field Settings Overview of  If the time to clean air filter is set to "Filter Contamination-a lot", set Mode No. to 10, First Setting Code No. to 0, and second Code No. to 02.  Do not use any settings not listed in the table. Second Code No.
  • Page 200 Field Settings SiSG121917E 5.2.2 Field Settings with BRC1E63 Wired Remote Controller Outline When an optional accessory is installed on the indoor unit, settings of the indoor unit may be changed. Refer to the installation manual for each optional accessory. Procedure Press and hold the Cancel button <Basic screen>...
  • Page 201 SiSG121917E Field Settings Press Menu/Enter button. Setting confirmation screen is displayed. <Setting confirmation screen> Select and press Menu/ Field settings Enter button. Setting details are Save the settings? saved and Field settings screen returns. Return Setting In the case of multiple setting changes, repeat After all setting changes are Press Menu/Enter button.
  • Page 202 Field Settings SiSG121917E 5.2.3 MAIN/SUB Setting when Using 2 Wired Remote Controllers Outline The MAIN/SUB setting is necessary when 1 indoor unit is controlled by 2 remote controllers. When you use 2 remote controllers (control panel and separate remote controller), set one to MAIN and the other to SUB.
  • Page 203 SiSG121917E Field Settings 5.2.4 Address and MAIN/SUB Setting for Wireless Remote Controller Outline When several wireless remote controller units are used together in the same room, including the case where both group control and individual remote controller control are used together, be sure to set the addresses for the receiver and wireless remote controller.
  • Page 204 Field Settings SiSG121917E 5. When RESERVE button is pressed, the setting is confirmed and the usual display returns. Address Multiple setting (R24952) Multiple Settings The command such as operation mode or temperature setting by this remote controller will be rejected when the target indoor unit operation is restricted as by an external control such as centralized control.

  • Page 205: Outdoor Unit

    SiSG121917E Field Settings Outdoor Unit 5.3.1 Priority Room Setting Electronic expansion valves are controlled to provide more capacity to the prioritized room.  Setting method Turn off the circuit breaker before changing the setting. Only one room can be set as the priority room (By turning on one of the SW4 on the service monitor PCB of the outdoor unit).
  • Page 206 Field Settings SiSG121917E 5.3.2 NIGHT QUIET Mode Outline If NIGHT QUIET mode is to be used, initial settings must be made when the unit is installed. Explain the function of NIGHT QUIET mode, as described below, to the customer, and confirm whether or not the customer wants to use NIGHT QUIET mode.
  • Page 207 SiSG121917E Field Settings Details Set the operation mode switch (SW2) and the NIGHT QUIET mode setting switch (SW6-1 or SW5-5) as described below. 50/65/80 class 90 class Unit limit SW6-1 SW5-5 COOL HEAT Without limit (factory set) (R22639) (R22671) (R22673) R7000259 COOL HEAT...

  • Page 208: Silicone Grease On Power Transistor/Diode Bridge

    Silicone Grease on Power Transistor/Diode Bridge SiSG121917E 6. Silicone Grease on Power Transistor/Diode Bridge Outline Apply the specified silicone grease to the heat radiation part of a power transistor/diode bridge when you replace an outdoor unit PCB. The silicone grease encourages the heat radiation of a power transistor/diode bridge.

  • Page 209: Part 8 Appendix

    SiSG121917E Part 8 Appendix 1. Piping Diagrams..................205 1.1 Indoor Unit....................205 1.2 Outdoor Unit ..................206 2. Wiring Diagrams..................209 2.1 Indoor Unit....................209 2.2 Outdoor Unit ..................215 3. Operation Limit..................218 Part 8 Appendix...

  • Page 210: Piping Diagrams

    Piping Diagrams SiSG121917E 1. Piping Diagrams Indoor Unit 1.1.1 Wall Mounted Type CTKS25/35TVMG, CTKB25/35TVMG CTKS50TVMG, CTKB50TVMG 4D104482 4D095915D CTKS60TVMG, CTKB60TVMG CTKS71TVMG 4D104484A 4D104483A Part 8 Appendix...

  • Page 211: Outdoor Unit

    SiSG121917E Piping Diagrams 1.1.2 Duct Connected Type FDKS25/35EAVMB, FDKS25/35CAVMB, FDMR50/60/71TVMG FDKS50/60CVMB MODEL MODEL FDKS25EAVMB FDKS50CVMB FDKS35EAVMB 9.5 FDKS60CVMB 12.7 FDKS25CAVMB FDKS35CAVMB MODEL FDMR50/60TVMG 12.7 FDMR71TVMG 15.9 C:4D045449X 4D112974A Outdoor Unit MKS50TVMG, MKB50TVMG 3D109946 Part 8 Appendix...
  • Page 212 Piping Diagrams SiSG121917E MKS65TVMG, MKB65TVMG 3D103941A MKS80TVMG 3D103942A Part 8 Appendix...
  • Page 213 SiSG121917E Piping Diagrams MKS90TVMG 3D104086 Part 8 Appendix...

  • Page 214: Wiring Diagrams

    Wiring Diagrams SiSG121917E 2. Wiring Diagrams Indoor Unit 2.1.1 Wall Mounted Type CTKS25/35/50TVMG 3D123222A Note A1P: Control PCB A2P: Display/signal receiver PCB A3P: INTELLIGENT EYE sensor PCB A4P: Adaptor PCB A5P: Wireless LAN adaptor PCB Refer to page 27 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 215 SiSG121917E Wiring Diagrams CTKS60/71TVMG 3D123223 Note A1P: Filter PCB A2P: Control PCB A3P: Display/signal receiver PCB A4P: INTELLIGENT EYE sensor PCB A5P: Adaptor PCB A6P: Wireless LAN adaptor PCB Refer to page 29 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 216 Wiring Diagrams SiSG121917E CTKB25/35/50TVMG 3D090968C Note PCB1: Control PCB PCB2: Display/signal receiver PCB PCB3: INTELLIGENT EYE sensor PCB Refer to page 27 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 217 SiSG121917E Wiring Diagrams CTKB60TVMG 3D098073B Note PCB1: Filter PCB PCB2: Control PCB PCB3: Display/signal receiver PCB PCB4: INTELLIGENT EYE sensor PCB Refer to page 29 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 218 Wiring Diagrams SiSG121917E 2.1.2 LSP Duct Type FDKS25/35EAVMB, FDKS25/35CAVMB, FDKS50/60CVMB 3D045012P Note PCB1: Control PCB PCB2: Display/signal receiver PCB Refer to page 32 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 219 SiSG121917E Wiring Diagrams 2.1.3 MSP Duct Type FDMR50/60/71TVMG 3D112629A Note A1P: Control PCB A2P: Indoor fan PCB Refer to page 34 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...

  • Page 220: Outdoor Unit

    Wiring Diagrams SiSG121917E Outdoor Unit MKS50TVMG, MKB50TVMG 3D108779A Note PCB1: Main PCB PCB2: Service monitor PCB Refer to page 38 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 221 SiSG121917E Wiring Diagrams MKS65/80TVMG, MKB65TVMG 3D095876D Note PCB1: Main PCB PCB2: Service monitor PCB Refer to page 38 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...
  • Page 222 Wiring Diagrams SiSG121917E MKS90TVMG 3D078236C Note PCB1: Main PCB PCB2: Inverter PCB PCB3: Service monitor PCB Refer to page 40 for Printed Circuit Board Connector Wiring Diagram. Part 8 Appendix...

  • Page 223: Operation Limit

    SiSG121917E Operation Limit 3. Operation Limit MKS50/65/80/90TVMG, MKB50/65TVMG 4D078793B Part 8 Appendix...
  • Page 224 Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.  Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or contractor to install those parts and accessories. Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.

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