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ESiEN05-04
R-410A Sky-Air Indoor
w w w . d a i k i n . e u

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   Summary of Contents for Daikin R-410A

  • Page 1: Service Manual

    ESiEN05-04 Service Manual R-410A Sky-Air Indoor w w w . d a i k i n . e u...

  • Page 2

    ESiEN05-04 Service Manual R-410A Sky-Air Indoor w w w . d a i k i n . e u...

  • Page 3: Table Of Contents

    ESIEN05-04 Table of Contents Introduction About This Manual .................. i–i Combination Overview ................i–ii Part 1 System Outline General Outline What Is in This Chapter? ................ 1–3 FCQ35, 50, 60, 71B ................1–4 FCQ100, 125B ..................1–6 FCQ71D ....................1–8 FCQ100, 125, 140D ................

  • Page 4: Table Of Contents

    ESIEN05-04 Functional Diagrams What Is in This Chapter? ................. 1–55 Indoor Piping.................... 1–56 Pipe Connection Diameters ..............1–58 Piping Components ................. 1–59 Wiring Diagrams What Is in This Chapter? ................. 1–61 FCQ35, 50, 60B..................1–62 FCQ71, 100, 125B................... 1–64 FCQ71, 100, 125, 140D................1–66 FFQ25, 35, 50, 60B .................

  • Page 5: Table Of Contents

    ESIEN05-04 PCB Layout What Is in This Chapter? ................ 1–107 FCQ35, 50, 60B ..................1–108 FCQ71, 100, 125B .................. 1–109 FCQ71, 100, 125, 140D ................1–110 FFQ25, 35, 50, 60B ................1–112 FBQ35, 50, 60, 71B & FDEQ71B ............1–113 FBQ100, 125B &...

  • Page 6: Table Of Contents

    ESIEN05-04 Part 2 Functional Description Functional concept What Is in This Chapter? ................. 2–3 Functions of Thermistors ................. 2–4 Forced Operating Mode (Emergency Operation)........2–5 Outdoor Unit Identification Function ............2–7 Simulated Operation Function ..............2–8 Restart Standby ..................2–9 Automatic Restart ..................

  • Page 7: Table Of Contents

    ESIEN05-04 Part 3 Troubleshooting Troubleshooting What Is in This Chapter? ................ 3–3 General Troubleshooting Flowchart ............3–4 Overview of General Problems ............... 3–5 Procedure of Self-Diagnosis by Remote Controller ........ 3–20 Fault-diagnosis by Wired Remote Controller .......... 3–21 Fault-diagnosis by Wireless Remote Controller ........3–22 Overview of Error Codes.................

  • Page 8

    ESIEN05-04 Additional Checks for Troubleshooting What Is in This Chapter? ................. 3–53 Indoor Unit: Checking the Fan Motor Hall IC ........... 3–54 Indoor Unit: Checking the Power Supply Wave Form......3–55 Checking the Thermistors ................ 3–56 Resistance Conversion Table (Ambient, Coil, Fin) ......... 3–57 Evaluation of Abnormal High Pressure ............

  • Page 9: Table Of Contents

    ESIEN05-04 Part 4 Commissioning and Test Run Pre-Test Run Checks What Is in This Chapter? ................ 4–3 Test Run Checks ..................4–4 Setting the Wireless Remote Controller ..........4–5 Field Settings What Is in This Chapter? ................ 4–9 How to Change the Field Settings with the Wired Remote Controller ...................

  • Page 10: Table Of Contents

    ESIEN05-04 Part 5 Disassembly and Maintenance Disassembly and Maintenance What Is in This Chapter? ................. 5–3 FCQ35, 50, 60, 71B................. 5–4 FCQ100, 125B ..................5–6 FFQ25, 35, 50, 60B ................. 5–8 FBQ35, 50B ..................... 5–10 FBQ60, 71B ..................... 5–12 FBQ100, 125B ..................5–14 FDQ125, 200, 250B.................

  • Page 11: About This Manual

    Purpose of this This service manual contains all the information you need to do the necessary repair and maintenance manual tasks for the R-410A Sky Air Indoor Units. Five parts This service manual consists of an introduction, five parts and an index:...

  • Page 12

    Introduction ESIEN05-04 Combination Overview Introduction In the tables in this section: “2” stands for symmetrical twin combination. “3” stands for symmetrical triple combination. “4“ stands for symmetrical double twin combination. “P” stands for pair combination ‘’M’’ stands for multi combination ‘’T’’...

  • Page 13

    ESIEN05-04 Introduction Multi split outdoor The table below contains the possible combinations between indoor units and multi split outdoor units. Inverter Outdoor unit Cooling Only Heat Pump Indoor unit FCQ35B7V1 FCQ50B7V1 FCQ60B7V1 FFQ25B(7)V1B FFQ35B(7)V1B FFQ50B(7)V1B FFQ60B(7)V1B FBQ35B7V1 FBQ50B7V1 FBQ60B7V1 FHQ35BUV1B FHQ50BUV1B FHQ60BUV1B...

  • Page 14

    Introduction ESIEN05-04 Sky Air outdoor The table below contains the possible combinations between indoor units and Sky Air outdoor units. Non Inverter Inverter Outdoor unit Cooling Only Heat Pump Heat Pump Indoor unit FCQ35B7V1 FCQ50B7V1 FCQ60B7V1 FCQ71B7V3B FCQ100B7V3B FCQ125B7V3B FCQ71DV3B FCQ100DV3B FCQ125DV3B FCQ140DV3B...

  • Page 15

    ESIEN05-04 Introduction Non Inverter Inverter Outdoor unit Cooling Only Heat Pump Heat Pump Indoor unit FHQ35BUV1B FHQ50BUV1B FHQ60BUV1B FHQ71BUV3B FHQ100BUV3B FHQ125BUV3B FUQ71BV3B FUQ100BV3B FUQ125BV3B FAQ71BV3B FAQ100BV3B...

  • Page 16

    Introduction ESIEN05-04 Combination matrix Possible indoor combination (Standard capacity for twin, triple and double twin operation) Twin Triple Double Twin Outdoor models 35-35 RZQ71B8V3B (KHRQ22M20TA7) RZQ100B8V3B 50-50 35-35-35 RZQ100B7W1B (KHRQ22M20TA7) (KHRQ127H7) RZQ125B8V3B 60-60 50-50-50 35-35-35-35 RZQ125B7W1B (KHRQ22M20TA7) (KHRQ127H7) (3x KHRQ22M20TA7) 71-71 50-50-50 35-35-35-35...

  • Page 17

    ESIEN05-04 Introduction Combination matrix Possible indoor combination (Standard capacity for twin, triple and double twin operation) Twin Triple Double Twin Outdoor models 60-60-60 50-50-50-50 100-100 RZQ200B7W1B 71-71-71 (3x KHQ22M20TA7) (KHRQ22M20TA7) (KHRQ250H7) 125-125 60-60-60-60 RZQ250B7W1B (KHRQ22M20TA7) (3x KHRQ22M20TA7) Notes: 1 Possible indoor types: FCQ50~125 FFQ50, 60 FHQ50~125...

  • Page 18

    Introduction ESIEN05-04 Combination matrix Possible indoor combination (Standard capacity for twin and triple operation) Twin Triple Outdoor models RQ71B7V3/W1 35-35 RR71B7V3/W1 (KHRQ22M20TA7) RQ100B7V3/W1 50-50 50-60 35-71 35-35-35 RR100B7V3/W1 (KHRQ22M20TA7) (KHRQ22M20TA7) (KHRQ22M20TA7) (KHRQ127H7) RQ125B7W1 60-60 50-71 50-50-50 RR125B7W1 (KHRQ22M20TA7) (KHRQ22M20TA7) (KHRQ127H7) Notes: 1 Possible indoor types: FCQ35~71...

  • Page 19: Table Of Contents

    ESIEN05-04 Part 1 System Outline What is in this part? This part contains the following chapters: Chapter See page 1–General Outline 1–3 2–Specifications 1–45 3–Functional Diagrams 1–55 4–Wiring Diagrams 1–61 5–Switch Box Layout 1–95 6–PCB Layout 1–107 Part 1 – System Outline 1–1...

  • Page 20

    ESIEN05-04 1–2 Part 1 – System Outline...

  • Page 21: What Is In This Chapter?, What Is In This Chapter

    ESIEN05-04 General Outline Part 1 General Outline What Is in This Chapter? Introduction This chapter contains the following information on the indoor units: Outlook and dimensions Components General outline This chapter contains the following general outlines: General outline See page 1.2–FCQ35, 50, 60, 71B 1–4 1.3–FCQ100, 125B...

  • Page 22: Fcq35, 50, 60, 71b

    General Outline ESIEN05-04 FCQ35, 50, 60, 71B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–4 Part 1 – System Outline...

  • Page 23

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Power supply connection Transmission wiring connection Air outlet Air suction grille Water supply intake for drain Corner decoration cover Drain hose Part 1 –...

  • Page 24

    General Outline ESIEN05-04 FCQ100, 125B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–6 Part 1 – System Outline...

  • Page 25

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Power supply connection Transmission wiring connection Air discharge outlet Air suction grille Water supply intake for drain Corner decoration cover Drain hose Part 1 –...

  • Page 26

    General Outline ESIEN05-04 FCQ71D Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–8 Part 1 – System Outline...

  • Page 27

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Power supply / Wiring / remote control connection Air outlet Suction grille Corner decoration cover Drain hose (accessory) Part 1 –...

  • Page 28: Fcq100, 125, 140d

    General Outline ESIEN05-04 FCQ100, 125, 140D Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–10 Part 1 – System Outline...

  • Page 29

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Power supply / Wiring / remote control connection Power supply connection Air-Outlet Suction grille Corner decoration cover Drain hose (accessory) Part 1 –...

  • Page 30: Ffq25, 35, 50, 60b

    General Outline ESIEN05-04 FFQ25, 35, 50, 60B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–12 Part 1 – System Outline...

  • Page 31

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Power supply connection Remote control code and control wiring connection Air discharge outlet Suction grille Drain hose Part 1 –...

  • Page 32: Fbq35, 50b

    General Outline ESIEN05-04 FBQ35, 50B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–14 Part 1 – System Outline...

  • Page 33

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection remote control wiring connection Power supply connection Drain hole Air filter Air suction side Air discharge side Nameplate Part 1 –...

  • Page 34: Fbq60, 71b

    General Outline ESIEN05-04 FBQ60, 71B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–16 Part 1 – System Outline...

  • Page 35

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection remote control wiring connection Power supply connection Drain hole Air filter Air suction side Air discharge side Nameplate Part 1 –...

  • Page 36: Fbq100, 125b

    General Outline ESIEN05-04 FBQ100, 125B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–18 Part 1 – System Outline...

  • Page 37

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection remote control wiring connection Power supply connection Drain hole Air filter Air suction side Air discharge side Nameplate Part 1 –...

  • Page 38

    General Outline ESIEN05-04 1.10 FDQ125B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–20 Part 1 – System Outline...

  • Page 39

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Power supply instake Drain connection Gas pipe connection single union Liquid pipe connection single union Filter Part 1 – System Outline 1–21...

  • Page 40

    General Outline ESIEN05-04 1.11 FDQ200, 250B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–22 Part 1 – System Outline...

  • Page 41

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Power supply instake Drain connection Gas pipe connection Liquid pipe connection Filter Part 1 – System Outline 1–23...

  • Page 42: Fhq35, 50b

    General Outline ESIEN05-04 1.12 FHQ35, 50B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–24 Part 1 – System Outline...

  • Page 43

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Air outlet Air suction grille Air filter Gas pipe connection Liquid pipe connection Drain pipe connection Earth terminal (Inside the electric components box) Suspension bracket Backward piping and wiring connection opening lid Upward piping and wiring connection opening lid Right side pipe connection...

  • Page 44: Fhq60, 71b

    General Outline ESIEN05-04 1.13 FHQ60, 71B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–26 Part 1 – System Outline...

  • Page 45

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Air outlet Air suction grille Air filter Gas pipe connection Liquid pipe connection Drain pipe connection Earth terminal (Inside the electric components box) Suspension bracket Backward piping and wiring connection opening lid Upward piping and wiring connection opening lid Right side pipe connection...

  • Page 46: Fhq100b

    General Outline ESIEN05-04 1.14 FHQ100B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–28 Part 1 – System Outline...

  • Page 47

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Air outlet Air suction grille Air filter Gas pipe connection Liquid pipe connection Drain pipe connection Earth terminal (Inside the electric components box) Suspension bracket Backward piping and wiring connection opening lid Upward piping and wiring connection opening lid Right side pipe connection...

  • Page 48: Fhq125b

    General Outline ESIEN05-04 1.15 FHQ125B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–30 Part 1 – System Outline...

  • Page 49

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Air outlet Air suction grille Air filter Gas pipe connection Liquid pipe connection Drain pipe connection Earth terminal (Inside the electric components box) Suspension bracket Backward piping and wiring connection opening lid Upward piping and wiring connection opening lid Right side pipe connection...

  • Page 50: Fuq71b

    General Outline ESIEN05-04 1.16 FUQ71B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–32 Part 1 – System Outline...

  • Page 51

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Air outlet Air suction grille Corner decoration cover Right pipe and wiring connection Rear pipe and wiring connection Cover for upwards pipe and wiring connection Accessory drain elbow Part 1 –...

  • Page 52: Fuq100, 125b

    General Outline ESIEN05-04 1.17 FUQ100, 125B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–34 Part 1 – System Outline...

  • Page 53

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection Drain pipe connection Air outlet Air suction grille Corner decoration cover Right pipe and wiring connection Rear pipe and wiring connection Cover for upwards pipe and wiring connection Accessory drain elbow Part 1 –...

  • Page 54: Faq71b

    General Outline ESIEN05-04 1.18 FAQ71B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–36 Part 1 – System Outline...

  • Page 55

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Front panel Front grille Air outlet Gas pipe Liquid pipe Drain hose Grounding terminal Right side pipe connection hole Left side pipe connection hole Part 1 – System Outline 1–37...

  • Page 56: Faq100b

    General Outline ESIEN05-04 1.19 FAQ100B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–38 Part 1 – System Outline...

  • Page 57

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Front grille Air filter Discharge outlet Gas piping connection Gas piping connection Drain piping connection Earth terminal Slit hole for right side piping connection Slit hole for left side piping connection Part 1 –...

  • Page 58: Fdeq71, 100b

    General Outline ESIEN05-04 1.20 FDEQ71, 100B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–40 Part 1 – System Outline...

  • Page 59

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection remote control wiring connection Power supply connection Drain pipe connection Air filter Air suction side Air discharge side Nameplate Part 1 –...

  • Page 60: Fdeq125b

    General Outline ESIEN05-04 1.21 FDEQ125B Outlook and The illustration below shows the outlook and the dimensions of the unit (mm). dimensions 1–42 Part 1 – System Outline...

  • Page 61

    ESIEN05-04 General Outline Components The table below contains the different components of the unit. Component Liquid pipe connection Gas pipe connection remote control wiring connection Power supply connection Drain pipe connection Air filter Air suction side Air discharge side Nameplate Part 1 –...

  • Page 62

    General Outline ESIEN05-04 1–44 Part 1 – System Outline...

  • Page 63

    ESIEN05-04 Specifications Part 1 Specifications What Is in This Chapter? Introduction This chapter contains the following information: Technical specifications Electrical specifications Indoor units This chapter contains the following specifications: Specifications See page 2.2–FCQ – B 1–46 2.3–FCQ – D 1–47 2.4–FFQ –...

  • Page 64: Specifications

    Specifications ESIEN05-04 FCQ – B Technical The table below contains the technical specifications. specifications Specification FCQ35B7V1 FCQ50B7V1 FCQ60B7V1 FCQ71B7V3B FCQ100B7V3B FCQ125B7V3B Heat exchanger Rows x stages x fin pitch 2 x 8 x 1.5 mm 2 x 12 x 1.5 mm Face area 0.331 m²...

  • Page 65

    ESIEN05-04 Specifications FCQ – D Technical The table below contains the technical specifications. specifications Specification FCQ71DV3B FCQ100DV3B FCQ125DV3B FCQ140DV3B Heat exchanger Rows x stages x fin pitch 2 x 10 x 1.2 mm 2 x 12 x 1.2 mm Face area 0.454 m²...

  • Page 66

    Specifications ESIEN05-04 FFQ – B Technical The table below contains the technical specifications. specifications Specification FFQ25B7V1B FFQ35B7V1B FFQ50B7V1B FFQ60B7V1B Heat exchanger Rows x stages x fin pitch 2x10x1.5 mm Face area 0.269 m² Tube type HiXSS diam. 7 Fin type Multi louver fin Air flow rate cooling (high) 9.0 m³/min...

  • Page 67

    ESIEN05-04 Specifications FBQ – B Technical The table below contains the technical specifications. specifications Specification FBQ35B7V1 FBQ50B7V1 FBQ60B7V1 FBQ71B7V3B FBQ100B7V3B FBQ125B7V3B Heat exchanger Rows x stages x fin pitch 3 x 14 x 1.75 mm Face area 0.132 m² 0.221 m² 0.338 m²...

  • Page 68

    Specifications ESIEN05-04 FDQ – B Technical The table below contains the technical specifications. specifications Specification FDQ125B7V3B FDQ200B7V3B FDQ250B7V3B Heat exchanger Rows x stages x fin pitch 3 x 14 x 1.75 mm 3 x 24 x 2.00 mm Face area 0.338 m²...

  • Page 69

    ESIEN05-04 Specifications FHQ – B Technical The table below contains the technical specifications. specifications Specification FHQ35BUV1B FHQ50BUV1B FHQ60BUV1B FHQ71BUV1B FHQ100BUV1B FHQ125BUV1B Heat exchanger Rows x stages x fin pitch 2 x 12 x 1.75 mm 3 x 12 x 1.75 mm 2 x 12 x 1.75 mm 3 x 12 x 1.75 mm Face area...

  • Page 70

    Specifications ESIEN05-04 FUQ – B Technical The table below contains the technical specifications. specifications Specification FUQ71BUV1B FUQ100BUV1B FUQ125BUV1B Heat exchanger Rows x stages x fin pitch 3 x 6 x 1.5 mm 3 x 8 x 1.5 mm Face area 0.265 m²...

  • Page 71: Technical Specifications, Electrical Specifications

    ESIEN05-04 Specifications FAQ – B Technical The table below contains the technical specifications. specifications Specification FAQ71BUV1B FAQ100BUV1B Heat exchanger Rows x stages x fin pitch 2 x 16 x 1.4 mm 2 x 12 x 1.4 mm Face area 0.289 m² 0.332 m²...

  • Page 72

    Specifications ESIEN05-04 2.10 FDEQ – B Technical The table below contains the technical specifications. specifications Specification FDEQ71B7V3B FDEQ100B7V3B FDEQ125B7V3B Heat exchanger Rows x stages x fin pitch 3 x 14 x 1.75 mm Face area 0.226 m² 0.344 m² Tube type Hi-XSS diam.

  • Page 73

    ESIEN05-04 Functional Diagrams Part 1 Functional Diagrams What Is in This Chapter? Introduction This chapter contains the following information: Functional diagrams Pipe connection diameters. Functional This chapter contains the following functional diagrams: diagrams Functional diagram See page 3.2–Indoor Piping 1–56 3.3–Pipe Connection Diameters 1–58 3.4–Piping Components...

  • Page 74: Indoor Piping

    Functional Diagrams ESIEN05-04 Indoor Piping All indoor units R3T (*) Heating Cooling Liquid piping Gas piping Indoor unit (*) Remark R3T only present on following types of indoor units: FCQ35~60B FFQ25~60B FBQ35~60B FHQ35~60B 1–56 Part 1 – System Outline...

  • Page 75

    ESIEN05-04 Functional Diagrams Piping components The table below contains the different components of the functional diagrams. Component Function / remark Flare connection See pipe connection diameter. Heat exchanger The heat exchanger is of the multi louvre fin type. Hi-X -tubes and coated waffle louvre fins are used.

  • Page 76: Pipe Connection Diameters

    Functional Diagrams ESIEN05-04 Pipe Connection Diameters Indoor units The table below contains the refrigerant pipe connection diameters. ∅ Gas pipe (flare) ∅ Liquid pipe (flare) Model FCQ35B 9.5 mm 6.4 mm FCQ50, 60B 12.7 mm 6.4 mm FCQ71, 100, 125B 15.9 mm 9.5 mm FCQ71, 100, 125D...

  • Page 77: Piping Components

    ESIEN05-04 Part 1 Piping Components Components The table below contains the different components of the functional diagrams. Component Function / remark Flare connection See pipe connection diameter. Heat exchanger The heat exchanger is of the multi louvre fin type. Hi-X -tubes and coated waffle louvre fins are used.

  • Page 78

    ESIEN05-04 1–60 Part 1 – System Outline...

  • Page 79

    ESIEN05-04 Wiring Diagrams Part 1 Wiring Diagrams What Is in This Chapter? Introduction This chapter contains the wiring diagrams of the indoor units. Indoor units: This chapter contains the following wiring diagrams: Wiring diagram See page 4.2–FCQ35, 50, 60B 1–62 4.3–FCQ71, 100, 125B 1–64 4.4–FCQ71, 100, 125, 140D...

  • Page 80: Fcq35, 50, 60b

    Wiring Diagrams ESIEN05-04 FCQ35, 50, 60B Wiring diagram The illustration below shows the wiring diagram of the unit. indoor Wired remote control outdoor Norm.emerg. Note 3 Receiver / Display unit Terminals for Operation Indicator Simultaneous Operation System Fan Operation Compressor Operation adapter for remote control wiring...

  • Page 81

    ESIEN05-04 Wiring Diagrams Float switch Wired remote control Printed circuit board Selector switch (Main/Sub) Capacitor (M2F) Fuse (5A, 250V) Receiver/display unit (attached to infrared remote control) Light emitting diode (Service monitor-green) A2P, A3P Printed circuit board Motor (Swing flap) ON/OFF button Motor (Indoor fan) Light emitting diode (on-red) Motor (Drain pump)

  • Page 82: Fcq71, 100, 125b

    Wiring Diagrams ESIEN05-04 FCQ71, 100, 125B Wiring diagram The illustration below shows the wiring diagram of the unit. indoor Wired remote control outdoor Norm.emerg. Note 3 Receiver / Display unit Terminals for Operation Indicator Simultaneous Operation System Fan Operation Compressor Operation Remote ON/OFF Forced OFF...

  • Page 83

    ESIEN05-04 Wiring Diagrams Float switch Receiver/display unit (attached to infrared remote control) Printed circuit board A2P, A3P Printed circuit board Capacitor (M2F) ON/OFF button Light emitting diode (Service monitor-green) Light emitting diode (on-red) Motor (Swing flap) Light emitting diode (timer-green) Motor (Indoor fan) Light emitting diode (filter sign-red) Motor (Drain pump)

  • Page 84: Fcq71, 100, 125, 140d

    Wiring Diagrams ESIEN05-04 FCQ71, 100, 125, 140D Wiring diagram The illustration below shows the wiring diagram of the unit. Receiver / Display Unit to Outdoor Unit Note 5 Norm.Emg. Note 5 Note 2 Central remote control In case of simultaneous operation system Wired remote control...

  • Page 85

    ESIEN05-04 Wiring Diagrams Printed circuit board (Power supply) Receiver/display unit (attached to infrared remote control) Printed circuit board (Control) Printed circuit board Printed circuit board (Humidity sensor unit) Printed circuit board Light emitting diode (Service monitor-green) Push button (ON/OFF) Magnetic relay (M1P) Light emitting diode (on-red) Motor (Indoor fan) Light emitting diode (timer-green)

  • Page 86

    Wiring Diagrams ESIEN05-04 FFQ25, 35, 50, 60B Wiring diagram The illustration below shows the wiring diagram of the unit. In case of simultaneous operation system Indoor unit Indoor unit (Master) (Slave) to Outdoor Unit : Connector discrimination colour for components. : Connector colour for components.

  • Page 87

    ESIEN05-04 Wiring Diagrams Printed circuit board Wired remote control Capacitor (M1F) Thermistor (Air) Fuse (F5A, 250V) Selector switch (Main/Sub) Light emitting diode (Service monitor-green) Magnetic relay (M1P) infrared remote control (Receiver/display unit) Motor (Indoor fan) Printed circuit board Motor (Drain pump) Printed circuit board Motor (Swing flap) Push button (ON/OFF)

  • Page 88: Fbq35, 50, 60b

    Wiring Diagrams ESIEN05-04 FBQ35, 50, 60B Wiring diagram The illustration below shows the wiring diagram of the unit. 35,50,60,CLASS outdoor indoor Wired remote control Terminals for Operation Indicator Details of Wired remote control (Optional accessory) adapter for wiring : Field wiring Switch box : Terminal : Connector...

  • Page 89

    ESIEN05-04 Wiring Diagrams Float switch Wired remote control Printed circuit board ON/OFF button Capacitor (Fan) Timer mode start/stop button Fuse (5A, 250V) BS3, BS8 Programming time button Thermal fuse (152°C) (M1F embedded) BS4, BS9 Temperature setting button Light emitting diode (Service monitor-green) Operation mode selector button Motor (Fan) Timer ON/OFF button...

  • Page 90: Fbq71b

    Wiring Diagrams ESIEN05-04 FBQ71B Wiring diagram The illustration below shows the wiring diagram of the unit. 71 CLASS outdoor indoor Wired remote control Terminals for Operation Indicator Details of Wired remote control (Optional accessory) Remote ON/OFF Forced OFF adapter for wiring Switch box : Field wiring : Terminal...

  • Page 91

    ESIEN05-04 Wiring Diagrams Float switch Wired remote control Printed circuit board ON/OFF button Capacitor (Fan) Timer mode start/stop button Thermal fuse (152°C) (M1F embedded) BS3, BS8 Programming time button Light emitting diode (Service monitor-green) BS4, BS9 Temperature setting button Motor (Fan) Operation mode selector button Motor (Drain pump) Timer ON/OFF button...

  • Page 92

    Wiring Diagrams ESIEN05-04 FBQ100, 125B Wiring diagram The illustration below shows the wiring diagram of the unit. 100,125 CLASS outdoor indoor Wired remote control Terminals for Operation Indicator Details of Wired remote control (Optional accessory) Remote ON/OFF Forced OFF adapter for wiring : Field wiring Switch box : Terminal...

  • Page 93

    ESIEN05-04 Wiring Diagrams Float switch Wired remote control Printed circuit board ON/OFF button Capacitor (Fan) Timer mode start/stop button Thermal fuse (152°C) (M1F embedded) BS3, BS8 Programming time button Light emitting diode (Service monitor-green) BS4, BS9 Temperature setting button Motor (Fan) Operation mode selector button Motor (Drain pump) Timer ON/OFF button...

  • Page 94: Fdq125, 200, 250b

    Wiring Diagrams ESIEN05-04 FDQ125, 200, 250B Wiring diagram The illustration below shows the wiring diagram of the unit. 125 CLASS Wired remote outdoor indoor control Terminals for Operation Indicator Details of Wired remote control Remote ON/OFF Forced OFF adapter for wiring Switch box : Terminal : Field wiring...

  • Page 95

    ESIEN05-04 Wiring Diagrams Printed circuit board Temperature setting button up Printed circuit board Temperature setting button down Capacitor (Fan) Operation mode selector button Thermal fuse (M1F embedded) Timer ON/OFF button Light emitting diode (Service monitor-green) BS12 Inspection/test operation button Magnetic contactor (M1F) BS14 Filter sign reset button Motor (Fan)

  • Page 96: Fhq35, 50, 60b

    Wiring Diagrams ESIEN05-04 4.10 FHQ35, 50, 60B Wiring diagram The illustration below shows the wiring diagram of the unit. In case of simultaneous operation system Indoor unit Indoor unit (Master) (Slave) : Connector discrimination colour for components. remote control : Connector colour for components. : Connector colour for printed circuit board.

  • Page 97

    ESIEN05-04 Wiring Diagrams Printed circuit board Wired remote control Capacitor (M1F) Thermistor (Air) Fuse (F5A, 250V) Selector switch (Main/Sub) Light emitting diode (Service monitor-green) Magnetic relay (M1S) infrared remote control (Receiver/display unit) Magnetic relay (M1P) Printed circuit board Motor (Indoor fan) Printed circuit board Motor (Swing flap) Push button (ON/OFF)

  • Page 98: Fhq71, 100, 125b

    Wiring Diagrams ESIEN05-04 4.11 FHQ71, 100, 125B Wiring diagram The illustration below shows the wiring diagram of the unit. In case of simultaneous operation system Indoor unit Indoor unit (Master) (Slave) remote control to Outdoor Unit Note 4 Wired remote control Note 6 Note 4 Receiver / Display unit...

  • Page 99

    ESIEN05-04 Wiring Diagrams Printed circuit board infrared remote control (Receiver/display unit) Capacitor (M1F) Printed circuit board Light emitting diode (Service monitor-green) Printed circuit board Magnetic relay (M1S) Push button (ON/OFF) Magnetic relay (M1P) Light emitting diode (on-red) Motor (Indoor fan) Light emitting diode (timer-green) Motor (Swing flap) Light emitting diode (filter sign-red)

  • Page 100: Fuq71, 100, 125b

    Wiring Diagrams ESIEN05-04 4.12 FUQ71, 100, 125B Wiring diagram The illustration below shows the wiring diagram of the unit. In case of simultaneous operation system Indoor unit Indoor unit (Master) (Slave) remote control Wired remote to Outdoor control Unit Note 4 Norm.Emg.

  • Page 101

    ESIEN05-04 Wiring Diagrams Printed circuit board Wired remote control Capacitor (M1F) Thermistor (Air) Light emitting diode (Service monitor-green) Selector switch (Main/Sub) Magnetic relay (M1S) Magnetic relay (M1P) infrared remote control (Receiver/display unit) Motor (Indoor fan) Printed circuit board Motor (Drain pump) Printed circuit board Motor (Swing flap) Push button (ON/OFF)

  • Page 102

    Wiring Diagrams ESIEN05-04 4.13 FAQ71B Wiring diagram The illustration below shows the wiring diagram of the unit. Receiver / Display unit Attached to infrared remote control) to Outdoor Unit Note 4 Note 4 In case of simultaneous Norm.Emg. Input from outside Note 2 operation system Transmission wiring...

  • Page 103

    ESIEN05-04 Wiring Diagrams Printed circuit board infrared remote control (Receiver/display unit) Light emitting diode (Service monitor-green) Printed circuit board Motor (Indoor fan) Printed circuit board Motor (Swing flap) Push button (ON/OFF) Thermistor (Air) Light emitting diode (on-red) Thermistor (Coil) Light emitting diode (timer-green) Selector switch (Emergency) Light emitting diode (filter sign-red) Terminal block...

  • Page 104

    Wiring Diagrams ESIEN05-04 4.14 FAQ100B Wiring diagram The illustration below shows the wiring diagram of the unit. In case of simultaneous operation system Indoor unit Indoor unit (Master) (Slave) remote control Wired remote control to Outdoor Unit Note 4 Norm. Emg.

  • Page 105

    ESIEN05-04 Wiring Diagrams Printed circuit board infrared remote control (Receiver/display unit) Printed circuit board (Transformer 230V/16V) Printed circuit board Capacitor (M1F) Printed circuit board Light emitting diode (Service monitor-green) Push button (ON/OFF) Magnetic relay (M1S) Light emitting diode (on-red) Magnetic relay (M1P) Light emitting diode (timer-green) Motor (Indoor fan) Light emitting diode (filter sign-red)

  • Page 106: Fdeq71b

    Wiring Diagrams ESIEN05-04 4.15 FDEQ71B Wiring diagram The illustration below shows the wiring diagram of the unit. 71 CLASS outdoor indoor Wired remote control Terminals for Operation Indicator Details of Wired remote control (Optional Accessory) Remote ON/OFF Forced OFF adapter for wiring Switch box Colors: BLK : Black...

  • Page 107

    ESIEN05-04 Wiring Diagrams Printed circuit board Wired remote control Capacitor (Fan) ON/OFF button Thermal fuse (136°C) (T1R embedded) Timer mode start/stop button Light emitting diode (Service monitor-green) BS3, BS8 Programming time button Motor (Fan) BS4, BS9 Temperature setting button Thermistor (Air) Operation mode selector button Thermistor (Coil) Timer ON/OFF button...

  • Page 108: Fdeq100b

    Wiring Diagrams ESIEN05-04 4.16 FDEQ100B Wiring diagram The illustration below shows the wiring diagram of the unit. 100 CLASS outdoor indoor Wired remote control Terminals for Operation Indicator Details of Wired remote control (Optional Accessory) Remote ON/OFF Forced OFF adapter for wiring Switch box Colors: : Field wiring...

  • Page 109

    ESIEN05-04 Wiring Diagrams Printed circuit board Wired remote control Capacitor (Fan) ON/OFF button Thermal fuse (136°C) (T1R embedded) Timer mode start/stop button Light emitting diode (Service monitor-green) BS3, BS8 Programming time button Motor (Fan) BS4, BS9 Temperature setting button Thermistor (Air) Operation mode selector button Thermistor (Coil) Timer ON/OFF button...

  • Page 110

    Wiring Diagrams ESIEN05-04 4.17 FDEQ125B Wiring diagram The illustration below shows the wiring diagram of the unit. 125 CLASS outdoor indoor Wired remote control Terminals for Operation Indicator Details of Wired remote control (Optional Accessory) Remote ON/OFF Forced OFF adapter for wiring Colors: Switch box BLK : Black...

  • Page 111

    ESIEN05-04 Wiring Diagrams Printed circuit board Wired remote control Capacitor (Fan) ON/OFF button Thermal fuse (136°C) (T1R embedded) Timer mode start/stop button Light emitting diode (Service monitor-green) BS3, BS8 Programming time button Motor (Fan) BS4, BS9 Temperature setting button Thermistor (Air) Operation mode selector button Thermistor (Coil) Timer ON/OFF button...

  • Page 112

    Wiring Diagrams ESIEN05-04 1–94 Part 1 – System Outline...

  • Page 113

    ESIEN05-04 Switch Box Layout Part 1 Switch Box Layout What Is in This Chapter? Introduction This chapter shows the switch box components. Indoor units This chapter contains the following switch box layouts: PCB layout See page 5.2–FCQ35, 50, 60, 71B 1–96 5.3–FCQ100, 125B 1–97...

  • Page 114

    Switch Box Layout ESIEN05-04 FCQ35, 50, 60, 71B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) 1–96 Part 1 – System Outline...

  • Page 115: Fcq100, 125b

    ESIEN05-04 Switch Box Layout FCQ100, 125B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) Part 1 – System Outline 1–97...

  • Page 116: Fcq71, 100, 125 140d

    Switch Box Layout ESIEN05-04 FCQ71, 100, 125 140D The illustration below shows the switch box layout: PCB1 PCB2 PCB3 X1M Item Description PCB1 Printed circuit board (A1P), power circuit PCB2 Printed circuit board (A2P), control circuit PCB3 Printed circuit board (A3P) Teminal strip (for P1/P2, F1/F2) Teminal strip ( for interconnection wiring) 1–98...

  • Page 117

    ESIEN05-04 Switch Box Layout FFQ25, 35, 50, 60B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) Part 1 – System Outline 1–99...

  • Page 118: Fbq35, 50, 60, 71, 100, 125b

    Switch Box Layout ESIEN05-04 FBQ35, 50, 60, 71, 100, 125B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) 1–100 Part 1 – System Outline...

  • Page 119

    ESIEN05-04 Switch Box Layout FDQ125, 200, 250B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) Part 1 – System Outline 1–101...

  • Page 120: Fhq35, 50, 60, 71, 100, 125b

    Switch Box Layout ESIEN05-04 FHQ35, 50, 60, 71, 100, 125B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) 1–102 Part 1 – System Outline...

  • Page 121

    ESIEN05-04 Switch Box Layout FUQ71, 100, 125B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Fan motor capacitor Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) Part 1 – System Outline 1–103...

  • Page 122

    Switch Box Layout ESIEN05-04 5.10 FAQ71B The illustration below shows the switch box layout: Item Description Printed circuit board Terminal strip (for remote control P1/P2, F1/F2, T1/T2) Terminal strip (interconnection wiring) 1–104 Part 1 – System Outline...

  • Page 123

    ESIEN05-04 Switch Box Layout 5.11 FAQ100B The illustration below shows the switch box layout: Item Description Printed circuit board Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) Part 1 – System Outline 1–105...

  • Page 124: Fdeq71, 100, 125b

    Switch Box Layout ESIEN05-04 5.12 FDEQ71, 100, 125B The illustration below shows the switch box layout: Item Description Printed circuit board Transformer Terminal strip (for remote control P1/P2) Terminal strip (interconnection wiring) 1–106 Part 1 – System Outline...

  • Page 125

    ESIEN05-04 PCB Layout Part 1 PCB Layout What Is in This Chapter? Introduction This chapter contains the following information: It describes which unit uses which PCB types It shows the PCB connectors Indoor units This chapter contains the following PCB layouts: PCB layout See page 6.2–FCQ35, 50, 60B...

  • Page 126

    PCB Layout ESIEN05-04 FCQ35, 50, 60B The illustration below shows the PCB connectors. X20A X27A X11A X10A X33A X19A X60A X61A X35A X24A X15A X25A X36A X40A X17A X18A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A...

  • Page 127

    ESIEN05-04 PCB Layout FCQ71, 100, 125B The illustration below shows the PCB connectors. X27A X11A X11A X10A X33A X19A X60A X61A X35A X20A X24A X15A X18A X36A X40A X25A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A...

  • Page 128

    PCB Layout ESIEN05-04 FCQ71, 100, 125, 140D PCB1 - Power PCB The illustration below shows the PCB1 connectors. X56A X54A X27A X25A X55A X20A Connectors The table below describes the PCB connectors. Connector Connected to Description X20A Fan motor (Power supply & feedback) X25A Drain pump motor X27A...

  • Page 129

    ESIEN05-04 PCB Layout PCB2 - Control PCB The illustration below shows the PCB2 connectors. X36A X40A X30A X57A X16A X24A X18A X35A X15A X58A X33A Connectors The table below describes the PCB connectors. Connector Connected to Description Not used X15A Float switch X16A Humidity sensor...

  • Page 130

    PCB Layout ESIEN05-04 FFQ25, 35, 50, 60B The illustration below shows the PCB connectors. X27A X11A X10A X33A X19A X60A X61A X20A X35A X24A X15A X25A X36A X40A X17A X18A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A...

  • Page 131: Fbq35, 50, 60, 71b & Fdeq71b

    ESIEN05-04 PCB Layout FBQ35, 50, 60, 71B & FDEQ71B The illustration below shows the PCB connectors. X61A X60A X33A X11A X25A X27A X15A X18A X19A X21A X17A X10A X35A X40A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A...

  • Page 132: Fbq100, 125b & Fdeq100, 125b

    PCB Layout ESIEN05-04 FBQ100, 125B & FDEQ100, 125B The illustration below shows the PCB connectors. X61A X60A X33A X11A X25A X27A X15A X18A X21A X19A X10A X40A X35A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A Transformer secondary side...

  • Page 133

    ESIEN05-04 PCB Layout FDQ125, 200, 250B The illustration below shows the PCB connectors.ì X61A X33A X11A X27A X60A X31A X18A X19A X21A X10A X40A X35A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A Transformer secondary side X11A...

  • Page 134

    PCB Layout ESIEN05-04 FHQ35, 50, 60B The illustration below shows the PCB connectors. X61A X60A X33A X11A X27A X14A X15A X40A X20A X23A X29A X18A X25A X19A X17A X35A X10A X5A X24A X26A Connectors The table below describes the PCB connectors. Connector Connected to Description...

  • Page 135

    ESIEN05-04 PCB Layout 6.10 FHQ71, 100, 125B The illustration below shows the PCB connectors. X61A X60A X33A X11A X27A X14A X15A X40A X20A X29A X18A X25A X19A X35A X10A X5A X24A X26A Connectors The table below describes the PCB connectors. Connector Connected to Description...

  • Page 136

    PCB Layout ESIEN05-04 6.11 FUQ71, 100, 125B The illustration below shows the PCB connectors. X61A X60A X11A X27A X14A X15A X20A X29A X18A X25A X19A X35A X10A X5A X24A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A...

  • Page 137

    ESIEN05-04 PCB Layout 6.12 FAQ71B The illustration below shows the PCB connectors. X27A X20A X30A X36A X35A X18A X19A X15A X24A Connectors The table below describes the PCB connectors. Connector Connected to Description X15A Connector float switch X18A Coil thermistor (liquid) X19A Air thermistor X20A...

  • Page 138

    PCB Layout ESIEN05-04 6.13 FAQ100B The illustration below shows the PCB connectors. X61A X60A X27A X11A X19A X35A X14A X15A X24A X25A X29A X98A X20A X10A X26A X18A Connectors The table below describes the PCB connectors. Connector Connected to Description Terminal strip for P1/P2 X10A X2A on A2P...

  • Page 139

    ESIEN05-04 Part 2 Functional Description What is in this part? This part contains information on the functions used to control the system. Understanding these functions is vital when diagnosing a malfunction that is related to the functional control. Overview This part contains the following chapters: Chapter See page 1–Functional concept...

  • Page 140

    ESIEN05-04 2–2 Part 2 – Functional Description...

  • Page 141: Simulated Operation Function, Restart Standby, Automatic Restart, Forced Thermostat Off, Freeze Prevention Function

    ESIEN05-04 Functional concept Part 2 Functional concept What Is in This Chapter? Introduction This chapter will explain more details about the various functions that are programmed for the Sky - Air R410A indoor units. Overview This chapter contains the following topics: Topic See page 1.2–Functions of Thermistors...

  • Page 142: Functions Of Thermistors

    Functional concept ESIEN05-04 Functions of Thermistors Locating the thermistors Remark Sensor R3T on indoor coil of FCQ35~60B7V1, FFQ35~60BV1, FBQ35~60B7V1 & FHQ35~60BUV1 is not used when the indoor units are connected to sky-air outdoor units (RR, RQ, RZQ). Functions of the thermistors Ther- Wiring...

  • Page 143: Forced Operating Mode (emergency Operation), Forced Operating Mode (emergency Operation)

    ESIEN05-04 Functional concept Forced Operating Mode (Emergency Operation) Purpose The table below describes the purpose of the forced operating mode. If... Then... R/C is defective Forced operating mode can be used to go to cooling or heat- ing. In forced operating mode, the compressor is forced to Indoor PCB is defective operate until the defective indoor or outdoor PCB is back Outdoor PCB is defective...

  • Page 144

    Functional concept ESIEN05-04 Step Action Switch ON the emergency switch on the outdoor PCB. Set the emergency switch on the outdoor PCB to the forced mode you prefer (Cooling or Heating). Turn ON the power supply. Active components Component Forced cooling Forced heating Forced defrosting Compressor...

  • Page 145: Outdoor Unit Identification Function

    ESIEN05-04 Functional concept Outdoor Unit Identification Function Purpose The purpose of the outdoor unit identification function is to enable the indoor unit to automatically determine which operating mode has to be set in function of the type of connected outdoor unit (c/o or h/p).

  • Page 146: Simulated Operation Function

    Functional concept ESIEN05-04 Simulated Operation Function Outline When a malfunction on one of the below thermistors occurs, operation will continue while displaying the applicable alarm on the remote-controller. Fin thermistor malfunction is only displayed when pressing the "Inspection" button on the remote-controller. Sensors Outside temperature thermistor Outdoor heat exchanger thermistor...

  • Page 147: Restart Standby

    ESIEN05-04 Functional concept Restart Standby Outline To prevent the compressor from frequently turning ON and OFF and allow pressure equalization, forced thermostat OFF will be conducted for 3 minutes after compressor stopping (compressor guard timer). Graph Restart standby Thermostat OFF complete Compressor Moves to “Stop”...

  • Page 148: Automatic Restart

    Functional concept ESIEN05-04 Automatic Restart Purpose The purpose of the auto-restart function is to automatically resume the same operating mode as when the unit was operating when the power supply is restored after a power failure. Do not use the "Automatic Restart" function to daily start/stop the unit. Precautions when When you have to turn OFF the power supply in order to carry out maintenance, make sure to turn turning OFF power...

  • Page 149: Using Conditions For Remote Control Thermostat

    ESIEN05-04 Functional concept Using Conditions for remote control Thermostat Applicable The remote control thermostat is only available in wired remote controls. Method Unlike with VRV units, the remote control sensor is standard disabled for sky-air units. The use of the remote control sensor can be enabled by changing field setting 10(20)-2-02 to 10(20)-2-01.

  • Page 150

    Functional concept ESIEN05-04 And assuming suction temperature has changed from 30°C to 18°C (F --> A): Body thermostat sensor is used for temperatures from 30°C to 25°C (F --> D). remote control thermostat sensor is used for temperatures from 25°C to 21°C (D --> B). Body thermostat sensor is used for temperatures from 21°C to 18°C (B -->...

  • Page 151: Forced Thermostat Off

    ESIEN05-04 Functional concept Forced Thermostat OFF Outline The unit will perform the forced thermostat off function in following conditions: Condition 1 Thermostat off due to freeze-up prevention. (cooling) Prevent the indoor unit heat exchanger from freezing in cooling operation when one of the below conditions is applicable: Indoor unit heat exchanger temperature <...

  • Page 152: Freeze Prevention Function

    Functional concept ESIEN05-04 1.10 Freeze Prevention Function Purpose In order to avoid formation of ice on the indoor unit heat exchanger in cooling and dry mode, the system automatically starts up a freeze prevention cycle when a number of specific conditions are fulfilled.

  • Page 153: Pmv Control

    ESIEN05-04 Functional concept 1.11 PMV Control Applicable units All inverter R410A sky-air Outline When the automatic mode is selected on the remote-controller, the unit will automatically activate the PMV control. The PMV index is a calculated average comfort level. Refer to ISO 7730 for details. Function An optimized indoor temperature will be calculated using the following inputs: Outdoor air temperature...

  • Page 154: Thermostat Control

    Functional concept ESIEN05-04 1.12 Thermostat Control Purpose Based on the information received from the air return sensor, the thermostat control will decide the required operation status of the system. Thermostat control Cooling mode: Set point Thermostat ON –0.5 K +1 K Thermostat OFF Heating mode: Set point...

  • Page 155: Drain Pump Control

    ESIEN05-04 Functional concept 1.13 Drain Pump Control Purpose Control the water draining from the drain pan. Starting conditions The drain pump control starts the drain pump motor when one of the following conditions is fulfilled: Cooling operation is activated Abnormal high water level is detected in the drain pan Normal control In normal control, the drain pump is turned ON at compressor starting and turned OFF 5 minutes after the compressor has stopped (residual operation).

  • Page 156

    Functional concept ESIEN05-04 Float switch 1 The thermostat is immediately turned OFF. activation during 2 The drain pump continues to operate for minimum 10 minutes (even if abnormality is solved within thermostat ON the 10 minutes). 3 If the float switch closes again within 80 seconds, cooling operation can restart within the 10 minutes recovery period.

  • Page 157: Condensation Avoidance Control

    ESIEN05-04 Functional concept 1.14 Condensation Avoidance Control Purpose Avoid condensation on the swing flap when the most downward position of the swing flap (position 4) is selected on the remote control. Applicable units This function is applicable for the FHQ units only. Method The condensation avoidance control will function in the following operating modes: Cooling (automatic)

  • Page 158

    Functional concept ESIEN05-04 1.15 Draft Avoidance Control 1 Purpose Avoid draft for the customer by delaying transfer of the flap to the Po0 (horizontal) position for a certain amount of time when defrosting and in heating thermostat OFF. Heating thermostat The time chart below illustrates the draft avoidance control 1 in heating thermostat OFF.

  • Page 159

    ESIEN05-04 Functional concept 1.16 Draft Avoidance Control 2 Purpose The purpose of the draft avoidance control 2 is to avoid draft when the flap is moving. Starting conditions The draft avoidance control 2 is activated when: Hot start is finished, or Cold air prevention control is finished.

  • Page 160: Fan And Flap Operations

    Functional concept ESIEN05-04 1.17 Fan and Flap Operations Cooling operation The table below contains the fan and flap operations. Function In… Flap (FCQ and Flap (FAQ) Remote control FHQ) indication Thermostat ON Swing operation Swing Swing Swing in Dry Keep Airflow direction setting Set position Set position...

  • Page 161: Indoor Unit Fan Control

    ESIEN05-04 Functional concept 1.18 Indoor Unit Fan Control Outline During compressor start and stop control, the indoor fan will receive instruction from the outdoor unit in order to protect the compressor from receiving liquid and to assure a smooth compressor start up: Indoor fan control before compressor stop Indoor fan control during compressor stop Indoor fan control before compressor startup...

  • Page 162

    Functional concept ESIEN05-04 At compressor In cooling: The indoor fan is operated at low speed until the low-pressure value reaches 6 bar. startup In heating: Hot startup controlWhen performing a startup, or after the defrosting cycle has been completed, the indoor fan will be controlled as to prevent cold air draft and secure the starting performance (quick pressure build-up).

  • Page 163: Additional Checks For Troubleshooting

    ESIEN05-04 Part 3 Troubleshooting What is in this part? This part contains the following chapters: Chapter See page 1–Troubleshooting 3–3 2–Error Codes 3–31 1–Error Codes: System Malfunctions 3–3 4–Additional Checks for Troubleshooting 3–53 Part 3 – Troubleshooting 3–1...

  • Page 164

    ESIEN05-04 3–2 Part 3 – Troubleshooting...

  • Page 165: What Is In This Chapter, Checks, Overview Of General Problems

    ESIEN05-04 Troubleshooting Part 3 Troubleshooting What Is in This Chapter? Introduction When a problem occurs, you have to check all possible malfunctions. This chapter gives a general idea of where to look for malfunctions. Not all repair procedures are described. Some procedures are considered common practice. Overview This chapter contains the following topics: Topic...

  • Page 166: Troubleshooting

    Troubleshooting ESIEN05-04 General Troubleshooting Flowchart Find out the situation according to the following procedure when there is a request for service from the customer. Troubleshooting by remote Turn the power supply Refer to "Remote controller display Wait until controller malfunction switch ON or replace malfunction code and contents".

  • Page 167: Overview Of General Problems

    ESIEN05-04 Troubleshooting Overview of General Problems Overview Equipment Condition Remedy Equipment does not operate. See page 3-6 Fan operates, but compressor does not. See page 3-8 Cooling/heating operation starts but stops See page 3-10 immediately. Equipment operates but does not provide See page 3-12 heating.

  • Page 168: Equipment Does Not Operate

    Troubleshooting ESIEN05-04 1.3.1 Equipment does not operate Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Causes Fuse blown or disorder of contact in operation circuit Faulty operation switch or contact point Faulty high pressure switch Faulty magnetic switch for fan motor Activation or fault of overcurrent relay for fan motor Faulty overcurrent relay for compressor...

  • Page 169

    ESIEN05-04 Troubleshooting Troubleshooting Is power switch OFF or fuse for Turn on power switch or replace power switch fuse. blown? If high-harmonics circuit breaker is not used on inverter compressor, have the circuit breaker replaced. Is there power failure? Wait until power returns. Normal.

  • Page 170

    Troubleshooting ESIEN05-04 1.3.2 Indoor fan operates, but compressor does not Applicable Model All models of SkyAir series Method of Malfunction Detection Malfunction Decision Conditions Possible Causes Faulty thermistor Faulty indoor/outdoor unit PCB Faulty magnetic switch Faulty power transistor Faulty compressor 3–8 Part 3 –...

  • Page 171

    ESIEN05-04 Troubleshooting Troubleshooting · Indoor unit fan runs at set airflow rate. · (In cooling operation) When air thermistor ambient temperature is higher than set temperature · (In heating operation) When air thermistor ambient temperature is lower than set temperature Is the power switch OFF or the fuse for Turn on the power...

  • Page 172

    Troubleshooting ESIEN05-04 1.3.3 Cooling/heating operation starts but stops immediately Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Excess charge of refrigerant Air intrudes into refrigerant system Faulty pressure switch Faulty magnetic switch for outdoor unit fan motor Faulty aux.

  • Page 173

    ESIEN05-04 Troubleshooting Troubleshooting Is the type of wired the operation Diagnose based on the remote controller wired or lamp of remote controller flashing? wireless? error code on remote controller Wireless Is the operation lamp of indoor unit photo-sensing section flashing? Heating: Indoor unit Cooling: Outdoor unit Malfunction of fan motor...

  • Page 174: Equipment Operates But Does Not Provide Heating

    Troubleshooting ESIEN05-04 1.3.6 Equipment operates but does not provide heating Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Excess charge of refrigerant Air intrudes into refrigerant system Faulty pressure switch Faulty magnetic switch for outdoor unit fan motor Faulty aux.

  • Page 175

    ESIEN05-04 Troubleshooting Troubleshooting Is the unit Wait for a while. in defrost mode? No abnormality Measure the temperature of suction air and supply air. Temperature difference = Suction air temp. – Supply air temp. Temperature Does the difference for heating heat load increase after No abnormality should be between 14...

  • Page 176: Equipment Discharges White Mist

    Troubleshooting ESIEN05-04 1.3.7 Equipment discharges white mist Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Humid installation site Installation site is dirty and with dense oil mists. Soiled heat exchanger Clogged air filter Malfunction of fan motor Troubleshooting Is the room...

  • Page 177: Equipment Produces Loud Noise Or Shakes

    ESIEN05-04 Troubleshooting 1.3.8 Equipment produces loud noise or shakes Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Excess charge of refrigerant Air intrudes into refrigerant system Flushing noise due to refrigerant shortage. (Sound of shoo...) Troubleshooting [Installation work side] Does...

  • Page 178: Equipment Discharges Dust

    Troubleshooting ESIEN05-04 1.3.9 Equipment discharges dust Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Carpet Animal's hair Application (cloth shop,...) Troubleshooting Does the trouble generate at the time of operation start again after Dust collected inside the indoor extended period of unit are blown out.

  • Page 179

    ESIEN05-04 Troubleshooting 1.3.10 remote control LCD displays "88" Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Troubleshooting Trouble generates just after power The unit is checking to confirm supply ON that remote controller is normal. Indication appears for short time.

  • Page 180: Swing Flap Does Not Operate

    Troubleshooting ESIEN05-04 1.3.11 Swing flap does not operate Applicable Models FUQ, FHQ, FAQ100 Method of Utilizes ON/OFF of the limit switch when the motor turns. Malfunction Detection Malfunction When ON/OFF of the micro switch for positioning cannot be reversed even through the swing flap Decision motor for a specified amount of time (about 30 seconds).

  • Page 181

    ESIEN05-04 Troubleshooting Troubleshooting the connectors correctly connected to Connect correctly. X29A and X14A on the PC board? the limit switch’s transfer Connect correctly. connector correctly connected? Turn the power supply off once and back on, and check whether the swing flap motor swings when the power supply is turned back on.

  • Page 182

    Troubleshooting ESIEN05-04 Procedure of Self-Diagnosis by remote control The inspection/test The following modes can be selected by using the [Inspection/Test Operation] button on the button remote control. Depress Inspection/Test Operation button for more than 4 seconds. Service data can be obtained. Indoor unit settings can be made.

  • Page 183

    ESIEN05-04 Troubleshooting Fault-diagnosis by Wired remote control Explanation If operation stops due to malfunction, the remote control’s operation LED blinks, and malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are displayed when inspection mode is entered.) The malfunction code enables you to tell what kind of malfunction caused operation to stop.

  • Page 184

    Troubleshooting ESIEN05-04 Fault-diagnosis by infrared remote control Introduction Contrary to the wired remote control, the infrared remote control does not display the error code. Instead, the operation LED on the light reception section flashes. Checking To find the error code, proceed as follows: Step Action Press the INSPECTION/TEST button to select “inspection”.

  • Page 185

    ESIEN05-04 Troubleshooting Step Action Press the UP or DOWN button and change the UNIT No. until the receiver of the remote control starts to beep. DOWN If you hear... Then... 3 short beeps Follow all steps below. 1 short beep Follow steps 3 and 4.

  • Page 186

    Troubleshooting ESIEN05-04 Step Action Press the UP or DOWN button to change the error code upper digit until the receiver of the remote control starts to beep. DOWN DOWN If you hear... Then... 2 short beeps The upper digit matches. 1 short beep No digits match.

  • Page 187

    ESIEN05-04 Troubleshooting Step Action Press the UP or DOWN button and change the error code lower digit until the receiver of the remote control generates a continuous beep. DOWN DOWN Press the MODE button to return to normal status. If you do not press any button for at least 1 min, the remote control returns automatically to normal status.

  • Page 188

    Troubleshooting ESIEN05-04 Overview of Error Codes Malfunction Code Contents/Processing Remarks Failure of PC board ass’y for indoor unit Malfunction of drain water level system Indoor unit fan motor overload / overcurrent / lock (Note 1) Abnormal drain water level Activation of float switch during compressor off. Failure of capacity setting Either capacity data is set incorrectly, or capacity has not been set for the data IC...

  • Page 189: Troubleshooting By Led Indications On The Indoor Unit

    ESIEN05-04 Troubleshooting Troubleshooting by LED Indications on the Indoor Unit Foreword Troubleshooting can be carried out by service monitor LED (green). (Blinks when normal) : LED on / : LED off / : LED blinks / — : No connection with troubleshooting Microcomputer Transmission Normal Monitor...

  • Page 190

    Troubleshooting ESIEN05-04 Troubleshooting by remote control Display / LED Display Explanation for : LED blinks / : LED on / : LED off / — : No connection with troubleshooting Symbols : High probability of malfunction : Possibility of malfunction : Low probability of malfunction —...

  • Page 191: System Malfunctions

    ESIEN05-04 Troubleshooting 1.9.2 System Malfunctions Outdoor Unit remote Location of Malfunction Contents of Malfunction Details of Malfunction control Malfunction Other PC Board Display (Reference than PC Page) Outdoor Indoor remote Board Unit Unit control — Transmission error (between 3–4 or UF indoor and outdoor unit) —...

  • Page 192: Overview Of The Indoor Safety Devices, Fcq35, 50, 60, 71b, Fcq100, 125b

    Troubleshooting ESIEN05-04 1.10 Overview of the Indoor Safety Devices Thermal protector Thermal fuse fan motor Abnormal Reset (automatic) FCQ35, 50, 60, 71B >130°C +/-5°C <83°C +/-20°C N.A. FCQ100, 125B >140°C +/-5°C <45°C +/-15°C N.A. FCQ71, 100, 125, 140D N.A. N.A. N.A.

  • Page 193

    ESIEN05-04 Error Codes Part 3 Error Codes What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote control display. The error code helps you to find the cause of the problem. Shutdown For some errors, the system only shuts down when the error occurs several times.

  • Page 194

    Error Codes ESIEN05-04 Malfunctioning Indoor PCB (A1) Error code LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal Malfunctioning — — Error generation The error is generated when the data from the EEPROM is not received correctly. EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its content without power.

  • Page 195

    ESIEN05-04 Error Codes Malfunction of Drain Water Level System (A3) Error code LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal Malfunctioning Error generation The error is generated when the water level reaches its upper limit and when the float switch turns OFF.

  • Page 196

    Error Codes ESIEN05-04 Troubleshooting Begin short-circuit Connect the the unit a optional drain connector connected to X15A Short-circuit cassette or built-in raising mechanism on the indoor unit type? connector. connected? PCB? Check the continuity of the short-circuit connector. a drain Replace the pump connected to Connect the...

  • Page 197

    ESIEN05-04 Error Codes Malfunctioning Drain System (AF) Error code LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal Malfunctioning Error generation The error is generated when the float switch changes from ON to OFF while the compressor is OFF. Causes The possible causes are: Error in the drain pipe installation...

  • Page 198

    Error Codes ESIEN05-04 Indoor Unit Fan Motor Lock (A6) Error code LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal Malfunctioning Error generation The error is generated when the fan rotations are not detected while the output voltage to the fan is at its maximum.

  • Page 199

    ESIEN05-04 Error Codes Troubleshooting Check the connections of X20A and X26A. Are X20A Connect X20A and X26A properly and X26A connected? correctly. Unplug X26A and switch the power supply on. Check the voltage between pins 1 and 3 of X26A. Replace indoor Is there about 12 unit PCB.

  • Page 200

    Error Codes ESIEN05-04 Malfunctioning Capacity Setting (AJ) Error code LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal Malfunctioning Error generation The error is generated when the following conditions are fulfilled: Condition Description The unit is in operation. The PCB’s memory IC does not contain the capacity code.

  • Page 201

    ESIEN05-04 Error Codes Troubleshooting Check if the capacity setting adapter is plugged into X23A of the indoor PCB. capacity setting Plug a capacitor setting adapter plugged into adapter that matches the X23A of the indoor capacity of the unit into X23A. unit PCB? Switch the power supply off and...

  • Page 202

    Error Codes ESIEN05-04 Thermistor Abnormality (C4, C5, C9) Error code The table below describes the two thermistor abnormalities. Error Description Malfunctioning heat exchanger thermistor system. Malfuncioning gaspipe thermistor system. Malfunctioning suction air thermistor system. LED indications The table below shows the LED indications. Operation HAP (green) HBP (green)

  • Page 203

    ESIEN05-04 Error Codes Troubleshooting Check the connector connection. Correct the connected connection. properly? Check the thermistor resistance. Replace the it normal? thermistor. Check the contact between thermistor and PCB. Correct contact contact OK? C4: Indoor liquid pipe thermistor (R2T). C5: Gaspipe thermistor (R3T) C9: Air suction thermistor (R1T).

  • Page 204

    Error Codes ESIEN05-04 Malfunctioning remote control Air Thermistor (CJ) Error code LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal Malfunctioning Error generation The error is generated when the remote control thermistor becomes disconnected or shorted while the unit is running.

  • Page 205

    ESIEN05-04 Error Codes Malfunctioning of Moisture Sensor System (CC) Remote controller display Applicable FCQ-D models Method of Even if a malfunction occurs, operation still continues. malfunction Malfunction is detected according to the moisture (output voltage) detected by the moisture detection sensor.

  • Page 206

    Error Codes ESIEN05-04 3–44 Part 3 – Troubleshooting...

  • Page 207

    ESIEN05-04 Part 4 Commissioning and Test What is in this part? This part contains the following chapters: Chapter See page 2–Pre-Test Run Checks 4–11 3–Field Settings 4–17 4–Test Run and Operation Data 4–31 Part 4 – Commissioning and Test Run 4–1...

  • Page 208

    ESIEN05-04 4–2 Part 4 – Commissioning and Test Run...

  • Page 209

    ESIEN05-04 Error Codes: System Malfunctions Part 4 Error Codes: System Malfunctions What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote control display. The error code helps you to find the cause of the problem. Overview This chapter contains the following topics: Topic...

  • Page 210: Malfunction Of Transmission Between Indoor And Outdoor Unit (u4 Or Uf), Between Indoor/outdoor Unit (u4/uf)

    Error Codes: System Malfunctions ESIEN05-04 Malfunction of Transmission between Indoor and Outdoor Unit (U4 or UF) Error code Error generation The error is generated when the microprocessor detects that the transmission between the indoor and the outdoor unit is not normal over a certain amount of time. Causes The possible causes are: Wiring indoor-outdoor transmission wire is incorrect...

  • Page 211

    ESIEN05-04 Error Codes: System Malfunctions Troubleshooting 2 Continued from previous page NO (ON or OFF) Is HAP flashing? Turn the power supply Check of off once and then back on. outdoor unit microcomputer normal HAP Resets normally. Is HAP flashing? Could be outside cause (noise...).

  • Page 212

    Error Codes: System Malfunctions ESIEN05-04 Malfunction of Transmission between Indoor Unit and remote control (U5) Error code Error generation The error is generated when the microprocessor detects that the transmission between the indoor unit and the remote control is not normal over a certain amount of time. Causes The possible causes are: Malfunctioning remote control...

  • Page 213

    ESIEN05-04 Error Codes: System Malfunctions Malfunction of Transmission between MAIN remote control and SUB remote control (U8) Error code Error generation The error is generated when, in case of controlling with two remote controls, the microprocessor detects that the transmission between the indoor unit and the remote controls (MAIN and SUB) is not normal over a certain amount of time.

  • Page 214

    Error Codes: System Malfunctions ESIEN05-04 Malfunctioning Field Setting Switch (UA) Error code Error generation The error is generated when incorrect field settings have been set for pair/twin/triple/double twin. Causes The possible causes are: Malfunctioning indoor or outdoor unit PCB Malfunctioning power supply PCB Indoor-outdoor, indoor-indoor unit transmission wiring Malfunctioning remote control wiring.

  • Page 215

    ESIEN05-04 Error Codes: System Malfunctions Troubleshooting Is the remote control connected to more than Connect the remote controller correctly. one indoor unit? Is the outdoor unit used for Check setting "No. of Connected Twin Twin system? System Indoor Units" of indoor unit. Is the setting of Pair/Twin/Triple set Set correctly.

  • Page 216

    Error Codes: System Malfunctions ESIEN05-04 Centralized Address Setting Error (UC) remote control Display Applicable Models All indoor unit models Method of Indoor unit microcomputer detects and judges the centralized address signal according to the Malfunction transmission between indoor units. Detection Malfunction When the microcomputer judges that the centralized address signal is duplicated Decision...

  • Page 217

    ESIEN05-04 Pre-Test Run Checks Part 4 Pre-Test Run Checks What Is in This Chapter? Introduction This chapter contains the following information: Checks before test run Test run checks Setting the address for the receiver of the infrared remote control Setting the address for the infrared remote control Overview This chapter contains the following topics: Topic...

  • Page 218: Test Run Checks

    Pre-Test Run Checks ESIEN05-04 Test Run Checks Checks before test Before carrying out a test run, proceed as follows: Step Action Make sure the voltage at the primary side of the safety breaker is: 230 V ± 10% Fully open the liquid and the gas stop valve. Test run checks To carry out a test run, check the following: Check that the temperature setting of the remote control is at the lowest level in cooling mode or...

  • Page 219

    ESIEN05-04 Pre-Test Run Checks Setting the infrared remote control Introduction To set the infrared remote control, you have to set the address for: The receiver of the infrared remote control The infrared remote control. Setting the address The address for the receiver of the infrared remote control is factory set to 1. To change this setting, for the receiver proceed as follows: Step...

  • Page 220

    Pre-Test Run Checks ESIEN05-04 Setting the address The address for the infrared remote control is factory set to 1. To change this setting, proceed as for the infrared follows: remote control Step Action Hold down the FILTER RESET button and the TEST button for at least 4 s, to go to field set mode.

  • Page 221

    ESIEN05-04 Pre-Test Run Checks Step Action Press the UP and DOWN buttons to set the address. Set the same address as the receiver (1, 2 or 3). The receiver does not work with addresses 4, 5 and 6. DOWN Press the RESERVE button to confirm the setting. RESERVE Part 4 –...

  • Page 222

    Pre-Test Run Checks ESIEN05-04 Step Action Press the TEST button to quit the field set mode and return to the normal display. ON / OFF TEMP TIME ˚C DOWN RESERVE CANCEL TIMER MODE SWING /TEST TEST Multiple settings When an outside control (central remote control...) controls an indoor unit, sometimes the indoor unit does not respond to ON/OFF and temperature settings commands from this controller.

  • Page 223

    ESIEN05-04 Field Settings Part 4 Field Settings What Is in This Chapter? Introduction This chapter contains the following information: How to change the field settings The field settings The factory settings. Overview This chapter contains the following topics: Topic See page 3.2–How to Change the Field Settings with the Wired remote control 4–18 3.3–How to Change the Field Settings with the infrared remote control...

  • Page 224: How To Change The Field Settings With The Wired Remote Control

    Field Settings ESIEN05-04 How to Change the Field Settings with the Wired remote control Installation The field settings have to be changed with the remote control according to the installation conditions. conditions Wired remote The illustration below shows the wired remote control. control 23 7 Components...

  • Page 225

    ESIEN05-04 Field Settings Setting To set the field settings, you have to change: “Mode No.” “First code No.” “Second code No.”. To change the field settings, proceed as follows: Step Action Hold down the INSPECTION/TEST button for at least 4 s during normal mode to enter the “Field setting mode”.

  • Page 226: How To Change The Field Settings With The Infrared Remote Control

    Field Settings ESIEN05-04 How to Change the Field Settings with the infrared remote control Optional If optional accessories are mounted on the indoor unit, the indoor unit setting may have to be changed. accessories Refer to OH98-2 or the installation manual (optional handbook) for each optional accessory. infrared remote The illustration below shows the infrared remote control.

  • Page 227: Overview Of The Field Settings On The Indoor Units

    ESIEN05-04 Field Settings Overview of the Field Settings on the Indoor Units Field settings The table below contains the possible field settings of all indoor units. Mode First Second code No. Description of the setting code No. 10 or 20 Filter counter Light heavy...

  • Page 228: Overview Of The Factory Settings On The Indoor Units

    Field Settings ESIEN05-04 Overview of the Factory Settings on the Indoor Units Factory settings The table below contains the factory settings of all indoor units Mode No. First code Second code No. FDQ, FEDQ 10 or 20 — — — 11 or 21 12 or 22 —...

  • Page 229: Setting The Ceiling Height

    ESIEN05-04 Field Settings Setting the Ceiling Height Incorrectly setting If you set the controller incorrectly, a connection mistake malfunction “UA” will appear on the remote control display. See ’Malfunctioning Field Setting Switch (UA)’ on page 3–8. Mode No. 13 or 23 Set the second code No., according to the tables below.

  • Page 230: Setting The Filter Counter

    Field Settings ESIEN05-04 Setting the Filter Counter Mode No. 10 or 20 When the filter counter indication time is set to ON, set the second code No., according to the table First code No. 0 below Unit Mode No. First code No. Second code No.

  • Page 231

    ESIEN05-04 Field Settings Note: Monitoring mode THERMO LL speed or set speed INDOOR 6 min 6 min 1 min 1 min Air flow direction Set the air flow direction of the indoor units as given in the table below. This setting is needed when setting the optional air outlet blocking pad has been installed.

  • Page 232: Main/sub Setting When Using Two Remote Controls

    Field Settings ESIEN05-04 MAIN/SUB Setting when Using Two remote controls Situation The MAIN/SUB setting is necessary when one indoor unit is controlled by two remote controls. When you use two remote controls (control panel and separate remote control), set one to MAIN and the other to SUB.

  • Page 233: Setting The Centralized Group No

    ESIEN05-04 Field Settings Setting the Centralized Group No. When? If you want to carry out centralized control with a central remote control and a unified ON/OFF controller, you have to set the group No. for each group with the remote control. Wired remote The illustration below shows the wired remote control.

  • Page 234: The Field Setting Levels

    Field Settings ESIEN05-04 3.10 The Field Setting Levels Introduction The three field setting levels are: Inspection level Monitoring level Maintenance mode settings. The inspection level The inspection level is the highest level of the three field setting levels. You can change the views in the inspection level by pressing the INSPECTION/TEST button.

  • Page 235

    ESIEN05-04 Field Settings Possible system The table below contains the possible system settings, which are displayed on the remote control if settings the TEST button is pushed twice shortly. Size Type Software Settings Display Settings Display FDQ, FDEQ — Changing the mode To enter the monitoring level and to change the maintenance mode settings, proceed as follows: settings Step...

  • Page 236

    Field Settings ESIEN05-04 Maintenance Mode The table below describes the maintenance mode settings. Settings Mode No. Function Content and operation method Example of the remote control display Display malfunction history Past error code The history No. can be changed with the pro- Unit No.

  • Page 237

    ESIEN05-04 Test Run and Operation Data Part 4 Test Run and Operation Data Introduction This chapter contains the following information: General operation data Overview This chapter contains the following topics: Topic See page 4.1–General Operation Data 4–32 Part 4 – Commissioning and Test Run 4–31...

  • Page 238: General Operation Data

    Test Run and Operation Data ESIEN05-04 General Operation Data Guide Lines for The operation value guide lines when operating under standard conditions (at Rated frequency) by Optimal Operation pushing the test run button on the remote control are as given in the table below. Condition Indoor Unit Fan: “H”...

  • Page 239

    ESIEN05-04 Test Run and Operation Data Standard Conditions Indoor Unit Conditions Outdoor Unit Conditions Cooling Operation 27°C DB/19°C WB 35°C DB Heating Operation 20°C DB 7°C DB/6°C WB During or after maintenance, when the power supply is turned back on, operation restarts automatically by the “auto restart function.”...

  • Page 240

    Test Run and Operation Data ESIEN05-04 Correlation of What happens in comparison to normal values is summarized in the table below. Air-Conditioner’s (Measured from 15 ~ 20 minutes or more after operation starts.) Operation Status and Pressure / Running Current When Cooling Air-Conditioner Status Low Pressure...

  • Page 241

    ESIEN05-04 Part 5 Disassembly and Maintenance What is in this part? This part contains the following chapters: Chapter See page 1–Disassembly and Maintenance 5–3 Part 5 – Disassembly and Maintenance 5–1...

  • Page 242

    ESIEN05-04 5–2 Part 5 – Disassembly and Maintenance...

  • Page 243

    ESIEN05-04 Disassembly and Maintenance Part 5 Disassembly and Maintenance What Is in This Chapter? Introduction This chapter contains the following information on the indoor units: Exploded views Components Disassembly procedures Exploded views and This chapter contains the following topics: components Topic See page 1.2–FCQ35, 50, 60, 71B...

  • Page 244

    Disassembly and Maintenance ESIEN05-04 FCQ35, 50, 60, 71B Exploded view The illustration below shows the exploded view. 5–4 Part 5 – Disassembly and Maintenance...

  • Page 245

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Heat exchanger assy Drain pump B1.1 Branch pipe (FCQ35) Float switch B1.1 Distributor with filter Fan motor B1.2 Single union joint Casing assy B1.3 Single union joint Inspection cover assy...

  • Page 246

    Disassembly and Maintenance ESIEN05-04 FCQ100, 125B Exploded view The illustration below shows the exploded view. 5–6 Part 5 – Disassembly and Maintenance...

  • Page 247

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Heat exchanger assy Fan motor B1.1 Distributor with filter Casing assy B1.2 Single union joint Inspection cover assy B1.3 Single union joint Drain pan assy B1.4 Flare nut F8.1...

  • Page 248

    Disassembly and Maintenance ESIEN05-04 FFQ25, 35, 50, 60B Exploded view The illustration below shows the exploded view. 5–8 Part 5 – Disassembly and Maintenance...

  • Page 249

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Heat exchanger assy Lock metal B1-1 Header assy Single phase AC fan motor B1-1-1 Single union joint 3/8 Vibro-isolating bolt (Only for FFQ25 and FFQ35) Vibration isolator B1-1-1 Single union joint 1/2...

  • Page 250

    Disassembly and Maintenance ESIEN05-04 FBQ35, 50B Exploded view The illustration below shows the exploded view. 5–10 Part 5 – Disassembly and Maintenance...

  • Page 251

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Top plate assy Plain washer Right plate assy Fitting bolt drain pump Left plate assy Fan assy Interchangeable plate 31.1 Fan top plate Small bottom plate 31.2 Fan housing bottom...

  • Page 252

    Disassembly and Maintenance ESIEN05-04 FBQ60, 71B Exploded view The illustration below shows the exploded view. 5–12 Part 5 – Disassembly and Maintenance...

  • Page 253

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Top plate assy Plain washer Right plate assy Fitting bolt drain pump Left plate assy Fan assy Interchangeable plate 31.1 Fan top plate Small bottom plate 31.2 Fan housing bottom...

  • Page 254

    Disassembly and Maintenance ESIEN05-04 FBQ100, 125B Exploded view The illustration below shows the exploded view. 5–14 Part 5 – Disassembly and Maintenance...

  • Page 255

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Top plate assy Fan assy Right plate assy 31.1 Fan top plate Left plate assy 31.2 Fan housing bottom Interchangeable plate 31.3 Fan housing top Small bottom plate 31.4 Rotor assy...

  • Page 256

    Disassembly and Maintenance ESIEN05-04 FDQ125, 200, 250B Exploded view The illustration below shows the exploded view. 5–16 Part 5 – Disassembly and Maintenance...

  • Page 257

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Top plate assy 6.22 Thermistor Fan assy + fan mounting plate 6.23 Tie wrap with clip Side plate right 6.24 PCB assy Side plate left 6.25 Power supply transformer Service cover assy...

  • Page 258

    Disassembly and Maintenance ESIEN05-04 FDEQ71, 100B Exploded view The illustration below shows the exploded view. 5–18 Part 5 – Disassembly and Maintenance...

  • Page 259

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Top plate assy Discharge plate assy Suction plate assy Bottom assy Air filter Filter holding plate Fan assy Hook Fan top plate assy Pipe support plate Fan housing bottom (large) Pipe sealing...

  • Page 260

    Disassembly and Maintenance ESIEN05-04 1.10 FDEQ125B Exploded view The illustration below shows the exploded view. 5–20 Part 5 – Disassembly and Maintenance...

  • Page 261

    ESIEN05-04 Disassembly and Maintenance Components The table below contains the components of the exploded view. Component Component Top plate assy Flare nut 5/8 Suction plate assy Drain pan sealing assy Air filter Drain pan fixing Fan assy Discharge plate assy Fan top plate assy Bottom assy Fan housing bottom (small)

  • Page 262: Table Of Contents

    Disassembly and Maintenance ESIEN05-04 1.11 FCQ71, 100, 125, 140D Overview This part contains the following topics: Topic See page Removal of Suction Grille 5–23 Removal of Air Filter 5–24 Removal of Decoration Panel 5–26 Removal of Horizontal Blade 5–28 Removal of Swing Motor 5–29 Removal of Switch Box 5–31...

  • Page 263: Removal Of Suction Grille

    ESIEN05-04 Disassembly and Maintenance 1.11.1 Removal of Suction Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the suction grille Push the buttons and pull down Push the 2 buttons When closing, push up the simultaneously and pul...

  • Page 264: Removal Of Air Filter

    Disassembly and Maintenance ESIEN05-04 1.11.2 Removal of Air Filter Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the air filter Open the suction grille. (Refer to the procedure for removing the suction grille.)

  • Page 265

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points 2 Mounting the air filter Hook the air filter on projections at the top of Force the bottom of the air filter into projections at the bottom of the suction grille to secure the air filter.

  • Page 266: Removal Of Decoration Panel

    Disassembly and Maintenance ESIEN05-04 1.11.3 Removal of Decoration Panel Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the decoration Remove a string (provided to covers in the corner of prevent the decoration cover decoration panel...

  • Page 267

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Remove the 2 mounting fixtures on the outside (Section A), then remove Decoration panel the 2 mounting fixtures on the inside (Section B). String Mounting fixture Mounting fixture Mounting fixture Mounting the decoration Remove the decoration coverin the corner panel.

  • Page 268: Removal Of Horizontal Blade

    Disassembly and Maintenance ESIEN05-04 1.11.4 Removal of Horizontal Blade Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove 4 screws each (16 screws in total) to dismount the 4 seal materials.

  • Page 269: Removal Of Swing Motor

    ESIEN05-04 Disassembly and Maintenance 1.11.5 Removal of Swing Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the decoration cover in the corner located right below the refrigerant piping.

  • Page 270

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Caution during swing motor Protect the connector section installation with using the aluminum tape. Motor-side gear After installing the swing motor, be sure to turn off the power supply for reset (for initializing the vane positions).

  • Page 271: Removal Of Switch Box

    ESIEN05-04 Disassembly and Maintenance 1.11.6 Removal of Switch Box Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the 2 mounting screws on the switch box cover. Remove the 1 mounting screw on the terminal block cover.

  • Page 272

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Disconnect the connector for fan motor. Fan motor For FCQ71D : Direct connector For FCQ100~ 140D: Relay Grounding wire connector Remove the grounding wire mounting screw. Remove the switch box fixing screw. Switch box fixing screw Tilt the switch box in the direction shown by the arrow, then draw the...

  • Page 273: Removal Of Pc Board

    ESIEN05-04 Disassembly and Maintenance 1.11.7 Removal of PC Board Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Procedure Points Step Remove the switch box according to the procedure for removing the switch box. Remove 2 switch box mounting screws to open the box.

  • Page 274

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points 3 Disconnect the power supply PC board. Disengage the 3 tabs on the front by pressing the back of the PC board in the direction shown by the arrow, then remove the power supply PC board.

  • Page 275: Removal Of Humidity Sensor And Air Temperature Thermistor

    ESIEN05-04 Disassembly and Maintenance 1.11.8 Removal of Humidity Sensor and Air Temperature Thermistor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the terminal block box cover according to the procedure for removing the switch box.

  • Page 276: Removal Of Fan Motor

    Disassembly and Maintenance ESIEN05-04 1.11.8 Removal of Fan Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the terminal block box cover according to the procedure for removing the switch box, then disconnect the following connectors.

  • Page 277

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points 2 Removing the fan rotor. Remove the resin nut and fan rotor retainer to dismount the fan rotor. Fan rotor retainer Resin nut 3 Remove the fan motor. Disconnect the 2 connectors on the fan motor.

  • Page 278: Removal Of Drain Pan, Drain Pump, Float Switch

    Disassembly and Maintenance ESIEN05-04 1.11.10 Removal of Drain Pan, Drain Pump, Float Switch Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Procedure Points Step 1 Removing the drain pan Remove the drain socket cap to discharge water.

  • Page 279

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points 2 Removing the drain pump Cut the clamp material. Pull the drain hose out. Remove the 3 screws on the drain pump mounting plate. Remove the 2 mounting screws on the drain pump. Displace the drain pump When removing the drain Clamp material...

  • Page 280

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points [Installation procedure of drain pump or float switch] Pay attention to the mounting Drain pump Install a spare drain direction of clamp material. Mounting screw 1mm or less pump or float switch on (For float switch) Provided mounting screw the mounting plate, then...

  • Page 281: Removal Of Heat Exchanger Temperature Thermistor

    ESIEN05-04 Disassembly and Maintenance 1.11.11 Removal of Heat Exchanger Temperature Thermistor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the drain pan according to the procedure Clamp for removing the drain pan.

  • Page 282: Table Of Contents

    Disassembly and Maintenance ESIEN05-04 1.12 FFQ25, 50, 60B Overview This part contains the following topics: Topic See page Removal of Suction Grille 5–43 Removal of Air Filter 5–44 Removal of Decoration Panel 5–46 Removal of Horizontal Vane 5–49 Removal of Swing Motor 5–51 Removal of Switch Box 5–53...

  • Page 283

    ESIEN05-04 Disassembly and Maintenance 1.12.1 Removal of Suction Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the suction grille To remove the suction grille, slide the two tabs simultaneously and pull the suction grille down...

  • Page 284

    Disassembly and Maintenance ESIEN05-04 1.12.2 Removal of Air Filter Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the air filter Open the suction grille. (See "Removal of Suction Grille".) (S2632)

  • Page 285

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points 2 Installation of the air filter Hook the air filter to the protrusions located at the top of the suction grille. Push the lower section of the air filter into the protrusions located at the bottom of the suction grille to secure the air filter in place.

  • Page 286

    Disassembly and Maintenance ESIEN05-04 1.12.3 Removal of Decoration Panel Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the decoration panel Remove the switch box cover and disconnect the connector of swing motor from the harness...

  • Page 287

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points The decoration panel is Loosen the two screws attached with 4 mounting by approx. 10 mm screws. Provisional hanger Remove the two fixing screws at the switch box side first. Loosen the other two screws by approx.

  • Page 288

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Turn the provisional hanger to disengage it from the hook of switch box, and slide the decoration panel in the arrow direction to remove the panel. (S2640) (S2641) 5–48 Part 5 – Disassembly and Maintenance...

  • Page 289: Removal Of Horizontal Vane

    ESIEN05-04 Disassembly and Maintenance 1.12.4 Removal of Horizontal Vane Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the decoration panel Refer to the "Removal of Decoration Panel" Remove the padding at Peel not the anti-sweat four corners of frame...

  • Page 290

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Remove the two screws for each bearing of Fixing screws horizontal vane (16 screws in total). Fixing screws (S2645) Remove the horizontal vane. (S2646) 5–50 Part 5 – Disassembly and Maintenance...

  • Page 291

    ESIEN05-04 Disassembly and Maintenance 1.12.5 Removal of Swing Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the decoration panel Fixing screw Refer to the "Removal of Decoration Panel"...

  • Page 292

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Precaution during swing motor insttallation Engage the swing motor-side gear with the panel-side one. (Otherwise, faulty Motor-side gear swinging operation or abnormal noise may be Panel-side gear caused.) Install the motor after checking of correct gear (S2649) engagement.

  • Page 293

    ESIEN05-04 Disassembly and Maintenance 1.12.6 Removal of Switch Box Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove decoration panel first. Fixing screw Remove the lid of switch (M4×12) box.

  • Page 294

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Remove five pieces of lead wires from PCB on ∗ Five pieces lead wires shown below (connect to the PCB) and the switch box and lead lead wire connected to the capacitor for fan motor. wire connected to the X15A······Lead wire of float switch X17A······Lead wire of thermistor for heating...

  • Page 295: Removal Of Fan Rotor And Fan Motor

    ESIEN05-04 Disassembly and Maintenance 1.12.7 Removal of Fan Rotor and Fan Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the switch box. Remove the bell mouth (Two screws) A convex protrusion is provided at the position of bell...

  • Page 296

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Make sure to hold the hub as shown in Fig.1 when tightening or loosening the fan fixing nut with a spanner.To avoid deformation and vibration of the fan, do not apply excessive torque to the shroud (the slash part of Fig.2).

  • Page 297

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Pull down the fan motor slowly. (S2657) Part 5 – Disassembly and Maintenance 5–57...

  • Page 298: Removal Of Drain Pan

    Disassembly and Maintenance ESIEN05-04 1.12.8 Removal of Drain Pan Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the drain socket to drain water from the drain hole.

  • Page 299: Removal Of Drain Pump

    ESIEN05-04 Disassembly and Maintenance 1.12.9 Removal of Drain Pump Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the drain pump Remove two screws fixing float switch ass'y. (Screw and ) Screw Screw...

  • Page 300

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Cut the tie wrap fixing the When pulling out the drain drain hose. hose, be sure to wear safety gloves to prevent your finger Remove the screw from injury with heat exchanger fin. Screw (S2662) Pull out the drain hose.

  • Page 301: Installation Of Drain Pump

    ESIEN05-04 Disassembly and Maintenance 1.12.10 Installation of Drain Pump Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Installing the drain pump Put the lead wire in the wiring groove properly, fix the drain pump ass'y with screw...

  • Page 302

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Insert the drain hose into Inserting the drain hose should the hose plug of the drain be executed before installation pump up to the root of of float switch in order to plug securely. prevent the float switch from damage.

  • Page 303

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Insert the float switch ass'y. At this time, put the lead wires in the wiring groove properly. (S2661) Install the drain pump together with the float switch with screw When install the drain pan, put the lead wires of float switch and drain pump in wiring groove...

  • Page 304: Replacement Of Heat Exchanger Thermistor

    Disassembly and Maintenance ESIEN05-04 1.12.11 Replacement of Heat Exchanger Thermistor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Disconnect the grounding terminal from the header. (S2670) Pull apart the thermistor ass'y and motor lead wire Fan motor lead wire Thermistor...

  • Page 305

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Take out the two tie Heat resistance tie wrap is wraps fixing the anti used. Be sure to use a heat Anti sweat tube sweat tube of header and resistance tie wrap when thermistor.

  • Page 306: Replacement Of Heat Exchanger

    Disassembly and Maintenance ESIEN05-04 1.12.12 Replacement of Heat Exchanger Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the heat exchanger Remove the refrigerant This work should be performed pipe after completion of with two personnel including one person for supporting the...

  • Page 307

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Remove the heat exchanger. (S2677) 2 Installing the heat exchanger Groove of ceiling polystyrene foam. Insert the heat exchanger in the groove of ceiling polystyrene foam properly, and bring the tube plate section of heat exchanger into intimate contact with the polystyrene partition...

  • Page 308

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Install the heat exchanger mounting plate. Insert two thermistors. Set the lead wire with yellow tape (for heating) upper side while that with no tape (for Then cover the header by liquid) lower side. anti sweat tube.

  • Page 309

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Put the heat exchanger partition plate inside and Fan motor lead wire fix them with two screws. Heat exchanger partition plate (S2672) Fan motor lead wire Pass the thermistor ass'y through the clamps and the slit of partition plate securely as the original state.

  • Page 310

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Install the drain pan putting the lead wire of float switch and drain pump into the wire groove securely. When install the drain pan, put the lead wires in wiring groove and pass the lead wires above the black sealing material on the drain pan securely.

  • Page 311

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Install the switch box with For installation of the switch two M4 screws and one box, refer to the "Removal of M5 screw. Switch Box" on page 5-53. For re-wiring inside the switch box, refer to the "Replacement of PC Board"...

  • Page 312: Replacement Of Pc Board

    Disassembly and Maintenance ESIEN05-04 1.12.13 Replacement of PC Board Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the PC Board Remove the switch box cover.

  • Page 313

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points 2 Installing the PC board and re-wiring inside the switch Lead wire of swing motor :X36A High roltage cable of transformer :X11A Engage the PC board Low roltage cable of transformer :X10A with two claws shown in Outdoor unit connection wire :X27A the right figure, push up...

  • Page 314

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Re-connect the outdoor Be sure to fix the lead wire to unit connection wire, the be connected to the connector earth wire and wire of X10A for low-tension cable of Power remote control as they transformer to the switch box transformer were, and fix them...

  • Page 315

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Insert the lead wires of swing flap to the connector on the PC board. Install the cover of switch box and the grille. (S2637) (S2636) Part 5 – Disassembly and Maintenance 5–75...

  • Page 316: Replacement Of Receiver Section Of Infrared Remote Control

    Disassembly and Maintenance ESIEN05-04 1.12.14 Replacement of Receiver Section of infrared remote control Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the receiver Transmission parts box section Remove two screws of the transmission parts...

  • Page 317

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Removing the decoration panel Lead wire of receiver section Refer to "Removal of Decoration Panel" Pull out the lead wire of receiver section from wiring groove. Push three claws to remove the corner cover. Push three claws on the (S2697) rear side of panel to...

  • Page 318

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Install the switch box and When install the decoration the decoration panel. panel, be careful not to catch the lead wire. Insert the lead wire of the receiver section to Tie wrap connector X1A, and bind the two wires with tie wrap.

  • Page 319

    ESIEN05-04 Disassembly and Maintenance 1.13 FHQ35, 50, 60, 71, 100, 125B Overview This part contains the following topics: Topic See page Removal of Air Filter and Suction Grille 5–80 Removal of Electrical Parts and PC Boards 5–82 Removal of Horizontal Blade 5–85 Removal of Fan Rotor and Fan Motor 5–86...

  • Page 320: Removal Of Air Filter And Suction Grille

    Disassembly and Maintenance ESIEN05-04 1.13.1 Removal of Air Filter and Suction Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Push the 2 tabs and open the suction grilles. Push the air filter installation panel from 2 places in the direction of...

  • Page 321

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Grip the suction grille hinge strongly and remove the suction grille. Part 5 – Disassembly and Maintenance 5–81...

  • Page 322: Removal Of Electrical Parts And Pc Boards

    Disassembly and Maintenance ESIEN05-04 1.13.2 Removal of Electrical Parts and PC Boards Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure:. Step Procedure Points Loosen the 2 screws of the control box cover and remove the control box cover.

  • Page 323

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Pull down the control box and let it hang by the 2 locations in the rear. Electrical parts can now be removed. Disconnect the connector mounted on the PC board. Remove the PC board installation screw.

  • Page 324

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Slide the PC board to the left away from the tabs on the right, and remove the PC board. 5–84 Part 5 – Disassembly and Maintenance...

  • Page 325

    ESIEN05-04 Disassembly and Maintenance 1.13.3 Removal of Horizontal Blade Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Gently bend the support plate located at the center of the horizontal blade, and detach the center shaft.

  • Page 326

    Disassembly and Maintenance ESIEN05-04 1.13.4 Removal of Fan Rotor and Fan Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Push the 2 tabs of the fan housing toward the inside with your fingers, and pull out the fan...

  • Page 327

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Loosen the 2 hexagon set screws of the intermediate bearing. Slide the intermediate bearing to the right and remove the fan rotor ass’y. Part 5 – Disassembly and Maintenance 5–87...

  • Page 328

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Cut off the tie-wrap of the Aconnectors glass tube cover over the Connector (1) handles high fan motor connector. voltage (220-240 V), so be Slide the glass tube and sure to turn of the power get the connector supply before disconnecting.

  • Page 329: Removal Of Fan Bearing

    ESIEN05-04 Disassembly and Maintenance 1.13.5 Removal of Fan Bearing Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the fan rotor according to the procedures for removing the fan rotor and fan motor.

  • Page 330

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Slide the left side panel toward the front of the unit and remove. Remove the 2 bearing installation screws and remove the bearing. 5–90 Part 5 – Disassembly and Maintenance...

  • Page 331: Removal Of Bottom Panel And Drain Pan

    ESIEN05-04 Disassembly and Maintenance 1.13.6 Removal of Bottom Panel and Drain Pan Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the 7 bottom panel installation screws (2 each on the left and right, 3 in the rear), and remove the bottom...

  • Page 332

    Disassembly and Maintenance ESIEN05-04 Remove the drain pan retainer (2 screw). 5–92 Part 5 – Disassembly and Maintenance...

  • Page 333

    ESIEN05-04 Disassembly and Maintenance 1.13.7 Removal of Swing Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the screw from the right side panel. Slide the right side panel toward the front and detach it.

  • Page 334

    Disassembly and Maintenance ESIEN05-04 1.14 FUQ71, 100, 125B Overview This part contains the following topics: Topic See page Removal of Air Filter 5–95 Removal of Suction Grille 5–96 Removal of Fan 5–98 Removal of Fan Motor 5–100 Removal of Drain Pan 5–102 Removal of Drain Pump 5–105...

  • Page 335

    ESIEN05-04 Disassembly and Maintenance 1.14.1 Removal of Air Filter Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Opening suction grille Push two tabs on suction grille toward the center of grille at the same time.

  • Page 336

    Disassembly and Maintenance ESIEN05-04 1.14.2 Removal of Suction Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Unhook two drop-prevention strings while supporting suction grille with hand. Open suction grille forward for approx.

  • Page 337

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Disengage three hooks located at rear side of the grille to remove suction grille. Part 5 – Disassembly and Maintenance 5–97...

  • Page 338: Removal Of Fan

    Disassembly and Maintenance ESIEN05-04 1.14.3 Removal of Fan Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove two mounting screws to dismount switch box cover. Remove suction air temperature thermistor attached to bell mouth.

  • Page 339

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Remove bell mouth by sliding to piping direction. To dismount fan, remove washer based nut using double-ended wrench. Remove fan by pulling down. Part 5 – Disassembly and Maintenance 5–99...

  • Page 340

    Disassembly and Maintenance ESIEN05-04 1.14.4 Removal of Fan Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing fan motor a. Disconnect connector. b. Remove lead wire retaining plate.

  • Page 341

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Remove motor by pulling down. Part 5 – Disassembly and Maintenance 5–101...

  • Page 342

    Disassembly and Maintenance ESIEN05-04 1.14.5 Removal of Drain Pan Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Procedure Points Step Remove suction grille according to the Removal of air filter and that of suction grille.

  • Page 343

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Disconnect wires and connectors from PCB. Arrange wire harness to avoid interference with next process. Caution: This work should be done by two personnel. If drain water remain in the pan, it may drop and stain on the floor. Make sure to check if no drain water remain in the pan, or cover the floor with vinyl sheet before...

  • Page 344

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Remove drain pan by pulling it down. 5–104 Part 5 – Disassembly and Maintenance...

  • Page 345

    ESIEN05-04 Disassembly and Maintenance 1.14.6 Removal of Drain Pump Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Drain pump is located at piping side. Caution: Cut clamp material of hose, and disconnect When reconnect drain hose with hose from pump.

  • Page 346

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Removing float switch a. Loosen three mounting screws to remove drain pump mounting base. b. Remove two screws located at opposite side of drain pump mounting base to dismount float switch. 5–106 Part 5 – Disassembly and Maintenance...

  • Page 347

    ESIEN05-04 Disassembly and Maintenance 1.14.7 Removal of Swing Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove suction grille according to "Removal of Suction Grille" Swing motor is located at the diagonal position of piping.

  • Page 348

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Remove two screws to dismount swing motor. 5–108 Part 5 – Disassembly and Maintenance...

  • Page 349: Removal Of Air Flow Control Blade

    ESIEN05-04 Disassembly and Maintenance 1.14.8 Removal of Air Flow Control Blade Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points To remove horizontal blade, press down tabs located at both end of blade and pull them forward.

  • Page 350

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Remove horizontal blade. 5–110 Part 5 – Disassembly and Maintenance...

  • Page 351

    ESIEN05-04 Disassembly and Maintenance 1.15 FAQ71B Overview This part contains the following topics: Topic See page Removal of Air Filter and Front Panel 5–112 Removal of Front Grille 5–112 Removal of the horizontal blade and vertical blade 5–115 Removal of Electrical Box 5–117 Removal of Heat Exchanger 5–118...

  • Page 352

    Disassembly and Maintenance ESIEN05-04 1.15.1 Removal of Air Filter and Front Panel Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Put your fingers on protrusions at left and right side of the unit to open the front panel.

  • Page 353

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Disengage the holding section on upper right of the panel by pushing toward left, then slide toward right to remove the front panel. Part 5 – Disassembly and Maintenance 5–113...

  • Page 354: Removal Of Front Grille

    Disassembly and Maintenance ESIEN05-04 1.15.2 Removal of Front Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the front panel in accordance with "Removal of Front Panel". Remove three pieces of front grille fixing screws.

  • Page 355

    ESIEN05-04 Disassembly and Maintenance 1.15.3 Removal of the horizontal blade and vertical blade Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points 1 Removing the horizontal blade. Open the horizontal blade.

  • Page 356

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points 2 Removing the vertical blade. Disengage the protrusion Holder plate on upper side of blade from holder plate. (Three Protrusion locations) Push the vertical blade backward and pull the lower side forward to disengage the blade from three hooks.

  • Page 357: Removal Of Electrical Box

    ESIEN05-04 Disassembly and Maintenance 1.15.4 Removal of Electrical Box Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the front grille in accordance with "Removal of Front Grille". Remove the screw on the service cover.

  • Page 358: Removal Of Heat Exchanger

    Disassembly and Maintenance ESIEN05-04 1.15.5 Removal of Heat Exchanger Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the front grille in accordance with "Removal of Front Grille". Caution: Removing the switch box in If gas leaks, repair the leakage...

  • Page 359

    ESIEN05-04 Disassembly and Maintenance 1.15.6 Removal of Fan Motor and Fan Rotor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the front grille in accordance with "Removal of Front Grille".

  • Page 360

    Disassembly and Maintenance ESIEN05-04 1.15.7 Removal of Air Swing Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the front grille in accordance with "Removal of Front Grille".

  • Page 361

    ESIEN05-04 Disassembly and Maintenance 1.15.8 Drain Hose Piping to the Left Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Removing the front grille in The drain pan and bottom accordance with "Removal frame are designed as an of Front Grille".

  • Page 362

    Disassembly and Maintenance ESIEN05-04 1.16 FAQ100B Overview This part contains the following topics: Topic See page Removal of Air Filter 5–123 Removal of Slide Panel, Operation Display Cover, and Front Grille 5–124 Removal of Electrical Parts Box 5–125 Removal of PC Board 5–126 Removal of Swing Louvre Unit 5–127...

  • Page 363

    ESIEN05-04 Disassembly and Maintenance 1.16.1 Removal of Air Filter Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Hold the air filter tabs with your hands and pull out.

  • Page 364

    Disassembly and Maintenance ESIEN05-04 1.16.2 Removal of Slide Panel, Operation Display Cover, and Front Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the left and right The wiring diagram is applied to side panels.

  • Page 365: Removal Of Electrical Parts Box

    ESIEN05-04 Disassembly and Maintenance 1.16.3 Removal of Electrical Parts Box Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the left and right side The left and right side panels panels, operation display have to be taken off in order to cover and front grille...

  • Page 366

    Disassembly and Maintenance ESIEN05-04 1.16.4 Removal of PC Board Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Procedure Points Step Remove the outer panels according to the procedure for "Removal of Electrical Parts Box".

  • Page 367: Removal Of Swing Louvre Unit

    ESIEN05-04 Disassembly and Maintenance 1.16.5 Removal of Swing Louvre Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the electrical parts box according to "Removal of Electrical Parts Box".

  • Page 368

    Disassembly and Maintenance ESIEN05-04 Step Procedure Points Remove the swing motor You can replace the swing motor from the swing Louvre without removing the swing unit. Louvre unit. 5–128 Part 5 – Disassembly and Maintenance...

  • Page 369

    ESIEN05-04 Disassembly and Maintenance 1.16.6 Removal of Fan Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove side panels and Use 2.5 mm hexagon nut driver. other external casing, and electrical parts box according to their removal procedures.

  • Page 370

    Disassembly and Maintenance ESIEN05-04 1.16.7 Removal of Drain Pan Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Procedure Points Step If removing the drain pan: The bottom panel is fastened to Carry out pump down, the unit installation plate by 3 disconnect the transmission...

  • Page 371

    ESIEN05-04 Disassembly and Maintenance Step Procedure Points Remove the air discharge Center of air discharge section unit. also screw fastened. (7 screws) Remove the drain pan. 1 Pull left side toward yourself. 2 Move the drain hose to the right until it comes off. Part 5 –...

  • Page 372

    Disassembly and Maintenance ESIEN05-04 1.16.8 Removal of Heat Exchanger Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Before dismounting a heat exchanger, make sure to Top plate proceed pump down refrigerant to outdoor unit and disconnect the connection...

  • Page 373: Removal Of Fan Rotor

    ESIEN05-04 Disassembly and Maintenance 1.16.9 Removal of Fan Rotor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure: Step Procedure Points Remove the heat exchanger You can also remove the auxiliary according to "Removal of electric heater without removing Heat Exchanger".

  • Page 374

    Disassembly and Maintenance ESIEN05-04 5–134 Part 5 – Disassembly and Maintenance...

  • Page 375: Table Of Contents

    ESIEN05-04 Index Symbols "88" ................3–17 A1 .

  • Page 376

    ESIEN05-04 Control Condensation avoidance ..........2–19 2–20 2–21...

  • Page 377: Table Of Contents

    ESIEN05-04 FCQ71~140D Removal of Air Filter ............5–24 Removal of Decoration Panel .

  • Page 378: Table Of Contents

    ESIEN05-04 Locating Exploded views, indoor units ............5–3 Functional diagrams .

  • Page 379

    ESIEN05-04 Safety devices Indoor ..............3–30 Self-Diagnosis by Wired remote control .

  • Page 380

    ESIEN05-04 Wiring diagrams Indoor units ..............1–61 Index...

  • Page 381

    "The present publication is drawn up by way of Daikin Europe N.V. is approved by LRQA for its Quality Daikin units comply with the European regulations that information only and does not constitute an offer Management System in accordance with the ISO9001 guarantee the safety of the product.

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  • Arlene Reyes Mar 12, 2017 02:43:
    I es y to know the eficiency oda the daikin model:R410​A thanks