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Daikin R-410A Service Manual Download Page 11

ESIEN05-04

Introduction

i

3

4

5

Part 0

1

Introduction

1.1

About This Manual

Target group

This service manual is intended for and should only be used by qualified engineers.

Purpose of this 
manual

This service manual contains all the information you need to do the necessary repair and maintenance 
tasks for the R-410A Sky Air Indoor Units.

Five parts

This service manual consists of an introduction, five parts and an index:

Introduction 
overview

The introduction contains the following topics:

Part

See page

Part 1–System Outline

1–1

Part 2–Functional Description

2–1

Part 3–Troubleshooting

3–1

Part 4–Commissioning and Test Run

4–1

Part 5–Disassembly and Maintenance

5–1

Topic

See page

1.2–Combination Overview

ii

Summary of Contents for R-410A

Page 1: ...w w w d a i k i n e u ESiEN05 04 Service Manual R 410A Sky Air Indoor...

Page 2: ...w w w d a i k i n e u ESiEN05 04 Service Manual R 410A Sky Air Indoor...

Page 3: ...35 50 60B 1 12 1 7 FBQ35 50B 1 14 1 8 FBQ60 71B 1 16 1 9 FBQ100 125B 1 18 1 10 FDQ125B 1 20 1 11 FDQ200 250B 1 22 1 12 FHQ35 50B 1 24 1 13 FHQ60 71B 1 26 1 14 FHQ100B 1 28 1 15 FHQ125B 1 30 1 16 FUQ7...

Page 4: ...FBQ71B 1 72 4 8 FBQ100 125B 1 74 4 9 FDQ125 200 250B 1 76 4 10 FHQ35 50 60B 1 78 4 11 FHQ71 100 125B 1 80 4 12 FUQ71 100 125B 1 82 4 13 FAQ71B 1 84 4 14 FAQ100B 1 86 4 15 FDEQ71B 1 88 4 16 FDEQ100B 1...

Page 5: ...0 60B 1 108 6 3 FCQ71 100 125B 1 109 6 4 FCQ71 100 125 140D 1 110 6 5 FFQ25 35 50 60B 1 112 6 6 FBQ35 50 60 71B FDEQ71B 1 113 6 7 FBQ100 125B FDEQ100 125B 1 114 6 8 FDQ125 200 250B 1 115 6 9 FHQ35 50...

Page 6: ...d Operation Function 2 8 1 6 Restart Standby 2 9 1 7 Automatic Restart 2 10 1 8 Using Conditions for Remote Controller Thermostat 2 11 1 9 Forced Thermostat OFF 2 13 1 10 Freeze Prevention Function 2...

Page 7: ...Chapter 3 31 2 2 Malfunctioning Indoor PCB A1 3 32 2 3 Malfunction of Drain Water Level System A3 3 33 2 4 Malfunctioning Drain System AF 3 35 2 5 Indoor Unit Fan Motor Lock A6 3 36 2 6 Malfunctionin...

Page 8: ...3 53 4 2 Indoor Unit Checking the Fan Motor Hall IC 3 54 4 3 Indoor Unit Checking the Power Supply Wave Form 3 55 4 4 Checking the Thermistors 3 56 4 5 Resistance Conversion Table Ambient Coil Fin 3 5...

Page 9: ...red Remote Controller 4 10 2 3 How to Change the Field Settings with the Wireless Remote Controller 4 12 2 4 Overview of the Field Settings on the Indoor Units 4 13 2 5 Overview of the Factory Setting...

Page 10: ...1 2 FCQ35 50 60 71B 5 4 1 3 FCQ100 125B 5 6 1 4 FFQ25 35 50 60B 5 8 1 5 FBQ35 50B 5 10 1 6 FBQ60 71B 5 12 1 7 FBQ100 125B 5 14 1 8 FDQ125 200 250B 5 16 1 9 FDEQ71 100B 5 18 1 10 FDEQ125B 5 20 1 11 FCQ...

Page 11: ...do the necessary repair and maintenance tasks for the R 410A Sky Air Indoor Units Five parts This service manual consists of an introduction five parts and an index Introduction overview The introduc...

Page 12: ...ssible combinations between indoor units and pair split outdoor units Non Inverter Inverter Cooling Only Cooling Only Heat Pump RS50BVMB RS60BVMB RKS25BVMB RKS35BVMB RKS50BVMB 9 RKS60BVMB 9 RKS25D 2 V...

Page 13: ...FCQ35B7V1 M M M M M M M M M M M M M M M M FCQ50B7V1 M M M M M M M M M M M M M M M M FCQ60B7V1 M M M M M M M M M M M 600X600 cassette FFQ25B 7 V1B M M M M M M M M M M M M M M M M FFQ35B 7 V1B M M M M...

Page 14: ...RZQ200B7W1B RZQ250B7W1B 950x950 cassette standard FCQ35B7V1 T T T T 2 3 4 4 FCQ50B7V1 T T T T 2 3 3 4 FCQ60B7V1 T T T T 2 3 4 FCQ71B7V3B P T T P T T P P 2 3 FCQ100B7V3B P P P P 2 FCQ125B7V3B P P P P 2...

Page 15: ...P 2 FUQ100BV3B P P P FUQ125BV3B P P P Wall mounted FAQ71BV3B P T T P T T P 2 FAQ100BV3B P P P Non Inverter Inverter Cooling Only Heat Pump Heat Pump RR71B7V3B RR71B7W1B RR100B7V3B RR100B7W1B RR125B7W1...

Page 16: ...it In note 1 are the indoor units mentioned in order of the possible function most functions are on FCQ less functions are on FAQ 4 Between brackets are the required Refnet kits mentioned that are nec...

Page 17: ...control that is equipped with the most functions as the main unit In note 1 are the indoor units mentioned in order of the possible function most functions are on FCQ less functions are on FAQ 4 Betw...

Page 18: ...its mentioned that are necessary to install the combination 5 For unit specification of the outdoor units and the indoor units refer to the unit specifications mentioned for pair systems 6 Nominal coo...

Page 19: ...5 1 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...

Page 20: ...ESIEN05 04 1 2 Part 1 System Outline 3 1 1 5...

Page 21: ...ontains the following general outlines General outline See page 1 2 FCQ35 50 60 71B 1 4 1 3 FCQ100 125B 1 6 1 4 FCQ71D 1 8 1 5 FCQ100 125 140D 1 10 1 6 FFQ25 35 50 60B 1 12 1 7 FBQ35 50B 1 14 1 8 FBQ6...

Page 22: ...ion direct installation type see note 3 or more VIEW B VIEW D NOTES 1 Location of the nameplates Unit body on the bell mouth at the inside of the suction grill Decoration panel on the panel frame at t...

Page 23: ...tains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply connection 5 Transmission wiring connection 6 Air outlet 7...

Page 24: ...table NOTES 1 Location of the nameplates Unit body on the bell mouth at the inside of the suction grill Decoration panel on the panel frame at the inside of the suction grill 2 When installing an opti...

Page 25: ...the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply connection 5 Transmission wiring connection 6 Air discharge out...

Page 26: ...ired 4 Though the installation is acceptable up to maximum of 910mm square ceiling opening keep the clearance of 35mm or less between the main unit and the ceiling opening so that the panel overlap al...

Page 27: ...The table below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply Wiring remote control connection 5 Air...

Page 28: ...required 4 Though the installation is acceptable up to maximum of 910mm square ceiling opening keep the clearance of 35mm or less between the main unit and the ceiling opening so that the panel overla...

Page 29: ...ow contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply Wiring remote control connection 5 Power supply conn...

Page 30: ...ducted into the ceiling or the unit continues 24 hour operation an additional insulation thickness 10mm or more of glasswool or polyethylene form is required 4 Though the installation is acceptable up...

Page 31: ...e table below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply connection 5 Remote control code and cont...

Page 32: ...ion Suspension position VIEW A VIEW B VIEW C P C D NOTES 1 Refer to Outlook drawing for installing optional accessories when installing optional accessories 2 The required ceiling depth varies accordi...

Page 33: ...ble below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 remote control wiring connection 5 Power supply connection...

Page 34: ...lling optional accessories 2 The required ceiling depth varies according to the configuration of the specific system 3 For maintenance of the air filter it is necessary to provide a service access pan...

Page 35: ...ble below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 remote control wiring connection 5 Power supply connection...

Page 36: ...ut hole Fresh air intake position VIEW C VIEW B or more Installation Space NOTES 1 Refer to Outlook drawing for installing optional accessories when installing optional accessories 2 The required ceil...

Page 37: ...ble below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 remote control wiring connection 5 Power supply connection...

Page 38: ...ral Outline ESIEN05 04 1 20 Part 1 System Outline 3 1 1 4 5 1 10 FDQ125B Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit mm VIEW A VIEW A NOTE SERVICE SP...

Page 39: ...stem Outline 1 21 3 1 4 5 Components The table below contains the different components of the unit No Component 1 Power supply instake 2 Drain connection 3 Gas pipe connection single union 4 Liquid pi...

Page 40: ...3 1 1 4 5 1 11 FDQ200 250B Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit mm VIEW A VIEW A NOTES SERVICE SPACE EXTRA SERVICE SPACE FOR OPTIONAL DRAINPU...

Page 41: ...ine Part 1 System Outline 1 23 3 1 4 5 Components The table below contains the different components of the unit No Component 1 Power supply instake 2 Drain connection 3 Gas pipe connection 4 Liquid pi...

Page 42: ...side Obstacle Required space or more For height installation From the floor side or more Required space View from the front Hanging position Hanging position Hanging bolt Required space or more Servi...

Page 43: ...erminal Inside the electric components box 8 Suspension bracket 9 Backward piping and wiring connection opening lid 10 Upward piping and wiring connection opening lid 11 Right side pipe connection 12...

Page 44: ...ide Obstacle Required space or more For height installation From the floor side 2500 or more Required space View from the front Hanging position Hanging position Hanging bolt Required space or more Se...

Page 45: ...erminal Inside the electric components box 8 Suspension bracket 9 Backward piping and wiring connection opening lid 10 Upward piping and wiring connection opening lid 11 Right side pipe connection 12...

Page 46: ...de Obstacle Required space or more For height installation From the floor side 2500 or more Required space View from the front Hanging position Hanging position Hanging bolt Required space or more Ser...

Page 47: ...erminal Inside the electric components box 8 Suspension bracket 9 Backward piping and wiring connection opening lid 10 Upward piping and wiring connection opening lid 11 Right side pipe connection 12...

Page 48: ...side Obstacle Required space or more For height installation or more Required space View from the front Hanging position Hanging position Hanging bolt Required space Position of the hole in the wall f...

Page 49: ...erminal Inside the electric components box 8 Suspension bracket 9 Backward piping and wiring connection opening lid 10 Upward piping and wiring connection opening lid 11 Right side pipe connection 12...

Page 50: ...rge grill the required space is 30mm or more Note 3 or more or more or more NOTES 1 Location of unit s name plate on bell mouth 2 In case of using infrared remote control this is the position for the...

Page 51: ...t components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Air outlet 5 Air suction grille 6 Corner decoration cover 7 Right pipe and wiring connect...

Page 52: ...harge grill the required space is 30mm or more Note 3 or more or more or more NOTES 1 Location of unit s name plate on bell mouth 2 In case of using infrared remote control this is the position for th...

Page 53: ...t components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Air outlet 5 Air suction grille 6 Corner decoration cover 7 Right pipe and wiring connect...

Page 54: ...infrared remote control this position will be a signal receiver Refer to the drawing of infrared remote control for detail hole Required space 50 or more Approx Name plate Note 2 Piping direction Pip...

Page 55: ...4 5 Components The table below contains the different components of the unit No Component 1 Front panel 2 Front grille 3 Air outlet 4 Gas pipe 5 Liquid pipe 6 Drain hose 7 Grounding terminal 8 Right s...

Page 56: ...position will be a signal receiver Refer to the drawing of infrared remote control for detail Required space 50 or more Brand name plate Note 2 Piping direction Required space or more hole Piping and...

Page 57: ...w contains the different components of the unit No Component 1 Front grille 2 Air filter 3 Discharge outlet 4 Gas piping connection 5 Gas piping connection 6 Drain piping connection 7 Earth terminal 8...

Page 58: ...960 Suspension Suspension Bolt 668 Suspension position Service space 300 or more 300 or more Installation space NOTES 1 Refer to Outlook drawing for installing optional accessories when installing op...

Page 59: ...The table below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 remote control wiring connection 4 Power supply connection 5 Drain pipe con...

Page 60: ...1360 Suspension position Suspension Bolt 300 or more Installation space NOTES 1 Refer to Outlook drawing for installing optional accessories when installing optional accessories 2 For maintenance of...

Page 61: ...The table below contains the different components of the unit No Component 1 Liquid pipe connection 2 Gas pipe connection 3 remote control wiring connection 4 Power supply connection 5 Drain pipe con...

Page 62: ...General Outline ESIEN05 04 1 44 Part 1 System Outline 3 1 1 4 5...

Page 63: ...his chapter contains the following information Q Technical specifications Q Electrical specifications Indoor units This chapter contains the following specifications Specifications See page 2 2 FCQ B...

Page 64: ...min 18 m min 18 m min 28 m min 31 m min Air flow rate heating low 10 m min 11 m min 14 m min 14 m min 21 m min 24 m min Qty x model rotor 1 x QTS46B14M 1 x QTS46A17M Qty x model motor 1 x 19NFB6079 1...

Page 65: ...min 30 m min Air flow rate cooling low 14 m min 21 m min 24 m min 25 m min Air flow rate heating high Air flow rate heating low Qty x model rotor 1 x QTS46F15M 1 x QTS46E17M Qty x model motor 1 x EHD...

Page 66: ...m min Air flow rate heating high 9 0 m min 10 0 m min 15 0 m min Air flow rate heating low 6 5 m min 6 5 m min 10 0 m min Qty x model rotor 1 x QTS32C15M Qty x model motor 1 x D16P52A23 Fan speed 2 st...

Page 67: ...0 m min 27 0 m min 35 0 m min Air flow rate heating low 9 0 m min 10 0 m min 14 0 m min 14 0 m min 20 0 m min 24 0 m min Qty x model rotor 1 x QD18G3BM 2 x QD18G2BM 3 x QD18G2BM Qty x model motor 1 x...

Page 68: ...43 0 m min 69 m min 89 m min Air flow rate heating 43 0 m min 69 m min 89 m min Qty x model rotor motor 1 x DPA216 178NB 1 x DPC241 241NB Fan speed 1 step direct drive Fan type Sirocco Refrigerant Ty...

Page 69: ...m min Air flow rate heating high 13 0 m min 16 0 m min 17 0 m min 24 0 m min 30 0 m min Air flow rate heating low 10 0 m min 13 0 m min 14 0 m min 20 0 m min 25 0 m min Qty x model rotor 2 x QD12K1AH...

Page 70: ...n 21 0 m min 23 0 m min Air flow rate heating high 19 0 m min 29 0 m min 32 0 m min Air flow rate heating low 14 0 m min 21 0 m min 23 0 m min Qty x model rotor 1 x QTS48A10M 1 x QTS50B15M Qty x model...

Page 71: ...w 15 0 m min 19 0 m min Air flow rate heating high 19 0 m min 23 0 m min Air flow rate heating low 15 0 m min 19 0 m min Qty x model rotor 1 x QCL9886M 1 x QCL1163MA 1 x QCL1163MB Qty x model motor 1...

Page 72: ...min 20 0 m min Air flow rate heating high 19 0 m min 28 0 m min 35 0 m min Air flow rate heating low 14 0 m min 20 0 m min 24 0 m min Qty x model rotor 2 x QD18G3BM 2 x QD18G2AM 1 x QD18G2BM Qty x mo...

Page 73: ...his Chapter Introduction This chapter contains the following information Q Functional diagrams Q Pipe connection diameters Functional diagrams This chapter contains the following functional diagrams F...

Page 74: ...System Outline 3 1 1 4 5 3 2 Indoor Piping All indoor units Remark R3T only present on following types of indoor units Q FCQ35 60B Q FFQ25 60B Q FBQ35 60B Q FHQ35 60B 2 Indoor unit Liquid piping Gas p...

Page 75: ...on See pipe connection diameter 2 Heat exchanger The heat exchanger is of the multi louvre fin type Hi X tubes and coated waffle louvre fins are used 3 Filter The filter is used to collect impurities...

Page 76: ...50 60B 12 7 mm 6 4 mm FCQ71 100 125B 15 9 mm 9 5 mm FCQ71 100 125D 15 9 mm 9 5 mm FFQ25 35B 9 5 mm 6 4 mm FFQ50 60B 12 7 mm 6 4 mm FBQ35B 9 5 mm 6 4 mm FBQ50 60B 12 7 mm 6 4 mm FBQ71 100 125B 15 9 mm...

Page 77: ...connection diameter 2 Heat exchanger The heat exchanger is of the multi louvre fin type Hi X tubes and coated waffle louvre fins are used 3 Filter The filter is used to collect impurities which may en...

Page 78: ...ESIEN05 04 1 60 Part 1 System Outline 3 1 1 4 5...

Page 79: ...er 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 1 66 4 5 FFQ25 35 50 60B 1 68 4 6 FBQ35 50 60B 1 70 4 7 FBQ71B 1...

Page 80: ...unit Simultaneous Operation System Outdoor unit remote control Master Slave Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Norm emerg Swi...

Page 81: ...itch M2F embedded H3P Light emitting diode filter sign red R1T Thermistor Air H4P Light emitting diode defrost orange R2T Thermistor Liquid SS1 Selector switch Main Sub R3T Thermistor Coil SS2 Selecto...

Page 82: ...aneous Operation System Outdoor unit remote control Master Slave Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 Use copper conduct...

Page 83: ...ode defrost orange Q1F Thermo switch M2F embedded SS1 Selector switch Main Sub R1T Thermistor Air SS2 Selector switch Wireless address set R2T Thermistor Liquid RyP Magnetic relay M3P adapter for wiri...

Page 84: ...in accordance with the attached installation manual 3 remote control model varies according to the combination system confirm engineering materials and catalogs etc before connecting 4 Confirm the met...

Page 85: ...r fan H2P Light emitting diode timer green M1P Motor Drain pump H3P Light emitting diode filter sign red M1S Motor Swing flap H4P Light emitting diode defrost orange R1T Thermistor Air SS1 Selector sw...

Page 86: ...board Wired remote control Note 5 remote control to Outdoor Unit Note 3 Notes 1 2 In case using central remote control connect it to the unit in accordance with the attached installation manual 3 X24...

Page 87: ...M1F embedded H1P Light emitting diode on red R1T Thermistor Air H2P Light emitting diode timer green R2T Thermistor Coil 1 H3P Light emitting diode filter sign red R3T Thermistor Coil 2 H4P Light emi...

Page 88: ...indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When using the central remote control see manual for connection to the unit...

Page 89: ...ermistor Air BS12 Inspection test operation button R2T Thermistor Liquid BS14 Filter sign reset button R3T Thermistor Coil H1P Light emitting diode Service monitor red RyF1 4 Magnetic relay Fan LCD Li...

Page 90: ...ite outdoor indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When using the central remote control see manual for connection...

Page 91: ...control button R2T Thermistor Coil BS12 Inspection test operation button RyF1 4 Magnetic relay Fan BS14 Filter sign reset button RyP Magnetic relay Drain pump H1P Light emitting diode Service monitor...

Page 92: ...RN Brown outdoor indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When using the central remote control see manual for connec...

Page 93: ...control button R2T Thermistor Coil BS12 Inspection test operation button RyF1 4 Magnetic relay Fan BS14 Filter sign reset button RyP Magnetic relay Drain pump H1P Light emitting diode Service monitor...

Page 94: ...tor Colors BLK Black BLU Blue RED Red WHT White YLW Yellow outdoor indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When usin...

Page 95: ...n H1P Light emitting diode Service monitor red R1T Thermistor Air LCD Liquid cristal display R2T Thermistor Coil SS1 Selector switch Main sub RyF1 Magnetic relay Fan SS1 Selector switch Emergency adap...

Page 96: ...6 remote control to Outdoor Unit Note 4 Notes 1 2 3 In case using central remote control connect it to the unit in accordance with the attached installation manual 4 X24A is connected when the infrare...

Page 97: ...diode on red R1T Thermistor Air H2P Light emitting diode timer green R2T Thermistor Coil 1 H3P Light emitting diode filter sign red R3T Thermistor Coil 2 H4P Light emitting diode defrost orange S1Q L...

Page 98: ...using central remote control connect it to the unit in accordance with the attached installation manual 4 X24A is connected when the infrared remote control kit is being used 5 remote control model va...

Page 99: ...hermo switch M1F embedded H4P Light emitting diode defrost orange R1T Thermistor Air SS1 Selector switch Main Sub R2T Thermistor Coil SS2 Selector switch Wireless address set S1Q Limit switch Swing fl...

Page 100: ...1 2 3 In case using central remote control connect it to the unit in accordance with the attached installation manual 4 X24A is connected when the infrared remote control kit is being used 5 remote c...

Page 101: ...OFF Q1M Thermo switch M1F embedded H1P Light emitting diode on red R1T Thermistor Air H2P Light emitting diode timer green R2T Thermistor Coil H3P Light emitting diode filter sign red S1L Float switc...

Page 102: ...anual 3 remote control model varies according to the combination system confirm engineering materials and catalogs etc before connecting 4 X24A is connected when the infrared remote control kit is bei...

Page 103: ...ting diode on red R2T Thermistor Coil H2P Light emitting diode timer green SS1 Selector switch Emergency H3P Light emitting diode filter sign red X1M Terminal block H4P Light emitting diode defrost or...

Page 104: ...nual 4 X24A is connected when the infrared remote control kit is being used 5 remote control model varies according to the combination system confirm engineering materials and catalogs etc before conn...

Page 105: ...ght emitting diode filter sign red M1S Motor Swing flap H4P Light emitting diode defrost orange Q1M Thermo switch M1F embedded SS1 Selector switch Main Sub R1T Thermistor Air SS2 Selector switch Wirel...

Page 106: ...hite outdoor indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When using the central remote control see manual for connection...

Page 107: ...ic relay Fan BS11 Fan speed control button RyP Magnetic relay Drain pump BS12 Inspection test operation button SS1 Selector switch Emergency BS14 Filter sign reset button T1R Power supply transformer...

Page 108: ...BRN Brown outdoor indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When using the central remote control see manual for conne...

Page 109: ...ic relay Fan BS11 Fan speed control button RyP Magnetic relay Drain pump BS12 Inspection test operation button SS1 Selector switch Emergency BS14 Filter sign reset button T1R Power supply transformer...

Page 110: ...BRN Brown outdoor indoor Terminals for Operation Indicator Fan Operation Compressor Operation adapter for wiring Wired remote control Notes 1 When using the central remote control see manual for conne...

Page 111: ...ic relay Fan BS11 Fan speed control button RyP Magnetic relay Drain pump BS12 Inspection test operation button SS1 Selector switch Emergency BS14 Filter sign reset button T1R Power supply transformer...

Page 112: ...Wiring Diagrams ESIEN05 04 1 94 Part 1 System Outline 3 1 1 4 5...

Page 113: ...nts 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 5 4 FCQ71 100 125 140D 1 98 5 5 FFQ25 35 50 60B 1 99 5 6 FBQ35...

Page 114: ...5 5 2 FCQ35 50 60 71B The illustration below shows the switch box layout T1R PCB C1R X1M X2M Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip for...

Page 115: ...4 5 5 3 FCQ100 125B The illustration below shows the switch box layout X2M X1M C1R PCB T1R Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip for rem...

Page 116: ...e illustration below shows the switch box layout PCB3 X1M X2M PCB2 PCB1 Item Description PCB1 Printed circuit board A1P power circuit PCB2 Printed circuit board A2P control circuit PCB3 Printed circui...

Page 117: ...5 5 5 FFQ25 35 50 60B The illustration below shows the switch box layout T1R C1R X2M PCB X1M Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip for r...

Page 118: ...5 6 FBQ35 50 60 71 100 125B The illustration below shows the switch box layout PCB C1R X2M T1R X1M Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip...

Page 119: ...5 5 7 FDQ125 200 250B The illustration below shows the switch box layout PCB C1R X1M T1R X2M Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip for...

Page 120: ...5 8 FHQ35 50 60 71 100 125B The illustration below shows the switch box layout C1R PCB X1M X2M T1R Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip...

Page 121: ...5 5 9 FUQ71 100 125B The illustration below shows the switch box layout C1R PCB T1R X1M X2M Item Description PCB Printed circuit board T1R Transformer C1R Fan motor capacitor X1M Terminal strip for r...

Page 122: ...System Outline 3 1 1 4 5 5 10 FAQ71B The illustration below shows the switch box layout X2M PCB X1M Item Description PCB Printed circuit board X1M Terminal strip for remote control P1 P2 F1 F2 T1 T2...

Page 123: ...System Outline 1 105 3 1 4 5 5 11 FAQ100B The illustration below shows the switch box layout PCB X1M X2M Item Description PCB Printed circuit board X1M Terminal strip for remote control P1 P2 X2M Ter...

Page 124: ...utline 3 1 1 4 5 5 12 FDEQ71 100 125B The illustration below shows the switch box layout T1R X2M T1M PCB Item Description PCB Printed circuit board T1R Transformer X1M Terminal strip for remote contro...

Page 125: ...t shows the PCB connectors Indoor units This chapter contains the following PCB layouts PCB layout See page 6 2 FCQ35 50 60B 1 108 6 3 FCQ71 100 125B 1 109 6 4 FCQ71 100 125 140D 1 110 6 5 FFQ25 35 50...

Page 126: ...ary side X15A 33H Float switch X17A R3T Coil thermistor X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M2F Fan motor power supply X24A X2A on A3P X24A is connected when the infrared remo...

Page 127: ...sformer primary side X15A S1L Float switch X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M2F Fan motor power supply X24A X2A on A3P X24A is connected when the infrared remote control is...

Page 128: ...nnectors The table below describes the PCB connectors X56A X54A X27A X25A X55A X20A Connector Connected to Description X20A M1F Fan motor Power supply feedback X25A M1P Drain pump motor X27A X2M Power...

Page 129: ...Not used X15A S1L Float switch X16A A3P Humidity sensor X18A R2T Coil thermistor X24A X2A on A4P X24A is connected when the infrared remote control used X30A X1M Terminal strip for P1 P2 and F1 F2 X3...

Page 130: ...S1L Float switch X17A R3T Coil thermistor gas Not used on 71 125 class X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M1F Fan motor power supply X24A X2A on A3P X24A is connected when th...

Page 131: ...nsformer secondary side X11A T1R Transformer primary side X15A 33H Float switch X17A R3T Coil thermistor X18A R2T Coil thermistor liquid X19A R1T Air thermistor X21A M1F Fan motor power supply X25A M1...

Page 132: ...10A T1R Transformer secondary side X11A T1R Transformer primary side X15A S1L Float switch X18A R2T Coil thermistor liquid X19A R1T Air thermistor X21A M1F Fan motor power supply X25A M1P Drain pump m...

Page 133: ...P2 X10A T1R Transformer secondary side X11A T1R Transformer primary side X18A R2T Coil thermistor liquid X19A R1T Air thermistor X21A K1F Magnetic contactor of fan motor X27A X2M Power supply communi...

Page 134: ...e jumper connector of X15A and carry out the addi tional wiring for float switch and drain pump X17A R3T Coil thermistor gas Not used on 71 125 class X18A R2T Coil thermistor liquid X19A R1T Air therm...

Page 135: ...he drain pump remove the jumper connector of X15A and carry out the addi tional wiring for float switch and drain pump X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M1F Fan motor power...

Page 136: ...secondary side X11A T1R Transformer primary side X14A S1Q Limit switch swing flap X15A S1L Float switch X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M1F Fan motor power supply X24A X2A...

Page 137: ...X15A X35A X24A Connector Connected to Description X15A Connector float switch X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M1F Fan motor power supply X24A X2A on A2P infrared remote c...

Page 138: ...sformer PCB primary side X14A S1Q Limit switch swing flap X15A Connector float switch X18A R2T Coil thermistor liquid X19A R1T Air thermistor X20A M1F Fan motor power supply X24A X2A on A3P X24A is co...

Page 139: ...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...

Page 140: ...ESIEN05 04 2 2 Part 2 Functional Description 3 1 2 5...

Page 141: ...3 Forced Operating Mode Emergency Operation 2 5 1 4 Outdoor Unit Identification Function 2 7 1 5 Simulated Operation Function 2 8 1 6 Restart Standby 2 9 1 7 Automatic Restart 2 10 1 8 Using Conditio...

Page 142: ...R2T R3T Ther mistor Location Wiring symbol Mode Function 1 Indoor air return R1T Cooling Q Thermostat control Q PMV control Q General frequency control Heating Q Thermostat control Q PMV control Q Gen...

Page 143: ...tion by changing the emergency switch back to normal while the power is OFF Emergency operation Below table explains what will happen when the switch is set to emergency How to set Emergency Operation...

Page 144: ...ce every hour Q Emergency operation can not be carried out when the PCB board itself is defective Q Be sure to set the emergency switch on both the outdoor and indoor unit Q The unit will not regulate...

Page 145: ...ng mode has to be set in function of the type of connected outdoor unit c o or h p Operating modes The possible operating modes are Used input The outdoor unit identification function uses the followi...

Page 146: ...e remote controller Fin thermistor malfunction is only displayed when pressing the Inspection button on the remote controller Sensors Q Outside temperature thermistor Q Outdoor heat exchanger thermist...

Page 147: ...OFF and allow pressure equalization forced thermostat OFF will be conducted for 3 minutes after compressor stopping compressor guard timer Graph Thermostat OFF Compressor Electronic expansion valve Ou...

Page 148: ...OFF the power supply while the remote control s ON OFF switch is still ON the automatic restart function automatically starts the indoor fan immediately and the outdoor unit fan starts automatically...

Page 149: ...and the suction temperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the therm...

Page 150: ...18 C to 28 C A F This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is...

Page 151: ...anger from freezing in cooling operation when one of the below conditions is applicable Q Indoor unit heat exchanger temperature 5 C for 1 minute continuously Q Indoor unit heat exchanger temperature...

Page 152: ...eze Prevention start conditions Freeze prevention start decided by the indoor unit factory setting Freeze Prevention stop conditions Freeze prevention stop decided by the indoor unit factory setting Q...

Page 153: ...ted average comfort level Refer to ISO 7730 for details Function An optimized indoor temperature will be calculated using the following inputs Q Outdoor air temperature Q Indoor air temperature Q remo...

Page 154: ...at OFF conditions The thermostat control prevents the thermostat from turning OFF in the following conditions Q For the 2 5 minutes after operations starts or Q Defrosting or Q Forced operating mode o...

Page 155: ...and turned OFF 5 minutes after the compressor has stopped residual operation Float switch activation during thermostat OFF When an abnormal drain level is detected in the drain pan the float switch op...

Page 156: ...imum 10 minutes even if abnormality is solved within the 10 minutes 3 If the float switch closes again within 80 seconds cooling operation can restart within the 10 minutes recovery period Used inputs...

Page 157: ...following operating modes Q Cooling automatic Q Dry keep Method To avoid condensation on the swing flap the condensation avoidance control is activated Stage Description 1 The fan operates in cooling...

Page 158: ...1 uses the following inputs When the flap starts to move there can be a draft The fan speed decreases to LL speed but it takes some time because of its inertia Fan Flap Thermostat Setting LL Setting...

Page 159: ...dance control 2 is activated when Q Hot start is finished or Q Cold air prevention control is finished Time chart If the fan speed is set to H the fan turns at low speed for a certain amount of time U...

Page 160: ...ction setting Set position Set position Set position Stop Error Swing operation OFF Horizontal Downward Airflow direction setting Set position Downward Freeze preven tion Swing operation OFF Horizonta...

Page 161: ...mp down operation During this pump down operation the indoor fan will keep on operating Purpose Q Cooling Minimize the remaining refrigerant amount in indoor unit heat exchanger Q Heating Lower the hi...

Page 162: ...Heating operation is turend on with remote control Indoor unit fan LL tap Condition A is met Indoor unit fan L tap Condition B is met Indoor unit fan M tap Continuing L tap on indoor unit without M ta...

Page 163: ...4 3 4 5 3 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 Addit...

Page 164: ...ESIEN05 04 3 2 Part 3 Troubleshooting 3 1 3 5...

Page 165: ...ered common practice Overview This chapter contains the following topics Topic See page 1 2 General Troubleshooting Flowchart 3 4 1 3 Overview of General Problems 3 5 1 4 Procedure of Self Diagnosis b...

Page 166: ...e Units equipped with liquid crystal remote controllers only Operation is normal Temperature differential is 8 18 C The units runs but doesn t heat the room Measure the suction discharge temperature I...

Page 167: ...It is caused by the activation of the overload control airflow shift control 16 Flap automatically moves during cooling It is normal It is caused by the activation of the dew prevention function or c...

Page 168: ...eration switch or contact point Q Faulty high pressure switch Q Faulty magnetic switch for fan motor Q Activation or fault of overcurrent relay for fan motor Q Faulty overcurrent relay for compressor...

Page 169: ...ormal Equipment starts operation 3 minutes later 3 min standby Diagnose based on error code on remote controller Normal Equipment starts operation 3 minutes later 3 min standby Diagnose based on error...

Page 170: ...operates but compressor does not Applicable Model All models of SkyAir series Method of Malfunction Detection Malfunction Decision Conditions Possible Causes Q Faulty thermistor Q Faulty indoor outdoo...

Page 171: ...ard Input to PC board Output from PC board e Output from relay or microcomputer d Output from magnetic switch or SW circuit of power transistor c Output from magnetic switch or U V W of power transist...

Page 172: ...nt Q Air intrudes into refrigerant system Q Faulty pressure switch Q Faulty magnetic switch for outdoor unit fan motor Q Faulty aux relay for outdoor unit fan motor Q Soiled heat exchanger of outdoor...

Page 173: ...t exchanger After vacuum drying charge correct amount of refrigerant Check the pressure switch Possible causes as follows Refrigerant overcharge Mixing of air in refrigerant system Faulty pressure swi...

Page 174: ...Q Air intrudes into refrigerant system Q Faulty pressure switch Q Faulty magnetic switch for outdoor unit fan motor Q Faulty aux relay for outdoor unit fan motor Q Soiled heat exchanger of outdoor uni...

Page 175: ...s the unit in defrost mode Is the operation current less than specified level Does the heat load increase after installation of the unit YES YES YES YES YES YES Incorrect selection of model Affection...

Page 176: ...leaning of heat exchanger is necessary Remove the source of oil mist or dust Cleaning of air filter Check fan motor Refer error code A6 Normal Fog is generated due to defrosting operation Is white fog...

Page 177: ...nd remove parts contact Normal Operation sound of draining device Correct piping manually or attach a dead weight to pipe Normal Creak generates by shrinkage of resin parts due to temperature change N...

Page 178: ...Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Dust collected inside the indoor unit are blown out Cleaning for inside of indoor unit...

Page 179: ...to turn off power switch before connect or disconnect connector or parts damage may be occurred The unit is checking to confirm that remote controller is normal Indication appears for short time Turn...

Page 180: ...seconds Remark Some functions can force the swing flap into a fixed position altough swing mode is selected on the remote control This is not an unit error but a control function to prevent draft to t...

Page 181: ...ly NO 220 240 VAC NO YES NO S2577 Is the limit switch s transfer connector correctly connected Turn the power supply off once and back on and check whether the swing flap motor swings when the power s...

Page 182: ...vice settings can be made Q Forced fan ON Q Air flow direction volume setting Depress Inspection Test Operation button for more than 4 seconds Following codes can be checked Q Malfunction codes Q Indo...

Page 183: ...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...

Page 184: ...mote 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...

Page 185: ...ress the MODE selector button The left 0 upper digit indication of the error code flashes Step Action If you hear Then 3 short beeps Follow all steps below 1 short beep Follow steps 3 and 4 Continue t...

Page 186: ...digit until the receiver of the remote control starts to beep 5 Press the MODE selector button The right 0 lower digit indication of the error code flashes Step Action If you hear Then 2 short beeps...

Page 187: ...d change the error code lower digit until the receiver of the remote control generates a continuous beep 7 Press the MODE button to return to normal status If you do not press any button for at least...

Page 188: ...unction of heat exchanger temperature sensor system C5 Malfunction of gas piping temperature sensor system C9 Malfunction of suction air temperature sensor system CC Malfunction of humidity sensor sys...

Page 189: ...eration halts due to malfunction depending on the model or condition 4 If LED B is off the transmission wiring between indoor and outdoor unit may be incorrect or disconnected Before performing the pr...

Page 190: ...n Details of Malfunction Reference Page H1P H2P Other than PC Board PC Board Out door Unit Indoor Unit remote control c c Note 1 Normal to outdoor unit c w A1 Malfunction indoor unit PC board For trou...

Page 191: ...f Malfunction Reference Page Other than PC Board PC Board Outdoor Unit Indoor Unit remote control U4 or UF Transmission error between indoor and outdoor unit 3 4 U5 Transmission error between indoor a...

Page 192: ...c 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 FFQ25 35 50 60B 130 C 5 C 83 C 20 C N A FBQ35 50 60 71 100 125B N A N A 152 2 C FDQ125 200...

Page 193: ...al times This means that you have to wait until the system shuts down to be able to see the flashing LED on the front panel and the error code on the remote control Overview This chapter contains the...

Page 194: ...usually requires more voltage for erasure than the common 5 volts used in logic circuits It functions like non volatile RAM but writing to EEPROM is slower than writing to RAM Causes The possible caus...

Page 195: ...n The error is generated when the water level reaches its upper limit and when the float switch turns OFF Causes The possible causes are Q Malfunctioning drain pump Q Improper drain piping work Q Drai...

Page 196: ...VAC Is there continuity Is the optional drain raising mechanism connected Is the short circuit connector connected to X15A on the indoor unit PCB Connect the Short circuit connector Replace the Short...

Page 197: ...up kit installed Is drain pump normal Does drain water flow in reverse during non operation Is amount of circulated drain water excessive after pump stops operation Clogged drain water discharge syst...

Page 198: ...cations Error generation The error is generated when the fan rotations are not detected while the output voltage to the fan is at its maximum Causes The possible causes are Q Malfunctioning indoor uni...

Page 199: ...connector or parts damage may be occurred Check the connections of X20A and X26A Check indoor unit fan motor and motor wiring Are X20A and X26A properly connected Is there about 12 VDC Connect X20A an...

Page 200: ...ing case In case the indoor PCB installed at the factory is for some reason changed at the installation site the capacity will not be contained in the replacement PCB To set the correct capacity for t...

Page 201: ...ty setting adapter plugged into X23A of the indoor unit PCB Is AJ displayed on the remote controller Plug a capacitor setting adapter that matches the capacity of the unit into X23A The malfunction wa...

Page 202: ...ompressor operation Q Thermistor input 4 96 V or Q Thermistor output 0 04 V Causes The possible causes are Q Malfunctioning connector connection Q Malfunctioning thermistor Q Malfunctioning PCB Q Brok...

Page 203: ...e occurred Check the connector connection Replace outdoor unit PCB Is it connected properly Is it normal Is the contact OK Check the thermistor resistance Check the contact between thermistor and PCB...

Page 204: ...remote control thermistor is malfunctioning the system can operate with the system thermistor Causes The possible causes are Q Malfunctioning thermistor Q Broken wire Troubleshooting Caution Be sure...

Page 205: ...d by the moisture sensor Malfunction decision conditions When the moisture sensor is disconnected or short circuited Supposed causes Q Faulty sensor Q Disconnection Troubleshooting Caution Be sure to...

Page 206: ...Error Codes ESIEN05 04 3 44 Part 3 Troubleshooting 3 1 3 4 5...

Page 207: ...ing and Test Run 4 1 4 3 4 5 4 Part 4 Commissioning and Test Run 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...

Page 208: ...ESIEN05 04 4 2 Part 4 Commissioning and Test Run 3 1 4 5...

Page 209: ...control display The error code helps you to find the cause of the problem Overview This chapter contains the following topics Topic See page 1 2 Malfunction of Transmission between Indoor and Outdoor...

Page 210: ...Ds on the indoor unit PC board are off it indicates that the transmission wiring between indoor and outdoor units may be incorrect or broken disconnected Caution Be sure to turn off power switch befor...

Page 211: ...indoor outdoor transmission wire and turn power supply back on Failure of outdoor unit PCB Failure of indoor unit PCB Indoor PCB malfunction Resets normally Could be outside cause noise Failure of ou...

Page 212: ...Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Set one of the remote controllers to SUB turn off the power supply temporarily then res...

Page 213: ...l and SUB remote control Q Connection among SUB remote controls Q Malfunctioning remote control PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or p...

Page 214: ...code UA Error generation The error is generated when incorrect field settings have been set for pair twin triple double twin Causes The possible causes are Q Malfunctioning indoor or outdoor unit PCB...

Page 215: ...y YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO Is there 220 240 VAC between No 1 and No 3 of X2M indoor Unit Is the power supply PCB correctly connected Is the indoor indoor a...

Page 216: ...between indoor units Malfunction Decision Conditions When the microcomputer judges that the centralized address signal is duplicated Supposed Causes Q Faulty centralized address setting Q Faulty indo...

Page 217: ...is chapter contains the following information Q Checks before test run Q Test run checks Q Setting the address for the receiver of the infrared remote control Q Setting the address for the infrared re...

Page 218: ...s Are all units securely installed Q Dangerous for turning over during storm Q Possible damage to pipe connections Is the earth wire installed according to the applicable local standard Dangerous if e...

Page 219: ...rding to the table below You can find the wire less address switch attached on the PCB of the receiver and it is visible through the small opening on the back of the receiver 4 If you use a wired and...

Page 220: ...1 To change this setting proceed as follows Step Action 1 Hold down the FILTER RESET button and the TEST button for at least 4 s to go to field set mode The display indicates the field set mode 2 Pre...

Page 221: ...and Test Run 4 15 3 4 5 1 3 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 4 Press the RESERVE butto...

Page 222: ...the field set mode and return to the normal display Step Action UP FAN RESERVE CANCEL TIMER DOWN TEMP TIME ON OFF MODE SWING TEST C TEST remote control Indoor unit Setting remote control dis play Cont...

Page 223: ...lowing 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 4 20 3 4 Overview of the Fiel...

Page 224: ...peration mode icon 22 Fan speed icon 4 Ventilation mode icon 23 Defrost hotstart mode icon 5 Ventilation icon 24 Air filter cleaning time icon 6 Air cleaning icon 25 Element cleaning time icon 7 Leave...

Page 225: ...indoor units are set at the same time Use the codes 10 to 15 to apply this group control and proceed to the next step Q If you want to set the indoor units of one group individually or if you want to...

Page 226: ...the field settings you have to change Q Mode No Q First code No Q Second code No To change the field settings proceed as follows RESERVE button INSPECTION TEST button Mode No Field setting mode UP but...

Page 227: ...hermostat ON Option Operation Malfunction 1 EKRORO Forced OFF ON OFF oper ation 3 Fan speed heating thermostat OFF LL speed Set speed Continuously OFF 5 Automatic restart Disabled Enabled 13 or 23 0 C...

Page 228: ...r units Mode No First code No Second code No FCQ FFQ FBQ FAQ FDQ FEDQ FUQ FHQ 10 or 20 0 01 01 01 01 01 01 01 1 01 01 01 02 01 2 02 02 02 02 02 02 3 01 01 01 01 01 01 01 11 or 21 0 01 01 01 01 01 01 0...

Page 229: ...23 First code No 0 Set the second code No according to the tables below FHQ FAQ FCQ and FUQ Second code No Ceiling suspended type 01 Height 2 7 m 02 2 7 m height 3 5 m 03 Not used Second code No Wall...

Page 230: ...etting is called Set Fan Speed Default the fan speed is set LL to prevent cold draft Note That a combination of modes 11 21 and 12 22 is required to enable following settings Unit Mode No First code N...

Page 231: ...given in the table below This setting is needed when the optional air outlet blocking pad has been installed The Second code No is factory set to 01 OFF OFF ON ON INDOOR FAN LL speed or set speed THE...

Page 232: ...tting The remote controls are factory set to MAIN so you only have to change one remote control from MAIN to SUB To change a remote control from MAIN to SUB proceed as follows Step Action 1 Insert a f...

Page 233: ...nit N First Code N Second Code N Mode N Field set mode Step Action 1 Switch ON the power supply of the central remote control the unified ON OFF controller and the indoor unit s 2 Hold down the INSPEC...

Page 234: ...the highest level of the three field setting levels You can change the views in the inspection level by pressing the INSPECTION TEST button The flow chart below explains the different windows of the...

Page 235: ...0 FBQ JJ 125 125 FUQ 3J 200 200 FDQ FDEQ UJ 250 250 Step Action 1 Hold down the INSPECTION TEST button for at least 4 s to enter the field setting mode 2 Hold down the INSPECTION TEST button for at le...

Page 236: ...Forced fan ON Turns the fan ON for each unit individually 44 Individual setting Sets fan speed and air flow direction for each unit individually when using group control Settings are made using the a...

Page 237: ...oning and Test Run 4 31 3 4 5 1 Part 4 4 Test Run and Operation Data Introduction This chapter contains the following information Q General operation data Overview This chapter contains the following...

Page 238: ...he remote control are as given in the table below Indoor Unit Fan H Operation Compressor Rated Frequency High Pressure Mpa Low Pressure Mpa Discharge Pipe Temperature C Suction Temperature C Indoor Un...

Page 239: ...caution When perfoming maintenance you should at least perform the following inspections Indoor Unit Conditions Outdoor Unit Conditions Cooling Operation 27 C DB 19 C WB 35 C DB Heating Operation 20 C...

Page 240: ...er Lower Lower Short Circuit of Indoor Unit Inlet Outlet Air Lower Lower Lower Outdoor Unit Fin Fouling Higher Higher Higher Short Circuit of Outdoor Unit Inlet Outlet Air Higher Higher Higher Air Mix...

Page 241: ...N05 04 Part 5 Disassembly and Maintenance 5 1 4 3 4 5 5 Part 5 Disassembly and Maintenance What is in this part This part contains the following chapters Chapter See page 1 Disassembly and Maintenance...

Page 242: ...ESIEN05 04 5 2 Part 5 Disassembly and Maintenance 3 1 5...

Page 243: ...ews and components This chapter contains the following topics Dissassembly procedures This chapter contains the following topics Topic See page 1 2 FCQ35 50 60 71B 5 4 1 3 FCQ100 125B 5 6 1 4 FFQ25 35...

Page 244: ...Disassembly and Maintenance ESIEN05 04 5 4 Part 5 Disassembly and Maintenance 3 1 5 5 1 2 FCQ35 50 60 71B Exploded view The illustration below shows the exploded view...

Page 245: ...th washer F12 Hold plate assy E1 Switch box assy F13 Panel mounting plate E2 Switch box body F14 Drain pump mounting plate E4 Bell mouth F15 Vibration isolator E5 Switch box cover assy 1 F16 Hexagon m...

Page 246: ...Disassembly and Maintenance ESIEN05 04 5 6 Part 5 Disassembly and Maintenance 3 1 5 5 1 3 FCQ100 125B Exploded view The illustration below shows the exploded view...

Page 247: ...F12 Hold plate assy E1 Switch box assy F13 Panel mounting plate E2 Switch box body F14 Drain pump mounting plate E4 Bell mouth F15 Vibration isolator E5 Switch box cover assy 1 F16 Hexagon mounting b...

Page 248: ...Disassembly and Maintenance ESIEN05 04 5 8 Part 5 Disassembly and Maintenance 3 1 5 5 1 4 FFQ25 35 50 60B Exploded view The illustration below shows the exploded view...

Page 249: ...Electric components assy F3 Localized die rear plate E2 Switch box assy F4 Localized die rear plate E3 Cover switch box F5 Localized die rear plate E4 Power transformer F6 Hanger metal assy E5 Printe...

Page 250: ...sembly and Maintenance ESIEN05 04 5 10 Part 5 Disassembly and Maintenance 3 1 5 5 1 5 FBQ35 50B Exploded view The illustration below shows the exploded view Switch box Drain pump assy Accessories Fan...

Page 251: ...cover assy 32 2 Switch box fixing plate 15 Drain pan setting plate 32 3 Terminal fixing plate 16 Drain socket cover assy 1 32 4 Option fixing plate left 17 Drain socket cover assy 2 32 5 Option fixin...

Page 252: ...sembly and Maintenance ESIEN05 04 5 12 Part 5 Disassembly and Maintenance 3 1 5 5 1 6 FBQ60 71B Exploded view The illustration below shows the exploded view Switch box Drain pump assy Accessories Fan...

Page 253: ...ver assy 32 2 Switch box fixing plate 15 Drain pan setting plate 32 3 Terminal fixing plate 16 Drain socket cover assy 1 32 4 Option fixing plate left 17 Drain socket cover assy 2 32 5 Option fixing p...

Page 254: ...embly and Maintenance ESIEN05 04 5 14 Part 5 Disassembly and Maintenance 3 1 5 5 1 7 FBQ100 125B Exploded view The illustration below shows the exploded view Switch box Drain pump assy Accessories Fan...

Page 255: ...n setting plate 31 13 Bearing fixing plate 16 Drain socket cover assy 1 32 Switch box assy 17 Drain socket cover assy 2 32 1 Switch box body 18 Hanger bracket 32 2 Switch box fixing plate 19 Drain pan...

Page 256: ...Disassembly and Maintenance ESIEN05 04 5 16 Part 5 Disassembly and Maintenance 3 1 5 5 1 8 FDQ125 200 250B Exploded view The illustration below shows the exploded view Switch box...

Page 257: ...1 Switch box fixing plate 6 28 Insulation switch box 6 3 Terminal fixing plate 6 29 Insulation switch box 6 4 Magnetic contacor 7 Hook 6 6 Switch box body 8 Filter cover 6 7 Option fixing plate left...

Page 258: ...Disassembly and Maintenance ESIEN05 04 5 18 Part 5 Disassembly and Maintenance 3 1 5 5 1 9 FDEQ71 100B Exploded view The illustration below shows the exploded view...

Page 259: ...ch box cover assy 4 5 Fan motor assy 16 2 Switch box mounting plate assy 4 6 Fan motor stand 16 3 Resin case 4 7 Motor fixing plate assy 16 4 PCB assy 4 8 Capacitor 5 microf 16 5 Transformer 4 9 Cable...

Page 260: ...Disassembly and Maintenance ESIEN05 04 5 20 Part 5 Disassembly and Maintenance 3 1 5 5 1 10 FDEQ125B Exploded view The illustration below shows the exploded view...

Page 261: ...y 16 Switch box assy 4 5 Fan motor assy 16 1 Switch box cover assy 4 6 Fan motor stand 16 2 Switch box mounting plate assy 4 7 Motor fixing plate assy 16 3 Resin case 4 8 Capacitor 5 microf 16 4 PCB a...

Page 262: ...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 Removal of PC Board 5 33 Removal...

Page 263: ...power supplies before disassembling work Procedure Step Procedure Points 1 Removing the suction grille cPush the buttons and pull down 1 Push the 2 buttons simultaneously and pul the suction grille do...

Page 264: ...minutes or more after turning off all power supplies before disassembling work Procedure Step Procedure Points 1 Removing the air filter 1 Open the suction grille Refer to the procedure for removing...

Page 265: ...ssembly and Maintenance 5 25 3 5 1 5 2 Mounting the air filter 1 Hook the air filter on projections at the top of 2 Force the bottom of the air filter into projections at the bottom of the suction gri...

Page 266: ...he corner from the pin to dismount the decoration cover 1 To remove the decoration covers in the corner pull the inside suction grille side down 2 Remove the one screw to dismount the terminal block b...

Page 267: ...hen remove the 2 mounting fixtures on the inside Section B 6 Remove the decoration panel Q Mounting the decoration coverin the corner Mount the decoration cover so that 4 hooks on the decoration cover...

Page 268: ...ts 1 Remove 4 screws each 16 screws in total to dismount the 4 seal materials 2 Remove 2 screws each 16 screws in total to dismount the 8 horizontal blade bearings Reassembling Q Make sure that the ai...

Page 269: ...ll power supplies before disassembling work Procedure Step Procedure Points 1 Remove the decoration cover in the corner located right below the refrigerant piping 2 Remove the 2 swing motor mounting s...

Page 270: ...he aluminum tape 1 After installing the swing motor be sure to turn off the power supply for reset for initializing the vane positions 2 Be sure to engage the gears on the motor side and panel side Im...

Page 271: ...mounting screws on the switch box cover 2 Remove the 1 mounting screw on the terminal block cover 3 Disconnect each connector 7 connectors in total connected to the inside of the switch box Q Transfer...

Page 272: ...140D Relay connector 5 Remove the grounding wire mounting screw 6 Remove the switch box fixing screw 7 Tilt the switch box in the direction shown by the arrow then draw the entire switch box out Statu...

Page 273: ...tch box according to the procedure for removing the switch box 1 Remove 2 switch box mounting screws to open the box 1 Disconnect the control PC board 1 Disconnect the 2 connectors between the power s...

Page 274: ...Disassembly and Maintenance 3 1 5 5 3 Disconnect the power supply PC board 1 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...

Page 275: ...re after turning off all power supplies before disassembling work Procedure Step Procedure Points Q Remove the terminal block box cover according to the procedure for removing the switch box 1 Disconn...

Page 276: ...rs Transfer connector z Wired remote control z Swing motor z Humidity sensor Connector built in the switch box z Connector used for power supply cables 1 Removing the bell mouth 1 Disconnect the 2 rem...

Page 277: ...Remove the resin nut and fan rotor retainer to dismount the fan rotor 3 Remove the fan motor 1 Disconnect the 2 connectors on the fan motor 2 Remove the nut with collar and vibro isolating runner to...

Page 278: ...rain Pump Float Switch 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 pan 1 Remove the d...

Page 279: ...wire to the drain pump mounting plate z Clamp material bundling the drain pump lead wire and float switch lead wire 3 Removing the float switch Q When removing the float switch cut the following clam...

Page 280: ...amp materials screw type fixing to the drain pan with the use of mounting screws Step Procedure Points Mounting screw For float switch Float switch Float switch lead wire Mounting plate Provided clamp...

Page 281: ...r turning off all power supplies before disassembling work Procedure Step Procedure Points Q Remove the drain pan according to the procedure for removing the drain pan 1 Cut the clamp material 2 Draw...

Page 282: ...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 Removal of Fan Rotor and Fan Motor 5 55 Removal of Drain Pan 5 58 Removal of...

Page 283: ...wer supplies before disassembling work Procedure Step Procedure Points 1 Removing the suction grille 1 To remove the suction grille slide the two tabs simultaneously and pull the suction grille down s...

Page 284: ...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 1 Open the suction grille See Removal of Sucti...

Page 285: ...Installation of the air filter 1 Hook the air filter to the protrusions located at the top of the suction grille 2 Push the lower section of the air filter into the protrusions located at the bottom o...

Page 286: ...power supplies before disassembling work Procedure Step Procedure Points 1 Removing the decoration panel 1 Remove the switch box cover and disconnect the connector of swing motor from the harness conn...

Page 287: ...is attached with 4 mounting screws Remove the two fixing screws at the switch box side first 4 Loosen the other two screws by approx 10 mm The decoration panel is hung with these two fixing screws an...

Page 288: ...5 04 5 48 Part 5 Disassembly and Maintenance 3 1 5 5 5 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...

Page 289: ...four corners of frame fixed with three screws each At that time peel the end of black sealing material of discharge port in part Q Peel not the anti sweat material but only sealing material of dischar...

Page 290: ...ESIEN05 04 5 50 Part 5 Disassembly and Maintenance 3 1 5 5 3 Remove the two screws for each bearing of horizontal vane 16 screws in total 4 Remove the horizontal vane Step Procedure Points Fixing scre...

Page 291: ...Procedure Step Procedure Points 1 Removing the decoration panel Q Refer to the Removal of Decoration Panel 2 Pull out the swing motor harness from the wiring groove 3 Remove two mounting screws for s...

Page 292: ...eration or abnormal noise may be caused Install the motor after checking of correct gear engagement 2 Install the swing motor in reverse process of removal procedure Q When install the decoration pane...

Page 293: ...h box Two pieces of M4 screws 2 Disconnect the connection wires for outdoor units and earth wire At this time cut the tie wrap fixing the connection wires Disconnect wire of remote control also At thi...

Page 294: ...xing lead wires of float switch thermistor for heating and liquid pipe thermistor 5 Remove two fixing screws located at both ends of switch box and one screw inside the box 6 Remove the switch box Fiv...

Page 295: ...ws Q A convex protrusion is provided at the position of bell mouth fixing screw to prevent misjudgment with switch box fixing position 1 Removing the fan rotor 1 Remove the resin nut and rotation stop...

Page 296: ...of the fan do not apply excessive torque to the shroud the slash part of Fig 2 Note There is no problem to hold the shroud when carrying or lifting the fan 2 Removing the fan motor 1 Disconnect the h...

Page 297: ...ESIEN05 04 Disassembly and Maintenance Part 5 Disassembly and Maintenance 5 57 3 5 1 5 3 Pull down the fan motor slowly Step Procedure Points S2657...

Page 298: ...cedure Step Procedure Points 1 Remove the drain socket to drain water from the drain hole 2 Remove the 4 mounting screws to remove the drain pan Q Remove the drain socket to drain water from the drain...

Page 299: ...or more after turning off all power supplies before disassembling work Procedure Step Procedure Points 1 Removing the drain pump 1 Remove two screws fixing float switch ass y Screwdande 2 Remove the...

Page 300: ...5 5 3 Cut the tie wrap fixing the drain hose Remove the screw c Q When pulling out the drain hose be sure to wear safety gloves to prevent your finger from injury with heat exchanger fin 4 Pull out th...

Page 301: ...n 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 1 Put the lead wire in the...

Page 302: ...rting the drain hose should be executed before installation of float switch in order to prevent the float switch from damage Q Put the tie wrap on the white line on the hose inserted Q When inserting...

Page 303: ...y 5 Install the drain pump together with the float switch with screw d and e Step Procedure Points S2661 Wiring groove Lead wires Screw Screw S2669 When install the drain pan put the lead wires of flo...

Page 304: ...ocedure Step Procedure Points 1 Disconnect the grounding terminal from the header 2 Pull apart the thermistor ass y and motor lead wire from the clamps Pull out the thermistor from the slit of heat ex...

Page 305: ...sure to use a heat resistance tie wrap when installing new thermistor Heat resistance tie wrap Parts No 1278921 Drg No 4SA90202 1 6 Pull out the thermistor from the insertion pipe Thermistor for heat...

Page 306: ...Procedure Points 1 Removing the heat exchanger 1 Remove the refrigerant pipe after completion of refrigerant collection and pump down operation Q This work should be performed with two personnel incl...

Page 307: ...of heat exchanger into intimate contact with the polystyrene partition plate correctly 2 Insert the claw section of pipe fixing plate into the contracted part of the external plate securely Step Proce...

Page 308: ...Set the lead wire with yellow tape for heating upper side while that with no tape for liquid lower side 5 Reinstall the lead wire of thermistor and anti sweat tube on the original position by using tw...

Page 309: ...he thermistor ass y through the clamps and the slit of partition plate securely as the original state Pass the lead wire of motor also through the clamp securely 8 Insert the grounding terminal to the...

Page 310: ...ccur due to leakage of cool air 10 Installing the bell mouth When install the bell mouth put the lead wires of fan motor and thermistor into the wiring groove securely as they were taking care that th...

Page 311: ...71 3 5 1 5 12 Install the switch box with two M4 screws and one M5 screw Q For installation of the switch box refer to the Removal of Switch Box on page 5 53 Q For re wiring inside the switch box ref...

Page 312: ...p X36A Air temperature thermistor X19A High tension cable of transformer X11A Low tension cable of transformer X10A Outdoor unit connection wire X27A Fan motor lead wire X20A Lead wire of remote contr...

Page 313: ...wo pieces of wire of thermistor to the switch box by using tie wraph Use tie wrap properly to prevent the wire from contact with hot part of the PC board Insert the rubber bushing of air temperature t...

Page 314: ...tch box with tie wrap j The tie wrap is used for preventing the wire from contact with a hot part on the PC board 3 Installing the decoration panel 1 Put the two holes on the decoration panel to the p...

Page 315: ...ly and Maintenance Part 5 Disassembly and Maintenance 5 75 3 5 1 5 2 Insert the lead wires of swing flap to the connector on the PC board 3 Install the cover of switch box and the grille Step Procedur...

Page 316: ...plies before disassembling work Procedure Step Procedure Points 1 Removing the receiver section 1 Remove two screws of the transmission parts box to remove the box 2 Cut the tie wrap fixing transmissi...

Page 317: ...Push three claws on the rear side of panel to remove the corner cover receiver section 2 Installing the receiver section 1 Pass through the lead wire of the receiver section and insert the corner cove...

Page 318: ...ose of the transmission parts box removed For details of setting refer to the instruction manual of infrared remote control kit 6 Mount the transmission parts box with two screws after checking that t...

Page 319: ...ew 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 R...

Page 320: ...ion Grille Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Procedure Step Procedure Points 1 Push the 2 tabs and open the suction grilles 2 Pu...

Page 321: ...ESIEN05 04 Disassembly and Maintenance Part 5 Disassembly and Maintenance 5 81 3 5 1 5 3 Grip the suction grille hinge strongly and remove the suction grille Step Procedure Points...

Page 322: ...oval 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 1 Loosen the 2 screws o...

Page 323: ...y and Maintenance 5 83 3 5 1 5 3 Pull down the control box and let it hang by the 2 locations in the rear Electrical parts can now be removed 4 Disconnect the connector mounted on the PC board 5 Remov...

Page 324: ...Disassembly and Maintenance ESIEN05 04 5 84 Part 5 Disassembly and Maintenance 3 1 5 5 6 Slide the PC board to the left away from the tabs on the right and remove the PC board Step Procedure Points...

Page 325: ...horizontal blade and detach the center shaft Two shafts provided on Types 140 and 160 2 Then gently bend the center of the horizontal blade and take both the end shafts out of their bearings Q When re...

Page 326: ...5 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 1 Push the 2 tabs...

Page 327: ...nd Maintenance Part 5 Disassembly and Maintenance 5 87 3 5 1 5 2 Loosen the 2 hexagon set screws of the intermediate bearing 3 Slide the intermediate bearing to the right and remove the fan rotor ass...

Page 328: ...and get the connector exposed Q Aconnectors Connector 1 handles high voltage 220 240 V so be sure to turn of the power supply before disconnecting 5 Disconnect the 2 fan motor connecting connectors 6...

Page 329: ...oval 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 Q Remove the fan rotor according to the pr...

Page 330: ...enance ESIEN05 04 5 90 Part 5 Disassembly and Maintenance 3 1 5 5 2 Slide the left side panel toward the front of the unit and remove 3 Remove the 2 bearing installation screws and remove the bearing...

Page 331: ...e disassembling work Procedure Step Procedure Points 1 Remove the 7 bottom panel installation screws 2 each on the left and right 3 in the rear and remove the bottom panel Remove the rear surface scre...

Page 332: ...Disassembly and Maintenance ESIEN05 04 5 92 Part 5 Disassembly and Maintenance 3 1 5 5 3 Remove the drain pan retainer 2 screw...

Page 333: ...he screw from the right side panel Slide the right side panel toward the front and detach it 2 Cut off the tie wrap of the swing motor connector 3 Disconnect the connector from the swing motor connect...

Page 334: ...0 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 1...

Page 335: ...fter turning off all power supplies before disassembling work Procedure Step Procedure Points 1 Opening suction grille Push two tabs on suction grille toward the center of grille at the same time 2 Pu...

Page 336: ...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 Unhook two drop prevention strings...

Page 337: ...ESIEN05 04 Disassembly and Maintenance Part 5 Disassembly and Maintenance 5 97 3 5 1 5 3 Disengage three hooks located at rear side of the grille to remove suction grille Step Procedure Points...

Page 338: ...wer supplies before disassembling work Procedure Step Procedure Points 1 Remove two mounting screws to dismount switch box cover 2 Remove suction air temperature thermistor attached to bell mouth 3 Be...

Page 339: ...aintenance Part 5 Disassembly and Maintenance 5 99 3 5 1 5 4 Remove bell mouth by sliding to piping direction 5 To dismount fan remove washer based nut using double ended wrench 6 Remove fan by pullin...

Page 340: ...disassembling work Procedure Step Procedure Points 1 Removing fan motor a Disconnect connector b Remove lead wire retaining plate Caution Fan motor can be removed without removing the lead wire retai...

Page 341: ...ESIEN05 04 Disassembly and Maintenance Part 5 Disassembly and Maintenance 5 101 3 5 1 5 3 Remove motor by pulling down Step Procedure Points...

Page 342: ...ait 10 minutes or more after turning off all power supplies before disassembling work Procedure Step Procedure Points Q Remove suction grille according to the Removal of air filter and that of suction...

Page 343: ...ce 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 cov...

Page 344: ...Disassembly and Maintenance ESIEN05 04 5 104 Part 5 Disassembly and Maintenance 3 1 5 5 6 Remove drain pan by pulling it down Step Procedure Points...

Page 345: ...disassembling work Procedure Step Procedure Points 1 Drain pump is located at piping side Cut clamp material of hose and disconnect hose from pump Caution When reconnect drain hose with the pump secur...

Page 346: ...5 Disassembly and Maintenance 3 1 5 5 4 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 bas...

Page 347: ...minutes or more after turning off all power supplies before disassembling work Procedure Step Procedure Points Q Remove suction grille according to Removal of Suction Grille 1 Swing motor is located a...

Page 348: ...Disassembly and Maintenance ESIEN05 04 5 108 Part 5 Disassembly and Maintenance 3 1 5 5 4 Remove two screws to dismount swing motor Step Procedure Points...

Page 349: ...5 1 5 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 1 To remove ho...

Page 350: ...Disassembly and Maintenance ESIEN05 04 5 110 Part 5 Disassembly and Maintenance 3 1 5 5 2 Remove horizontal blade Step Procedure Points...

Page 351: ...llowing 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...

Page 352: ...more after turning off all power supplies before disassembling work Procedure Step Procedure Points 1 Put your fingers on protrusions at left and right side of the unit to open the front panel 2 To r...

Page 353: ...y and Maintenance Part 5 Disassembly and Maintenance 5 113 3 5 1 5 3 Disengage the holding section on upper right of the panel by pushing toward left then slide toward right to remove the front panel...

Page 354: ...panel in accordance with Removal of Front Panel 1 Remove three pieces of front grille fixing screws 2 Remove the front grille by pulling forward while pushing three hooks located at upper part of the...

Page 355: ...ng 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 1 Open the horizontal blade 2 Bend...

Page 356: ...ving the vertical blade 1 Disengage the protrusion on upper side of blade from holder plate Three locations 2 Push the vertical blade backward and pull the lower side forward to disengage the blade fr...

Page 357: ...dure Points Q Removing the front grille in accordance with Removal of Front Grille 1 Remove the screw on the service cover 2 Remove the screw on the drip proof plate 3 Remove the screw for the groundi...

Page 358: ...orming vacuum dehydration Caution Don t mix air or the like other than the specified refrigerant into a refrigeration circle Mixing of air or other gas causes abnormal high pressure in the refrigerati...

Page 359: ...electrical box in accordance with Removal of Electrical Box 1 Removing the fan motor 1 Insert a Phillips tip screwdriver into the air outlet and remove the screws fixing the fan motor and fan rotor T...

Page 360: ...r more after turning off all power supplies before disassembling work Procedure Step Procedure Points Q Removing the front grille in accordance with Removal of Front Grille 1 Disconnect the air swing...

Page 361: ...h Removal of Front Grille Q The drain pan and bottom frame are designed as an integral type Q Insert the drain hose to the hose plug securely as far as it will go 1 Pull out the drain hose attached on...

Page 362: ...owing 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...

Page 363: ...nance 5 123 3 5 1 5 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 1 Hold the ai...

Page 364: ...ork Procedure Step Procedure Points 1 Remove the left and right side panels 1 white screw each on left and right The wiring diagram is applied to the right side panel and troubleshooting list is appli...

Page 365: ...ure Points Q Remove the left and right side panels operation display cover and front grille according to the procedures for their removal The left and right side panels have to be taken off in order t...

Page 366: ...ure Points Q Remove the outer panels according to the procedure for Removal of Electrical Parts Box 1 Disconnect the front side wiring connector connected to the PC board 2 Disconnect the PC board fro...

Page 367: ...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 Q Remove the electrical parts box according...

Page 368: ...Maintenance ESIEN05 04 5 128 Part 5 Disassembly and Maintenance 3 1 5 5 3 Remove the swing motor from the swing Louvre unit You can replace the swing motor without removing the swing Louvre unit Step...

Page 369: ...r turning off all power supplies before disassembling work Procedure Step Procedure Points Q Remove side panels and other external casing and electrical parts box according to their removal procedures...

Page 370: ...disassembling work Procedure Step Procedure Points Q If removing the drain pan Carry out pump down disconnect the transmission piping and wiring and remove the main unit The bottom panel is fastened...

Page 371: ...y and Maintenance 5 131 3 5 1 5 3 Remove the air discharge unit 7 screws Center of air discharge section also screw fastened 4 Remove the drain pan 1 Pull left side toward yourself 2 Move the drain ho...

Page 372: ...ore disassembling work Procedure Step Procedure Points Q Before dismounting a heat exchanger make sure to proceed pump down refrigerant to outdoor unit and disconnect the connection pipe and wiring th...

Page 373: ...tep Procedure Points Q Remove the heat exchanger according to Removal of Heat Exchanger You can also remove the auxiliary electric heater without removing the heat exchanger 1 Remove the 2 screws of t...

Page 374: ...Disassembly and Maintenance ESIEN05 04 5 134 Part 5 Disassembly and Maintenance 3 1 5 5...

Page 375: ...4 19 Changing Field settings wired remote control k 4 11 Field settings infrared remote control k 4 12 Maintenance mode settings k 4 21 Checking Clogged points k 3 60 Fan motor k 3 61 PCB s Hall IC k...

Page 376: ...k 3 59 Exploded views Indoor units k 5 3 F Factory settings Indoor units k 4 14 Fan and flap operations k 2 22 Fan Bearing k 5 89 Fan Motor k 5 55 5 86 5 100 5 119 5 129 Fan Rotor k 5 55 5 86 5 119 5...

Page 377: ...ermistor k 5 64 Replacement of heat exchanger k 5 66 Replacement of PC board k 5 72 Replacement of receiver of infrared remote control k 5 76 FHQ35 125B Removal of air filter and suction grille k 5 80...

Page 378: ...ssion between indoor and outdoor unit k 3 46 Transmission between indoor unit and remote control k 3 48 Transmission between MAIN and SUB remote control k 3 49 Motor lock Indoor unit fan k 3 36 O Oper...

Page 379: ...3 5 80 5 96 Swing Motor 5 51 5 93 5 107 5 120 Switch box Layout 1 95 Removal 5 53 T Technical specifications k 1 45 Test run Checks k 4 4 Thermistor Indoor Heat Exchanger k 5 64 Thermistors Checking k...

Page 380: ...ESIEN05 04 vi Index 3 1 4 5 W Wiring diagrams Indoor units k 1 61...

Page 381: ...h the European regulations that guarantee the safety of the product ESiEN05 04 02 2007 Prepared in Belgium by Lannoo Copyright Daikin q R 7 bst The present publication is drawn up by way of informatio...

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