Daikin ERSQ 011AAV1 Service Manual
  1. Manuals
  2. Brands
  3. Daikin Manuals
  4. Heat Pump
  5. ERSQ 011AAV1
  6. Service manual

Daikin ERSQ 011AAV1 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

ESIE09-08

Service Manual

Daikin ALTHERMA HT
ERSQ 011/014/016 AAV1, AAY1
ERRQ 011/014/016 AAV1, AAY1
EKHBRD 011/014/016 AAV1, AAY1
R-410A, R-134a
EKHTS 200/260 A
EKHTSU 200/260 A

Advertisement

Table of Contents
loading

Related Manuals for Daikin ERSQ 011AAV1

Summary of Contents for Daikin ERSQ 011AAV1

  • Page 1: Service Manual

    ESIE09-08 Service Manual Daikin ALTHERMA HT ERSQ 011/014/016 AAV1, AAY1 ERRQ 011/014/016 AAV1, AAY1 EKHBRD 011/014/016 AAV1, AAY1 R-410A, R-134a EKHTS 200/260 A EKHTSU 200/260 A...

  • Page 3: Table Of Contents

    ESIE09-08 Table of Contents Table of Contents ................i 1. Introduction .....................v 1.1 Safety Cautions ..................v 1.2 PREFACE ....................ix Part 1 - General Information ............1 1. Model Names of Indoor/Outdoor Units & Tanks ........2 Part 2 - Specifications..............5 1.
  • Page 4 ESIE09-08 2.2 Compressor PI Control................50 2.3 Electronic Expansion Valve PI Control R-410A circuit ......51 2.4 Electronic Expansion Valve PI Control R-134a circuit......51 3. Special Control..................52 3.1 Startup Control ..................52 3.2 Defrosting Operation ................53 3.3 Pump-down Residual Operation ............54 3.4 Stopping Operation ................55 4.
  • Page 5 ESIE09-08 410A .....................137 3.7 “C5” Indoor Unit: Malfunction of Tank Thermistor (R2T) ......138 3.8 “C9” Indoor Unit: Return Water Thermistor (R4T) ........139 3.9 “CA” Indoor Unit: Leaving Water Thermistor Error (R5T).....140 3.10 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller....................141 3.11 “E1”...
  • Page 6 ESIE09-08 3.47 “LC” Indoor Unit: Malfunction of Transmission between Inverter and Con- trol PC Board..................186 3.48 “LH” Indoor Unit: Converter Error ............187 3.49 “P1” Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit .188 3.50 “P1” Indoor Unit: High Voltage of Capacitor in Main Inverter Circuit ..189 3.51 “PJ”...

  • Page 7: Introduction

    ESIE09-08 Introduction 1. Introduction Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work. Warnings The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely.
  • Page 8 Introduction ESIE09-08 Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the heat pump by splashing water. Washing the unit with water can cause an electrical shock. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks.
  • Page 9 ESIE09-08 Introduction Warning When connecting the cable between the indoor and outdoor units, make sure that the terminal cover does not lift off or dismount because of the cable. If the cover is not mounted properly, the terminal connection section can cause an electrical shock, excessive heat generation or fire.
  • Page 10 Introduction ESIE09-08 Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it.

  • Page 11: Preface

    This is the new service manual for Daikin's Year 2009 Daikin Altherma HT (high temperature) air to water heat pump. Daikin offers a wide range of models to respond to the residential heating market. We are confident that customers will be able to find the models that best suit their needs.
  • Page 12 Introduction ESIE09-08...

  • Page 13: Part 1 - General Information

    ESIE09-08 Part 1 - General Information 1. Model Names of Indoor/Outdoor Units & Tanks ........2 General Information...

  • Page 14: Model Names Of Indoor/Outdoor Units & Tanks

    Model Names of Indoor/Outdoor Units & Tanks ESIE09-08 1. Model Names of Indoor/Outdoor Units & Tanks Indoor Units Type Model Name Power Supply 011 AA 014 AA EKHBRD 016 AA 011 AA 014 AA EKHBRD 016 AA Outdoor Units Type Model Name Power Supply 011 AA...
  • Page 15 ESIE09-08 Model Names of Indoor/Outdoor Units & Tanks Tank Model Name EKHTS 200 A EKHTS 260 A EKHTSU 200 AA EKHTSU 260 AA General Information...
  • Page 16 Model Names of Indoor/Outdoor Units & Tanks ESIE09-08 General Information...

  • Page 17: Part 2 - Specifications

    ESIE09-08 Part 2 - Specifications 1. Specifications ..................6 1.1 Outdoor Units ...................6 1.2 Indoor Unit....................8 Specifications...

  • Page 18: Specifications

    Ambient conditions: 7°CDB/6°CWB Condition 2 EW: 70°C, LW: 80°C, ΔT=10°C Ambient conditions: 7°CDB/6°CWB Technical Specifications Outdoor units ER(S/R)Q011AA(V1/Y1) ER(S/R)Q014AA(V1/Y1) ER(S/R)Q016AA(V1/Y1) Casing Colour Daikin White Daikin White Daikin White Material Painted galvanised steel Painted galvanised steel Painted galvanised steel Dimensions Unit Height 1345...

  • Page 19: Electrical Specifications

    ESIE09-08 Specifications Outdoor units ER(S/R)Q011AA(V1/Y1) ER(S/R)Q014AA(V1/Y1) ER(S/R)Q016AA(V1/Y1) Refrigerant Oil Type Daphne FVC68D Daphne FVC68D Daphne FVC68D Charged Volume Piping Liquid Quantity Connections Type Flare Flare Flare Diameter (OD) 9,52 9,52 9,52 Quantity Type Flare Flare Flare Diameter (OD) 15,9 15,9 15,9 Drain Quantity...

  • Page 20: Indoor Unit

    Specifications ESIE09-08 Indoor Unit Capacity Information Indoor Units EKHBRD011AA(V1/Y1) EKHBRD014AA(V1/Y1) EKHBRD016AA(V1/Y1) combination Condition 1 Heating Nominal indoor units + capacity outdoor units Heating PI Nominal 3,57 4,66 5,57 Nominal 3,08 3,00 2,88 Condition 2 Heating Nominal capacity Heating PI Nominal 4,40 5,65 6,65...
  • Page 21 ESIE09-08 Specifications Indoor units EKHBRD011AA(V1/Y1) EKHBRD014AA(V1/Y1) EKHBRD016AA(V1/Y1) Water circuit Piping connections diameter inch G 1”1/4 (female) G 1”1/4 (female) G 1”1/4 (female) Piping inch 1” 1” 1” Safety valve Manometer Drain valve / Fill valve Shut off valve Air purge valve Heating water system minimum water volume Heating water system maximum water...
  • Page 22 Specifications ESIE09-08 Specifications...

  • Page 23: Part 3 - Refrigerant Circuit & Functional Parts

    ESIE09-08 Part 3 - Refrigerant Circuit & Functional Parts 1. Refrigerant Circuit .................12 Outdoor Unit .................12 Indoor Unit ..................14 2. Functional Parts Layout ................16 2.1 ERRQ 011/014/016 AAV1, ERSQ 011/014/016 AAV1 ......16 2.2 ERRQ 011/014/016 AAY1, ERSQ 011/014/016 AAY1 ......18 2.3 EKHBRD 011/014/016 AAV1, EKHBRD 011/014/016 AAY1 ....20 2.4 EKHTS 200/260 A ..................22 2.5 EKHTSU 200/260 A ................24...

  • Page 24: Refrigerant Circuit

    Refrigerant Circuit ESIE09-08 1. Refrigerant Circuit Outdoor Unit ERRQ - ERSQ No. in refrigerant Symbol Name Major Function system diagram Inverter compressor is operated on frequencies between 36 Hz and 195 Hz by using Inverter compressor (INV) the inverter. In total there are 31 steps. Since the system is of air heat exchanging type, the fan is operated at 8 (9)-step Inverter fan rotation speed by using the inverter.
  • Page 25 ESIE09-08 Refrigerant Circuit Refrigerant Circuit...

  • Page 26: Indoor Unit

    Refrigerant Circuit ESIE09-08 Indoor Unit EKHBRD 011/014/016 AA(V1/Y1) No. in refrigerant Symbol Name Major Function system diagram Inverter compressor on Inverter compressor is operated on frequencies between 40 Hz and 210 Hz by using R-134a the inverter. Max. of 30 steps. Used to switch the operation mode between heating and defrost.
  • Page 27 ESIE09-08 Refrigerant Circuit Refrigerant Circuit...

  • Page 28: Functional Parts Layout

    Functional Parts Layout ESIE09-08 2. Functional Parts Layout ERRQ 011/014/016 AAV1, ERSQ 011/014/016 AAV1 Bird’s-eye view Solenoid valve S1NPH High pressure sensor Oil separator Y1S 4-way valve Service port S1NPL Low pressure sensor Accumulator Y3S Solenoid valve S1HP High pressure switch R2T Discharge thermistor Service port liquid Service port gas...

  • Page 29: Back View

    ESIE09-08 Functional Parts Layout Back view R6T Subcool thermistor R3T Suction 1 thermistor R5T Suction 2 thermistor R1T Ambient thermistor R8T Liquid pipe 2 thermistor R4T Coil thermistor R7T Liquid pipe 1 thermistor Refrigerant Circuit...

  • Page 30: Errq 011/014/016 Aay1, Ersq 011/014/016 Aay1

    Functional Parts Layout ESIE09-08 ERRQ 011/014/016 AAY1, ERSQ 011/014/016 AAY1 Bird’s-eye view S1NPH High pressure sensor Y1S 4-way valve Solenoid valve Service port Oil separator S1NPL Low pressure sensor Y3S Solenoid valve S1PH High pressure switch Accumulator R2T Discharge thermistor Service port gas Service port liquid Compressor...
  • Page 31 ESIE09-08 Functional Parts Layout Back view Subcool gas pipe thermistor Suction thermistor R1T Ambient thermistor R8T Liquid pipe thermistor Liquid pipe thermistor Refrigerant Circuit...

  • Page 32: Ekhbrd 011/014/016 Aav1, Ekhbrd 011/014/016 Aay1

    Functional Parts Layout ESIE09-08 EKHBRD 011/014/016 AAV1, EKHBRD 011/014/016 AAY1 Front view 13 12 Top view Refrigerant Circuit...
  • Page 33 ESIE09-08 Functional Parts Layout Bird’s-eye view Legend Name Name High pressure sensor Refrigerant liquid connection R-410A High pressure switch Refrigerant gas connection R-410A Compressor R-134a Return water connection from tank Outlet water connection Low pressure sensor Inlet water connection 4-way valve (R-134a) Filter Accumulator R-134a Solenoid valve...

  • Page 34: Ekhts 200/260 A

    Functional Parts Layout ESIE09-08 EKHTS 200/260 A Front view Tank sensor Bottom view Tank sensor Recirculation connection Hot water out Cold water in Coil in Coil out from EKHBRD towards EKHBRD Refrigerant Circuit...
  • Page 35 ESIE09-08 Functional Parts Layout Top view Worm’s-eye view Tank sensor Recirculation connection Hot water out Cold water in Coil in (from EKHBRD) Coil out (to EKHBRD) Bottom adaptor Refrigerant Circuit...

  • Page 36: Ekhtsu 200/260 A

    Functional Parts Layout ESIE09-08 EKHTSU 200/260 A Front view Tank sensor Refrigerant Circuit...
  • Page 37 ESIE09-08 Functional Parts Layout Bottom view Pressure relief connection Recirculation connection Hot water out Cold water in Coil in (from EKHBRD) Coil out (towards EKHBRD) Bird’s-eye view Pressure relief connection Anode Hot water pipe Heat exchanger Recirculation pipe Coil out connection towards EKHBRD Coil in connection from EKHBRD Cold water in connection Recirculation connection...
  • Page 38 Functional Parts Layout ESIE09-08 Refrigerant Circuit...

  • Page 39: Part 4 - Electrical Circuit

    ESIE09-08 Part 4 - Electrical Circuit 1. Switch Box Layout - Indoor Unit EKHBRD..........28 2. PCB Layout for EKHBRD 011/014/016 AAV1........30 2.1 Main PCB - A1P ..................30 2.2 Control - PCB - A3P ................32 2.3 Inverter PCB - A4P.................34 2.4 Filter PCB - A6P ..................37 2.5 QA PCB - A5P..................39 2.6 Inverter Control PCB - Three Phase - A4P ..........40 2.7 Inverter PCB - Three Phase - A5P ............42...

  • Page 40: Switch Box Layout - Indoor Unit Ekhbrd

    Switch Box Layout - Indoor Unit EKHBRD ESIE09-08 1. Switch Box Layout - Indoor Unit EKHBRD EKHBRD 011/014/016 AAV1 Legend Name Main PCB (A1P) Control PCB (A3P) Inverter PCB (A4P) QA PCB (A5P) Filter PCB (A6P) Terminal block X1M: Main power supply Terminal block X2M: AC connections Terminal block X3M: DC connections DC connector X1Y...
  • Page 41 ESIE09-08 Switch Box Layout - Indoor Unit EKHBRD EKHBRD 011/014/016 AAY1 Legend Name Main PCB (A1P) Control PCB (A3P) Inverter PCB (A5P) Inverter control PCB (A4P) Filter PCB (A6P) Terminal block X1M: Main power supply Terminal block X2M: AC connections Terminal block X3M: DC connections DC connector X1Y Pump connector X2Y...

  • Page 42: Pcb Layout For Ekhbrd 011/014/016 Aav1

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 2. PCB Layout for EKHBRD 011/014/016 AAV1 Main PCB - A1P Main PCB - single phase Fuse X60A X19A X35A X33A X85A X50A 3,15A 250V green blue white white white yellow white white white X36A red black...
  • Page 43 ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Legend Connector Connected to Color Emergency switch Yellow K1E: electronic expansion valve White X12A R4T: returning water thermistor Yellow X15A White X16A White X17A R5T: leaving water thermistor Yellow X18A R3T: liquid thermistor R-410A X19A White X20A...

  • Page 44: Control - Pcb - A3P

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Control - PCB - A3P Control PCB - single phase X21A X23A white orange yellow black pink green white yellow X11A blue X12A white X25A white X13A X1A blue white X14A X15A X16A X10A Fuse black...
  • Page 45 ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Legend Connector Color Connected to Blue Orange X2M [12 - 13] Yellow Black X2M [3 - 4] Pink 2-way valve (R-410A) Green Bridge with filter capacitors White X10A White X35A of PCB A1P -> 16V power supply X11A Yellow X12A...

  • Page 46: Inverter Pcb - A4P

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Inverter PCB - A4P Inverter PCB - single phase Refrigerant Circuit...
  • Page 47 ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Inverter PCB X106A X107A X111A EC09008 X21A X13A X11A X12A X51A X41A X18A X17A X32A X25A X28A X77A Legend Connector Color Connected to Function White White White X809A of PCB A5P QA PCB X11A White R6T by connector X1Y [13, 14]...
  • Page 48 PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 X41A Blue Service purpose X51A Blue X77A Yellow K1A & connector X3Y [9, 10] Interface relay of S1PH & Q2L X106A X107A White X111A White Fin thermistor Indication power supply Fuse 1 5A, 250V for M1F, M2F Fuse 2 6,3A, 250V for Y1S, ECHC LB of PCB A6P...

  • Page 49: Filter Pcb - A6P

    ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Filter PCB - A6P Filter PCB - single phase Refrigerant Circuit...
  • Page 50 PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Filter PCB - A6P Legend Connector Color Connected to - function X1M [L - N] Power supply 1~230V Blue LC - NC Inverter PCB Blue X2M [10 - 11] via V5C Blue Green cable, Earth white connector 6,3A 250V [fuse]...

  • Page 51: Qa Pcb - A5P

    ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 QA PCB - A5P QA PCB - single phase X809A white X801A white Fuse F3U 6,3A 250V Green X803A black QA PCB - A5P X809A X801A X803A Legend Connector Color Connected to - function X801A White X2M [8 - 9] by V5C...

  • Page 52: Inverter Control Pcb - Three Phase - A4P

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Inverter Control PCB - Three Phase - A4P Inverter control PCB - three phase X803A X25A X28A X27A X77A X21A X41A X12A L11A X11A X13A X17A L21A X18A L31A Refrigerant Circuit...
  • Page 53 ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Legend Connector Color Connected to - function Phase L1 Phase L2 Phase L3 Phase N L11A L11B - filter PCB L12A L21B - filter PCB L13A L31B - filter PCB N1B - filter PCB Ivory Inverter PCB X104A White...

  • Page 54: Inverter Pcb - Three Phase - A5P

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Inverter PCB - Three Phase - A5P Inverter PCB - three phase X104A L32A X108A X32A L12A L22A X105A X111A X142A X141A X191A X109A X107A X106A Refrigerant Circuit...
  • Page 55 ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Legend Connector Color Connected to - function L12A Reactor - phase 1 L22A Reactor - phase 2 L32A Reactor - phase 3 Compressor - phase U Compressor - phase V Compressor - phase W X32A White X104A...

  • Page 56: Digital I/O Pcb (Option Pcb A7P)

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Digital I/O PCB (Option PCB A7P) Digital I/O PCB (option PCB A7P) X2A / CN2 Digital I/O PCB (option PCB A7P) X2A/CN2 Refrigerant Circuit...
  • Page 57 ESIE09-08 PCB Layout for EKHBRD 011/014/016 AAV1 Legend Connector Color Connected to - function White X2M [6 - 7] White X33A of main PCB (A1P) Cooling/heating ON/OFF output (optional power supply) Alarm output (optional power supply) Y1 - YC Domestic hot water mode ON/OFF output Y3 - YC Solar priority Refrigerant Circuit...

  • Page 58: Demand Pcb (Option Pcb A8P)

    PCB Layout for EKHBRD 011/014/016 AAV1 ESIE09-08 Demand PCB (Option PCB A8P) Demand PCB (option PCB A8P) X80A used in safety mixing mixing used together combination feed- station 1 station 2 with 1, 2, 3 with 5 for back used in used in and/or 4 thermostat...

  • Page 59: Part 5 - Function

    ESIE09-08 Part 5 - Function 1. Operation Mode ..................48 2. Basic Control..................49 2.1 Normal Operation ...................49 2.2 Compressor PI Control................50 2.3 Electronic Expansion Valve PI Control R-410A circuit ......51 2.4 Electronic Expansion Valve PI Control R-134a circuit......51 3. Special Control..................52 3.1 Startup Control ..................52 3.2 Defrosting Operation ................53 3.3 Pump-down Residual Operation ............54...

  • Page 60: Operation Mode

    Operation Mode ESIE09-08 1. Operation Mode Operation in stop mode Indoor unit stop or Indoor unit thermostat ON thermostat OFF Malfunction/Standby Restart standby Pressure (Compressor stop) equalization prior to startup Malfunction / Standby Indoor unit stop or thermostat OFF Startup control Pump-down •...

  • Page 61: Basic Control

    ESIE09-08 Basic Control 2. Basic Control Normal Operation Heating Operation Outdoor Unit Actuator Operation Remarks Used for high pressure protection control, low pressure protection control, discharge pipe Compressor Compressor PI control temperature protection control, and compressor operating frequency upper limit control with inverter protection control.

  • Page 62: Compressor Pi Control

    Basic Control ESIE09-08 2.2 Compressor PI Control Compressor PI Control Carries out the compressor capacity PI control to maintain Tc at constant during heating operation to ensure stable unit performance. Outdoor compressor (R-410A) INV(Fullload) INV(Unload) INV(Fullload) INV(Unload) INV(Fullload) INV(Unload) 36.0Hz 80.0Hz 140.0Hz 39.0Hz...

  • Page 63: Electronic Expansion Valve Pi Control R-410A Circuit

    ESIE09-08 Basic Control Electronic Expansion Valve PI Control R-410A circuit Main Electronic Expansion Valve EV1 Control - Outdoor Unit Carries out the electronic expansion valve (Y1E) PI control to maintain the evaporator outlet superheated degree (SH) at constant during heating operation to make maximum use of the outdoor unit heat exchanger (evaporator).

  • Page 64: Special Control

    Special Control ESIE09-08 3. Special Control Startup Control This control is used to equalize the pressure in the front and back of the compressor prior to the startup of the compressor, thus reducing startup loads. Furthermore, the inverter is turned ON to charge the capacitor. In addition, to avoid stresses to the compressor after the startup, the following control is made and the position of the four way valve is also determined.

  • Page 65: Defrosting Operation

    ESIE09-08 Special Control 3.2 Defrosting Operation The defrost operation is performed to solve frost on the outdoor unit heat exchanger when heating mode is active to recover the heating capacity. [Conditions to start] The defrost operation is started referring following conditions. Outdoor heat exchanger heat transfer co-efficient Temperature of heat-exchange (Tb) <...

  • Page 66: Pump-Down Residual Operation

    Special Control ESIE09-08 3.3 Pump-down Residual Operation When activating compressor, if the liquid refrigerant remains in the heat-exchanger, the liquid enters into the compressor and dilutes oil therein resulting in decrease of lubricity. Therefore, the pump-down residual operation is performed to collect the refrigerant in the heat- exchanger when the compressor is down.

  • Page 67: Stopping Operation

    ESIE09-08 Special Control Stopping Operation Operation of the actuator when the system is down, is cleared up. 3.4.1 When System is in Stop Mode OUTDOOR Actuator Operation Compressor Outdoor unit fan Four way valve Keep former condition. Main electronic expansion valve (EV1) 0 pls Subcooling electronic expansion valve (EV3) 0 pls...

  • Page 68: Protection Control

    Protection Control ESIE09-08 4. Protection Control High Pressure Protection Control This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure. In heating operation [R-410A] High-pressure drop Pc>3.04MPa...
  • Page 69 ESIE09-08 Protection Control In heating operation [R-134a] High pressure drop High pressure not limited Pc: HP pressure sensor detection value Pc<2.7MPa during - defrost Pc>2.85MPa - compressor stop High pressure limited INV upper limit frequency : 1-step down from current compressor frequency After 10 sec.

  • Page 70: Low Pressure Protection Control

    Protection Control ESIE09-08 4.2 Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure. In heating operation [R-410A] Pe: LP pressure sensor detection value Pe<0.17MPa Low pressure not limited •...
  • Page 71 ESIE09-08 Protection Control In heating operation [R-134a] Pe: LP pressure sensor detection value Low pressure not limited Pe>0.23MPa Max INV freq = max RPS for each HP Pe<0.17MPa Low pressure limited INV upper limit frequency : 3-step down from current compressor frequency Pe<0.17MPa After 10 sec.

  • Page 72: Discharge Pipe Protection Control

    Protection Control ESIE09-08 4.3 Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature. INV compressor [R-410A] Discharge pipe protection HTdi : Value of INV compressor discharge pipe control not limited temperature (Tdi) compensated with outdoor air temperature...

  • Page 73: Inverter Protection Control

    ESIE09-08 Protection Control Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction, or transient inverter overcurrent, and fin temperature increase. Inverter overcurrent protection control [R-410A] Not limited • Inverter current &...
  • Page 74 Protection Control ESIE09-08 Inverter fin temperature control [R-410A] Not limited • Tfin < 76°C & Tfin 79°C • INV upper limit frequency=max Hz Limited INV upper limit frequency: 1-step down from current compressor frequency Tfin 79°C • 10 sec. & •...

  • Page 75: Other Control

    ESIE09-08 Other Control 5. Other Control Heating Operation Prohibition If the ambient temperature becomes higher than (24°C + value of setting [9-02]) no space heating is possible Heating for domestic hot water is possible till 35°C ambient temperature. For more details see chapter of settings. Inverter Fan Control (Switch Box Fan) Compressor ON Tfin>50°C...

  • Page 76: Outline Of Control (Indoor Unit)

    Outline of Control (Indoor Unit) ESIE09-08 6. Outline of Control (Indoor Unit) 6.1 Freeze Prevention Freeze-up The freeze-up prevention is only active when the unit is in thermo OFF condition. Prevention by [Start condition] Thermo Off AND/OR*: Condition Outdoor ambient temperature < 4°C Leaving or return water temperature <...

  • Page 77: Simultaneous Demand Of Space Heating And Domestic Water Heating

    ESIE09-08 Outline of Control (Indoor Unit) Simultaneous demand of space heating and domestic water heating Space heating operation can be executed in 3 different ways: Remote controller leaving water temperature control External room thermostat Remote controller room temperature control The domestic water heating operation can be controlled in 2 different ways: Reheat operation: The reheat mode will prevent the domestic hot water from cooling down lower than a certain temperature.
  • Page 78 Outline of Control (Indoor Unit) ESIE09-08 Domestic hot water lower limit temperature Domestic hot water upper limit temperature (maximum possible storage temperature) [b-03] Domestic hot water reheat minimum temperature [b-00] Domestic hot water reheat maximum temperature [b-01] Simultaneous demand ONLY space heating request 2.
  • Page 79 ESIE09-08 Outline of Control (Indoor Unit) External room thermostat When the reheat temperature is reached, the further heat up of the domestic hot water tank will be decided by the external room thermostat thermo conditions and running timers which are programmed by the installer.
  • Page 80 Outline of Control (Indoor Unit) ESIE09-08 2. Storage operation When requesting space heating and domestic water heating (storage) at the same time, this involves that the storage function is active and the start timer is reached (setting 1) during space heating operation. The 3-way valve will switch over to domestic water heating operation.
  • Page 81 ESIE09-08 Outline of Control (Indoor Unit) Remote controller room temperature control When the reheat temperature is reached, the further heat up till storage temperature of the domestic hot water tank will be decided by the remote controller room thermostat in order to prevent that the room temperature drops too much.
  • Page 82 Outline of Control (Indoor Unit) ESIE09-08 2. Storage operation When requesting space heating and domestic water heating (storage) at the same time, this involves that the minimum reheat temperature is reached (setting [b-00]) during space heating operation. The 3-way valve will switch over to the domestic hot water side, then the domestic water will be heated, but as soon as the room temperature drops 3°C from set point (smart logic), the 3-way valve will go to original position and start space heating till 0.5°C above set point, then the 3-way valve will switch over to the domestic hot water side...

  • Page 83: Part 6 - Test Operation

    ESIE09-08 Part 6 - Test Operation 1. Test Operation ..................74 1.1 Procedure and Outline ................74 1.2 Air Tight Test and Vacuum Drying ............76 1.3 Additional Refrigerant Charge ..............77 1.4 Operation when Power is Turned On .............81 2. Outdoor Unit PC Board Layout .............82 3.

  • Page 84: Test Operation

    Test Operation ESIE09-08 1. Test Operation Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 1.1.1 Check Work Prior to Turn Power Supply On Check the below items. Power wiring Control transmission wiring between units Earth wire Check on refrigerant piping Check air tight test and vacuum...

  • Page 85: Turn Power On

    ESIE09-08 Test Operation 1.1.2 Turn Power On Be sure to turn the power on 6 hours before starting operation to Turn outdoor unit p ower on . protect compressors. Close outside panels of the outdoor unit. Turn indoor unit p ower on . Wait until initialization period is over (up to 12 min).

  • Page 86: Air Tight Test And Vacuum Drying

    Test Operation ESIE09-08 Air Tight Test and Vacuum Drying Air tight test: Make sure to use nitrogen gas. Do this before powering the unit. Setup: R-410A Pressure reducing valve Nitrogen Siphon system Vacuum pomp Valve A Gas line stop valve Liquid line stop valve Stop valve service port Charge hose...

  • Page 87: Additional Refrigerant Charge

    ESIE09-08 Test Operation After evacuating the system for 2 hours, pressurize the system to 0.05 MPa (vacuum break) with nitrogen gas and evacuate the system again using the vacuum pump for 1 hour to –100.7 kPa (vacuum drying). If the system cannot be evacuated to –100.7 kPa within 2 hours, repeat the operation of vacuum break and vacuum drying.

  • Page 88: Important Information Regarding The Refrigerant Used

    Test Operation ESIE09-08 1.3.1 Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere. Refrigerant type: R-410A value: 1975 GWP = global warming potential Please fill in with indelible ink, the factory refrigerant charge of the product, the additional refrigerant amount charged in the field and the total refrigerant charge...
  • Page 89 ESIE09-08 Test Operation Procedure: Charging while the outdoor unit is at a standstill 1. Determine the weight of refrigerant to be charged additionally. Piping length is the one way length of gas or liquid piping whichever is the longest. It is not necessary to charge additionally if the piping length is under 10 m. If the piping length is over 10 m please determine the additional amount of refrigerant to be charged using the table below.

  • Page 90: Check Operation

    Test Operation ESIE09-08 1.3.3 Check Operation During check operation, mount front panel to avoid misjudging. Check operation is mandatory for normal unit operation. During this check operation different temperature should be read out. A procedure for space heating and domestic water heating should be followed. If forced operation should be started during a test operation, the test run will be aborted.

  • Page 91: Operation When Power Is Turned On

    ESIE09-08 Test Operation Operation when Power is Turned On 1.4.1 When Turning On Power First Time The unit cannot be run for up to 12 minutes to automatically set the master power and address (indoor-outdoor address, etc.). Status Outdoor unit Test lamp H2P &...

  • Page 92: Outdoor Unit Pc Board Layout

    Outdoor Unit PC Board Layout ESIE09-08 2. Outdoor Unit PC Board Layout ER(S/R)Q (011/014/016) AAY1 ER(S/R)Q (011/014/016) AAV1 Changeover between Test cooling and heating Page Demand Batch Batch noise Individual Error (master) (slave) DIP switches (DS1-1 and DS1-2) MODE RETURN TEST RESET Sets the address again when the wiring...

  • Page 93: Field Setting

    ESIE09-08 Field Setting 3. Field Setting Field Setting from remote control Individual function of indoor unit can be changed from the remote control. At the time of installation or after service inspection / repair, make the local setting in accordance with the following description.
  • Page 94 Field Setting ESIE09-08 Notes : 1. Changes made to a field setting are only stored when the pr button is pressed. Pressing the z button, without pressing the pr button before, will discard the change made. 2. When you save a field setting by pressing the pr button, the complete field setting group will be saved.
  • Page 95 ESIE09-08 Field Setting 3.1.2 Setting Contents and Code No. – EKHBRD – Indoor unit Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Remote control setup User permission level —...
  • Page 96 Field Setting ESIE09-08 Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Option setup Optional bottom plate heater installed — — (OFF) Not applicable. Do not change the default —...
  • Page 97 ESIE09-08 Field Setting Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Leaving water temperature limits Set point: leaving water maximum 37~80 °C temperature Set point: leaving water minimum 25~37 °C temperature...

  • Page 98: Detailed Explanation Of Setting Modes

    Field Setting ESIE09-08 3.1.3 Detailed Explanation of Setting Modes [0] Remote control setup First Second Default code code Setting name value Range Step Unit Remote control setup User permission level — Room temperature compensation value –5~5 °C Status: space heating schedule timer mode 1 (ON) —...
  • Page 99 ESIE09-08 Field Setting Notes : By default space heating based on temperature set point (method 1) is enabled, so only temperature shifts are possible (no ON/OFF instruction). The system keeps operating. Advantage of this method is that you can simply switch off the space heating operation by pushing the y button without disabling the automatic domestic hot water storage operation (e.g.
  • Page 100 Field Setting ESIE09-08 Method 2 Space heating based on ON/OFF instruction During operation When the schedule timer switches space heating OFF, the controller will be switched off (operation LED will stop working). Note that this has no influence on the domestic water heating. When pushing the y button The schedule timer for space heating will stop (when active at that moment) and will start again at the next scheduled ON function.
  • Page 101 ESIE09-08 Field Setting [1] Automatic storage timing for domestic water heating First Second Default code code Setting name value Range Step Unit Automatic storage timing for domestic water heating Status: night time storage 1 (ON) — — Night time storage start time 1:00 0:00~23:00 1:00...
  • Page 102 Field Setting ESIE09-08 [2] Automatic setback function First Second Default code code Setting name value Range Step Unit Automatic setback function Status: setback operation 1 (ON) — — Setback operation start time 23:00 0:00~23:00 1:00 hour Setback operation stop time 5:00 0:00~23:00 1:00...
  • Page 103 ESIE09-08 Field Setting [3] Weather dependent set point First Second Default code code Setting name value Range Step Unit Weather dependent set point Low ambient temperature (Lo_A) –10 –20~5 °C High ambient temperature (Hi_A) 10~20 °C Set point at low ambient temperature (Lo_Ti) 25~80 °C Set point at high ambient temperature (Hi_Ti)
  • Page 104 Field Setting ESIE09-08 [4] Disinfection function First Second Default code code Setting name value Range Step Unit Disinfection function Status: disinfection operation 1 (ON) — — Disinfection operation day selection Mon~Sun — — Disinfection operation start time 23:00 0:00~23:00 1:00 hour This mode will disinfect the domestic hot water tank by periodically heating the domestic water to a specific temperature.
  • Page 105 ESIE09-08 Field Setting [5] Automatic setback and disinfection set point First Second Default code code Setting name value Range Step Unit Automatic setback and disinfection set point Set point: disinfection operation temperature 60~75 °C Disinfection operation time duration 5~60 Leaving water setback temperature 0~10 °C Room setback temperature...
  • Page 106 Field Setting ESIE09-08 [6] Option setup First Second Default code code Setting name value Range Step Unit Option setup Domestic hot water tank installed — — (OFF) Optional room thermostat installed — — (OFF) Benefit kWh power supply mode — [6-00] Domestic hot water tank option If the domestic hot water tank is installed, its operation must be enabled by field setting.
  • Page 107 ESIE09-08 Field Setting [7] Option setup First Second Default code code Setting name value Range Step Unit Option setup Optional bottom plate heater installed — — (OFF) Multiple set point pattern 0 (A) — — Multiple set point 1 — —...
  • Page 108 Field Setting ESIE09-08 [8] Option setup First Second Default code code Setting name value Range Step Unit Option setup Remote controller temperature control 1 (ON) — — Status: automatic restart function 1 (ON) — — Status: low noise level — Status: freeze up prevention —...
  • Page 109 ESIE09-08 Field Setting [9] Automatic temperature compensation First Second Default code code Setting name value Range Step Unit Automatic temperature compensation Leaving water temperature compensation –5~5 °C value Domestic hot water tank compensation value –5~5 °C Thermo ON/OFF admission –5~5 °C If needed, it is possible to adjust some thermistor value of the unit by a correction value.
  • Page 110 (reference temperature) or domestic hot water temperature (pattern A). 3. Daikin does not offer any temperature reducing device (TRD). This system (multi set point control) only provides the possibility to use multi set point. It’s than also the installers responsibility to make sure that the whole system is operating well.
  • Page 111 ESIE09-08 Field Setting [B] Domestic hot water set points First Second Default code code Setting name value Range Step Unit Domestic hot water set points Set point: reheat minimum temperature 35~65 °C Set point: reheat maximum temperature 35~75 °C Status: weather dependent domestic water 1 (ON) —...
  • Page 112 Field Setting ESIE09-08 [b-02] Status: defines whether the weather dependent domestic water heating is turned ON (1) or OFF (0). If enabled, the storage set point will be set weather dependent. In case of a higher ambient temperature (e.g. during summertime), the cold supply water to the mixing tap (e.g.
  • Page 113 ESIE09-08 Field Setting [C] Leaving water temperature limits First Second Default code code Setting name value Range Step Unit Leaving water temperature limits Set point: leaving water maximum 37~80 °C temperature Set point: leaving water minimum 25~37 °C temperature To prevent misuse concerning leaving water temperatures, it is possible to limit the set points. [C-00] Set point: leaving water maximum temperature [C-01] Set point: leaving water minimum temperature Test Operation...
  • Page 114 Field Setting ESIE09-08 [D] Domestic water heating retention times First Second Default code code Setting name value Range Step Unit Domestic water heating retention times Set point: minimum time for domestic water 5~20 — heating Set point: maximum time for domestic water 10~60 —...
  • Page 115 ESIE09-08 Field Setting [E] Service mode First Second Default code code Setting name value Range Step Unit Service mode Vacuum mode — — Pump only operation — [E-00] Vacuum mode When recovering/vacuuming of the indoor unit is needed, field setting [E-00] should be activated.

  • Page 116: Field Setting From Outdoor Unit

    Field Setting ESIE09-08 Field Setting from Outdoor Unit Caution Capacity Setting after changing the main outdoor PC Board (A1P) to spare parts PC Board When you change the main PC Board (A1P) to spare parts PC Board, please carry out the following setting.
  • Page 117 ESIE09-08 Field Setting Caution Capacity Setting after changing the main indoor PC Board (A1P) to spare parts PC Board When you change the main indoor PC Board (A1P) to spare parts PC Board, please carry out the following setting. Please Attach the Capacity Setting Adapter corresponding to Capacity Class (ex. 112, 140, 160) in connector X23A. (See Below) Capacity Setting Adapter Capacity Class...
  • Page 118 Field Setting ESIE09-08 LED’S DURING initializing: first 12 minutes after power starting LED indication Wait until initializing period is over before pressing buttons. Setting by pushbutton switches The following settings are made by pushbutton switches on PC board. LED indication (Factory setting = normal operation) MODE RETURN...
  • Page 119 ESIE09-08 Field Setting (Set): Select mode with BS2 (SET button) in each selection step. Press BS1 (MODE button) for more than 5 sec. Setting mode 1 Press BS1(MODE button). to activate setting mode 2 (Initial condition) Monitor mode Setting mode 2 Press xx times BS2 button to select setting Check item selection (Set) Press BS3...
  • Page 120 Field Setting ESIE09-08 a. “Setting mode 1” This mode is used to set and check the following items. 1. Set items ············ In order to make IND selection in a batch of outdoor unit group, change the setting. • IND selection ·············································If this setting is changed, U7 error will appear, ONLY FACTORY SETTING IS ALLOWED.
  • Page 121 ESIE09-08 Field Setting b. “Setting mode 2” Setting item Description Refrigerant recovery / Push and hold the MODE (BS1) vacuuming mode Sets to refrigerant recovery or vacuuming mode. button for 5 seconds and set to setting of R-410A “Setting mode 2”. circuit An automatic pump down operation which will collect all Automatic pump...
  • Page 122 Field Setting ESIE09-08 Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave ∗ Factory set ∗ Refrigerant recovery / Refrigerant recovery / vacuuming: OFF vacuuming mode setting of R-410A Refrigerant recovery / circuit vacuuming: ON ∗...
  • Page 123 ESIE09-08 Field Setting c. Monitor mode LED display Setting item Data display Contents of malfunction (the Malfunction To enter the monitor mode, push the latest) code table MODE (BS1) button when in “Setting Contents of malfunction mode 1”. Refer to page (1 cycle before) 126, 127.
  • Page 124 Field Setting ESIE09-08 Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and confirm the data for each setting. Data such as addresses and number of units is expressed as binary numbers; the two ways of expressing are as follows: The No.

  • Page 125: Setting Of Refrigerant Recovery Mode

    ESIE09-08 Field Setting 3.2.1 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site, fully open the respective expansion valve of indoor and outdoor units All indoor and outdoor unit’s operation are prohibited. [Operation procedure] In “Setting Mode 2” with units in stop mode, set “B Refrigerant Recovery / Vacuuming mode” (setting 21) to ON.

  • Page 126: Setting Of Vacuuming Mode

    Field Setting ESIE09-08 3.2.2 Setting of Vacuuming Mode In order to perform vacuuming operation at site, fully open the expansion valves of indoor and outdoor units and turn on some solenoid valves. [Operating procedure] In “Setting Mode 2” with units in stop mode, set “B Refrigerant Recovery / Vacuuming mode” (setting 21) to ON.

  • Page 127: Part 7 - Troubleshooting

    ESIE09-08 Part 7 - Troubleshooting 1. Symptom-based Troubleshooting ............119 2. Troubleshooting by Remote Control ...........121 2.1 The INSPECTION / TEST Button............121 2.2 Self-diagnosis by Wired Remote Control ..........122 2.3 Operation of the Remote Controller’s Inspection / Test Operation Button ................123 2.4 Remote Control Service Mode .............124 2.5 Remote Controller Self-Diagnosis Function .........126 3.
  • Page 128 ESIE09-08 Pipe ......................171 3.31 “J9” Outdoor Unit: Malfunction of Thermistor (R4T) for Subcooling Heat Exchanger Gas Pipe ................172 3.32 “JA” Outdoor Unit: Malfunction of High Pressure Sensor.....173 3.33 “JA” Indoor Unit: Malfunction of High Pressure Sensor......174 3.34 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor .....175 3.35 “JC”...

  • Page 129: Symptom-Based Troubleshooting

    ESIE09-08 Symptom-based Troubleshooting 1. Symptom-based Troubleshooting Symptom Supposed Cause Countermeasure The system does not start operation at all. Blowout of fuse(s) Turn Off the power supply and then replace the fuse(s). Cutout of breaker(s) • If the knob of any breaker is in its OFF position, turn ON the power supply.
  • Page 130 Symptom-based Troubleshooting ESIE09-08 Symptom Supposed Cause Countermeasure The system <Indoor unit> These are operating sounds of Normal operation. produces Immediately after turning ON the electronic expansion valve of This sound becomes low after a sounds. the power supply, indoor unit the indoor unit.

  • Page 131: Troubleshooting By Remote Control

    ESIE09-08 Troubleshooting by Remote Control 2. Troubleshooting by Remote Control The INSPECTION / TEST Button The following modes can be selected by using the [Inspection/Test Operation] button on the remote control. Depress Inspection/Test Operation button for more than 4 seconds. Local Service data can be obtained.

  • Page 132: Self-Diagnosis By Wired Remote Control

    Troubleshooting by Remote Control ESIE09-08 Self-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 the inspection mode is entered.) The malfunction code enables you to tell what kind of malfunction caused operation to stop.

  • Page 133: Operation Of The Remote Controller's Inspection / Test Operation Button

    ESIE09-08 Troubleshooting by Remote Control Operation of the Remote Controller’s Inspection / Test Operation Button Unit Malfunction code Inspection Normal display (No display) Malfunction code blinks when a malfunction occurs. * Alternating malfunction code possible: indication for refrigerant type (IU/OU) Inspection/test Push the button.

  • Page 134: Remote Control Service Mode

    Troubleshooting by Remote Control ESIE09-08 Remote Control Service Mode How to Enter the Service Mode Field set Normal operation Service mode mode mode Push the button for 4 seconds or longer. Push the button for 4 seconds or longer. (VF020) Service Mode 1.
  • Page 135 ESIE09-08 Troubleshooting by Remote Control Mode Function Contents and operation method Remote control display example Malfunction Display malfunction hysteresis. hysteresis display The history No. can be changed with the Unit 1 button. Malfunction code 2-U4 Malfunction code Hystory No: 1 - 5 (VE007) 1: Latest Remark: The malfunction code can give also an extra subcode (alternating).

  • Page 136: Remote Controller Self-Diagnosis Function

    Troubleshooting by Remote Control ESIE09-08 Remote Controller Self-Diagnosis Function The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out. If a malfunction occurs during operation, the operation lamp, malfunction code and display of malfunctioning unit No. let you know the contents and location of the malfunction.
  • Page 137 ESIE09-08 Troubleshooting by Remote Control : ON : OFF c: Blink Malfunction Operation Malfunction contents Page code lamp Referred PC board defect, E PROM defect Pump error Malfunction of moving part of electronic expansion valve (Y1E) Malfunction of capacity setting Failure of transmission (between indoor unit PC board and fan PC board) Malfunction of thermistor (R3T) for R-410A liquid/indoor unit (loose connection, disconnection, short circuit, failure)

  • Page 138: Troubleshooting

    Troubleshooting by Remote Control ESIE09-08 Malfunction code indication by outdoor unit PC board <Monitor mode> Contents of malfunction Malfunction code To enter the monitor mode, push the MODE (BS1) button when in In-phase malfunction of DIII Net Detection of DIII Net “Setting mode 1”.
  • Page 139 ESIE09-08 Troubleshooting by Remote Control : ON : OFF c:Blink Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 Confirmation of malfunction 4 Malfunction code H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P ∗1 ∗1 ∗1...
  • Page 140 Troubleshooting by Remote Control ESIE09-08 <Monitor mode> Contents of malfunction Malfunction code To enter the monitor mode, push the Open phase/Power supply imbalance Imbalance of inverter power supply MODE (BS1) button when in voltage “Setting mode 1”. Faulty temperature sensor of inverter Faulty thermistor of inverter fin radiation fin Refrigerant shortage...
  • Page 141 ESIE09-08 Troubleshooting by Remote Control : ON : OFF c:Blink Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 Confirmation of malfunction 4 Malfunction code H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P ∗1 ∗1 Display of contents of...

  • Page 142: Troubleshooting By Indication On The Remote Controller

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3. Troubleshooting by Indication on the Remote Controller “A1” Indoor Unit: PC Board Defect Remote Control Display Subcode 0 Applicable All indoor unit models Models Method of Check data from E²PROM. Malfunction Detection Malfunction When data could not be correctly received from the E²PROM...

  • Page 143: A6" Indoor Unit: Pump Error (M1P) Or Other Water System Error

    ESIE09-08 Troubleshooting by Indication on the Remote Controller “A6 ” Indoor Unit: Pump Error (M1P) or Other Water System Error Remote Control Display Subcode 0 Applicable All indoor unit models Models Method of Detection by failure of signal for detecting number of turns to come from the pump motor. Detection by failure ref.

  • Page 144: A9" Indoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve (K1E) R-410A Circuit

    Troubleshooting by Indication on the Remote Controller ESIE09-08 “A9 ” Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (K1E) R-410A circuit Remote Control Display Subcode 0 Applicable All indoor and outdoor unit models Models Method of Malfunction Detection Malfunction Decision Conditions...
  • Page 145 ESIE09-08 Troubleshooting by Indication on the Remote Controller ∗1: Coil check method for the moving part of the electronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins. (Normal) Pin No. 1.

  • Page 146: Aj" Indoor Unit: Malfunction Of Capacity Determination Device

    Troubleshooting by Indication on the Remote Controller ESIE09-08 “AJ ” Indoor Unit: Malfunction of Capacity Determination Device Remote Control Display Subcode 0 Applicable All indoor unit models Models Method of Capacity is determined according to resistance of the capacity setting adapter and the memory inside the IC memory on the indoor unit PC board, and whether the value is normal or abnormal Malfunction is determined.

  • Page 147: C1" Indoor Unit: Failure Of Transmission (Between Indoor Unit Pc Board And Control Pc Board)

    ESIE09-08 Troubleshooting by Indication on the Remote Controller “C1” Indoor Unit: Failure of Transmission (Between Indoor unit PC Board and Control PC Board) Remote Control Display Subcode 0 Applicable All indoor unit models Models Method of Check the condition of transmission between indoor PC board (A1P) and PC board for control Malfunction (A3P) using computer.
  • Page 148 Troubleshooting by Indication on the Remote Controller ESIE09-08 Troubleshooting Be sure to turn off power switch before connecting or disconnecting connector, otherwise parts may be damaged. Caution the connector between indoor PC board (A1P) [X35A, X70A] and PC board for Connect the connector control (A3P) [X10A, X15A] accurately.

  • Page 149: C4" Indoor Unit: Malfunction Of Thermistor (R3T) Liquid Thermistor R-410A

    ESIE09-08 Troubleshooting by Indication on the Remote Controller “C4” Indoor Unit: Malfunction of Thermistor (R3T) Liquid Thermistor R-410A Remote Control Display Subcode 0 Applicable All indoor unit models Models Method of Malfunction detection is carried out by temperature detected by liquid thermistor. Malfunction Detection Malfunction...

  • Page 150: C5" Indoor Unit: Malfunction Of Tank Thermistor (R2T)

    Troubleshooting by Indication on the Remote Controller ESIE09-08 “C5 ” Indoor Unit: Malfunction of Tank Thermistor (R2T) Remote Control Display Subcode 0 Applicable All indoor unit models Models Method of Malfunction detection is carried out by temperature detected by tank thermistor. Malfunction Detection Malfunction...

  • Page 151: C9" Indoor Unit: Return Water Thermistor (R4T)

    ESIE09-08 Troubleshooting by Indication on the Remote Controller “C9 ” Indoor Unit: Return Water Thermistor (R4T) Remote Control Display Subcode 0 Applicable AII indoor unit models Models Method of Malfunction detection is carried out by temperature detected by return water temperature Malfunction thermistor.

  • Page 152: Ca" Indoor Unit: Leaving Water Thermistor Error (R5T)

    Troubleshooting by Indication on the Remote Controller ESIE09-08 “CA ” Indoor Unit: Leaving Water Thermistor Error (R5T) Remote Control Display Subcode 0 Applicable AII indoor unit models Models Method of Malfunction detection is carried out by temperature detected by leaving water temperature Malfunction thermistor.

  • Page 153: Cj" Indoor Unit: Malfunction Of Thermostat Sensor In Remote Controller

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.10 “CJ ” Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller Remote Control Display Subcode 0 Applicable AII indoor unit models Models Method of Malfunction detection is carried out by temperature detected by remote control air temperature thermistor.

  • Page 154: E1" Outdoor Unit: Pc Board Defect

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.11 “E1 ” Outdoor Unit: PC Board Defect Remote Control Display Applicable ER*Q 011~016* Models Related to: R-410A compressor Subcode 3: see next page Method of Check data from E²PROM Malfunction Detection Malfunction When data could not be correctly received from the E²PROM Decision...

  • Page 155: E1" Indoor Unit: Pc Board Defect

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.12 “E1 ” Indoor Unit: PC Board Defect Remote Control Display Subcode 3 Applicable All indoor units Models Related to: R-134a compressor Method of Check data from E²PROM Malfunction Detection Malfunction When data could not be correctly received from the E²PROM Decision E²PROM: Type of nonvolatile memory.

  • Page 156: E3" Outdoor Unit: Actuation Of High Pressure Switch

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.13 “E3 ” Outdoor Unit: Actuation of High Pressure Switch Remote Control Display Subcode 1 Applicable ER*Q 011~016* Models Method of Abnormality is detected when the contact of the high pressure protection switch opens. Malfunction Detection Malfunction...
  • Page 157 ESIE09-08 Troubleshooting by Indication on the Remote Controller Troubleshooting Be sure to turn off power switch before connecting or disconnecting connector, Caution otherwise parts may be damaged. Check for the points shown below. 1 Is the stop valve open? 2 Is the HPS connector properly connected to the main PC board? 3 Does the high pressure switch have continuity? Are the three...

  • Page 158: E3" Indoor Unit: Actuation Of High Pressure Switch

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.14 “E3 ” Indoor Unit: Actuation of High Pressure Switch Remote Control Display Subcode 12 Applicable All indoor units Models Method of Abnormality is detected when the contact of the high pressure protection switch opens. Malfunction Detection Malfunction...
  • Page 159 ESIE09-08 Troubleshooting by Indication on the Remote Controller Be sure to turn off power switch before connecting or disconnecting connector, Caution otherwise parts may be damaged. Check for the points shown below. 1 Is the stop valve open? 2 Is the HPS connector properly connected to the indoor PC board? 3 Does the high pressure switch have continuity? Are the three...
  • Page 160 Troubleshooting by Indication on the Remote Controller ESIE09-08 *1: Make a comparison between the voltage of the pressure sensor (*4) and that read by the pressure gauge.(As to the voltage of the pressure sensor, make measurement of voltage at the connector, and then convert it to pressure.) Make a comparison between the high pressure value checked with the Service Tool and the voltage of the pressure sensor (see *1) *3: Make measurement of voltage of the pressure sensor.

  • Page 161: E4" Outdoor Unit: Actuation Of Low Pressure Sensor

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.15 “E4 ” Outdoor Unit: Actuation of Low Pressure Sensor Remote Control Display Applicable ER*Q 011~016* Models Method of Abnormality is detected by the pressure value with the low pressure sensor. Malfunction Detection Malfunction Error is generated when the low pressure is dropped under specific pressure.
  • Page 162 Troubleshooting by Indication on the Remote Controller ESIE09-08 Troubleshooting Caution Is the stop valve Open the stop valve. open? 1 Mount a pressure gauge on the low-pressure service port. 2 Connect the Service Tool 3 Reset the operation using the remote control, and then restart the operation.

  • Page 163: E4" Indoor Unit: Actuation Of Low Pressure Sensor

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.16 “E4 ” Indoor Unit: Actuation of Low Pressure Sensor Remote Control Display Subcode 6 Applicable All indoor units Models Method of Abnormality is detected by the pressure value with the low pressure sensor. Malfunction Detection Malfunction...
  • Page 164 Troubleshooting by Indication on the Remote Controller ESIE09-08 Be sure to turn off power switch before connecting or disconnecting connector, otherwise parts may be damaged. Caution Is the stop valve Open the stop valve. open? 1 Mount a pressure gauge on the low-pressure service port. 2 Connect the Service Tool.

  • Page 165: E5" Outdoor Unit: Inverter Compressor Motor Lock

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.17 “E5 ” Outdoor Unit: Inverter Compressor Motor Lock Remote Control Display Applicable ER*Q 011~016* Models Method of Inverter PC board takes the position signal from UVW line connected between the inverter and compressor, and the malfunction is detected when any abnormality is observed in the phase- Malfunction current waveform.

  • Page 166: E5" Indoor Unit: Inverter Compressor Motor Lock

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.18 “E5 ” Indoor Unit: Inverter Compressor Motor Lock Remote Control Display Subcode 6 Applicable All indoor units Models Method of Inverter PC board takes the position signal from UVW line connected between the inverter and Malfunction compressor, and the malfunction is detected when any abnormality is observed in the phase- current waveform.

  • Page 167: E7" Malfunction Of Outdoor Unit Fan Motor

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.19 “E7” Malfunction of Outdoor Unit Fan Motor Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction of fan motor system is detected according to the fan speed detected by hall IC when the fan motor runs.
  • Page 168 Troubleshooting by Indication on the Remote Controller ESIE09-08 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, or Caution parts damage may be occurred. the voltage between L1 and N on the power supply terminal board X1M fallen Correct the power supply within the range of 220 to voltage.

  • Page 169: E9" Outdoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.20 “E9 ” Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve Remote Control Display Applicable ER*Q 011~016* Models Method of Check disconnection of connector Check continuity of expansion valve coil Malfunction Detection Malfunction...
  • Page 170 Troubleshooting by Indication on the Remote Controller ESIE09-08 ∗1: Coil check method for the moving part of the electronic expansion valve Disconnect the electronic expansion valve from the PC board and check the continuity between the connector pins. (Orange) 1 (Red) 2 (Yellow) 3 (Black) 4...

  • Page 171: E9" Indoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve (K2E) R-134A Circuit

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.21 “E9 ” Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (K2E) R-134a circuit Remote Control Display Subcode 17 Applicable All indoor units Models Expansion valve on R-134a Method of Check disconnection of connector Check continuity of expansion valve coil Malfunction...
  • Page 172 Troubleshooting by Indication on the Remote Controller ESIE09-08 ∗1: Coil check method for the moving part of the electronic expansion valve Disconnect the electronic expansion valve from the PC board and check the continuity between the connector pins. (White) 1 (Yellow) 2 (Orange) 3 (Blue) 4...

  • Page 173: F3" Outdoor Unit: Abnormal Discharge Pipe Temperature

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.22 “F3 ” Outdoor Unit: Abnormal Discharge Pipe Temperature Remote Control Display Applicable ER*Q 011~016* Models Method of Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor. Malfunction Detection Malfunction...

  • Page 174: F3" Indoor Unit: Abnormal Discharge Pipe Temperature

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.23 “F3 ” Indoor Unit: Abnormal Discharge Pipe Temperature Remote Control Display Subcode 19 Applicable All indoor units Models Method of Abnormality is detected according to the temperature detected by the discharge pipe Malfunction temperature sensor.

  • Page 175: H9" Outdoor Unit: Malfunction Of Thermistor (R1T) For Outdoor Air

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.24 “H9 ” Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from the temperature detected by the outdoor air thermistor. Malfunction Detection Malfunction...

  • Page 176: J3" Outdoor Unit: Malfunction Of Discharge Pipe Thermistor (R2T)

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.25 “J3 ” Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R2T) Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from the temperature detected by discharge pipe temperature thermistor. Malfunction Detection Malfunction...

  • Page 177: J3" Indoor Unit: Malfunction Of Discharge Pipe Thermistor (R6T)

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.26 “J3 ” Indoor Unit: Malfunction of Discharge Pipe Thermistor (R6T) Remote Control Display Subcode 46 Applicable All indoor units Models Method of Malfunction is detected from the temperature detected by discharge pipe temperature thermistor.

  • Page 178: J5" Outdoor Unit: Malfunction Of Thermistor (R3T, R5T) For Suction Pipe 1, 2

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.27 “J5 ” Outdoor Unit: Malfunction of Thermistor (R3T, R5T) for Suction Pipe 1, 2 Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from the temperature detected by the thermistor for suction pipe 1, 2. Malfunction Detection Malfunction...

  • Page 179: J5" Indoor Unit: Malfunction Of Thermistor (R7T) For Liquid R-134A

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.28 “J5 ” Indoor Unit: Malfunction of Thermistor (R7T) for Liquid R-134a Remote Control Display Subcode 11 Applicable All indoor units Models Method of Malfunction is detected from the temperature detected by the thermistor for liquid pipe. Malfunction Detection Malfunction...

  • Page 180: J6" Outdoor Unit: Malfunction Of Thermistor (R6T) For Outdoor Unit Heat Exchanger

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.29 “J6 ” Outdoor Unit: Malfunction of Thermistor (R6T) for Outdoor Unit Heat Exchanger Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from the temperature detected by the heat exchanger thermistor. Malfunction Detection Malfunction...

  • Page 181: J7" Outdoor Unit: Malfunction Of Thermistor (R7T) For Outdoor Unit Liquid Pipe

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.30 “J7” Outdoor Unit: Malfunction of Thermistor (R7T) for Outdoor Unit Liquid Pipe Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from the temperature detected by the liquid pipe thermistor. Malfunction Detection Malfunction...

  • Page 182: J9" Outdoor Unit: Malfunction Of Thermistor (R4T) For Subcooling Heat Exchanger Gas Pipe

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.31 “J9 ” Outdoor Unit: Malfunction of Thermistor (R4T) for Subcooling Heat Exchanger Gas Pipe Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected according to the temperature detected by subcooling heat exchanger gas pipe thermistor.

  • Page 183: Ja" Outdoor Unit: Malfunction Of High Pressure Sensor

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.32 “JA ” Outdoor Unit: Malfunction of High Pressure Sensor Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from the pressure detected by the high pressure sensor. Malfunction Detection Malfunction When the high pressure sensor is short circuit or open circuit.

  • Page 184: Ja" Indoor Unit: Malfunction Of High Pressure Sensor

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.33 “JA ” Indoor Unit: Malfunction of High Pressure Sensor Remote Control Display Subcode 16 Applicable All indoor units Models Method of Malfunction is detected from the pressure detected by the high pressure sensor. Malfunction Detection Malfunction...

  • Page 185: Jc" Outdoor Unit: Malfunction Of Low Pressure Sensor

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.34 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from pressure detected by low pressure sensor. Malfunction Detection Malfunction When the low pressure sensor is short circuit or open circuit. Decision Conditions Supposed...

  • Page 186: Jc" Indoor Unit: Malfunction Of Low Pressure Sensor

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.35 “JC” Indoor Unit: Malfunction of Low Pressure Sensor Remote Control Display Subcode 16 Applicable All indoor units Models Method of Malfunction is detected from pressure detected by low pressure sensor. Malfunction Detection Malfunction When the low pressure sensor is short circuit or open circuit.

  • Page 187: L1" Outdoor Unit: Malfunction Of Pc Board

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.36 “L1 ” Outdoor Unit: Malfunction of PC Board Remote Control Display Applicable ER*Q 011~016* Models Method of Detect malfunctions by current value during waveform output before compressor startup. Detect malfunctions by current sensor value during synchronized operation at the time of Malfunction startup.

  • Page 188: L1" Indoor Unit: Malfunction Of Pc Board

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.37 “L1 ” Indoor Unit: Malfunction of PC Board Remote Control Display Subcode 30 Applicable All indoor units Models Method of Detect malfunctions by current value during waveform output before compressor startup. Malfunction Detect malfunctions by current sensor value during synchronized operation at the time of startup.

  • Page 189: L4" Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.38 “L4 ” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Remote Control Display Applicable ER*Q 011~016* Models Method of Fin temperature is detected by the thermistor of the radiation fin. Malfunction Detection Malfunction...

  • Page 190: L4" Indoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise (R8T)

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.39 “L4 ” Indoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise (R8T) Remote Control Display Subcode 8 Applicable All indoor units Models Method of Fin temperature is detected by the thermistor of the radiation fin. If fin temperature is too high, the compressor will slow down (capacity shortage).

  • Page 191: L5" Outdoor Unit: Inverter Compressor Abnormal - R-410A

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.40 “L5 ” Outdoor Unit: Inverter Compressor Abnormal - R-410A Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from current flowing in the power transistor. Malfunction Detection Malfunction When an excessive current flows in the power transistor.

  • Page 192: L5" Indoor Unit: Inverter Compressor Abnormal - R-134A

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.41 “L5 ” Indoor Unit: Inverter Compressor Abnormal - R-134a Remote Control Display Subcode 13 Applicable All indoor units Models Method of Malfunction is detected from current flowing in the power transistor. Malfunction Detection Malfunction...

  • Page 193: L8" Outdoor Unit: Inverter Current Abnormal

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.42 “L8 ” Outdoor Unit: Inverter Current Abnormal Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected by current flowing in the power transistor. Malfunction Detection Malfunction When overload in the compressor is detected. Decision Conditions Supposed...

  • Page 194: L8" Indoor Unit: Inverter Current Abnormal

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.43 “L8 ” Indoor Unit: Inverter Current Abnormal Remote Control Display Subcode 10 Applicable All indoor units Models Method of Malfunction is detected by current flowing in the power transistor. Malfunction Detection Malfunction When overload in the compressor is detected.

  • Page 195: L9" Outdoor Unit: Inverter Start Up Error

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.44 “L9 ” Outdoor Unit: Inverter Start up Error Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected from current flowing in the power transistor. Malfunction Detection Malfunction When overload in the compressor is detected during startup Decision Conditions Supposed...

  • Page 196: L9" Indoor Unit: Inverter Start Up Error

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.45 “L9 ” Indoor Unit: Inverter Start up Error Remote Control Display Subcode 9 Applicable All indoor units Models Method of Malfunction is detected from current flowing in the power transistor. Malfunction Detection Malfunction When overload in the compressor is detected during startup...

  • Page 197: Lc" Outdoor Unit: Malfunction Of Transmission Between Inverter And Control Pc Board

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.46 “LC ” Outdoor Unit: Malfunction of Transmission between Inverter and Control PC Board Remote Control Display Applicable ER*Q 011~016* Models Method of Check the communication state between inverter PC board and control PC board by micro- computer.

  • Page 198: Lc " Indoor Unit: Malfunction Of Transmission Between Inverter And Control Pc Board

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.47 “LC ” Indoor Unit: Malfunction of Transmission between Inverter and Control PC Board Remote Control Display Subcode 29 Applicable All indoor units Models Method of Check the communication state between inverter PC board and control PC board by micro- computer.

  • Page 199: Lh" Indoor Unit: Converter Error

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.48 “LH ” Indoor Unit: Converter Error Remote Control Display Subcode 2 Applicable All indoor units Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Inverter PC board problem Causes Troubleshooting Caution: Be sure to turn off the power switch before connecting or disconnecting connector, otherwise parts may be damaged.

  • Page 200: P1" Outdoor Unit: High Voltage Of Capacitor In Main Inverter Circuit

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.49 “P1” Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit Remote Control Display Applicable ER*Q 011~016* Models Method of Malfunction is detected according to the voltage waveform of main circuit capacitor built in the inverter.

  • Page 201: P1" Indoor Unit: High Voltage Of Capacitor In Main Inverter Circuit

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.50 “P1” Indoor Unit: High Voltage of Capacitor in Main Inverter Circuit Remote Control Display Subcode 6 Applicable All indoor units Models Method of Malfunction is detected according to the voltage waveform of main circuit capacitor built in the inverter.

  • Page 202: Pj" Indoor Unit: Faulty Combination Of Pcb

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.51 “PJ” Indoor Unit: Faulty Combination of PCB Remote Control Display Subcode 11 Applicable All indoor units Models Method of This malfunction is detected according to communications with the inverter. Malfunction Detection Malfunction Make judgment according to communication data on whether or not the type of the inverter PCB Decision...

  • Page 203: U0 " Low Pressure Drop Due To Refrigerant Shortage Or Electronic Expansion Valve Failure

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.52 “U0 ” Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure Remote Control Display Applicable ER*Q 011~016* Models Method of Short of gas malfunction is detected by discharge pipe temperature thermistor and low pressure saturation temperature.
  • Page 204 Troubleshooting by Indication on the Remote Controller ESIE09-08 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, or Caution parts damage may be occurred. pressure is 0.25 Cooling MPa or less. Out of gas, closing of stop valve or refrigerant system is clogged.

  • Page 205: U2" Power Supply Insufficient Or Instantaneous Failure

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.53 “U2 ” Power Supply Insufficient or Instantaneous Failure Remote Control Display Applicable ER*Q 011~016* Models Method of Detection of voltage of main circuit capacitor built in the inverter and power supply voltage. Malfunction Detection Malfunction...
  • Page 206 Troubleshooting by Indication on the Remote Controller ESIE09-08 Troubleshooting Be sure to turn off power switch before connecting or disconnecting connector, otherwise parts may be damaged. Caution Have the power supply voltages between L1 and L2, L2 and L3, and L1 and L3 fallen within Correct the power supply the range of 380 to 415V±10% (50 Hz) and between L and N within the range...

  • Page 207: U2" Power Supply Insufficient Or Instantaneous Failure

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.54 “U2 ” Power Supply Insufficient or Instantaneous Failure Remote Control Display Subcode 20: high/low voltage problem Subcode 21: converter problem Applicable All indoor units Models Method of Detection of voltage of main circuit capacitor built in the inverter and power supply voltage. Malfunction Detection Malfunction...
  • Page 208 Troubleshooting by Indication on the Remote Controller ESIE09-08 Be sure to turn off power switch before connecting or disconnecting connector, Caution otherwise parts may be damaged. Have the power supply voltages between L1 and L2, L2 and L3, and L1 and L3 fallen within Correct the power supply the range of 380 to 415V±10% (50 Hz) and voltages.

  • Page 209: U4" Malfunction Of Transmission Between Indoor Unit And Outdoor Unit

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.55 “U4 ” Malfunction of Transmission between Indoor Unit and Outdoor Unit Remote Control Display subcode 0 Applicable AII indoor unit models Models ER*Q 011~016* Method of Microcomputer checks if transmission between indoor and outdoor unit is normal. Malfunction Detection Malfunction...
  • Page 210 Troubleshooting by Indication on the Remote Controller ESIE09-08 Troubleshooting Be sure to turn off power switch before connecting or disconnecting Caution connector, otherwise parts may be damaged. the indoor or outdoor unit PC board been replaced, or has the indoor - outdoor unit transmission wiring been modified?

  • Page 211: U4" Malfunction Of Transmission Indoor Unit

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.56 “U4 ” Malfunction of Transmission Indoor Unit Remote Control Display Subcode 4 Applicable AII indoor unit models Models Method of Microcomputer checks QA communication of indoor unit. Malfunction Detection Malfunction When transmission is not carried out normally for a certain amount of time Decision Conditions ø...

  • Page 212: U5" Malfunction Of Transmission Between Remote Control And Indoor Unit

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.57 “U5 ” Malfunction of Transmission between Remote Control and Indoor Unit Remote Control Display Subcode 0 Applicable AII indoor unit models Models Method of In case of controlling with 2-remote control, check the system using microcomputer is signal transmission between indoor unit and remote (correct if faulty) control (main and sub) is normal.

  • Page 213: U7" Indoor Unit: Malfunction Of Transmission Outdoor Unit

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.58 “U7” Indoor Unit: Malfunction of Transmission Outdoor Unit Remote Control Display Subcode 2 Applicable ER*Q 011~016* Models Method of Microcomputer checks the transmission of outdoor unit. Malfunction Detection Malfunction When transmission is not carried out normally for a certain amount of time Decision Conditions Supposed...

  • Page 214: U8" Malfunction Of Transmission Between Main And Sub Remote Controls

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.59 “U8 ” Malfunction of Transmission between Main and Sub Remote Controls Remote Control Display Applicable AII indoor unit models Models Method of In case of controlling with 2-remote control, check the system using microcomputer if signal transmission between indoor unit and remote control (main and sub) is normal.

  • Page 215: Ua" Communication Error Between Outdoor Unit And Indoor Unit

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.60 “UA ” Communication Error between Outdoor Unit and Indoor Unit Remote Control Display subcode 13 subcode 39 Applicable AII indoor unit models Models All outdoor unit models Method of Malfunction Detection Malfunction Decision Conditions...

  • Page 216: Uf" System Is Not Set Yet

    Troubleshooting by Indication on the Remote Controller ESIE09-08 3.61 “UF” System is not Set yet Remote Control Display subcode 6: QA wiring problem. subcode 10: Transmission problem with outdoor unit. Applicable All models of indoor units Models All models of outdoor units Method of Malfunction Detection...

  • Page 217: Uh" Malfunction Of System, Refrigerant System Address Undefined

    ESIE09-08 Troubleshooting by Indication on the Remote Controller 3.62 “UH ” Malfunction of System, Refrigerant System Address Undefined Remote Control Display subcode 0 Applicable AII indoor unit models Models All outdoor unit models Method of Malfunction Detection Malfunction Decision Conditions Supposed Improper connection of transmission wiring between outdoor unit and outdoor unit outside Causes...
  • Page 218 Troubleshooting by Indication on the Remote Controller ESIE09-08 [CHECK 1] Check for causes of rise in high pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the faulty points. Stop valve closed ←Check to be sure the stop valve is open. Local High pipe pressure...
  • Page 219 ESIE09-08 Troubleshooting by Indication on the Remote Controller [CHECK 2] Check for causes of drop in low pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the faulty points. Abnormally low low-pressure [Heating] (Low evaporating (See *1.) temperature) Faulty electronic expansion valve control...
  • Page 220 Troubleshooting by Indication on the Remote Controller ESIE09-08 [CHECK 3] Check for Fan Motor Connector (1) Turn the power supply off. (2) With the fan motor connector on motor side disconnected, measure the resistance between each pin, then make sure that the resistance is more than the value mentioned in the following table.

  • Page 221: Part 8 - Appendix

    ESIE09-08 Part 8 - Appendix 1. Piping Diagrams .................210 1.1 Outdoor Unit ..................210 1.2 Indoor Unit ...................212 1.3 Switch Box Layout ................214 2. Wiring Diagrams .................216 2.1 Outdoor Unit ..................216 2.2 Field Wiring Connection Diagram ............220 2.3 Indoor Unit ...................221 3.

  • Page 222: Piping Diagrams

    Piping Diagrams ESIE09-08 1. Piping Diagrams Outdoor Unit ERRQ + ERSQ 011/014/016 AAV1 Appendix...
  • Page 223 ESIE09-08 Piping Diagrams ERRQ + ERSQ 011/014/016 AAY1 Appendix...

  • Page 224: Indoor Unit

    Piping Diagrams ESIE09-08 Indoor Unit EKHBRD 011~016 AAV1/Y1 Appendix...
  • Page 225 ESIE09-08 Piping Diagrams Legend Part number Description Liquid thermistor R-410A Returning water thermistor Leaving water thermistor Discharge thermistor Liquid thermistor R-134a S1PH High pressure switch B1PL Low pressure sensor B1PH High pressure sensor Electronic expansion valve R-410A Electronic expansion valve R-134a E1HC Crankcase heater Four way valve...

  • Page 226: Switch Box Layout

    Piping Diagrams ESIE09-08 Switch Box Layout EKHBR 011/014/016 AAV1 Fieldwiring to X1M Fieldwiring to X2M, A7P Fieldwiring to X3M, A8P Legend Part number Description Main PCB User interface PCB - remote controller Control PCB Inverter PCB QA PCB Filter PCB Digital I/O PCB Demand PCB A10P...
  • Page 227 ESIE09-08 Piping Diagrams EKHBR 011/014/016 AAY1 Fieldwiring to X1M Fieldwiring to X2M, A7P Fieldwiring to X3M, A8P Legend Part number Description Main PCB User interface PCB - remote controller Control PCB Inverter control PCB Inverter PCB Filter PCB Digital I/O PCB Demand PCB A10P Thermostat PCB...

  • Page 228: Wiring Diagrams

    Wiring Diagrams ESIE09-08 2. Wiring Diagrams Outdoor Unit ERRQ + ERSQ 011/014/016 V1 Appendix...
  • Page 229 ESIE09-08 Wiring Diagrams Legend Printed circuit board (main) Q1DI Field earth leakage breaker (300 mA) Printed circuit board (service) Resistor Printed circuit board (noise filter) Resistor BS1~BS5 Push button switch (mode, set, return, test, Thermistor (air) reset) C1~C4 Capacitor Thermistor (discharge) Dip switch Thermistor (suction 1) E1HC...
  • Page 230 Wiring Diagrams ESIE09-08 ERRQ + ERSQ 011/014/016 Y1 Appendix...
  • Page 231 ESIE09-08 Wiring Diagrams Legend Printed circuit board Motor (compressor) Printed circuit board (inv.) Motor (upper fan) Printed circuit board (noise filter) Motor (lower fan) BS1~BS5 Push button switch Power supply mode, set, return, test, reset R1, R2 Resistor C1-C3 Capacitor Thermistor (air) Dip switch Thermistor (M1C discharge)

  • Page 232: Field Wiring Connection Diagram

    Wiring Diagrams ESIE09-08 Field Wiring Connection Diagram ERRQ + ERSQ 011/014/016 A(V1)/(Y1) in combination with EKHBRD* Appendix...

  • Page 233: Indoor Unit

    ESIE09-08 Wiring Diagrams Indoor Unit EKHBR 011/014/016 AAV1 Appendix...
  • Page 234 Wiring Diagrams ESIE09-08 Appendix...
  • Page 235 ESIE09-08 Wiring Diagrams Legend Part number Description B1PH High pressure sensor B1PL Low pressure sensor BS1 - BS4 (A9P) Push button Capacitor C2 - C3 Filter capacitor C1 - C3 (A4P) PCB capacitor DS1 (A*P) Dipswitch Bottom plate heater (only in combination with ERRQ* outdoor unit or ERSQ* outdoor unit with option EKBPHTH16A) E1HC Crankcase heater...
  • Page 236 Wiring Diagrams ESIE09-08 Z1F - Z5F (A*P) Noise filter *: included in option kit #: field supplied Part number Description Main PCB User interface PCB Control PCB Inverter PCB QA PCB Filter PCB Digital I/O PCB Demand PCB Service PCB A10P Thermostat PCB A11P...
  • Page 237 ESIE09-08 Wiring Diagrams EKHBR 011/014/016 AAY1 Appendix...
  • Page 238 Wiring Diagrams ESIE09-08 Appendix...
  • Page 239 ESIE09-08 Wiring Diagrams Legend Part number Description B1PH High pressure sensor B1PL Low pressure sensor BS1 - BS4 (A4P) Push button C1 - C2 Filter capacitor C1 - C2 (A5P) PCB capacitor DS1 (A*P) Dipswitch Bottom plate heater (only in combination with ERRQ* outdoor unit or ERSQ* outdoor unit with option EKBPHTH16A) E1HC Crankcase heater...
  • Page 240 Wiring Diagrams ESIE09-08 *: included in option kit #: field supplied Part number Description Main PCB User interface PCB Control PCB Inverter control PCB Inverter PCB Filter PCB Digital I/O PCB (optional) Demand PCB (optional) A10P Thermostat PCB (optional) A11P Receiver PCB (optional) R1H (EKRTR) Humidity sensor (optional)

  • Page 241: Thermistor Resistance / Temperature Characteristics

    ESIE09-08 Thermistor Resistance / Temperature Characteristics 3. Thermistor Resistance / Temperature Characteristics Indoor unit For air suction For liquid pipe For gas pipe Outdoor unit For outdoor air Outdoor unit for fin thermistor For suction pipe 1 For heat exchanger R4T, R6T For suction pipe 2 For Subcooling heat exchanger outlet R6T, R4T...
  • Page 242 Thermistor Resistance / Temperature Characteristics ESIE09-08 Outdoor Unit Thermistors for Discharge Pipe (R2T) (kΩ) T°C T°C T°C 640.44 624.65 72.32 70.96 13.35 13.15 609.31 594.43 69.64 68.34 12.95 12.76 579.96 565.78 67.06 65.82 12.57 12.38 552.00 538.63 64.60 63.41 12.20 12.01 525.63 512.97...
  • Page 243 ESIE09-08 Thermistor Resistance / Temperature Characteristics Tank Thermistor NTC-curve (R2T) T°C Resistance value 197.81 kΩ 65.84 kΩ 20 kΩ Appendix...

  • Page 244: Pressure Sensor

    Pressure Sensor ESIE09-08 4. Pressure Sensor = 1.38V-0.69 : Detected Pressure [High Side] MPa = 0.57V-0.28 : Detected Pressure [Low Side] MPa : High pressure (MPa) : Output Voltage [High Side] V Detected Pressure Detected Pressure : Low pressure (MPa) : Output Voltage [Low Side] V V : Voltage (V) High Pressure (P...

  • Page 245: Method Of Replacing The Inverter's Power Transistors Modules

    ESIE09-08 Method of Replacing the Inverter’s Power Transistors Modules 5. Method of Replacing the Inverter’s Power Transistors Modules Warning: CAPACITOR SHOCK HAZARD. The capacitors (top surfaces) can hold up to 220V. Use correct precautions when servicing. Checking failures in power semiconductors mounted on inverter PC board Check the power semiconductors mounted on the inverter PC board by the use of a multiple tester.
  • Page 246 Method of Replacing the Inverter’s Power Transistors Modules ESIE09-08 Inverter PC board C– Appendix...
  • Page 247 ESIE09-08 Method of Replacing the Inverter’s Power Transistors Modules Power module checking When using the digital type of multiple tester, make measurement in diode check mode. Tester terminal Criterion Remark Not less than 0.3V It may take time to (including ∞ )* determine the voltage due to capacitor charge or else.
  • Page 248 Method of Replacing the Inverter’s Power Transistors Modules ESIE09-08 Appendix...

  • Page 249: Part 9 - Precautions For New Refrigerant (R-410A)

    ESIE09-08 Part 9 - Precautions for New Refrigerant (R-410A) 1. Precautions for New Refrigerant (R-410A) .........242 1.1 Outline ....................242 1.2 Refrigerant Cylinders................244 1.3 Service Tools..................245 Precautions for New Refrigerant (R-410A)

  • Page 250: Precautions For New Refrigerant (R-410A)

    Precautions for New Refrigerant (R-410A) ESIE09-08 1. Precautions for New Refrigerant (R-410A) Outline 1.1.1 About Refrigerant R-410A Characteristics of new refrigerant, R-410A 1. Performance Almost the same performance as R-22 and R-407C 2. Pressure Working pressure is approx. 1.4 times more than R-22 and R-407C. 3.
  • Page 251 ESIE09-08 Precautions for New Refrigerant (R-410A) Thermodynamic characteristic of R-410A Temperature Steam pressure Density Specific heat at constant Specific enthalpy Specific entropy (°C) (kPa) (kg/m pressure (kJ/kgK) (kJ/kg) (kJ/KgK) Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Precautions for New Refrigerant (R-410A)

  • Page 252: Refrigerant Cylinders

    Precautions for New Refrigerant (R-410A) ESIE09-08 Refrigerant Cylinders Cylinder specifications • The cylinder is painted refrigerant color (pink). • The cylinder valve is equipped with a siphon tube. Cylinder Refrigerant can be charged in liquid state with cylinder in upright position. Caution: Do not lay cylinder on its side during charging, since it cause refrigerant in gas state to enter the system.

  • Page 253: Service Tools

    ESIE09-08 Precautions for New Refrigerant (R-410A) Service Tools R-410A is used under higher working pressure, compared to previous refrigerants (R-22,R-407C). Furthermore, the refrigerating machine oil has been changed from Suniso oil to Ether oil, and if oil mixing is occurred, sludge results in the refrigerants and causes other problems.
  • Page 254 Precautions for New Refrigerant (R-410A) ESIE09-08 1. Flaring tool Flare gauge Specifications • Dimension A Unit:mm Tube O.D. -0.4 Nominal size Class-2 (R-410A) Class-1 (Conventional) 6.35 9.52 13.2 13.0 12.70 16.6 16.2 15.88 19.7 19.4 19.05 24.0 23.3 Differences • Change of dimension A Dimension A For class-1: R-407C For class-2: R-410A...
  • Page 255 ESIE09-08 Precautions for New Refrigerant (R-410A) 2. Torque wrench Specifications • Dimension B Unit:mm Nominal size Class-1 Class-2 Previous No change in tightening torque No change in pipes of other sizes Differences • Change of dimension B Only 1/2", 5/8" are extended For class-1: R-407C For class-2: R-410A Dimension B...
  • Page 256 Precautions for New Refrigerant (R-410A) ESIE09-08 4. Leak tester Specifications • Hydrogen detecting type, etc. • Applicable refrigerants R-410A, R-407C, R-404A, R-507A, R-134a, etc. Differences • Previous testers detected chlorine. Since HFCs do not contain chlorine, new tester detects hydrogen. 5.
  • Page 257 ESIE09-08 Precautions for New Refrigerant (R-410A) • Temperature scale indicates the relationship between pressure and temperature in gas saturated state. Differences • Change in pressure • Change in service port diameter 7. Charge hose for R-410A (Hose with ball valve) Specifications •...
  • Page 258 Precautions for New Refrigerant (R-410A) ESIE09-08 9. Weigher for refrigerant charge Specifications • High accuracy TA101A (for 10-kg cylinder) = ± 2g TA101B (for 20-kg cylinder) = ± 5g • Equipped with pressure-resistant sight glass to check liquid refrigerant charging. •...

  • Page 259: Index

    ESIE09-08 Index 188, .............. 189 A1 .................130 A6 .................131 Indoor Unit ............... 8 A9 .................132 Inverter Compressor Abnormal ....179, 180 Abnormal Discharge Pipe Temperature ..161, 162 Inverter Compressor Motor Lock ....153, 154 About Refrigerant R-410A ........238 Inverter Current Abnormal ......181, 182 Actuation of High Pressure Switch ....144, 146 Inverter Protection Control ........
  • Page 260 ESIE09-08 1, 2 ..............166 Malfunction of Thermistor (R4T) ......170 Tank Thermistor ..........231 Malfunction of Thermistor (R6T) ......168 Test Operation Malfunction of Thermistor (R7T) for Outdoor Unit Procedure and Outline ........72 Liquid Pipe ............169 Thermistor Resistance / Temperature Characteristics Malfunction of Thermostat Sensor in Remote Control ..............

  • Page 261: Drawings & Flow Charts

    ESIE09-08 Drawings & Flow Charts malfunction of system, refrigerant system address un- defined ............205 abnormal discharge pipe temperature ..161, 162 malfunction of tank thermistor (r3t) ...... 138 actuation of high pressure switch ....144, 146 malfunction of thermistor (r1t) for outdoor air ..163 actuation of low pressure sensor ....149, 151 malfunction of thermistor (r3t) liquid thermistor r-410a ..............
  • Page 262 ESIE09-08 setting of refrigerant recovery mode ....113 special ..............52 switch box layout ............28 system is not set yet ..........204 torque wrench ............243 troubleshooting by remote control ......119 turn power on ............73 weigher for refrigerant charge ......246 wired remote control ..........81 wiring diagrams ............216 Drawings &...

This manual is also suitable for:

Ersq 016aav1Ersq 016aay1Ersq 014aav1Errq 011aav1Ersq 011aay1Errq 011aay1 ... Show all

Table of Contents