Page 1 ESIE11-05 Service Manual Small inverter chillers EWAQ016BAW EWYQ016BAW EWAQ021BAW EWYQ021BAW EWAQ025BAW EWYQ025BAW EWAQ032BAW EWYQ032BAW EWAQ040BAW EWYQ040BAW EWAQ050BAW EWYQ050BAW EWAQ064BAW EWYQ064BAW...
Page 3: Table Of Contents
ESIE11-05 Table of Contents 1. Introduction .....................v 1.1 Safety Cautions ..................v Part 1 - General Outline..............1 1. Specifications ..................2 1.1 Option Specifications................2 1.2 Technical Specifications................2 1.3 Electrical Specifications................2 1.4 Nomenclature ...................2 1.5 Operation Range ..................2 2. Refrigerant Circuit ...................3 2.1 Refrigerant Circuit ..................3 2.2 Functional Parts Layout Outdoor Unit ............9 2.3 Refrigerant Flow for Each Operation Mode..........12...
Page 4: Table Of Contents
ESIE11-05 5. Other Control..................58 5.1 Emergency Operation ................58 5.2 Demand Operation .................61 6. Outline of Control (Hydrobox) ...............62 6.1 Freeze Prevention ..................62 6.2 Thermostat Control.................63 6.3 Flow Control ...................64 7. Field Setting from Outdoor Unit.............65 7.1 Field Setting from Outdoor Unit..............65 7.2 “Setting Mode 1”..................70 7.3 “Setting Mode 2”..................71 7.4 Monitor Mode ..................75...
Page 5: Table Of Contents
ESIE11-05 4.27 “J9”......................143 4.28 “JA”......................144 4.29 “JC”......................145 4.30 “L4”......................146 4.31 “L5”......................148 4.32 “L8”......................150 4.33 “L9”......................152 4.34 “LC”......................154 4.35 “P1”......................157 4.36 “P4”......................158 4.37 “PJ”......................160 4.38 “U0”......................161 4.39 “U1”......................162 4.40 “U2”......................163 4.41 “U3”......................166 4.42 “U4”......................167 4.43 “U5”......................168 4.44 “U8”......................169 4.45 “UA”......................170 4.46 “UF”......................171 4.47 “UH”......................172 4.48 [CHECK 1]....................173 4.49 [CHECK 2]....................174...
Page 6 ESIE11-05 1.3 Operation when Power is Turned On ...........212 Part 6 - Maintenance ..............213 1. Maintenance of the Main Parts ............215 Index ..................... i Table of Contents...
Page 7 Introduction ESIE11-05 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 ESIE11-05 Introduction Warning Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug. Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or fire. Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock.
Page 9 Introduction ESIE11-05 1.1.2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools can cause an electrical shock, excessive heat generation or fire.
Page 10 ESIE11-05 Introduction 1.1.3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet all the way. If the plug has dust or loose connection, it can cause an electrical shock or fire. If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
Page 11 Introduction ESIE11-05 1.1.5 Using Icons List Icon Type of Description Information Note A “note” provides information that is not indispensable, but may nevertheless be valuable to the reader, such as tips and tricks. Note: Caution A “caution” is used when there is danger that the reader, through incorrect manipulation, may damage equipment, loose data, get Caution an unexpected result or has to restart (part of) a procedure.
Page 12: Part 1 - General Outline
ESIE11-05 Part 1 General Outline 1. Specifications ..................2 1.1 Option Specifications................2 1.2 Technical Specifications................2 1.3 Electrical Specifications................2 1.4 Nomenclature ...................2 1.5 Operation Range ..................2 2. Refrigerant Circuit ...................3 2.1 Refrigerant Circuit ..................3 2.2 Functional Parts Layout Outdoor Unit ............9 2.3 Refrigerant Flow for Each Operation Mode..........12 3.
Page 13: Specifications
Specifications ESIE11-05 1. Specifications Option Specifications See databook Technical Specifications See databook Electrical Specifications See databook Nomenclature **** Machine type EWA = Air-cooled chiller, cooling only EWY = Air-cooled chiller, heat pump Refrigerant Q = R-410A Capacity class in kW (Cooling) Always 3-digit code 016, 021, 025, 032, 040, 050, 064 Model series...
Page 14: Refrigerant Circuit
ESIE11-05 Refrigerant Circuit 2. Refrigerant Circuit Refrigerant Circuit 2.1.1 EWYQ016BA No. in refrigerant Symbol Name Major Function system diagram Inverter compressor is operated on frequencies between 52Hz and 266Hz by using Inverter compressor (INV) the inverter, while Standard compressor is operated with commercial power supply only.
Page 15 Refrigerant Circuit ESIE11-05 EWYQ016BA General Outline...
Page 16: Esie11
ESIE11-05 Refrigerant Circuit 2.1.2 EWYQ021BA, 025BA, 040BA Module, 050BA Module No. in refrigerant Symbol Name Major Function system diagram Inverter compressor (INV) Inverter compressor is operated on frequencies between 52Hz and 210Hz by using the inverter, while Standard compressor is operated with commercial power supply Standard compressor 1 only.
Page 17 Refrigerant Circuit ESIE11-05 EWYQ021BA, 025BA, 040BA module, 050BA module General Outline...
Page 18 ESIE11-05 Refrigerant Circuit 2.1.3 EWYQ032BA, 064BA Module No. in refrigerant Symbol Name Major Function system diagram Inverter compressor (INV) Standard compressor 1 Inverter compressor is operated on frequencies between 52Hz and 266Hz by using (STD1) the inverter, while Standard compressor is operated with commercial power supply only.
Page 19 Refrigerant Circuit ESIE11-05 EWYQ032BA, 064BA module General Outline...
Page 20: Functional Parts Layout Outdoor Unit
ESIE11-05 Refrigerant Circuit Functional Parts Layout Outdoor Unit 2.2.1 EWYQ016BA Top view Heat exchanger Accumulator High pressure sensor (S1NPH) THERMISTOR Front view THERMISTOR THERMISTOR ELECTRONIC ELECTRONIC THERMISTOR THERMISTOR THERMISTOR THERMISTOR General Outline...
Page 21 Refrigerant Circuit ESIE11-05 2.2.2 EWYQ021BA, 025BA, 040BA Module, 050BA Module Top view Accumulator Heat exchanger THERMISTOR THERMISTOR Front view THERMISTOR THERMISTOR ELECTRONIC ELECTRONIC THERMISTOR THERMISTOR THERMISTOR THERMISTOR General Outline...
Page 22 ESIE11-05 Refrigerant Circuit 2.2.3 EWYQ032BA, 064BA Module Top view Heat exchanger Accumulator THERMISTOR THERMISTOR THERMISTOR Front view THERMISTOR THERMISTOR ELECTRONIC ELECTRONIC THERMISTOR THERMISTOR THERMISTOR THERMISTOR General Outline...
Page 23: Refrigerant Flow For Each Operation Mode
Refrigerant Circuit ESIE11-05 Refrigerant Flow for Each Operation Mode EWYQ016BA cooling operation "High temperature, high pressure gas" Heat exchanger "High temperature, high pressure liquid" "Low temperature, low pressure" Plate heat exchanger K11E EXV:Normal control Filter Filter Electronic expansion valve Indoor unit Thermostat "ON"...
Page 24 ESIE11-05 Refrigerant Circuit Heating operation "High temperature, high pressure gas" Heat exchanger "High temperature, high pressure liquid" Plate heat "Low temperature, low pressure" exchanger K11E EXV:Normal control Filter Filter Electronic expansion valve Indoor unit Thermostat "ON" SUBCOOLING HEAT EXCHANGER HEAT EXCHANGER S1NPH S1PH...
Page 25 Refrigerant Circuit ESIE11-05 EWYQ021BA, 025BA cooling operation "High temperature, high pressure gas" Heat exchanger "High temperature, high pressure liquid" "Low temperature, low pressure" Plate heat exchanger K11E EXV:Normal control Filter Filter Electronic expansion valve Indoor unit Thermostat "ON" SUBCOOLING HEAT EXCHANGER HEAT EXCHANGER...
Page 26 ESIE11-05 Refrigerant Circuit Heating operation "High temperature, high pressure gas" Heat exchanger "High temperature, high pressure liquid" Plate heat "Low temperature, low pressure" exchanger K11E EXV:Normal control Filter Filter Electronic expansion valve Indoor unit Thermostat "ON" SUBCOOLING HEAT EXCHANGER HEAT EXCHANGER S1NPH S1PH...
Page 27 Refrigerant Circuit ESIE11-05 EWYQ032BA cooling operation "High temperature, high pressure gas" Heat exchanger "High temperature, high pressure liquid" "Low temperature, low pressure" Plate heat exchanger K11E EXV:Normal control Filter Filter Electronic expansion valve Indoor unit Thermostat "ON" SUBCOOLING HEAT EXCHANGER HEAT EXCHANGER S1NPH...
Page 28 ESIE11-05 Refrigerant Circuit Heating operation "High temperature, high pressure gas" Heat exchanger "High temperature, high pressure liquid" Plate heat "Low temperature, low pressure" exchanger K11E EXV:Normal control Filter Filter Electronic expansion valve Indoor unit Thermostat "ON" SUBCOOLING HEAT EXCHANGER HEAT EXCHANGER S1NPH S1PH...
Page 29: Water Circuit
Water Circuit ESIE11-05 3. Water Circuit EWA/YQ016BA, 021BA, 025BA, 032BA General Outline...
Page 30 ESIE11-05 Water Circuit Legend Part Number Description R11T Outlet water temperature sensor R12T Inlet water temperature sensor R13T Refrigerant liquid temperature sensor R14T Refrigerant gas temperature sensor Notes Check valve Flare connection Screw connection Flange connection Pinched pipe Spinned pipe Airpurge Plate heat exchanger Flowswitch...
Page 31: Ewa/Yq040Ba, 050Ba, 064Ba Module
Water Circuit ESIE11-05 EWA/YQ040BA, 050BA, 064BA Module General Outline...
Page 32 ESIE11-05 Water Circuit Legend Part Number Description R11T Outlet water temperature sensor R12T Inlet water temperature sensor R13T Refrigerant liquid temperature sensor R14T Refrigerant gas temperature sensor K11E Electronic expansion valve (circuit 1) R21T Outlet water temperature sensor R22T Inlet water temperature sensor R23T Refrigerant liquid temperature sensor R24T...
Page 33: Pressure Drop
Water Circuit ESIE11-05 Pressure Drop 3.3.1 Unit with Standard Pump EWA/YQ016~025BAWP EWA/YQ032BAWP EWA/YQ040+050BAWP EWA/YQ064BAWP l/min 3.3.2 Unit with High Static Pump EWA/YQ016~025BAWH EWA/YQ032BAWH EWA/YQ040+050BAWH EWA/YQ064BAWH l/min General Outline...
Page 34 ESIE11-05 Water Circuit 3.3.3 Unit without Pump EWA/YQ016~025BAWN EWA/YQ032BAWN EWA/YQ040+050BAWN EWA/YQ064BAWN l/min Water flow 3.3.4 Plate Heat Exchanger Pressure Drop General Outline...
Page 35 Water Circuit ESIE11-05 Legend Number Description Size 016 - 021 - 025 Size 032 Size 040 - 050 Size 064 Warning Selecting a flow outside the curves can cause damage to or malfunctioning of the unit. Also see minimum and maximum allowed flow in the technical specifications. General Outline...
Page 36: Wiring Diagram
ESIE11-05 Wiring Diagram 4. Wiring Diagram Hydrobox Wiring General Outline...
Page 37 Wiring Diagram ESIE11-05 Legend Part Number Description Main PCB (master) User interface PCB Control PCB Demand PCB Main PCB (slave) Demand PCB Remote user interface PCB C1 - C3 Filter capacitor Switch box heater Plate heat exchanger heater (circuit 1) Plate heat exchanger heater (circuit 2) Water piping heater Expansion vessel heater...
Page 38 ESIE11-05 Wiring Diagram Switch box layout Notes 1. X1M Terminal Field wiring terminal for high voltage Field wiring terminal for low voltage Factory wiring terminal for low voltage Earth wiring Field supply Option Wiring depending on model Not mounted in switch box Several wiring possibilities 3.
Page 39: Wiring Diagram - Three Phase (3N~)
Wiring Diagram ESIE11-05 Wiring Diagram - Three Phase (3N~) Legend Part Number Description Expansion vessel heater F1 - F2 Fuse (F, 1A, 250V) Pump contactor Pump overcurrent relay Pump PS (A*P) Switching power supply Q1DI Earth leakage circuit breaker Thermostat for expansion vessel heater Main switch X1M - X4M Terminal strip...
Page 40: Wiring Outdoor
ESIE11-05 Wiring Diagram Wiring Outdoor 4.3.1 EW*Q016BA *1 Communication to the hydrobox *2 Communication used with option DTA104A62 *3 Communication used with multi units General Outline...
Page 41 Wiring Diagram ESIE11-05 Legend Part Number Description Printed circuit board A1P: Main A4P: Fan A1P-A4P A2P: Noise filter A5P: *1 A3P: Inverter Push button switch BS1~BS5 (Mode, set, return, test, reset) Capacitor C63, C66 Capacitor DS1, DS2 Dip switch E1HC Crankcase heater Fuse (250V, 8A ) (A4P)
Page 42 ESIE11-05 Wiring Diagram Switch box layout Notes 1. This wiring diagram only applies to the outdoor unit : field wiring : indication of parts outside switch box : terminal strip : connector : terminal : protective earth (screw) 4. When using the option adapter, refer to the installation manual 5.
Page 43 Wiring Diagram ESIE11-05 4.3.2 EW*Q021BA, 025BA, 040BA Module, 050BA Module *1 Communication to the hydrobox *2 Communication used with option DTA104A62 *3 Communication used with multi units General Outline...
Page 44 ESIE11-05 Wiring Diagram Legend Part Number Description Printed circuit board A1P: Main A4P: Fan A1P-A6P A2P: Noise filter A5P: *1 A3P: Inverter A6P: Current sensor Push button switch BS1~BS5 (Mode, set, return, test, reset) Capacitor C63, C66 Capacitor DS1, DS2 Dip switch E1HC, E2HC Crankcase heater...
Page 45 Wiring Diagram ESIE11-05 Switch box layout Notes 1. This wiring diagram only applies to the outdoor unit : field wiring : indication of parts outside switch box : terminal strip : connector : terminal : protective earth (screw) 4. When using the option adapter, refer to the installation manual 5.
Page 46 ESIE11-05 Wiring Diagram 4.3.3 EW*Q032BA, 064BA Module *1 Communication to the hydrobox *2 Communication used with option DTA104A62 *3 Communication used with multi units General Outline...
Page 47 Wiring Diagram ESIE11-05 Legend Part Number Description Printed circuit board A1P: Main A4P, A8P: Fan A1P-A7P A2P: Noise filter A6P, A7P: Current sensor A3P: Inverter Push button switch BS1~BS5 (Mode, set, return, test, reset) Capacitor C63, C66 Capacitor DS1, DS2 Dip switch E1HC~E3HC Crankcase heater...
Page 48 ESIE11-05 Wiring Diagram Switch box layout Notes 1. This wiring diagram only applies to the outdoor unit : field wiring : indication of parts outside switch box : terminal strip : connector : terminal : protective earth (screw) 4. When using the option adapter, refer to the installation manual 5.
Page 49: Field Wiring
Wiring Diagram ESIE11-05 Field Wiring 3TW60726-2 General Outline...
Page 50: Part 2 - Functional Description
ESIE11-05 Part 2 Functional Description 1. Function General...................40 1.1 Symbol ....................40 1.2 Operation Mode..................41 2. Basic Control..................42 2.1 Normal Operation ...................42 2.2 Compressor PI Control................43 2.3 Electronic Expansion Valve PI Control...........44 2.4 Step Control of Outdoor Unit Fans ............45 2.5 Outdoor Unit Fan Control in Cooling Operation ........46 3.
Page 51: Function General
Function General ESIE11-05 1. Function General Symbol Symbol Electric symbol Description or function 20S1 Four way valve (Energize during heating) – Discharge pipe superheated degree DSHi – Discharge pipe superheat of inverter compressor DSHs – Discharge pipe superheat of standard compressor –...
Page 52: Operation Mode
ESIE11-05 Function General Operation Mode Operation in stop mode Hydrobox unit stop Hydrobox unit thermostat ON or thermostat OFF Malfunction/Standby (Retry) Restart standby Pressure (Compressor stop) equalization prior to startup Malfunction/ Standby (Retry) Hydrobox unit stop or thermostat OFF Startup control Pump-down Operation mode residual...
Page 53: Basic Control
Basic Control ESIE11-05 2. Basic Control Normal Operation 2.1.1 List of Functions in Normal Operation Function of Functional Part (Electric Part Name Symbol Symbol) Normal Cooling Normal Heating PI control, High pressure PI control, High pressure protection, Low pressure protection, Low pressure ...
Page 54: Compressor Pi Control
ESIE11-05 Basic Control Compressor PI Control Compressor PI control Carries out the compressor capacity PI control to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance. [Cooling operation] Controls compressor capacity to adjust Te to Low pressure equivalent saturation achieve target value (TeS).
Page 55: Electronic Expansion Valve Pi Control
Basic Control ESIE11-05 Electronic Expansion Valve PI Control Heating operation EXV1 K11 & K21E (*1) (*2) outdoor hydrobox unit EXV1 is controlled towards superheat (SH) SH = Ts- Te SH: Evaporator outlet superheated degree (C) Suction pipe temperature detected by thermistor R6T (R7T) (C) Low pressure equivalent saturation temperature (C)
Page 56: Step Control Of Outdoor Unit Fans
ESIE11-05 Basic Control Step Control of Outdoor Unit Fans Used to control the revolutions of outdoor unit fans in the steps listed in table below, according to condition changes. Fan revolutions (rpm) EW*Q021BA, EW*Q032BA, STEP 025BA, 040BA 064BA module EW*Q016BA module, 050BA FAN1 FAN2...
Page 57: Outdoor Unit Fan Control In Cooling Operation
Basic Control ESIE11-05 Outdoor Unit Fan Control in Cooling Operation While in cooling operation, if the outdoor temperature is low, this mode provides high pressure control using the outdoor unit fan. Upper limit of outdoor unit *For fan revolutions in each step, fan revolutions refer to information on previous Step 8...
Page 58: Special Control
ESIE11-05 Special Control 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.
Page 59 Special Control ESIE11-05 3.1.2 Startup Control in Heating Operation Thermostat ON Startup control Pressure equalization control prior to startup STEP1 STEP2 124 Hz + OFF + OFF 52 Hz Compressor 0 Hz +2 steps/20 sec. + OFF + OFF (until Pc - Pe>0.39MPa is achieved) Outdoor unit fan STEP4 STEP8...
Page 60: Defrosting Operation
ESIE11-05 Special Control Defrosting Operation To defrost the outdoor unit heat exchanger while working as Evaporator, the defrost operation is conducted to recover the heating capacity and runs a reverse cycle. [Start conditions] Heat exchange temperature Tb < Tdef (calculated by logic depending on Tamb) and the unit has been at least 25 min in heating or Te <...
Page 61: Pump-Down Residual Operation
Special Control ESIE11-05 Pump-down Residual Operation 3.3.1 Pump-down Residual Operation in Cooling Operation If the liquid refrigerant stays in the Evaporator at the startup of a compressor, this liquid refrigerant enters the compressor, thus resulting in diluted oil in the compressor and then degraded lubrication performance.
Page 62: Standby
ESIE11-05 Special Control Standby 3.4.1 Restart Standby Used to forcedly stop the compressor for a period of 3 minutes, in order to prevent the frequent ON/OFF of the compressor and equalize the pressure within the refrigerant system. Actuator Operation Compressor Ta>30C: STEP4 Outdoor unit fan Ta30C: OFF...
Page 63: Stopping Operation
Special Control ESIE11-05 Stopping Operation 3.5.1 When System is in Stop Mode (Normal Operation Stop) This mode is used to define actuator operations when the system stops. Actuator Operation Compressor Outdoor unit fan Four way valve Holds Main electronic expansion valve (EV1) 0 pls Subcooling electronic expansion valve (EV2) 0 pls...
Page 64: Protection Control
ESIE11-05 Protection Control 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 case of EW*Q040BA, 050BA, 064BA, each outdoor unit performs this control individually in the following sequence.
Page 65: Low Pressure Protection Control
Protection Control ESIE11-05 Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure. In the case of multi-outdoor-unit system, each outdoor unit performs this control individually in the following sequence. Pe: LP pressure sensor detection Low pressure not limited value for each outdoor unit...
Page 66: Discharge Pipe Protection Control
ESIE11-05 Protection Control 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] HTdi : Value of INV compressor discharge pipe temperature (Tdi) compensated with Normal operation outdoor air temperature...
Page 67: Inverter Protection Control
Protection Control ESIE11-05 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. In the case of EW*Q040BA, 050BA, 064BA, each INV compressor performs these controls in the following sequence.
Page 68: Std Compressor Overload Protection
ESIE11-05 Protection Control STD Compressor Overload Protection This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of STD compressor such as locking. STD compressor ON *If the power supply is reset while in operation prohibition mode, the prohibition timer will continue counting when the power supply is turned ON.
Page 69: Other Control
Other Control ESIE11-05 5. Other Control Emergency Operation If the compressor cannot operate, this control inhibits any applicable compressor or outdoor unit from operating to perform emergency operation only with the operative compressor or outdoor unit. Caution In order to disable the compressor operation due to a failure or else, be sure to do so in emergency operation mode.
Page 70 ESIE11-05 Other Control 5.1.2 In the Case of EW*Q021BA-032BA Set the system to In order to set an INV compressor to operation  LED display (h:ON h:OFF :Blink) operation prohibition mode, set No. 42 of Setting mode 2 H1P----H7P to "EMERGENCY OPERATION". prohibition mode (Procedure) by compressor...
Page 71 Other Control ESIE11-05 5.1.3 In the Case of EW*Q040BA-064BA Module Emergency “Inhibition of operation” is set with each outdoor unit module. operation with Make the following settings with the master unit. (Setting with the slave unit becomes disabled.) Discriminate the operating status of the master unit / slave units through the following LED settings in display.
Page 72: Demand Operation
ESIE11-05 Other Control Demand Operation In order to save the power consumption, the capacity of outdoor unit is saved with control forcibly by using “Demand 1 Setting” or “Demand 2 Setting”. To operate the unit with this mode, additional setting of “Continuous Demand Setting” or external input by external control adaptor is required.
Page 73: Outline Of Control (Hydrobox)
Outline of Control (Hydrobox) ESIE11-05 6. Outline of Control (Hydrobox) Freeze Prevention Freeze-up The freeze-up prevention is only active when the unit is in thermo OFF condition and field prevention by setting [8-04] has been set to 1 or 2. thermo off [Start condition] condition...
Page 74: Thermostat Control
ESIE11-05 Outline of Control (Hydrobox) Thermostat Control Thermo ON/OFF conditions depend on LWT or room temperature regulation. For LWT control (factory set):  Cooling Thermo OFF condition: LWT < LWT set -2 (for 5 min)  LWT < LWT set -b (immediately; b= field setting A-03) ...
Page 75: Flow Control
Outline of Control (Hydrobox) ESIE11-05 Flow Control 6.3.1 Unit State OPERATION LED ON Pump starts.  If no flow detected for 2 min unit stops and gives A6 error.  6.3.2 Unit State RUN COOLING/HEATING  Pump ON. If no flow, unit will decrease capacity to keep the unit in safe situation sensor R13T and ...
Page 76: Field Setting From Outdoor Unit
ESIE11-05 Field Setting from Outdoor Unit 7. Field Setting from Outdoor Unit Field Setting from Outdoor Unit List of field This following section indicates the list of field setting items. For the lists of dip switch contents, setting items Setting mode 1, and Setting mode 2, refer to information in tables shown on the following page onward.
Page 77 Field Setting from Outdoor Unit ESIE11-05 Setting item Content and objective of setting Overview of setting procedure  If the compressor has a failure, used to  Make this setting while in "Setting mode 2". prohibit the operation of compressor(s) For system with a single outdoor unit: Set Emergency concerned or outdoor unit(s) concerned...
Page 78 ESIE11-05 Field Setting from Outdoor Unit Setting at replacement by spare PCB Caution DIP switch Setting after changing the main PCB (A1P) to spare PCB After the replacement by the spare PCB, be sure to make settings shown below. When you change the main PCB (A1P) to spare PCB, please carry out the following setting. Initial conditions of dip switches 1 2 3 4 1 2 3 4...
Page 79 Field Setting from Outdoor Unit ESIE11-05 Dipswitch settings for the Settings Applicable model applicable Positions Switches ON models EWYQ016BAWP (H/P) DS1-4, DS2-3 EWYQ016BAWN (H/P) EWYQ021BAWP (H/P) EWYQ021BAWN (H/P) DS1-4, DS2-2, DS2-3 EWYQ040BAWP (H/P) EWYQ040BAWN (H/P) EWYQ025BAWP (H/P) EWYQ025BAWN (H/P) DS1-4, DS2-4 EWYQ050BAWP (H/P) EWYQ050BAWN (H/P) EWYQ032BAWP (H/P)
Page 80 ESIE11-05 Field Setting from Outdoor Unit Used to modify the operating status and to set program addresses, etc. Usually used in servicing the system. Monitor mode (H1P blinks)  Used to check the program made in Setting mode 2. Mode changing procedure 1 Using the MODE button, the modes can be changed as follows.
Page 81 Field Setting from Outdoor Unit ESIE11-05 “Setting Mode 1” Procedure for changing COOL/ Procedure for checking check items HEAT selection The system is normally set to "Setting mode 1". setting Should the system be set to any COOL/HEAT select mode other than that, push the MODE TEST Demand...
Page 82 ESIE11-05 Field Setting from Outdoor Unit “Setting Mode 2” Setting item Description Push and hold the MODE (BS1) Used to make setting of contents to display on the digital button for 5 seconds and set to Digital pressure pressure gauges (e.g. pressure sensors and temperature “Setting mode 2”.
Page 83 Field Setting from Outdoor Unit ESIE11-05 Setting item Description Emergency operation (Setting for the master unit operation prohibition in EW*Q040BA, Used to temporarily prohibit the applicable outdoor unit 050BA, 064BA from operating should there be any faulty part in system) EW*Q040BA, 050BA, 064BA system.
Page 84 ESIE11-05 Field Setting from Outdoor Unit Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave  Factory setting k h h h h h h  Address k h h h h h k Binary number Digital pressure gauge kit display...
Page 85 Field Setting from Outdoor Unit ESIE11-05 Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave  Factory set k h h h h h k  Emergency operation k h h h h k h Slave unit 1 operation: Inhibited k h h h h h k ...
Page 86: Monitor Mode
ESIE11-05 Field Setting from Outdoor Unit Monitor Mode To enter the monitor mode, push the Setting item LED display Data display MODE (BS1) button when in “Setting mode 1”. l h h h h h h Various settings l h h h h h k C/H unified address l h h h h k h Low noise/demand address...
Page 87: Setting Of Low Noise Operation And Demand Operation
Field Setting from Outdoor Unit ESIE11-05 Setting of Low Noise Operation and Demand Operation Setting of low By connecting the external contact input to the low noise input of the outdoor unit external noise operation control adaptor (optional), you can lower operating noise by 2-3 dB. Setting Content Mode 1...
Page 88 ESIE11-05 Field Setting from Outdoor Unit Image of operation in the case of A Image of operation in the case of B Image of operation in the case of A and B Functional Description...
Page 89 Field Setting from Outdoor Unit ESIE11-05 Setting of By connecting the external contact input to the demand input of the outdoor unit external control demand adaptor (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. operation Setting content Setting method...
Page 90 ESIE11-05 Field Setting from Outdoor Unit Image of operation in the case of A Power consumption The power Rated power consumption consumption during 80 % of rated power consumption Demand level 1 instructing Demand level 2 instructing Demand level 3 instructing the demand level 1 70 % of rated power consumption instructing can be...
Page 91 Field Setting from Outdoor Unit ESIE11-05  : ON  : OFF : Blink    Setting Setting Setting No. indication Setting No. indication Setting Setting contents indication (Initial setting) contents contents H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P External ...
Page 92: Setting Of Refrigerant Recovery Mode
ESIE11-05 Field Setting from Outdoor Unit Setting of Refrigerant Recovery Mode When carrying out the refrigerant recovery on site, fully open the respective expansion valve of the unit by following procedure. All operations are prohibited. [Operation procedure] In setting mode 2 with units in stop mode, set “Refrigerant Recovery / Vacuuming mode” in ...
Page 93: Setting Of Vacuuming Mode
Field Setting from Outdoor Unit ESIE11-05 Setting of Vacuuming Mode In order to perform vacuuming operation at site, fully open the expansion valves of the unit and turn on some solenoid valves by following procedure. [Operating procedure] With Setting Mode 2 while the unit stops, set “Refrigerant recovery / Vacuuming mode” in ...
Page 94: Remote Controller
ESIE11-05 Remote Controller 8. Remote Controller Temperature Read Out for Remote Control Wired remote control EKRUAHTB (BRC21A52) On the remote controller, the actual temperatures can be displayed. 1. Push and hold the ba button for 5 seconds. The leaving water temperature is displayed (icons l and = and L are blinking). 2.
Page 95: Field Setting
Remote Controller ESIE11-05 Field Setting Field setting from Individual function of hydrobox can be changed from the remote control. At the time of remote control installation or after service inspection / repair, make the local setting in accordance with the following description.
Page 96 ESIE11-05 Remote Controller 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 97 Remote Controller ESIE11-05 Field settings table 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 — Room temperature compensation value –5~5 °C Not applicable.
Page 98 ESIE11-05 Remote Controller Installer setting at variance with default value First Second Default code code Setting name Date Value Date Value value Range Step Unit Automatic temperature compensation Leaving water temperature compensation value –2~2 °C (heating) Leaving water thermistor auto corrective function 1 (ON) —...
Page 99 Remote Controller ESIE11-05 8.2.1 [0] Remote Control Setup [0-00] User permission level  The remote controller can be programmed to make certain buttons and functions unavailable for the user. There are 2 permission levels defined. Both levels (level 2 and level 3) are basically the same, the only difference is that for level 3 no water temperature settings are possible (see table below).
Page 100 ESIE11-05 Remote Controller In the following tables both methods on how to interpret the schedule timer are shown. Method 1 Space heating based on temperature set point During During schedule timer operation the operation LED is lit continuously. operation When The schedule timer for space heating will stop and will not start again.
Page 101 Remote Controller ESIE11-05 Method 2 Space heating based on ON/OFF instruction During When the schedule timer switches space heating OFF, the controller will be operation switched off (operation LED will stop working). When The schedule timer for space heating will stop (when active at that moment) and will pushing the start again at the next scheduled ON function.
Page 102 ESIE11-05 Remote Controller 8.2.2 [1] Settings Are Not Applicable Not applicable. 8.2.3 [2] Automatic Setback Function Setback function provides the possibility to lower the room temperature/water temperature. The setback function can for instance be activated during the night because the temperature demands during night and day are not the same.
Page 103 Remote Controller ESIE11-05 8.2.4 [3] Weather Dependent Set Point When weather dependent operation is active, the leaving water temperature is determined automatically depending on the outdoor temperature: colder outdoor temperatures will result in warmer water and vice versa. The unit has a floating set point. Activating this operation will result in a lower power consumption than use with a manually fixed leaving water set point.
Page 104 ESIE11-05 Remote Controller 8.2.7 [6] Option Setup [6-01] External room thermostat option  If the optional external room thermostat is installed (option EKRP1AHT*), its operation must be enabled by field setting. Default [6-01]=0, which means no external room thermostat is installed.
Page 105 Remote Controller ESIE11-05 8.2.9 [8] Option Setup [8-00] Remote controller temperature control   [8-00]=0 the unit operates in leaving water temperature control. This is the default setting. [8-00]=1 the unit operates in room temperature control. This means that the remote ...
Page 106 ESIE11-05 Remote Controller 8.2.11 [A] Option Setup [A-00] Setting is not applicable.  [A-01] Setting is not applicable.   [A-02] Setting is not applicable. [A-03] Leaving water temperature overshoot/undershoot value  This setting makes it possible to set the allowable overshoot (heating)/undershoot (cooling) when operating the unit during leaving water control.
Page 107 Remote Controller ESIE11-05 8.2.15 [E] Service Mode [E-01] Setting not available.  [E-02] Setting not available.   [E-03] Setting not available. [E-04] Pump only operation  When commissioning and installing the unit it is very important to get all air out of the water circuit.
Page 108: Weekly Schedual
ESIE11-05 Remote Controller Weekly Schedual See Installation Operation Manual. Functional Description...
Page 109 Remote Controller ESIE11-05 Functional Description...
Page 110: Part 3 - Troubleshooting
ESIE11-05 Part 3 Troubleshooting 1. Symptom-based Troubleshooting ............101 2. Malfunction Codes and Description ............104 3. Malfunction Code Indication by Outdoor Unit PCB ......106 4. Error Codes..................110 4.1 “A1”......................110 4.2 “A6”......................111 4.3 “A9”......................112 4.4 “AE”......................114 4.5 “AJ”......................115 4.6 “C1”......................116 4.7 “C4”......................117 4.8 “C9”......................118 4.9 “CA”......................119 4.10 “CJ”......................120...
Page 111 ESIE11-05 4.40 “U2”......................163 4.41 “U3”......................166 4.42 “U4”......................167 4.43 “U5”......................168 4.44 “U8”......................169 4.45 “UA”......................170 4.46 “UF”......................171 4.47 “UH”......................172 4.48 [CHECK 1]....................173 4.49 [CHECK 2]....................174 4.50 [CHECK 3]....................175 4.51 [CHECK 4]....................176 4.52 [CHECK 5]....................177 4.53 [CHECK 6]....................178 4.54 [CHECK 14]..................179 4.55 [CHECK 15]..................180 Troubleshooting...
Page 112: Symptom-Based Troubleshooting
ESIE11-05 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 113 Symptom-based Troubleshooting ESIE11-05 Symptom Supposed Cause Countermeasure The system <Hydrobox and outdoor units> These sounds are produced from Normal operation. produces “Hissing” sounds are gas (refrigerant) flowing sounds. continuously produced while in respectively through the hydrobox cooling or defrosting operation. and outdoor units.
Page 114 ESIE11-05 Symptom-based Troubleshooting Symptom Supposed Cause Countermeasure 13 The outdoor unit After stopping operation It stops in order to prevent oil or Normal operation. compressor or refrigerant from dwelling. It stops after a lapse of the outdoor unit approximately 5 to 10 minutes. fan does not stop.
Page 115: Malfunction Codes And Description
Malfunction Codes and Description ESIE11-05 2. Malfunction Codes and Description k: ON h: OFF l : Blink Malfunction Operation Malfunction contents Page code lamp Referred Hydrobox Hydrobox PC board defect Hydrobox water system error Hydrobox malfunction of moving part of electronic expansion valve (K11E or K12E) R-410A circuit Water circuit error Capacity error...
Page 116 ESIE11-05 Malfunction Codes and Description k: ON h: OFF l : Blink Malfunction Operation Malfunction contents Page code lamp Referred System Outdoor unit low pressure drop due to refrigerant shortage or electronic expansion valve failure Reverse phase, open phase Outdoor unit power supply insufficient or instantaneous failure Outdoor unit check operation is not executed Malfunction of transmission between hydrobox units and outdoor units Hydrobox malfunction of transmission between remote controller and...
Page 117: Malfunction Code Indication By Outdoor Unit Pcb
Malfunction Code Indication by Outdoor Unit PCB ESIE11-05 3. Malfunction Code Indication by Outdoor Unit PCB <Monitor mode> Contents of malfunction Malfunction code To enter the monitor mode, push the PCB malfunction PCB malfunction MODE (BS1) button when in Faulty PCB “Setting mode 1”.
Page 118 ESIE11-05 Malfunction Code Indication by Outdoor Unit PCB k : ON h : OFF l :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 (L2) Display of contents of Display of contents of...
Page 119 Malfunction Code Indication by Outdoor Unit PCB ESIE11-05 <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 inside Faulty thermistor of inverter box switch box...
Page 120 ESIE11-05 Malfunction Code Indication by Outdoor Unit PCB k : ON h : OFF l :Blink Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 Confirmation of malfunction 4 Mal f unction 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 Display of contents of Display of contents of Display 1 of...
Page 121: Error Codes
Error Codes ESIE11-05 4. Error Codes “ ” Troubleshooting Troubleshooting...
Page 122 ESIE11-05 Error Codes “ ” Troubleshooting Rectify. (R11T, R12T, R21T, R22T). Is the Replace pump. pump able to run? Is their air Open up automatic air purge in the unit. in the system? A field installed air purges. Flow switch works Replace flowswitch.
Page 123 Error Codes ESIE11-05 “ ” Troubleshooting...
Page 124 ESIE11-05 Error Codes Troubleshooting hydrobox PC Troubleshooting...
Page 125 Error Codes ESIE11-05 “ ” Warning code: the unit doesn’t stop Troubleshooting Troubleshooting...
Page 126 ESIE11-05 Error Codes “ ” Troubleshooting Troubleshooting...
Page 127 Error Codes ESIE11-05 “ ” Troubleshooting Is the connector between hydrobox PC board (A1P) [X30A 3,4] and outdoor unit [X1M F1,F2] connected? (*1) transmission on hydrobox PC Check power supply from hydrobox A1P and A3P [X70A - Replace A3P PCB. X15A 1,2 A3P].
Page 128 ESIE11-05 Error Codes “ ” Troubleshooting of the hydrobox PC board (A5P). (R13T, R23T) from the hydrobox PC board (R13T or R23T). Replace the hydrobox PC board (A1P or A5P). Troubleshooting...
Page 129 Error Codes ESIE11-05 “ ” Troubleshooting the hydrobox PC board. (X12A) (R12T or R22T) from (R12T or R22T). the hydrobox PC board Replace the indoor unit PC board (A1P or A5P). Troubleshooting...
Page 130 ESIE11-05 Error Codes “ ” Troubleshooting the hydrobox PC board. (X17A) from the hydrobox PC board. Replace the indoor unit PC board (A1P or A5P). Troubleshooting...
Page 131 Error Codes ESIE11-05 4.10 “ ” Troubleshooting (A1P or A5P) Troubleshooting...
Page 132 ESIE11-05 Error Codes 4.11 “ ” Troubleshooting Troubleshooting...
Page 133 Error Codes ESIE11-05 4.12 “ ” When pressure is below 4.0Mpa, press BS3 and do a power restore or turn remote controller on and off. Troubleshooting...
Page 134 ESIE11-05 Error Codes Troubleshooting Troubleshooting...
Page 135 Error Codes ESIE11-05 4.13 “ ” Troubleshooting...
Page 136 ESIE11-05 Error Codes Troubleshooting and then restart the operation. Troubleshooting...
Page 137 Error Codes ESIE11-05 4.14 “ ” Troubleshooting...
Page 138 ESIE11-05 Error Codes Troubleshooting Troubleshooting...
Page 139 Error Codes ESIE11-05 4.15 “ ” Troubleshooting Troubleshooting...
Page 140 ESIE11-05 Error Codes 4.16 “ ” Troubleshooting...
Page 141 Error Codes ESIE11-05 Troubleshooting Troubleshooting...
Page 142 ESIE11-05 Error Codes Troubleshooting...
Page 143 Error Codes ESIE11-05 4.17 “ ” Troubleshooting...
Page 144 ESIE11-05 Error Codes Troubleshooting Troubleshooting...
Page 145 Error Codes ESIE11-05 4.18 “ ” Troubleshooting Troubleshooting...
Page 146 ESIE11-05 Error Codes 4.19 “ ” Troubleshooting Troubleshooting...
Page 147 Error Codes ESIE11-05 4.20 “ ” Troubleshooting Troubleshooting...
Page 148 ESIE11-05 Error Codes 4.21 “ ” Troubleshooting Troubleshooting...
Page 149 Error Codes ESIE11-05 4.22 “ ” Troubleshooting Troubleshooting...
Page 150 ESIE11-05 Error Codes 4.23 “ ” Troubleshooting Troubleshooting...
Page 151 Error Codes ESIE11-05 4.24 “ ” Troubleshooting Troubleshooting...
Page 152 ESIE11-05 Error Codes 4.25 “ ” Troubleshooting outdoor Troubleshooting...
Page 153 Error Codes ESIE11-05 4.26 “ ” Troubleshooting Is the connector for gas thermistor X16A[1,2] connected to A4P on the hydrobox? (R14T or R24T). R14T and R24T from outdoor unit PCB normal? (1.8kΩ to 800kΩ) Troubleshooting...
Page 154 ESIE11-05 Error Codes 4.27 “ ” Troubleshooting Troubleshooting...
Page 155 Error Codes ESIE11-05 4.28 “ ” Troubleshooting Troubleshooting...
Page 156 ESIE11-05 Error Codes 4.29 “ ” Troubleshooting Troubleshooting...
Page 157 Error Codes ESIE11-05 4.30 “ ” Troubleshooting...
Page 158 ESIE11-05 Error Codes Troubleshooting Troubleshooting...
Page 159 Error Codes ESIE11-05 4.31 “ ” Troubleshooting Troubleshooting...
Page 160 ESIE11-05 Error Codes Troubleshooting...
Page 161 Error Codes ESIE11-05 4.32 “ ” Troubleshooting Troubleshooting...
Page 162 ESIE11-05 Error Codes Troubleshooting...
Page 163 Error Codes ESIE11-05 4.33 “ ” Troubleshooting Troubleshooting...
Page 164 ESIE11-05 Error Codes Troubleshooting...
Page 165 Error Codes ESIE11-05 4.34 “ ” Troubleshooting...
Page 166 ESIE11-05 Error Codes Troubleshooting Troubleshooting...
Page 167 Error Codes ESIE11-05 Troubleshooting...
Page 168 ESIE11-05 Error Codes 4.35 “ ” Troubleshooting Troubleshooting...
Page 169 Error Codes ESIE11-05 4.36 “ ” Troubleshooting...
Page 170 ESIE11-05 Error Codes Troubleshooting Troubleshooting...
Page 171 Error Codes ESIE11-05 4.37 “ ” Troubleshooting Troubleshooting...
Page 172 ESIE11-05 Error Codes 4.38 “ ” Troubleshooting Troubleshooting...
Page 173 Error Codes ESIE11-05 4.39 “ ” Troubleshooting Troubleshooting...
Page 174 ESIE11-05 Error Codes 4.40 “ ” Troubleshooting...
Page 175 Error Codes ESIE11-05 Troubleshooting Troubleshooting...
Page 176 ESIE11-05 Error Codes Troubleshooting...
Page 177 Error Codes ESIE11-05 4.41 “ ” Troubleshooting Troubleshooting...
Page 178 ESIE11-05 Error Codes 4.42 “ ” Troubleshooting Reset the power supply. Is error U4 Communication problem was solved. still showing? Check wiring of D3 net F1/F2 communicates Check A1P X30[3,4] outdoor unit. Rectify. connection? Replace PCB A1P. Troubleshooting...
Page 179 Error Codes ESIE11-05 4.43 “ ” Troubleshooting Troubleshooting...
Page 180 ESIE11-05 Error Codes 4.44 “ ” Troubleshooting Troubleshooting...
Page 181 Error Codes ESIE11-05 4.45 “ ” Troubleshooting Reset power supply for the unit. Replace the hydrobox PCB. Is the malfunction Normal. code UA displayed? Replace outdoor unit PCB. Troubleshooting...
Page 182 ESIE11-05 Error Codes 4.46 “ ” Troubleshooting Is hydrobox Replace the hydrobox PCB. hydrobox - outdoor Troubleshooting...
Page 183 Error Codes ESIE11-05 4.47 “ ” Troubleshooting installation or after a hydrobox introduced to hydrobox hydrobox - outdoor and Replace the hydrobox PCB. for all hydrobox in Troubleshooting...
Page 184 ESIE11-05 Error Codes 4.48 [CHECK 1] Troubleshooting...
Page 185 Error Codes ESIE11-05 4.49 [CHECK 2] Troubleshooting...
Page 186 ESIE11-05 Error Codes 4.50 [CHECK 3] Large resistance Stop valve is closed. Check if the stop valve is open. of piping Check water filter. Water blockage Check water flow. Check for air in the system. Troubleshooting...
Page 187 Error Codes ESIE11-05 4.51 [CHECK 4] Troubleshooting...
Page 188 ESIE11-05 Error Codes 4.52 [CHECK 5] Troubleshooting...
Page 189 Error Codes ESIE11-05 4.53 [CHECK 6] Faulty hydrobox unit electronic expansion valve Faulty gas pipe thermistor of hydrobox unit Troubleshooting...
Page 190 ESIE11-05 Error Codes 4.54 [CHECK 14] Troubleshooting...
Page 191 Error Codes ESIE11-05 4.55 [CHECK 15] Troubleshooting...
Page 192: Part 4 - Service Procedure
ESIE11-05 Part 4 Service Procedure 1. List of Electrical and Functional Parts ..........182 1.1 EW*Q016BA..................182 1.2 EW*Q021BA, 025BA, 040BA Module, 050BA Module......183 1.3 EW*Q032BA, 064BA Module ...............184 2. Thermistor Resistance / Temperature Characteristics......185 3. Pressure Sensor .................187 4. Method of Checking the Inverter’s Power Transistors and Diode Modules....................188 5.
Page 193: List Of Electrical And Functional Parts
List of Electrical and Functional Parts ESIE11-05 1. List of Electrical and Functional Parts EW*Q016BA Item Name Symbol Type JT1GCVDKYR@T Inverter OC protection 14.7A device Type Compressor STD 1 — OC protection device Type STD 2 — OC protection device OC protection Fan motor 1.15A...
Page 194: Ew*Q021Ba, 025Ba, 040Ba Module, 050Ba Module
ESIE11-05 List of Electrical and Functional Parts EW*Q021BA, 025BA, 040BA Module, 050BA Module Item Name Symbol Type JT1GCVDKYR@T Inverter OC protection 14.7A device Type JT170G-KYE@T Compressor STD 1 OC protection 15.0A device Type STD 2 — OC protection device OC protection Fan motor 1.15A device...
Page 195: Ew*Q032Ba, 064Ba Module
List of Electrical and Functional Parts ESIE11-05 EW*Q032BA, 064BA Module Item Name Symbol Type JT1GCVDKYR@T Inverter OC protection 14.7A device Type JT170G-KYE@T Compressor STD 1 OC protection 15.0A device Type JT170G-KYE@T STD 2 OC protection 15.0A device OC protection Fan motor 1.15A device Electronic expansion valve coil (Main)
Page 196: Thermistor Resistance / Temperature Characteristics
ESIE11-05 Thermistor Resistance / Temperature Characteristics 2. Thermistor Resistance / Temperature Characteristics Hydrobox unit For suction air For liquid pipe For gas pipe Outdoor unit for fin thermistor R1T Outdoor unit For outdoor air For coil For suction pipe For Receiver gas pipe For Receiver outlet liquid pipe (k) TºC...
Page 197 Thermistor Resistance / Temperature Characteristics ESIE11-05 Outdoor unit thermistors for discharge pipe (R3T,  R31T R33T) (k) 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...
Page 198: Pressure Sensor
ESIE11-05 Pressure Sensor 3. Pressure Sensor = 1.38V -0.69 : Output Voltage [High Side] V = 0.57V -0.28 : Output Voltage [Low Side] V : High pressure (MPa) Detected Pressure : Low pressure (MPa) High Pressure (P Low Pressure (P Output Voltage (V (V3053) Service Procedure...
Page 199: Method Of Checking The Inverter's Power Transistors And Diode Modules
Method of Checking the Inverter’s Power Transistors and Diode Modules ESIE11-05 4. Method of Checking the Inverter’s Power Transistors and Diode Modules Checking failures in power semiconductors mounted on inverter PCB Check the power semiconductors mounted on the inverter PCB by the use of a multiple tester. <Items to be prepared>...
Page 200 ESIE11-05 Method of Checking the Inverter’s Power Transistors and Diode Modules 1. Power module checking When using the analog type of multiple When using the digital type of multiple tester, make measurement in resistance tester, make measurement in diode check measurement mode in the x1k...
Page 201: Options
Options ESIE11-05 5. Options EKRP1AHT 5.1.1 General This option is for:  Remote ON/OFF  Switching between cooling/heating (field settings needed)  Thermostat ON/OFF (field settings needed) The PCB is placed in the hydrobox. The switch box connects X80A (A4P or A6P) with X85A (A1P or A5P).
Page 202 ESIE11-05 Options 5.1.2 Field Settings [6-01] External room thermostat option:  Setting [6-01]=1 Room thermostat input 1= heating thermo ON(1)/OFF(0) Room thermostat input 2= cooling thermo ON(1)/OFF(0)  Setting [6-01]=2 Room thermostat input 1= thermo ON(1)/OFF(0) Room thermostat input 2= cooling(1)/heating(0) 5.1.3 Explanation Thermostat ON/ The unit still cycles water but can not start to cool/heat.
Page 203 Options ESIE11-05 5.1.4 Summary Service Procedure...
Page 204: Dta104A62
ESIE11-05 Options DTA104A62 5.2.1 General This option is for:  Demand operation  Low noise demand 5.2.2 Installation 1. Turn OFF the power to the unit. 2. Remove the front panel of the outdoor module(s). (If the module has two front panels (ie. one each on the left-hand side and right-hand site), remove the panel on the right-hand side only.) 3.
Page 205 Options ESIE11-05 Field wiring 1. Connect the power supply wiring from the adaptor to the adaptor power supply connector on the PCB of the outdoor module (as described in step 3 above). 2. Connect the transmission wiring to the F1 and F2 (OUT - OUT) terminal on the PCB. Use double-core wiring with no polarity.
Page 206 ESIE11-05 Options 5.2.3 PCB Names of parts and functions Power supply connector D1, D2 Connect to adaptor power supply connector on hydrobox unit or BS-unit. Switch SS2. Do not change this setting (OFF). Switch SS1. Do not change this setting (BOTH). Microcomputer normal monitor (HAP: GRN) This lamp is blinking when the microcomputer is operating normally.
Page 207 Options ESIE11-05 5.2.4 Field Setting How to set 1. Unit field setting demand control  Setting mode 1 Turn on low noise control like explained in the manual of the unit. in the field  Setting mode 2 Match low noise and demand addresses to the external control address. 2.
Page 208 ESIE11-05 Options To set the 5-bit Designate and set cool/heat addresses 0 to 31 for each mode switch unit. cool/heat address by DS1 and DS2 (example) (see “To set the outdoor modules demand address to number 7”) To set the outdoor modules demand address to number 7...
Page 209: Procedure For Software Upload Hydrobox
Procedure for Software Upload Hydrobox ESIE11-05 6. Procedure for Software Upload Hydrobox What Do You Need?  This instruction  Altherma programming cable with “write” extension (part nr: 999480P or 999482P)  Blue extension cable (part nr: 999485P; drawing nr: 4PW50601-1) ...
Page 210: Software Upload Procedure
ESIE11-05 Procedure for Software Upload Hydrobox Software Upload Procedure READ THIS INSTRUCTION CAREFULLY. FOLLOW THE INSTRUCTION STEP BY STEP. NOT FOLLOWING THIS INSTRUCTION MAY RESULT IN INCORRECT PROGRAMMING OF SOFTWARE. UNIT WILL NOT BE ABLE TO RUN IF SOFTWARE IS NOT INSTALLED CORRECTLY.
Page 211 Procedure for Software Upload Hydrobox ESIE11-05 Step 4 Connect serial port end of the cable to the laptop. Step 5 Close the front plate of the hydrobox unit. Step 6 Put power supply to the hydrobox unit by switching ON the main circuit breaker. Step 7 (Programming of software can now start.) Browse to the executable FlashSta.exe and double-click on the file “FlashSta.exe”:...
Page 212 ESIE11-05 Procedure for Software Upload Hydrobox 1. Refer to the needed file: click on “Refer”. 2. Browser menu is opened. Browse to the file YP0045V003.mot and click on “Open”. 3. The window “ID check” will be opened. In each field, please control 2 zero’s are filled in. 4.
Page 213 Procedure for Software Upload Hydrobox ESIE11-05 1. Click on “Setting”. The window “Set baudrate” will be opened. 1. Baud rate (bps) => Select 57600 2. Program_intervals (ms) => Select 40 3. Click on “OK”. After clicking on “OK”, the window “M16C Flash Start” will be opened again. Now software needs to be uploaded.
Page 214 ESIE11-05 Procedure for Software Upload Hydrobox 1. Click on “E.P.R.” (= Erase – Program – Read check) 2. The program will request if previous software may be erased: “ERASE?” Click on “OK”. Following steps will happen automatically. Please wait till the program has ended to erase the old software and reprogramming the new one.
Page 215 Procedure for Software Upload Hydrobox ESIE11-05 After erasing and reprogramming the software, the program will check if the software has been written correctly (window “Read check”). The progress can also be checked. If the check is finished, a window “M16C Flash Start” will appear. 1.
Page 216 ESIE11-05 Procedure for Software Upload Hydrobox Step 12 Add sticker (local supply) with new software version on the hydrobox PCB as indicated below: OLD SOFTWARE: EB08014(B) --> NEW SOFTWARE: EB08014(C) Step 13 Close the hydrobox unit. Step 14 Reconnect the power supply and start up the unit again. Service Procedure...
Page 217 Procedure for Software Upload Hydrobox ESIE11-05 Service Procedure...
Page 218: Part 5 - Commissioning And Test Run
ESIE11-05 Part 5 Commissioning and Test 1. Test Run....................208 1.1 Installation Process ................208 1.2 Procedure and Outline .................209 1.3 Operation when Power is Turned On ...........212 Commissioning and Test Run...
Page 219: Test Run
Test Run ESIE11-05 1. Test Run Installation Process Below figure shows the installation process. Install in the order of the steps shown. Selection of Location Inspecting and Handling the Unit Placing the Unit Field Wiring Pipe Insulation Checking of Device and Installation Conditions Operations which require the power to be turned on.
Page 220: Procedure And Outline
ESIE11-05 Test Run Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 1.2.1 Check Work Prior to Turn Power Supply On Is the wiring performed as specified? Check the below items. Is the designated wire used? •...
Page 221 Test Run ESIE11-05 1.2.2 Turn Power On Be sure to turn the power on 6 hours before starting operation to protect Turn outdoor unit and indoor compressors. (to power on crankcase heater) unit power on. Check to be sure the transmission is normal. Check the LED display of the The transmission is normal if the LEDs display conditions as shown in outdoor unit PCB.
Page 222 ESIE11-05 Test Run 1.2.3 Onsite Settings Notes In the case of a EW*Q040BA, EW*Q050BA, EW*Q064BA, all onsite settings should be made on the master unit. Settings made on sub units are invalid. The outdoor unit to which is next to the hydrobox is the master unit, and the other unit is the slave.
Page 223: Operation When Power Is Turned On
Test Run ESIE11-05 Operation when Power is Turned On 1.3.1 When Turning On Power First Time The unit cannot be run for up to 12 minutes to automatically set the master power and address. Status Outdoor unit Test lamp H2P ..Blinks Can also be set during operation described above.
Page 224: Part 6 - Maintenance
ESIE11-05 Part 6 Maintenance 1. Maintenance of the Main Parts ............215 Maintenance...
Page 225 ESIE11-05 Precautions Correct choices and decisions have to be made before any maintenance is done. Opening the refrigerant circuit may cause a loss of refrigerant or lead to system contamination.  Avoid high gas concentrations. While the heavy concentration of the refrigerant gas will remain on the floor level, good ventilation is a must.
Page 226: Maintenance Of The Main Parts
ESIE11-05 Maintenance of the Main Parts 1. Maintenance of the Main Parts Preventive A program of scheduled maintenance should be set up and followed. The items mentioned are to be used as a guide and must be used in combination with sound electrical and refrigeration maintenance workmanship to ensure trouble free operation and performance.
Page 227 ESIE11-05 Index Freeze Prevention ..........62 Functional Parts Layout .......... 9 Emergency Operation ..........58 EWYQ016BA ............ 9 Error Codes ............110 EWYQ021BA, 025BA, 040BA Module, A1 ..............110 050BA Module ........10 A6 ..............111 EWYQ032BA, 064BA Module ......11 A9 ..............112 AE ..............114 AJ ..............115 List of Electrical and Functional Parts ....
Page 228 ESIE11-05 Field Wiring ............38 Hydrobox Wiring ..........25 Wiring Diagram - Three Phase (3N~) ....28 Wiring Outdoor ..........29 Index...

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