Daikin LXE10E100 Service Manual
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Daikin LXE10E100 Service Manual

Daikin LXE10E100 Service Manual

Marine type container refrigeration unit
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Marine type
Container Refrigeration Unit
Service Manual
DAIKIN CONTAINER
LXE10E100 or later
LXE10E-A
(DECOSⅢe)
TR 08-03

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Summary of Contents for Daikin LXE10E100

  • Page 1 Marine type Container Refrigeration Unit Service Manual DAIKIN CONTAINER LXE10E100 or later LXE10E-A (DECOSⅢe) TR 08-03...
  • Page 2 Please read the contents of this manual prior to operation of the unit. This booklet will provide you with the minimum necessary information required to operate the Daikin refrigerated unit LXE10E100 or later equipped with the new controller DECOSⅢe. It covers all of the unit's...

  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS 3.5.2 Function..........3-30 • Danger ..............4 3.5.3 Battery check........3-30 • Warning..............5 3.5.4 Battery replacement • Caution..............6 (Rechargeable battery) ......3-31 1. INTRODUCTION..........1-1 3.6 Information interchange with personal computer...3-36 1.1 Operation range ..........1-1 3.6.1 Data logging .........3-36 1.2 Basic names of components ......1-1 3.7 Controller replacement and software upgrade ...3-37...
  • Page 4 CONTENTS 5.1.2 Rechargeable battery type .....5-3 6.5.5 Automatic Back up for supply/return air 5.2 USDA transportation ........5-4 temperature sensors ......6-26 5.2.1 Type of USDA sensor/receptacle ...5-4 7. APPENDIX............7-1 5.2.2 Initial setting ...........5-4 7.1 Standard tightening torques for bolts ....7-1 5.2.3 USDA sensor calibration ......5-4...

  • Page 5: Safety Precautions

    SAFETY PRECAUTIONS Always observe the following points before operating or inspecting a unit. DANGER Always shut off the main power supply of the facility before disconnecting the power plug. Always turn off the main power supply of the facility before inspecting the interior of the control box.

  • Page 6: Warning

    WARNING Do not touch the condenser fan while power to the unit is ON. Before removing the condenser fan cover, turn off the circuit breaker and disconnect the power plug. During air-cooled operation : Condenser fan may start and stop automatically for the refrigerant high pressure control.

  • Page 7: Caution

    CAUTION Before starting the unit, run the generator. Securely close the control box cover. Otherwise, it will allow water entry. Control box cover Quick-lock lever Temperature Recorder (OPTION) Temperature recorder box cover...
  • Page 8 CAUTION Wash the refrigeration unit with fresh water at PTI. 1. Carefully flush the external condenser with fresh water to remove the salt that sticks to it. 2. Corrosive gases generated from the cargo may corrode the copper pipes of the internal evaporator. Therefore, wrap up the cargo properly to prevent such corrosion.
  • Page 9 If any other refrigerant not specified is charged, it may cause problems with the unit. Use only Daikin specified refrigerant oil (IDEMITSU, Daphne Hermetic Oil FVC46D). If any other refrigerating machine oil not specified is charged, it may cause problems with the unit.
  • Page 10 CLASS 1 PRODUCT SPECIFIED BY THE LAW CONCERNING THE RECOVERY AND DESTRUCTION OF FLUOROCARBONS OF FLUOROCARBONS HFC IS USED FOR THIS PRODUCT AS A REFRIGERANT. (1) EMISSION OF FLUOROCARBONS INTO THE ATOMOSPHERE WITHOUT PERMISSION IS PROHIBITED. (2) RECOVERY OF FLUOROCARBONS IS MANDATORY WHEN SCRAPPING AND SERVICING THIS PRODUCT.

  • Page 11: Introduction

    1. INTRODUCTION 1.1 Operation range Use the units within the following range. Item Operation range External temperature range -30˚C to +50˚C (-22˚F to + 122˚F) Internal temperature range -30˚C to +30˚C (-22˚F to + 86˚F) 50Hz: 380V/400V/415V, 60Hz: 440V/460V Voltage Voltage fluctuation rate should be within ±10%...

  • Page 12: Basic Operation Of Refrigeration Unit

    1.3 Basic operation of refrigeration unit 1.3.1 Starting operation (1) Connect the power plug to the power supply. Insert the plug q suited to the power source voltage, and fasten the plug firmly. (2) Turn on circuit breaker w after checking that the power supply switch is turned on (Outside of the unit).

  • Page 13: Check Items During Operation

    1.3.2 Check items during operation Check items(precautions) Method of check 1. Check the compressor, fan, pipes, etc. for abnormal Visual and sound check noise and vibration. Visual check by using the moisture indicator 2. Check the refrigerant for shortage.

  • Page 14: Adjust The Ventilation

    1.3.4 Adjust the ventilation CAUTION Adjust the opening of the ventilation !0 according to the cargo. Keep the ventilation closed when ventilation is not necessary or during transportation of the frozen cargo. Set the arrow mark of the handle to "CLOSE"...

  • Page 15: General Description

    2. GENERAL DESCRIPTION 2.1 Main specifications Model LXE10E100 or later Item Condenser cooling system Air cooled type Controller DECOS3e Power supply AC 3-phase 380V/400V/415V 50Hz, 440V/460V 60Hz Compressor Full hermetic scroll type (Motor output: 5.5kW) Evaporator Cross fin coil type...

  • Page 16: Names Of Components

    2.2 Names of components 2.2.1 Outside ●LXE10E Refer to the next page for detail of solenoid valves 2 2 2 1 2 0 1 7 1 6 Refer to page 2-4 for detail of compressor and refrigerant control devices...
  • Page 17 ●LXE10E · Detail of solenoid valves (option) [Valve] BSV :Discharge gas bypass Solenoid Valve DSV :Defrost Solenoid Valve DPR :Discharge Pressure Regulator Valve :Electronic Expantion Valve ESV :Economizer Solenoid Valve HSV :Hot gas Solenoid Valve ISV :Injection Solenoid Valve...
  • Page 18 · Detail of compressor and refrigerant control devices DCHS Liquid Moisture Indicator Drier Receiver AMBS Sensor Valve DPR SMV LSV Service Port [Sensor] [Service port] q Low pressure AMBS: Ambient temperature sensor For operation pressure check w High pressure...

  • Page 19: Inside

    2.2.2 Inside ●LXE10E USDA receptacle PC port receptacle q Evaporator fan motor (EFM) u USDA receptacle [Optional] w Evaporator Lateral and rear type depending on the e Supply air temperature sensor (SS) models i PC port receptacle Data recorder supply air temperature sensor (DSS)
  • Page 20 · Inside Detail HuS (optional) RS/DRS/RRS Evaporator Drain Pan Heater ※Reheater for Dehumidification Control (optional) [Sensor] DRS:Return Air Temperature Sensor for Datacorder DSS:Supply Air Temperature Sensor for Datacorder EIS :Evaporator Inlet Temperature Sensor EOS:Evaporator Outlet Temperature Sensor HuS :Humidity Sensor (Optional)

  • Page 21: Control Box

    2.2.3 Control box ●Operation panel ●Inside of the control box (Outside of the control box) ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮ ⑯ ① ⑧ ② ⑦ ⑥ ⑤ ③ Front ⑳ ⑲ ⑰ ④ ⑱ Rear q Controller operation panel...

  • Page 22: Circuit Breaker

    · Control box Inside detail MODEM CONTROLLER (Modem located inward) (optional) (DECOS3e) PCC1 PCC2 BATTERY Tr1(EC5 located inward) (9V dry cell or rechargeable battery) (400V→24V, 13V) [Control Box] BATTERY :Back-up Battery :Circuit Breaker :Magnetic Contactor, Compressor :PT/CT Board :Magnetic Contactor, Evaporator Fan Motor, High Speed...
  • Page 23 · Control box Inside detail EC1 (CPU board) Battery circuit board For sensor extension LED101 (Red) HuS (optional) LPT, HPT EC1 (CPU board) CN44 CN46 CN42 LED1 (Green) (I/O board) (optional) (PT/CT board) CN43 EC3 (DISPLAY board) CN47 CTS/USDA DRS, EIS, EOS,...
  • Page 24 · Short Circuit Connector for emergency operation Controller Short circuit connector for emergency operation SCC1-2 (Red) SCC3 (White) SCC1-1 (Blue) Short circuit connector for emergency operation Connector for Connector for positive phase reversed phase Please refer to section 6.5.2 for details about connection.

  • Page 25: Set Point Of Functional Parts And Protection Devices

    2.3 Set point of functional parts and protection devices Device name Actuation Set point Detection method Symbol High-pressure switch 2400kPa (24.47kg/cm High-pressure switch 1900kPa (19.37kg/cm Chilled mode –9.9°C to +30.0°C Set point temperature Mode selection (+14.1°F to +86.0°F) Frozen mode –30.0°C to –10.0°C...

  • Page 26: Operating Pressure And Running Current

    2.4 Operating pressure and running current ●Chilled mode Inside : 0°C (32°F) Power supply : 415V / 50Hz Total current (kPa) (kg/cm) 2000 High pressure 1500 1000 (kPa) (kg/cm Low pressure –100 –76B Hg (˚C) 104 113 122) ( F ) Ambient temperature ●Fan motor current...
  • Page 27 ●Chilled mode Inside : 0°C (32°F) Power supply : 400V / 60Hz Total current (kPa) (kg/cm) 2000 High pressure 1500 1000 (kPa) (kg/cm Low pressure –100 –76B Hg (˚C) 104 113 122) ( F ) Ambient temperature ●Fan motor current...
  • Page 28 ●Frozen mode Inside: –18˚C (–0.4˚F) Power supply: 415V, 50Hz Total current (kPa) (kg/cm 2000 High pressure 1500 1000 (kPa) (kg/cm Low pressure –100 –76B Hg (˚C) 104 113 122) ( F ) Ambient temperature ˚C (˚F) ●Fan motor current...
  • Page 29 ●Frozen mode Inside: –18˚C (–0.4˚F) Power supply: 400V, 60Hz Total current (kPa) (kg/cm 2000 High pressure 1500 1000 (kPa) (kg/cm Low pressure –100 –76B Hg (˚C) 104 113 122) ( F ) Ambient temperature ˚C (˚F) ●Fan motor current...

  • Page 30: Operation Modes And Control

    2.5 Operation modes and control There are two main types of operation modes: the cargo cooling control mode and the unit inspection mode. The cargo cooling control mode is explained in this section. ※For the unit inspection mode, refer to section 3.9.

  • Page 31: Frozen Mode

    2.5.1 Frozen mode Control state transition and common control Thermostat ON (Pull-down range) ●Compressor Running ●Evaporator fan Low speed (L) RS > SP + 1.0˚C Continuous compressor running for ≤ ≤ 2 minutes or more and RS SP Thermostat OFF ●Compressor...
  • Page 32 (1) Set point temperature and control sensor When the set point temperature (referred to as SP hereafter) is –10.0˚C(+14.0˚F) or lower, the compressor is operated ON and OFF, in response to return air temperature. (2) Control qWhen the control temperature reaches SP (point A), the compressor and condenser fan are turned off.

  • Page 33: Chilled Mode

    2.5.2 Chilled mode Control state transition and common control START SS≧SP+1.5˚C SS<SP+1.5˚C Pull-down Heat-up SS<SP+1.5˚C RS≧SP+1.0˚C Without dehumidification: RS≧SP+1.0˚C SS>SP+5.0˚C With dehumidification RS≧SP+2.0˚C Capacity control (SS≦SP–3.0˚C SS≧SP+1.0˚C and 3-minutes elapse) and 3-minutes SS≦SP–0.5˚C or ( and 30-minutes elapse) elapse Overcool protection SS≦SP–0.5˚C...
  • Page 34 (1) Set point temperature and control sensor If the set point temperature is –9.9˚C (–14.1˚F) or more, the suction modulating valve is controlled by the supply air temperature to adjust the freezing capacity. (2) Control (a) Pull-down operation Pull-down operation is carried out with fully opened suction modulating valve when the control temperature (SS) is higher than the set point temperature for 1.5˚C or more (point q).

  • Page 35: Defrosting Mode

    2.5.3 Defrosting mode Start defrosting ●Defrost lamp (red) ON ●Pump down Defrosting range ●Compressor ●Evaporator fan ●Condenser fan ON/OFF ●Defrosting solenoid valve ON ●Hot gas solenoid valve ON Is terminating condition OK? Defrosting lamp (red) OFF Evaporator fan On after delay of 60 seconds...
  • Page 36 Defrosting operation (1) Defrosting system A hot-gas defrost system is adopted in the units; i.e. the high temperature and high pressure refrigerant (hot gas) from the compressor is sent to the evaporator and drain pan for defrosting. Since the evaporator is heated directly by the hot gas (refrigerant), defrosting can be performed effectively.
  • Page 37 (4) Defrosting termination Defrosting will be terminated when any one of the following three conditions is satisfied. qThe below figure is satisfied during defrost. Operation mode Status before defrost Termination INRANGE EOS≧30.0˚C Frozen mode Out of RANGE EOS≧30.0˚C＆RS≧15˚C＆DRS≧15˚C INRANGE...

  • Page 38: Dehumidification (Optional)

    2.5.4 Dehumidification (Optional) The unit have dehumidification control by a reheat coil, which is fitted under the evaporator coil. To execute dehumidification, controller setting is required. (Refer to Page 3-12) In dehumidification, the Reheat Solenoid Valve (RSV) opens to give high temperuture and high pressurized refrigerant to reheat coil.

  • Page 39: Common Control

    2.5.5 Common control The following are controlled in different operation modes. (For the details, refer to the following pages.) Operation mode Control name Control content Frozen Chilled Defrost Dehumidification The compressor is operated on and off to A Compressor ON/OFF control ○...
  • Page 40 Common control A : Compressor ON/OFF control When the control temperature reaches the set temperature or lower, the compressor is stopped. When the control temperature rises and becomes higher than the [set point temperature +1.0˚C], the compressor runs again.
  • Page 41 • By condenser fan control When the ambient temperature is low during the air-cooled operation, the condenser pressure (high pressure) will decrease. Accordingly, the low pressure will decrease. In order to prevent this situation, when the high pressure becomes set point or lower, the condenser fan stops to prevent the high pressure from excess dropping.
  • Page 42 I : Capacity control In the chilled mode operation, adjusting cooling capacity makes the supply air temperature stable at the set point temperature (SP). The capacity control is executed by adjusting the opening of suction modulating valve (SMV) between 3 to 100 %.

  • Page 43: Electronic Controller

    3. ELECTRONIC CONTROLLER 3.1 Functions of DECOSⅢd and DECOSⅢe Items changed DecosⅢe DecosⅢd Initial setting at the time of Required (Input using the Not required panel) replacement Download time of trip data (If the whole memory capacity of the Approx.

  • Page 44: Basic Operation Of Electronic Controller

    –3 –2 –1 DECOS DAIKIN ELECTRONICCONTAINER OPERATION SYSTEM Sheet key q SUPPLY LED (Lights when "supply air temperature" is indicated.) u IN RANGE LED (Lights when the control temperature is in range.) w RETURN LED (Lights when "return air temperature" is indicated.) i DE-HUMID.LED...
  • Page 45 Function of operation key ●UNIT ON/OFF key ●UP key UNIT To select the item to be set in To start or to stop the unit ON/OFF the selected mode. operation. The controller has a memory ●DOWN key function. DOWN...
  • Page 46 DISPLAY q Indicate the temperature data required to be converted into "˚F" C ˚ on the LED or the LCD. F ˚ DISPLAY C ˚ w Press the key, then the temperature data displayed in "˚C" F ˚ is converted into "˚F" for one minute.

  • Page 47: Operation Procedure

    3.3 Operation procedure 3.3.1 Operation procedure flow chart ※3 Battery mode Power off No key operation for 30 sec. Circuit Breaker ON Circuit Breaker OFF after setting change Unit off （  OFF when no setting change）  I/O ON All Lighting (for 3 sec.)
  • Page 48 ※1. Current indication mode (indication of operation conditions) ●Supply air temperature (SS) Indicates the unit operation conditions. ●Return air temperature (RS) Page 3-8 ●Defrost interval ●Alarm ●Setting point humidity and humidity (optional) ※2. Operation setting mode ●Temperature settings Settings for cargo transportation Page 3-9 ●Defrost interval settings...
  • Page 49 ※8. Alarm record scroll function ●Alarm indication Alarm record can be indicated in order Page 3-18 (up to 7 days) (scroll indication) from the latest data. ※9. PTI record scroll function Page 3-19 Last 3 PTI results can be displayed.

  • Page 50: Mode Operation Procedure

    3.3.2 Mode operation procedure 1. CURRENT (Operation state) INDICATION MODE Supply air temperature (SS), return air temperature (RS), defrosting interval, currently existing alarm, set point humidity, and humidity are indicated. Turn on the circuit breaker and the UNIT ON/OFF key after turning the...

  • Page 51: Operation Setting Mode

    2. OPERATION SETTING MODE Control temperature, defrosting interval, and control humidity (optional) can be set. To change to the OPERATION SETTING MODE, press the key while Power off the unit is in the CURRENT INDICATION MODE. Circuit Breaker ON...

  • Page 52: Battery Mode

    3. BATTERY MODE When commercial power is not available, the following functions are available by using the built-in wake up battery. • Indication of inside supply air temperature (SS) and return air temperature (RS) • Setting for control temperature, control humidity and defrost interval To change to the BATTERY MODE, press the while the unit is in the POWER OFF STATUS.

  • Page 53: Mode Operation

    4. MODE OPERATION MODE Press the key in current indication mode to go to MODE operation. In mode operation, the following settings/operations are available. 1. Generator setting Total power consumption can be reduced to desired Max setting for the specific Power off generators set or power facilities.

  • Page 54: Led Display Light-Off Mode

    5. LED display LIGHT-OFF MODE The controller LED display is turned off with this mode. ※ Activation of the panel (LED) lighting off mode. To activate the panel (LED) lighting off mode, set the LED lighting off function "dISP" in "11. Basic setting mode"...

  • Page 55: Sensor Indication Mode

    6. SENSOR INDICATION MODE Each sensor value and the opening of the suction modulating valve (SMV) and the electronic expansion valve (EV) can be checked. The following items are shown. High pressure (HPT), low pressure (LPT), voltage (PT1), total current (CT1), compressor current (CT2),...
  • Page 56 6. SENSOR INDICATION MODE (Continued from the previous page) LED: The control temperature is displayed. EVAPORATOR INLET TEMPERATURE SENSOR LCD: The evaporator inlet temperature is displayed. (EIS) The display reads: "EI C". (In ˚C or ˚F.) LED: The control temperature is displayed.
  • Page 57 6. SENSOR INDICATION MODE (Continued from the previous page) LED: The control temperature is displayed. CARGO TEMPERATURE SENSOR LCD: The pulp temperature is displayed. (CTS) The display reads: "CS C". (optional) (In ˚C or ˚F.) LED: The control temperature is displayed.

  • Page 58: Temperature Record Scroll Mode

    7. TEMPERATURE RECORD SCROLL MODE The records of the control sensor are displayed successively (one record per second) starting from the latest data. (A maximum of 7 days) <Mode selection procedure> Power off Circuit Breaker ON Unit off I/O ON All Lighting (for 3 sec.)
  • Page 59 ● Example of TEMPERATURE RECORD SCROLL INDICATION MODE CAUTION ※ It is assumed that the control temperature is the supply air temperature (SS) and the The displayed temperature is not the logging interval is 1 hour, and the current current instantaneous value but an average date and time are June 27, 2008, 14:00.

  • Page 60: Alarm Record Scroll Mode

    8. ALARM RECORD SCROLL MODE The records of alarms are displayed successively (one record per second) starting from the latest one. (Alarms for a maximum of 7 days) <Mode selection procedure> Power off Circuit Breaker ON Unit off I/O ON All Lighting (for 3 sec.)

  • Page 61: Pti Record Scroll Mode

    9. PTI RECORD SCROLL MODE The record is shown in sequence (scroll) starting with the latest data. <Mode selection procedure> Power off Circuit Breaker ON Unit off I/O ON All Lighting (for 3 sec.) Preparation (for 18 sec.) ※9 PTI Record ※6 Sensor...

  • Page 62: Optional Function Setting Mode

    10. OPTIONAL FUNCTION SETTING MODE <Key operation to enter/exit> Power off Circuit Breaker ON Circuit Breaker OFF Unit off after setting change （  OFF when no setting changed）  I/O ON All Lighting (for 3 sec.) for 3 sec. for 3 sec.

  • Page 63: Basic Function Setting Mode

    11. BASIC FUNCTION SETTING MODE <Key operation to enter/exit> Power off Circuit Breaker ON Circuit Breaker OFF Unit off after setting change （  OFF when no setting changed）  I/O ON All Lighting (for 3 sec.) for 3 sec. for 3 sec.
  • Page 64 11. BASIC FUNCTION SETTING MODE (Continued from the previous page) Make selection using the key and ON : Turning-off function available OFF: Turning-off function not available key. Press the key to determine the selection. Setting LED indicator lamp turning-off function available diSP Note: If turned "ON", the LED display...

  • Page 65: Optional Condition Setting Mode

    12. OPTIONAL CONDITION SETTING MODE Key operation to enter/exit < > Power off Circuit Breaker ON Circuit Breaker OFF after setting change Unit off （  OFF when no setting changed）  I/O ON All Lighting (for 3 sec.) for 3 sec.
  • Page 66 12. OPTIONAL CONDITION SETTING MODE (Continued from the previous page) The time at which the H003 code is Make selection using the generated is set. 1, 2, 3, 4, 5, 10 key. Press the key to H003 code generation H003 (The unit is hour.)

  • Page 67: Input Data Mode

    13. INPUT DATA MODE Each of the following item data can be input. Container I.D. (No.) input and controller and controller time <Key operation to enter/exit> Power off Circuit Breaker ON Circuit Breaker OFF after setting change Unit off （  OFF when no setting changed） ...

  • Page 68: Controller Software Download Mode

    13. INPUT DATA MODE (Continued from the previous page) Press the key to go to the ── SET TIME subsequent "Year" setting screen. The value can be increased or decreased by using the key and 20XX YEAR key. Press the key to (The A.D.

  • Page 69: Alarm Display And Back-Up Function

    3.4 Alarm display and back-up function 3.4.1 Alarm list Alarm Alarm code Alarm content Action with alarm grouping F101 After powered on, if HPS starts to operate before the compressor Unit stops starts. Or the compressor fails to start 5 times.

  • Page 70: Back-Up Operation At Sensor Malfunction

    3.4.2 Back-up operation at sensor malfunction Sensor malfunction Mode Back-up content Supply air temperature Chilled The same control is executed by using DSS. sensor In case of DSS malfunction, [RS–2.0˚C] is used for control. When DSS and RS are faulty, the unit should be stopped.
  • Page 71 ●Back-up for temperature sensors (EIS, EOS, SGS) at frozen mode (superheat control) Evaporator inlet sensor Evaporator outlet sensor Compressor suction gas sensor Back-up operation Normal Normal Normal superheat control Normal Normal Abnormal superheat control Liquid refrigerant back prevention Normal...

  • Page 72: Back Up Battery

    The battery is attached to the lower part of the controller. DRY Battery: 9V block battery. (This can be purchased locally.) Rechargeable battery: Daikin genuine product (Part NO. 1890491) 3.5.2 Function This battery is used without main power supply for the following functions.

  • Page 73: Battery Replacement (Rechargeable Battery)

    Check the remaining voltage on the LCD in the battery mode after turning OFF the sensor display mode or the breaker. In case the unit is connected to the commercial power supply · When the battery is being recharged, the voltage is indicated 0.5 to 1.5V higher because of the power supply.
  • Page 74 (5) Replace the rechargeable battery with a new one. (Ensure that the battery of the specified type is used.) (6) Fix rechargeable battery u with Velcro tape y used for fixing the battery. (7) Securely attach the connector to connector r on the CPU board. (Refer to Note 1.) (8) Fix the harness of rechargeable battery u and other harnesses to the controller unit with binding band q.
  • Page 75 In addition, the used batteries, please send to our certified stores or the satellite parts centers as follows, Please send batteries replaced in EU member nations to the following address. Daikin Refer Servise and Engineering Office Fascination Boulevard 562 2909 VA Capelle aan den IJssel The NetherIands...
  • Page 76 EXCHANGE METHOD OF RECHARGEBLE BATTERIES: 1. Peel the majic tape. 2. Take out the rechageble battery from holder. 3. Insert the rechageble battery to holder. 4. Fix the rechargeble battery with majic tape. Completion 3-34...
  • Page 77 EXCHANGE METHOD OF U2 SIZE BATTERIES: 1. Peel the majic tape. 2. Take out the U2 size battery from holder. 3. Insert the U2 size battery to holder. 4. Fix the U2 size battery with majic tape. U2 size...

  • Page 78: Information Interchange With Personal Computer

    3.6 Information interchange with personal computer The electronic controller DECOS 3e has a internal memory function to record the set point temperature, inside temperature, operation mode, occurrence alarm and the report of automatic PTI during transportation in addition to the normal operation control.

  • Page 79: Controller Replacement And Software Upgrade

    3.7 Controller replacement and software upgrade 3.7.1 Controller replacement <Replacement procedure for the controller> ¡Always turn off the main power supply to the facility before carrying out the following procedures. (1) Remove binding band q fixing each harness to the controller unit.
  • Page 80 (9) Replace the old controller with the new one. Tilt the controller unit to take it out from or insert it into the control box. (Refer to the figure below.) →Prevent the corner of the controller from damaging the harness or other parts.
  • Page 81 (16) Attach the round solderless terminal to the power supply I/O board. →Attach the terminal by checking the terminal number of the mark tube and the terminal number of silk print indicated on the power supply I/O board. (Refer to the figure below.)
  • Page 82 <Wiring completed after replacement> Wire saddle t Wire saddle r Binding band w×2 Binding band q×5 3-40...

  • Page 83: Installation Of Software Of Latest Version (Version Upgrade)

    After the replacement with the spare parts controller, the software needs to be upgraded. Download the software of the latest version and the tool for version upgrade (only once) from the DAIKIN HOME PAGE by following the procedure shown below.

  • Page 84: Pti (Pre-Trip Inspection) And Periodic Inspection

    3.8 PTI (Pre-Trip Inspection) AND PERIODIC INSPECTION The controller (DECOS 3e) has the automatic PTI function, which consists of three process of SHORT PTI (referred to as S.PTI hereafter), FULL PTI (referred to as F.PTI hereafter) and MANUAL CHECK (referred to as M.CHECK hereafter)

  • Page 85: Inspection Item

    3.8.1 Inspection item The periodic inspection and adjustment of components (if required) is recommended to ensure continued successful operation. The following table shows an example of the inspection plan. Inspection item Inspection content year 4 year 8 year Inspection for physical damage...
  • Page 86 Inspection item Inspection content year 4 year 8 year Dryer replacement Function inspection and replacement of liquid moisture indicator Conditions of fasteners on the refrigerant pipes and gauge pipes Condition of thermal insulation of refrigerant pipe Evaporator coil cleaning...
  • Page 87 Inspection item Inspection content year year year 1) Sensor error inspection 2) Chart drive inspection Temperature recorder 3) Recording operation inspection inspection 4) Loose terminal 5) Chart drive dry battery inspection 6) Check of pen lifting battery 1) Check of wake-up battery...

  • Page 88: Automatic Pti (Pre-Trip Inspection)

    3.8.2 Automatic PTI (Pre-Trip Inspection) ● The automatic PTI function is provided so as to ensure correct inspection and to shorten inspection time. (Refer to section 3.2 for operation of controller) (1) Appearance inspection of unit Physical damage Casing insulation through hole area...

  • Page 89: Pti Selection Mode

    3.8.2.1 PTI selection mode The test mode of FULL (F.PTI), SHORT PTI (S.PTI), and MANUAL CHECK (M.CHECK) can be selected. <Mode selection procedure> Power off Circuit Breaker ON Circuit Breaker OFF Unit off after setting change （  OFF when no setting changed） ...

  • Page 90: Short Pti (S.pti)

    ● Automatic PTI enable conditions Water cooled Air cooled Ambient temperature condition operation operation –10˚C < Ambient temperature ≦ 43˚C ✕ S. PTI When the ambient temperature is above 43˚C or below –10˚C, the correct judgment may not be possible.

  • Page 91: Full Pti (F.pti)

    3.8.2.3 Full PTI (F.PTI) F.PTI consists of S.PTI and operation tests. ●Step display and contents (step P00 to P32 are as same as S.PTI) Step Content ●F.PTI flow chart Check on pull-down to 0˚C Check on controllability of chilled UNIT ON/OFF key: on mode operation.

  • Page 92: Alarm List During Pti (Pre-Trip Inspection)

    3.8.2.4 Alarm list during PTI (Pre-Trip Inspection) The alarm during automatic PTI are concerned with PTI inspection items in addition to those during normal operation. The alarms at automatic PTI are indicated in J ※※※., being separated from those during normal operation.

  • Page 93: Manual Check (M.check)

    3.8.2.5 Manual check (M.CHECK) In M. CHECK, each functional component is inspected. However, unlike in S.PTI and F.PTI, there is no alarm indication etc. <Inspection items> Compressor operation time, evaporator fan high-speed operation current, evaporator fan low-speed operation current, condenser fan operation current, battery lifespan (number of years or months), horsepower indication, time elapsed since starting the trip, operation time of evaporator fans 1 &...
  • Page 94 Press the key to display the accumulated ── operation time of evaporator fan 2 in the LED. Accumulated operation time Operation time = Number in LED × 10 Evaporator fan 2 [hours] accumulated of evaporation fan 2 EF2 ×10H...

  • Page 95: Chartless Function

    3.9 Chartless function The controller provides the temperature recorder function. In the case of recorder-equipped units, checking for the temperature on the chart recorder will provide ease of monitoring the state of tripping. Since recent controllers are available for long and accurate temperature recording, non-recorder- equipped units have been increasingly used.
  • Page 96 ●Displaying temperature change trend: The temperature change trend is shown in the leftmost LCD. However, this display is shown only when all segments are in the same temperature range. Trend indication Condition Temperature rise trend The latest the oldest –...

  • Page 97: P Code (Pull Down Time Indication)

    3.9.2 P code (Pull down time indication) The control temperature and pull-down time are indicated alternately during pull-down operation. When the pull-down is completed, the P code will be deleted. P001: Lasts the pull-down for 1 hour. P002: 2 houes passed since pull-down started.

  • Page 98: Chartless Code Display Function

    3.9.3 Chartless code display function The chartless code represents the coded inside air temperature. Select "ON" of the chartless code setting to indicate the code on the LED. For the chartless code setting, refer to the "OPTIONAL CONDITION SETTING MODE" on the page 3-23〜3-24.

  • Page 99: H-Code

    3.9.3.2 H-code H001 =The alarm is displayed when the control temperature does not decrease by 3˚C or more every 4 hours during pull-down operation. Inside If "t" is smaller than 3˚C, code "H001" appears. Temperature ※ This criteria (3˚C) can be adjusted from 1, 2, 5 or 10˚C.
  • Page 100 H005 =The alarm is displayed when the control air temperature is out of "in-range" and defrosting was performed three times while the control air temperature does not return to in-range. SP+1 30min Figure5 Out range timer H006 =Alarm is displayed when the temperature difference between the control sensor and record sensor is 2˚C for 1 hour, or more.

  • Page 101: D-Code

    3.9.3.3 d-code: The d-code shows the current operation state of the unit. Example d101: • This code "d101" will be displayed when the total time above set point +1˚C reaches 1 hour. The code "d102" will then be displayed when the total time above set point +1˚C reaches 2 hours.

  • Page 102: Communication Modem

    ¡Manual defrosting initiation ¡Header information changing (*1) According to the relationship among slave modem, Master modem and controller, items which can monitor and/or command are different. Please contact DAIKIN sales office if you have a specific item to monitor/command. 3-60...

  • Page 103: Service And Maintenance

    4. SERVICE AND MAINTENANCE CAUTION 1. Use the pressure indicating function 4.1 Maintenance service of the controller to check the working 4.1.1 Collection of refrigerant pressure as much as possible qWhen release the refrigerant from the instead of using the gauge manifold...
  • Page 104 (2) Removal of gauge manifold ●Location of service ports on high pressure Turn the valve handle of coupler and low pressure sides counterclockwise (the push pin is pulled Service ports on high pressure and low up). Slide the sleeve upward while fixing the...

  • Page 105: Automatic Pump Down

    4.1.3 Automatic pump down An automatic pump down system is applied to the unit to prevent the unit from extra decrease of low pressure due to pump down operation or burning of scroll compressor due to a close stop valve.
  • Page 106 (2) Automatic pump down operation Once the automatic pump down is started, all of the service works from refrigerant collection into the receiver, to the equalizing in suction piping system, can be executed automatically. When "Good" is displayed, service works such as replacing the dryer, etc. can be conducted without any other operation.

  • Page 107: Refrigerant Recovery And Charge

    4.1.4 Refrigerant Recovery and Charge Evaporator service port Condenser Check valve Drier Receiver Compressor service port Service work Service port Remarks High pressure Pressure Check Low pressure Recover refrigerant from port t after operating Automatic Pump- [1] Refrigerant Down first.
  • Page 108 (1) Operation Pressure Check (3) Refrigerant Recovery Check high pressure from the service port w qOperate Automatic Pump Dpwn. wRecover refrigerant from port t. on the compressor discharge. Check low pressure from the service port q on the compressor suction.
  • Page 109 (a) Vacuum dehydrating 2.Replace the manifold gauge hose to port e and add the liquid refrigerant. After recovering the refrigerant, replace the filter drier and connect the vacuum Then if it reached to the specified pump to the service ports r and t at the...

  • Page 110: Main Components And Maintenance

    Flare nut for 4.2 Main components and injection piping maintenance Discharge flange Flare nut for gauge 4.2.1 Scroll compressor piping The compressor is of a hermetic scroll type Suction flange Terminal box with the built-in motor so that there are less places where refrigerant may leak.
  • Page 111 (2) Removal of compressor 1. Recover the refrigerant from service port r on discharge line Recover and t at receiver/water cooled condenser outlet. refrigerant (Refer to the clause 4.1.4 Refrigerant Recovery and charge) 2. Close the discharge and suction side stop valves on the compressor.
  • Page 112 Connect cables 5. Connect the cables to the terminals. Attention ! Pay the attention to the cable connection. Incorrect wiring may run the compressor in wrong direction and may cause burn out. Charge 6. Open the discharge and suction side stop valves.
  • Page 113 5. Bypass gas from high pressure side to low (4) Removal of excess refrigerant oil after pressure side of gauge manifold, adjust the compressor replacement The oil plug and "Removing oil label" are fitted low pressure to 0kPa or more.
  • Page 114 2. Filling new oil (5) Procedure for oil replacement of Daikin A: q Fill 2.0L of new oil through the suction scroll compressor (with oil gauge) flange with the compressor removed. If the refrigerator oil is contaminated due to w Attach the compressor to the unit.
  • Page 115 3. Vacuum in the refrigerant system 6. Adjustment of oil quantity 1) Connect the vacuum pump to the Refer to "(4) Removal of excess refrigerant oil connection port as shown in the figure on after compressor replacement on page 4-11.

  • Page 116: Fan And Fan Motor

    ● How to use bearing drawing tool on the market. 4.2.2 Fan and fan motor (1) Specification Bearing drawing tool Evaporator Condenser Model Propeller fan Size 440mm 300mm Model 3-phase squirrel-cage Boss induction motor When the shaft of the bearing...

  • Page 117: And Ct Board (Ec9756)

    4.2.3 PT and CT board (EC9756) r PTI (R-S voltage) Two function of the measuring device and t Connector (CN2) for main circuit protector are integrated on this printed-circuit board. This board works as an interface between the main circuit (high voltage) and the controller.
  • Page 118 (2-3) Removal of mounting plate Check the following table to see if the mounting plate should be removed. If the mounting plate must be removed, remove the four screws and dismount the mounting plate. Over current setting and removal of mounting plate...

  • Page 119: Electronic Expansion Valve

    4.2.4 Electronic expansion valve Coil ● Model Coil : HCM-MD12DM-1 Metal fitting Body : HCM-BD35DM-1 This unit adopts an electronic expansion valve. Binding band The electronic expansion valve controls the Main unit optimum refrigerant flow rate automatically, using the temperature sensor at the evaporator Lead wire inlet and outlet pipes.

  • Page 120: Suction Modulation Valve

    3.2.4 Suction modulation valve q Upper rubber e Binding band cover The flow rate of suction gas is controlled w Lower rubber between 10 to 328pls (3 to 100%) by a stepping cover ass'y motor in order to conduct capacity control operation.

  • Page 121: Drier

    2. Replacement of body 4.2.6 Drier (1) Remove the coil. Refer to the section 1. The drier automatically absorbs moisture in "Replacing the coil" for removing procedure. the refrigerant while it is circulated. It also (2) Remove the heat insulator q for the SMV after commonly works as a filter to remove dust in cut the binding band w.

  • Page 122: Solenoid Valve

    4.2.7 Solenoid valve (1) Replacing the coil q Remove the lead wire connector from the inside Two kinds of solenoid valves are employed for of the control box, and cut and recover the binding the unit. band which fastens the lead wire.

  • Page 123: Discharge Pressure Regulating Valve

    4.2.8 Discharge pressure regulating valve 4.2.9 Check valve ● Model KVR15 ● Model LCV(B)5 (1) Replacing the valve (1) Replacement procedure q Remove the protection cap to conduct brazing q Remove the pipe clamp which fixes the for the valve body.

  • Page 124: High-Pressure Switch (Hps)

    4.2.10 High-pressure switch (HPS) 4.2.11 Low pressure transducer (LPT) ● Model ACB-KB15 Model ● Set point OFF : 2400kPa (24.47kg/cm Transducer type NSK-BC010F : 1900kPa (19.37kg/cm Transducer Black body When the refrigeration pressure of the unit Connector Nothing rises abnormally, the compressor stops for safety.

  • Page 125: High Pressure Transducer (Hpt)

    4.2.13 Air-cooled condenser and evaporator y Apply the heat shrinkage tube in the following position, then shrink it with hot air of a dryer. This finned coil is compact and has uniform heat exchanging performance and high heat w Connector...

  • Page 126: Liquid/Moisture Indicator

    If the amount of refrigerant is excessive or insufficient, completely recover all refrigerant and charge with a correct amount of refrigerant. Additionally charging refrigerant exceeding the specified amount may cause a failure of the compressor. (Specified amount of refrigerant: R134a 5.2Kg/LXE10E100 or later) 4-24...

  • Page 127: Evacuation And Dehydrating

    4.2.16 Evacuation and dehydrating Boiling point of water (˚C) Atmospheric pressure(mmHg) Vacuum degree(mmHg) After repairing the refrigerant system, vacuum- –705 dehydrate the system before charging the –724 refrigerant. 26.7 –735 24.4 –737 Vacuum-dehydrating is the process to make the 22.2...
  • Page 128 Vacuum holding test qVacuum-dehydrating (first time) Hold the system at a pressure of ..2 hours wVacuum-breaking (first time) –755mmHg or lower for 1 hour or longer, and confirm that the vacuum reading does Nitrogen gas is pressurized to 0.5kg/cm not rise on the vacuum gauge.

  • Page 129: Optional Devices

    5. OPTIONAL DEVICES (1) Specifications ● Model DER9601A The following optional devices are available for ● Power supply AC13V 50/60Hz some models. As for other options, see Chapter 8 ● Recording temperature range –30.0 to +25.0 °C in the SUPPLEMENTARY MANUAL.
  • Page 130 (2) Devices and schematic wiring diagram 2) Calibration function 1) Devices Calibration switch INC : To increase Device Location INC. temperature figure Temperature recorder board In the temperature recorder box OFF. ADJ. DEC : To decrease Recorder return air sensor (RRS) Evaporator suction area DEC.

  • Page 131: Rechargeable Battery Type

    (5) Replacement of temperature recorder Speed bolt qTurn off the circuit breaker. wRemove the wiring connector and sensors from the back of the temperature recorder. eRemove the hinge on the bottom and the speed bolts on the top. rReplace the temperature recorder board.

  • Page 132: Usda Transportation

    Type of USDA sensor should be set. 5.2.3 USDA sensor calibration USDA requires sensor calibration every transportation and report each offset figure. Free-supply downloading software enable to assist this. Please refer to "Operation manual for Daikin Container Communication Software". 5.2.4 USDA transportation requirement Cargo and refrigeration unit shall be required pre-cooling before cargo loading.

  • Page 133: Pc Port Receptacle

    ●An example of installation of USDA receptacle inside USDA sensor receptacle Cargo thermo sensor receptacle PC port receptacle ●USDA sensor Connect to receptacle...

  • Page 134: Transfresh

    5.3 TransFRESH Attachment for the TransFRESH CA devices are provided to control the internal atmosphere (quantity of O and CO Use the CA devices according to the Operation Manual supplied by TransFRESH. The controller and sensor included in the CA devices are installed by the TransFRESH's agents before each transportation.
  • Page 135 ●An example of installation of CA devices, inside q TransFRESH ASS'Y A4&A5 CABLES W/MOUNTING BOX...

  • Page 136: Partial Frozen Mode

    5.4 PARTIAL FROZEN MODE Some types of devices have the partial frozen mode as part of operation modes. 5.4.1 OPERATION MODES AND SETTING TEMPERATURES Mode name Setting temperature Control sensor Inside fan Description about operation Supply air Capacity control operation ＋30.0°C to −3.0°C...

  • Page 137: Troubleshooting

    6. TROUBLESHOOTING 6.1 Refrigeration system and electrical system If the unit does not work properly, refer to the following table to find causes of trouble and provide appropriate measures. Symptom Cause Checkpoint Remedy A. Neither Faulty power supply Voltage on primary side of circuit...
  • Page 138 Symptom Cause Checkpoint Remedy F. Evaporator ・Faulty power supply of fan and compressor system Is the magnetic condenser ・Burnt-out of compressor Check for disconnection of contactor for compressor compressor motor coil fan run, but motor (disconnection) turned ON? Check the terminals ・Faulty connection of...
  • Page 139 Symptom Cause Checkpoint Remedy Disconnection of compressor fuse Fu1 circuit Is the fuse Fu1 circuit does not Replace the fuse Fu1 disconnected? operate Faulty controller Faulty PT/CT board Replace the controller or PT/CT board Power supply ・R or T-phase is...
  • Page 140 Symptom Cause Checkpoint Remedy Indicator flashes Refrigerant when the RS is shortage Gas leak check Gas leaks⇒Repare the gas leaking portion 0˚C or less Blocked pipe (parts) during frozen (including solenoid operation valves) Trap of air in refrigerant system...
  • Page 141 Symptom Cause Checkpoint Remedy The high Check for pressure is Solenoid valve leak from solenoid valve during pull-down. Is Leak from solenoid valve excessively internal leak the temperature in the piping on the BSV, HSV, ⇒Replace the solenoid valve...
  • Page 142 Symptom Cause Checkpoint Remedy Reset opening of EV, SMV The low ・Faulty opening of (Circuit breaker ON) pressure is electronic excessively low expansion valve (EV) Is pull-down possible? ・Faulty opening of Normal suction modulsting valve (SMV) Manual defrost ・Low air volume...
  • Page 143 Symptom Cause Checkpoint Remedy Continue from previous page The low pressure is Remove the electronic expansion excessively low valve coil Blow air onto here ↓ Blow air into the electronic expansion Heat here by valve and heat the valve by a dryer...
  • Page 144 Symptom Cause Checkpoint Remedy Heating operation The high pressure is excessively low Faulty operation of The discharge valve gas temperature Is the outlet piping of HSV, Faulty operation of HSV, (HSV or DSV) DSV cold? DSV⇒Replace is low The low...
  • Page 145 Symptom Cause Checkpoint Remedy Operating temperature The control is hunting temperature is unstable Is the difference in Faulty low pressure pressure between the transducer LPT Replace the LPT pressure gauge and LPT 30 kPa or more? Faulty discharge pipe...
  • Page 146 Symptom Cause Checkpoint Remedy Temperature continues Temperature to decrease continues to decrease Disconnection of Check for disconnection Replace the Fu2 in the Fu2 circuit fuse (Fu2) circuit Faulty operation of Is the DSV outlet defrost solenoid Check operation of the DSV pipe cold? ⇒Replace the DSV...
  • Page 147 Symptom Cause Checkpoint Remedy Abnormal ※ As for the manual defrost, refer to P.2-22. Manual defrost frosting on compressor ・Frosting on terminal cover ・Frosting on Defrost completed compressor head Dusts caught in Is the ISV injection solenoid outlet pipe frosted?
  • Page 148 Symptom Cause Checkpoint Remedy The condenser fan continues rotating The air cooling Water pressure evaporator fan switch WPS will continues not operate ・Water pressure is low rotating ・Water temperature is The high pressure is Check the water pressure, excessively high...

  • Page 149: Alarm Codes On Electronic Controller

    6.2 Alarm codes on electronic controller If any alarm occurs, search its cause and repair it referring to the following table. Be sure to check the connectors in the electronic controller as the poor contact of them may cause the controller alarm codes.
  • Page 150 Alarm code Content Possible cause/checkpoint Operating current of the compressor is high Single phase operation due to faulty contact E103 ・Magnetic contactor for compressor (Electronic type OC) ・Compressor cable ・Compressor terminal Malfunctioned equipment ・Compressor lock ・Actuation of thermal protector CTP for compressor ・Faulty PT/CT board (EC5)
  • Page 151 Alarm Content Possible cause/checkpoint E303 Humidity setting request Eqiupment malfunctioned E305 Defrost timer setting request ・Faulty controller E307 Calendar setting request Faulty operation E311 Trip start setting request ・Wrong initial setting of controller E315 A failure in the PT/CT board Replacement of the PT/CT board requested ・There is no input from the PT/CT board.

  • Page 152: Troubleshooting For Automatic Pti (J-Code)

    6.3 Troubleshooting for automatic PTI (J-code) Alarm Step Content Conclusion Possible cause Check method code Basic data record No judgment indication Alarm check on all Same as Same as normal Same as normal operation Same as normal sensor normal...
  • Page 153 Alarm Step Content Conclusion Possible cause Check method code Check on J221 BSV does not BSV coil malfunction Check on BSV coil, wiring discharge gas by- open. and terminals. pass solenoid BSV malfunction Check on outlet piping valve (BSV)

  • Page 154: Diagnosis Based On The Recording Chart

    6.4 Diagnosis based on the recording chart Set temperature 0˚C Occurrence read out from the recording chart Defrosting is periodically executed by the timer Abnormal content and abnormal point Normal Set temperature 0˚C Occurrence read out from the recording chart...
  • Page 155 Set temperature 0˚C Occurrence read out from the recording chart Though the temperature record is normal, the temperature rapidly rises. Abnormal content and abnormal point The compressor stops due to malfunction or the fusible safety plug is molten. Set point temperature –...
  • Page 156 Set point temperature 0˚C Occurrence read out from the recording chart When defrosting, the inside temperature temporarily drops. Abnormal content and abnormal point Since the liquid solenoid valve is not closed, pump-down operation before defrost starts is not performed, and cooling operation continues with the evaporator fan stopped.

  • Page 157: Emergency Operation

    6.5 Emergency operation 6.5.1 Emergency operation of controller In case of the controller malfunction, emergency operation can be executed by using emergency operation kit. (1) Components to be prepared (emergency operation kit) Short-circuit connector ... Installed in front of the controller inside the control box Emergency magnet ...

  • Page 158: Short Circuit Operation Of Controller

    6.5.2 Short circuit operation of controller Cooling operation Heating operation ①Turn OFF the circuit breaker. Power OFF Forcible ②Disconnect power supply connector CN1 (Red) located in front of the controller, and disconnect short-circuit connectors SCC1-1 (Blue), SCC1-2 (Red) and SCC3 (White).

  • Page 159: Emergency Operation Of Electronic Expansion Valve

    6.5.3 Emergency operation of electronic expansion valve If the controller does not work or the electronic expansion valve coil has failed, the emergency magnet can be used to fully open the electronic expansion valve. ①Disconnect the CN11 connector from the power supply I/O board of the controller to forcibly turn OFF the power supply to the electronic expansion valve.

  • Page 160: Emergency Operation Of Suction Modulation Valve

    6.5.4 Emergency operation of suction modulation valve If the controller does not work or the suction modulation valve coil has failed, the emergency magnet can be used to fully open the suction modulation valve. ①Disconnect the CN9 connector from the power supply I/O board of the controller to forcibly turn OFF the power supply to the suction modulation valve.
  • Page 161 ⑥Prepare the emergency magnet. ⑦Remove the suction proportional coil. (Removed together with the coil's lower rubber cover) ⑧Bring the emergency magnet into contact with the coil mount section of the suction modulation valve with indication "UP SIDE" located upward. (The emergency magnet is magnetically attracted to the coil mount section by the driving magnet located inside.)

  • Page 162: Automatic Back Up For Supply/Return Air Temperature Sensors

    6.5.5 Automatic Back up for supply / return air temperature sensors When the unit is equipped with the data recorder sensors, the following emergency operations are available. When the DRS and DSS are used for the emergency operation, DATA RECORDER SENSOR ON/OFF SETTING to be set OFF.

  • Page 163: Appendix

    7. APPENDIX 7.1 Standard tightening torques for bolts Tightening torque Bolt size Main part kgf cm lbf ft Small parts Solenoid valve 12.2 Access panel Evaporator fan motor Condenser fan motor 12.3 Control box Service door Evaporator fan motor mounting base Compressor suction flange 25.2...

  • Page 164: Hfc134A, Temperature-Vapor Pressure Characteristics Table

    7.4 HFC134a, temperature - vapor pressure characteristics table Temperature Vapor pressure Temperature Vapor pressure °C °F kg/cm ･G PSIG °C °F kg/cm ･G PSIG 4.79 68.1 −40 −40 −49 −0.50 −7.1 69.8 4.97 70.7 −39 −38.7 −46 −0.47 −6.6 71.6...

  • Page 165: Temperature Conversion Table And Temperature Sensor (Ss/Rs/Dss/Drs/Rss/Rrs/Eis/Eos/Sgs/Ambs) Characteristics Table

    7.5 Temperature conversion table and temperature sensor (SS/RS/DSS/DRS/RSS/RRS/EIS/EOS/SGS/AMBS) characteristics table Temperature( Temperature( Resistance(kΩ) Temperature( Temperature( Resistance(kΩ) °C) °F) °C) °F) + 50 + 122 0.985 + 32 6.860 + 49 + 120.2 1.018 – 1 + 30.2 7.176 + 48 + 118.4...

  • Page 166: Temperature Conversion Table And Temperature Sensor (Dchs) Characteristics Table

    7.6 Temperature conversion table and temperature sensor (DCHS) characteristics table Temperature( Temperature( Resistance(kΩ) Temperature( Temperature( Resistance(kΩ) °C) °F) °C) °F) 32.783 12.566 30.629 11.835 28.635 11.153 26.787 10.515 25.073 9.919 23.482 9.361 22.005 8.840 20.633 8.351 19.358 7.894 18.171 7.465...

  • Page 167: Piping Diagram

    7.9 Piping diagram ●LXE10E EFM1 EFM2 Economizer heat exchanger Evaporator Drain Pan Heater Liqiud moisture indicator Dryer A/C Condenser Reciever Service Service valve valve Check valve Compressor Service valve EV :Electronic Expansion Valve SMV:Suction Modulation Valve DPR:Discharge pressure regulator...

  • Page 168: Electric Wiring Pilot Lamps And Monitoring Circuit (Option)

    7.10 Electric wiring pilot lamps and monitoring circuit (option) Four pilot lamps which indicate operating mode are mounted on the controller in the control box. Pilot lamp Color Operating condition COMP. Green The compressor is running DEFROST The unit is under defrosting operation...

  • Page 169: Fuse Protection Table

    7.11 Fuse protection table Protection of: Fuse 1 (250V, 10A) • High pressure switch (HPS) • Compressor contactor (CC) • Evaporator fan contactor high speed (EFH) • Evaporator fan contactor low speed (EFL) • Condensor fan contactor (CFC) • Compressor terminal protector (CTP) •...

  • Page 170: Schematic Wiring Diagram (Lxe10E136)

    7.12 Schematic wiring diagram (LXE10E136)

  • Page 171: Stereoscopic Wiring Diagram (Lxe10E136)

    7.13 Stereoscopic wiring diagram (LXE10E136)
  • Page 172 Head Office. Umeda Center Bldg., 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka, 530-8323 Japan. Tel: 06-6373-4338 Fax: 06-6373-7297 Tokyo Office. JR Shinagawa East Bldg., 11F 18-1, Konan 2-chome, Minato-ku Tokyo, 108-0075 Japan. Tel: 03-6716-0420 Fax: 03-6716-0230 TR08-03 $5,00 (2008.9.00100)NK...

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