Daikin LXE10E-A33 Troubleshooting guide

TR06-04A
Marine type Container Refrigeration Unit
Service Manual ·Parts List
Optional Functions
LXE10E-A33
LXE10E-A33A
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11
Covered Models
Regarding the features and operation of the unit, this service manual
describes the items which are different from those of the service manual
TR01-09A.
For the ☆marked items, refer to the details in the following pages.
NO. Item Different points from service manual
(Maintenance and Repair)
1☆Dehumidification function Refer to the details in the following pages.
2☆Setting temperature range Refer to the details in the following pages.
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2
*Differences from standard model service manual (TR01-09A) are marked with ☆
CONTENTS
3.10 Chartless function..................................... 3-56
3.10.1 Chart indication function .................... 3-56
3.10.2 P code (Pull down time indication)..... 3-58
3.10.3 Chartless code display function ......... 3-59
3.10.3.1 List of chartless code .................. 3-59
3.10.3.2 H-code ........................................ 3-60
3.10.3.3 d-code:........................................ 3-62
3.11 Communication modem............................ 3-63
4. Service and Maintenance................................. 4-1
4.1 Maintenance service .................................... 4-1
4.1.1 Collection of refrigerant.......................... 4-1
4.1.2 Gauge manifold ..................................... 4-1
4.1.3 Automatic pump down ........................... 4-3
4.1.4 Refrigerant recovery and charge ........... 4-5
4.2 Main components and maintenance............. 4-9
4.2.1 Scroll compressor .................................. 4-9
4.2.2 Fan and fan motor................................ 4-11
4.2.3 PT and CT board (EC9756)................. 4-12
4.2.4 Electronic expansion valve .................. 4-14
4.2.5 Suction modulation valve ..................... 4-15
4.2.6 Drier ..................................................... 4-16
4.2.7 Solenoid valve...................................... 4-17
4.2.8 Discharge pressure regulating valve.... 4-18
4.2.9 Check valve ......................................... 4-18
4.2.10 High-pressure switch (HPS) .............. 4-19
4.2.11 Low pressure transducer (LPT) ......... 4-19
4.2.12 High pressure transducer (HPT)........ 4-20
4.2.13 Air-cooled condenser and evaporator ... 4-20
4.2.14 Fusible plug ....................................... 4-21
4.2.15 Liquid/moisture indicator.................... 4-21
4.2.16 Evacuation and dehydrating .............. 4-22
5. Optional Devices............................................... 5-1
5.1 Electronic temperature recorder ................... 5-1
5.2 USDA transportation..................................... 5-3
5.2.1 Type of USDA sensor/receptacle ........... 5-3
5.2.2 Initial setting........................................... 5-3
5.2.3 USDA sensor calibration........................ 5-3
5.2.4 USDA transportation requirement.......... 5-3
5.2.5 USDA report .......................................... 5-3
5.3 TransFRESH................................................. 5-5
6. Troubleshooting ................................................ 6-1
6.1 Refrigeration system and electrical system ... 6-1
6.2 Alarm codes on electronic controller ............ 6-4
6.3 Troubleshooting for automatic PTI (J-code) ... 6-9
6.4 Diagnosis based on the recording chart..... 6-11
6.5 Emergency operation ................................. 6-14
6.5.1 Emergency operation of controller....... 6-14
6.5.2 Short circuit operation of controller...... 6-15
6.5.3 Opening adjustment of electronic expansion valve ... 6-16
6.5.4 Opening adjustment of suction modulation valve: ... 6-17
6.5.5 Automatic Back up for supply/ return air
temperature sensors............................ 6-18
6.6 Troubleshooting for automatic PTI (J-code) ... 6-19
7. Appendix ........................................................... 7-1
7.1 Standard tightening torques for bolts............ 7-1
7.2 Standard tightening torque for flare nut ........ 7-1
7.3 Resistance of motor coil and solenoid valve coil ... 7-1
7.4 HFC134a, temperature-vapor pressure characteristics table ... 7-2
7.5 Temperature conversion table and temperature sensor
(SS/RS/DSS/DRS/RSS/RRS/EIS/EOS/SGS/AMBS)
characteristics table ............................................ 7-3
7.6 Temperature conversion table and temperature
sensor (DCHS) characteristics table ............... 7-4
7.7 High pressure transducer characteristics table ... 7-4
7.8 Low pressure transducer characteristics table ... 7-4
7.9 Piping diagram.............................................. 7-5
7.10 Pilot lamps and monitoring circuit............... 7-6
7.11 Fuse protection table .................................. 7-7
7.12 Schematic wiring diagram .......................... 7-9
7.13 Stereoscopic wiring diagram .................... 7-10
Safety Precautions
• Danger ................................................................ 3
• Warning ............................................................... 4
• Caution................................................................ 5
1. Introduction....................................................... 1-1
1.1 Operation range............................................ 1-1
1.2 Basic Names of components........................ 1-1
1.3 Basic operation of refrigeration unit.............. 1-2
1.3.1 Starting operation .................................. 1-2
1.3.2 Checking during operation..................... 1-3
1.3.3 Procedure after operation ...................... 1-3
1.3.4 Adjust the ventilation.............................. 1-4
2. General description .......................................... 2-1
2.1 Main specifications ....................................... 2-1
2.2 Names of components.................................. 2-2
2.2.1 Outside .................................................. 2-2
2.2.2 Inside ..................................................... 2-4
2.2.3 Control box ............................................ 2-6
2.3 Set point of functional parts and protection devices ... 2-9
2.4 Operating pressure and running current..... 2-10
2.5 Operation modes and control ..................... 2-14
2.5.1 Frozen mode........................................ 2-15
2.5.2 Chilled and partial frozen mode........... 2-17
2.5.3 Defrosting mode .................................. 2-19
2.5.4 Dehumidification mode (Optional) ....... 2-22
2.5.5 Common control .................................. 2-23
3. Electronic Controller ........................................ 3-1
3.1 Function table ............................................... 3-1
3.2 Basic operation of electronic controller......... 3-3
3.2.1 Control panel ......................................... 3-3
3.2.2 Operation mode and control .................. 3-5
3.3 Operation procedure..................................... 3-6
3.3.1 Operation procedure flow chart ............. 3-6
3.3.2 Mode operation procedure..................... 3-9
1. Current (Operation state) indication mode ... 3-9
2. Operation setting mode........................ 3-10
3. Battery mode ....................................... 3-11
4. Mode operation .................................... 3-12
5. LED display light-OFF mode................ 3-14
6. Sensor indication mode ....................... 3-15
7. Temperature record scroll mode .......... 3-18
8. Alarm record scroll mode ..................... 3-21
9. PTI record scroll mode......................... 3-23
3.3.3 Setting flow chart ................................. 3-24
10. Optional function setting mode .......... 3-26
11. Basic function setting mode ............... 3-27
12. Optional condition setting mode......... 3-29
13. Input data mode ................................. 3-31
14. Controller software download mode... 3-32
3.4 Alarm display and back-up function............ 3-33
3.4.1 Alarm list .............................................. 3-33
3.4.2 Back-up operation at sensor malfunction ... 3-34
3.5 Battery ........................................................ 3-36
3.5.1 Specifications....................................... 3-36
3.5.2 Function ............................................... 3-36
3.6 Information interchange with personal computer ... 3-37
3.6.1 Data logging......................................... 3-38
3.6.2 Software configuration ......................... 3-39
3.7 Inspection procedure for the electronic controller ... 3-41
3.8 Controller replacement and the initial setting ... 3-42
3.8.1 Controller replacement ........................ 3-42
3.8.2 Initial setting & operation procedure .... 3-43
3.8.3 Initial setting table into spare controller ... 3-44
3.9 PTI (Pre-Trip Inspection) and periodic inspection ... 3-45
3.9.1 Inspection item..................................... 3-46
3.9.2 Automatic PTI (Pre-Trip Inspection)..... 3-49
3.9.2.1 PTI selection mode ....................... 3-50
3.9.2.2 Short PTI (S.PTI) .......................... 3-51
3.9.2.3 Full PTI (F.PTI).............................. 3-52
3.9.2.4
Alarm list during PTI (Pre-Trip Inspection) ... 3-53
3.9.2.5 Manual check (M.CHECK)............ 3-54
☆
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31-1
1. Introduction
1.1 OPERATION RANGE
Use the units within the following range.
1.2 BASIC NAMES OF COMPONENTS
Ambient temperature range
Inside temperature range
Voltage
Vibration and shock
Operation range
-30˚C to +50˚C (-22˚F to + 122˚F)
-30˚C to +30˚C (-22˚F to + 86˚F)
50Hz: 380V/400V/415V, 60Hz: 440V/460V
Voltage fluctuation rate should be within ±10%
2G
Item
112
13
6
10
4
11
5
9
8
2
3
7
qCompressor
wAir-cooled condenser
eReceiver
rEvaporator
tControl box
Outside: switch, manual defrost switch
Inside: circuit breaker
yCondenser fan
uDrier
iAccess panel
oStorage space for power cable
!0 Ventilator
!1 Sampling port (Return) Use this port to measure the
inside return air temperature.
!2 Gas sampling port This is used to measure the
Sampling port (Supply) inside supply air temperature
and inside CO2concentration.
!3 Liquid moisture indicator
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4 2-1
2. General description
2.1 Main specifications
Model
Item LXE10E
Condenser cooling system Air cooled type
Controller DECOS3d
Power supply AC 3-phase 380V/400V/415V 50Hz, 440V/460V 60Hz
Compressor Hermetic scroll type (Motor output: 5.5kW)
Evaporator Cross fin coil type
Air-cooled condenser Cross fin coil type
Evaporator fan Propeller fan
Evaporator fan motor Three-phase squirrel-cage induction motor
Condenser fan Propeller fan
Condenser fan motor Three-phase squirrel-cage induction motor
Defrosting
Hot-gas defrosting system
Dual timer, on-demand defrost and manual switch
Detecting the temperature of evaporator outlet pipe and return air
Electronic expansion valve
Capacity control Capacity control with hot gas bypass and suction modulating valve
Protective devices
/Safety devices
Circuit breaker, PT/CT board (for over current protection).
Condenser fan-motor thermal protector
Evaporator fan-motor thermal protector
High-pressure switch, Fusible plug, Fuse (10A, 5A)
Refrigerant (charged amount) R134a : LXE10E-A33 : 4.6 (kgf)
Refrigerant oil (charged amount) IDEMITSU, Daphne hermetic oil FVC 46D : 2.2(R)
Weight 465 (kgf)
System
Initiation
Termination
Refrigerant flow control
Compressor thermal protector
R134a : LXE10E-A33A : 4.8 (kgf)
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52-2
2.2 Names of components
2.2.1 Outside
●LXE10E
qAccess panel
wThermometer check port (Return air)
eCondenser fan motor (CFM)
rHot-gas solenoid valve (HSV)
tDefrost solenoid valve (DSV)
yDischarge gas by-pass solenoid valve (BSV)
uElectronic expansion valve (EV)
iEconomizer solenoid valve (ESV)
oInjection solenoid valve (ISV)
!0 Air-cooled condenser
!1 Liquid/moisture indicator
!2 Liquid receiver
!3 Drier
!4 Liquid solenoid valve (LSV)
!5 Suction modulating valve (SMV)
!6 Discharge pressure regulating valve (DPR)
!7 Compressor suction pipe temperature
sensor (SGS)
!8 Ambient temperature sensor (AMBS)
!9 Thermometer check port (Supply air)
@0 Compressor (MC)
@1 Discharge pipe temperature sensor
(DCHS)
@2 Storage space for power cable
@3 Low pressure transducer (LPT)
@4 High pressure transducer (HPT)
@5 High pressure switch (HPS)
@6 Control box
@7 Ventilator
@8 Reheat coil solenoid valve (RSV)
21 20 19 1817
11
27
3
24
2
26
22
1
10
14
12
25
13
23
16 15
7
5
9
8
6
4
28
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6 2-4
2.2.2 Inside
●LXE10E
qEvaporator fan motor (EFM)
wEvaporator
eSupply air temperature sensor (SS)
Data recorder supply air temperature sensor (DSS)
rEvaporator outlet pipe temperature sensor (EOS)
tEvaporator inlet pipe temperature sensor (EIS)
yReturn air temperature sensor (RS)
Data recorder return air temperature sensor (DRS)
uUSDA receptacle
iCargo temp. receptacles
oP.C. Port receptacles
!0 Humidity sensor
!1 Reheat coil
10 6
5
4
1
2
11
7
8
9
3
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72-6
2.2.3 Control box
qController operation panel (EC3, 4)
wMANUAL DEFROST key
eUNIT ON/OFF key
rPhase correction contactor (PCC1,2)
tMagnetic contactor for high speed evaporator fan (EFH)
yMagnetic contactor for low speed evaporator fan (EFL)
uMagnetic contactor condenser fan (CFC)
iReverse phase protection device (RPP)
oAdopter PCB (EC6)
!0 Terminal block board (TB1)
!1 Controller CPU / IO board (EC1, 2)
!2 Fuse (Fu1-6)
!3 Rechargeable battery (BAT)
!4 Voltage indicator
!5 Personal computer receptacle
!6 Circuit breaker (CB)
!7 PT/CT board
!8 Transformer (TrC), control circuit
!9 Magnetic contactor for compressor (CC)
@0 P.C.B for humidity sensor (HUS)
@1 Modem (RCD)
@2 Noise filter (NF)
GOperation panel
(Outside of the control box)
GController
In case of LXE10E-A33 In case of LXE10E-A33A
(Same as A33 besides⑬.)
GInside of the control box
In case of LXE10E-A33 In case of LXE10E-A33A
(Same as A33 besides⑧, ⑩, ⑫.)
2
3
1
3
1
2
b
–12 –10 –8–6 –4 –2
–2–3–4–5–6 –1
SP–5
OVER
2
INRANGE
HOURS
DAYS
1
UNDER
ALARM
R.H.
SUPPLY
RETURN
˚C / ˚F
%R H
DEFROST INRANGED–HUMID
COMP.
˚C
˚C
SP+
5
DECOS
DAIKIN ELECTRONICCONTAINER OPERATION SYSTEM
20
1315
PAK-61JC
10
9
22
21
1114
4
17
5
11
16
8
PAK-61JC
19
PAK-61JC
12
7
18
B4P–VH B4P–VH
FUSE
6
B3PSVH
RA–H341TD
B5P-VH
35J
PAK-
10
812
13
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Device name Actuation Set point Detection method Symbol
High-pressure switch OFF 2400kPa (24.47kg/cm2) High-pressure switch HPS
ON 1900kPa (19.37kg/cm2)
Water pressure switch OFF 98kPa (1.0kg/cm2) Water pressure switch WPS
(optional) ON 39kPa (0.4kg/cm2)
Chilled mode ON +30.0°C ~ –10.0°C Set point temperature EC
Mode selection
(+86.0°F ~ –14.0°F)
Frozen mode –10.1°C ~ –30.0°C
(13.82°F ~ –22.0°F)
Delay Fan Change-over for Hi/Lo ON 10 seconds
timer After defrosting 60 seconds
Compressor At starting 3 seconds
Defrosting Short ON 4 hours ※1
timer Long 3, 6, 9, 12, 24 and 99 hours(※2)
Back-up OFF 90 minutes
In-range masking 90 minutes ※3
Out-range guard ON 30 minutes
Defrosting termination set point OFF 30˚C (86°F) Evaporator outlet EOS
Reset tempertature sensor
15˚C (59°F) ※4 Return air temperature RS, DRS
sensor
High-pressure control for Condenser fan OFF 800kPa (8.2kg/cm2) ※7 High-pressure transducer HPT
(※Frozen only) ON 1000kPa (10.2kg/cm2)
Discharge gas Pull down OFF 135˚C (275°F) Discharge gas DCHS
temperature LPT>50kpa Reset After 3 minutes elapsed temperature sensor
protection LPT≦50kpa OFF 128˚C (262°F)
set point Reset After 3 minutes elapsed
Overcurrent protection set point (Cutout) OFF 26.0A PT/CT board CT2
Reset After 3 minutes elapsed
Current control Control 50Hz : 16.1A PT/CT board CT1
60Hz : 17.4A
High pressure control Control 2300 to 2350 kPa High pressure sensor HPT
(23.5 to 24.0 kg/cm2)
Circuit breaker OFF 30A CB
Fuse OFF 5A, 10A ※5 Fu
Evaporator fan motor thermal protector OFF 132˚C (270°F)
Condenser fan motor thermal protector OFF 135˚C (275°F) MTP
Compressor motor thermal protector OFF 140˚C (284°F) CTP
8 2-9
2.3 Set point of functional parts and protection devices
Electronic controller
Initiation
Current
Motor
Pressure switch
(※1) When Return air (RS) is lower than –20˚C, defrost starts every 6 hours.
(※2) When "99" hours is selected, refer to on demand defrost in 2.5.3. (TR01-09A)
(※3) When Inside set point is –20.0˚C or Lower, In-range masking is 120min.
(※4) If defrost is initiated when inside temperature is out rangle area. (= In-range LED is not light), this condition is added to
finish defrost. Refer to "Defrosting termination" in 2.5.3. (TR01-09A)
(※5) Refer to "Fuse Protection table" in 7.11. (TR01-09A)
(※7) When dehumidification is ON in dehumidification mode, the setting figure may change between 900~2100kPa
automatically (Refer to "High Pressure Control" Page 2-17/TR01-09A)
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92-14
2.4 OPERATION MODES AND CONTROL
The relationship between the operation mode and setting temperature is as follows.
Operation mode Setting temperature Control sensor Operation description
Frozen mode –10.1˚C to –30.0˚C Return air
Compressor ON/OFF control
(13.82˚F to –22.0˚F) temperature sensor
+30.0˚C to –10.0˚C
Supply air
Capacity control operation
Chilled mode (+86.0˚F to –14.0˚F)
temperature sensor
with suction modulating valve
and hot-gas bypass control
Defrosting mode –
–Hot-gas defrosting with
refrigerant metering control
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10 2-22
3 Dehumidification mode
The unit have dehumidification control by a reheat coil, which is 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 flow high pressure and high temperature
refrigerant to reheat coil. The "DEHUMID" LED lamp will light up.
The following setting can be made:
1) Dehumidification range: 60–95%RH
RECEIVER
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113-12
Press the
M
MODE
key in current indication mode to move 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 generators set or
power facilities.
The selections are "off (No limit)", "15" "14" "13" "12" "11" KVA.
2. Automatic pump down
Pump down can be executed automatically.
(Refer to "Automatic pump down" in 4.1.3/TR01-09A)
3. Dehumidification mode setting
Dehumidification mode can be executed in this mode (M. Dehumidification mode control in 2.5.4/
TR01-09A)
When "Dehumidification" is set to "on", it is possible to change the following set from default.
qInside humidity : 60 ~95% RH
MODE
OPERATION
All indication
Lightson
(for 3sec.)
Starting
Preparation
(for 18 sec.)
Current
indication
(Operation state)
M
MODE
4. Mode Operation
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12 3-33
5 Alarm display and back-up function
5.1 Alarm list
Alarm Alarm Alarm content Action with alarm
grouping code
F101 HPS activated within 30 seconds after operation start or protection device Unit stops
activated 5 times at start-up operation or Fuse 1 brown (Refer Page 7-7).
F109 Low- pressure drops to–85kPa or lower within 2 seconds after operation start . Unit stops
F111 HPS does not activate when it reaches to the set value. Unit stops
F301 Temperature setting required (SRAM failure) Unit stops
F401 Return / Supply for data / Supply air sensor malfunction (at chilled mode) Unit stops
F603 Suction modulating valve (SMV) does not fully close contrary to the designation
or initial setting of the controller is wrong. Unit stops
F701 Abnormal high voltage (over 600V) or low voltage (under 300V) Unit stops
F705 S phase became open phase Unit stops
F803 Abnormalities, which make it impossible to continue operation (Note2.) Unit stops
E101 High-pressure switch activated during normal operation. Restart after 3-minute
E103 CTP or electronic OC activated during normal operation. Restart after 3-minute
E105 Micro processor OC activated during normal operation. Restart after 3-minute
E107 DCHS became abnormal high temperature during operation. Restart after 3-minute
In the event the refrigerant circulation rate is low, the unit
If this error occurs two times, F803
will stand by for three minutes to restart then.
error will be detected to stop the unit.
E109 Low pressure drops to–90kPa or lower for 2 seconds Restart after 3-minute
or longer successively during normal operaton.
E201 Pump down is not completed within 90 seconds. Only alarm display
E203 Overcool protection activates in the chilled. Restart after 3-minutes
(Control temperature ≦SP–3˚C or for 3 minutes)
E205 Evaporator for motor failure (Note 2) Only alarm display
E207 Defrosting is not completed within 90 minutes Only alarm display
E303 Humidity setting required (SRAM failure) Only alarm display
E305 Defrost timer setting required (SRAM failure) Only alarm display
E307 Calendar setting required (SRAM failure) Only alarm display
E311 Trip-start setting required (SRAM failure) Only alarm display
E315 PT/CT board failure Restart after 3-minutes
E401 Supply air temperature sensor (SS) malfunction Back-up operation
E402 Data recorder supply air temperature sensor (DSS) malfunction Back-up operation
E403 Return air temperature sensor (RS) malfunction Back-up operation
E404 Data recorder return air temperature sensor (DRS) malfunction Back-up operation
E405 Discharge air temperature sensor (DCHS) malfunction Only alarm display
E406 Suction gas temperature sensor (SGS) malfunction Back-up operation
E407 Evaporator inlet temperature sensor (EIS) malfunction Back-up operation
E409 Evaporator outlet sensor (EOS) malfunction Back-up operation
E411 Ambient sensor (AMBS) malfunction Only alarm display
E413 Low pressure transducer (LPT) malfunction Back-up operation
E415 High pressure transducer (HPT) malfunction Back-up operation
E417 Voltage sensor (PT1) malfunction Only alarm display
E421 Current sensor (CT1) malfunction Only alarm display
E423 Current sensor (CT2) malfunction Restart after 3-minutes
E425 Pulp temperature sensor (USDA1) malfunction Only alarm display
E427 Pulp temperature sensor (USDA2) malfunction Only alarm display
E429 Pulp temperature sensor (USDA3) malfunction Only alarm display
E431 Humidity sensor (HuS) malfunction Only alarm display
E433 Cargo temperature sensor (CTS) or box temperature sensor Only alarm display
(CBS) malfunction
E603 Suction modulating valve (SMV) malfunction or driver malfunction Back-up operation
E607 MDS (sheet key) malfunction Only alarm display
E707 Momentary power failure Restart after 3-minutes
E801 Backup battery replacement date exceeded Only alarm display
Permanent stop
Display alone or restartable alarm
Protection device activation
Control error
Printed-circuit
board failure
Sensor alarm
Electronic
functional
part alarm
Power
supply
alarm
Ohter
alarm
Note 1) The alarm LED does not blink when E code alarm is generated.
To check if any alarm generates, use alarm indication function in the section "1. Current indication
mode" of "3.3.2 Mode operation procedure.
2) In the event error E101, E103, E107, or E109 occurs 10 times, the system will go to 4-hour standby
mode.
When both evaporators have malfunctioned, the unit stops.
3) In case of sensor malfunction, the judgment for sensor malfunction does not perform for 3 minutes
before the pressure or temperature reaches to the specified value.
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133-36
6 Battery
6.1 Specifications
Controller can use Rechargeable batteries.
The battery is positioned on CPU & I/O box in controller box.
Rechargeable: DAIKIN original rechargeable battery
6.2 Function
This battery is used without main power supply for the following functions.
1) Display wake up (Refer to chapter 3.3.2) page 3-11.
Setting/Display the following items on the LCD display.
<Display>
Temperature on the return air sensor
Temperature on the supply air sensor
<Setting change>
Inside temperature, defrosting interval, dehumidifying set, Unit ON/OFF
2) USDA data log
USDA sensors data log every 1 hour
6.3 Battery check
Rechargeable battery: Press "Battery check meter"
Green: Battery is charged.
Red: Charge the battery.
No light: Charge or replace the battery.
13-14LXE10E-A33.indd1313-14LXE10E-A33.indd13 07.3.57:19:44PM07.3.57:19:44PM
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14
6.4 Battery replacement (Rechargeable battery)
Detach the cover of battery and replace the battery
3-40
Voltage indicator
(Battery check meter)
Rechargeable battery
(In case of LXE10E-A33A)
(Battery fixing plate)
Rechargeable battery (In case of LXE10E-A33)
(Battery fixing plate)
13-14LXE10E-A33.indd1413-14LXE10E-A33.indd14 07.3.57:19:44PM07.3.57:19:44PM
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154-14
8 Electronic expansion valve
●Model Coil : EBM-MD12MD-30
Body : EDM-B804DM-1
This unit adopts an electronic expansion valve.
The electronic expansion valve controls the
optimum refrigerant flow rate automatically,
using the temperature sensor at the evaporator
inlet and outlet pipes.
In case of emergency including controller
malfunctions, refer to the chapter of
troubleshooting, section 6.5, Emergency
operation.
(1) Replacing the coil
q Loosen the lock nut, then remove the coil
from the body.
wInstall a new coil. The tightening torque for
installation is 6.9 to 16.7 N  m (70 to 170kgf 
cm).
eRestore the binding bands and the lead wire
into the original state.
rAfter replacing, carry out refrigerant leakage
check, and make sure that there are no leaks.
eBody
qCoil
wLock nut
(2) Replacing the body
qLoosen the lock nut, then remove the coil.
wRemove the hexagonal head bolts, and cut
the pipe on the body, then remove remaining
pipes from brazing parts.
eConnect a new body to the pipes. Be sure to
conduct brazing work while cooling the body
below 120˚C (248˚F) by using wet cloths.
rFix the body to the mounting base.
tRemove the cap, and mount the coil with the
tightening torque of 6.9 to 16.7 N  m (70 to
170kgf  cm).
yAfter replacing, carry out refrigerant leakage
check, and make sure that there are no leaks.
yCap
qCoil
wLock nut
eMounting base rHexagon
head bolt
tBody
uApply a sillicon sealant to the lock nut section.
Seal using with
sillicon Sealant
15LXE10E-A33.indd1515LXE10E-A33.indd15 07.2.111:57:36AM07.2.111:57:36AM
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16 7-5
9. APPENDIX
9.1 Piping diagram
HEAT EXCHANGER
EV
SERVICE PORT (HIGH)
(QUICK JOINT TYPE)
SERVICE PORT (HIGH)
(QUICK JOINT TYPE)
SERVICE PORT (HIGH)
(QUICK JOINT TYPE)
LIQUID INDICATOR
DRIER
SMV
SERVICE PORT (LOW)
(QUICK JOINT TYPE)
CHECK VALVE
RECEIVER
RSV
HSV
DSV
DPR
BSV
ISV
LSV
ESV
HEAT EXCHANGER
EV:Electronic Expansion Valve SMV:Suction Modulation Valve DPR:Discharge pressure regulator
LSV:Liquid Solenoid Valve HSV:Hot Gas Solenoid Valve
DSV:Defrost Solenoid Valve ISV:Injection Solenoid Valve
ESV:Economizer Solenoid Valve BSV:Discharge Gas Bypass Solenoid Valve
16LXE10E-A33.indd1616LXE10E-A33.indd16 07.2.110:56:16AM07.2.110:56:16AM
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17
9.2 Schematic wiring diagram (LXE10E-A33)
17-20LXE10E-A33A3.indd1717-20LXE10E-A33A3.indd17 07.2.286:48:51PM07.2.286:48:51PM
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18
9.3 Stereoscopic wiring diagram (LXE10E-A33)
BLK BLU GRN
GRY
RED
WHT
BRN
YLW
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19
9.2 Schematic wiring diagram (LXE10E-A33A)
CONNECTOR
SCC1-1,-2
SHORT
CIRCUIT
SCC3 SCC2
SHORT
CIRCUIT
CONNECTOR CONNECTORSHORT CIRCUIT
EVAPORATOR
AMBS
4
APPLY
1
B
CN32
CC
1
A
1
PPR1
TB1
3 35 3 5 5
APPR2
CN30 CN31
B
7
AIR
REMOTE
RPP
PRESSURE
32
BREAKER(30A)
LCD
CN31
LD5 LD6
LD9-12
LD2 LD1 LD3
LD7
EC3
LD4
LD8
EC4
301
REMOTE
2
VALVE
TRANSFORMER
BLK
U
U2
BLK
43
YLW
33
CM
BLU
39
WHT
CFM
W
V1
WHT
EFM2
V2W2
BRN
U1
44
U1
40
V1
V2
42
W2
34
3
VCT2
22
※
※
WHT
RED
BLK
U
CC
W
23
4
24
EFM1
W1
U2
RED
35
V
RED
W1
EFH
CFC EFL
41
EVAPORATOR
FAN
T
4
5
*5
3
11
20
4
*8
1
LEDA
3
3
Fu1
(GRN)
KEY
132
1
CPU
BAT
CN26
TEST
8
123
BOARD
DEVICE.
INDICATOR(EC7)
SUCTION
※
INJECTION
3
BLK
TB1
FUSE
G
3
CN7
EC5
DCHS
3
CN2
SS
2
RED
RSV
*13
CN37
CTP
5
1
CN25
CN10
SWITCH(BATTERY
UR3
SENSOR
2
3
LXE10E-A33
DIODE(SUPPLY)
EC3
HPT
17
5
125
(DECOS)
4
NORMAL
RETURN
460V
THE
9
CN21
BOARD
1
Fu1
RS
VALVE
PHC
3
CN24
CN22
EFL
BSV
(BLU)
(250V,10A)(TB1)
線番号１００以降
3
RY RY
PRINTED
SUPPLY
1
1
6
1
HSV
4
LD3
LPT
2
4
2
PCC1
*7
INDICATOR)
5
8
CN22
4
REVERSE
0V
HPT
CONTACTOR
TrC
18
7
8
・
SENSOR
BLK
WIRE
3
153
1
RED
BS7
※
PHC
1
W1
RCD
3
RPP
1
15
BLK
※
および、リモー
CN27
CM
CARGO
BOARD
6
8
LIGHT-EMITTING
1
PRESSURE
19
CN14
AMBS
1
REHEAT
5
DISPLAY
CONDENSER
CORE
202
4166
165
5
10
9
164
8
168
169
1
RCD(YORK)
7
2
1
6
BLU
※
3
1
3
3
167
7
5
WHT
※
※
170
PCC1
HPS
6
6
CFC
PROTECTOR
FAN
2
RECEPTACLE
3
EXPANSION
10
1.DO
2
CN2
THE
4
RECORDER
AFTER)AND
LD4
1
60HZ
1
BS8
11
CN1
CN84
EFL
151
EFH
8
LSV
MONITOR-GREEN(EC1)
EC7
CURRENT
を行わぬこと。
51 3 64 82 7
10
EC1
SPEED
SENSOR
1
EFM1,2
3
RY
U2
5
8
2
COMPRESSOR
BLK
1
SOLENOID
BOX 3
(DECOS)
CONTACTOR
CN12
REFRIGERATION
SOLENOID
8
6
EC4
SPEED
RY
2
PCC2
6
6
CRYSTAL
PROTECTOR
DEFROST
INLET
8
INSULATION
INDICATOR(EC7)
137
RY
13V
SENSOR
COMMUNICATION
8
TEMP.SENSOR
TRANSDUCER
4
2
6
2
COMPRESSOR
CT1,2
COMMUNICATION
4
SW1
0V
9
2
4 1
CB
24V
OF
CONTACTOR
4
LD1
LIGHT-EMITTING
U1
4
CN11
3
BLK
2
COUPLER
SENSOR
PCC1,2
131
4
DIODE(ALARM)
LED1
3
HUMIDITY
(BLK)
WIRING
BS2
31
1
LIGHT-EMITTING
9
(BRN)
CN38
EV
155
CN17
RY
BOARD
Fu4
E
104
VALVE
CN16
155
ON
*5
4
ADAPTER
1
RY
(BLU,RED)
U3
CN19
MODULATING
5
SOLENOID
SMV
SGS
1
16
B
１．操作回路
RCD
1
12
*6
CN10
4
TB1
18
7
2
4
WHT
CN1
USDA1-3
LED1
2
(COOL)
1
101
50HZ
1
LD8
LEVEL
1
7
EC8
CAUTION
5
BLK
ISV
139
OPTIONAL
133
S
2
DCHS
RY
COMPRESSOR
2
16
CN81
DIODE
CC
POSITION
AIR
10
CIRCUIT(ON
CN4
2
CN33
※
1
Fu6
5
2
MTP
*5
9
138
2
2
BS1-10
15
DSV
)
6
RED
1
DSS
CIRCUIT
BOARD
BS5
CN18
3
106
LOW
135
W3
CN5
CTS
2
USDA3
RSV
RED
CN6
Fu2
FERRITE
1
400V
PHC
14
3
CN2
PCC1,2
RS
USDA2
2
PHASE
146
*2
TeS1
LSV
(BRN)
ELECTRONIC
EOS
CN12
CTR
101
5
SCC1,2,3:BEHIND
DATA
No.100
4
POWER
136
415V
6
5
9
B
1
3
SCC1-1(BLU)
SERVICE
FILTER
3
LED2
202
12
トコミニュケーションデバイスには絶縁試験
*2
EV
LOW
TEMP.
(PT,CT)
SERVICE
CN20
RY
CN29
DIODE(COMP)
※
TRANSDUCER
2
CFC
7
6
※
5
COIL
RY
BLK
BOARD
FAN
1
CONTAINER
GAS
DRS
7
15
2
LD-A
HIGH
HSV
EC7
*3
143
CONTACTOR
※
7
LIQUID
COMPRESSOR
BATTERY
VALVE
EC7
NOT
B
12
LED2
CONTROLLER
CN-C1
RETURN
PHC
THE
PCC2
EC8
SCC2(BLU)
AMBIENT
HIGH
RY
CIRCUIT
139
6
CT2
1
CTR
(BLK)
BOARD(DECOS)
CN82
DRS
140
POTENTIAL
TRANSFORMER
R
11
CB
WIRING
EVAPORATOR
EFH
TEMP.
3
CN40
Z1C
UR1
1
440V
2
P
PHOTO
DISCHARGE
EFL
HuS
RANGE)
VALVE
LIGHT-EMITTING
BLK
LED1
171
*4
UNIT
VALVE
BLK
G
4
EFH
EVAPORATOR
A5V
CN36
DSV
LD6
USDA1
9
CN83
DISPLAY
24V
SOLENOID
SENSOR
2
TrC
SGS
CTS
10
TERMINAL
1
BATTERY
RY
WHT
CN11
1
152
MOTOR
10
DEVICE(YORK)
2
104
81
EFL
Fu6
PT
SCC1,2,3
4
DIODE(DE-HUMID)
2
BLK
2
CN9
3
5
LD2
EC6
3
CT1
4
BLK
10
DIAGRAM
19
CN20
302
MTP
*8
415V
*10
2
(COOL):BLU,(HEAT):RED
13
LIGHT-EMITTING
6
T2
Z1C
RECEPTACLE
(HEAT)
8
HIGH
1
3
4
10
VALVE
ISV
DSS
SUCTION
(
SCC1-2(RED)
9
LIGHT-EMITTING
301
POWER
P
105
SENSOR
CN16
1
SOLENOID
CN8
*9
1
CTP
MOTOR
8
8
CN19
EC2
SPECIFICATION
LD7
1
ESV
CB
※
CN24
BS1
2
Fu3
*3
SWITCH
FUSE
2
UR1-3
NOISE
SENSOR
2
BLK
14
NF
CFC
NF
PCC
SUPPLY
SW1
PHC
1
CN18
(GRN,RED)
11
3
CN3
5
131
EC5
WHT
2
5
U1
WHT
4
PC.PORT
BAT
SENSOR
CN23
8
PLUG
CN1
13
EC8
Fu6
※
CN2
6
(250V,5A)(EC6)
LIGHT
PHASE
9
BLK
6
RPP
CN-C2
MONITOR-GREEN(EC6)
DIODE
OUTLET
132
CN14
(WHT)
SENSOR
5
145
RY
LIGHT-EMITTING
RY
CONTROL
12
※
LCD
R
BYPASS
ECONOMIZER
CN39
EIS
CN15
134
EMERGENCY
11
BSV
(DECOS)
THERMAL
(250V,1A)(EC8)
BATTERY
1
LPT
LD-A
144
6
注意
PT
BS9
CONTACTOR
3
SCC3(WHT)
1
PCC
2
1
Z1C
PARTS
AT
SCREW
TERMINAL
TAPE FOR
NOTES
MEANS
COLOR SENSOR.
TAB
2.( DISTINGUISHING
END
TERMINAL
OPTIONAL
)
1. CONNECTOR
RECEPTACLE
DATA
EC2
※
*9
PUSH
BOARD
3
1
3
CN13
11
2
VALVE
Fu1-6
133
7
※
4
USDA
RPP
CONTROL
※
Fu1
G
EIS
LIGHT-EMITTING
2
TB1
TB1
4
SUPPLY
LIGHT-EMITTING
FAN
LIQUID
SWITCH
2D056791-1
MOTOR
CONDENSER
7
※
CN17
SSLEDA
4
0V
5
RY
RY
PRESSURE
BS3
G
6
380V
GAS
13
HOT
DIODE(R.H.)
RELAY
*4
Ry1-19
CN13
G
VALVE
7
RY
CFM
PROTECTOR
7
LED1
W2
3
RY
CC
6
USDA
3
6
BACK
103
12
201
EC4
SOLENOID
(YLW)
LIGHT-EMITTING
*7
SMV
BAT
7
AIR
*1
7
6
EC1
※
Fu5
302
W
HPS
G
EC5
BS6
SHEET
FUSE
EFH
CN6
413
POWER
CORRECTION
UR2
*6
10
CARGO
(EC6)
SENSOR
17
CN34
I/O
DIODE(IN
EOS
※
2
108
SOLENOID
EC3
BLK
ESV
BS4
EC1
S
1
EC6
*13
201
140
RECORDER
3
EVAPORATOR
BUTTON
(DECOS)
COND.
LD9-12
PPR1,2
154
1
TrC
TRANSFORMER
5
CN3
DIODE(DEFROST)
CT1
RY
AIR
DIODE(RETURN)
MOTOR
LD5
2
THERMAL
FAN
HuS
EC6
2
EC2
AND
NF
※
BS10
U2
GAS
CN23
*10
3
2
2
3
*1
CN32
CC
5
CN21
※
4
※
17-20LXE10E-A33A3.indd1917-20LXE10E-A33A3.indd19 07.2.286:48:51PM07.2.286:48:51PM
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