Daikin LXE10E-A27 Troubleshooting guide

TR04-05
(2004.XX.000XX)NK
Head Office. Umeda Center Bldg., 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka, 530-8323 Japan.
Tel: [phone]
Fax: [phone]
Tokyo Office. JR Shinagawa East Bldg., 10F 18-1, Konan 2-chome, Minato-ku Tokyo, 108-0075 Japan.
Tel: [phone]
Fax: [phone]
TR04-05
Marine type Container Refrigeration Unit
LXE10E-A27
Service Manual・Parts List
Optional Functions
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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.
NO. Item Different points from service manual
（Maintenance and Repair）
1☆Debumidification function Refer to the details in the following pages.
For the ☆marked items, refer to the details in the following pages.
2☆Trans FRESH (PROVISION) Provided
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2
*Diffirences 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................................................3-37
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, monitoring
receptacle
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 DECOS3C
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 : 4.6 (kgf)
Refrigerant oil (charged amount) IDEMITSU, Daphne hermetic oil FVC 46D : 2.2(R)
Weight 495(kgf)
System
Initiation
Termination
Refrigerant flow control
Compressor thermal protector
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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 Ventilation
@8 Reheat coil solenoid valve (RSV)
21 20 19 18 17
7
11
5
9
27
3
24
2
26
22
1
10
8
14
12
25
13
6
23
16 15
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)
Recorder supply air temperature sensor (RSS, optional)
rEvaporator outlet pipe temperature sensor (EOS)
tEvaporator inlet pipe temperature sensor (EIS)
yReturn air temperature sensor (RS)
Data recorder return air temperature sensor (DRS, optional)
Recorder return air temperature sensor (DRS, optional)
uUSDA receptacle (optional)
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, optional)
@1 Modem (RCD, optional)
@2 Noise filter (NF, optional)
●Operation panel
(Outside of the control box)
●Controller
●Inside of the control box
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
PAK-61JC
10
9
22
15 21
4
14
17
5
11
13
11
16
8
PAK-61JC
19
PAK-61JC
12
7
18
B4P–VH B4P–VH
FUSE
6
B3PSVH
RA–H341TD
B5P-VH
35J
PAK-
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8 2-9
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 to –2.9°C Set point temperature EC
(+86.0°F to +26.8°F)
Mode selection
Partial frozen mode –3.0°C to –10.0°C
(+26.6°F to +14.0°F)
Frozen mode –10.1°C to –30.0°C
(+13.8°F to –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 ※5Fu
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
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
(+13.8˚F to –22.0˚F) temperature sensor
Partial frozen –3.0˚C to –10.0˚C Return air
Capacity control operation
mode (+26.6˚F to +14˚F) temperature sensor
with suction modulating valve
and hot-gas bypass control
+30.0˚C to –2.9˚C Supply air
Capacity control operation
Chilled mode (+86˚F to +26.8˚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 give high pressurized refrigerant to reheat
coil. The "DEHUMID" LED lamp will light up.
The following setting can be made:
1) Dehumidification range: 60%RH–95%RH
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113-12
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 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 : 95% ~60% RH
M
MODE
MODE
OPERATION
All indication
Lights on
(for 3 sec.)
Starting
Preparation
(for 18 sec.)
Current
indication
(Operation state)
※
1
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 air sensor malfunction (at chilled mode) Unit stops
F403 Return/Supply air sensor malfunction (at partial frozen 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) 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 or partial frozen mode. Restart after 3-minutes
(Control temperature ≦SP–3˚C or for 3 minutes)
E205 Evaporator for motor failure 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.
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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6 Battery
6.1 Specifications
DECOS 3c controller can use two types of batteries; Alkaline or Rechargeable (Optional). It is not possible
to exchange the type of battery afterwards.
The battery is positioned on CPU & I/O box in controller box.
Alkaline: 9V block battery. (This can be purchased locally.)
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 (Optional), Unit ON/OFF
2) USDA data log
USDA sensors data log every 1 hour
Note) When the Alkaline battery is equipped, it must be replaced for a new every PTI, when USDA is
used.
3) Trip data log
Trip data; Setting point, Supply air, Return air, Humidity and time is logged every 1 hour after power off
until battery run out. (Min. 3 days)
6.3 Battery check
Alkaline battery: Press key to confirm the Battery mode workable.
When the power is disconneced.
Rechargeable battery: Press "Battery check meter"
Green: Operatable
Red: Replace battery
S
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14 3-40
B4P–VHB4P–VH
FUSE
B3PSVH
RAÅ|H341TD
B5P-VH
Rechargeable battery
(Battery fixing plate)
Voltage indicator
(Battery check meter)
6.4 Battery replacement (Alkaline and Rechargeable battery)
Detach the cover of battery and replace the battery
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155-5
7 TransFRESH
Attachment for the TransFRESH CA devices are provided to control the internal atmosphere (quantity of O2
and CO2).
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.
●An example of installation of CA devices, outside.
qTransFRESH COMMUNICATION BRACKET
wTransFRESH Single purge port
※A2, A3 cables (provision only) are provided.
However, terminal connections are not performed in the control box.
q
w
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16 4-14
8 Electronic expansion valve
●Model Coil : EBM-MD12DM-1
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
qLoosen 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.
(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.
eBody
qCoil
wLock nut
yCap
qCoil
wLock nut
eMounting base rHexagon
head bolt
tBody
uApply a sillicon sealant to the lock nut section.
Seal using with
sillicon Sealant
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177-5
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
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9.2 Schematic wiring diagram
19
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