Daikin LXE10E-1 Troubleshooting guide

ダイキン海上コンテナ冷凍装置
Marine type Container Refrigeration Unit
TR06-13
LXE10E-1E
サービスガイド・パーツリスト
Service Manual・Parts List
オプション機能編・Optional Functions
PDF作成用2007.05.0710:05ページ1
https://daikin-p.ru

1
Covered Models
Regarding the basic features, operation and after servicing, please refer to
the service manual for LXE10E-1(TR03-06).
Followings are the differences of parts and software version for each
models.
List 1: Main alteration contents of each model
List 2: Main software alteration contents of each model
Model
Revised contents
LXE10E-1
Reference
page
Capillary solenoid valve 2-2 to 5
High pressure tranceducer 4-24
Low pressor tranceducer 4-23
Pressure tranceducer
location 2-2 to 5
Relay connector for EV coil 4-17
Weight (Kg) 2-1
LXE10E-1A LXE10E-1B LXE10E-1C
LXE10E-1D
Fitted Not fitted Not fitted Not fitted
SPCH01 SPCH01 NSK-BC030F NSK-BC030F
SPCL02 SPCL02 NSK-BC010F NSK-BC010F
Left side of
compressor
Left side of
compressor
Right side of
compressor
Right side of
compressor
Fitted Fitted Not fitted Not fitted
505 505 505 490
Software version Alteration point Reference page
2406 3-33
2407 2-23
2404 2-16The range of chilledmode setting temperature: -5.0 C to 10.0 C
Addition of Error code E205 ( Abnormal detection of lock current for fan motor)
Alteration of setting for manual defrost ending condition
LXE10E-1E
Not fitted
NSK-BC030F
NSK-BC010F
Right side of
compressor
Not fitted
485
Terminal circuit Screw type Screw type Screw type Screw type Connector type None
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ1
https://daikin-p.ru

2
CONTENTS
3.10.1 Chart indication mode ........................3-57
3.10.2 P code (Pull down time indication) .....3-59
3.10.3 Chartless code display function..........3-60
3.10.3.1 List of chartless codes.................3-60
3.10.3.2 H-code.........................................3-61
3.10.3.3 d-code: ........................................3-63
3.11 Communication modem ............................3-64
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 ................................4-15
4.2.3 PT and CT board (EC9756) .................4-16
4.2.4 Electronic expansion valve...................4-17
4.2.5 Thermostatic expansion valve..............4-18
4.2.6 Suction modulation valve .....................4-19
4.2.7 Drier......................................................4-20
4.2.8 Solenoid valve ......................................4-21
4.2.9 Discharge pressure regulating valve ....4-22
4.2.10 Check valve........................................4-22
4.2.11 High-pressure switch (HPS) ...............4-23
4.2.12 Low pressure transducer (LPT)..........4-23
4.2.13 High pressure transducer (HPT) ........4-24
4.2.14 Water pressure switch (WPS) ............4-24
4.2.15 Humidity sensor..................................4-24
4.2.16 Ventilation port opening degree sensor
(FA sensor) ........................................4-25
4.2.17
Air-cooled condenser and evaporator ...4-25
4.2.18 Water cooled condenser ....................4-26
4.2.19 Fusible plug ........................................4-26
4.2.20 Liquid/moisture indicator ....................4-26
4.2.21 Evacuation and dehydrating...............4-27
5. Additional Devices............................................5-1
5.1 USDA transportation .....................................5-1
5.1.1 Type of USDA sensor/receptacle ...........5-1
5.1.2 Initial setting ...........................................5-1
5.1.3 USDA sensor calibration ........................5-1
5.1.4 USDA transportation requirement ..........5-1
5.1.5 USDA report ...........................................5-1
6. Troubleshooting................................................6-1
6.1 Refrigeration system and electrical system...6-1
6.2 Alarm codes on electronic controller .............6-5
6.3 Troubleshooting for automatic PTI (J-code) ...6-10
6.4 Emergency operation ..................................6-12
6.4.1 Emergency operation of controller .......6-12
6.4.2 Short circuit operation of controller.......6-13
6.4.3 Opening adjustment of electronic
expansion valve....................................6-14
6.4.4 Emergency operation of suction
modulating valve ..................................6-15
6.4.5 Automatic Back up for supply / return air
temperature sensors ............................6-16
7. Appendix............................................................7-1
7.1 Standard tightening torques for bolts ............7-1
7.2 Standard tightening torques for flare nuts .....7-1
7.3 Standard tightening torque for stop valve .....7-1
7.4
Resistance of motor coil and solenoid valve coil ...7-2
7.5 Standard tightening torque for electronic
expansion valve coil (EV coil) .......................7-2
7.6 HFC134a, temperature-vapor pressure
characteristics table ......................................7-3
7.7 Temperature sensor characteristics table .....7-4
7.8 Temperature sensor characteristics table DCHS ...7-5
7.9 High pressure transducer characteristics table ...7-5
7.10 Low pressure transducer characteristics table .7-5
7.11 Piping diagram ............................................7-6
7.12 Pilot lamps...................................................7-7
7.13 Fuse protection table...................................7-8
7.14 Schematic wiring diagram .........................7-10
7.15 Stereoscopic wiring diagram .....................7-11
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 Operation preparation ............................1-2
1.3.2 Starting operation ...................................1-3
1.3.3 Checking during operation .....................1-4
1.3.4 Procedure after operation.......................1-4
1.3.5 Adjust the ventilation ..............................1-5
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 mode ........................................2-17
2.5.3 Defrosting mode ...................................2-19
2.5.4 Dehumidification...................................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 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 ................3-15
6. Sensor indication mode........................3-16
7. Temperature record scroll mode ..........3-19
8. Alarm record scroll mode .....................3-22
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
3.5.3 Battery check........................................3-36
3.5.4
Battery replacement (Rechargeable battery) ...3-37
3.6 Information interchange with personal computer ...3-38
3.6.1 Data logging .........................................3-39
3.6.2 Software configuration..........................3-40
3.7 Inspection procedure for the electronic controller ...3-42
3.8 Controller replacement and initial setting ....3-43
3.8.1 Controller replacement .........................3-43
3.8.2 Initial setting & operation procedure.....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) ...3-54
3.9.2.5 Manual check (M.CHECK) ............3-55
3.10 Chartless function .....................................3-57
☆
☆☆
☆
☆
☆
☆
☆
☆
☆
☆
☆
☆
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ2
https://daikin-p.ru

32-1
2. General description
2.1 Main specifications
Model
Item LXE10E-1
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
Water-cooled condenser Shell and 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 : 5.4 (kg)
Refrigerant oil (charged amount) IDEMITSU, Daphne hermetic oil FVC 46D : 2.2(R)
Weight
LXE10E-1,1A,1B : 505(kg), LXE10E-1C,1D : 490(kg), 1E : 485(kg)
System
Initiation
Termination
Refrigerant flow control
Compressor thermal protector
Air-cooled condenser Cross fin coil type
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ3
https://daikin-p.ru

4 2-2
●LXE10E-1A, 1B, 1C, 1D, 1E
qCompressor
wCompressor suction side stop valve
eCompressor disharge side stop valve
rEvaporator
tAir-cooled condenser
yWater cooled condenser
uCooling water inlet connector
iCooling water outlet connector
oEvaporator fan
!0 Condenser fan
!1 Control box
!2 Upper ventilator (Above 80m3/h)
!3 Lower ventilator (Below 80m3/h)
!4 Sampling port (Return) (Not equipped with LXE-10E-1E)
!5 Gas sampling port Sampling port (Supply)
!6 Liquid moisture indicator
!7 Drier
!8 Access panel
!9 Storage space for power cable
@0 Discharge gas by-pass solenoid valve (BSV)
@1 Defrost solenoid valve (DSV)
@2 Economizer solenoid valve (ESV)
@3 Electronic expansion valve (EV)
@4 Hot-gas solenoid valve (HSV)
@5 Injection solenoid valve (ISV)
@6 Liquid solenoid valve (LSV)
@7 Reheat coil solenoid valve (RSV)
@8 Discharge pressure regulating valve (DPR)
@9 Suction modulating valve (SMV)
#0 Thermostatic expansion valve (TEV)
#1 Ambient temperature sensor (AMBS)
#2 Discharge pipe temperature sensor (DCHS)
#3 High pressure switch (HPS)
#4 High pressure transducer (HPT)
#5 Low pressure transducer (LPT)
#6 Compressor suction pipe temperature sensor (SGS)
3132 15 31 352
22
24
12
10
36
14
11
13
19
18
9
4
5
23
30
16
25
7 68
33
17
26
28
20
34
29
21
27
2.2 Names of components
2.2.1 Outside
001-030E-SM(LXE10E-1E)A42007.05.0710:39ページ4
https://daikin-p.ru

52-3
●LXE10E-1A, 1B, 1C, 1D, 1E
· Detail of solenoid valves
DSVRSV HSV BSV ESV ISV
EV
Liquid
Moisture
Indicator
LPT
HPT
HPS
DCHS
wqrt
AMBS
CSSV
SGS
SMV
LSV
WPS
Sensor
Valve
Service Port
Drier
e
[Valve]
BSV :Bypass Solenoid Valve
CDSV:Compressor Discharge Stop Valve
CSSV :Compressor Suction Stop Valve
DSV :Defrost Solenoid Valve
DPR :Discharge Pressure Regulator Valve
EV :Electronic Expansion Valve
ESV :Economizer Solenoid Valve
ISV :Injection Solenoid Valve
LSV :Liquid Solenoid Valve
RSV :Reheater Solenoid Valve
for dehumidification control
SMV :Suction Modulation Valve
TEV :Thermostatic Expansion Valve
[Sensor]
AMBS:Ambient Air Temperature Sensor
DCHS:Discharge Gas Temperature Sensor
HPS :High Pressure Switch
HPT :High Pressure Tranceducer
LPT :Low Pressure Tranceducer
SGS :Suction Pipe Temperature Sensor
WPS :Water Pressure Sensor
· Detail of compressor and refrigerant control devices
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ5
https://daikin-p.ru

6 2-14
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.
The relationship between the operation mode and setting temperature is as follows.
※For details, refer to section 3.1 to 3.4.
Operation mode (Software version) Setting temperature Control sensor Operation description
Frozen mode
＜2403＞-30.0℃〜-5.1℃
（-22.0<〜+22.8<）Return air
temperature sensor
Compressor ON/OFF
control
＜After 2404＞-30.0℃〜-10.1℃
（-22.0<〜+13.8<）
Chilled mode
＜2403＞-5.0℃〜-30.0℃
（-23.0<〜+86.0<）Supply air
temperature sensor
Capacity control operation
with suction modulating
valve and hot-gas bypass
control
＜After 2404＞-10.0℃〜-30.0℃
（+14.0<〜+86.0<）
Defrosting mode −−
Hot-gas defrosting with
refrigerant metering control
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ6
https://daikin-p.ru

72-15
Solenoid valve Magnetic
contactor
2.5.1 Frozen mode
Control state transition and common control
Component name Thermostat ON Pump down Thermostat OFF
Compressor CC ON ON OFF
Evaporator fan. High speed EFH OFF OFF OFF
Evaporator fan. Low speed EFL ON ON ON
Condenser fan CF ON / OFF※1 ON / OFF※1 OFF
Liquid solenoid valve LSV ON OFF OFF
Economizer solenoid valve ESV ON(OFF※3) ON(OFF※3) OFF
Injection solenoid valve ISV OFF(ON※2) OFF(ON※2) OFF
Hot-gas solenoid valve HSV OFF OFF OFF
Defrost solenoid valve DSV OFF OFF OFF
Discharge gas by-pass solenoid valve BSV OFF OFF OFF
Capillary solenoid valve※4CSV OFF OFF OFF
Suction modulating valve SMV 100%
Electronic expansion valve EV 10 to 100%
Note) ※1: High pressure control
※2: Injection control (Refer to Page 2-25)
※3: Economizer control (Refer to Page 2-26)
※4: CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
RS > SP
LPT<0kPa
RS : Return air temperature LPT : Low pressure transducer
SP : Setting point temperature
Thermostat OFF
●Compressor Stop
●Evaporator fan Low speed
Pump down
●Compressor Running
●Evaporator fan Low speed
Thermostat ON (Pull-down range)
●Compressor Running
●Evaporator fan Low speed (L)
≤
≤
Continuous compressor running for
2 minutes or more and RS SP −1
Operation of magnetic contactor and solenoid valve
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ7
https://daikin-p.ru

8 2-16
(1) Set point temperature and control sensor
When the set point temperature (referred to as SP hereafter) is –5.1˚C(+22.8˚F) or lower, the
compressor is operated ON and OFF, in response to return air temperature.
(2) Control
SP
SP+1˚C
–10˚C
SP–1˚C
SP–2˚C
SP–3˚C
A
C
qWhen the control temperature reaches SP– 1.0 ˚ C (point A),
the compressor and condenser fan are turned off after the
liquid solenoid valve has been de-energized and the pump
down operation has been completed.
w When the control temperature exceeds SP, the compressor, liquid
solenoid valve and condenser fan are turned on.
However, the compressor runs for at least 2 minutes every
time once it is turned on. Even if the control temperature
becomes SP or lower (point C) within 2 minutes after the
compressor is turned on, the compressor, condenser fan
and liquid solenoid valve are not turned off. (2 minutes
compressor forced operation)
EV:Elec.Exp.Valve HSV:Hot Gas Solenoid Valve
LSV:Liquid Solenoid Valve ISV:Injection Solenoid Valve
DSV:Defrost Solenoid Valve BSV:Discharge gas Bypass Solenoid Valve
ESV:Economizer Solenoid Valve LPT:Low Pressure Transducer
DPR:Discharge pressure regulator HPT:High Pressure Transducer
SMV:Suction Modulation Valve HPS:High Pressure Switch.
WPS:Water pressure switch CSV:Capillary solenoid valve. ※Note
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
FROZEN (Return air < 5˚C)
※Note
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ8
https://daikin-p.ru

92-17
Component name Pull-down Capacity Heat-up Overcool
control protection
Compressor CC ON ON ON OFF
Evaporator fan. High speed EFH ON ON ON ON
Evaporator fan. Low speed EFL OFF OFF OFF OFF
Condenser fan CF ON / OFF※1 ON / OFF※4 ON / OFF※1 OFF
Liquid solenoid valve LSV ON ON OFF OFF
Economizer solenoid valve ESV ON / OFF※5 OFF OFF OFF
Injection solenoid valve ISV ON / OFF※2 ON / OFF※4 ON / OFF※3 OFF
Hot-gas solenoid valve HSV OFF ON / OFF※4 ON OFF
Defrost solenoid valve DSV OFF ON / OFF※4 ON OFF
Discharge gas by-pass solenoid valve BSV OFF ON / OFF※4 OFF OFF
Capillary solenoid valve※6CSV OFF OFF OFF OFF
Suction, modulating valve SMV 12 to 100% ※1 3 to 100% 100% 100%
Electronic expansion valve EV 10 to 100% 10 to 100% 0% 50%
2.5.2 Chilled mode
Control state transition and common control
START
SS<SP+1.5˚CSS≧SP+1.5˚C
Overcool protection
Capacity control
Pull-down Heat-up
SS : supply air sensor temperature
SP: Set point temperature
SS≦SP+1.5˚C RS≧SP+1.0˚C
SS≧SP+5.0˚C
SS≧SP+1.0˚C
and 3-minutes
elapse
(SS≦SP–3.0˚C
and 3-minutes elapse)
or (SS≦SP–0.5˚C
and 30-minutes elapse)
SS≦SP–0.5˚C and 3-minutes elapse
Magnetic
contactor
Operation of magnetic conductor and solenoid valve
Note) ※1: High pressure control ※2: Discharge gas temperature control
※3: Charge control ※4: Capacity control and hot gas by-pass ※5: Economizer control
※6: CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
Solenoid valve
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ9
https://daikin-p.ru

10 2-18
(1) Set point temperature and control sensor
™Chilled operation
When the set point temperature is –5.0˚C (–41˚F) or higher, the suction modulating valve (SMV) is
controlled sensing the supply air temperature in order to adjust the cooling capacity.
(2) Control
(a) Pull-down operation
Pull-down operation is carried out with fully opened suction modulating valve when the control
temperature is higher than the set point temperature for 1.5˚C or more (point q).
(b) Capacity control operation
When the control temperature reaches the point w, the in-range lamp is turned on. At the same
time, the suction modulating valve is activated to conduct the capacity control operation.
The control temperature converges to the set point
temperature (point e) while repeats temperature
increasing and decreasing.
During capacity control, hot gas by-pass (HSV, DSV, BSV)
and liquid injection (ISV) are conducted in order to maintain
the optimum operation condition of refrigerant system.
(c) Heat-up operation
When the control temperature is lower than [set point
temperature +1.5˚C] (point r), the heat-up operation
using hot gas is conducted in order to raise the return air
temperature to the [set temperature +1.5˚C] (point t).
(d) Overcool protection operation
Although the unit's operation is in a stable state, if the control temperature lowers below set point
temp –3˚C (point y), the compressor stops and only the evaporator fan continues to operate.
– 3˚C
– 2˚C
– 1˚C
+ 1˚C
+ 2˚C
SP
1
2
6
5
3
4
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
※Note
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ10
https://daikin-p.ru

112-19
2.5.3 Defrosting mode
Start defrosting
Is terminating
condition OK?
●Defrost lamp (red) ON
●Pump down
Defrosting range
Defrosting lamp (red) OFF
Return to frozen, chilled or partial
frozen operation
Evaporator fan On after delay of 60 seconds
●Compressor ON
●Evaporator fan OFF
●Condenser fan ON/OFF
● Defrosting solenoid valve ON
● Hot gas solenoid valve ON
No
Yes
Yes
Component name Pump down Defrosting
Compressor CC ON ON
Evaporator fan. High speed EFH ON/OFF※3 OFF
Evaporator fan. Low speed EFL
Condenser fan CF ON/OFF※1 ON/OFF※1
Liquid solenoid valve LSV OFF OFF
Economizer solenoid valve ESV ON/OFF※4 OFF
Injection solenoid valve ISV OFF (ON※5) ON/OFF※2
Hot-gas solenoid valve HSV OFF ON
Defrost solenoid valve DSV OFF ON
Discharge gas by-pass solenoid valve BSV OFF OFF
Reheat solenoid valve RSV OFF OFF(ON ※ 6)
Capillary solenoid valve※7CSV OFF OFF
Suction modulating valve SMV 100% 100%
Electronic expansion valve EV 10 to 100% 5%
Operation of magnetic contactor and solenoid valve
Note) ※1: Pressure control ※2: Charging control
※3: Frozen mode ... EFL ON, Chilled mode ... EFH ON
※4: Economizer control
※5: Discharge gas temperature control ※6: EOS>15˚C
※7: CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
Magnetic
contactor
Solenoid valve
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ11
https://daikin-p.ru

12 2-20
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.
(2) Defrosting initiation
Defrosting is initiated by the timer or the manual defrost key.
However, defrosting is not initiated when frosting on the evaporator can not be detected.
¡Evaporator inlet temperature : 5˚C or higher
¡Evaporator outlet temperature : 20˚C or higher
q Initiation by timer (Timer is set at the electronic controller, refer to section 3.3.2 for its operating method.)
Type of timer Defrosting interval set Function
Long timer
3, 6, 9, 12, 24 and 99
※1
hours are Regardless of the control temperature, defrosting
selectable. is initiated according to the selected interval.
Defrosting is initiated every 4 hours until the control
Short timer 4 hours
※ 2
temperature comes within the in-range after pull-down.
When the temperature is in-range, defrosting timer
will change into the selected long timer.
After the control temperature comes within
Out-range timer 30 minutes in-range once, defrosting will be started 30 minutes later if
the control temperature rises out of the in-range.
※1. Refer to "(3) On-demand defrost"
※2. 6 hours when the control temperature is – 20˚C or below.
wStarting by MANUAL DEFROST key (on the operation panel sheet key)
Press the MANUAL DEFROST key, then press the ENTER/ESC key while indicate "ON" on the LED
display. The manual defrosting operation starts.
eInitiation by frost detection
If the suction air temperature does not drop at the speed of 0.2˚C/1hr during frozen pull-down
operation, defrosting will be initiated because it is judged that frost is formed on the evaporator.
However, if the suction temperature is – 20˚C or lower, defrosting will not be initiated. (activated)
(3) On demand defrost
When "99" in long timer is selected, defrosting is activated upon the condition of frost on evaporator
coil. This function is only for Frozen setting (SP < – 10.1 deg C). and starting with 12 hours.
(If this function is selected for chilled setting, defrost initiates every 6 hours automatically.)
Procedure:
Step 1: After defrost, the controller records compressor running time for 1st 1 hour. (T1)
Step 2: When 12 hours passed after defrost, controller records compressor running time for last 1
hour (T2). And the controller check whether the below condition is satisfied.
Step 3: If the above condition is satisfied, defrost is activated.
If above condition is not satisfied, defrost is postponed another one hour.
After counting up 13 hours, then repeat "Step 2".
Defrost will be postponed every one hour until the above condition (Step 2) is satisfied.
(Max. 24 hours)
T2 > T1×1.15
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ12
https://daikin-p.ru

132-21
(4) Defrosting termination
Defrosting will be terminated when any one of the following three conditions is satisfied.
qThe below figure is satisfied during defrost.
Note) Table above shows the settings of Software Version 2407 or later.
Settings of Software Version 2406 or earlier come to the end conditions for 30 min. or later after
startup listed in Table above, regardless of operating time.
w90 minutes have elapsed.
eAny one of protective devices is activated.
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
※Note
Operating time Status prior to defrosting End conditions
Within 30 min.
after startup
Inside of range EOS＞30℃or EIS＞85℃
Outside of range EOS＞30℃or EIS＞85℃
30 min. or later
after startup
Inside of range EOS＞30℃or EIS＞85℃
Outside of range EOS＞30℃and RS/DRS＞15℃or EIS＞85℃
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ13
https://daikin-p.ru

14 2-22
2.5.4 Dehumidification
※If reheat coil and humidity sensor (Optional) is equipped:
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)/Capillary Solenoid Valve (CSV ※Note) 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: 30%RH–95%RH
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
※Note
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ14
https://daikin-p.ru

153-33
3.4 Alarm display and back-up function
3.4.1 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 7-8).
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 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 Abnormal locked current of evaporator fan motor 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
E805 Ventilator opening detector error Only alarm display
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
E807 FA open error when lower ventilator is opened during frozen operation. Only alarm displayed
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
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.
Operation
alarm
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ15
https://daikin-p.ru

16 3-36
3.5 Battery
3.5.1 Specifications
Controller can use Rechargeable batteries. It is not possible to exchange the type of battery
afterwards.
The battery is positioned on CPU & I/O box in controller box.
Rechargeable: DAIKIN original rechargeable battery
3.5.2 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)
3.5.3 Battery check
Rechargeable battery : Press "Battery check meter"
Green : Full charge
Red : Battery charging
No light : Charge or replace
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ16
https://daikin-p.ru

174-3
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.
(1) Controller operation
qPress key twice during operation, and go to Automatic Pump Down
Mode.
wSelect "ON" by using or key, and press key to start the Automatic
Pump Down.
*No displayed in LED during Automatic Pump operation
*When Automatic Pump is completed, "GOOD" is displayed. and the unit
stops.
eTurn the UNIT ON/OFF switch off.
M
™Controller display
COMP. DEFROST IN RANGE DE-HUMID.
SUPPLY
RETURN
ALARM
R.H.
Pump down set Pump down completed
COMP. DEFROST IN RANGE DE-HUMID.
SUPPLY
RETURN
ALARM
R.H.
•When the pump down
operation is ended
abnormally, "E201"
(pump down malfunction)
will be displayed.
•When the pump down
operation is completed,
the unit stops state.
COMP. DEFROST IN RANGE DE-HUMID.
SUPPLY
RETURN
ALARM
R.H.
Pump down operation
Press
key to start
pump down
Fig. 2
OFF LED
LCDP DOWN
ON
P DOWN
P DOWN
GOOD
P DOWN
After the automatic pump down operation, conduct the following jobs.
qReplacement of drier
As soon as the automatic pump down operation is complete, replace the drier in order to prevent
air from entering the drier inlet/outlet piping. (Refer to 4.2.7 for detail.)
wRecovery of refrigerant
Conduct the automatic pump down operation in advance and, then, recover the refrigerant.
(Refer to 4.1.4 s, dfor more detail.)
eRefrigerant charge
Operate Automatic pump down when the specific refrigerant amount can not be charged due to
the pressure balance.
(Refer to 4.1.4 ffor more detail.)
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ17
https://daikin-p.ru

18 4-4
(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.
qwert
[Preperation]
Turn on
Automatic pump
down.
Normal operation
for 1 minute.
[Pump down-Twice]
w→e→w→e
[Termination]
EV full close
Termination
GOOD
Pump down
start
Compressor
stops
at LP≦–55kPa
Compressor
continues to
stop for 20
seconds.
COMP. ON ON OFF OFF OFF
LSV ON
EV ON ON ON ON ON (full close)
SMV ON ON ON ON ON
ESV ON→OFF
DSV
HSV ON (1st)
BSV
CSV※Note
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
HSV
Refrigerant collected line after automatic pump dpwn operation
Compressor
Reheat Coil
BSV DSV
CSV
※Note
LSV
ESV
EV
Evaporator
RSV
DPR Condenser (Air)
Condenser
(Water)
Check valve
SMV
TEV
ISV
Drier
[Pressure
equalizing]
Increase
pressure to 0
〜300Kpa in
low pressure
side.
ISV ON (2nd)
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ18
https://daikin-p.ru

194-5
4.1.4 Refrigerant Recovery and Charge
Schematic diagram
Service work Service port Remarks
Pressure Check
High pressure w
q
Refrigerant Charge
(R134a : 5.4Kg)
[1] Refrigerant
Recovery
tRecover refrigerant from port tafter
operating Automatic Pump-Down first.
r& tRecover completely refrigerant left in the
unit port r& t.
[2] Vacuum &
Dehydration r& t
After recovering, vacuum from port r& t.
※BSV,DSV,HSV & ISV are reversible in
flow.
※The connection at port ris same size as
at qfor low pressure .
[3] Liquid
charging
t→e
After cavuuming, charge liquid refrigerant
from tfirst and then from e.
If not reached to the specified amount 5.4kg,
go to next below.
1. Operate Automatic Pump-Down first and
stop it using ON/OFF switch when the
compressure stops during the Auto P.-D.
operation.
2. Charge liquid refrigerant from port e.
Take care that the high pressure at the port r
& t will be keeping for a while after the unit
stops. ( r& t are in closed line between
check valve and LSV.)
Low pressure
e
Check valve DPR
⑤
Compressor
Reheat Coil
service port
①
②
③
④
ISV
BSV
CSV
※Note
LSV
ESV
HSV
EV
Evaporator
RSV
Condenser (Air)
Condenser
(Water)
SMV
TEV
Drier
※Note : CSV is fitted only for LXE10E-1 but not for LXE10E-1A, 1B, 1C.
001-030E-SM(LXE10E-1E)A42007.04.2713:29ページ19
https://daikin-p.ru