Daikin LXE10E-A17, Service Manual

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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

*Diffirences from standard model service manual (TR01-09A) are marked with 

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