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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