Container
Refrigeration
Unit
Models 69NT40-511-1 to 69NT40-511-199 and 69NT40-521
DUE TO THE LARGE NUMBER OF SCHEMATIC DIAGRAMS CONTAINED IN THIS BOOK, THE BOOK IS PRESENTED AS TWO FILES. REFER TO FILE T268-DIAGRAMS FOR THE CHAPTER 7 ELECTRICAL DIAGRAMS AND SCHEMATICS
T-268 Rev G
OPERATION AND
SERVICE MANUAL
CONTAINER REFRIGERATION UNIT
MODELS 69NT40-511-1 to 69NT40-511-199 and 69NT40-521
Carrier Transicold Division, Carrier Corporation, P.O. Box 4805, Syracuse, N.Y. 13221
E Carrier Corporation 1999 S Printed in U. S. A. 0499
SAFETY SUMMARY
GENERAL SAFETY NOTICES
The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this manual. They are recommended precautions that must be understood and applied during operation and maintenance of the equipment covered herein. The general safety notices are presented in the following three sections labeled: First Aid, Operating Precautions and Maintenance Precautions. A listing of the specific warnings and cautions appearing elsewhere in the manual follows the general safety notices.
FIRST AID
An injury, no matter how slight, should never go unattended. Always obtain first aid or medical attention immediately.
OPERATING PRECAUTIONS
Always wear safety glasses.
Keep hands, clothing and tools clear of the evaporator and condenser fans.
No work should be performed on the unit until all circuit breakers and start-stop switches are turned off, and power supply is disconnected.
Always work in pairs. Never work on the equipment alone.
In case of severe vibration or unusual noise, stop the unit and investigate.
MAINTENANCE PRECAUTIONS
Beware of unannounced starting of the evaporator and condenser fans. Do not open the condenser fan grille or evaporator access panels before turning power off, and disconnecting and securing the power plug.
Be sure power is turned off before working on motors, controllers, solenoid valves and electrical control switches. Tag circuit breaker and power supply to prevent accidental energizing of circuit.
Do not bypass any electrical safety devices, e.g. bridging an overload, or using any sort of jumper wires. Problems with the system should be diagnosed, and any necessary repairs performed, by qualified service personnel.
When performing any arc welding on the unit or container, disconnect all wire harness connectors from the modules in the control box. Do not remove wire harness from the modules unless you are grounded to the unit frame with a static-safe wrist strap.
In case of electrical fire, open circuit switch and extinguish with CO2 (never use water).
SAFETY SUMMARY
Safety-1 |
T-268-07 |
SPECIFIC WARNING AND CAUTION STATEMENTS
To help identify the label hazards on the Unit and explain the level of awareness each one carries, an explanation is given with the appropriate consequences:
DANGER - means an immediate hazard which WILL result in severe personal injury or death.
WARNING - means to warn against hazards or unsafe conditions which COULD result in severe personal injury or death.
CAUTION - means to warn against potential hazard or unsafe practice which COULD result in minor personal injury, product or property damage.
The statements listed below are applicable to the refrigeration unit and appear elsewhere in this manual. These recommended precautions must be understood and applied during operation and maintenance of the equipment covered herein.
WARNING
When servicing the unit, use caution when handling R-134a. The refrigerant when in contact with high temperatures (about 1000_F) will decompose into highly corrosive and toxic compounds.
WARNING
Be sure to avoid refrigerant coming in contact with the eyes. Should refrigerant come in contact with the eyes, wash eyes for a minimum of 15 minutes with potable water only. THE USE OF MINERAL OIL OR REFRIGERANT OILS IS NOT RECOMMENDED.
WARNING
Be sure to avoid refrigerant coming in contact with the skin. Should refrigerant come in contact with the skin, it should be treated as if the skin had been frostbitten or frozen.
WARNING
Be sure ventilation in the workspace is adequate to keep the concentration of refrigerant below 1000 parts per million. If necessary, use portable blowers.
WARNING
Beware of rotating fan blades and unannounced starting of fans. WARNING
Do not use a nitrogen cylinder without a pressure regulator. Never mix refrigerants with air for leak testing. It has been determined that pressurized, air-rich mixtures of refrigerants and air can undergo combustion when exposed to an ignition source.
WARNING
Never fill a refrigerant cylinder beyond its rated capacity. Cylinder may rupture due to excessive pressure when exposed to high temperatures.
WARNING
When starting the unit, be sure that all manual refrigerant valves in the discharge line are open. Severe damage could occur from extremely high refrigerant pressures.
T-268-07 |
Safety-2 |
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TABLE OF CONTENTS |
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Section |
Page |
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SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Safety-1 |
|
GENERAL SAFETY NOTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Safety-1 |
|
FIRST AID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Safety-1 |
|
OPERATING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Safety-1 |
|
MAINTENANCE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Safety-1 |
|
SPECIFIC WARNING AND CAUTION STATEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . |
Safety-2 |
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INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1-1 |
|
1.1 |
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1-1 |
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-1 |
|
2.1 |
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-1 |
2.2 |
REFRIGERATION SYSTEM DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-10 |
2.3 |
ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-11 |
2.4 |
POWER AUTOTRANSFORMER (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-12 |
2.5 |
UPPER FRESH AIR MAKEUP VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-13 |
2.6 |
LOWER FRESH AIR MAKEUP VENT (Optional) . . . . . . . . . . . . . . . . . . . . . . . . |
2-13 |
2.7 |
REFRIGERATION CIRCUIT WITH RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . |
2-14 |
2.8REFRIGERATION CIRCUIT WITH THE
|
WATER-COOLED CONDENSER (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-16 |
||
2.9 |
WATER-COOLED CONDENSER (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-16 |
||
|
2.9.1 |
Water-- |
Cooled Condenser with Water Pressure Switch (WP) . . . . . |
2-16 |
|
2.9.2 Water-Cooled Condenser with Condenser Fan Switch (CFS) . . . . . |
2-16 |
||
2.10 |
SUCTION SOLENOID VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-18 |
||
2.11 |
REMOTE MONITORING (OPTIONAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-18 |
||
2.12 |
SAFETY AND PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-19 |
||
MICROPROCESSOR . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-1 |
||
3.1 |
MICRO-LINK 2i CONTROLLER MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-1 |
||
|
3.1.1 |
Brief Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-1 |
|
|
3.1.2 Controller Programming (Memory) Cards . . . . . . . . . . . . . . . . . . . . . . |
3-2 |
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3.1.3 General Layout of the Controller Section . . . . . . . . . . . . . . . . . . . . . . . |
3-4 |
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3.1.4 |
Controller Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-6 |
|
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3.1.5 |
Controller Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-10 |
|
|
3.1.6 Condenser Pressure Control (CPC) . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-14 |
||
|
3.1.7 |
Controller Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-14 |
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|
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3.1.7.1 |
Perishable (Chill) Range Above --10_C (+14_F), |
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|
|
|
or --5_C (+23_F) Optionally. . . . . . . . . . . . . . . . . . . . . . . . . . |
3-14 |
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3.1.7.2 Frozen Range Below --10_C (+14_F), |
|
|
|
|
|
or --5_C (+23_F) Optionally . . . . . . . . . . . . . . . . . . . . . . . . . |
3-17 |
3.2 |
PRE-TRIP DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-17 |
||
|
3.2.1 |
Pre-Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-18 |
|
|
3.2.2 |
Pre-Trip Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-19 |
|
3.3 |
INTEGRATED DataCorder (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-24 |
TABLE OF CONTENTS
i |
T-268-07 |
TABLE OF CONTENTS (CONTINUED)
Section |
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Page |
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3.3.1 |
Brief Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-24 |
|
3.3.2 |
DataCORDER Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-25 |
|
3.3.3 |
DataCORDER Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-26 |
|
3.3.4 |
DataCORDER Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-27 |
|
3.3.5 |
Access to DataCORDER Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-29 |
|
3.3.6 |
USDA/ Message Trip Comment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-31 |
|
3.3.7 |
USDA Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-31 |
|
3.3.8 |
Pre-Trip Data Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-31 |
|
3.3.9 |
DataCORDER Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-31 |
|
3.3.10 |
DataCORDER Scrollback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-32 |
3.4 |
USDA COLD TREATMENT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-32 |
|
OPERATION . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-1 |
|
4.1 |
PRE-TRIP INSPECTION (Before Starting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-1 |
|
4.2 |
STARTING AND STOPPING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . |
4-2 |
|
4.3 |
AFTER STARTING INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-2 |
|
4.4 |
UNIT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-2 |
|
|
4.4.1 |
Crankcase Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-2 |
|
4.4.2 |
Probe Check Initiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-2 |
|
4.4.3 |
Cooling -- Controller Set BELOW --10_C (+14_F), or |
|
|
|
--5_C (+23_F) optionally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-3 |
|
4.4.4 |
Controller Set ABOVE --10_C (+14_F), or --5_C (+23_F) optionally |
4-3 |
|
4.4.5 |
Heating (See Figure 4-4.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-10 |
|
4.4.6 |
Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-12 |
|
4.4.7 |
Arctic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-12 |
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5-1 |
||
5.1 |
UNIT WILL NOT START OR STARTS THEN STOPS . . . . . . . . . . . . . . . . . . . . |
5-1 |
|
5.2 |
UNIT RUNS BUT HAS INSUFFICIENT COOLING . . . . . . . . . . . . . . . . . . . . . . |
5-1 |
|
5.3 |
UNIT OPERATES LONG OR CONTINUOUSLY IN COOLING . . . . . . . . . . . . |
5-1 |
|
5.4 |
UNIT WILL NOT HEAT OR HAS INSUFFICIENT HEATING . . . . . . . . . . . . . . |
5-2 |
|
5.5 |
UNIT WILL NOT TERMINATE HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5-2 |
|
5.6 |
UNIT WILL NOT DEFROST PROPERLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5-2 |
|
5.7 |
ABNORMAL PRESSURES (COOLING) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5-3 |
|
5.8 |
ABNORMAL NOISE OR VIBRATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5-3 |
|
5.9 |
TEMPERATURE CONTROLLER MALFUNCTION . . . . . . . . . . . . . . . . . . . . . . |
5-3 |
|
5.10 |
NO EVAPORATOR AIR FLOW OR RESTRICTED AIR FLOW . . . . . . . . . . . . |
5-3 |
|
5.11 |
THERMOSTATIC EXPANSION VALVE MALFUNCTION . . . . . . . . . . . . . . . . . |
5-4 |
|
5.12 |
POWER AUTOTRANSFORMER MALFUNCTION . . . . . . . . . . . . . . . . . . . . . . |
5-4 |
|
5.13 |
WATER-COOLED CONDENSER OR WATER PRESSURE SWITCH . . . . . . |
5-4 |
T-268-07 |
ii |
TABLE OF CONTENTS (CONTINUED)
Section |
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Page |
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SERVICE . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-1 |
|
6.1 |
MANIFOLD GAUGE SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-1 |
|
6.2 |
SUCTION AND DISCHARGE SERVICE VALVES . . . . . . . . . . . . . . . . . . . . . . . |
6-4 |
|
6.3 |
PUMPING THE UNIT DOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-4 |
|
6.4 |
REFRIGERANT LEAK CHECKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-4 |
|
6.5 |
EVACUATION AND DEHYDRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-5 |
|
|
6.5.1 |
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-5 |
|
6.5.2 |
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-5 |
|
6.5.3 |
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-5 |
6.6 |
REFRIGERANT CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-5 |
|
|
6.6.1 Checking the Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-5 |
|
|
6.6.2 Adding Refrigerant to System (Full Charge) . . . . . . . . . . . . . . . . . . . . |
6-8 |
|
|
6.6.3 Adding Refrigerant to System (Partial Charge) . . . . . . . . . . . . . . . . . . |
6-8 |
|
6.7 |
COMPRESSOR -- MODEL 06DR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-8 |
|
|
6.7.1 Removal and Replacement of Compressor . . . . . . . . . . . . . . . . . . . . . |
6-9 |
|
6.8 |
COMPRESSOR DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-9 |
|
6.9 |
COMPRESSOR REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-13 |
|
6.10 |
COMPRESSOR OIL LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-14 |
|
6.11 |
FILTER-DRIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-15 |
|
6.12 |
HIGH PRESSURE SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-15 |
|
|
6.12.1 Replacing High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-15 |
|
|
6.12.2 Checking High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-15 |
|
6.13 |
EVAPORATOR COIL AND HEATER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . |
6-16 |
|
6.14 |
EVAPORATOR COIL HEATERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-16 |
|
6.15 |
EVAPORATOR FAN AND MOTOR ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . |
6-16 |
|
6.16 |
EVAPORATOR FAN MOTOR CAPACITORS . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-17 |
|
6.17 |
CONDENSER COIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-18 |
|
6.18 |
CONDENSER FAN AND MOTOR ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . |
6-18 |
|
6.19 |
PARTLOW RECORDING THERMOMETER . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-18 |
|
6.20 |
SAGINOMIYA RECORDING THERMOMETER . . . . . . . . . . . . . . . . . . . . . . . . . |
6-20 |
|
6.21 |
MAINTENANCE OF PAINTED SURFACES . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-21 |
|
6.22 |
POWER AUTOTRANSFORMER (OPTIONAL) . . . . . . . . . . . . . . . . . . . . . . . . . |
6-21 |
|
6.23 |
SENSOR CHECKOUT PROCEDURE (AMBS, DTS, RRS, RTS, SRS & STS) |
6-21 |
|
|
6.23.1 Checking Sensor (RRS, RTS, SRS or STS) . . . . . . . . . . . . . . . . . . . . |
6-21 |
|
|
6.23.2 Replacing Sensor (STS and SRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-22 |
|
|
6.23.3 Replacing Sensor (RRS and RTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-23 |
|
|
6.23.4 Checking Sensor (AMBS or DTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-24 |
|
|
6.23.5Replacing Sensor (AMBS or DTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-24 |
|
6.24 |
SUCTION SOLENOID VALVE (SSV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-25 |
|
6.25 |
SUCTION MODULATION VALVE (SMV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-25 |
TABLE OF CONTENTS
iii |
T-268-07 |
TABLE OF CONTENTS (CONTINUED)
Section |
|
Page |
|
6.26 |
THERMOSTATIC EXPANSION VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-26 |
|
6.27 |
CONTROLLER/DATACORDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-28 |
|
|
6.27.1 |
Controller/DataCORDER Programming Procedure . . . . . . . . . . . . . . |
6-29 |
|
6.27.2 |
Controller Trouble-Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-29 |
6.28 |
WATER-COOLED CONDENSER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-30 |
|
ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . |
7-1 |
||
7.1 |
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
7-1 |
|
INDEX |
. . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Index-1 |
LIST OF ILLUSTRATIONS
Figure |
|
|
|
Page |
Figure 2-1 |
Refrigeration Unit -- Front . . . |
. . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . |
2-1 |
Figure 2-2 |
Refrigeration Unit -- Rear (Panels Removed) . . . |
. . . . . . . . . . . . . . . . . . . |
2-3 |
|
Figure 2-3 |
Compressor Section . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
2-4 |
Figure 2-4 |
Condenser Section . . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
2-5 |
Figure 2-5 |
Units with Receiver . . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
2-6 |
Figure 2-6 |
Units with Water-Cooled Condenser . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
2-7 |
|
Figure 2-7 |
Control Box on Units with a Single-Speed Compressor . . . . . . . . . . . . . |
2-8 |
||
Figure 2-8 |
Control Box on Units with a Two-Speed Compressor (Optional) . . . . . . |
2-9 |
||
Figure 2-9 |
Power Autotransformer (Optional) . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
2-12 |
|
Figure 2-10 |
Refrigeration Circuit with Receiver . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
2-15 |
|
Figure 2-11 |
Refrigeration Circuit with Water-Cooled Condenser (Optional) . . . . . . . |
2-17 |
||
Figure 3-1 |
Micro-Link 2i Controller/DataCORDER Module . . |
. . . . . . . . . . . . . . . . . . . |
3-1 |
|
Figure 3-1 |
Key Pad . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
3-4 |
Figure 3-2 |
Display Module . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
3-5 |
Figure 3-3 |
Standard Configuration Report Sample . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
3-34 |
|
Figure 3-4 |
Controller Set Point BELOW -- |
10_C (+14_F), or |
|
|
|
--5_C (+23_F) optionally . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
3-35 |
Figure 3-5 |
Controller Set Point ABOVE -- |
10_C (+14_F), or |
|
|
|
--5_C (+23_F) optionally . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
3-35 |
Figure 3-6 |
Two-Speed Compressor Speed Change Logic -- |
Perishable Range Only |
3-36 |
|
Figure 3-7 |
Two-Speed Compressor Speed Change Logic -- |
Frozen Range Only . |
3-37 |
|
Figure 4-1 |
Cooling in High Speed with Two-Speed Compressor . . . . . . . . . . . . . . . |
4-5 |
||
Figure 4-2 |
Cooling in Low Speed with Two-Speed Compressor . . . . . . . . . . . . . . . . |
4-7 |
||
Figure 4-3 |
Cooling with Single-Speed Compressor . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
4-9 |
|
Figure 4-4 |
Heating Mode . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
4-11 |
Figure 4-5 |
Defrost . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . |
4-13 |
T-268-07 |
iv |
LIST OF ILLUSTRATIONS (CONTINUED)
Figure |
|
Page |
Figure 6-1 |
Manifold Gauge Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-1 |
Figure 6-2 |
R-134a Manifold Gauge Set Connection . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-3 |
Figure 6-3 |
Suction or Discharge Service Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-4 |
Figure 6-4 |
Vacuum Pump Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-7 |
Figure 6-5 |
Compressor -- Model 06DR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-9 |
Figure 6-6 |
Exploded View of Valve Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-10 |
Figure 6-7 |
Bottom Plate Removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-10 |
Figure 6-8 |
Oil Pump and Bearing Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-11 |
Figure 6-9 |
Low Profile Gear Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-11 |
Figure 6-10 |
Motor End Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-11 |
Figure 6-11 |
Crankshaft Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-12 |
Figure 6-12 |
Removing Equalizing Tube and Lock Screw Assembly . . . . . . . . . . . . . . |
6-12 |
Figure 6-13 |
Terminal Mounting Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-12 |
Figure 6-14 |
Suction Valve & Positioning Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-13 |
Figure 6-15 |
Piston Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-13 |
Figure 6-16 |
Compressor Oil Pump End View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-14 |
Figure 6-17 |
Typical Setup for Testing High Pressure Switch . . . . . . . . . . . . . . . . . . . . |
6-15 |
Figure 6-18 |
Evaporator Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-17 |
Figure 6-19 |
Partlow Recording Thermometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-20 |
Figure 6-20 |
Saginomiya Recording Thermometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-21 |
Figure 6-21 |
Supply Sensor Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-22 |
Figure 6-22 |
Sensor (RRS, RTS, SRS or STS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-23 |
Figure 6-23 |
Sensor and Cable Assembly (RRS, RTS, SRS or STS) . . . . . . . . . . . . . |
6-23 |
Figure 6-24 |
Return Sensor Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-24 |
Figure 6-25 |
Sensor (AMBS or DTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-24 |
Figure 6-26 |
Sensor and Wire Assembly (AMBS or DTS) . . . . . . . . . . . . . . . . . . . . . . . |
6-24 |
Figure 6-27 Suction Solenoid Valve (SSV) -- Alco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-25 |
|
Figure 6-28 |
Suction Modulation Valve (SMV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-26 |
Figure 6-29 |
Thermostatic Expansion Valve -- Alco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-27 |
Figure 6-30 |
Thermostatic Expansion Valve Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-27 |
Figure 6-31 |
Controller side of the Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-28 |
Figure 6-32 |
Water-Cooled Condenser Cleaning -- Forced Circulation . . . . . . . . . . . . |
6-31 |
Figure 6-33 |
Water-Cooled Condenser Cleaning -- Gravity Circulation . . . . . . . . . . . . |
6-32 |
Figure 6-34 |
R-134a Compressor Pressure and Motor Current Curves Versus |
|
|
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-37 |
Figures 7-1/7-68 Electrical Schematic -- See Model Chart . . . . . . . . . . . . . . . . . . . . . |
7-2/7-137 |
TABLE OF CONTENTS
v |
T-268-07 |
LIST OF TABLES
Table |
|
|
|
Page |
Table 1-1 |
Model Chart . . . . . . . . . . . . . . |
. . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1-2 |
Table 2-1 |
Safety and Protective Devices . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2-19 |
|
Table 3-1 |
Controller Configuration Variables . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-3 |
|
Table 3-2 |
Key Pad Function . . . . . . . . . . |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-4 |
Table 3-3 |
Controller Function Code Assignments |
. . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-6 |
|
Table 3-4 |
Controller Alarm Indications . |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-11 |
Table 3-5 |
Pre-Trip Test Codes . . . . . . . . |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-19 |
Table 3-6 |
DataCORDER Function Code Assignments . . . . . . . . . . . . . . . . . . . . . . . |
3-26 |
||
Table 3-7 |
DataCORDER Alarm Indications . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-28 |
|
Table 3-8 |
DataCORDER Alarm Configurations . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-29 |
|
Table 3-9 |
DataCorder Standard Configuration . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-30 |
|
Table 3-10 |
DataCORDER Pre-Trip Data |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3-33 |
Table 4-1 |
Electrical Control Positions -- |
BELOW -- |
10_C (+14_F), or |
|
|
--5_C (+23_F) optionally . . . . . |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-14 |
Table 4-2 |
Electrical Control Positions -- |
ABOVE -- |
10_C (+14_F), or |
|
|
--5_C (+23_F) optionally . . . . . |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4-15 |
Table 6-1 |
AMBS, DTS, RRS, RTS, SRS and STS Temperature-Resistance Chart |
6-32 |
||
Table 6-2 |
Partlow Bulb Temperature-Resistance Chart . . . . . . . . . . . . . . . . . . . . . . . |
6-32 |
||
Table 6-3 |
Recommended Bolt Torque Values . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-33 |
|
Table 6-4 |
Wear Limits For Compressors . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-33 |
|
Table 6-5 |
Compressor Torque Values . . |
. . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-34 |
Table 6-6 |
Temperature-Pressure Chart -- R-134a |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6-35 |
T-268-07 |
vi |
SECTION 1
INTRODUCTION
1.1 INTRODUCTION
WARNING
It has been determined that pressurized, air-rich mixtures of refrigerants and air can undergo combustion when exposed to an ignition source.
This manual contains Operating Data, Electrical Data and Service Instructions for the refrigeration units listed in Table 1-1. Also, Table 1-1 charts some significant differences between these models.
NOTE
Beginning with early 1995 production, in addition to a model number, Carrier Transicold began using a parts identification (PID) number in the format NT0000. In the parts manual, the PID number is shown in boldface to point out parts variations within models. The PID number must be included when ordering and inquiring about your unit.
The unit, of lightweight aluminum frame construction, is an all electric, one piece, self-contained cooling and heating refrigeration unit. The unit is designed to fit in the front of a container and to serve as the container front wall. Forklift pockets are provided for installation and removal of the unit.
The unit is complete with a charge of R-134a, compressor lubricating oil (approved POE SW20 compressor oil for R-134a only), mode indicating lights, and temperature controller, and is ready for operation upon installation.
Some units are equipped with a two-speed compressor that is used to enhance power saving.
Some units are dual voltage units designed to operate on 190/230 or 380/460 volts AC, 3-phase, 50-60 hertz power (refer to section 2.4). Other units are designed to operate on 380/460 volts AC, 3-phase 50/60 hertz power only. An external autotransformer is required for 190/230 vac operation (refer to Figure 2-9 and section 2.4).
Operating control power is provided by a control transformer which steps down the AC supply power source to 18 and 24 volts AC, single phase control power.
The temperature Controller/DataCORDER (Micro-Link 2i) is a microprocessor-based controller and a integrated electronic data logging device. Refer to sections 3.1 and 3.3. Once the temperature controller is set at a desired container temperature, the unit will operate automatically to maintain the desired temperature within very close limits. The control system automatically selects cooling, holding or heating as necessary to maintain the desired temperature within the container.
WARNING
Beware of unannounced starting of the evaporator and condenser fans. Do not open the condenser fan grille before turning power OFF and disconnecting power plug.
Some units are equipped with a mechanical temperature recorder.
Some units may have a TransFRESH controlled atmosphere system added. Contact TransFRESH Corporation, P.O. Box 1788, Salinas, CA 93902 for information on their system.
SECTION 1
1-1 |
T-268-07 |
Table 1-1. Model Chart
MODEL |
|
USDA Cold Treatment |
Transformer |
Two-Speed Compessor |
Water-Cooled Condenser |
Condenser Coil |
Suction & Discharge Pressure Option |
Humidity Sensor |
TranFresh |
Communications Interface Module (CI) |
Partlow Temperature Recorder |
Saginomiya Temperature |
Recorder |
Electrical Wiring |
||
PID |
Schematics and |
|||||||||||||||
|
|
|||||||||||||||
|
|
|
|
Diagrams |
||||||||||||
|
|
2 Row |
4 Row |
|||||||||||||
|
|
|
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-1 |
NT0001 |
X |
P |
X |
P |
X |
--- |
--- |
X |
--- |
X |
X |
--- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
NT0062 |
X |
P |
X |
P |
X |
--- |
--- |
X |
--- |
X |
X |
--- |
|
Figure 7-1 & |
||
|
|
|||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Figure 7-2 |
|
69NT40-511-2 |
NT0002 |
X |
P |
X |
X |
X |
--- |
--- |
X |
--- |
X |
X |
--- |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
NT0017 |
X |
P |
X |
X |
X |
--- |
--- |
X |
--- |
X |
X |
--- |
|
|
||
|
|
|
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-3 |
NT0007 |
P |
P |
--- |
--- |
X |
--- |
--- |
X |
--- |
--- |
X |
--- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-4 |
NT0037 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
Figure 7-3 & |
|
|
NT0011 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
Figure 7-4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-5 |
NT0038 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
NT0099 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
Figure 7-9 & |
||
|
|
|||||||||||||||
|
|
Figure 7-10 |
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-6 |
NT0013 |
P |
P |
--- |
--- |
X |
--- |
--- |
X |
--- |
--- |
--- |
--- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-7 |
NT0014 |
X |
P |
--- |
--- |
X |
--- |
--- |
X |
--- |
--- |
--- |
--- |
|
Figure 7-3 & |
|
|
NT0005 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
Figure 7-4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69NT40-511-8 |
NT0037 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
NT0094 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
--- |
X |
--- |
|
Figure 7-9 & |
||
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Figure 7-10 |
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NT0064 |
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Figure 7-3 & |
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69NT40-511-9 |
NT0089 |
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P |
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Figure 7-4 |
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NT0152 |
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Figure 7-9 & |
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Figure 7-10 |
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NT0024 |
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NT0027 |
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Figure 7-3 & |
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NT0040 |
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Figure 7-4 |
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NT0041 |
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69NT40-511-10 |
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NT0104 |
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NT0112 |
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Figure 7-9 & |
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Figure 7-10 |
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NT0173 |
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Figure 7-19 & |
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NT0209 |
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Figure 7-20 |
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69NT40-511-11 |
NT0008 |
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Figure 7-3 & |
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NT0076 |
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69NT40-511-12 |
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Figure 7-4 |
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NT0082 |
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69NT40-511-13 |
NT0015 |
X |
P |
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Figure 7-5 & |
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NT0022 |
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P |
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Figure 7-6 |
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69NT40-511-14 |
NT0018 |
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69NT40-511-15 |
NT0029 |
P |
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NT0044 |
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NT0028 |
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Figure 7-3 & |
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69NT40-511-16 |
NT0054 |
P |
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Figure 7-4 |
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NT0070 |
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NT0083 |
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69NT40-511-17 |
NT0043 |
X |
P |
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Figure 7-1 & |
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Figure 7-2 |
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T-268-07 |
1-2 |
MODEL |
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ColdUSDA Treatment |
Transformer |
Speed-Two Compressor |
Cooled-Water Condenser |
Condenser Coil |
Discharge&Suction OptionPressure |
SensorHumidity |
TransFresh |
Communications ModuleInterface(CI) |
TemperaturePartlow Recorder |
Saginomiya Temperature Recorder |
Electrical Wiring |
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Row 2 |
Row 4 |
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Schematics and |
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Diagrams |
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69NT40-511-18 |
NT0035 |
P |
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69NT40-511-19 |
NT0037 |
P |
X |
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P |
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P |
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X |
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Figure 7-3 & |
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69NT40-511-21 |
NT0055 |
P |
X |
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P |
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P |
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Figure 7-4 |
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NT0046 |
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69NT40-511-22 |
NT0121 |
P |
X |
--- |
P |
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X |
A |
P |
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X |
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Figure 7-9 & |
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NT0139 |
P |
X |
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A |
P |
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X |
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Figure 7-10 |
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NT0252 |
P |
X |
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P |
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A |
P |
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Figure 7-41 & |
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Figure 7-42 |
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69NT40-511-23 |
NT0050 |
P |
X |
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NT0069 |
P |
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Figure 7-3 & |
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69NT40-511-24 |
NT0051 |
P |
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Figure 7-4 |
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69NT40-511-25 |
NT0053 |
P |
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1 |
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NT0047 |
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Figure 7-1 & |
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SECTION |
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69NT40-511-26 |
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NT0175 |
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Figure 7-21 & |
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Figure 7-22 |
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69NT40-511-27 |
NT0056 |
X |
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P |
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Figure 7-3 & |
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NT0057 |
P |
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Figure 7-4 |
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69NT40-511-28 |
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NT0132 |
P |
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Figure 7-9 & |
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Figure 7-10 |
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NT0059 |
P |
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Figure 7-3 & |
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69NT40-511-29 |
NT0219 |
P |
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X |
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Figure 7-19 & |
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Figure 7-20 |
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NT0343 |
P |
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P |
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Figure 7-57 & |
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Figure 7-58 |
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69NT40-511-30 |
NT0060 |
X |
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A |
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Figure 7-7 & |
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Figure 7-8 |
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69NT40-511-31 |
NT0061 |
P |
X |
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Figure 7-3 & |
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NT0067 |
P |
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P |
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P |
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Figure 7-4 |
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69NT40-511-32 |
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NT0097 |
P |
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Figure 7-9 & |
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NT0068 |
P |
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Figure 7-3 & |
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69NT40-511-33 |
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NT0239 |
P |
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Figure 7-41 & |
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Figure 7-42 |
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69NT40-511-34 |
NT0065 |
P |
P |
--- |
P |
X |
--- |
B |
P |
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X |
--- |
Figure 7-3 & |
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69NT40-511-35 |
NT0071 |
X |
P |
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P |
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Figure 7-4 |
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69NT40-511-36 |
NT0072 |
X |
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A |
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Figure 7-5 & |
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Figure 7-6 |
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69NT40-511-37 |
NT0073 |
X |
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P |
X |
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B |
X |
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--- |
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--- |
Figure 7-3 & |
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Figure 7-4 |
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1-3 |
T-268-07 |
MODEL |
|
USDA Cold Treatment |
Transformer |
Two-Speed Compressor |
Water-Cooled Condenser |
Condenser Coil |
Suction & Discharge Pressure Option |
Humidity Sensor |
TransFresh |
Communications Interface Module (CI) |
Partlow Temperature Recorder |
Saginomiya Temperature |
Recorder |
Electrical Wiring |
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PID |
Schematics and |
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Diagrams |
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2 Row |
4 Row |
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NT0074 |
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--- |
--- |
--- |
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X |
A |
X |
--- |
X |
--- |
--- |
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Figure 7-11 & |
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NT0135 |
X |
--- |
--- |
--- |
--- |
X |
A |
X |
--- |
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Figure 7-12 |
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NT0208 |
X |
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--- |
--- |
--- |
X |
A |
X |
--- |
X |
--- |
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Figure 7-31 & |
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Figure 7-32 |
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69NT40-511-38 |
NT0246 |
X |
--- |
--- |
--- |
--- |
X |
A |
X |
--- |
X |
--- |
--- |
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Figure 7-47 & |
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NT0253 |
X |
--- |
--- |
--- |
--- |
X |
A |
X |
--- |
X |
--- |
--- |
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Figure 7-48 |
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NT0267 |
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NT0307 |
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Figure 7-63 & |
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Figure 7-64 |
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NT0078 |
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Figure 7-3 & |
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69NT40-511-39 |
NT0084 |
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Figure 7-4 |
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NT0095 |
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Figure 7-9 & |
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Figure 7-10 |
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NT0079 |
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Figure 7-3 & |
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69NT40-511-40 |
NT0085 |
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Figure 7-4 |
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NT0096 |
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Figure 7-9 & |
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NT0080 |
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Figure 7-3 & |
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Figure 7-4 |
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NT0090 |
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Figure 7-65 & |
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Figure 7-66 |
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69NT40-511-42 |
NT0088 |
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Figure 7-3 & |
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69NT40-511-43 |
NT0081 |
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Figure 7-4 |
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NT0091 |
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Figure 7-9 & |
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NT0102 |
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Figure 7-10 |
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NT0137 |
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69NT40-511-44 |
NT0185 |
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Figure 7-19 & |
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NT0213 |
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Figure 7-41 & |
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NT0244 |
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Figure 7-42 |
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NT0266 |
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69NT40-511-45 |
NT0092 |
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Figure 7-3 & |
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69NT40-511-46 |
NT0110 |
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Figure 7-9 & |
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NT0098 |
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Figure 7-10 |
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NT0124 |
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69NT40-511-47 |
NT0146 |
P |
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Figure 7-23 & |
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NT0186 |
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Figure 7-19 & |
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69NT40-511-48 |
NT0101 |
P |
P |
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P |
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Figure 7-3 & |
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T-268-07 |
1-4 |
MODEL |
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ColdUSDA Treatment |
Transformer |
Speed-Two Compressor |
Cooled-Water Condenser |
Condenser Coil |
Discharge&Suction OptionPressure |
SensorHumidity |
TransFresh |
Communications ModuleInterface(CI) |
TemperaturePartlow Recorder |
Saginomiya Temperature Recorder |
Electrical Wiring |
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Row 2 |
Row 4 |
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PID |
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Schematics and |
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Diagrams |
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NT0103 |
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Figure 7-9 & |
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NT0134 |
P |
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Figure 7-10 |
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NT0184 |
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Figure 7-19 & |
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NT0216 |
P |
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P |
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Figure 7-20 |
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NT0268 |
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69NT40-511-49 |
NT0282 |
P |
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Figure 7-41 & |
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NT0283 |
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Figure 7-42 |
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NT0303 |
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NT0308 |
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Figure 7-57 & |
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NT0341 |
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Figure 7-58 |
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NT0345 |
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69NT40-511-50 |
NT0106 |
X |
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P |
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Figure 7-9 & |
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NT0178 |
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Figure 7-10 |
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NT0107 |
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Figure 7-13 & |
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Figure 7-14 |
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69NT40-511-51 |
NT0207 |
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Figure 7-45 & |
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Figure 7-46 |
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NT0417 |
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Figure 7-67 & |
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NT0109 |
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Figure 7-9 & |
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Figure 7-10 |
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NT0111 |
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Figure 7-3 & |
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69NT40-511-52 |
NT0133 |
P |
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Figure 7-9 & |
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NT0162 |
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Figure 7-19 & |
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NT0225 |
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Figure 7-41 & |
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Figure 7-42 |
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69NT40-511-53 |
NT0113 |
P |
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P |
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Figure 7-9 & |
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NT0118 |
P |
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69NT40-511-54 |
NT0136 |
P |
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P |
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NT0215 |
P |
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P |
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Figure 7-41 & |
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Figure 7-42 |
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NT0120 |
P |
--- |
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X |
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P |
--- |
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X |
--- |
Figure 7-9 & |
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Figure 7-10 |
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69NT40-511-55 |
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NT0188 |
P |
--- |
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X |
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P |
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Figure 7-19 & |
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Figure 7-20 |
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69NT40-511-56 |
NT0242 |
P |
P |
--- |
P |
--- |
X |
--- |
P |
X |
P |
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--- |
Figure 7-41 & |
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Figure 7-42 |
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69NT40-511-57 |
NT0156 |
P |
X |
--- |
P |
X |
--- |
--- |
P |
--- |
P |
X |
--- |
Figure 7-9 & |
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Figure 7-10 |
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1-5 |
T-268-07 |
MODEL |
|
USDA Cold Treatment |
Transformer |
Two-Speed Compressor |
Water-Cooled Condenser |
Condenser Coil |
Suction & Discharge Pressure Option |
Humidity Sensor |
TransFresh |
Communications Interface Module (CI) |
Partlow Temperature Recorder |
Saginomiya Temperature |
Recorder |
Electrical Wiring |
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PID |
Schematics and |
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Diagrams |
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2 Row |
4 Row |
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NT0105 |
P |
X |
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P |
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P |
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NT0122 |
P |
X |
--- |
P |
X |
--- |
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P |
--- |
P |
X |
--- |
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Figure 7-9 & |
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NT0138 |
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Figure 7-10 |
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NT0141 |
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NT0160 |
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Figure 7-19 & |
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NT0161 |
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Figure 7-20 |
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69NT40-511-58 |
NT0189 |
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NT0240 |
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Figure 7-41 & |
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NT0269 |
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Figure 7-42 |
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NT0309 |
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NT0340 |
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Figure 7-57 & |
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NT0386 |
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Figure 7-58 |
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NT0418 |
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NT0428 |
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NT0167 |
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Figure 7-9 & |
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NT0174 |
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Figure 7-19 & |
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69NT40-511-59 |
NT0211 |
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Figure 7-20 |
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NT0272 |
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Figure 7-41 & |
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NT0312 |
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Figure 7-57 & |
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69NT40-511-60 |
NT0125 |
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NT0153 |
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Figure 7-9 & |
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69NT40-511-61 |
NT0126 |
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Figure 7-10 |
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NT0154 |
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69NT40-511-62 |
NT0127 |
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Figure 7-17 & |
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NT0140 |
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Figure 7-9 & |
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Figure 7-10 |
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69NT40-511-63 |
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NT0192 |
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Figure 7-19 & |
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Figure 7-20 |
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69NT40-511-64 |
NT0131 |
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69NT40-511-65 |
NT0119 |
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Figure 7-9 & |
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NT0129 |
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69NT40-511-66 |
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Figure 7-10 |
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NT0147 |
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69NT40-511-67 |
NT0143 |
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69NT40-511-69 |
NT0177 |
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Figure 7-19 & |
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NT0241 |
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Figure 7-41 & |
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69NT40-511-70 |
NT0271 |
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Figure 7-42 |
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NT0311 |
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Figure 7-57 & |
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NT0353 |
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Figure 7-58 |
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T-268-07 |
1-6 |
MODEL |
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ColdUSDA Treatment |
Transformer |
Speed-Two Compressor |
Cooled-Water Condenser |
Condenser Coil |
Discharge&Suction OptionPressure |
SensorHumidity |
TransFresh |
Communications ModuleInterface(CI) |
TemperaturePartlow Recorder |
Saginomiya Temperature Recorder |
Electrical Wiring |
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Row 2 |
Row 4 |
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Schematics and |
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Diagrams |
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NT0166 |
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Figure 7-19 & |
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Figure 7-20 |
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69NT40-511-71 |
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NT0235 |
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Figure 7-41 & |
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Figure 7-42 |
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NT0157 |
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Figure 7-25 & |
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Figure 7-26 |
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NT0200 |
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Figure 7-33 & |
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Figure 7-34 |
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69NT40-511-73 |
NT0158 |
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Figure 7-9 & |
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69NT40-511-74 |
NT0159 |
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Figure 7-10 |
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NT0223 |
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Figure 7-19 & |
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69NT40-511-75 |
NT0163 |
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Figure 7-20 |
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69NT40-511-76 |
NT0169 |
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Figure 7-15 & |
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Figure 7-16 |
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SECTION |
69NT40-511-77 |
NT0176 |
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Figure 7-9 & |
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69NT40-511-78 |
NT0182 |
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Figure 7-10 |
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69NT40-511-79 |
NT0190 |
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Figure 7-39 & |
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Figure 7-40 |
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69NT40-511-80 |
NT0165 |
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Figure 7-9 & |
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Figure 7-10 |
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NT0151 |
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NT0168 |
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Figure 7-19 & |
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Figure 7-20 |
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69NT40-511-81 |
NT0180 |
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Figure 7-9 & |
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Figure 7-10 |
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NT0236 |
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Figure 7-41 & |
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NT0258 |
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Figure 7-42 |
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NT0187 |
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Figure 7-31 & |
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Figure 7-32 |
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69NT40-511-82 |
NT0198 |
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Figure 7-27 & |
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Figure 7-28 |
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NT0199 |
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Figure 7-35 & |
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Figure 7-36 |
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69NT40-511-83 |
NT0210 |
P |
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P |
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P |
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Figure 7-43 & |
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Figure 7-44 |
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NT0191 |
--- |
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P |
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P |
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Figure 7-19 & |
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Figure 7-20 |
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69NT40-511-84 |
NT0201 |
--- |
--- |
--- |
X |
--- |
X |
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P |
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P |
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--- |
Figure 7-41 & |
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Figure 7-42 |
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NT0334 |
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--- |
--- |
X |
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X |
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P |
--- |
P |
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Figure 7-57 & |
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Figure 7-58 |
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NT0183 |
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--- |
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P |
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Figure 7-31 & |
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NT0226 |
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Figure 7-32 |
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69NT40-511-85 |
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NT0280 |
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NT0317 |
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Figure 7-55 & |
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Figure 7-56 |
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69NT40-511-87 |
NT0214 |
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Figure 7-41 & |
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NT0212 |
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69NT40-511-89 |
Figure 7-42 |
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NT0243 |
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1-7 |
T-268-07 |
MODEL |
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USDA Cold Treatment |
Transformer |
Two-Speed Compressor |
Water-Cooled Condenser |
Condenser Coil |
Suction & Discharge Pressure Option |
Humidity Sensor |
TransFresh |
Communications Interface Module (CI) |
Partlow Temperature Recorder |
Saginomiya Temperature |
Recorder |
Electrical Wiring |
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PID |
Schematics and |
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69NT40-511-90 |
NT0222 |
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Figure 7-19 & |
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Figure 7-20 |
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NT0202 |
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Figure 7-37 & |
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Figure 7-38 |
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69NT40-511-91 |
NT0238 |
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Figure 7-51 & |
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NT0278 |
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Figure 7-52 |
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NT0318 |
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Figure 7-61 & |
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Figure 7-62 |
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69NT40-511-92 |
NT0218 |
P |
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Figure 7-41 & |
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69NT40-511-93 |
NT0197 |
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NT0204 |
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Figure 7-29 & |
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69NT40-511-94 |
NT0262 |
X |
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P |
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X |
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Figure 7-30 |
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NT0265 |
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NT0220 |
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Figure 7-19 & |
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Figure 7-20 |
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69NT40-511-95 |
NT0322 |
P |
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Figure 7-57 & |
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NT0344 |
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Figure 7-58 |
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NT0365 |
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69NT40-511-96 |
NT0224 |
P |
X |
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P |
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Figure 7-41 & |
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69NT40-511-97 |
NT0228 |
P |
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Figure 7-42 |
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NT0285 |
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NT0322 |
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Figure 7-57 & |
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Figure 7-58 |
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69NT40-511-98 |
NT0297 |
P |
X |
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P |
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69NT40-511-99 |
NT0245 |
X |
P |
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P |
X |
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Figure 7-41 & |
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69NT40-511-100 |
NT0247 |
P |
X |
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P |
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X |
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P |
X |
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Figure 7-42 |
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NT0250 |
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B |
P |
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69NT40-511-101 |
NT0298 |
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X |
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P |
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B |
P |
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NT0333 |
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X |
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P |
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B |
P |
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X |
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Figure 7-57 & |
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Figure 7-58 |
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69NT40-511-102 |
NT0251 |
P |
P |
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P |
X |
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P |
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NT0254 |
P |
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P |
X |
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P |
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P |
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Figure 7-41 & |
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69NT40-511-103 |
NT0259 |
P |
P |
--- |
P |
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X |
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P |
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Figure 7-42 |
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69NT40-511-104 |
NT0260 |
P |
X |
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P |
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69NT40-511-105 |
NT0274 |
X |
X |
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P |
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A |
P |
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X |
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Figure 7-53 & |
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Figure 7-54 |
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NT0263 |
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P |
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Figure 7-41 & |
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Figure 7-42 |
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69NT40-511-106 |
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NT0414 |
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P |
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P |
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Figure 7-57 & |
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NT0415 |
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P |
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P |
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Figure 7-58 |
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T-268-07 |
1-8 |
MODEL |
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ColdUSDA Treatment |
Transformer |
Speed-Two Compressor |
Cooled-Water Condenser |
Condenser Coil |
Discharge&Suction OptionPressure |
SensorHumidity |
TransFresh |
Communications ModuleInterface(CI) |
TemperaturePartlow Recorder |
Saginomiya Temperature Recorder |
Electrical Wiring |
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Row 2 |
Row 4 |
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PID |
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Schematics and |
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Diagrams |
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NT0275 |
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A |
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P |
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Figure 7-49 & |
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NT0277 |
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A |
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P |
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Figure 7-50 |
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69NT40-511-107 |
NT0315 |
P |
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NT0354 |
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Figure 7-59 & |
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NT0381 |
P |
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P |
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Figure 7-60 |
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NT0385 |
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69NT40-511-108 |
NT0264 |
P |
P |
--- |
P |
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X |
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P |
X |
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Figure 7-41 & |
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69NT40-511-109 |
NT0284 |
P |
P |
--- |
P |
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X |
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P |
X |
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Figure 7-42 |
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NT0288 |
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P |
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69NT40-511-110 |
NT0296 |
X |
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P |
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P |
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NT0347 |
X |
P |
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P |
X |
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Figure 7-41 & |
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NT0349 |
X |
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P |
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P |
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Figure 7-42 |
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NT0286 |
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P |
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69NT40-511-111 |
NT0295 |
X |
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P |
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NT0429 |
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P |
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P |
X |
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Figure 7-57 & |
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Figure 7-58 |
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NT0289 |
P |
P |
--- |
P |
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P |
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X |
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Figure 7-41 & |
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Figure 7-42 |
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69NT40-511-112 |
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NT0325 |
P |
P |
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P |
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P |
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Figure 7-57 & |
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Figure 7-58 |
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69NT40-511-113 |
NT0294 |
P |
X |
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X |
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X |
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X |
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P |
X |
--- |
Figure 7-41 & |
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NT0290 |
P |
P |
--- |
P |
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X |
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X |
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P |
X |
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Figure 7-42 |
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NTO326 |
P |
P |
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P |
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69NT40-511-114 |
NT0335 |
P |
--- |
--- |
--- |
--- |
X |
--- |
X |
--- |
P |
X |
--- |
Figure 7-57 & |
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NT0336 |
P |
--- |
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--- |
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X |
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X |
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X |
X |
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Figure 7-58 |
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NT0358 |
P |
P |
--- |
P |
--- |
X |
--- |
X |
X |
P |
X |
--- |
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69NT40-511-115 |
NT0299 |
P |
X |
--- |
P |
--- |
X |
A |
X |
--- |
P |
X |
--- |
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NT0300 |
P |
X |
--- |
P |
--- |
X |
--- |
X |
--- |
P |
X |
--- |
Figure 7-41 & |
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69NT40-511-116 |
NT0302 |
X |
P |
--- |
P |
X |
--- |
--- |
P |
--- |
P |
--- |
--- |
Figure 7-42 |
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69NT40-511-117 |
NT0348 |
X |
P |
--- |
P |
--- |
X |
--- |
X |
--- |
P |
X |
--- |
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69NT40-511-118 |
NT0387 |
P |
P |
--- |
P |
--- |
X |
--- |
P |
--- |
P |
X |
--- |
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NT0388 |
P |
P |
--- |
P |
--- |
X |
--- |
P |
--- |
P |
X |
--- |
Figure 7-57 & |
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69NT40-511-119 |
NT0389 |
P |
X |
--- |
P |
--- |
X |
--- |
P |
--- |
P |
X |
--- |
Figure 7-58 |
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69NT40-511-120 |
NT0410 |
--- |
P |
--- |
P |
X |
--- |
--- |
X |
--- |
--- |
--- |
--- |
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69NT40-521-10 |
NT0108 |
X |
X |
--- |
P |
X |
--- |
--- |
X |
--- |
X |
--- |
X |
Figure 7-9 & |
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Figure 7-10 |
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A-- Factory Installed Pressure Gauges
B-- Factory Installed Pressure Transducers.
P |
-- |
Provision. |
X |
-- |
Features that apply to model. |
1-9 |
T-268-07 |
SECTION 2
DESCRIPTION
2.1 GENERAL DESCRIPTION
a. Refrigeration Unit -- Front Section
The front section of the refrigeration unit shows access to most parts of the unit (i.e., compressor, condenser, receiver, etc.), which will be discussed in more detail of the following sections in 2.1. The upper access panels
allow front entry into the evaporator section, and the center access panel allows access to the thermostatic expansion valve and evaporator coil heaters. The unit model number, serial number and parts identification number will be found on the front of the unit to the left of the compressor.
9 |
10 |
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1
2
8 |
3 |
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7
6
5
4
SECTION 2
1. |
Access Panel (For Evap. Fan Motor #1) |
6. |
Interrogator Connector (Also see Figure 2-7) |
7. |
Mechanical Recording Thermometer -- Optional -- |
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2. |
Access Panel (For Heater & Thermostatic |
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(Partlow or Saginomiya) |
Expansion Valve) |
8. |
Lower Fresh Air Makeup Vent or Blank Plate -- |
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3. |
Fork Lift Pockets |
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Optional |
4. |
Unit Serial Number, Model Number and Parts |
9. |
Upper Fresh Air Makeup Vent and Access Panel |
Identification Number (PID) Plate |
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(For Evap. Fan Motor #2) |
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5. |
TransFRESH Communications Connector (TCC) |
10. |
Return Air Thermometer Port -- Optional |
-- |
Optional |
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Figure 2-1. Refrigeration Unit -- Front |
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2-1 |
T-268-07 |
b. Evaporator Section
The evaporator section contains the optional mechanical temperature recording bulb, return recorder sensor (RRS), return temperature sensor (RTS), thermostatic expansion valve, dual-speed evaporator fan motors and fans (2), evaporator coil and heaters, drain pan and heater, defrost termination sensor, heat termination thermostat, and heat exchanger. See Figure 2-2 and Figure 2-5 for sensor locations.
The evaporator fans circulate air throughout the container by pulling air in the top of the refrigeration unit, directing the air through the evaporator coil where it is either heated or cooled, and discharging the air through the bottom of the refrigeration unit into the container.
When transporting perishable (chilled) commodities, the fan motors will normally be in high speed above -10_C (+14_F), or -5_C (+23_F) optionally.
The evaporator coil heaters are accessible by removing the front lower access panel. The defrost termination sensor (DTS) is located on the coil center tube sheet and may be serviced by removing the upper rear panel, or by removing the left front upper access panel, disconnecting the evaporator fan connector and reaching through the access panel opening.
WARNING
Before servicing unit, make sure the unit circuit breakers (CB-1 & CB-2) and the start-stop switch (ST) are in the OFF position. Also disconnect power plug and cable.
T-268-07 |
2-2 |
4
3
8
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5
2
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19 |
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12
13
SECTION 2
1. |
Evaporator Fan Motor #1 (EM1) |
10. |
Evaporator Coil |
2. |
Humidity Sensor (HS) -- Optional |
11. |
Drain Pan Heater (DPH) |
3. |
Return Recorder Sensor (RRS) |
12. |
Thermostatic Expansion Valve |
4. |
Return Temperature Sensor (RTS) |
13. |
Heat Exchanger |
5. |
Mechanical Recording Thermometer Bulb |
14. |
Interrogator Receptacle (IC) -- Optional |
6. |
Mechanical Recording Thermometer Bulb -- |
15. |
USDA Probe Receptacle (PR2) -- Optional |
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Used on PID NT0073 |
16. |
USDA Probe Receptacle (PR1) -- Optional |
7. |
Evaporator Fan Motor #2 (EM2) |
17. |
USDA Probe Receptacle (PR3) -- Optional |
8. |
Defrost Termination Sensor (DTS) |
18. |
Cargo Probe Receptacle (PR4) -- Optional |
9. |
Heater Termination Thermostat (HTT) |
19. |
Evaporator Coil Heaters |
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Figure 2-2. Refrigeration Unit -- Rear (Panels Removed) |
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2-3 |
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T-268-07 |
c. Compressor Section |
the left of the compressor. |
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The compressor section includes the compressor, power |
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cable storage compartment, and an optional transformer |
This |
section |
also |
contains |
the |
optional |
(refer to Table 1-1 and Figure 2-9), which is located to |
discharge/suction pressure transducers. |
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1
2
3
10 11
9
4 8
5
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6 |
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7 |
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1. |
Power Autotransformer -- Optional |
7. |
Compressor Crankcase Heater (CCH) -- Optional |
2. |
Power Cables and Plug |
8. |
Compressor Motor (CP) |
3. |
Compressor Sight Glass View Port |
9. |
Discharge Service Valve |
4. |
Compressor Guard |
10. |
Discharge Pressure Transducer (DPT) -- Optional |
5. |
Suction/Discharge Pressure Gauges -- Optional |
11. |
Suction Pressure Transducer (SPT) -- Optional |
6. |
Suction Service Valve |
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Figure 2-3. Compressor Section
T-268-07 |
2-4 |
d. Condenser Section
The condensing section consists of a condenser fan motor, a condenser fan and an air-cooled condenser coil.
6
3 |
5 |
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1 |
4 |
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2
2
When the unit is operating, air is pulled in the bottom of the coil and discharged horizontally out through the front of the condenser fan grille.
7
8
SECTION 2
1. |
Grille and Venturi Assembly |
5. |
Condenser Fan Motor (CM) |
2. |
Retaining Screw |
6. |
Condenser Coil Cover |
3. |
Condenser Fan |
7. |
Condenser Coil |
4. |
Key |
8. |
Condenser Motor Mount Bracket |
Figure 2-4. Condenser Section
2-5 |
T-268-07 |
e. Receiver Section
The receiver section consists of quench expansion valve, manual liquid line valve, filter-drier, receiver with sight glass/moisture-liquid indicator, condenser pressure transducer (CPT), fusible plug, suction modulation valve, suction solenoid valve, and
6
5
3 4
2
1
18
19
17 |
16 |
1.Discharge Pressure Regulator Valve
2.Suction Modulation Valve (SMV)
3.Schrader Valve
4.Supply Air Thermometer Port -- Optional
5.Suction Solenoid Valve (SSV)
6.Quench Expansion Valve
7.Electro-Coated Modular Receiver
8.Sight Glass
9.Fusible Plug
10.Condenser Pressure Transducer (CPT) --
discharge pressure regulator valve.
The supply temperature sensor (STS), supply recorder sensor (SRS) and ambient sensor (AMBS) are located at the right side of the compressor.
7
8
9
10
11
12
13
14
15
Located on back side of Receiver)
11.Sight Glass/Moisture Indicator
12.Filter-Drier
13.Manual Liquid Line Valve
14.Ambient Sensor (AMBS)
15.Supply Temperature Sensor (STS)
16.Supply Recorder Sensor (SRS)
17.High Pressure Switch (HPS)
18.Thermistor Sensor (CPDS)
19.Thermistor Sensor (CPSS)
Figure 2-5. Units with Receiver
T-268-07 |
2-6 |
f. Water-Cooled Condenser Section (Optional)
The water-cooled condenser section consists of water-cooled condenser, sight glass, moisture-liquid indicator, quench expansion valve, rupture disc, condenser pressure transducer (CPT), filter-drier, suction modulation valve, suction solenoid valve,
7
6
5
4
3
1 2
19
18
17
16
15
discharge pressure regulator valve, water hook-up couplings and water pressure switch.
The supply temperature sensor (STS), supply recorder sensor (SRS) and ambient sensor (AMBS) are located at the right side of the compressor.
8
9
10
11
12
13
14
1. |
Discharge Pressure Regulator Valve |
11. |
Supply Air Thermometer Port -- Optional |
2. |
Suction Modulation Valve (SMV) |
12. |
Coupling (Water In) |
3. |
Schrader Valve |
13. |
Self Draining Coupling (Water Out) |
4. |
Rupture Disc |
14. |
Water Pressure Switch (WPS) |
5. |
Condenser Pressure Transducer (CPT) |
15. |
Sight Glass |
6. |
Suction Solenoid Valve (SSV) |
16. |
Water-Cooled Condenser |
7. |
Quench Expansion Valve |
17. |
Supply Recorder Sensor (SRS) -- Optional |
8. |
Filter-Drier |
18. |
Supply Temperature Sensor (STS) |
9. |
Manual Liquid Line Valve |
19. |
Ambient Sensor (AMBS) |
10. |
Moisture-Liquid Indicator |
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Figure 2-6. Units with Water-Cooled Condenser |
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2-7 |
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T-268-07 |
SECTION 2
g. Control Box with a Single-Speed Compressor
The control box includes the manual switches, circuit breaker(s), contactors, transformer, fuses, key pad, display module, current sensor module,
1 |
2 |
3 |
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Controller/DataCORDER module (See Figure 2-7), an optional remote monitoring unit (CI), and an optional emergency bypass cooling switch (EB), emergency defrost switch (ED) and emergency defrost fuse (FED).
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12 |
11 |
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1. |
Compressor Contactor (CH) |
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13. |
Manual Defrost Switch (MDS) |
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2. |
Hour Meter (HM) -- Optional |
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14. |
Condenser Fan Switch (CFS) -- Optional |
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3. |
Heat Contactor (HR) |
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15. |
Controller/DataCORDER Battery Pack -- Optional |
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4. |
Display Module |
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16. |
Interrogator Connector -- Optional location for |
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5. |
Remote Monitoring Unit (RMU) -- Optional |
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some models |
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6. |
Controller/DataCORDER Module |
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17. |
Control Transformer (TR) |
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7. |
Emergency Bypass Cooling Switch (EB)--Optional |
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18. |
Evaporator Fan Contactor (EF) High Speed |
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8. |
Emergency Defrost Fuse (FED) -- Optional |
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19. |
Evaporator Fan Contactor (ES) Low Speed |
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9. |
Emergency Defrost Switch (ED) -- Optional |
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20. |
Condenser Fan |
Contactor (CF) |
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10. |
Key Pad |
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21. |
Circuit Breaker (CB-1) -- 460V |
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11. |
Start-Stop Switch (ST) |
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22. |
Current Sensor Module (CS) |
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12. Remote Monitoring Receptacle (RM) -- Optional |
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Figure 2-7. Control Box on Units with a Single-Speed Compressor |
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T-268-07 |
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2-8 |
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h. Control Box with a Two-Speed Compressor (Optional)
The control box includes the manual switches, circuit breaker(s), contactors, transformer, fuses, key pad,
1 |
2 |
3 |
4 |
display module, current sensor module, Controller/DataCORDER module (See Figure 2-8), and an optional remote monitoring unit (CI).
5 |
6 |
7 |
8 |
CAUTION: DO NOT MANUALLY
ENGAGE CONTACTORS
SECTION 2
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18 |
17 |
16 |
15 |
14 |
13 |
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11 |
10 |
9 |
1. |
Compressor Contactor (CH) High Speed |
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10. |
Manual Defrost Switch (MDS) |
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2. |
Compressor Contactor (CL) Low Speed |
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11. |
Remote Monitoring Receptacle (RM) -- Optional |
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3. |
Compressor Contactor (SC) Shorting |
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12. |
Controller/DataCORDER Battery Pack -- Optional |
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4. |
Heat Contactor (HR) |
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13. |
Control Transformer (TR) |
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5. |
Display Module |
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14. |
Evaporator Fan Contactor (EF) High Speed |
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6. |
Remote Monitoring Unit (RMU) -- Optional |
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15. |
Evaporator Fan Contactor (ES) Low Speed |
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7. |
Controller/DataCORDER Module |
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16. |
Condenser Fan Contactor (CF) |
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8. |
Key Pad |
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17. |
Circuit Breaker (CB-1) -- 460V |
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9. |
Start-Stop Switch (ST) |
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18. |
Current Sensor Module (CS) |
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Figure 2-8. Control Box on Units with a Two-Speed Compressor (Optional)
2-9 |
T-268-07 |
2.2 |
REFRIGERATION SYSTEM DATA |
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Number of Cylinders |
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6 |
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Model |
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06DR |
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CFM |
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41 |
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Weight (Dry) |
118 kg (260 lb) - Single-Speed |
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i. |
Compressor/Motor Assembly |
129.39 kg (285.25 lb) - Two-Speed |
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Approved Oil |
Castrol Icematic -- SW20 |
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Oil Charge |
3.6 liters (7.6 U.S. pints) |
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The oil level range, with the compressor off, |
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Oil Sight Glass |
should be between the bottom and one-eighth |
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level of the capacity of the sight glass. |
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Verify at --18 _C |
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j. |
Expansion Valve Superheat |
(0 _F) container box |
4.48 to 6.67 _C (8 to 12 _F) |
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temperature |
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k. Heater Termination Thermostat |
Opens |
54 (¦ 3) _C = 130 (¦ 5) _F |
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Closes |
38 (¦ 4) _C = 100 (¦ 7) _F |
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l. |
High Pressure Switch |
Cutout |
25 (¦ 1.0) kg/cm@ = 350 (¦ 10) psig |
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Cut-In |
18 (¦ 0.7) kg/cm@ = 250 (¦ 10) psig |
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Unit Configuration |
Charge Requirements -- R-134a |
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2* row condenser |
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4* row condenser |
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m. Refrigerant Charge |
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Water-Cooled |
4.5 kg (9.0 lbs) |
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5.22 kg (11.5 lbs) |
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Condenser |
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Receiver |
3.74 kg (8.25 lbs) |
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4.88 kg (10.75 lbs) |
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* Refer to Table 1-1. |
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NOTE |
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When replacing the components (n.), (o.) and (p.) in section 2.2, refer to the installation instructions |
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included with the ordered new part for additional information. |
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n. Fusible Plug |
Melting point |
99 _C = (210 _F) |
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Torque |
6.2 to 6.9 |
mkg (45 to 50 ft-lbs) |
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o. Sight Glass/Moisture Indicator |
Torque |
8.9 to 9.7 |
mkg (65 to 70 ft-lbs) |
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Bursts at |
35 5% kg/cm@ = (500 5% psig) |
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Torque |
1.4 to 2 mkg (10 to 15 ft-lbs) |
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p. Rupture Disc |
(P/N 14-00215-03) |
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Torque |
6.2 to 6.9 |
mkg (45 to 50 ft-lbs) |
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(P/N 14-00215-04) |
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The condenser fan will start if the condenser |
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Condenser Fan Starts |
pressure is greater than 14.06 kg/cm@ (200 |
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psig) OR the condenser fan is OFF for more |
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q. Condenser Pressure |
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than 60 seconds. |
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Transducer (CPT) |
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The condenser fan will stop if the condenser |
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Condenser Fan Stops |
pressure is less than 9.14 kg/cm@ (130 psig) |
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AND the condenser fan remains ON for at least |
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30 seconds. |
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r. |
Unit Weight |
Refer to unit model number plate, see Figure 2-1 for location of plate. |
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s. Water Pressure Switch |
Cut-In |
0.5 ¦ 0.2 kg/cm@ (7 ¦ 3 psig) |
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(Optional) |
Cutout |
1.6 ¦ 0.4 kg/cm@ (22 ¦ 5 psig) |
T-268-07 |
2-10 |
2.3 ELECTRICAL DATA |
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CB-1 Trips at |
29 amps |
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a. Circuit Breaker |
CB-2 (50 amp) Trips at |
62.5 amps |
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CB-2 (70 amp) Trips at |
87.5 amps |
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b. Compressor |
Full Load Amps (FLA) |
17.6 amps @ 460 vac |
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Motor |
(with current limiting set at 21 amps) |
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380 vac, 3 Phase, 50 hz |
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460 vac, 3 Phase, 60 hz |
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Full Load Amps |
1.3 amps |
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1.6 amps |
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c. Condenser Fan |
Horsepower |
0.43 hp |
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0.75 hp |
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Rotations Per Minute |
1425 rpm |
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1725 rpm |
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Motor |
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Voltage and Frequency |
360 -- 460 vac ¦ 1.25 hz |
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400 -- 500 vac ¦ 1.5 hz |
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Bearing Lubrication |
Factory lubricated, additional grease not required. |
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Rotation |
Counter-clockwise when viewed from shaft end. |
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Number of Heaters |
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1 |
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d. Drain Pan Heaters |
Rating |
750 watts +5 /--10 % @ 460 vac |
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Resistance (cold) |
285 ¦ 7.5% ohms nominal |
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Type |
Sheath |
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Number of Heaters |
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4 |
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e. Evaporator Coil |
Rating |
750 watts +5/--10% each @ 230 vac |
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Resistance (cold) |
66.8 to 77.2 ohms |
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Heaters |
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Ambient |
@ 20 _C (68 _F) |
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Type |
Sheath |
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380 vac, 3 Phase, 50 hz |
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460 vac, 3 Phase, 60 hz |
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2 |
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Full Load Amps -- High |
1.6 amps |
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2.0 amps |
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SECTION |
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Speed |
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Full Load Amps -- Low |
0.8 amps |
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1.0 amps |
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Speed |
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Nominal Horsepower -- |
0.70 hp |
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0.84 hp |
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High Speed |
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Nominal Horsepower -- |
0.09 hp |
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0.11 hp |
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f. Evaporator Fan |
Low Speed |
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Motor(s) |
Rotations Per Minute -- |
2850 rpm |
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3450 rpm |
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High Speed |
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Rotations Per Minute -- |
1425 rpm |
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1750 rpm |
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Low Speed |
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Voltage and Frequency |
360 -- 460 vac ¦ 1.25 hz |
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400 -- 500 vac ¦ 1.5 hz |
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Voltage and Frequency -- |
180 -- 230 vac ¦ 1.25 hz |
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200 -- 250 vac ¦ 1.5 hz |
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using modular transformer |
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Bearing Lubrication |
Factory lubricated, additional grease not required |
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Rotation |
Clockwise when viewed from shaft end. |
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g. Fuses |
Control Circuit |
15 amps (F3) |
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Controller/DataCORDER |
5 amps (F1 & F2) |
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h. Compressor Crankcase Heater (CCH) -- |
180 watts @ 460 vac |
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Optional |
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2-11 |
T-268-07 |