Carrier TRANSICOLD 69NT40-531 Series User manual

T-292 Rev C Change 03/05
Carrier
Transicold
Container
Refrigeration
Operation
& Service
Models
69NT40-531-001 to 199
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OPERATION AND SERVICE MANUAL
CONTAINER REFRIGERATION UNIT
MODELS
69NT40-531-001 to 199
Carrier Transicold. A member of the United Technologies Corporation family. Stock symbol UTX.
Carrier Transicold Divsion, Carrier Corporation, P.O. Box 4805, Syracuse, N.Y. 13221 U. S. A.
ã2003 CarrierCorporation DPrinted in U. S. A. 04/03
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T-292
Safety-1
SAFETY SUMMARY
GENERAL SAFETY NOTICES
The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this
manual. They arerecommendedprecautions thatmust beunderstoodandappliedduringoperationandmaintenance
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 workshould beperformed onthe unit untilall circuit breakers, 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, disconnecting and securing the power plug.
Be sure poweris 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.
Donotbypassanyelectricalsafetydevices,e.g.bridginganoverload,orusinganysortofjumperwires.Problemswith
the system should be diagnosed, and any necessary repairs performed, by qualified service personnel.
Whenperforminganyarc weldingontheunit orcontainer,disconnect allwire harnessconnectors fromthemodulesin
both control boxes. 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).
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
Beware of unannounced starting ofthe evaporatorand condenser fans. The unit may cycle the fans
and compressor unexpectedly as control requirements dictate.
WARNING
Donotattempttoremovepowerplug(s)beforeturningOFFstart-stopswitch(ST),unitcircuitbreak-
er(s) and external power source.
WARNING
Make sure the power plugs are clean and dry before connecting to any power receptacle.
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Safety-2
T-292
WARNING
Make sure that the unit circuit breaker(s) (CB-1 & CB-2) and the START-STOP switch (ST) are in the
“O” (OFF) position before connecting to any electrical power source.
WARNING
Never use air for leak testing. It has been determined that pressurized, mixtures of refrigerant and air
can undergo combustion when exposed to an ignition source.
WARNING
Make sure power to the unit is OFF and power plug disconnected before replacing the compressor.
WARNING
Before disassembly of the compressor make sure to relieve the internal pressure very carefully by
slightly loosening the couplings to break the seal.
WARNING
Oakite No. 32 is an acid. Be sure that the acid is slowly added to the water. DO NOT PUT WATER INTO
THE ACID -- this will cause spattering and excessive heat.
WARNING
Wearrubberglovesandwashthesolutionfromtheskinimmediatelyifaccidental contact occurs. Do
not allow the solution to splash onto concrete.
WARNING
Always turn OFF the unit circuit breakers (CB-1 & CB-2) and disconnect main power supply before
working on moving parts.
WARNING
Make sure power to the unit is OFF and power plug disconnected before removing capacitor(s).
WARNING
With power OFF discharge the capacitor before disconnecting the circuit wiring.
WARNING
Donotuseanitrogencylinderwithoutapressure regulator. Do not use oxygen in or near a refrigera-
tion system as an explosion may occur.
WARNING
Do not open the condenser fan grille before turning power OFF and disconnecting power plug.
WARNING
The Unit Power Plug Must Be Disconnected To Remove Power From Circuit Breaker Cb1
CAUTION
Do not remove wire harnesses from controller modules unless you are grounded to the unit frame
with a static safe wrist strap.
CAUTION
Unplug all controllermodule wire harness connectors beforeperforming arc welding on any part of
the container.
CAUTION
Whencondenserwaterflowisbelow11lpm(3gpm)orwhenwater-cooledoperationisnotinuse,the
CFS switch MUST be set to position ”1” or the unit will not operate properly.
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T-292
Safety-3
CAUTION
Pre-trip inspection should not be performed with critical temperature cargoes in the container.
CAUTION
When Pre-Trip key is pressed, economy, dehumidification and bulb modewill be deactivated. At the
completion of Pre-Trip activity, economy, dehumidification and bulb mode must be reactivated.
CAUTION
When a failure occurs during automatic testing the unit will suspend operation awaiting operator
intervention.
CAUTION
When Pre--Trip testAuto 2runs to completion without being interrupted, the unitwill terminatepre-
tripanddisplay“Auto2”“end.”The unitwill suspendoperation untilthe userdepresses the ENTER
key!
CAUTION
To prevent trapping liquid refrigerant in the manifold gauge set be sure set is brought to suction
pressure before disconnecting.
CAUTION
The scroll compressor achieves low suction pressure very quickly. Do not use the compressor to
evacuate the system below zero psig. Never operate the compressor with the suction or discharge
service valves closed (frontseated). Internal damage will result from operating the compressor in a
deep vacuum.
CAUTION
UseonlyCarrier Transicold approved Polyol EsterOil (POE) -- Castrol-Icematic SW20 compressoroil
with R-134a. Buy in quantities of one quart or smaller. When using this hygroscopic oil, immediately
reseal. Do not leave container of oil open or contamination will occur.
CAUTION
Take necessary steps (place plywood over coil or use sling on motor) to prevent motor from falling
into condenser coil.
CAUTION
DO NOT disassemble piston from NEW suction modulating valve powerhead assembly. Doing so
may result in damage to piston.
CAUTION
The unit must be OFF whenever a programming card is inserted or removed from the controller pro-
gramming port.
CAUTION
Do not allow moisture to enter wire splice area as this may affect the sensor resistance.
CAUTION
Do not allow the recorder stylus to snap back down. The stylus arm base is spring loaded, and
damage may occur to the chart, or the stylus force may be altered.
CAUTION
Theinsidemechanismoftherecorder,particularlytheinsideoftheelementhousingshouldneverbe
oiled, however, control mechanisms should be sprayed periodically (every 60 days) with corrosion
inhibiting CRC 3-36a or 6-66 or LPS no. 2.
CAUTION
Recorderelementcapillarytubing maybebent,butneversharper than 1/2” radius; extra careshould
be taken when bending adjacent to welds. The bulb should never be bent, as this will affect
calibration.
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iT--292
TABLE OF CONTENTS
PARAGRAPH NUMBER Page
GENERAL SAFETY NOTICES Safety-1............................................................
FIRST AID Safety-1.............................................................................
OPERATING PRECAUTIONS Safety-1............................................................
MAINTENANCE PRECAUTIONS Safety-1..........................................................
SPECIFIC WARNING AND CAUTION STATEMENTS Safety-1........................................
INTRODUCTION 1-1..............................................................................
1.1 INTRODUCTION 1-1.....................................................................
1.2 CONFIGURATION IDENTIFICATION 1-1...................................................
1.3 OPTION DESCRIPTIONS 1-1.............................................................
1.3.1 Battery 1-1...........................................................................
1.3.2 Dehumidification 1-1..................................................................
1.3.3 Control Box 1-1......................................................................
1.3.5 Pressure Readout 1-1.................................................................
1.3.6 USDA 1-1...........................................................................
1.3.7 Interrogator 1-1.......................................................................
1.3.8 Remote Monitoring 1-1................................................................
1.3.9 Communications 1-1..................................................................
1.3.10 Compressor 1-1......................................................................
1.3.11 Condenser Coil 1-1...................................................................
1.3.12 Autotransformer 1-2...................................................................
1.3.13 Temperature Recorder 1-2.............................................................
1.3.14 Gutters 1-2..........................................................................
1.3.15 Handles 1-2..........................................................................
1.3.16 Thermometer Port 1-2.................................................................
1.3.17 Water Cooling 1-2....................................................................
1.3.18 Back Panels 1-2......................................................................
1.3.19 460 Volt Cable 1-2...................................................................
1.3.20 230 Volt Cable 1-2....................................................................
1.3.21 Cable Restraint 1-2...................................................................
1.3.22 Upper Air (Fresh Air Make Up) 1-2......................................................
1.3.23 Lower Air (Fresh Air Make Up) 1-2......................................................
1.3.24 Controlled Atmosphere 1-2.............................................................
1.3.25 Power Correction 1-2..................................................................
1.3.26 Evaporator 1-2.......................................................................
1.3.27 Evaporator Fan Operation 1-2..........................................................
1.3.28 Labels 1-2...........................................................................
1.3.29 Emergency Bypass 1-2................................................................
DESCRIPTION 2-1...............................................................................
2.1 GENERAL DESCRIPTION 2-1.............................................................
2.1.1 Refrigeration Unit -- Front Section 2-1...................................................
2.1.2 Fresh Air Makeup Vent 2-1.............................................................
2.1.3 Evaporator Section 2-2................................................................
2.1.4 Compressor Section 2-3...............................................................
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ii
T--292
TABLE OF CONTENTS
PARAGRAPH NUMBER Page
2.1.5 Air Cooled Condenser Section 2-4......................................................
2.1.6 Water-Cooled Condenser Section 2-5...................................................
2.1.7 Control Box Section 2-6...............................................................
2.1.8 Communications Interface Module 2-6...................................................
2.2 REFRIGERATION SYSTEM DATA 2-7......................................................
2.3 ELECTRICAL DATA 2-8...................................................................
2.4 SAFETY AND PROTECTIVE DEVICES 2-9.................................................
2.5 REFRIGERATION CIRCUIT 2-10...........................................................
2.5.1 Standard Operation 2-10................................................................
2.5.2 Economized Operation 2-10.............................................................
2.5.3 Unloaded Operation 2-10...............................................................
MICROPROCESSOR 3-1..........................................................................
3.1 TEMPERATURE CONTROL MICROPROCESSOR SYSTEM 3-1..............................
3.1.1 Key Pad 3-2.........................................................................
3.1.2 Display Module 3-2...................................................................
3.1.3 Controller 3-3........................................................................
3.2 CONTROLLER SOFTWARE 3-3...........................................................
3.2.1 Configuration Software (Configuration Variables) 3-3......................................
3.2.2 Operational Software (Function codes) 3-4...............................................
3.3 MODES OF OPERATION 3-4.............................................................
3.3.1 Temperature Control -- Perishable Mode 3-4..............................................
3.3.2 Defrost Interval 3-4...................................................................
3.3.3 Failure Action 3-4.....................................................................
3.3.4 Generator Protection 3-4..............................................................
3.3.5 Compressor High Temperature, Low Pressure Protection. 3-4..............................
3.3.6 Perishable Mode -- Conventional 3-4....................................................
3.3.7 Perishable Mode -- Economy 3-5.......................................................
3.3.8 Perishable Mode -- Dehumidification 3-5.................................................
3.3.9 Perishable, Dehumidification -- Bulb Mode 3-5............................................
3.3.10 Temperature Control -- Frozen Mode 3-6.................................................
3.4 CONTROLLER ALARMS 3-6..............................................................
3.5. UNIT PRE-TRIP DIAGNOSTICS 3-7.......................................................
3.6 DataCORDER 3-7........................................................................
3.6.1 Description 3-7.......................................................................
3.6.2 DataCORDER Software 3-7............................................................
3.6.3 Sensor Configuration (dCF02) 3-8......................................................
3.6.4 Logging Interval (dCF03) 3-10...........................................................
3.6.5 Thermistor Format (dCF04) 3-10.........................................................
3.3.11 Frozen Mode -- Conventional 3-6.......................................................
3.6.6 Sampling Type (dCF05 & dCF06) 3-10...................................................
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