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Carrier 69NT40-541-001, Operation And Service

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T-316

TABLE OF CONTENTS

PARAGRAPH NUMBER

PAGE

SAFETY SUMMARY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1–1

1.1

GENERAL SAFETY NOTICES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1–1

1.2

FIRST AID  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1–1

1.3

OPERATING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1–1

1.4

MAINTENANCE PRECAUTIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1–1

1.5

UNIT LABEL IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

1.6

SPECIFIC WARNING AND CAUTION STATEMENTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1–2

INTRODUCTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.1

INTRODUCTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.2

CONFIGURATION IDENTIFICATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3

OPTION DESCRIPTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.1

Battery  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.2

Dehumidification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.3

Control Box  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.4

Temperature Readout  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.5

Pressure Readout  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.6

USDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.7

Interrogator  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–1

2.3.8

Remote Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2

2.3.9

Communications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2

2.3.10 Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.11 Condenser Coil  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.12 Autotransformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.13 Temperature Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.14 Gutters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.15 Handles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.16 Thermometer Port  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.17 Water Cooling  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.18 Back Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.19 460 Volt Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.20 230 Volt Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.21 Cable Restraint  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–2
2.3.22 Upper Air (Fresh Air Make Up)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
2.3.23 Lower Air (Fresh Air Make Up)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
2.3.24 Arctic Mode  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.25 Power Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.26 Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.27 Evaporator Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.28 Labels  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.29 Plate Set  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.30 Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3
2.3.31 Condenser Grille  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2–3

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3–1

3.1

GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3–1

Summary of Contents for 69NT40-541-001

Page 1: ...Container Refrigeration OPERATIONS AND SERVICE For 69NT40 541 001 TO 199 Container Refrigeration Units T 316 Rev D...

Page 2: ......

Page 3: ...OPERATIONS AND SERVICE For 69NT40 541 001 TO 199 Container Refrigeration Units 2017 Carrier Corporation Printed in USA July 2017...

Page 4: ......

Page 5: ...1 2 3 7 Interrogator 2 1 2 3 8 Remote Monitoring 2 2 2 3 9 Communications 2 2 2 3 10 Compressor 2 2 2 3 11 Condenser Coil 2 2 2 3 12 Autotransformer 2 2 2 3 13 Temperature Recorder 2 2 2 3 14 Gutters...

Page 6: ...Temperature Control Perishable Mode 4 5 4 3 2 Evaporator Fan Operation 4 5 4 3 3 Defrost Interval 4 5 4 3 4 Failure Action 4 5 4 3 5 Generator Protection 4 5 4 3 6 Condenser Pressure Control 4 6 4 3 7...

Page 7: ...rt Temperature Recorder 5 5 5 7 4 Complete Inspection 5 6 5 8 PRE TRIP DIAGNOSIS 5 6 5 9 OBSERVE UNIT OPERATION 5 8 5 9 1 Crankcase Heater 5 8 5 9 2 Probe Check 5 8 5 10 SEQUENCE OF OPERATION 5 8 5 10...

Page 8: ...Compressor Oil Level 7 16 7 9 HIGH PRESSURE SWITCH 7 17 7 9 1 Replacing High Pressure Switch 7 17 7 9 2 Checking High Pressure Switch 7 17 7 10 CONDENSER COIL 7 17 7 11 CONDENSER FAN AND MOTOR ASSEMBL...

Page 9: ...ensor Re Installation 7 34 7 22 VENT POSITION SENSOR VPS 7 35 7 23 ELECTRONIC PARTLOW TEMPERATURE RECORDER 7 36 7 23 1 Replacing the Recorder 7 37 7 23 2 Changing the Chart 7 37 7 23 3 Adjusting the R...

Page 10: ...T 316 vi...

Page 11: ...5 7 Frozen Mode 5 12 Figure 5 8 Defrost 5 13 Figure 7 1 Service Valve 7 1 Figure 7 2 Manifold Gauge Set 7 2 Figure 7 3 R 134a Manifold Gauge Hose Set 7 3 Figure 7 4 Refrigeration System Service Connec...

Page 12: ...essure and Motor Current Curves vs Ambient Temp 1 of 2 7 48 Figure 7 34 R 134a Compressor Pressure and Motor Current Curves vs Ambient Temp 2 of 2 7 49 Figure 8 1 LEGEND 8 2 Figure 8 2 SCHEMATIC DIAGR...

Page 13: ...Test Codes 4 27 Table 4 8 DataCORDER Function Code Assignments 4 32 Table 4 9 DataCORDER Pre Trip Result Records 4 33 Table 4 10 DataCORDER Alarm Indications 4 34 Table 5 1 Pre Trip Selection Menu 5 6...

Page 14: ......

Page 15: ...ndenser fan grille or evaporator access panels before turning power off disconnecting and securing the power plug Be sure power is turned off before working on motors controllers solenoid valves and e...

Page 16: ...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 testi...

Page 17: ...re removing capaci tor s WARNING With power OFF discharge the capacitor before disconnecting the circuit wiring WARNING The unit power plug must be disconnected to remove power from circuit breaker CB...

Page 18: ...y cycle operation as required to maintain temperature within required limits CAUTION The unit will remain in the DEFROST mode as long as the emergency defrost switch is in the DEFROST position To prev...

Page 19: ...emble piston from NEW suction modulating valve power head assembly Doing so may result in damage to piston CAUTION The unit must be OFF whenever a program ming card is inserted or removed from the con...

Page 20: ......

Page 21: ...provides information on specific optional equipment factory provision to allow for field installation of optional equipment and differences in detailed parts Configuration identification for the mode...

Page 22: ...the controls The dif ferent gutters include standard length bolted gutters extended length gutters and riveted gutters 2 3 15 Handles The unit may be equipped with handles to facilitate access to stac...

Page 23: ...wn the unit On units equipped with Single Evaporator Fan Capability additional relays are installed to allow the unit to continue to operate on a single fan 2 3 28 Labels Operating Instruction and Fun...

Page 24: ......

Page 25: ...p Vent The function of the upper or lower makeup air vent is to provide ventilation for commodities that require fresh air circulation Figure 3 1 Refrigeration Unit Front Section 1 Access Panel Evap F...

Page 26: ...mponents are accessible by removing the upper rear panel as shown in the illustration or by removing the front access panels Figure 3 2 Evaporator Section 1 Evaporator Fan Motor 1 2 Return Recorder Se...

Page 27: ...r Section 1 Autotransformer 2 Power Cables and Plug 3 Compressor Sight Glass View Port 4 Compressor Guard 5 Supply Temperature Sensor 6 Supply Recorder Sensor 7 Ambient Sensor 8 Supply Air Thermometer...

Page 28: ...and it is discharged horizontally out through the condenser fan grille Figure 3 4 Air Cooled Condenser Section 1 Grille and Venturi Assembly 2 Condenser Fan 3 Key 4 Condenser Fan Motor 5 Condenser Coi...

Page 29: ...ater couplings and water pressure switch The water cooled condenser replaces the standard unit receiver Figure 3 5 Water Cooled Condenser Section 1 Sight Glass 2 Water Cooled Condenser 3 Rupture Disc...

Page 30: ...ower line Refer to the master system technical manual for further information Figure 3 6 Control Box Section 1 Compressor Contactor 2 Heater Contactor 3 Display Module 4 Communications Interface Modul...

Page 31: ...tallation instructions included with the replacement part for additional information f Fusible Plug Melting point 99 C 210 F Torque 6 2 to 6 9 mkg 45 to 50 ft lbs g Sight Glass Moisture Indicator Torq...

Page 32: ...s Number of Heaters 0 or 1 Rating 750 watts 5 10 460 vac Resistance cold 285 7 5 ohms 20 C 68 F Type Sheath e Evaporator Coil Heaters Number of Heaters 4 or 6 Rating 750 watts 5 10 each 230 vac Resist...

Page 33: ...ater 180 watts 460 vac i Humidity Sensor Orange wire Power Red wire Output Brown wire Ground Input voltage 5 vdc Output voltage 0 to 3 3 vdc Output voltage readings verses relative humidity RH percent...

Page 34: ...ring periods of low load the suction modulating valve decreases flow of refrigerant to the compressor This action balances the compressor capacity with the load and prevents operation with low coil te...

Page 35: ...GHT GLASS FUSIBLE PLUG RECEIVER SERVICE VALVE WATER COOLED CONDENSER PRESSURE REGULATOR TXV TXV BULB EVAPORATOR CONDENSER PRESSURE TRANSDUCER PRESSURE TRANSDUCER SERVICE VALVE PRESSURE REGULATOR EVAPO...

Page 36: ......

Page 37: ...esired cargo temperature and humidity The DataCORDER software functions to record unit operating parameters and cargo temperature parameters for future retrieval Coverage of the temperature con trol s...

Page 38: ...tional manual defrost switch was toggled on Enter Confirms a selection or saves a se lection to the controller Arrow Up Change or scroll a selection upward Pre trip advance or test interruption Arrow...

Page 39: ...URE display is the reading at the supply air probe This LED will flash if dehumidification or humidification is enabled 6 Return Yellow LED Energized when the return air probe is used for control When...

Page 40: ...de a Pre Trip step by step checkout of refrigeration unit performance including proper component operation electronic and refrigeration control operation heater operation probe calibration pressure li...

Page 41: ...additional relays are installed to allow the unit to continue to operate on a single fan Refer to Table 4 4 4 3 3 Defrost Interval Controller function code Cd27 sets two modes for defrost initiation...

Page 42: ...ters When pulling down from a temperature that is more than 5 C 9 F above set point the SMV will open to reduce the pulldown time However pressure and current limit functions may restrict the valve if...

Page 43: ...vent rapid cycling and consequent contactor wear They are 1 Heater debounce timer three minutes 2 Out of range timer five minutes The heater debounce timer is started whenever the heater contactor sta...

Page 44: ...event rapid cycling of the compressor a three minute compressor off time must be satisfied before the com pressor will restart Under a condition of rapidly changing return air temperature the time del...

Page 45: ...ctive when all of the sensors are not responding Check the connector at the back of the controller if it is loose or unplugged reconnect it Then run a pretrip test P5 to clear AL26 4 5 UNIT PRE TRIP D...

Page 46: ...e following functions a Logs data at 15 30 60 or 120 minute intervals and stores two years of data based on one hour interval b Records and displays alarms on the display module c Records results of p...

Page 47: ...2 Descriptions of DataCORDER operation for each variable setting are provided in the following paragraphs 4 6 3 Sensor Configuration dCF02 Two modes of operation may be configured the Standard Mode a...

Page 48: ...Supply temperature sensor 17 Defrost temperature sensor 18 Discharge pressure transducer 19 Suction pressure transducer 20 Condenser pressure transducer NOTE Bit mapped require special handling if us...

Page 49: ...20 Controller Serial 04163552 Bill of Lading 1 Origin Origin Date Destination Discharge Date Comment DataLine Tool Probe Calibration Readings USDA1 0 0 USDA2 0 0 USDA3 0 0 Cargo 0 0 Temperature Units...

Page 50: ...ip The data is time stamped and may be extracted via the Data Retrieval program Refer to Table 4 9 for a description of the data stored in the DataCORDER for each corresponding Pre Trip test 4 6 8 Dat...

Page 51: ...ment screen view of the data hard copy report generation cold treat ment probe calibration and file management Refer to Data Retrieval manual 62 10629 for a more detailed expla nation of the DataLINE...

Page 52: ...mum message length is 78 characters Only one message will be recorded per day 4 6 12 USDA Cold Treatment Procedure The following is a summary of the steps required to initiate a USDA Cold Treatment a...

Page 53: ...e cleared The exception to this rule is the DataCORDER Alarm Queue Full alarm AL91 which does not have to be inactive in order to clear the alarm list To Clear the Alarm List 1 Press the ALT MODE ALAR...

Page 54: ...on Temperature Display Option Out In CnF28 Bulb Mode Option NOr bULb CnF29 Arctic Mode Out In CnF30 Compressor Size 41 CFM 37 CFM CnF31 Probe Check Option Std SPEC CnF32 Single Evaporator Fan Option 2...

Page 55: ...ill be halved if either fuse F1 or F2 is bad alarm code AL21 Cd09 Ambient Temperature The ambient sensor reading is displayed Cd10 Compressor Suction Temperature Compressor suction temperature sensor...

Page 56: ...reading falls below set point If the reading of DTS rises above set point any time during the timer count down the interval is reset and the count down begins over If DTS fails alarm code AL60 is acti...

Page 57: ...ed code Cd36 then set point rang es from 60 to 95 When TEST is selected or test set point is entered the heat LED should illuminate indicating that dehumidification mode is activated After a period of...

Page 58: ...vent will remain closed User Allows for manual selection of the setting Delay The opening of the door is based on selected time return temperature and flow rate percent opened gASLM The opening is ba...

Page 59: ...ening of the compressor motor internal protector This alarm will disable all control units except for the evapora tor fans and will re main active until the motor protector resets This alarm triggers...

Page 60: ...58 F or if the probe check logic has determined there is a fault with this sensor If Alarm 54 is activated and the primary supply is the control sensor the secondary supply sensor will be used for con...

Page 61: ...unit changing the current limit via the code select Cd32 or if the suction modulation valve SMV is open beyond the controller desired point AL64 Discharge Temperature Over Limit Alarm 64 is triggered...

Page 62: ...failed EER 6 IO Board failure Internal program update failure EER 7 Controller failure Internal version firmware incompatible EER 8 DataCorder failure Internal DataCorder memory failure EER 9 Control...

Page 63: ...ithin the range specified P3 Low Speed Evaporator Fans Requirements The unit must be equipped with a low speed evaporator fan as determined by the Evaporator Fan speed select configuration variable If...

Page 64: ...e alarms P 6 Not Applicable P6 0 Compressor On Setup A current draw test is performed before the compressor is started The compressor is started SMV is opened and another current draw test is per form...

Page 65: ...at the unit is operat ing with a water cooled condenser Pass Fail Criteria Under conditions of the above NOTE the test imme diately fails if the following inputs are sensed to be invalid Compressor di...

Page 66: ...t the actual value recorded in the DataCORDER will be an aver age of only this test s results Once a recording interval is complete the av erage recorder supply temperature will be recorded in the Dat...

Page 67: ...d P10 2 and the right display will show return air tem perature The unit will then be required to maintain 17 7 C 0 F tempera ture within 0 5 C 0 9 F of set point until a DataCORDER recording is execu...

Page 68: ...t this time dC26 27 S N Left 4 Right 4 The DataCORDER serial number consists of eight characters Function code dC26 contains the first four characters Function code dC27 contains the last four charact...

Page 69: ...0 Compressor On Pass Fail Skip Result Change in currents for Phase A B and C 6 1 Not Applicable Not Used 6 2 Suction Modulation Valve Open and Closed Pass Fail Skip Result Is current or pressure limit...

Page 70: ...his time dAL78 85 Network Data Point 1 8 Out of Range The network data point is outside of its specified range The DataCORDER is configured by default to record the supply and return recorder sensors...

Page 71: ...for loose electrical connections or hardware d Check color of moisture liquid indicator e Check oil level in compressor sight glass 5 2 CONNECT POWER WARNING Do not attempt to remove power plug s be...

Page 72: ...ential which will vary depending on the container and how the con tainer is loaded Units may be equipped with a Vent Position Sensor VPS The VPS determines the position of the fresh air vent upper or...

Page 73: ...ut NOTE The main air slide is in the fully closed position during reduced air flow operation c Adjustment The air slide is supplied with two adjustable air control discs The fresh air makeup can be ad...

Page 74: ...such as in a ship s hold If water cooled operation is desired connect in accordance with the following sub paragraphs 5 4 1 Water Cooled Condenser with Water Pressure Switch a Connect the water suppl...

Page 75: ...ART STOP switch in position 0 OFF 5 7 START UP INSPECTION 5 7 1 Physical Inspection a Check rotation of condenser and evaporator fans b Check compressor oil level Refer to Section 5 7 5 7 2 Check Cont...

Page 76: ...enu The user may have the option of selecting one of three automatic tests depending on software revision installed These tests will automatically perform a series of indi vidual pre trip tests The us...

Page 77: ...without a failure the unit will exit the pre trip mode and return to normal con trol operation If configuration variable CnF42 is set to IN a DataCORDER trip start will be entered If CnF42 is set to...

Page 78: ...al If the probe check option is configured for special the above criteria are applicable A defrost with probe check will be initiated if 25 of 30 readings or 10 consecutive readings are outside of the...

Page 79: ...5 9 T 316 Figure 5 3 Controller Operation Perishable Mode Figure 5 4 Controller Operation Frozen Mode...

Page 80: ...et point and 0 SMV position is reached the controller periodically records the supply air temperature set point and time A calculation is then performed by subtracting the set point reading from the s...

Page 81: ...ulate air throughout the container c A safety heater termination thermostat HTT attached to an evaporator coil support will open the heating circuit if overheating occurs Figure 5 6 Perishable Mode He...

Page 82: ...t switch function if equipped is initiated by the user Through the use of the keypad or manual defrost switch if equipped NOTE The Manual Defrost Interval key can be used to initiate a manual defrost...

Page 83: ...he Defrost Tem perature Sensor is at or below 10 C 50 F Once the timer has counted the required time the unit will enter defrost if the Defrost Temperature Sensor is at or below 25 6 C 78 F Defrost wi...

Page 84: ...tion and close to provide power to the compressor contactor 3 The condenser fan contact will close to energize the condenser contactor and provide power to the con denser fan motor 4 The evaporator fa...

Page 85: ...Heat termination thermostat open Replace Compressor hums but does not start Low line voltage Check Single phasing Check Shorted or grounded motor windings 7 8 Compressor seized 7 8 6 2 UNIT OPERATES...

Page 86: ...ive 7 15 Heater contactor or coil defective Replace Evaporator fan motor s defective or rotating backwards 7 15 7 16 Evaporator fan motor contactor defective Replace Controller malfunction 6 9 Defecti...

Page 87: ...tricted air flow 7 15 Excessive frost on evaporator coil 6 6 Evaporator fan s rotating backwards 7 16 3 Discharge pressure regulator valve defective Replace Suction modulation valve malfunction 7 18 S...

Page 88: ...gn material in valve High suction pressure with low superheat Superheat setting too low 7 14 External equalizer line plugged Ice holding valve open Open Foreign material in valve 7 14 Liquid slugging...

Page 89: ...iquid line service valves see Figure 7 1 are provided with a double seat and a gauge connection which enable servicing of the compressor and refrigerant lines Turning the valve stem clockwise all the...

Page 90: ...hose set is available from Carrier Transicold Carrier Transicold P N 07 00294 00 which includes items 1 through 6 Figure 7 3 To perform service using the manifold gage hose set do the following a Prep...

Page 91: ...ion is brought to the tool being used To connect the manifold gauge hose set do the following 1 Remove service valve stem caps and check to make sure they are backseated Remove service port caps See F...

Page 92: ...backseat the high side service valve 2 Midseat both hand valves on the manifold gauge set and allow the pressure in the manifold gauge set to be drawn down to suction pressure This returns any liquid...

Page 93: ...ut refrigerant charge the system with refrigerant 134a to build up pressure between 2 1 to 3 5 kg cm 30 to 50 psig Remove refrigerant cylinder and leak check all connections NOTE Only refrigerant 134a...

Page 94: ...ump and electronic vacuum gauge valves if they are not already open Start the vacuum pump Evacuate unit until the electronic vacuum gauge indicates 2000 microns Close the electronic vac uum gauge and...

Page 95: ...aws In the U S A refer to EPA section 608 a Connect the gauge manifold to the compressor dis charge and suction service valves For units operating on a water cooled condenser change over to air cooled...

Page 96: ...for use on replacement compressor 3 Check oil level in service replacement compressor Refer to Section 7 8 6 4 A compressor terminal wiring kit must be ordered as a separate item when ordering replac...

Page 97: ...box es to compressor and connect all wiring per wiring diagram Install junction box cover s m Install mounting bolts in service valves and torque to 2 77 to 4 15 mkg 20 30 ft lb n Install a new filter...

Page 98: ...7 6 Refer to Table 7 6 and Table 7 7 for compressor wear limits and bolt torque values a Place the compressor in a position where it will be convenient to drain the oil Remove the oil fill plug see Fi...

Page 99: ...ove the bot tom plate oil suction screen and screen hold down plate Inspect the screen for holes or an accumulation of dirt The screen can be cleaned with a suitable solvent e Match mark each connecti...

Page 100: ...al parts are not available If the pump requires inspection or cleaning disassemble and reassemble by referring to Figure 7 10 Clean all parts and coat all moving parts with compressor oil before proce...

Page 101: ...upon reassembly j Block the compressor crankshaft so that it cannot turn Use a screwdriver to bend back the tabs on the lock washer and remove the equalizer tube and lock screw assembly See Figure 7...

Page 102: ...he proper compressor oil before assembly Refer to Table 7 7 for applicable compressor torque values 7 8 4 Preparation a Suction and Discharge Valves If the valve seats look damaged or worn replace val...

Page 103: ...b Install the pump end thrust washer on the two dowel pins located on the bearing head See Figure 7 9 CAUTION Ensure that thrust washer does not fall off dowel pins while installing oil pump CAUTION T...

Page 104: ...taken to ensure the manifold common connection remains immersed in oil at all times Otherwise air and moisture will be drawn into the compressor Crack the suction service valve and gauge valve to ven...

Page 105: ...pressor pressure c Connect hose to a cylinder of dry nitrogen See Figure 7 16 Figure 7 16 High Pressure Switch Testing d Set nitrogen pressure regulator at 26 4 kg cm 375 psig with bleed off valve clo...

Page 106: ...r bolts Install venturi Apply Loctite H to fan set screws Adjust fan within venturi so that the outer edge of the fan projects 3 2 to 6 4 mm 3 16 1 16 back from edge of the venturi Spin fan by hand to...

Page 107: ...l be highly useful Summary of Procedure a Drain water from condenser tubing circuit Clean water tubes with Oakite No 22 to remove mud and slime b Flush c De scale water tubes with Oakite No 32 to remo...

Page 108: ...ding upon the extent of the deposits One way to determine when de scaling has been completed is to titrate the solution periodically using titrating equipment provided free by the Oakite Technical Ser...

Page 109: ...Filter Drier 1 Test for a restricted or plugged filter drier by feeling the liquid line inlet and outlet connections of the drier cartridge If the outlet side feels cooler than the inlet side then the...

Page 110: ...ature pressure chart Table 7 8 determine the saturation temperature corresponding to the evaporator outlet test pressures at the suction modulation valve Subtract the saturation temperatures determine...

Page 111: ...ushion clamps on inlet and outlet lines 7 Braze the equalizer connection to the equalizer line 8 Check superheat refer to Section 7 14 1 9 Check superheat Refer to Section 7 14 2 step Section 7 14 1 C...

Page 112: ...t The air is forced through the evaporator coil where it is either heated or cooled and then discharged out the bottom of the refrigera tion unit into the container The fan motor bearings are factory...

Page 113: ...pounds e Install the evaporator fan assembly in reverse order of removal Torque the four 1 4 20 clamp bolts to 0 81 mkg 70 inch pounds Apply power momentarily to check for proper fan rotation refer t...

Page 114: ...t ohmmeter set on RX 10 000 ohms Connect ohmmeter leads across the capacitor terminals and observe the meter needle If the capacitor is good the needle will make a rapid swing toward zero resistance a...

Page 115: ...tor EC Make sure that the wires terminate in accordance with the wire markings addresses h Attach a manifold gauge set If the unit is operating in the perishable mode proceed to step i If the unit is...

Page 116: ...b evacuate low side and open all service valves WARNING DO NOT disassemble piston from NEW suction modulating valve powerhead assembly Doing so may result in damage to piston 7 18 3 Checking The Contr...

Page 117: ...nnectors before performing arc welding on any part of the container The guidelines and cautions provided herein should be followed when handling the Controller DataCORDER mod ule These precautions and...

Page 118: ...the control ler water tank heater relay TQ is open or closed TP 7 This test point is not used in this application TP 8 This test point is not applicable to the units covered herein TP 9 This test poin...

Page 119: ...ssage bAd CArd Turn start stop switch OFF and remove the card 5 Press the ENTER key on the keypad 6 The Display module will go blank briefly and then dis play 541 00 Based on the operational software...

Page 120: ...7 20 and remove controller to gain access to the sensor plugs e Using the plug connector marked EC that is connected to the back of the controller locate the sensor wires RRS RTS SRS STS AMBS DTS CPDS...

Page 121: ...he cap and grommet assembly onto the replacement sensor If the replacement sensor is of a larger diameter than the original a different grommet may be required h Slip crimp fittings over dressed wires...

Page 122: ...ined see Figure 7 27 b Sensor RTS RRS Reinstall the return sensor as shown in Figure 7 28 For proper placement of the return sensor be sure to position the seal section of the sensor against the side...

Page 123: ...Box assembly mounting bolts and pull Partlow box assembly away from unit If unit is not equipped with Partlow remove left hand access panel to obtain clearance behind Fresh Air make up assembly 3 Remo...

Page 124: ...e synchronize the chart will not advance to present time the pen tip will move to the currently recorded temperature and the recorder will resume normal temperature recording If using the Electronic P...

Page 125: ...the above steps 7 23 2 Changing the Chart NOTE To prevent recorder corrosion it is important to assure the door is securely closed at all times after completing the chart change a Lift the stylus item...

Page 126: ...great wrinkling or tearing of the paper chart may occur 7 23 4 Re zeroing the Recording Thermometer For Electronic Partlow Recorder CTD P N 12 00464 xx Where xx an odd number example 12 00464 03 NOTE...

Page 127: ...tretch and position the cloth over the area to be re paired and secure it with masking tape d Make up sufficient epoxy glue to cover the cloth by mixing equal parts of resin and hardener Saturate the...

Page 128: ...ately 20 minutes 7 25 5 Door Hinge Inserts If the door hinges have been pulled from the control box drill and reinstall the hinge as shown in Figure 7 30 and described in the following steps Figure 7...

Page 129: ...34 06231 03 10 4 Insert 25 15 x 7 54 mm 990 x 297 in 10 24 Threads 34 06231 04 10 5 Insert 10 16 x 9 53 mm 400 x 375 in 10 24 Threads 34 06231 05 10 6 Insert 12 7 x 9 91 mm 5 x 390 in 1 4 20 Threads 3...

Page 130: ...T 316 7 42 Figure 7 31 Insert Location 03 03 03 03 03 04 04 03 01 07 07 05 05 06 INSERT PART NUMBERS 34 06231 WHERE THE IS AS INDICATED...

Page 131: ...ield Open high voltage shield c Remove the circuit breaker panel with circuit breaker from the control box d Locate wires CB21 CIA3 CB22 CIA5 and CB23 CIA7 that have been tied back in the wire harness...

Page 132: ...r is suspected of malfunction you may choose to simply replace it Direct replacement requires a capacitor of the same value Two methods for checking capacitor function are 1 Volt ohmmeter set on RX 10...

Page 133: ...567 6 47 3 64 1 9 16 12 752 4 62 7 85 5 8 11 1214 4 101 2 137 2 3 4 10 1636 8 136 4 184 9 Table 7 6 Wear Limits For Compressors PART NAME FACTORY MAXIMUM FACTORY MINIMUM MAXIMUM WEAR BEFORE REPAIR in...

Page 134: ...4 Pipe Plug Gauge Connection 1 4 20 10 12 13 16 Connecting Rod Capscrew 1 4 28 12 15 16 20 Baffle Plate Crankcase 12 16 16 22 Side Shield 6 10 8 13 Oil Pump Drive Segment 12 16 16 22 Unloader Valve 5...

Page 135: ...20 0 0 20 0 20 70 21 71 1 490 2 5 00 4 90 6 21 3 7 25 5 0 26 0 26 75 24 78 7 542 6 5 53 5 43 4 20 4 6 31 7 0 32 0 32 80 27 86 7 597 8 6 10 5 98 2 19 5 6 36 6 0 39 0 39 85 29 95 3 657 1 6 70 6 57 0 18...

Page 136: ...Note Curves to be used as troubleshooting guide only for model series 69NT40 with fresh air makeup vent closed unit powered on 460 VAC 60hz and SMV 100 open Compressor Discharge Pressure Versus Ambie...

Page 137: ...28 14 0 14 28 41 0_F 17 8_C Box 48 9 43 3 37 8 32 2 26 7 21 1 15 6 _C 35_F 1 7_C Box Compressor Suction Pressure Versus Ambient Air Temperature at Stable Box Temperature 8 9 10 11 12 13 14 15 16 17 60...

Page 138: ......

Page 139: ...igure 8 4 Supplements the other schematic diagrams and provides schematics for Upper and Lower VPS and TransFRESH Figure 8 5 Supplements the other schematic diagrams and provides schematics Emergency...

Page 140: ...MIDITY POWER TRANSFORMER Figure 8 4 HR HEATER CONTACTOR M 13 P 3 LEGEND SYMBOL DESCRIPTION Schematic Location HS HUMIDITY SENSOR G 20 HST HOSE HEATER SAFETY THERMOSTAT G 14 HTT HEAT TERMINATION THERMO...

Page 141: ...8 3 T 316 Figure 8 2 SCHEMATIC DIAGRAM...

Page 142: ...T 316 8 4 Figure 8 3 SCHEMATIC DIAGRAM Units with Single Evaporator Fan Capability...

Page 143: ...8 5 T 316 Figure 8 4 SCHEMATIC DIAGRAM TransFRESH and Vent Position Sensors VPS TO KB7 TransFRESH Controller ST SEE FIGURE 7 2 TR SEE FIGURE 7 2 Lower Air Exchange VPS Upper Air Exchange VPS...

Page 144: ...T 316 8 6 Figure 8 5 SCHEMATIC DIAGRAM Emergency Bypass To ST10 To TRX2 To QC1 To QC1 To QC1 To MC6 CONTROLLER...

Page 145: ...onic Partlow Recorder NOTE STANDARD CONTROLLER JUMPERS MA3 TO MA7 AND MA9 TO MA11 SEE Figure 8 2 ARE REMOVED IN THIS APPLICATION CR8 CR2 CR3 CR4 CR6 CR5 NOTE STANDARD CONTROLLER JUMPERS MA3 TO MA7 AND...

Page 146: ...316 8 8 Figure 8 7 UNIT WIRING DIAGRAM Sheet 1 of 2 TRC1 TRC2 KB7 DF11 ICF MAY BE IN CONTROL BOX WIRES TO TR X2 DF TFC P TFC BMA2 CIB1 GRD CHA2 RMA KA12 EFA2 HRA2 CR8 CFS 2 UPPER VPS LOWER VPS ECG1 EB...

Page 147: ...DESTINATIONS CHANGE FROM THE STANDARD ADDRESSES FOR THE CHANGED DESTINATIONS ARE SHOWN IN BRACKETS XXX FOR UNITS WITHOUT ELECTRONIC CR ONLY FOR CR WIRING SEE Figure 8 6 CFS KA6 CFA1 KB7 KB7 NOTE RM M...

Page 148: ...Figure 8 9 UNIT WIRING DIAGRAM single fan capability Sheet 1 of 2 LOWER VPS TRC1 TRC2 KB7 DF11 UPPER VPS ICF MAY BE IN CONTROL BOX ECG1 EB8 WIRES TO TR X2 DF TFC P TFC BMA2 CIB1 GRD CHA2 RMA KA12 EFA...

Page 149: ...11 T 316 Figure 8 10 UNIT WIRING DIAGRAM single fan capability Sheet 2 of 2 CFS KA6 CFA1 KB7 NOTE RM MAY BE OUTSIDE BOX KA1 KB7 SMVD BM2B SMVB BM2A SMVA BM1A SMVC BM1B UVPS1 UVPS2 HPRB TFC1 RMC RMD RM...

Page 150: ......

Page 151: ...denser Coil 2 2 Condenser Coils 7 17 Condenser Fan and Motor Assembly 7 18 Condenser Fan Motor 3 8 Condenser Grille 2 3 Condenser Pressure Control 4 6 Condenser Pressure Transducer 3 7 Configuration I...

Page 152: ...ailure 4 26 Interrogator 2 1 K Key Pad 4 2 L Labels 2 3 Logging Interval dCF03 4 14 Lower Air Fresh Air Make Up 2 3 Lower Fresh Air Makeup Vent 5 3 Lower VPS 7 35 M Manual Defrost Interval key operati...

Page 153: ...le Mode 4 5 Temperature Readout 2 1 Temperature Recorder 2 2 Temperature Sensor Service 7 32 Thermistor Format dCF04 4 14 Thermometer Port 2 2 Thermostatic Expansion Valve 7 21 Thermostatic Expansion...

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Page 156: ...UTC Building Industrial Systems a business unit of United Technologies Corporation Stock symbol UTX Carrier Transicold Division Carrier Corporation P O Box 4805 Syracuse NY 13221 USA www carrier trans...

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