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Carrier Transicold 69NT40-561-001 Operation And Service Manual Download Page 179

Index–3

T-340

T

Temperature Readout

 

2-1

Temperature Recorder

 

2-2

Thermistor Format (dCF04)

 

4-18

Thermometer Port

 

2-2

To Display Alarm Codes

 

4-15

U

Upper Air (Fresh Air Make Up)

 

2-3

Upper Fresh Air Makeup Vent

 

5-2

Upper VPS

 

7-35

USDA

 

2-2

USDA Cold Treatment

 

4-22

USDA Cold Treatment Procedure

 

4-22

V

Vent Position Sensor

 

5-4

W

Water Cooling

 

2-3

Water-Cooled Condenser Cleaning

 

7-11

Water-Cooled Condenser Section

 

3-5

Water-Cooled Condenser w/Condenser Fan Switch

 

5-7

Water-Cooled Condenser w/Water Pressure Switch

 

5-6

When an Alarm Occurs

 

4-15

Summary of Contents for Transicold 69NT40-561-001

Page 1: ...Container Refrigeration OPERATIONS AND SERVICE MANUAL For 69NT40 561 001 to 199 Container Refrigeration Units T 340 Rev F...

Page 2: ......

Page 3: ...OPERATIONS AND SERVICE MANUAL For 69NT40 561 001 to 199 2020 Carrier Corporation Printed in USA August 2020...

Page 4: ......

Page 5: ...Operation 2 1 2 3 8 Plate Set 2 1 2 4 OPTION DESCRIPTIONS 2 2 2 4 1 Battery 2 2 2 4 2 Dehumidification 2 2 2 4 3 USDA 2 2 2 4 4 Interrogator 2 2 2 4 5 Remote Monitoring 2 2 2 4 6 Quest CCPC 2 2 2 4 7...

Page 6: ...tion Software CnF Variables 4 4 4 2 2 Operational Software Cd Function Codes 4 4 4 3 MODES OF OPERATION 4 4 4 3 1 Start up Compressor Phase Sequence 4 5 4 3 2 Start up Compressor Bump Start 4 5 4 3 3...

Page 7: ...ataCORDER Communications 4 21 4 8 11 USDA Cold Treatment 4 22 4 8 12 USDA Cold Treatment Procedure 4 22 4 8 13 DataCORDER Alarms 4 23 4 8 14 ISO Trip Header 4 24 4 9 CONTROLLER CONFIGURATION VARIABLES...

Page 8: ...6 5 UNIT WILL NOT TERMINATE HEATING 6 2 6 6 UNIT WILL NOT DEFROST PROPERLY 6 2 6 7 ABNORMAL PRESSURES 6 3 6 8 ABNORMAL NOISE OR VIBRATIONS 6 3 6 9 MICROPROCESSOR MALFUNCTION 6 4 6 10 NO EVAPORATOR AI...

Page 9: ...CLEANING 7 17 7 17 ELECTRONIC EXPANSION VALVE EEV 7 18 7 17 1 Removing an EEV 7 18 7 17 2 Installing an EEV 7 19 7 18 ECONOMIZER SOLENOID VALVE ESV 7 19 7 18 1 Removing a Solenoid Valve Coil 7 19 7 18...

Page 10: ...g the eAutoFresh Air Filter 7 38 7 27 2 Checking eAutoFresh Drive System 7 38 7 27 3 Checking the Controller 7 39 7 27 4 Servicing the eAutoFresh Drive System 7 40 7 28 ELECTRONIC PARTLOW TEMPERATURE...

Page 11: ...st 4 13 Figure 4 11 Standard Configuration Download Report 4 19 Figure 4 12 DataReader 4 21 Figure 4 13 Alarm Troubleshooting Sequence 4 36 Figure 5 1 Autotransformer 5 2 Figure 5 2 Upper Fresh Air Ma...

Page 12: ...8 3 Figure 8 3 Legend for Configuration With Available Options 8 4 Figure 8 4 Schematic Diagram for Configuration With Available Options 8 5 Figure 8 5 Legend for Configuration With eAutoFresh and Eme...

Page 13: ...4 37 Table 4 7 Controller Pre trip Test Codes 4 46 Table 4 8 DataCORDER Function Code Assignments 4 53 Table 4 9 DataCORDER Pre trip Result Records 4 54 Table 4 10 DataCORDER Alarm Indications 4 55 T...

Page 14: ......

Page 15: ...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 nec...

Page 16: ...er plug disconnected before replacing the compressor WARNING Before disassembly of the compressor be sure to relieve the internal pressure very carefully by slightly loosening the couplings to break t...

Page 17: ...different and will result in damage to the controller CAUTION Pre trip inspection should not be performed with critical temperature cargoes in the container CAUTION When Pre Trip key is pressed econom...

Page 18: ...low suction pressure very quickly Do not use the compressor to evacuate the system below 0 psig Never operate the compressor with the suction or dis charge service valves closed front seated Internal...

Page 19: ...information is provided on a plate located to the left of the receiver or water cooled condenser on the back wall of the condenser section The plate provides the unit model number the unit serial num...

Page 20: ...state perish able cooling that cycles the compressor on and off according to supply return air temperature conditions 2 4 7 Communications Interface Module The unit may be fitted with a communication...

Page 21: ...itioning sensor VPS and may also be fitted with screens 2 4 19 Lower Air Fresh Air Make Up The unit may be fitted with a lower fresh air makeup assembly The fresh air makeup assembly is available with...

Page 22: ......

Page 23: ...r Fan 1 2 Fork Lift Pockets 3 Control Box 4 Compressor 5 Ambient Sensor AMBS 6 Economizer 7 Filter Drier 8 Receiver or Water Cooled Condenser 9 Unit Nameplate Serial Number Model Number and Parts Iden...

Page 24: ...RTS humidity sensor HS elec tronic expansion valve EEV dual speed evaporator fans EM1 and EM2 evaporator coil and heaters defrost tem perature sensor DTS heat termination thermostat HTT and evaporato...

Page 25: ...ompressor section see Figure 3 3 includes the compressor digital unloader valve DUV high pressure switch discharge pressure transducer DPT evaporator pressure transducer EPT and the suction pressure t...

Page 26: ...er fan pulls air from around the coil and discharges it horizontally through the condenser fan grille Figure 3 4 Air Cooled Condenser Section 1 Grille and Venturi Assembly 2 Condenser Fan 3 Key 4 Cond...

Page 27: ...alve ESV and moisture liquid indicator The water cooled condenser replaces the standard unit receiver Figure 3 5 Water Cooled Condenser Section 1 Water Cooled Condenser 2 Rupture Disc 3 Moisture Liqui...

Page 28: ...9 Remote Monitoring Receptacle 10 Start Stop Switch ST 11 Controller Battery Pack standard Location 12 Interrogator Connector box location 13 Control Transformer 14 High Speed Evaporator Fan Contacto...

Page 29: ...property damage Never use air or gas mixtures containing oxygen O2 for leak testing or operating the product Charge Only With R 134a Refrigerant must conform to AHRI Standard 700 specification Refrig...

Page 30: ...0 84 Nominal Horsepower Low Speed 0 06 0 11 Rotations Per Minute High Speed 2850 rpm 3450 rpm Rotations Per Minute Low Speed 1425 rpm 1725 rpm Voltage and Frequency 360 460 VAC 1 25 Hz 400 500 VAC 1 5...

Page 31: ...to 30 C 22 to 86 F Table 3 1 Safety and Protective Devices Unsafe Condition Device Device Setting Excessive current draw Circuit Breaker CB 1 25 amp Manual Reset Trips at 29 amps 460 VAC Circuit Brea...

Page 32: ...switch cut out setting the condenser fan will automatically start During the standard mode of operation the normally closed digital unloader valve DUV controls the system refrig erant flow and capaci...

Page 33: ...isture Indicator 9 Liquid Line Service Valve 10 Filter Drier 11 Economizer 12 Economizer TXV 13 Economizer Solenoid Valve ESV 14 Economizer TXV Sensing Bulb 15 Electronic Expansion Valve EEV 16 Evapor...

Page 34: ...er WCC 7 Sight Glass 8 Moisture Indicator 9 Liquid Line Service Valve 10 Filter Drier 11 Economizer 12 Economizer TXV 13 Economizer Solenoid Valve ESV 14 Electronic Expansion Valve EEV 15 Evaporator 1...

Page 35: ...ematic Economized Operation 1 Compressor 2 Receiver 3 Liquid Line Service Valve 4 Economizer 5 Economizer TXV 6 Economizer Solenoid Valve ESV 7 Economizer TXV Sensing Bulb 8 Electronic Expansion Valve...

Page 36: ......

Page 37: ...e desired cargo temperature and humidity The DataCORDER software functions to record unit operating parameters and cargo temperature parameters for future retrieval Coverage of the temperature control...

Page 38: ...rogress ALARM LIST Displays alarm list and clears the alarm queue MANUAL DEFROST INTERVAL Displays selected defrost mode Depress and hold the MANUAL DE FROST INTERVAL key for five 5 seconds to initiat...

Page 39: ...wire harness connectors before performing arc welding on any part of the container CAUTION Do not attempt to use anML2i PC card in an ML3 equipped unit The PC cards are physically different and will r...

Page 40: ...k 3 Control DataCORDER Module 3 Connectors 4 Test Points 5 Fuses 6 Control Circuit Power Connection 7 Software Programming Port 8 Battery Pack Standard Location 4 2 2 Operational Software Cd Function...

Page 41: ...r temperature enters the in range temperature tolerance Cd30 the green IN RANGE light will energize When CnF26 Heat Lockout Temperature is set to 10 C perishable mode is active with set points above 1...

Page 42: ...nsed is 2 below the dehumidification set point the high speed evaporator fans will be energized During dehumidification power is applied to the defrost heaters This added heat load causes the controll...

Page 43: ...setting Bulb mode is terminated when Bulb mode code Cd35 is set to Nor Dehumidification code Cd33 is set to Off The user changes the set point to one that is in the frozen range When bulb mode is dis...

Page 44: ...irculate air throughout the container The green IN RANGE light remains illuminated as long as the supply air temperature is within tolerance of the set point h If the supply air temperature increases...

Page 45: ...rozen mode is active with set points below 10 C 14 F When CnF26 is set to 5 C frozen mode is active with set points below 5 C 23 F When the system is in Frozen Mode the highest priority is given to br...

Page 46: ...period of 60 minutes the unit will turn on high speed evaporator fans for three minutes and then check the control temperature If the control temperature is greater than or equal to the frozen set poi...

Page 47: ...t air flow and reduce the cooling capacity of the unit The defrost cycle may consist of up to three distinct operations The first is de icing of the coil the second is defrost due to a probe check cyc...

Page 48: ...led Atmosphere Vent is closed if applicable then defrost can be initiated when any one of the following additional conditions become true 1 Manual defrost is initiated by the operator The Manual Defro...

Page 49: ...peration is terminated Figure 4 10 Defrost NOTE The EEV and DUV are independently operated by the microprocessor Complete schematics and legends are located in Section 8 4 3 23 Defrost Interval There...

Page 50: ...shut down the unit 4 4 2 Failure Action Function code Cd29 may be operator set to select the action the controller will take upon a system failure The fac tory default is full system shutdown See Tabl...

Page 51: ...s may be programmed to run at low speed some or all of the time according to the control logic 4 6 Controller Alarms Alarm display is an independent controller software function If an operating parame...

Page 52: ...tests auto mode At the end of a Pre trip test the message P rSLts pretest results will be displayed Pressing ENTER will allow the user to see the results for each of the sub tests The results will be...

Page 53: ...on Software and the Data Memory a Operational Software The Operational Software reads and interprets inputs for use by the Configuration Software The inputs are labeled Function Codes Controller funct...

Page 54: ...Data Retrieval Program 1 Control mode 2 Control temperature 3 Frequency 4 Humidity 5 Phase A current 6 Phase B current 7 Phase C current 8 Main voltage 9 Evaporator expansion valve percentage 10 Discr...

Page 55: ...nfiguration USDA Sensor 3 A Auto On Off dCF10 Alarm Configuration Cargo Sensor A Auto On Off Raw Data Report for ABC1234567 May 31 2007 to Jun 04 2007 System Configuration at the Time of Interrogation...

Page 56: ...acle 3 External DC battery pack power A 12 volt battery pack may also be plugged into the back of the interroga tion cable which is then plugged into an interrogation port No controller battery pack i...

Page 57: ...OTE A DataReader DataLINE or a communications interface module display of Communication Failed is caused by faulty data transfer between the DataCORDER and the data retrieval device Common causes incl...

Page 58: ...ility into its microprocessor system These units have the ability to maintain supply air tem perature within one quarter degree Celsius of set point and record minute changes in product temperature wi...

Page 59: ...ist backward 3 The left display will show AL where is the alarms number in the queue The right display will show AA if the alarm is active where is the alarm number IA will show if the alarm is inacti...

Page 60: ...Header is 128 characters If the user tries to refresh the screen or close the utility without sending the changes made on the screen to the DataCORDER the user is alerted with a message 4 9 Controlle...

Page 61: ...Functions Cd01 through Cd26 are display only functions Cd01 Digital Unloader Valve Closed Displays the DUV percent closed The right display reads 100 when the valve is fully closed The valve will usu...

Page 62: ...evision The software revision number is displayed Cd19 Battery Check This code checks the Controller DataCORDER battery pack While the test is running btest will flash on the right display followed by...

Page 63: ...t to PuLS Cd28 Temperature Units Degrees C or Degrees F This code determines the temperature units C or F that will be used for all tem perature displays The user selects C or F by selecting function...

Page 64: ...mode offered Economy mode is a user selectable mode of operation provided for power saving purposes Cd35 Bulb Mode The current state of the bulb mode option nOr or bULb Replaced by Cd48 if CnF50 Enha...

Page 65: ...entering a container id or leav ing the code select normally Cd40 is configured at commissioning to read a valid container identification num ber The reading will not display alpha characters only the...

Page 66: ...45 Vent Position Sensor VPS Position Values 0 to 240 for UPPER 0 to 225 for LOWER This function code will be dashed out if not configured for VPS When configured for VPS Cd45 displays the current vent...

Page 67: ...idification mode leaves OFF Evaporator speed select goes to Alt for units without PWM Compressor Control Cnf57 Out Evaporator speed select goes to Hi for units with PWM Compressor Control Cnf57 In DTT...

Page 68: ...nterface down into a hierarchy of param eter selection menus act treat days probe and spnew setting Pressing the ENTER key in any of the parameter selection menus commits to selection of the currently...

Page 69: ...and the current selection menu is cancelled but any pre viously committed changes are retained Available parameters and parameter ranges are a function of configuration op tions and previously selecte...

Page 70: ...til pump down either suc ceeds or fails This operation can not be halted once it begins without power cycling the unit After pump down logic has been initiated the operator will be notified to close t...

Page 71: ...lay for five seconds Press the ENTER key SPLK will display along with the current setting of ON or OFF Use the Arrow keys to change the selection the new selection will then flash for five seconds Pre...

Page 72: ...ation See alarm details repair Correct all faults Yes Yes Yes Yes No Yes No Yes No No No No Correct Refrigerant issue Unit OK Yes No Check Power Supply Unit does self test Section 5 2 Section 4 2 Sect...

Page 73: ...pears after 5 minutes replace the keypad AL06 Keypad or KeypadHarness Fail Controllerhasdetected one of the keypad keys is continuously activity Keypad or Har ness Power cycle the unit Resetting the u...

Page 74: ...sured current at wire T1 T2 or T3 going to the compressor contactor If there is a difference de termine whether this is caused by current sen sor or amp clamp tool Replace current sensor if defective...

Page 75: ...nutes within the last hour Restrictions in the refrigeration sys tem Ensure Liquid Line Ser vice Valve is fully open Open Liquid Line Ser vice Valve as needed Filter Drier Check the filter drier if it...

Page 76: ...s found coil is defective Replace the defective coil Replace the fuse Check Voltage at QC1 If voltage is present it in dicates a defective mi croprocessor Refer to Controller Ser vice Section 7 23 AL2...

Page 77: ...Pressure Transducer SPT Confirm accurate SPT pressure readings refer to MANIFOLD GAUGE SET Section 7 2 Replace SPT if defec tive Discharge Pres sure Transducer DPT Confirm accurate DPT pressure readi...

Page 78: ...as de termined by P5 refer to TEMPERATURE SEN SOR Service Section 7 24 AL57 Ambient Sensor AMBS Invalid Ambient Tem perature Sensor AMBS reading Ambient Tem perature Sensor AMBS Test the AMBS refer t...

Page 79: ...PDS if de fective refer to Sensor Replacement Section 7 24 2 AL65 Discharge Pres sure Transducer DPT CompressorDischarge Transducer is out of range Compressor Dis charge Transduc er DPT Confirm accura...

Page 80: ...If P5 fails replace the defective sensor as de termined by P5 refer to TEMPERATURE SEN SOR Service Section 7 24 AL72 Control Temp Out of Range After the unit goes in range for 30 minutes then out of r...

Page 81: ...failed ERR 6 IO Board failure Internal program update failure ERR 7 Controller failure Internal version firmware incompatible ERR 8 Data CORDER failure Internal DataCORDER memory failure ERR 9 Control...

Page 82: ...on After 15 seconds the current draw is measured again The change in current draw is then recorded Test passes if the change in current draw test is in the range specified P1 1 Heaters Turned Off Hea...

Page 83: ...After 60 seconds the current draw is measured again The change in current draw is then recorded Test passes if change in current draw in the specified range AND mea sured current changes exceed speci...

Page 84: ...of the Primary Evaporator Pressure Transducer Test passes if suction pressure transducer SPT is within 0 psi of sat uration pressure at current evaporator temperature Also passes if SPT is within 1 ps...

Page 85: ...nds P6 5 passes otherwise the Compressor Leak Test fails NOTE P6 6 through P6 10 are conducted by changing status of each valve and comparing suction pressure change and or compressor current change w...

Page 86: ...eeds limits The test passes if HPS opens within the 15 minute time limit P7 1 High Pressure Switch HPS Closing Test If return temperature greater than 2 4 C set setpoint to 5 0 C else set setpoint to...

Page 87: ...ead P8 2 and the right display will show the supply air temperature When the test is completed the average control temperature error will be compared to the pass fail criteria Test passes if the avera...

Page 88: ...F The setpoint is changed to 17 8 C The system will then attempt to pull down the control temperature to setpoint using normal frozen mode cool ing During this test the control temperature will be sh...

Page 89: ...4 The DataCORDER serial number consists of eight characters Function code dC26 contains the first four characters Function code dC27 contains the last four characters This serial number is the same as...

Page 90: ...ss Fail Skip 6 3 Suction Pressure Transducer Test Pass Fail Skip 6 4 Compressor Current Draw Test Pass Fail Skip 6 5 Compressor Leak Test Pass Fail Skip 6 6 Economizer Valve Test Pass Fail Skip 6 7 Di...

Page 91: ...twork data points An alarm number AL78 to AL85 is assigned to each configured point When an alarm occurs the Data CORDER must be interrogated to identify the data point assigned When a humidity sensor...

Page 92: ......

Page 93: ...or Check for loose electrical connections or hardware 4 Check color of moisture liquid indicator 5 2 Connect Power WARNING Do not attempt to remove power plug s before turning OFF start stop switch ST...

Page 94: ...ing frozen foods Air exchange depends on static pressure differential which will vary depending on the container and how the con tainer is loaded Units may be equipped with a vent position sensor VPS...

Page 95: ...up vent NOTE Do not loosen the hex nut beyond its stop Doing so may cause inaccurate display readings and errors in DataCORDER reports Similar to the Upper Fresh Air Makeup vent two slots and a stop a...

Page 96: ...an 5 CMH 3 CFM remaining in the new position for at least four minutes NOTE The user has four minutes to make necessary adjustments to the vent setting This time calculation begins on the initial move...

Page 97: ...saved The vent position will be restored when a perishable set point is selected b USER The USER mode provides ventilation for commodities that require fresh air circulation The flow rate can be acce...

Page 98: ...minutes the air exchange vent will open in 10 CMH increments every 15 minutes until both gas concentrations are satisfied Once all limits are satisfied the vent will return to the closed position If...

Page 99: ...t the water lines to the water cooled condenser 5 6 Connect Remote Monitoring Receptacle If remote monitoring is required connect the remote monitor plug at the unit receptacle see item 9 Figure 3 6 W...

Page 100: ...tart To enter a Trip Start do the following a Press the ALT MODE key When the left display shows dC Press the ENTER key b Scroll to Code dC30 c Press and hold the ENTER key for five seconds d The Trip...

Page 101: ...selection menu 2 To Run an Automatic Test Scroll through the selections by pressing the Up or Down Arrow keys to display AUTO AUTO 1 AUTO 2 or AUTO 3 as desired then press the ENTER key The unit will...

Page 102: ...ference in temperature readings is detected between probes a defrost cycle followed by another probe check may be initiated Any continued disagreement between probes will prompt the controller to inva...

Page 103: ...ctors and heat termi nation thermostat to protect the system while in Emergency Bypass Mode CAUTION The unit will remain in the full cooling mode as long as the EB switch is in the On position and the...

Page 104: ...NOTE ACT setup with Cd51 and Automatic Setpoint Change ASC setup with Cd53 will not work simultane ously Setting one will deactivate the other Procedure to Set ACT 1 Enter the required cargo setpoint...

Page 105: ...atment 10 The unit will start to countdown once all detected USDA probes have reached the specified cold treatment temperature The cold treatment process will continue until the specified number of da...

Page 106: ...s 1 to 99 in the right display and press ENTER 7 Select the next setpoint SP 1 With SP 1 in the left display select by scrolling to the desired flashing set point in the right display and press ENTER...

Page 107: ...tion of current sensor Replace Compressor hums but does not start Low line voltage Check Single phasing Check Shorted or grounded motor windings Section 7 8 Compressor seized Section 7 8 6 2 Unit Oper...

Page 108: ...relay defective Check Heater termination thermostat open Section 7 14 Unit will not heat or has insufficient heat Heater s defective Section 7 14 Heater contactor or coil defective Replace Evaporator...

Page 109: ...valve partially closed Open Filter drier partially plugged Section 7 13 Low refrigerant charge Section 7 3 No evaporator air flow or restricted air flow Section 7 3 Excessive frost on evaporator coil...

Page 110: ...lable Check CO2 sensor Section 5 4 3 Wiring disconnected Check wiring Unit operating in frozen mode Section 5 4 3 Unable to calibrate CO2 sensor ENTER Key not held for sufficient length of time Sectio...

Page 111: ...t turned ON Check 460 VAC power plug is not inserted into the receptacle Section 5 2 1 6 14 Water Cooled Condenser Or Water Pressure Switch High discharge pressure Dirty coil Section 7 12 Non condensi...

Page 112: ...l malfunction Replace Failed suction pressure transducer SPT or evapora tor pressure transducer EPT Replace Discharge temperature sensor drifting high Replace Failed economizer expansion valve EXV eco...

Page 113: ...Container Refrigeration website To find the manual from the Literature section click on Container Units All Container Units Operation 7 1 Section Layout Service procedures are provided herein beginni...

Page 114: ...ves 2 Connect the yellow hose to a vacuum pump and refrigerant 134a cylinder Figure 7 2 R 134a Manifold Gauge Hose Set 1 RED Refrigeration and or Evacuation Hose SAE J2196 R 134a 2 Hose Fitting 0 5 16...

Page 115: ...et 1 Remove service valve stem cap and to make sure the valve is backseated 2 Remove access valve cap see Figure 7 3 3 Connect the field service coupling see Figure 7 2 to the access valve 4 Turn the...

Page 116: ...ght positive pressure 7 When opening up the refrigerant system certain parts may frost Allow the part to warm to ambient tempera ture before dismantling This avoids internal condensation which puts mo...

Page 117: ...of moisture If the ambient temperature is lower than 15 6 C 60 F ice might form before moisture removal is complete Heat lamps or alternate sources of heat may be used to raise the system temperature...

Page 118: ...oved from the low side only evacuate the low side by connecting the evacuation set up at the compressor suction valve and the liquid service valve but leave the service valves frontseated until evacua...

Page 119: ...e valve and remove the service port cap 4 Connect charging line between suction service valve port and cylinder of refrigerant R 134a Open VAPOR valve 5 Partially frontseat turn clockwise the suction...

Page 120: ...e unloader and economizer lines from the compressor 8 Cut the dome temperature sensor CPDS wires The replacement compressor comes with a CPDS already assembled 9 Remove and save the compressor base mo...

Page 121: ...threaded side out Ensure that the gasket is seated onto the fusite base c Coat the inside of the power plug female connector pins with the Krytox lubricant and insert the plug onto the compressor term...

Page 122: ...located on the discharge connection or line and is removed by turning counterclockwise 3 Install a new high pressure switch after verifying switch settings 4 Evacuate dehydrate and recharge the system...

Page 123: ...er surface of the coil Rust scale and slime on the water cooling surfaces inside of the coil interfere with the transfer of heat reduce sys tem capacity cause higher head pressures and increase the lo...

Page 124: ...rain and flush the water circuit of the condenser coil If scale on the tube inner surfaces is accompanied by slime a thorough cleaning is necessary before de scaling process can be accomplished 2 To r...

Page 125: ...d attached to the coils by a hose can serve the same purpose by filling and draining The solution must contact the scale at every point for thorough de scaling Air pockets in the solution should be av...

Page 126: ...Check the head pressure If normal a thorough de scaling has been achieved What You Can Do For Further Help Contact the Engineering and Service Department of the OAKITE PRODUCTS CO 675 Central Avenue N...

Page 127: ...Install coil assembly by reversing above steps 10 Leak check connections Evacuate and add refrigerant charge 7 14 2 Evaporator Heater Replacement The heaters are wired directly back to the contactor...

Page 128: ...CB 2 and disconnect main power supply before working on moving parts 1 Remove access panel see Figure 3 2 by removing mounting bolts and TIR locking device Reach inside of unit and remove the Ty Rap s...

Page 129: ...fan onto the motor shaft Place one 5 8 flat washer with a 5 8 18 locknut onto the motor shaft and torque to 40 foot pounds Figure 7 10 Evaporator Fan Assembly 1 Stator 2 Flat washer 5 8 3 Locknut 5 8...

Page 130: ...aning indoor evaporator coils rear doors must be open Be aware of surroundings food plants etc and the potential for human exposure Always read directions and follow recommended dilution ratios More i...

Page 131: ...id line and suction service valve 5 Open liquid line service valve and check refrigerant level 6 Check superheat see Section 3 2 7 Check unit operation by running a Pre trip see Section 4 8 7 18 Econo...

Page 132: ...torque wrench Torque the screw to 25 in lbs 6 Connect coil wires using butt splices and heat shrink tubing 7 19 Economizer Expansion Valve EXV The economizer expansion valve EXV is an automatic devic...

Page 133: ...ontseat both suction and discharge valves In the event the DUV is stuck open and compressor cannot pump down remove charge 2 Turn unit power off and remove power from the unit 3 Loosen bolt on top of...

Page 134: ...e digital unloader valve and electronic expansion valve respectively to various percentages If the unit is equipped with an LIV the Liquid Valve Setting allows the LIV to be automatically controlled o...

Page 135: ...e secondary output voltage 230 VAC The transformer is defective if output voltage is not available Figure 7 15 Autotransformer 1 Dual Voltage Modular Autotransformer 2 Circuit Breaker CB 2 230 Volt 3...

Page 136: ...fully remove the module Do not touch any of the electrical connections if possible Place the module on the static mat 5 The strap should be worn during any service work on a module even when it is pla...

Page 137: ...ading Operational Software 1 The display module will display the message ruN COnFG If a defective card is being used the display will blink the message bAd CArd Turn start stop switch OFF and remove t...

Page 138: ...the ENTER key on the keypad 9 When software loading has successfully completed the display will show the message EEPrM donE If a problem occurs while loading the software the display will blink the me...

Page 139: ...d the display will blink the message bAd CArd Turn start stop switch OFF and remove the card 10 Press the ENTER key on the keypad 11 When software loading has successfully completed the display will s...

Page 140: ...e it in the packaging in the same manner as the replacement The packaging has been designed to protect the module from both physical and electrostatic discharge damage during storage and transit Insta...

Page 141: ...sensors are provided here 7 24 1 Sensor Checkout Procedure This procedure is performed to verify the accuracy of a temperature sensor 1 Remove the sensor and place in a 0 C 32 F ice water bath The ice...

Page 142: ...23 9 4 115 702 23 73 4 10 923 22 7 6 109 063 24 75 2 10 450 21 5 8 102 846 25 77 10 000 20 4 97 022 26 78 8 9 572 19 2 2 91 563 27 80 6 9 164 18 0 4 86 445 28 82 4 8 777 17 1 4 81 644 29 84 2 8 407 16...

Page 143: ...22 71 6 98 194 34 29 2 1 957 446 24 75 2 89 916 32 25 6 1 724 386 25 77 86 113 30 22 0 1 522 200 26 78 8 82 310 28 18 4 1 345 074 28 82 4 75 473 26 14 8 1 190 945 30 83 0 69 281 24 11 2 1 056 140 32 8...

Page 144: ...mbly onto the replacement sensor 8 Slip crimp fittings over dressed wires keeping wire colors together Make sure wires are pushed into crimp fittings as far as possible and crimp with crimping tool 9...

Page 145: ...ontact the probe holder For proper placement of the sensor be sure to position the enlarged positioning section of the sensor against the side of the mounting clamp This position ing will give the sen...

Page 146: ...be holder under insulation see Figure 7 21 When the combo sensor is removed and reinstalled it must be placed in a tube holder by applying thermal grease Insulating material must completely cover the...

Page 147: ...then power cycle the unit If the alarm immedi ately reappears as active the panel should be replaced The alarm should immediately go inactive check the 4 minute stability requirement If the alarm reoc...

Page 148: ...sensor When performing this procedure and while working on the unit always follow the proper lockout tagout procedures Items Required One 7 16 socket wrench or nut driver One 1 4 socket wrench or nut...

Page 149: ...umidity 15 If the humidity sensor display is outside of this range reconfirm the salt mixture and retest If not in range replace the sensor at the next opportunity 16 Wipe clean and reinstall the humi...

Page 150: ...k out the controller 2 To check with a SMA 12 portable stepper drive tester The SMA 12 portable stepper drive tester Carrier Transicold P N 07 00375 00 is a battery operated stepper drive which will o...

Page 151: ...Turn ON the unit for 40 seconds and watch the voltmeter There should be approximately 24 to 32 VDC shown on pin A 5 There should be zero volts on pin B 6 After a short delay the reading should rise t...

Page 152: ...outside and inside of motor cup assembly Push out the motor cup assembly from the rear of the panel 5 Mount the replacement motor cup assembly in the panel using original screws Torque screws to 0 29...

Page 153: ...e with time The electronic recorder will automatically record the return air supply air or both based on the set ting of temperature controller configuration code CnF37 see Table 4 4 The recorder read...

Page 154: ...ble recording during the power off period of less than thirty days the pen tip will move to below the inner chart ring for the period when NO data was recorded by the DataCORDER 7 28 1 Replacing the R...

Page 155: ...the bottom of the recorder The pen tip will drive fully down scale then move upscale to the chart ring at 0C 32F and stop 5 If the tip of the pen item 4 is on the 0 C 32 F chart ring the recorder is...

Page 156: ...CIA3 CB22 CIA5 and CB23 CIA7 that have been tied back in the wire harness Remove the protective heat shrink from the ends of the wires 4 Refit the circuit breaker panel 5 Fit the new CIM into the unit...

Page 157: ...2 04 44 6 7 39 0 2 35 6 2 15 46 7 8 41 1 3 37 4 2 26 48 8 9 43 2 4 39 2 2 38 50 10 0 45 4 5 41 0 2 50 52 11 1 47 7 6 42 8 2 62 54 12 2 50 0 7 44 6 2 75 56 13 3 52 4 8 46 4 2 88 58 14 4 54 9 9 48 2 3 0...

Page 158: ...05 8 9 44 124 51 1 181 8 42 107 6 9 72 126 52 2 187 4 43 109 4 10 01 128 53 3 193 0 44 111 2 10 30 130 54 4 198 7 45 113 0 10 60 132 55 6 204 6 46 114 8 10 90 134 56 7 210 6 47 116 6 11 21 136 57 8 21...

Page 159: ...7 47 T 340...

Page 160: ...2 3 10 24 23 1 9 2 6 1 4 20 75 6 3 8 5 5 16 18 132 11 14 9 3 8 16 240 20 27 1 7 16 14 372 31 42 1 2 13 516 43 58 3 9 16 12 684 57 77 3 5 8 11 1104 92 124 7 3 4 10 1488 124 168 1 Non Free Spinning Loc...

Page 161: ...6 provides the basic schematic diagram for units with units with eAutoFresh and or Emergency Bypass Figure 8 7 supplements Figure 8 4 and Figure 8 6 and provides schematic and wiring diagrams for Upp...

Page 162: ...SOLENOID VALVE K 9 F FUSE C 6 D 6 D 18 E 18 FLA FULL LOAD AMPS HPS HIGH PRESSURE SWITCH G 7 LEGEND SYMBOL DESCRIPTION HR HEATER CONTACTOR P 4 M 13 HS HUMIDITY SENSOR F 21 HTT HEAT TERMINATION THERMOS...

Page 163: ...8 3 T 340 Figure 8 2 Schematic Diagram for Standard Unit Configuration Based on Drawing 62 11271 Rev A...

Page 164: ...ON D 20 ESV ECONOMIZER SOLENOID VALVE K 9 F FUSE C 6 D 6 D 18 E 18 FCR FUSE TRANSFRESH H 5 FLA FULL LOAD AMPS FT FUSE TRANSFRESH H 5 LEGEND SYMBOL DESCRIPTION HPS HIGH PRESSURE SWITCH G 7 HR HEATER CO...

Page 165: ...igure 8 4 Schematic Diagram for Configuration With Available Options Except Vent Positioning System eAutoFresh Emergency Bypass Options see Figure 7 7 for VPS OR OR Based on Drawings 62 66721 and 62 1...

Page 166: ...VALVE J 11 F FUSE D 20 E 20 F 20 FCR FUSE CHART RECORDER FLA FULL LOAD AMPS FT FUSE TRANSFRESH LEGEND SYMBOL DESCRIPTION HPS HIGH PRESSURE SWITCH F 10 HR HEATER CONTACTOR P 4 M 16 HS HUMIDITY SENSOR...

Page 167: ...8 6 Schematic Diagram for Configuration With eAutoFresh and Emergency Bypass Options see Figure 7 7 for VPS Based on Drawing 62 11418 Rev A see Figure 7 4 for optional heater and 3 ph condenser fan mo...

Page 168: ...40 8 8 Figure 8 7 Schematic and Wiring Diagram for Upper Vent Position Sensor VPS Option SEE NOTE SEE NOTE NOTE DEPENDING ON CONFIGURATION VPS 2 MAY BE CONNECTED TO L1 OR T1 PTC MAY BE INST ALLED PTC...

Page 169: ...8 9 T 340 Figure 8 8 Schematic and Diagram for Lower Vent Position Sensor VPS Option...

Page 170: ...T 340 8 10 Figure 8 9 Unit Wiring Diagram for Standard Unit Configuration With 3 Phase Condenser Fan Motors...

Page 171: ...8 11 T 340 Unit Wiring Diagram for Standard Unit Configuration With 3 Phase Condenser Fan Motors Based on Drawing 62 11271 Rev A...

Page 172: ...T 340 8 12 Figure 8 10 Unit Wiring Diagram for Single Phase Condenser Fan Motor and Optional Heater...

Page 173: ...8 13 T 340 Unit Wiring Diagram for Single Phase Condenser Fan Motor and Optional Heater Based on Drawing 62 66721...

Page 174: ...T 340 8 14 Figure 8 11 Unit Wiring Diagram for Configuration With eAutoFresh and Emergency Bypass Options...

Page 175: ...8 15 T 340 Unit Wiring Diagram for Configuration With eAutoFresh and Emergency Bypass Options Based on Drawing 62 11418 Rev A...

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Page 177: ...r 5 1 Control Box 2 1 Control Box Section 3 6 Controller 2 3 4 3 7 24 Controller Alarm Indications 4 37 Controller Programming Procedure 7 25 Controller Software 4 3 Controller Troubleshooting 7 24 D...

Page 178: ...e Mode Temperature Control 4 5 Perishable Pulldown 4 5 Perishable Steady State 4 5 Physical Inspection 5 8 Plate Set 2 1 Pressure Readout 2 1 Pre trip Data Recording 4 21 Pre trip Diagnosis 5 8 Pre Tr...

Page 179: ...Up 2 3 Upper Fresh Air Makeup Vent 5 2 Upper VPS 7 35 USDA 2 2 USDA Cold Treatment 4 22 USDA Cold Treatment Procedure 4 22 V Vent Position Sensor 5 4 W Water Cooling 2 3 Water Cooled Condenser Cleani...

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Page 182: ...Carrier Transicold Division Carrier Corporation P O Box 4805 Syracuse NY 13221 USA www carrier com container refrigeration...

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