Carrier 69NT40-561-019 Operation And Service Manual Download

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T-359

6–6

6.13 ABNORMAL TEMPERATURES

High discharge temperature

Condenser coil dirty

7.6

Condenser fan rotating backwards

7.7

Condenser fan inoperative

7.7

Refrigerant overcharge or noncondensibles

7.3

Discharge service valve partially closed

Open

Electronic expansion valve (EEV) control malfunction

Replace

Failed suction pressure transducer (SPT),
or evaporator pressure transducer (EPT)

Replace

Discharge temperature sensor drifting high

Replace

Failed economizer expansion valve, economizer coil,
or economizer solenoid valve

Replace

Plugged economizer expansion valve, economizer coil,
or economizer solenoid valve

Replace

Loose or insufficiently clamped sensor

Replace

6.14 ABNORMAL CURRENTS

Unit reads abnormal currents Current sensor wiring

Check

CONDITION

POSSIBLE CAUSE

REMEDY/

REFERENCE

SECTION

Summary of Contents for 69NT40-561-019

Page 1: ...Container Refrigeration OPERATIONS AND SERVICE For 69NT40 561 019 Evergreen Container Refrigeration Units T 359 Rev B ...

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Page 3: ...OPERATIONS AND SERVICE For 69NT40 561 019 Evergreen Container Refrigeration Units 2017 Carrier Corporation Printed in USA June 2017 ...

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Page 5: ... 4 OPTION DESCRIPTIONS 2 1 2 4 1 Battery 2 1 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 Communications Interface Module 2 2 2 4 7 Temperature Recorder 2 2 2 4 8 Handles 2 2 2 4 9 460 Volt Cable 2 2 2 4 10 Cable Restraint 2 2 2 4 11 Upper Air Fresh Air Make Up 2 2 2 4 12 Labels 2 2 2 4 13 Controller 2 2 2 4 14 Condenser Grille 2 2 DESCRIPTION ...

Page 6: ...eration 4 7 4 3 8 Perishable Mode Heating Sequence of Operation 4 7 4 3 9 Sequence of Operation Perishable Mode Capacity Trim Heat 4 7 4 3 10 Perishable Mode Dehumidification 4 8 4 3 11 Perishable Dehumidification Bulb Mode 4 8 4 3 12 Frozen Mode Temperature Control 4 9 4 3 13 Frozen Mode Standard 4 9 4 3 14 Frozen Mode Heat Lockout Temperature 4 9 4 3 15 Frozen Mode Cooling Sequence of Operation ...

Page 7: ...6 1 Physical Inspection 5 3 5 6 2 Check Controller Function Codes 5 3 5 6 3 Start Temperature Recorder 5 3 5 6 4 Complete Inspection 5 4 5 7 PRE TRIP DIAGNOSIS 5 4 5 8 OBSERVE UNIT OPERATION 5 5 5 8 1 Probe Diagnostic Logic 5 5 TROUBLESHOOTING 6 1 6 1 UNIT WILL NOT START OR STARTS THEN STOPS 6 1 6 2 UNIT OPERATES LONG OR CONTINUOUSLY IN COOLING 6 1 6 3 UNIT RUNS BUT HAS INSUFFICIENT COOLING 6 2 6 ...

Page 8: ...TION CLEANING 7 15 7 12 ELECTRONIC EXPANSION VALVE 7 16 7 12 1 Replacing Electronic Expansion Valve and Strainer 7 17 7 13 ECONOMIZER EXPANSION VALVE 7 17 7 13 1 Valve Replacement 7 18 7 14 ECONOMIZER SOLENOID VALVE 7 19 7 15 DIGITAL UNLOADER VALVE 7 20 7 16 VALVE OVERRIDE CONTROLS 7 21 7 17 CONTROLLER 7 22 7 17 1 Handling Modules 7 22 7 17 2 Controller Troubleshooting 7 22 7 17 3 Controller Progr...

Page 9: ...nifold Gauge Hose Set 7 2 Figure 7 3 Service Valve 7 3 Figure 7 4 Refrigeration System Service Connections 7 5 Figure 7 5 Compressor Kit 7 9 Figure 7 6 High Pressure Switch Testing 7 10 Figure 7 7 Heater Arrangement Omega Heater 7 13 Figure 7 8 Evaporator Fan Assembly 7 15 Figure 7 9 Electronic Expansion Valve 7 17 Figure 7 10 Economizer Expansion Valve 7 18 Figure 7 11 Coil View of Economizer Sol...

Page 10: ...des 4 25 Table 4 6 Controller Alarm Indications 4 31 Table 4 7 Controller Pre trip Test Codes 4 40 Table 4 8 DataCORDER Function Code Assignments 4 45 Table 4 9 DataCORDER Pre trip Result Records 4 46 Table 4 10 DataCORDER Alarm Indications 4 47 Table 7 1 Valve Override Control Displays 7 21 Table 7 2 Sensor Resistance 7 28 Table 7 3 Sensor Resistance CPDS 7 29 Table 7 4 Recommended Bolt Torque Va...

Page 11: ...r access panels before turning power off dis connecting 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 s...

Page 12: ...l power source WARNING Make sure the power plugs are clean and dry before connecting to power receptacle 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 Make sure power to the unit is OFF and power plug disconnected before replacing the com pressor WARNING Before disassembly ...

Page 13: ...g arc welding on any part of the container CAUTION Do not attempt to use an ML2i PC card in an ML3 equipped unit The PC cards are physically different and will result in damage to the controller CAUTION Pre trip inspection should not be per formed with critical temperature cargoes in the container CAUTION When Pre Trip key is pressed economy de humidification and bulb mode will be deactivated At t...

Page 14: ...s closed frontseated Internal damage will result from operating the com pressor in a deep vacuum CAUTION Take necessary steps place plywood over coil or use sling on motor to prevent motor from falling into condenser coil CAUTION Do not remove wire harnesses from module unless you are grounded to the unit frame with a static safe wrist strap CAUTION Unplug all module connectors before per forming ...

Page 15: ...dentification number PID The model number identifies the overall unit configuration while the PID number provides informa tion on specific optional equipment factory provisioned to allow for field installation of optional equipment and dif ferences in detailed parts 2 3 FEATURE DESCRIPTIONS 2 3 1 Control Box Units are equipped with an aluminum control box 2 3 2 Temperature Readout The unit is fitt...

Page 16: ...wer line Refer to the ship master system technical manual for further information 2 4 7 Temperature Recorder The unit has been provisioned to be fitted with an electronic temperature recording device 2 4 8 Handles The unit is equipped with handles to facilitate access to stacked containers These fixed handles are located on either side of the unit 2 4 9 460 Volt Cable A power cable and CEE17 plug ...

Page 17: ...odities that require fresh air circulation A manually operated venting system is located in the upper left access panel Figure 3 1 Refrigeration Unit Front Section 1 Access Panel Evap Fan 1 2 Fork Lift Pockets 3 Control Box 4 Compressor Cover 5 Compressor 6 Economizer 7 Filter Drier 8 Receiver 9 Unit Serial Number Model Number and Parts Identification Number PID Plate 10 Power Cables and Plug Loca...

Page 18: ...components are accessible by removing the upper rear panel as shown in the illustration or by removing the evaporator fan access panels see Figure 3 1 Items 1 and 16 Figure 3 2 Evaporator Section 1 Evaporator Fan Motor 1 EM1 2 Return Recorder Sensor Temperature Sensor RRS RTS 3 Humidity Sensor HS 4 Evaporator Fan Motor 2 EM2 5 Evaporator Coil 6 Evaporator Coil Heaters Underside of Coil 7 Heater Te...

Page 19: ...e 3 3 Compressor Section 1 Compressor 2 Compressor Discharge Temperature Sen sor CPDS Location 3 Discharge Connection 4 Suction Connection Location 5 Compressor Terminal Box 6 Oil Drain Location 7 Economizer Connection 8 Discharge Pressure Transducer DPT 9 Suction Pressure Transducer SPT 10 Digital Unloader Valve DUV 11 Evaporator Pressure Transducer EPT 12 Discharge Service Valve 13 High Pressure...

Page 20: ... condenser fan pulls air through the bottom of the coil and discharges it horizontally through the con denser 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 Coil 6 Condenser Coil Cover 7 Receiver 8 Sight Glass 9 Filter Drier 10 Economizer 11 Economizer Solenoid Valve ESV 12 Economizer Expansion Valve 13 Servi...

Page 21: ...ver the main power line Refer to the master central monitoring station technical manual for additional information Figure 3 5 Control Box Section 1 Compressor Contactor CH 2 Compressor Phase A Contactor PA 3 Compressor Phase B Contactor PB 4 Heater Contactor HR 5 Display Module 6 Communications Interface Module 7 Controller DataCORDER Module Controller 8 Key Pad 9 Remote Monitoring Receptacle 10 C...

Page 22: ...g to nameplate specifications to ensure optimal unit performance f Refrigerant Charge R 134a Receiver 4 99 kg 11 lbs g Fusible Plug Melting point 99 C 210 F Torque 6 2 to 6 9 mkg 45 to 50 ft lbs h Rupture Disc Bursts at 35 5 kg cm2 500 5 psig Torque 6 2 to 6 9 mkg 45 to 50 ft lbs i Unit Weight Refer to unit model number plate a Circuit Breaker CB 1 Trips at 29 amps CB 2 50 amp Trips at 62 5 amps C...

Page 23: ...d 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 Hz Bearing Lubrication Factory lubricated additional grease not required h Fuses Control Circuit 7 5 amps F3A F3B Controller DataCORDER 5 amps F1 F2 Emergency Bypass 10 amps FEB i Vent Positioning Sensor Electrical Output 0 5 VDC t...

Page 24: ...e humidity RH percentage 30 0 99 V 50 1 65 V 70 2 31 V 90 2 97 V Table 3 1 Safety and Protective Devices UNSAFE CONDITION DEVICE DEVICE SETTING Excessive current draw Circuit Breaker CB 1 Manual Reset Trips at 29 amps 460 VAC Circuit Breaker CB 2 50 amp Manual Reset Trips at 62 5 amps 230 VAC Circuit Breaker CB 2 70 amp Manual Reset Trips at 87 5 amps 230 VAC Excessive current draw in the control ...

Page 25: ... pulse the evaporator heaters in sequence with the compressor digital sig nal in order to absorb the excess capacity 3 5 2 Economized Operation In the economized mode see Figure 3 7 the frozen and pull down capacity of the unit is increased by sub cooling the liquid refrigerant entering the electronic expansion valve Overall efficiency is increased because the gas leav ing the economizer enters th...

Page 26: ... ECONOMIZER TXV ELECTRONIC EXPANSION VALVE DIGITAL UNLOADER VALVE ECONOMIZER RECEIVER COMPRESSOR SIGHT GLASS LIQUID LEVEL MOISTURE INDICATOR STANDARD OPERATION WITH RECEIVER EVAPORATOR PRESSURE TRANSDUCER SUCTION PRESSURE TRANSDUCER DISCHARGE PRESSURE TRANSDUCER DISCHARGE TEMPERATURE SENSOR ECON TXV SENSING BULB LIQUID LIQUID LINE SERVICE VALVE ECONOMIZER SOLENOID VALVE ECONOMIZER TXV ELECTRONIC E...

Page 27: ... desired car go temperature and humidity The DataCORDER soft ware functions to record unit operating parameters and cargo temperature parameters for future retrieval Cover age of the tempera ture control software begins with Section 4 2 Coverage of the DataCORDER software is provided in Section 4 7 The keypad and display module serve to provide user access and readouts for both of the controller f...

Page 28: ...e alarm queue MANUAL DEFROST INTERVAL Displays selected defrost mode Depress and hold the MANUAL DE FROST INTERVAL key for five 5 seconds to initiate defrost using the same logic as if the optional manual defrost switch was toggled on ENTER Confirms a selection or saves a selec tion to the controller Arrow Up Change or scroll a selection up Pre trip advance or test interrupt Arrow Down Change or s...

Page 29: ... the alarm queue Figure 4 3 Display Module 4 1 3 Controller 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 controller module wire harness connectors before performing arc welding on any part of the container CAUTION Do not attempt to use an ML2i PC card in an ML3 equipped unit The PC cards are...

Page 30: ...t AC power connected f Provide the ability to reprogram the software through the use of a memory card 4 2 1 Configuration Software Variables The configuration software is a variable listing of the components available for use by the operational soft ware This software is factory installed in accordance with the equipment fitted and options listed on the original purchase order Changes to the confi...

Page 31: ...l fans off The compressor will start for 1 second then pause for five sec onds This sequence will be repeated two additional times After the final bump start the unit will pre position the EEV to correct starting position pause and startup 4 3 3 Perishable Set Point Temperature Perishable Pulldown When cooling from a temperature that is more than 2 5 C 4 5 F above set point the system will be in t...

Page 32: ...e mode of operation is active with set points above 10 C 14 F With the variable set to 5 C the perishable mode is active above 5 C 23 F Refer to Table 4 4 When in the perishable mode the controller maintains the supply air temperature at set point the SUPPLY indica tor light will be illuminated on the display module and the default reading on the display window will be the supply temperature senso...

Page 33: ...erature rises to 0 2 C 0 4 F below set point contacts TH open to de energize the heaters The HEAT light is also de energized The evaporator fans continue to run to circulate air throughout the container c The safety heater termination thermostat HTT is attached to an evaporator coil circuit and will open the heating circuit if overheating occurs 4 3 9 Sequence of Operation Perishable Mode Capacity...

Page 34: ...e minutes The heater debounce timer is started whenever the heater contactor status is changed The heat contactor remains energized or de energized for at least three minutes even if the set point criteria are satisfied The out of range timer is started to maintain heater operation during a temporary out of range condition If the sup ply air temperature remains outside of the user selected in rang...

Page 35: ...ure drops to set point minus 0 2 C and the compressor has run for at least five minutes the unit will transition to the frozen idle mode The compressor is turned off and the evaporator fans continue to run to circulate air throughout the container If temperature rises above set point 0 2 C the unit will transition back to the frozen mode cooling 4 3 14 Frozen Mode Heat Lockout Temperature With con...

Page 36: ...V opens and contacts TC TS and TN close to restart the compressor open the ESV and restart the condenser fan motor The cool light is illuminated Figure 4 9 Frozen Mode NOTE The EEV and DUV are independently operated by the microprocessor For full diagrams and legend see Section 8 4 3 16 Frozen Mode Economy In order to activate economy frozen mode operation a frozen set point temperature must be se...

Page 37: ...etect malfunctions in the sensed temperature If probe check fails the sys tem will run for eight minutes to validate At the end of eight minutes probe alarms will be set or cleared based on the conditions seen When the return air falls to 7 C 45 F the controller ensures that the defrost temperature sensor DTS reading has dropped to 10 C or below If it has not a DTS failure alarm is given and the d...

Page 38: ... When the defrost mode is initiated the controller closes the EEV opens contacts TC TN and TE or TV to de energize the compressor condenser fan and evaporator fans The COOL light is also de energized The controller then closes contacts TH to supply power to the heaters The defrost light is illuminated When the defrost tempera ture sensor reading rises to the defrost termination thermostat setting ...

Page 39: ...eased into the system in order to provide cooling to the evaporator coil and compressor dome The controller is alerted to high compressor dome temperatures via the CPDS when the ambient temperature is greater than 43 3 C the return air temperature is less than 17 5 C and if the compressor discharge temperature is greater than 117 7 C Dome temperature control logic will disengage when return air te...

Page 40: ... sequence in which they occurred The user may scroll through the list by depressing an ARROW key c The left display will show AL where is the alarm number sequentially in the queue d The right display will show the actual alarm code AA will display for an active alarm where is the alarm code Or IA will display for an inactive alarm See Table 4 6 e END is displayed to indicate the end of the alarm ...

Page 41: ...ta Storage Memory Real Time Clock with internal battery backup Six Thermistor Inputs Interrogation Connections Power Supply battery pack The DataCORDER performs the 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 pre trip testing d Records DataCORDER ...

Page 42: ...e and the Generic Mode a Standard Mode In the standard mode the user may configure the DataCORDER to record data using one of seven standard con figurations The seven standard configuration variables with their descriptions are listed in Table 4 3 The inputs of the six thermistors supply return USDA 1 2 3 and cargo probe and the humidity sensor input will be generated by the DataCORDER See Figure ...

Page 43: ...mperature with variable resolutions depending on temperature range The long records temperature in 0 01 C 0 02 F steps for the entire range Table 4 2 DataCORDER Configuration Variables CONFIGURATION NO TITLE DEFAULT OPTION dCF01 Future Use dCF02 Sensor Configuration 2 2 5 6 9 54 64 94 dCF03 Logging Interval Minutes 60 15 30 60 120 dCF04 Thermistor Format Short Long dCF05 Thermistor Sampling Type A...

Page 44: ...are 5120 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 Centigrade _______________________________________________________________________________________ May 31 2001 2 5 5 9 8 1 4 0 l a i r e S r e n i a t n o C 6 6 1 t n i o p t e S 9 Sensors Logge...

Page 45: ...he unit is turned on via the stop start switch 2 Controller DC battery pack power If a battery pack is installed the DataCORDER will power up for commu nication when an interrogation cable is plugged into an interrogation receptacle 3 External DC battery pack power A 12 volt battery pack may also be plugged into the back of the interrogation cable which is then plugged into an interrogation port N...

Page 46: ...the DataCORDER for each corresponding Pre trip test 4 7 10 DataCORDER Communications Data retrieval from the DataCORDER can be accomplished by using one of the following DataReader DataLINE or a communications interface module NOTE A DataReader DataLINE or a communications interface module display of Communication Failed is caused by faulty data transfer between the DataCORDER and the data retriev...

Page 47: ...nto 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 within the DataCORDER memory thus meeting USDA criteria Information on USDA is provided in the following sub paragraphs a USDA Recording A special type of recording is used for USDA cold treatment purposes Col...

Page 48: ... the list backward c 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 inactive d END is displayed to indicate the end of the alarm list if any alarms are active CLEAr is displayed if all the alarms in the list are inactive e If no alarms are active the alarm queue may b...

Page 49: ... 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 Table 4 4 Controller Configuration Variables CONFIG TITLE DEFAULT OPTION CnF02 Evaporator Fan Speed dS Dual SS Single CnF03 Control Sensors FOUr duAL CnF04 Dehumidification Mode On OFF CnF08 Single Phase 3 Phase E...

Page 50: ...EHUM CnF51 Timed Defrost Disable 0 0 out 1 in CnF52 Oil Return Algorithm 1 0 out 1 in CnF53 Water Cool Oil Return Logic 0 0 out 1 in CnF55 TXV Boost Relay 0 0 out 1 in CnF56 TXV Boost Circuit 0 0 out 1 in CnF59 Electronic Expansion Valve 0 0 none 1 EC 2 KE 3 NA CnF60 Compressor Cycle Perishable Cooling 0 0 out 1 in CnF61 ACT ASC Control Enable 0 0 out 1 in CnF62 Extended Temperature Control Enable...

Page 51: ...e or a control alarm indication Cd07 Main Power Voltage The main supply voltage is displayed Cd08 Main Power Frequency The value of the main power frequency is displayed in Hertz The frequency displayed will be halved if either fuse F1 or F2 is bad alarm code AL21 Cd09 Ambient Temperature The ambient sensor reading is displayed Cd10 Evaporator Temperature Sensor Evaporator temperature sensor readi...

Page 52: ... functions to meet the operational needs of the container Cd27 Defrost Interval Hours or Automatic There are three modes for defrost initiation user selected timed intervals automatic control and PuLs The user selected values are OFF 3 6 9 12 24 hours AUTO or PuLs The factory default is AUTO Automatic defrost starts with an initial defrost at three hours then the interval to the next defrost is ad...

Page 53: ...or dehumidification When the mode is activated the control probe LED flashes on and off every second to alert the user If not configured the mode is permanently deactivated and will display The value can be set to OFF TEST or a range of 65 to 95 relative hu midity in increments of 1 If bulb mode is active code Cd35 and Lo speed evap orator motors are selected code Cd36 then set point ranges from 6...

Page 54: ...valve Provides readings such as Percent Capacity EEV Capacity Mode LIV and DUV Refer to Section 7 16 for operating instructions Cd43 eAutoFresh Mode Code Cd43 is used to select the mode of operation for the eAutoFresh slides Asso ciated parameters can also be selected from submenus OFF USER DELAY TEST and gASLM If the unit is not configured for eAutoFresh Cd43 will display Cd44 eAutoFresh Values C...

Page 55: ...ly selected ASC On or Off The default is Off NSC 1 2 SP 0 C F in 0 1 degree increments The default is 10 0 C DAY 0 0 99 increments of 1 The default is 1 SP 1 C F in 0 1 degree increments The default is 10 0 C DAY 1 0 99 increments of 1 The default is 1 SP 2 C F in 0 1 degree increments The default is 10 0 C Cd54 Electronic Expansion Valve Status Reading for evaporator superheat is shown on the rig...

Page 56: ...troller Function Codes Continued CODE TITLE DESCRIPTION Start Troubleshooting Unit configured correctly Pass Pre trip inspection Active Alarms Correct software version Did Evaporator fans start Operating pressures normal Check Power Supply Install Latest Software Revision Load correct unit configuration See alarm details repair Correct all faults Yes Yes Yes Yes No Yes No Yes No No No No Correct R...

Page 57: ...tes replace the keypad AL06 Keypad or Keypad Harness Fail Controller has detect ed one of the keypad keys is continuously activity Keypad or Harness Power cycle the unit Resetting the unit may cor rect problem monitor the unit If the alarm reappears re place the keypad and har ness AL07 Fresh Air Vent Open with Frozen Set Point The VPS is reading greater than 0 CMH while unit is in frozen mode Ven...

Page 58: ...ual measured 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 sensor or amp clamp tool Replace current sensor if defective Amperage is indeed too high Confirm supply voltage frequency is within speci fication and balanced ac cording to Electrical Data Section 3 3 Correct power supply Operating Conditions Make sure s...

Page 59: ...or 10 minutes within the last hour Restrictions in the refrigeration system Ensure Liquid Line Ser vice Valve is fully open Open Liquid Line Service Valve as needed Filter Drier Check the filter drier if it is iced up or very cold it indicates that the filter drier needs replacement Replace the filter drier if needed refer to FILTER DRIER Service Section 7 8 Condenser Fan Check Condenser Fan for p...

Page 60: ...heck ESV coil resis tance at TP7 to TP9 if short to ground or if re sistance is less than 4 ohms coil is defective Check CF ES EF HR coils for short to ground if short is 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 Service Section 7 17 AL21 Control Cir cuit Fuse F1 F2 On...

Page 61: ... P5 fails replace the de fective sensor as deter mined by P5 refer to TEMPERATURE SEN SOR Service Section 7 19 AL27 Analog to Digital Accu racy Failure Controller AD converter faulty Controller Power cycle the unit If the alarm persists it indi cates a defective micro processor Replace defective micro processor refer to Control ler Service Section 7 17 AL28 Low Suction Pressure Suction pressure to...

Page 62: ...P5 fails replace the de fective sensor as deter mined by P5 refer to TEMPERATURE SEN SOR Service Section 7 19 AL56 Primary Return Sen sor RTS Invalid Return Tem perature Sensor RTS reading Return Tempera ture Sensor RTS Perform Pre trip P5 If P5 passes no further ac tion is required If P5 fails replace the de fective sensor as deter mined by P5 refer to TEMPERATURE SEN SOR Service Section 7 19 AL5...

Page 63: ... ELECTRICAL DATA Section 3 3 Correct power supply Current limit set too low Check current limit set ting Code Cd32 The current limit can be raised maximum of 23 amps using Cd32 AL64 Discharge Tempera ture Sensor CPDS Discharge Tempera ture sensor out of range Discharge tem perature sensor CPDS Test the CPDS refer to Sensor Checkout Proce dure Section 7 19 1 Replace the CPDS if de fective refer to ...

Page 64: ...Service Section 7 19 AL71 Secondary Return Sen sor RRS Secondary Return Sensor RRS is out of range Secondary Return Sensor RRS Perform Pre trip P5 If P5 passes no further ac tion is required If P5 fails replace the de fective sensor as deter mined by P5 refer to TEMPERATURE SEN SOR Service Section 7 19 AL72 Control Temp Out of Range After the unit goes in range for 30 minutes then out of range for...

Page 65: ...e Internal program update failure ERR 7 Controller failure Internal version firmware incompatible ERR 8 Data CORDER failure Internal DataCORDER memory failure ERR 9 Controller failure Internal controller memory failure In the event that a failure occurs and the display cannot be updated the status LED will indicate the appropriate ERR code using Morse code as shown below E R R 0 to 9 ERR0 ERR1 ERR...

Page 66: ...ange is within 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 P3 0 Low Speed Evaporator Fan Mo tors On Setup The High Speed Evaporator fans will be turned on for 10 seconds then off for two seconds then the low speed evaporator fans are turned on A curren...

Page 67: ...sor ETS2 is within 0 5 degree C of the primary evaporator temperature sensor ETS1 P5 8 Suction Pressure Transducer Test Requirements Test P5 7 must pass before this test is run Pass Fail Criteria Passes if suction pressure transducer SPT is within 0 psi of saturation pressure at current evaporator temperature Also passes if suction pressure transducer SPT is within 1 psi of discharge pressure 6 ho...

Page 68: ... are conducted by changing the status of each individual valve and comparing suction pressure change and or compressor current change with predetermined values The tests will cause the compressor and condenser fans to cycle on and off as needed to generate the pressure required for the individual pre trip sub tests The compressor will start in order to build discharge pressure followed by a compre...

Page 69: ...uirements Test P7 0 must pass for this test to execute Setup The con denser fan is started and a 60 second timer is started Pass Fail Criteria Passes the test if the high pressure switch HPS closes with in the 60 second time limit otherwise it fails P8 0 Perishable Mode Heat Test Setup If the container temperature is below 15 6 C 60 F the set point is changed to 15 6 C and a 180 minute timer is st...

Page 70: ...ture is above 7 2 C at the start of the test then the test proceeds immediately to test 10 1 During this test the control temperature will be shown in the right display Pass Fail Criteria The test fails if the 180 minute timer expires before the control temperate reaches set point 0 3 C 0 17 F If the test fails it will not auto repeat There is no pass display for this test Once the control tempera...

Page 71: ...ght 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 the controller serial number dC28 Minimum Days Left An approximation of the number of logging days remaining until the Data CORDER starts to overwrite the existing data dC29 Days Stored Number of...

Page 72: ...Test Pass Fail Skip 6 2 Discharge Pressure Sensor Test Pass Fail Skip 6 3 Suction Pressure Sensor 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 Digital Unloader Valve Test Pass Fail Skip 7 0 High Pressure Switch Closed Pass Fail Skip Result AMBS DPT or CPT if equipped Input values that compon...

Page 73: ... its specified range The DataCORDER is configured by default to record the supply and return recorder sensors The DataCORDER may be configured to record up to eight additional net work data points An alarm number AL78 to AL85 is assigned to each con figured point When an alarm occurs the DataCORDER must be interrogated to identify the data point assigned When a humidity sensor is installed it is u...

Page 74: ......

Page 75: ...Check condenser coil for cleanliness Wash with fresh water c Open control box door Check for loose electrical connections or hardware d Check color of moisture liquid indicator 5 2 CONNECT POWER WARNING Do not attempt to remove power plug s be fore turning OFF start stop switch ST unit circuit breaker s and external power source WARNING Make sure the power plugs are clean and dry before connecting...

Page 76: ...scroll in intervals of 5 CMH 3 CFM Scrolling to Function Code 45 will display the Fresh Air Vent Position The position of the vent will be recorded in the DataCORDER whenever the unit is running under AC power and any of the following Trip start On every power cycle Midnight Manual changes greater than 5 CMH 3 CFM Remaining in the new position for at least 4 minutes NOTE The user has four minutes ...

Page 77: ... Controller Function Codes for the container ID Cd40 software version Cd18 and unit model number Cd20 will be displayed in sequence c Continue with Start Up Inspection Section 5 6 5 5 2 Stopping the Unit To stop the unit place the START STOP switch in position 0 OFF 5 6 START UP INSPECTION 5 6 1 Physical Inspection Check rotation of condenser and evaporator fans 5 6 2 Check Controller Function Cod...

Page 78: ... user may also scroll down to select any of the individual tests When only the short sequence is configured it will appear as AUtO in the display Otherwise AUtO1 will indicate the short sequence and AUtO2 will indicate the long sequence The test short sequence will run tests P0 through P6 The long test sequence will run tests P0 through P10 A detailed description of the pre trip test codes is list...

Page 79: ...displayed 1 Individually selected tests other than the LED Display test will perform the operations necessary to ver ify the operation of the component At the conclusion PASS or FAIL will be displayed This message will remain displayed for up to three minutes during which time a user may select another test If the three minute time period expires the unit will terminate pre trip and return to cont...

Page 80: ...e triggered for the invalidated probe If it is a run time defrost probe check the invalidated probe will be passed over and no alarm will be triggered However if the best supply probe is greater than 1 2 C 2 2 F difference with respect to its return probes the best supply probe is also invalidated If the unit is in perishable operation a probe alarm will be triggered for both supply probes If the ...

Page 81: ... Check Start Stop switch OFF or defective Check Component s not operating Evaporator fan motor internal protector open 7 10 Condenser fan motor internal protector open 7 7 Compressor internal protector open 7 4 High pressure switch open 6 7 Heat termination thermostat open Replace Malfunction of current sensor Replace Compressor hums but does not start Low line voltage Check Single phasing Check S...

Page 82: ...G Refrigeration system Abnormal pressures 6 7 Abnormal temperatures 6 13 Abnormal currents 6 14 Controller malfunction 6 9 Evaporator fan or motor defective 7 10 Compressor service valves or liquid line shutoff valve partially closed Open valves completely Frost on coil 6 10 Digital unloader valve stuck open Replace Electronic expansion valve Replace 6 4 UNIT WILL NOT HEAT OR HAS INSUFFICIENT HEAT...

Page 83: ...5 Loose terminal connections Tighten Defective wiring Replace Defrost temperature sensor defective or heat termination thermostat open Replace Heater contactor or coil defective Replace Will not initiate defrost manually Manual defrost switch defective Replace Keypad is defective Replace Defrost temperature sensor open Replace Initiates but relay DR drops out Low line voltage 3 3 Initiates but doe...

Page 84: ...essor Compressor start up after an extended shutdown Normal Brief chattering when manually shut down Compressor operating in reverse 6 12 Loose mounting bolts or worn resilient mounts Tighten Replace Loose upper mounting 7 4 1 Liquid slugging 7 12 Condenser or Evaporator Fan Bent loose or striking venturi Check Worn motor bearings 7 7 7 10 Bent motor shaft 7 7 7 10 6 9 MICROPROCESSOR MALFUNCTION W...

Page 85: ... 6 11 Failed suction pressure transducer SPT or evaporator pressure transducer EPT Replace EEV control malfunction Replace Improperly seated powerhead Ensure power head is locked and in place Liquid slugging in compressor Failed suction pressure transducer SPT or evaporator pressure transducer EPT Replace Failed EEV Replace 6 12 COMPRESSOR OPERATING IN REVERSE NOTE The compressor may start in reve...

Page 86: ...on Replace Failed suction pressure transducer SPT or evaporator pressure transducer EPT Replace Discharge temperature sensor drifting high Replace Failed economizer expansion valve economizer coil or economizer solenoid valve Replace Plugged economizer expansion valve economizer coil or economizer solenoid valve Replace Loose or insufficiently clamped sensor Replace 6 14 ABNORMAL CURRENTS Unit rea...

Page 87: ...e Set 1 Opened Backseated Hand Valve 2 Suction Pressure Gauge 3 Discharge Pressure Gauge 4 Closed Frontseated Hand Valve 5 Connection to high side of system 6 Connection to either a Refrigerant cylinder OR b Oil Container 7 Connection to low side of system When the suction pressure hand valve is frontseated turned all the way in the suction low pressure can be checked When the discharge pressure h...

Page 88: ...1 0 psig 2 Front seat both manifold gauge set valves and dis connect from cylinder The gauge set is now ready for use 7 3 REFRIGERATION SYSTEM SERVICE UNITS WITH STANDARD PIPING 7 3 1 Service Connections The compressor suction compressor discharge and the liquid line service valves see Figure 6 3 are provided with a double seat and an access valve which en ables servicing of the compressor and ref...

Page 89: ...ce valve e Repeat the procedure to connect the other side of the gauge set CAUTION To prevent trapping liquid refrigerant in the manifold gauge set be sure set is brought to suc tion pressure before disconnecting Removing the Manifold Gauge Set a While the compressor is still ON backseat the high side service valve b Midseat both hand valves on the manifold gauge set and allow the pressure in the ...

Page 90: ...cracking the liquid line valve momentarily to build up a slight positive pressure g 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 moisture in the system h After repairs have been made be sure to perform a refrigerant leak check refer to Section 7 3 3 and evacuate and dehy...

Page 91: ...er 07 00176 11 c If possible keep the ambient temperature above 15 6 C 60 F to speed evaporation 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 d Additional time may be saved during a complete system pump down by replacing the filter drier with a ...

Page 92: ...s Shut off the vacuum pump Wait five minutes to see if vacuum holds This procedure checks for residual moisture and or leaks j With a vacuum still in the unit the refrigerant charge may be drawn into the system from a refrigerant con tainer on weight scales Procedure Partial System a If refrigerant charge has been removed from the low side only evacuate the low side by connecting the evacuation se...

Page 93: ...dence of leaks Repair as necessary Refer to Section 7 3 3 b Maintain the conditions outlined in paragraph Section 7 3 5 c Fully backseat the suction service valve and remove the service port cap d Connect charging line between suction service valve port and cylinder of refrigerant R 134a Open VAPOR valve e Partially frontseat turn clockwise the suction service valve and slowly add charge until the...

Page 94: ... the suction and discharge service connections and uncouple the unloader and economizer lines from the compressor i Cut the dome temperature sensor wires The replacement compressor comes with a dome temperature sensor already assembled j Remove and save the compressor base mounting bolts Discard the 4 top resilient mounts and washers k Remove slide out the old compressor from the unit l Inspect co...

Page 95: ...nd charge it with R 134a refrigerant see Section 7 3 4 and Section 7 3 5 u Open the compressor terminal cover and connect the compressor power cable following the steps below v Liberally coat the orange gasket surfaces with the Krytox lubricant w Install the orange gasket part onto the compressor fusite with the grooved or threaded side out Ensure that the gasket is seated onto the fusite base x C...

Page 96: ...or continuity light across switch terminals Ohmmeter will indicate no resistance or con tinuity light will be illuminated if the switch closed after relieving compressor pressure c Connect hose to a cylinder of dry nitrogen Figure 7 6 Figure 7 6 High Pressure Switch Testing d Set nitrogen pressure regulator at 26 4 kg cm2 375 psig with bleed off valve closed e Close valve on cylinder and open blee...

Page 97: ...tions per Section 7 3 3 Evacuate the unit then charge the unit with refrigerant 7 7 CONDENSER FAN AND MOTOR ASSEMBLY CAUTION Do not open condenser fan grille before turning power OFF and disconnecting power plug The condenser fan rotates counter clockwise viewed from front of unit pulls air through the condenser coil and discharges horizontally through the front of the unit To replace motor assemb...

Page 98: ... 1 Evaporator Coil Replacement a Pump unit down Refer to Section 7 3 2 Evacuate if unit is not equipped with service valves Refer to Section 7 3 4 b With power OFF and power plug removed remove the screws securing the panel covering the evaporator section upper panel c Disconnect the defrost heater wiring d Remove the mounting hardware from the coil e Unsolder the two coil connections one at the d...

Page 99: ... unit 3 Lift heater slightly up and out to remove 4 To replace a heater do steps 1 through 3 in reverse To remove Omega heater see Figure 7 7 1 Remove the two tube clamps located near the top of the heater element 2 Locate holding clips positioned at the bottom of the heater element and rotate slightly toward the center of the container unit 3 Carefully pull heater out to remove 4 To replace a hea...

Page 100: ...n from the shaft Remove the washers and key c Remove the four 1 4 20 x 3 4 long bolts that are located under the fan that support the motor and stator housing Remove the motor and plastic spacer 7 10 3 Assemble the Evaporator Fan Assembly a Assemble the motor and plastic spacer onto the stator NOTE When removing the black nylon evaporator fan blade care must be taken to assure that the blade is no...

Page 101: ...uminum oxide Aluminum oxide is a coarse crystalline deposit most likely the result of surface corrosion on the aluminum parts within the container If left untreated over time it may build up in thickness and eventually flake as a light weight white powder The surface corrosion of aluminum is brought about by exposure to chemicals such as sulfur dioxide and possibly other fumigants that are commonl...

Page 102: ... and follow recommended dilution ratios More is not always better Using non diluted cleaner is not recommended Cleaning Procedure a Remove the upper evaporator access panel inside of the unit b Spray the surface with water before applying the cleaning solution This helps the cleaner work better c Liberally apply the prepared cleaner solution 5 parts water and 1 part cleaner d Allow the cleaner to ...

Page 103: ...stallation make sure the EEV coil is snapped down fully and the coil retention tab is properly seated in one of the valve body dimples Also ensure that coil boot is properly fitted over valve body See Figure 7 9 3 Replace filter drier 4 Evacuate to 500 microns by placing vacuum pump on liquid line and suction service valve 5 Open liquid line service valve and check refrigerant level 6 Check superh...

Page 104: ...conomizer line 6 VALVE REMOVAL The preferred method of removing the valve is to cut the connection between the brazed section and the valve using a small tube cutter Remove valve Alternately use a wet rag to keep valve cool Heat inlet and outlet connections to valve body and remove valve 7 Clean the valve stem with mild cleaner if necessary b Installing an Expansion Valve 1 The economizer valve sh...

Page 105: ...re moving the solenoid valve is to cut the connection between the brazed section and the valve using a small tube cutter Remove valve Alternately heat inlet and outlet connections to valve body and remove valve 3 Clean the valve stem with mild cleaner if necessary c Installing the Solenoid Valve 1 Fit the new solenoid valve into position and braze Use a wet rag to keep valve cool whenever brazing ...

Page 106: ...on and the valve using a small tube cutter Remove valve See Figure 7 12 Alternately use a wet rag to keep valve cool Heat outlet connection to valve body and remove valve Figure 7 12 Digital Unloader Valve DUV Assembly 1 Sleeve 2 O ring hidden 3 Screen Valve Strainer 4 Tube 5 Solenoid Valve Body 6 Hex Nut 1 2 OD 7 Examine compressor and service valves Ensure that the O ring is not stuck in the gla...

Page 107: ...machinery control To operate the override do the following a Press the CODE SELECT key then press an ARROW key until Cd41 is displayed in the left window The right window will display a controller communications code b Press the ENTER key The left display will show a test name alternating with the test setting or time remain ing Use an ARROW key to scroll to the desired test Press the ENTER key an...

Page 108: ... The strap should be worn during any service work on a module even when it is placed on the mat 7 17 2 Controller Troubleshooting A group of test points TP see Figure 7 13 are provided on the controller for troubleshooting electrical circuits see schematic diagram Figure 8 2 A description of the test points follows NOTE Use a digital voltmeter to measure AC voltage between TP s and ground TP9 exce...

Page 109: ...troller cfYYMMDD ml3 multi configuration file 3 Turn unit ON via start stop switch ST 7 17 3 1Programming Procedure for Software Versions 5328 and Greater AND With Updated Menu Option menu0111 ml The updated menu option allows the operational soft ware to be loaded and time and container identification to be set a Procedure for loading operational software 1 The display module will display the mes...

Page 110: ...n unit ON using start stop switch ST 4 Press the UP or DOWN arrow key until display reads Set UP 5 Press the ENTER key on the keypad 6 Press the UP or DOWN arrow key until display reads XXXX 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 the card 7 Press the ENTER key on the keypad 8 The display module will ...

Page 111: ...enter the in formation for the current field and move to the next value the CODE SELECT key will allow modification of the previous value 4 When the last value is entered press the ENTER key to enter the information to the controller the CODE SELECT key will allow modification of the previous value 7 17 4 Removing and Installing a Control Module a Removal 1 Disconnect all front wire harness connec...

Page 112: ...select 45 will automatically display Press the Enter key and hold for five seconds 3 After the enter key has been pressed the display will read CAL for calibration 4 Press the ALT MODE key and hold for five seconds 5 After the calibration has been completed Code 45 will display 0 CMH CFM a Lower Vent Position Sensor Calibration Calibration of the Lower VPS is only required when the air makeup slid...

Page 113: ... sensor if it is not continue with the following c Turn unit OFF and disconnect power supply d Refer to Section 7 17 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 or CPDS as required Follow those wires to the connector and using the pins of the plug measu...

Page 114: ...3 9 165 1 537 26 7 16 144 200 5 5 42 24 700 37 8 100 5 828 76 7 170 1 402 25 6 14 134 800 6 6 44 23 390 38 9 102 5 571 79 4 175 1 281 24 4 12 126 100 7 7 46 22 160 40 0 104 5 327 82 2 180 1 171 23 3 10 118 100 8 9 48 20 990 41 1 106 5 095 85 0 185 1 072 22 2 8 110 500 10 50 19 900 42 2 108 4 874 87 8 190 983 21 1 6 103 600 11 1 52 18 870 43 3 110 4 665 90 6 195 902 20 4 97 070 12 2 54 17 900 44 4 ...

Page 115: ...743 66 150 8 17 294 142 287 6 1 928 8 17 6 426 904 68 154 4 16 133 144 291 2 1 839 6 21 2 383 706 70 158 0 15 067 146 294 8 1 753 4 24 8 345 315 72 161 6 14 078 148 298 4 1 670 2 28 4 311 165 74 165 2 13 158 150 302 0 1 591 0 32 0 280 824 76 168 8 12 306 152 305 6 1 508 2 35 6 253 682 78 172 4 11 524 154 309 2 1 430 4 39 2 229 499 80 176 0 10 793 156 312 8 1 362 6 42 8 207 870 82 179 6 10 122 158 ...

Page 116: ...re d Cut replacement sensor wires opposite colors back 40 mm 1 1 2 inches See Figure 7 14 e Strip back insulation on all wiring 6 3 mm 1 4 inch Figure 7 14 Sensor Types f Slide a large piece of heat shrink tubing over the cable and place the two small pieces of heat shrink tubing one over each wire before adding crimp fit tings as shown in Figure 7 15 Figure 7 15 Sensor and Cable Splice 1 Cable 2 ...

Page 117: ...nsors STS and SRS To properly position a supply sensor the sensor must be fully inserted into the probe holder Figure 7 16 Do not allow heat shrink covering to contact 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 positioning will give the sensor the optimum amount of expo sure to t...

Page 118: ...7 8 9 10 11 12 13 1 Supply Air Stream 2 Insulation 3 Back Panel 4 Supply Sensor 5 Mounting Clamp 6 Sensor Wires 7 Drip Loop 8 Gasket Mounting Plate 9 Gasketed Support Plate 10 Gasketed Cover 11 TIR Bolts 12 STS Probe 13 SRS Probe 1 50 in 38 1cm 1 2 1 Mounting Clamp 2 Return Sensor 1 00 in 25 4cm 1 2 3 4 1 Wire Tie 2 ETS1 and 2 3 ETS Tube Holder 4 Insulation ...

Page 119: ...reads and records data from the controller in present time under normal operating conditions If the power has been OFF for more than thirty days the recorder will NOT re 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 Partlow Recorder CTD part number ...

Page 120: ...g the Recording Thermometer For Electronic Partlow Recorder CTD part number 12 00464 xx Where xx an odd number example 12 00464 03 NOTE Use chart CTD part number 09 00128 00 F part number 09 00128 01 C a Press the Calibration button item 7 Figure 7 20 on the bottom of the recorder The pen tip will drive fully down scale then move upscale to the chart ring at 29 C 20 F and stop 1 3 4 5 6 7 8 9 10 2...

Page 121: ...he pen tip manually to the 0 C 32 F chart ring Tighten the screws when adjustment is complete c Press the calibration button and the pen will position itself to the correct temperature reading 7 21 MAINTENANCE OF PAINTED SURFACES The refrigeration unit is protected by a special paint system against the corrosive atmosphere in which it normally operates However should the paint system be damaged th...

Page 122: ...e ends of the wires d Refit the circuit breaker panel e Fit the new CIM into the unit f Attach three wires CB21 CIA3 CB22 CIA5 and CB23 CIA7 to the CIM at connection CIA g Locate connectors CIA and CIB remove plugs if re quired and attach to the module h Replace the low voltage shield Table 7 4 Recommended Bolt Torque Values Dry Non Lubricated for 18 8 Stainless Steel BOLT DIA THREADS in lb ft lb ...

Page 123: ...2 9 20 0 0 20 0 20 6 21 3 7 25 5 0 26 0 26 4 20 4 6 31 7 0 32 0 32 2 19 5 6 36 6 0 39 0 39 0 18 6 5 44 8 0 46 0 45 2 17 7 6 52 4 0 53 0 52 4 16 8 6 59 3 0 60 0 59 6 14 9 7 66 9 0 68 0 67 8 13 10 8 74 5 0 76 0 74 10 12 12 0 82 7 0 84 0 83 12 11 13 2 91 0 0 93 0 91 14 10 14 5 100 0 1 02 1 00 16 9 15 8 108 9 1 11 1 09 18 8 17 1 117 9 1 20 1 18 20 7 18 5 127 6 1 30 1 28 22 6 19 9 137 2 1 40 1 37 24 4 ...

Page 124: ...7 90 32 104 3 719 1 7 33 7 19 95 35 114 0 786 0 8 01 7 86 100 38 124 2 856 4 8 73 8 56 105 41 135 0 930 8 9 49 9 31 110 43 146 4 1009 10 29 10 09 115 46 158 4 1092 11 14 10 92 120 49 171 2 1180 12 04 11 80 125 52 184 6 1273 12 98 12 73 130 54 198 7 1370 13 97 13 70 135 57 213 6 1473 15 02 14 73 140 60 229 2 1580 16 11 15 80 145 63 245 6 1693 17 27 16 93 150 66 262 9 1813 18 48 18 13 155 68 281 1 1...

Page 125: ... Diagrams The diagrams are presented as follows Figure 8 1 provides the legend for use with Figure 8 2 the schematic diagram for standard refrigeration units Figure 8 2 provides the basic schematic diagram for standard refrigeration units Figure 8 3 and Figure 8 4 provides the wiring diagram for standard refrigeration units ...

Page 126: ...SE C 6 D 6 D 18 E 18 FLA FULL LOAD AMPS HPS HIGH PRESSURE SWITCH G 7 HR HEATER CONTACTOR P 5 M 13 LEGEND SYMBOL DESCRIPTION HS HUMIDITY SENSOR OPTIONAL F 21 HTT HEAT TERMINATION THERMOSTAT G 13 HW HEATER WIRE TERMINAL R 4 ICF INTERROGATOR CONNECTOR FRONT T 21 ICR INTERROGATOR CONNECTOR REAR T 22 IP INTERNAL PROTECTOR E 12 H 10 H 12 IRL IN RANGE LIGHT OPTION L 14 PA UNIT PHASE CONTACTOR L 7 M 7 N 1...

Page 127: ...8 3 T 359 Figure 8 2 SCHEMATIC DIAGRAM Evergreen Unit Configuration ...

Page 128: ...T 359 8 4 Figure 8 3 UNIT WIRING DIAGRAM Evergreen Unit Configuration Sheet 1 of 2 ...

Page 129: ...8 5 T 359 Figure 8 4 UNIT WIRING DIAGRAM Evergreen Unit Configuration Sheet 2 of 2 ...

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Page 131: ...4 4 Connect Power 5 1 Connect Remote Monitoring Receptacle 5 3 Connection To 380 460 VAC Power 5 1 Control Box 2 1 Control Box Section 3 5 Controller 2 2 4 3 7 22 Controller Alarm Indications 4 31 Controller Alarms 4 14 Controller Pre trip Test Codes 4 40 Controller Programming Procedure 7 23 Controller Sequence and Modes of Operation 4 5 Controller Software 4 4 Controller Troubleshooting 7 22 D D...

Page 132: ...efrost Interval key operation 4 11 Microprocessor malfunction 6 4 N No evaporator air flow or restricted air flow 6 4 O Observe Unit Operation 5 5 Operating Precautions 1 1 Operational Software Function Codes 4 4 Option Descriptions 2 1 P Partlow Recorders If Equipped 5 3 Perishable Mode Dehumidification 4 8 Perishable Mode System Pressure Regulation 4 13 Perishable Mode Cooling Sequence of Operat...

Page 133: ...ion Statements 1 1 Start Temperature Recorder 5 3 Start up Compressor Bump Start 4 5 Start up Compressor Phase Sequence 4 5 Starting and Stopping Instructions 5 3 Starting the Unit 5 3 Start up Inspection 5 3 Stopping the Unit 5 3 T Temperature Control Microprocessor System 4 1 Temperature Readout 2 1 Temperature Recorder 2 2 Temperature Sensor Service 7 26 Thermistor Format dCF04 4 17 To Display ...

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Page 136: ... 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 transicold com ...

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