Operating and service manual Controlled Atmosphere · PDF file3 Operating and service manual, Controlled Atmosphere Legend Short name Name Pmem Membrane pressure Tpump Vacuum pump
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Version 810800A - Dec 2010
Bjerndrupvej 476360 Tinglev, Denmark
Phone: +45 73 64 34 00 Fax.: +45 73 64 35 69
E-mail: starcool@starcool.dk www.starcool.dk
Version 810800A - Dec 2010 © Copyright 2010 Maersk Container Industry AS
24-hour hotline support
Call us at +45 7364 3500 or send us an e-mail at service@starcool.dk. Our service department is available 24 hours a day, 7 days a week - providing easy access to the answers you need.
Guideline: Order procedure
Purchase spare parts for the Star Cool reefer machine fast and reliable via the internet.
Customers, service providers and other repair shops order directly from Star Cool. Vessels shall contact the relevant customer (shipping line) for ordering.
All orders are placed centrally with Star Cool where our staff will assign the order to the distribution centre located closest to the required delivery address and arrange shipment from there.
To be able to order spare parts from www.starcool.dk, please register at the site, to receive a login and password.
Operating and service manualControlled AtmosphereStar Cool refrigeration unit Model SCI - XX - X - CA
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Operating and service manual, Controlled Atmosphere
PrefaceThe Star Cool CA is a controlled atmosphere system designed to prolong the shelf life of perisha-bles by regulating the internal atmosphere of the container. The container’s atmosphere obtains the desired gas composition based on entered set points for O2 and CO2 via the controller.The desired atmospherical composition of the gas serves to lower the respiration of the perishables, and thereby providing a prolonged shelf life.
ATTENTION! Due to regulation of the cargo atmosphere during transport, oxygen level may be low and/or carbon dioxide level high inside the container! Please check gas levels and fl ush with fresh air before entering and unloading. Exposure to low oxygen/high car-bon dioxide may cause loss of consciousness and suffocation.
This version of the manual is dated December 2010, edited by Maersk Container Industry AS. All rights reserved. This user’s manual is valid for software version 0345 or newer versions.The information herein is subject to change without notice and does not represent a commitment on any part of Maersk Container Industry AS.While the information herein is assumed to be accurate, Maersk Container Industry AS assumes no responsibility for any errors or omissions that may appear in this documentation.
This manual is valid for:
Model SCI - XX - X - CA Release Date 01.12.2010
Warnings Do not operate or maintain this refrigeration unit until you have familiarized your-self completely with the equipment and operating of this unit by reading the in-struction in this addendum and the Operating and service manual for Star Cool units.
Do not enter the container - including opening the service hatches - when oxygen level is below 20.9%.
Do not perform any welding on the unit before disconnecting the power plug.
Disconnect main power supply to unit before inspecting the interior of the con-troller box.
The unit is charged with R134a and ester oil BSE 55. Do not use any other refrig-erant or oil.
Do not use contaminated refrigerant or oil.
Do not release R134a into the atmosphere. Use recovery equipment according to present legislation.
During maintenance please observe that R134a is operating with high and low temperatures in combination with high pressures, which may cause personal in-juries if not handled properly. During recovery and maintenance of R134a unit personal protection equipment has to be worn.
Do not trap any liquid refrigerant inside pipes during soldering work. This may lead to explosion of pipe.
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Operating and service manual, Controlled Atmosphere
ContentsPreface .......................................................................................................................................................1Warnings ....................................................................................................................................................1Legend........................................................................................................................................................3CA function overview - two versions ...............................................................................................................3Container venting procedure .........................................................................................................................5Menu structure ............................................................................................................................................7Setpoints ....................................................................................................................................................8CA function on/off ........................................................................................................................................8Additional menu information for CA ................................................................................................................8Data log ......................................................................................................................................................9Warning ......................................................................................................................................................9Pre Trip Inspection, PTI .................................................................................................................................9Manual inspection ......................................................................................................................................10Function test .............................................................................................................................................10Operation ..................................................................................................................................................10Manual mode .............................................................................................................................................10CA curtain .................................................................................................................................................11Vacuum system test ...................................................................................................................................11Problem surrounding the vacuum hose .........................................................................................................12Problem located at membrane .....................................................................................................................12Simple trouble shooting vacuum pump / controller module .............................................................................12Container leak test .....................................................................................................................................12Oil charge and drain ...................................................................................................................................13Replacement of vacuum pump heating element .............................................................................................13Locations of components .............................................................................................................................14Components ..............................................................................................................................................15Replacing the controller module ...................................................................................................................18Temperature sensor alarms (1XX) ................................................................................................................19Pressure sensor alarms (2XX) ......................................................................................................................22Other sensor alarms (3XX) ..........................................................................................................................26Power alarms (4XX) ....................................................................................................................................28Operation alarms (6XX) ..............................................................................................................................29Communication alarms (7XX) ......................................................................................................................36Test alarms (8XX).......................................................................................................................................39Controller alarms (9XX) ..............................................................................................................................47Controller overview ....................................................................................................................................49Overall wiring schematic .............................................................................................................................53Overall wiring schematic (alternate) .............................................................................................................54
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Operating and service manual, Controlled Atmosphere
LegendShort name Name
Pmem Membrane pressure
Tpump Vacuum pump temperature
Mpump Vacuum pump
Hpump Heating element
Mair Fresh air motor
CA function overview - two versions
Controller module SMC6
Controller module SSC6-
CA
CO2O2
Inside Container
Fresh air valveCA membrane
Vacuum pump
PTCVacuum Pump
Output
RS 485
RS 485
PTCSignals
Vacuum
PPressure sensor
Heating element
RS 485
Temperature sensor
Thermal circuit switch
Air flow
(Only available for some models)
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Operating and service manual, Controlled Atmosphere
Controller module SMC6.1
CO2O2
Inside Container
Fresh air valveCA membrane
Vacuum pump
PTCVacuum Pump
Output
RS 485
PTCSignals
Vacuum
PPressure sensor
Heating element
RS 485
Temperature sensor
Air flow
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Operating and service manual, Controlled Atmosphere
The basic principle is that the fruit will generate CO2 from O2 via respiration. This will increase the CO2 level and decrease O2 level inside the container. When the CO2 level reaches above the CO2 set point the vacuum pump will activate and evacuate CO2 with the selective membrane. In case the O2 level goes below the O2 set point the fresh air valve will open and let in ambient air (20,9% O2). This described mechanism will regulate the gas concentration within the container as illustrated below:
O2 levelCO2 level
Time
GasConcentration
Warning Due to low oxygen levels inside the container, ventilation is necessary before entering, either for repairing the unit or unloading. Stay away from doors while venting.
Container venting procedureTO BE PERFORMED WHENEVER ENTERING THE UNIT/CONTAINER IS NECESSARY
1. Press for operation and select O03 and set Air fl ow mode to “NORMAL”.2. Open fresh air module fully. AL 834 may appear.3. Wait for O2 level to reach 21% +/- 2% before entering.4. Close air module and clear AL 834.
General specifi cationAdditional components to a standard unit:
• O2 sensor• CO2 sensor• Vacuum pump• Membrane• Vacuum hose• Fresh air module incl. motor
Fresh air motorType Gear motorSupply 12-24 V DC
CO2 sensorType Nondispersive infrared sensorOperating range 0 - 20%
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Operating and service manual, Controlled Atmosphere
Accuracy CO2 (5%) +/- 0,3% CO2 (0,5%) +/-0,1%
Supply 8-15V DCOutput RS-485
O2 sensorType Ziconium OxideOperating range 0 - 21%Accuracy At O2 (3%) +/- 0,5%, temperature ranges
from -1 - 15°CSupply 8-15V DCOutput RS-485
Pressure transmitterType RatiometricOperating range -1 - 0 BarAccuracy ±10 mBarSupply 5V DCOutput Ratiometric
Temperature sensorType NTC, 10 kOhm at 25°C (77°F) 10K3A1Operating temp. -40°C to 100°C (-40°F to 212°F)Accuracy ±0.15°C, range -30°C to 100°C (±0.5°F,
-22°F to 212°F)
Vacuum pump, including heating elementCapacity 16 m3/h at 50 Hz and 19 m3/h at 60 HzSupply 3 phase AC 50 Hz 340 – 460 Volts and 60 Hz
400-520 VoltOil (type/amount) Anderol FGC 32 - 0.35 L
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Operating and service manual, Controlled Atmosphere
Menu structure
MAIN PAGE
SERVICE
S01S02S03S04S05
OPERATION
SetpointQUESTAirflow modeHumidity setpointDatalog intervalPROGRAMS >O2 setpointCO2 setpointActive application
O01O02O03O04O05O06O07O08O09
Relative humidityAir exchangeO2CO2Last defr intervalUSDA 1 tempUSDA 2 tempUSDA 3 tempCargo tempTime to defrostAmbient tempSupply air 1 tempSupply air 2 tempReturn air tempEvaporator tempSuction tempSuction pressMembrane pressureDischarge pressExpansion valveEvap superheatCompressor freqPower frequencyCurrent phase 1Current phase 2Current phase 3Voltage phase 1-2Voltage phase 2-3Voltage phase 1-3Phase directionBattery voltageFC tempCondenser fanEvaporator fanEvaporator heaterPump temperature
I01I02I03I04I05I06I07I08I09I10I11I12I13I14I15I16I17I18I19I20I21I22I23I24I25I26I27I28I29I30I31I32I33I34I35I36
INFORMATION
ALARM
Alarm text...
A01A02...A16
MANUAL OPERATION
Operating modeEvaporator heaterEvaporator fanCondenser fanCompressor freqExpansion valveHotgas valveEconomizer valveAirex motorVacuum pump
M01M02M03M04M05M06M07M08M09M10
DATALOG VIEW
Text Temperatures >Text Atmosphere >Graph Temperatures >Graph Atmosphere >
L01L02L03L04
TIME ADJUST
GMT-YearGMT-MonthGMT-DayGMT-HourGMT-Minute
C01C02C03C04C05
RUNTIME COUNTERS
UnitCompressorEvaporator fanCondenser fanEvaporator heaterAirex motor sw timesVacuum pump
R01R02R03R04R05R06R07
CONFIGURATION
ContainerSoftware versionFC typeFC IDPhase detectionAirEx calibrationLow pres typeHigh pres typeMain PCBModel code
F01F02F03F04F05F06F07F08F09F10
PRE TRIP INSPECTION
PTI testLastFunction testAbort the testTest status 10: Init 20: Controller 30: Power 40: Evap fan 50: Cond fan 60: Evap heater 70: CA 80: Compressor 90: FT status105: T set 13 °C100: T set 5 °C110: T set 0 °C111: Hold 0 °C120: T set -18 °C130: Defrost140: PTI status
T01T02T03T04T05T06T07T08T09T10T11T12T13T14T15T16T17T18T19T20T21
MANUAL OPERATION >DATALOG VIEW >TIME ADJUST >RUNTIME COUNTERS >CONFIGURATION >
AIR EXCHANGE
COLD TREATMENT
DurationMaximum USDA temp.Treatment setpointFinal temperatureCT status
B01B02B03B04B05
PROGRAMS
Active programMulti. Temp setp. >Cold treatment >
P01P02P03
MULTI. TEMP. SETP.
D01D02D03D04D05D06
Hour Set %Rh OFF 0.0 OFF OFF 0.0 OFF OFF 0.0 OFF OFF 0.0 OFF OFF 0.0 OFF OFF 0.0 OFF
888m3/hPress (X) to leave
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Operating and service manual, Controlled Atmosphere
SetpointsSetpoints are entered via the operation menu
O2 range 3 - 21% CO2 range 5 - 12%
Setting setpoint: O2 level is set in O07 and CO2 level is set in O08 (Menu structure)
CA function on/offIf the setpoints for O2 and CO2 is set to OFF the CA function is turned off
Additional menu information for CAIn addition to the standard log the following information can be viewed in the log:Please note that it will take approx. 5 minutes before CO2 and O2 can be viewed in the display.
I03 O2 level Function:
Shows the O2 level [%] Value:
An actual value of the O2 level inside the container.
I04 CO2 level Function:
Shows the CO2 level [%] Value:
An actual value of the CO2 level inside the container.
I18 Membrane pressure Function:
Membrane pressure. Value:
Actual vacuum pressure between vacuum pump and membrane. Under normal conditions: 40-100 mBar.StarView enables the display of the following additional information.
O07 O2 set point Function:
O2 set point. Value:
-
O08 CO2 level Function:
CO2 set point. Value:
-
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Operating and service manual, Controlled Atmosphere
Data log
Title Info displayed
CO2Set CO2 set point [%]
O2Set O2 set point [%]
Input CO2 CO2 level [%]
Input O2 O2 level [%]
Input Pmem Membrane pressure [mBar]
Input Tpump Oil temperature in the vacuum pump [°C]
Application CAType 0 = CA off 1 = CA on
Control MpumpCA 0 = vacuum pump off 1 = vacuum pump on
Control HpumpCA 0 = heating element off 1 = heating element on
Control MairPct (time opened [%]) 0 = fresh air valve closed 100 = fresh air valve open
WarningDo NOT enter the container, including opening the service hatches, when the oxygen level is below 20.9% (equal ambient air).
Human response to oxygen low atmosphere:Oxygen content of Air Symptoms of a person exposed20.9% Level in ambient air - no effect15% - 19% May impair coordination and may induce early symptoms
in persons who have coronary, pulmonary or circulatoryproblems.
12% - 15% Respiration and pulse increase; impaired coordination, perception and judgement occurs.
10% - 12% Respiration further increases in rate and depth; poor judgement and bluish lips occur.
8% - 10% Mental failure, fainting, unconsciousness, an ash-coloured face, blue lips, nausea and vomiting.
6% - 8% 8 minutes - 100% fatal; 4-5 minutes - recovery with treatment.4% - 6% Coma within 40 seconds, convulsions, respiration ceases - death
Pre Trip Inspection, PTIEnsure the following manual inspection and function test is performed before taking the Star Cool CA unit into operations.The progress of the pre trip test can be followed in the display T04 in steps.
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Operating and service manual, Controlled Atmosphere
Manual inspection1. Check for structural damages on sides, doors and roof on the container.2. Secure tight plugs at each of the fl oors drain plugs, placed near corners. Cut-out views from front end (left picture) and rear end (right picture)
3. Make sure service hatches are in perfect condition and installed correctly.4. Inspect the fresh air module to ensure it is in perfect condition. Make sure the butterfl y is operational and that the valves are intact.5. Check drain hose for any damage.6. Make sure lead-ins (cables and vacuum hose) are intact.7. Check oil in the vacuum pump.
After ensuring steps 1-7 the unit is now ready for PTI.Three types of pre trip inspections are available for the Star Cool CA unit: Full PTI, Short PTI and CA PTI. Please see Star Cool service manual for descriptions on Full PTI and Short PTI.
Function testTwo function tests are available for the Star Cool CA unit: STD and CA.The CA function test has the following steps: 1. STD function test2. CO2 sensor test3. O2 sensor test4. AirEx motor test
OperationSet points:CO2 and O2 set points are entered in the menu structure O07 an O08.O2 levels below 2% can not be entered.CO2 levels below 5% can not be entered.
Level readings:O2 and CO2 concentrations can be viewed in the menu structure I03 and I04. The membrane pres-sure can be viewed in the menu structure I18 - this displays the vacuum level created. Vacuum pump oil temperature can be viewed in the menu structure I36.
Manual modeThe AirEx motor can be activated in manual mode in the menu structure M09. 0%: Valve closed 100%: Valve open
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Operating and service manual, Controlled Atmosphere
The vacuum pump can be activated in the menu structure M10. Activating the vacuum pump should result in a pressure drop which can be viewed in the menu structure I18.Only manually activate the vacuum pump when absolutely necessary! The vacuum pump is not pre-heated if manually activated - this can cause damage to the vacuum pump over time.
CA curtainWhen CA is activated a CA curtain must be installed. Ensure the CA curtain is installed in accord-ance with the guide included with the CA curtain.
Vacuum system testNote: BE AWARE OF HOT SURFACES - when handling the vacuum pump.The vacuum system consists of a membrane connected with a hose to a vacuum pump. Below you will fi nd a step-by-step method to determine the root cause of a vacuum fault. Please be aware that there can be more than one problem in a vacuum system, and you might need to go through the tutorial several times to eliminate the problem.
A vacuum fault alarm can be caused by a single or a combination of the following:
1. Insuffi cient amount of oil in vacuum pump2. Defective pressure transmitter3. Defective or leakage in vacuum pump4. Leak in fi ttings or connections5. Leak in membrane
Method to determine the cause:
1. Check oil level in the vacuum pump. Refi ll if needed.2. Go to menu structure M10 and turn on the vacuum pump and verify that it rotates in the right direction. If vacuum pump does not activate, see section “Simple trouble shooting vacuum pump / controller module” on page 12. If vacuum pump acti vates proceed to 3.3. Disconnect the vacuum hose at the vacuum pump and plug the vacuum pump inlet. a. If the pressure is above 30 mBar, proceed to 4 b. A pressure below 30 mBar indicates the vacuum pump is OK, proceed with the following: Connect the hose to the vacuum pump again and ensure the connection is tight.4. Install a manometer at the transmitter inlet and ensure the reading is similar to the display reading. If not, the pressure transmitter is defect. If pressure is OK, change the vacuum pump. Go to menu structure M10 and turn on the vacuum pump.
If the vacuum fault alarm is still present - 2 options from here: If unit is in operation with cargo: Do nothing! Either the membrane or the connection to the membrane is leaking. It is not possible to correct this fault during operation, due to low oxygen level inside container. Do not enter the container - including opening the service hatches - when oxygen level is below 20.9%. Empty container: Disconnect the vacuum hose at the membrane and plug the hose. Go to menu structure M10 and turn on the vacuum pump. If readings are: - Above 30 mBar: ”Problem surrounding the vacuum hose” on page 12 - Below 30 mBar: ”Problem located at membrane” on page 12
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Operating and service manual, Controlled Atmosphere
CA membrane
P
Problem area if reading below 30 mBar
Vacuum pump
Problem area if reading above 30 mBar
Problem surrounding the vacuum hose
In case of a defective vacuum hose:1. Check hose for leaks. Repair or replace.2. After repair or replacement of the vacuum hose, perform “Container leak test” on page 12
Problem located at membrane1. Ensure vacuum hose is connected correctly.2. If this does not solve the problem, replace membrane.
Please note that this step by step only resolves one leak in the system, and may need to be repeat-ed until the leak is fully terminated. See “Container leak test” on page 12
Simple trouble shooting vacuum pump / controller module1. Check contactor coil K9.2. Measure wirering, see wire diagram.3. Measure bi-metallic switch (optional component). If no connection, replace switch.4. Pull contactor K9 manually. If pump starts, replace controller module5. Pull contactor K9 manually. If pump does not start, replace the pump.
Container leak testA container leak test needs to be performed when:• After replacing vacuum hose• After replacing wiring going through the unit• After replacing hoses and or piping going through the unit• After replacing or opening service hatch• After repairing structural damage on the unit and or container• After replacing fresh air valve and or module• When a container is suspected of leakage
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Operating and service manual, Controlled Atmosphere
Equipment needed:• Star Cool test damper• Test manometer - differential pressure gauge (for instance a Dwyer Magnehelic model 2002)• CA curtain• Drain plugs
Method:1. Install drain plugs2. Install CA curtain according to instructions supplied along with the curtain3. Install Star Cool test damper4. Connect test manometer5. Apply air pressure 500 Pa6. Close air supply, and wait 12 min7. Ensure pressure is min. 250 Pa after 12 min
Test criteria:Pressure drop: 2” water column to 1” water column (500 Pa to 250 Pa)Min. test time: 720 sec (12 min)If test fails, leak must be located, repaired and test performed over again.
Oil charge and drainOil fi lter should be replaced at every oil change.1. BE AWARE OFF HOT SURFACES.2. Remove cover shield from vacuum pump by the 4 bolts.3. Remove the plug for oil charge, see Vacuum pump in “Components” on page 15.4. Charge oil while watching the sight glass - do not overcharge.5. Fasten plug immediately after oil charge.
Replacement of vacuum pump heating element1. Turn power off!2. BE AWARE OFF HOT SURFACES.3. Remove cover shield from vacuum pump by the 4 bolts. Release vacuum pump from its socket4. Unplug sensor cables from terminal box on top of the vacuum pump and tilt vacuum pump to avoid oil spill when replacing the heating element.5. Attach cables to terminal box on top of the vacuum pump according to illustration below.6. Turn on power.
1
2
3
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Operating and service manual, Controlled Atmosphere
Locations of components
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Operating and service manual, Controlled Atmosphere
ComponentsCA membrane module
Pressure transmitter
CO2 sensor O2 sensor
Displayed sensors may vary from currently used models
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Operating and service manual, Controlled Atmosphere
Vacuum pump
Tightening torques for M6 screws at vacuum pump console: 6 NmTightening torques for plugs and heating element: 15 Nm
CA related alarmsAlarm list:Id Display text Description Alarm type1. Temperature sensor alarms130 Tpump open Vacuum pump temperature sensor open circuit Warning131 Tpump short Vacuum pump temperature sensor short circuit Warning132 Tpump invalid Vacuum pump temperature sensor invalid Warning2. Pressure sensor alarms211 Pmem open Vacuum pump pressure transmitter open circuit Warning212 Pmem short Vacuum pump pressure transmitter short circuit Warning213 Pmem invalid Vacuum pump pressure transmitter invalid Warning214 Pmem fault Pressure system fault Warning3. Other sensor alarms310 CO2 invalid CO2 sensor communication missing Alarm313 O2 invalid O2 sensor communication missing Alarm4. Power alarms403 Mpump over heat Vacuum pump motor overheat Warning6. Operations alarms650 O2 low O2 sensor measures low O2 level in container Alarm651 CO2 high CO2 sensor measures high CO2 level in container Alarm652 Vacuum fault The pressure sensor measures high pressure in
the vacuum systemAlarm
Terminal box
Pressure tranmitter connection
Pump in-let
Oil in-let
Oil fi lter
Sight glass
Temp. sensor pocket
Heating element
Oil out-let
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Operating and service manual, Controlled Atmosphere
653 Mpump temp low Vacuum pump operating temperature is low Alarm654 Mpump temp high Motor for vacuum pump is overheated Alarm656 Mpump service Vacuum pump needs oil change Fatal
alarm657 Mpump wrong phase Vacuum pump operating in wrong direction Fatal
alarm7. Communication alarms740 CO2 sensor
missingCO2 sensor is missing or communication lost Alarm
750 CA module missing CA module is missing or communication lost Alarm760 O2 sensor missing O2 sensor is missing or communication lost Alarm8. Test alarms826 Hpump current ON Heat vacuum pump too high or too low Alarm827 Hpump current OFF Current in off position is too high Alarm831 Pmem sensor Pmem above or below 1000 mBar (+50/-50) after
Mpump off for 300 secAlarm
832 CO2 sensor No reading or value above 1% Alarm833 O2 sensor No reading or value out of range Alarm834 Mair open Readings for fresh air valve position is outside
specifi ed rangeAlarm
835 Mair closed Readings for fresh air valve position is outside specifi ed range
Alarm
836 Pmem vacuum Unable to create vacuum Alarm837 Pmem ambient Not measuring Pmem pressure 1000 mBar
(-50/+50 mBar)Alarm
838 Mpump ON current Current failure Alarm839 Mpump OFF current Current in off position is too high Alarm890 PTI Tset-13 Unable to reach set point (13°C) (55°F) within 3
hours and staying in-range for 30 minAlarm
9. Controller alarms977 Pmem sens sup LOW Controller internal voltage reference fault Warning978 Pmem sens sup HIGH Controller internal voltage reference fault Warning998 Could not detect CA Unable to detect CA Warning
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Operating and service manual, Controlled Atmosphere
Replacing the controller module
SCC6-CASMC6
Defective
SSC6-CA SMC6.1
Replacement action
Or
Failure scenario
Recommended
SSC6-CASMC6
Defective
SMC6 SMC6.1Or
Recommended
SMC6
Defective
SMC6 SMC6.1Or
Recommended
SMC6.1
Defective
SMC6.1
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Operating and service manual, Controlled Atmosphere
Temperature sensor alarms (1XX)
130 Tpump open WarningDescription Vacuum pump temperature sensor open circuitCause Indication of loose connection, defective temperature sensorTrouble shooting
Possible causes:
• Temperature sensor Tpump or its cable is defective
• Controller module is defective
Accompanied alarms:
• AL 132
Trouble shooting:
1. Disconnect the sensor cable for sensor Tpump from the connector on the controller module, according to the wiring schematics inside in the control cabinet
2. Measure the resistance between the two wires
a) If this resistance is more than 1.5 MΩ, the cable or the sensor is defect, replace sensor
b) If this resistance matches the resistance and temperature in Tables (Star Cool manual), the temperature sensor and cable are OK
3. Measure the voltage over the connector for Tpump. It should be between 3.2 and 3.4 V DC
a) If the voltage is within the specifi ed range, connect sensor again.Measure the voltage over the sensor and check voltage/temperature according to Tables (Star Cool manual)
b) If the voltage is outside the above range, the controller module, is defect or other sensors may be defect and pulling the voltage down. Check other alarms and see Trouble shooting for Star Cool Main Controller (Star Cool manual) before replacing controller door
Criteria Value below low alarm limit -35°C (-31°F)
Controller action
None
Log X Alarm X Alarm light Off
Consequence It is not possible to control the heating element in the vacuum pump
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive Low limit High limit Current
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Operating and service manual, Controlled Atmosphere
131 Tpump short WarningDescription Vacuum pump temperature sensor short circuitCause Indication of short-circuited temperature sensorTrouble shooting
Possible causes:
• Temperature sensor Tpump or its cable defective
• Controller module defective
Accompanied alarms:
• AL 132
Trouble shooting:
1. Disconnect the sensor cable for sensor Tpump from the connector on the controller module, according to the wiring schematics inside in the control cabinet.
2. Measure the resistance between the two wires.
a) If the resistance is less than (<) 230 Ω, the cable or the sensor is defect, replace sensor
b) If the resistance matches the resistance and temperature in Tables (Star Cool Manual), the temperature sensor and cable are OK.
3. Measure the voltage over the connector for Tpump, it should be between 3.2 and 3.4 V DC.
a) If the voltage is inside the above range, connect sensor again.Measure the voltage over the sensor and check voltage/temperature according to Tables (Star Cool Manual).
b) If the voltage is outside the above range, the controller module is defect or other sensors may be defect and pulling the voltage down. Check other alarms and see Trouble shooting for Star Cool Main Controller (Star Cool Manual) before replacing controller door.
Criteria Value above high alarm limit +140°C (+284°F).
Controller action
None
Log X Alarm X Alarm light Off
Consequence It is not possible to control the heating element in the vacuum pump
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive Low limit High limit Current
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Operating and service manual, Controlled Atmosphere
132 Tpump invalid WarningDescription Vacuum pump temperature sensor invalidCause Indication of defective temperature sensor or its measuring circuitryTrouble shooting
Possible causes:
• Active alarms AL 130 or AL 131
• Temperature sensor reading is out of valid range: -35°C (-31°F) or above +130°C (266°F)
Accompanied alarms:
• AL 130 or AL 131 may also be active.
Trouble shooting:
1. Check accompanied alarms
2. Disconnect the sensor cable for sensor Tpump from the connector on the controller module, according to the wiring schematics inside in the control cabinet.
3. Measure the resistance between the two wires.
a) If the resistance is out of range of the resistance and temperature table in Tables (Star Cool Manual), the temperature sensor and cable are defect and should be replaced.
b) If the resistance is within range, perform controller door check Trouble shooting for Star Cool Main Controller (Star Cool Manual) before replacing controller door.
Criteria Reading below -35°C (-31°F) or above +130°C (266°F)
Controller action
None
Log X Alarm X Alarm light Off
Consequence It is not possible to control the heating element in the vacuum pump
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted. Value must be valid for 60 sec. to set alarm inactive.
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive
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Operating and service manual, Controlled Atmosphere
Pressure sensor alarms (2XX)
211 Pmem open WarningDescription Vacuum pump pressure transmitter open circuitCause Indication of loose connection, defective or lack of vacuum pump
pressure transmitterTrouble shooting
Possible causes:
• See AL 212
Accompanied alarms:
• AL 213
Trouble shooting:
1. Check that the connector is mounted correctly according to wiring schematic.
a) Check the cable (measure the resistance in the cable).If the cable is defective, replace cable.
b) Disconnect signal wire on controller module according to wiring schematic.Measure voltage between dissconnected signal wire and GND on controller module.If voltage is above 4.7 V DC, transmitter or connection between transmitter and cable is defective.If not, then mount signal wire. Measure voltage between SIGNAL and GND.If voltage is between 0.2 V DC and 4.7 V DC and this alarm is still active, then replace controller module.
Criteria Pmem > 1150 mBar
Controller action
None
Log X Alarm X Alarm light Off
Consequence No consequence as to control
Elimination When transmitter value becomes valid, it is marked as inactive in the alarm list and may then be deleted.
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive Low limit High limit Present
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Operating and service manual, Controlled Atmosphere
212 Pmem short WarningDescription Vacuum pump pressure transmitter short circuitCause Indication of short-circuited vacuum pump pressure transmitterTrouble shooting
Possible causes:
• Connector for pressure transmitter Pmem not correctly mounted
• Vacuum pump pressure transmitter Pmem defective
• Cable for vacuum pump pressure transmitter Pmem defective
• Controller module defective
Accompanied alarms:
• AL 213
Trouble shooting:
1. Check that the connector is mounted correctly according to wiring schematic.
a) Check the cable (measure the resistance in the cable).If the cable is defective, replace cable.
b) Disconnect signal wire on controller module according to wiring schematic.Measure voltage between dissconnected signal wire and GND on controller module.If voltage is below 0.2 V DC, transmitter or connection between transmitter and cable is defective.If not, then mount signal wire. Measure voltage between SIGNAL and GND.If voltage is between 0.2 V DC and 4.7 V DC and this alarm is still active, then replace controller module.
Criteria Pmem < 10 mBar
Controller action
None
Log X Alarm X Alarm light Off
Consequence None
Elimination When transmitter value becomes valid, it is marked as inactive in alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive Low limit High limit Present
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Operating and service manual, Controlled Atmosphere
213 Pmem invalid WarningDescription Vacuum pump pressure transmitter invalidCause Indication of defective Vacuum pump pressure Transmitter or its
measuring circuitryTrouble shooting
Possible causes:
• See AL 212
Accompanied alarms:
• AL 211 or AL 212 may also be active
Trouble shooting:
1. Check that the connector is mounted correctly according to the drawing.
a) Check the cable (measure the resistance in the cable).If the cable is defective, replace cable.
b) Disconnect signal wire on controller module according to wiring schematic.Measure voltage between signal wire and GND on controller module according to wiring schematic.If voltage is below 0.2 V DC, transmitter or connection between transmitter and cable is defective.If not, then mount signal wire. Measure voltage between SIGNAL and GNDIf voltage is between 0.2 V DC and 4.7 V DC and this alarm is still active, then replace controller module.
Criteria Pmem out of range for more than 30 sec
Controller action
Replacement by new value from AAS system
Log X Alarm X Alarm light Off
Consequence None
Elimination When transmitter value becomes valid, it becomes marked as inactive in alarm list may then be detected. Value must be valid for 60 sec. to set alarm inactive.
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive
25
Operating and service manual, Controlled Atmosphere
214 Pmem fault WarningDescription Pressure system faultCause Pressure <10 mBar or >1150 mBarTrouble shooting
Possible causes:
• See AL 212
Accompanied alarms:
• AL 213 may be active
Trouble shooting:
1. See AL 212Criteria 10 mBar or > Pmem > 1150 mBar
Controller action
None
Log X Alarm X Alarm light Off
Consequence None
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive Low limit High limit Act 0
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Operating and service manual, Controlled Atmosphere
Other sensor alarms (3XX)
310 CO2 invalid AlarmDescription CO2 sensor communication missingCause Indication of defective CO2 sensor, or lack of or improper connectionTrouble shooting
Possible causes:
• Communication with CO2 sensor
• Defective CO2 sensor
• COMRH cable, RH-cable and or COMCA cable is defective
• Controller module is defective
Accompanied alarms:
• AL 740
Trouble shooting:
1. Verify that cable CO2-com is mounted correctly (and is not damaged) according to wiring diagram inside the controller cabinet.
2. Verify that there are correct voltages 12 V DC between 1 and 4 on X10.
3. Measure with a multimeter that there is a small DC signal between 2 and 3 on X10.
a) If there is signal: The CO2 sensor is defective and must be replaced.
b) If there is no signal: The controller module is defective and must be replaced.
Criteria Communication with CO2 sensor not possible
Controller action
Run pump 40%
Log X Alarm X Alarm light Slow fl ash
Consequence CO2 level can not be regulated
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive
27
Operating and service manual, Controlled Atmosphere
313 O2 invalid AlarmDescription O2 sensor communication missingCause Indication of defective O2 sensor, or lack of or improper connectionTrouble shooting
Possible causes:
• Communication with O2 sensor
• COMRH cable, RH-cable and or COMCA cable is defective
• Defective O2 sensor
• Controller module is defective
Accompanied alarms:
• AL 310, AL 302 and or AL 760, (See service manual).
Trouble shooting:
1. Verify that cable O2-com is mounted correctly (and is not damaged) according to wiring diagram inside the controller cabinet.
2. Verify that plugs are properly connected.
3. Verify that there are correct voltages 12 V DC between 1 and 4 on X10.
a) If there is signal: The O2 sensor is defective and must be replaced.
b) If there is no signal: The controller module is defective and must be replaced.
Criteria Communication with O2 sensor not possible
Controller action
Open airex 4%
Log X Alarm X Alarm light Slow fl ash
Consequence O2 level can not be regulated
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive
28
Operating and service manual, Controlled Atmosphere
Power alarms (4XX)
403 Mpump over heat WarningDescription Vacuum pump motor overheatCause Indication of an overheated motor or a loose thermistor cable connectionTrouble shooting
Possible causes:
• Vacuum pump motor defective.
• Cable for measuring vacuum pump motor overheat defect.
• Controller module defective.
Accompanied alarms:
• N/A.
Trouble shooting:
1. Turn off unit!Take of the fan cover for the vacuum pump, see if the fan can easily turn freely by fi nger. If not, perform oil check. See trouble shooting AL 656. If the motor is hot, it may be overloaded and jammed or defect.
2. If the cable for MpumpOH by inspection is defect, replace cable.
3. Disconnect the cable for MpumpOH from the controller module according to the wiring schematics.
4. Measure the resistance in the cable.If the resistance is more than 1 MΩ, the cable or the motor is defect and should be replaced.If the resistance is less than (<) 5 kΩ, the cable and motor should be OK.
5. Turn unit on again.Measure the voltage over the connector for MpumpOH. It should be between 4.80 V DC and 5.05 V DC.
a) If the voltage is inside the above range, connect sensor again.Measure the voltage over the sensor and check the voltage.If the voltage is less than (<) 2.5 V DC, the measurement is OK.If the alarm after 30 sec. is still active on the display, thecontroller module is defect - replace controller module.
b) If the voltage is outside the range, controller module is defect or another error might affect the voltage. Check other alarms before replacing controller module.
Criteria Value above high alarm limit 10k Ohm
Controller action
Vacuum pump is stopped until alarm is removed
Log X Alarm X Alarm light Off
Consequence Extraction of CO2 is stopped
Elimination When overheating stops, alarm will be marked as inactive in alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive High limit Present
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Operating and service manual, Controlled Atmosphere
Operation alarms (6XX)
650 O2 low AlarmDescription O2 sensor measures low O2 level in containerCause The system is not able to vent fresh air into the containerTrouble shooting
Possible causes:
• Lack of oil in the vacuum pump
• Automatic Fresh air defect
• O2 sensor defect
Trouble shooting:
1. See if automatic Air Exchange valves are open. If not, try to open in manual mode
2. See if vacuum pump is running.
a) If the pump is running it will in time make sure there is enough O2 in the box. Open the damper to accelerate this, open it until O2 level is higher than O2 set point.
Criteria O2 level < O2 set point – 0.3 * O2 set point
Controller action
Run pump 40%
Log X Alarm X Alarm light X
Consequence If not fl ushed with O2 cargo might experience anaerobic respiration and thereby deteriorate
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Limit Act Set point
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Operating and service manual, Controlled Atmosphere
651 CO2 high AlarmDescription CO2 sensor measures high CO2 level in containerCause The system is not able to extract the CO2 through the membraneTrouble shooting
Possible causes:
• Lack of oil in the vacuum pump
• Vacuum pump is not running or defective
• Membrane is defective
• CO2 sensor defective
Trouble shooting:
1. The vacuum pump is not running.
a) Check if the bi-metallic switch is connected according to the wire schematic X78 (depending on model).
b) Push the contactor in the control cabinet, if the pump is then activated replace controller module. If the pump is not running when pushing the contactor, replace vacuum pump.
2. The vacuum pump is running.
a) Check oil level in vacuum pump.
b) Read out the pump pressure I18 if > 200 mbar the vacuum system has a leak. Check entire system for air leaks. If no air leaks is found the pump might be defect. See ”Vacuum system test” on page 11
b) Read out the pump pressure I18 if < 200 mBar the membrane is defect. Replace membrane.
Criteria CO2 level > CO2 set point + 0.5 * CO2 set point (and rising)
Controller action
Run pump 100%
Log X Alarm X Alarm light X
Consequence If not CO2 is removed from the container, this will cause damage to the cargo
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Limit Act Set point
31
Operating and service manual, Controlled Atmosphere
652 Vacuum fault AlarmDescription Vacuum pump unable to reach required pressureCause The vacuum system might have a leak or the pressure sensor is defectTrouble shooting
Possible causes:
• Lack of oil
• Leak in vacuum system or membrane
• Defective pressure sensor
• Vacuum pump is defective
Accompanied alarms:
• AL 403
Trouble shooting:
1. If AL 403 is active, see trouble shooting for AL 403.If AL 652 does not turn inactive, proceed with 2.
2. The vacuum pump is not running.
a) Check if the bi-metallic switch is connected according to the wire schematic X78 (depending on model)
b) Pushing the contactor in the control cabinet, if the pump is then activated replace controller module. If the pump is not running when pushing the contactor, check contactor and vacuum pump.
3. The vacuum pump is running.
a) Perform “Vacuum system test” on page 11Criteria Pump on > 5 min AND Pmem > 135 mBar in 15 min, and CO2act > CO2set + 2%
Controller action
None
Log X Alarm X Alarm light X
Consequence If the system can not achieve low pressure, the membrane does not work and therefore not able to extract CO2 from the container
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log data
Parm 1 Parm 2 Parm 3 Parm 4 Parm 5
Limit Act Pump on time
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Operating and service manual, Controlled Atmosphere
653 Mpump heat element AlarmDescription Vacuum pump operating temperature is lowCause The ambient temperature can be low and thereby diffi cult for the heating
element and vacuum pump to heat up. It could also be a defective heating element
Trouble shooting
Possible causes:
• Defective temperature sensor Tpump
• Defective heating element
• Defective contactor K9
Trouble shooting:
1. Check contactor
2. Ensure that Tpump is correctly mounted and inserted completely in the sensor pocket.
3. Defective heating element.
a) At the contactor measure the heating element, there should be approx 0.9 kΩ. If not replace heating element.
Criteria Heating pump on for 50 minutes; Tpump < Tamb + 5°C
Controller action
None
Log X Alarm X Alarm light X
Consequence Condensation of water vapor in the pump housing
Elimination When sensor value becomes valid, it is marked as inactive in the alarm list and may then be deleted
Log data
Parm 1 Parm 2 Parm 3 Parm 4 Parm 5
Limit Act Pump on time
33
Operating and service manual, Controlled Atmosphere
654 Mpump temp high AlarmDescription Motor for vacuum pump is overheatedCause Indication of an overheated motor, this can be caused by very high
ambient temperature or a defective pumpTrouble shooting
Possible causes:
• Vacuum pump motor is overheated
• Vacuum pump is defective or jammed
Accompanied alarms:
• N/A
Trouble shooting:
1. Check if the fan for the vacuum pump can turn freely.If it cannot turn, remove any obstacle
2. Check that the vacuum housing is not blocked.
3. Check that the oil level in the pump is correct.
4. Check that heating element is turned off, and check heater contactor.
5. Check that the temperature sensor Tpump is installed correctly.
6. If none of the above solves the problem, and the pump seems to be more than 115°C (239°F) - replace vacuum pump.
Criteria Tpump > 115°C (239°F)
Controller action
Stop vacuum pump
Log X Alarm X Alarm light Off
Consequence The CA system will not be able to remove CO2 from the container
Elimination AL 654 will become invalid when temperature decreases
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive High limit Act
34
Operating and service manual, Controlled Atmosphere
656 Mpump service Fatal alarm
Description Vacuum pump needs oil changeCause Pump runtime > 2000 hTrouble shooting
Possible causes:
• Pump runtime > 2000 h
Accompanied alarms:
• None
Trouble shooting:
1. Replace vacuum pump oil and fi lter. Filling 0.35 L.
2. Run vacuum pump in 6 min. (manually).
3. Check if oil is clean - if not, replace oil again and go to 2).
4. When oil is still clean after running in 6 minutes, press the alarm for 10 sec, then the alarm will become inactive.
5. Press again to delete service alarm.Criteria Pump runtime > 2000 h
Controller action
None
Log X Alarm X Alarm light Quick
Consequence Unit can not pass PTI.Not performing oil-change every 2000 pump hours will decrease pump-lifetime dramatically
Elimination When alarm becomes inactive, it can be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Limit Act
35
Operating and service manual, Controlled Atmosphere
657 Mpump wrong phase Fatal alarm
Description Vacuum pump operating in wrong directionCause Pump ON > 7 sec and Pmem > 600 mBarTrouble shooting
Possible causes:
• Wrong phase direction
• Pressure tansmitter defective
• Vacuum hose leak
• Leaks in the vacuum system
• Contactor defective
• Supply voltage to pump defective
Accompanied alarms:
• AL 213, AL 214 and AL 998
Trouble shooting:
1. Check contactor K10
2. Check pump connection according to wire schematic
3. See “Vacuum system test” on page 11
4. Check pressure transmitter PmemCriteria Pump ON > 7 sec and Pmem > 600 mBar
Controller action
None
Log X Alarm X Alarm light Quick
Consequence Vacuum pump stop and CA non functionable
Elimination When alarm becomes inactive, it can be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Limit Act Pump ontime
CO2
36
Operating and service manual, Controlled Atmosphere
Communication alarms (7XX)
740 CO2 sensor missing AlarmDescription CO2 sensor is missing or communication lostCause None or bad communication with CO2 sensorTrouble shooting
Possible causes:
• Communication to CO2 sensor lost
• CO2 sensor missing
• CO2 sensor defect
• COMRH cable, RH-cable and or COMCA are defective
• Main controller defective
Accompanied alarms:
• AL 302, AL 730, AL 750, AL 751 and AL 760 may accompany this alarm
Trouble shooting:
1. Verify that cable CO2-com is mounted correctly (and is not damaged) according to wiring diagram inside the controller cabinet.
2. Verify that there are correct voltages 12 V DC between 1 and 4 on X10.
3. Measure with a multimeter that there is a small DC signal between 2 and 3 on X10.
a) If there is signal: The CO2 sensor is defective and must be replaced.
b) If there is no signal: The controller module is defective and must be replaced.
Criteria No communication for 2 min.
Controller action
None
Log X Alarm X Alarm light X
Consequence Not possible to run CA
Elimination Alarm may be deleted when inactive
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
0 0 0 Err code
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Operating and service manual, Controlled Atmosphere
750 CA module missing AlarmDescription CA module is missing or communication is missingCause CA module sensor is missing or communication lostTrouble shooting
Possible causes:
• CA module missing
• Communication to CA module lost
• CA module defective
Accompanied alarms:
• AL 302, AL 730, AL 740 and AL 760 may accompany this alarm
Trouble shooting:
1. If one or more alarms are active, check wires, plugs and connectors.
2. Check voltage supply according to wire schematic.
3. If only AL 750 active, then check connection to CA module and correct if faulty. If no change, then replace CA module.
Criteria No communication for 2 min.
Controller action
None
Log X Alarm X Alarm light X
Consequence Not possible to run CA
Elimination
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
0 0 0 Err code
38
Operating and service manual, Controlled Atmosphere
760 O2 sensor missing AlarmDescription O2 sensor is missing or communication lostCause None or faulty communication with O2 sensorTrouble shooting
Possible causes:
• Communication to O2 sensor missing
• Defective O2 sensor
• COMRH cable, RH-cable and or COMCA cable is defective
• Controller module defective
Accompanied alarms:
• AL 313, AL 730 and AL 740 may also be active
Trouble shooting:
1. If one or more alarms are active, check wires, plugs and connectors.
2. Check voltage according to wire diagram.
3. If only AL 760 active, then check connection to O2 sensor and correct if faulty. If no change, then replace CA module.
Criteria No communication for 2 min.
Controller action
None
Log X Alarm X Alarm light X
Consequence Not possible to run CA
Elimination Alarm may be deleted when inactive
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
0 0 0 Err code
39
Operating and service manual, Controlled Atmosphere
Test alarms (8XX)
826 Hpump current ON AlarmDescription Heat vacuum pump too high or too lowCause Measured current is too high or too low when heater is turned onTrouble shooting
Possible causes:
• Defective cables
• Defective heating element
• Defective controller module
• Defective power meas
Accompanied alarms:
• N/A
Trouble shooting:
1. Check connection according to wiring schematic.
2. Defective heating element, see AL 653.
3. Check supply [Amp] reading and compare with display reading.If reading approx. 10 times normal value, replace controller module
Criteria Current < Imin = 0,5*(U/973,2) or current > Imax = 1,5*(U/973,2).
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID ILimit I1 I2 I3
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Operating and service manual, Controlled Atmosphere
827 Hpump current OFF AlarmDescription Current in off position is too highCause Measured current is too high when heater is turned offTrouble shooting
Possible causes:
• Mheat controller defective
• Defective controller module
• Defective contactor
Accompanied alarms:
• AL 800, AL 812, AL 817, AL 821 and AL 828 may also be active.
Trouble shooting:
1. If no accompanied alarms, check contactor K10.Criteria 0.5 Amp if off
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID I limit I1 I2 I3
831 Pmem sensor AlarmDescription Pmem above or below 1000 mBar (+50/-50) after Mpump off for 300 secCause Measure or hardware errorTrouble shooting
Possible causes:
• Pmem defective
Accompanied alarms:
• AL 211, AL 212, and AL 213 may also be active
• AL 214
Trouble shooting:
1. See trouble shooting for accompanied alarms AL 211 and AL 212Criteria Reading out of range. 950 mBar < normal < 1050 mBar
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Airex motor Pmem CO2 O2
41
Operating and service manual, Controlled Atmosphere
832 CO2 sensor AlarmDescription No reading or value above 1%Cause No communication or defective cable or sensorTrouble shooting
Possible causes:
• See AL 740
Accompanied alarms:
• AL 740
Trouble shooting:
1. See trouble shooting for AL 740.Criteria Reading out of range. Normal range 0-1% CO2
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Airex motor Pmem CO2 O2
833 O2 sensor AlarmDescription No reading or value is out of rangeCause No communication or defective cable or sensorTrouble shooting
Possible causes:
• See AL 760
Accompanied alarms:
• AL 760
Trouble shooting:
1. See trouble shooting for AL 760.Criteria Reading out of range. Normal 19-22 % O2
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Airex motor Pmem CO2 O2
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Operating and service manual, Controlled Atmosphere
834 Mair open AlarmDescription Readings for fresh air valve position is outside specifi ed rangeCause Current too highTrouble shooting
Possible causes:
• Damaged or blocked airex module
Trouble shooting:
1. Check fresh air module and valves for damages.
2. If valves are open, check connections according to wiring schematic.
3. Disconnect SIGNAL wire at X23 and measure voltage between GND and disconnected SIGNAL wire. If below 1.15 V DC replace controller.
4. Mount SIGNAL wire and test Mair in manual mode, open/close.The value measured should be above 4.15 V DC when closed and below 1.15 V DC when open. If not, replace controller.
Criteria Motor potentiometer open 10 - 35 %
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Airex motor Pmem CO2 O2
835 Mair closed AlarmDescription Readings for fresh air valve position is outside specifi ed rangeCause Current too highTrouble shooting
Possible causes:
• Damaged or blocked airex module
Trouble shooting:
1. Check fresh air module and valves for damages.
2. If valves are open, check connections according to wiring schematic.
3. Disconnect SIGNAL wire at X23 and measure voltage between GND and disconnected SIGNAL wire. If above 4.15 V DC replace controller.
4. Mount SIGNAL wire and test Mair in manual mode, open/close.The value measured should be above 4.15 V DC when closed and below 1.15 V DC when open. If not, replace controller.
Criteria Motor potentiometer closed 70 - 95 %
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Airex motor Pmem CO2 O2
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Operating and service manual, Controlled Atmosphere
836 Pmem vacuum AlarmDescription Unable to create vacuumCause Leakage or low performance vacuum pumpTrouble shooting
Possible causes:
• Lack of oil in the vacuum pump
• Pump not running
• Leakage involving membrane, hose and or connections
• Low performance from vacuum pump
Accompanied alarms:
• AL 403, AL 652, AL 654, AL 656 and or AL 838
Trouble shooting:
1. Check if pump is running, if not, see accompanied alarms for trouble shooting fi rst.
2. The vacuum pump is not running.
a) Check if the bi-metallic switch is connected according to the wire schematic X78 (depending on model)
b) Pushing the contactor in the control cabinet, if the pump is then activated replace controller module. If the pump is not running when pushing the contactor, check contactor and vacuum pump.
3. The vacuum pump is running.
a) Perform “Vacuum system test” on page 11Criteria Unable to reach 20 mBar < Pmem < 130 mBar
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Tpump Pmem CO2 O2
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Operating and service manual, Controlled Atmosphere
837 Pmem ambient AlarmDescription Not measuring Pmem pressure 1000 mBar (-50/+50 mBar)Cause Actual pressure measurement out of rangeTrouble shooting
Possible causes:
• Pmem defective
Accompanied alarms:
• AL 211, AL 212 and or AL 213
Trouble shooting:
1. See trouble shooting for accompanied alarms.Criteria Unable to reach Pmem. 950 mBar < Pmem < 1050 mBar
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Tpump Pmem CO2 O2
838 Mpump ON current AlarmDescription Current failureCause Uses less or more current than specifi edTrouble shooting
Possible causes:
• Bad power connection or supply
• Jammed or damaged vacuum pump
• Low performance from vacuum pump due to lack of oil
Accompanied alarms:
• AL 654, AL 656 and or AL 836
Trouble shooting:
1. Check oil level.
2. Run pump manually and observe current.If current outside range 0.9 - 1.3 Amp, replace vacuum pump.
Criteria Vacuum pump current is outside its limit 0.9 - 1.3 Amp
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Ilimit I1 I2 I3
45
Operating and service manual, Controlled Atmosphere
839 Mpump OFF current AlarmDescription Current in off position is too highCause Measured current is too high when vacuum pump is turned offTrouble shooting
Possible causes:
• Mpump contactor K9 defective
• Defective controller module.
Accompanied alarms:
• AL 800, AL 812, AL 817, AL 821 and AL 828 may also be active
Trouble shooting:
1. If no accompanied alarms, check contactor K9. If K9 is defective, replace.
Criteria Less than 0.5 Amp
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass PTI
Elimination Alarm may be deleted after test complete
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Step ID Ilimit I1 I2 I3
46
Operating and service manual, Controlled Atmosphere
890 PTI Tset 13 AlarmDescription PTI 13°C Set FaultCause Indication of insuffi cient performanceTrouble shooting
Possible causes:
• Doors are open.
• There may not be enough refrigerant in the unit.
• The heaters do not operate correctly.
Accompanied alarms:
• N/A.
Trouble shooting:
1) Verify that the doors are closed.
2) If start temperature was below +5°C, the heaters may be defective.Start the heaters in manual mode and see if the current consumption is higher than 5 A each phase.
3) The unit may be lacking refrigerant. Check if the small red balls in the sight glass in the receiver (receiver tank) are not at the bottom when the unit is turned off.Search for leaks, repair and charge the unit.
Criteria Set-point +13°C was not reached within the 3 hour limit
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Test failed
Elimination Alarm may then be deleted after test completed
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Active/Inactive Tset Tact Tevap Tret
47
Operating and service manual, Controlled Atmosphere
Controller alarms (9XX)
977 Pmem sens sup LOW WarningDescription Controller Internal Voltage Reference FaultCause Sensor voltage supply < 4.50 VTrouble shooting
Possible causes:
• Controller defective
Accompanied alarms:
• AL 211, AL 212, AL 213 and or AL 214
Trouble shooting:
1) See Trouble shooting for accompanied alarmsCriteria Voltage < 4.50 V DC
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Less accurate readings from measurement
Elimination Alarm will be marked as inactive in alarm list when supply voltage is correct. Alarm may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Low High Act 0
48
Operating and service manual, Controlled Atmosphere
978 Pmem sens sup HIGH WarningDescription Controller Internal Voltage Reference FaultCause Sensor voltage supply > 5.50 VTrouble shooting
Possible causes:
• Defective power supply for main controller
• Defective Pmem pressure transmitter
• Defective main controller
Accompanied alarms:
• AL 213 and or AL 214
Trouble shooting:
1) See Trouble shooting for accompanied alarmsCriteria Voltage > 5.50 V DC
Controller action
None
Log X Alarm X Alarm light Slow fl ash
Consequence Less accurate readings from measurement
Elimination Alarm will be marked as inactive in alarm list when supply voltage is correct. Alarm may then be deleted
Log dataParm 1 Parm 2 Parm 3 Parm 4 Parm 5
Low High Act 0
998 Could not detect CA WarningDescription Uanble to detect CACause Broken communicationTrouble shooting
Possible causes:
• COMCA cable defective (for some models)
• Heating element defective
• Contactors defective K10
• Controler module defective
Accompanied alarms:
• AL 653, AL 740 and or AL 760
Trouble shooting:
1) Check connections according to wire schematic
2) Turn unit off on
3) See Trouble shooting for AL 653Criteria Could not detect CA module in time
Controller action
Cannot run CA mode
Log X Alarm X Alarm light Slow fl ash
Consequence Can not pass CA PTI
Elimination Alarm may be deleted after test complete
Log data
Parm 1 Parm 2 Parm 3 Parm 4 Parm 5
CA mode CA communi-cation
Idle currentsum
Hpump on current sum
49
Operating and service manual, Controlled Atmosphere
Controller overview
Displayed overview may vary depending on model
50
Operating and service manual, Controlled Atmosphere
TablesVcc = 5VVoltage [V] Pressure [Bar] Pressure [PsiA] Voltage [V] Pressure [Bar] Pressure [PsiA]0* 0.009 0.13 2.55 0.598 8.67
0.05* 0.021 0.30 2.6 0.610 8.84
0.1* 0.032 0.47 2.65 0.621 9.01
0.15* 0.044 0.63 2.7 0.633 9.18
0.2* 0.055 0.80 2.75 0.644 9.34
0.25* 0.067 0.97 2.8 0.656 9.51
0.3* 0.078 1.14 2.85 0.667 9.68
0.35* 0.090 1.30 2.9 0.679 9.85
0.4* 0.101 1.47 2.95 0.690 10.01
0.45* 0.113 1.64 3 0.702 10.18
0.5 0.125 1.81 3.05 0.714 10.35
0.55 0.136 1.97 3.1 0.725 10.52
0.6 0.148 2.14 3.15 0.737 10.68
0.65 0.159 2.31 3.2 0.748 10.85
0.7 0.171 2.48 3.25 0.760 11.02
0.75 0.182 2.64 3.3 0.771 11.19
0.8 0.194 2.81 3.35 0.783 11.35
0.85 0.205 2.98 3.4 0.794 11.52
0.9 0.217 3.15 3.45 0.806 11.69
0.95 0.228 3.31 3.5 0.818 11.86
1 0.240 3.48 3.55 0.829 12.02
1.05 0.252 3.65 3.6 0.841 12.19
1.1 0.263 3.82 3.65 0.852 12.36
1.15 0.275 3.98 3.7 0.864 12.53
1.2 0.286 4.15 3.75 0.875 12.69
1.25 0.298 4.32 3.8 0.887 12.86
1.3 0.309 4.49 3.85 0.898 13.03
1.35 0.321 4.65 3.9 0.910 13.20
1.4 0.332 4.82 3.95 0.921 13.36
1.45 0.344 4.99 4 0.933 13.53
1.5 0.356 5.16 4.05 0.945 13.70
1.55 0.367 5.32 4.1 0.956 13.87
1.6 0.379 5.49 4.15 0.968 14.03
1.65 0.390 5.66 4.2 0.979 14.20
1.7 0.402 5.83 4.25 0.991 14.37
1.75 0.413 5.99 4.3 1.002 14.54
1.8 0.425 6.16 4.35 1.014 14.70
1.85 0.436 6.33 4.4 1.025 14.87
1.9 0.448 6.50 4.45 1.037 15.04
1.95 0.459 6.66 4.5 1.049 15.21
2 0.471 6.83 4.55* 1.060 15.37
2.05 0.483 7.00 4.6* 1.072 15.54
2.1 0.494 7.17 4.65* 1.083 15.71
2.15 0.506 7.33 4.7* 1.095 15.88
2.2 0.517 7.50 4.75* 1.106 16.04
2.25 0.529 7.67 4.8* 1.118 16.21
2.3 0.540 7.84 4.85* 1.129 16.38
2.35 0.552 8.00 4.9* 1.141 16.55
2.4 0.563 8.17 4.95* 1.152 16.71
2.45 0.575 8.34 5* 1.164 16.88
2.5 0.587 8.51
* Range with non-reliable readings
51
Operating and service manual, Controlled Atmosphere
52
Operating and service manual, Controlled Atmosphere
Overall wiring schematic
SC
C6
-CA
8
85
15
60
20
1
P/N
: 5
25
156
18
00
Re
v:
1.2
0
Lo
da
m e
lectr
on
ics a
/s
Ove
rall
Wirin
g S
ch
em
atic
Tre
tT
ret
K8 -
C
CW
K7 -
M
evap
Hi
CO
2
SE
N-
SO
R
AW
G 1
4
K9
4 5 6M
oto
rPo
s5
GN
D
K10
B A
TR
3S
GN
D
PW
R
TR
4
GN
D
PW
R
GN
D
SIG
NA
L
L1
L2
L3
SPM6POWERMEASMODULE
sw
itch
L1
L2
L3
Outs
ide C
ontr
olle
r B
ox
X16
3 2 1[B
lack]
1
[Re
d]
X3
3 5
He
vap
6-5
B
He
vap
5-5
A
23
4
3
1
2
3
4
GN
D
SIG
NA
L
3 1
2
GN
D
PW
R
1
4 1
2
44 3 12
Vhg
GN
D
Vexp
Veco
RX
-TX
CO
MR
H
+5V
0,4
A
7 8
RX
D
652
Mco
nd
- 7
Mco
nd
- 8
Y/G
R
56 2
X25
431
4 3 1
56 24 3 1
Me
vap
1 -
7M
evap
1 -
8
CL
1
CL
2
2 1
CL
3
2 1
B A
GN
D
1
2 1
12V
GN
D
X76 n
.c.
RM
M 2
4V
AC
RM
M 0
VA
CX
50 (
J5)
Mp
um
p -
7
3
Mp
um
p -
8
2
CO
MR
H
24V
AC
0V
AC
X51 (
J3)
5
RH
S
EN
-S
OR
7 6 24 3
RX
1
TX
GN
DRMM - YorkPowerline modem
Y/G
R
X6
3
X52 (
J1)
21G
ND
X7
GN
D
RX
TX
1(G
ND
)
RM
M-c
om
GN
D
TX
RX
GN
D
SIG
NA
L
GN
D
PW
R
L1
L2
SIG
NA
L
GN
D
FC
-com
L3
X26
Me
vap
2 -
7
Me
vap
1 -
8
Me
vap
1 -
7
LM
Carg
o
Me
vap
2 -
8
538
TX
7 4
GN
D
1 2
RX
2 3
GN
D
PW
R
US
DA
2
US
DA
3
Ca
rgo
US
DA
1
GN
D
SIG
NA
L
23 1
2
GN
D
PW
R
3 1
654
V V V
Vexp
Vhg
Veco
B A
Outs
ide C
ontr
oller
Box
Insid
e C
on
troller
Bo
x
2 1B
Outs
ide C
ontr
oller
Box
A
Insid
e C
on
troller
Bo
x
Inside Controller Box
Outside Controller Box
56 24 3 1
56 24 3 1
2 1
2 1
AWG 14
2 1
AWG 16 AWG 16
7 8
2 1
5
6
2
AWG 14
1
5
4
2
3
Y/G
R
6
431
K8
X1
Blu
e o
r G
rey
Me
vap
2 -
7M
evap
2 -
8
CL
3
CL
1
CL
2
CL
3
7
TR3S
4
x2
.5m
m2
[Re
d]
CL
2
CL
1
[White
]
[Re
d]
TR
4
TR
5
K2
TR
3
[Red]
[Re
d]
12V
5
6
GN
D /B A
K3
3
2 4
GN
D
12V
9
RS
23
2R
etr
iever
plu
g in
conta
ine
r
51
/B A
10 8
12V
GN
D
QS
1
GN
D
DD
P
X13
23 1M
1
X21
2 3
V W Z
X12
+5V
X Y
B
U
A
Mcp
r
L1
L2
L3
SIG
NA
L
GN
D
42
L1
L2
L3
5
4x
AW
G12
3
X100
1
6
Tra
fo
FC
-PW
R1 2
T1
3
1 2 3
4
CL
1
CL
2
CL
3
Insid
e C
on
troller
Box
Outs
ide
Co
ntr
olle
r B
ox
A
F1
B
GN
D
2
SIG 5V
X24
L1
2
L3
L2
GN
D
4
SIG
NA
L
GN
D
1
23
1
TR
AF
O T
1A
pp
rox v
olta
ge
sT
erm
ina
l 1-2
: 4
40V
AC
Te
rmin
al 3-4
: 2
7V
AC
Te
rmin
al 5-6
: 2
4V
AC
1 2
GN
D
1
2
3
PW
R
3 1
1
[Red]
7 8
Y/G
R
3
TR
2
TR
1
6
3
2
Outside Controller Box
Inside Controller Box4
51
Y/G
RY
/GR
Bla
ck
21
Bro
wn
Y/G
R3
Overc
urr
en
tan
d M
ain
sw
itch
1 2
PO
WE
R I
N
K1
6
342
51
FC
GN
D
PW
R
3 2 1
PW
R
B A
2 1B A
1
0,4
A
X14
/ON
GN
D
2 1
2 11 2
K5
5 267
M
34 19 810
Mevap
2
Mco
nd
6
3
2 4
51
9x
AW
G1
8
6
FC
-com
LM
Fro
nt
5
GN
D
TX
D
87
Shp
-2
3 41 2 Y/G
R
X15
Shp
-1
Inside Controller Box
Outside Controller Box
DD
M
VB
US
On
/Off
+
3
BT
1
M
12V
NiM
HR
echa
rgea
ble
batt
ery
GN
D
/B
SIG
NA
L
GN
D
H
L1
Pdis
Mp
um
p
L2
L3
Psuc
Hp
um
p
X41
X40
X78
[Blu
e]
K9
[Blu
e]
K1
0
K-G
ND
+5V
GN
D
SIG
NA
L
K10
-
Mhea
t
K9 -
M
pum
p
1 42
A2
3
A1
A1
A2
24 3 1
GN
D
GN
D
SIG
NA
L
24 3
1
1
38
28
Y/G
R
27
37
K7B
Outside Controller Box
Inside Controller Box
GN
D
PW
R
K6
K7
Outside Controller Box
Inside Controller Box
6
5
5
8 37
[Y/G
R]
41
[Y/G
R]
CO
MC
A
4
2
33
Air
2
Air
Ex
1
4
TR4
2
1
5
2R
H
Y/G
R
43
4
1
65 8
2 1
3 741 2
RS
23
2R
etr
iever
plu
g insid
eC
trl B
ox
234 1
234
CL
1
CL
2
1
9x
AW
G1
8
B
X71
1 2
A
RX
TX
2
X72
GN
D
1B A
4 5 6
CL
3
1 32
A2
A1
CO
M
CL
1
CL
2
CL
3
GN
D
X10
TX
D
RX
D
Mco
nd
Me
vap
1
6
3
2
Me
vap
2
4
51
X11
C B
X77
12V
AD
AB
L3
GN
D
L2
L1
ON
12
V
GN
D
28
GN
D AB
Mco
nd
- 7
GN
D
SIG
NA
L
X2
27
Pm
em
X27
PP
me
m
Mco
nd
- 8
K4
37
38
GN
D
SIG
5V
X4
K5B
1
X17
K4
K5
X79
K6
A1
SIG
NA
L
GN
D
A2
A1
A2
GN
D
SIG
NA
L
GN
D
PW
R
X74
A2
Outs
ide C
ontr
olle
r B
ox
A1
Insid
e C
on
troller
Box
K-G
ND
LM
Carg
o
[Blu
e]
[Blu
e]
[Blu
e]
K4 -
M
co
nd
Lo
K6 -
M
evap
Lo
K5 -
M
co
nd
Hi
X75
CO
M
12V
X73
AB GN
D
Mevap
1
32
/B
1 65
A
6
4 7
3
2 4
X70
51
X0
O2
SE
N-
SO
R
GN
D
SIG
NA
L
24 3 1
LM
Fro
nt
L3
L1
L2
M
Air
Moto
r
AC
-IN
AC
-IN
AR
XD
Y/G
R
234 1
234 1
6
3
2
Mp
um
p
4
51
A2
A1
Inside Controller Box
K-G
ND
Outside Controller Box
Hig
h p
ressure
sw
itch
(Norm
ally c
losed
)
12V
GN
D
E
A B
1 32
Tsup
1
Tsup
2
Te
vap
Tsuc
Ta
mb
Mo
torP
os
Air
Ex
CO
MC
A
SMC6MAIN CONTROLLER
GN
D
SIG
NA
L
SIG
NA
L
GN
D
2 1
SIG
NA
L
SIG
NA
L
6
3
2 4
51
He
vap
6-6
B
He
vap
5-6
A
/ON
GN
D
CO
M
SUP6USERPANEL
KE
YP
AD
Insid
e C
on
troller
Box
Co
ntr
olle
r H
atc
h
Insid
e C
on
troller
Box
12
V
X80
10
KE
YP
AD
TR
4
TR
3S
[Blu
e]
K1
[Blu
e]
K2
GN
D
[Blu
e]
K3
A/B
12V
24
CL
1
CL
2
3
/ON
1
CL
3
5
12
V
ABGN
D
ON
K-G
ND
Co
ntr
olle
r H
atc
h
K3 -
H
evap
K2 -
C
W
K1 -
F
C
1 2 3 GN
D
SIG
5V
GN
D
TR
4
TR
3S
GN
D
P P
6
K-G
ND
3
2 4
51
He
vap
2-1
B
He
vap
1-1
A
GN
D
PW
R
Psuc
Pdis
CO
M
M6
X23
5 873 41 2 Y/G
R65 83
Tp
um
p
741 2
9x
AW
G1
8
4 3
Tp
um
p
12
He
vap
5-5
A
He
vap
6-5
B
Y/G
R
He
vap
5-6
A
6
3
He
vap
6-6
B
He
vap
1-1
A
He
vap
2-1
B
2 4
5
He
vap
2-2
B
He
vap
1-2
A
He
vap
4-3
B
He
vap
2-2
B
1
He
vap
4-4
B
He
vap
3-3
A
He
vap
1-2
A
He
vap
3-4
A
GN
D
SIG
NA
L
3 2
+5V
4 1
3
4
24 1
5
55
/PW
R
12
V
RM
M-c
om
PW
R
1
X5
342G
ND
AB
X19
RH
Hevap
GN
D
12
V
SIG
NA
L
GN
D
A2
A1
1 32
SSC6-CASUB CONTROLLER CA
Ta
mb
Tsup
1
Tsup
2
GN
D
SIG 5V
Te
vap
Tsuc
L1
L2
L3
1
3x
AW
G1
8
He
vap
2
SIG
NA
L
GN
D
1
7 852
Y/G
R
2
43
1
1
X18
Mp
um
p -
7M
pum
p -
8
[Blu
e]
K7
GN
D
X20
[Blu
e]
K8
PW
R
GN
D
PW
R
A1
A2
GN
D
TX
D
3 2 1
X8
X22
CL
1
CL
2
CL
3
GN
D
12V
SW
1
X9
FC
-com
AC
-IN
AC
-IN
GN
D4
RM
M-c
om
GN
D
33
TX
RX
21
4 1
2
44 3 1
L1
2
L2
L3
RX
TX
GN
D
M6
C B A
He
vap
4-3
B
He
vap
4-4
B
AWG 16
5
DE
He
vap
3-4
A
He
vap
3-3
A
873 41
GN
D
SIG
NA
L
GN
D
PW
R
2 Y/G
R
/B A
65+
5V
83 741 2
9x
AW
G1
8
GN
D
PW
R
F2
SIG
NA
L
56 2
12V
GN
D
4 3
A2
GN
D AB
1
5
A1
6 24
FC
-com
3 1
Tca
rgo
Tusd
a3
Tusd
a2
Tusd
a1
CO
MC
A
L2
L3
INT
ER
-LO
CK
INT
ER
-L
OC
K
INT
ER
-L
OC
K
53
Operating and service manual, Controlled Atmosphere
54
Operating and service manual, Controlled Atmosphere
Overall wiring schematic (alternate)
SC
C6
-CA
8
85
15
60
20
2
P/N
: 5
25
15
61
80
1
R
ev:
2.0
Lo
da
m e
lectr
on
ics a
/s
Ove
rall
Wir
ing
Sch
em
atic
Tre
tT
ret
K8
-
CC
W
K7
-
Me
va
p H
i
AW
G 1
4
K9
4 5 6M
oto
rPo
s2
GN
D
K1
0
B A
TR
3S
TR
4
L1
L2
L3
SPM6
POWERMEAS
MODULE
sw
itc
h
L1
L2
L3
Ou
tsid
e C
on
tro
lle
r B
ox
X1
6
[Bla
ck]
1
[Re
d]
X3
3 5
He
va
p6
-5B
He
va
p5
-5A
23 1
2
1
GN
D
SIG
NA
L
3 1
GN
D
PW
R
Vh
g
GN
D
Ve
xp
Ve
co
RX
-TX
+5
V
0,4
A
7 8
RX
D
652
Mco
nd
- 7
Mco
nd
- 8
Y/G
R
56 2
X2
5
431
4 3 1
56 24 3 1
Me
va
p1
- 7
Me
va
p1
- 8
CL
1
CL
2
2 1
CL
3
2 1
B A
GN
D
1
2 1
12
V
GN
D
RM
M 2
4V
AC
RM
M 0
VA
CX
50
(J
5)
Mp
um
p -
7
3
Mp
um
p -
8
2
24
VA
C
0V
AC
X5
1 (
J3
)
57 6 24 3
RX
1
TX
GN
D
RMM - York
Powerline
modem
Y/G
R
X6
3
X5
2 (
J1
)
21G
ND
X7
GN
D
RX
TX
1(G
ND
)
RMM-com
GN
D
TX
RX
GN
D
SIG
NA
L
GN
D
PW
R
L1
L2
SIG
NA
L
GN
D
FC
-co
m
L3
X2
6
Me
va
p2
- 7
Me
va
p1
- 8
Me
va
p1
- 7
LM
Ca
rgo
Me
va
p2
- 8
538
TX
7 4
GN
D
1 2
RX
2 3
US
DA
2
US
DA
3
Ca
rgo
US
DA
1
GN
D
SIG
NA
L
23 1
2
GN
D
PW
R
3 1
654
V V V
Ve
xp
Vh
g
Ve
co
B A
2 1B A
Inside Controller Box
Outside Controller Box
56 24 3 1
56 24 3 1
2 1
2 1
AWG 14
AWG 16 AWG 16
7 8
5
6
2
AWG 14
1
5
4
2
3
Y/G
R
6
431
K8
X1
Blu
e o
r G
rey
Me
va
p2
- 7
Me
va
p2
- 8
CL
3
CL
1
CL
2
CL
3
7
TR3S
4
x2
.5m
m2
[Re
d]
CL
2
CL
1
[Wh
ite
]
[Re
d]
TR
4
TR
5
K2
TR
3
[Red]
[Re
d]
5
6
K3
3
2 4
9
RS
23
2R
etr
ieve
rp
lug
in
co
nta
ine
r
51
10 8
QS
1
GN
D
DD
P
X1
3
23 1M
1
X2
1
2 3
V W Z
X1
2
+5
V
X Y
B
U
A
Mc
pr
L1
L2
L3
SIG
NA
L
GN
D
42
L1
L2
L3
5
4x
AW
G1
2
3
X1
00
1
6
Tra
fo
FC
-PW
R1 2
T1
3
1 2 3
4
CL
1
CL
2
CL
3
Insid
e C
on
tro
lle
r B
ox
Ou
tsid
e
Co
ntr
olle
r B
ox
A
F1
B
GN
D
2
SIG 5V
X2
4
L1
2
L3
L2
GN
D
4
SIG
NA
L
GN
D
1
1
TR
AF
O T
1A
pp
rox v
olta
ge
sT
erm
ina
l 1
-2 :
44
0V
AC
Te
rmin
al 3
-4 :
27
V A
CT
erm
ina
l 5
-6 :
24
V A
C
1 2
GN
D
3
PW
R
1
[Red]
7 8
Y/G
R
3
TR
2
TR
1
6
3
2
Outside Controller Box
Inside Controller Box4
51
INT
ER
-L
OC
K
Y/G
RY
/GR
Bla
ck
21
Bro
wn
Y/G
R3
Ove
rcu
rre
nt
an
d M
ain
sw
itc
h1 2
PO
WE
R I
N
K1
6
342
51
FC
GN
D
PW
R
PW
R
B A
2 1B A
1
0,4
A
X1
4
/ON
GN
D
2 1
2 1
K5
5 267
M
34 19 810
Me
va
p 2
Mc
on
d
6
3
2 4
51
9x
AW
G1
8
6
FC
-co
m
LM
Fro
nt
5
GN
D
TX
D
87
Sh
p-2
3 41 2 Y/G
R
X1
5S
hp
-1
Inside Controller Box
Outside Controller Box
DD
M
VB
US
On
/Off
+
3
BT
1
M
12
V N
iMH
Re
ch
arg
ea
ble
ba
tte
ry
GN
D
/B
SIG
NA
L
GN
D
H
L1
Pd
is
Mp
um
p
L2
L3
Psu
c
Hp
um
p
X4
1X
40
1 42 3
24 3 1
GN
D
GN
D
SIG
NA
L
24 3
1
1
38
28
Y/G
R
27
37
K7
B
Outside Controller Box
Inside Controller Box
GN
D
PW
R
K6
K7
Outside Controller Box
Inside Controller Box6
5
5
8 37
[Y/G
R]
41 2
Air
Air
Ex
2
TR4
2
5
112
Y/G
R
431
[Blu
e]
K9
65 8
2 1
K9
-
Mp
um
p
A2
3 741 2
A1
K-G
ND
K-G
ND
RS
23
2R
etr
ieve
rp
lug
in
sid
eC
trl B
ox
A1
A2
K1
0 -
M
he
at
CL
1
CL
2
9x
AW
G1
8
B
K1
0[B
lue
]
1 2
A
RX
TX
2
GN
D
1B A
K-G
ND
4 5 6
CL
3
1 32
A2
A1
CO
M
CL
1
INT
ER
-L
OC
K
Pm
em
CL
2
CL
3
GN
D
P
X1
0
TX
D
RX
D
Pm
em
GN
D
SIG
5V
Mco
nd
Me
va
p1
6
3
2
Me
va
p2
4
51
X1
1
C B
12
V
AD
AB
L3
GN
D
L2
L1
ON
1
GN
D
28
2 34
Mco
nd
- 7
GN
D
SIG
NA
L
X2
RH
27
X2
7
Mco
nd
- 8
K4
37
38
X4
K5
B
1
X1
7
K4
K5
K6
A1
SIG
NA
L
GN
D
A2
A1
A2
GN
D
SIG
NA
L
GN
D
PW
R
A2
Ou
tsid
e C
on
tro
lle
r B
ox
A1
Insid
e C
on
tro
lle
r B
ox
K-G
ND
LM
Ca
rgo
[Blu
e]
[Blu
e]
[Blu
e]
K4
-
Mco
nd
Lo
K6
-
Me
va
p L
o
K5
-
Mco
nd
Hi
CO
M
Me
va
p 1
32
/B
1 65
A
6
4 7
3
2 4
51
X0
GN
D
SIG
NA
L
24 3 1
LM FrontL
3
L1
L2
M
Air
Mo
tor
AC
-IN
AC
-IN
AR
XD
Y/G
R
6
3
2
Mp
um
p
4
51
A2
A1
Inside Controller Box
K-G
ND
Outside Controller Box
Hig
h p
ressu
resw
itch
(No
rma
lly c
lose
d)
12
V
GN
D
E
A B
1 32
Tsu
p1
Tsu
p2
Te
va
p
Tsu
c
Ta
mb
Air
Ex
SMC6.1
MAIN CONTROLLER
GN
D
SIG
NA
L
SIG
NA
L
GN
D
2 1
SIG
NA
L
SIG
NA
L
Op
tio
na
l
6
3
2 4
51
25 134
5
He
va
p6
-6B
He
va
p5
-6A
/ON
GN
D
24 1
CO
M
SUP6
USER
PANEL
3
KE
YP
AD
Insid
e C
on
tro
lle
r B
ox
Co
ntr
olle
r H
atc
h
Insid
e C
on
tro
lle
r B
ox
12
V
X8
0
10
KE
YP
AD
[Blu
e]
K1
[Blu
e]
K2
GN
D
PW
R
GN
D
[Blu
e]
K3
A/B
12
V
GN
D
PW
R
24
CL
1
CL
2
3
/ON
1
CL
3
5
12
V
ABGN
D
ON
K-G
ND
Co
ntr
olle
r H
atc
h
K3
-
He
va
p
K2
-
CW
K1
-
FC
GN
D
SIG
5V
GN
D
TR
4
TR
3S
GN
D
P P
6
K-G
ND
3
2 4
51
He
va
p2
-1B
He
va
p1
-1A
GN
D
PW
R
3
Psu
c
2
Pd
is
1
4
33
21
CO
M
4 1
2
44 3 12
Ou
tsid
e C
on
tro
lle
r B
ox
Insid
e C
on
tro
lle
r B
ox
Ou
tsid
e C
on
tro
lle
r B
ox
Insid
e C
on
tro
lle
r B
ox
M
3 2
6
1
X2
3
5 873 41 2 Y/G
R
4
33
2
65 83
1
4
Tp
um
p
741
1
2
9x
AW
G1
8
2
Tp
um
p
44 3 12
3 2
He
va
p5
-5A
He
va
p6
-5B
1
Y/G
R
He
va
p5
-6A
6
3
He
va
p6
-6B
He
va
p1
-1A
He
va
p2
-1B
2 4
5
He
va
p2
-2B
He
va
p1
-2A
He
va
p4
-3B
He
va
p2
-2B
1
He
va
p4
-4B
He
va
p3
-3A
4
He
va
p1
-2A
He
va
p3
-4A
GN
D
SIG
NA
L
33
21
4 1
2
4
+5
V
4 3
4
1
5
2
/PW
R
RM
M-c
om
PW
R
X5
O2
SE
N-
SO
R
CO
2
SE
N-
SO
R
RH
SE
N-
SO
R
X1
9
He
va
p
GN
D
12
V
SIG
NA
L
GN
D
A2
A1
RH
1 32
Ta
mb
Tsu
p1
Tsu
p2
GN
D
SIG 5V
Te
va
p
Tsu
c
L1
L2
L3
1
3x
AW
G1
8
He
va
p
2
SIG
NA
L
GN
D
1
7 852
Y/G
R
2
43
1
1
X1
8
Mp
um
p -
7M
pu
mp
- 8
[Blu
e]
K7
X2
0
[Blu
e]
K8
A1
A2
GN
D
TX
D
X8
X2
2
CL
1
CL
2
CL
3
RH
SW
1
X9
FC
-co
mR
MM
-co
mG
ND
TX
RX
INT
ER
-L
OC
K
L1
L2
L3
RX
TX
GN
D
M6
C B A
He
va
p4
-3B
He
va
p4
-4B
AWG 16
5
DE
He
va
p3
-4A
He
va
p3
-3A
873 41
GN
D
SIG
NA
L
GN
D
PW
R
2 Y/G
R
/B A
65+
5V
83 741 2
9x
AW
G1
8
GN
D
PW
R
F2
SIG
NA
L
56 2
GN
D
4 3
A2
1
5
A1
6 24
FC
-co
m
3 1
Tca
rgo
Tu
sd
a3
Tu
sd
a2
Tu
sd
a1
L2
L3
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