12820_TechLINE_1Qtr08.qxd:12820_TechLINE 1stQtr08

12820_TechLINE_1Qtr08.qxd:12820_TechLINE 1stQtr08
VOLUME 14 NUMBER 1
AN EXCHANGE OF TECHNICAL INFORMATION
ABOUT CARRIER TRANSICOLD CONTAINER PRODUCTS
Inside This Issue
The QUEST option is a model number configurableonly option. If configured, it can be enabled or
disabled by selecting code 50, pressing the arrow
“UP” or “DOWN” keys to select “OFF” or “ON”
and pressing “ENTER”.
TechFact
Tier 4i Engine
Container ID and Real Time Clock
Software Release Update
Pretrip Startup
P5-10,11,12 (Humidity Sensor)
Also, depending on the model number, the unit is
configured either default “OFF” or “ON”. If the
controller is configured with a default setting “ON”,
it will reset the code select 50 option to “ON” after
every pretrip or trip start. If default is set to “OFF”
the controller will reset code select 50 to “OFF”
after pretrip or trip start.
Feature Article
QUEST
eAutoFresh™
?
1st /2nd Qtr 2008
TechFAQ
? Heater Megohm Reading
Feature Article – QUEST Power-Saving Mode
Carrier Transicold offers a power saving option
called QUEST. QUEST is a method of temperature
control during steady-state perishable cooling that
intelligently cycles the compressor on and off based
on air temperature limits. In doing so, it reduces the
cooling energy consumption while also reducing
CO2 emissions related to that power consumption.
In conjunction with the compressor cycling, the
evaporator fans will cycle between high and low
speeds. The fans will run on low speed when the
compressor is cycled off and high speed when the
compressor is cycled on.
When QUEST is active (“ON”), code select 50 will
display one of the following conditions:
• “ON”
• “PULL” = suspended by pulldown.
• “SEtPt” = suspended by setpoint outside the
range.
• “CAHUM” = suspended by CA or humidity
control.
• “ACt” = suspended by ACT active.
• “FAIL” = return temperature probe failure.
The cycling of the compressor with perishable
setpoints is new for the NT. Check to see if QUEST
Logic is active prior to troubleshooting.
Mark Donahoe
Please circulate this newsletter to all of your support personnel
Carrier Transicold Division • P.O. Box 4805 • Syracuse, New York 13221 • +1 315-432-7688 • Fax +1 315-432-7698
Techline – Page 1
Feature Article – Enhanced Automated Fresh Air (eAutoFesh™) On-Demand Ventilation
Carrier Transicold offers an option called eAutoFresh™ which is an on-demand
ventilation fresh-air exchange system. Traditionally, the fresh air vent was set
to a manual position to prevent the build-up of damaging levels of CO2 and
Ethylene within the container during the voyage. But often, the vents were
opened too wide and overcompensated for these concerns. The vent being
open too wide resulted in an additional refrigeration load on the unit which
unnecessarily increased the unit’s power consumption while extending
temperature pulldowns. The eAutoFresh™ system utilizes a CO2 sensor
which controls a stepper motor to open and close the fresh air makeup vent to
maintain selected O2 or CO2 values. The controller will monitor and record the
O2 and CO2 readings.
The following modes of operation are selectable via code select 43: “OFF”, “USER”, “TEST”, “DELAY”,
and “GASLIMIT”. Within the modes of operation are submenus that contain the operational parameters for
their respective mode.
Modes of operation:
When setting any mode of operation, the entire process must be followed to ensure
all parameters are set.
If the OFF mode is selected, it will disable all automatic venting operations. The eAutoFresh™ vent will be
driven fully closed and the eAutoFresh™ opening set to 0 CMH in function code Cd44. This is the default
mode anytime a frozen mode of operation has been selected. Whenever a frozen setpoint is selected, the current
eAutoFresh™ setting will be saved. The vent position will be restored when a perishable setpoint is selected.
If the USER mode is selected, it provides a continual setting of the vent position. The flow rate can be
accessed through the submenu if a perishable setpoint has been selected. To set the flow rate, press the
“ENTER” key to activate the selection mode. When “FLO” appears in the left hand window, use the “UP”
or “DOWN” arrow key to scroll to the desired opening. The range is from 0 to 220CMH (0 to 129CFM) in
increments of 5 or 3 respectively. Press the “ENTER” key to set the value and begin operation.
If the DELAY mode is selected the operation of the eAutoFresh™ system will be delayed for a set amount of
time. This allows time for the cargo to reach setpoint. In “DELAY” mode, the eAutoFresh™ vent will open to
the stored (FLO) value when the return air temperature sensor is at or below setpoint plus the return offset
value (rtn) or the delay time (tIM), whichever comes first. The eAutoFresh™ vent will fully close when the
return air temperature sensor is greater than the setpoint plus the offset temperature (rtn).
To set the unit in “DELAY” mode scroll until “DELAY” appears in the left window, then press the “ENTER”
key to activate the submenu. The first selection is the amount of time (tIM) for the delay. Select the amount
of time for the delay by using the “UP” and “DOWN” arrow keys. The range is from 1 – 72 hours in 1 hour
increments. Press the “ENTER” key to set the value and move to the “FLO” rate. Use the “UP” or “DOWN”
arrow key to scroll to the desired “FLO” rate. The range is from 0 to 220CMH (0 to 129CFM) in increments
of 5 or 3 respectively. Press the “ENTER” key to set the value and move to the return temperature offset. Use
Techline – Page 2
the “UP” or “DOWN” arrow key to scroll to the desired “rtn” rate. The range of offset is from 0.6ºC – 2.8ºC
(1.0ºF – 5.0ºF) in 0.1º increments. Press the “ENTER” key to set the value and begin operation.
If the GAS LIMIT (gASLM) mode and a perishable setpoint have been selected and a valid reading is
detected from the carbon dioxide sensor, the microprocessor will monitor and limit the amount of carbon
dioxide within the container by opening and closing the eAutoFresh™ vent. The eAutoFresh™ vent will open
to the (FLO) setting once the unit has completed initial temperature pulldown or if the cargo temperature is
within 5°C (9 ºF) of setpoint and the carbon dioxide level has reached the max limit, or if the oxygen level
has reached the lower limit. After the first 15 minutes of the eAutoFresh™ vent opening, the controller will
again evaluate the level of CO2 and/or O2 levels. If the gas limit values are satisfied after the first 15 minutes,
then the vent will close. If either gas limit has not been satisfied within 15 minutes, the air exchange vent will
open in 10 CMH (5.9 CFM) increments every 15 minutes until both gas concentrations are satisfied. Once all
limits are satisfied, the vent will return to the closed position. If conditions are not met with the door open
100% for 90 minutes, Alarm 29 will be activated.
To operate in GAS LIMIT mode, scroll until “gASLM” appears in the left window, then press the “ENTER”
key to activate the submenu. The first selection is the maximum carbon dioxide (CO2LM). Select the max
level by using the “UP” and “DOWN” arrow keys. The range is from 0 to 19% in 1% increments. Press the
“ENTER” key to set the value and move to the minimum oxygen level (O2LM). The range is from 2 to 20%
in 1% increments. Press the “ENTER” key to set the value and move to the “FLO” rate. Use the “UP” or
“DOWN” arrow key to scroll to the desired “FLO” rate. The range is from 0 to 220CMH (0 to 129CFM) in
increments of 5 or 3 respectively. Press the “ENTER” key to set the value and begin operation.
If TEST mode is selected, it allows the operator to test the movement of the mechanical door air vent and
calibrate the carbon dioxide sensor. To operate in the “TEST” mode, enter the “TEST” mode and select either
“tEST” or “CAL”.
tESt – The eAutoFresh™ door will open fully and then return to the closed position. The test will be
observed visually by the operator to ensure proper operation of the eAutoFresh™ vent. After completion
of the test, the unit will return to the previous mode of operation.
NOTE: It is recommended that the calibration procedure only be performed
during pretrip or when the container has been fully vented.
CAL – When “CAL” mode is selected the display will flash “CAL”. The operator will hold the “ENTER”
key for 5 seconds. The display will stop flashing and read “CAL” for 5 seconds. The microprocessor will
read the CO2 value and then compare that value to a known zero value. If the sensor is within the calibration
parameter range, the microprocessor will determine the appropriate offset for the sensor. If the sensor is
outside of this range (for example if the container is loaded or has a high level of CO2 ), the controller will
flash “NOCAL” for 5 seconds, then revert back to the previous mode of operation.
The new on-demand ventilation option is limited to perishables where the optimal combined CO2 and O2
range is 21%. For applications that require a combined CO2 and O2 level less than 21%, Carrier offers the
Everfresh™ controlled-atmosphere system.
Mark Rogers
Techline – Page 3
TechFact – Tier 4i Engine
Carrier Transicold has introduced the EPA Tier 4i (Interim) compliant generator sets starting with the February
2008 production. To meet the emissions regulation, Carrier has incorporated the new Kubota Tier 4i compliant
engine in both the Undermount (UG) and Clip-On (RG) generator sets.
The external changes consist of the following :
• The elimination of the glow plugs and the incorporation of an inlet air heater.
• The intake heater is mounted to the inlet of the intake manifold, which is now
rear facing (flywheel side instead of radiator side).
• A heavier flywheel with a new larger 2.5kW starter.
• An electronically controlled speed regulation governor system. This system is
made up of a combination of an engine speed sensor and an electronic control module. The electronic
control module is preprogrammed with the desired engine speed (1800 RPM), providing a constant engine
speed. This type of speed control eliminates any need to adjust the engine throttle speed adjustment screws.
Internal changes consist of smaller diameter pistons with an increase of stroke length (~1/2 inch to maintain the
displacement at 2.2 liters). This change in stroke also increased the deck height of the block.
The basic operation and starting procedure remains the same as previous versions of Carrier Gensets. The
units still have a toggle switch used for preheat, but instead of preheating the combustion chamber, the preheat
switch now engages the Air Intake Heater. The preheat period (still a manual operation) is still dependent upon
the ambient temperatures. After preheating and starting the engine using the “START” switch, the air intake
heater will remain energized for 3 minutes, after the release of the air intake heater switch. During this 3 minute
heater “ON” period, the Amp meter in the control box will indicate a system discharge (40 amp draw) instead
of showing a positive charge as with the previous style of units. On termination of the 3 minute heater “ON”
period, the heater turns “OFF”, and the Amp meter will then indicate a positive charge to the battery.
As with previous models, Bio-Diesel of grade B5 or lower can be used. A rating higher than B5, if used, will
void warranty.
Never use any type of engine starter spray with these units due to pre-ignition in the inlet manifold.
Gary Barkowksi
TechTip – Software Update
DataBank – 0512
The latest software release versions for the
69NT units are:
The software, except for DataLine, can be
downloaded from Transcentral within the
Carrier Transicold Website at
http://www.container.carrier.com/. DataLine can
only be upgraded from the site if you have an
original copy.
Note, you should always receive permission from
the end user prior to upgrading the unit.
Scroll (ML2i/ML3) – 5340
Reciprocating Unit (ML2i / ML3) – 5140
Reciprocating Unit (ML2) – 1207
Controlled Atmosphere – 3112
DataLine – 1.7
Techline – Page 4
TechFact – Container ID and Real Time Clock
In the past, it was possible to set the container ID and the RTC (Real Time Clock) only by using the DataReader or the DataLine program. There is now another possibility, using the ML2i/ML3 software card. Cards
with software versions of 5137 (recip) or 5328 (scroll) or greater allow the Operator to program the controller
using the software card. This feature was added due to unavailability of Data-Reader or a PC in the field and
operating in adverse weather conditions.
When the Operators insert the software card in the controller, they can scroll through menu items and choose
which process to run. The “SET UP” option will bring you to a submenu consisting of “RUN” “CONFIG”,
“SET TIM”, and “SET ID”.
- The “UP” and “DOWN” arrow keys are used to scroll through menu items.
- The “ENTER” key runs an application or moves forward in the menu.
- “CODE SELECT” key will move you back in the menu.
Set Container ID:
1. Turn the power “OFF’ and insert software programming card.
2. Turn unit power “ON”. Displays will show: SEt UP.
3. Press “ENTER” key once. Displays will show: run COnFG.
4. Press the “UP” or “DOWN” arrow key until display reads: SEt Id and press “ENTER”.
5. Press the “UP” and “DOWN” arrows to scroll through the letters or numbers you want to enter and
press “ENTER”.
a. Note 1: The character that you are modifying will always be on the right most position on the display.
b. Note 2: The “ENTER” key will enter a letter, shift the segment to the left, and bring up the next letter.
c. Note 3: The “CODE SELECT” key will act as a backspace and shift the letters to the right bringing
you back to modify the previous letter.
d. Note 4: The first 4 letters are alpha characters and the last 7 are numeric.
6.
7.
8.
9.
Repeat step 5 until the full container ID has been entered.
When the container ID setup is completed, displays will show: SEt Id.
Turn unit power “OFF” and remove the software/programming card.
Turn power “ON”, display will show the Id XXXXXXX (The last 7 numerical digits) on startup.
Set Date and Real Time Clock:
1. Turn the power “OFF” and insert software card.
2. Turn unit power “ON”. Display will show: SEt UP.
3. Press “ENTER” key once. Display will show: run COnFG.
4. Press the “UP” or “DOWN” arrow key until display reads: SEt tIM.
a. Press “ENTER” key once. Display will show XXXX XX-XX (YYYY MM-DD). You will start
off modifying the Day, Month, and then Year.
5. Press the “UP” and “DOWN” arrows to scroll through the numbers you want to enter for the Day, Month
and Year pressing the “ENTER” key once for each selection.
6. After you press “ENTER” on the year you will then modify the Time (HH MM). Minutes first then Hour.
7. Press the “UP” and “DOWN” arrows to scroll through the numbers you want to enter for the Minutes and
Hours and press the “ENTER” key once. Data and Time is completed. Turn power “OFF”.
Nadir Guenane
Techline – Page 5
email: container.products@carrier.utc.com
TechFact – Pretrip Startup
On pretrip startup, the following sequence of visual
tests will occur:
• Numeric portion of container ID is displayed in
format 'Id 12 34567' for about six seconds.
• Software revision number and container unit
model number are displayed for about three
seconds.
• Configuration database identifier CFMMYYDD
is then displayed.
• RMU modem status is displayed.
With software versions 5140, 5340 and greater,
software logic was implemented to detect the
presence of the RMU module during the execution
of pretrip. On the startup of the pretrip, the controller
will check for a communication path with the
RMU. During the test, an rM' 'tESt will display. On
completion of the test, one of the following
messages will display for three seconds.
the controller will look for a humidity sensor to assure
that one has not installed.
Controller
Configuration
Sensor
Found
Test Results
No
No
Proceed to test P6-0
No
Yes
Fail (set configuration)
P5 -11 – Humidity sensor installation check: This test
confirms that a humidity sensor is present with the
controller configuration set at yes from test 5-10. It
is a pass/fail test. Test passes if the controller senses a
humidity sensor reading greater than 6%.
Controller
Configuration
Sensor
Found
Test Results
Yes
No
Fail (troubleshoot sensor)
Yes
Yes
Pass (proceed to 5-12)
P5 -12 – Humidity sensor out of range test: This is a
Pass/Fail test. Sensor readings below 10% will result
in a failed test. Pretrip test must pass 5-11 before this
test is run.
Left Display Right Display
RMU present
rM
PreS_ (Present)
RMU not present rM
nPreS (Not Present)
This is a visual confirmation test only and has no
associated failure action. If an RMU is found in
the unit at the initial inspection but results displayed
is “nPreS” (not present), then the unit should be
examined to determine cause of the failure to
communicate. This test will add no time to the
controllers pretrip and the results will not be
included as part of the “pretrip” results menu.
Perry Hoover
Perry Hoover
TechFAQ – Heater Megohm Reading
In the TechLine edition volume 11 number 2 published
in 2006, the article titled, “Heater Megohm Reading
Procedure”, the following step should be added on
completion of step 2c.
After powering the unit off in step three, the
Technician should allow the temperature of the heater
to return to ambient condition prior to megohming the
heater.
David Whyte
TechFact – P5-10,11,12 (Humidity Sensor)
Pretrip test 5-0 was enhanced to include tests 5-10, 11
and 12 to perform a check on the Humidity sensor.
P5 - 10 – Humidity Sensor controller configuration
verification test: This is a Pass/Fail test to confirm the
accuracy of the configuration. If configuration is yes,
proceed to test 5-11. If configuration is set to no then
TechLine is a publication of Carrier Transicold
Editor: Perry Hoover
Contributors: Gary Barkowski, Mark Donahoe,
Nadir Guenane, Mark Rogers, David Whyte
Thanks to all who reviewed and supported
this release.
Please circulate this newsletter to all of your support personnel
www.container.carrier.com
Techline – Page 6
Emergency 24-Hour Technical Assistance
800-668-6283 (800-ONTO-CTD)
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