Start--Up Inspection - Carrier 69NT40-489-100 Series Operation And Service Manual

NOTE
The CA system will require up to 30 minutes for
warm-up. The sensors require a warm-up time
and will display dashes (-- -- -- -- -- ) until good
values can be displayed. Once the CA com-
pressor starts, the drain valves open.
5. Perform START--UP INSPECTION, refer to section
10.3.
Stopping the CA System
1. Vent (Refer to 10.7 page 113)
WARNING
Low oxygen levels inside container. Venti-
late container (refer to section 10.7 page
113) before entering. Stay away from doors
while venting.
2. Move the CAS switch to the OFF position (0).
10.3 START- -UP INSPECTION
Once the STANDBY LED has de-energized, proceed as
follows:
a. Check "Oxygen Sensor Life", code Cd14.
b. Check "Hours Since Compressor Service", code
Cd16.
c. Check "Hours Since Filter Change", code Cd17.
d. Perform Pre-Trip diagnostics.
e. Verify "Door Lock Solenoid State", code Cd30.
10.4 PRE- -TRIP
Pre-Trip diagnosis provides automatic testing of the unit
components using internal
comparison logic. The program will provide a "PASS" or
"FAIL" display to indicate test results.
The testing begins with access to a pre-trip selection
menu. These tests will automatically perform a series of
individual pre--trip tests. The user may also scroll down
to select any of the individual tests. The contents of the
menus are as follows:
PRE-TRIP SELECTION MENU
Manual User Selected
P1--0, P1--1, P1--2, P2--0, P3--0,
Auto P4--0, P4--1, P4--2, P5--0, P5--1,
P6--0, rSLts
Pre--trip "P" functions are defined as follows:
P1-0 The "Drain Solenoid Valves" are tested.
P1-1 The "Oxygen Solenoid Valve" is tested.
P1-2 The "Nitrogen Purity Valve" is tested.
P2-0 The membrane temperature is brought to set point.
P3-0 An O sensor span calibration is performed (i.e., "O
2
Air Cal").
P4-0 A CO sensor zero calibration is performed (i.e.,
2
"CO Zero Cal").
2
P4-1 An CO sensor zero calibration is performed (i.e., the
2
sensor reading is checked against a calibration gas of
known 0% O content).
2
T-305
measurements and
2
112
P4-2 A CO
sensor span check is performed (i.e., the
2
sensor reading is checked against a calibration gas of
known CO content). If code 32 is set to OFF, test is
2
skipped.
P5-0 System performance is tested for N
output from the membrane.
P5-1 System performance is tested for N2 purity at the
output from the membrane with the nitrogen purity
valve energized.
P6-0 A CO
sensor zero calibration is performed (i.e.,
2
"CO Zero Cal") same as, although independent
2
from P4-0.
If no selection is made, the pre-trip menu selection
process will terminate automatically.
Scrolling down to the "rSLts" code and pressing ENTER
will allow the user to scroll through the results of the last
pre--trip testing run. If no pre--testing has been run (or an
individual test has not been run) since the unit was
powered up "--------" will be displayed.
To start a pre--trip test, do the following:
NOTE
1. Prior to starting tests, verify that unit
voltage (Function Code Cd 07) is within
tolerance and
(Function Codes Cd04, Cd05, Cd06) is
within expected limits. Otherwise, tests
may fail incorrectly.
2. All alarms must be rectified and cleared
before starting tests.
Pre-trip diagnosis may also be initiated via
3.
communications. The operation is the
same as for the key pad initiation described
below except that should a test fail, the
pre-trip mode will automatically terminate.
When initiated via communications, a test
may not be interrupted with an arrow key,
but the pre-trip mode can be terminated
with the PRE-TRIP key.
a. Press the PRE-TRIP key. This accesses a test selec-
tion menu.
b. TO RUN AN AUTOMATIC TEST: Scroll through the
selections by pressing the UP ARROW or DOWN
ARROW keys to display AUTO and then press the
ENTER key.
While tests are running, "P#-#" will appear on the left
display, where the #'s indicate the test number and
sub-test. The right display will show a countdown time
in minutes and seconds, indicating how much time
there is left remaining in the test.
CAUTION
When a failure occurs during automatic
testing the unit will suspend operation
awaiting operator intervention.
When an automatic test fails, it will be repeated once .
A repeated test failure will cause "FAIL" to be shown
on the right display, with the corresponding test num-
purity at the
2
unit amperage draw