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4–3
T-319
A detailed description of the pre-trip test codes for the dual temperature operation is listed in
. If no selec-
tion is made, the pre-trip menu selection process will terminate automatically. However, dehumidification and bulb-
mode must be reactivated manually if required.
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 pow-
ered up “--------” will be displayed.
Before Starting a Pre-Trip Test:
• Prior to starting tests, verify that unit voltage (Function Code Cd 07) is within tolerance and unit amperage
draw (Function Codes Cd04, Cd05, Cd06) is within expected limits. Otherwise, tests may fail incorrectly.
• All alarms must be rectified and cleared before starting tests.
Starting a Pre-Trip Test:
NOTE
Pre-trip diagnosis may also be initiated via 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 termi-
nate. 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.
1. Press the PRE-TRIP key. This accesses a test selection menu.
a. TO RUN AN AUTOMATIC TEST: Scroll through the selections by pressing the UP ARROW or DOWN
ARROW keys to display AUTO, AUTO 2 or AUTO 3 as desired and then press the ENTER key.
• The unit will execute the series of tests without any need for direct user interface. These tests vary in
length, depending on the component under test.
• 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 opera-
tor 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 number to the left. The user may
then press the DOWN ARROW to repeat the test, the UP ARROW to skip to the next test or
the PRE-TRIP key to terminate testing. The unit will wait indefinitely, until the user manually
enters a command.
CAUTION
!
When Pre-Trip test Auto 2 runs to completion without being interrupted, the unit will terminate
pre-trip and display “Auto 2” “end.” The unit will suspend operation until the user depresses
the ENTER key!
When an Auto test runs to completion without a failure, the unit will exit the pre-trip mode, and
return to normal control operation. If configuration variable CnF42 is set to IN, a Data-
CORDER trip start will be entered. If CnF42 is set to OUT, the trip start will not be entered.
However, dehumidification and bulb mode must be reactivated manually if required.
Table 4–1 Pre-Trip Selection Menu
Auto or Auto 1
Auto 2
Auto 3
P, P1, P2, P3, P4, P5, P6, rSLts
P, P1, P2, P3, P4, P5, P6, P7, P8,
P9, P10, rSLts
P, P1, P2, P3, P4, P5, P6, P7, P8,
rSLts
Summary of Contents for 69NT40-541-304
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Page 8: ...T 319 iv...
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Page 61: ...7 3 T 319 Figure 7 2 Schematic 69NT40 541 304...
Page 62: ...T 319 7 4 Figure 7 3 Unit Wiring Diagram Sheet 1 69NT40 541 304...
Page 63: ...7 5 T 319 Figure 7 4 Unit Wiring Diagram Sheet 2 69NT40 541 304...
Page 64: ...T 319 7 6 Figure 7 5 Legend 69NT40 541 345...
Page 65: ...7 7 T 319 Figure 7 6 Schematic 69NT40 541 345...
Page 66: ...T 319 7 8 Figure 7 7 Unit Wiring Diagram Sheet 1 69NT40 541 345...
Page 67: ...7 9 T 319 Figure 7 8 Unit Wiring Diagram Sheet 2 69NT40 541 345...
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Page 78: ...T 319 13 1 13 RECEIVER 8 5 17 18 19 20 4 Item 1 4 2 3 6 7 8 6 7 10 9 11 12 13 14 15 16 2...
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Page 84: ...T 319 17 1 17 REMOTE EVAPORATOR FRAME A A A A 4 2 5 6 3 8 9 1 15 11 7 12 10 14 13 2 2 2 9 3 9...
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