4.12 Controller Pre-Trip Test Codes; Table 4-7 Controller Pre-Trip Test Codes - Carrier Transicold 69NT40-561-001 Operation And Service Manual

4.12 Controller Pre-Trip Test Codes

"Auto" or "Auto1" menu includes the: P0, P1, P2, P3, P4, P5, P6 and rSLts. "Auto2" menu includes P0, P1, P2, P3,
P4, P5, P6, P7, P8, P9, P10 and rSLts. "Auto3" menu includes P0, P1, P2, P3, P4, P5, P6, P7 and P8.
Code Description
P0-0 Pre-Trip Initiated:
Configuration Display, In-
dicator Lamps, LEDs, and
Displays
P1 Tests - Heaters Current Draw: Heater is turned on, then off. Current draw must fall within specified
range. No other system components will change state during this test.
P1-0 Heaters Turned On
P1-1 Heaters Turned Off
P2 Tests - Condenser Fan Current Draw: Condenser fan is turned on, then off. Current draw must fall
within specified range. No other system components will change state during this test. If the Water Pres-
sure Switch is open this test will be skipped.
P2-0 Condenser Fan On
P2-1 Condenser Fan Off
P3 Tests - Low Speed Evaporator Fan Current Draw: The system must be equipped with a low speed
evaporator fan, as determined by CnF02, the Evaporator Fan Speed Select configuration variable. Low
speed evaporator fan is turned on, then off. Current draw must fall within specified range. No other sys-
tem components will change state during this test.
If unit configured for single evaporator fan operation and either AL11 or AL12 is active at the start of
either test, then the test will fail immediately. If AL11 or AL12 become active during the test, then the
test will fail upon conclusion of the test.
T-340
NOTE
Table 4–7 Controller Pre-trip Test Codes
Detail
Container identifier code, Cd18 Software Revision Number, Cd20 Contain-
er Unit Model Number, & configuration database identifier CFMMYYDD
are displayed in sequence.
Next the unit will indicate the presence or non-presence of an RMU ac-
cording to whether any RMU inquiry messages have been received since
the unit was booted.
Units equipped with Autoslide Enabled (Cnf44) will cause the vent to seek
to its closed position, followed by two sequences of opening to 100% and
returning to the closed position. No other autoslide mode of operation will
be available until the two cycles of opening and closing have completed.
Since the system cannot recognize lights and display failures, there are no
test codes or results associated with this phase of Pretrip. To know if the
test passes the operator must observe that the LCD display elements and
the indicator lights behave as described below.
Heater starts in the off condition, current draw is measured, and then the
heater is turned on. After 15 seconds, the current draw is measured again.
The change in current draw is then recorded.
Test passes if the change in current draw test is in the range specified.
Heater is then turned off. After 10 seconds, the current draw is measured.
The change in current draw is then recorded.
Test passes if the change in current draw test is in the range specified.
Condenser fan starts in the off condition, current draw is measured, and
condenser fan is then turned on. After 15 seconds the current draw is mea-
sured again. The change in current draw is then recorded.
Test passes if change in current draw test is in the specified range.
Condenser fan is then turned off. After 10 seconds the current draw is
measured. The change in current draw is then recorded.
Test passes if change in current draw test is in the specified range.
NOTE
4–46