Starting And Stopping Instructions; Starting The Unit; Stopping The Unit; Start-Up Inspection - Carrier 69NT40-541-304 Operation, Service And Parts Supplement

4.3

STARTING AND STOPPING INSTRUCTIONS

Make sure that the unit circuit breaker(s) (CB-1 & CB-2) and the START-STOP switch (ST) are in
the "O" (OFF) position before connecting to any electrical power source.
4.3.1

Starting the Unit

1. With power properly applied, the fresh air damper set and (if required) the water-cooled condenser con-
nected, place the START-STOP switch to "I" (ON).
2. Continue with Start Up Inspection,
4.3.2

Stopping the Unit

1. To stop the unit, place the START-STOP switch in position "0" (OFF).
4.4

START-UP INSPECTION

4.4.1

Physical Inspection

1. Check rotation of condenser and evaporator fans.
2. Check compressor oil level (Refer to paragraph 6.8.6 in the Operation and Service Manual for 69NT40-541-
300 to 349 series units).
4.4.2

Check Controller Function Codes

Check and, if required, reset controller Function Codes (Cd27 through Cd39, and Cd 52) in accordance with
desired operating parameters. Refer to
4.4.3

Complete Inspection

Allow unit to run for five minutes to stabilize conditions and perform a pre-trip diagnosis in accordance with the fol-
lowing paragraph.
4.5

PRE-TRIP DIAGNOSIS

Pre-trip inspection should not be performed with critical temperature cargoes in the container.
When Pre-Trip key is pressed, dehumidification and bulb mode will be deactivated. At the com-
pletion of Pre-Trip activity, dehumidification and bulb mode must be reactivated.
It is recommended for the container to be partitioned during pre-trip diagnostics.
Pre-Trip diagnosis provides automatic testing of the unit components using internal measurements and compari-
son 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. The user may have the option of selecting one of three
automatic tests (depending on software revision installed). These tests will automatically perform a series of indi-
vidual pre-trip tests. The user may also scroll down to select any of the individual tests. The contents of the menus
are as follows:
T-319
WARNING
!
Section 4.4.
Section 3.2.
CAUTION
!
CAUTION
!
NOTE
4–2