Carrier X4 7300 Operation & Service Manual page 99

5.3.2 PC Mode
PC Mode allows the technician to access the control system without the engine running. When in PC Mode the
System is fully functional, all Operator Interfaces may be performed and the operation of the System may be
demonstrated, again, without the unit actually operating. Instruction for entering and using PC Mode are provided
in Figure 5.7.
Do not toggle the START/RUN - OFF switch out of the OFF position when in PC Mode or the
unit will start.
1. With the START/RUN - OFF switch in the OFF position, remove protective cover from the USB interface
port and insert a Data Transfer USB. NOTES: (1) A PC–USB service cable (Carrier Transicold part num-
ber22-04253–20) may also be used. (2) If configured to do so, the System will prompt for entry of the data
protect PIN code (refer to "PROTECT DATA WITH PIN",
The USB activity LED will flash, the Carrier Transicold logo will display and then the MessageCenter will
display one or more USB soft key descriptions.
Press the "PC MODE' soft key. DO NOT remove USB or cable at this time.
2. The MessageCenter will display "PC MODE". The System is now in PC Mode. The purpose of PC Mode is
to allow demonstration of the System features and allow changes to the System while the engine is not
actually running. It is important to note that any changes saved to memory while in PC Mode will remain
after leaving PC Mode.
Technician Mode should be canceled when work is complete. If Technician Mode is not can-
celed, Technician Mode will be available for 60 minutes after the last key press without requir-
ing a code, even after placing the SROS in the OFF and then back in the RUN/STOP position.
3. If Technician Mode is entered while in PC Mode, once the Technician Mode activity is complete, re-enter the
Technicians Menu, highlight "CANCEL TECHNICIAN MODE/PIN ACCESS" and then press the "=" key to
take the system out of Technician Mode before taking the System out of PC Mode.
4. When use of PC Mode is completed, remove the USB or cable. "SHUTTING DOWN − PLEASE WAIT" may
be displayed or after a few seconds, the display will go blank. Replace the cover on the USB port.
WARNING
!
Figure 5.7 PC Mode
START/STOP
CONTINUOUS
DEFROST
MENU
1
ALARM
START/STOP DIESEL COOL
36
36
.2
BOX TEMPERATURE F SETPOINT F
PC MODE
USB memory device activity LED - Typical
Table 5–1).
5–9
1
I
START/RUN
O OFF
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