Carrier Transicold X4 7300 User manual

62-11644 Rev B
OPERATOR’S MANUAL
for the
X4 7300/7500
Trailer & Rail Refrigeration Units
Trailer & Rail Refrigeration
MENU
ALARM
OFF
START/RUN
O
I
DEFROST
CONTINUOUS
START/STOP

OPERATOR’S
MANUAL
for the
X4t7300/7500
Trailer & Rail Refrigeration Units
©2014 Carrier Corporation DPrinted in U. S. A. November 2014

62−11644
TABLE OF CONTENTS
Page
Introduction 1..................................
Unit Identification 2..............................
Safety 3.......................................
Display 4......................................
Display Screens 5...............................
Starting Unit 6..................................
Inspect Mode 8.................................
IntelliSett10...................................
Operator Messages 12..........................
Pretrip 14......................................
Changing Setpoint 16...........................
Start-Stop or Continuous Operation 18............
Data Recorder / Trip Start 20.....................
Manual Defrost 22..............................
Language Selection 24..........................
Unit Data 25....................................
Alarm List 28...................................
View Hour Meters 29............................
Stopping Unit 30................................
Emergency Bypass Mode 31.....................
Pretrip Inspection 32............................
Product Loading 34.............................
Recommended Transport Temperatures 35........
General Troubleshooting 36......................
Fuses 38.......................................
Maintenance 40................................
Maintenance Schedule 40........................
Priming Fuel System 43.........................
Emergency Road Service 44.....................

162-11644
INTRODUCTION
This guide has been prepared for the operator of a Carrier Transicold
X4t7300/7500 Trailer or Rail refrigeration unit with APXtControl
System. It contains basic instructions for the daily operation of the
refrigeration unit as well as safety information, troubleshooting tips, and
other information that will help you to deliver the load in the best possible
condition. Please take the time to read the information contained in this
booklet and refer to it whenever you have a question about the
operation of this Carrier Transicold unit.
This refrigeration unit has been engineered to provide long, trouble-free
performance when it is properly operated and maintained. The checks
outlined in this guide will help to minimize over-the-road problems. In
addition, a comprehensive maintenance program will help to insure that
the unit continues to operate reliably. Such a maintenance program will
also help to control operating costs, increase the unit’s working life, and
improve performance.
This guide is intended as an introduction to this unit and to provide
general assistance when needed. More comprehensive information
can be found in the Operation & Service Manual for this unit. This
manual can be obtained from your Carrier Transicold dealer.
When having this unit serviced, be sure to specify genuine Carrier
Transicold replacement parts for the highest quality and best reliability.
At Carrier Transicold, we are continually working to improve the
products that we build for our customers. As a result, specifications may
change without notice.

62-11644 2
UNIT IDENTIFICATION
Each unit is identified by a decal attached to the frame of the unit inside
the roadside side door. This decal is on the bottom vertical frame next
to the display. The decal identifies the model number of the unit, the
warranty ID number, the serial number, the type of refrigerant and
refrigerant charge.
If a concern arises, please refer to the information on this decal, and
make a note of the model and serial number before calling for
assistance. This information will be needed when you contact an
authorized Carrier Transicold Dealer so that they may properly assist
you.
Nameplate
(Sample)
Model Name:
Serial No:
Model No:
Warranty ID:
Refrigerant:
Standby:
Max. Op. Press.
X4 7500
###########
NDW236##-##-#
######
R404A
LP: 100psig/HP: 465psig
Athens Ga.
YEAR
456
789
10 11 12
123 2011
2012
2013
2014
DAY
Made in the United States of America
123456789
10 11
12 13 14 15 16 17 18 19 20 21
2423 25 26 27 28 29 30
22
31
Manufacturer’s Warranty Statement:
See dealer for warranty coverage
details.
MONTH
DATE IN SERVICE

362-11644
SAFETY
WARNING
Unit may start automatically at any time even if the switch
is in the OFF position. Use proper lockout/tagout proce-
dures before inspection/servicing. All unit inspection/
servicing by properly trained personnel only.
This Carrier Transicold refrigeration unit has been designed with the
safety of the operator in mind. During normal operation, all moving parts
are fully enclosed to help prevent injury. During any inspection or
servicing with the doors open you may be exposed to moving parts;
please stay clear of all moving parts when the unit is in operation.
NOTE TO TECHNICIANS
Refer to the Operation & Service Manual for a complete list
of safety precautions.
AUTO-START
This refrigeration unit is equipped with Auto-Start in both Start-Stop and
Continuous Operation. The unit may start at any time. A buzzer will
sound for 5 seconds before the unit is started. When performing any
check of the refrigeration unit (e.g., visually checking belts, checking
the oil), place unit in Inspect Mode and disconnect the starter solenoid
connector.
COOLING SYSTEM
The engine is equipped with a pressurized cooling system including a
pressurized coolant bottle. Under normal operating conditions, the
coolant in the engine and radiator is under high pressure and is very hot.
Contact with hot coolant can cause severe burns. Do not remove the
cap from a hot coolant system; if cap must be removed, cover it with a
rag and remove very slowly in order to release pressure without spray.
REFRIGERANT
The refrigerant contained in the refrigeration system of this unit can
cause frostbite, severe burns, or blindness when in direct contact with
the skin or eyes. For this reason (and because of legislation regarding
the handling of refrigerants) we recommend that you contact your
nearest Carrier Transicold authorized repair facility whenever service
of the refrigerant system is required.
BATTERY
This unit may be equipped with a lead-acid type battery. The battery
normally vents small amounts of flammable hydrogen gas. Do not
smoke when checking the battery. A battery explosion can cause
serious physical harm and/or blindness.

62-11644 6
STARTING UNIT
OFF
START/RUN
O
I
CONTINUOUS
START/STOP
MENU
ALARM
DEFROST
COOLDIESELSTART/STOP
STATUS OK
36 36.2
BOX TEMPERATURE 5F SETPOINT 5F
Under no circumstances should ether or any
other starting aids be used to start the engine.
1
4
3
WARNING
Unit may start automatically at any time even if
the switch is in the OFF position. Use proper
lockout/tagout procedures before inspection/
servicing. All unit inspection/servicing by
properly trained personnel only.
WARNING

762-11644
STARTING UNIT -CONTINUED
1. Place the START/RUN-OFF switch in the START/RUN position.
2. The system will display the Carrier Transicold logo, display the
default screen, present language selection and the hour meter
readings (if configured to do so) along with a test flash of the
alarm light. The system will then perform a start sequence, ener-
gize the buzzer, and then start the unit automatically.
3. If there is an alarm present, the alarm message will be displayed
in the MessageCenter and the alarm LED will flash for 5 sec-
onds. If one or more shutdown alarms are present, the alarm(s)
must be cleared before the unit will start.
4. Observe the MessageCenter. If the word “ACTIVE” or
“MODIFIED” is displayed at the right, the unit is equipped with
IntelliSettsettings; for more information refer to the IntelliSet
section of this book.

62-11644 8
INSPECT MODE
CONTINUOUS
START/STOP
MENU
ALARM
COOLDIESELSTART/STOP
36 36
.2
BOX TEMPERATURE 5F SETPOINT 5F
2
1
DEFROST
Enter Inspect Mode:
1. With the system powered up (START/RUN-OFF switch in the
START/RUN position) press the MENU key until INSPECT
MODE is displayed.
2. Press the INSPECT MODE soft key, the unit will shut down.
Inspect Mode provides an additional layer of safety for operators
and technicians. Inspect Mode should be used during all pretrip
inspections of the unit.
Inspect Mode is a user activated feature that forces the unit to
shutdown and remain in shutdown regardless of operating state.
After unit inspection, Inspect Mode must be manually disabled, at
which point the unit will resume standard operation.
Inspect Mode is not a substitute for proper Lockout/Tagout
procedures, which are always required when servicing the unit.
INSPECT
MODE EXIT

962-11644
INSPECT MODE -CONTINUED
CONTINUOUS
START/STOP
MENU
ALARM
COOLDIESELSTART/STOP
36 36
.2
BOX TEMPERATURE 5F SETPOINT 5F
4
DEFROST
Exit Inspect Mode:
3. While the unit is in Inspect Mode, the EXIT soft key will be
available, all other keys and functions will be locked out.
4. Press the EXIT soft key to disable Inspect Mode, the unit will
resume standard operation.
TECH
MODE
INSPECT
MODE
EXIT
EXIT
NO TEMPERATURE CONTROL
INSPECT MODE
OPERATIONS DISABLED
Press EXIT to return to normal
operation
While the unit is in Inspect Mode the ALARM light will flash, and the
display will indicate that unit operation, including temperature
control, has been disabled.