Thermo King SLX-100 User manual

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English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Français . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Italiano . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Deutsch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Español. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Nederlands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Polski . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

ii

SLX-100, 200, 300, 400 and SLX Spectrum w/SR-2
TK 53232-2-OP (Rev. 4, 11/08)
En

2
TABLE OF CONTENTS
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Thermo Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
First Aid and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Refrigerant Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Refrigerant Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Auto Start/Stop Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CYCLE-SENTRY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electric Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermo King Smart Reefer 2 (SR-2) Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CYCLE-SENTRY Start/Stop Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Controller Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SR-2 Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Control Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Switching “On” the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
On/Off Master Isolator switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Changing the temperature Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Viewing Gauge Readings (Single Temperature) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Viewing Gauge Readings (SLX Spectrum). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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TABLE OF CONTENTS
Viewing temperature Sensor Readings (Single Temperature) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Viewing temperature Sensor Readings (SLX Spectrum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Locking the Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Navigating the Operator Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pre-Trip Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Inspecting the Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Enroute Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Inspection and Service schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warranty Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Engine TK 486V (SLX Spectrum, SLX-100, SLX-200, SLX-300, SLX-400) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrical Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Belt Tension (using tool No. 204-1903). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electric Motor (Model 50) (200V option Available) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Standby Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Safety Decals and Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Serial Number Decals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Declarations of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Declaration of Conformity With EC Directive 2000/14/EC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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INTRODUCTION
INTRODUCTION
GENERAL INFORMATION
This manual is published for informational
purposes only and the information being
furnished herein should not be considered as
all-inclusive or meant to cover all
contingencies. If further information is
required, consult your Thermo King Service
Directory for the location and telephone
number of the local dealer.
All service requirements, major and minor,
should be handled by a Thermo King dealer.
Performing pre-trip checks and enroute
inspections on a regular basis will minimize
on-the-road operating problems. A closely
followed maintenance program will also help
keep your unit in top operating condition (see
the “Maintenance Inspection Schedule” in this
manual).
THERMO ASSISTANCE
Thermo Assistance is a multi-lingual
communication tool designed to put you in
direct contact with an authorized Thermo King
dealer should you require one.
To use this system, you need the following
information before you call:
• Contact Phone Number
• Type of TK Unit
• Thermostat Setting
• Present Load Temperature
• Probable Cause of Fault
• Warranty Details of the Unit
• Payment Details for the Repair
Refer to the Thermo King Service Directory.
Leave your name and contact number and a
Thermo Assistance Operator will call you back.
At this point you can give details of the service
required and the repair will be organized.
Please note that Thermo Assistance cannot
guarantee payments and the service is designed
for the exclusive use of refrigerated
transporters with products manufactured by
Thermo King Corporation.
BEA261
DISCLAIMER
The manufacturer, Thermo King Corporation,
assumes no responsibility for any act or action
taken on the part of the owner or operator in
the repair or operation of the products covered
by this manual that are contrary to the
manufacturer’s printed instructions. No
warranties expressed or implied, including
warranties arising from cause of dealing or
usage or trade, are made regarding the
information, recommendations, and
description contained herein. The
manufacturer is not responsible and will not
be held liable in contract or in tort (including
negligence) for any special, indirect or
consequential damages, including injury or
damage caused to vehicles, contents or
persons, by reason of the installation of any
Thermo King product, its mechanical failure
or the failure of owner/operator to heed
caution and safety decals strategically located
on the product.

5
FIRST AID AND SAFETY
FIRST AID AND SAFETY
REFRIGERANT
EYES
Immediately flush eyes with large amounts of
water and get prompt medical attention.
SKIN
Take off contaminated clothing. Flush area with
large amounts of warm water. Do not apply
heat. Wrap burns with dry, sterile, bulky
dressing to protect from infection/injury and
get medical attention.
INHALATION
Move victim to a fresh air location and restore
breathing if necessary. Stay with them until the
arrival of emergency medical personnel.
REFRIGERANT OIL
EYES
Immediately flush eyes with large amounts of
water for at least 15 minutes while holding the
eyelids open. Get prompt medical attention.
SKIN
Remove any contaminated clothing. Wash
thoroughly with soap and water. Get medical
attention if irritation persists.
INHALATION
Move victim to a fresh air location and restore
breathing if necessary. Stay with them until
arrival of emergency personnel.
INGESTION
Do not induce vomiting. Contact local poison
control centre or physician immediately.
REFRIGERANT INFORMATION
Always observe caution when working with
refrigerants and in areas where they are being
used.
Fluorocarbon refrigerants evaporate rapidly,
freezing anything that they come in contact
with if accidentally released to the atmosphere
from their liquid state.
Refrigerants may produce toxic gases which, in
the presence of an open flame or electrical
short, can become severe respiratory irritants
which can be fatal.
Refrigerants displace air and can cause oxygen
depletion which could result in death by
suffocation. Observe caution at all times when
working with or around refrigerant, or air
conditioning systems which contain refrigerant,
especially in enclosed or confined areas.
RECOVER REFRIGERANT
At Thermo King we recognize the need to
preserve the environment and limit the
potential harm to the ozone layer that can
result from allowing refrigerant to escape into
the atmosphere. We strictly adhere to a policy
that promotes the recovery and limits the loss
of refrigerant into the atmosphere.

6
FIRST AID AND SAFETY
SAFETY PRECAUTIONS
Thermo King recommends all services be
performed by a Thermo King dealer. However,
there are several general safety practices which
you should be aware of:
1. Always wear safety glasses when working
with or around the refrigeration system or
battery.
Refrigerant or battery acid can cause
permanent damage if it comes in contact
with your eyes.
2. Never operate the unit with the compressor
discharge valve closed.
3. Always keep your hands and loose clothing
clear of fans and belts when unit is running
or when opening or closing compressor
service valves.
4. Always use extreme caution if you ever have
occasion to drill holes in your unit. This
could weaken structural components.
Drilling into electrical wiring or refrigerant
lines could cause a fire.
5. All service work on evaporator or condenser
coils be completed by a certified Thermo
King technician. If you ever do have
occasion to be working around the coils, use
extreme caution as exposed coil fins could
cause painful lacerations.
AUTO START/STOP OPERATION
This unit may start up at any time without prior
warning.
CYCLE-SENTRY
If your unit is equipped for CYCLE-SENTRY
operation, the unit may start automatically at
any time when the unit is turned on and the
CYCLE-SENTRY is selected.
ELECTRIC STANDBY
On Model 50 units, the unit may start
automatically at any time when the unit is
switched on, connected to live electric power
and/or the Electric operation is selected.
Be sure to switch the unit off before opening
the doors or inspecting any part of the unit.
ELECTRICAL HAZARD
Units with electric operation or electric standby
present a potential electrical hazard. Always
disconnect the high voltage power cable before
working on the unit.
WARNING!
A battery can be dangerous. A battery
contains a flammable gas that can ignite or
explode. A battery stores enough electricity
to burn you if it discharges quickly. A
battery contains battery acid that can burn
you. Always wear goggles or safety glasses
and personal protective equipment when
working with a battery. If you get battery
acid on you, immediately flush it with water
and medical attention.
WARNING!
Electric welding generates high amperage
currents which can damage electrical and
electronic components. To minimize
damage, prior to any welding operation on
the vehicle, the microprocessor and unit
battery must be electrically disconnected
from the vehicle. Switch the Microprocessor
On/Off switch to Off. Remove the negative
battery cable. Remove all connectors from
the rear of the microprocessor. Close the
control box. Connect the welder ground
cable as close as possible to the area being
welded. When welding is completed,
remove the welder ground cable. Reconnect
the cables to the rear of the
microprocessor. Reattach the negative
battery cable. Switch the microprocessor
On/Off switch to On. Reset all alarms and
codes to previous settings. Run a full
Pretrip. A detailed procedure may be found
in Thermo King Service Procedure A26A.

7
UNIT DESCRIPTION
UNIT DESCRIPTION
GENERAL INFORMATION
The Thermo King SLX models are one piece,
self-contained, diesel powered cooling/ heating
units operating under the control of a Smart
Reefer 2 (SR-2) programmable microprocessor
controller. The units mount on the front of the
trailer with the evaporator extending through an
opening in the front wall.
There are models:
• SLX-100, 200 and 400 Model 30: Cooling
and heating on diesel engine operation.
• SLX-100, 200, and 400 Model 50: Cooling
and heating on diesel engine or electric
motor operation.
• SLX Spectrum 30: Multiple trailer
compartment cooling and heating on diesel
engine operation.
• SLX Spectrum 50: Multiple trailer
compartment cooling and heating on diesel
or electric motor operation.
During diesel engine operation, the unit will
operate in one of the following modes
depending on the air temperature in the trailer,
as sensed by the microprocessor controller:
Continuous Run Operation
• High Speed Cool
• Low Speed Cool
• Low Speed Modulated Cool (if equipped
with Modulation)
• Low Speed Modulated Heat (if equipped
with Modulation)
• Low Speed Heat
• High Speed Heat
•Defrost
CYCLE-SENTRY Operation (Optional)
• High Speed Cool
• Low Speed Cool
• Null (Engine Off)
• Low Speed Heat
• High Speed Heat
•Defrost
Generally, the unit will operate in low speed,
switching back and forth from cooling to
heating as necessary.
On very hot days, with the setpoint at a low
temperature, the unit may cycle between high
speed cool and low speed cool without
switching into a heating cycle.
Likewise, on very cold days, the unit may cycle
between high speed heat and low speed heat.
The unit may switch into cooling for short
periods of time.
During Standby electric operation, the Model
50 units operate in one of the following modes
to maintain the trailer temperature:
• Cool
• Motor Off
•Heat
•Defrost

8
UNIT DESCRIPTION
THERMO KING SMART REEFER 2
(SR-2) CONTROLLER
Your SLX unit uses the SR-2 control system to
operate cooling, heating, and defrost functions.
SR-2 - SLX Single-Temperature
SR-2 - SLX Spectrum
See Controller Description on page 9 for more
information about SR-2 controller.
CYCLE-SENTRY START/STOP
CONTROLS
The CYCLE-SENTRY system automatically
starts up the unit when heating or cooling is
required and shuts it off when the cargo box
temperature reaches the controller setpoint.
The CYCLE-SENTRY system also maintains
engine temperature by restarting the unit if the
engine block temperature drops below -1°C. It
runs until the controller demand is satisfied and
the engine block temperature reaches 32°C.
CYCLE-SENTRY is designed for use only
with products which do not require tight
temperature control or continuous airflow, such
as all deep frozen products and non-perishable
non-frozen products.
The start/stop nature of CYCLE-SENTRY does
not satisfy the temperature control or airflow
requirements for perishable or temperature
sensitive products. Thermo King therefore does
NOT recommend the use of CYCLE-SENTRY
control for these products.
DEFROST
As the unit is operated to cool the trailer, frost
will gradually build up on the evaporator coils.
Periodically this frost must be melted to
prevent loss of cooling and airflow.
MODULATION
Systems equipped with modulation can provide
precise temperature control of fresh products.
This can reduce product dehydration, increase
product shelf life and protect fresh products
from freeze damage.
BEA233
OFF
ON
MENU
35 .
8
35
ZONE 2ZONE 1
TEMP C
SET
POINT
-8 .
2
-10
CONTINUOUS
ARA798

9
CONTROLLER DESCRIPTION
CONTROLLER DESCRIPTION
SR-2 CONTROLLER
The microprocessor on/off switch must be placed in the Off position ("0/
OFF" Key) before:
• Any inspection, maintenance or service operation is performed on the
unit.
• The unit is placed in a location where a start-up would be undesirable
(for example a confined area).
The ON/OFF Master Isolator Switch supplies or removes electrical
power to the microprocessor. It is located above engine inside unit. (See
following page for more details)
STANDARD DISPLAY
The Standard Display shows the box temperature and setpoint. The top of
the display shows the unit is operating in either CYCLE-SENTRY or
Continuous Run mode.
The Standard Display defaults to the Temperature Watch Display after
about 2-1/2 minutes of non-use. The Temperature Watch Display shows
the same box temperature and setpoint but in larger fonts.
SLX SINGLE-TEMPERATURE SR-2 CONTROLLER DISPLAY
WARNING!
This unit is capable of automatic operation
and could start at any time.
1. Data Connection Port
2. Printer Port
3. Defrost Key (Dedicated Key)
4. Cycle Sentry/Continuous Run
5. Off Key (Dedicated Key)
6. On Key (Dedicated Key)
7. Soft Keys
1
2
3
4
7
BEN002
56

10
CONTROLLER DESCRIPTION
SLX SPECTRUM SR-2 CONTROLLER DISPLAY
1. Continuous Mode
2. Box Temperature (Zone 1)
3. Setpoint (Zone 1)
4. Cooling (Zone 1)
5. Zone 1 Soft Key
6. Zone 2 Soft Key
7. Menu Soft Key
8. Zone 2 Display
OFF
ON
MENU
35 .8
35
ZONE 2ZONE 1
TEMP C
SET
POINT
-8 .2
-10
CONTINUOUS
ARA798
2
4
3
5 6 7
1 8

11
CONTROLLER DESCRIPTION
CONTROL KEYS
SWITCHING “ON” THE UNIT
1. On/Off Master Isolator Switch must be ON.
2. Press the I/ON Microprocessor key for 1
second.
3. Unit is switched “on”.
ON/OFF MASTER ISOLATOR SWITCH
On/Off Master Isolator Switch is located above
engine inside the unit. The switch is normally
left in On position.
On/Off Master Isolator Switch
CHANGING THE TEMPERATURE
SETPOINT
To change the setpoint complete the following
steps:
1. Press the SETPOINT soft key on the
Standard Display. The CURRENT
SETPOINT Screen will appear.
2. Press the + or - soft keys to change the
setpoint reading.
3. Press the YES or NO soft key accordingly.
– If the NO key is pressed the setpoint
change made with the “+” or “-” soft keys
will not be accepted, the setpoint will not
be changed and the display will return to
the Standard Display.
– If the YES soft key was pressed, the
setpoint change made with the “+” or “-”
soft keys will be accepted.
4. The PROGRAMMING NEW SETPOINT
Screen will appear.
5. The Standard Display appears with setpoint
changed to the new setpoint.
Note: For SLX Spectrum the soft key under
each zone allows the Setpoint for that zone to
be changed. In addition, the soft key under
Zone 2 is used to turn that zone on and off.
The soft key labeled MENU allows the Main
Menu to be selected.
On Key Turns the unit on.
(hold button 1 second)
Off Key Turns the unit off.
Defrost Key Initiates a Manual
Defrost
Mode Key Switches the unit
between the CYCLE-SENTRY
and Continuous Run modes.
Soft Keys The four soft keys are
multi-purpose keys. Their
function changes depending on
the operation being performed. If
a soft key is active, it’s function
will be shown in the display
directly above the key.

12
CONTROLLER DESCRIPTION
VIEWING GAUGE READINGS (SINGLE
TEMPERATURE)
Use the following steps to view miscellaneous
gauge readings:
1. Press the GAUGES soft key from the
Standard Display.
2. Press BACK or NEXT soft keys to scroll
through the gauge screens. If no keys are
pressed within 30 seconds, the screen will
return to the standard display.
3. Press the LOCK soft key to display any
Gauge Screen for an indefinite period. Press
the key again to unlock the screen.
4. Press the EXIT soft key to return to the
Standard Display.
VIEWING GAUGE READINGS
(SLX SPECTRUM)
Unit Gauges and I/O (Input/Output) State are
viewed using the Gauges Menu as follows:
1. Begin at the Standard Display.
If the Temperature Watch Display is
showing, press any soft key to return to the
Standard Display.
2. Press the MENU soft key on the Standard
Display.
3. Press the NEXT soft key until the Gauges
Menu appears.
4. Press the SELECT soft key to enter the
Gauges Menu.
5. Press the BACK or NEXT soft keys to scroll
through the following gauges.
• Coolant Temperature
• Coolant Level
•Amps
• Battery Voltage
• Engine RPM
• Fuel Level Sensor
• Discharge Pressure
• Suction Pressure
• I/O (Input/Output State) - Displays the
current state of the input/output devices.
Note: Selecting I/O (Input/Output State)
enters a group of screens that show the
current state of the input/output devices.
6. Press the LOCK soft key to display any
Gauge Screen for 15 minutes. Press the key
again to unlock the screen.
7. Press the EXIT soft key to return to the
Standard Display. If no keys are pressed
within 30 seconds, the screen will return to
the Standard Display.
VIEWING TEMPERATURE SENSOR
READINGS (SINGLE TEMPERATURE)
Use the following steps to view miscellaneous
sensor readings:
1. Press the SENSOR soft key from the
Standard Display.
2. Press the BACK or NEXT soft keys to scroll
through the sensor screens. If no keys are
pressed within 30 seconds, the screen will
return to the Standard Display.
3. Press the LOCK soft key to display any
sensor screen for an indefinite period. Press
the key again to unlock the screen.
4. Press the EXIT soft key to return to the
Standard Display.
VIEWING TEMPERATURE SENSOR
READINGS (SLX SPECTRUM)
Use the following steps to view the sensor
readings.
1. Begin at the Standard Display.
If the Temperature Watch Display is

13
CONTROLLER DESCRIPTION
showing, press any soft key to return to the
Standard Display.
2. Press the MENU soft key on the Standard
Display.
3. Press the NEXT soft key until the Sensors
Menu appears.
4. Press the SELECT soft key to enter the
Sensors Menu.
5. Press the BACK or NEXT soft keys to scroll
through the sensor screens. Only configured
and enabled sensors are shown. For example,
if the unit is configured as a two zone unit,
then Zone 3 sensors are not shown. If the
CargoWatch sensors are not enabled, they
will not be shown.
6. Press the LOCK soft key to display any
sensor screen for an indefinite period. Press
the key again to unlock the screen.
7. Press the EXIT soft key to return to the
Standard Display. If no keys are pressed
within 30 seconds, the screen will return to
the Standard Display
LOCKING THE KEYPAD
Use the following steps to lock the keypad:
1. Press the MENU soft key from the Standard
Display.
2. Press NEXT and BACK soft keys to scroll to
the Mode menu.
3. Press the KEYPAD LOCKOUT soft key.
4. Confirm the keypad lockout by pressing
either the YES or NO soft key.
5. Pressing any key for 10 seconds will unlock
the keypad.
NAVIGATING THE OPERATOR MENU
The Operator Menu contains nine individual
menu areas that allow the operator to view
information and modify unit operation. Use the
following steps to access these menu areas:
1. Press the MENU soft key from the Standard
Display.
2. Press NEXT and BACK soft keys to scroll
up or down through the nine main menu
areas.
3. Press the SELECT soft key to access a
specific menu area when shown on the
display screen.
4. Press the EXIT soft key to return to the
Standard Display.
Operator Menu Choices
Language Reset Immediate change of an
alternate language:
Soft Keys
1. Press the SET POINT soft key and the
MENU soft key on the Standard Display at
the same time for 5 second.
2. The “NEW LANGUAGE WILL BE” Screen
will appear.
3. Press the + or - soft keys to select the desired
language.
4. When the desired language is shown, press
the YES soft key to confirm the choice.
5. The “PROGRAMMING
LANGUAGE-PLEASE WAIT” Screen
briefly appears.
6. The “LANGUAGE SELECTED IS XXX”
Screen briefly appears.
7. Press the EXIT soft key to return to the
Standard Display.
BEA233

14
CONTROLLER DESCRIPTION
Alarms Menu
If a unit alarm condition occurs the large Alarm
Icon will appear on the Standard Display.
If an alarm specific to a zone occurs, then a
small zone alarm icon will appear next to the
affected zone as well. Both Alarm Icons will be
present.
Alarms are viewed and cleared using the Alarm
Menu as follows:
1. Start at the Standard Display.
2. Press the MENU soft key on the Standard
Display.
3. Press the NEXT soft key until the Alarm
Menu appears.
4. Press the SELECT soft key. The Alarm
Display will appear.
5. If no alarms are present, the “NO ALARMS”
Screen is shown. Press the EXIT soft key to
return to the Standard Display.
6. If alarms are present, the quantity of alarms
and the most recent alarm code number will
be shown. If there is more than one alarm,
press the NEXT soft key to view each alarm.
N.B. To clear an alarm of this kind, you
must contact your dealer.
7. If a serious alarm occurs, the unit will be
shut down to prevent damage to the unit or
the load. If this occurs, the display will show
that the unit is shut down and display the
alarm code that caused the shutdown.
8. To clear an alarm press the CLEAR soft key.
Datalogger Menu Allows the operator to view
the datalogger displays. A “START OF TRIP”
places a marker in the datalogger memory. A
Start Of Trip can be initiated through the use of
WinTrac datalogging software, or manually in
the field.
1. Press the MENU soft key on the Standard
Display.
2. Press the BACK and NEXT soft keys as
required to show the Datalogger Menu.
3. Press the Select soft key on the Datalogger
Menu. The “START OF TRIP” Screen will
appear.
4. Press the Selections key. The “START OF
TRIP” Screen will appear.
5. Press the SELECT soft key to initiate a start
of trip.
6. A Start Of Trip Marker has been inserted into
the datalogger memory.
Pretrip Start a Pretrip as follows:
1. Press the MENU soft key on the Standard
Display.
2. Press the BACK and NEXT soft keys as
required to show the Pretrip Screen.
3. Press the SELECT soft key to start a Pretrip.
4. A Full Pretrip will be initiated if the unit is
not running. If the unit is running in either
Diesel or Electric mode a Running Pretrip
will be performed.
5. The Pretrip display appears. The top line of
the display indicates the unit is performing
the non-running Pretrip. Test progress is
measured by the number of tests completed
out of a total of 49. The soft keys may be
used during the Pretrip Test to select the
Hourmeter, Gauge or Sensor menus.

15
CONTROLLER DESCRIPTION
6. Turn the unit off to stop a Pretrip Test at any
time. This will generate Alarm Code 28–
Pretrip Abort. Other alarm codes may also be
generated. This is normal when the Pretrip
test is halted before completion.
7. When all tests are complete, the results are
reported as “PASS”, “CHECK” or “FAIL”. If
the results are Check or Fail, the
accompanying alarm codes will direct the
technician to the cause of the problem.
8. When the non-running test are complete the
unit will start automatically and continue
with the Running Pretrip Test.
9. If the Pretrip Test results are Check or Fail
the problem should be diagnosed and
corrected before the unit is released for
service.
Hourmeters Menu Hourmeters can be viewed
in the Hourmeters Menu as follows:
1. Press the MENU soft key on the Standard
Display.
2. Press the NEXT and BACK soft keys as
required to show the Hourmeters Menu.
3. Press the SELECT soft key to enter the
Hourmeters Menu.
4. Press the NEXT and BACK soft keys to
view the hourmeter displays.
Mode Menu Operating modes between
CYCLE-SENTRY mode and Continuous Run
mode as follows:
1. Press the dedicated Cycle Sentry/Continuous
key. (See “SLX Single-temperature SR-2
Controller Display” on page 9.)
2. Press the NEXT and BACK soft keys as
required to show the Mode Menu.
3. Press SELECT soft key to enter the Mode
Menu.
4. Press the SELECT soft key, to switch
between modes.
5. The new mode is then confirmed for 10
seconds. The display then returns to the
Mode Menu. Press the SELECT soft key
again to change the mode again.
Electric Standby/Diesel Mode Select Electric
Standby/Diesel Mode as follows:
1. Press the MENU soft key on the Standard
Display.
2. Press the NEXT soft key as required to
display the Electric Standby/Diesel Mode
Screen.
3. Press the SELECT soft key to select the
mode shown on the display.
Adjust Brightness Allows the operator to
adjust the display intensity as follows:
1. Press the MENU soft key on the Standard
Display.
2. Press the BACK and NEXT soft keys as
required to show the Adjust Brightness
Menu.
3. Press the + or - soft keys to select the desired
brightness.
4. Press the YES soft key to enter the new
brightness level.
5. The selected level appears on the screen.
6. The Adjust Brightness Main Menu Screen
reappears and if no keys are pressed the
Standard Display appears.
Time Allows the operator to view the Time and
Date. The Time is displayed in 24 hour military
time.
1. Press the MENU soft key on the Standard
Display.
2. Press the NEXT soft key until the Time
Display appears.
3. Press the SELECT soft key to view the time
and date.

16
CARE AND MAINTENANCE
CARE AND MAINTENANCE
PRE-TRIP INSPECTION
Pre-trip inspections are essential to minimize
operating problems and breakdowns, and must
be performed before every trip involving
refrigerated cargo.
1. Diesel Fuel
Must be sufficient diesel fuel to guarantee
engine operation to the next check point.
2. Engine Oil
Should be at the FULL mark. Never overfill.
3. Coolant
The indicator should be in the FULL (white)
range. If the coolant level is in the ADD (red)
range, add coolant to the expansion tank.
Coolant should be a 50/50 mixture of ethylene
glycol and water to provide protection to
-34°C.
4. Battery
The terminals must be tight and free of all
corrosion. Electrolyte should be at full mark.
5. Belts
The belts must be in good condition.
Tensioning is automatic. Do not attempt to
adjust.
6. Electrical
Ensure all electrical connections are securely
fastened. Wires and terminals should be free of
corrosion, cracks or moisture.
7. Structural
Visually inspect the unit for leaks, loose or
broken parts and other damage.
8. Gasket
The unit mounting gasket should be tightly
compressed and in good condition.
9. Coils
Ensure condenser and evaporator coils are
clean and free of debris.
10. Cargo Box
Inspect the interior and exterior of the trailer for
damage. Any damage to the walls or insulation
must be repaired.
11. Damper Door
The damper door in the evaporator air outlet
must move freely with no sticking or binding.
12. Defrost Drains
Check the defrost drain hoses and fittings to
ensure they are open.
13. Trailer Doors
Ensure doors and weather seals are in good
condition, doors latch securely and weather
seals fit tightly.
14. Remote Evaporators (SLX Spectrum)
• Visually inspect Evaporator(s) for damaged,
loose, or broken parts.
• Check also for refrigerant leaks.
• Check Defrost initiation and termination
(including defrost timer) by activating/
initiating a manual defrost.
LOADING
GENERAL INFORMATION
1. Inspect the trailer for proper insulation.
2. Ensure all door seals are tightly sealed with
no air leakage.
3. Inspect the trailer inside and out for damaged
or loose doors or skin.
4. On the inside, look for damaged walls or
floor, air ducts and clogged defrost drain
tubes.
5. Pre-cool the trailer as to desired setpoint.
6. Ensure loads are at correct carrying
temperature when you pick them up. Note
any variance.
7. Supervise loading of the product to assure
sufficient air space around and through the
load so as not to restrict air flow.
CAUTION!
Do not remove the expansion tank cap
while the coolant is hot.

17
CARE AND MAINTENANCE
INSPECTING THE LOAD
Always inspect load prior to departure.
1. Ensure unit is off before opening the trailer
doors. Otherwise refrigerated air is expelled
hot air drawn in. The unit may be run with
the doors open if the trailer is properly
backed into a refrigerated warehouse.
2. Perform final external and internal load
temperature checks. Note any irregularities
on the manifest.
3. Ensure cargo is not blocking the evaporator
inlets and outlets and that ample circulation
space has been provided around the load.
4. Ensure trailer doors are securely locked.
5. Ensure controller setpoint is at the desired
temperature.
6. If the unit was stopped, restart using the
starting procedures outlined in this manual.
7. Repeat the After Start Inspection.
8. Defrost the unit one half-hour after loading
by selecting the Manual Defrost. The Defrost
cycle terminates automatically.
ENROUTE INSPECTIONS
1. Carry out an inspection every four hours of
operation.
2. Note controller setpoint to ensure setting is
unaltered since picking up the load.
3. Note the return air temperature, it should be
+/- 4°C of the controller setpoint.
If the temperature reading is not +/- 4°C of
the controller setpoint, keep the unit running
for 15 minutes and re-check the temperature.
Wait 15 minutes more and if the temperature
is still out of range, contact a Thermo King
dealer for service.
4. We recommend you record the return air
temperature reading each time you check the
unit. This is important information if you
need service later on.
Notes: If cargo temperature is too high it could
indicate:
• Evaporator is plugged with frost in which
case standard defrosting procedure is needed
or there is improper air circulation within the
cargo area.
Inspect the unit to determine if the
evaporator fan is working and circulating the
usual amount of air. Poor circulation could
be caused by:
– Fan belt slipping or damaged. (Have the
fan belt checked by a qualified mechanic.)
– Defrost damper Door damaged and stuck
in closed position.
– Improper loading of product in trailer or
load shifting in transit so that there are
restricted air passages around and through
the load.
– Unit may have a low refrigerant charge. If
you cannot see a liquid level in receiver
tank sight glass with the unit running in
COOL, it is an indication that the charge
may be low.
It is advisable that any of the above mentioned
problems found during your enroute inspection
be referred to the nearest authorized Thermo
King dealer as quickly as possible. Check your
service directory for phone number and
location.

18
CARE AND MAINTENANCE
INSPECTION AND SERVICE SCHEDULES
To ensure that your Thermo King unit operates reliably and economically over its full life, and to avoid limiting its warranty cover, the appropriate
inspection and service schedule must be followed. Inspection and Service intervals are determined by the number of unit operating hours and by the
age of the unit. Examples are shown in the table below. Your Dealer will prepare a schedule to suit your specific needs.
SERVICE RECORD
Each inspection and service performed should be recorded on the Service Record Sheet found at the back of this Manual
WARRANTY INSPECTION
Your Thermo King Dealer must inspect your unit, before the end of the first year of operation.This is so that your second year of warranty cover can be
activated. Your Dealer will arrange for this inspection to coincide with a scheduled inspection or service event. This is illustrated in the table above.
Operating hours per year 1000 2000 3000
Inspection 6 months/ 500 hours
Inspection 12 months/ 1000 hours
(+ warranty Inspection)
6 months/ 1000 hours 4 months/ 1000 hours
Inspection 18 months/ 1500 hours 12 months/ 2000 hours
(+ warranty Inspection)
8 months/ 2000 hours
Full Service 24 months/ 2000 hours 18 months/ 3000 hours 12 months/ 3000 hours
(+ warranty Inspection)
(continue as above) (continue as above) (continue as above)