Unit Description
24
Mechanics HMI Control Panel
The Mechanics HMI Control Panel is available as
a hand held diagnostic tool. It is used on units
with a Standard HMI Control Panel if it is
necessary to access the Maintenance Menu or the
Guarded Access Menu to service the unit. Refer to
the SR-3 Truck Single Temp Diagnostic Manual
TK 55208 for more information about the
Mechanics HMI Control Panel.
NOTE: The Mechanics HMI Control Panel and
the Premium HMI Control Panel look the same
and have the same functionality. The Mechanics
HMI Control Panel is enclosed in a protective
housing.
Figure 2: Mechanics/Premium HMI Control Panel
Premium HMI Control Panel
(Optional)
The Premium HMI Control Panel is available as
an option that replaces the Standard HMI Control
Panel. It is used operate the unit and display unit
information. It also provides access to all the
controller functions and menus. Refer to the SR-3
Truck Single Temp Diagnostic Manual TK 55208
for more information about the Premium HMI
Control Panel.
CYCLE-SENTRY
TM
Start/Stop
System
The CYCLE-SENTRY Start/Stop fuel saving
system provides optimum operating economy.
The CYCLE-SENTRY system automatically
starts the unit on microprocessor demand and
shuts down the unit when all demands are
satisfied.
The system monitors and maintains the
compartment temperature, the engine block
temperature, and battery charge levels at a point
where quick, easy starts are possible.
Defrost
Frost will gradually build up on the evaporator
coils as a result of normal operation. Periodically
this frost must be melted to prevent a loss of
cooling and airflow.
Defrost is accomplished by passing hot refrigerant
gas through the evaporator coil, thus melting the
frost (or ice). Melted frost drains out of the unit
onto the ground through the drain tubes. The
defrost damper closes during defrost to prevent
warm air from entering the cargo area. The
optional electric heater strips are also energized in
defrost during electric standby operation.
Defrost can be initiated at any time the evaporator
coil temperature is below 42 F (5.5 C).
There are two methods of defrost initiation:
SR-3 Microprocessor Controller:
The
Microprocessor Controller is programmed to
automatically initiate timed and forced defrost
cycles. The SR-3 uses temperature sensors to
determine if forced defrost is required.
Manual Defrost:
Manual Defrost allows the
operator to initiate a defrost cycle by pressing the
D
EFROST
key. See “Initiating a Manual Defrost
Cycle.”
DAS - Data Acquisition System
(Optional)
The DAS (Data Acquisition System) monitors and
records the temperatures of (up to) six additional
sensors. The sensors are independent from the
microprocessor controller and are normally
located in the truck box to monitor load
temperatures. DAS data can be downloaded
through a serial port to an IBM
®
PC compatible
computer. WinTrac™ 4.0 (or higher) software is
used to view and analyze the data. Brief reports
can be printed on a microprinter connected to the
serial port.
WARNING: Turn the unit off by pressing
the
OFF
key before opening doors or
inspecting any part of the unit. The unit can
start at any time without warning if it has
been turned on by pressing the
ON
key.
Summary of Contents for T-1080S
Page 102: ...Engine Maintenance 101 Figure 182 Fuel and Oil System Components ...
Page 182: ...Index 181 Unit Options 23 W wiring 79 wiring diagrams index 182 ...
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