Das - Data Acquisition System (Optional); Electric Standby (Model 50 Units Only); Standard Model 50 Features; Optional Model 50 Features - Thermo King T-1000R Series Maintenance Manual

Unit Description
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
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.
Electric Standby (Model 50
Units Only)
The Electric Standby option allows the unit to be
operated on either the diesel engine or external
electric power.
DANGER: High voltage AC power is present
whenever the unit is operating in the Electric
mode and whenever the unit is connected to
external standby power. Voltages of this
magnitude can be lethal. Exercise extreme
caution when working on the unit.

Standard Model 50 Features

The following features are standard equipment on
units equipped with Electric Standby.
Automatic Diesel/Electric Selection:
automatically switch to electric operation when a
power cord is connected and the standby power is
switched On.
The overload relay is
Overload Relay:
self-resetting.
Hot gas heat is utilized on all units.
Hot Gas Heat:
Automatic Phase Correction:
features two motor contactors. This allows correct
motor rotation regardless of phase rotation on the
incoming power.

Optional Model 50 Features

The following features are available as options on
units equipped with Electric Standby.
• Electric Heater Strips
24
® PC compatible
The unit will
The control system
• Auto Switching
Engine Compartment
Components
Coolant Expansion Tank:
temperature are monitored by the base controller.
If the coolant temperature becomes too high or the
level becomes too low, an alarm will occur.
The engine must have antifreeze protection to –30
F (–34 C). Check and add coolant in the
expansion tank as needed.
CAUTION: Do not remove expansion
tank cap while the coolant is hot.
CAUTION: Do not add Green or
Blue-Green coolants to cooling systems
that use Red Extended Life Coolants.
Use the engine oil dipstick to
Engine Oil Dipstick:
check the engine oil level.
Receiver Tank Sight Glass:
glass is used to assist in checking the amount of
refrigerant in the system.
Compressor Oil Sight Glass:
sight glass is used to check the relative level of
compressor oil in the compressor sump.

Unit Protection Devices

High Pressure Cutout Switch (HPCO):
normally closed switch monitors the discharge
pressure at the compressor. It opens on high
discharge pressure to shut the unit down to
prevent damage.
Low Pressure Cutout Switch (LPCO):
normally closed switch monitors the suction
pressure at the compressor. It opens on low
suction pressure to shut the unit down to prevent
damage. The LPCO is used on units equipped
with an SPR (Suction Pressure Regulator). It is
not used on units equipped with an ETV
(Electronic Throttling Valve).
Suction Pressure Regulator (SPR):
component is a mechanical control device used to
limit the suction pressure to the compressor. The
valve controls suction pressure based on the actual
system pressure. The SPR is not used if the unit is
equipped with an ETV.
The coolant level and
The receiver tank sight
The compressor oil
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