Thermo King T- series User Manual

41
UNIT OPERATING INSTRUCTIONS PREMIUM HMI CONTROLLER
PRETRIP
A Pretrip Test verifies unit operation. This
display allows a Pretrip Test to be selected and
initiated by the operator. If the Pretrip Test is
entered with the unit shut down a Full Pretrip
Test with device amp checks will be performed.
If the Pretrip Test is entered with the unit
running in either diesel or electric mode a
Running Pretrip Test is performed, but the
device amps checks are not performed. Test
results are reported as PASS, CHECK or FAIL
when the Pretrip Test is completed. If an alarm
occurs during a Pretrip Test the alarm code will
be displayed as Pretrip Alarm XX, where XX is
the alarm code.
PRETRIP TEST CONDITIONS
• Current unit settings are saved and restored
at the end of the Pretrip Test or if the unit is
turned off and back on.
• Pretrip Test can be run in either Diesel or
Electric Mode.
• The unit will auto switch from Diesel Mode
to Electric Mode or from Electric Mode to
Diesel Mode during a Pretrip Test if these
features are enabled and the auto switch
conditions occur.
CONDITIONS WHERE PRETRIP TESTS
ARE NOT ALLOWED
• If any shutdown alarms are present. Pretrip
tests are allowed with some Check and Log
alarms.
• If the unit is in Sleep Mode.
• If the unit is in Service Test Mode, Interface
Board Test Mode or Evacuation Mode.
Pretrip Test Sequence
Pretrip tests proceed in the order shown below.
A Full Pretrip Test includes all tests. A
Running Pretrip Test is started with the engine
or motor running and does not include the Amp
Checks or Engine Start Check.
• Amp Checks - Each electrical control
component is energized and the current
drawn is confirmed as within specification.
• Engine Start - The Engine will start
automatically.
• Defrost - If the coil temperature is below 45
F (7 C), a defrost cycle is initiated.
• RPM Check - The engine RPM in high and
low speed is checked during the Cool Check.
• Cool Check - The ability of the unit to cool
in low speed is checked (each zone in
SPECTRUM).
• Heat Check - The ability of the unit to heat in
low speed is checked (each zone in
SPECTRUM).
• Report Test Results - The test results are
reported as PASS, CHECK or FAIL when
the Pretrip Test is completed. If test results
are CHECK or FAIL alarm codes will exist
to direct the technician to the source of the
problem.

Thermo King T- series Specifications

General

Refrigerant	R-404A
Voltage	12V/24V DC
Defrost	Electric or Hot Gas
Model	T-series
Cooling Capacity	Varies by model
Power Source	Diesel Engine or Electric
Temperature Range	-29°C to 24°C
Control System	Microprocessor-based
Fuel Tank Capacity	Varies by model
Dimensions	Varies by model
Weight	Varies by model