PTI (Pretrip) Tests
- Notice
- Cargo Loss
- The PTI tests should only be performed on an empty container.
Note Units equipped with a water-cooled condenser must
be set to operate on air-cooled condensing to perform a complete system
capacity test.
The MP-5000 controller contains special PTI pretrip tests that automatically checks unit refrigeration capacity, heating capacity, temperature control, and individual components including the controller display, contactors, fans, protection devices, and sensors. The test includes measurement of component power consumption and compares test results to expected values.
The Full PTI test takes up to 2 to 12 hours to complete, depending on the container and ambient temperature.
Note Correct
all existing alarm conditions and clear the alarm codes before performing
a Full PTI test. The controller will automatically clear all existing
alarms before beginning the Full PTI test.
The Brief PTI test takes about 25-30 minutes to complete, depending on the container and ambient temperature.
Note Detailed PTI test results are stored in the MP-5000
Data logger for later viewing. Any alarm codes recorded during the
test can be viewed through the controller’s Alarm List menu at the
end of the test.