freightliner PX113064S T 2016, Manual

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Electric Refrigerant Compressor (eRC) : The
electric refrigerant compressor is the heart of the
cooling cycle. The cycle begins when the compressor
draws in cool, low-pressure refrigerant gas from
indoors. The motor-driven compressor’s sole function
is to squeeze the refrigerant, raising its temperature
and pressure so that it exits the compressor as a
hot, high-pressure gas.
3/2 Valve : The three by two valve has one inlet, and
two outlet options: A or B. It lets the coolant flow to
either the radiator or the active cooling or heating
modes.
Electric Air Compressor
The electric air compressor provides and maintains
air under pressure to operate devices in the air brake
system.
The Instrumentation Control Unit
(ICU) and Fault Codes
NOTE: Some non-critical faults may be
suppressed and will not appear during an
instrumentation control unit (ICU) self-check.
The majority of electrical and electronic issues on the
vehicle will have an associated fault code, which will
be displayed on the ICU.
If the ICU receives active fault codes during the ICU
self-check, it displays them one after the other until
the parking brake is released or the keyswtich is
turned off. Once the parking brake is completely
released, the ICU displays alerts until acknowledged.
If there are no active faults, the ICU displays the
home screen after the self-check completes.
When there is an active vehicle fault code, a popup
appears on the ICU message screen. See
Table 9.1
for a list of Acronyms used in fault codes for the ICU.
f080335 10/05/2021
1
2
3
4
5
6
1. Housing
2. EE Box
3. Outlet Manifold
4. Inlet Manifold
5. Gasket
6. Coolant Line
Fig. 9.2, High-Voltage Battery
f080383 12/17/2021
5
6 4 3 2 1
1. Cable
2. Cable Gland Retaining
Ring
3. Sealing Rubber
4. Shield Clip
5. Cable Gland
Connector Ring
6. Adapter Plate
Fig. 9.3, High-Voltage Cable
Electrical System
9.3