OM00017 Rev B, FP00066, FP00102 Operation Manual – March 24, 2023 Page 3 of 10
System Information
The T-38 Liquid Chiller Module (LCM-1400) is a chassis mounted cooling system. The LCM is the core of a
variable speed, vapor-compression chiller. When properly installed, the LCM uses vapor compressor
technology to cool a circulating coolant. The LCM consists of a compressor (with drive board),
condenser, over-pressure valve, filter dryer, expansion valve, evaporator, and fans.
Figure 1: LCM (FP00066, FP00102) Assembly (drive board and cable not shown)
Safety
The LCM contains Tetrafluoroethane (R-134a) as a refrigerant. R-134a is an approved long-term
replacement for CFC-based refrigerants and an approved ozone depleting substance (ODS) alternative.
In the event that the LCM is damaged, general work clothing, leather gloves, and eye protection should
be worn to prevent exposure to refrigerants. The LCM also contains Polyalkylene glycol (PAG) oil, which
is used by the compressor. Contact Aspen for the MSDS for either of these internal fluids.
Precautions relating to the personnel hazards regarding contact with this substance should be outlined
in training and technical manuals.
Disposal of R-134a must comply with federal, state, and local disposal or discharge laws.
WARNING! R-134A is subject to U.S. Environmental Protection Agency Clean Air Act
Regulations Section 608 in 40 CFR Part 82 regarding refrigerant recycling, therefore the
refrigerant must be evacuated from the LCM prior to disposal of the assembly.
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