The subsystem was designed with electronic control and monitoring instrumentation to regulate performance, analyze and display performance trends, and detect and isolate faults. The control and monitoring functions were physically separated by housing the respective circuits in separate enclosures.nGround Support Accessories (GSA) were included to provide electrical power, pro¬cess fluids, heat removal and parametric data displays allowing real time indica¬tion of operating status in engineering units.nA self-contained, Oxidizable Contaminant Removal Subsystem (OCRS) was designed, fabricated, tested and incorporated into the six-man CO2 concentrator's GSA to eliminate trace contaminants from the process air although the major portion of the endurance test was completed, as requested by the National Aeronautics and Space Administration (NASA), with the OCRS turned off.nA Product Assurance Program incorporated Quality Assurance, Reliability, Maintain¬ability, Safety and Material Conformance. Activities included conducting a Design Review Meeting and preparing a Failure Mode Effects and Criticality Analysis (FMECA), a Fault Detection and Isolation Analysis (FDIA), a Single Point Failure Analysis (SPFA), a Safety Hazard Analysis (SHA), and Nonmetallic and Metallic Materials Lists.
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