US Lab IATCS Hardware and Software Integration Development Test

The International Space Station (ISS) Internal Active Thermal Control System (IATCS) performance has been studied during the Hardware/Software Integration (HSI) Brassboard Development Testing. The ITCS Brassboard Development Test was built to verify the flight Thermal Control System performance and control. This paper describes the key results obtained with the flight like Pump Package Assembly, System Flow Control Assembly, Loop Cross-over Assembly, and Three Way Mixing Valve embedded in development hardware driven by flight software operated on a Functional Equivalent Unit Multiplexer-Demultiplexer (MDM).