MECU (Modular ECU)Mainstream's MECU is designed to provide cooling, heating and ventilation to the Tent Extendable Modular Personnel (TEMPER), Modular General Purpose Tent System (MGPTS) or CP EMEDS shelters. A single MECU has sufficient capacity to provide thermal control to shelters as large as 1,000 square feet in ambient temperatures as high as 125°F or as low as - 40°F. The MECU allows for air plenum configuration and installation requirements without bends in the supply or return ducts. The MECU has been designed to replace both the FDECU, LECU and the IECU with a smaller cube, improved performance, reduced weight, improved power-factor and improved maintenance/reliability. Its design also exploits all of the benefits of using high-efficiency, environmentally-safe refrigerant. The MECU meets or exceeds all of the requirements for military shelter heating and cooling, and is compatible with current NBC protection equipment. To simplify troubleshooting and maintenance, the Mainstream MECU utilizes commercially-available modular relay-based controls. All wiring is clearly labeled, and all wiring harnesses are straightforward plug and play, requiring no complex connections, soldering, or assembly. Since the electrical control package has the test points localized inside a single control panel and uses no complex electronics, computer chips, or logic circuits, the entire electrical control package can be quickly and easily tested with only common maintenance tools such as a multi-meter and screw drivers. The wiring harnesses can easily be changed in the field without any hand tools except a screw driver to remove access panels. Likewise, the refrigeration circuit is accessible and easily serviceable. All plumbing runs are terminated with RotaLock® fittings, allowing any component to be quickly and easily changed with common hand tools. Brazing or soldering is never required. The MECU has been designed to support a mean-time-between-failure (MTBF) rate of 5202 hours and a 1-year continuous cyclical operation without critical failure (MTBCF) of 15,761 hours. Mainstream's MECU provides a 20-year storage life without performance degradation. Operational availability is at least 95%.
MECU
HECU (Hydrocarbon ECU)
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