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Modular Environmental Control Unit (MECU)


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 130°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.

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MECU SPECIFICATIONS
Physical
  Dimensions/Weight Center of Gravity
Width 51.5 inches (130.8 cm) 27.4 inches
Depth 41.6 inches (105.6 cm) 25.0 inches
Height 31.6 inches (80.3 cm) 16.4 inches
Volume 39.2 ft3  
Weight MECU-410 660 lbs (299.4 kg) / MECU-290 653 lbs (296.2 kg)
Electrical Power
(208/230VAC, 50/60Hz.)
Cooling Mode
(125° F Ambient)
Heating Mode
(Electric Heat)
Power Requirements 13 kW 17.5 kW
Max. Running Amperage 40 Amps 45 Amps
Max. Inrush Current 200 Amps 80 Amps
Refrigerant MECU-410 MECU-290
Refrigerant Type R-410A R-290
Refrigerant Capacity 12 lbs 5.5 lbs
Performance
Cooling Capacity 60,000 Btu/hr
@ 125° F d.b. ambient temperature with return temperature of 90°F d.b./75°F w.b.
Heating Capacity One-Stage 6 kW (Set-point <80°F and return air temp >70°F)
Two-Stage 12 kW (Set-point >80°F or return air temp < 70°F)
Evaporator
Blower Capacity
2,000 SCFM airflow at 3” H20 head pressure

This product was developed under an SBIR contract.

Any Federal agency may procure these units at any time without further competition. The competition for SBIR Phase I and Phase II awards satisfies any competition requirement when processing Phase III awards. Therefore, an agency is not required to conduct another competition in order to satisfy any statutory provisions for competition. This is authorized under 10 U.S.C. 2304(b)(2) or 41 U.S.C. 253(b)(2). A separate J&A document is not required, pursuant to 10 U.S.C. 2304(b)(3) or 41 U.S.C 253(b)(3).