Edit
HVAC

Modular Environmental Control Unit (MECU)

MECU_SWOOSH
Edit

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.

Edit
Physical
 Dimensions/WeightCenter of Gravity
Width51.5 inches (130.8 cm)27.4 inches
Depth41.6 inches (105.6 cm)25.0 inches
Height31.6 inches (80.3 cm)16.4 inches
Volume39.2 ft3 
WeightMECU-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 Requirements13 kW17.5 kW
Max. Running Amperage40 Amps45 Amps
Max. Inrush Current200 Amps80 Amps
RefrigerantMECU-410MECU-290
Refrigerant TypeR-410AR-290
Refrigerant Capacity12 lbs5.5 lbs
Performance
Cooling Capacity60,000 Btu/hr @ 125° F d.b. ambient temperature with return temperature of 90°F d.b./75°F w.b.
Heating CapacityOne-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 Capacity2,000 SCFM airflow at 3” H20 head pressure
Edit

MECU Brochure

Edit

Operating Hours: Monday – Friday 8:00 a.m. – 5:00 p.m. EST

Contact: Send us an email – militarysales@mainstream-engr.com
Phone:  321-631-3550

Edit
HVAC

Improved Environmental Control Unit (IECU)

IMGP8035_SIL_SWOOSH
36K_IMGP4257_SWOOSH
Edit

Mainstream’s modular Improved Environmental Control Units (IECUs) provide heating and cooling to troop shelters, containers, vehicles, and communications enclosures in ambient temperatures as high as 140°F and as low as -50°F. The IECU is available in three different nominal cooling capacities (9,000, 18,000 and 36,000 Btu/hr) with multiple power input options. Designed to replace legacy R-22 based ECUs, the IECU features improved energy efficiency, lighter weight, and easier maintenance. The IECU uses environmentally safe R-410A refrigerant and meets or exceeds all requirements for military heating and cooling.

  • Designed for Military Environment
  • Simple and intuitive control panel
  • No Training required for basic operation
  • Software upgradable PCB controller with battle-short capability
  • Removable remote provides for control at a convenient location
  • Designed for maintenance or repair with common hand tools from standard military tool kit.
  • Diagnostics Port allows complete troubleshooting with only a multimeter
  • Embedded diagnostics and 16 board-mounted LED indicators simplify maintenance
  • Plug and play modular components
  • Brazing/soldering not required during any maintenance procedure
  • All refrigerant components have threaded O-ring fittings that can be replaced with simple hand tools
  • Soft start device helps protect tactical power grids by limiting in rush current at start up.
  • EMI conducted and radiated emissions tested to MIL-461F
  • Designed for 20 year storage life
Edit
IECU SPECIFICATIONS
Model9K 115 VAC 1-Phase18K 230 VAC 1-Phase18K 208 VAC 3-Phase36K 208 VAC 3-Phase
Cooling (BTU/hr) @125F ambient9,38318,50619,20140,100
Heating (Watts)2,2004,5004,2009,000
Power (KW) @125F2.23.53.56.4
Weight (Lbs)134226208295
Edit

IECU Brochure

Edit

Operating Hours: Monday – Friday 8:00 a.m. – 5:00 p.m. EST

Contact: Send us an email – militarysales@mainstream-engr.com
Phone:  321-631-3550

Edit
HVAC

Enhanced Environmental Control Unit (E2CU)

E2CU_Tiedown-Views_071114_01_MATCH_SWOOSH
E2CU_GREEN_SIL_DSC0320_SWOOSH
Edit

The Enhanced Environmental Control Unit (E2CU) represents the latest in ultra-efficient, military ready, ducted unitary heat pump systems. It is designed to provide cooling, heating, and ventilation, and includes energy saving features such as compressor soft start, variable speed indoor blower, and microprocessor-based embedded diagnostics.  These units were designed to replace the FDECU, LECU, and the IECU while providing better performance, reduced weight, improved power factor, simplified maintenance and increased reliability.

Mainstream’s E2CU has features not found in typical military ECUs. These enhancements include:

  • Plug-n-play wire harnesses
  • Microchannel evaporator and condenser
  • Non-corrosive easily replaceable forklift base
  • Sheathed wire harnesses
  • Machine threads, not sheet metal screws
  • Embedded diagnostics with microgrid compatibility for communication and control
Edit
Physical36k60k
Width42 in (center of gravity 24 in)42 in (center of gravity 24 in)
Depth52 in (center of gravity 22 in)52 in (center of gravity 22 in)
Height33 in (center of gravity 15 in)33 in (center of gravity 15 in)
Volume43.8 ft343.8 ft3
Weight (Lbs)555 lbs622 lbs
Refrigerant TypeR410-AR410-A
Refrigerant Charge6.0 lbs8.7 lbs
Electrical36k60k
Voltage208 VAC, 60 Hz, 3ph (no neutral required)208 VAC, 60 Hz, 3ph (no neutral required)
Max Power<7 kW (all modes of operation, all conditions)<10 kW (all modes of operation, all conditions)
Max Amperage<20 amps (all modes of operation, all conditions)<30 amps (all modes of operation, all conditions)
Max Inrush Current<33 amps (all modes of operation, all conditions)<43 amps (all modes of operation, all conditions)
Performance36k60k
Military ConditionsAHRI ConditionsMilitary ConditionsAHRI Conditions
Cooling40,027 BTU/hr44,053 BTU/hr59,250 BTU/hr66,049 BTU/hr
Heat PumpN/A28,797 BTU/hrN/A 52,786 BTU/hr
Electric Resistance Heat21,160 BTU/hr30,717 BTU/hr
Edit

E2CU Brochure

Edit

Operating Hours: Monday – Friday 8:00 a.m. – 5:00 p.m. EST

Contact: Send us an email – militarysales@mainstream-engr.com
Phone:  321-631-3550