Enhanced Environmental Control Unit (E2CU)


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
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
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)
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

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