- Modular Environmental Control Unit (MECU)
- Improved Environmental Control Unit (IECU)
- Enhanced Environmental Control Units (E2CU)
HVAC
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.
| 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 | |
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
HVAC
Improved Environmental Control Unit (IECU)
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
| Model | 9K 115 VAC 1-Phase | 18K 230 VAC 1-Phase | 18K 208 VAC 3-Phase | 36K 208 VAC 3-Phase |
|---|---|---|---|---|
| Cooling (BTU/hr) @125F ambient | 9,383 | 18,506 | 19,201 | 40,100 |
| Heating (Watts) | 2,200 | 4,500 | 4,200 | 9,000 |
| Power (KW) @125F | 2.2 | 3.5 | 3.5 | 6.4 |
| Weight (Lbs) | 134 | 226 | 208 | 295 |
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
HVAC
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
| Physical | 36k | 60k | ||
|---|---|---|---|---|
| Width | 42 in (center of gravity 24 in) | 42 in (center of gravity 24 in) | ||
| Depth | 52 in (center of gravity 22 in) | 52 in (center of gravity 22 in) | ||
| Height | 33 in (center of gravity 15 in) | 33 in (center of gravity 15 in) | ||
| Volume | 43.8 ft3 | 43.8 ft3 | ||
| Weight (Lbs) | 555 lbs | 622 lbs | ||
| Refrigerant Type | R410-A | R410-A | ||
| Refrigerant Charge | 6.0 lbs | 8.7 lbs | ||
| Electrical | 36k | 60k | ||
| Voltage | 208 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) | ||
| Performance | 36k | 60k | ||
| Military Conditions | AHRI Conditions | Military Conditions | AHRI Conditions | |
| Cooling | 40,027 BTU/hr | 44,053 BTU/hr | 59,250 BTU/hr | 66,049 BTU/hr |
| Heat Pump | N/A | 28,797 BTU/hr | N/A | 52,786 BTU/hr |
| Electric Resistance Heat | 21,160 BTU/hr | 30,717 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