Modular Refrigeration/Freezer Unit

Modular Refrigeration/Freezer Unit
M A I N S T R E A M E N G I N E E R I N G CO R P O R AT I O N
Modular Refrigeration/Freezer Unit
for insulated shipping containers
Mainstream’sModularRefrigerationUnit(MRU)
provides thermal control to insulated containers in ambient temperatures
as high as 130°F and as low as -40°F. Both the MRU-TQ1-404 and the MRU-TQ3-404
can be rigidly attached to either a Tricon or Quadcon insulated container. The MRU
is designed to replace the Thermo King VM405 and the Carrier Integra 30S with improved
performance, reliability and ease of maintenance. Using a high-efficiency, environmentally safe
refrigerant, the MRU meets or exceeds all requirements for military heating and cooling.
`` Straightforward and intuitive control panel
`` Brazing, soldering or wire splicing never required
`` Integrated LCD that simplifies temperature and
`` Continuous cyclical operation of 16,000 hours without
`` 18 LED status indicators and nine jumpers located on
`` Designed for maintenance or repair with common tools
`` Wire harnesses are straightforward plug and play
`` Mean Time Between Failure (MTBF) rate of 5,202 hours
defrost settings
the PCB allow the user to override sensors and relays
critical failure
from standard military tool kits
`` 20-year storage life without performance degradation
MKTG000162_09232014_204030101
MRU Value-Added Features
Designed for Military Environment
The MRU was designed for the harsh military environment. The unit
has been tested to MIL-STD-810F (e.g., salt-fog, sand-dust, high
and low temperature storage, ground mobility and rail impact).
Air Flow and Air Circulation
Air is drawn into the evaporator so condensation is not sprayed
onto the food inside the container. The conditioned air circulates
radially from the evaporator compartment to provide more uniform
air flow distribution and prevent air blockage.
Total Unit Modularity
Every component can be replaced with common tools. Brazing,
soldering or wire splicing is never required.
System Redundancy
Component redundancy allows the MRU to operate even if a
condensor fan, evaporator fan, fan capacitor or heater fails. Extra
terminals are available on the relays if a contact pits and fails.
Energy Saver Option
In freezer mode, an energy saver selection switch automatically
operates the MRU longer during cooler periods of the day, such
as the evening, to reduce power consumption.
Watertight Electronics
The control box and wire harness connections are watertight to
improve reliability and simplify cleaning. The entire unit can be
hosed off to remove dirt and other contaminants.
LED Diagnostics
The MRU circuit board has 18 LED status indicators to simplify
troubleshooting.
Circuit Breakers
The MRU uses re-settable circuit breakers; there are no fusible
links or fuses.
Jumper Ports
PCB jumpers simplify diagnostics and allow a field override of the
control board should the electronics fail.
Black-out Control
The black-out (lights out) feature can be used in tactical situations.
Combined Suction Line Accumulator/Liquid
Receiver with Sight Glass
The suction line accumulator is located inside the liquid receiver
to improve cooling capacity and performance. The liquid receiver
contains a refrigerant sight glass to simplify system charging.
Simplified Control System
The electrical control system can be quickly and easily tested
with a multimeter. Electrical components can be replaced with
common maintenance tools. The electrical circuit schematic is
displayed on the side of the MRU to aid in troubleshooting and
repair. The entire control box can be easily removed and replaced,
if necessary.
Ease of Installation
No manual lifting is required. The MRU is designed to be installed
and removed with a forklift.
MRU Specifications
Physical
Height
Width
Depth
Weight
Electrical Power
MRU-TQ1-404
21.4 inches
36.8 inches
38 inches
350 lbs
MRU-TQ3-404
120 VAC, single-phase, 60 Hz
208 VAC, 3-phase, 50/60 Hz
Y Connection w/Neutral
Cooling Capacity
MRU-TQ1-404
MRU-TQ3-404
Refrigerant
2,800 Btu/hr (820 W) at 0°F/100°F
4,500 Btu/hr (1,318 W) at 0°F/100°F
R-404A
Setup Time: The MRU can be installed in less than 60 minutes by two people and is
operable by a soldier outfitted in all levels of Mission Oriented Protective Posture
(MOPP) equipment. The MRU requires less than 60 minutes Mean Time To Repair
(MTTR) including evacuation and recharging using standard commercial support
and test equipment.
Made in the USA
www.mainstream-engr.com
54.3 cm
93.3 cm
96.5 cm
158.8 kg
6,600 Btu/hr (1,933 W) at 35°F/100°F
9,000 Btu/hr (2,636 W) at 35°F/100°F
6 lbs 6 oz
MODEL NUMBERS: MRU- TQ1 - 404
POWER
TQ1: 120 VAC, 1-phase
TQ3: 208 VAC, 3-phase
REFRIGERANT
404: R-404A
200 Yellow Place • Rockledge, FL 32955
321.631.3550 • fax 321.631.3552
[email protected]
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement