TM 10-6640-239-13
1-11
b.
Front and Roadside Exterior. (Refer to Figure 1-3.)
Environmental Control Units (1): Provides heating and cooling of laboratory. The four units are identical, but
each has its own individual controls.
Purge Intake Door (2): Hinged, double latched access door for purge intake damper. Purge Intake Door shall
be open during purge cycle to allow environmental control unit to ventilate laboratory.
Fume Hood Vent Door (3): Hinged, double latched access door for venting both fume hoods. Fume Hood Vent
Door shall be open when operating exhaust blowers.
Fume Hood Exhaust Vent Extension (4): Connects to fume hood vent door and used to exhaust fumes away
from purge intake door and environmental control units. Stores in mechanical room during transit.
Power Input Panel Door (5): Hinged, double latched access door to electrical and telephone connection points.
An alarm buzzer which indicates a purge door closed during a purge cycle is also located behind this door.
Roadside Storage Box (6): Provides storage area for power input cable that connects laboratory to power
distribution module, ground rod, ground rod driver/puller, hose adapter, coupler and fire hose. It is equipped
with fork truck lift slots and retaining pins for installation/removal.
Utilities Box Door (7): Hinged, double latched access door to water connections for hoses to fill, supply or
drain water system.
Trailer Accessories Storage Door (8): Provides access to storage area for trailer accessories,; i.e., roadside
reflectors, wheel chocks, various tools, wiping rags, etc.
Purge Exhaust Door (9): Hinged, double latched access door for purge exhaust damper. Purge Exhaust Door
shall be open during purge cycle to allow air to be exhausted from laboratory.
2
3
5
7
8
6
9
1
MBPLB-1-3A
4
Figure 1-3. Front and Roadside Exterior
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