TM 10-5410-224-14
NOTE
2-3. Ventilation Fans.
If the equipment fails to operate, refer to
Ventilation fans can be installed in each of the
troubleshooting procedures in Chapter 3.
two foldout end walls of the shelter. When in-
stalled, each ventilation fan is controlled by a
2-1. General.
separate switch located above each installation
Operating instructions for the expandable shelter
location. These are three-position switches which
is limited to the operation of circuit breakers and
are used to select either the exhaust or intake
switches for the purpose of applying power to
operation of the fan. The third position is off.
lights, outlets, ventilation fans and ECU's. The
Circuit breakers are connected in series with the
operation of these circuit breakers and switches is
two fan switches to protect against overloads.
covered in the following paragraphs.
NOTE
switches and circuit breakers.
The physical locations of lights, ventilation fans,
ECU's and utility outlets are shown in electrical
NOTE
installation illustration, figure 3-1 sheet 1 of 3.
Normally, ventilation fans are not used if one or
two ECU units are installed.
2-2. Lights.
2-4. ECU.
There are six ceiling-mounted flourescent light
The ECU's are not supplied with the expandable
assemblies inside the shelter in addition to an
shelter. However, power cables with circuit breaker
incandescent (emergency) light which is located
protection are provided in the shelter to ac-
above and to the left of the circuit breaker panel.
commodate the ECU's in two locations. The two
Each pair of ceiling lights (left, center, and right)
is controlled by separate switches mounted on the
circuit breakers are identified in figure 2-1 and
side of the circuit breaker panel. The emergency
light is also controlled by a switch on the side of
2-5. Outlets.
the circuit breaker panel. Each of these four
There are 12 duplex utility outlets located
switches is connected in series with a circuit
around the interior of the expandable shelter. In
breaker to provide protection against overloads.
addition, there are two exterior outlets located on
One other shelter light is the removable exterior
the power entrance panel as shown in figure 2-1.
light which is plugged into one of the utility
The 12 interior outlets are controlled in four groups
outlets on the power entrance panel. Since separate
of three by four circuit breakers. The two exterior
circuit breakers control each of the utility outlets,
outlets are controlled by separate circuit breakers.
the exterior light can be turned on and off from the
appropriate circuit breaker. Identification of each
breakers.
circuit breaker and switch is given in figure 2-1
and in table 2-1.
