Icom IC-M71 Instruction Manual page 37

TM 10-7360-226-13&P
CONTAINERIZED KITCHEN (CK) 0003 00
THEORY OF OPERATION
process being heated or cooled. From the outlet plenum, the air is distributed throughout the
kitchen through fixed ductwork.
The ECU provides automatic electrical load control to maximize the amount of available air
conditioning. Each of the two air conditioners has two compressors. The ECU continuously
monitors total kitchen load and operates the four compressors independently to maximize
cooling while keeping power consumption within the 10kW capacity of the generator. This
feature also operates when the CK is using external power, limiting power consumption to 10kW
regardless of the amount of external power available.
LIGHTING
Two switches on the MCP, INTERIOR LIGHTING and LIGHTING MODE, control the lighting
circuit. When the INTERIOR LIGHTING switch is ON and the LIGHTING MODE switch is in
NORMAL, the white lights are on. Placing the LIGHTING MODE switch in BLACKOUT turns off
the white lights and turns on the red blackout lights.
Emergency lighting capability is included in the white light fixture nearest the personnel door. It
consists of an internal, rechargeable nickel-cadmium battery, control circuit, power indicator light
and a test switch. If power is lost, the light automatically comes on (or remains on if it was
operating). Its internal battery, when fully charged, has enough power to operate the light at
reduced illumination for at least 90 minutes, allowing the operators to evacuate the kitchen until
power can be restored. The EMERGENCY LIGHT switch, located on the MCP, disconnects the
battery from the light. The switch should be left ON whenever there is power to the kitchen so
the battery will charge. It should be placed in OFF whenever the lights are intentionally turned
off or power is removed from the kitchen. This saves the battery charge so that it is available at
the next startup to provide lighting in the kitchen until the generator can be brought on line or
external power connected. If the emergency light is left on long enough to drain the battery, it
will take approximately 36 hours to fully recharge.
The emergency light is tested by operating the test switch on the fixture. Momentarily moving
the switch causes the emergency light to come on. The switch returns to its previous position
and the light goes out when the switch is released.
WATER SUPPLY & DRAINAGE SYSTEM
The CK potable water supply and waste water drainage systems are shown in Figure 1.
Potable water is supplied from an external source such as a 400-gallon, M149 water trailer. The
water is routed to the onboard sink through a 50-foot, 5/8-inch diameter supply hose made of
an FDA-approved material that is safe for drinking water. The brass end couplings have 3/4-
inch diameter threads - male on one end and female on the other. The male end of the hose is
passed through a penetration in the side of the fabric cover and connected directly to a female
connection in the back of the sink cabinet. The sink assembly is described in detail in WP 0002
00.
0003 00-2