3-1. Power Entrance Panel Connectors
If the PHASE indicator fails to light, either
the shelter and the PU-619/M are not properly
Connects 3-phase power from the PU-
POWE R IN
connected or the lamp is burned out. Do not
619/M to the shelter.
proceed until it has been determined that the
Provides connection of shelter ground to
shelter and power unit are properly connected.
e. Set all circuit breakers located in the circuit
3-2. Power Monitor Panel Controls and
breakers box (except circuit breaker 2) to ON (fig. 1-6).
f. If heat is required in the shelter, connect a fuel line
Control or indicator
to the fuel intake (fig. 1-1). Remove the heater exhaust
Lights when PU-619/M is operational
POWER ON indicator
cap (fig. l-l) and open the front wall exhaust louver
and connected to the shelter.
slightly (refer to TM 5-4520-232-14). Place circuit
Provides 3-phase power to the air
3-phase circuit breaker
breaker 2 (in the circuit breakers box) to ON.
(CB), input power
g. If the air conditioner is required, close the 3-phase
Provides 3-phase power to 9 single phase
3-phase circuit breaker,
main power box
Operate the air conditioner controls as required (figs.
Lights when the 3-phase power from
PHASE indicator lamp
3-1 and 1-6), and refer
to TM 5-4120-222-14.
the PU-619/M is correctly phased
with the shelter.
3-3. Power Distribution Controls
Check to see that the air conditioner fan is
rotating in the direction of the arrow. If not,
a. Circuit Breakers.
the input power to the air conditioner is not
properly phase connected and should be cor-
rected to the air conditioner.
3-5. Operation of Emergency Light and
Rack 1 (AN/TPM-25A)
Rack 2 (AN/USM-281)
Rack 3 (PP-2953/U)
a. After completing the starting procedures (para
Rack 4 (not used)
Rack 5 (AN/URM-98, ME-202A/U)
the emergency light line cord into
Rack 6 (not used)
ient ac outlet. Place the EMERGENCY LIGHT ON-
OFF switch to ON.
b. The READY light on the emergency light should
light indicating it is operating properly.
b. START-STOP Buttons. When the START but-
c. If power from the PU619//M fails, the emergency
ton is pressed, power is applied inside the shelter. Press-
light should light automatically.
ing the STOP button, removes power from inside the
When shutting off power, before leaving the
3-4. Starting Procedure
shelter to stop the PU-619/M, be sure that the
a. Be sure that the power cable is properly connected
EMERGENCY LIGHT ON-OFF switch is set
and that the power supply and shelter are properly
to OFF and remove the emergency light line
cord from the ac outlet. Failure to do so will
b. Start the PU-619/M. Refer to TM 5-6115-365-
cause the emergency light batteries to run
c. The shelter POWER ON green lamp (fig. 1-6) will
d. During blackout operation, the BLACK OUT
OVERRIDE ON-OFF switch should be set to OFF. In
this position, the shelter light will go out when the en-
PHASE indicator lamp lights (amber), indicating the
trance door is opened.
shelter and the PU-619/M are properly connected.