Chapter 3. OPERATION

TM 11-4940-480-14

CHAPTER 3

OPERATION

3-1. Power Entrance Panel Connectors

NOTE

If the PHASE indicator fails to light, either

Function

Connectors

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

GND stud

ground rod.

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).

Indicators

f. If heat is required in the shelter, connect a fuel line

Function

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.

lamp (green)

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.

conditioner.

(CB), input power

g. If the air conditioner is required, close the 3-phase

panel

Provides 3-phase power to 9 single phase

3-phase circuit breaker,

circuit breaker on the input power panel (fig. l-l).

circuit breakers.

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

(amber)

with the shelter.

CAUTION

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

Circuit

properly phase connected and should be cor-

breaker

Rating

rected to the air conditioner.

Circuit controlled

No.

(amperes)

3-5. Operation of Emergency Light and

Rack 1 (AN/TPM-25A)

CB6

Rack 2 (AN/USM-281)

Override Switch

CB4

Rack 3 (PP-2953/U)

CB1l

a. After completing the starting procedures (para

Rack 4 (not used)

CBIO

Rack 5 (AN/URM-98, ME-202A/U)

CB12

3-4), insert the emergency light line cord into a conven-

Rack 6 (not used)

CB9

ient ac outlet. Place the EMERGENCY LIGHT ON-

Heater

CB2

OFF switch to ON.

Ceiling lights

CB7

b. The READY light on the emergency light should

Blower motor

CB8

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

shelter.

CAUTION

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

grounded.

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

15.

down.

c. The shelter POWER ON green lamp (fig. 1-6) will

d. During blackout operation, the BLACK OUT

light.

OVERRIDE ON-OFF switch should be set to OFF. In

d. Press the shelter START button (fig. 1-5). The

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.

3-1