INSTALLATION AND OPERATING INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF EQUIPMENT AND INSTALLATION
2-3. Input Power Connections
a. Packaging Data. When packed for shipment, the
PRIOR TO INSTALLATION
PP-4606C/G is placed in a plastic protective bag and
A shock hazard, due to incorrect wiring,
securely packed in a wooden packing frame. The frame
may exist within some PP-4604C/G (NSN
is shown in figure 2-1. The volume is 32 cubic feet and
the weight is 400 lbs.
MCL Inc, u n d e r Contract Number
b. Removing Contents.
DAAB07-76-C- 1411. The wiring does not
follow the National Electrical Color Code
Avoid personal injury. Power Supply
for power circuits. Before connecting the
PP-4606C/G weighs 400 pounds; be careful
unit to an external ac power source, check
when moving. A mechanical lift is required.
that the 100 foot ac power input cable of the
(1) Remove the nails from the sides of the top 2x4
unit is internally wired as shown in figure
frame with a nailpuller. Remove the top frame.
to Ll, BLACK
(2) Remove nails from hold down 2x4 cross
WHITE to L3, and GREEN to chassis
braces using a nailpuller. Remove cross braces (2).
ground. If unit is not wired correctly, red tag
(3) Remove nails from sides of corner side braces
the unit until the wiring has been changed.
using a nailpuller. Remove sides (4).
(4) Lift unit from base.
(5) Remove plastic protective cover.
HIGH VOLTAGE (220 or 440 volts ac) is
(6) The manual is packed in an envelope taped to
present during power line connections.
the top of the unit.
These connections must be made by
(7) The cables are wrapped at the back of the
authorized installation personnel and should
be protected with three 20-ampere fuses for
220 volt ac input or three 10-ampere fuses
for 440 volt ac input. These connections
must be controlled by an external switch for
removal of power from the power supply
2-2. Checking Unpacked Equipment
a. Set CIRCUIT BREAKER to OFF position.
a. Inspect the equipment for damage incurred dur-
b. Remove plexiglass plate that covers INPUT
ing shipment. If the equipment has been changed,
VOLTAGE switch by removing the four locking screws.
c. Set INPUT VOLTAGE switch to 220 (left)
b. Check the equipment against the component
position for 220 volts ac input power or to 440 (right)
listing (para 3-4) and the packing slip to see if the ship-
position for 440 volts ac input power.
ment is complete. Report all discrepancies in accordance
d. Secure plexiglass cover using the four locking
service even though a minor assembly or part that does
e. Source of ac input power should be protected
not affect proper functioning is missing.
with three 20-ampere fuses for 220 volt ac input power
or three 10-ampere fuses for 440 volt ac input power.
c. Check to see whether the equipment has been
These connections should be controlled by an external
modified. (Equipment which has been modified will
switch. Set this external switch to off.
have the MWO number on the front panel, near the
f. Connect 100 foot ac input cable to the ac power
nomenclature plate.) Check also to see whether all cur-
source. Make sure the green conductor, which is the
rently applicable MWO's have been applied. (Current
chassis ground, is connected to the ground of the ac line
MWO'S applicable to the equipment are listed in DA
Change 2 2-1