Tweco PakMaster 50XL Plus - Manual (Page 18)

SECTION 3: INSTALLATION PROCEDURES 12 Manual 0-2744
• If using a fork lift vehicle, place and secure unit on a
proper skid before transporting.
• This unit has a handle mounted on top of the enclo-
sure for hand lifting only. Be sure unit is lifted and
transported safely and securely.
WARNING
HANDLE is not for mechanical lifting.
3.05 Input Power Connections
The Power Supply accepts input voltages from 208V to
460V. Input can be 50 or 60 Hz, single-phase or three-
phase.
The Power Supply is factory-wired for 230V single-phase
or 460V three-phase input depending on the order. For
any other input voltage, the Power Supply must be
changed using the procedure in Section 3.06.
A. Electrical Connections
The power source must conform to local and national elec-
tric codes. Recommended circuit protection and wiring
requirements are shown in Appendix I.
B. Opening Power Supply Enclosure
The left side panel of the Power Supply must be removed
to gain access to the input power connections and the
input voltage selection.
WARNING
Disconnect primary power at the source before as-
sembling or disassembling the Power Supply, torch
parts, or torch and leads assemblies.
1. Using a phillips head screw driver remove the top two
screws which secure the left side panel (viewed from
front of unit) to the frame assembly. Loosen the bottm
three scews
Ground
Wire
Screws
(5 places)
Left Side
Panel
A-02468
Figure 3-1 Removing Left Side Panel
NOTE
There is a ground wire connection to the Left Side
Panel on the inside of the unit.
2. Loosen the bottom three screws, and carefully pull the
Left Side Panel up and away from the unit to gain
access to the inside of the unit.
3.06 Input Voltage Selection
NOTE
For power supplies to use 575 VAC input power,
the unit must be setup for 460V three-phase op-
eration and the 575V Transformer Accessory must
be installed.
The Power Supply has three voltage settings; 208/230/
240VAC, 380/415VAC, or 460VAC. Power Supplies are
factory-wired for 230V single-phase or 460VAC three-
phase input depending on the order. Input voltage selec-
tion is accomplished by switching a wire harness con-
nector inside the Power Supply.
WARNING
Disconnect primary power at the source before as-
sembling or disassembling the power supply, torch
parts, or torch and leads assemblies.