Tweco 3000 Merlin - Manual (Page 21)

Manual 0-2532 3-3 INSTALLATION
4. Carefully pour enough of the supplied Thermal
Arc Torch Coolant into the reservoir to fill it to the
FULL mark on the rear panel.
NOTE
After operating the system more coolant may
need to be added. Allow the pump to operate
for ten minutes to properly purge any air from
the coolant lines before using the system.
4. Reinstall the reservoir coolant filler cap.
3.06 Input Power Connections
The Power Supply accepts input voltages from 200V to
575V, 50 or 60 Hz, three-phase power. Every Power
Supply is factory wired for 460V input. For any other
input voltage, the Power Supply must be reset.
NOTE
Refer to Section 3.07, Voltage Selection.
A. Electrical Connections
The power source must conform to local electric code
and the recommended circuit protection and wiring re-
quirements shown in Appendix I.
B. Input Voltage Selection
Every Power Supply is factory-wired for 460V three-phase
input. For any other input voltage, the Power Supply
must be changed using the procedures in Section 3.07.
C. Opening Power Supply Enclosure
The left side panel (viewed from the front) of the Power
Supply must be removed to make electrical connections
and to select the proper input voltage.
WARNING
Disconnect primary power at the source be-
fore assembling or disassembling power sup-
ply, torch parts, or torch and leads assemblies.
1. Remove the ten screws which secure the left side
panel (viewed from the front) to the Power Supply .
Left Side Panel
Screws
(10 Places)
A-00954
Figure 3-3 Opening Power Supply
2. Remove the left side panel from the Power Supply.