Tweco PakMaster 75XL Plus (CE) - Manual (Page 18)

INSTALLATION 3-2 Manual 0-2782
3.05 Input Power Cable Connections
The 75XL PLUS Power Supply operates on three phase,
380-415 VAC ± 10% 50/60 Hz input.
CAUTION
The primary power source, power cable, and plug
must all conform to local electric code and the rec-
ommended circuit protection and wiring require-
ments (refer to Appendix 1).
The Power Supply is supplied with a three-phase, four
conductor, input EMC power Cable attached. Connect
the supplied input EMC power cable to the customer's
power source per the following procedure:
NOTE
The input power cable must not be modified in any
way as filtering beads are installed onthe cable.
1. Strip back the outer covering approximately 3
inches (76 mm) to expose the individual wires at
the free end of the cable.
2. Cut back the insulation on the individual wires
approximately 1/8 - 3/16 inch (3-5 mm).
3. Connect the ends of the individual wires a cus-
tomer supplied plug or main disconnect per the
following:
NOTE
All the input cable wires must be connected for
three-phase operation.
• Blue wire to Line 2 (Live)
• Black wire to Line 3 (Live), refer to Note above
• Brown wire to Line 1 (Live)
• Green/Yellow wire to Ground (Earth)
3.06 Gas Connections
A. Gas Requirements
WARNING
This unit not to be used with oxygen (O
2
).
Gases: Compressed Air or Nitrogen (N2) Only
Pressure: 60 - 75 psi (4.1 - 5.2 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
Flow: Cutting - 300 scfh standard cubic feet/hour(142 lpm)
Gouging - 300 scfh (142 lpm)
B. Checking Air Quality
To test the quality of air, place the RUN/SET/LATCH
switch to SET position, place a welding filter lens in front
of the torch and turn on the gas. Any oil or moisture in
the air will be visible on the lens. Do not initiate an arc!
CAUTION
The air supply must be free of moisture, and other
contaminants. Excessive moisture may cause
double-arcing, rapid tip wear, or even complete
torch failure. Contaminants may cause poor cut-
ting performance and rapid electrode wear.
C. Gas Connections
The gas supply is connected to the Pressure Regulator/
Filter Assembly installed on the rear of the unit. The con-
nection is the same for compressed air or high pressure
gas cylinders.
Connect the gas supply as illustrated. Typical fittings are
shown as examples. Other fittings may be used.
1. If an optional air line filter is to be installed, refer to
subsection D.
NOTE
Filtering is required when using air from a com-
pressor to ensure that moisture and debris from the
supply hose does not enter the torch. It is recom-
mended to order the optional