Miller Electric OM-225A Welder User Manual


 
OM-225 Page 12
2-5. Connecting Work Clamp And Gas/Air Supply
1 Work Clamp
2 Workpiece
Connect work clamp to a clean,
paint-free location on workpiece, as
close to cutting area as possible.
3 Gas/Air Input (Female 1/4
NPT)
4 Quick Connect Gas Fitting
5 Standard Pipe Fitting (Male
1/4 Inch)
Obtain desired fitting. Wrap threads
with teflon tape or apply pipe seal-
ant, and install fitting onto unit.
6 Hose
Obtain suitable hose according to
installed fitting, and connect to fit-
ting. Route hose to gas/air supply.
Adjust gas/air pressure according
to Section 3-1.
Y Incorrect plasma gas can
cause torch and power
source damage. Use only air
or nitrogen for the plasma
gas.
Ref. ST-801 390 / ST-801 391
From Gas/Air Supply
5
Use only clean, dry gas/air with 70 to 150 psi
(483 to 1034 kPa) pressure.
4
3
6
1
2
2-6. Electrical Service Guide
Three-Phase Single-Phase
Input Voltage
230 460 230 460
Input Amperes At Rated Output
24 12 48 24
Max Recommended Standard Fuse Or Circuit Breaker Rating
In Amperes
45 25 80 40
Reference: 1993 National Electrical Code (NEC). S-0092J