3-10
S
ETUP
Operator Manual
Additional Air Filtration
Use a three-stage coalescing filtration system as shown in Fig. 3-12 when site conditions introduce
moisture, oil or other contaminants into the air line.
Nitrogen Supply Quality
Nitrogen must be supplied to the Powermax1100 at 99.995% purity. If the purity level of the nitrogen is
too low, cut speeds decrease, cut quality deteriorates, cutting thickness capability decreases, and parts
life shortens. (Note: These conditions also occur if there are leaks in the gas supply hoses or
connections.) The nitrogen supply can be compressed gas cylinders or liquid containers.
GAS SUPPLY CONNECTION
Use a 3/8 inch (9.5 mm) ID inert gas hose to connect the gas supply (air or nitrogen) to the power
supply filter. To connect the hose, install a 1/4 NPT nipple to the filter block as shown in Fig. 3-13.
Apply liquid pipe sealant to the threads to ensure a leak-free installation. A nipple and adapters are
included in the consumable parts kit.
CAUTION:
Never use Teflon tape when installing the nipple or adapters. Bits of tape can break off
and enter the air line and harm the pressure regulator, pressure switch and valve.
Figure 3-13 Rear Panel, Gas Supply Connection to Filter
Filter
From air
supply
To
Powermax1100
Water/particle filter
Oil filter
Oil vapor filter
Figure 3-12 Recommended Three-Stage Air Filtration System
1/4 NPT Nipple
Gas Supply
Hose Connection
