Spirit II User’s Manual
Section 3: Installation
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Gas Supply Connections
Perform the following steps to connect the gas supply lines to the MGC. See Section 2
for gas supply requirements. Mating hose barbs should be sized for 3/8 inch inside
diameter hose.
Do not change the inlet gas supply fittings to quick-connect
fittings. Using quick-connect fittings to connect and disconnect pressurized
hoses may cause damage to the system.
Note: When making hose connections, only tighten the brass fittings enough to
make gas seals. The fittings are subject to damage if over tightened.
WARNING
IMPROPER GAS USAGE can cause explosion and/or fire.
•
The combination of Preflow/Postflow, Plasma and Shield input gases should always
adhere to the types specified in the cut charts for a given material type.
•
When changing to a different type of gas (oxidizing or oxygen containing to
combustible or vice versa), a purge of the gas lines (30 second minimum) must be
completed to reduce the risk of fire or explosion.
•
Do not connect H17 (combustible gas) as an input gas (Pre/Postflow, Plasma, or
Shield) at the same time as Oxygen or Air.
Shield Gas Inlet
* Connect the proper shield gas to the Shield In port.
See the cutting charts in Section 4 for proper gas types.
Plasma Gas Inlet
* Connect the proper plasma gas to the Plasma In port.
See the cutting charts in Section 4 for proper gas types.
PreFlow / PostFlow Gas Inlet
* Connect the proper preflow gas to the Preflow In port.
See the cutting charts in Section 4 for proper gas types.
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