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 AGC. See Section 2
for gas supply requirements. Connectors are 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.
Air Inlet
(ISO 3821 hose color - black)
•
Air must be supplied to the unit at all times, regardless of the cutting current or
material type.
Oxygen Inlet
(ISO 3821 hose color - blue)
•
Oxygen must be supplied to the unit at all times, unless stainless steel is being cut
with H17 plasma.
Nitrogen Inlet
(ISO 3821 hose color - black)
•
Nitrogen must be supplied to the unit at all times, regardless of the cutting current or
material type.
H17 Inlet
(ISO 3821 hose color - red)
•
H17 must be supplied to the unit when stainless steel is being cut with H17 as the
plasma gas. See cutting charts in Section 5 for more information.
Argon Inlet
•
Argon is optional and provides improved marking capabilities. If not used, this inlet
should be capped.
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