Tweco CE PAK Master 150XL Without Latch Circuit - Manual (Page 23)

Manual 0-2696 3-5 INSTALLATION
3.08 Gas Connections
The Power Supply provides the liquid cooling and gases
to support operation of the Torch.
NOTE
Refer to the Torch Instruction Manual for infor-
mation on plasma and secondary gas selection and
requirements.
The following are available gases that can be used with
this System:
• Plasma Gases
Compressed Air, Nitrogen, Argon/Hydrogen
• Secondary Gases
Compressed Air, Carbon Dioxide (CO2), Nitrogen
Gas requirements vary depending on the application. The gases
are connected to the rear panel connections of the power sup-
ply. Depending on the options installed and the source of the
gases will determine the installation of connections, filters and
regulators.
This sub-section includes information for connecting the gas
supplies to the Power Supply. The information is grouped in
paragraphs for different types of gases and options as follows:
A. Using Shop Air Only
B. Using Shop Air Only with Optional Two Stage Filter
Assembly
C. Using High Pressure Gas Cylinders Only
D. Using Plasma Shop Air and Secondary High Pres-
sure Gas Cylinder
E. Using Plasma Shop Air with Optional Two Stage Fil-
ter Assembly and Secondary High Pressure Gas Cyl-
inder
A. Using Shop Air Only
Each Air Line Regulator on the rear of the power supply has a
built-in Air Line Filter. Filtering is required when using an air
compressor to insure that moisture and debris from the supply
hose does not enter the torch.
CAUTION
When using shop air, the air supply must be free of
oil, moisture, and other contaminants. Excessive
oil and moisture may cause double-arcing, rapid
tip wear, or even complete torch failure. Contami-
nants may cause poor cutting performance and
rapid electrode wear.
It is recommended that the Optional Two Stage
Air Line Filter be used for improved air filtering.
The following procedure is the recommended shop air connec-
tion method:
1. Locate the 1/4 NPT to #4 (6 mm) barbed hose fitting shipped
inside the Torch Spare Parts Kit.
2. Remove the factory installed plug fitting from the end of the
T-Fitting on the "Y" Hose Assembly.
3. Install the supplied barbed fitting into the input of the "T"
Fitting.
Plasma Gas
Supply Hose
Plasma Air
Regulator Assembly
A-02109
Barbed Hose Fitting
T-Fitting
Inert B Fitting
Secondary Air
Regulator Assembly
Secondary Gas
Supply Hose
Inert B Fitting
Gas Supply
Hose
Hose Clamp
Figure 3-6 Shop Air Connections
4. Tighten the barbed fitting.
5. Connect the air supply hose (see NOTE) to the barbed fit-
ting and secure with a customer supplied hose clamp.
NOTE
The customer supplied hose must be at least a #4
hose (1/4 inch or 6 mm I.D.) to provide adequate
air flow.