Tweco 1000 CE Merlin - Manuel (Page 21)

Manual 0-2731 3-3 INSTALLATION
3.06 Gas Connections
The Power Supply provides the liquid cooling and gases to
support operation of the Liquid Cooled Maximizer 300 Torch.
NOTE
Refer to the Liquid Cooled Maximizer 300 Torch
Instruction Manual (Cat. No. 0-2710) for informa-
tion on plasma and secondary gas selection and re-
quirements.
The following are available gases that can be used with
the Liquid Cooled Maximizer 300 Torch:
Plasma Gases: Compressed Air, Oxygen (O2), Nitro-
gen (N2), or Argon/Hydrogen (Ar/H2)
Secondary Gases: Compressed Air, Oxygen (O2),
Nitrogen (N2), Carbon Dioxide (CO2), or Tap Water
Gas requirements vary depending on the application. The
gases are connected to the rear panel connections of the
power supply. Depending on the options installed and
the source of the gases will determine the installation of
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
B. Using High-Pressure Gas Cylinders
C. Using Plasma Shop Air and Secondary High-Pres-
sure Gas Cylinder
D. Using Water Secondary
Refer to the appropriate paragraph(s) for the desired ap-
plication to be used.
A. Using Shop Air
NOTE
The Two Stage Air Line Filter Assembly is to be
used when using shop air as the Plasma Gas.
An inline pneumatic dryer/evaporator type air filter, ca-
pable of filtering particulates to at least 5 microns with a
dew point of 35°F (1.7°C), is required when using air from
a compressor. This type filter will insure that moisture,
oil, dirt, chips, rust particles, and other contaminants from
the supply hose do not enter the torch. For highly automated
applications, a refrigerated drier plus a particulate filter may be
used to chill the air to remove all moisture.
CAUTION
Excessive oil or moisture in compressed air will
reduce torch parts life and cutting performance and
may cause torch failure.
All Merlin 1000 Systems are supplied with a Two Stage Air Line
Filter attached to the rear of the Power Supply. The following
procedure is the recommended shop air connection method:
Connect the air supply hose (see note) to the Air Line Filter
input port (IN) barb fitting and secure with a customer
supplied hose clamp.
A-02348
Air Supply Hose
(Customer Supplied)
Two-Stage
Air Filter
PLASMA GAS
SECONDARY
GAS
Barb Fitting
Figure 3-1 Supply Hose Connections
NOTE
The supply hose must be 1/4 inch (6.3 mm) mini-
mum inside diameter to provide adequate air flow.