Tweco 15XC Merlin - Manual (Page 26)

INSTALLATION PROCEDURES 3-4 Manual 0-2251
3.3 PLASMA AND SECONDARY CONNECTIONS (continued)
5. Connect one side of the Y-hose assembly into the other
side of the 90° street elbow.
6. Thread the 90° female elbow onto the other end of the
second hex nipple. Fasten both sides securely.
7. Connect the other side of the Y-hose assembly to the
fitting on the rear panel marked SECONDARY.
8. Connect the supply line from the source to the Y-hose
assembly. The supply hose must be 3/8 in (10 mm)
min. inside diameter to provide adequate air flow.
1. Examine the cylinder valves to be sure they are clean
and free of oil, grease or any foriegn material. Momen-
tarily open each cylinder valve to blow out any dust
which may be present.
2. Each cylinder must be equipped with an adjustable
high-pressure regulator capable of pressures up to 125
psi (8.6 bar) maximum and flows of up to 220 scfh (103
lpm) for cutting or 470 scfh (222 lpm) for gouging.
Maximum input pressure to the power supply's internal
regulator must not exceed 125 psi (8.6 BAR).
Refer to the regulator manufacturer's specifications for
installation and maintenance procedures. Refer to
Section 6.2, System Components and Accessories, for a
listing of available high-pressure regulators.
3. Connect the plasma supply hose (black) to the plasma
gas cylinder and to the input fitting on the rear panel
marked PLASMA.
4. Connect the secondary supply hose (yellow) to the
secondary gas cylinder and to the input fitting on the
rear panel marked SECONDARY.
A typical 50 lb. CO 2 cylinder can deliver a continuous flow
rate of 35 scfh (16.5 lpm). To obtain the required flow rate
for the torch, it may be necessary to manifold several CO
2
cylinders. Continuous flow requirements will depend on
the specific application and duty cycle.
Air Line Filter Installation
(continued)
Input Gas Connections
(Multi-Gas Operation)
Do not stand in front of the valve outlet when opening. WARNING
CAUTION
NOTE