Tweco Merlin 6000 Master PS - Manual (Page 29)

Manual 0-2568 3-11 INSTALLATION PROCEDURES
9. Connect the air supply hose from a Y-Hose Assembly
to the street elbow on the Air Line Filter input port
(IN). The Y-Hose Assembly should have already been
installed, if shop air was being used as the plasma
and secondary gases.
A-01340
Air Filter
Assembly
Shop Air
Gas Input OUTP UT OUTPUT TO TO CON TROL CONTROL
MOD ULE MODULE
AIR AIR PLAS MA PLASMA
INPU T INPUT
N2 PLAS MA PLASMA
INPU T INPUT
O2 PLAS MA PLASMA
INPU T INPUT
PLAS MA G AS PLASMA GAS
Ar/H Ar/H 2 PLAS MA PLASMA
INPU T INPUT
Secondary Air
Gas Fitting
Y-Hose
Assembly
From Supply
Figure 3-14 Supply Hose Connections Wit Gas
Control Option
10. Apply thread sealer (see NOTE) to the other elbow of
the Y-Hose Assembly.
NOTE
Do Not use teflon tape as a thread sealer as small
particles of the tape may break off and cause the
small gas passage to be blocked in the torch.
11. Connect the elbow fitting to the SECONDARY (Air)
1/4 NPT fitting.
12. Connect the other required plasma gases to the op-
tional Gas Control gas manifold.
A-01341
OUTPUT OUTPUT TO TO CONTROL CONTROL
MODULE MODULE
AIR AIR PLASMA PLASMA INPUT INPUT
N 2 PLASMA PLASMA INPUT INPUT
O 2 PLASMA PLASMA INPUT INPUT
PLAS MA G AS PLASMA GAS
Ar/H Ar/H 2 PLASMA PLASMA INPUT INPUT N2
Gas Control Plasma
Gas Manifold
Air (Filtered)
O
2
Ar/H2
Plasma Gas
Input Fittings
Figure 3-15 Plasma Gas Connections
13. Connect the Plasma Hose from the Plasma Gas Con-
trol Manifold to the Plasma (Air) Gas Input Fitting at
the rear of the Power Supply.
OUTPUT OUTPUT TO TO CONTROL CONTROL
MOD ULE MODULE
AIR AIR PLAS MA PLASMA
INPU T INPUT
N2 PLAS MA PLASMA
INPU T INPUT
O2 PLAS MA PLASMA
INPU T INPUT
PLAS MA G AS PLASMA GAS
Ar/H Ar/H 2 PLAS MA PLASMA
INPU T INPUT
To Plasma Gas
Input Fitting
Plasma Gas Output
From Gas Select Option
A-01343
Gas Control Option
Gas Manifold
Figure 3-16 Plasma Hose Connection From Gas
Control
14. Connect the required secondary gases the SECOND-
ARY INPUT fittings marked OTHER, N2, and SEC-
ONDARY GAS (air).
NOTE
If air is to be used as the secondary gas it should be
connected to the fitting marked SECONDARY
GAS.
If using Secondary Water connect as described in
paragraph 'C' above.
NOTE
DO NOT connect Secondary Water to the
'OTHER' secondary gas fitting.