Tweco XTTM-300 - Manual (Page 24)

INSTALLATION 3-12 Manual 0-2912
INCLUDES AUTO GAS BOX VERSION
PLASMA SHIELD
N2
AUX
A
AUX
B
B
O 2
No
Change Switch
to O2 position.
PLASMA GAS SELECTION
AIR
O 2 H35&N 2
ALL MANUAL GAS BOXES
AUTO GAS BOX VERSION
INCLUDES
A
PLASMA GAS SELECTION
AIR
O 2 H35&N 2
PLASMA SHIELD
N2
AUX
A
AUX
B
O 2
Version A Version B
Compare to Gas Control Console Switches
In Version A installations:
Is the Plasma Gas Selector switch
in the O2 position?
In Version B installations:
Is the Plasma Gas Selector switch
in the O2 position?
Yes Yes
Art # A-06409
PLASMA GAS SELECTOR
AIR
O 2 H35&N 2
ALL MANUAL GAS BOXES
AUTO GAS BOX VERSION INCLUDES
INCLUDES AUTO GAS BOX VERSION
PLASMA SHIELD
N2 AUX
A
AUX
B
A
B
O 2
Underside of Pre-Charge Unit
PLASMA GAS SELECTOR
AIR
O 2 H35&N 2
ALL MANUAL GAS BOXES
AUTO GAS BOX VERSION INCLUDES
INCLUDES AUTO GAS BOX VERSION
PLASMA SHIELD
N2
AUX
A
AUX
B
A
B
O 2
Underside of Pre-Charge Unit
Check underside of Plasma Pre-Charge Unit Check underside of Plasma Pre-Charge Unit
PLASMA SHIELD
O 2 AUX
A
AUX
B
N2
TEST TEST
RUN
PREFLOW
(4, 5)
CUTFLOW
(1, 2, 3)
HD3070 5-KNOB AUTO BOX SWITCH SETTINGS
PLASMA GAS SELECTION
O 2 H35 & N2
TEST TEST
RUN
PREFLOW CUTFLOW
HD3070 6-KNOB AUTO BOX SWITCH SETTINGS
AIR
Green Light
No
Is the Pre-Charge Unit switch
in the B position?
Change Switch
to B position.
Yes No
Is the Pre-Charge Unit switch
in the A position?
Change Switch
to A position.
Yes
Is the green
light ON?
Green Light
PLASMA
(AUX A)
(AUX B)
O 2
N 2
SHIELD
HD3070 3-KNOB MANUAL BOX
No
Change Switch
to O2 position.
Is the green
light ON?
All switches are
set properly.
Yes
All switches are
set properly.
Yes
3.07 Oxygen Plasma Pre-Charge Unit Operational Check
THE PRE-CHARGE UNIT INCLUDES A GREEN LIGHT TO INDICATE THAT THE SYSTEM IS PRE-CHARGING
THE TORCH LEADS WITH OXYGEN. Follow the steps shown to confirm that switches on the gas console and on
the pre-charge unit are set properly. DO NOT OPERATE the system unless all gas control switches are set properly.