ESAB Heliarc 250 Instruction Manual page 7

SECTION 2
2. For access to input terminal board, remove the
screws which secure the right side access panel of
the power source. The input terminal board, Figure
2-2, is clearly marked to show the available primary
voltage connections which may be used. Set the
voltage links, on this board, to match your actual
incoming voltage. As shipped from the factory, the
input terminal board voltage links are set up to
match the highest available voltage.
ELECTRODE
TORCH
CONNECTION
DETAIL A
TYPICAL ADAPTOR
MTG. ORIENTATION
TIG TORCH
(Air Cooled)
ADAPTOR
(DET. A)
STICK
TIG TORCH
( W a t e r
Cooled)
WORK
Connect Work
To Approved
Earth Ground
(By Customer)
15 AMP/115 VAC DUPLEX & CIRCUIT
BREAKER (on Rear Panel)
SERVICE
HOSE
ADAPTOR
(DET. A)
FOOT CONTROL
FC-4 - 679662
-or-
TC-1A TORCH
CONTROL - 34718
Figure 2-1. Interconnection Diagram
3. Thread the input conductor cables from the wall
disconnect switch through the (strain relief) hole in
the rear panel (see Fig. 2-1). Secure the cables with
the strain relief coupling provided and then connect
conductors to terminals L1 and L2 (on the input
terminal board) using UL listed pressure wire con-
nectors. Connect the ground wire to the grounding
stud provided on the chassis base near the input
terminal board.
Customer's Fused Line
Disconnect Switch
OPT. WATER
KIT P/N
30459
Alternate
Connection
TORCH GAS
(Hose, 2075675 - 30-in.)
POWER CABLE/CONNECTIONS
REMOTE CURRENT CONTROL
REMOTE CONTACTOR CONTROL
WORK CABLE
TORCH WATER
WATER DRAIN
(Hose, 40V76 - 12-1/2-Ft.)
CONNECTOR - 11N16
REMOTE CURRENT HAND
CONTROL - 674209
REMOTE CONTACTOR TORCH
SWITCH - 674038
2-2
INSTALLATION
Customer's Single
Phase Line Voltage
Connections (including
"Ground")
INPUT TERMINAL BOARD
Customer's
CHASSIS Shutoff Valve
GROUND
CONNECTION
WATER COUPLING
(Hose, 40V76 - 12-1/2 -Ft.)
CONNECTOR - 11N16
GAS SUPPLY
(Hose, 40V77 - 12-1/2-Ft.)
WATER COUPLING - 11N18
7