Tweco 400 Ultra-Cut(May 2014) - Manual (Page 46)

ULTRA-CUT 100 XT/200 XT/300 XT/400 XT
3-22 INSTALLATION Manual 0-5302
NOTE
There are holes added in the rear panel for customer wiring. This, rather than the one in the CCM will be the preferred
place for customer added wiring (and strain relief) for connections to height controls, etc..
3.17 HE400 COOLER
Used in series with the existing cooling system of the Ultra-Cut XT™ series power supplies, the HE400 Cooler provides neces-
sary additional water cooling for the torch head when cutting at over 300amps. The HE400 fan is thermally controlled to operate
whenever the Ultra-Cut fan and pump is on and the coolant temperature is above a predetermined level. It may come on anytime
while the main pump is operating.
!
WARNING
Do not disassemble the Cooler with the power applied or the coolant flowing. Dangerous 220 AC voltages and high
pressure liquid are present.
Locate the Cooler so that there is adequate ventilation in front of and behind the unit and do not place or stack anything on top
of the unit.
2’ (0.6 m)
2’ (0.6 m)
3”
76 mm
3”
76 mm
Art # A-09623
NOTE
Ensure the four coolant lines described below are connected and leak free before connecting power to J71.