Tweco 400 Ultra-Cut XT Plasma Cutting System - Manual (Page 50)

ULTRA-CUT 100 XT/200 XT/300 XT/400 XT
3-22 INSTALLATION Manual 0-5297
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 necessary 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 volt-
ages 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.