Tweco HE-150 Coolant Recirculator - Manual (Page 2)

Date: 10/30/98 2 Manual 0-2010
STEP 4:
Replace the starter cover. Plug the starter cable into
the twist-lock receptacle marked COOLANT
RECIRCULATOR CONTROL on the torch control con-
sole or power supply.
STEP 5:
Remove the cover of the unit. Remove the temporary
yellow cap from the coolant reservoir and fill with
Thermal Arc Torch Coolant up to the level of the cross-
wires.
NOTE
It is helpful to make a splash guard out of the yel-
low cap by cutting a hole (about ½ inch in diam-
eter) in the center of it. Place it back in the tip of
the reservoir to keep coolant from splashing out of
the unit later on when removing the air from the
system.
CAUTION
Always use Thermal Arc torch coolant. If not avail-
able use deionized water with conductivity of less
than 0.1 megohm/cm.
Install the Reservoir Cap in place of the temporary
yellow cap.
STEP 6:
Connect the coolant recirculator SUPPLY and RE-
TURN to the proper fitting (COOLANT IN and
COOLANT OUT) on the control console with two wa-
ter hoses. Connect torch leads to the control console
fittings.
WARNING
Do not use pipe or metal reinforced hose for this
purpose. The fittings in the control console are
electrically hot and depend on the hose for insula-
tion.
CAUTION
If any additional fittings or connectors are used in
the coolant system they must be made of brass or
stainless steel. Other materials will contaminate
the coolant.
STEP 7:
Check for leaks and loose hose connections. Tighten
if necessary.
Front View
Motor
2 1-L1 L2 L3
Black
White
Green
Starter Coil
Top Of Starter Relay
(Box Removed)
115 VAC Single-Phase
Starter Cable
115 VAC Single-Phase or
230/460 VAC Three-Phase
Motor Cable
Used For
Three-Phase Only
2 1-L1 L2 L3
T1 T2 T3
Used For
Three-Phase
Only
Contacts Shown
For Reference
Heater Coils
Figure A Electrical Connections.