Tweco HE-150 User Manual
Manual 0-2010
HE-150
Coolant Recirculator
Installation Instructions
SPECIFICATIONS
A. Pump Performance:
4 gallons per minute at 125 psi
B. Heat Exchanger Performance:
65,000 BTU/hr (Rating based on 100°F ambient air
and 40°F difference between high and low coolant
temperature)
C. Motor Power requirements:
1. Single Phase:
115 VAC - 60 Hz.
230 VAC - 60 Hz.
230 VAC - 50 Hz.
2. Three Phase:
230/460 VAC - 60 Hz.
230 VAC - 50 Hz.
D. Starter:
115 VAC - 60 Hz.
E. Operating Current:
15.8 Amps
F. Dimensions:
INSTALLATION
WARNING
Disconnect primary power before making electrical connections.
STEP 1:
Unpack equipment. Check red tag to be sure unit is
connected for proper input operating voltage. If voltage is changed, motor connections must be changed
(see diagram on motor housing) and if unit is
equipped with a starter, the heater coils in the magnetic starter must be exchanged (alternate heater coils
are supplied with unit).
STEP 2:
Motor connections are made by passing a 4-conductor 230/460 volt or a 3-conductor 115 volt cable
through one of the strain relief fittings on the bottom
of the Starter Box and connecting the leads to terminals L1, L2, L3 (for three-phase units) or to terminals
L1 and L2 (for single-phase units). The ground (green)
wire for both units must be grounded to the stud on
the lower left side of the starter relay box.
If the unit is not equipped with starter proceed to Step
5.
24.5 inches (High) x 32 inches (Wide) x 18 inches
(Deep)
G. Weight:
120 lbs
Date: 10/30/98 1 Manual 0-2010
STEP 3:
If the starter cable is not already connected, pass the
Starter cable line through the strain relief fitting on
the bottom left of starter box and connect the black
wire lead to the left side of the coil and the white wire
lead to the right side of the coil. Connect the ground
(green) wire to the same ground stud mentioned
above.
NOTE
Refer to Figure A for the correct motor and starter
connections.
Contacts Shown
For Reference
Front View
2 1-L1 L2 L3
Top Of Starter Relay
(Box Removed)
115 VAC Single-Phase
Starter Cable
Black
Starter Coil
Heater Coils
T1 T2 T3
Motor
Figure A Electrical Connections.
STEP 4:
Replace the starter cover. Plug the starter cable into
the twist-lock receptacle marked COOLANT
RECIRCULATOR CONTROL on the torch control console 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 crosswires.
NOTE
It is helpful to make a splash guard out of the yellow cap by cutting a hole (about ½ inch in diameter) 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 available use deionized water with conductivity of less
than 0.1 megohm/cm.
Install the Reservoir Cap in place of the temporary
yellow cap.
Used For
Three-Phase
Only
Green
White
2 1-L1 L2 L3
Used For
Three-Phase Only
115 VAC Single-Phase or
230/460 VAC Three-Phase
Motor Cable
STEP 6:
Connect the coolant recirculator SUPPLY and RETURN to the proper fitting (COOLANT IN and
COOLANT OUT) on the control console with two water 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 insulation.
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.
Date: 10/30/98 2 Manual 0-2010
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