Tweco Ultima 150 - Manual (Page 24)

SECTION 3: INSTALLATION 18 Manual 0-2472
3.10 Filling Coolant Reservoir
The Coolant Reservoir supplies the system with coolant to
cool the torch and torch parts during operation. The torch
is cooled by circulating the coolant from the built-in
recirculator through the torch leads to the torch and back
to the recirculator. The coolant is filtered and cooled be-
fore being returned to the Coolant Reservoir. Coolant level
can be maintained without removing the recirculator from
the ULTIMA-150 Plasma Welding Power Supply. The
maximum capacity of the reservoir is two gallons of cool-
ant.
The Thermal Arc ® Coolant supplied with the ULTIMA-
150 can be used in ambient temperatures down to 10° F
(-12° C). If the ambient temperature will be below 10° F
(-12° C) then Thermal Arc
® Super Coolant should be
used. This coolant can be used in areas where the am-
bient temperature drops to -34° F (-36° C).
WARNING
Never use tap water in place of Thermal Arc ® Torch
Coolant or electrolytic corrosion will occur.
1. Remove the Coolant Filler Cap from the reservoir
at the rear of the ULTIMA-150 Power Supply.
2. Carefully pour enough of the supplied Thermal
Arc ® Torch Coolant into the reservoir to fill it to
within one inch of the top.
NOTE
After operating the system more coolant may need
to be added to fill the torch leads.
3. Add Deionizer Bag to the stainless steel basket lo-
cated inside the Coolant Reservoir.
4. Reinstall the Coolant Reservoir Filler Cap.
WARNING
After operating the ULTIMA-150 Plasma Welding
Power Supply, more coolant may need to be added
to fill the torch leads.