Miller PU 301, Owner'S Manual, Page: 7 / 16

OM-180 231 Page 3
SECTION 2 − SPECIFICATIONS
2-1. Serial Number And Rating Label Location
The serial number and rating information for this product is located on the back. Use rating label to determine input power requirements and/or rated
output. For future reference, write serial number in space provided on back cover of this manual.
2-2. Specifications
Recirculating Coolant System For Water-Cooled GTAW Torches And GMAW Guns
Use With Guns/Torches Rated Up To 600 Amperes
3 gal (11.4 L) Coolant Tank Capacity; Maximum Cooling Capacity: 14,000 BTU/hr At 1.25 qt/min (1.2 L/min)
Dimensions: 23 in. (584 mm) Long, 12 in. (305 mm) Wide, 13-1/4 in. (337 mm) High Weight: 39 lb (18 kg)
Input Power: 100 Volts AC, 6.9 Amps, 50/60 Hz, Single-Phase Input Power
2-3. Coolant Requirements
MILLER Low
Conductivity Coolant
No. 174 599**
MILLER Aluminum Protecting
Coolant No. 174 600**;
Distilled Or Deionized Water OK
Above 32
°
F (0
°
C)
GTAW Or Where
HF* Is Used
GMAW Or Where Coolant
Contacts Aluminum Parts Or
Where HF* Not Used
Application
*HF: High Frequency Current
**MILLER coolants protect to -37
°
F (-38
°
C) and resist algae growth.
Coolant