POWER SUPPLY SETUP
2-14 powermax
65/85
Service Manual
Prepare the gas supply
The gas supply can be shop-compressed or cylinder-compressed. A high-pressure regulator must be used on either
type of supply and must be capable of delivering gas to the air inlet on the power supply.
If the supply quality is poor, cut speeds decrease, cut quality deteriorates, cutting thickness capability decreases, and
the life of the consumables shortens. For optimal performance, the gas should be compliant with ISO8573-1:2010,
Class 1.2.2 (that is, it should have a maximum number of solid particulate per m
3
of <20,000 for particle sizes in the
range of 0.1-0.5 microns, <400 for particle sizes in the range of 0.5-1 microns, and <10 for particle sizes in the range
of 1-5 microns). The maximum water vapor dew point should be <-40° C (-40° F). The maximum oil (aerosol, liquid, and
vapor) content should be less than 0.1 mg/m3.
Additional gas filtration
When site conditions introduce moisture, oil, or other contaminants into the gas line, use a 3-stage coalescing filtration
system, such as the Eliminizer filter kit (part number 128647) available from Hypertherm distributors. A 3-stage filtering
system works as shown below toclean contaminants from the gas supply.
Gas supply
Powermax65
Powermax85
Water and particle filter
Oil filter Oil vapor filter
The filtering system should be installed between the gas supply and the power supply. Additional gas filtration may
increase the required minimum inlet pressure.
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