Thermal Dynamics Econo-Pak 50, Operating Manual

Page: 19 / 40

Manual 0-2450 13 INSTALLATION
3.03 GAS CONNECTIONS (Continued)
To use shop air from a compressor, refer to Figure 3-A and:
Air supply must be free of oil, moisture, and other contaminants.
Excessive oil and moisture may cause double-arcing, rapid tip
wear, or even complete torch failure. Contaminants may cause
poor cutting performance and rapid electrode wear.
1. Install an air filter assembly to the gas input fitting on the
front panel of the power supply. The air filter is supplied
with 1/4 NPT gas couplings. A quick disconnect fitting is
recommended on the filter body cap to allow easy connection
to the compressed air source.
2. Connect the air supply hose to the inlet fitting on the air filter
body cap.
When connecting a gas fitting to the filter cap, hold the cap flats
with a wrench. Over tightening the cap on the filter body can
damage the filter cartridge or cap gasket.
Air filter cartridge (Part No. 7-0252) should be replaced every 30
days, depending on the condition of the compressed air. If a
noticeable drop in air pressure occurs, the filter has become filled
with contaminants and must be replaced.
To replace cartridge, unscrew filter cap from body, slide out old
cartridge and insert new filter element. The filter cartridge fits
only one way. Filter cap must be hand tight only.
Supply hoses must be at least #4 hose (1/4 in or 6.4 mm mini-
mum inside diameter).
Figure 3-A Air Line Filter Gas Connections
CAUTION
Replacing Filter
Cartridge
NOTE
Using the System with Cylinder Air Using the System with Shop Air
Connect to
Front Panel 1/4 NPT
Gas Fitting
Optional
Air Line Filter
Assembly
Supply Hose
from Source
(1/4 NPT)
Supply Hose
from Regulator
(1/4 NPT)
Connect to
Front Panel 1/4 NPT
Gas Fitting
Filter Cap
AIR FLOW
A-00786