Tweco 300 ACDC Arcmaster - Manual (Page 20)

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SECTION 3. INSTALLATION RECOMMENDATIONS
3.01 Environment
The ArcMaster 300 AC/DC is designed for use in adverse environments.
Examples of environments with increased adverse conditions are:
a. In locations in which freedom of movement is restricted, so that the operator is forced to
perform the work in a cramped (kneeling, sitting or lying) position with physical contact with
conductive parts.
b. In locations which are fully or partially limited by conductive elements, and in which there is a
high risk of unavoidable or accidental contact by the operator.
c. In wet or damp hot locations where humidity or perspiration considerably reduces the skin
resistance of the human body and the insulation properties of accessories.
Environments with adverse conditions do not include places where electrically conductive parts are in
the near vicinity of the operator, which can cause increased hazard, have been insulated.
3.02 Location
Be sure to locate the welder according to the following guidelines:
• In areas, free from moisture and dust. • Ambient temperature between 0 degrees C
to 40 degrees C.
•
In areas, free from oil, steam and
corrosive gases.
•
In areas, not subjected to abnormal
vibration or shock.
•
In areas, not exposed to direct
sunlight or rain.
•
Place at a distance of 12” (304.79mm) or
more from walls or similar boundaries that
could restrict natural airflow for cooling.
WARNING
Thermal Arc advises that this equipment be electrically connected by a qualified electrician.
3.03 Electrical Input Connections
WARNING
ELECTRIC SHOCK can kill; SIGNIFICANT DC VOLTAGE is present after removal of input power.
DO NOT TOUCH live electrical parts.
SHUT DOWN welding power source, disconnect input power employing lockout/tagging
procedures. Lockout/tagging procedures consist of padlocking line disconnect switch in open
position, removing fuses from fuse box, or shutting OFF and red-tagging circuit breaker or other
disconnecting device.