Installation; Welder Specifications; Site Selection; Power Source Connection - Forney 220 ST Pro Operating Manual

Stick/tig arc welder
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Installation

Welder Specifications

Primary (Input) Volts
Maximum Output
Phase
Frequency
Recommended Circuit Breaker
Extension Cord Recommendations
Generator Requirements
CSA Rated Output and Duty Cycle
Dimensions
Recommended Electrode Diameter

Site Selection

BE SURE TO LOCATE THE WELDER ACCORDING TO THE FOLLOWING GUIDELINES:
In areas free from moisture and dust;
In areas with ambient temperature between 30° to 90°F;
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" or more from walls or similar obstructions that could restrict natural air flow for cooling.

Power Source Connection

Before you make any electrical connection, make sure that the ON/OFF SWITCH is OFF, power supply voltage and
frequency available at site are those stated in the ratings label of your welder.
The main power supply voltage should be within ±10% of the rated main power supply voltage. Too low a power supply
voltage may cause poor welding performance. Too high a power supply voltage will cause components to overheat and
possibly fail. The welder outlet must be
Correctly installed, if necessary, by a qualified electrician;
Correctly grounded (electrically) in accordance with national and local regulations;
Connected to an electric circuit that is rated for sufficient amperage per the ratings label of your welder.
If you are unsure of any of the above, have your outlet inspected by a qualified electrician before using the welder.
NOTE:
Periodically inspect INPUT POWER CABLE for any cracks or exposed wires. If it is not in good condition, have it
repaired by a Service Center.
Do not cut off the grounding prong or alter the plug in any way. Only use the included adapter between the welder's
INPUT POWER CABLE and the power source receptacle.
Do not violently pull the INPUT POWER CABLE to disconnect it from power outlet.
Do not lay material or tools on the INPUT POWER CABLE. The INPUT POWER CABLE may be damaged and result in
electrical shock.
Keep the INPUT POWER CABLE away from heat sources, oils, solvents or sharp edges.
Do not use this welder on a circuit with a Ground Fault Circuit Interrupter (GFCI) on it. GFCIs are tripped by welding
arcs and your welding operations will be interrupted regularly.
10
230/120VAC
220A (DC output only)
Single
50/60Hz
50A for 230V or 30A for 120V
230V- 3 conductor # 8 AWG
120V -3 conductor #12 AWG or larger up to 25 ft.
230V -Minimum 10,000W continuous output with no low-idle
function (or low-idle off), 5% THD Max.
120V- Minimum 5,000W continuous output with no low-idle
function (or low-idle off), 5% THD Max.
Refer to the data plate of your machine and the DUTY CYCLE
section of this manual, page 14.
17.5" (444.5mm) X 7" (177.8mm) X 12.5" (317.5mm)
Up to 3/16" (depending on type)
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