Tweco 180 Portable MIG - Manual (Page 25)

INSTALLATION FABRICATOR 140, 180
July 20, 2007 3-1 Manual 0-4991
SECTION 3:
INSTALLATION
3.01 Location
For best operating characteristics and longest unit life,
take care in selecting the installation site. Avoid locations
exposed to high humidity, dust, high ambient temperature,
or corrosive fumes. Moisture can condense on electrical
components, causing corrosion or shorting of circuits.
Dirt on components will retain this moisture and also
increases wear on moving parts.
Adequate air circulation is needed at all times in order to
assure proper operation. Provide a minimum of 12”
(300mm) of free air space at both the front and rear of
the unit. Make sure that the ventilation openings are not
obstructed.
CAUTION
The Fabricator is not suitable for use in rain.
3.02 Safety
Refer to additional installation instructions under the
SAFETY INSTRUCTIONS AND WARNINGS (Section 1) in
this manual.
3.03 Grounding
The internal frame of this welding machine should be
grounded for personal safety. Where grounding is
mandatory under state or local codes, it is the
responsibility of the user to comply with all applicable
rules and regulations. Where no state or local codes exist,
it is recommended that the National Electrical Code be
followed.
3.04 Electrical Input Requirements
Plug the input cord into a properly grounded and protected
(by fuse or circuit breaker) mains receptacle capable of
handling a minimum of 20 Amperes. The Fabricator 140
requires a 120VAC supply voltage and the Fabricator 180
requires a 230VAC supply voltage.
The Fabricator 140’s power cord is equipped with a NEMA
5-15P plug and will only connect to a NEMA 5-15P
receptacle.
The Fabricator 180’s power cord is equipped with a NEMA
6-50P plug and will only connect to a NEMA 6-50P
receptacle.
CAUTION
Consult the nameplate for proper input voltage
and input amperage. The method of
installation, conductor size, and over-current
protection shall conform to the requirements
of the local electrical code. All installation
wiring and machine connection shall be done
by a competent electrician.
The National Electrical Code (Article 630B) provides
standards for amperage handling capability of supply
conductors based on the duty cycle of the welding power
source. The Fabricator 140 has a 20% duty cycle (2
minutes of every 10 minutes can be used for welding)
and the Fabricator 180 has a 25% duty cycle. The power
cords supplied with these units comply with these
standards. Ensure that the building supply and receptacle
comply with NEC standards and any additional state and
local codes.
NOTE
The supply wiring for the welding power
source must be capable of handling a
minimum of 20 amperes. The welding power
source must be the only load connected to
the supply circuit. Poor unit performance or
frequently opening line fuses or circuit
breakers can result from an inadequate or
improper supply.
CAUTION
Do not connect the Fabricator 140 to an input
power supply with a rated voltage that is
greater than 125 Volts. Do not remove the
power cord ground prong.
CAUTION
Do not connect the Fabricator 180 to an input
power supply with a rated voltage that is
greater than 250 Volts. Do not remove the
power cord ground prong.