General Requirements; Electrical Connections - Ingersoll Rand 2340 Manuel De L'utilisateur

NOTICE
All compressed air systems generate condensate which
accumulates in any drain point (e.g. tanks, filters, drip legs,
aftercoolers, dryers). This condensate contains lubricating
oil and/or substances which may be regulated and must be
disposed of in accordance with local, state, and federal laws and
regulations.

GENERAL REQUIREMENTS

•
Use flexible piping at the compressor's discharge connection.
•
Use hard-welded or threaded steel or copper pipes and cast
iron fittings along the remaining air discharge line.
•
Slope the piping downward in the direction of airflow to
permit condensate to drain properly.
•
Use pipe thread sealant on all threads, and secure joints
tightly to prevent air leaks.
CONDENSATE DISCHARGE PIPING.
If installing a condensate discharge line, the piping must be at least
one size larger than the connection, as short and direct as possible,
secured tightly and routed to a suitable drain point or waste container.
Condensate must be disposed of in accordance with local, state, and
federal laws and regulations.
WARNING
If an aftercooler, check valve, block valve, or any other
restriction is added to the compressor discharge, install a
properly-sized ASME approved safety/relief valve between the
compressor discharge and the restriction

ELECTRICAL CONNECTIONS

PERMANENTLY CONNECTED ELECTRIC COMPRESSORS
WARNING
Electrical installation and service must be performed by a
qualified electrician who is familiar with all applicable electrical
codes.
GENERAL. The motor rating, as shown on the motor nameplate, and
the power supply must have compatible voltage, phase and hertz
characteristics.
WIRE SIZE. The electrical wiring between the power supply and
electric motor varies according to motor horsepower and other
factors. Install adequately sized power leads to protect against
excessive voltage drop during start-up. Refer to the applicable electric
codes in your area for information on selecting the proper wire
size and securing electrical connections. If you connect additional
electrical equipment to the same circuit, consider the total electrical
load when selecting the proper wire size. DO NOT USE UNDERSIZE
WIRE.
MAGNETIC STARTER. If the motor installed on your compressor has
a motor reset button, it does not require a magnetic starter. If the
motor does not have this button and the compressor does not have
a factory-installed starter, install a magnetic starter with thermal
overload protection. Follow the manufacturer's instructions for
installation. Ingersoll Rand cannot accept responsibility for damages
arising from failure to provide adequate motor protection.
FUSES. Refer to applicable local codes to determine the proper fuse
or circuit breaker rating required. When selecting fuses, remember the
momentary starting current of an electric motor is greater than its full
load current. Time delay or "slow-blow" fuses are recommended.
22607402 Rev.F
RELEASED 15/Mar/2018 20:10:54 GMT
GROUNDING. In the event of an electrical short circuit, grounding
reduces the risk of electric shock by providing an escape wire for the
electric current. Ground terminals are identified with a ground symbol
and/or the letters "G", "GR" or "PE" (Potential Earth).
Compressors equipped with motor starters include a ground terminal
inside the starter enclosure. For compressors with single-phase
motors having thermal overload protection and no motor starter, the
ground terminal is located inside the pressure switch. Ground must
be established with a grounding wire sized according to the voltage
and minimum branch circuit requirements printed on the compressor
specifications decal. Ensure good bare metal contact at all grounding
connection points, and ensure all connections are clean and tight.
A – To/from motor (factory connection)
B – To/from pressure switch (factory connection)
C – To/from power supply (customer connection)
Ground wires not shown for clarity. Equipment must be properly
grounded.
Ground Symbol
WARNING
Improper grounding can result in electrical shock and can cause
severe injury or death. This product must be connected to a
grounded, metallic, permanent wiring system or an equipment-
grounding terminal or lead. All grounding must be performed by
a qualified electrician and comply with applicable electric codes.
NOTICE
Verify grounding connections after initial installation and
periodically thereafter to ensure good contact and continuity
has been maintained. Consult with a qualified electrician
or service technician if the grounding instructions are not
completely understood, or if in doubt as to whether the product
is properly grounded.
Starter wiring
EN-7