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Idiomas disponibles
2.3
ELECTRICAL CONNECTION
DANGER
Risk of strong damages and fire on the electric
power components.
•
The power supply to the compressor side has to
be fitted for industrial equipment and fulfilling
the requirements of NFPA 79 and CSA C22.2
No.301. Any kind of operation outside of the
stated limits of NFPA 79 and CSA C22.2 No.301 is
inadmissible.
•
The electrical connection should be made by a
qualified electrician.
DANGER
High Voltage – Hazard of Electric shock, burns, or
death
Dangerous and deadly electrical voltage.
•
Work on the electrical equipment may be
performed only by specialized electrical
technicians.
WARNING
•
If local regulations are stricter than the values
given below, observe the stricter regulations.
•
Install all covers and panels before applying
power to the unit.
•
Failure to install proper fuse protection may
void the unit warranty.
•
This product must be connected to a grounded,
metallic, permanent wiring system, or an
equipment-grounding terminal or lead on the
product.
•
Provide the electrical connection and protective measures
according to VDE, BS, or local requirements. As a rule,
additional regulations from the corresponding power company
must also be complied with.
•
If other electrical circuits are run to the electronic controller
afterward, such as lighting, heating, or the like, that are not
disconnected by the main disconnect switch, then these
excepted electrical circuits must be labeled and run separately
per EN 60204. Warning labels must also be installed near the
main disconnect switch and near these circuits.
Unit Electrical Connection - The following instructions are required
when connecting power supply to unit:
1. The electrician is to bring power to the unit through the
conduit hole located on the right panel. The electrical panel
is accessible by means of opening the control panel door.
2. Refer to the electrical schematic and engineering data sheet
to size the correct disconnect / breaker and wire size.
3. Connect ground wire to Protective Earth terminal on the
control panel plate for fixed speed units.
4. For Fixed Speed units: Bring power to L1, L2, L3 on power
distribution block in control panel.
Note: For single phase applications, the termination points
are L1 and L2 and jumper should be connected from L3 to T2
of the overload.
47794362 Rev.A
RELEASED 02/Nov/2023 21:18:09 GMT
Electrical Wiring - On standard units, the compressor package is
factory wired for all connections from the starter to the motor, for
the horsepower and voltage specified on the order. Standard unit
is supplied with open drip proof protection motors and a NEMA 1
starter and controls enclosure.
Overload protection is done through direct evaluation of Amp draw
on the motor.
Electrical Wire Sizing - A certified electrician familiar with National
Electric Codes and applicable local codes shall size the electrical
power wires serving the compressor package.
Grounding - Equipment must be connected to a grounded,
metallic, permanent wiring system, or an equipment-grounding
terminal or lead on the product.
DANGER
•
Failure to properly ground the compressor
package could result in injury or death.
•
Install ground wiring in accordance with the
National Electrical Code and any applicable local
codes.
2.4
CONTROLS AND INSTRUMENTATION
General Description - The Ingersoll Rand reciprocating
compressor is pre-wired with all controls, motor, and starter for the
voltage and horsepower at the time of ordering. It is necessary
only to connect the compressor unit to the correct power supply
and to the shop airline. A standard package unit consists of the
compressor, air cooling and filtration system, ODP electric main
motor, magnetic starter, housed in an NEMA 1 enclosure, and
control components as described below.
Electronic Controller and Starter Assembly Hardware - See to
the Wiring Diagrams supplied with unit for more details on the
location of the referred hardware.
Control Transformer – A control transformer is provided to supply
120 VAC.
Fuse Blocks – Fuse blocks provide input and output side protection
for the control transformer.
Terminal Strip - This device provides an interconnection between
the controller and the low voltage hardware such as sensors and
switches within the enclosure.
Main Starter
For Fixed Speed Variant Models, a magnetic starter provides
control for the main drive motor. A bi-metallic overload relay
provides overload protection for the machine.
EN-9
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