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C950 PLANNING & INSTALLATION MANUAL
TP0029 Rev5
Ó
2000 Ingersoll-Rand Company
Date of Revision: 15 August, 2000
Starter Interface
Remote starters require two interface points:
1. A feedback circuit, which indicates a running condition, is connected to the control
circuits inside of the compressor's control panel. This is done by the customer.
2. The starter’s on/off circuit is connected with the panel’s start control relay. Local start
pushbuttons on the starter should not be used. The starter’s 120 VAC control circuit
should be connected to the control panel start circuit. Do not exceed 720 VAC. The
circuit must be wired in series with the starter. The starter must not be powered by any
other source other that Ingersoll-Rand’s control panel.
Motor Connections
Three-phase power must be connected to the starter and the three-phase wiring must also
be connected from the starter to the main motor. The motor will be furnished with leads
terminating in a junction box on the side of the motor to which the three-phase wiring from
the starter is to be terminated. Refer to the main motor nameplate and manufacturer’s data
sheet to properly size the three-phase wiring that connects the starter to the motor. The
customer should ensure that the incoming voltage matches the voltage on the main motors
nameplate. Before wiring and applying power to the main motor, it must be meggered to
ensure the integrity of the insulation.
Heater Contactor
This device is required for operation of the oil reservoir heater. It must be sized according to
the electrical information found on the oil reservoir heater nameplate. Ingersoll-Rand
supplied oil reservoir heaters have thermostats mounted within the housing for “pilot” type
operation of the contactor. Ingersoll-Rand supplied contactors are mounted inside the
control panel enclosure.
Prelube Pump Starter
This device is required for operation of the prelube pump driver. It must be sized according
to electrical information found on the prelube pump motor nameplate. Ingersoll-Rand
supplied prelube pump starters are mounted inside the control panel enclosure.
WARNING
Do not disconnect secondary wiring during operation. Anytime secondary side
of the current transformer is disconnected from its load, a jumper must be placed
across secondary terminals to prevent injury or death of personnel and/or damage to
equipment.
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90.10_Pre-Installation and Operation Manual
