Ingersoll-Rand X41 technical manual Pressure Sensor Connection

PRESSURE SENSOR CONNECTION

The pressure sensor connects to terminal X05 of the X4I terminal PCB using a shielded 18 AWG maximum 2-

conductor cable no more than 330 feet (100 meters) in length. The transducer threads are BPT. It is the equivalent of ¼” NPT.

Pressure Sensor Wiring and Location

Wire polarity is important.

IR-PCB INTERFACE MODULE

The IR-PCB is designed to interface a compressor with the X4I using a 7-conductor shielded cable or individual wires run through grounded conduit no greater than 330 feet (100 meters) in length.

Each compressor in the system must be assigned a unique identification number from 1 up to the number of compressors in the system. The identification number should be clearly indicated on each compressor for operational reference.

For each compressor utilizing an IR-PCB, connection to the X4I the signal wires must be made to the correct X4I terminals for that compressor number. Compressor 1 should be wired to terminal X01 on the terminal PCB, Compressor 2 should be wired to terminal X02 on the terminal PCB, etc.

IR-PCB Interface Module

The IR-PCB is a DIN rail mountable module designed to be installed within the compressor starter enclosure.

Each air compressor must be equipped with a load/unload regulation system and, if not regulated with a single electro-mechanical pressure switch, have a facility for a remote load/unload control with the ability to accept a volt-free switching contact input for remote load/unload. Each air compressor must have Auto Restart capability.

V For variable speed compressor(s) equipped with a “variable/fixed” digital input function, install a 7- conductor shielded cable from the IR-PCB to the X4I.

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