Introduction - Ingersoll-Rand Intellisys System Controller Operators / Instruction Manual, Parts List

1.0 INTRODUCTION

One Intellisys System Controller (ISC) can sequence
both rotary and reciprocating compressors. To do this, it
must have software EPROM version 1.1 or higher.
1.1 APPLICATION The ISC will operate any size SSR
rotary, Sierra oilfree rotary or Intellisys equipped recipro-
cating compressor. Recip units can be two, three or five
step loading, whether inlet valve or clearance pocket
controlled.
Intellisys controlled compressors connect directly to the
ISC and communicate through twisted pair cable. Rotary
non-Intellisys controlled compressors require an
Ingersoll-Rand supplied interface device to be installed
between the compressor and the ISC. An Intellisys
Retrofit Kit is available to upgrade Ingersoll-Rand recip
PHE, LLE or XLE compressors which are not presently
equipped with Intellisys.
1.2 FEATURES The ISC is capable of controlling the
loading and unloading of multiple air compressors for the
purpose of keeping a compressed air system's pressure
at or near a user set value. It is a microprocessor based,
self-contained unit that is mounted and powered inde-
pendently from any compressor.
The ISC has a variety of simple, user adjustable modes
of operation that enable it to be customized for specific
compressed air system conditions. In response to sys-
tem air pressure variations, as measured by the ISC's
own sensor, it adds or subtracts air compressors in an
order selected by the user.
There are many conveniences provided by the ISC that
simplify both its set up and use. The following list outlines
its many installation and operational features.
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1. The ISC can manage from 2 to 8 air compressors.
2. Compressors can be either Intellisys or preIntellisys
(rotary) models.
3. System air pressure control is based on a single pres-
sure point, not multiple pressure bands.
4. System air pressure settings can be user programmed
to change, based on preset time of day and day of week.
5. Load and unload delay times can be independently set
to account for air system characteristics.
6. The ISC can be located remotely from the air com-
pressors.
7. Connection to compressors is by telephone-type wire
and connectors.
8. There can be up to 8 user programmable compressor
sequences.
9. Rotation from one sequence to another can be user
programmed based on running time, time of day and day
of week, or manually.
10. The ISC will not start more than one compressor at a
time.
11. Smooth rotation of sequences will avoid disruptions
to system air pressure.
12. ISC operating parameters can be changed without
stopping the system.
13. The ISC will automatically resume operation following
a power outage.