R90 - 160N / R90 - 160I / R90 - 160NE / R90 - 160IE
http://www.ingersollrandproducts.com
9.0 OPERATING INSTRUCTIONS
OPTIONS
Options are turned on or off and their associated values
are set using the OPTION screen.
Some options require additional machine hardware and
the correct “Option Module” to plug into the Intellisys
controller. Descriptions of the options operations can be
found later in this section. The name and value of each of
the following options can be seen by moving the list up
and down using the arrow buttons.
OPTIONS
ITEMS
RANGE
STEP
UNIT
Power Out
Restart
ON/OFF
–
–
Power Out
Restart Time
10 to 600
1
SEC
Low Ambient
ON/OFF
–
–
An Option item’s value can be changed the same way that
OPERATOR SETPOINTS values are changed.
OPTIONAL FEATURES
Modulation hardware extends the control types to
modulation (capacity control) and Automatic Control
System when the compressor switches between “On-Off
line’ and modulation as demand varies.
Safety of the operation is provided for as the compressor
will shut down if excessive temperatures, electrical
overload conditions, or system over pressure should
occur.
LOW AMBIENT OPTION (STANDARD & ENHANCED
COMPRESSORS)
When the low ambient option is installed and selected
and the A/E Discharge temperature is measured to be at
or below 2
o
C (35
o
F), the compressor will be started when
commanded but will not load until the airend discharge
temperature is above 2
o
C (35
o
F). After the conditions are
met the controller will adjust the fan speed to maintain
proper operating temperatures. When the low ambient
option is not installed, the machine will not start if the A/E
discharge temperature is below 2
o
C (35
o
F).
CAUTION
If PORO or Scheduled Start/Stop are installed,
additional hardware is required to provide an
audible warning of pending re-start.
Contact Ingersoll Rand for details
POWER OUT RESTART OPTION (PORO)
(Dependant on installed operations and/or installed
controls)
For PORO to execute , the PORO option must be installed
and the PORO set point must be set to ON. If power is lost
to the compressor while the unit is running or is stopped
in auto start/stop, the controller will store the current
opening conditions in memory.
When power is restored, the controller will energize the
horn and start a countdown on the display. The red LED
will flash indicating a warning condition and the horn will
blow for the number of seconds set in the PORO time set
point. At the end of the countdown, the horn will stop
blowing and the compressor will start.
The PORO countdown may be stopped at any time by
pressing the Stop / Reset button on the user interface.
Pressing any button will cause the horn to stop blowing
and the countdown to stop. The control will power up
normally in a ready to start mode.
