Ingersoll-Rand XHP900CM, Operating, Maintenance & Parts Manual

Page: 22 / 77

Manual No. 54771142 (7/01) (
22
) 07/18/01
Be sure no one is IN or ON the compressor
unit.
Do NOT operate machine with guards
removed.
Do NOT operate machine with any access
panel open. Unit will quickly overheat.
Do NOT operate machine with safety shutdown
switches bypassed.
STARTING/OPERATING
•
Close service valve.
•
Engage main driver.
•
Allow compressor to run unloaded five (5)
to ten (10) minutes.
•
Compressor is now ready to furnish
compressed air when service valve is
opened.
STOPPING
•
Close air service valve(s).
•
Allow the unit to run at “no load” for 3 to 5
minutes to reduce the compressor
temperature.
•
Disengage main driver.
NOTE: Once the drive motor stops, the
automatic blow-down valve will begin to
relieve
all pressure from the receiver
separator system.
CAUTION
Never allow the unit to sit stopped with pressure in
the receiver separator system. As a precaution,
after the automatic blow-down period (2 minutes),
open the manual blow-down valve.
EQUIPMENT PROTECTION
NOTE: Do NOT wire around or bypass a
shutdown sensor or switch.
This unit is protected by two (2) shutdown
switches at the following locations:
High Discharge Air Temperature-
(1) At the airend outlet.
(2) In the safety valve connection on the
separator tank.
GAUGE PANEL
Operating Instruments
1. Compressor Discharge Pressure
Gauge
Indicates pressure in receiver tank, psig (kPa).
2. Discharge Air Temp. Gauge
Indicates discharge air temperature in
°
F and
°
C.
Normal operating range: 185
°
F/85
°
C to
248 ° F/120 ° C.
3. Air Filter Restriction Indicator
Indicates compressor air cleaner restriction.
Normal operation (<20 in. H
2
O), green flag
Needs service (
≥
20 in. H
2
O), red flag.
CAUTION
1
2
3