Troubleshooting - Ingersoll Rand R4-11 kW Informations D'installation

This section provides basic troubleshooting information. Determination of specific causes to problems is best identified by thorough inspections performed by
personnel instructed In safety, operation and maintenance of this equipment. The chart below provides a brief guide to common symptoms, probable causes
and remedies.
SYMPTOM
Compressor will not start.
Compressor stops and will not
restart.
Compressor is stopped and will not
restart.
Compressor will not meet pressure
required by system.
Pressure produced by compressor is
too high due to speed not reducing
as demand reduces.
Compressor discharge air too hot.
80448517 Rev A
RELEASED 16/Dec/2014 10:49:53 GMT

TROUBLESHOOTING

Table 4: General Faults
CAUSE
No power supply to compressor.
Controller failure.
Starter failure.
Drive controller has tripped.
Controller has tripped the compressor.
Exceeded the maximum number of starts per hour
(6 starts).
Controller has tripped the compressor and has not
been reset.
Emergency stop has been pressed and not released.
Emergency stop has been pressed and released but
controller has not been reset.
Compressor not sized to meet system requirements
or requirements have been changed.
Air loss due to pipe, hose, joint or seal failure.
Air loss due to blowdown valve stuck open.
Air loss through pressure relief valve not seating or
set incorrectly.
Air loss due to moisture separator drain trap stuck
open.
Motor speed too low caused by drive incorrectly set.
Motor speed too low caused by fault in drive settings.
Controller fault.
Drive motor fault.
Pressure transducer faulty, incorrectly calibrated or
EMF interference.
Incorrect controller settings.
Inlet grill or ducting is blocked.
Air filter dirty or collapsed.
Inlet valve not opening fully.
Separator element dirty or collapsed.
Pipe / Hoses blocked or collapsed.
Cooler core blocked.
Minimum pressure check valve not functioning
correctly.
Equipment between compressor and customer
measuring point causing pressure drop / pressure
loss.
Controller set incorrectly.
Pressure transducer may be faulty, incorrectly
calibrated or not receiving pressure signal.
Drive settings fault.
High ambient temperature.
Insufficient cooling air.
Dirty, blocked aftercooler (cooling air side).
REMEDY
Check supply is switched on. If so, contact a qualified
electrician.
Check supply to controller. Replace controller.
Isolate supply, lock off and tag. Replace failed component
or contact your local Ingersoll Rand representative.
See Tables 5 and 6.
See Tables 5 and 6.
Must wait 1 hour before attempting to restart. Contact
your local Ingersoll Rand representative if the problem
continues.
See Tables 5 and 6.
Identify reason why, repair fault, disengage button and
reset controller.
Repair fault and reset controller.
Contact your local Ingersoll Rand representative.
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Contact your local Ingersoll Rand representative.
See Table 6.
Repair or replace.
See Table 6.
Recalibrate or replace.
Check and modify settings.
Check and clean.
Replace.
Repair or replace.
Replace.
Clean or replace.
Clean or replace.
Repair or replace.
Review system requirements.
Check and modify settings.
Recalibrate or replace.
Contact your local Ingersoll Rand representative.
Review installation and system parameters.
Check ducting and cooling air path, check direction of
blower rotation.
Clean or replace.
EN
EN-9