Ingersoll-Rand NIRVANA IRN75-160K-2S - Manual (Page 95)

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S
http://air.irco.com
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11.0 FAULT FINDING
SYMPTOM FAULT REMEDY
Pressure produced
by compressor is too
highcompressor is too high
due to speed not reducing as
demand reducesreduces Intellisys set incorrectly Check and modify settings
Pressure transducer may be
faulty, incorrectly calibrated or
not receiving pressure signal Recalibrate or replace
Drive settings fault Contact your local IR representative
Compressor discharge air too
hot High ambient temperature Review installation and system parameters
Insufficient cooling air Check ducting and cooling air path, check
direction of blower rotation
Blocked aftercooler matrix Clean or replace
Compressor package produces
excessive noise Panels or doors are not closed
properly Rectify fault
Air leaks from internal pipework /
components Overhaul or replace
Blower or blower motor bearings
worn Overhaul or replace
Loose debris impacting on
blower during rotation Remove and rectify any damage
Blowdown valve stuck open Overhaul or replace
Pressure relief valve not seating
correctly Overhaul or replace
Vibration due to motor, airend or
blower imbalance Overhaul or replace
Airend requires overhaul Contact your local IR representative
Discharge air is contaminated
with coolantcoolant Scavenge pipe is blocked, broken
or o−ring is not sealing Clean or replace
Separator element is punctured,
or incorrect, or requires changing,
or not sealing correctly Replace
Incorrect coolant has been added Drain system, check for damage. Clean, refill
with correct coolant.
System has been overfilled with
coolant Check for damage, drain excess.