Ingersoll-Rand IRN37-160K-CC, IRN250-300H-2S manual Or not sealing correctly, With correct coolant

11.0 FAULT FINDING

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

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S	93
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