Ingersoll-Rand NIRVANA IRN75-160K-2S - Manual (Page 96)

IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & IRN 250 - 300H - 2S
http://air.irco.com
11.0 FAULT FINDING
SYMPTOM FAULT REMEDY
Discharge air is contaminated
with condensate
Aftercooler not functioning correctly Clean or replace
Moisture separator drain trap faulty Overhaul or replace
Continuous low speed / low ambient
operation causing condensate build
up
Review system requirements and
contact your local IR representative
Compressor package draws too
much current
Compressor operating above rated
pressure
Check and modify settings. Review
system requirements and contact your
local IR representative
Separator filter element dirty or
blocked
Replace
Voltage supply is low or unbalanced Contact your local IR representative or a
qualified electrician
Airend is damaged Contact your local IR representative
Excessive coolant consumption Coolant system leak Overhaul or replace
See also ‘discharge air is contaminated
with coolant’
See above
11.2 INTELLISYS FAULTS
(INDICATED ON THE INTELLISYS CONTROLLER)
FAULT CAUSE REMEDY
Emergency Stop Emergency stop button has
been pressed.
Identify reason why, repair fault, disengage button
and reset Intellisys controller
Blower motor overload Blower is blocked, damaged or
blower motor is faulty.
Remove blockage, repair or replace damaged
components
High airend discharge
temperature Compressor operating above
rated pressure
Check and modify settings. Review system
requirements and contact your local IR
representative
Low coolant level Check for leaks. See also ‘discharge air is
contaminated with coolant’. Top up coolant.
High ambient temperature Review installation and system parameters
Insufficient cooling air Check ducting and cooling air path.
Blocked coolant cooler matrix Clean or replace
Blower motor direction of
rotation incorrect
Wire correctly
Check setpoints Controller software has been
changed
Recalibrate all sensors and check setpoints