Ingersoll Rand SSR UP6 40 Manuel D'utilisation Et D'entretien page 49

PROBLEM CAUSE
Compressor fails to
Mains power or Control voltage not available.
start
Defective Star / Delta timer.
Machine shuts down
High airend temperature.
periodically periodically
Motor overload.
Belt stretch protection (when fitted).
Line voltage variation.
High current draw
Compressor operating above rated pressure.
Separator cartridge contaminated.
Low voltage.
Unbalanced voltage.
Damaged airend.
Low current draw
Air filter contaminated.
Compressor operating unloaded.
High voltage.
Defective inlet valve.
High discharge
Defective or incorrect pressure switch setting.
pressure pressure
Load solenoid valve defective.
Blowdown valve defective.
Inlet valve malfunction.
Low system air Separator cartridge contaminated.
pressure pressure
Incorrect pressure switch setting.
Minimum pressure valve malfunction.
Load solenoid valve defective.
Blowdown valve defective.
Drive belt slipping.
Air system leaks.
Inlet valve malfunction.
System demand exceeds compressor delivery.
Safety valve blows MPV STUCK CLOSED.
when compressor goes
on load.
SAFETY VALVE FAULTY
NOTES:
§ Must be carried out by a competent electrician.
† This work is recommended to be carried out only by an Ingersoll Rand authorized service technician.
TROUBLE SHOOTING
REMEDY
§ Check incoming power supply.
§ Check the control circuit fuse.
§ Check the transformer secondary windings for the
control voltage.
§ Change Star / Delta timer.
Top up coolant.
§ Set overload to correct value and switch to manual
reset.
Change belt.
§ Ensure voltage does not drop below 10% on start up
and 6% running.
Set pressure to correct rating for machine.
Change air filter, and separator cartridge.
§ Ensure voltage does not drop below 10% on start up
and 6% running.
Correct incoming supply voltage.
† Change Airend.
Change air filter.
Set pressure to correct rating for machine.
Reduce site voltage to correct operating voltage.
† Fit inlet valve service kit.
Replace or set pressure to correct rating for machine.
† Fit load solenoid service kit.
† Fit blowdown solenoid service kit.
† Fit inlet valve service kit.
Fit new Separator cartridge.
Set pressure to correct rating for machine.
† Fit Minimum pressure valve service kit.
† Fit load solenoid service kit.
† Fit blowdown solenoid service kit.
Fit new belt and tensioner.
† Fix leaks.
† Fit inlet valve service kit.
Reduce demand or install additional compressor.
Strip MPV, examine and repair if necessary.
Check the setting of the safety valve and the
rated pressure.
SSR UP6 40, SSR UP6 50PE, SSR UP6 50PEI, HF50–PE, EP50–PE,
47
HP50–PE, HXP50–PE