Maintenance, Troubleshooting; Maintenance; Troubleshooting - Ingersoll Rand UP 20HP Manuel De L'opérateur

4. MAINTENANCE, TROUBLESHOOTING AND DECOMMISSIONING

4.1 MAINTENANCE

Attention! Perform pressure test with inert gases only (helium, nitrogen).
Before attempting any maintenance operation, make sure that:
1. No parts of the system are under pressure.
2. No parts of the system are electrically powered.
WEEKLY OR EVERY 40 HOURS OF OPERATION
Verify the temperature on the control panel display is acceptable.
Visually check if the condensate is drained regularly.
MONTHLY OR EVERY 200 HOURS OF OPERATION
Clean the condenser with compressed air, taking care not to damage the condenser fins..
At the end of the above mentioned operations, check if the dryer is working properly.
Check the condition of any filters installed with the dryer. Replace elements as needed.
YEARLY OR EVERY 2000 HOURS OF OPERATION
Check if the flexible tube used for condensate drainage is damaged and replace it if necessary.
Check if all connecting pipes are properly tightened and fixed.
At the end of the above mentioned operations, check if the dryer is working properly.
EVERY 24 MONTHS OR EVERY 4000 HOURS OF OPERATION
Replace the fan pressure switch.

4.2 TROUBLESHOOTING

TROUBLE
No power in the line.
Problems with cabling.
Compressed air inlet/outlet inverted.
The flow rate and/or temperature of the air entering
the dryer are higher than the nominal values.
The ambient temperature is higher than the
nominal values.
The condenser is dirty.
Condensate drain is not functioning.
Problems with cabling or with the electronic control
board.
Activation of compressor's internal thermal
protection.
Problems with the electrical components of the
compressor.
Defective compressor.
The flow rate and/or temperature of the air entering
the dryer are higher than the nominal values.
The ambient temperature is higher than the
nominal values.
The condenser is dirty.
Cod. 710.0048.20.00 Rev02B – 04.2017
Troubleshooting and eventual control and/or maintenance operations must be
performed by qualified personnel.
For maintaining the refrigerating circuit of the machine, contact a refrigeration engineer.
POSSIBLE CAUSE REMEDY
Restore the power in the line.
Check cabling; if the trouble persists, replace it.
Check if the compressed air inlet/outlet is connected
properly.
Restore the nominal conditions.
Restore the nominal conditions.
Clean the condenser.
Clean the condensate drainage system pre-filter. (Pic.3)
Replace the coil of the drainage solenoid valve if
burned.
Clean or replace the drainage solenoid valve if
clogged/jammed.
Check the cabling and the electronic control board, if
the trouble persists, replace them.
Wait one hour and check again. If the fault persists:
stop dryer and call your local Ingersoll Rand distributor.
Check the electrical components of the compressor.
Replace the compressor.
Restore the nominal conditions.
Restore the nominal conditions.
Clean the condenser.
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