omi EL 108, Инструкция по эксплуатации и техническому обслуживанию

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ENGLISH
Cod. 710.0151.01.00 Rev0B – 08.2012
9 - 66
4. MAINTENANCE, TROUBLESHOOTING AND DISMANTLING
4.1 MAINTENANCE
Before attempting any maintenance operation, make sure that:
1. No parts of the system is under pressure.
2. No parts of the system is electrically powered.
 WEEKLY OR EVERY 40 HOURS OF OPERATION
 Verify the temperature on the control panel display.

visually check if the condensate is drained regularly.
 MONTHLY OR EVERY 200 HOURS OF OPERATION
 Clean the condenser with a compressed air jet, taking care not to damage the cooling battery
aluminium wings.
 At the end of the above mentioned operations, check if the dryer is working properly.
 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.
4.2 TROUBLESHOOTING
NOTE: FOLLOWING BEHAVIORS ARE NORMAL CHARACTERISTIC OF OPERATION AND NOT TROUBLES:
•
Variable speed of the fan.
•
Visualization of message ESA in case of operation without load.
•
Visualization of negatives values in case of operation without load.
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.
TROUBLE DISPLAY POSSIBLE CAUSE REMEDY
W
A
T
ER
I
N
T
H
E
SYST
EM
Control panel
display is
blank
No power in the line. Restore the power in the line.
Problems with cabling. Check cabling; if the trouble persists, replace it.
Problems with the electronic control board.
Check the electronic control board; if the trouble persists,
replace it.
The dryer is off. Turn it on by pressing the ON/OFF switch for 1 second.
Dryer in stand-by. Wait 2 minutes after the dryer is switched on.
Compressed air inlet/outlet inverted.
Check if the compressed air inlet/outlet is connected
properly.
The flow rate and/or temperature of the air
entering the dryer are higher than the
nominal values.
Restore the nominal conditions.
The ambient temperature is higher than the
nominal values.
Restore the nominal conditions.
The condenser is dirty. Clean the condenser.
Condensate drain is not functioning.
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 C8 and C9 parameters of the electronic control
board; if the trouble persists, replace it.
The temperature control probe is positioned
improperly or faulty.
Check the probe; if the trouble persists, replace it.