Maintenance; Troubleshooting Table - NARDI COMPRESSORI DRYER 400 Betriebsanleitung

The tubes connecting the air inlet and outlet must not transmit vibrations to the DRYER 400. Therefore it must be installed on
G the compressor or any other place using flexible hoses. Be sure that the hoses can carry a minimum load of 12 bar. Further-
more, it is necessary to install an 8-bar safety valve with a flow rate of not less than 400 l/min on the system
B
ELECTRIC LINE CONNECTION
4.03
Make sure the ground is properly connected to the plug and the electrical system and check that the voltage is correct.
5

MAINTENANCE

MAINTENANCE OPERATION
5.01
The DRYER 400 does not require special maintenance. Check weekly to see if there is moisture in the intermediate separator. If so, contact a technician.
Every two years replace the desiccant in the cartridge.

TROUBLESHOOTING TABLE

5.02
PROBLEM
The DRYER 400 is not working
Outgoing air damp
No condensate drain
CAUSE
Electric current missing
Bad fuse
Electric current too low
Compressor failure
Air intake too high
High temperature at air intake
Flow control valve defective
Desiccant material exhausted or saturated
Solenoid valve defective
Loss of pressure on the regeneration tank
Non-return valve defective
Problem with the solenoid valve
Drain silencer clogged
Flow regulator defective
Flow regulator not calibrated
8
POSSIBLE SOLUTION
Check electric line
Replace bad fuse
Check compressor
Check the pumping unit
Check room temperture
Calibrate flow regulator or replace it
Replace dryer cartridge
Replace solenoid valve
Check connections
Replace non-return valve
Replace solenoid valve
Clean the drain
Calibrate flow regulator
Calibrate flow regulator