Preventive Maintenance - Schulz ADS Serie Manual De Instrucciones

3. Start-up and shut down
Start-up (refer to paragraph Control Panel)
• Check the condenser for cleanliness.
• Turn ON the switch - position 1 on the control panel.
• Ensure that electronic instrument is ON.
• Wait a few minutes; verify that the DewPoint temperature displayed on electronic instrument is correct and that the condensate is
regularly drained.
• Switch on the air compressor.
Shut down (refer to paragraph Control Panel)
• Check that the DewPoint temperature indicated on the electronic instrument is within range.
• Shut down the air compressor.
• After a few minutes, turn OFF the switch - pos. 1 on the control panel.
NOTE: A DewPoint included in the green operating area of the electronic controller is correct according to the possible working conditions
(flow-rate, temperature of the incoming air, ambient temperature, etc.)
During the operation, the refrigerant compressor will run continuously. The dryer must remain on during the full usage period of the compres-
sed air, even if the air compressor works intermittently.
The number of starts must be no more than 6 per hour.
The dryer must stop running for at least 5 minutes before being started up again.
Frequent starts may cause irreparable damage.
The user is responsible for compliance with these rules.

11. PREVENTIVE MAINTENANCE

Only qualified personnel should perform troubleshooting and or maintenance operations.
Prior to performing any maintenance or service, be sure that :
• No part of the machine is powered and that it cannot be connected to the mains supply.
• No part of the machine is under pressure and that it cannot be connected to the compressed air system.
• Maintenance personnel have read and understand the safety and operation instructions in this manual.
Before attempting any maintenance operation on the dryer, shut it down and wait at least 30 minutes. Some components can reach
high temperature during operation. Avoid contact until system or component has dissipated heat.
Daily
• Verify that the DewPoint displayed on the electronic instrument is correct.
• Check the proper operation of the condensate drain systems.
• Verify the condenser for cleanliness.
Every 200 hours or monthly
• With an air jet (max. 2 bar / 30 psig) blowing from inside towards outside clean the condenser; repeat this operation blowing in the
opposite way; be careful not to damage the aluminum fins of the cooling package.
• Close the manual condensate drain valve, unscrew the strainer (if installed) and clean it with compressed air and brush. Reinstall the
strainer properly tight, and then open the manual valve.
• At the end, check the operation of the machine
Every 1000 hours or yearly
• Verify for tightness all the screws of the electric system and that all the "Disconnects-Tabs" type connections are in their proper position
inspect unit for broken, cracked or bare wires.
• Inspect refrigerating circuit for signs of oil and refrigerant leakage.
• Measure and record amperage. Verify that readings are within acceptable parameters as listed in specification table.
• Inspect flexible hoses, and replace if necessary.
Every 8000 hours
• Replace Electronic drainer service unit
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