Cod. 710.0167.01.00 Rev02
– 10.2019
© Copyright 2019 OMI Srl - All rights reserved
8
– 12
3.3 START UP
The operations specified below must be performed after the first start up and at each start up after a prolonged inactive
period of time due to maintenance operations, or any other reason.
1. Make sure that all instructions contained in chapters INSTALLATION SITE and INSTALLATION have been
observed.
2. Ensure dryer by-pass is open and air inlet/outlet valves closed. (if existing).
3. Activate power supply and press the ON/OFF switch on the control panel for at least 1 second.
(note there is a 2 minute delay before the dryer will start after the dryer is turned on).
Only on DD1300
- Turn main power switch on position 1.
- Wait for 8 hours before starting the dryer
(the warranty is not valid if this procedure is not respected).
IF THE UNIT FAILS TO START MAKE SURE THAT PHASES ARE CONNECTED CORRECTLY.
4. Wait 5 to 10 minutes until machine has achieved its standard operating parameters.
5. Slowly open the air outlet valve and successively open the air inlet valve.
6. If existent, close the air by-pass valve.
7. Check if the condensate drain is working properly.
8. Check if all connecting pipes are properly tightened and fixed.
Before disconnecting the dryer from electrical power supply, use ON/OFF switch to stop the dryer.
Otherwise wait 10 minutes before switching the dryer on again, in order to allow freon pressure
to rebalance.
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.
Clean the filter mesh of the condensate drain system.
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 (Mod. DD1300)
Replace the fan pressure switch.
In case of replacement of one or more components of the device, disposed it along the eventual
packaging of the replacement part, as reported in the point 4.3.
