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Cod. 710.0167.01.00 Rev02 

– 10.2019 

© Copyright 2019 OMI Srl - All rights reserved

 

– 12

 

 

 

 

 

 

1.  Only qualified personnel shall be permitted to adjust, perform maintenance or repair this air dryer. 

2.  Read all instructions completely before operating unit. 

3.  Pull main electrical disconnect switch and disconnect any separate control lines, if used, before attempting to work 

or perform maintenance on the unit. 

4.  Do not attempt to service any part while machine is in an operational mode. 

5.  Do not attempt to remove any parts without first relieving the entire air system of pressure. 

6.  Do  not  attempt  to  remove  any  part  of  the  refrigeration  system  without  removing  and  containing  refrigerant  in 

accordance with the EPA and local regulations. 

7.  Do not operate the dryer at pressures in excess of its rating. 

8.  Do not operate the dryer without guards, shields and screen in place. 

9.  Inspect unit daily to observe and correct any unsafe operating conditions. 

2. INSTALLATION 

2.1 ACCEPTANCE  AND HANDLING 

Upon receiving your OMI air dryer, please inspect the unit closely. If rough handling is detected, please note it on your delivery receipt, 
especially if the dryer will not be uncrated immediately. Then obtain the freight carrier's signed agreement to any noted damages:  this 
is a precondition for any insurance claims by the customer. 

It is mandatory to keep the dryer always in vertical position, as indicated by the symbols present on the packaging. For handling, use 
devices having sufficient capacity for the weight of the machine. 

Remove the packaging after having positioned the dryer in the installation site. For unpacking, refer to section 2.3. 

Under no circumstances should any person attempt to lift heavy objects without proper lifting equipment (i.e., crane, hoist, slings or fork 
truck). Lifting any unit without proper lifting equipment, may cause serious injury. Use fork lift channels where provided. 

 

2.2 STORAGE AND INSTALLATION LOCATION 

If not in use, the dryer can be stored in its packaging in a dust free and protected site between 32°F (0°C) and 120 °F (50 °C), and a 
specific humidity not exceeding 90 %. Should the stocking time exceed 12 months, please contact your local OMI authorized distributor. 

 

 

If the dryer is not used, it will be placed in a site with the following conditions: 

 

 

The machine must be protected from atmospheric agents and not directly exposed to sun light. 

 

A seating base flat and capable to hold the weight of the machine. 

 

Ambient temperature complying with the nominal data of the dryer. 

 

The dryer should be located in a clean area, without forced air draft that can affect the fan control system. 

 

Make sure to leave sufficient clearance (20 inches, 500 mm) around the dryer in order to allow an adequate cooling 
of the machine and for maintenance and/or control operations. 

 

The incoming air must be free from smoke or flammable vapours which could lead to explosion or fire risks. 

2.3 UNPACKING 

The packaging is made of carton or of cellophane. We recommend that you keep the original packaging for the device in case it has to 
be transported to another location or sent to a service center. Dispose the various packaging materials in compliance with the relevant 
rules locally in force. 

 

 

unpack the device, removing the strapping from the carton. Always wear safety gloves when using scissors or other tools to cut 
the straps or the cellophane; 

 

remove the carton or the cellophane; 

 

in case it’s necessary another handling of the device, refer to section 2.1; 

 

remove the pallet (if present); 

 

remove the operating manual, accessories and key from the device. 

 
 

 

Summary of Contents for DD36

Page 1: ...67 01 00 Rev02 10 2019 Copyright 2019 OMI Srl All rights reserved 1 11 DIRECT EXPANSION COMPRESSED AIR DRYERS Operators Manual DD36 DD54 DD72 DD108 DD144 DD180 DD216 DD280 DD340 DD500 DD610 DD750 DD10...

Page 2: ......

Page 3: ...discharge parameters programming 6 3 1 3 Anomaly warning 7 3 1 4 Remote signalling alarm 7 3 2 Before start up 7 3 3 Start up 8 4 MAINTENANCE TROUBLESHOOTING AND DISMANTLING 4 1 Maintenance 8 4 2 Trou...

Page 4: ...Cod 710 0167 01 00 Rev02 10 2019 Copyright 2019 OMI Srl All rights reserved...

Page 5: ...r attention to the risk of electric shock Condensate drain point Rotation direction of the fan Pay particular attention to the risk of moving parts Explosion risk Lifting point Don t lift from this po...

Page 6: ...counterflow the initial air air exchanger and it is reheated by the inlet hot air with the consequence of energy recovering and also reduction of the relative humidity contained in the outflowing air...

Page 7: ...mpt to lift heavy objects without proper lifting equipment i e crane hoist slings or fork truck Lifting any unit without proper lifting equipment may cause serious injury Use fork lift channels where...

Page 8: ...ective device to protect the equipment at high temperature from the risk of exceeding the maximum allowable temperature 3 START UP Ensure that the dryer is by passed or there is no load on the cooler...

Page 9: ...LING LEDS DD1300 DISPLAY DESCRIPTION the unit is in ENERGY SAVING mode the unit is ON with low load the unit is ON with normal load the unit is ON with normal high load the unit is ON with high load L...

Page 10: ...disconnect the electrical power before performing any operation on the machine 3 1 2 CONDENSATE DISCHARGE PARAMETERS PROGRAMMING Push the SET key for 10 seconds to enter the parameters configuration...

Page 11: ...d alarms Alarm output ON Refrig Compressor output OFF Fan output ON Drain cycle standard Call your local OMI distributor Note PF1 has priority on all other messages 3 1 4 REMOTE SIGNALING ALARM OPTION...

Page 12: ...N 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 MAINTEN...

Page 13: ...the condensate drainage system filter mesh 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 th...

Page 14: ...ouble persists replace it Contact our Service Centre to check the gas charge Clog Check if the compressed air inlet outlet is connected properly Check if the connecting tubing is clogged in case proce...

Page 15: ...ctricity supply to the dryer and then affix appropriate warning signs to avoid the machine being reconnected to the electricity mains Please consult the contents and the safety instructions in the rel...

Page 16: ...nts Coefficient z 0 7 Table 5 6 1 Tickness allowance c 0 mm For copper Not required for surfaces in contact with freon EN 14276 1 c 1 mm For carbon steel Manufacturer design code 717 0012 01 00 Essent...

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