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omi DD144 - User Manual

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Cod. 710.0167.01.00 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
DD1000
DD1300

Table of Contents

Questions and Answers

  • B
    Brian RobinsonAug 21, 2025
    Why is the pressure in the line low on my omi DD144 Dehumidifier?
    • A
      Andrea AguilarAug 21, 2025
      If the pressure in the line of your OMI Dehumidifier is low, check for ice formation in the evaporator and inspect the electronic control board; replace if necessary. It is also recommended to check the gas charge by contacting our Service Centre. Ensure the compressed air inlet/outlet is connected properly, and that the connecting tubing is not clogged. Verify that all valves are open and check the condition of any filters. If air flows continuously through the condensate drainage, clean or replace the drainage solenoid valve. Verify the condensate drainage times set on the electronic control board (C8 and C9). Check the signal from the control board, and if it is continuous, replace the control board.
  • N
    Nathan MyersNov 7, 2025
    What to do if there is water in my omi DD144 Dehumidifier system?
    • B
      Bruce ChandlerNov 7, 2025
      If there is water in the OMI Dehumidifier system, several issues could be the cause. First, ensure that there is power in the line. If phases are connected incorrectly, correct them. Check the cabling and the electronic control board, and replace if necessary. Make sure the dryer is on and not in standby mode (wait 2 minutes after switching on). Verify that the compressed air inlet/outlet is connected properly, and that the air flow rate, temperature, and ambient temperature are within nominal values. Clean the condenser and the condensate drainage system filter mesh. Check the temperature control probe and replace if faulty. Reset the high pressure switch. If the compressor’s internal thermal protection has activated, wait one hour and check again; otherwise, contact your local OMI distri...

Summary

SYMBOLS AND LABELS USED IN THE MANUAL AND ON THE DRYER

Hazard and Safety Symbols

Critical Cautionary Notes

Prominent warnings and safety precautions for operation and maintenance.

1. GENERAL INFORMATION

1.1 FUNCTIONAL DESCRIPTION

1.2 USE OF THE MACHINE IN SAFE CONDITIONS

Covers safe operating procedures and compliance with safety directives.

2. INSTALLATION

2.4 INSTALLATION

Detailed instructions for connecting the dryer to compressed air lines and electrical supply.

3. START UP

3.1 CONTROL PANEL

Overview of the electronic control system and its components.

3.1 CONTROL PANEL

Display Visualization and Signalling LEDs (DD36 + DD1000)

3.1.1 KEYS FUNCTION

Description of the functions of each key on the control panel.

3.1.3 DISPLAY INDICATIONS

Information on error messages, their causes, outputs, and corrective actions.

Display Visualization and Signalling LEDs (DD1300)

3.1.2 CONDENSATE DISCHARGE PARAMETERS PROGRAMMING

3.2 BEFORE START UP

3.3 START UP

4. MAINTENANCE, TROUBLESHOOTING AND DECOMMISSIONING

4.1 MAINTENANCE

Schedule and procedures for routine maintenance tasks.

4.2 TROUBLESHOOTING

5. SAFETY INFORMATION

5.1 General safety instruction

5.3 Information about remaining risks of the equipment

omi DD144 Specifications

General IconGeneral
Brandomi
ModelDD144
CategoryDehumidifier
LanguageEnglish

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