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omi DD180 - 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

  • Q
    qhernandezAug 25, 2025
    Why is the pressure in the line low on my omi DD180 Dehumidifier?
    • G
      gsheaAug 25, 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.
  • K
    Keith YoungNov 8, 2025
    What to do if there is water in my omi DD180 system?
    • J
      Jill BarnesNov 8, 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

General Information

Functional Description

Explains how OMI refrigerated air dryers remove moisture from compressed air through cooling stages.

Use of the Machine in Safe Conditions

Details safety precautions and compliance with European directives for installation, use, and maintenance.

Installation

Acceptance and Handling

Instructions for inspecting the dryer upon delivery and handling it correctly to avoid damage.

Storage and Installation Location

Guidelines for storing the dryer and selecting a suitable installation site with environmental and clearance requirements.

Unpacking

Steps for safely unpacking the dryer, including recommended tools and handling procedures.

Installation Procedures

Details on connecting the dryer to air lines, electrical connections, and condensate drainage systems.

Start Up

Control Panel Overview

Description of the control panel's keys, display, and signaling LEDs for operating the dryer.

Keys Function

Explanation of the function of each key (ON/OFF, TEST, SET, DOWN, UP) on the control panel.

Condensate Discharge Parameters Programming

Guide to programming condensate discharge timing parameters (C8, C9) via the control panel.

Display Indications

Information on messages and blinking indicators displayed by the controller for anomalies.

Remote Signaling Alarm (Optional)

Instructions for activating the optional remote alarm output using the dry contact.

Before Start Up

Checks and preparations required before the initial start-up or after a prolonged inactive period.

Start Up Procedure

Step-by-step guide for performing the first start-up and subsequent start-ups after inactivity.

Maintenance, Troubleshooting and Decommissioning

Maintenance Schedule

Details recommended maintenance tasks based on hours of operation or time intervals (weekly, monthly, yearly).

Troubleshooting Guide

A table listing common problems, display messages, possible causes, and remedies for the dryer.

Decommissioning

Procedure for safely shutting down, decommissioning, and disposing of the dryer and its components.

Safety Information

General Safety Instructions

Overview of safety directives, working life, and general precautions for operating the dryer.

Equipment Nameplate Values

Details on technical specifications and safety device settings found on the equipment's nameplate.

Information on Remaining Risks

Discussion of potential risks such as fire, refrigerant dispersion, excessive pressure, and ozone layer effects.

omi DD180 Specifications

General IconGeneral
Brandomi
ModelDD180
CategoryDehumidifier
LanguageEnglish

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