omi DD36 - 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

Questions and Answers

L
Lisa LeeAug 18, 2025
Why is the pressure in the line low on my omi DD36 Dehumidifier?
- C
  Caitlin JonesAug 19, 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.
R
rodriguezjoshuaNov 4, 2025
What to do if there is water in my omi DD36 Dehumidifier system?
- D
  David RodriguezNov 4, 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

GENERAL INFORMATION

FUNCTIONAL DESCRIPTION

Explains how OMI refrigerated air dryers remove moisture from compressed air.

SAFE OPERATING CONDITIONS

Details precautions for using the machine safely.

INSTALLATION

ACCEPTANCE AND HANDLING

Procedures for inspecting and moving the dryer upon receipt.

STORAGE AND INSTALLATION LOCATION

Guidelines for selecting a suitable site and storing the dryer.

UNPACKING

Steps for safely removing the dryer from its packaging.

INSTALLATION PROCEDURES

Step-by-step instructions for connecting the dryer to air lines and power.

START UP

CONTROL PANEL FUNCTIONS

Overview of control panel keys, display indicators, and LED signals.

DISPLAY INDICATIONS AND REMOTE ALARM

Understanding error messages and setting up optional remote alarm signals.

BEFORE START UP

Essential checks to perform before initiating the dryer's operation.

STARTUP PROCEDURE

Step-by-step instructions for starting the dryer after installation or downtime.

MAINTENANCE, TROUBLESHOOTING AND DECOMMISSIONING

MAINTENANCE SCHEDULE

Routine maintenance tasks categorized by frequency (weekly, monthly, yearly).

TROUBLESHOOTING GUIDE

A comprehensive guide to diagnose and resolve common dryer issues and error messages.

DECOMMISSIONING

Procedures for safely shutting down and decommissioning the dryer.

SAFETY INFORMATION

GENERAL SAFETY INSTRUCTIONS

General safety directives, compliance, and user responsibilities.

EQUIPMENT SPECIFICATIONS

Details on nameplate values, safety devices, and operating parameters.

POTENTIAL RISKS AND PRECAUTIONS

Information on fire hazards, refrigerant dispersion, and air pressure risks.

omi DD36 Specifications

General

Brand	omi
Model	DD36
Category	Dehumidifier
Language	English

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