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Nirvana D4290NCHP User Manual

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80445455
Revision C
December 2013
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Nirvana High Pressure Cycling Refrigerated Dryer
Models D4290NCHP, D5635NCHP AND D7055NCHP
Operators Manual
Manual Del Operador
ES
Manual do Operador
PT
Manuel De Lopérateur
FR
Operator’s Manual
EN
120.26A D4290NCHPW400F Installation Operation and Maintenance Manual
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Nirvana D4290NCHP Specifications

General IconGeneral
BrandNirvana
ModelD4290NCHP
CategoryDryer
LanguageEnglish

Summary

Introduction

Warranty

Refrigerated Dryer Nomenclature

Receiving and Inspection

Inspection

Inspect the unit closely for any detected rough handling during delivery.

Unpacking and Handling

Guidelines for safe lifting and moving of the dryer package using forklifts or slings.

Safety and Operation Precautions

Principles of Operation

Introduction to Principles of Operation

Overview of how Nirvana™ Cycling dryers remove moisture by cooling air to 36-40°F.

Air System

Details the components in contact with compressed air and the air flow path through the dryer.

Moisture Removal System

Explains how condensate drains remove moisture and lubricants from the compressed air.

Refrigeration System

Describes the hermetically sealed closed-loop system that cools the air using refrigerant.

Thermal Mass Circulating System

Explains the continuous circulation of thermal mass fluid to minimize refrigeration cycles.

Dryer Controls

Basic User Interface

Details the Microprocessor Control keypad functions and their operations.

Display Parameters

Lists system parameters displayed by the Microprocessor Control for user monitoring.

Dryer Set Points and Alarms

Explains user-adjustable set points and the alarm conditions detected by the control.

Adjusting Set Points

Provides step-by-step instructions for adjusting set points in CUSTOMER MODE.

Alarms and Their Functions

Describes various alarms, their display indications, and functions.

Start Modes

Outlines the three start mode options: Manual, Auto Restart, and Remote.

Installation and Initial Start-Up

Location and Mounting

Guidelines for selecting a suitable location and mounting the dryer.

Piping and Valves

Instructions for installing piping, fittings, and accessories for the dryer.

Filtration

Recommendations for pre-filters and post-filters to protect the dryer from contamination.

Environmental Considerations

Discusses how acidic condensate can affect dryer internal surfaces.

Electrical Connection

Start Settings

Details the three start mode options: Manual, Automatic, and Remote.

Initial Start-Up

Start-Up Sequence

Step-by-step guide for powering up and starting the dryer.

Technician Mode

Entering Technician Mode

Instructions for accessing the protected TECHNICIAN MODE for advanced settings.

Alarm List

Details how to access and view the recent alarm conditions for troubleshooting.

Troubleshooting

Troubleshooting Introduction

Guide developed to facilitate problem identification and corrective actions for dryer malfunctions.

Problem Action Guide

A table listing common problems, symptoms, possible causes, and corrective actions.

Wiring Diagram

General Arrangement

Replacement Parts

Engineering Specifications