Gardner Denver RGD Series User Manual

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7442624 Rev. C 08/20
INSTRUCTION MANUAL
RGD Series
Models: RGD75A1, RGD100A1, RGD125A1,
RGD150A1, RGD200A4, RGD250A4,
RGD300A4, RGD400A4, RGD500A4
REFRIGERATED
TYPE
COMPRESSED
AIR DRYERS

Gardner Denver RGD Series Specifications

General

Model	RGD Series
Airflow	Varies by model
Moisture Removal	Varies by model
Power Supply	Varies by model
Dimensions	Varies by model
Weight	Varies by model

Summary

General Safety Information

Safety Precautions

Covers pressurized devices, electrical, and breathing air safety.

Installation

Ambient Air and Location Requirements

Requirements for ambient temperature, dryer placement, and clearance.

System Arrangement and Piping

Guidance on system layout, piping, and condensate removal.

Electrical Connection Standards

Requirements for safe and compliant electrical wiring.

Instrumentation and Controls

Dew Point Indicator Function

Understanding the dew point indicator for smaller models.

Dryer System Monitor (DSM)

Automatic Drain Valve Operation

Drain Valve Timer Settings

Electronic Drain Valve Programming

Operation and Maintenance

Start-up, Operation, and Shutdown Procedures

Steps for starting, running, and safely shutting down the dryer.

Drain Valve Servicing and Disassembly

Field Service Guide

Troubleshooting Common Dryer Problems

Guide to diagnose and resolve common dryer issues.

Engineering Data

Dryer Specifications and Ratings

Technical details including capacity, dimensions, and power.

Operating Conditions and Limits

Electrical Schematics

RGD75A1 Electrical Diagram

RGD100A1 to RGD125A1 Electrical Diagrams

RGD150A1 Electrical Diagram

RGD200A4 to RGD300A4 Electrical Diagrams

RGD400A4 Electrical Diagram

RGD500A4 Electrical Diagram

Air and Refrigerant Flow Schematic

System Flow Diagram

Visual representation of air and refrigerant paths.

Replacement Parts

Parts List by Model