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Redi Controls Redi-Purge PRG-113-C3 User Manual

Redi Controls Redi-Purge PRG-113-C3
68 pages
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Redi-Purge
Model PRG-113-C3 & C4
Microprocessor Controlled
Ultra High Efficiency
Purge Unit
for
Low Pressure Chillers
Manufactured in accordance with
ASHRAE Guidelines 3-1990 Sec. 4.7 and
Standard 15-1992 Sec. 8.3, 8.7 and 10.4
REDI CONTROLS, INC.
Installation, Operation & Maintenance Manual
Literature File No. 1117-02
ETL Listed
3104248

Table of Contents

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Redi Controls Redi-Purge PRG-113-C3 Specifications

General IconGeneral
ModelPRG-113-C3
CategoryAuto-Purgers
Operating Pressure150 psi
Body MaterialStainless Steel
Connection Size1/2 inch NPT

Summary

General Information

Guidance on Warnings and Cautions

Explains the meaning and importance of warnings and cautions throughout the manual.

Requirement for Qualified Personnel

Emphasizes that installation and operation must be performed by qualified personnel.

Installation

Removing the Existing Purge Unit

Step-by-step procedures for safely disconnecting and removing the existing purge unit.

Refrigerant Line Connections

Details the required refrigerant line connections, including vapor and liquid lines.

Electrical Connections and Wiring

Covers power requirements, wiring standards, and chiller "run signal" connection.

Initial Checkout and Power-Up Procedure

Steps for verifying connections, measuring voltages, and powering up the unit for the first time.

System Components

Microprocessor Circuit Board Function

Explains the function of the microprocessor board and its role in unit control.

Solenoid Valves and Liquid Level Switch

Explains the role of drain and pumpout solenoid valves and the liquid level switch.

Operational Overview

Detailed Operating Cycle

Details the step-by-step process of refrigerant condensation and air purging during operation.

Quick Start Operation

Operational Modes: Manual, Auto, Adaptive

Explains the three modes of operation and when to use each.

Setting Key Operational Parameters

Guides on configuring key settings like Purge Fault, Fault Bypass, and Drain Cycle times.

Dip Switch Settings

Microprocessor Overview

Microprocessor Safety Features

Lists safety features that monitor conditions and terminate operation if abnormal.

In-depth Operating Mode Explanations

Provides detailed explanations of Manual, Auto, and Adaptive modes, including self-learning.

Control Panel Interface

Keypad Switch Operations

Details the functions of individual keypad switches like SET CLOCK, STOP, MANUAL, AUTO, ADAPTIVE, etc.

Fault Conditions and Indications

Fault Indications and Condition Explanations

Lists and explains common fault conditions like PURGE FAULT, DRAIN FAULT, and BATTERY FAULT.

Maintenance

Periodic Maintenance Schedule

Outlines the required maintenance tasks for ensuring efficient and reliable operation.

Troubleshooting

Troubleshooting Chart for Common Issues

A guide listing common symptoms, their causes, and recommended solutions for quick diagnosis.

Refrigeration System Diagnostic Procedures

Procedures for diagnosing issues within the unit's refrigeration circuit using temperature measurements.

Service Tips