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Frick RWF II 134 User Manual

Frick RWF II 134
78 pages
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This manual contains installation, operation, and maintenance
instructions. Read thoroughly before beginning installation. Failure
to follow these instructions may result in personal injury or death,
damage to the unit, or incorrect operation.
RWF II
Rotary Screw Compressor
All Refrigerants
Models 100 to 1080
Form 070.610-IOM (JUL 2021)
Installation–Operation–Maintenance
File: Service Manual – Section 070
Replaces: 070.610-IOM (MAR 2020)
Distribution: 3, 3a, 3b, 3c
Check www.FrickCold.com for the latest version of this publication.

Table of Contents

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Frick RWF II 134 Specifications

General IconGeneral
BrandFrick
ModelRWF II 134
CategoryCompressor
LanguageEnglish

Summary

Installation

Foundation

Details requirements for compressor foundation installation.

Rigging and Handling

Safety warnings and procedures for rigging equipment.

Compressor/Motor Coupling Installation

Describes the installation of BP coupling and related procedures.

Liquid Injection Oil Cooling - Optional

Describes the liquid injection oil cooling system and its requirements.

High-Stage Economizer – Optional

Explains economizer operation for increased capacity and efficiency.

Installation of Electronic Equipment in an Industrial Environment

General practices for installing sensitive electronic equipment.

Grounding

Critical factor for successful operation of electronic equipment.

Operation

Operation and Startup Instructions

Overview of subsystems and logical step-by-step instructions.

Compressor Lubrication System

Functions of the compressor lubrication system.

Demand Pump Oil System

Description and operation of the demand pump lubrication system.

Cold-Start System

Description of the cold-start discharge check valve.

Compressor Hydraulic System

How the hydraulic system moves the slide valve and stop.

Quantum HD EZ-COOL Liquid Injection Adjustment Procedure

Details of the EZ-Cool LIOC setup screen selections.

Operation of Danfoss Liquid Injection Valve

Describes the ICAD MMI interface for the liquid injection valve.

Suction Check Valve Bypass

Explains the function and adjustment of the suction check valve bypass.

Initial Start-Up

Requirements and considerations for initial start-up.

Initial Start-Up Procedure

Steps and considerations for initial start-up.

VFD Skip Frequencies

Criteria for identifying and establishing skip frequencies for VFDs.

Maintenance

Normal Maintenance Operations

Safety precautions to take before performing maintenance.

General Maintenance

Critical areas for ensuring long and trouble-free compressor operation.

Compressor Shutdown and Start-Up

Procedure for seasonal or prolonged shutdowns.

General Instructions for Replacing Compressor Unit Components

Steps for replacing components exposed to refrigerant pressure.

Oil Filter (OF-1) Cartridge Style

Procedure for changing oil filter cartridges.

Strainer - Demand Oil Pump

Procedure for cleaning the demand oil pump strainer.

Strainer - Liquid Injection

Procedure for cleaning the liquid injection strainer.

Coalescer Filter Element

Procedure for changing coalescer filter elements.

Changing Oil

Procedure for changing the unit's oil and filter cartridges.

Troubleshooting the Demand Pump

Safety warnings and initial steps for pump troubleshooting.

Vibration Analysis

Guidelines for taking and evaluating vibration readings.

Oil Sampling Procedure

Steps for safely taking oil samples while the equipment is operating.

Troubleshooting Guide

Approach to defining problems, identifying causes, and making corrections.

Abnormal Operation Analysis and Correction

Four logical steps to analyze and correct abnormal operations.

Servicing the Cold-Start Valve

Safety warnings and procedure for servicing the cold-start valve.

Pressure Transducers – Testing

Procedures for testing pressure transducers.

Pressure Transducers – Replacement

Procedure for replacing pressure transducers.

Troubleshooting the RWF II Compressor

Symptoms and probable causes/corrections for compressor issues.

Troubleshooting the Demand Pump System

Symptoms and probable causes/corrections for demand pump system issues.

Troubleshooting the Oil Separation System

Symptoms and probable causes/corrections for oil separation system issues.

Troubleshooting the Hydraulic System

Symptoms and probable causes/corrections for hydraulic system issues.

Forms

RWF II Compressor Prestart Checklist

Checklist for mechanical and electrical items before start-up.

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