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Frick RWF II 856 User Manual

Frick RWF II 856
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 856 Specifications

General IconGeneral
TypeReciprocating
ModelRWF II 856
RefrigerantAmmonia (R717)
Stroke6 inches
Bore4.25 in (108 mm)

Summary

Installation

Foundation

Foundation must support unit weight, dampen vibrations, and be anchored properly.

Compressor/Motor Coupling Installation

Details on installing the BP and CH coupling systems, ensuring proper alignment.

Voltage Protection

Recommends Sola transformers for unstable power, advises against UPS.

Motor Starter Package

Guidelines for starter packages, including lug usage and torque analysis.

Grounding

Critical factor for operation; emphasizes stranded copper grounds for proper function.

Operation

Operation and Startup Instructions

Provides logical step-by-step instructions for starting up and operating the unit.

Compressor Lubrication System

Functions of the lubrication system, including bearings, seals, and cooling.

Quantum HD EZ-COOL Liquid Injection Adjustment Procedure

Details on setting EZ-Cool LIOC PI control parameters.

Initial Start-Up Procedure

Key points to remember during initial start-up.

VFD Skip Frequencies

Criteria for identifying elevated energy and establishing skip frequencies for VFDs.

Normal Start-Up Procedure

Step-by-step guide to starting the compressor unit.

Maintenance

Compressor Shutdown and Start-Up

Procedure for seasonal or prolonged shutdowns.

Changing Oil

Procedure for changing the unit's oil, including filter and strainer maintenance.

Troubleshooting the Demand Pump

Guide for diagnosing and correcting demand pump issues.

Maintenance Schedule

Schedule of recommended maintenance tasks and frequencies.

Vibration Analysis

Guidelines for performing and interpreting vibration analysis.

Oil Quality and Analysis

Importance of oil quality and procedure for oil sampling.

Abnormal Operation Analysis and Correction

Steps for analyzing and correcting abnormal system conditions.

Troubleshooting the RWF II Compressor

Common symptoms and probable causes/corrections for compressor issues.

Troubleshooting the Hydraulic System

Common symptoms and probable causes/corrections for hydraulic system issues.

Forms

RWF II Compressor Prestart Checklist

Checklist for installer to complete before field service supervisor arrives.

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