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Flake & Nugget Models
RFF/UFF/RNF/UNF Ice Machines
Technician's Handbook
Part Number 000015433_05 3/21

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Summarization of Contents

General Information
Model Numbers
Lists Flake and Nugget model configurations.
QuietQube Models & Heat of Rejection
Details QuietQube models and provides heat rejection data.
Warranty & Cleaner Information
Outlines warranty procedures and lists approved cleaning products.
Installation
Installation Requirements
Criteria for selecting an appropriate installation location for the ice machine.
Water & Drain Connections
Guidelines for water supply, pressure, and drain line installation.
Electrical Service & Amperage Chart
Details on voltage, fuse/breaker requirements, and amperage charts.
Maintenance
Cleaning and Sanitizing
General procedures for cleaning and sanitizing the ice machine.
Detailed Descaling and Sanitizing Procedure
Comprehensive steps for descaling and sanitizing the unit.
Remedial Cleaning Procedure for Heavily Scaled Ice Machines
Steps to address severe scaling issues in ice machines.
Cleaning the Air Filter and Condenser
Instructions for cleaning air filters and condensers.
Removal from Service/Winterization
Procedures for safely taking the ice machine out of service.
Sequence of Operation
Model-Specific Operation
Describes start-up sequences for various UFF, UNF, RFF, RNF models.
Troubleshooting
Model-Specific Troubleshooting
Diagnostic steps for UFF, UNF, RFF, RNF, and QuietQube models.
Refrigeration System Troubleshooting
Covers issues related to capillary tube and TXV systems.
Component Specifications
Thermostats, Controls, and Sensors
Specifications for thermostats, controls, and rotation sensors.
Refrigerant Charge & Filter-Driers
Details on system refrigerant charge and filter-drier information.
Charts
Ice Production and Refrigerant Pressure Charts
Guidelines to verify correct ice machine operation.
Diagrams
Wiring Diagrams
Electrical wiring diagrams for various Flake and Nugget models.
Compressor Start Component Wiring
Diagrams for compressor start component connections.
Remote Condensing Unit Diagrams
Wiring and tubing schematics for RCUF units.
Refrigeration Tubing Schematics
Diagrams illustrating the refrigeration tubing layouts for various models.

Table of Contents