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Manitowoc RFF - Service Manual

Manitowoc RFF
115 pages
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Part Number 000017542 Rev 00 8/22
Flake & Nugget Ice Machines
RFF, RNF, UFF, UNF, RFP, RNP, UFP, UNP Models
Installation, Operation and Maintenance Manual
Original Document
,
Caution
Read this instruction before operating this equipment

Table of Contents

Other manuals for Manitowoc RFF

Questions and Answers:

Manitowoc RFF Specifications

General IconGeneral
BrandManitowoc
ModelRFF
CategoryIce Maker
LanguageEnglish

Summary

Safety Notices

Definitions

Explains hazard symbols like DANGER, Warning, Caution, Notice, and NOTE.

Installation Safety Precautions

Lists precautions for safe installation, including codes, stability, bin compatibility, and lifting.

Flammable Refrigerant Safety

Details requirements for flammable refrigerants like R290, emphasizing trained technicians and safety standards.

Electrical Safety Precautions

Covers wiring, grounding, circuit breakers, and proper electrical connections for safe installation.

Operation and Maintenance Safety

Advises on reading the manual, avoiding hazards like crush/pinch, slippery surfaces, and improper cleaning.

Use and Maintenance Safety

Stresses owner responsibility for PPE, avoiding flammable materials, securing panels, and lockout/tagout.

Section 1 General Information

Model Numbers

Lists all supported Manitowoc ice machine models covered by the manual.

Adapters

Details installation procedures for specific adapters like the RFF2500 Bin Adapter.

Arctic Pure Water Filter System

Describes the benefits and features of the Arctic Pure Water Filter System.

Manitowoc De-scaler and Sanitizer

Provides part numbers and usage information for Manitowoc de-scaler and sanitizer.

Warranty Information

Directs users to the website for warranty verification, registration, and documentation.

Legs

Mentions the availability of legs and casters for undercounter units and bins.

Section 2 Installation Instructions

Location of Ice Machine

Outlines criteria for selecting an appropriate installation location for the ice machine.

Clearance Requirements

Specifies minimum clearances needed around the ice machine for proper airflow and service.

Installation Requirements

Details general installation requirements, including leveling, separate drains, venting, and sanitization.

Ice Machine Heat of Rejection

Provides BTU/h heat rejection data for various ice machine models.

Water and Drain Requirements

Covers potable water supply guidelines and drain connection best practices.

Potable Water Requirements

Lists guidelines for installing water inlet lines, including pressure and shut-off valve requirements.

Drain Connections

Provides guidelines for installing drain lines to prevent backflow and ensure proper drainage.

Cooling Tower Applications

Discusses installation considerations when using a cooling tower with the ice machine.

Water Supply and Drain Line Sizing;Connections

Provides a chart with water temperature, pressure, and fitting/tubing size requirements for various connections.

Electrical Service

Outlines electrical requirements, including voltage, grounding, circuit breakers, and wiring conventions.

Fuse;Circuit Breaker

Emphasizes the need for a dedicated circuit and separate fuse/circuit breaker for each machine.

Ground Fault Circuit Interrupter

Discusses GFCI/GFI recommendations for circuit protection.

Minimum Power Cord Specifications

States that wire size depends on location and conditions, determined by a qualified electrician.

For United Kingdom Only

Provides wiring instructions for UK plugs, matching wire colors to terminal markings.

Maximum Breaker Size & Minimum Circuit Amperage Chart

A chart detailing maximum breaker sizes and minimum circuit amperages for various ice machine models.

Refrigeration System Installation

Covers installation of the refrigeration system, including remote condensing units.

Remote Condensing Unit Installation

Details aspects of installing only the remote condensing unit.

Factory Refrigeration Amounts

Lists the refrigerant charge amounts for factory equipment and system operation parameters.

Personal Injury Potential (Refrigeration)

Warns about potential injury from refrigerant charge and the need for trained technicians.

Non-Manitowoc Condensing Units

Clarifies that Manitowoc units are designed for specific configurations and using non-Manitowoc units may void warranty.

Refrigeration Line Set Installation

Provides guidelines for installing refrigeration line sets between the ice machine and condensing unit.

Line Set Length

Details the maximum allowable length for refrigeration line sets and its impact on operation.

Line Set Rise or Drop

Illustrates and describes the maximum allowable vertical distance between the ice machine and the condensing unit.

Suction Line Oil Traps

Explains the requirement and installation of oil traps in the suction line based on rise.

Connecting the Line Set

Describes how to connect the refrigeration line set to the condensing unit and ice machine head, including brazing.

Pressure Test and Evacuate System

Details the process of pressure testing and evacuating the refrigeration system to ensure integrity.

Insulation Requirements

Specifies insulation thickness and requirements for suction and liquid lines to prevent condensation.

Installation Checklist

A comprehensive checklist to ensure all installation steps have been completed correctly.

QuietQube Model Checks

Specific checks required for QuietQube models related to line sets and condensing unit placement.

Section 3 Operation

Bin Thermostat & Safety Adjustment Chart

A chart detailing bin thermostat and evaporator safety thermostat settings for various models.

Undercounter Model Operation

Explains the operating sequence and conditions for specific undercounter models.

Modular Flake;Nugget Model Operation

Details the operation sequence and conditions for specific modular flake/nugget models.

Larger Modular & Remote Model Operation

Describes the operation of various larger modular and remote models.

Section 4 Maintenance

Interior De-scaling and Sanitizing

Outlines the procedure for de-scaling and sanitizing the interior of the ice machine.

Exterior Cleaning

Provides instructions for cleaning the exterior surfaces of the ice machine.

Detailed De-scaling;Sanitizing Procedure

Step-by-step guide for performing a thorough de-scaling and sanitizing process.

Heavily Scaled De-scaling Procedure

Procedure for addressing heavily scaled ice machines, identifying symptoms and steps.

Heavily Scaled Flake Ice Machine Procedure

Detailed steps for de-scaling heavily scaled flake ice machines, including charts for solutions.

Parts Removal for De-scaling;Sanitizing

Instructions on removing specific parts for de-scaling and sanitizing.

Ice Chute Removal

Details the process of removing the ice chute for specific models.

Air-Cooled Condenser Cleaning

Instructions for cleaning the air-cooled condenser to maintain performance.

Removal from Service;Winterization

Steps for preparing the ice machine for removal from service or winterization.

Water-Cooled Machine Winterization

Specific steps for removal from service/winterization for water-cooled models.

Section 5 Troubleshooting

Troubleshooting Checklist

A checklist to help diagnose and correct common ice machine operational problems.

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