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Howe Rapid Freeze User Manual

Howe Rapid Freeze
78 pages
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Rapid Freeze
SERVICE MANUAL
and parts catalog
Selective Purpose Flake Ice Machines
2000 - 20000 lb. Seawater Models
Howe Corporation
1650 N Elston Ave
Chicago, IL. 60622-1530
www.howecorp.com
E-Mail: howeinfo@howecorp.com
TECHNICAL ASSISTANCE LINE
1-773-235-0200
REV. 07-05
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Howe Rapid Freeze Specifications

General IconGeneral
BrandHowe
ModelRapid Freeze
CategoryIce Maker
LanguageEnglish

Summary

Service Manual and Parts Catalog

Notice

Introduction

Strategic Vision

Overview of Howe Flaker's long-standing performance and innovation.

Rapid Freeze Energy Efficiency

Highlights the machine's high energy efficiency rating and cost-effectiveness.

Important Safety Information

Intended for experienced personnel; repairs may cause injury or damage.

Special Precautions for Refrigerant Charging

Safety guidelines for handling refrigerant, cylinder storage, and charging procedures.

Installing the Rapid Freeze Flaker

Installation Conditions

Specifies environmental temperature ranges for optimal operation and warranty.

Installation without Ice Bin

Details requirements for units installed without a dedicated ice bin.

Installation on Ice Storage Bins

Guidelines for mounting flakers directly on insulated ice storage bins.

Recommended Installation Method

Describes the forklift and block method for placing the flaker on an ice bin.

Water Supply & Filter Connections

Instructions for connecting water lines, filters, and ensuring adequate water pressure.

Refrigerant Charging

Procedures and safety precautions for charging the refrigeration system with refrigerant.

Seawater Model Installation

Assembly Drawings

Provides dimensional and connection data for various seawater models.

Wiring & Electrical Connections

Details electrical connections for remote models and necessary field wiring.

Freon Piping

Information on Freon piping line sizes and considerations for proper installation.

Accessories

Electric Eye Ice Level Control

Explains the function and installation of the photo-electric eye bin level control.

Ice Bin Thermostat Alternatives

Clarifies why thermostats are unsuitable and the function of the photo eye.

Rib Heating Elements

Discusses the necessity and installation of rib heaters for cold ambient operation.

How The Rapid Freeze Flaker Operates

Ice Flaker Cutaway Drawing

Illustrates the internal components and design of the ice flaker.

The Inside Story

Detailed explanation of the flaker's construction, materials, and operational advantages.

Start & Adjust

Startup Checklist

A step-by-step procedure for initial machine startup and verification.

Electric Control Panel

Components & Functions

Identifies and describes the function of each component within the control panel.

Door Mounted Items

Details the indicators, switches, and reset buttons mounted on the control panel door.

E20T48 Control Module Details

Explains the functions and terminal connections of the main control processor module.

Control Panel Wiring Diagrams

208-230/1/60 Schematic

Wiring diagram for single-phase power supply and control circuits.

460/3/60 Wiring Diagrams

Wiring diagrams for three-phase power supply and control circuits.

220/1/50 Wiring Diagrams

Wiring diagrams for 220V, 1-phase, 50Hz power and control circuits.

380/3/50 Wiring Diagrams

Wiring diagrams for 380V, 3-phase, 50Hz power and control circuits.

Maintenance

Evaporator Cleaning Procedures

Procedures for cleaning the evaporator to maintain peak performance and prevent buildup.

Water System Maintenance

Maintenance guidelines for water distribution tubes, sump, and drip pan.

Lubrication & Speed Reducer Maintenance

Instructions for lubricating bearings and changing oil in the speed reducer.

Preventative Maintenance Schedule

A schedule outlining routine checks and tasks to ensure long-term reliability.

Troubleshooting Chart

Photo Eye & Control Module Issues

Diagnosing and resolving problems related to the ice detection system and control module.

Ice Storage, Freezing & Drive Motor Issues

Addressing issues with ice buildup, harvesting, freezing quality, and motor operation.

Speed Reducer & Ice Blade Problems

Troubleshooting common issues with the speed reducer, ice blade, and related components.

Service & Adjustment

Critical Safety Notices

Crucial safety warnings regarding electrical hazards and qualified personnel.

Ice Deflector, Squeegee & Cutter Blade Service

Procedures for replacing and adjusting ice deflectors, scrapers, squeegees, and cutter blades.

Drive Motor, Speed Reducer & Bearings Replacement

Steps for replacing major mechanical components like the motor, gearbox, and bearings.

Component Replacements

Guidance for replacing electric eyes, water pump, float valve, and expansion valve.

Solenoid Valve & Expansion Valve Adjustment

Instructions for replacing the solenoid valve and adjusting the expansion valve.

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