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Scotsman NWH 1008 - User Manual

Scotsman NWH 1008
155 pages
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NW(H) SERIES
DICE & HALFDICE
CUBERS
TECHNICAL SERVICE TRAINING
Welcome to another Scotsman Technical Service Presentation that
cover all NW models
REV. 03/2018
Full Cube 12 gr Half Cube 6 gr
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Summary

Installation of the Ice Machine

Ventilation and Clearance Requirements

Ensuring adequate space for connections and ventilation, including a 15cm side clearance.

Electrical Checks and Grounding

Verifying voltage, wiring, fuse size on the data plate, and ensuring a solid earth wire.

Environmental and Water Condition Checks

Verifying ambient temperature, water temperature, and pressure requirements for operation.

Electrical Plug and Fuse Protection

Installing appropriate electrical plugs and ensuring individual fuse protection per local regulations.

Water Inlet and Drain Connections

Connecting the water inlet and drain hoses to the machine and supply lines.

Start-up and Operational Checks

Transition to Freezing Cycle

Machine moves to freezing cycle with specific components energized and steady indicator lights.

Ice Thickness Sensor Activation

Freezing continues until ice covers the thickness sensor, triggering the next cycle phase.

Harvest Cycle Initiation

Machine enters harvest cycle when ice thickness sensor is continuously powered for over 6 seconds.

Bin Full Detection and Cycle Halt

Ice full sensor signals bin capacity; machine stops, BIN FULL light illuminates steadily.

Operating Principles and Components

Freeze Cycle Operation Principle

Diagram illustrating the refrigerant flow and component operation during the freeze cycle.

Harvest Cycle Operation Principle

Diagram illustrating the refrigerant flow and component operation during the harvest cycle.

Refrigerant System: Compressor

Details the compressor as a key component of the refrigerant system.

Refrigerant System: Condenser

Details the condenser as a key component of the refrigerant system.

Refrigerant System: Evaporator

Details the evaporator as a key component of the refrigerant system.

Refrigerant System: TXV Valve

Details the TXV (Thermostatic Expansion Valve) in the refrigerant system.

Water System: Water Inlet Valve

Details the water inlet valve as a component of the water system.

Water System: Water Pump

Details the water pump component within the water system.

Electronic Controls: PC Board

Details the main control board (PC Board) in the electronic system.

Electronic Controls: Ice Thickness Sensor

Details the ice thickness sensor, part of the electronic control system.

Electronic Controls: Water Level Sensor

Details the water level sensor component in the electronic control system.

Maintenance Procedures

Sanitizing Schedule

Specifies that sanitizing should be performed every month.

Cleaning Schedule

Indicates that cleaning should be performed every six months.

Preparing Cleaning Solution

Mixing Scotsman Ice Machine Cleaner with lukewarm water to create the cleaning solution.

Initiating Cleaning Cycle

Pressing the CLEAN button for 2-3 seconds to start the cleaning cycle.

Adding Cleaner to Water Sump

Purging water and adding specified amounts of Scotsman cleaner to the water sump.

Rinsing Mode Procedure

Details the rinsing mode steps, including pump and valve energization, repeated 10 times.

Sanitizing Bin Interior Surfaces

Spraying mixed solution on bin walls, wiping deflector, door, and bin interior.

Weekly Bin Sanitization Reminder

Reminder for weekly sanitization of the bin interior liner to prevent bacteria accumulation.

Monthly Air Filter Check and Cleaning

Regular monthly inspection and cleaning of the rear air filter.

Service Analysis and Troubleshooting

Ideal Dice Cube Characteristics

Describes the ideal appearance, rim, and depression of a Scotsman dice ice cube.

Ice Thickness Sensor Adjustment

Specifies the correct 3-5mm clearance for the ice thickness sensor relative to evaporator cells.

Refrigerant Pressure Checks

Guide for checking refrigerant operating pressures at the end of the freeze cycle under specific conditions.

TXV Valve Replacement for Pressure Issues

Recommends replacing the TXV valve if refrigerant pressures are incorrect.

Scotsman NWH 1008 Specifications

General IconGeneral
Ice Maker TypeModular
Condenser TypeAir-cooled
RefrigerantR-404A
Ice TypeNugget
Power Supply208-230V/60Hz/1Phase

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