SERVICE MANUAL
NW458
NW608
NW1008
Electronic Modular Cubers
98020303-00 Version A
2
TABLE OF CONTENTS
Table of contents
Specifications
2-3
4-9
FOR THE INSTALLER
Introduction 10
Storage bin 10
Standard legs 10
Important operating requirements 10
Select location 11
Storage bin 11
Ice machine 11
Stacking instructions 12
FOR THE PLUMBER
Conform to all applicable codes
Water inlet
13
Drains 13
For the electrician
Electrical connections 14
Final check list
15
START-UP
Start-up cycle 16
Freezing cycle 16
Harvest cycle 17
OPERATION
Refrigeration during freeze 18
Water system 19
Refrigeration system during harvest 20
Water system 20
Control sequence 20
Alarm conditions 21
PC Board set up 22
SERVICE SPECIFICATIONS
Component 23
Operating characteristics 23
COMPONENT DESCRIPTION
Component description
24-26
3
WIRING DIAGRAM
NW 458/608 27
NW 1008 28
SERVICE DIAGNOSIS
Service diagnosis 29
MAINTENANCE & CLEANING INSTRUCTION
Icemaker 30
Ice storage bin 30
Cabinet exterior 30
Cleaning (Icemaker) 30-31
4
SPECIFICATIONS
MODULAR CUBER NW 458
Ice Making Capacity
NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic
maintenance as outlined on page 29 of this manual.
5
SPECIFICATIONS
MODULAR CUBER NW 458
Air Cooled
6
SPECIFICATIONS
MODULAR CUBER NW 608
Ice Making Capacity
NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic
maintenance as outlined on page 29 of this manual.
7
SPECIFICATIONS
MODULAR CUBER NW 608
Air Cooled
8
SPECIFICATIONS
MODULAR CUBER NW 1008
Ice Making Capacity
NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic
maintenance as outlined on page 29 of this manual.
9
SPECIFICATIONS
MODULAR CUBER NW 1008
Air Cooled
10
FOR THE INSTALLER
INTRODUCTION
These instructions provide the specifications
and the step-by-step procedures for the
installation, start up and operation for the
SCOTSMAN Model NW 458-608-1008
Modular Cubers. The Models NW 458-6081008 Modular Cubers are quality designed,
engineering and constructed, and are
thoroughly tested ice making systems,
providing the utmost in flexibility to fit the
needs of a particular user.
STORAGE BIN
NW 458 608 1008 stack onto SCOTSMAN bin
model NB 393/530/948.
Refrigerant R 404 A
Charge per nameplate rating.
STANDARD LEGS: Furnished with storage
bin. Four legs screw into mounting sockets on
cabinet base. Provide 18.5 cm. (7’’) minimum
heights including adjustable leveling foot.
IMPORTANT OPERATING REQUIREMENTS
Air Temperature
MINIMUM
10 C
(50 F)
MAXIMUM
40 C
(100 F)
Water Temperature
5 C
(40 F)
35 C
(90 F)
Water Pressures
1 bar
gauge
5 bar
gauge
Electrical Voltage
Variations Voltage
rating specified
on nameplate
-10% +10%
Extended periods of operation exceeding
these limitations constitute misuse under the
terms of Manufacturer’s Limited Warranty,
resulting in a loss of warranty coverage.
INSTALLATION NOTE: Allow 15 cm minimum
space at sides and back for ventilation and utility
connections.
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