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INTRODUCTION
To the owner or user: The service manual you are
reading is intended to provide you, and the
maintenance or service technician, with the
information needed to install, start up, clean,
maintain, and service this ice system.
This is a modular ice system that fits a variety of
Scotsman ice storage bins.
Its features include: front service for the freezer,
gearmotor, control box, water reservoir, and bin
control; an electronic control (AutoSentryä) for
monitoring ice level, water level and drive motor
current; a thermostatic expansion valve; and
R-404A as the refrigerant.
NME454, 654 & FME504, 804
January 2007
Page 1
Table of Contents
FOR THE INSTALLER ······································ Page 2
SAMPLE BIN AND MACHINE COMBINATIONS ························· Page 3
FOR THE INSTALLER ······································ Page 4
FOR THE INSTALLER: Location ································· Page 5
FOR THE PLUMBER ······································· Page 6
FOR THE ELECTRICIAN ····································· Page 7
FOR THE INSTALLER ······································ Page 8
INITIAL START UP ········································ Page 9
COMPONENT DESCRIPTION ·································· Page 10
COMPONENT DESCRIPTION ·································· Page 11
CONTROL BOX COMPONENTS ································ Page 12
ELECTRICAL SEQUENCE: ··································· Page 13
OPERATION: Water ······································· Page 14
OPERATION: Refrigeration ··································· Page 15
OPERATION: Performance ··································· Page 16
CLEANING & SANITIZING ···································· Page 17
SENSOR MAINTENANCE ···································· Page 18
AIR COOLED MAINTENANCE ·································· Page 19
BEARING MAINTENANCE ···································· Page 20
AUGER MAINTENANCE ····································· Page 21
SERVICE DIAGNOSIS ······································ Page 22
SERVICE DIAGNOSIS ······································ Page 23
CONTROL SYSTEM DIAGNOSTICS ······························ Page 24
REMOVAL AND REPLACEMENT: Bin Controls ························· Page 25
REMOVAL AND REPLACEMENT: Bearing And Breaker ···················· Page 26
REMOVAL AND REPLACEMENT: Auger ···························· Page 27
REMOVAL AND REPLACEMENT: Water Seal ························· Page 28
REMOVAL AND REPLACEMENT: Evaporator ·························· Page 29
REMOVAL AND REPLACEMENT: Gear Reducer and Motor ·················· Page 30
REFRIGERATION SYSTEM SERVICE ····························· Page 31
WHAT TO DO BEFORE CALLING FOR SERVICE ······················· Page 32
Note this symbol when it appears.