Manitowoc SD0672C User manual

Technician’s
Handbook
Manitowoc
This manual is updated as new information and models are
released. Visit our website for the latest manual.
www.manitowocice.com
America’s #1 Selling Ice Machine
S Model & Ice Beverage
QuietQube®
Ice Machines
Part Number 80-1505-3 6/11

Safety Notices
As you work on Manitowoc equipment, be sure to pay
close attention to the safety notices in this handbook.
Disregarding the notices may lead to serious injury
and/or damage to the equipment.
Throughout this handbook, you will see the following
types of safety notices:
Procedural Notices
As you work on Manitowoc equipment, be sure to read
the procedural notices in thishandbook. These notices
supply helpful information which may assist you as
you work.
Throughout this handbook, you will see the following
types of procedural notices:
!Warning
Text in a Warning box alerts you to a potential
personal injury situation. Be sure to read the
Warning statement before proceeding, and work
carefully.
!Caution
Text in a Caution box alerts you to a situation in
which you could damage the equipment. Be sure
to read the Caution statement before proceeding,
and work carefully.
Important
Text in an Important box provides you with
information that may help you perform a
procedure more efficiently. Disregarding this
information will not cause damage or injury, but it
may slow you down as you work.

NOTE: Text set off as a Note provides you with simple,
but useful, extra information about the procedure you
are performing.
Read These Before Proceeding:
!Caution
Proper installation, care and maintenance are
essential for maximum performance and trouble-
free operation of your Manitowoc equipment. If
you encounter problems not covered by this
handbook, do not proceed, contact Manitowoc
Foodservice Group. We will be happy to provide
assistance.
Important
Routine adjustments and maintenance
procedures outlined in this handbook are not
covered by the warranty.
!Warning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been
misused, abused, neglected, damaged, or
altered/modified from that of original
manufactured specifications.
We reserve the right to make product
improvements at any time. Specifications and
design are subject to change without notice.

Part Number 80-1505-3 6/11 5
Table of Contents
General Information
Model Numbers . . . . . . . . . . . . . . . . . .13
How to Read a Model Number . . . . . .14
Ice Cube Sizes . . . . . . . . . . . . . . . . . .15
Model/Serial Number Location . . . . . .16
Energy Efficient Ice Machine
Serial Breaks . . . . . . . . . . . . . . . . . . . .16
Ice Machine Warranty Information . . .17
Installation
Location of Ice Machine . . . . . . . . . . .23
Ice Machine Head Section
Clearance Requirements . . . . . . . . . . .24
Stacking Two Ice Machines on a
Single Storage Bin . . . . . . . . . . . . . . .25
Ice Deflector . . . . . . . . . . . . . . . . . . . .25
Removing the Front Panels . . . . . . . . .26
Location of CVD®Condensing Unit . . .27
Condensing Unit Clearance
Requirements . . . . . . . . . . . . . . . . . . .28
Bin Installation . . . . . . . . . . . . . . . . . . .29
S1470C/S1870C/S2070C/S2170C
Installation on a Manitowoc Bin . . . . . .31
Ice Machine on a Dispenser Installation 33
Ice Machine Head Section Water
Supply and Drains . . . . . . . . . . . . . . . .36
Water Cooled Condenser Water Supply
and Drains . . . . . . . . . . . . . . . . . . . . . .38
Electrical Requirements . . . . . . . . . . .39
Refrigeration System Installation . . . . .41

6 Part Number 80-1505-3 6/11
Operational Checks . . . . . . . . . . . . . . . . . 61
General . . . . . . . . . . . . . . . . . . . . . . . . 61
Water Level . . . . . . . . . . . . . . . . . . . . 61
Ice Thickness Check . . . . . . . . . . . . . 62
Harvest Sequence Water Purge . . . . . 63
Electronic Bin Thermostat Instructions
IB600C/IB680C/IB800C/IB1000C Only
Positioning . . . . . . . . . . . . . . . . . . . . . 64
Component Identification
Ice Machine Head Sections . . . . . . . . 67
CVD®Condensing Units . . . . . . . . . . . 71
Maintenance
General . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Cleaning / Sanitizing Procedure . . . . . . . 74
Cleaning Procedure . . . . . . . . . . . . . . 74
Parts Removal for Cleaning/Sanitizing 76
Sanitizing Procedure . . . . . . . . . . . . . 83
Procedure to Clean Heavily Scaled
Ice Machines . . . . . . . . . . . . . . . . . . . . . . 85
General . . . . . . . . . . . . . . . . . . . . . . . . 85
Cleaning Procedure . . . . . . . . . . . . . . 85
Parts Removal for Cleaning/Sanitizing 88
Sanitizing Procedure . . . . . . . . . . . . . 102
Additional Component Removal . . . . . 104
Removal from Service/Winterization . . . 109
General . . . . . . . . . . . . . . . . . . . . . . . . 109
CVD1486 Water Cooled Condensing Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Sequence of Operation
Initial Start-Up or Start-Up After
Automatic Shut-Off . . . . . . . . . . . . . . . 111
Freeze Sequence . . . . . . . . . . . . . . . . 113
Harvest Sequence . . . . . . . . . . . . . . . 114
Automatic Shut-Off . . . . . . . . . . . . . . . 117

Part Number 80-1505-3 6/11 7
Troubleshooting
Safety Limits . . . . . . . . . . . . . . . . . . . . . . .123
Safety Limit Analysis . . . . . . . . . . . . . .125
Safety Limit#1 . . . . . . . . . . . . . . . . . . .126
Safety Limit #2 . . . . . . . . . . . . . . . . . .127
Safety Limit #3 . . . . . . . . . . . . . . . . . .128
Control Board Testing . . . . . . . . . . . . . . .129
Control Board Test Cycle . . . . . . . . . .129
Troubleshooting By Symptom . . . . . . . .130
Symptom #1 Ice Machine Will Not Run .131
Diagnosing an Ice Machine Head Section
that Will Not Run . . . . . . . . . . . . . . . . .133
Diagnosing a Condensing Unit
That Will Not Run . . . . . . . . . . . . . . . .134
Compressor Electrical Diagnostics . . .135
Symptom #2 Low Production, Long Freeze
Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Symptom #2 - Refrigeration System Opera-
tional Analysis Tables . . . . . . . . . . . . .140
Symptom #2 - Freeze Cycle Refrigeration
System Operational Analysis Table Proce-
dures . . . . . . . . . . . . . . . . . . . . . . . . . .149
Symptom #3 Ice Will Not Harvest . . . . . .166
Ice Machine will Not Harvest Diagnostics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
Harvest Problems . . . . . . . . . . . . . . . .167
Symptom #3 Ice Will Not Harvest, Cubes Are
Not Melted Flowchart . . . . . . . . . . . . . . . .168
Symptom #4 Ice Will not Harvest - Cubes Are
Melted Flowchart . . . . . . . . . . . . . . . . . . .172

8 Part Number 80-1505-3 6/11
Component Check Procedures
Electrical Components . . . . . . . . . . . . . . 175
Main Fuse . . . . . . . . . . . . . . . . . . . . . . 175
Bin Switch . . . . . . . . . . . . . . . . . . . . . . 176
Harvest Assist Air Pump . . . . . . . . . . . 179
ICE/OFF/CLEAN Toggle Switch . . . . . 180
Ice Thickness Probe (Harvest Initiation)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Water Level Control Circuitry . . . . . . . 187
Electronic Bin Thermostat Control . . . 193
Compressor Electrical Diagnostics . . . 199
Diagnosing Start Components . . . . . . 201
Refrigeration Components . . . . . . . . . . . 204
Refrigerant Charge Verification . . . . . 204
Suction Accumulator Operation . . . . . 206
Headmaster Control Valve . . . . . . . . . 207
Headmaster Valve Water-Cooled Condens-
ing Unit - CVD1476 . . . . . . . . . . . . . . . 212
Water Regulating Valve CVD1476 . . . 214
Fan Cycle Control . . . . . . . . . . . . . . . . 215
High Pressure Cutout (HPCO) Control 216
Low Pressure Cutout (LPCO) Control 217
Refrigerant Recovery/Evacuation . . . . . 218
Connections . . . . . . . . . . . . . . . . . . . . 219
Recovery/Evacuation Procedures . . . 221
Charging Procedures . . . . . . . . . . . . . 222
System Contamination Cleanup . . . . . . . 223
Determining Severity of Contamination 223
Cleanup Procedure . . . . . . . . . . . . . . 225
Refrigerant Reuse Policy . . . . . . . . . . . . 230

Part Number 80-1505-3 6/11 9
Component Specifications
Main Fuse . . . . . . . . . . . . . . . . . . . . . .233
Bin Switch . . . . . . . . . . . . . . . . . . . . . .233
Harvest Assist Air Pump . . . . . . . . . . .233
ICE/OFF/CLEAN Toggle Switch . . . . .233
Electronic Bin Thermostat Control . . . .233
Water Regulating Valve . . . . . . . . . . .233
Fan Cycle Control . . . . . . . . . . . . . . . .234
High Pressure Cutout (HPCO) Control 234
Low Pressure Cutout (LPCO) Control .234
Filter-Driers . . . . . . . . . . . . . . . . . . . . .235
Total System Refrigerant Charge . . . .237
Charts
Cycle Times/24-Hour Ice Production/Refriger-
ant Pressure . . . . . . . . . . . . . . . . . . . . . . .239
S0600C/CVD0675 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . .240
SD0682C/CVD0685 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . .241
SY0684C/CVD0685 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . .242
IB0600C/CVD675 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . .243
IB0682DC/CVD685 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . .244
IB0684YC/CVD685 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . .245
SD0872C/SY0874C/CVD0885 Series
Remote Air Cooled Machines Before Serial
Number 110682385 . . . . . . . . . . . . . .246
SD0872C/CVD0885 Series Remote Air
Cooled Machines After Serial Number
110682385 . . . . . . . . . . . . . . . . . . . . .247
SY0874C/CVD0885 Series Remote Air
Cooled Machines After Serial Number
110682385 . . . . . . . . . . . . . . . . . . . . .248
IB0822DC/IB0824YC/CVD885 Series Re-
mote Air Cooled Machines Before Serial
Number 110682385 . . . . . . . . . . . . . .249

10 Part Number 80-1505-3 6/11
IB0822DC/CVD885 Series Remote Air
Cooled Machines After Serial Number
110682385 . . . . . . . . . . . . . . . . . . . . . 250
IB0824YC/CVD885 Series Remote Air
Cooled Machines After Serial Number
110682385 . . . . . . . . . . . . . . . . . . . . . 251
SD1072C/SY1074C/CVD1085 Series Re-
mote Air Cooled Machines Before Serial
Number 110697654 . . . . . . . . . . . . . . 252
SD1072C/CVD1085 Series Remote Air
Cooled Machines After Serial Number
110697654 . . . . . . . . . . . . . . . . . . . . . 253
SY1074C/CVD1085 Series Remote Air
Cooled Machines After Serial Number
110697654 . . . . . . . . . . . . . . . . . . . . . 254
IB1022DC/IB1024YC/CVD1075/CVD1085/
CVD1285 Series Remote Air Cooled
Machines Before Serial Number 110697294
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
IB1022DC/CVD1185 Series Remote Air
Cooled Machines After Serial Number
110697294 . . . . . . . . . . . . . . . . . . . . . 256
IB1024YC/CVD1185 Series Remote Air
Cooled Machines After Serial Number
110697294 . . . . . . . . . . . . . . . . . . . . . 257
SD1272C/SY1274C/CVD1285 Series Re-
mote Air Cooled Machines Before Serial
Number 110706336 . . . . . . . . . . . . . . 258
SD1272C/CVD1285 Series Remote Air
Cooled Machines After Serial Number
110706336 . . . . . . . . . . . . . . . . . . . . . 259
SY1274C/CVD1285 Series Remote Air
Cooled Machines After Serial Number
110706336 . . . . . . . . . . . . . . . . . . . . . 260
S1470C/CVD1485 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . 261
S1470C/CVD1486 Remote Water Cooled
262
SD1872C/CVD1885 Series Remote Air
Cooled . . . . . . . . . . . . . . . . . . . . . . . . 263