Manitowoc QF0400 User manual

Technician’s
Handbook
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
Q Model Flake/Chiplet
S Model Flake/Nugget
Part Number 80-1230-9 10/10
Manitowoc

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 this handbook. 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 80-1230-9 10/10 5
Table of Contents
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . .13
How to Read a Model Number . . . . . .14
Model/Serial Number Location . . . . . .15
Manitowoc Cleaner and Sanitizer . . . .15
Ice Machine Warranty Information . . .15
Q Model & S Model Flake/Chiplet/Nugget
Commercial Warranty . . . . . . . . . . . . . . .16
Q Model & S Model Flake/Chiplet/Nugget Res-
idential Warranty . . . . . . . . . . . . . . . . . . .18
Installation
Location of Ice Machine . . . . . . . . . . . . . .23
Ice Machine Clearance Requirements . .24
Ice Machine Heat of Rejection . . . . . . . . .25
Location of Traditional Remote Units and Re-
mote condensing units . . . . . . . . . . . . . .26
Electrical Service . . . . . . . . . . . . . . . . . . .27
Circuit Ampacity . . . . . . . . . . . . . . . . .28
Ice Machine Head Section Water
Supply and Drains . . . . . . . . . . . . . . . . . .31
Potable Water Supply . . . . . . . . . . . . .31
Potable Water Inlet Lines . . . . . . . . . .31
Drain Connections . . . . . . . . . . . . . . . .32
Cooling Tower Applications
(Water-Cooled Models) . . . . . . . . . . . .32
Installing on a Dispenser . . . . . . . . . . .33
Line Set Requirements . . . . . . . . . . . .34
Component Identification
QF400 Air-cooled . . . . . . . . . . . . . . . . . . .37
QF800/QC700 Air & Water-cooled . . . . . .38
SF0400/SN0450/SF0600/SN0650/SF0900/
SN0950/SF1200/SN1250 Air & Water-cooled
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
SF0600/SN0650/SF0900/SN0950/SF1200/
SN1250 Remote & QuietQube Model . . .41

6 Part Number 80-1230-9 10/10
Maintenance
Manitowoc’s Cleaning Technology . . . . 44
Exterior Cleaning . . . . . . . . . . . . . . . . 45
Preventative Maintenance Procedure . . 46
QF0400 . . . . . . . . . . . . . . . . . . . . . . . 46
QC0700/QF0800/QF2200/QF2300 . . 48
SN012/SN020/SF0400/SN0450/SF0600/
SN0650/SF0900/SN0950/SF1200/SN1250
50
Heavily Scaled Procedure . . . . . . . . . . . . 53
QF0400 . . . . . . . . . . . . . . . . . . . . . . . 53
QC0700/QF0800/QF2200/QF2300 . . 54
SN012/SN020/SF0400/SN0450/SF0600/
SN0650/SF0900/SN0950/SF1200/SN1250
55
Cleaning And Sanitizing Procedure . . . . 57
QF0400 . . . . . . . . . . . . . . . . . . . . . . . 57
QC0700/QF0800/QF2200/QF2300 . . 60
SN012/SN020/SF0400/SN0450/SF0600/
SN0650/SF0900/SN0950/SF1200/SN1250
62
Component Disassembly For Cleaning And
Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . 65
General Information . . . . . . . . . . . . . . 65
QF400 . . . . . . . . . . . . . . . . . . . . . . . . 66
QC0700/QF0800/QF2200/QF2300 . . 71
SN012/SN020 . . . . . . . . . . . . . . . . . . 84
Water Dump Valve - All Models . . . . . 98
Cleaning the Condenser . . . . . . . . . . . 100
Removal from Service/Winterization . . . 102
General . . . . . . . . . . . . . . . . . . . . . . . . 102
Self-Contained Air-Cooled or Remote Air-
Cooled Ice Machines . . . . . . . . . . . . . 102
Water-Cooled Ice Machines . . . . . . . . 103
Remote Ice Machines . . . . . . . . . . . . . 103

Part Number 80-1230-9 10/10 7
Operation
Ice Making Sequence of Operation . . . . .105
QF0400/QC0700/QF0800 . . . . . . . . . .105
QF2200 . . . . . . . . . . . . . . . . . . . . . . . .107
QF2300 . . . . . . . . . . . . . . . . . . . . . . . .112
SN012/SN020/SF0400/SN0450/SF0600/
SN0650/SF0900/SN0950/SF1200/SN1250
Nugget/Flake Machines . . . . . . . . . . .116
Energized Parts . . . . . . . . . . . . . . . . . .119
Troubleshooting
SafeGuard Feature . . . . . . . . . . . . . . . . . .121
QF0400/QC0700/QF0800/QF2200/QF2300 123
No Water SafeGuard . . . . . . . . . . . . . .123
Gear Motor Speed . . . . . . . . . . . . . . . .125
Temperature Is Too high Or Too Low .127
QF2200 Only - Temperature Is Too High or
Low . . . . . . . . . . . . . . . . . . . . . . . . . . .130
SN012/SN020/SF0400/SN0450/SF0600/
SN0650/SF0900/SN0950/SF1200/SN1250 132
No Water . . . . . . . . . . . . . . . . . . . . . . .132
No Ice Production . . . . . . . . . . . . . . . .133
Diagnosing an Ice Machine That Will Not Run
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
QF0400/QC0700/QF0800/QF2200/QF2300
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
RFC0985/RFC1285/RFC2085/RFC2385
DiagnosingACondensingUnitThatWillNot
Run . . . . . . . . . . . . . . . . . . . . . . . . . . .136
QF0400/QC0700/QF0800/QF2200/QF2300
Operational Problem Checklist . . . . . .137
SN012/SN020/SF0400/SN0450/SF0600/
SN0650/SF0900/SN0950/SF1200/SN1250
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Refrigeration Diagnostics . . . . . . . . . . . .146
Before Beginning Service . . . . . . . . . .146
Installation/Visual Inspection Checklist 146
Water System Checklist . . . . . . . . . . .147
Ice Production/Quality Check . . . . . . .148
Analyzing Discharge Pressure . . . . . .149
Analyzing Suction Pressure . . . . . . . .151

8 Part Number 80-1230-9 10/10
Component Check Procedures
QF0400/QC0700/QF0800/QF2200/QF2300 153
Main Fuse . . . . . . . . . . . . . . . . . . . . . . 153
ICE/OFF/CLEAN Toggle Switch . . . . . 154
Water Float Valve . . . . . . . . . . . . . . . . 155
Water Level Check . . . . . . . . . . . . . . . 156
Bin Level Probe Diagnostics . . . . . . . . 157
Water Level Probes . . . . . . . . . . . . . . 161
Motor Speed Sensor . . . . . . . . . . . . . 165
Temperature Sensor . . . . . . . . . . . . . . 167
QF2200 Only . . . . . . . . . . . . . . . . . . . . . . . 169
Low Pressure Cut-Out Control . . . . . . 169
QF2300 Only . . . . . . . . . . . . . . . . . . . . . . . 170
Equalization Valve . . . . . . . . . . . . . . . 170
Electronic Bin Thermostat . . . . . . . . . 171
S Model Nugget/Flake . . . . . . . . . . . . . . . 176
Main Fuse . . . . . . . . . . . . . . . . . . . . . . 176
ICE/OFF/CLEAN Toggle Switch . . . . . 177
Float Switch . . . . . . . . . . . . . . . . . . . . 178
Ice Damper and Hall Effect Switches . 179
SN012/SN020 Only . . . . . . . . . . . . . . . . . . 182
Selector Switch . . . . . . . . . . . . . . . . . . 182
Dispense Switch . . . . . . . . . . . . . . . . . 183
Touchless Sensor . . . . . . . . . . . . . . . . 184
All Models . . . . . . . . . . . . . . . . . . . . . . . . . 185
High Pressure Cutout Control . . . . . . . 185
Compressor Electrical Diagnostics . . . 187
Diagnosing Start Components . . . . . . 189
Self Contained Air Cooled Models . . . . . 191
Fan Cycle Control . . . . . . . . . . . . . . . . 191
Self Contained Water-cooled Models . . 192
Water Regulating Valve . . . . . . . . . . . 192
Headmaster Control Valve . . . . . . . . . . . 193
Refrigerant Recovery/Evacuation . . . . . 195
Normal Self-Contained Procedures . . 195
Remote Air-Cooled Models . . . . . . . . 199
System Contamination Clean-Up . . . . . . 202
Determining Severity Of Contamination 202
Cleanup Procedure . . . . . . . . . . . . . . 204
Replacing Pressure Controls Without Re-
moving Refrigerant Charge . . . . . . . . 207

Part Number 80-1230-9 10/10 9
Gear Box Removal . . . . . . . . . . . . . . . . . .210
QF0400 . . . . . . . . . . . . . . . . . . . . . . . .210
QC0700/QF0800 . . . . . . . . . . . . . . . . .212
QF2200/QF2300 . . . . . . . . . . . . . . . . .214
Evaporator Re-Build Kits . . . . . . . . . . . . .216
Identifying Correct Kit: . . . . . . . . . . . . .216
Cleaning Evaporator after Disassembly 219
Evaporator Reassembly . . . . . . . . . . .220
EVAPORATOR REMOVAL . . . . . . . . . . . .222
QF0400 . . . . . . . . . . . . . . . . . . . . . . . .222
QC0700/QF0800 . . . . . . . . . . . . . . . . .224
QF2200/QF2300 . . . . . . . . . . . . . . . . .226
Component Specifications
Main Fuse . . . . . . . . . . . . . . . . . . . . . .229
ICE/OFF/CLEAN Toggle Switch . . . . .229
Fan Cycle Control . . . . . . . . . . . . . . . .229
High Pressure Cutout (HPCO) Control 229
Torque Values . . . . . . . . . . . . . . . . . . .229
Gearmotor RPMs . . . . . . . . . . . . . . . .230
Filter-Driers . . . . . . . . . . . . . . . . . . . . .230
Suction Line Filter . . . . . . . . . . . . . . . .231
Suction Cleanup Filter-Drier . . . . . . . .231
Total System Refrigerant Charge . . . . . .232

10 Part Number 80-1230-9 10/10
Charts
Cycle Times/24-Hour Ice Production/
Refrigerant Pressure Charts . . . . . . . . . . 233
SN012A/SN020A . . . . . . . . . . . . . . . . 234
QF0400A Stainless Steel Evaporator . 235
QF0400A Bronze Evaporator . . . . . . . 236
SF0400A . . . . . . . . . . . . . . . . . . . . . . 237
SF0400W . . . . . . . . . . . . . . . . . . . . . . 238
SN0450A . . . . . . . . . . . . . . . . . . . . . . 239
SN0450W . . . . . . . . . . . . . . . . . . . . . . 240
SF0600A . . . . . . . . . . . . . . . . . . . . . . 241
SF0600W . . . . . . . . . . . . . . . . . . . . . . 242
SF0600N . . . . . . . . . . . . . . . . . . . . . . 243
SN0650A . . . . . . . . . . . . . . . . . . . . . . 244
SN0650W . . . . . . . . . . . . . . . . . . . . . . 245
SN0650N . . . . . . . . . . . . . . . . . . . . . . 246
QC0700A . . . . . . . . . . . . . . . . . . . . . . 247
QC0700W . . . . . . . . . . . . . . . . . . . . . . 248
QF0800A . . . . . . . . . . . . . . . . . . . . . . 249
QF0800W . . . . . . . . . . . . . . . . . . . . . . 250
SF900A . . . . . . . . . . . . . . . . . . . . . . . 251
SF900W . . . . . . . . . . . . . . . . . . . . . . . 252
SF900C/RFC985 . . . . . . . . . . . . . . . . 253
SN950A . . . . . . . . . . . . . . . . . . . . . . . 254
SN950W . . . . . . . . . . . . . . . . . . . . . . . 255
SN950C/RFC985 . . . . . . . . . . . . . . . . 256
SF1200A . . . . . . . . . . . . . . . . . . . . . . 257
SF1200W . . . . . . . . . . . . . . . . . . . . . . 258
SF1200C/RFC1285 . . . . . . . . . . . . . . 259
SN1250A . . . . . . . . . . . . . . . . . . . . . . 260
SN1250W . . . . . . . . . . . . . . . . . . . . . . 261
SN1250C/RFC1285 . . . . . . . . . . . . . . 262
QF2200/RFC2085 . . . . . . . . . . . . . . . 263
QF2300/RFC2385 . . . . . . . . . . . . . . . 264