Vollrath Stoelting U412 Series User manual

Model U412 Series
SERVICE MANUAL
Manual No. 513630 Rev.2

This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care.
The illustrations and specifications are not binding in detail. We reserve the right to make
changes to the machine without notice, and without incurring any obligation to modify or pro-
vide new parts for machines built prior to date of change.
DO NOTATTEMPT to operate the machine until instructions and safety precautions in this
manual are read completely and are thoroughly understood. If problems develop or questions
arise in connection with installation, operation, or servicing of the machine, contact Stoelting.
Stoelting Foodservice Equipment
502 Highway 67
Kiel, WI 53042-1600
U.S.A.
Main Tel: [phone]
Fax: [phone]
Customer Service: 888.429.5920
Fax: [phone]
Email: [email protected]
© 2014 PW Stoelting, LLC
stoeltingfoodservice.com

Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious per-
sonal injury. The message that follows the symbol
contains important information about safety.
Signal Word:
Signal words are distinctive words used throughout
this manual that alert the reader to the existence and
relative degree of a hazard.
CAUTION
The signal word “CAUTION” indicates a potentially
hazardous situation, which, if not avoided, may result
in minor or moderate injury and equipment/property
damage.
A Few Words About Safety
Safety Information
Read and understand the entire manual before
operating or maintaining Stoelting equipment.
This manual provides the operator with information
for the safe operation and maintenance of Stoelting
equipment. As with any machine, there are hazards
associated with their operation. For this reason safety
is emphasized throughout the manual. To highlight
specific safety information, the following safety defini-
tions are provided to assist the reader.
The purpose of safety symbols is to attract your at-
tention to possible dangers. The safety symbols, and
their explanations, deserve your careful attention
and understanding. The safety warnings do not by
themselves eliminate any danger. The instructions
or warnings they give are not substitutes for proper
accident prevention measures.
If you need to replace a part, use genuine Stoelting
parts with the correct part number or an equivalent
part. We strongly recommend that you do not use
replacement parts of inferior quality.
WARNING
The signal word “WARNING” indicates a potentially
hazardous situation, which, if not avoided, may result
in death or serious injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” not preceded by the
safety alert symbol indicates a potentially hazardous
situation, which, if not avoided, may result in equip-
ment/property damage.
NOTE (or NOTICE)
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety of personnel or equipment/property.

TABLE OF
CONTENTS
Section Description Page
1 Description and Specifications
1.1 Description.................................................................................................. 1
1.2 Specifications ............................................................................................. 2
1.3 Modes of Normal Operation ....................................................................... 3
1.4 Mix Level Indicators.................................................................................... 5
1.5 Storage Refrigeration ................................................................................. 5
1.6 Operation During Sensor Failure................................................................ 5
1.7 Motor Profile Cutout Compensation ........................................................... 5
2 Installation Instructions
2.1 Safety Precautions ..................................................................................... 7
2.2 Shipment and Transit.................................................................................. 7
2.3 Machine Installation.................................................................................... 7
2.4 Installing Permanent Wiring........................................................................ 7
2.5 Mix Pump.................................................................................................... 8
A. Mix Pump Hose Installation..................................................................................8
B. Mix Pickup Hose Installation ................................................................................8
C. Mix Low Level Indicator Adjustment.....................................................................10
3 Initial Set-Up and Operation
3.1 Operator’s Safety Precautions ................................................................... 11
3.2 Operating Controls and Indicators.............................................................. 11
3.3 Disassembly of Machine Parts ................................................................... 13
A. Disassembly of Blender and Front Door ..............................................................13
B. Disassembly of Auger ..........................................................................................13
3.4 Cleaning Disassembled Parts .................................................................... 13
3.5 Sanitizing Machine Parts ............................................................................ 14
3.6 Cleaning the Machine................................................................................. 14
3.7 Assembling Machine .................................................................................. 14
3.8 Sanitizing .................................................................................................... 15
3.9 Initial Freeze Down and Operation ............................................................. 16
A. Adding Mix ...........................................................................................................16
B. Preparing the IntelliTec Control............................................................................ 16
C. Initial Freeze Down ..............................................................................................17
D. Adjusting the IntelliTec Control.............................................................................17
E. Serving Product....................................................................................................17
3.10 Normal Freeze Down and Operation.......................................................... 17
3.11 Mix Information ........................................................................................... 18
3.12 Operation of Mix Pump............................................................................... 18
3.13 Mix Pump Cleaning .................................................................................... 19
3.14 Disassembly and Inspection of Removable Parts ...................................... 19