Manitowoc SN20, SN12 User Manual
Manitowoc
Nugget Ice Machines
Installation, Use & Care Manual
This manual is updated as new information and models are released.
America’s #1 Selling Ice Machine
Part Number 000005544 12/09
SN12, SN20 Model
Visit our website for the latest manual. www.manitowocice.com
Safety Notices
! Warning
!
Caution
Important
!
Caution
Important
! Warning
As you work on Manitowoc equipment, be sure to pay
close attention to the safety notices in this manual.
Disregarding the notices may lead to serious injury and/
or damage to the equipment.
Throughout this manual, you will see the following types
of safety notices:
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.
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 proc eeding, and
work carefully.
Procedural Notices
As you work on Manitowoc equipment, be sure to read
the procedural notices in this manual. These notices
supply helpful information which may assist you as you
work.
Throughout this manual, you will see the following types
of procedural notices:
Read These Before Proceeding:
Proper installation, care and maintenance are
essential for maximum performance and troublefree operation of your Manitow oc equipment. Read
and understand this manual. It contains valuable
care and maintenance information. If you encounter
problems not covered by this manual, do not
proceed, contact Manitowoc Foodservice. We will
be happy to provide assistance.
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
NOTE: SAVE THESE INSTRUCTIONS.
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 th e pr oce dur e yo u
are performing.
We reserve the right to make product improvements at any time.
Specifications and design are subject to change without notice.
Section 1
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Model/Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Flake/Chiplet/Nugget Commercial Ice Machine Warranty . . . . . . . . . . . . . . . . 1-3
Residential Ice Machine Limited Warrant y . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Section 2
Installation Instructions
Ice Machine Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Ice Machine Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Water Supply and Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Before Starting the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Table of Contents
Section 3
Ice Machine Operation
Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
SafeGuards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Section 4
Maintenance
Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Manitowoc’s Cleaning Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Component Disassembly For Cleaning/Sanitizing . . . . . . . . . . . . . . . . . . . . . . 4-7
Section 5
Before Calling For Service
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Safeguard Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
SafeGuard Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Part Number 000005544 12/09 1
Table of Contents (continued)
THIS PAGE INTENTIONALLY LEFT BLANK
2 Part Number 000005544 12/09
Section 1 General Information
!
Warning
Section 1
General Information
Model Numbers
This manual covers the following models:
Lever Activated
SN012A
Self Contained Air-Cooled
Nugget Ice Machine
SN020A
Self Contained Air-Cooled
Nugget Ice Machine
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision concerning use of the appliance by a
person responsible for their safety.
T ouchless Sensor
Activated
SN012AT
Self Contained Air-Cooled
Nugget Ice Machine
SN020AT
Self Contained Air-Cooled
Nugget Ice Machine
Accessories
MANITOWOC CLEANER AND SANITIZER
Manitowoc Ice Machine Cleaner and Sanitizer are
available in convenient 16 oz. (473 ml) and 1 g al (3.7 8 l)
bottles. These are the only cleaner and sanitizer
approved for use with Manitowoc products.
Cleaner Part Number Sanitizer Part Number
16 oz. 000000084
LEGS
Optional four inch adjustable legs are available.
TOUCHLESS SENSING OPTION
Touchless sensing ca n be ordered installed on the ice
machine from the factory or a field conversion kit is
available. The field conversion kit includes a
replacement front panel and instructions for installation.
16 oz. 94-0565-3
1 Gallon 94-0581-3
Part Number 000005544 12/09 1-1
General Information Section 1
MODEL / SERIAL
NUMBER DECALS
FRONT
(Panel Removed)
BACK PANEL
Model/Serial Number Location
These numbers are required when requesting
information from your local Manitowoc distributor,
service representative, or Manitowoc Foodse rv ice.
Record the model and serial number of your ice machine
in the space provided below.
The model and serial number are listed on the OWNER
WARRANTY REGISTRATION CARD. They are also
listed on the MODEL/SERIAL NUMBER DECAL affixed
to the ice machine head section and condensing unit.
Ice Machine
Model Number
Serial Number
1-2
Model/Serial Number Location
Part Number 000005544 12/09
Section 1 General Information
Flake/Chiplet/Nugget Commercial Ice Machine Warranty
Manitowoc Ice, Inc. (hereinafter referred to as the "COMPANY") warrants for a period of twentyfour months from the
installation date (except as limited below) that n ew Flake/ Chiplet ice machines manufactured by the COMPANY shall
be free of defects in material or workmanship under normal and proper use and maintenance as specified by the
COMPANY and upon proper installation and start-up in accordance with the instruction manual supplied with the ice
machine. The COMPANY'S warranty hereunder with respect to the compressor shall apply for an additional thirty-six
months, excluding all labor charges.
The obligation of the COMPANY under this warranty is limited to the repair or replacement of parts, components, or
assemblies that in the opinion of the COMPANY are defective. This warranty is further limited to the cost of parts,
components or assemblies and standard straight time labor charges at the servicing location.
Time and hourly rate schedules, as published from time to time by the COMPANY, apply to all service procedures.
Additional expenses including without limitation, travel time, overtime premium, material cost, accessing or removal of
the ice machine, or shipping are the responsibility of the owner, along with all maintenance, adjustments, cleaning,
and ice purchases. Labor covered under this warran ty must be performed by a COMPANY Contracted Service
Representative or a refrigeration service agency as qualified and authorized by the COMP ANY'S local Distributor . The
COMP ANY'S liability under this warranty shall in no event be greater than the actual purchase price paid by customer
for the ice machine.
The foregoing warranty shall not apply to (1) any part or assembly that has been altered, modified, or changed; (2)
any part or assembly that has been subjected to misuse, abuse, neglect, or accidents; (3) any ice machine that has
been installed and/or maintained inconsistent with the technical instructions provided by the COMP ANY; or (4) any ice
machine initially installed more than five years from the serial number production da te. This warranty shall not apply if
the Ice Machine's refrigeration system is modified with a condenser, heat reclaim device, or parts and assemblies
other than those manufactured by the COMPANY, unless the COMPANY approves these modifications for specific
locations in writing.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OR GUARANTEES OF ANY KIND, EXPRESSED
OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. In no event shall the COMPANY be liable for any special, indirect, incidental or
consequential damages. Upon the expiration of the warranty period, the COMPANY'S liability under this warranty
shall terminate. The foregoing warranty shall constitute the sole liability of the COMP ANY and the exclusive remedy of
the customer or user. To secure prompt and continuing warranty service, the warranty registration card must be
completed and sent to the COMPANY within five (5) days from the installation date.
Complete the following and retain for your record:
Distributor/Dealer
Model Number Serial Number
Installation Date
MANITOWOC ICE
2110 So. 26th St., P.O. Box 1720, Manitowoc, WI 54221-1720
Telephone: 920-682-0161 Fax: 920-683-7585
Web Site - www.manitowocice.com
Part Number 000005544 12/09 1-3
General Information Section 1
Residential Ice Machine Limited Warranty
WHAT DOES THIS LIMITED WARRANTY COVER?
Subject to the exclusions and limitations below,
ManitowocFoodservice. (“Manitowoc”) warrants to the
original consumer that any new ice machine
manufactured by Manitowoc (the “Product”) shall be
free of defects in material or workmanship for the
warranty period outlined below under normal use and
maintenance, and upon proper installation and start-up
in accordance with the instruction manual supplied with
the Product.
HOW LONG DOES THIS LIMITED WARRANTY
LAST?
Product Covered
Warranty Period
Ice Machine Twelve (12) months
from the sale date
WHO IS COVERED BY THIS LIMITED WARRANTY?
This limited warranty only applies to the original
consumer of the Product and is not transferable.
WHAT ARE MANITOWOC ICE’S OBLIGATIONS
UNDER THIS LIMITED WARRANTY?
If a defect arises and Manitowoc receives a valid
warranty claim prior to the expiration of the warranty
period, Manitowoc shall, at its option: (1) repair the
Product at Manitowoc’s cost, including standard straight
time labor charges, (2) replace the Product with one that
is new or at least as functionally equivalent as the
original, or (3) refund the purchase price for the Pr oduct.
Replacement parts are warranted for 90 days or the
balance of the original warranty period, whiche ve r is
longer. The foregoing constitutes Manitowoc’s sole
obligation and the consumer’s exclusive remedy for any
breach of this limited warranty. Manitowoc’s liability
under this limited warranty is limited to the purchase
price of Product. Additional expenses including, without
limitation, service travel time, overtime or premium labor
charges, accessing or removing the Product, or
shipping are the responsibility of the consumer.
HOW TO OBTAIN WARRANTY SERVICE
To obtain warranty service or information regarding your
Product, please contact us at:
MANITOWOC FOODSERVICE.
2110 So. 26th St.
P.O. Box 1720,
Manitowoc, WI 54221-1720
Telephone: 920-682-0161 Fax: 920-683-7585
www.manitowocice.com
WHAT IS NOT COVERED?
This limited warranty does not cover, and you are solely
responsible for the costs of: (1) periodic or routine
maintenance, (2) repair or replacement of the Product
or parts due to normal wear and tear, (3) defects or
damage to the Product or parts resulting from misuse,
abuse, neglect, or accidents, (4) defects or damage to
the Product or parts resulting from improper or
unauthorized alterations, modifications, or changes; and
(5) defects or damage to any Product that has not been
installed and/or maintained in accordance with the
instruction manual or technical instructions provided by
Manitowoc. To the extent that warranty exclusions are
not permitted under some state laws, these exclusions
may not apply to you.
E
XCEPT AS STATED IN THE FOLLOWING SENTENCE, THIS
L
IMITED WARRANTY IS THE SOLE AND EXCLUSIVE
W
ARRANTY OF MANITOWOC WITH REGARD TO THE
P
RODUCT. ALL IMPLIED WARRANTIES ARE STRICTLY
L
IMITED TO THE DURATION OF THE LIMITED WARRANTY
A
PPLICABLE TO THE PRODUCTS AS STATED ABOVE,
I
NCLUDING BUT NOT LIMITED TO, ANY WARRANTY OF
M
ERCHANTABILITY OR OF FITNESS FOR A PARTICULAR
P
URPOSE.
Some states do not allow limitations on how long an
implied warranty lasts, so the above limitation may not
apply to you.
I
N NO EVENT SHALL MANITOWOC OR ANY OF ITS
A
FFILIATES BE LIABLE TO THE CONSUMER OR ANY OTHER
P
ERSON FOR ANY INCIDENTAL, CONSEQUENTIAL OR
S
PECIAL DAMAGES OF ANY KIND (INCLUDING, WITHOUT
L
IMITATION, LOSS PROFITS, REVENUE OR BUSINESS)
A
RISING FROM OR IN ANY MANNER CONNECTED WITH THE
P
RODUCT, ANY BREACH OF THIS LIMITED WARRANTY, OR
A
NY OTHER CAUSE WHATSOEVER, WHETHER BASED ON
C
ONTRACT, TORT OR ANY OTHER THEORY OF LIABILITY.
Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above
limitation or exclusion may not apply to you.
HOW STATE LAW APPLIES
This limited warranty gives you specific legal rights, and
you may also have rights that vary from state to state or
from one jurisdiction to another.
REGISTRATION CARD
To secure prompt and continuing warranty service, this
warranty registration card must be completed and sent
to Manitowoc within thirty (30) days from the sale date.
Complete the registration card and send it to
Manitowoc.
1-4
Part Number 000005544 12/09
Section 2 Installation Instructions
Important
4.0" (10.2 cm)
8.0" (20.3 cm)
12.0" (30.5 cm)
16.0" (40.6 cm)
1.0" (2.5 cm)
1.25"
(3.2 cm)
24.0" (61.0 cm)
12.5" (31.8 cm)
SN12
35.0" (88.9 cm)
SN20
42.0" (106.7 cm)
Electrical
Drain
Water
Inlet
!
Caution
Section 2
Installation Instructions
Ice Machine Dimensions
These instructions are provided to assist the qualified
installer. Check your local Yellow Pages for the name of
the nearest Manitowoc distributor, or call Manitowoc
Foodservice for information regarding start-up service s.
Failure to follow these installation guidelines may
affect warranty coverage.
SN12 & SN20 AIR COOLED ICE MACHINES
• The location must not be near heat-generating
equipment or in direct sunlight.
• The location must be capable of supporting the
weight of the ice machine and a full bin of ice and
allow the ice machine to be level front to back and
side to side.
• The location must allow enough clearance for water
and electrical connections in the rear of the ice
machine. The drain can be routed out the rear or
bottom of dispenser.
• The location must not obstruct airflow through or
around the ice machine. Airflow is in the left side and
out the top. Refer to chart for clearance
requirements.
Ice Machine Clearance Requirements
SN12 SN20
Top 24” 24”
Sides 8” 8”
Back *5” *5”
*5” is recommended for servicing the ice machine. Clearance
can be 0” when water and drain connections exit the bottom of
the ice machine.
Location of Ice Machine
The location selected for the ice machine must meet the
following criteria. If any of these criteria are not met,
select another location.
• The location must be free of airborne and other
contaminants.
• The air temperature must be at least 45°F (7°C), but
must not exceed 110°F (43.4°C).
• The water temperature must be at least 45°F (7°C),
but must not exceed 90°F (32.2°C).
Part Number 000005544 12/09 2-1
The ice machine head section must be protected if i t
will be subjected to temperatures below 32°F (0°C).
Failure caused by exposure to freezing
temperatures is not covered by the warranty. See
“Removal from Service/Winterization”.
Installation Instructions Section 2
!
Warning
!
Warning
Important
Electrical Service
All wiring must conform to local, state and national
codes.
VOLTAGE
The maximum allowable voltage variation is ±1 0% of the
rated voltage on the ice machine model/serial number
plate at start-up (when the electrical load is highest).
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine. Circuit breakers must be H.A.C.R.
rated (does not apply in Canada).
115/60/1 ice machines are factory pre-wired with a
power cord and 5-15P plug.
230/50/1 ice machines are factory pre-wired with a
power cord, no plug is supplied.
The ice machine must be grounded in accordance
with national and local electrical codes.
TOTAL CIRCUIT AMPACITY
The total circuit ampacity is used to help select the wire
size of the electrical supply.
The wire size (or gauge) is also dependent upon
location, materials used, length of run, etc., so it must be
determined by a qualified electrician.
Electrical Requirements
Air-Cooled
Maximum
Breaker
Total
Circuit
Amps
Ice Machine
SN12
SN20
Voltage
Phase
Cycle
115/1/60 15 10.3
230/1/50 15 4.6
115/1/60 15 10.3
230/1/50 15 6.0
Fuse/Circuit
Water Supply and Drains
POTABLE WATER SUPPLY
Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.
If you are installing a Manitowoc water filter system,
refer to the Installation Instructions supplied with the
filter system for ice making water inlet connections.
POTABLE WATER INLET LINES
Follow these guidelines to install water inlet lines:
• Do not connect the ice machine to a hot water
supply. Be sure all hot water restrictors installed for
other equipment are working. (Check valves on sink
faucets, dishwashers, etc.)
• If water pressure exceeds the maximum (80 psig
551.5 kPA) recommended pressure, obtain a water
pressure regulator from your Manitowoc distributor.
• Install a water shut-off valve and union for the ice
making water lines.
• Insulate water inlet lines to prevent condensation.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines:
• Drain lines must have a 1.5 inch drop per 5 feet of
run (2.5 cm per meter), and must not create traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Insulate drain lines to prevent condensation.
• Drains must have a union or other suitable means to
allow in place disconnection from the ice machine
when servicing is required.
2-2
Part Number 000005544 12/09
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