Manitowoc Ice S Series User Manual

S Model

Ice Machines

Installation

Use and Care

Manual

Thank you for selecting a Manitowoc Ice Machine, the dependability leader in ice making equipment and related
products. With proper installation, care and maintenance, your new Manitowoc Ice Machine will provide you with many
years of reliable and economical performance.

This manual is updated as new information and mod els
are released. Visit our website for the latest manual.
www.manitowocice.com

Part Number 80-1620-3

12/2004

Safety Notices

Procedural Notices

As you work on an S Model Series Ice Machine, 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 ice machine.

Throughout this manual, you will see the following types
of safety notices:

Warning

!

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.

!

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 ice machine. Be sure
to read the Caution statement before proceeding,
and work carefully.

As you work on an S Model Series Ice Machine, 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:

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 ice production and trouble­free operation of your Manitowoc Ice Machine.
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 Ice, Inc. We will be
happy to provide assistance.

Important

Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.

MANITOWOC ICE, INC.

2110 South 26th Street P.O. Box 1720

Manitowoc, WI 54221-1720

Phone: [phone]

Service Fax: [phone]

Web Site - www.manitowocice.com

© 2004 Manitowoc Ice, Inc.

Litho in U.S.A.

Section 1
General Information

Table of Contents

Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

How to Read a Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Ice Cube Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Bin Caster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Ice Bagger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Guardian Sachet Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Arctic Pure Water Filter System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Manitowoc Cleaner and Sanitizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

AuCS® Automatic Cleaning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Model/Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Owner Warranty Registration Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Warranty Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Labor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Exclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Authorized Warranty Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Section 2
Installation Instructions

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Ice Machine Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Ice Storage Bin Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Remote Condenser Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Ice Machine Heat of Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Removing Drain Plug and Leveling the Ice Storage Bin . . . . . . . . . . . . . . . . 2-8

Air-Cooled Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

S320/S420 Air and Water-Cooled Ice Machines . . . . . . . . . . . . . . . . . . . . 2-1

S600 Air and Water-Cooled Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

S600 Remote Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

S300/S450/S500/S850/s1000/S1200 Air and Water-Cooled Ice Machines 2-3

S500/S850/S1000 Remote Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

S1400/S1600/S1800 Air and Water-Cooled Ice Machines . . . . . . . . . . . . . 2-5

S1400 / S1800 Remote Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

30 inch (76 cm) Ice Storage Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

22 Inch (56 cm) Ice Storage Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

48 Inch (130 cm) Ice Storage Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

JC0495/JC0895/JC1395 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Minimum Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Maximum breaker size & Minimum Circuit Amperage Chart . . . . . . . . . . . 2-10

Part Number 80-1620-3 1

Table of Contents (continued)

Self-Contained Electrical Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Self Contained Ice Machine 115/1/60 or 208-230/1/60 . . . . . . . . . . . . . . . . 2-11

Self Contained Ice Machine 208-230/3/60 . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Self Contained Ice Machine 230/1/50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Remote Electrical Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Remote Ice Machine With Single Circuit Model Condenser

115/1/60 or 208-230/1/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Remote Ice Machine With Single Circuit Model Condenser

208-230/3/60 or 380-415/3/50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Remote Ice Machine With Single Circuit Model Condenser

230/1/50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Water Supply and Drain Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Water Inlet Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Cooling Tower Applications (Water-Cooled Models) . . . . . . . . . . . . . . . . . . . 2-13

Water Supply and Drain Line Sizing/Connections . . . . . . . . . . . . . . . . . . . . 2-14

Remote Condenser/Line Set Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Remote Ice Machines Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Guidelines for Routing Line Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Calculating Remote Condenser Installation Distances . . . . . . . . . . . . . . . . 2-17

Lengthening or Reducing Line Set Lengths . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Connecting A Line Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Remote Receiver Service Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Remote Ice Machine Usage with Non-Manitowoc Multi-Circuit Condensers 2-19

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Head Pressure Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Internal Condenser Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Condenser DT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Quick Connect Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Non-Manitowoc Multi-Circuit Condenser Sizing Chart . . . . . . . . . . . . . . . . . 2-20

Installation Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Additional Checks for Remote Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Before Starting the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

AuCS® Automatic Cleaning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Section 3
Ice Machine Operation

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . 3-2

Freeze Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Harvest Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Safety Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Warm Water Rinse Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Water Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Ice Thickness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Harvest Sequence Water Purge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Section 4

2 Part Number 80-1620-3

Maintenance

Table of Contents (continued)

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Ice Machine Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Cleaning the Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Water-Cooled Condenser and Water Regulating Valve . . . . . . . . . . . . . . . . . 4-2

AlphaSan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Guardian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Guardian Sachet Replacement Frequency . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Sachet Installation/Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Clean Up Procedure for Damaged Sachet Packet . . . . . . . . . . . . . . . . . . . 4-3

Interior Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Removal of Parts For Cleaning/Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Removing the Front Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Self-Contained Air-Cooled Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Water-Cooled Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Remote Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

AuCS Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Section 5
Before Calling For Service

Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Safety Limit Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Part Number 80-1620-3 3

Table of Contents (continued)

4 Part Number 80-1620-3

Section 1 General Information

Section 1

General Information

Model Numbers

Warning

This manual covers the following models:

Self-Contained

Air-Cooled

SD0302A
SY0304A
SD0322A
SY0324A
SR0420A
SD0422A
SY0424A
SD0452A
SY0454A
SR0500A
SD0502A
SY0504A
SD0602A
SY0604A
SR0850A
SD0852A
SY0854A
SD1002A
SY1004A
SD1202A
SY1204A
SD1402A
SY1404A
SD1602A
SY1604A
SR1800A
SD1802A
SY1804A

Self-Contained

Water-Cooled

SD0303W
SY0305W
SD0323W
SY0325W
SR0421W
SD0423W
SY0425W
SD0453W
SY0455W

SR501W
SD0503W
SY0505W
SD0603W
SY0605W
SR0851W
SD0853W
SY0855W
SD1003W
SY1005W
SD1203W
SY1205W
SD1403W
SY1405W
SD1603W
SY1605W
SR1801W
SD1803W
SY1805W

Remote

----

----

----

----

----

----

----

----

SD0592N
SY0594N

SD0692N
SY0694N
SR0890N
SD0892N
SY0894N
SD1092N
SY1094N

---

--­SD1492N
SY1494N
SD1692N
SY1694N
SR1890N
SD1892N
SY1894N

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.

PERSONAL INJURY POTENTIAL

Remove all ice machine panels before lifting and
installing.

How to Read a Model Number

9 REMOTE

AIR-COOLED

ICE MACHINE

MODEL

ICE CUBE SIZE

R REGULAR
D DICE
Y HALF DICE

Ice Cube Sizes

!

!

Warning

# CUBE SIZE

0 REGULAR
1 REGULAR
2 DICE
3 DICE
4 HALF-DICE
5 HALF-DICE

CONDENSER TYPE

AIR-COOLED
WAT ER-COOLED
AIR-COOLED
WAT ER-COOLED
AIR-COOLED
WAT ER-COOLED

S Y 1094 N

ICE MACHINE

SERIES

CONDENSER TYPE

A SELF-CONTAINED AIR-COOLED
W SELF-CONTAINED WAT ER-COOLED
N REMOTE AIR-COOLED

NOTE: Model numbers ending in 3 indicate a 3-phase
unit. Example: SY1004A3

Regular

1-1/8" x 1-1/8" x 7/8"

2.86 x 2.86 x 2.22 cm

Part Number 80-1620-3 1-1

Dice

7/8" x 7/8" x 7/8"

2.22 x 2.22 x 2.22 cm

Half Dice

3/8" x 1-1/8" x 7/8"

0.95 x 2.86 x 2.22 cm

General Information Section 1

Accessories

Contact your Manitowoc distributor for these optional
accessories:

BIN CASTER

Replaces standard legs.

ICE BAGGER

Maximize profits from bagged ice sales with this
convenient accessory. This sturdy unit rests on the bin
door frame, and adapts for left or right side filling.

GUARDIANf SACHET PACKETS

Guardian sachet packets release chlorine dioxide on a
controlled basis to inhibit the growth of bacteria and
slime.

Guardian sachet packets are available through your
local Manitowoc Ice Machine dealer.

ARCTIC PUREf WATER FILTER SYSTEM

Engineered specifically for Manitowoc ice machines,
This water filter is an efficient, dependable, and
affordable method of inhibiting scale formation, filtering
sediment, and removing chlorine taste and odor.

MANITOWOC CLEANER AND SANITIZER

Manitowoc Ice Machine Cleaner and Sanitizer are
available in convenient 16 oz. (473 ml) bottles. These
are the only cleaner and sanitizer approved for use with
Manitowoc products.

Cleaner Part Number Sanitizer Part Number

16 ounce Bottle - 94-0546-3 16 ounce Bottle - 94-0565-3

AuCS®-SO - 94-0546-3 AuCS®-SO - 94-0565-3

AuCS®-SI - 40-1326-3 AuCS®-SI - 40-1327-3

AUCS® AUTOMATIC CLEANING SYSTEM

This accessory reduces equipment cleaning expense.
The AuCS® accessory monitors ice making cycles and
initiates cleaning procedures automatically.

DISPENSER

A counter-top dispenser is ideal for cafeterias and many
types of self-service facilities. Manitowoc auto-fill, floor­standing ice dispensers meet the strict sanitary
requirements of the food service, lodging and health
care industries.

1-2 Part Number 80-1620-3

Section 1 General Information

Model/Serial Number Location

These numbers are required when requesting
information from your local Manitowoc distributor, or
Manitowoc Ice, Inc.

SV13147

The model and serial number are listed on the MODEL/
SERIAL NUMBER DECAL affixed to the ice machine,
remote condenser and storage bin.

MODEL/SERIAL DECAL

LOCATION

Model/Serial Number Location

Part Number 80-1620-3 1-3

General Information Section 1

Owner Warranty Registration Card

GENERAL

The packet containing this manual also includes
warranty information. Warranty coverage beg ins the day
your new ice machine is installed.

Important

Complete and mail the OWNER WARRANTY
REGISTARATION CARD as soon as possible to
validate the installation date.

If you do not return your OWNER WARRANTY
REGISTRATION CARD, Manitowoc will use the date of
sale to the Manitowoc Distributor as the first day of
warranty coverage for your new ice machine.

Warranty Coverage

GENERAL

The following Warranty outline is provided for your
convenience. For a detailed explanation, read the
warranty bond shipped with each product.

Contact your local Manitowoc Distributor, Manitowoc Ice,
Inc. or visit our website at www .manitowocice.com if you
need further warranty information.

Important

This product is intended exclusively for commercial
application. No warranty is extended for personal,
family, or household purposes.

PARTS

1. Manitowoc warrants the ice machine against defects
in materials and workmanship, under normal use
and service for three (3) years from the date of
original installation.

2. The evaporator and compressor are covered by an
additional two (2) year (five years total) warranty
beginning on the date of the original installation.

LABOR

1. Labor required to repair or replace defective
components is covered for three (3) years from the
date of original installation.

2. The evaporator is covered by an additional two (2)
year (five years total) labor warranty beginning on
the date of the original installation.

EXCLUSIONS

The following items are not
warranty coverage:

1. Normal maintenance, adjustments and cleaning.

2. Repairs due to unauthorized modifications to the
ice machine or use of non-standard parts without
prior written approval from Manitowoc Ice, Inc.

3. Damage caused by improper installation of the ice
machine, electrical supply , water supp ly or drainage,
or damage caused by floods, storms, or other acts of
God.

4. Premium labor rates due to holidays, overtime,
etc.; travel time; flat rate service call charges;
mileage and miscellaneous tools and material
charges not listed on the payment schedule.
Additional labor charges resulting from the
inaccessibility of equipment are also excluded.

5. Parts or assemblies subjected to misuse, abuse,
neglect or accidents.

6. Damage or problems caused by installation,
cleaning and/or maintenance procedures

inconsistent with the technical instructions
provided in this manual.

7. This product is intended exclusively for
commercial application. No warranty is extended

for personal, family, or household purposes.

AUTHORIZED WARRANTY SERVICE
To comply with the provisions of the warranty, a

refrigeration service company qualified and
authorized by a Manitowoc distributor, or a
Contracted Service Representative must perform the
warranty repair.

NOTE: If the dealer you purchased the ice machine from
is not authorized to perform warranty service, contact
your Manitowoc distributor or Manitowoc Ice, Inc. for the
name of the nearest authorized service representative.

Service Calls
Normal maintenance, adjustments and cleaning as

outlined in this manual are not covered by the
warranty. If you have followed the procedures listed on

page 5-1 of this manual, and the ice machine still does
not perform properly, call your authorized service
company.

included in the ice machine’s

1-4 Part Number 80-1620-3

Section 2 Installation Instructions

Section 2

Installation Instructions

General

These instructions are provided to assist the qualified
installer. Check your local Yellow Pages for the name of
the nearest Manitowoc distributor , or ca ll Manitowoc Ice,
Inc. for information regarding start-up services.

Ice Machine Dimensions

S320/S420 AIR AND WATER-COOLED ICE MACHINES

Failure to follow these installation guidelines may
affect warranty coverage.

ELECTRICAL

Important

2.20" (5.58cm)

5.0" (12.7cm)

AUCS

ELECTRICAL

H

19.3"
(49.0 cm)

4" (10cm)

2.6"
(6.6cm)

1.8"
(4.6cm)

3.25" (8.3cm)

5.06" (12.85cm)

6.68" (16.96cm)

8.49" (21.56cm)

1.1" (2.6cm)

17.0" (43.2cm)

4.21" (10.69cm)

2.85" (7.30cm)

D

W

AUCS

TUBING &

MODULAR

WIRE

DRAIN 1/2"NPTF

CONDENSER WATER
OUTLET 1/2"FPT
(Water-Cooled Only)

AUXILLARY BASE DRAIN

1/2"CPVC SOCKET
WATER INLET
3/8"FPT

CONDENSER WATER
INLET 3/8"FPT
(Water-Cooled Only)

Ice Machine Dimension W Dimension D Dimension H

S320 22 in. (55.9 cm) 24.5 in. (62.2 cm) 21.5 in (54.6 cm)
S420 22 in. (55.9 cm) 24.5 in. (62.2 cm) 21.5 in (54.6 cm)

Part Number 80-1620-3 2-1

Installation Instructions Section 2

S600 AIR AND WATER-COOLED ICE MACHINES

H

1.50" (3.81cm)

A

8.50" (21.60cm)

6.50" (16.5cm)

B

2.61"
(6.62cm)

1.81"
(4.59cm)

5.06" (12.85cm)

6.68" (16.96cm)

7.75" (19.7 cm)

17.25" (43.81 cm)

2.85" (7.30cm)

4.25" (10.81 cm)

D

W

ELECTRICAL

AUCS

CONNECTIONS

AUXILLARY BASE DRAIN
1/2"CPVC SOCKET

WATER INLET
3/8"FPT

DRAIN 1/2"NPTF

CONDENSER WATER
OUTLET 1/2"FPT
(Water-Cooled Only)

CONDENSER WATER
INLET 3/8"FPT
(Water-Cooled Only)

Ice Machine Dimension A Dimension B Dimension W Dimension D Dimension H

S600 11.5 in (29.2 cm) 9.0 in (22.9 cm) 30 in. (76.2 cm) 24.50 in. (62.2 cm) 21.5 in (54.6 cm)

S600 REMOTE ICE MACHINES

H

1.50" (3.81cm)

1.81"

A

B

2.61"
(6.62cm)

(4.59cm)

5.06" (12.85cm)

6.68" (16.96cm)

11.50" (29.21cm)

6.25" (15.88cm)

D

16.0" (40.64cm)

W

ELECTRICAL

REMOTE CONDENSER
ELECTRICAL

AUXILLARY BASE
DRAIN 1/2"CPVC
SOCKET

WATER INLET
3/8"FPT

DRAIN 1/2"NPTF

REFRIGERANT
LIQUID LINE

REFRIGERANT
DISCHARGE LINE

Ice Machine Dimension A Dimension B Dimension W Dimension D Dimension H

S600 11.5 in (29.2 cm) 9.0 in (22.9 cm) 30 in. (76.2 cm) 24.50 in. (62.2 cm) 21.5 in (54.6 cm)

2-2 Part Number 80-1620-3

Section 2 Installation Instructions

S300/S450/S500/S850/S1000/S1200 AIR AND WATER-COOLED ICE MACHINES

ELECTRICAL

2.20" (5.58cm)

A

B

2.61"
(6.62cm)

SV3143

1.81"
(4.59cm)

C

5.06" (12.85cm)

6.68" (16.96cm)

8.49" (21.56cm)

F

1.06 (2.7cm)

25.52" (64.82cm)

E

4.21" (10.69cm)

2.85" (7.30cm)

W

H

AUCS

CONNECTIONS

CONDENSER WATER
OUTLET 1/2"FPT
(Water-Cooled Only)

D

AUXILLARY BASE
DRAIN 1/2"CPVC
SOCKET

WATER INLET
3/8"FPT

DRAIN 1/2"NPTF

CONDENSER WATER
INLET 3/8"FPT
(Water-Cooled Only)

Width, Depth, and Height Dimensions

Ice Machine Dimension W Dimension D Dimension H

S300 30 in. (76.2 cm) 24.50 in. (62.2 cm) 16.5 in (41.9 cm)
S450 30 in. (76.2 cm) 24.50 in. (62.2 cm) 21.5 in (54.6 cm)
S500 30 in. (76.2 cm) 24.50 in. (62.2 cm) 21.5 in (54.6 cm)

S850 30 in. (76.2 cm) 24.50 in. (62.2 cm) 26.5 in (67.3 cm)
S1000 30 in. (76.2 cm) 24.50 in. (62.2 cm) 26.5 in (67.3 cm)
S1200 30 in. (76.2 cm) 24.50 in. (62.2 cm) 29.5 in (74.9cm)

SV3143B

Electrical and AuCS Dimensions

Ice Machine

Dimension A Dimension B Dimension C Dimension E Dimension F

S300 14.00 in (35.6 cm) NA 10.0 in (25.4 cm) 6.0 in (15.24 cm) 4.0 in (10.16 cm)
S450 19.25 in (48.9 cm) 17.5 in (44.45 cm) 8.5 in (21.6 cm) 8.5 in (21.6 cm) 6.5 in (16.5 cm)
S500 19.25 in (48.9 cm) 17.5 in (44.45 cm) 8.5 in (21.6 cm) 8.5 in (21.6 cm) 6.5 in (16.5 cm)

S850 23.82 in (60.5 cm) 22.32 in (56.69 cm) 8.5 in (21.6 cm) 8.5 in (21.6 cm) 6.5 in (16.5 cm)
S1000 23.82 in (60.5 cm) 22.32 in (56.69 cm) 8.5 in (21.6 cm) 8.5 in (21.6 cm) 6.5 in (16.5 cm)
S1200 27.0 in (68.6 cm) 25.25 in (54.1 cm) 8.5 in (21.6 cm) 8.5 in (21.6 cm) 6.5 in (16.5 cm)

Part Number 80-1620-3 2-3

Electrical AuCS

Installation Instructions Section 2

S500/S850/S1000 REMOTE ICE MACHINES

ELECTRICAL

2.20" (5.58cm)

A

H

B

1.81"
(4.59cm)

1.06 (2.69cm)

6.12" (15.54cm)

REMOTE CONDENSER
ELECTRICAL

2.61"
(6.62cm)

SV3146

5.06" (12.85cm)

6.68" (16.96cm)

12.26" (42.27cm)

16.64" (64.82cm)

W

D

REFRIGERANT
WATER INLET
3/8"FPT

DRAIN 1/2"NPTF

LIQUID LINE

REFRIGERANT
DISCHARGE LINE

Ice Machine Dimension A Dimension B Dimension W Dimension D Dimension H

S300 14.00 in (35.6 cm) NA 30 in. (76.2 cm) 24.50 in. (62.2 cm) 16.5 in (41.9 cm)
S450 19.25 in (48.9 cm) 17.5 in (44.45 cm) 30 in. (76.2 cm) 24.50 in. (62.2 cm) 21.5 in (54.6 cm)
S500 19.25 in (48.9 cm) 17.5 in (44.45 cm) 30 in. (76.2 cm) 24.50 in. (62.2 cm) 21.5 in (54.6 cm)
S850 23.82 in (60.5 cm) 22.32 in (56.69 cm) 30 in. (76.2 cm) 24.50 in. (62.2 cm) 26.5 in (67.3 cm)

S1000 23.82 in (60.5 cm) 22.32 in (56.69 cm) 30 in. (76.2 cm) 24.50 in. (62.2 cm) 26.5 in (67.3 cm)

Ice Storage Bin Dimensions

30 INCH (76 CM) ICE STORAGE BINS 22 INCH (56 CM) ICE STORAGE BINS

SV3146B

SV1609

Bin Model Dimension A Dimension B

B170 29.5 in (74.9 cm) 19.1 in (48.5 cm)
B400 34.0 in (86.3 cm) 32.0 in (81.3 cm)
B570 34.0 in (86.3 cm) 44.0 in (111.7 cm)

Bin Model Dimension A Dimension B

B320 34.0 in (86.3 cm) 32.0 in (81.3 cm)
B420 34.0 in (86.3 cm) 44.0 in (111.7 cm)

SV1614

2-4 Part Number 80-1620-3

Section 2 Installation Instructions

S1400/S1600/S1800 AIR AND WATER-COOLED ICE MACHINES

2.50" (6.35cm)

A

B

C

11.0" (27.9cm)

H

E

5.75" (14.6cm)

3.0" (7.6cm)

3.75" (9.5cm)

D

4.0"
(10.2cm)

1.1" (2.8cm)

7.8" (19.8cm)

10.25" (26.0cm)

11.0" (27.9cm)

2.0" (5.1cm)

F

W

ELECTRICAL

WATER INLET
3/8"FPT

AUXILLARY BASE DRAIN
1/2"CPVC SOCKET

AuCS

Connections

DRAIN 1/2"NPTF

CONDENSER WATER
OUTLET 1/2"FPT
(Water-Cooled Only)

CONDENSER WATER
INLET 3/8"FPT
(Water-Cooled Only)

Width, Depth, and Height Dimensions

Ice Machine Dimension W Dimension D Dimension H

S1400 48 in. (121.9 cm) 24.5 in. (62.2 cm) 29.5 in (74.9 cm)
S1600 48 in. (121.9 cm) 24.5 in. (62.2 cm) 29.5 in (74.9 cm)
S1800 48 in. (121.9 cm) 24.5 in. (62.2 cm) 29.5 in (74.9 cm)

Electrical and AuCS Dimensions

Ice Machine

Dimension A Dimension B Dimension C Dimension E Dimension F

S1400 22.75 in (57.8 cm) 22.25 in (56.5 cm) 14.0 in (35.6 cm) 9.5 in (24.1 cm) 7.5 in (19.1 cm)
S1600 Not Available at Time of Printing
S1800 22.75 in (57.8 cm) 22.25 in (56.5 cm) 14.0 in (35.6 cm) 9.5 in (24.1 cm) 7.5 in (19.1 cm)

Electrical AuCS

S1400 / S1800 REMOTE ICE MACHINES

2.50" (6.35cm)

A

B

4.0"
(10.2cm)

1.1" (2.8cm)

7.8" (19.8cm)

10.25" (26.0cm)

11.0" (27.9cm)

C

2.0" (5.1cm)

23.75" (60.3cm)

28.25" (71.8cm)

11.0" (27.9cm)

8.0"
(20.3cm)

E

F

5.75" (14.6cm)

3.0" (7.6cm)

3.75" (9.5cm)

H

D

W

Ice Machine Dimension A Dimension B Dimension W Dimension D Dimension H

S1400 22.75 in (57.8 cm) 22.25 in (56.5 cm) 48 in. (121.9 cm) 24.5 in. (62.2 cm) 29.5 in (74.9 cm)
S1600 Not Available at Time of Printing 48 in. (121.9 cm) 24.5 in. (62.2 cm) 29.5 in (74.9 cm)
S1800 22.75 in (57.8 cm) 22.25 in (56.5 cm) 48 in. (121.9 cm) 24.5 in. (62.2 cm) 29.5 in (74.9 cm)

ELECTRICAL

WATER INLET
3/8"FPT

AUXILLARY BASE DRAIN
1/2"CPVC SOCKET

AuCS

Connections

DRAIN 1/2"NPTF

CONDENSER WATER
OUTLET 1/2"FPT
(Water-Cooled Only)

REFRIGERANT
DISCHARGE LINE

CONDENSER WATER
INLET 3/8"FPT
(Water-Cooled Only)

REFRIGERANT
LIQUID LINE

Part Number 80-1620-3 2-5

Installation Instructions Section 2

Ice Storage Bin Dimensions

48 INCH (130 CM) ICE STORAGE BINS

SV1297

Remote Condenser Dimensions

JC0495/JC0895/JC1395

SV1297

B970

2-6 Part Number 80-1620-3

Section 2 Installation Instructions

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 35°F (1.6°C),
but must not exceed 110°F (43.4°C).

• Remote air cooled - The air temperature must be at
least -20°F (-29°C), but must not exceed 120°F
(49°C)

• The location must not be near heat-generating
equipment or in direct sunlight and must be protected
from weather.

• The location must not obstruct air flow through or
around the ice machine. Refer to the chart below for
clearance requirements.

S300/S320/ S450/S500/

S600/S850/S1000

Top/Sides 8" (20.3 cm) 8" (20.3 cm)

Back 5" (12.7 cm) 5" (12.7 cm)

S420

Top/Sides 12" (30.5 cm) 8" (20.3 cm)

Back 5" (12.7 cm) 5" (12.7 cm)

S1200

Top 8" (20.3 cm) 8" (20.3 cm)
Sides 12" (30.5 cm) 8" (20.3 cm)
Back 5" (12.7 cm) 5" (12.7 cm)

S1400/S1600/S1800

Top/Sides 24" (61.0 cm) 8" (20.3 cm)

Back 12" (30.5 cm) 5" (12.7 cm)

*There is no minimum clearance required for water-cooled or remote

ice machines. This value is recommended for efficient operation and
servicing only.

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Water-Cooled

and Remote*

Water-Cooled

and Remote*

Water-Cooled

and Remote*

Water-Cooled

and Remote*

Ice Machine Heat of Rejection

Series

Ice Machine

S300 3800 6000
S320 3800 6000
S420 7000 9600
S450 7000 9600
S500 7000 9600
S600 9000 13900

S850 12000 18000
S1000 16000 22000
S1200 Not Available at Time of Printing
S1400 19000 28000
S1600 Not Available at Time of Printing
S1800 24000 36000

B.T.U./Hour
Because the heat of rejection varies during the ice making cycle,

the figure shown is an average.

Air Conditioning

Heat of Rejection

Ice machines, like other refrigeration equipment, reject
heat through the condenser. It is helpful to know the
amount of heat rejected by the ice machine when sizing
air conditioning equipment where self -c on tained air ­cooled ice machines are installed.

This information is also necessary when evaluating the
benefits of using water-cooled or remote condensers to
reduce air conditioning loads. The amount of heat added
to an air conditioned environment by an ice machine
using a water-cooled or remote condenser is negligible.

Knowing the amount of heat rejected is also important
when sizing a cooling tower for a water-cooled
condenser. Use the peak figure for sizing the cooling
tower.

Peak

Caution

!

The ice machine must be protected if it 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”.

Part Number 80-1620-3 2-7

Installation Instructions Section 2

Removing Drain Plug and Leveling the Ice
Storage Bin

1. Remove threaded plug from drain fitting.

2. Scr ew the leveling legs onto the bottom of the bin.

3. Screw the foot of each leg in as far as possible.

Caution

!

The legs must be screwed in tightly to prevent them
from bending.

4. Move the bin into its final position.

5. Level the bin to assure that the bin door closes and
seals properly . Use a level on top of the bin. T urn the
base of each foot as necessary to level the bin.

6. Inspect bin gasket prior to ice machine installation.
(Manitowoc bins come with a closed cell foam
gasket installed along the top surface of the bin.)

7. Remove all panels from ice machine before lifting.
Remove both front panels, top cover, left and right
side panels.

8. Install ice machine on bin.

Air-Cooled Baffle

SELF-CONTAINED AIR-COOLED ONLY
The air-cooled baffle prevents condenser air from

recirculating. To install:

1. Remove the back panel screws next to the
condenser.

2. Align the mounting holes in the air baffle with the
screw holes and reinstall the screws.

SCREWS

AIR

BAFFLE

THREAD LEVELING
LEG INTO BASE OF

CABINET

SV1607

Air Baffle

SV1606

Leveling Leg and Foot

2-8 Part Number 80-1620-3

Section 2 Installation Instructions

Electrical Service

GENERAL

!

Warning

All wiring must conform to local, state and national
codes.

VOLTAGE

The maximum allowable voltage variation is ±1 0% of the
rated voltage at ice machine start-up (when the electrical
load is highest).

Warning

!

The ice machine must be grounded in accordance
with national and local electrical codes.

All electrical work, including wire routing and grounding,
must conform to local, state and national electrical
codes. The following precautions must be observed:

• The ice machine must be grounded.

• A separate fuse/circuit breaker must be pr ov ide d fo r
each ice machine.

Observe correct polarity of incoming line voltage.

Incorrect polarity can lead to erratic ice machine
operation and a safety issue. This is especially critical o n
230 volt / 50 cycle ice machines.

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).

MINIMUM CIRCUIT AMPACITY

The minimum circuit ampacity is used to help select the
wire size of the electrical supply. (Minimum circuit
ampacity is not the ice machine’s running amp load.)

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

Refer to Ice Machine Model/Serial Plate for voltage/
amperage specifications.

Important

• A qualified electrician must determine proper wire
size dependent upon location, materials used and
length of run (minimum circuit ampacity can be used
to help select the wire size).

• The maximum allowable voltage variation is +/-10 of
the rated voltage at ice machine start-up (when the
electrical load is highest).

• Check all green ground screws in the control box and
verify they are tight before starting the ice machine.

Part Number 80-1620-3 2-9

Installation Instructions Section 2

MAXIMUM BREAKER SIZE & MINIMUM CIRCUIT AMPERAGE CHART

(* indicates preliminary data)

Ice Machine

S300

S320

S420/S450

S500

S600

S850

S1000

S1200

S1400

S1600

S1800

Voltage

Phase

Cycle

115/1/60 20 12.9 20 12.1 N/A N/A
230/1/50 15 6.4 15 5.9 N/A N/A
115/1/60 15 11.3 15 10.5 N/A N/A

208-230/1/60 15 6.0 15 5.6 N/A N/A

230/1/50 15 6.0 15 5.6 N/A N/A
115/1/60 20 16.3 20 15.6 N/A N/A

208-230/1/60 15 8.2 15 8.2 N/A N/A

230/1/50 15 6.7 15 6.4 N/A N/A
115/1/60 20 13.0 20 12.3 20 14.1

208-230/1/60 15 7.3 15 6.9 N/A N/A

230/1/50 15 6.5 15 5.9 N/A N/A

208-230/1/60 15 8.3 15 7.9 15 8.9

230/1/50 15 6.7 15 6.1 15 7.1
208-230/1/60 20 11.3 20 10.3 20 10.6
208-230/3/60 15 7.8 15 6.8 15 7.8

230/1/50 20 10.5 20 9.1 20 9.7
208-230/1/60
208-230/3/60 15 9.9 15 8.9 15 9.9

230/1/50
208-230/1/60

230/1/50
208-230/1/60 30 17.5 30 16.1 30 17.1
208-230/3/60 20 13.2 20 11.6 20 12.8

230/1/50 30 15.1 30 13.7 30 14.7
208-230/1/60

230/1/50
208-230/1/60
208-230/3/60

230/1/50 40 21.9 40 20.5 40 21.5

Fuse/Circuit

Air-Cooled Water Cooled Remote

Maximum

Breaker

20 13.6 20 12.6 20 12.8

20 12.6 20 11.2 20 12.0

40 23.5 40 22.1 40 23.1
20 13.4 20 12.0 20 13.0

Minimum

Circuit Amps

Maximum

Fuse/Circuit

Breaker

Not Available at Time of Printing208-230/3/60

Not Available at Time of Printing208-230/3/60

Minimum

Circuit Amps

Maximum

Fuse/Circuit

Breaker

Minimum

Circuit Amps

2-10 Part Number 80-1620-3

Section 2 Installation Instructions

Self-Contained Electrical Wiring Connections

Warning

!

These diagrams are not intended to show proper
wire routing, wire sizing, disconnects, etc., only the
correct wire connections.

All electrical work, including wire routing and
grounding, must conform to local, state and national
electrical codes.

Though wire nuts are shown in the drawin gs, th e ice
machine field wiring connections may use either
wire nuts or screw terminals.

SELF CONTAINED ICE MACHINE
115/1/60 OR 208-230/1/60

L

1

N=115V

OR

L2=208-230V

GROUND

GROUND

SELF CONTAINED ICE MACHINE
208-230/3/60

L

1

L

2

L

3

GROUND

ICE MACHINE

SV1190

L

1

CONNECTIONS

TO SEP ARATE

FUSE/BREAKER

GROUND

L

1

L

2

L

3

SELF CONTAINED ICE MACHINE
230/1/50

L

1

L

1

SV1258

ICE MACHINE

CONNECTIONS

TO SEPARATE

FUSE/BREAKER

SV1191

N

GROUND

ICE MACHINE

CONNECTIONS

GROUND

TO SEPARATE

FUSE/BREAKER.

DISCONNECT ALL

POLES.

For United Kingdom Only

As the colors of the wires in the mains lead of the appliance may not correspond with the colored markings
identifying the terminals in your plug, proceed as follows:

• The wire which is colored green and yellow
the letter E or by the earth ground symbol or colored green or green and yellow.

• The wire colored blue

• The wire colored brown

must be connected to the terminal which is marked with the letter N or colored black.

must be connected to the terminal which is marked with the letter L or colored red.

must be connected to the terminal in the plug which is marked with

N

Part Number 80-1620-3 2-11

Installation Instructions Section 2

Remote Electrical Wiring Connections

Warning

!

These diagrams are not intended to show proper
wire routing, wire sizing, disconnects, etc., only the
correct wire connections.

All electrical work, including wire routing and
grounding, must conform to local, state and national
electrical codes.

Though wire nuts are shown in the drawin gs, th e ice
machine field wiring connections may use either
wire nuts or screw terminals.

Important

F2 wire is located in the compressor compartment
behind the control box. The wire is labeled F2 and
capped with a wire nut.

REMOTE ICE MACHINE
WITH SINGLE CIRCUIT MODEL CONDENSER
115/1/60 OR 208-230/1/60

REMOTE ICE MACHINE
WITH SINGLE CIRCUIT MODEL CONDENSER
208-230/3/60 OR 380-415/3/50

SINGLE

CIRCUIT

REMOTE

CONDENSER

ICE

MACHINE

SV1199

F

F

L

L

L

L

2

1

1

2

3

1

L

2

GROUND

GROUND

NOTE: FAN
MOTOR IS
208-230V

TO SEPARATE

FUSE/BREAKER

GROUND

L

1

L

2

L

3

SINGLE

CIRCUIT

REMOTE

CONDENSER

ICE

MACHINE

SV1255

L

1

L

2

F

2

F

1

L

1

L

2

GROUND

GROUND

NOTE:
CONDENSER FAN
MOTOR VOL TAGE
MATCHES ICE
MACHINE
VOLTAGE (115V
OR 208-230V)

N=115V OR L2=208-230V

TO SEPARATE

FUSE/BREAKER

L

GROUND

REMOTE ICE MACHINE
WITH SINGLE CIRCUIT MODEL CONDENSER
230/1/50

L

F

F

L

N

2

1

1

1

L

2

GROUND

NOTE: FAN
MOTOR IS
220-240V

TO SEPARATE

FUSE/BREAKER

(220-240).

DISCONNECT ALL

POLES.

L

N

GROUND

1

SINGLE CIRCUIT

REMOTE

CONDENSER

1

L

2

ICE

MACHINE

SV1256

2-12 Part Number 80-1620-3

Section 2 Installation Instructions

Water Supply and Drain Requirements

WATER SUPPLY

Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.

Important

If you are installing a Manitowoc Arctic Puref water
filter system, refer to the Installation Instructions
supplied with the filter system for ice making water
inlet connections.

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
recommended pressure (80 psi), obtain a water
pressure regulator from your Manitowoc distributor.

• Install a water shut-off valve for both the ice making
and condenser water lines.

• Insulate water inlet lines to prevent condensation.

Caution

!

Do not apply heat to water valve inlet fitting. This will
damage plastic valve body.

DRAIN CONNECTIONS

Follow these guidelines when installing drain lines to
prevent drain water from flowing back into the ice
machine and storage bin:

• 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 en o ug h to
accommodate drainage from all drains.

• Run separate bin and ice machine drain lines.
Insulate them to prevent condensatio n.

• Vent the bin and ice machine drain to the
atmosphere. Do not vent the condenser drain on
water-cooled models.

Cooling Tower Applications
(Water-Cooled Models)

A water cooling tower installation does not require
modification of the ice machine. The water regulator
valve for the condenser continues to control the
refrigeration discharge pressure.

It is necessary to know the amount of heat rejectio n, and
the pressure drop through the condenser and water
valves (inlet and outlet) when using a cooling tower on
an ice machine.

• Water entering the condenser must not exceed 90°F
(32.2°C).

• Water flow through the condenser m ust not exceed 5
gallons (19 liters) per minute.

• Allow for a pressure drop of 7 psi (48 kPA) between
the condenser water inlet and the outlet of the ice
machine.

• Water exiting the condenser must not exceed 110°F
(43.3°C).

Part Number 80-1620-3 2-13

Installation Instructions Section 2

WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS

Caution

!

Plumbing must conform to state and local codes.

Location Water Temperature Water Pressure Ice Machine Fitting

Ice Making
Water Inlet

Ice Making

Water Drain

Condenser
Water Inlet

Condenser

Water Drain

35°F (1.6°C) Min.

90°F (32.2°C) Max.

--- ---

40°F (4.4°C) Min.

90°F (32.2°C) Max.

--- ---

Bin Drain --- ---

Refer to “Ice Machine Dimensions” at the beginning of Section 2 for the exact locations of inlets and drains for the model you are working on.

ELECTRICAL ENTRANCE

18” (46 CM) VENT TUBE

1/2” DRAIN CONNECTION

PLASTIC FITTING ON OPPOSITE

SIDE DO NOT APPLY HEAT

20 psi (137.9 kPA) Min.

80 psi (551.5 kPA) Max.

20 psi (137.9 kPA) Min.

150 psi (1034.2 kPA) Max.

3/8" Female Pipe

Thread

1/2" Female
Pipe Thread

3/8" Female Pipe Thread

1/2" Female
Pipe Thread

3/4" Female
Pipe Thread

3/8” FPT ICE MAKING WATER INLET FITTING,

PLASTIC FITTING ON OPPOSITE SIDE DO NOT

3/8” FPT CONDENSER WATER INLET

(WATER COOLED UNITS ONLY

Tubing Size Up to Ice

Machine Fitting

3/8" (.95 cm) minimum

inside diameter

1/2" (1.27 cm) minimum

inside diameter

1/2" (1.27 cm) minimum

inside diameter

3/4" (1.91 cm) minimum

inside diameter

APPLY HEAT

1/2” FPT CONDENSER WATER DRAIN

(WATER COOLED UNITS ONLY)

1/2” (1.3 CM) MIN

DRAIN ID

AIR GAP

OPEN, TRAPPED AND

VENTED DRAIN

1/2” CPVC SOCKET AUXILLARY BASE

DO NOT TRAP DRAIN LINE,
LEAVE AIR GAP BETWEEN

DRAIN TUBE AND DRAIN

DRAIN

SV3142

Typical Water Supply Drain Installation

2-14 Part Number 80-1620-3

Section 2 Installation Instructions

Remote Condenser/Line Set Installation

Remote Single

Ice Machine

S500 JC0495

S600/S800/S1000 JC0895

S1400/S1600/

S1800

*Line Set Discharge Line Liquid Line

RT 1/2" (1.27 cm) 5/16" (.79 cm)

RL 1/2" (1.27 cm) 3/8" (.95 cm)

Air Temperature Around the Conden se r

Minimum Maximum

-20°F (-29°C) 120°F (49°C)

Circuit

Condenser

JC1395

REMOTE ICE MACHINES
REFRIGERANT CHARGE

Each remote ice machine ships from the factory with a
refrigerant charge appropriate for installation with line
sets of up to 50' (15.25 m). The serial tag on the ice
machine indicates the refrigerant charge.

Line Set*

RT-20-R404A
RT-35-R404A
RT-50-R404A
RT-20-R404A
RT-35-R404A
RT-50-R404A
RL-20-R404A
RL-35-R404A
RL-50-R404A

IMPORTANT

EPA CERTIFIED TECHNICIANS

If remote line set length is between 50' and 100' (15.25-

30.5 m), add
Refer to the Installation Instructions in Installation Use and
Care Manual for the model being worked on.

Tubing length: ______________________________
Refrigerant added to nameplate: ________________
New total refrigerant charge: ___________________

additional refrigerant to the nameplate charge.

Typical Additional Refrigerant Label

Warning

!

Potential Personal Injury Situation

The ice machine contains refrigerant charge.
Installation of the line sets must be performed by a
properly trained and EPA certified refrigeration
technician aware of the dangers of dealing with

refrigerant charged equipment.

Caution

!

Never add more than nameplate charge to the
refrigeration system for any application.

Additional refrigerant may be required for installations
using line sets between 50' and 100’ (15.25-30.5 m)
long. If additional refrigerant is required, refer to the
chart below for the correct amount to be added.

Ice Machine

S500 6 lb. (96 oz.) 1.5 lb. (24 oz.) 7.5 lb. (120 oz.)
S600 6.5 lb.(104 oz) 1.5 lb. (24 oz.) 8 lb. (128 oz.)

S850 8.5 lb. (136 oz.) 2 lb. (32 oz.) 10.5 lb. (168 oz.)
S1000 8 .5 lb. (136 oz.) 2 lb. (32 oz.) 10.5 lb. (168 oz.)
S1400 11 lb. (176 oz.) 2 lb. (32 oz.) 14 lb. (224 oz.)
S1600 Not Available at Time of Printing, Please Refer to Nameplate on Ice Machine
S1800 12.5 lb. (200 oz.) 2 lb. (32 oz.) 14.5 lb. (232 oz.)

Part Number 80-1620-3 2-15

Nameplate Charge

(Charge Shipped in Ice Machine)

Refrigerant to be Added for

50'-100' Line Sets

Maximum System Charge

(Never Exceed)

Installation Instructions Section 2

GENERAL

Condensers must be mounted horizontally with the fan
motor on top.

Remote condenser installations consist of vertical and
horizontal line sets between the ice machine and the
condenser. When co mbined, they must fit within
approved specifications. The following guidelines,
drawings and calculation methods must be followed to
verify a proper remote condenser installation.

Caution

!

The 60 month compressor warranty (including the
36 month labor replacement warranty) will not apply
if the remote ice machine is not installed according
to specifications.

This warranty also will not apply if the refrigeration
system is modified with a condenser, heat reclaim
device, or other parts or assemblies not
manufactured by Manitowoc Ice, Inc., unless
specifically approved in writing by Manitowoc Ice,
Inc.

GUIDELINES FOR ROUTING LINE SETS

First, cut a 2.5" (6.35 cm) circular hole in the wall or ro of
for tubing routing. The line set end with the 90° bend will
connect to the ice machine. The straight end will connect
to the remote condenser.

Follow these guidelines when routing the refrigerant
lines. This will help insure proper performance and
service accessibility.

1. Optional - Make the service loop in the line sets (as
shown below). This permits easy access to the ice
machine for cleaning and service. Do not use hard
rigid copper at this location.

2. Required - Do not form traps in the refrigeration lines
(except the service loop). Refrigerant oil must be
free to drain toward the ice machine or the
condenser. Route excess tubing in a supported
downward horizontal spiral (as shown below). Do
not coil tubing vertically.

3. Required - Keep outdoor refrigerant line runs as
short as possible.

SV1204

3

2

1

DOWNWARD

HORIZONTAL

SPIRAL

1

2

3

Routing Line Sets

2-16 Part Number 80-1620-3

Section 2 Installation Instructions

CALCULATING REMOTE CONDENSER
INSTALLATION DISTANCES

Line Set Length

The maximum length is 100' (30.5 m).
The ice machine compressor must have the proper oil

return. The receiver is designed to hold a char ge
sufficient to operate the ice machine in ambient
temperatures between -20°F (-29°C) and 120°F (49°C),
with line set lengths of up to 100' (30.5 m).

Line Set Rise/Drop

The maximum rise is 35' (10.7 m).
The maximum drop is 15' (4.5 m).

Caution

!

If a line set has a rise followed by a drop, another
rise cannot be made. Likewise, if a line set has a
drop followed by a rise, another drop cannot be
made.

Calculated Line Set Distance

The maximum calculated distance is 150' (45.7 m).

Make the following calculations to make sure the line set
layout is within specifications.

1. Insert the measured rise into the formula below.
Multiply by 1.7 to get the calculated rise.
(Example: A condenser located 10 feet above the
ice machine has a calculated rise of 17 feet.)

2. Insert the measured drop into the formula below.
Multiply by 6.6 to get the calculated drop.
(Example. A condenser located 10 feet below the
ice machine has a calculated drop of 66 feet.)

3. Insert the measured horizontal distance into the
formula below. No calculation is necessary.

4. Add together the calculated rise, calculated drop,
and horizont al distance to get the tot al calculated
distance. If this total exceeds 150' (45.7 m), move
the condenser to a new location and perform the
calculations again.

Line set rises, drops, horizontal ru ns (or combinations of
these) in excess of the stated maximums will exceed
compressor start-up and design limits. This will cause
poor oil return to the compressor.

Maximum Line Set Distance Formula

Step 1. Measured Rise (35' [10.7 m] Maximum) ______ x 1.7 = _______ Calculated Rise
Step 2. Measured Drop (15' [4.5 m] Maximum) ______ x 6.6 = _______ Calculated Drop
Step 3. Measured Horizontal Distance (100' [30.5 m] Maximum) _______ Horizontal Distance
Step 4. T otal Calculated Distance 150' (45.7 m) _______ Total Calculated Distance

H

R

SV1196 SV1195 SV1194

Combination of a Rise and a

Horizontal Run

H

D

Combination of a Drop and a

Horizontal Run

Combination of a Rise, a Drop

and a Horizontal Run

H

R

D

Part Number 80-1620-3 2-17

Installation Instructions Section 2

LENGTHENING OR REDUCING LINE SET LENGTHS

In most cases, by routing the line set properly,
shortening will not be necessary. When shortening or
lengthening is required, do so before connecting the line
set to the ice machine or the remote condenser. This
prevents the loss of refrigerant in the ice machine or
condenser.

The quick connect fittings on the line sets are equipped
with Schraeder valves. Use these valves to recover any
vapor charge from the line set. When lengthening or
shortening lines follow good refrigeration practices,
purge with nitrogen and insulate all tubing. Do not
change the tube sizes. Evacuate the lines and place
about 5 oz (143g) of vapor refrigerant charge in each
line.

CONNECTING A LINE SET

1. Remove the dust caps from the line set, condenser
and ice machine.

2. Ap ply re fr ige ra tion oil to the th re ad s on the quic k
disconnect couplers before connecting them to the
condenser.

3. Carefully thread the female fitting to the condenser
or ice machine by hand.

4. Tighten the couplings with a wrench until they
bottom out.

5. Turn an additional 1/4 turn to ensure proper brass­to-brass seating. Torque to the following
specifications:

REMOTE RECEIVER SERVICE VALVE

The receiver service valve is closed during shipment.
Open the valve prior to starting the ice machine.

1. Remove the top and left side panels.

2. Remove the receiver service valve cap.

3. Backseat (open) the valve.

4. Reinstall the cap and panels.

REMOVE FRONT, TOP,

AND LEFT SIDE PANEL

FOR ACCESS TO

RECEIVER VALVE

TURN

COUNTERCLOCKWISE

TO OPEN

RECEIVER SERVICE

VALVE CAP (TURN

SV1603

COUNTERCLOCKWISE

TO REMOVE)

Liquid Line Discharge Line

10-12 ft lb.

(13.5-16.2 N•m)

35-45 ft lb.

(47.5-61.0 N•m)

Backseating the Receiver Service Valve

6. Check all fittings and valve caps for leaks.

7. Make sure Schraeder cores are seated and
Schraeder caps are on and tight.

2-18 Part Number 80-1620-3

Section 2 Installation Instructions

Remote Ice Machine Usage with Non-Manitowoc Multi-Circuit Condensers

WARRANTY

The sixty (60) month compressor warranty, including
thirty six (36) month labor replacement warranty, shall
not apply when the remote ice machine is not installed
within the remote specifications. The foregoing warranty
shall not apply to any ice machine installed and/or
maintained inconsistent with the technical instructions
provided by Manitowoc Ice, Inc. Performance may vary
from Sales specifications. S-Model ARI certified
standard ratings only apply when used with a Manitowoc
remote condenser.

If the design of the condenser meets the specifications,
Manitowoc’s only
to be extended to the Manitowoc manufactured part of
the system. Since Manitowoc does not
condenser in conjunction with the ice machine,
Manitowoc will not endorse, recommend, or approve the
condenser, and will not be responsible for its
performance or reliability.

approval is for full warranty coverage

test the

Important

Manitowoc warrants only complete new and unused
remote packages. Guaranteeing the integrity of a
new ice machine under the terms of our warranty
prohibits the use of pre-existing (used) tubing or
condensers.

HEAD PRESSURE CONTROL VALVE

Any remote condenser connected to a Manitowoc S­Model Ice Machine must have a head pressure control
valve #836809-3 (available from Manitowoc Distributors)
installed on the condenser p ackage. Mani towoc will not
accept substitute “off the shelf” head pressure control
valves.

Caution

!

Do not use a fan cycling control to try to maintain
discharge pressure. Compressor failure will result.

FAN MOTOR

The condenser fan must be on during the complete ice
machine freeze cycle (do not cycle on fan cycle control).
The ice maker has a condenser fan motor circui t fo r use
with a Manitowoc condenser . It is recommended that this
circuit be used to control the condenser fan(s) on the
multi-circuit condenser to assure it is on at the proper
time. Do not exceed the rated amps for the fan motor

circuit listed on the ice machine’s serial tag.
INTERNAL CONDENSER VOLUME

The multi-circuit condenser internal volume must not be
less than or exceed that used by Manitowoc (see chart
on next page). Do not exceed internal volu me and tr y

to add charge to compensate, as compressor fa ilure
will result.

CONDENSER ∆T

∆T is the difference in temperature between the
condensing refrigerant and entering air. The ∆T should
be 15 to 20°F (-9.4 to -6.6°C) at the beginning of the
freeze cycle (peak load conditions) and drop down to 12
to 17°F (-11.1 to -8.3°C) during the last 75% of the
freeze cycle (average load conditions).

REFRIGERANT CHARGE

Remote ice machines have the serial plate refrigerant
charge (total system charge) located in the ice maker
section. (Remote condensers and line sets are supplied
with only a vapor charge.)

Caution

!

Never add more than nameplate charge to ice
machine for any application.

QUICK CONNECT FITTINGS

The ice machine and line sets come with quick connect
fittings. It is recommended that matching quick connects
(available through Manitowoc Distributors) be installed in
the multi-circuit condenser, and that a vapor “holding”
charge (5 oz.) of proper refrigerant be added to the
condenser prior to connection of the ice machine or line
set to the condenser.

Part Number 80-1620-3 2-19

Installation Instructions Section 2

NON-MANITOWOC MULTI-CIRCUIT CONDENSER SIZING CHART

Internal

Ice

Machine

Model

Refrigerant Heat of Rejection

Type Charge

Average

Btu/hr

Btu/hr

Peak

Condenser

Vo lume (cu ft)

Design

Pressure

Min Max Discharge Liquid

500 psig

(3447 kpa)

S500 R-404A

6 lbs. 7,000 9,600 0.020 0.035

(34.47 bar)

safe working

pressure

S600 R404A

6.5 lbs. 9,000 13,900 0.045 0.060

S850 R-404A 8.5 lbs. 12,000 18,000 0.045 0.060 2,500 psig
S1000 R-404A 8.5 lbs. 16,000 22,000 0.045 0.060
S1400 R-404A 11 lbs. 19,000 28,000 0.085 0.105
S1600 R-404A Not Available at Time of Printing

S1800 R-404A 12.5 lbs. 24,000 36,000

SINGLE CIRCUIT REMOTE
CONDENSER

DISCHARGE
LINE

0.085 0.105

(17237 kpa)

(172.37 bar)

burst

pressure

Quick Connect Stubs-

Male Ends

coupling

P/N

83-6035-3

mounting

flange P/N

83-6006-3

ELECTRICAL
DISCONNECT

coupling

P/N

83-6034-3

mounting
flange P/N
83-6005-3

Head

Pressure

Control

Valve

Manitowoc

P/N

83-6809-3

no

substitutes

ELECTRICAL
DISCONNECT

ELECTRICAL
SUPPLY

LIQUID LINE

ICE MACHINE

36.00"
(91.44 cm)
DROP

LIQUID
REFRIGERANT
LINE

DISCHARGE
REFRIGERANT
LINE

BIN

Typical Single Circuit Remote Condenser Installation

SV1615

TO CIRCUIT
BREAKER
PANEL

2-20 Part Number 80-1620-3

Section 2 Installation Instructions

Installation Check List

F Is the Ice Machine level?

F Has all of the internal packing been

removed?

F Have all of the electrical and water

connections been made?

F Has the supply voltage been tested and

checked against the rating on the nameplate?

F Is there proper clearance around the ice

machine for air circulation?

F Has the ice machine been installed where

ambient temperatures will remain in the
range of 35° - 110°F (1.6° - 43.3°C)?

F Has the ice machine been installed where th e

incoming water temperature will remain in the
range of 35° - 90°F (1.6° - 32.2°C)?

F Are the ice machine and bin drains vented?

F Are all electrical leads free from contact with

refrigeration lines and moving equipment?

F Has the owner/operator been instructed

regarding maintenance and the us e of
Manitowoc Cleaner and Sanitizer?

F Has the owner/operator completed the

warranty registration card?

F Has the ice machine and bin been sanitized?

F Is the toggle switch set to ice? (The toggle

switch is located directly behind the front
panel).

F Is the ice thickness control set correctly?

(Refer to Operational Checks to check/set
the correct ice bridge thickness).

F Is there a separate drain for the water-cooled

condenser?

F Is there a separate drain for the bin?

Additional Checks for Remote Models

F Has the receiver service valve been

opened?

F Does the remote condenser fan operate

properly after start-up?

F Has the remote condenser been located

where ambient temperatures will remain in
the range of -20° - 120°F ( -29 - 49°C).

F Is the line set routed properly?

F Are both refrigeration lines to remote

condenser run so they do not lay in water
and are properly insulated?

Part Number 80-1620-3 2-21

Installation Instructions Section 2

Before Starting the Ice Machine

All Manitowoc ice machines are factory-operated and
adjusted before shipment. Normally, new installations do
not require any adjustment.

To ensure proper operation, follow the Operational
Checks in Section 3 of this manual. Starting the ice
machine and completing the Operational Checks are the
responsibilities of the owner/operator.

Adjustments and maintenance procedures outlined in
this manual are not covered by the warranty.

Warning

!

Potential Personal Injury Situation

Do not operate equipment that has been misused.
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.

AuCS® Automatic Cleaning System

This optional accessory monitors ice making cycles and
initiates cleaning procedures automatically. The AuCS®
accessory can be set to automatically clean or sanitize
the ice machine every 2, 4 or 12 weeks. Refer to the
AuCS® Installation, Use and Care Manual for details.

2-22 Part Number 80-1620-3

Section 3 Ice Machine Operation

Section 3

Ice Machine Operation

Component Identification

Water Curtain

sv3149

Ice Thickness Probe

Water Distribution Tube

Toggle Switch

Dump Valve

Check Valve

Bin Switch

Water Level Probe

Water Pump

Water Inlet Location

Water Inlet Valve

(Located in Refrigeration Compartment)

sv3150

Part Number 80-1620-3 3-1

Ice Machine Operation Section 3

Sequence Of Operation

NOTE: The toggle switch must be in the ice position and
the water curtain must be in place on the evaporator
before the ice machine will start.

INITIAL START-UP OR START-UP AFTER
AUTOMATIC SHUT-OFF

1. Water Purge

Before the compressor starts, the water pump and water
dump solenoid are energized for 45 seconds, to
completely purge the ice machine of old water. This
feature ensures that the ice making cycle starts with
fresh water.

The harvest valve(s) is also energized during water
purge, although it stays on for an additional 5 seconds
(50 seconds total on time) during the initial refrigeration
system start-up.

When Used - The air compressor energizes for the last
10 seconds of the cycle.

2. Refrigeration System Start-Up

The compressor starts after the 45 second water purge,
and it remains on throughout the entire Freeze and
Harvest Sequences. The water fill valve is energized at
the same time as the compressor. The harvest valve(s)
remains on for 5 seconds during initial compressor start­up and then shuts off.

At the same time the compressor starts, the condenser
fan motor (air-cooled models) is supplied with power
throughout the entire Freeze and Harvest Sequences.
The fan motor is wired through a fan cycle pressure
control, therefore it may cycle on and off. (The
compressor and condenser fan motor are wired through
the contactor. As a result, anytime the contactor coil is
energized, the compressor and fan motor are supplied
with power.)

FREEZE SEQUENCE

3. Prechill

The compressor is on for 30 seconds (60 seconds initial
cycle) prior to water flow, to prechill the evaporator. The
water fill valve remains on until the water level probe is
satisfied.

4. Freeze

The water pump restarts after the prechill. An even flow
of water is directed across the evaporator and into each
cube cell, where it freezes. The water fill valve will cycle
on and then off one more time to refill the water trough.

When sufficient ice has formed, the water flow (not the
ice) contacts the ice thickness probe. After
approximately 10 seconds of continual water contact,
the harvest sequence is initiated. The ice machine
cannot initiate a harvest sequence until a 6 minute
freeze lock has been surpassed.

NOTE: Freeze lock is bypassed after moving the toggle
switch from OFF to ICE position for the first cycle only.

3-2 Part Number 80-1620-3

Section 3 Ice Machine Operation

HARVEST SEQUENCE

5. Water Purge

The harvest valve(s) opens at the beginning of the water
purge to divert hot refrigerant gas into the evaporator.

The water pump continues to run, and the water dump
valve energizes for 45 seconds to purge the water in the
sump trough. The water fill valve energizes (turns on)
and de-energizes (turns off) strictly by time. The water fill
valve energizes for the last 15 seconds of the 45-second
water purge.

After the 45 second water purge, the water fill valve,
water pump and dump valve de-energize. (Refer to
“Water Purge Adjustment” for details.)

6. Harvest

The harvest valve(s) remains open and the refrigerant
gas warms the evaporator causing the cubes to slide, as
a sheet, off the evaporator and into the storage bin. The
sliding sheet of cubes swings the water curtain out,
opening the bin switch.

The momentary opening and re-clo sing of th e bin switch
terminates the harvest sequence and retu rn s th e ice
machine to the freeze sequence (Step 3 - 4.)

When Used - The air compressor energizes after 35
seconds and remains energized throughout the entire
harvest cycle. The air compressor will automatically
energize for 60 seconds when the harvest cycle time
exceeded 75 seconds in the previous cycle.

AUTOMATIC SHUT-OFF

7. Automatic Shut-Off

When the storage bin is full at the end of a harvest
sequence, the sheet of cubes fails to clear the water
curtain and will hold it open. After the water curtain is
held open for 30 seconds, the ice machine shuts of f. The
ice machine remains off for 3 minutes before it can
automatically restart.

The ice machine remains off until enough ice has been
removed from the storage bin to allow the ice to fall clear
of the water curtain. As the water curtain swings back to
the operating position, the bin switch re-closes and the
ice machine restarts (step s 1 - 2), pr ovide d the 3 mi nute
delay period is complete.

SAFETY TIMERS

The control board has the following non-adjustable
safety timers:

• The ice machine is locked into the freeze cycle for 6
minutes before a harvest cycle can be initiated.
Freeze lock is bypassed after moving the toggle
switch from OFF to ICE position for the first cycle
only.

• The maximum freeze time is 60 minutes at which
time the control board automatically initiates a
harvest sequence (steps 5 & 6).

• The maximum harvest time is 3.5 minutes at which
time the control board automatically initiates a freeze
sequence (steps 3 & 4).

WARM WATER RINSE CYCLE

Closing the back of the evaporator allows ice to build up
on the rear of the evaporator and the plastic evaporator
frame parts. After 200 freeze/harvest cycles have been
complete the control board will initiate a warm water
rinse.

After the 200th harvest cycle ends:

• The Clean and Harvest LED’s energize to indicate
the ice machine is in a warm water rinse.

• The compressor and harvest valve remain
energized.

• The water pump energizes.

• The water inlet valve energizes until water contacts
the water level probe.

• The compressor and harvest valve warm the water
for 5 minutes, then de-energize.

• The water pump remains energized for an additional
5 minutes (10 minute total on time) then de­energizes.

NOTE:

moving the toggle switch to the OFF position, then back to ICE.

The warm water rinse cycle can be terminated by

Part Number 80-1620-3 3-3

Ice Machine Operation Section 3

Operational Checks

GENERAL

Manitowoc ice machines are factory-operated and
adjusted before shipment. Normally, new installations do
not require any adjustment.

To ensure proper operation, always follow the
Operational Checks:

• when starting the ice machine for the first time

• after a prolonged out of service period

• after cleaning and sanitizing
NOTE: Routine adjustments and maintenanc e

procedures are not covered by the warranty.

WATER LEVEL

The water level sensor is set to maintain the proper
water level above the water pump housing. The water
level is not adjustable. If the water level is incorrect,
check the water level probe for damage (probe bent,
etc.). Clean the water level probe with ice machine
cleaner, rinse thoroughly and re-check operation. Re pair
or replace the probe as necessary.

ICE THICKNESS CHECK

The ice thickness probe is factory-set to maintain the ice
bridge thickness at 1/8" (.32 cm).

NOTE: Make sure the water curtain is in place when
performing this check. It prevents water from splashing
out of the water trough.

1. Inspect the bridge connecting the cubes. It should
be about 1/8" (.32 cm) thick.

2. If adjustment is necessary, turn the ice thickness
probe adjustment screw clockwise to increase
bridge thickness, counterclockwise to decrease
bridge thickness. Set at 1/4” gap between ice
machine and evaporator as starting point, then
adjust to achieve a 1/8” bridge thickness.

NOTE: Turning the adjustment 1/3 of a turn will change
the ice thickness about 1/16" (1.5 mm).

ADJUSTING SCREW

Water Level Probe Location

1/8” ICE BRIDGE THICKNESS

SV3132

Ice Thickness Check

3. Make sure the ice thickness probe wire and the
bracket do not restrict movement of the probe.

3-4 Part Number 80-1620-3

Section 3 Ice Machine Operation

HARVEST SEQUENCE WATER PURGE

The harvest sequence water purge adjustment may be
used when the ice machine is hooked up to special
water systems, such as a de-ionized water treatment
system.

Warning

!

Disconnect electric power to the ice machine at the
electrical disconnect before proceeding.

Important

The harvest sequence water purg e is factory-set at
45 seconds. A shorter purge setting (with standard
water supplies such as city water) is not
recommended. This can increase water system
cleaning and sanitizing requirements.

• The harvest sequence water purge is factory set for
45 seconds. Repositioning the jumper will set the
harvest water purge to 0 seconds. This setting does
not affect the SeCs or AuCs (cleaning) sequences.

• During the harvest sequence water purge, the water
fill valve energizes and de-energizes by time. The
water purge must be at the factory setting of 45
seconds for the water fill valve to energize during the
last 15 seconds of the water purge. If it is set to less
than 45 seconds, the water fill valve will not energize
during the water purge.

45 second

setting

0 second

setting

SV3139
SV3140

Water Purge Adjustment

For your safety and to eliminate errors, we recommend
that a qualified service technician make the harvest
water purge adjustment.

Part Number 80-1620-3 3-5

Ice Machine Operation Section 3

THIS PAGE INTENTIONALLY LEFT BLANK

3-6 Part Number 80-1620-3

Section 4 Maintenance

Section 4

Maintenance

General

You are responsible for maintaining the ice machine in
accordance with the instructions in this manual.
Maintenance procedures are not covered by the
warranty.

!

Warning

If you do not understand the procedures or the
safety precautions that must be followed, call your
local Manitowoc service representative to perform
the maintenance procedures for you.

We recommend that you perform the following
maintenance procedures a minimum of once every six
months to ensure reliable, trouble-free operation and
maximum ice production.

Ice Machine Inspection

Warning

!

Disconnect electric power to the ice machine and
the remote condensing unit at the electric service
switch before cleaning the condenser.

Check all water fittings and lines for leaks. Also, make
sure the refrigeration tubing is not rubbing or vibrating
against other tubing, panels, etc.

Do not put anything (boxes, etc.) on the sides or back of
the ice machine. There must be adequate airflow
through and around the ice machine to maximize ice
production and ensure long component life.

Exterior Cleaning

Clean the area around the ice machine as often as
necessary to maintain cleanliness and efficient
operation. Use cleaners designed for use with stainless
steel products.

Sponge any dust and dirt off the outside of the ice
machine with mild soap and water. Wipe dry with a
clean, soft cloth.

Heavy stains should be removed with stainless steel
wool. Never use plain steel wool or abrasive pads. They
will scratch the panels.

Cleaning the Condenser

GENERAL

!

Warning

Disconnect electric power to the ice machine head
section and the remote condensing unit at the
electric service switches before cleaning the
condenser.

A dirty condenser restricts airflow, resulting in
excessively high operating temperatures. This reduces
ice production and shortens component life. Clean the
condenser at least every six months. Follow the steps
below.

!

Warning

The condenser fins are sharp. Use care when
cleaning them.

1. The washable aluminum filter on self-contained ice
machines is designed to catch dust dirt lint and
grease. Clean the filter with a mild soap and water.

2. Clean the outside of the condenser with a soft brush
or a vacuum with a brush attachment. Be careful not
to bend the condenser fins.

3. Shine a flashlight through the condenser to check
for dirt between the fins. If dirt remains:

A. Blow compressed air through the condenser fins

from the inside. Be careful not to bend the fan
blades.

B. Use a commercial condenser coil cleaner.

Follow the directions and cautions supplied with
the cleaner.

Continued on Next Page...

Part Number 80-1620-3 4-1

Maintenance Section 4

4. Straighten any bent condenser fins with a fin comb.

“COMB” DOWN

ONLY

CONDENSER

FIN

COMBS

SV1515

Straighten Bent Condenser Fins

5. Carefully wipe off the fan blades and motor with a
soft cloth. Do not bend the fan blades. If the fan
blades are excessively dirty, wash with warm, soapy
water and rinse thoroughly.

Caution

!

If you are cleaning the condenser fan blades with
water, cover the fan motor to prevent water damage
and disconnect electrical power.

Water-Cooled Condenser
and Water Regulating Valve

Symptoms of restrictions in the condenser water circu it
include:

• Low ice production

• High water consumption

• High operating temperatures

• High operating pressur e s
If the ice machine is experiencing any of these symptoms,

the water-cooled condenser and water regulating valve
may require cleaning due to scale build-up.

Because the cleaning procedures require special pump s
and cleaning solutions, qualified maintenance or service
personnel must perform them.

AlphaSan

The goal of AlphaSan is to keep the plastic surfaces of
an ice machine cleaner, by reducing or delaying the
formation of bio-film. The active ingredient in
AlphaSan
(Ag+). AlphaSan
exchange mechanism. When AlphaSan
compounded directly into a plastic part, a controlled
release of silver ions from the surface is regulated to
maintain an effective concentration at or near the
surface of the plastic ice machine part. AlphaSan’s
unique ability to effectively control the release of silver
not only protects against undesired discoloration of the
plastic, but also will last the life of the plastic part.
Although AlphaSan
does not eliminate the need for periodic cleaning and
maintenance. AlphaSan
taste of the ice or beverage.





is the element silver in the form of silver ions



slowly releases silver ions via an ion



helps prevent bio-film build up it



has no adverse effect on the



is



4-2 Part Number 80-1620-3

Section 4 Maintenance

Guardianf

Slime is a leading cause of ice machine breakdowns and
biological growth is a health concern. The Guardianf
system releases chlorine dioxide on a controlled basis to
inhibit the growth of bacteria and fungi that form slime
and cause malodors in the food zone of ice machines.

The Guardianf will not control mineral or other water
borne buildup. Your water quality will determine the
length of time before mineral buildup af fects ice machin e
performance. Mineral buildup must be removed as of ten
as necessary to ensure trouble-free operation of the ice
machine.

The Guardianf sachet holder is included with the sachet
packets. Refer to installation/replacement procedure to
install/change sachet holder/ packet.

Inside Left
Front Door

SACHET INSTALLATION/REPLACEMENT
PROCEDURE

1. Loosen the left screw and open the left front door.
The right front panel does not need to be removed.

Loosen

Screw

Guardian

Guardianf Location

GUARDIANf SACHET REPLACEMENT FREQUENCY

Sachet packet(s) require replacement every thirty (30)
days or whenever they come in direct contact with water .
Refer to chart below for requirements.

Ice Machine Sachet Use

S300/S320/S420/S450/S500/S600 1

S850/S1000/S1200/S1400/S1600/S1800 1 or 2*

*Although one sachet is recommended, extreme conditions may
necessitate using two sachet packets.

Guardianf sachet packets are available through your
local Manitowoc ice machine dealer.

Screw Location

2. Inside the front panel there are two thumbscrew
holes covered by stickers, pierce the sticker with a
screwdriver.

3. Attach the sachet holder to the front panel by
inserting the thumbscrews through the holes in the
sachet holder and tighten the thumbscrews.

4. Remove the new sachet packet from foil package
and install into holder. Removing the foil pa ckage
allows moisture in the air to activate the sachet
contents.

5. Close the left front door and tighten the screw.

6. Discard the used sachet packet in the trash.

CLEAN UP PROCEDURE FOR DAMAGED SACHET
PACKET

1. Remove all ice from bin/dispenser and discard.

2. Initiate a cleaning and sanitizing sequence on the
ice machine (see next pages).

3. Clean the bin/dispenser. Flush the drain thoroughly
to prevent future drain blockage.

4. Sanitize the bin/dispenser.

5. Install a replacement sachet packet and reinstall all
panels.

Part Number 80-1620-3 4-3

Maintenance Section 4

Interior Cleaning and Sanitizing

Caution

GENERAL

Clean and sanitize the ice machine every six months for
efficient operation. If the ice machine requires more
frequent cleaning and sanitizing, consult a qualified
service company to test the water quality and
recommend appropriate water treatment. An extremely
dirty ice machine must be taken apart for cleaning and
sanitizing.

Caution

!

Use only Manitowoc approved Ice Machine Cleaner
(part number 94-0546-3) and Sanitizer (p ar t number
94-0565-3). It is a violation of Federal law to use
these solutions in a manner inconsistent with their
labeling. Read and understand all labels printed on
bottles before use.

CLEANING PROCEDURE

Never use anything to force ice from the evaporator.
Damage may result.

Step 3 To start cleaning, place the toggle switch in the
CLEAN position. The water will flow through the water
dump valve and down the drain. The Clean light will turn
on to indicate the ice machine is in the Cleaning mode.

Step 4 Wait about two minutes or until water starts to
flow over the evaporator.

Step 5 Add the proper amount of Manitowoc Ice
Machine Cleaner to the water trough by pouring
between water curtain and evaporator.

Model Amount of Cleaner

S300/S320/S420 3 ounces (88 ml)

S450/S500/S600/S850/S1000/S1200 5 ounces (148 ml)

S1400/S1600/S1800 9 ounces (266 ml)

!

Caution

!

Do not mix Cleaner and Sanitizer solutions together.
It is a violation of Federal law to use these solutions
in a manner inconsistent with their labeling.

Warning

!

Wear rubber gloves and safety goggles (and/or face
shield) when handling ice machine Cleaner or
Sanitizer.

Ice machine cleaner is used to remove lime scale or
other mineral deposits. It is not used to remove algae or
slime. Refer to the section on Sanitizing for removal of
algae and slime.

Step 1 Remove top cover. This will allow easiest
access for pouring cleaner.

Step 2 Set the toggle switch to the OFF position after
ice falls from the evaporator at the end of a Harvest
cycle. Or, set the switch to the OFF position and allow
the ice to melt off the evaporator.

Step 6 The ice machine will automatically time out a
ten minute cleaning cycle, followed by six rinse cycles,
and stop. The Clean light will turn off to indicate the
Cleaning cycle is completed. This entire cycle lasts
approximately 30 minutes.

Step 7 When the cleaning process stops, move the
toggle switch to OFF position. Refer to “Sanitizing
Procedure” on the next page.

Step 8

A. The ice machine may be set to start and finish a

self-cleaning procedure then automatically start
ice making again.

B. You must wait about one minute into the

cleaning cycle (until water starts to flow over the
evaporator) then move the switch from CLEAN
to ICE position.

C. When the self-cleaning cycle is completed, an

ice making sequence will start automatically.

Important

After the toggle switch is moved to the ICE position,
opening the curtain switch will interrupt the cleaning
sequence. The sequence will resume from the point
of interruption when the curtain switch closes.

4-4 Part Number 80-1620-3

Section 4 Maintenance

SANITIZING PROCEDURE

Use sanitizer to remove algae or slime. Do not use it to
remove lime scale or other mineral deposits.

Step 1 Set the toggle switch to the OFF position after
ice falls from the evaporator at the end of a Harvest
cycle. Or, set the switch to the OFF position and allow
the ice to melt off the evaporator.

Caution

!

Never use anything to force ice from the evaporator.
Damage may result.

Warning

!

Disconnect electric power to the ice machine (and
dispenser if applicable) at the electric switch box
before proceeding.

Step 2 Refer to Removal of Parts For Cleaning/
Sanitizing and remove ice machine parts.

Step 3 Mix a solution of water and sanitizer.

Solution Type Water Mixed With

Sanitizer 4 gal. (15 l) 3 oz (90 ml) sanitizer

Step 4 Use the sanitizing solution and a sponge or
cloth to sanitize (wipe) all parts and interior surfaces of
the ice machine. Sanitize the following areas:

A. Side walls

B. Base (area above water trough)
C. Evaporator plastic parts
D. Bin or dispenser

Step 5 Rinse all sanitized areas with clear water.
Step 6 Install the removed parts, restore power and

place toggle switch in the clean position. The water will
flow through the water dump valve and down the drain.
The Clean light will turn on to indicate the ice machine is
in the Cleaning mode.

Step 7 Wait about two minutes or until water starts to
flow over the evaporator.

Step 8 Add the proper amount of Manitowoc Ice
Machine Sanitizer to the water trough by pouring
between water curtain and evaporator.

Model Amount of Sanitizer

S300/S320/S420 3 ounces (88 ml)

S450/S500/S600/S850/

S1000/S1200

S1400/S1600/S1800 9 ounces (266 ml)

5 ounces (148 ml)

Step 9 The ice machine will automatically time out a
ten minute sanitizing cycle, followed by six rinse cycles,
and stop. The Clean light will turn off to indicate the
Cleaning cycle is completed. This entire cycle lasts
approximately 30 minutes.

When the sanitizing process stops, move the toggle
switch to ICE position.

Part Number 80-1620-3 4-5

Maintenance Section 4

REMOVAL OF PARTS FOR CLEANING/SANITIZING

1. Turn off the electrical and water supply to the ice
machine (and dispenser when applicable).

Warning

!

Disconnect electric power to the ice machine (and
dispenser if applicable) at the electric switch box
before proceeding.

2. Remove all ice from the bin.

3. Remove the water curtain and the components you
want to clean or sanitize. See the following pages for
removal procedures for these parts.

!

Warning

Wear rubber gloves and safety goggles (and/or face
shield) when handling Ice Machine Cleaner or
Sanitizer.

4. Soak the removed part(s) in a properly mixed
solution.

Solution Type Water Mixed With

Cleaner 1 gal. (4 l) 16 oz (500 ml) cleaner

Sanitizer 4 gal. (15 l) 3 oz (90 ml) sanitizer

5. Use a soft-bristle brush or sponge (NOT a wire
brush) to carefully clean the parts.

Caution

!

Do not mix Cleaner and Sanitizer solutions together.
It is a violation of Federal law to use these solutions
in a manner inconsistent with their labeling.

Caution

!

Do not immerse the water pump motor in the
cleaning or sanitizing solution.

6. Use the sanitizing solution and a sponge or cloth to
sanitize (wipe) the interior of the ice machine and
the entire inside of the bin/dispenser.

7. Thoroughly rinse all of the parts and surfaces with
clear water.

8. Install the removed parts.

NOTE: Incomplete rinsing of the ice thickness probe or
water level probe may leave a residue. This could cause
the ice machine to malfunction. For best result s, brush or
wipe the probes off while rinsing it. Thoroughly dry the
probes before installing them.

9. Turn on the water and electrical supply.

4-6 Part Number 80-1620-3

Section 4 Maintenance

1. Water Curtain

A. Gently flex the curtain in the center and remove

it from the right side.

B. Slide the left pin out.

STEP 2

STEP 1

Water Curtain Removal

SV3153

2. Ice Thickness Probe

A. Compress the hinge pin on the top of the ice

thickness probe.

COMPRESS
HINGE PIN TO
REMOVE

Ice Thickness Probe Removal

SV3135

B. Pivot the ice thickness probe to disengage one

pin then the other. The ice thickness probe can
be cleaned at this point without complete
removal. Follow Step C for complete removal.

!

Warning

Disconnect the electric power to the ice machine at
the electric service switch box.

C. Disconnect the ice thickness control wiring from

the control board.

Part Number 80-1620-3 4-7

Maintenance Section 4

3. Water Distribution Tube

!

Warning

Removing the distribution tube while the water
pump is running will allow water to spray from ice
machine. Disconnect the electrical power to the ice
machine and dispenser at the electric service switch
box and turn off the water supply.

NOTE: Distribution tube thumbscrews are retained by o­rings to prevent loss. Loosen thumbscrews but do not
pull thumbscrews out of distribution tube .

A

B

4. Water Trough

A. Depress tabs on right and left side of the water

trough.

B. Allow front of water trough to drop as you pull

forward to disengage the rear pins.

DEPRESS TABS

Water Distribution Tube Removal

A. Remove outer half of distribution tube by

loosening the four (4) thumbscrews (o-rings
retain thumbscrews to distribution tube).

B. Pull inner half of water distribution tube forward

to release slip joint from water pump tubing
connection.

4-8 Part Number 80-1620-3

Section 4 Maintenance

Water Level Probe

1. Remove the water trough.

Warning

!

Disconnect the electrical power to the ice machine
at the electrical disconnect before proceeding.

2. T he wate r lev el pr ob e no r ma lly does not re qu ir e
removal for cleaning. The probe can be wiped and
cleaned in place or proceed to step 3.

3. Pull the water level probe straight down to
disengage.

4. Lower the water level probe until the wiring
connector is visible. Disconnect the wire lead from
the water level probe.

5. Remove the water level probe from the ice machine.

Water Pump

Warning

!

Disconnect the electric power to the ice machine at
the electric service switch box and turn off the water
supply before proceeding.

1. Empty the water trough.
A. Move the toggle switch from OFF to ICE.
B. Wait 45 seconds.

C. Place toggle switch in OFF position.

WATER

PUMP

WATER

PUMP BASE

SV3091

Water Pump Removal

WATER LEVEL PROBE

SV3141

2. Remove the water trough.

3. The water pump normally does not require removal

for cleaning. The water pump base can be wipe d
and cleaned in place or proceed to step 4.

4. Grasp pump and pull straight down on pump

assembly until water pump disengages and
electrical connector is visible.

5. Disconnect the electrical connector.

6. Remove the water pump assembly from ice

machine.

7. Do not soak the water pump in cleaner or sanitizer.

Wipe the pump and ice machine base clean.

Part Number 80-1620-3 4-9

Maintenance Section 4

Wat er Dump Va lve

The water dump valve normally does not require
removal for cleaning. To determine if removal is
necessary:

1. Locate the water dump valve.

2. Set the toggle switch to ICE.

3. While the ice machine is in the freeze mode, check
the dump valve’s clear plastic outlet drain hose for
leakage.

A. If the dump valve is leaking, remove,

disassemble and clean it.

B. If the dump valve is not leaking, do not remove

it. Instead, follow the “Ice Machine Cleaning
Procedure”.

Follow the procedure below to remove the dump valve.

!

Warning

Disconnect the electric power to the ice machine at
the electric service switch box and turn off the water
supply before proceeding.

The plunger and the inside of the enclosing tube
must be completely dry before assembly.

NOTE: During cleaning, do not stretch, damage or
remove the spring from the plunger . If it is removed, slide
the spring’s flared end into the plunger’s slotted top
opening until the spring contact s the pl unger spr ing sto p.

5. Remove the valve body.

6. Remove the tubing from the dump valve by twisting
the clamps off.

7. Remove the two screws securing the dump valve
and the mounting bracket.

CAP

COIL

Important

PLUNGER
SPRING STOP

SPRING

1. If so equipped, remove the water dump valve shield
from its mounting bracket.

2. Lift and slide the coil retainer cap from the top of the
coil.

3. Note the position of the coil assembly on the valve
for assembly later. Leaving the wires attached, lift
the coil assembly off the valve body and the
enclosing tube.

4. Press down on the plastic nut on the enclosing tube
and rotate it 1/4 turn. Remove the enclosing tube,
plunger, and plastic gasket from the valve body.

NOTE: At this point, the water dump valve can easily be
cleaned. If complete removal is desired, continue with
step 5.

ENCLOSING

TUBE

Dump Valve Disassembly

PLUNGER

DIAPHRAM

VALVE BODY

4-10 Part Number 80-1620-3

Section 4 Maintenance

Evaporator Tray Removal

1. Remove the water trough.

2. Remove thumbscrew on left side of tray.

3. Allow left side of tray to drop as you pull the tray to
the left side. Continue until the outlet tube
disengages from the right side.

Drain Line Check Valve

The drain line check valve normally does not require
removal for cleaning. Water loss from the sump trough
will indicate removal and cleaning are required.

sv3154

1. Remove check valve and tube assembly.
A. Tip assembly to right until tubing disengages.
B. Lift up on assembly to remove.

2. Remove insulation from check valve assembly.

3. Remove vinyl tubing from top of check valve.

4. Soak in cleaner solution 10 minutes, and then flush

with water to remove debris.

Part Number 80-1620-3 4-11

Maintenance Section 4

Water Inlet Valve

The water inlet valve normally does not require removal
for cleaning. Refer to Section 5 for a list of causes for
“No Water Entering Water Trough” or “Water Overflows
Water Trough.

1. When the ice machine is off, the water inlet valve
must completely stop water flow into the machine.

2. When the ice machine is on, the water inlet valve
must allow the proper water flow through it. Set the
toggle switch to ON. Watch for water flow into the ice
machine. If the water flow is slow or only trickles into
the ice machine, refer to Section 5.

Follow the procedure below to remove the water inlet
valve.

!

Warning

Disconnect the electric power to the ice machine
and dispenser at the electric service switch box and
turn off the water supply before proceeding.

1. Remove the 1/4” hex head screws.

2. Remove, clean, and install the filter screen.

Removing the Front Panels

NOTE: The front panels do not normally have to be
removed. If needed perform the following procedure.

1. Loosen screws. Do not remove they are retained by
o-rings to prevent loss.

2. 30 Inch and 48 Inch Models Only: To remove right
front door lift up and remove (22 inch machines have
a single door, proceed to step 3).

5

3

FILTER
ACCESS
SCREWS

WATER
INLET
VALVE

SV1622

2

Door Removal

3. Open left front door to 45 degrees.

4. Support with left hand, depress top pin, tilt top of
door forward and lift out of bottom pin to remove.

4-12 Part Number 80-1620-3

Section 4 Maintenance

Removal from Service/Winterization

GENERAL

Special precautions must be taken if the ice machine is
to be removed from service for an extended period of
time or exposed to ambient temperatures of 32°F (0°C)
or below.

Caution

!

If water is allowed to remain in the ice machine in
freezing temperatures, severe damage to some
components could result. Damage of this nature is
not covered by the warranty.

Follow the applicable procedure below.

SELF-CONTAINED AIR-COOLED ICE MACHINES

1. Disconnect the electric power at the circuit breaker
or the electric service switch.

2. Turn off the water supply.

3. Remove the water from the water trough.

4. Disconnect and drain the incoming ice-making water
line at the rear of the ice machine.

WATER-COOLED ICE MACHINES

1. Perform steps 1-6 under “Self-Contained Air-Cooled
Ice Machines.”

2. Disconnect the incoming water and drain lines from
the water-cooled condenser.

3. Insert a large screwdriver between the bottom spring
coils of the water regulating valve. Pry upward to
open the valve.

5. Blow compressed air in both the incoming water and
the drain openings in the rear of the ice machine
until no more water comes out of the inlet water lines
or the drain.

6. Make sure water is not trapped in any of the water
lines, drain lines, distribution tubes, etc.

SV1624

Pry Open the Water Regulating Valve

4. Hold the valve open and blow compressed air
through the condenser until no water remains.

REMOTE ICE MACHINES

1. Move the ICE/OFF/CLEAN switch to OFF.

2. “Frontseat” (shut off) the receiver service valves.
Hang a tag on the switch as a reminder to open the
valves before restarting.

3. Perform steps 1-6 under “Self-Contained Air-Cooled
Ice Machines.”



AUCS

Refer to the AuCS
of the AuCS

Accessory



Accessory.



Accessory manual for winterization

Part Number 80-1620-3 4-13

Maintenance Section 4

THIS PAGE INTENTIONALLY LEFT BLANK

4-14 Part Number 80-1620-3

Section 5 Before Calling For Service

Section 5

Before Calling For Service

Checklist

If a problem arises during operation of your ice machine, follow the checklist below before calling service. Routine
adjustments and maintenance procedures are not covered by the warranty.

Problem Possible Cause To Correct

Ice machine does not operate. No electrical power to the ice machine

and/or condensing unit.
High pressure cutout tripping. Clean condenser coil. (See Section 4)
ICE/OFF/CLEAN toggle switch set

improperly.
Water curtain stuck open. Water curtain must be installed and

Remote receiver service valve and/or
Liquid/suction line shut off valves are
closed.

Ice machine stops, and can be restarted
by moving the toggle switch to OFF and
back to ICE.

Ice machine does not release ice or is
slow to harvest.

Ice machine does not cycle into harvest
mode.

Ice quality is poor (soft or not clear). Poor incoming water quality. Contact a qualified service company to

Safety limit feature stopping the ice
machine.

Ice machine is dirty. Clean and sanitize the ice machine.

Ice machine is not level. Level the ice machine. (See Section 2)
Low air temperature around ice machine

head section.
Fan cycling control does not de-energize

condenser fan motor.
The six-minute freeze time lock-in has

not expired yet.
Ice thickness probe is dirty. Clean and sanitize the ice machine.

Ice thickness probe is disconnected. Connect the wire.
Ice thickness probe is out of adjustment. Adjust the ice thickness probe.

Uneven ice fill (thin at the top of
evaporator).

Water filtration is poor. Replace the filter.
Ice machine is dirty. Clean and sanitize the ice machine.

Water dump valve is not working. Disassemble and clean the water dump

Water softener is working improperly (if
applicable).

Replace the fuse/reset the breaker/turn
on the main switch.

Move the toggle switch to the ICE
position.

swinging freely. (See Section 4)
Open the valve(s). (See Section 2)

Refer to “Safety Limit Feature” on the
next page.

(See Section 4)

Air temperature must be at least 35°F
(1.6°C).

Verify pressure is below cut-out setpoint,
replace fan cycling control.

Wait for the freeze lock-in to expire.

(See Section 4)

(See Section 3)
Verify sufficient water level in sump

trough. Contact a qualified service
company to check refrigeration system.

test the quality of the incoming water and
make appropriate filter
recommendations.

(See Section 4)

valve. (See Section 4)
Repair the water softener.

Part Number 80-1620-3 5-1

Before Calling For Service Section 5

Problem Possible Cause To Correct

Ice machine produces shallow or
incomplete cubes, or the ice fill p attern on
the evaporator is incomplete.

Low ice capacity. Water inlet valve filter screen is dirty. Remove the water inlet valve and clean

Ice thickness probe is out of adjustment. Adjust the ice thickness probe.

(See Section 4)

Water trough level is too low. Check the water level probe for damage.

(See Section 3)

Water inlet valve filter screen is dirty. Remove the water inlet valve and clean

the filter screen. (See Section 4)
Water filtration is poor. Replace the filter.
Hot incoming water. Connect the ice machine to a cold water

supply. (See Section 2)
Water inlet valve is not working. Replace the water inlet valve.
Incorrect incoming water pressure. Water pressure must be 20-80 psi

(1.4 bar - 5.5 bar)
Ice machine is not level. Level the ice machine.

(See Section 2)

the filter screen. (See Section 4)
Incoming water supply is shut off. Open the water service valve.
Water inlet valve stuck open or leaking. Place toggle switch in OFF position, if

water continues to enter water trough

replace the water inlet valve.
The condenser is dirty. Clean the condenser. (See Section 4)
High air temperature entering condenser. Air temperature must not exceed 120

°F

(39°C)

Safety Limit Feature

In addition to the standard safety controls, such as the
high pressure cutout, your Manitowoc ice machine
features built-in safety limits which will stop the ice
machine if conditions arise which could cause a major
component failure.

Before calling for service, re-start the ice machine using
the following procedure:

1. Move the ICE/OFF/CLEAN switch to OFF and then
back to ICE.

A. If the safety limit feature has stopp e d th e ice

machine, it will restart after a short delay.
Proceed to step 2.

B. If the ice machine does not restart, see “Ice

machine does not operate” on the previous
page.

2. Allow the ice machine to run to determine if the
condition is recurring.

A. If the ice machine stops again, the condition has

recurred. Call for service.

B. If the ice machine continues to run, the condition

has corrected itself. Allow the ice machine to
continue running.

5-2 Part Number 80-1620-3