Manitowoc Ice QYDUALC Installation Manual

Q Model

QuietQube Ice Machines

with CVD Technology

Model QDUALC

Installation

and

Owner/Operator

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 Manitowo c Ice Machine will provide you with many years of

reliable and economical performance.

Part Number 000001530

8/2006

Safety Notices

Procedural Notices

As you work on a QuietQube®-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 a QuietQube®-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 you Manitowoc Ice Machine.
Read and understand this manual. It contains
valuable care and maintenance information. If you
enounter 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.

We reserve the right to make product improvements at any time.

Specifications and design are subject to change without notice.

Section 1
General Information

Table of Contents

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

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

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

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

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

Ice Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Side By Side Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

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

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

Guardianf Sachet Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Arctic Puref Water Filter System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

Service Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Section 2
Installation Instructions

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

Ice Machine Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

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

Condensing Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Ice Machine Head Section Clearance Requirements . . . . . . . . . . . . . . . . . . . 2-4

Stacking Two Ice Machines on a Single Storage Bin . . . . . . . . . . . . . . . . . . . 2-4

Location of CVD Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Condensing Unit Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Condensing Unit Heat of Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Leveling the Ice Storage Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Air-Cooled Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Head Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

QDUALC Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

CVD1875/CVD2075 Air-Cooled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Ice Storage Bin Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

S970 Ice Storage Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Large Capacity Ice Storage Bin Dimensions . . . . . . . . . . . . . . . . . . . . . . . 2-3

30 Inch (76 cm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

48 Inch (122 cm) & 60 Inch (152 cm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Part Number 000001530 1

Table of Contents (continued)

Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Fuse/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Minimum Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

QuietQube® Ice Machine Head Section . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

CVD® Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

QuietQube® Ice Machine Head Section Electrical Wiring Connections . . . . 2-8

115/1/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

230/1/50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

For United Kingdom Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Condensing Unit Electrical Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . 2-9

208-230/1/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

208-230/3/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

230/1/50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Ice Machine Head Section Water Supply and Drains . . . . . . . . . . . . . . . . . . . 2-10

Potable Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Potable Water Inlet Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Water Supply and Drain Line Sizing/Connections . . . . . . . . . . . . . . . . . . . . 2-11

Refrigeration System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Usage With Non-Manitowoc

Condensing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Refrigeration Line Set Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

A. Line Set Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

B. Line Set Rise or Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

C. Suction Line Oil Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

3 Phase Scroll Compressor Rotation CVD2075 Only. . . . . . . . . . . . . . . . . . . . 2-18

Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Before Starting the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

AuCS® Automatic Cleaning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Section 3
Ice Machine Operation

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

Ice Machine Head Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

CVD Condensing Unit

CVD1875/CVD2075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Ice Making Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

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

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

Harvest Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

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

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

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

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

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

2 Part Number 000001530

Section 4
Maintenance

Interior Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Ice Machine Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Cleaning the Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Section 5
Before Calling For Service

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

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

Table of Contents (continued)

AlphaSan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Cleaning & Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Safety Limit Stand-By Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Safety Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Part Number 000001530 3

Table of Contents (continued)

4 Part Number 000001530

Section 1

General Information

Model Numbers

This manual covers the following models:

Ice Machine Head Section CVD® Condensing Unit*

QRDUALC
QDDUALC
QYDUALC

For 3 phase electrical option: add the number “3” to the
end of model number (CVD18753).

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

!

When installing with non-Manitowoc ice storage
systems or Manitowoc F & B style bins. Manitowoc
QuietQube® ice machines require the ice storage
bin, to incorporate an ice deflector.

Prior to using a non-Manitowoc ice storage system
with Manitowoc ice machines, contact the
manufacturer to assure their ice deflector is
compatible with Manitowoc ice machines.

CVD1875
CVD2075

Ice Cube Sizes

Dice

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

2.22 x 2.22 x 2.22 cm

SV3105

Half Dice

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

0.95 x 2.86 x 2.22 cm

!

Warning

QDUALC ice machines are not approved for use on
Manitowoc S570 series bins.

Part Number 000001530 1-1

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.

ICE DEFLECTOR

QDUALC ice machines mounted on an ice dispenser do
not require an ice deflector.

QDUALC ice machines mounted on an ice storage bin
(Manitowoc or non-Manitowoc) require the use of an ice
deflector. Refer to sales specification literature to
determine the proper deflector kit for your application.

SIDE BY SIDE INSTALLATION

Two QDUALC ice machines can be mounted side by
side on a Manitowoc 60” F & B Style bins. This requires
an installation kit that is necessary to allow access to the
shut-off valves during installation and will improve
access during future service. Refer to sales literature to
determine the proper installation kit for your application.

Warning

!

Manitowoc QDUALC ice machines require the ice
storage bin to incorporate an ice deflector.

The deflector kit is not included with the ice machine
and must be ordered separately.

Prior to using a non-Manitowoc ice storage system
with Manitowoc ice machines, contact the
manufacturer to assure their ice deflector is
compatible with Manitowoc ice machines.

MANITOWOC CLEANER AND SANITIZER

Manitowoc Ice Machine Cleaner and Sanitizer are
available in convenient 16 oz. (473 ml) and 1 gal (3.78 l)
bottles. These are the only cleaner and sanitizer
approved for use with Manitowoc products.

Cleaner Part Number Sanitizer Part Number

16 oz. 94-0456-3 16 oz. 94-0565-3
1 Gallon 94-0580-3 1 Gallon 94-0581-3

AUCS AUTOMATIC CLEANING SYSTEM

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

GUARDIAN 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 PURE 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.

1-2

Part Number 000001530

Section 1 General Information

Model/Serial Number Location

Record the model and serial number of your ice machine
and bin or dispenser in the space provided below.

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

Condensing Unit

MODEL / SERIAL

NUMBERS DECAL

(CVD CONDENSING UNIT)

PT1306

The model and serial number are listed on the OWNER
WARRANTY REGISTRATION CARD. They are also
listed on the MODEL/SERIAL NUMBER DECAL affixed
to the ice machine head section and condensing unit.
Both model/serial numbers must be referenced to obt ain
warranty or service information.

Back of Ice Machine

MODEL /

SERIAL

NUMBERS

DECAL

(ICE

MACHINE)

MODEL /

SERIAL

NUMBERS

DECAL

(BIN)

SV1768A

MODEL / SERIAL

NUMBERS DECAL

(RIGHT SIDE OF

ICE MACHINE

ELECTRICAL

CONTROL BOX)

Model Number

Serial Number

QDUALC

SV1779RH

Model/Serial Number Location

Ice Machine Bin or Dispenser CVD Condensing Unit AuCS Accessory

Part Number 000001530 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
the ice machine is installed.

Important

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

If the OWNER WARRANTY REGISTRATION CARD is
not returned, 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 or Manitowoc
Ice, Inc. 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 included in the ice machine’s
warranty coverage:

1. Normal maintenance, adjustments and cleaning as
outlined in this manual.

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 in this manual,
and the ice machine still does not perform properly, call
your Local Distributor or the Service Department at
Manitowoc Ice, Inc.

1-4

Part Number 000001530

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 installation and start-up
services.

Important

Failure to follow these installation guidelines may
affect warranty coverage.

Ice Machine Installation Options

HEAD SECTION

The ice machine head can be installed with the electrical
inlet, water supply inlet and refrigeration tubing entering
from the back or top of the ice machine.

The ice machine water drain must exit the back of the
ice machine.

TRIM TOP COVER

IN THIS AREA

TUBING CAN BE

ROUTED OUT TOP

TUBING CAN BE

ROUTED OUT

BACK OF THE ICE

MACHINE WITH
PROVIDED 90

ELBOWS

°

SV1769A

SV1768B

Cut the top cover for top routing of electrical inlet, water
supply inlet or refrigeration lines.

1. Prior to cutting, mount top cover onto ice machine.

2. Locate the area that will need to be cut and mark the
top cover.

3. Using a tin snips, cut top cover as needed:

A. Do not cut out entire area! Cut up to 1/8 inch to

marked line.

B. Cut out only what is needed. (If routing only

refrigeration lines out the top, cut just enough to
route these lines.)

C. Do not cut out the entire corner area.

Part Number 000001530 2-1

Installation Instructions Section 2

Ice Machine Dimensions

QDUALC ICE MACHINES

30”

(76.2 cm)

6.87”

29.5”

(74.93 cm)

26.76”

(67.97 cm)

(17.45 cm)

3.24”

(8.23 cm)

26.54”

(67.4 cm)

(50.22 cm)

(5.08 cm)

19.77”

(13.64 cm)

2”

5.37”

Condensing Unit Dimensions

CVD1875/CVD2075 Air-Cooled

(5.31 cm)

(4.27 cm)

2.02”

(5.14 cm)

SV1766

2.09”

1.68”

Important

Failure to follow these installation guidelines may
affect warranty coverage.

26”

(66.04 CM)

26”

(66.04 CM)

(26.04 CM)

13.5”

(34.3 CM)

10.25”

(25.4 CM)

10”

8”

(20.32 CM)

5”

(12.7 CM)

52.5”

(133.35 CM)

6.5”

(16.5 CM)

(36.8 CM)

9”

10”

(28.58 CM)

14.5”

11.5”

5.25”

(13.34 CM)

FRONT VIEW

PT1307

2-2

Part Number 000001530

Section 2 Installation Instructions

Ice Storage Bin Dimensions

S970 ICE STORAGE BIN

Warning

!

All Manitowoc ice machines require the ice storage
system (bin, dispenser, etc.) to incorporate an ice
deflector.
The Manitowoc QDUALC ice machines require
adding Manitowoc Ice Deflector Kit when installing
with non-Manitowoc ice storage systems or 60”
Manitowoc F & B style bins.
Prior to using a non-Manitowoc ice storage system
with other Manitowoc ice machines, contact the
manufacturer to assure their ice deflector is
compatible with Manitowoc ice machines.

SV1610

Large Capacity Ice Storage Bin Dimensions

30 INCH (76 CM)

A

B

43.6”

(110.81 cm)

Bin Model Dimension A (Width)

Dimension B

B700 30 in. (76.2 cm.) 58 in. (147.3 cm.)

B1050 30 in. (76.2 cm.) 78 in. (198.1 cm.)

The bin drain is exactly in the center of the bin.

48 INCH (122 CM) & 60 INCH (152 CM)

A

34” (86.4 cm)

(Height)

34” (86.4 cm)

25.25”

(64.1 cm)

(15.2 cm)

6”

Caution

!

30” large capacity ice storage bins must be
attached to the wall with the bracket provided with
the bin.

B

Bin Model

43.6”

(110.81 cm)

Dimension A

(Width)

25.25”

(64.1 cm)

Dimension B

(Height)

6”

(15.2 cm)

B1100 48 in. (121.9 cm.) 55.0 in. (139.7 cm.)
B1400 60 in. (152.4 cm.) 55.0 in. (139.7 cm.)

The bin drain is exactly in the center of the bin.

Part Number 000001530 2-3

Installation Instructions Section 2

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).

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

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

Ice Machine Head Section Clearance
Requirements

QDUALC:
Top/Sides 5” (127 mm) is recommended for efficient

operation and servicing. There is no minimum clearance
required.

Back 1” (25.4 mm) required when routing electrical inlet,
water inlet and refrigeration tubing out of the top of the
unit.

5” (127 mm) required when routing all connections out
the back.

Caution

!

The ice machine head section 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”.

Stacking Two Ice Machines on a Single
Storage Bin

QDUALC ice machines cannot be stacked. However an
adapter is available that allows two QDUALC ice
machines to be placed side by side on a 60” Manitowoc
F & B style bins.

Location of CVD Condensing Unit

The location selected for the CVD Condensing Unit must
meet the following criteria. If any of these criteria are not
met, select another location.

• The air temperature must be at least -20°F (-28.9°C)
but must not exceed 120°F (48.8°C).

• The location must not allow exhaust fan heat and/or
grease to enter the condenser.

• The location must not obstruct airflow through or
around the condensing unit. Refer to the chart below
for clearance requirements.

Condensing Unit Clearance Requirements

Top/Sides

There is no minimum clearance required, although 6”
(13 cm) is recommended for efficient operation and
servicing only.,

Front/Back

48” (122 cm)

Condensing Unit Heat of Rejection

Series

Condensing Unit

CVD1875 28,000 42,000
CVD2075 39,000 53,000

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

the figure shown is an average.

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-contained air­cooled ice machines are installed.

This information is also necessary when evaluating the
benefits of using water-cooled or CVD® Condensing
Units to reduce air conditioning loads. The amount of
heat added to an air-conditioned environment by a
QuietQube® ice machine head section is negligible.

Air Conditioning**

Heat of Rejection*

Peak

2-4

Part Number 000001530

Section 2 Installation Instructions

Leveling the Ice Storage Bin

1. Screw the leveling legs onto the bottom of the bin.

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

Caution

!

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

3. Move the bin into its final position.

4. Level the bin to assure that the bin door closes and
seals properly. Use a level on top of the bin. Turn
each foot as necessary to level the bin.

NOTE: An optional caster assembly is available for use
in place of the legs. Installation instructions are supplied
with the casters.

Air-Cooled Baffle

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 ‘FOOT’ IN AS

FAR AS POSSIBLE

Leveling Leg and Foot

THREAD LEVELING
LEG INTO BASE OF

CABINET

SV1606

SV1607

Air Baffle

Part Number 000001530 2-5

Installation Instructions Section 2

Electrical Service

GENERAL

Warning

!

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

VOLTAGE

For both the Ice Machine Head Section and the CVD®
Condensing Unit, the maximum allowable voltage
variation is ±10% of the rated voltage at ice machine
start-up (when the electrical load is highest).

Warning

!

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

FUSE/CIRCUIT BREAKER

The ice machine head section and condensing unit are
wired independently from each other.

Ice Machine Head Section

The ice machine head section does not require a
dedicated circuit breaker.

CVD® Condensing Unit

A separate fuse/circuit breaker must be provided for
each condensing unit. 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.

GROUND FAULT CIRCUIT INTERUPTER

Ground Fault Circuit Interupter (GFCI/GFI) protection is
a system that shuts down the electric circuit (opens it)
when it senses an unexpected loss of power,
presumably to ground. Manitowoc Ice, Inc. does not
recommend the use of a GFCI/GFI circuit protection with
our equipment. If code requires the us e of a GF CI /G FI
then you must follow the local code. The circuit must be
dedicated, sized properly and there must be a panel
GFCI/GFI breaker. We do not recommend GFCI/GFI
outlets as they are known for more intermittent n uisance
trips than panel breakers.

2-6

Part Number 000001530

Section 2 Installation Instructions

Electrical Requirements

QUIETQUBE® ICE MACHINE HEAD SECTION

Voltage

Ice Machine

Phase

Cycle

Maximum Fuse/

Circuit Breaker

Total Amps

QDUALC

115/1/60

208-230/1/60

230/1/50

15 amp
15 amp
15 amp

Important

The QuietQube® Ice Machine Head Section and
CVD Condensing Unit are wired independently from
each other.

CVD® CONDENSING UNIT

CONNECT POWER SUPPLY WIRING DIRECTLY TO L1 & L2 ON THE CONTACTOR.
TORQUE SCREWS TO THE TORQUE VALUE SPECIFICATION ON THE CONTACTOR LABEL.
FOLLOW ALL LOCAL, STATE AND NATIONAL ELECTRICAL CODES.

Condensing Unit

CVD1875

CVD2075

Vo ltage Phase

Cycle

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

230/1/50 40 23.2 8 AWG
208-230/1/60 50 27.1 8 AWG
208-230/3/60 40 19.9 8 AWG

230/1/50 50 29.9 8 AWG

Maximum Fuse/

Circuit Breaker

40 24.3 8 AWG
30 16.1 8 AWG

Minimum Circuit

Amps

1.1

0.6

0.6

Minimum Wire Size T o

Condensing Unit

Part Number 000001530 2-7

Installation Instructions Section 2

QuietQube® Ice Machine Head Section 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.

115/1/60

L

1

N=115V

OR

L2=208-230V

GROUND

ICE MACHINE

CONNECTIONS

GROUND

L

1

SV1258

230/1/50

L

N

GROUND

1

ICE MACHINE

CONNECTIONS

L

1

N

GROUND

TO SEPARATE

FUSE/BREAKER.

DISCONNECT ALL

POLES.

SV1191

For United Kingdom Only

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

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

• The wire coloured blue

• The wire coloured brown

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

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

2-8

must be connected to the terminal in the plug which is ma rked with

Part Number 000001530

Section 2 Installation Instructions

Condensing Unit 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.

208-230/1/60

L

1

L

L2

208-230/3/60

L

L

L

GROUND

SV1190

1

2

3

GROUND

CONDENSING

CONNECTIONS

L

1

L

L

UNIT

2

3

TO SEPARATE

FUSE/BREAKER

230/1/50

1

L

1

L

1

GROUND

CONDENSING UNIT

CONNECTIONS

GROUND

TO SEPARATE

FUSE/BREAKER

SV1258

N

GROUND

CONDENSING UNIT

CONNECTIONS

N

GROUND

TO SEPARATE

FUSE/BREAKER.

DISCONNECT ALL

POLES.

SV1191

Part Number 000001530 2-9

Installation Instructions Section 2

Ice Machine Head Section Water Supply and Drains

POTABLE WATER SUPPLY

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

Important

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

POTABLE WATER INLET LINES

Follow these guidelines to install water inlet lines:

• Do not connect the ice machine to a hot water
supply. Be sure all hot water restrictors installed for
other equipment are working. (Check valves on sink
faucets, dishwashers, etc.)

• If water pressure exceeds the maximum
recommended pressure 80 psig (551.5 kPA), obtain
a water pressure regulator from your Manitowoc
distributor.

• Install a water shut-off valve for ice making potable
water.

• Insulate water inlet lines to prevent condensation.

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 enough 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. The ice machine drain requires an 18”
vent.

2-10

Part Number 000001530

Section 2 Installation Instructions

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

Bin Drain

Large Capacity

Bin Drain

°F (0.6°C) Min.

33

90°F (32.2°C) Max.

--- --- 1/2” Female Pipe

--- --- 3/4” Female Pipe

--- ---

20 psi (137.9 kPA) Min.

80 psi (551.5 kPA) Max.

3/8” Female Pipe

Thread

Thread

Thread

1” Female Pipe Thread

T ubing Size Up to Ice

Machine Fitting

3/8” (9.5 mm) min. inside

diameter

1/2” (12.7 mm) min. inside

diameter

3/4” (19.1 mm) min. inside

diameter

1” (25.4 mm) min. inside

diameter

ICE MAKING WATER

INLET FITTING

3/8” F.P.T. (0.95 cm)

18.00” VENT
(45.70 cm)

DRAIN CONNECTION

1/2” N.P.T. (1.27 cm)

DO NOT TRAP

MUST HAVE

AIR-GAP

INCORRECT

Typical Water Supply and Drain Installation

ICE MAKING WATER

DRAIN TUBING

1/2” MIN. I.D. (1.27 cm)

AIR GAP

REQUIRED

OPEN, TRAPPED OR

VENTED DRAIN

SV1783

Part Number 000001530 2-11

Installation Instructions Section 2

Refrigeration System Installation

QuietQube®

Ice Machine

QDUALC

Line Set Suction Line Liquid Line

RC 20/30/50

USAGE WITH NON-MANITOWOC
CONDENSING UNITS

Manitowoc CVD® Condensing Units are specifically
designed for usage with a QuietQube® Ice Machine
Head Section. Standard condensing units and Non­Manitowoc condensing units will not operate a
QuietQube® Ice Machine Head Section.

Remote Single

Condenser

CVD1875
CVD2075

7/8 inch

(22.2 mm)

Circuit

5/8 inch

(15.9 mm)

Line Set*

RC-22
RC-32
RC-52

Insulation

Thickness

3/4”(19mm)

Suction Line

1/4” (7mm)
Liquid Line

Factory Equipment Refrigeration Amounts

ICE MACHINE HEAD SECTION
Each ice machine head section ships from the factory

with a R-404A refrigerant charge appropriate for the
installations with up to 50’ of refrigeration tubing. The
serial tag on the ice machine indicates the refrigerant
charge. For line set runs longer than 50’ 1 lb. of
additional refrigerant must be added for each 10’ of line
set run. The receiver is designed to hold a charge
sufficient to operate the ice machine in ambient
temperatures between -20°F (-28.9°C) and 120°F
(49°C), with line set lengths of up to 100 feet (30.5 m).

Warning

!

The ice machine head section contains the refrigerant
charge. Installation and brazing 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.

Caution

!

The 60-month compressor warranty (including the
36-month labor replacement warranty) will not apply if
the Manitowoc Ice Machine and Manitowoc CVD
Condensing Unit are 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.

CVD

® CONDENSING UNIT

Each condensing unit ships from the factory pressurized
with 50/50 nitrogen helium mixture that must be
removed during the installation process (approximately
20 psig).

REFRIGERATION LINE SETS/TRAP KIT
Refrigeration Rated Tubing and Trap Kits are shipped

capped with atmospheric pressure.

!

Warning

Installation of a QuietQube® Condensing Unit may require
the use of special equipment for placement. Trained and
qualified personnel are required for proper rigging and
lifting. Holes are provided on the corners of the condensing
unit to allow the use of lifting shackles.

2-12

Part Number 000001530

Section 2 Installation Instructions

Refrigeration Line Set Installation

GENERAL

Refrigeration line set installations consist of vertical and
horizontal line set distances between the ice machine
and the condensing unit. The following guidelines,
drawings and calculation methods must be followed to
assure proper oil return and CVD® condensing unit/ice
machine operation.

The refrigeration line set installer must be USA
Government-Environmental Protection Agency (EPA)
certified in proper refrigerant handling and servicing
procedures.

!

Warning

The ice machine head section contains refrigerant
charge. The ice machine he ad sectio n contains thre e
(3) refrigeration valves that must remain closed until
proper installation of the line sets is completed.

Warning

!

Disconnect electrical power to the ice machine head
section and CVD® condensing unit before
proceeding.

A. LINE SET LENGTH
100 feet (30.5 m) Length: The maximum measured

length the line set can be.
The receiver is designed to hold a charge sufficient to

operate the ice machine in ambient temperatures
between -20°F (-28.9°C) and 120°F (4 9° C) , with line set
lengths of up to 100 feet (30.5 m).

Important

QuietQube® ice machines will not function with line
sets greater than 100 feet (30.5 m). Do not attempt to
go beyond this distance and add refr igera nt ch ar ge to
compensate! Refer to factory equipment refrigerant
amounts on previous page for details.

B. LINE SET RISE OR DROP

35’ (10.7 M)

MAX.

DISTANCE

Step 1 Verify Ice Machine and CVD® Condensing

Unit Locations Are Within Guidelines.

Prior to installation of the ice machine head section and
CVD® condensing unit be sure that the distance
between then is within the line set routing guidelines
outlined in this manual.

Roof/Wall Penetration

If required, cut a 3-inch (76.2 mm) circular hole in the
wall or roof for routing of refrigeration tubing. A qualified
person must perform all roof penetrations.

Step 2 Route Refrigeration Tubing

Properly route refrigeration tubing between the ice
machine head section and the CVD® condensing unit.

SV1751

35 feet (10.7 m) Rise: The maximum distance the
CVD® condensing unit can be above the ice machine.

15’ (4.5 M)

MAX.

DISTANCE

SV1750

15 feet (4.5 m) Drop: The maximum distance the CVD®
condensing unit can be below the ice machine.

Part Number 000001530 2-13

Installation Instructions Section 2

C. SUCTION LINE OIL TRAPS

Caution

!

Do not form unwanted traps in refrigeration lines.
Never coil excess refrigeration tubing.

0 to 20 feet (0 to 6.1 m) Rise: The ice machine head
section has one oil trap built in which allows for a
maximum condenser rise of 20 feet (6.1 m) without
additional traps in the suction line.

21 to 35 feet (6.4 to 10.7 m) Rise: The suction line
requires an additional Oil Trap (“S” type) to be installed.
Install the trap as close as possible to midpoint between
the ice machine head section and CVD condensing unit.
S-Trap Kits are a vailable from Manitowoc (refer to chart).

21’ OR MORE

RISE

ADDITIONAL

TRAP KIT

REQUIRED

Service Loop

A service loop in the line set permits easy access to the
ice machine for cleaning and service.

• The supplied service loop is an installation
requirement. Excess tubing length must be
sufficient to allow 180° rotation of the ice
machine.

• A service loop is not considered an oil trap.

• The service loop is not included when calculating
length, rise or drop of the tubing run.

• Do not use hard rigid copper for the service loop.

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.

Step 3 Lengthening or Reducing Line Set Lengths

Caution

!

Do not form unwanted traps in refrigeration lines.
Never coil excess refrigeration tubing.

Manitowoc S-Trap Kit

Model S-Trap Kit

QDUALC K00164

When the line set required shortening or lengthening, do
so before connecting the line set to the ice machine
head section or the CVD condensing unit.

SV1751

SV1760

Tubing Size

Number

7/8 inch

(22.2 mm)

2-14

Part Number 000001530

Section 2 Installation Instructions

A

Step 4 Connecting the line set.

To prevent oxidation of the copper, purge line set and
condensing unit with dry nitrogen while brazing.

Connect The Line Set To The Ice Machine Head
Section

!

Warning

The ice machine head section contains refrigerant
charge. The ice machine he ad sectio n contains thre e
(3) refrigeration valves that must remain closed until
proper installation of the line sets is completed.

The line set can be routed for entry through the top or
rear of the ice machine head section.

• Top routing requires the cover to be trimmed.

• Rear routing requires the use of the supplies 90°
elbows.

Nitrogen purge is recommended while brazing the line
set to the ice machine head section. The line set shut off
valves at the back of the ice machine must remain
closed and be protected from heat during the brazing
process. Wrap the valves in a wet rag or other type of
heat sink prior to brazing. Cool braze joint with water
immediately after brazing to prevent heat migration to
the valve.

Connect The Line Set To The CVD Condensing Unit

!

Warning

The condensing unit ships from the factory
pressurized with a 50/50 mixture of nitrogen/helium.
Bleed off pressure from both suction and liquid line
access ports prior to cutting into refrigeration lines.

The compressor oil rapidly absorbs moisture. Be
prepared to complete line set installation and start your
evacuation process in order to minimize the time the
compressor is exposed to the atmosphere. (Maximum
amount of time the system can be exposed to the
atmosphere is 15 minutes).

The line set can be routed for entry through the rear or
left side of the condensing unit.

• Remove knockout for preferred location.

• Insert supplied plastic bushings in knockout holes to
prevent tubing from contacting sheet metal.

• Use the supplied 90° elbows to route tubing.

• Cut the tubing ends of the suction and liquid lines
and braze the line sets to the condensing unit.

SUCTION

LINE

LIQUID

LINE

VALVES MUST REMAIN

CLOSED AND BE

PROTECTED FROM

HEAT WHEN BRAZING

(WRAP WITH WET RAG)

Warning

!

SV1757

MINIMIZE THE TIME THE REFRIGERATION

SYSTEM IS EXPOSED TO THE ATMOSPHERE

(15 MINUTES MAXIMUM)

PT1306

The condensing unit ships from the factory
pressurized with a 50/50 mixture of nitrogen/helium.
Bleed off pressure from both suction and liquid line
access ports prior to cutting into refrigeration lines.

Part Number 000001530 2-15

Installation Instructions Section 2

Step 5 Pressure Test and Evacuate The Line Set

and CVD Condensing Unit

Schrader valve core removal tools that allow for removal
and installation of the valve cores without removing
manifold gauge set hoses are recommended to
decrease the evacuation time.

Leave the line set shut off valves closed (front seated).
Pressure test the line sets and CVD condensing unit
with 150 psig of dry nitrogen. Add nitrogen at the line set
shut off valves located at the back of the ice machine.
Complete the pressure test, verify no leaks are present
and remove the nitrogen from the system before
connecting the vacuum pump. Connect a vacuum pump
to both of the line set shut off valves located at the back
of the ice machine head section. Evacuate to 500
microns minimum. To completely evacuate the CVD
condensing unit, continue the evacuation for 30 minutes
after reaching the 500 micron point.

If required, the line set and condensing unit can be
evacuated from the schrader valves located in the CVD
condensing unit. Schrader valve core removal tools (that
allow for putting the cores back in without removing
vacuum pump hoses) must be used if evacuating from
the condensing unit side.

Pressure test the condensing unit and line set with 150
psig of dry nitrogen. Add nitrogen at the conden sing unit
Schrader valves. Complete the pressure test, verify no
leaks are present and remove the nitrogen from the
system before connecting a vacuum pump. Connect the
vacuum pump to both the Schrader valves and evacuate
to 500 microns minimum.

Disconnect the vacuum pump from the condensing unit
access ports prior to proceeding. Open refrigeration
system shut off valves.

The suction line, liquid line and receiver service valves
are closed during shipment and installation.

CONDENSING UNIT

SCHRADER VALVES

CONNECT

VACUUM PUMP TO

LINE SET SHUT

OFF VALVES

SV1769b

SV1306A

2-16

Part Number 000001530

Section 2 Installation Instructions

Step 6 Open The Valves Prior To Starting The Ice

Machine.

The suction line, liquid line and receiver service valves
are closed during shipment and installation. Open the
valves prior to starting the ice machine.

All refrigeration valve caps must be reinstalled to
prevent future refrigeration leaks.

Important

A. Slowly backseat (open-turn counterclockwise)

the suction line shut off valve.

B. Slowly backseat (open-turn counterclockwise)

the liquid line shut off valve.

C. Slowly backseat (open-turn counterclockwise)

the receiver service valve.

NOTE: You will not hear refriger ant flow when the valves
are opened. Refrigerant will not flow until the toggle
switch is placed in the ice position and the liquid line
solenoid valve opens.

USE ALLEN WRENCH TO OPEN

(TURN COUNTERCLOCKWISE)

LIQUID AND SUCTION LINE SHUT

OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES

OFF VALVES

SV1769C

Verify O-ring in schrader valve caps are intact and
reinstall on shut off valves to prevent refrigerant leakage.
Replace shut off valve access caps and torque to the
following specifications.

Torque Value’s

Stem 18-20 ft. lbs.
Caps 12-15 ft. lbs.

Schrader Core 1.5-3 in. lbs.

Replace cap on receiver service valve and tighten.

TURN

COUNTERCLOCKWISE

RECEIVER SERVICE V ALVE CAP

(TURN COUNTERCLOCKWISE

TO REMOVE)

SV1756

Open Receiver Service Valve

Caution

!

After opening suction, discharge and receiver service
valves, refrigerant pressure will not be detected until
the toggle switch is placed in the ice position and the
cool vapor solenoid valve energizes.

There is a liquid line solenoid valve at the outlet of the
receiver; refrigerant will not flow to the condensing unit
until the ice machine head section is started. Connect
power to both the ice machine head section and the
CVD condensing unit. Place the ICE/OFF/CLEAN toggle
switch into the ICE position, this will allow refrigerant to
enter the line set and condensing unit.

Part Number 000001530 2-17

Installation Instructions Section 2

Step 7 Leak Check The Refrigeration System

Leak check the new line set connections at the ice
machine head section, condensing unit and S trap as
well as all factory joints throughout the entire system.
Disconnect power to the CVD condensing unit. Place the
ICE/OFF/CLEAN toggle switch into the ICE position.
This allows the low side and high side pressures to
equalize. Place the ICE/OFF/CLEAN toggle switch in the
OFF position. Connect power to the CVD condensing
unit and allow system to pump down.

Step 8 Insulation Requirements

To prevent condensation the entire suction line including
the shut-off valve must be insulated. All insulation must
be airtight and sealed at both ends. Insulate shut-off
valves with the supplied preformed insulation.

The following insulation requirements prevent
condensation at 90°F (32.2°C) ambient 90% Relative
Humidity. If higher humidity is expected, increase
insulation thickness.

The entire suction line set, including the suction service
valve located on the back of the ice machine requires:

Suction Line Liquid Line Min. Insulation

Thickness

3/4”(19mm)

3/4 inch

(19 mm)

1/4 inch

(7 mm)

Suction Line

1/4” (7mm)

Liquid Line

3 Phase Scroll Compressor Rotation
CVD2075 Only

A trained and qualified technician must verify
compressor rotation at equipment st artup o r compressor
warranty will be void. Incorrect rotation of a scroll
compressor can be identified by:

• Noisy compressor operation

• Elevated suction pressure

• Low discharge pressure

• Compressor trips on overload protector
To change compressor rotation, reverse (exchange

locations) any two incoming power supply leads.
Te st run ice machine in the freeze and harvest cycles,

then place toggle switch in OFF position and verify
condensing unit cycles off.

Important

To prevent condensation the entire suction line
including the shut off valve must be insulated. All
insulation must be airtight and sealed at both ends.
The minimum requirements are for conditions at or
below 90% humidity and 90°F (32.2°C) ambient.
When higher humidity will be experienced, insulation
wall thickness will need to be increased.

2-18

Part Number 000001530

Section 2 Installation Instructions

CVD CONDENSING

UNIT

ELECTRICAL

DISCONNECT

SUCTION

LIQUID

LINE

LINE

ICE MACHINE

HEAD SECTION

BIN

BIN DRAIN LINE

SHUT-OFF

VALVES

ICE MACHINE DRAIN

LINE

SV1768D

Typical QuietQube System Installation

Part Number 000001530 2-19

Installation Instructions Section 2

Installation Checklist

Is the Ice Machine level?

Has all of the internal packing been removed?

Have all of the electrical and water connections

been made?

Has the supply voltage been tested and checked

against the rating on the nameplate?

Is there proper clearance around the ice machine

for air circulation?

Has the ice machine been installed where

ambient temperatures will remain in the range of
35° - 110°F (1.7° - 43.3°C)?

Has the ice machine receiver service valve been
opened 100%?

Are the ice machine line set shut-of f valves ope n
100%?

Does the condenser fan motor(s) operate
properly after start-up?

Have all the refrigeration fittings and joints been
leak checked?

Is the line set routed properly?

Is a refrigeration oil trap (S-trap) installed if the
condenser is installed 21 to 35 feet (6.1 to 10.7m)
above the ice machine head?

Has the ice machine been installed where the

incoming water temperature will remain in the
range of 33° - 90°F (0.6° - 32.2°C)?

Are the ice machine and bin drains separately

vented?

Are all electrical leads free from contact with

refrigeration lines and moving equipment?

Has the owner/operator been instructed rega rding

maintenance and the use of Manitowo c Cleane r
and Sanitizer?

Has the warranty registration card been sent to
the factory?

Has the ice machine and bin been sanitized?

Has the CVD® condensing unit been installed to
prevent any roofing damage?

Have the refrigeration lines been insulated and
secured properly to prevent vibration?

Has the remote condensing unit been located
where ambient temperatures will remain in the
range of -20° to 120°F (-28.9° to 49°C)?

Is the toggle switch set to ice?

Is the ice thickness control set correctly?

Is the water trough drain plug installed? (The
drain plug is taped to the top of the water pump)

Does the condenser fan motor(s) operate
properly after start-up?

2-20

Is the direction of rotation correct on a CVD2075
3ph scroll compressor?

Part Number 000001530

Section 2 Installation Instructions

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

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 and Owner/Operator Use and Care
Guide for details.

SV1601

Part Number 000001530 2-21

Installation Instructions Section 2

THIS PAGE INTENTIONALLY LEFT BLANK

2-22

Part Number 000001530

Component Identification

ICE MACHINE HEAD SECTION
QDUALC

EVAPORATOR

WATER

PUMP

Section 3

Ice Machine Operation

DISTRIBUTION

TUBE

SUCTION LINE

SHUT-OFF

VALVE

LIQUID LINE

SHUT-OFF

VALVE

WATER

CURTAIN

WATER INLET

VALVE

WATER

DUMP

VALVE

WATER

TROUGH

ICE

THICKNESS

PROBE

SV1780

RECEIVER

SERVICE

VALVE

RECEIVER

CVD CONDENSING UNIT
CVD1875/CVD2075

ACCESS

VALVES

ELECTRICAL

COMPARTMENT

CONDENSER

FAN MOTOR

LIQUID LINE

SOLENOID

VALVE

AIR

CONDENSER

COOL

VAPOR

VALVE

SV1779RH

HEAD PRESSURE
CONTROL VALVE

ICE/OFF/CLEAN

COOL VAPOR

VALVE

WATER INLET

FITTING

BRACKET

TOGGLE

WITCH

SV1779LH

LIQUID LINE

AND

SUCTION LINE

CONNECTION

POINTS

SUCTION

ACCUMULATOR

COMPRESSOR

PT1306A

Part Number 000001530 3-1

Ice Machine Operation Section 3

Ice Making Sequence of Operation

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

1. Water Purge

Before the refrigeration system 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 solenoid valves are also
energized during the water purge, although they stay on
for an additional 5 seconds (50 seconds total on time)
then shuts off.

2. Refrigeration System Start-Up
Ice Machine Head Section: The liquid line solenoid

valve energizes after the 45 second water purge and
remains on throughout the entire Freeze and Harvest
Sequences. The harvest solenoid valves remains on for
5 seconds during initial compressor start-up and then
shuts off.

The water fill valve is energized at the same time as the
liquid line solenoid valve.

CVD Condensing Unit: When the refrigerant pressure
is high enough to close the low pressure control, (after
the cool vapor valves energize in step 1) the contactor
coil is energized and the compressor starts. The
compressor and fan cycling control are supplied with
power throughout the entire Freeze and Harvest
Sequences. When the refrigerant pressure is high
enough to close the fan cycling pressure control the
condenser fan motor starts.

FREEZE SEQUENCE

3. Prechill

The liquid line solenoid is energized for 30 seconds prior
to water flow. This allows the refrigeration system to start
up and prechill the evaporator. The water fill valve
remains energized until the water level sensor is
satisfied.

4. Freeze

The water pump restarts after the 30 second 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 one more time to refill the water trough as
needed.

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.

HARVEST SEQUENCE

5. Water Purge

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 for the last
15 seconds of the 45 second water purge. After the
45 second water purge, the water pump and dump
solenoid valve de-energize. The harvest solenoids open
at the beginning of water purge.

6. Harvest

The harvest solenoid valves remain open and the
refrigerant warms each evaporator causing the cube s to
slide as a sheet, off the evaporator and into the storage
bin. The ice may fall first from either the right or the left
evaporator, or both at the same time. The sliding sheet
of cubes swings the water curtain out, opening the
corresponding bin switch, which causes relay #5 or #6 to
open. Opening relay #5 or #6 de-energizes the
corresponding harvest solenoid valve for the remainder
of the Harvest Sequence. The momentary opening and
re-closing of both bin switches terminates the Harvest
Sequence and returns the ice machine to the Freeze
Sequence (steps 3-4).

6a. Water Assist Harvest Feature

Typical duration of a harvest sequence is less than 2.5
minutes when the harvest sequence time reaches 4
minutes the following occurs:

4 minutes into a Harvest Sequence. The water fill valve
will energize to fill the trough with water.

5 minutes into a Harvest Sequence. The water pump will
energize and flow water over the evaporators.

The water fill valve and water pump remain on until all
bin switches have been activated, or until the 7 minute
Harvest Sequence time limit is reached.

3-2

Part Number 000001530

Section 3 Ice Machine Operation

AUTOMATIC SHUT-OFF

7. Automatic Shut-Off
Ice Machine Head Section: When the storage bin is full

at the end of a harvest sequence, the sheet of cubes
fails to clear either one or both water curtains. After one
or both water curtains are held open for 7 seconds the
ice machine shuts off.

CVD Condensing Unit: When the refrigerant pressure
is low enough to open the low-pressure switch, the
contactor coil is de-energized and the compressor and
condenser fan motor stop.

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(s). As the water curtain(s) swing
back to the operating position, the bin switch re-closes
and the ice machine restart s (steps 1 - 2) provided the 3
minute delay period is complete. Both curtains must be
closed to start an ice making sequence.

Part Number 000001530 3-3

Ice Machine Operation Section 3

Operational Checks

GENERAL

Manitowoc ice machines are factory-operated and
adjusted before shipment. Normally , a newly inst alled ice
machine does 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 outlined in this manual are not covered by
the warranty.

Important

CVD2075 Condensing Units

A scroll compressor must be operated for a
minimum break in period of 72 hours before full ice
production capacity will be reached.

WATER LEVEL

ICE THICKNESS CHECK

After a harvest cycle, inspect the ice cubes in the ice
storage bin. The ice thickness probe is factory-set to
maintain the ice bridge thickness at 1/8" (3.2 mm).

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" (3.2 mm) thick.

2. If adjustment is necessary, turn the ice thickness
probe adjustment screw clockwise to increase
bridge thickness, counterclockwise to decrease
bridge thickness.

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

ADJUSTING SCREW

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.). Repair or replace the
probe as necessary.

SV1616A

1/8” ICE BRIDGE THICKNESS

SV1208

Ice Thickness Check

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

3-4

Water Level Probe

Part Number 000001530

Section 4 Maintenance

Section 4

Maintenance

Interior Cleaning and Sanitizing

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. The ice
machine must be taken apart for cleanin g and sanitizing.

Caution

!

Use only Manitowoc approved Ice Machine Cleaner
and Sanitizer for this application (Manitowoc
Cleaner part number 94-0546-3 and Manitowoc
Sanitizer part 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

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.

Step 3 Remove all ice from the bin.
Step 4 Place the toggle switch in the CLEAN position.

The water will flow through the water dump valve and
down the drain. Wait until the water trough refills and
water flows over the evaporator, then add the proper
amount of ice machine cleaner.

Model Amount of Cleaner

QDUALC 9 ounces (270 ml)

Step 5 Wait until the clean cycle is complete
(approximately 30 minutes) then place the toggle switch
in the OFF position and disconnect power to the ice
machine (and dispenser when used).

Warning

!

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

Warning

!

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

Ice machine cleaner is used to remove lime scale and
mineral deposits. Ice machine sanitizer disinfects and
removes algae and slime.

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.

Step 2 Remove front cover.

Part Number 000001530 4-1

Maintenance Section 4

Step 6 Remove parts for cleaning.

!

Warning

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

A. Remove the splash shield

• Pull forward on left and right nylatch connectors until
disengaged from ice machine (connectors remain
attached to splash shield).

• Remove panel from front of ice machine by lifting
forward and up.

B. Remove the water curtain

• Gently flex the curtain in the center and remove it
from the right side.

• Slide the left pin out.

Water Curtain Removal

C. Remove the ice thickness probe

• Compress the hinge pin on the top of the ice
thickness probe.

NYLATCH CONNECTORS

PULL FORWARD TO

DISENGAGE

SV1771A

Important

Splash Shield must be reinstalled to prevent water
leakage.

COMPRESS
HINGE PIN TO
REMOVE

SV3135

Ice Thickness Probe Removal

• 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. If
complete removal is desired, disconnect the ice
thickness control wiring from the control board.

4-2

Part Number 000001530

Section 4 Maintenance

21-Jan-99

D. Remove the water distribution tube

• Remove the clamp from the vinyl water hose on the
right side of the distribution tube.

1. LIFT UP

2. SLIDE BACK

3. SLIDE TO RIGHT

DISTRIBUTION
TUBE

3

THUMBSCREW

2

1

THUMBSCREW

LOCATING
PIN

SV1620

Water Distribution Tube Removal

• Loosen the two thumbscrews which secure the
distribution tube.
SU1024YC - Loosen the three thumbscrews, which
secure the distribution tube.

• Lift the right side of the distribution tube up, and then
rotate it backward and to the right until the left side of
the distribution tube disengages the thumbscrew.

E. Remove the water level probe

• Pull the water level probe straight down to
disengage.

• Disconnect the wire lead from the water level probe.

• Remove the water level probe from the ice machine.

WATER LEVEL
PROBE
LOCATION

21-Jan-99

Caution

!

Do not force this removal. Be sure the locating tab is
clear before rotating the distribution tube back.

• Pull the vinyl hose off the distribution tube.
Disassemble for cleaning:

• Twist both of the inner tube ends until the tabs line up
with the keyways.

• Pull the inner tube ends outward.

Part Number 000001530 4-3

Maintenance Section 4

F. Remove the water pump.

• Disconnect the water pump power cord.

LOOSEN

SCREWS

POWER
CORD

WATER

PUMP

OUTLET

PUMP

SV1456B

• Disconnect the hose from the pump outlet.

• Loosen the screws securing the pump mounting
bracket to the bulkhead.

• Lift the pump and bracket assembly off the screws.

• Remove water pump assembly from ice machine.Do
not soak the water pump motor in cleaner or sanitizer
solution

G. Remove the water trough

• Remove the quarter turn fasteners (turn
counterclockwise) securing the trough in place.

• Lift up and forward on the front of the water trough
while allowing the rear of the water trough to drop.

• Remove the water trough from the ice machine.

REMOVE THE TWO

1/4 TURN FASTENERS

BY TURNING

COUNTERCLOCKWISE

SV1771B

4-4

DO NOT SOAK

WATER PUMP

MOTOR IN

CLEANER OR

SANITIZER

SOLUTIONS

Part Number 000001530

Section 4 Maintenance

Step 7 Mix a solution of cleaner and warm water.

Depending upon the amount of mineral buildup, a larger
quantity of solution may be required. Use the ratio in the
table below to mix enough solution to thoroughly clean
all parts.

Solution Type Water Mixed With

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

Step 8 Use 1/2 of the cleaner/water mixture to clean all
components. The cleaner solution will foam when it
contacts lime scale and mineral deposits; once the
foaming stops use a soft-bristle nylon brush, sponge or
cloth (NOT a wire brush) to carefully clean the parts.
Soak parts for 5 minutes (15 - 20 minutes for heavily
scaled parts). Rinse all components with clean water.

Step 9 While components are soaking, use 1/2 of the
cleaner/water solution to clean all foodzone surfaces of
the ice machine and bin (or dispenser). Use a nylon
brush or cloth to thoroughly clean the following ice
machine areas:

• Side walls

• Evaporator plastic parts - including top, bottom, and
sides

• Bin or dispenser

Rinse all areas thoroughly with clean water.

Step 10 Mix a solution of sanitizer and warm water.

Solution Type Water Mixed With

Sanitizer 6 gal. (23 l) 4 oz (120 ml) sanitizer

Step 11 Use 1/2 of the sanitizer/water solution to
sanitize all removed components. Use a cloth or sponge
to liberally apply the solution to all surfaces of the
removed parts or soak the removed parts in the
sanitizer/water solution. Do not rinse parts after
sanitizing.

Step 12 Use 1/2 of the sanitizer/water solution to
sanitize all foodzone surfaces of the ice machine and bin
(or dispenser). Use a cloth or sponge to liberally apply
the solution. When sanitizing, pay particular attention to
the following areas:

• Side walls

• Evaporator plastic parts - including top, bottom and
sides

• Bin or dispenser

Do not rinse the sanitized areas.

Step 13 Replace all removed components.
Step 14 Reapply power to the ice machine and place

the toggle switch in the CLEAN position.
Step 15 Wait about two minutes or until water starts to

flow over the evaporator. Add the proper amount of
Manitowoc Ice Machine Sanitizer to the water trough by
pouring between the water curtain and evap orator.

Model Amount of Sanitizer

QDUALC 13 ounces (385 ml)

Part Number 000001530 4-5

Maintenance Section 4

Step 16 The ice machine will stop after the sanitize

cycle (approximately 30 minutes). Place the toggle
switch in the OFF position and disconnect power to the
ice machine.

!

Warning

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

Step 17 Repeat step 6.
Step 18 Mix a solution of sanitizer and warm water.

Solution Type Water Mixed With

Sanitizer 6 gal. (23 l) 4 oz (120 ml) sanitizer

Step 19 Use 1/2 of the sanitizer/water solution to
sanitize all removed components. Use a cloth or sponge
to liberally apply the solution to all surfaces of the
removed parts or soak the removed parts in the
sanitizer/water solution. Do not rinse parts after
sanitizing.

Step 20 Use 1/2 of the sanitizer/water solution to
sanitize all foodzone surfaces of the ice machine and bin
(or dispenser). Use a cloth or sponge to liberally apply
the solution. When sanitizing, pay particular attention to
the following areas:

• Side walls

• Evaporator plastic parts - including top, bottom and
sides

• Bin or dispenser

Do not rinse the sanitized areas.
Step 21 Install the removed parts, restore power and

place the toggle switch in the ICE position.

4-6

Part Number 000001530

Section 4 Maintenance

ADDITIONAL COMPONENT REMOVAL

The following components may be removed for easier
access in some installations or they may need to be
removed and cleaned to correct an operational problem.

NOTE: At this point, the water dump valve can easily be
cleaned. If complete removal is desired, continue with
step 4.

Water Dump Valve

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

1. Set the toggle switch to ICE.

2. Verify the water trough fills with water at the
beginning of the freeze cycle.

3. While the ice machine is in the freeze mode, check
the drain to determine if the dump valve is leaking. If
there is water exiting the ice machine through th e
drain during the freeze cycle the dump valve is
leaking.

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 this procedure 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.

NOTE: During cleaning, do not stretch or damage the
spring.

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

5. Twist the valve body to remove from mounting
bracket.

SPRING

NYLON GASKET

MOUNTING BRACKET

COIL

PLUNGER

DIAPHRAM

VALVE BODY

1. Leaving the wires attached, twist coil and rotate it
counter-clockwise1/4 turn.

2. Lift the coil assembly off the valve body.

3. Remove the spring, plunger, and nylon gasket from
the valve body.

Dump Valve Disassembly

Part Number 000001530 4-7

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 Trou gh” 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.

Ice Machine Inspection

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.

FILTER
ACCESS
SCREWS

FILTER
SCREEN
LOCATION

WATER
INLET
VALVE

4-8

Part Number 000001530

Section 4 Maintenance

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.

!

Warning

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

Shine a flashlight through the condenser to check for dirt
between the fins. To remove dirt:

A. Blow compressed air or rinse with water from

the inside out (opposite direction of airflow). Be
careful not to bend the fan blades.

B. Use a commercial condenser coil cleaner if

required to remove dirt/grease. Follow the
directions and cautions supplied with the
cleaner.

C. Straighten any bent condenser fins with a fin

comb.

“COMB” DOWN

ONLY

CONDENSER

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 procedure below.

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

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

3. Turn off the water supply.

4. Remove the water from the water trough.

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

6. Energize the ice machine and wait one minute for
the water inlet valve to open.

7. 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.

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

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

FIN

COMBS

SV1515

Straighten Bent Condenser Fins

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Maintenance Section 4

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Part Number 000001530

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 000001530 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 float valve filter screen is dirty. Clean the filter screen. (See Section 4)

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

(See Section 4)

Water trough level is too high or 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 is filter.
Hot incoming water. Connect the ice machine to a cold water

supply. (See Section 2)
Incorrect incoming water pressure. Water pressure must be 20-80 psi

(137.9 - 551.5 kPA)
Ice machine head section is not level. Level the ice machine head section.

(See Section 2)

Incoming water supply is shut off. Open the water service valve.
Water float valve stuck open or leaking. Clean or replace the water float

valve.(See Section 4)
The condenser is dirty. Clean the condenser. (See Section 4)
High air temperature around condenser

unit.

Air temperature must not exceed

(48.8°C)

120°F

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 stopped the 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.

SAFETY LIMIT STAND-BY MODE

The first time a safety limit shut down occurs, the ice
machine turns off for 60 minutes (Stand-By Mode). The
ice machine will then automatically restart to see if the
problem re-occurs. During the Stand-By Mode the
harvest light will be flashing continuously and a safety
limit indication can be viewed. If the same safety limit is
reached a second time (the problem has re-occurred)
the ice machine will initiate a safety limit shut down and
remain off until it is manually restarted. During a safety
limit shut down the harvest light will be flashing
continuously.

SAFETY LIMITS
Safety Limit #1

If the freeze time reaches 60 minutes, the control board
automatically initiates a harvest cycle. If three
consecutive 60 minute freeze cycle occur, the ice
machine stops.

Safety Limit #2

If the harvest time reaches 3.5 minutes, the control
board automatically returns the ice machine to the
freeze cycle. If three consecutive 3.5 minute harvest
cycles occur, the ice machine stops.

5-2

Part Number 000001530

Section 5 Before Calling For Service

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Part Number 000001530 5-3

Before Calling For Service Section 5

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Part Number 000001530

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

Manitowoc Foodservice International
S.A.S.
18 Chemin de Charbonnières
F-69132 Ecully Cedex
Téléphone : [phone]
Fax : [phone]
Site Web – www.manitowocice.com

Manitowoc (China) International Refrigeration
Company, LTD
No. 151 Jiam Ye Road
Hangzhou Hi-Tech Industry Development Zone
(Bin Jiang)
Hangzhou, Zhejiang 310052
P.R. China
Telephone: [phone]
Service Fax: [phone]
Web Site – www.manitowoc.com.cn

MANITOWOC ICE, INC.

Web Site - www.manitowocice.com

© 2006 Manitowoc Ice, Inc.