Manitowoc Ice QR0670C Service Manual

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Q Model

QuietQube

® Ice Machines

with CVD® Technology

Models Q0600C/Q0800C/Q1000C

Q1400C/QDUALC

IB0600C/IB0800C/IB1000C

Service

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 models are released. Visit our website for the latest manual. www.manitowocice.com

Part Number 80-1206-3

5/2005

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

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

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

Remote Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

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

Model/Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Owner Warranty Registration Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Warranty Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Section 2 Installation Instructions

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

Condensing Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

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

Securing the Ice Machine to the Dispenser

IB0600C/IB0800C/IB1000C Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Location of CVD Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Condensing Unit Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Condensing Unit Heat of Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Leveling the Ice Storage Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Air-Cooled Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Table of Contents

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Labor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Exclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Authorized Warranty Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Service Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Q0600C/Q0800C/Q1000C Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

IB0800C Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

IB0600c Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

IB1000C Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

SU1000C Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Q1400C Ice Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

QDUALC Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

CVD0675/CVD0875/CVD1075/CVD1285/CVD1375/CVD1475 Air-Cooled . 2-3

CVD1875/CVD2075 Air-Cooled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

CVD1476 Water-Cooled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Typical ICe Beverage on a Dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Fuse/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Minimum Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Part No. 80-1206-3 1

Table of Contents (continued)

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

QuietQube® Ice Machine Head Section Electrical Wiring Connections . . . . . 2-10

QuietQube® Ice Machine Head Section 115/1/60 or 208-230/1/60 . . . . . . . 2-10

QuietQube® Ice Machine Head Section 230/1/50 . . . . . . . . . . . . . . . . . . . . . 2-10

For United Kingdom Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Remote Electrical Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

CVD Condensing Unit

208-230/1/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

208-230/3/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

230/1/50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Ice Machine Head Section Water Supply and Drains . . . . . . . . . . . . . . . . . . . . 2-12

Potable Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Potable Water Inlet Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Water Cooled Condenser Water Supply and Drains . . . . . . . . . . . . . . . . . . . . . 2-13

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

Water Cooled Condenser Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Condensing Unit Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Refrigeration System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Usage With Non-Manitowoc Condensing Units . . . . . . . . . . . . . . . . . . . . . . . 2-14

Refrigeration Line Set Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

A. Line Set Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

B. Line Set Rise or Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

C. Suction Line Oil Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Electronic Bin Thermostat Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Section 3 Maintenance

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

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

CVD Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

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

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

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

Ice Thickness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

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

Interior Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Manitowoc’s Patented Cleaning or Sanitizing Technology . . . . . . . . . . . . . . 3-6

AlphaSan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Procedure To Cancel A Cleaning or Sanitizing Cycle After It Has Started . . 3-8

Automatic Cleaning System (AuCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Removal of Parts For Cleaning/Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

CVD 1476 Water Cooled Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

AuCS Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

2 Part No. 80-1206-3

Table of Contents (continued)

Section 4 Ice Machine Sequence of Operation

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000C/SU1000C . . . . . . . . . . . 4-1

Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . . 4-1

Freeze Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Harvest Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Q1400C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . . 4-3

Freeze Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Harvest Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

QDUALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . . 4-4

Freeze Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Harvest Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Section 5 Water System Ice Making Sequence of Operation

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000C/QDUALC . . . . . . . . . . . 5-1

Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . . 5-1

Freeze Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Water Inlet Valve Safety Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Harvest Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Q1400C/SU1000C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . . 5-3

Freeze Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Harvest Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Section 6 Electrical System

Part No. 80-1206-3

Energized Parts Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000c/SU1000C . . . . . . . . 6-1

Q1400C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

QDUALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Wiring Diagram Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Ice Machine Head Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Ice Machine Head Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Electronic Control Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Table of Contents (continued)

Component Specifications and Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Electronic Bin Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Main Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

Bin Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

ICE/OFF/CLEAN Toggle Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

How The Probe Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

Ice Thickness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

Diagnosing Ice Thickness Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

Water Level Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Water Level Probe Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Water Inlet Valve Safety Shut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Freeze Cycle Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Harvest Cycle Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Diagnosing Water Level Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

Diagnosing An Ice Machine That Will Not Run . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

Ice Machine Head Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

Diagnosing A Condensing Unit That Will Not Run . . . . . . . . . . . . . . . . . . . . . . 6-26

Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

Compressor Electrical Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

Section 7 Refrigeration System

QuietQube® Tubing Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Q0600C/Q0800C/Q1000C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

IB0600C/IB0800C/IB1000C/SU1000C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Q1400C/QDUALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Refrigeration System Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Refrigeration System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Before Beginning Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Ice Production Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Installation/Visual Inspection Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Water System Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Ice Formation Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Safety Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Analyzing Discharge PressureDuring Freeze or Harvest Cycle . . . . . . . . . . 7-15

Analyzing Suction Pressure During Freeze Cycle . . . . . . . . . . . . . . . . . . . . . 7-16

Analyzing Freeze Cycle Suction Line Temperature . . . . . . . . . . . . . . . . . . . 7-18

Cool Vapor Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Refrigeration Component Diagnostic Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

Headmaster Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23

Pressure Control Specifications and Diagnostics . . . . . . . . . . . . . . . . . . . . . . 7-27

Water Regulating Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27

Fan Cycle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27

Low Pressure Cutout (LPCO) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28

High Pressure Cut-Out (HPCO) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28

4 Part No. 80-1206-3

Table of Contents (continued)

Cycle Time/24 Hour Ice Production/Refrigerant Pressure Charts . . . . . . . . . 7-29

Q0600C/CVD0675 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . . 7-30

IB0600C/CVD0675 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . . 7-30

Q0800C/CVD0875 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . . 7-31

IB0800C/CVD0875 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . . 7-31

Q1000C/CVD1075/CVD1285 Series Remote Air Cooled . . . . . . . . . . . . . . . 7-32

IB1000C/CVD1075/CVD1285 Series Remote Air Cooled . . . . . . . . . . . . . . 7-32

SU1000C/CVD1075/CVD1285 Series Remote Air Cooled . . . . . . . . . . . . . . 7-33

Q1400C/CVD1475 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . . 7-34

Q1400C/CVD1476 Series Remote Water Cooled . . . . . . . . . . . . . . . . . . . . 7-34

QDUALC/CVD1875 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . 7-35

QDUALC/CVD2075 Series Remote Air Cooled . . . . . . . . . . . . . . . . . . . . . . 7-35

Refrigerant Recovery/Evacuation and Recharging . . . . . . . . . . . . . . . . . . . . . 7-36

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36

Refrigerant Recovery Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36

Charging Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-37

System Contamination Clean-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38

Replacing Pressure Controls Without Removing Refrigerant Charge . . . . . 7-41

Filter-Driers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43

Total System Refrigerant Charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44

Refrigerant Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44

Refrigerant Re-Use Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45

Part No. 80-1206-3

Table of Contents (continued)

6 Part No. 80-1206-3

Section 1

General Information

Model Numbers

This manual covers the following models:

Ice Machine Head Section CVD® Condensing Unit*

QR0670C QD0672C QY0674C IB0624YC

IB0622DC

QR0870C QD0872C

QY0874C IB0824YC IB0822DC

QR1070C

QD1072C

QY1074C IB1024YC IB1022DC

SU1024YC/SerVend

UC300 Dispenser

QR1470C

QD1472C

QY1474C

QRDUALC QDDUALC QYDUALC

CVD675

CVD875

CVD1075 CVD1285

CVD1375 CVD1475 CVD1476

CVD1875 CVD2075

How to Read a Model Number

9 REMOTE

AIR-COOLED

# CUBE SIZE

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

CONDENSER TYPE

AIR-COOLED WATER-COOLED AIR-COOLED WATER-COOLED AIR-COOLED WATER-COOLED

Q Y 0674 C

ICE MACHINE

MODEL

ICE CUBE SIZE

R REGULAR D DICE Y HALF DICE

ICE MACHINE

SERIES

CONDENSER TYPE

A SELF-CONTAINED AIR-COOLED W SELF-CONTAINED WATER-COOLE N REMOTE AIR-COOLED C CVD REMOTE AIR-COOLED

Remote Condensing Unit

CVD 0675 3

CONDENSING

UNIT MODEL

CONDENSING

UNIT SERIES

3 PHAS

Ice Cube Sizes

SV3106

SV3107

For 3 phase electrical option: add the number “3” to the end of model number (CVD06753).

Warning

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified

Regular

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

2.86 x 2.86 x 2.22 cm

Dice

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

2.22 x 2.22 x 2.22 cm

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

0.95 x 2.86 x 2.22 cm

SV3105

Half Dice

from that of original manufactured specifications.

Important

Warning

When installing with non-Manitowoc ice storage systems or Manitowoc F 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.

Part No. 80-1206-3 1-1

The ice machine sequence of operation for QuietQube® ice machines will differ. Verify the correct sequence of operation is followed for the model you are working on.

Important

The SU1024YC is designed for installation on a SerVend UC-300 dispenser only. Refer to the SerVend UC-300 Installation, Use and Care Manual for dimensions, installation requirements and additional cleaning/ sanitizing procedures.

General Information Section 1

Model/Serial Number Location

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

Condensing Unit

SV1746

MODEL / SERIAL NUMBERS DECAL

(CVD CONDENSING UNIT)

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 obtain warranty or service information.

Q0600C/Q0800C/Q1000C

MODEL /

SERIAL

NUMBERS

DECAL

(ICE

MACHINE)

SV1600A

INSIDE FRONT COVER

(ICE MACHINE HEAD

SECTION)

MODEL /

SERIAL

NUMBERS

DECAL

(BIN)

SV1749

MODEL / SERIAL

NUMBERS DECAL

(CVD CONDENSING

UNIT)

IB0600C/IB0800C/IB1000C

CVD1476

SV3077

Q1400C/QDUALC

MODEL / SERIAL

NUMBERS DECAL

(RIGHT SIDE OF

ICE MACHINE

ELECTRICAL

CONTROL BOX)

SV1770A

SU1024YC/SerVend UC-300 Dispenser

INSIDE FRONT COVER

(ICE MACHINE HEAD

SECTION)

1-2

SV3092

MODEL / SERIAL

NUMBERS DECAL

(ICE MACHINE HEAD

SV3088

MODEL / SERIAL

NUMBERS DECAL

(ICE MACHINE HEAD

SECTION)

Part No. 80-1206-3

SV3003

Section 1 General Information

Owner Warranty Registration Card

GENERAL

Warranty coverage begins 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 supply 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.

Part No. 80-1206-3 1-3

General Information Section 1

THIS PAGE INTENTIONALLY LEFT BLANK

1-4

Part No. 80-1206-3

Installation Instructions

Ice Machine Dimensions

Q0600C/Q0800C/Q1000C ICE MACHINES

Ice Machine Dimension H

Q0600C 21.5 in (54.6 cm) Q0800C 26.5 in (67.3 cm) Q1000C 29.5 in (74.9 cm)

Section 2

Important

Failure to follow these installation guidelines may affect warranty coverage.

IB0600C ICE MACHINE

30”

(76.2 CM)

(33 CM)

22”

(56 CM)

2.13”

(5.4 CM)

5.13”

(13.03 CM)

IB0800C ICE MACHINE

22”

(55.8 CM)

13”

8”

(20.3 CM)

4.5”

(11.4 CM)

5.5”

(14 CM)

24.5”

(62.23 CM)

SV1752

22”

(55.8 CM)

3”

(7.62 CM)

21”

(54.6 CM)

5.5”

(14 CM)

3”

(7.62 CM)

14”

(35.56 CM)

IB1000C ICE MACHINE

22”

(55.8 CM)

5.9”

(15 CM)

8.25”

(21 CM)

10”

(25.4 CM)

19.5”

(48.9 CM)

SV3093

26.5”

(67.31 CM)

3”

(7.62 CM)

5.5”

(14 CM)

3”

(7.62 CM)

14”

(35.56 CM)

5.9”

(15 CM)

8.25”

(21 CM)

12.7”

(32.26 CM)

21.8”

(55.4 CM)

SV3093

30.5”

(77.47 CM)

3”

(7.62 CM)

5.5”

(14 CM)

3”

(7.62 CM)

14”

(35.56 CM)

5.9”

(15 CM)

8.25”

(21 CM)

17.25”

(243.81 CM)

26”

(66 CM)

SV3093

Part No. 80-1206-3 2-1

Installation Instructions Section 2

SU1000C ICE MACHINES

The SU1024YC is designed for installation on a SerVend UC-300 dispenser only. Refer to the Servend UC-300 Installation Use and Care Manual for exterior dimensions.

Q1400C ICE MACHINES

19”

(48.26 cm)

42”

(106.68 cm)

SV3003

12”

(30.48 cm)

30”

(76.2 cm)

6.87”

(17.45 cm)

3.24”

(8.23 cm)

14.77”

(37.52 cm)

20.96”

(53.24 cm)

21.21”

(53.87 cm)

QDUALC ICE MACHINE

2.02”

(5.13 cm)

5.37”

(13.64 cm)

24.5”

(62.23 cm)

(60.96 cm)

SV1766

24”

29.5”

(74.93 cm)

26.76”

(67.97 cm)

30”

(76.2 cm)

(17.45 cm)

3.24”

(8.23 cm)

26.54”

(67.4 cm)

6.87”

19.77”

(50.22 cm)

2”

(5.08 cm)

5.37”

(13.64 cm)

(5.31 cm)

(4.27 cm)

2.02”

(5.14 cm)

SV1766

2.09”

1.68”

2-2

Part No. 80-1206-3

Section 2 Installation Instructions

Condensing Unit Dimensions

CVD0675/CVD0875/CVD1075/CVD1285/CVD1375/CVD1475 Air-Cooled

24.13”

(53.7 CM)

FRONT VIEW

25.75”

(65.4 CM)

14.5”

(36.8 CM)

34”

(86.4 CM)

14.5”

(36.8 CM)

9.5”

(24.1 CM)

CVD1476 Water-Cooled

21.87”

(55.5 CM)

12.6”

(32 CM)

4.26”

(10.8 CM)

8.54”

(21.6 CM)

24.53”

(62.3 CM)

20.64”

(52.4 CM)

CVD1875/CVD2075 Air-Cooled

26”

(66.04 CM)

10.25”

(26.04 CM)

13.5”

(34.3 CM)

10”

(25.4 CM)

(27.3 CM)

8”

(20.32 CM)

10.75”

5”

(12.7 CM)

52.5”

(133.35 CM)

6.5”

(16.5 CM)

(36.8 CM)

9”

10”

SV1758

(28.58 CM)

14.5”

11.5”

5.25”

(13.34 CM)

26”

(66.04 CM)

FRONT VIEW

8.70”

(22.1 CM)

PT1307

SV3076

Part No. 80-1206-3 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.

Ice Machine Head Section Clearance Requirements

Q0600C/Q0800C/Q1000C/Q1400C/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.

IB0600C/IB0800C/IB1000C: Top 2” (51 mm) required clearance for cleaning

procedures and servicing. Back 5” (127 mm) required when routing all connections

out the back.

Sides 8” (203 mm) required for servicing. SU1000C/SerVend UC-300: Top 40” (101.6 cm) required clearance for cleaning

procedures and servicing. Back 12” (30.5 cm) required for cleaning procedures

and servicing.

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

Q0600C/Q0800C/Q1000C Ice Machines:

A stacking kit is required for stacking two ice machines. Installation instructions are supplied with the stacking kit.

IB0600C/IB0800C/IB1000C/Q1400C/QDUAL:

Ice Beverage, Q1400C and QDUAL ice machines cannot be stacked. However an adapter is available that allows two Q1400C or QDUALC ice machines to be placed side by side on a 60” Manitowoc F style bin.

Securing the Ice Machine to the Dispenser

IB0600C/IB0800C/IB1000C Only

Important

Manitowoc Ice/Beverage Ice Machines require an adapter for mounting. Adapters are not included with the ice machine, dispenser or bin and must be ordered separately. When a non-Manitowoc adapter is used, verify the adapter is compatible with Manitowoc Ice/Beverage Ice Machines prior to installation.

Standard with IB ice machines and packaged in head section is the dispenser thermostat kit, K-00209. It is required that this kit be installed with all IB ice machines. The thermostat kit must be installed before the adapter and ice machine head section is installed.

The purpose of the thermostat kit is to reduce machine overfill and condensation problems in high humidity locations. It is recommended that bin level control be used on all dispenser applications with timed agitation to allow for better agitation in the bin.

The ice machine and adapter plate must be secured to the dispenser to prevent tipping.

• Two holes are located in the front bottom rail of the ice machine, to allow attachment to the adapter plate.

• The adapter cover must be secured to the dispenser to prevent ice from dislodging the cover during agitation.

2-4

Warning

The ice machine and adapter plate must be secured to the dispenser to prevent tipping.

Part No. 80-1206-3

Section 2 Installation Instructions

TYPICAL ICE BEVERAGE ON A DISPENSER

Important

DO NOT REMOVE the label on bin adapters. The retainer clips and brackets must be used.

1. Install bin level thermostat bracket.

2. Set adapter on dispenser. Position the adapter so that the front flange of the adapter will be up against the front lip of the dispenser. Adapter may have to be moved towards the back of the dispenser.

3. Using the slotted holes in the adapter as a template, drill four (4) 9/64” diameter holes at the bottom of the slots. Note: Do not drill deeper than 1/4” past the sheet metal. Use a drill stop!

4. Fasten the adaptor to dispenser using the four (4) #8 screws supplied with the adaptor kit.

5. Set the ice machine on top of the adapter. Align holes in ice machine front angle with threaded bosses on the adapter.

BIN

COVER

ADAPTER

6. Secure the ice machine to the adaptor with two (2) #8-32 screws supplied with the kit.

7. Set the bin cover on the adapter, move backwards until the cover hits the stop, and lower the plastic cover insuring that the latch locks.

8. To remove the bin cover, twist the knob, lift up, and pull forward.

PLACE A LARGE FILLET OF

FOOD GRADE RTV INSIDE

EDGE ALONG BOTH SIDES

WHERE ADAPTER

TOUCHES BIN

SV3121

SCREWS

SV3122

DEFLECTOR MUST

STAY IN PLACE

SV3120

Part No. 80-1206-3 2-5

Installation Instructions Section 2

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 130°F (54.4°C).

• CVD1476 Only - The air temperature must be at least 50°F (10°C) but must not exceed 110°F (43°C).

• CVD1875/CVD2075 Only - The air temperature must be at least -20°F (-28.9°C) but must not exceed 120°F (48.9°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” (152 mm) is recommended for efficient operation and servicing only.,

Front/Back

48” (122 cm)

CVD1476 ONLY Top - 5” (127 mm) is recommended for efficient

operation and servicing only.

Front/Back/Sides - 12” (305 mm)

Condensing Unit Heat of Rejection

Series

Condensing Unit

CVD675 9,000 13,900

CVD875 12,400 19,500 CVD1075 16,000 24,700 CVD1285 19,000 28,000 CVD1475 24,000 35,500 CVD1476 24,000 35,500 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.

Air Conditioning**

Heat of Rejection*

QuietQube® ice machine head sections add an insignificant amount of load to a conditioned space.

Peak

2-6

Part No. 80-1206-3

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 No. 80-1206-3 2-7

Installation Instructions Section 2

Electrical Service

GENERAL

Warning

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

VOLTAG E

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

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.

2-8

Part No. 80-1206-3

Section 2 Installation Instructions

Electrical Requirements

QuietQube® Ice Machine Head Section

Vol tag e

Ice Machine

Q0600C IB0600C Q0800C IB0800C Q1000C IB1000C

SU1000C (UC-300 Dispenser)

Q1400C QDUALC

CVD® Condensing Unit

Condensing Unit

CVD0675

CVD0875

CVD1075

CVD1285

CVD1475

CVD1476

CVD1875

CVD2075

Phase

Cycle

115/1/60

208-230/1/60

230/1/50

Important

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

Voltage Phase

Cycle

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

230/1/50 208-230/1/60 20 11. 7 208-230/3/60

230/1/50 208-230/1/60 25 15.6 208-230/3/60

230/1/50 208-230/1/60 25 14.7 208-230/3/60

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

230/1/50 208-230/1/60 30 15.3 208-230/3/60 20 10.8 208-230/1/60 40 24.3 208-230/3/60 30 16.1

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

230/1/50 50 29.9

Maximum Fuse/

Circuit Breaker

15 amp 15 amp 15 amp

Maximum Fuse/Circuit

Breaker

15 9.6 15 7.3 15 9.0

15 8.2 20 11. 3

20 10.6 25 13.8

20 10.6 25 11. 7 35 19.6 25 14.1 35 19.8

Total Amps

1.1

0.6

Minimum Circuit Amps

Part No. 80-1206-3 2-9

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 drawings, the ice machine field wiring connections may use either wire nuts or screw terminals.

QUIETQUBE® ICE MACHINE HEAD SECTION 115/1/60 OR 208-230/1/60

N=115V

L2=208-230V

GROUND

QUIETQUBE® ICE MACHINE HEAD SECTION 230/1/50

GROUND

ICE MACHINE

CONNECTIONS

TO SEPARATE

FUSE/BREAKER.

DISCONNECT ALL

POLES.

SV1191

ICE MACHINE

CONNECTIONS

SV1258

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.

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

2-10

Part No. 80-1206-3

Section 2 Installation Instructions

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 drawings, the ice machine field wiring connections may use either wire nuts or screw terminals.

CVD CONDENSING UNIT 208-230/1/60

CVD CONDENSING UNIT 208-230/3/60

GROUND

SV1190

GROUND

CONDENSING

UNIT

CONNECTIONS

CVD CONDENSING UNIT

TO SEPARATE

FUSE/BREAKER

230/1/50

GROUND

CONDENSING UNIT

CONNECTIONS

GROUND

TO SEPARATE

FUSE/BREAKER

SV1258

GROUND

CONDENSING UNIT

CONNECTIONS

GROUND

TO SEPARATE

FUSE/BREAKER.

DISCONNECT ALL

POLES.

SV1191

Part No. 80-1206-3 2-11

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, obtain a water pressure regulator from your Manitowoc distributor. Float Valve - 80 psig (551.5 kPA) Water Inlet Valve - 90 psig (620.4 kPA)

• 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 condensation.

• Vent the bin and ice machine drain to the atmosphere. The ice machine drain requires an 18” vent.

• Drains must have a union or other suitable means to allow in place disconnection from the ice machine when servicing is required.

• The SU1024YC is designed for installation on a SerVend UC300 dispenser only. Refer to the SerVend UC300 Installation, Use and Care Manual for additional drain requirements.

• A 3’ service loop or disconnect (union) must be installed at the ice machine head section on Ice Beverage models.

2-12

Part No. 80-1206-3

Section 2 Installation Instructions

Water Cooled Condenser Water Supply and Drains

CONDENSER WATER SUPPLY

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

WATER COOLED CONDENSER LINES

Follow these guidelines to install water lines:

• Contact your distributor if your water pressure is greater than 150 psig (1034 kPA). A special order condensing unit is available that allows water pressure up to 350 psig (2413 kPA).

• Install a shutoff valve (inlet and outlet on cooling tower or closed loop circuits) to allow isolation of the water system.

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

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

• Allow for a pressure drop of 8 psig (55 kPA) between the condenser water inlet and outlet.

• Water exiting the condenser must no exceed 110°F (43.3°C).

CONDENSING UNIT DRAIN CONNECTIONS

The condensing unit drain is provided to remove any condensate produced by the suction accumulator. Condensate amounts will vary depending on temperature and humidity.

• The condensing unit must be level front to back and side to side to allow the condensate to drain.

• Drain lines must have a 1.5-inch drop per 5 feet of run (2.5 cm per meter), and must not create traps.

• Drain termination must meet applicable costs.

Warning

Water pressure at the condenser cannot exceed 150 psig (1034 kPA) with the standard water regulating valve. Contact your distributor if your water pressure is greater than 150 psig (1034 kPA). A special order condensing unit is available that allows water pressure up to 350 psig (2413 kPA).

Part No. 80-1206-3 2-13

Installation Instructions Section 2

Refrigeration System Installation

QuietQube®

Ice Machine

Q1000C

IB1000C

SU1000C/UC300

Q1400C Q0600C

IB0600C

Q0800C

IB0800C

QDUALC

Line Set Suction Line Liquid Line

RC 20/30/50 3/4 inch

RC 21/31/51

RC 22/32/52

USAGE WITH NON-MANITOWOC CONDENSING UNITS

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

SU1000C/Servend UC-300 Dispenser

Refrigeration system installation must meet the requirements and follow the procedures listed in this section.

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.

Remote Single

Condenser

CVD1075 CVD1285 CVD1475 CVD1476

CVD675 CVD875 CVD875

CVD1875 CVD2075

(19.1 mm)

5/8 inch

(15.9 mm)

7/8 inch

(22.2 mm)

Circuit

(12.7 mm)

(9.5 mm)

(15.9 mm)

Warning

1/2 inch

3/8 inch

5/8 inch

Line Set*

RC-20 RC-30 RC-50

RC-21 RC-31 RC-51

RC-22 RC-32 RC-52

Insulation

Thickness

1/2”(13mm)

Suction Line

1/4” (7mm) Liquid Line

3/4” (19mm) Suction Line

1/4” (7mm) Liquid Line

Factory Equipment Refrigeration Amounts

ICE MACHINE HEAD SECTION

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000C/ SU1000C/Q1400C

Each ice machine head section ships from the factory with a R-404A refrigerant charge appropriate for the entire system operation. The serial tag on the ice machine indicates the refrigerant charge. The refrigerant charge is sufficient to operate the ice machine in ambient temperatures between -20°F (-28.9°C) and 130°F (54.4°C)*. With line set lengths of up to 100 feet (30.5 m).

*CVD1476: -50°F to 110°F (-46°C to 43°C) QDUALC

Each QDUALC ice machine head section ships from the factory with an R-404A refrigerant charge appropriate for 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.

2-14

Part No. 80-1206-3

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

Warning

The following instructions are provided as a general overview of a typical QuietQube® installation. Refer to the Installation, Use and Care Manual for each specific model for step by step installation instructions.

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.

B. LINE SET RISE OR DROP

35’ (10.7 M)

MAX.

DISTANCE

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

A. LINE SET LENGTH

100 feet (30.5 m) Length: The maximum measured

length the line set can be.

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 refrigerant charge to compensate!

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

Part No. 80-1206-3 2-15

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 available 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.

A service loop is an installation requirement on Ice Beverage Ice Machines. (IB0600C/IB0800C/IB1000C)

SERVICE LOOP

SV3088

• 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.

Manitowoc S-Trap Kit

Model S-Trap Kit

Q0600C

IB0600C

Q0800C

IB0800C

Q1000C

IB1000C

SU1000C

Q1400C

QDUALC K000164

Number

K00172

K00166

Tubing Size

5/8 inch

(15.9 mm)

3/4 inch

(19.1 mm)

7/8 inch

(22.2 mm)

SV1751

SV1760

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.

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.

2-16

Part No. 80-1206-3

Section 2 Installation Instructions

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 head section contains three (3) refrigeration valves that must remain closed until proper installation of the line sets is completed.

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

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 front 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

FILTER

VALVES MUST REMAIN

CLOSED AND BE

PROTECTED FROM

HEAT WHEN BRAZING

(WRAP WITH WET RAG)

Q600C/Q800C/Q1000C

Warning

SHOWN

SV1757

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.

SUCTION

LINE

MINIMIZE THE TIME THE REFRIGERATION

SYSTEM IS EXPOSED TO THE ATMOSPHERE

LIQUID

LINE

SUCTION

LINE

(15 MINUTES MAXIMUM)

CVD1476

SV2085

SV3077

Part No. 80-1206-3 2-17

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 250 microns (or less). To completely evacuate the CVD condensing unit, continue the evacuation for 30 minutes after reaching the 500 micron point.

ALTERNATE CONNECTIONS AT

CONDENSING UNIT SCHRADER VALVES

Step 6 Open The Valves Prior To Starting The Ice

Machine.

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 refrigerant 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 OFF VALVES

OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES

Q0600C/Q0800C/Q1000C

SV1762

SV2085

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.

Isolate the vacuum pump from the line set shut off valves and/or 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.

CONNECT

VACUUM PUMP TO

LINE SET SHUT

OFF VALVES

SV1757

USE ALLEN WRENCH TO OPEN

(TURN COUNTERCLOCKWISE)

LIQUID AND SUCTION LINE SHUT

OFF VALVES

SV1769C

OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES

Q1400C/QDUALC

USE ALLEN WRENCH

TO OPEN (TURN

COUNTERCLOCKWISE)

LIQUID AND SUCTION

LINE SHUT OFF

VALV ES

SV3051

OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES

IB0600C/IB0800C/IB1000C

2-18

Part No. 80-1206-3

Section 2 Installation Instructions

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 VALVE CAP

(TURN COUNTERCLOCKWISE

TO REMOVE)

SV1756

Open Receiver Service Valve

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.

Important

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

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.

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 inch

(19.1 mm)

5/8 inch

(15.9 mm)

7/8 inch

(22.2 mm)

1/2 inch

(12.7 mm)

3/8 inch

(9.5 mm)

5/8 inch

(15.9 mm)

1/2”(13mm)

Suction Line

1/4” (7mm) Liquid Line

3/4” (19mm) Suction Line

1/4” (7mm) Liquid Line

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.

Part No. 80-1206-3 2-19

Installation Instructions Section 2

Suction Shut Off Valve Insulation

The pre-formed suction shut-off valve insulation is located in the plastic bag taped to the water curtain.

A. Verify valve and schrader caps are tightened to

specifications (see Step 6).

PRE-FORMED

INSULATION

TIGHTEN VALVE CAPS

TO SPECIFICATIONS

SV3084

B. Place insulation over schrader valve cap and left

side of valve. Position the tab between the mounting bracket and rear panel.

PLACE TAB BETWEEN

VALVE BODY AND PANEL

3 Phase Scroll Compressor Rotation CVD2075 Only

A trained and qualified technician must verify compressor rotation at equipment startup or 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.

Test run ice machine in the freeze and harvest cycles, then place toggle switch in OFF position and verify condensing unit cycles off.

SV3085

C. Fold insulation and hold against right hand side

of valve while securing with electrical tape. Seal the line set insulation to the shut off valve insulation with electrical tape.

FOLD INSULATION OVER

RIGHT SIDE OF VALVE AND

SECURE WITH

ELECTRICAL TAPE

SV3086

2-20

Part No. 80-1206-3

Section 2 Installation Instructions

Electronic Bin Thermostat Instructions

POSITIONING

1. Remove screws.

2. Remove backing on 2 sided tape.

3. Rotate and position vertically. Re-install both screws.

FINAL

POSITION

SHIPS HORIZONTAL TO PROTECT

PROBE

Bin Thermostat Location

Control Location

CONTROL LOCATION

Part No. 80-1206-3 2-21

Installation Instructions Section 2

THIS PAGE INTENTIONALLY LEFT BLANK

2-22

Part No. 80-1206-3

Component Identification

ICE MACHINE HEAD SECTION Q0600C/Q0800C/Q1000C

Section 3

Maintenance

COOL

VAPOR

VALVE

WATER

INLET

VALVE

WATER DUMP

VALVE

DRAIN

HOSE

LIQUID LINE

SHUT-OFF VALVE

ICE MACHINE HEAD SECTION IB0600C/IB0800C/IB1000C

ELECTRICAL

COMPARTMENT

OFF/ICE/CLEAN

TOGGLE

SWITCH

iCE

THICKNESS

PROBE

LIQUID

LINE SOLENOID

VALVE

RECEIVER

SERVICE

VALVE

RECEIVER

SUCTION LINE

SHUT-OFF VALVE

WATER

DISTRIBUTION TUBE

SV1754

SHUT OFF

VALVES

DISTRIBUTION

TUBE

WATER CURTAIN

DISCHARGE

LINE

CHECK

VALVE

ICE THICKNESS

PROBE

WATER TROUGH

EVAPORATOR

WATER PUMP

ELECTRICAL

COMPARTMENT

FLOW CLAMP USED

ON REGULAR SIZE

CUBE ONLY

ICE/OFF.CLEAN

SWITCH

SV160

RECEIVER

SERVICE

VALVE

WATER

INLET

VALVE

LIQUID

LINE

DRYER

WATER

CURTAIN

WATER

TROUGH

DUMP

VALVE

SV3087

RECEIVERS

LIQUID LINE

SOLENOID

VALVE

COOL

VAPOR

VALVE

SV3051a

Part No. 80-1206-3 3-1

Maintenance Section 3

ICE MACHINE HEAD SECTION SU1000C - SERVEND UC-300 DISPENSER

WATER

DISTRIBUTION

TUBE

SERVICE VALVE

WATER

CURTAIN

RECEIVER

SHUT-OFF VALVES

ICE

THICKNESS

PROBE

WATER

TROUGH

OFF/ICE/CLEAN

TOGGLE

SWITCH

ELECTRICAL

COMPARTMENT

DUMP VALVE

WATER

PUMP

WATER FLOAT

VALVE

COOL VAPOR

SOLENOID

VALVE

LIQUID LINE

SOLENOID

VALVE

ICE MACHINE HEAD SECTION Q1400C/QDUALC

EVAPORATOR

WATER

PUMP

DISTRIBUTION

TUBE

SV2080

WATER PUMP /

FLOA T VALVE

ACCESS PANELS

SUCTION LINE

SHUT-OFF

VALVE

LIQUID LINE

SHUT-OFF

VALVE

COOL

VAPOR

VALVE

SV2081

3-2

WATER

CURTAIN

WATER

TROUGH

SV1780

RECEIVER

SERVICE

VALVE

RECEIVER

LIQUID LINE

SOLENOID

VALVE

WATER

DUMP VALVE

SV1770RH

Part No. 80-1206-3

Section 3 Maintenance

ICE MACHINE HEAD SECTION Q1400C/QDUALC

COOL VAPOR

VALVE

ICE

THICKNESS

PROBE

ICE/OFF/CLEAN

FLOAT VALVE

(WATER INLET)

TOGGLE

WITCH

SV1770LH

CVD CONDENSING UNIT CVD0675/CVD0875/CVD1075/CVD1285/CVD1475

ACCESS

VALVES

ELECTRICAL

COMPARTMENT

LIQUID LINE AND

SUCTION LINE

CONNECTION

POINTS

ACCUMULATOR

SUCTION

CONDENSER

FAN MOTOR

COMPRESSOR

AIR

CONDENSER

PRESSUR

CONTROL

HEAD

VALVE

SV2085

CVD CONDENSING UNIT CVD1476

LIQUID LINE

AND SUCTION LINE CONNECTION

POINTS

WATER

REGULATING

VALVE

SUCTION

ACCUMULATOR

HEAD PRESSURE

CONTROL VALVE

COMPRESSOR

ELECTRICAL

COMPARTMENT

WATER

COOLED

CONDENSER

CVD CONDENSING UNIT CVD1875/CVD2075

ACCESS

VALVES

ELECTRICAL

COMPARTMENT

LIQUID LINE

AND

SUCTION LINE

CONNECTION

POINTS

CONDENSER

FAN MOTOR

SUCTION

ACCUMULATOR

AIR

CONDENSER

HEAD PRESSURE CONTROL VALVE

COMPRESSOR

PT1306

CVD1875 Shown - CVD2075 has same layout with

PT1382

Part No. 80-1206-3 3-3

two condenser fan motors

Maintenance 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 Q0600C/Q0800C/Q1000C/QDUALC

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.

WATER LEVEL Q1400C/SU1000C

1. Check the water level while the ice machine is in the freeze mode and the water pump is running. The correct water level is:

• Q1400C - 1/8” - 1/2” (3-12.5 mm)

• SU1000C - 1/8” - 1/4” (3-6.35 mm)

2. The float valve is factory set for the proper water level. If adjustments are necessary:

A. SU1000C Only-Remove the thumbscrews and

access panels from the float valve/water pump chimney (located behind the evaporator).

B. Loosen the two screws on the float valve

bracket.

C. Raise or lower the float valve assembly as

necessary then tighten the screws.

D. If further adjustment is required, carefully bend

the float arm to achieve the correct water level.

WATER PUMP

IMPELLER

HOUSING

SV1616

3-4

Water Level Probe

SV1616A

Q1400C Shown

WATER LEVEL IB0600C/IB0800C/IB1000C

The water level sensor is set to maintain the proper water level above the water pump housing. The water level is not adjustable. Correct water level is approximately 2.5” (63.5 mm). If the water level is incorrect, check the water level probe for damage (probe bent, etc.). Repair or replace the probe as necessary.

WATER

LEVEL

PROBE

WATER LEVEL

SV3090

Part No. 80-1206-3

Section 3 Maintenance

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

HARVEST SEQUENCE WATER PURGE Q0600C/IB0600C/Q0800C/IB0800C/

Q1000C/IB1000C/QDUAL

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

Important

The harvest sequence water purge 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 may be set to 15, 30, or 45 seconds.

• 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.

1/8” ICE BRIDGE THICKNESS

SV3114

Ice Thickness Check

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

CONTROL BOARD

WATER PURGE ADJUSTMENT

SV1617

Water Purge Adjustment

Part No. 80-1206-3 3-5

Maintenance Section 3

Interior Cleaning and Sanitizing

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 or installation of AuCS required, an extremely dirty ice machine may be taken apart for cleaning and sanitizing.

NOTE: The SU1024YC is designed for installation on a SerVend UC-300 dispenser only. Refer to the SerVend UC-300 Installation, Use and Care Manual for dispenser cleaning/sanitizing procedures.

accessory (Automatic Cleaning System). If

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.

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.

MANITOWOC’S PATENTED CLEANING OR SANITIZING TECHNOLOGY

Manitowoc Ice Machines include technology that allows the initiation and completion of a cleaning or sanitizing cycle at the flip of a switch. This cycle will permit cleaning or sanitizing of all surfaces that come in contact with the water distribution system. Periodic maintenance must be performed that includes sanitizing the bin (or dispenser) and adjacent surface areas, which cannot be contacted by the water distribution system.

This technology will also allow initiation and completion of a clean or sanitize cycle, after which the ice machine automatically starts ice making again.

Refer to the cleaning or sanitizing procedure for complete details.

The AuCS Accessory can be set to automatically start and finish a clean or sanitize cycle every 2, 4, or 12 weeks. This accessory monitors ice-making cycles and initiates a cleaning or sanitizing cycle automatically. Refer to Automatic Cleaning System (AuCS) Accessory for further details.

ALPHASAN

The goal of AlphaSan is to keep the plastic surfaces of an ice machine cleaner, by reducing or delaying the formation of biofilm. The active ingredient in AlpahSan is the element silver in the form of silver ions (Ag+). AlphaSan slowly releases silver ions via an ion exchange mechanism. When AlphaSan is 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 releas of silver not only protects against undesired discoloration of the plastice, but also will last the life of the plastice part. Although AlphaSan helps prevent biofilm build up it does not eliminate the need for periodic cleaning and maintenance. AlphaSan has no adverse efect on the taste of the ice or beverage.

3-6

Part No. 80-1206-3

Section 3 Maintenance

CLEANING PROCEDURE

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 “Sanitizing Procedure” for removal of algae and slime. To initiate a cleaning cycle using Manitowoc’s Patented Cleaning Technology use the following procedure.

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 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 3 Wait about one minute or until water starts to flow over the evaporator.

Step 4 Add the proper amount of Manitowoc Ice Machine Cleaner to the water trough.

QuietQube® Model Amount of Cleaner

Q0600C IB0600C Q0800C IB0800C

IB1000C SU1000C

Q1400C

Q1000C QDUALC 9 ounces (270 ml)

5 ounces (150 ml)

Step 5 The ice machine will automatically time out a ten minute cleaning cycle, followed by six rinse cycles, and stop. This entire cycle lasts approximately 25 minutes.

Step 6 When the cleaning process stops, move the toggle switch to OFF position. Refer to “Sanitizing Procedure” on the next page.

Step 7**

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

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 cleaning cycle is completed, the

CLEAN light will turn off and an ice making sequence will start automatically.

Important

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

* The Q1400C ice machine control board does not

energize a clean light.

** The Q1400C ice machine control board cannot

perform Step 7 and must remain in the CLEAN position until the clean cycle is finished. Moving the toggle switch to the ICE position will initiate a freeze cycle.

NOTE: The SU1024YC is designed for installation on a SerVend UC-300 dispenser only. Refer to the SerVend UC-300 Installation, Use and Care Manual for dispenser cleaning/sanitizing procedures.

NOTE: Periodic cleaning must be performed on adjacent surface areas not contacted by the water distribution system.

Part No. 80-1206-3 3-7

Maintenance Section 3

SANITIZING PROCEDURE

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

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 Remove the water curtain, water distribution tube, and the components you want to clean or sanitize. Disassemble the water distribution tube. See the following pages for removal/disassembly procedures for these parts.

Step 3 Mix a solution of water and sanitizer.

Solution Type Water Mixed With

Sanitizer 6 gal. (23 l) 4 oz. (118 ml) sanitizer

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.

QuietQube® Model Amount of Sanitizer

Q600C/Q800C/Q1000C/IB600C 3 ounces (90 ml)

IB800C/IB1000C/Q1400C 3.5 ounces (104 ml)

QDUALC 7.5 ounces (222 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.

Step 10 Move toggle switch from CLEAN to OFF, then back to CLEAN. Repeat steps 7, 8 and 9.

Step 11 When the sanitizing process stops, move the toggle switch to ICE position.

Important

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

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. Water Distribution tube exterior and interior

surfaces. Remove water distribution tube Orings then sanitize o-rings and distribution tube

E. Water pump discharge tubing

F. Exterior plastic of water pump G. Ice thickness probe and water level probe H. 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.

* The Q1400C ice machine control board does not

energize a clean light.

NOTE: The SU1024YC is designed for installation on a SerVend UC-300 dispenser only. Refer to the SerVend UC-300 Installation, Use and Care Manual for dispenser cleaning/sanitizing procedures.

PROCEDURE TO CANCEL A CLEANING OR SANITIZING CYCLE AFTER IT HAS STARTED

If less than 45 seconds into cycle: Move the toggle switch to the OFF positio n. The cycle is

canceled. If more than 45 seconds into cycle:

Step 1 Move toggle switch to OFF position. Step 2 Move toggle switch to ICE position. Step 3 Move toggle switch to OFF position.

The cycle is canceled.

3-8

Part No. 80-1206-3

Section 3 Maintenance

AUTOMATIC CLEANING SYSTEM (AuCS®)

This accessory monitors ice making cycles and initiates cleaning (or sanitizing) procedures automatically. The

AuCS

Accessory can be set to automatically clean or sanitize the ice machine every 2, 4, or 12 weeks. Periodic maintenance must be performed that includes cleaning of sanitizing the bin (or dispenser) and adjacent surface areas, which cannot be contacted by the water distribution system.

Caution

Refer to the AuCS® Accessory Installation - Use and Care Manual for complete details on the installation, operation, maintenance and cautionary statements of this accessory.

Automatic Operation

The following occurs when the toggle switch is in the ICE position:

• The ice machine control board counts the number of

ice harvest cycles.

•The AuCS

accessory interrupts the ice making mode and starts the cleaning (or sanitizing) mode when the harvest count equals the “Frequency of Cleaning” setting of the AuCS

• When the automatic cleaning (or sanitizing) cycle is complete (approximately 25 minutes), ice making resumes automatically, and the “Harvest Count” is reset to zero.

Important

Opening the curtain switch will interrupt the cleaning or sanitizing sequence. The sequence will resume from the point of interruption when the curtain recloses.

Manual Start Operation 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 To start the automatic cleaning system, move the toggle switch to 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 Self Cleaning mode. The AuCS

then automatically adds cleaner or sanitizer to the ice machine.

Step 3 The ice machine will automatically time out a ten minute cleaning or sanitizing cycle, followed by six rinse cycles, de-energize the Clean light* and stop. This entire cycle lasts approximately 25 minutes.

Step 4 After the cleaning or sanitizing cycle stops, move the toggle switch to ICE position.

Step 5**

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

cleaning or sanitizing cycle, 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 toggle switch from CLEAN to ICE position.

C. When the cleaning or sanitizing cycle is

completed, the clean light will turn off and an ice making sequence will start automatically.

* The Q1400C ice machine control board does not

energize a clean light.

** The Q1400C ice machine control board cannot

perform Step 7 and must remain in the CLEAN position until the clean cycle is finished. Moving the toggle switch to the ICE position will initiate the rinse cycles. The six rinse cycles must be completed before a freeze cycle can be initiated.

Part No. 80-1206-3 3-9

Maintenance Section 3

REMOVAL OF PARTS FOR CLEANING/SANITIZING

Warning

Disconnect electric power to the ice machine at the electric switch box before proceeding.

Warning

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

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.

1. Turn off the water supply to the ice machine at the water service valve.

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

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

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

Caution

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

5. Use the solution and a brush to clean the top, sides, and bottom evaporator extrusions; the inside of the ice machine panels; and the entire inside of the bin.

6. Thoroughly rinse all of the parts and surfaces with clean water.

7. 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.

8. Turn on the water and electrical supply.

9. Verify the ice thickness probe is properly adjusted.

Solution Type Water Mixed With

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

Sanitizer 4 gal. (15 l) 1 oz (30 ml) sanitizer

3-10

Part No. 80-1206-3

Section 3 Maintenance

Splash Shield Q1400C/QDUAL

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

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

Splash Shield IB0600C/IB0800C/IB1000C

1. Remove quarter turn connector from the right side of splash shield.

2. Gently bow the center of the splash shield and lift up and forward to remove.

NYLATCH CONNECTORS

PULL FORWARD TO

DISENGAGE

SV1771A

Important

Splash Shield must be reinstalled to prevent water leakage.

2. BOW IN CENTER AND REMOVE

1. REMOVE 1/4 TURN THUMBSCREW

SV3089

Important

Splash Shield must be reinstalled to prevent water leakage.

Part No. 80-1206-3 3-11

Maintenance Section 3

Wat er Curta in

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

STEP 1

STEP 2

Water Curtain Removal

2. Slide the left pin out.

SV1213

Ice Thickness Probe

1. Compress the side of the ice thickness probe near the top hinge pin and remove it from the bracket.

DISCONNECT

WIRE LEAD

COMPRESS

HINGE PIN TO

REMOVE

ICE

THICKNESS

PROBE

SV1591

Ice Thickness Probe Removal

NOTE: At this point, the ice thickness probe can easily be cleaned. If complete removal is desired, continue with step 2 below.

Warning

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

2. Disconnect the wire lead from the control board inside the electrical control box.

Ice Thickness Probe Cleaning

1. Mix a solution of Manitowoc ice machine cleaner and water (2 ounces of cleaner to 16 ounces of water) in a container.

2. Soak ice thickness probe in container of cleaner/ water solution while disassembling and cleaning water circuit components (soak ice thickness probe for 10 minutes or longer).

3. Clean all ice thickness probe surfaces including all plastic parts (do not use abrasives). Verify the ice thickness probe cavity is clean. Thoroughly rinse ice thickness probe (including cavity) with clean water, then dry completely. Incomplete rinsing and

drying of the ice thickness probe can cause premature harvest.

4. Reinstall ice thickness probe, then sanitize all ice machine and bin/dispenser interior su rfaces.

3-12

Part No. 80-1206-3

Section 3 Maintenance

Wat er Pump Q0600C/Q0800C/Q1000C/Q1400C/QDUALC

Warning

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

1. Disconnect the water pump power cord.

POWER CORD

WATER PUMP

LOOSEN SCREWS

Water Pump IB0600C/IB0800C/IB1000C

Warning

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

1. Remove water level probe; screw and water trough.

2. Note position of water pump outlet, and then disconnect vinyl hose from the pump outlet.

3. Rotate the thumbscrew th at secures the pump to the bulkhead 1/4 turn clockwise.

4. Rotate the water pump assembly 1/4 turn counterclockwise.

5. Lower the pump assembly into the evaporator compartment.

6. Disconnect the water pump power cord.

7. Remove water pump assembly from ice machine.

SV1618

(Q0600C/Q0800C/Q1000C SHOWN)

2. Disconnect the hose from the pump outlet.

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

4. Lift the pump and bracket assembly off the screws.

WATER

PUMP

1/4 TURN

FASTENER

PUMP

OUTLET

SV3091

Part No. 80-1206-3 3-13

Maintenance Section 3

Wat er Pump SU1000C/SerVend UC-300 Dispenser

Warning

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

1. Remove top and back access panels from the wate r pump chimney.

2. Disconnect the water pump power cord.

3. Disconnect the hose from the pump outlet.

4. Loosen the screws securing the pump-mounting bracket to the bulkhead.

5. Lift the pump and bracket assembly off the screws.

LOOSEN

SCREWS AND

LIFT PUMP

Water Distribution Tube

Warning

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

1. 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

THUMBSCREW

LOCATING PIN

SV1620

REMOVE

PANELS

SV2081

Water Distribution Tube Removal

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

3. Lift the right side of the distribution tube up, and th en rotate it backward and to the right until the left side of the distribution tube disengages the thumbscrew.

Caution

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

4. Pull the vinyl hose off the distribution tube.

5. Disassemble for cleaning.

A. Twist both of the inner tube ends until the tabs

line up with the keyways.

B. Pull the inner tube ends outward.

3-14

Part No. 80-1206-3

Section 3 Maintenance

Water Level Probe Q0600C/Q0800C/Q1000C/QDUALC

1. Loosen the screw that holds the water level probe in place. The probe can easily be cleaned at this point without proceeding to step 2.

Warning

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

2. If complete removal is required, disconnect the wire lead from the control board inside the electrical control box.

SCREW

WATER LEVEL PROBE

WATER TROUGH

WIRE LEAD

Water Level Probe IB0600C/IB0800C/IB1000C

1. Loosen the screw that holds the water level probe in place. The probe can easily be cleaned at this point without proceeding to step 2.

Warning

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

2. If complete removal is required, remove the top cover, left and right side panels and control box cover. Disconnect the wire lead from the control board inside the electrical control box.

REMOVE

SCREW

WATER

LEVEL

PROBE

Water Level Probe Removal

ICE MACHINE SIDE PANEL

SV1621

SV3090

Ice Beverage Series Water Level Probe

Part No. 80-1206-3 3-15

Maintenance Section 3

Float Valve Q1400C/SU1000C

Warning

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

1. Turn off the water supply to the ice machine at the water service valve.

2. Turn the splash shield counterclockwise one or two turns.

COMPRESSION

FITTING

FILTER

SCREEN

AND CAP

WATER INLET

TUBE

ON/OFF SLIDE

SWITCH

SPLASH

SHIELD

SV1217

Float Valve Removal

Water Trough Removal IB0600C/IB0800C/IB1000C

Warning

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

1. Remove water level probe screw to avoid damaging the water level probe during water trough removal.

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

3. Pull forward on the water trough until the rear pins disengage from the water trough.

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

5. Remove the water trough from the ice machine.

3. Pull the float valve forward and off the mounting bracket.

4. Disconnect the water inlet tube from the float valve at the compression fitting.

5. Remove the filter screen and cap for cleaning.

(PINS LOCATED BEHIND WATER TROUGH)

SV3089A

3-16

Part No. 80-1206-3

Section 3 Maintenance

Water Trough Removal SU1000C/SerVend UC-300 Dispenser

Warning

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

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

2. Pull forward on the water trough until the rear pins disengage from the water trough.

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

4. Remove the water trough from the ice machine.

Water Trough Removal Q1400C/QDUALC

Warning

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

1. Remove the front splash shield, water pump and float valve from the ice machine.

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

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

4. Remove the water trough from the ice machine.

(PINS LOCATED BEHIND WATER TROUGH)

SV3005

REMOVE THE TWO

1/4 TURN FASTENERS

BY TURNING

COUNTERCLOCKWISE

SV1771B

Part No. 80-1206-3 3-17

Maintenance Section 3

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.

• If the dump valve is leaking, remove, disassemble and clean it.

• If the dump valve is not leaking, do not remove it. Instead, follow the “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.

Dump Valve Removal

Important

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

SV3108

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

2. Lift and slide the coil retainer cap from the to p 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.

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.

PLUNGER

CAP

ENCLOSING

SPRING STOP

COIL

TUBE

SPRING

PLUNGER

DIAPHRAM

3-18

VALVE BODY

SV310

Dump Valve Disassembly

Part No. 80-1206-3

Section 3 Maintenance

Water Inlet Valve Q0600C/IB0600C/Q0800C/IB0800C/ Q1000C/IB1000C/QDUALC

The water inlet valve normally does not require removal for cleaning. Follow the instructions below to determine if removal is necessary.

1. Set the ICE/OFF/CLEAN switch to OFF. Locate the water inlet valve (in the water area of the ice machine). It pours water into the water trough.

2. When the ice machine is off, the water inlet valve must completely stop water flow into the machine. Watch for water flow. If water flows, remove, disassemble and clean the valve.

3. 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, remove, disassemble, and clean the valve.

Follow the procedure below to remove the water inlet valve.

Warning

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

Removal

1. Remove the valve shield if necessary.

2. Remove the filter access screws that hold the valve in place.

NOTE: The water inlet valve can be disassembled and cleaned without disconnecting the incoming water supply line to the ice machine, when a shut off valve is installed before the water inlet valve.

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

Part No. 80-1206-3 3-19

Maintenance Section 3

Removal from Service/Winterization

GENERAL

Special precautions must be taken if the ice machine head section 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.

1. Place the ice machine toggle switch into the OFF position.

2. Turn of f 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.

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. Place the toggle switch in the ICE position, then wait 45 seconds for the water fill solenoid valve to energize. Blow compressed air through the incoming water supply in the rear of the ice mach ine until no more water comes out of the inlet water line.

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

CVD 1476 WATER COOLED CONDENSING UNIT

1. Place the ice machine toggle switch into the OFF position.

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

3. Perform steps 1-6 in previous column.

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

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

3-20

Pry Open the Water Regulating Valve

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

AUCS

Refer to the AuCS of the AuCS

Accessory

Accessory.

Accessory manual for winterization

Part No. 80-1206-3

SV1624

Ice Machine Sequence of Operation

Q0600C/IB0600C/Q0800C/IB0800C Q1000C/IB1000C/SU1000C

Section 4

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 cool vapor solenoid 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.

2. Refrigeration System Start-Up

Ice Machine Head Section: The liquid line solenoid

valve starts after the 45 second water purge, and it remains on throughout the entire Freeze and Harvest Sequences. The cool vapor solenoid valve 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 cool vapor valve energizes in step 1) the contactor coil is energized and the compressor starts. The compressor and fan cycling control* are supplies 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 compressor is on for 30 seconds 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 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 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 7 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.

Continued on next page …

* The Q0600C & IB0600C ice machines do not use a

fan cycling control. The compressor and the condenser fan motor are wired through the contactor. Any time the contactor coil is energized, these components are supplied with power.

Part No. 80-1206-3 4-1

Ice Machine Sequence of Operation Section 4

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 (turns on) 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.)

The cool vapor solenoid valve also opens at the beginning of the water purge to divert refrigerant gas into the evaporator.

When the refrigerant pressure is low enough to open the fan cycling pressure control* the condenser fan motor stops.

* The Q0600C & IB0600C ice machines do not use a

fan cycle control, therefore the condenser fan motor will continue to run in the harvest cycle.

6. Harvest

The cool vapor solenoid valve 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-closing of the bin switch terminates the harvest sequence and returns the ice machine to the freeze sequence (steps 3-4).

AUTOMATIC SHUT-OFF

7. Automatic Shut-Off

Ice Machine Section: 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 7 seconds, the ice machine shuts off. The ice machine remains off for 3 minutes before it can automatically restart.

CVD Condensing Unit: The liquid line solenoid valve closes, allowing the refrigeration system to pump down. when the refrigerant pressure is low enough to open the fan cycling pressure control* the condenser fan motor stops. When the refrigerant pressure is low enough to open the low pressure control, the contactor coil is deenergized and the compressor stops.

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 (steps 1 - 2), provided the 3 minute delay period is complete.

* The Q0600C & IB0600C ice machines do not use a

fan cycle control, therefore the condenser fan motor will energize and de-energize with the compressor.

4-2

Part No. 80-1206-3

Section 4 Ice Machine Sequence of Operation

Ice Making Sequence of Operation Q1400C

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

1. Water Purge

FREEZE SEQUENCE

2. Prechill

Ice Machine Head Section: The liquid line solenoid

valve energize after the 45 second water purge and remains on throughout the entire ice making Freeze and Harvest Sequences. The liquid line solenoid is energized for 30 seconds prior to water flow. This allows the refrigeration system to start-up and prechills the evaporator.

CVD Condensing Unit: When the refrigerant pressure is high enough to close the low pressure switch, the contactor coil is energized and the compressor and condenser fan motor (CVD1475 only) start. They are supplied with power throughout the entire Freeze and Harvest Sequences. The fan motor (CVD1475 only) is wired through a fan cycle pressure control, therefore it may cycle on and off.

3. 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.

When sufficient ice has formed, the water flow (not the ice) contacts the ice thickness probe. After approximately 7 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

4. 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. After the 45 second water purge, the water pump and dump valve de-energizes.

Both cool vapor solenoid valves also open at the beginning of the water purge to divert refrigerant gas into the evaporator.

5. Harvest

The cool vapor solenoid valves remain open and the refrigerant gas warms each evaporator causing the cubes 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.

The momentary opening and closing of the bin switch de-energizes relay#2 (right) or #3 (left). Opening relay #2 or #3 de-energizes the corresponding cool vapor solenoid valve for the remainder of the Harvest Sequence. The momentary opening and closing of both bin switches terminates the Harvest Sequence and returns the ice machine to the Freeze Sequence (steps 2-3).

AUTOMATIC SHUT-OFF

6. 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, all five relays are held open 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 (CVD1475 Only) 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 restarts (steps 1 - 2).Both curtains must be closed to start an ice making sequence.

Part No. 80-1206-3 4-3

Ice Machine Sequence of Operation Section 4

Ice Making Sequence of Operation QDUALC

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 cubes 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.

4-4

Part No. 80-1206-3

Section 4 Ice Machine Sequence of 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 restarts (steps 1 - 2) provided the 3 minute delay period is complete. Both curtains must be closed to start an ice making sequence.

Part No. 80-1206-3 4-5

Ice Machine Sequence of Operation Section 4

THIS PAGE INTENTIONALLY LEFT BLANK

4-6

Part No. 80-1206-3

Section 5

Water System Ice Making Sequence of Operation

Q0600C/IB0600C/Q0800C/IB0800C/ Q1000C/IB1000C/QDUALC

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

1. Before the ice machine starts, the water pump and water dump solenoid are energized for 45 seconds to purge old water from the water trough. This ensures that the ice-making cycle starts with fresh water. The water fill valve energizes after the 45second water purge, and remains on until the water level probe is satisfied.

FREEZE CYCLE

2. To pre-chill the evaporator, there is no water flow over the evaporator for the first 30 seconds of the freeze cycle.

TO DISTRIBUTION TUBE

3. The water pump starts after the 30-second pre-chill. An even flow of water is directed across the evaporator and into each cube cell.

During the first 45 seconds of the Freeze Cycle, the water fill valve cycles on and off as many times as needed to refill the water trough.

After the 45 seconds, the water fill valve cycles on and off one more time to refill the water trough. The water fill valve then remains off for the duration of the Freeze Cycle.

WATER INLET VALVE SAFETY SHUT-OFF

This feature limits the water inlet valve to a six-minute on time. Regardless of the water level probe input, the control board automatically shuts off the water inlet valve if it remains on for 6 continuous minutes.

WATER INLET VALVE

TO DRAIN

WATER PUM P

WATER DUMP VALVE

SV1677

Water Flow Over the Evaporator

Part No. 80-1206-3 5-1

Water System Ice Making Sequence of Operation Section 5

HARVEST CYCLE

4. The water pump and water dump solenoid are energized for 45 seconds to purge the water from the water trough. The water fill valve energizes for the last 15 seconds of the 45-second purge cycle, to flush sediment from the bottom of the water trough.

5. After the 45-second purge, the water pump and water dump valve de-energize.

NOTE: The control board has an adjustable water purge in the harvest cycle. This permits a 15, 30 or 45 second purge cycle. Adjusting the purge time to less than 45 seconds eliminates the 15 second flush time.

QDUALC Only

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 water will flow over

the evaporators. The water fill valve and water pump remain on until all bin switches have been activated.

• 7 Minutes into a Harvest Sequence:

The maximum harvest time is 7 minutes at which point the control board check bin switch position.

Both bin switches closed - The ice machine starts a Prechill cycle.

One or both bin switches open - The ice machine starts and Automatic Shut-off sequence.

AUTOMATIC SHUT-OFF

There is no water flow during an automatic shut-off.

TO DRAIN

WATER INLET VALVE

TO DISTRIBUTION TUBE

WATER PU MP

WATER DUMP VALVE

SV1677

5-2

Water Flow Down the Drain

Part No. 80-1206-3

Section 5 Water System Ice Making Sequence of Operation

Q1400C/SU1000C

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

TO DISTRIBUTION TUBE

WATER DUMP VALVE

FREEZE CYCLE

2. To pre-chill the evaporator, there is no water flow over the evaporator for the first 30 seconds of the freeze cycle.

3. The water pump starts after the 30-second pre-chill. An even flow of water is directed across the evaporator and into each cube cell.

WATER PUM P

TO DRAIN

SV1456

Water Flow Over the Evaporator

Part No. 80-1206-3 5-3

Water System Ice Making Sequence of Operation Section 5

HARVEST CYCLE

4. The water pump and water dump solenoid are energized for 45 seconds to purge the water from the water trough.

5. After the 45-second purge, the water pump and water dump valve de-energize.

NOTE: The control board for SU1000C has an adjustable water purge in the harvest cycle. This permits a 15, 30 or 45 second purge cycle. Adjusting the purge time to less than 45 seconds eliminates the 15 second flush time.

TO DISTRIBUTION TUBE

WATER DUMP VALVE

AUTOMATIC SHUT-OFF

There is no water flow during an automatic shut-off.

WATER PU MP

5-4

TO DRAIN

SV1456

Water Flow Down the Drain

Part No. 80-1206-3

Section 6

Electrical System

Energized Parts Charts

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000C/SU1000C

Control Board Relays Condensing Unit

Ice Making

Sequence Of

Operation

START-UP 1

1. Water Purge

2. Refrigeration System

Start-Up FREEZE

SEQUENCE

3. Pre-Chill

4. Freeze On Off Off On Closed On

HARVEST

SEQUENCE

5. Water Purge

6. Harvest Off Off On Off On Closed On

7. AUTOMATIC SHUT-OFF

*Low Pressure Control (close on pressure increase).

1. Initial Start-Up or Start-Up After Automatic Shut-Off

2. Contactor Coil energizes in Water Purge when suction pressure exceeds 22 psig.

3. The fan motor is wired through a fan cycle pressure control, therefore, it may cycle on and off. Q0600C & IB0600C ice machines do not use a fan cycle control, therefore the condenser fan motor will be energized anytime the contactor is closed.

SU1000C - A float valve replaces the water inlet valve. The float adds water anytime the water level drops below the float valve set point.

1 2 3 4 5 LPC* Contactor

Water Pump

On Off On On Off

Off On On Off On Closed On

Off

Off Off Off Off Off Open Off

Water Fill

Valve

May cycle On/ Off during first

45 sec.

-----------

Cycles On,

then Off 1 more time

30 sec. Off,

15 sec. On

Cool Vapor Valve

Off Off On Closed On

On On On Closed On

Water Dump

Valve

Liquid

Line

Solenoid

Val ve

Contactor

Coil

Open/

Closed

Compressor/

Condenser

Fan Motor

Length

Of Time

45 Seconds

5 Seconds

30 Seconds

Until 7 sec.

water contact

with ice

thickness probe

Factory-set at

45 Seconds

Bin switch

activation

Until bin switch

re-closes

Safety Timers

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

Freeze Sequence:

• The ice machine is locked in the Freeze Sequence for the first 6 minutes, not allowing the Ice Thickness Probe to initiate a Harvest Sequence.

• The maximum freeze time is 60 minutes, at which time the Control Board automatically initiates a Harvest Sequence.

Harvest Sequence:

• The maximum harvest time is 3.5 minutes, at which time the Control Board automatically terminates the Harvest Sequence. If the Bin Switch is open, the ice machine will go to Automatic Shut-Off. If the bin switch is closed, the ice machine will go to the Freeze Sequence.

Part No. 80-1206-3 6-1

Electrical System Section 6

Energized Parts Charts

Q1400C

Control Board Relays Condensing Unit

Ice Making

Sequence Of

Operation

START-UP 1

1. Water Purge FREEZE

SEQUENCE

2. Pre-Chill

3. Freeze On Off Off Off On Closed On

HARVEST

SEQUENCE

4. Water Purge

5. Harvest Off On On Off On Closed On2

6. AUTOMATIC SHUT-OFF

*Low Pressure Control (close on pressure increase).

1. Initial Start-Up or Start-Up After Automatic Shut-Off

2. CVD1375/CVD1475 ONLY - The fan motor is wired through a fan cycle pressure control, therefore, it may cycle on and off.

1 2 3 4 5 LPC* Contactor

Water Pump

On Off Off On Off Open Off 45 Seconds

Off Off Off Off On Closed On2 30 Seconds

On On On On On Closed On2

Off Off Off Off Off Open Off

Cool Vapor

Valve

(Right)

Cool

Vapor

Valve

(Left)

Water Dump

Valve

Liquid

Line

Solenoid

Val ve

Contactor

Coil

Compressor/

Condenser

Fan Motor

Length

Of Time

Until 7 sec.

water contact

with ice

thickness

probe

Factory-set at

45 Seconds

Bin switch

activation

Until bin switch

re-closes

Safety Timers

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

Freeze Sequence:

• The ice machine is locked in the Freeze Sequence for the first 6 minutes, not allowing the Ice Thickness Probe to initiate a Harvest Sequence.

• The maximum freeze time is 60 minutes, at which time the Control Board automatically initiates a Harvest Sequence.

Harvest Sequence:

6-2

Part No. 80-1206-3

Section 6 Electrical System

Energized Parts Charts

QDUALC

Control Board Relays Condensing Unit

Ice Making

Sequence Of

Operation

START-UP 1

1. Water Purge

2. Refrigeration System

Start-Up FREEZE

SEQUENCE

3. Pre-Chill

4. Freeze On

HARVEST

SEQUENCE

5. Water Purge

6. Harvest Off Off Off On On On Closed On

7. AUTOMATIC SHUT-OFF

*Low Pressure Control (close on pressure increase).

1. Initial Start-Up or Start-Up After Automatic Shut-Off

2. Contactor Coil energizes in Water Purge when suction pressure exceeds 22 psig.

3. The fan motor is wired through a fan cycle pressure control, therefore, it may cycle on and off.

1 2 3 4 5 6 LPC* Contactor

Liquid Water Pump

Water Fill

Valve

On Off On Off On On Closed On 45 Sec.

Off On Off On On On Closed On

On until

Off

Off Off Off Off Off Off Open Off

Water

Sensed

Cycles Off

then On

1more

time

30 sec.

Off,

15 sec. On

Dump

Solenoid

Off On Off Off Closed On

On On On On Closed On

Line

Solenoid

Valve

Cool

Vap or

Val ve 1

Cool

Vapor

Valve 2

Contactor

Coil

Compressor/

Condenser

Fan Motor

Length

Time

5 Sec.

30 Sec.

Until 10

sec.

water contact with ice

thickness

probe

Factoryset at 45 Seconds

Bin

switch

activation

Until bin

switch re-

closes

Safety Timers

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

Freeze Sequence:

• The ice machine is locked in the Freeze Sequence for the first 6 minutes, not allowing the Ice Thickness Probe to initiate a Harvest Sequence.

• The maximum freeze time is 60 minutes, at which time the Control Board automatically initiates a Harvest Sequence.

Harvest Sequence:

• The maximum harvest time is 7 minutes, at which time the Control Board automatically terminates the Harvest Sequence. If the Bin Switch is open, the ice machine will go to Automatic Shut-Off. If the bin switch is closed, the ice machine will go to the Freeze Sequence.

Part No. 80-1206-3 6-3

Electrical System Section 6

Wiring Diagrams

The following pages contain electrical wiring diagrams. Be sure you are referring to the correct diagram for the ice machine which you are servicing.

Warning

Always disconnect power before working on electrical circuitry.

WIRING DIAGRAM LEGEND

The following symbols are used on all of the wiring diagrams:

* Internal Compressor Overload

(Some models have external compressor overloads)

( ) Wire Number Designation

(The number is marked at each end of the wire)

—>>— Multi-Pin Connection

(Electrical Box Side) —>>— (Compressor Compartment Side)

6-4

Part No. 80-1206-3

Section 6 Electrical System

ICE MACHINE HEAD SECTION

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000C

115V/60Hz/1Ph 230V/60Hz/1Ph 230V/50Hz/1Ph

(Diagram Shown During Freeze Cycle)

ICE THICKNESS PROBE

WATER LEVEL PROBE

SEE SERIAL PLATE FOR VOLTAGE

GROUND

(62)

BIN SWITCH

(64)

(63)

(65)

(66)

TRANS

FUSE (7A)

LOW DC VOLTAGE PLUG

(67)

(68)

(55)

(69)

(62)

(20)

(61)

(60)

(57)

(56)

CLEAN LIGHT

WATER LIGHT

BIN SWITCH LIGHT

HARVEST LIGHT/ SAFETY LIMIT CODE

TOGGLE SWITCH

ICE

OFF

CLEAN

INTERNAL WORKING

(58)

VIEW

WATER VALVE

(21) (22)

COOL VAPOR

VALV E

(77)

DUMP VALVE

(76)

WATER P UM P

(98)

(83)

LIQUID LINE

SOLENOID

(66)

(62)

L2 (N)

(80)

(81)

(9)

(8)

(97)

(75)

(68)

(67)

(69)

SV3094

Part No. 80-1206-3 6-5

Electrical System Section 6

ICE MACHINE HEAD SECTION

IB0600C/IB0800C/IB1000C with Electronic Bin Thermostat

115V/60Hz/1Ph 230V/60Hz/1Ph 230V/50Hz/1Ph

(Diagram Shown During Freeze Cycle)

SEE SERIAL PLATE FOR VOLTAGE

GROUND

ICE THICKNESS PROBE

WATER LEVEL PROBE

BIN SWITCH

(64)

(RED)

(66)

(WHITE)

(62)

(65)

(63)

TRANS

FUSE (7A)

LOW DC VOLTAGE PLUG

(67)

(68)

(55)

(69)

(62)

CLEAN LIGHT

WATER LIGHT

BIN SWITCH LIGHT

HARVEST LIGHT/ SAFETY LIMIT CODE

ICE

OFF

CLEAN

BIN THERMOSTAT

115V

C240V

(20)

(61)

(60)

(57)

(58)

(56)

TOGGLE SWITCH

INTERNAL

WORKING

VIEW

CONTROL

THERMISTOR

WATER VALVE

(21) (22)

COOL VAPOR

VALV E

(77)

DUMP VALVE

(76)

WATER PU MP

(98)

(83)

LIQUID LINE

SOLENOID

(66)

(62)

(BLUE)

L2 (N)

(80)

(81)

(9)

(8)

(97)

(75)

(68)

(67)

(69)

6-6

(BROWN)

*240V Machines Connect

Brown to 240V and Common (C)

SV3094

Part No. 80-1206-3

Section 6 Electrical System

SU1000C

115V/60Hz/1Ph 230V/60Hz/1Ph 230V/50Hz/1Ph

(Diagram Shown During Freeze Cycle)

SEE SERIAL PLATE FOR VOLTAGE

L2 (N)

GROUND

(61)

COOL VAPOR

TRANS

(60)

(57)

(77)

(76)

(98)

VALV E

DUMP VALVE

WATER P UM P

(82)

(81)

(9)

(80)

(75)

ICE THICKNESS PROBE

BIN SWITCH

(66)

(62)

(63)

(65)

FUSE (7A)

(67)

LOW DC VOLTAGE PLUG

(68)

(69)

(55)

(62)

(58)

CLEAN LIGHT

NOT USED

BIN SWITCH LIGHT

HARVEST LIGHT/ SAFETY LIMIT CODE

TOGGLE SWITCH

ICE

OFF

CLEAN

INTERNAL WORKING

VIEW

(56)

(83)

LIQUID LINE

SOLENOID

(66)

(62)

(81)

(80)

(97)

(75)

(68)

(67)

(69)

SV3006

Part No. 80-1206-3 6-7

Electrical System Section 6

Q1400C

115V/60Hz/1Ph 230V/60Hz/1Ph 230V/50Hz/1Ph

(Diagram Shown During Freeze Cycle)

SEE SERIAL PLATE FOR VOLTAGE

L2 (N)

ICE THICKNESS PROBE

GROUND

RESISTOR

(65)

(62)

(63)

TRANS

FUSE (7A)

LOW DC VOLTAGE PLUG

(61)

(60)

(20)

(57)

(58)

(56)

RIGHT CURTAIN

LEFT CURTAIN

HARVEST LIGHT/ SAFETY LIMIT CODE

COOL VAPOR

VALV E (LEFT)

(91)

COOL VAPOR

VALV E

(98)

(83)

(RIGHT)

DUMP VALVE

LIQUID LINE

SOLENOID

(77)

(76)

WATER P UM P

(92)

(81)

(82)

(99)

(80)

(97)

(75)

6-8

BIN SWITCH

(LEFT)

BIN SWITCH

(RIGHT)

(66)

(93)

(67)

(68)

TOGGLE SWITCH

ICE

(69)

OFF

CLEAN

(62)

INTERNAL WORKING

VIEW

FOR

WIRING

(66)

(62)

Part No. 80-1206-3

(68)

(67)

(69)

SV3095

Section 6 Electrical System

QDUALC

115V/60Hz/1Ph 230V/60Hz/1Ph 230V/50Hz/1Ph

(Diagram Shown During Freeze Cycle)

L2 (N)

GROUND

(97)

(75)

(56)

(82)

ICE THICKNESS PROBE

WATER LEVEL PROBE

(55)

(19)

(20

(24)

(23)

CLEAN

OFF

ICE

(58)

(20)

(57)

(60)

(62)

(61)

(1)

(22)

CURTAIN

SWITCH 1

CURTAIN

SWITCH 2

WATER PUMP

(98)

WATER FILL

SOLENOID

(76)

DUMP

SOLENOID

(83)

LIQUID LINE

SOLENOID

(77)

COOL VAPOR

(91)

COOL VAPOR

(2)

VALV E 2

VALV E 1

(99)

(92)

(22)

(81)

(80)

SV3075

Part No. 80-1206-3 6-9

Electrical System Section 6

CONDENSING UNIT

CVD0675/CVD0875/CVD1075/CVD1285/CVD1475/CVD1476/CVD1875/CVD2075

208-230V/60Hz/1Ph or 230V/50Hz/1Ph

(Diagram Shown During Freeze Cycle)

GROUND

(94)

COMPRESSOR

CRANKCASE

HEATER

(95)

L2 (N)

CONTACTOR

CONTACTS

*CVD675.CVD1476 DO

NOT HAVE A FAN

CYCLE CONTROL

*CVD1476 DOES NOT

HAVE A FAN MOTOR

*OVERLOAD

(96)

(85)

(97)

(43)

HIGH

PRESSURE

CUTOUT

FAN CYCLE

CONTROL

FAN CYCLE

CONTROL

COMPRESSOR

(74)

CONTACTOR

COIL

LOW

PRESSURE

SWITCH

FAN MOTOR

RUN CAPACITOR

FAN MOTOR

RUN CAPACITOR

(49)

RELAY

RUN CAPACITOR

(46)

(44)

START

CAPACITOR

(47)

(48)

52 1

COIL

CONTACTOR

CONTACTS

(45)

*CONDENSING UNITS

WITH TWO FANS ONLY

6-10

SV3096

Part No. 80-1206-3

Section 6 Electrical System

CVD0675/CVD0875/CVD1075/CVD1285/CVD1475/CVD1476/CVD1875/CVD2075

208-230V/60Hz/3Ph

(Diagram Shown During Freeze Cycle)

L2L1 L3

T3T2COMPRESSOR

(96)

CONTACTOR

(85)

HIGH PRESSURE

CUTOUT

COMPRESSOR

CRANKCASE

HEATER

*CVD1475 & CVD2075 DO NOT USE A

COMPRESSOR CRANKCASE HEATER

LOW PRESSURE

SWITCH

FAN MOTOR

FAN CYCLE

CONTROL

RUN CAPACITOR

CONTACTOR

COIL

(95)(94)

(74)

*CVD675, CVD1476 DO NOT HAVE A FAN CYLE CONTROL

*CVD1476 DOES NOT HAVE A FAN MOTOR

(97)

FAN CYCLE

CONTROL

FAN MOTOR

RUN CAPACITOR

*CONDENSING

UNIT WITH TWO

FANS O NLY

SV3104

Part No. 80-1206-3 6-11

Electrical System Section 6

Electronic Control Boards

AC LINE VOLTAGE

ELECTRICAL PLUG

AC LINE VOLTAGE

ELECTRICAL PLUG

CLEAN LIGHT

WATER LEVEL PROBE LIGHT

BIN SWITCH LIGHT

HARVEST LIGH SAFETY LIMIT CODE LIGHT

SV1588

7 AMP FUSE

AuCS PLUG

ICE THICKNESS

PROBE

WATER LEVEL

PROBE

DC LOW VOLTAGE

ELECTRICAL PLUG

Q1400C

Green

Red

SINGLE

DUAL

R-BIN SWITCH LIGHT

L-BIN SWITCH LIGHT

HARVEST LIGHT/ SAFETY LIMIT CODE LIGHT

SINGLE OR DUAL EVAPORATOR ICE MACHINE SETTING

SV1587

MAIN FUSE

AuCS PLUG

ICE THICKNESS PROBE

(3/16” CONNECTION)

WATER LEVEL PROBE

DC LOW VOLTAGE

ELECTRICAL PLUG

Yello w

Green

Red

Q0600C/IB0600C/Q0800C/IB0800C/

Q1000C/IB1000C/SU1000C

AC LINE VOLTAGE

ELECTRICAL PLUG

MAIN FUSE

COOL VAPOR

SOLENOID PLUG

WATER PURGE

SETTING

ICE THICKNESS PROBE

WATER LEVEL PROBE

ICE/OFF/CLEAN

SWITCH PLUG

QDUALC

CURTAIN

SWITCH

PLUG

CLEAN LIGHT HARVEST LIGHT

WATER LEVEL LIGHT

WATER FILL LIGHT

LIQUID LINE SOLENOID LIGHT

DUMP VALVE LIGHT

WATER PUMP LIGHT

CURTAIN SWITCH 2 LIGHT COOL VAPOR SOLENOID 2 LIGHT CURTAIN SWITCH 1 LIGHT

COOL VAPOR SOLENOID 1 LIGHT

SV1587A

6-12

Part No. 80-1206-3

Section 6 Electrical System

Component Specifications and Diagnostics

CONTROL BOARD

All QuietQube® control boards incorporate the following features. Refer to “Sequence of Operation” for additional information specific to your model.

Harvest/Safety Limit Light

This light’s primary function is to be on as water contacts the ice thickness probe during the freeze cycle, and remain on throughout the entire harvest cycle. The light will flicker as water splashes on the probes. The light’s secondary function is to continuously flash when the ice machine is shut off on a safety limit, and to indicate which safety limit shut off the ice machine.

Freeze Time Lock-In Feature

The ice machine control system incorporates freeze time lock-in feature. This prevents the ice machine from short cycling in and out of harvest. The control board locks the ice machine in the freeze cycle for six minutes. If the water contacts the ice thickness probe during these six minutes, the harvest light will come on (to indicate that water is in contact with the probe), but the ice machine will stay in the freeze cycle. After the six minutes are up, a harvest cycle is initiated.

To allow the service technician to initiate a harvest cycle without delay, this feature is not used on the first cycle after moving the toggle switch OFF and back to ICE.

Maximum Freeze Time

The control system includes a built-in safety that will automatically cycle the ice machine into harvest after 60 minutes in the freeze cycle.

Safety Limits

There are two safety limits that protect the ice machine if the freeze or harvest cycles are outside of their guidelines.

Three-Minute Delay

Q0600C/IB0600C/Q0800C/IB0800C/ Q1000C/IB1000C/SU1000C/QDUALC

The three-minute delay is initiated whenever the ice machine cycles off (automatic shut-off) on a full bin.

The delay period starts when a water curtain is open for 7 continuous seconds in the harvest cycle.

• If the 3-minute delay period has expired, closure of the water curtain will initiate an immediate start-up of a freeze sequence.

• If the water curtain closes before the 3-minute delay period has expired, the ice machine will start a freeze sequence immediately after the 3-minute delay period expires.

• The 3-minute delay period is over-ridden when the toggle switch is moved to the OFF position, then back to ICE.

Inputs

The control board, along with inputs, controls all electrical components, including the ice machine sequence of operation. Prior to diagnosing, you must understand how the inputs affect the control board operation. Refer to specific component specifications (inputs), wiring diagrams and ice machine sequence of operation sections for details. As an example, refer to “Ice Thickness Probe” in the component specification section of this manual for information relating to how the probe and control board functions together.

Control Board Relays

The control board relays energize and de-energize system components.

Relays are not field replaceable.

QDUALC Water Assist Harvest

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 water will flow 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.

Part No. 80-1206-3 6-13

Electrical System Section 6

ELECTRONIC BIN THERMOSTAT

Function

The temperature control opens the bin switch circuit when ice contacts the sensor. When ice no longer contacts the sensor, the circuit closes and the ice machine starts.

Specifications

Setpoint Range: -30 to 212°F (-34 - 100°C)

RED LEAD

SENSOR

PROBE

BLACK

LEAD

SENSOR

PROBE

KEYPAD JUMPER

LOCATION

CONTROL LOCATION

Control Location

CONTROL SETTINGS

Verify control is set properly before proceeding..

Display Function Preset Settings

SP Set Point 40

DIF Differential 1 ASD Anti-Short Cycle Delay 1 OFS Temperature Offset 0

SF Sensor Failure Mode 1

MATCH WIRING

TO ICE MACHINE VOLTAGE

240V

COM

115V

RED LEAD

BIN SWITCH

or TOGGLE

SWITCH

WIRE

WHITE LEAD BIN SWITCH

or TOGGLE

SWITCH

WIRE

Inside of Bin Thermostat Control

Setting Control Setpoint Value

To view and adjust setpoint, follow these steps:

1. Press MENU until the display flashes SP.

2. Press MENU again to display the existing setpoint value.

3. Press Up or Down (arrows) to change the setpoint value.

4. Press MENU again to save the new value. The display returns to the sensed temperature.

NOTE: If no setup entry is made for 30 seconds, the control reverts to the normal temperature display.

Positioning the Touchpad Jumper

The P5 jumper position determines if the touchpad is locked or unlocked. The control is factory locked; to unlock move the jumper from one pin to two pins.

6-14

Important

If MENU is not pressed after changing the setpoint value, the control reverts to the previously programmed setpoint value.

Part No. 80-1206-3

Section 6 Electrical System

Differential, Anti-Short Cycle Delay, Temperature Offset, or Sensor Failure Operation

To set or verify the Differential, Anti-Short Cycle Delay, Temperature Offset or Sensor Failure Operation use the following method.

Factory Preset Temperature Control Code Settings as follows:

1. Press and hold MENU until the display changes to flashing SP.

2. Press up and down (arrows) repeatedly until the desired function is displayed.

3. Press MENU to display the function’s current value.

4. Press up and down (arrows) until the desired value is displayed.

5. Press MENU to save the new value. The display returns to the sensor temperature.

NOTE: If no setup entry is made for 30 seconds, the control reverts to the temperature display.

NOTE: Any saved control settings are non-volatile and remain in the control’s memory during power interruptions.

Check Procedure

Warning

Line voltage is present inside control. Contact with line voltage can cause serious injury or death.

If the control system does not function properly, verify that the control is wired and set up properly. If the problem persists use the following procedures to determine the cause of the problem.

Important

Follow these troubleshooting procedures in the order presented. Do not skip any of the steps in the procedures.

1. Check the proper voltage to the control.

A. Remove the cover, loosen the four cover

screws.

D. If the voltage reading is not within the required

range, check the power source and input power wires for problems.

2. Fault Codes

If the LCD displays an alarm or fault code (SF or EE):

Fault Code Definition Solution

SF flashing alternately with OP

SF flashing alternately with SH

EE Program failure Reset the control

Open temperature sensor or sensor wiring

Shorted temperture sensor or sensor wiring

See Step 3. Cycle power to reset control.

by pressing MENU. If problem persists, replace the control.

3. Check for proper operation.

NOTE: Perform Steps 1 and 2 before performing this step.

A. Disconnect the load from the output relay

terminals.

B. Reconnect the sensor leads and supply power

to the control.

C. Replace the cover.

D. Check the control settings for proper values.

E. Press and hold MENU until SP appears.

F. Press up and down (arrows) to change the

setpoint temperature above and below the sensor temperature until the relay energizes and de-energizes.

G. If the output relay does not perform as indicated

replace the control.

H. If proper operation of the control is verified,

reconnect the load.

B. Use an AC voltmeter to check the voltage

between the common and 120V or 240V terminals.

C. The voltage must be between102 and 132 volts

for 120V applications, 177 and 264 volts for 208/ 230V applications.

Part No. 80-1206-3 6-15

Electrical System Section 6

MAIN FUSE

Function

The control board fuse stops ice machine operation if electrical components fail causing high amp draw.

Specifications

The main fuse is 250 Volt, 7 amp.

Check Procedure

Warning

High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing the control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board.

1. If the bin switch light is on with the water curtain closed, the fuse is good.

Warning

Disconnect electrical power to the entire ice machine before proceeding.

2. Remove the fuse. Check the resistance across the fuse with an ohm meter.

BIN SWITCH

Function

Movement of the water curtain controls bin switch operation. The bin switch has two main functions:

1. Terminating the harvest cycle and returning the ice machine to the freeze cycle.

This occurs when the bin switch is opened and closed again within 7 seconds during the harvest cycle.

2. Automatic ice machine shut-off.

If the storage bin is full at the end of a harvest cycle, the sheet of cubes fails to clear the water curtain and holds it open. After the water curtain is held open for 7 seconds, the ice machine shuts off. The ice machine remains off until enough ice is removed from the storage bin to allow the sheet of cubes to drop clear of the water curtain. As the water curtain swings back to the operating position, the bin switch closes and the ice machine restarts, provide the three-minute delay has expired.

Important

The water curtain must be ON (bin switch(s) closed) to start ice making.

Reading Result

Open (OL) Replace fuse Closed (O) Fuse is good

Specifications

The bin switch is a magnetically operated reed switch. The magnet is attached to the lower right corner of the water curtain. The switch is attached to the evaporatormounting bracket.

The bin switch is connected to a varying D.C. voltage circuit. (Voltage does not remain constant.)

NOTE: Because of a wide variation in D.C. voltage, it is not recommended that a voltmeter be used to check bin switch operation.

Check Procedure

1. Set the toggle switch to OFF.

2. Watch the bin switch light on the control board.

3. Move the water curtain toward the evaporator. The bin switch must close. The bin switch light “on” indicates the bin switch has closed properly.

4. Move the water curtain away from the evaporator. The bin switch must open. The bin switch light “off” indicates the bin switch has opened properly.

6-16

Part No. 80-1206-3

Section 6 Electrical System

OHM Test

1. Disconnect the bin switch wires to isolate the bin switch from the control board.

2. Connect an ohmmeter to the disconnected bin switch wires.

3. Cycle the bin switch open and closed numerous times by opening and closing the water curtain.

NOTE: To prevent misdiagnosis:

• Always use the water curtain magnet to cycle the switch (a larger or smaller magnet will affect switch operation).

• Watch for consistent readings when the bin switch is cycled open and closed (bin switch failure could be erratic).

Water Curtain Removal Notes

The water curtain must be on (bin switch closed) to start ice making. While a freeze cycle is in progress, the water curtain can be removed and installed at any time without interfering with the electrical control sequence.

If the ice machine goes into harvest sequence while the water curtain is removed, one of the following will happen:

• Water curtain remains off: When the harvest cycle time reaches 3.5 minutes and the bin switch is not closed, the ice machine stops as though the bin were full.

• Water curtain is put back on: If the bin switch closes prior to reaching the 3.5minute point, the ice machine immediately returns to another freeze sequence prechill.

Part No. 80-1206-3 6-17

Electrical System Section 6

ICE/OFF/CLEAN TOGGLE SWITCH

Q0600C/IB0600C/Q0800C/IB0800C/ Q1000C/IB1000C/SU1000C/Q1400C

Function

The switch is used to place the ice machine in ICE, OFF or CLEAN mode of operation.

Specifications

Double-pole, double-throw switch. The switch is connected into a varying low D.C. voltage circuit.

Check Procedure

NOTE: Because of a wide variation in D.C. voltage, it is not recommended that a volt meter be used to check toggle switch operation.

1. Inspect the toggle switch for correct wiring.

2. Isolate the toggle switch by disconnecting all wires from the switch, or by disconnecting the Molex connector and removing wire #69 from the toggle switch.

3. Check across the toggle switch terminals using a calibrated ohm meter. Note where the wire numbers are connected to the switch terminals, or refer to the wiring diagram to take proper readings.

Switch Setting Te rminals Ohm Reading

66-62 Open

ICE

CLEAN

OFF

67-68 Closed 67-69 Open 66-62 Closed 67-68 Open 67-69 Closed 66-62 Open 67-68 Open 67-69 Open

4. Replace the toggle switch if ohm readings do not match all three switch settings.

ICE/OFF/CLEAN TOGGLE SWITCH

QDUALC

Function

The switch is used to place the ice machine in ICE, OFF or CLEAN mode of operation.

Specifications

Single-pole, single-throw switch. The switch is connected into a varying low D.C. voltage circuit.

Check Procedure

NOTE: Because of a wide variation in D.C. voltage, it is not recommended that a volt meter be used to check toggle switch operation.

1. Inspect the toggle switch for correct wiring.

2. Isolate the toggle switch by disconnecting all wires from the switch, or by disconnecting the Molex connector and removing wire #69 from the toggle switch.

3. Check across the toggle switch terminals using a calibrated ohm meter. Note where the wire numbers are connected to the switch terminals, or refer to the wiring diagram to take proper readings.

Switch Setting Ter minals Ohm Reading

23-20 Open

ICE

CLEAN

OFF

23-24 Closed 23-19 Closed 20-23 Open 20-24 Closed 20-19 Closed 23-24 Open 23-19 Open 23-20 Open

4. Replace the toggle switch if ohm readings do not match all three switch settings.

6-18

Part No. 80-1206-3

Section 6 Electrical System

Ice Thickness Probe (Harvest Initiation)

HOW THE PROBE WORKS

Manitowoc’s electronic sensing circuit does not rely on refrigerant pressure, evaporator temperature, water levels or timers to produce consistent ice formation.

As ice forms on the evaporator, water (not ice) contacts the ice thickness probe. After the water completes this circuit across the probe continuously for 6-10 seconds, a harvest cycle is initiated.

ICE THICKNESS CHECK

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, or 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). The starting point before final adjustment is approximately a 3/16” gap. Place a 1/4” drill bit across the evaporator, then adjust the ice thickness probe until the metal T touches the drill bit. Test run and adjust until a 1/8” connecting bridge is obtained

Ice Thickness Probe Cleaning

1. Mix a solution of Manitowoc ice machine cleaner and water (2 ounces of cleaner to 16 ounces of water) in a container.

2. Soak ice thickness probe in container of cleaner/ water solution while disassembling and cleaning water circuit components (soak ice thickness probe for 10 minutes or longer).

drying of the ice thickness probe can cause premature harvest.

4. Reinstall ice thickness probe, then sanitize all ice machine and bin/dispenser interior surfaces.

ADJUSTING SCREW

1/8” ICE BRIDGE

THICKNESS

SV3114

Ice Thickness Check

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

Part No. 80-1206-3 6-19

Electrical System Section 6

DIAGNOSING ICE THICKNESS CONTROL CIRCUITRY

Ice Machine Does Not Cycle Into Harvest When Water Contacts The Ice Thickness Control Probe

Step 1 Bypass the freeze time lock-in feature by moving the ICE/OFF/CLEAN switch to OFF and back to ICE. Wait

until the water starts to flow over the evaporator.

Step 2 Clip the jumper wire leads to the ice thickness probe and any cabinet ground.

EVAPORATOR

ICE THICKNESS PROBE

GROUND

JUMPER WIRE

CLEAN LIGHT

WATER LEVEL LIGHT

BIN SWITCH LIGHT

HARVEST/SAFETY LIMIT LIGHT

SV3010

Step 2

Step 2 Jumper wire connected from probe to ground

Monitoring of Harvest Light Correction

The harvest light comes on, and 6-10 seconds later, ice machine cycles from freeze to harvest.

The harvest light comes on but the ice machine stays in the freeze sequence.

The ice thickness control circuitry is functioning properly. Do not change any parts.

The ice thickness control circuitry is functioning properly. The ice machine is in a six-minute freeze time lock-in. Verify step 1 of this procedure was followed correctly.

The harvest light does not come on. Proceed to Step 3, below.

Step 3 Disconnect the ice thickness probe from the control board at terminal 1C. Clip the jumper wire leads to terminal 1C on the control board and any cabinet ground. Monitor the harvest light.

ICE THICKNESS PROBE

EVAPORATOR

GROUND

JUMPER

WIRE

CLEAN LIGHT

WATER LEVEL LIGHT

BIN SWITCH LIGHT

HARVEST/SAFETY LIMIT LIGHT

SV1588G

SV3011

Step 3

Step 3 Jumper wire connected from control board terminal 1C to ground

Monitoring of Harvest Light Correction

The harvest light comes on, and 6-10 seconds later, ice

The ice thickness probe is causing the malfunction.

machine cycles from freeze to harvest. The harvest light comes on but the ice machine stays in the

freeze sequence.

The control circuitry is functioning properly. The ice machine is in a six-minute freeze time lock-in (verify step 1 of this procedure was followed correctly).

The harvest light does not come on. The control board is causing the malfunction.

6-20

Part No. 80-1206-3

Section 6 Electrical System

Ice Machine Cycles Into Harvest Before Water Contact With The Ice Thickness Probe

Step 1 Bypass the freeze time lock-in feature by moving the ICE/OFF/CLEAN switch to OFF and back to ICE. Wait

until the water starts to flow over the evaporator, then monitor the harvest light.

Step 2 Disconnect the ice thickness probe from the control board at terminal 1C.

ICE THICKNESS PROBE

EVAPORATOR

Step 2

Step 2 Disconnect probe from control board terminal 1C.

Monitoring of Harvest Light Correction

The harvest light stays off and the ice machine remains in the freeze sequence.

The harvest light comes on, and 6-10 seconds later, the ice machine cycles from freeze to harvest.

CLEAN LIGHT

WATER LEVEL LIGHT

BIN SWITCH LIGHT

HARVEST/SAFETY LIMIT LIGHT

SV3011

The ice thickness probe is causing the malfunction. Verify that the Ice Thickness probe is adjusted correctly. The control board is causing the malfunction.

Part No. 80-1206-3 6-21

Electrical System Section 6

Water Level Control Circuitry

WATER LEVEL PROBE LIGHT

The water level probe circuit can be monitored by watching the water level light. The water level light is on when water contacts the probe, and off when no water is in contact with the probe. The water level light functions any time power is applied to the ice machine, regardless of toggle switch position.

FREEZE CYCLE CIRCUITRY

Q0600C/IB0600C/Q0800C/IB0800C Q1000C/IB1000C/QDUALC

Manitowoc’s electronic sensing circuit does not rely on float switches or timers to maintain consistent water level control. During the freeze cycle, the water inlet valve energizes (turns on) and de-energizes (turns off) in conjunction with the water level probe located in the water trough.

During the first 45 seconds of the Freeze Cycle:

• The water inlet valve is on when there is no water in

contact with the water level probe.

• The water inlet valve turns off after water contacts

the water level probe for 3 continuous seconds.

• The water inlet valve will cycle on and off as many times as needed to fill the water trough.

After 45 seconds into the Freeze Cycle:

The water inlet valve will cycle on, and then off one more time to refill the water trough. The water inlet valve is now off for the duration of the freeze sequence.

HARVEST CYCLE CIRCUITRY

The water level probe does not control the water inlet valve during the harvest cycle. During the harvest cycle water purge, the water inlet valve energizes (turns on) and de-energizes (turns off) strictly by time. The harvest water purge adjustment dial may be set at 15, 30 or 45 seconds.

SV1616A

Freeze Cycle Water Level Setting

During the freeze cycle, the water level probe 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.

WATER INLET VALVE SAFETY SHUT-OFF

In the event of a water level probe failure, this feature limits the water inlet valve to a six-minute on time. Regardless of the water level probe input, the control board automatically shuts off the water inlet valve if it remains on for 6 continuous minutes. This is important to remember when performing diagnostic procedures on the water level control circuitry.

6-22

CONTROL BOARD

HARVEST WATER PURGE ADJUSTMENT

SV1617

NOTE: The water purge must be at the factory setting of 45 seconds for the water inlet valve to energize during the last 15 seconds of the Water Purge. If set at 15 or 30 seconds the water inlet valve will not energize during the harvest water purge.

Part No. 80-1206-3

Section 6 Electrical System

DIAGNOSING WATER LEVEL CONTROL CIRCUITRY

Q0600C/IB0600C/Q0800C/IB0800C/Q1000C/IB1000C/QDUAL

Problem: Water Trough Overfilling During The Freeze Cycle

Step 1 Start a new freeze sequence by moving the ICE/

OFF/CLEAN toggle switch to OFF, then back to ICE.

Step 2 Wait until the freeze cycle starts

(approximately 45 seconds, the freeze cycle starts when the compressor energizes) then connect a jumper from the water level probe to any cabinet ground.

Important

This restart must be done prior to performing diagnostic procedures. This assures the ice machine is not in a freeze cycle water inlet valve safety shut-off mode. You must complete the entire diagnostic procedure within 6 minutes of starting.

Important

For the test to work properly you must wait until the freeze cycle starts, prior to connecting the jumper wire. If you restart the test you must disconnect the jumper wire, restart the ice machine, (step 1) and then reinstall the jumper wire after the compressor starts.

YELLOW

GREEN

RED

CLEAN LIGHT

WATER LEVEL LIGHT

BIN SWITCH LIGHT

HARVEST/SAFETY LIMIT LIGHT

GROUND

JUMPER

SV1621A

Step 2

Step 2 Jumper wire connected from probe to ground

Is water flowing into the

water trough?

no on De-Energized This is normal operation.

yes on De-Energized The water inlet valve is

yes off Energized Proceed to step 3.

Part No. 80-1206-3 6-23

The Water Level Light is:

The Water Inlet Valve

Solenoid Coil is:

Cause

Do not change any parts.

causing the problem.

Continued on next page …

Electrical System Section 6

Problem: Water Trough Overfilling During The Freeze Cycle (continued)

Step 3 Allow ice machine to run. Disconnect the water

level probe from control board terminal 1F, and connect a jumper wire from terminal 1F to any cabinet ground.

GROUND

JUMPER WIRE

SV1588G

Remember if you are past 6 minutes from starting, the ice machine will go into a freeze cycle water inlet valve safety shut-off mode, and you will be unable to complete this test. If past 6 minutes you must restart this test by disconnecting the jumper wire, restarting the ice machine, (step 1) and then reinstalling the jumper wire to terminal 1F, after the compressor starts.

Yellow

Green

Red

CLEAN LIGHT

WATER LEVEL LIGHT

BIN SWITCH LIGHT

HARVEST/SAFETY LIMIT LIGHT

SV1588

Is water flowing into

the water trough?

NO ON De-Energized

YES OFF Energized The control board is causing the problem. YES ON De-Energized The water fill valve is causing the problem.

Step 3

Step 3 Jumper wire connected from control board terminal 1F to ground

The Water Level

Light is:

The Water Inlet Valve

Solenoid Coil is:

Cause

The water level probe is causing the problem.

Clean or replace the water level probe.

6-24

Part No. 80-1206-3

Section 6 Electrical System

Problem: Water Will Not Run Into The Sump Trough During The Freeze Cycle

Step 1 Verify water is supplied to the ice machine, and

then start a new freeze sequence by moving the ICE/ OFF/CLEAN toggle switch to OFF then back to ICE.

Important

This restart must be done prior to performing diagnostic procedures. This assures the ice machine is not in a freeze cycle water inlet valve safety shutoff mode. You must complete the entire diagnostic procedure within 6 minutes of starting.

Step 2 Checking for normal operation

Is water flowing into

the water trough?

Yes Off Energized This is Normal Operation don’t change any parts

No On or Off Energized Or De-Energized Proceed to step 3

Step 3 Leave the ice machine run, then disconnect the water level probe from control board terminal 1F.

The Water Level

Light is:

The Water Inlet Valve

Solenoid Coil is:

Step 2 Wait until the freeze cycle starts (approximately

45 seconds, the freeze cycle starts when the compressor energizes), and then refer to chart.

Cause

Important

For the test to work properly you must wait until the freeze cycle starts, prior to disconnecting the water level probe. If you restart the test you must reconnect the water level probe, restart the ice machine, (step 1) and then disconnect the water level probe after the compressor starts.

Is water flowing into

the water trough?

Yes Off Energized The water level probe is causing the problem.

No Off Energized The water inlet valve is causing the problem. No On or Off De-Energized The control board is causing the problem.

DISCONNECT WATER LEVEL PROBE FROM TERMINAL 1F

SV1621G SV1588

Step 3

Step 3 Disconnect water level probe from control board terminal 1F

The Water Level

Light is:

The Water Inlet Valve

Solenoid Coil is:

Clean or replace the water level probe.

CLEAN LIGHT

WATER LEVEL LIGHT

BIN SWITCH LIGHT

HARVEST/SAFETY LIMIT LIGHT

Cause

Part No. 80-1206-3 6-25

Electrical System Section 6

Diagnosing An Ice Machine That Will Not Run

ICE MACHINE HEAD SECTION

Q0600C/IB0600C/Q0800C/IB800C/ Q1000C/IB1000C/SU1000C/Q1400C/QDUALC

Warning

High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board.

If the water pump is energized but no ice is produced refer to condensing unit will not run.

1. Verify primary voltage is supplied to ice machine head section and the fuse/circuit breaker is closed.

2. Verify control board fuse is okay. If the bin switch or water level probe light functions, the fuse is okay.

3. Verify all bin switches function properly. A defective bin switch can falsely indicate a full bin of ice.

4. Verify ICE/OFF/CLEAN toggle switch functions properly. A defective toggle switch may keep the ice machine in the OFF mode.

5. Verify low DC voltage is properly grounded. Loose DC wire connections may intermittently stop the ice machine.

Diagnosing A Condensing Unit That Will Not Run

CONDENSING UNIT

CVD0675/CVD0875/CVD1075/CVD1285/ CVD1475/CVD1875/CVD2075

If the ice machine water pump is not energized refer to “Ice Machine Head Section Will Not Run”.

1. Verify primary voltage is supplied to ice machine condensing unit and the fuse/circuit breaker is closed.

2. Verify the high-pressure cutout and low-pressure cutouts are closed. The HPCO and LPCO are closed if primary line voltage is present at the contactor coil terminals.

3. Verify line voltage is present at the contactor coil.

4. Verify the contactor contacts are closed and line voltage is present across all lines.

5. Refer to compressor diagnostics.

6. Replace the control board.

Be sure Steps 1-5 were followed thoroughly. Intermittent problems are not usually related to the control board.

6-26

Part No. 80-1206-3

Section 6 Electrical System

COMPRESSOR ELECTRICAL DIAGNOSTICS

The compressor will not start or will trip repeatedly on overload.

Check Resistance (Ohm) Values

NOTE: Compressor windings can have very low ohm values. Use a properly calibrated meter.

Perform the resistance test after the compressor cools. The compressor dome should be cool enough to touch (below 120°F/49°C) to assure that the overload is closed and the resistance readings will be accurate.

SINGLE PHASE COMPRESSORS

1. Disconnect power from the condensing unit and remove the wires from the compressor terminals.

2. The resistance values must be within published guidelines for the compressor. The resistance values between C and S and between C and R, when added together, should equal the resistance value between S and R.

3. If the overload is open, there will be a resistance reading between S and R, and open readings between C and S and between C and R. Allow the compressor to cool, then check the readings again.

THREE PHASE COMPRESSORS

1. Disconnect power from the condensing unit and remove the wires from the compressor terminals.

Determine if the Compressor is Seized

Check the amp draw while the compressor is trying to start.

COMPRESSOR DRAWING LOCKED ROTOR

The two likely causes of this are:

• Defective starting component

• Mechanically seized compressor

To determine which you have:

1. Install high and low side gauges.

2. Try to start the compressor.

3. Watch the pressures closely.

A. If the pressures do not move, the compressor is

seized. Replace the compressor.

B. If the pressures move, the compressor is turning

slowly and is not seized. Check the capacitors and start relay.

COMPRESSOR DRAWING HIGH AMPS

The continuous amperage draw on start-up should not be near the maximum fuse size indicated on the serial tag.

The voltage when the compressor is trying to start must be within ±10% of the nameplate voltage.

2. The resistance values must be within published guidelines for the compressor. The resistance values between L1 and L2, between L2 and L3, and between L3 and L1 should all be equal.

3. If the overload is open, there will be open readings between L1 and L2, between L2 and L3, and between L3 and L1. Allow the compressor to cool, then check the readings again.

Check Motor Windings to Ground

Check continuity between all three terminals and the compressor shell or copper refrigeration line. Scrape metal surface to get good contact. If continuity is present, the compressor windings are grounded and the compressor should be replaced.

Part No. 80-1206-3 6-27

Electrical System Section 6

Diagnosing Start Components

If the compressor attempts to start, or hums and trips the overload protector, check the start components before replacing the compressor.

CAPACITOR

• Visual evidence of capacitor failure can include a bulged terminal end or a ruptured membrane. Do not assume a capacitor is good if no visual evidence is present.

• A good test is to install a known good substitute capacitor.

• Use a capacitor tester when checking a suspect capacitor. Clip the bleed resistor off the capacitor terminals before testing.

RELAY

The relay has a set of contacts that connect and disconnect the start capacitor from the compressor start winding. The contacts on the relay are normally closed (start capacitor in series with the start winding). The relay senses the voltage generated by the start winding and opens the contacts as the compressor motor starts. The contacts remain open until the compressor is deenergized.

Warning

Disconnect electrical power to the condensing unit before proceeding.

Relay Operation Check

1. Disconnect wires from relay terminals.

2. Verify the contacts are closed. Measure the resistance between terminals 1 and 2. No continuity indicates open contacts. Replace the relay.

3. Check the relay coil. Measure the resistance between terminals 2 and 5. Not resistance indicates an open coil. Replace the relay.

6-28

Part No. 80-1206-3

QuietQube® Tubing Schematic

Q0600C/Q0800C/Q1000C

Section 7

Refrigeration System

Condensing Unit

SUCTION

SHUT-OFF

VALV E

SUCTION LINE

FILTER

ACCUMULATOR

S TRAP

REQUIRED

21’ OR

GREATER

RISE

COMPRESSOR

HEAD

PRESSURE

CONTROL

VALV E

Ice Machine Head Section

CONDENSER

LIQUID LINE

SHUT-OFF

VALV E

EVAPORATOR

HEAT EXCHANGER

TXV

CO OL VA P OR VA LV E

LLSV

DRIER

CHECK VALVE

RECEIVER

SERVICE

VALV E

RECEIVER

SV3099

Part No. 80-1206-3 7-1

Refrigeration System Section 7

IB0600C/IB0800C/IB1000C/SU1000C

Condensing Unit

SUCTION LINE

S TRAP

REQUIRED

21’ OR

GREATER

RISE

FILTER

ACCUMULATOR

COMPRESSOR

HEAD

PRESSURE

CONTROL

VALV E

CONDENSER

SUCTION

SHUT-OFF

VALV E

LLSV

DRIER

Ice Machine Head Section

HEAT EXCHANGER

RECEIVER

SERVICE

VALV E

COOL VAPOR VALVE

RECEIVERS

TXV

CHECK VALVE

EVAPORATOR

LIQUID LINE

SHUT-OFF

VALV E

SV3098

7-2

Part No. 80-1206-3

Section 7 Refrigeration System

Q1400C/QDUALC

Condensing Unit

SUCTION

SHUT-OFF

VALV E

SUCTION FILTER

ACCUMULATOR

S TRAP

REQUIRED

21’ OR

GREATER

RISE

COMPRESSOR

HEAD

PRESSURE

CONTROL

VALV E

CONDENSER

Ice Machine Head Section

CVD1476 ONLY

WATER REGULATING

VALV E

CVD1476 ONLY

CONDENSER WATER

OUTLET

LIQUID LINE

SHUT-OFF

VALV E

HEAT EXCHANGER

LLSV

DRIER

RECEIVER

SERVICE

VALV E

EVAPORATOR

COOL

VAP OR

VALV E

TXV

RECEIVER

COOL

VAP OR

VALV E

EVAPORATOR

CHECK VALVE

SV3097

Part No. 80-1206-3 7-3

Refrigeration System Section 7

Refrigeration System Diagnostics

GENERAL

Verify the water and electrical systems are functioning properly before diagnosing the refrigeration system or it’s components.

A dirty evaporator increases the length of the harvest cycle and will cause the ice machine to shut off on safety limit #2. All Manitowoc ice machines must have their evaporator(s) cleaned first, if safety limit #2 is in memory.

REFRIGERATION SYSTEM OPERATION

Freeze Cycle

The compressor sends high pressure, high temperature gas to the condenser.

Air-Cooled Models fan cycle control cut in set point and the condenser fan motor(s) energizes. The condenser removes heat and the refrigerant condenser to a high pressure liquid. The head pressure control valve will modulate to maintain the correct head pressure and refrigerant temperature.

Water-Cooled Models modulates from the bypass position to the non-bypass position as the head pressure exceeds its set point. The condenser removes heat and the refrigerant condenses to a high pressure liquid. The water regulating valve will modulate to maintain the correct head pressure and refrigerant temperature.

- Discharge pressure will exceed the

- The head pressure control valve

The refrigerant enter the ice machine head section and is store in the receiver. Liquid refrigerant leaves the receiver through a dip tube and passes through the line drier and liquid line solenoid valve. The refrigerant then passes through the heat exchanger where the liquid is sub-cooled before delivery to the TXV. The liquid refrigerant passes through the expansion valve orifice and enters the evaporator as a low pressure saturated vapor. As the refrigerant leaves the evaporator and passes through the heat exchanger absorbing additional heat from the liquid line. The suction vapor returns to the condensing unit, passes through the suction accumulator and enters the compressor.

Harvest Cycle

The head pressure control valve bypasses the condenser and sends compressor discharge gas directly to the receiver. The discharge gas keeps the receiver warm and the refrigerant pressure up as liquid refrigerant is boiled off the receiver. Vapor from the top of the receiver flows through the cool vapor valve and condenses in the evaporator. The change of state of the refrigerant from vapor to liquid releases the heat necessary for the harvest cycle. The refrigerant returns to the condensing unit and enters the suction accumulator. Vapor refrigerant is returned to the compressor.

7-4

Part No. 80-1206-3

Section 7 Refrigeration System

Suction Accumulator Operation

Liquid refrigerant collects in the suction accumulator during the harvest cycle and is removed during the freeze cycle. The liquid refrigerant is returned to the compressor through a screen and orifice in the suction accumulator J tube. Passing the liquid through the orifice causes a pressure drop; the liquid flashes to a vapor and creates a refrigeration affect. It is normal to see frost on the accumulator, suction line and compressor suction port in the freeze cycle. The suction accumulator empties within the first 6 minutes of the freeze cycle. When the refrigeration affect ends (liquid refrigerant has been removed), the suction line between the accumulator and compressor will increase in temperature. The suction line temperature increases 20 plus degrees 2 minutes after the liquid has been removed. The time needed to remove the liquid refrigerant will vary with the ambient temperature and the length of the harvest cycle. Higher ambient temperatures = shorter harvest cycles, faster removal of liquid refrigerant from the accumulator and greater suction line temperature increases.

Refrigerant Charge

Refrigerant charge on QuietQube® ice machines is very important. Overcharged or undercharged machines will normally fail in the harvest cycle (produces even sheets of ice, but will not harvest).

• Undercharged ice machines run out of liquid refrigerant in the receiver during harvest. This increases the harvest cycle time and results in a safety limit #2 failure.

• Overcharged ice machines sub cool the liquid refrigerant in the receiver during the freeze cycle. resulting in a refrigerant boil off rate in the harvest cycle that is too low. This increases the harvest cycle time and results in a safety limit #2 failure.

• When you are replacing refrigeration system components, verify refrigerant charge is correct by weighing amount recovered. Incorrect refrigerant charge will result in component misdiagnosis.

Part No. 80-1206-3 7-5

Refrigeration System Section 7

BEFORE BEGINNING SERVICE

Ice machines may experience operational problems only during certain times of the day or night. A machine may function properly while it is being serviced, but malfunctions later. Information provided by the user can help the technician start in the right direction, and may be a determining factor in the final diagnosis.

Ask these questions before beginning service:

• When does the ice machine malfunction? (night, day, all the time, only during the freeze cycle, etc.)

• When do you notice low ice production? (one day a week, every day, on weekends, etc.)

• Can you describe exactly what the ice machine seems to be doing?

• Has anyone been working on the ice machine?

• Is anything (such as boxes) usually stored near or on the ice machine which could obstruct airflow around the machine?

• During “store shutdown,” is the circuit breaker, water supply or air temperature altered?

• Is there any reason why incoming water pressure might rise or drop substantially?

ICE PRODUCTION CHECK

The amount of ice a machine produces directly relates to the operating water and air temperatures. This means an ice machine in a 70°F (21.2°C) room with 50°F (10.0°C) water produces more ice than the same model ice machine in a 90°F (32.2°C) room with 70°F (21.2°C) water.

1. Determine the ice machine operating conditions: Air temp. entering condenser: _______ ° Air temp. around ice machine: _______ ° Water temp. entering sump trough: _______ °

2. Refer to the appropriate 24 Hour Ice Production Chart. Use the operating conditions determined in Step 1 to find published 24 hour ice production: ______

3. Perform an actual ice production check. Use the formula below.

__________

Freeze Time

1440

Minutes in 24

Hours

__________

Weight of One

Harvest

+ __________

Harvest Time

÷ __________

Total Cycle Time

x __________

Cycles Per Day

= __________

Total Cycle Time

= __________

Cycles Per Day

= __________

Actual 24 Hour Ice

Production

Important

Times are in minutes.

Example: 1 min., 15 sec. converts to 1.25 min. (15 seconds ÷ 60 seconds = .25 minutes)

Weights are in pounds.

Example: 2 lb., 6 oz. converts to 2.375 lb. (6 oz. ÷ 16 oz. = .375 lb.)

Weighing the ice is the only 100% accurate check. However, if the ice pattern is normal and the

1/8" thickness is maintained, the ice slab weights listed with the 24 Hour Ice Production Charts may be used.

4. Compare the results of step 3 with step 2. Ice production is normal when these numbers match closely. If they match closely, determine if:

• another ice machine is required.

• more storage capacity is required.

7-6

• relocating the existing equipment to lower the

load conditions is required.

Contact the local Manitowoc distributor for information on available options and accessories.

Part No. 80-1206-3

Section 7 Refrigeration System

INSTALLATION/VISUAL INSPECTION CHECKLIST WATER SYSTEM CHECKLIST

A water-related problem often causes the same

Possible Problem Corrective Action

Ice machine is not level Level the ice machine Condenser is dirty Clean the condenser Water filtration is plugged (if

used) Water drains are not run

separately and/or are not vented

Line set is improperly installed

Install a new water filter

Run and vent drains according to the Installation Manual

Reinstall according to the Installation Manual

symptoms as a refrigeration system component malfunction.

Example: A water dump valve leaking during the freeze cycle, a system low on charge, and a starving TXV have similar symptoms.

Water system problems must be identified and eliminated prior to replacing refrigeration components.

Possible Problem Corrective Action

Water area (evaporator) is dirty

Water inlet pressure not between 20 and 80 psi

Incoming water temperature is not between 35°F (1.7°C) and 90°F (32.2°C).

Water filtration is plugged (if used)

Water dump valve leaking during the freeze cycle

Vent tube is not installed on water outlet drain

Hoses, fittings, etc., are leaking water

Water fill valve is stuck open Clean/replace as needed Water is spraying out of the

sump trough area Uneven water flow across the

evaporator Water is freezing behind the

evaporator Plastic extrusions and

gaskets are not secured to the evaporator

Water does not flow over the evaporator (not trickle) immediately after the prechill

Clean as needed

Install a water regulator valve or increase the water pressure

If too hot, check the hot water line check valves in other store equipment

Install a new water filter

Clean/replace dump valve as needed

See Installation Instructions

Repair/replace as needed

Stop the water spray

Clean the ice machine

Correct the water flow

Remount/replace as needed

Clean/replace water level probe as needed

Part No. 80-1206-3 7-7

Refrigeration System Section 7

ICE FORMATION PATTERN

Evaporator ice formation pattern analysis is helpful in ice machine diagnostics.

Analyzing the ice formation pattern alone cannot diagnose an ice machine malfunction. However, when this analysis is used along with Manitowoc’s Refrigeration System Operational Analysis Table, it can help diagnose an ice machine malfunction.

Improper ice formation can be caused by any number of problems.

Example: An ice formation that is “extremely thin at the evaporator outlet” could be caused by a hot water supply, a dump valve leaking water, a faulty water fill valve, a low refrigerant charge, etc.

Important

Keep the water curtain in place while checking the ice formation pattern to ensure no water is lost.

Evaporator Tubing Routing

Q0600C/IB0600C/Q0800C/IB0800C/Q1400C/QDUALC

Routing of the tubing on the back of the evaporator determines the ice fill pattern failure mode. The evaporator outlet tubing does not exit directly at the top of the evaporator, but exits several inches below the top of the evaporator. Extremely Thin at the Evaporator Outlet will first be visible several inches below the top of the evaporator. Extremely Thin at the Evaporator Inlet will first be visible at the bottom of the evaporator.

OUTLET

IB1000C ONLY

Tubing routing for the IB1000C evaporator is different. The evaporator outlet is at the bottom of the evaporator. Extremely Thin at the Evaporator Outlet will first be visible at the bottom and then the right side of the evaporator. Extremely Thin at the Evaporator Inlet will first be visible several inches above the bottom of the evaporator.

INLET

OUTLET

SV3101

Thin at Outlet

SV3102

SV3103

Thin at Inlet

1. Normal Ice Formation

Ice forms across the entire evaporator surface.

At the beginning of the freeze cycle, it may appear that more ice is forming at the evaporator inlet, than at the evaporator outlet. At the end of the freeze cycle, ice formation at the outlet will be close to, or just a bit thinner than, ice formation at the inlet. The dimples in the cubes at the outlet of the evaporator may be more pronounced than those at the inlet. This is normal.

The ice thickness probe must be set to maintain the ice bridge thickness at approximately 1/8". If ice forms uniformly across the evaporator surface, but does not reach 1/8" in the proper amount of time, this is still considered normal.

INLET

7-8

SV1576

Thin at Outlet

Refer to Ice Thickness Probe Adjustment.

INLET

SV1575

Thin at Inlet

Part No. 80-1206-3

Manitowoc Ice QR0670C Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual