Cornelius NORDIC ELITE Series Owner's Manual
NORDIC ELITE SERIES CUBE ICE MAKER
CNM 300 lb THROUGH 1400 lb CUBERS
OWNER’S MANUAL
Release Date: April 19, 2018
Publication Number: 548000033
Revision Date: December 18, 2018
Revision: B
Visit the Cornelius web site at http://ice.cornelius.com for all your Literature needs.
Notice
RECYCLE
The products, technical information, and instructions contained in this manual are subject to change without notice.
These instructions are not intended to cover all details or variations of the equipment, nor to provide for every possi
ble contingency in the installation, operation or maintenance of this equipment. This manual assumes that the person(s) working on the equipment have been trained and are skilled in working with electrical, plumbing, pneumatic,
and mechanical equipment. It is assumed that appropriate safety precautions are taken and that all local safety and
construction requirements are being met, in addition to the information contained in this manual.
This Product is warranted only as provided in Cornelius’ Commercial Warranty applicable to this Product and is subject to all of the restrictions and limitations contained in the Commercial Warranty.
Cornelius will not be responsible for any repair, replacement or other service required by or loss or damage resulting
from any of the following occurrences, including but not limited to, (1) other than normal and proper use and normal
service conditions with respect to the Product, (2) improper voltage, (3) inadequate wiring, (4) abuse, (5) accident,
(6) alteration, (7) misuse, (8) neglect, (9) unauthorized repair or the failure to utilize suitably qualified and trained per
sons to perform service and/or repair of the Product, (10) improper cleaning, (11) failure to follow installation, operating, cleaning or maintenance instructions, (12) use of “non-authorized” parts (i.e., parts that are not 100%
compatible with the Product) which use voids the entire warranty, (13) Product parts in contact with water or the
product dispensed which are adversely impacted by changes in liquid scale or chemical composition.
Correct Disposal of this Product
This marking indicates that this product should not be disposed with other household wastes throughout the EU. To
prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly
to promote the sustainable reuse of material resources. To return your used device, please use the return and
collection systems or contact the retailer where the product was purchased. They can take this product for
environmental safe recycling.
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Trademarks and Copyrights
This document contains proprietary information and it may not be reproduced in any way without permission from
Cornelius. This document contains the original instructions for the unit described.
CORNELIUS INC
101 Regency Drive
Glendale Heights, IL
Tel: + 1 800-238-3600
Printed in U.S.
Contact Information
To inquire about current revisions of any documentation or assistance with any Cornelius product, contact:
www.cornelius.com
800-238-3600
TABLE OF CONTENTS
SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Alert symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Types of Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Qualified Service Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipping And Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Machine Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Freight Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Inspect Promptly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Visible Loss or Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Concealed Loss or Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
How to use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cornelius Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ambient Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Incoming Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Water Filtration/Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dispenser Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Condenser Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Location Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Calculation Formula . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Remote Condenser Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Roof Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pre-charged Line Set Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Equivalent Run Calculation Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rise: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Drop: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical and Plumbing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
22” CNM SERIES Common Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
30” CNM SERIES Common Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
48” CNM SERIES Common Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operation of the CNM Series Cuber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Freeze Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Harvest Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
CNM Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
START-UP PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
General Maintenance Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CLEANING INSTRUCTION FOR CORNELIUS CNM SERIES ICE MACHINES . . . . . . . . . . . . . . . . . 19
Chemicals for Descaling and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleaning Stainless Steel and Aluminum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Winterizing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
CNM SERIES ICE MAKER FREQUENTLY ASKED QUESTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Installation Guide and Owner’s Manual
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DANGER
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WARNING
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CAUTION
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WARNING
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SAFETY INSTRUCTIONS
SAFETY OVERVIEW
• Read and follow ALL SAFETY INSTRUCTIONS in this manual and any warning/caution labels on the unit (decals,
labels or laminated cards).
• Read and understand ALL applicable OSHA (Occupational Safety and Health Administration) safety regulations before
operating this unit.
SAFETY ALERT SYMBOL
This is the safety alert symbol. When you see this in the manual or on the unit, be alert to the
potential of personal injury or damage to the unit.
Types of Alerts
Indicates an immediate hazardous situation which if not avoided WILL result in serious injury, death or
equipment damage.
Indicates a potentially hazardous situation which, if not avoided, COULD result in serious injury, death,
or equipment damage.
Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate
injury or equipment damage.
SAFETY TIPS
• Carefully read and follow all safety messages in this manual and safety signs on the unit. - from Rod’s doc
• Keep safety signs in good condition and replace missing or damaged items.
• Learn how to operate the unit and how to use the controls.
•Do not let anyone operate the unit without proper training. This appliance is not intended for use by very young children
or infirm persons without supervision. Young children should be supervised to ensure that they do not play with the
appliance.
• Keep your unit in proper working condition and do not allow unauthorized modifications to the unit.
QUALIFIED SERVICE PERSONNEL
Only trained and certified electrical, plumbing and refrigeration technicians should service this unit.
All wiring and plumbing must conform to National and Local Codes. Failure to comply could result in
serious injury, death or equipment damage.
© 2018, Cornelius Inc. - 1 - Publication Number: 548000033
Installation Guide and Owner’s Manual
WARNING
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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SAFETY PRECAUTIONS
This unit has been specifically designed to provide protection against personal injury. To ensure continued protection
observe the following:
Disconnect power to the unit before servicing, following all lock out/tag out procedures established
by the user. Verify all the power is off to the unit before any work is performed. Failure to disconnect
the power could result in serious injury, death or equipment damage.
Always be sure to keep area around the unit clean and free of clutter. Failure to keep this area clean
may result in injury or equipment damage.
Shipping And Storage
Before shipping, storing, or relocating the unit, the unit must be sanitized and all sanitizing solution
must be drained from the system. A freezing ambient environment will cause residual sanitizing
solution or water remaining inside the unit to freeze resulting in damage to internal components.
Unit Location
• This unit is not designed for use in outdoor locations.
• The appliance must be placed in a horizontal position.
• The appliance is not suitable for installation in an area where a water jet would be used.
Machine Usage
• This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
Publication Number: 548000033 - 2 - © 2018, Cornelius Inc.
Installation Guide and Owner’s Manual
WARNING
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CAUTION
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FREIGHT CLAIMS
Inspect Promptly
This merchandise has been carefully inspected and packed in accordance with the carrier’s packing specifications.
Responsibility for safe delivery has been assumed by the carrier. If loss or damage occurs, you as the consignee must
file a claim with the carrier and hold the container for carrier’s inspection.
Visible Loss or Damage
Any external evidence of loss or damage must be fully described and noted on your freight bill or express receipt and
signed by the carrier’s agent. The claim should be filed on a form available from the carrier.
Concealed Loss or Damage
If loss or damage does not appear until merchandise has been unpacked, make a written request for
inspection by the carrier within 5 days of the delivery date, then file a claim on a form from the carrier.
FILE CLAIMS WITHOUT DELAY
DO NOT RETURN DAMAGED GOODS TO CORNELIUS.
How to use this Manual
Cornelius provides this manual as an aid to the service technician in installation and maintenance of the Nordic
Series cube ice machines. Do not attempt to perform installation, start-up or maintenance unless you have read and
fully understood this manual.
NOTE: Cornelius ice-makers and dispensers are not approved for outdoor installation
IMPORTANT: Air and water cooled ice machines are hermetically sealed and contain fluorinated greenhouse
gas R404A (GWP 3922).
For a Service Provider,
Please contact the Cornelius Service Department at 800-238-3600 or tech.service@cornelius.com
Keep this manual for future reference
The CNM Series Service Parts Manuals are available separately.
Always disconnect electrical power and shut off water supply whenever maintenance or repairs are performed on the
ice machine and related equipment.
Always wear protective eye wear whenever maintenance or repairs are performed on the ice machine and related
equipment.
Cornelius Warranty
Every Cornelius ice maker is backed by a warranty that provides both parts and labor coverage. To view the warranty
details, register products, or check your warranty status visit the “Warranty and Water Filter Registration” page on
ice.cornelius.com
© 2018, Cornelius Inc. - 3 - Publication Number: 548000033
Installation Guide and Owner’s Manual
WARNING
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INSTALLATION GUIDELINES
For proper operation of the ice machine, the following installation guidelines must be followed by a qualified refrigeration technician. Failure to do so may result in loss of production capacity, premature part failures, and may void all
warranties.
Reference the installation parameters prior to installing the machine. Cornelius assumes no responsibility for improperly installed equipment. Excessive time required for service or time for units requiring removal for service of inaccessible equipment will be the sole responsibility of the equipment owner.
This appliance is not to be used by persons (including children) with reduced physical, sensory, or mental capabilities,
or lack or experience and knowledge, unless they have been given supervision or instruction. Children shall be super
vised and are not to play with the appliance.
AMBIENT OPERATING TEMPERATURE
Minimum operating temperature: 50°F (10°C)
Maximum operating temperature: 100°F (38°C) (60 Hz.), 110°F (43°C) (50 Hz.).
NOTE: Cornelius ice-makers and dispensers are not approved for outdoor installation
INCOMING WATER SUPPLY
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Connect to unheated potable water supply only (see Electrical and Plumbing diagrams for line sizing).
Minimum incoming water temperature: 40°F (4.5°C)
Maximum incoming water temperature:100°F (38°C)
Minimum incoming water pressure: 20 psi (1.4 bar, 0.138MPa)
Maximum incoming water pressure: 80 psi (5.5 bar, 0.552MPa)
NOTE: If water pressure exceeds 80 psi (5.5 bar), a water pressure regulator must be installed.
All water supply lines must be installed per local codes. Use 3/8 inch O.D. minimum on air cooled machines. On water
cooled machines 3/8 inch O.D. minimum tubing must be run to the condenser. The water supply for the machine can
“T” off from the condenser line using 3/8 inch O.D. minimum tubing. Make 2 coils of extra tubing so that the machine
can be pulled away from the wall if service is needed.
NOTE: This equipment must be installed with adequate backflow protection to comply with applicable federal
state and local codes.
WATER FILTRATION/TREATMENT
A water filter system should be installed with the ice machine. Refer to Cornelius water filter specification sheet.
Reverse Osmosis (RO) water can be very acidic and can attack the evaporator and other metal in the ice machine.
Because the RO process removes all minerals and metals from the water it can promote the faster growth of microbial
mold and slime. If RO water is used, it is recommended the water pH is verified to be a neutral 7.0 to minimize the cor
rosive effects. Incorrect cleaners, sanitizers, and RO water that does not have a neutral pH could void the machine’s
warranty.
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DRAINS
All drain lines must be installed per local codes. Flexible tubing is not recommended. Route bin drain, purge drain and
water condenser drain individually to a floor drain. The use of condensate pumps for draining water is not recom
mended. Cornelius assumes no responsibility for improperly installed equipment.
Publication Number: 548000033 - 4 - © 2018, Cornelius Inc.
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