Manitowoc SN20 Installation, Use & Care Manual
Nugget ice machines
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- Installation, use & care manual (44 pages)
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Summary of Contents for Manitowoc SN20
- Page 1 Manitowoc SN12, SN20 Model Nugget Ice Machines Installation, Use & Care Manual This manual is updated as new information and models are released. Visit our website for the latest manual. www.manitowocice.com America’s #1 Selling Ice Machine Part Number 000005544 12/09...
- Page 2 Safety Notices Read These Before Proceeding: As you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this manual. ! Caution Disregarding the notices may lead to serious injury and/ Proper installation, care and maintenance are or damage to the equipment.
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Page 3: Table Of Contents
Cleaning and Sanitizing ......... . . Manitowoc’s Cleaning Technology ........ - Page 4 Table of Contents (continued) THIS PAGE INTENTIONALLY LEFT BLANK Part Number 000005544 12/09...
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Page 5: General Information
Model Numbers Accessories This manual covers the following models: MANITOWOC CLEANER AND SANITIZER Manitowoc Ice Machine Cleaner and Sanitizer are available in convenient 16 oz. (473 ml) and 1 gal (3.78 l) Touchless Sensor Lever Activated bottles. These are the only cleaner and sanitizer Activated approved for use with Manitowoc products. -
Page 6: Model/Serial Number Location
Model/Serial Number Location These numbers are required when requesting The model and serial number are listed on the OWNER information from your local Manitowoc distributor, WARRANTY REGISTRATION CARD. They are also service representative, or Manitowoc Foodservice. listed on the MODEL/SERIAL NUMBER DECAL affixed Record the model and serial number of your ice machine to the ice machine head section and condensing unit. -
Page 7: Flake/Chiplet/Nugget Commercial Ice Machine Warranty
General Information Flake/Chiplet/Nugget Commercial Ice Machine Warranty Manitowoc Ice, Inc. (hereinafter referred to as the "COMPANY") warrants for a period of twentyfour months from the installation date (except as limited below) that new Flake/Chiplet ice machines manufactured by the COMPANY shall... -
Page 8: Residential Ice Machine Limited Warranty
To secure prompt and continuing warranty service, this Manitowoc, WI 54221-1720 warranty registration card must be completed and sent Telephone: 920-682-0161 Fax: 920-683-7585 to Manitowoc within thirty (30) days from the sale date. www.manitowocice.com Complete the registration card and send it to Manitowoc. Part Number 000005544 12/09... -
Page 9: Ice Machine Dimensions
The drain can be routed out the rear or bottom of dispenser. SN12 & SN20 AIR COOLED ICE MACHINES • The location must not obstruct airflow through or around the ice machine. Airflow is in the left side and out the top. -
Page 10: Electrical Service
VOLTAGE Important If you are installing a Manitowoc water filter system, The maximum allowable voltage variation is ±10% of the refer to the Installation Instructions supplied with the rated voltage on the ice machine model/serial number filter system for ice making water inlet connections. - Page 11 Section 2 Installation Instructions WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS ! Caution Plumbing must conform to state and local codes. Tubing Size Up to Ice Location Water Temperature Water Pressure Ice Machine Fitting Machine Fitting 45°F (6°C) Min. 20 psi (137.9 kPA) Min. 3/8"...
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Page 12: Before Starting The Ice Machine
Installation Instructions Section 2 Before Starting the Ice Machine Installation Checklist All Manitowoc ice machines are factory-operated and adjusted before shipment. Normally, new installations do Checklist Item not require any adjustment. To ensure proper operation, Is the Ice Machine level? -
Page 13: Component Identification
Section 3 Ice Machine Operation Section 3 Ice Machine Operation Component Identification ICE MACHINE HEAD SECTION WIPER ICE CHUTE HALL EFFECT COVER SWITCH COVER WATER RESERVOIR WATER RESERVOIR STRAINER GEAR MOTOR CHUTE SELECTOR DAMPER SWITCH BLUE LIGHT CONTROL CHUTE BOARD COVER CHUTE THUMBSREWS... -
Page 14: Operational Checks
Section 3 Operational Checks GENERAL Ice Production Manitowoc ice machines are factory-operated and Allow the ice machine to produce ice for 15 minutes adjusted before shipment. Normally, a newly installed ice before testing the dispense mechanism. This will insure machine does not require any adjustment. -
Page 15: Sequence Of Operation
Section 3 Ice Machine Operation Sequence of Operation 15 MINUTE TIME DELAY INITIAL STARTUP The 15 minute delay must be expired before the Applying power and/or moving the toggle switch from gearmotor or compressor will energize. OFF to ICE will start a 15 minute delay period. This delay period can not be overridden. -
Page 16: Removal From Service/Winterization
Ice Machine Operation 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... -
Page 17: Cleaning And Sanitizing
Dust and dirt can be removed from exterior surfaces with cleaning and sanitizing. mild household dish-washing detergent and warm water. Wipe dry with a clean, soft cloth. Manitowoc Ice Machine Cleaner and Sanitizer are the only products approved for use in Manitowoc ice machines. ! Caution... -
Page 18: Manitowoc's Cleaning Technology
Maintenance Section 4 Manitowoc’s Cleaning Technology Manitowoc Flake/Nugget Ice Machines include This Manitowoc Ice Machine has three separate technology that allows the initiation and completion of a cleaning procedures. cleaning cycle at the flip of a switch. This cycle will... - Page 19 Ice machine cleaner is used to remove lime scale or other mineral deposits. It is not used to remove algae or slime. Refer to “Sanitizing Procedure” for removal of algae and slime. To initiate a cleaning cycle using Manitowoc’s Cleaning Technology use the following procedure.
- Page 20 Step 6 Refer to chart and add the correct amount of procedures on pages 4-5 & 4-6. cleaner for your model ice machine. Model Amount of Cleaner SN12 SN20 12 ounce (355 ml) Add Cleaner To Evaporator Here WATER ICE /...
- Page 21 Step 12 Place the toggle switch in the OFF position Part Number and refer to sanitizing procedure. 000000084 NOTE: Discard all ice produced during the cleaning SN12 SN20 2 ounces (60 ml) 32 ounces (1 liter) process. Cleaning and sanitizing must be performed on Add Solution To Evaporator Here adjacent surface areas not contacted by the water distribution system.
- Page 22 Amount of Water Sanitizer Step 9 The ice machine will freeze and discharge the sanitizing solution into the bin. Allow the cycle to run for SN12 SN20 2 ounces (60 ml) 3 gallons (11 liters) 15 minutes. NOTE: Discard all ice produced during the sanitizing process.
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Page 23: Component Disassembly For Cleaning/Sanitizing
Section 4 Maintenance Component Disassembly For Cleaning/Sanitizing The ice machine must be disassembled cleaned and 6. Remove front cover. sanitized every six months. A. Lift up on front cover. ! Caution B. Pull forward to disengage keyhole slots. 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. - Page 24 Maintenance Section 4 8. Lift out ice damper. 11. Loosen ice chute hose clamp. 12. Disconnect ice chute drain. Ice Chute Hose Clamp Chute Drain 9. Lift out ice strainer ramp. 13. Lift up on ice chute to remove. The ice chute must be removed before the bin cover can be removed.
- Page 25 Section 4 Maintenance 15. Remove three thumbscrews, then remove bin cover. 18. Remove ice dispensing wheel by lifting straight out. Remove Thumbscrews 16. Remove agitator bar and ice breaker on SN020. NOTE: Bar must be reassembled by inserting front edge into the paddle wheel, then lowering the back edge (rounded 90 angle) to prevent water leakage into the compressor compartment.
- Page 26 Maintenance Section 4 21. While components are soaking clean all foodzone CLEANING THE CONDENSER surfaces of the bin. Rinse all areas thoroughly with clean water. Warning Disconnect electric power to the ice machine and the remote condenser at the electric service switch before cleaning the condenser.
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Page 27: Checklist
Section 5 Before Calling For Service Section 5 Before Calling For Service Checklist If a problem arises during operation of your ice machine, follow the checklist below before calling for service. Routine adjustments and maintenance procedures are not covered by the warranty. Problem Possible Cause To Correct... -
Page 28: Safeguard Feature
Before Calling For Service Section 5 Safeguard Feature In addition to standard safety controls, your Manitowoc ice machine features built-in SafeGuards. The ice machine will stop when conditions arise that would cause major component failure. GENERAL SafeGuards The ice machine control board has safety features to 1. -
Page 29: Safeguard Modes
Section 5 Before Calling For Service SafeGuard Modes NO WATER During the Freeze cycle if the water sensing switch WATER LEVEL SENSOR OPEN: opens or remains open for more than 20 continuous The ice machine will wait for the water level sensor to seconds, close. - Page 30 Before Calling For Service Section 5 NO ICE PRODUCTION The damper door (HES1) fails to open and close at least NO ICE PRODUCTION: once during the first 8 minutes of compressor run time The ice machine will start another 60 minute Standby Mode.
- Page 31 2110 S. 26th Street, P.O. Box 1720 2110 S. 26th Street, P.O. Box 1720 Manitowoc, Wisconsin 54221-1720 USA Manitowoc, Wisconsin 54221-1720 USA Representative of Manitowoc Ice. Inc.: Representative of Manitowoc Ice. Inc.: Engineering Manager, (Printed name) Engineering Manager, (Printed name)
- Page 32 © 2009 Manitowoc Continuing product improvements may necessitate change of specifications without notice. Part Number 000005544 12/09 Manitowoc Foodservice 2110 South 26th Street, P.O. Box 1720 Manitowoc, WI 54221-1720, USA Ph: 920-682-0161 Fax: 920-683-7589 Visit us online at: www.manitowoc.com...
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