Manitowoc QM20 Series Installation, Use And Care, And Service Manual
  1. Manuals
  2. Brands
  3. Manitowoc Manuals
  4. Ice Maker
  5. QM20 Series
  6. Installation, use and care, and service manual

Manitowoc QM20 Series Installation, Use And Care, And Service Manual

Manitowoc ice installation, use and care, and service manual machine qm20
Hide thumbs Also See for QM20 Series:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Technician's Handbook
QM20 Series

Ice Machine

Installation,
Use and Care,
and Service Manual
Thank you for selecting a Manitowoc Ice Machine, the dependability leader in ice making equipment and
related products. With proper care and maintenance, your new Manitowoc Ice Machine will provide you with
many years of reliable and economical performance.
We reserve the right to make product improvements at any time.
Specifications and design are subject to change without notice.
Part Number 000001720
10/06

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the QM20 Series and is the answer not in the manual?

Questions and answers

Related Manuals for Manitowoc QM20 Series

Summary of Contents for Manitowoc QM20 Series

  • Page 1: Ice Machine

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

  • Page 2: Safety Notices

    Read and understand this manual. It contains valuable care and maintenance information. If you encounter problems not covered by this manual, feel free to contact Manitowoc Ice, Inc. We will be happy to provide assistance. Procedural Notices When using or servicing a QM Series Ice Machine, be sure to read the procedural notices in this manual.

  • Page 3: Table Of Contents

    Table of Contents Table of Contents Section 1 - General Information Model/Serial Number Location ... 1-1 Owner Warranty Registration Card... 1-2 Warranty Coverage ... 1-2 Section 2 - Installation Instructions Dimensions... 2-1 Location of Ice Machine ... 2-2 Leveling the Ice Machine... 2-2 Electrical Service...
  • Page 4 Table of Contents THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 5: Section 1 - General Information

    Model/Serial Number Location Record the model and serial number of your ice machine in the space provided below. These numbers are required when requesting information from your Manitowoc distributor, service representative, or the factory. MODEL AND SERIAL NUMBER MODEL NUMBER: ________________________ Section 1 General Information The model and serial number are listed on the...

  • Page 6: Owner Warranty Registration Card

    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 representative or Manitowoc Ice, Inc. if you need further warranty information. PARTS Manitowoc warrants the ice machine against defects...

  • Page 7: Residential Warranty Coverage

    WHO IS COVERED BY THIS LIMITED WARRANTY? This limited warranty only applies to the original consumer of the Product and is not transferable. WHAT ARE MANITOWOC ICE’S OBLIGATIONS UNDER THIS LIMITED WARRANTY? If a defect arises and Manitowoc receives a valid warranty...

  • Page 8: General Information Section

    General Information Section 1 INTENTIONALLY LEFT BLANK...

  • Page 9: Section 2 - Installation Instructions

    Section 2 Installation Instructions Section 2 Installation Instructions Dimensions 38.10 cm (15.00”) 76.20 cm (30.00”) 3.73 cm 3.58 cm (1.47”) (1.41”) 20.54 cm 20.54 cm (8.09”) (8.09”) 15.72 cm (6.19”) 55.93 cm (22.02”) 1.90 cm ± 0.63 cm 19.05 cm (0.75”...

  • Page 10: Location Of Ice Machine

    Ice Machine Heat of Rejection Series Heat of Rejection* Ice Machine Air Conditioning** QM20 1450 * B.T.U./Hour ** Because the heat of rejection varies during the ice making cycle, the figure shown is an average. Ice machines, like other refrigeration equipment, reject heat through the condenser.

  • Page 11: Electrical Service

    Section 2 Electrical Service GENERAL WARNING All wiring must conform to local, state and national codes. WARNING Never use an extension cord. If an outlet is not within reach of the ice machine’s power cord, have a proper amperage outlet wired closer to the ice machine.

  • Page 12: Electrical Cord Strain Relief

    ELECTRICAL CORD STRAIN RELIEF To prevent strain at the electrical connection inside the ice machine, an electrical cord strain relief device must be installed on the rear panel of the ice machine. 1. Disassemble the strain relief device into its three components.

  • Page 13: Water Service/Drains

    Section 2 Water Service/Drains 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.

  • Page 14: Installation Instructions

    Installation Instructions Section 2 ROUTE ICE MAKING WATER INLET TUBING THROUGH ICE MACHINE AND CONNECT TO WATER INLET VALVE ICE MAKING/BIN WATER DRAIN TUBING 1.59 cm (5/8”) MINIMUM INSIDE DIAMETER ICE MAKING WATER INLET TUBING 0.95 cm (3/8”) MINIMUM INSIDE DIAMETER SV1708 Typical Water Supply and Drain Line Sizing and Connections...

  • Page 15: Section 3 - Ice Machine Operation

    Section 3 Sequence of Operation Ice Making Sequence of Compressor Operation Start-Up 1. Water Purge 2. Refrigeration System Start-Up 3. Freeze Cycle 4. Harvest Cycle 5. Auto Shut-Off Initial Start-Up or Start-Up After Automatic Shut-Off INITIAL START-UP OR START-UP AFTER AUTOMATIC SHUT-OFF 1.

  • Page 16: Ice Thickness Adjustment

    Ice Machine Operation Ice Thickness Adjustment QM-20 dice ice cube formation is slightly different from our previous models. Manitowoc ice machines have a unique cube shape. It is normal to have a dimple in the ice cube (a concave indentation in the cube).

  • Page 17: Section 4 - Maintenance

    Interior Cleaning and Sanitizing GENERAL You are responsible for maintaining the ice machine in accordance with the instructions in this manual. Maintenance procedures are not covered by the warranty. 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.
  • Page 18 Maintenance Step 4 Wait until water flows over the evaporator (about three minutes) then add the proper amount of Manitowoc Ice Machine Cleaner to the water trough. Model QM20 Step 5 Wait until the clean cycle is complete (approximately 45 minutes) then place the toggle switch in the OFF position, disconnect power and water supplies to the ice machine.

  • Page 19: Parts Removal Overview

    Section 4 Maintenance Parts Removal Overview WATER DISTRIBUTION TUBE WATER PUMP AND BRACKET ASSEMBLY WATER PUMP OUTLET HOSE OVERFLOW TUBE EVAPORATOR ASSEMBLY (REMAINS IN PLACE) WATER TROUGH...
  • Page 20 Maintenance B. Remove the Overflow Tube • To remove the tube, lift it up while using a slight back and forth motion to loosen it from the drain hole. When installing the tube, be sure it is completely inserted into the drain hole to prevent water leakage during normal operation.
  • Page 21 Step 14 Reapply power and water to the ice machine and place the toggle switch in the WASH position. Step 15 Add the proper amount of Manitowoc Ice Machine Sanitizer to the water trough. Step16 Wait until the sanitize cycle is complete...

  • Page 22: Exterior Cleaning

    Maintenance WARNING Disconnect electric power to the ice machine at the electric switch box before proceeding. Step 17 Repeat step 6 to remove parts for hand sanitizing. Step 18 Mix a solution of sanitizer and warm water. Solution Type Water Sanitizer 23L.

  • Page 23: Cleaning The Condenser

    CLEANING THE CONDENSER WARNING Disconnect electric power to the ice machine at the electric service switch before cleaning the condenser. Air-Cooled Condenser A dirty condenser restricts airflow, resulting in excessively high operating temperatures. This reduces ice production and shortens component life. Clean the condenser at least every six months.

  • Page 24: Maintenance Section

    Removal from Service/Winterization GENERAL Special precautions must be taken if the ice machine is to be removed from service for an extended period of time or exposed to ambient temperatures of 0°C (32°F) or below. CAUTION If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result.

  • Page 25: Section 5 - Before Calling For Service

    Section 5 Checklist If a problem arises during operation of your ice machine, follow the checklist below before calling for service. Problem Ice machine does not operate. Ice machine does not release ice or is slow to harvest. Ice quality is poor (soft or not clear).

  • Page 26: Before Calling For Service

    Before Calling for Service Problem Ice machine produces shallow or incomplete cubes, or the ice fill pattern on the evaporator is incomplete. Low ice capacity. Possible Cause Water level is low. Water inlet valve filter screen is dirty. Water filtration is poor. Hot incoming water.
  • Page 28 MANITOWOC ICE, INC. 2110 South 26th Street P.O. Box 1720 Manitowoc, WI 54221-1720 Phone: (920) 682-0161 Fax: (920) 683-7585 Web Site - www.manitowocice.com ©2006 Manitowoc Ice, Inc.

Table of Contents