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Manitowoc Ice QM20 manual

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Table of contents for the manual

  • Page 1

    QM20 Series Ice Machine Installation, Use and Care, and Service Manual Thank you for selecting a Manitowoc Ice Machine, the dependability le ader in ice making equipment and related products. With proper care and m aintenance, your new Manitowoc Ice Machine will provide you with many years of reliable and economical performance. We reserve the righ[...]

  • Page 2

    Safety Notices When using or servicing a QM Series Ice Machine, be sure to pay close atten tion 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 Text in a Warning box alerts you to a potentia[...]

  • Page 3

    Table of Contents i Table of Contents Section 1 - General Information Model/Serial Number Location ................................................................................................... ................... 1-1 Owner Warranty Registration Card ..............................................................................................[...]

  • Page 4

    Table of Contents ii THIS PAGE INTENTIONALLY LEFT BLANK[...]

  • Page 5

    Section 1 General Information 1-1 Section 1 General Information Model/Serial Number Location Record the model and serial number of your ice machine in the space prov ided below. These numbers are required when requesti ng information from your Manitowoc distributor, service rep resentative, or the factory. The model and serial number are listed on [...]

  • Page 6

    General Information Section 1 1-2 Owner Warranty Registration Card GENERAL The packet containing this manual also includes warranty information. Warrant y coverage begins the day your new ice machine is installed. Important Complete and m ail the OWNER W ARRANTY REGISTRATION CARD as soon as possible to validate the installation date. If you do not [...]

  • Page 7

    Section 1 General Information 1-3 Residential Warranty Coverage WHAT DOES THIS LIMITED WARRANTY COVER ? Subject to the exclusions and limitations below, Manitowo c Ice, Inc. (“Ma nitowoc”) warrants to t he original consumer that any new ice machine manufact ured by Manitowoc (t he “Product”) shall be free of de f ects in mat erial or workm [...]

  • Page 8

    1-4 General Information Section 1 INTENTIONALLY LEFT BLANK[...]

  • Page 9

    Section 2 Installation Instructions 2-1 Section 2 Installation Instructions Dimensions SV1717 20.54 cm (8.09”) 3.73 cm (1.47”) 19.05 cm (7.50”) 1.90 cm ± 0.63 cm (0.75” ± 0.25”) 15.72 cm (6.19”) 38.10 cm (15.00”) 76.20 cm (30.00”) 55.93 cm (22.02”) 20.54 cm (8.09”) 3.58 cm (1.41”)[...]

  • Page 10

    Installation Instructions Section 2 2-2 Location of Ice Machine The location selected for th e ice machine must meet the following criteria. If a ny of these criteria are not met, select another location. • The location must be indoors. • The location must be free of airborne and other contaminants. • The air temperature must be at least 1 0 [...]

  • Page 11

    Section 2 Installation Instructions 2-3 Electrical Service GENERAL WARNING All wiring must conform to local, state and national codes. WARNING Never use an extension co rd. If an outlet is not within reach of the ice m achine’s power cord, have a proper amperage outlet wi red closer to t he ice machine. Voltage Phase Air-Cooled Cycle Electrical R[...]

  • Page 12

    Installation Instructions Section 2 2-4 ELECTRICAL CORD STRAIN RELIEF To prevent strain at the electrical connection inside the ice machine, an electrica l cord str ain re lief device must be installed on the rear panel of the ice machine. 1. Disassemble the strain relief devic e into its three components. 2. Install the cord holder th rough the op[...]

  • Page 13

    Section 2 Installation Instructions 2-5 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 s ystem [...]

  • Page 14

    Installation Instructions Section 2 2-8 Typical Water Supply and Drain Line Sizing and Connections SV1708 ICE MAKING WATER INLET TUBING 0.95 cm (3/8”) MINI MUM INSIDE DIAMET ER ICE MAKING/BIN WATER DRAIN TUBING 1.59 cm (5/8”) MINI MUM INSIDE DIAMET ER ROUTE ICE MAKING WATER INLET TUBIN G THROUGH ICE MACHINE AND CONNECT TO WATER INLE T VALVE[...]

  • Page 15

    Section 3 Ice Machine Operation 3-1 Section 3 Ice Machine Operation Sequence of Operation Control Board Relays Ice Making Sequence of Operation 1 Compressor 2 Hot Gas Valve Water Fill Valve 3 Water Pump Fan Motor Length of “ON” Time Start-Up 1 1. Water Purge Off On Off 2.9 Minutes (175 Seconds) 2. Refrigeration System Start-Up On On Off 5 Secon[...]

  • Page 16

    Ice Machine Operation Section 3 3-2 Ice Thickness Adjustment QM-20 dice ice cube formati on is slightly different from our previous models. Manitow oc ice machines have a unique cube shape. It is normal to have a dimple in the ice c ube (a concave indentation in the cube). Ice cubes from the QM-20 may appear to have a slightly larger dimple than ot[...]

  • Page 17

    4-1 Section 4 Maintenance Section 4 Maintenance Interior Cleaning and Sanitizing GENERAL You are responsible for maintaining the ic e machine in accordance with the inst ructions in this m anual. Maintenance procedures are not covered by the warranty. Clean and sanitize the ice machine every six m onths for efficient operation. If the ice machine r[...]

  • Page 18

    Maintenance 4-2 Section 4 Step 4 Wait until water f lows over the evaporator (about three minutes) then add the proper amount of Manitowoc Ice Machine Clean er to the water trough. Model Amount of Cleaner QM20 30 ml (1 ounce) Step 5 Wait until the clean cycle is com plete (approximately 45 minutes) then place the toggle switch in the OFF position, [...]

  • Page 19

    4-3 Section 4 Maintenance Parts Removal Overview WAT ER TROUGH OVERFLOW TUBE WAT ER DISTRIBUTION TUBE WATER PUMP AND BRACKET A SSEMBLY WAT ER P UM P OUTLET HOSE EVAPORATOR A SSEMBLY (REMAINS IN PLA CE)[...]

  • Page 20

    Maintenance 4-4 Section 4 WAT ER P UM P POWER CORD OUTLET 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 ho le to prevent water leakage during normal operation. Removing the Overflow[...]

  • Page 21

    4-5 Section 4 Maintenance Step 7 Mix a solution of cleaner and warm water. Depending on the amount of mineral buildup, a larger quantity of solution may be required. Use the ratio in the table below to mix enough solution to thoroughly clean all parts. Solution Type Water Mixed with Cleaner 4L. (1 gall) 500 ml (1 6 oz) cleaner Step 8 Use ½ of the [...]

  • Page 22

    Maintenance 4-6 Section 4 WARNING Disconnect electric power to th e ice machine at the electric switch box before proceed ing. Step 17 Repeat step 6 to remove parts for hand sanitizing. Step 18 Mix a solution of sanitiz er and warm water. Solution Type Water Mixed With Sanitizer 23 L. (6 gal ) 120 ml (4 oz) saniti zer Step 19 Use 1/2 of the saniti [...]

  • Page 23

    4-7 Section 4 Maintenance CLEANING THE CONDENSER WARNING Disconnect electric power to th e ice machine at the electric service switch before cleani ng the condenser. Air-Cooled Condenser A dirty condenser restrict s airflow, resulting in excessively high operating temperatures. This reduces ice production and s hortens component life. Clean the con[...]

  • Page 24

    4-8 Maintenance Section 4 Removal from Service/Winterization GENERAL Special precautions must be taken if the ice m achine is to be removed from se rvice for an extended period of time or exposed to ambient temperatures of 0 ° C (32 ° F) or below. CAUTION If water is allowed to rem ain in the ice machine in freezing temperatures, severe damage to[...]

  • Page 25

    Section 5 Before Calling for Service 5-1 Section 5 Before Calling for Service Checklist If a problem arises during operation of your ice machine, follow the checklis t below before calling for service. Problem Possible Cause To Correct Ice machin e does not operate. No electrical power to th e ice machine. Replace the fuse/res et the breaker/turn o[...]

  • Page 26

    Before Calling for Service Section 5 5-2 Problem Possible Cause To Correct Ice machine produ ces shallow or in co mplete c ubes, or the ice fill pa ttern on the evaporator is incomplete . Water le vel is low. Be sure the overflow t ube is fully seated to prevent water leak age. See page 4-5. Water inlet valve filt er screen is dirty. Remove the wat[...]

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    MANITOWOC ICE, INC. 2110 South 26th Street P.O. Box 1720 Manitowoc, WI 54221-1720 Phone: ( 920) 68 2-0161 Fax: ( 920) 683-7 585 Web Site - www.manitowocice. com © 2006 Manitowoc Ice, Inc.[...]