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Hoshizaki DKM-500BAH Instruction Manual

Crescent cube icemaker / dispenser
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Hoshizaki
Hoshizaki America, Inc.
"A Superior Degree
of Reliability"
www.hoshizaki.com
Crescent Cube Icemaker / Dispenser
Models
DKM-500BAH
DKM-500BWH
INSTRUCTION MANUAL
™
Issued: 3-24-2006
Revised: 8-10-2010

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Summary of Contents for Hoshizaki DKM-500BAH

  • Page 1 Hoshizaki Hoshizaki America, Inc. Crescent Cube Icemaker / Dispenser Models DKM-500BAH DKM-500BWH INSTRUCTION MANUAL “A Superior Degree of Reliability” www.hoshizaki.com ™ Issued: 3-24-2006 Revised: 8-10-2010...
  • Page 2 Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, write, or send an e-mail message to the Hoshizaki Technical Support Department for assistance. HOSHIZAKI AMERICA, INC.

  • Page 3: Table Of Contents

    CONTENTS Important Safety Information ....................4 I. Specifications ........................5 A. Nameplate Rating ......................5 1. DKM-500BAH ......................5 2. DKM-500BWH ......................6 B. Dimensions/Connections ....................7 1. DKM-500BAH ......................7 2. DKM-500BWH ......................8 II.

  • Page 4: Important Safety Information

    Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, or damage to the unit. WARNING Indicates a hazardous situation which could result in death or serious injury. CAUTION Indicates a situation which could result in damage to the unit.

  • Page 5: Specifications

    I. Specifications A. Nameplate Rating 1. DKM-500BAH HOSHIZAKI ICE MAKER MODEL NUMBER DKM-500BAH SERIAL NUMBER AC SUPPLY VOLTAGE 115-120/60/1 AMPERES 15 AMPS DESIGN PRESSURE HI-467PSI LO-170PSI REFRIGERANT 404A 2.0 LB. MOTOR-COMPRESSOR THERMALLY PROTECTED, NOT INTENDED FOR OUTDOOR USE! Hoshizaki America, Inc.

  • Page 6: Dkm-500Bwh

    2. DKM-500BWH HOSHIZAKI ICE MAKER MODEL NUMBER DKM-500BWH SERIAL NUMBER AC SUPPLY VOLTAGE 115-120/60/1 AMPERES 12 AMPS DESIGN PRESSURE HI-427PSI LO-230PSI REFRIGERANT 404A 1 LB. 2 OZ. MOTOR-COMPRESSOR THERMALLY PROTECTED, NOT INTENDED FOR OUTDOOR USE! Hoshizaki America, Inc. Peachtree City, GA www.hoshizaki.com...

  • Page 7: Dimensions/Connections

    B. Dimensions/Connections 1. DKM-500BAH...

  • Page 8: Dkm-500Bwh

    2. DKM-500BWH...

  • Page 9: Installation And Operating Instructions

    II. Installation and Operating Instructions A. Checks Before Installation WARNING 1. This icemaker must be installed in accordance with applicable national, state, and local regulations. 2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after installation. Make sure that none have fallen into the storage bin.

  • Page 10: How To Remove Panels

    B. How to Remove Panels See Fig. 1 • Front Panel: Remove the screw, lift up and slightly towards you. Disconnect the connector from the control box. • Top Panel: Lift up at front slightly, push rearward, and lift off. • Side Panels (R1 and L1): Remove the top panel. Remove the screw. Slide forward slightly, and lift off. • Side Panels (lower): Remove the top panel. Remove the screws and lift off. • Instulation Panel: Remove the top panel. Remove side panel (L1), then lift up and out. Top Panel Insulation Panel Side Panel (R1) Side Panel (L1) Front Panel Side Panel (Lower) Connector Side Panel (Lower) Fig.

  • Page 11: Location

    C. Location CAUTION 1. This icemaker is not intended for outdoor use. Normal operating ambient temperature should be within 45°F to 100°F (7°C to 38°C); Normal operating water temperature should be within 45°F to 90°F (7°C to 32°C). Operation of the icemaker, for extended periods, outside of these normal temperature ranges may affect icemaker performance.

  • Page 12: Electrical Connection

    E. Electrical Connection WARNING 1. Electrical connection must meet national, state, and local electrical code requirements. Failure to meet these code requirements could result in death, electric shock, serious injury, fire, or severe damage to equipment. 2. This unit requires an independent power supply. See the nameplate for proper voltage and breaker/fuse size.

  • Page 13: Water Supply And Drain Connections

    10 PSIG. Do not run the icemaker until the proper water pressure is reached. • A plumbing permit and services of a licensed plumber may be required in some areas. • External filters, strainers, or softeners may be required depending on water quality. Contact your local Hoshizaki distributor for recommendations. • Water supply pressure should be a minimum of 10 PSIG and a maximum of 113 PSIG. If the pressure exceeds 113 PSIG, the use of a pressure reducing valve is required. • The icemaker drain line, storage bin drain line, and water-cooled condenser drain line (if applicable) must be run separatley.

  • Page 14: Icemaker

    3/4" FPT Vent Tube Minimum 3/4" Nominal Hard Pipe Vent Tube Separate piping to approved drain. Leave a 2-inch (5-cm) vertical air gap between the end of each pipe and the drain. 2-inch (5-cm) air gap Storage Bin Drain Outlet 3/4" FPT Floor Drain Minimum 3/4" Nominal Hard Pipe Fig. 3 DKM-500BAH...

  • Page 15: Water-Cooled Condenser

    2. Water-Cooled Condenser a) Connection to an Open-Drain System • Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" nominal copper water tubing is recommended for the condenser water supply line. • A condenser water supply line shut-off valve and drain valve should be installed. • Condenser drain outlet is 3/8" FPT. A minimum of 3/8" nominal hard pipe is recommended for the condenser drain line. • In some areas, a back flow preventer may be required in the cooling water circuit. • In order to maintain the proper high side pressure, the condenser water supply inlet temperature should not drop below 45°F (7°C) and the condenser drain outlet temperature must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker installation is complete, confirm the condenser drain outlet temperature 5 minutes after a freeze cycle starts.

  • Page 16: B) Connection To A Closed-Loop System

    b) Connection to a Closed-Loop System • Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" nominal copper water tubing is recommended for the condenser water supply line. • Condenser return outlet is 3/8" FPT. A minimum of 3/8" nominal copper water tubing is recommended for the condenser return line. • Shut-off valves and drain valves should be installed at both the condenser water supply inlet and condenser return outlet. • The water supply to the condenser should not drop below 4 GPM. • The pressure differential between the condenser water supply inlet and condenser return outlet must be no less than 10 PSIG. • When using a glycol blend, the solution mixture should be less than 30% glycol. • In order to maintain the proper high side pressure, the condenser water supply inlet temperature should not drop below 45°F (7°C) and the condenser return outlet temperature must be in the 104°F to 115°F (40°C to 46°C) range.

  • Page 17: Final Checklist

    G. Final Checklist WARNING CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after installation. Make sure that none have fallen into the storage bin. 1) Is the icemaker level? 2) Is the icemaker in a site where the ambient temperature is within 45°F to 100°F (7°C to 38°C) and the water temperature within 45°F to 90°F (7°C to 32°C) all year around? 3) On air-cooled model, is there at least 12" (30 cm) clearance on the left side and 6" (15 cm) clearance at rear, right side, and top of the icemaker for proper air circulation...

  • Page 18: Startup

    H. Startup WARNING 1. All parts are factory-adjusted. Improper adjustments may adversely affect safety, performance, component life, and warranty coverage. 2. If the icemaker is turned off, wait for at least 3 minutes before restarting the icemaker to prevent damage to the compressor. 3.
  • Page 19 13) Clean the storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning. 14) Reconnect the bin control connector. 15) Plug the icemaker back in. Move the control switch to the "ICE" position to start the automatic icemaking process. 16) To confirm bin control operation, press and hold the bin control's actuator paddle during the first 5 minutes of the freeze cycle. The icemaker should shut down in approximately 5 seconds.

  • Page 20: Cleaning And Maintenance

    3. The storage bin is for ice use only. Do not store anything else in the storage bin. A. Cleaning and Sanitizing Instructions Hoshizaki recommends cleaning and sanitizing this unit at least once a year. More frequent cleaning and sanitizing, however, may be required in some existing water conditions.
  • Page 21 6) Replace the front panel in its correct position and allow the icemaker to drain for 2 minutes. 7) Remove the front panel and move the control switch to the "OFF" position. Unplug the icemaker from the electrical outlet. 8) Disconnect the bin control connector. Remove the 3 thumbscrews securing the bin cover, and remove the bin cover with the bin control attached. 9) In bad or severe water conditions, clean the float switch assembly as described below.

  • Page 22: Sanitizing Procedure - Icemaker

    7) Remove the front panel and move the control switch to the "OFF" position. Unplug the icemaker from the electrical outlet. Proceed to "3. Cleaning Procedure – Storage Bin". 3. Cleaning Procedure – Storage Bin 1) Dilute 5 fl. oz. (148 ml) of Hoshizaki "Scale Away" with 1 gal. (3.8 l) of warm water. 2) Make sure the control switch is in the "OFF" position and the icemaker is unplugged. 3) Remove the grill and chute from the front panel. 4) Remove the shutter and spout extension as follows: a. Remove the snap pin fitted to the shutter shaft. Shift the shaft to the left, pull out the right side and slide out.

  • Page 23: Maintenance

    5) Plug the icemaker back in. Move the control switch to the "ICE" position to start the automatic icemaking process. 6) Reconnect the connector from the front panel to the control box and replace the front panel in its correct position. Control Connector Thumbscrew Storage Bin Fig. 7 Agitator Bin Cover Snap Pin Control Shutter Chute Connector Front Bin Spout...

  • Page 24: Preparing The Icemaker For Long Storage

    4. Condenser (air-cooled model only) Check the condenser once a year and clean the coil if required by using a brush or vacuum cleaner. More frequent cleaning may be required depending on location. C. Preparing the Icemaker For Long Storage CAUTION 1.
  • Page 25 2. On water-cooled model, remove the water from the water-cooled condenser: 1) Make sure the control switch is in the "OFF" position and the icemaker is unplugged. 2) Remove the left side panel. 3) Close the condenser water supply line shut-off valve. If connected to a closed loop system, also close the condenser return line shut-off valve. 4) Open the condenser water supply line drain valve.
  • Page 26 HOSHIZAKI AMERICA, INC. 618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A4QA10C...

This manual is also suitable for:

Dkm-500bwh

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