Hoshizaki KMD-505MAJ Instruction Manual
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Hoshizaki KMD-505MAJ Instruction Manual

Hoshizaki KMD-505MAJ Instruction Manual

Low-profile modular crescent cuber
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Instruction Manual
Low-Profile Modular Crescent Cuber
Models
KMD-505MAJ, MWJ, MRJZ
KMD-705MAJ, MWJ, MRJZ
hoshizakiamerica.com
Issued: 3-25-2024

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Summary of Contents for Hoshizaki KMD-505MAJ

  • Page 1 Instruction Manual Low-Profile Modular Crescent Cuber Models KMD-505MAJ, MWJ, MRJZ KMD-705MAJ, MWJ, MRJZ hoshizakiamerica.com Issued: 3-25-2024...
  • Page 2 Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, send an e-mail message, or write to the Hoshizaki Technical Support Department for assistance. Phone: 1-800-233-1940; (770) 487-2331 Fax: 1-800-843-1056;...

  • Page 3: Table Of Contents

    IMPORTANT This manual should be read carefully before the appliance is installed and operated. Read the warnings and guidelines contained in this manual carefully as they provide essential information for the continued safe use and maintenance of the appliance. Retain this manual for any further reference that may be necessary. CONTENTS Important Safety Information ....................

  • 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, damage to the appliance, or damage to property. WARNING Indicates a hazardous situation which could result in death or serious injury.
  • Page 5 WARNING, continued • Children should be properly supervised around the appliance. • Do not climb, stand, or hang on the appliance or allow children or animals to do so. Serious injury could occur or the appliance could be damaged. • Do not use combustible spray or place volatile or flammable substances near the appliance.

  • Page 6: Specifications

    HI-467PSI LO-250PSI HI-427PSI LO-250PSI HI-467PSI LO-250PSI Refrigerant 404A 1 LB. 8.7 OZ. 404A 15.9 OZ. 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC-5FZ: 4 LB. 11.8 OZ. 2. KMD-705M_J(Z) Model Number KMD-705MAJ KMD-705MWJ KMD-705MRJZ AC Supply Voltage 115/60/1...

  • Page 7: Dimensions/Connections

    B. Dimensions/Connections 1. Air-Cooled Models (MAJ) Units: mm [in.] Side Rear Model Shown: KMD-505MAJ Model Shown: KMD-505MAJ Bottom KMD-505MAJ KMD-705MAJ A 559 [22] 659 [26] B 540 [21-1/4] 639 [25-1/8] C 538 [21-1/8] 637 [25-1/8] NOTICE • Allow 6" (15 cm) clearance at rear,...

  • Page 8: Water-Cooled Models (Mwj)

    2. Water-Cooled Models (MWJ) Units: mm [in.] Rear Side KMD-505MWJ Model Shown: KMD-505MWJ Model Shown: KMD-505MWJ KMD-505MWJ KMD-705MWJ Rear A 559 [22] 659 [26] KMD-705MWJ B 540 [21-1/4] 639 [25-1/8] C 538 [21-1/8] 637 [25] D 435 [17-1/8] 488 [19-1/4] E 64 [2-1/2] 60 [2-3/8] F 66 [2-5/8]...

  • Page 9: Remote Models (Mrjz)

    3. Remote Models (MRJZ) Units: mm [in.] Rear Side Model Shown: KMD-505MRJZ Model Shown: KMD-505MRJZ KMD-505MRJZ KMD-705MRJZ Bottom A 559 [22] 659 [26] B 510 [20-1/8] 609 [24] C 538 [21-1/8] 639 [25-1/8] D 409 [16-1/8] 480 [18-7/8] E 49 [1-7/8] 46 [1-3/4] F 84 [3-1/4] 87 [3-1/2]...

  • Page 10: Remote Condenser Unit Urc-5Fz (Use With Kmd-505Mrjz)

    4. Remote Condenser Unit URC-5FZ (use with KMD-505MRJZ) Units: mm [in.] Rear URC-5FZ Heat of Rejection NOTICE AT 90°F (32°C) Allow 24" (61-cm) clearance at front Icemaker Model WT 70°F (21°C) and rear for proper air circulation and KMD-505MRJZ 7,900 BTU/hr ease of maintenance and/or service should they be required.

  • Page 11: Remote Condenser Unit Urc-9Fz (Use With Kmd-705Mrjz)

    5. Remote Condenser Unit URC-9FZ (use with KMD-705MRJZ) Units: mm [in.] Rear NOTICE URC-9FZ Heat of Rejection AT 90°F (32°C) Allow 24" (61 cm) clearance at front Icemaker Model WT 70°F (21°C) and rear for proper air circulation and KMD-705MRJZ 9,500 BTU/hr ease of maintenance and/or service should they be required.

  • Page 12: Installation And Operating Instructions

    II. Installation and Operating Instructions WARNING • The appliance must be installed in accordance with applicable national, state, and local codes and regulations. • Failure to install, operate, and maintain the appliance in accordance with this manual will adversely affect safety, performance, component life, and warranty coverage and may result in costly water damage.

  • Page 13: Checks Before Installation

    • NOTICE! Remote model must be connected to an appropriate remote condenser unit. The remote condenser unit listed below is recommended. Connection to a different remote condenser unit will void the warranty unless Hoshizaki approves a different remote condenser unit for your specific application. For further details, contact your local Hoshizaki distributor.

  • Page 14: How To Remove Panels

    C. How to Remove Panels See Fig. 1 • Front Panel: Remove the screw. Lift up and towards you. • Top Panel: Lift up at front slightly, push rearward, then lift off. • Right Side Panel: Remove the screw. Slide outward to the right slightly, then push rearward and remove.

  • Page 15: Setup

    2) Position the dispenser unit/ice storage bin in its permanent location. 3) If required, install an adapter kit or top kit. Contact your local Hoshizaki distributor for recommendations. 4) Level the dispenser unit/ice storage bin in both the left-to-right and front-to-rear directions.

  • Page 16: Electrical Connection

    E. Electrical Connection WARNING For All Models • Electrical connection must be hard-wired and 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 damage. •...

  • Page 17: Water Supply And Drain Connections

    • External filters, strainers, or softeners may be required depending on water quality. Contact your local Hoshizaki Certified Service Representative or local Hoshizaki distributor for recommendations. • A plumbing permit and services of a licensed plumber may be required in some areas.

  • Page 18: Icemaker

    1. Icemaker Icemaker Water Minimum Icemaker Icemaker Drain Minimum Icemaker Supply Inlet Water Supply Line Size Outlet Drain Line Size 1/2" Female Pipe 1/4" Nominal ID 3/4" Female Pipe 3/4" Nominal Thread (FPT) Copper Water Tubing or Thread (FPT) ID Hard Pipe or Equivalent Equivalent •...

  • Page 19: Water-Cooled Condenser

    2. Water-Cooled Condenser a) KMD-505MWJ (1) Connection to an Open Drain System Condenser Water Minimum Condenser Condenser Drain Minimum Condenser Supply Inlet Water Supply Line Size Outlet Drain Line Size 1/2" Female Pipe 1/4" Nominal ID Copper 3/8" Female Pipe 1/4"...
  • Page 20 (2) Connection to a Closed Loop System Condenser Water Minimum Condenser Condenser Minimum Condenser Supply Inlet Water Supply Line Size Return Outlet Return Line Size 1/2" Female Pipe 1/4" Nominal ID Copper 3/8" Female Pipe 1/4" Nominal ID Copper Thread (FPT) Water Tubing or Equivalent Thread (FPT) Water Tubing or Equivalent...
  • Page 21 b) KMD-705MWJ (1) Connection to an Open Drain System Condenser Water Minimum Condenser Condenser Drain Minimum Condenser Supply Inlet Water Supply Line Size Outlet Drain Line Size 1/2" Female Pipe 1/4" Nominal ID Copper 3/8" Female Pipe 1/4" Nominal ID Hard Pipe Thread (FPT) Water Tubing or Equivalent Thread (FPT)
  • Page 22 (2) Connection to a Closed Loop System Condenser Water Minimum Condenser Condenser Minimum Condenser Supply Inlet Water Supply Line Size Return Outlet Return Line Size 1/2" Female Pipe 1/4" Nominal ID Copper 3/8" Female Pipe 1/4" Nominal ID Copper Thread (FPT) Water Tubing or Equivalent Thread (FPT) Water Tubing or Equivalent...

  • Page 23: Installation Of Remote Condenser Unit

    G. Installation of Remote Condenser Unit WARNING • Installation of remote condenser unit must be performed by properly trained and EPA-certified service personnel. • The remote condenser unit must be installed in accordance with applicable national, state, and local codes and regulations. •...

  • Page 24: Checks Before Installation

    2. Checks Before Installation 1) Remove the shipping carton, tape, and packing material. 2) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the fan blade moves freely. 3. Setup 1) Assemble two sets of legs using the legs, bolts, and nuts provided. See Fig. 11. 2) Position one of the plates provided between a set of legs and the remote condenser unit, then secure the legs to the remote condenser unit with the bolts and nuts provided.

  • Page 25: Line Set Size And Refrigerant Charge

    Mixing of refrigerants will result in improper operation and possible damage to the refrigeration system. Line Set Size and Refrigerant Charge Line Set Line Set Greater than 66 Feet (20 m) Hoshizaki Up to 66 Feet (20 m) Maximum 100 Feet (30.5 m) Remote Hoshizaki Condenser...

  • Page 26: Line Set Installation

    5. Line Set Installation WARNING • R-404A itself is not flammable at atmospheric pressure and temperatures up to 176°F (80°C). • R-404A itself is not explosive or poisonous. However, when exposed to high temperatures (open flames), R-404A can be decomposed to form hydrofluoric acid and carbonyl fluoride both of which are hazardous.
  • Page 27 Icemaker 3) Remove the Schrader valve cores from the icemaker liquid line and discharge line service valves. 4) KMD-505MRJZ: a) Remove one of the straight copper tubes from the icemaker accessory bag and place it in the icemaker liquid line service valve. See Fig. 12. b) Place the line set liquid line copper tube into the straight copper tube.
  • Page 28 Condenser Unit 8) Remove the Schrader valve cores from the condenser unit liquid line and discharge line service valves. 9) KMD-505MRJZ: a) Remove the remaining straight copper tube from the icemaker accessory bag and place it in the condenser unit liquid line service valve. See Fig. 13. b) Place the line set liquid line copper tube into the straight copper tube.
  • Page 29 15) After checking the line set for leaks, vent the nitrogen charge from the line set. 16) Evacuate the line set. Allow the vacuum pump to pull down to a 29.9" Hg vacuum. Evacuating period depends on pump capacity. 17) After evacuation, charge each line set tube with R-404A vapor to a pressure of 15 to 30 PSIG.
  • Page 30 b) Line Set Greater Than 66' (20 m) Up to a Maximum of 100' (30.5 m) 1) Route the factory line set or appropriate size copper tubing. When field fabricating, insulate the copper tubes separately. Leave a service loop behind the icemaker to allow the icemaker to be pulled out for service.
  • Page 31 Condenser Unit 8) Remove the Schrader valve cores from the condenser unit liquid line and discharge line service valves. 9) Place the line set liquid line copper tube into the condensing unit liquid line service valve. 10) KMD-505MRJZ: a) Using a 1/2"×3/8" copper slip reducer (not provided), place the 3/8" end of the copper slip reducer into the condensing unit discharge line service valve (3/8").
  • Page 32 17) After evacuation, add the appropriate amount of additional R-404A. See "II.G.4 Line Set Size and Refrigerant Charge" for details. Hoshizaki Technical Support is available at 1-800-233-1940 for recommendations. 18) Close both gauge manifold valves. 19) Open the icemaker service valves first, then open the remote condenser unit service valves.

  • Page 33: Electrical Connection

    6. Electrical Connection WARNING • 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 damage. • To reduce the risk of electric shock, make all remote condenser unit connections before connecting the icemaker power supply.

  • Page 34: Stacking Remote Condenser Unit

    3) Install a ground wire from the icemaker fan motor junction box to the remote condenser unit junction box. Use wire of an appropriate gage and outdoor rating. 4) Install line and neutral wires from the fan motor leads in the icemaker fan motor junction box to the leads in the remote condenser unit junction box.

  • Page 35: Final Checklist

    H. Final Checklist 1. Pre-Startup 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) Is there at least 6"...

  • Page 36: Post-Startup

    2. Post-Startup WARNING CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after installation. Make sure that none have fallen into the dispenser unit/ice storage bin. 1) Has the bin control been set to the proper setting for the application? 2) Has the bin control operation been confirmed? 3) Are all components, fasteners, and thumbscrews securely in place? 4) Has the end user been given the instruction manual, and instructed on how to operate...

  • Page 37: Startup

    2) Confirm the correct control board bin control setting required for your application and adjust as detailed below. Application Bin Control Setting Reference Standard Ice Storage Bins (Factory Default) See Fig. 18 Hoshizaki DB and DM Dispensers Coca-Cola Freestyle Dispensers ® Non-Hoshizaki Dispensers Measurement Required See Fig. 19...
  • Page 38 For Standard Ice Storage Bins, Hoshizaki DB and DM Dispenser Units, and Coca-Cola Freestyle Dispenser Units ® Application Bin Control Ice Level Settings Shutdown Distance From Bin Control Lens Bin Control Setting (Restart is 4 in. (102 mm) below shutdown distance) Standard Ice Storage Bins 304 mm (12")
  • Page 39 For Non-Hoshizaki Dispenser Units Bin Control Ice Level Settings Shutdown Distance From Bin Control Lens Bin Control Setting (Restart is 4 in. (102 mm) below shutdown distance) 304 mm (12") (Factory Default) Do not adjust dispensers to this setting. 335 mm (13") 416 mm (16 3/8")

  • Page 40: Appliance Startup And Bin Control Check

    2. Appliance Startup and Bin Control Check WARNING • All parts are factory-adjusted. Improper adjustments may adversely affect safety, performance, component life, and warranty coverage. • Make sure the icemaker has been installed as outlined in this manual and that the water supply is on.
  • Page 41 6) 1 min. fill cycle begins. Place an object 5" to 7" (127 to 178 mm) away from the bin control lens. See Fig. 21. 15 sec. later, the icemaker shuts down. Remove the object from the bin control lens. 30 sec. later, the icemaker restarts. For bin control shutdown times per cycle, see the table below.
  • Page 42 14) After the water tank has drained, replace the drain plug in its correct position. 15) Replace the front insulation panel in its correct position. 16) Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning. 17) Move the control switch to the "ON"...

  • Page 43: Maintenance

    III. Maintenance The appliance must be maintained in accordance with the instruction manual and labels provided. Consult with your local Hoshizaki Certified Service Representative about maintenance service. WARNING • Only qualified service technicians should service the appliance. • To reduce the risk of electric shock, do not touch the control switch or mode switch with damp hands.

  • Page 44: Cleaning And Sanitizing Instructions

    5) When the control board starts beeping (2 beep sequence), remove the front panel. Move the control switch to the "OFF" position. 6) Remove the front insulation panel, then pour 17 fl. oz. (503 ml) of Hoshizaki "Scale Away" into the water tank. Replace the front insulation panel.
  • Page 45 9) In bad or severe water conditions, turn off the power supply, then remove, clean (cleaning solution = 5 oz. Hoshizaki "Scale Away" per gallon of warm water), rinse, and replace the cube guide, float switch, water supply tubes, spray tubes, and spray guides;...

  • Page 46: Preparing The Appliance For Periods Of Non-Use

    IV. Preparing the Appliance for Periods of Non-Use NOTICE • When storing the appliance for an extended time or in sub-freezing temperatures, follow the instructions below to prevent damage. • To prevent damage to the water pump, do not leave the control switch in the "PUMP"...
  • Page 47 3. On water-cooled model, remove the water from the water-cooled condenser: 1) Make sure the power supply is off, then remove the front, top, and right side panels. 2) 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.

  • Page 48: Disposal

    V. Disposal The appliance contains refrigerant and must be disposed of in accordance with applicable national, state, and local codes and regulations. Refrigerant must be recovered by properly certified service personnel.
  • Page 49 618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A6877-010...

This manual is also suitable for:

Kmd-505mwjKmd-505mrjzKmd-705majKmd-705mwjKmd-705mrjz

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