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Hoshizaki KM D-355MAJ Instruction Manual
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Hoshizaki KM D-355MAJ Instruction Manual

Hoshizaki KM D-355MAJ Instruction Manual

Low-profile modular crescent cuber
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Instruction Manual
Low-Profile Modular Crescent Cuber
Models
KM D-355MAJ, MWJ
KMD-505MAJ, MWJ, MRJZ
KMD-705MAJ, MWJ, MRJZ
hoshizakiamerica.com
Issued: 7-15-2024

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Summary of Contents for Hoshizaki KM D-355MAJ

  • Page 1 Instruction Manual Low-Profile Modular Crescent Cuber Models KM D-355MAJ, MWJ KMD-505MAJ, MWJ, MRJZ KMD-705MAJ, MWJ, MRJZ hoshizakiamerica.com Issued: 7-15-2024...
  • 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 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 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 Minimum Circuit 20 AMPS 20 AMPS 20 AMPS Ampacity Design Pressure 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.
  • Page 7 20 AMPS 20 AMPS 20 AMPS Ampacity Design Pressure HI-467PSI LO-250PSI HI-427PSI LO-250PSI HI-467PSI LO-250PSI Refrigerant 404A 2 LB. 12.1 OZ. 404A 1 LB. 11.3 OZ. 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC-9FZ: 10 LB. 11.1 OZ.
  • Page 8 B. Dimensions/Connections 1. Air-Cooled Models (MAJ) Units: mm [in.] Side Rear Model Shown: KMD-505MAJ Model Shown: KMD-505MAJ Bottom KMD-355MAJ KMD-705MAJ KMD-505MAJ 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, Model Shown: KMD-505MAJ sides, and top for proper air circulation and ease of maintenance and/or...
  • Page 9 2. Water-Cooled Models (MWJ) Units: mm [in.] Rear Side KMD-355/505MWJ Model Shown: KMD-505MWJ Model Shown: KMD-505MWJ KMD-355MWJ KMD-705MWJ Rear KMD-505MWJ KMD-705MWJ A 559 [22] 659 [26] 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 10 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 11 4. Remote Condenser Unit URC-5FZ (use with KMD-505MRJZ) Units: mm [in.] Rear NOTICE URC-5FZ 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-505MRJZ 7,900 BTU/hr ease of maintenance and/or service should they be required.
  • Page 12 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 13 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 14 • 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 15 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 16 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 17 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 18 • 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 19 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 20 2. Water-Cooled Condenser a) KMD-355/505MWJ (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 21 (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 22 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 23 (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 24 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 25 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 26 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 27 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 28 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 29 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 30 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 31 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 32 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 33 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 34 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 35 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 36 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 37 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 38 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 39 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 40 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 41 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 42 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 43 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 44 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 45 B. Cleaning and Sanitizing Instructions The icemaker must be cleaned and sanitized at least once a year. More frequent cleaning and sanitizing may be required in some water conditions. WARNING • To prevent injury to individuals and damage to the icemaker, do not use ammonia type cleaners.
  • Page 46 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. 7) Move the control switch to the "ON" position (1 short beep occurs, then 3 seconds later 1 long beep occurs).
  • Page 47 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 48 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 49 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 50 618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A7897-010...

This manual is also suitable for:

Km d-355mwjKmd-505majKmd-505mwjKmd-505mrjzKmd-705majKmd-705mwj ... Show all