Hoshizaki KM-350MAJ Instruction Manual
Modular crescent cuber
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- Service manual (89 pages)
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Summary of Contents for Hoshizaki KM-350MAJ
- Page 1 Instruction Manual Modular Crescent Cuber Models KM-350MAJ, MWJ KM-520MAJ, MWJ, MRJ KM-660MAJ, MWJ, MRJ hoshizakiamerica.com Issued: 7-23-2018 Revised: 4-17-2019...
- 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;...
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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.
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Page 6: Specifications
HI - 467PSI LO - 250PSI HI - 427PSI LO - 250PSI HI - 467PSI LO - 250PSI Refrigerant 404A 1 LB 10.8 OZ. 404A 12.7 OZ. R404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC-5F: 4 LB. 2.7 OZ. -
Page 7: Km-660M_J
HI - 467PSI LO - 250PSI HI - 467PSI LO - 250PSI HI - 467PSI LO - 250PSI Refrigerant 404A 1 LB. 9.8 OZ. 404A 15.2 OZ. R404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC-5F: R404A 4 LB. 2.7 OZ. -
Page 8: Dimensions/Connections
B. Dimensions/Connections 1. Air-Cooled Models (MAJ) Units: mm [in.] Rear Side Bottom NOTICE • Allow 6" (15 cm) clearance at rear, sides, and top for proper air circulation and ease of maintenance and/or service should they be required. • The storage bin opening must match the bottom opening as in the illustration. -
Page 9: Water-Cooled Models (Mwj)
2. Water-Cooled Models (MWJ) Units: mm [in.] Rear Side Bottom NOTICE • Allow 6" (15 cm) clearance at rear, sides, and top for proper air circulation and ease of maintenance and/or service should they be required. • The storage bin opening must match the bottom opening as in the illustration. -
Page 10: Remote Models (Mrj)
3. Remote Models (MRJ) Units: mm [in.] Side Rear Bottom NOTICE • Allow 6" (15 cm) clearance at rear, sides, and top for proper air circulation and ease of maintenance and/or service should they be required. • The storage bin opening must match the bottom opening as in the illustration. -
Page 11: Remote Condenser Unit Urc-5F (Use With Km-520Mrj Or Km-660Mrj)
4. Remote Condenser Unit URC-5F (use with KM-520MRJ or KM-660MRJ) Units: mm [in.] NOTICE Allow 24" (61 cm) clearance at front and rear for proper air circulation and ease of maintenance and/or service should they be required. URC-5F Heat of Rejection Icemaker AT 90°F (32°C) Model... -
Page 12: Installation And Operating Instructions
II. Installation and Operating Instructions WARNING • The icemaker must be installed in accordance with applicable national, state, and local codes and regulations. • Failure to install, operate, and maintain the icemaker 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 models must be connected to an appropriate remote condenser unit. The remote condenser units listed below are 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: 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 15: 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 16: 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 17 1. Icemaker Icemaker Water Minimum Icemaker Icemaker Drain Minimum Icemaker Condensation Supply Inlet Water Supply Line Size Outlet Drain Line Size Drain Outlet 1/2" Female Pipe 1/4" Nominal ID 3/4" Female Pipe 3/4" Nominal 3/8" OD Hard Thread (FPT) Copper Water Tubing or Thread (FPT) ID Hard Pipe or Tube...
- Page 18 2. Water-Cooled Condenser a) 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 19 b) 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...
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Page 20: Installation Of Remote Condenser Unit For Remote Models
G. Installation of Remote Condenser Unit for Remote Models 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 21: Checks Before Installation
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' (20 m) Hoshizaki Up to 66' (20 m) Maximum 100' (30.5 m) Remote Hoshizaki Condenser... -
Page 22: Line Set Installation
5. Line Set Installation Precharged factory line sets, available as optional equipment from Hoshizaki America, are recommended. For details, see "II.G.5.a) Factory Line Set Installation." Field fabricated line sets are allowed. For details, see "II.G.5.b) Field Fabricated Line Set Installation."... - Page 23 2) Insulate the two copper tubes separately. 3) Install Parker quick connect couplings on each end. OS-QUICK, a universal quick connect coupling kit available as optional equipment from Hoshizaki America, is recommended. NOTICE! Before brazing, remove the Schrader valve core from the access port.
- Page 24 7) Connect the refrigerant lines to the appropriate male fittings on the remote condenser unit first and then at the icemaker. Make a proper connection as follows: a. Remove the protective covers from the male fitting and female coupling. b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire male fitting, including O-ring, diaphragm, and threads, before making the connection.
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Page 25: 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 26: 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 27: Final Checklist
H. 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 dispenser unit/ice 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) Is there at least 6"... -
Page 28: Startup
I. Startup WARNING All parts are factory-adjusted. Improper adjustments may adversely affect safety, performance, component life, and warranty coverage. NOTICE • If the icemaker is turned off, wait for at least 3 minutes before restarting the icemaker to prevent damage to the compressor. •... - Page 29 7) After the water tank has drained, reconnect the pump tubing. 8) Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning. 9) Go to "II.J. Bin Control Check and Setting" and confirm bin control controller setting and bin control operation.
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Page 30: Bin Control Check And Setting
For Standard Ice Storage Bin application, no adjustment needed, continue to step 3. See Fig. 18. For Hoshizaki DB and DM Dispenser Units, adjust the bin control controller to setting 2, then continue to step 3. See Fig. 18. For Coca-Cola Freestyle Dispenser Unit, adjust the bin control controller to setting 3, ®... - Page 31 For Standard Ice Storage Bins, Hoshizaki DB and DM Dispenser Units, and Coca-Cola Freestyle Dispenser Units ® Application Bin Control Ice Level Settings Bin Control Setting Ice Detection Distance From Bin Control Lens Standard Ice Storage Bins 254 mm (10") (Factory Default) Do not adjust dispensers to this setting.
- Page 32 For Non-Hoshizaki Dispenser Units Bin Control Ice Level Settings Bin Control Setting Ice Detection Distance From Bin Control Lens Do not adjust dispensers to this setting. 254 mm (10") (Factory Default) 305 mm (12") 406 mm (16") 508 mm (20") 610 mm (24")
- Page 33 3) Move the mode switch on the control box to the "ICE" position, then move the control switch to the "ON" position. Turn on the power supply, and allow the icemaker to operate. 4) Confirm the control board "BC OPEN/CLOSED" LED is off (bin empty) and the bin control controller "LED 1"...
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Page 34: 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 35: 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 10.4 fl. oz. (308 ml) of Hoshizaki "Scale Away" into the water tank. Replace the front insulation panel. - Page 36 Sanitizing 10) Confirm the mode switch is in the "CLEAN" position, then move the control switch to the "ON" position (1 short beep occurs, then 3 seconds later 1 long beep occurs). Replace the front panel. The water tank drains and then fills. 11) When the control board starts beeping (2 beep sequence), remove the front panel.
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Page 37: Preparing The Appliance For Periods Of Non-Use
IV. Preparing the Appliance for Periods of Non-Use NOTICE • When storing the icemaker for an extended time or in sub-freezing temperatures, follow the instructions below to prevent damage. • To prevent damage to the water pump seal, do not leave the control switch in the "PUMP"... - Page 38 3. On water-cooled models, 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.
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Page 39: 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 40 618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A4658-011...
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