Hoshizaki KML-325MAJ Instruction Manual
Low-profile modular crescent cuber
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Summary of Contents for Hoshizaki KML-325MAJ
- Page 1 Instruction Manual Low-Profile Modular Crescent Cuber Models KML-325MAJ, MWJ KML-500MAJ, MWJ KML-700MAJ, MWJ, MRJZ hoshizakiamerica.com Issued: 9-23-2016 Revised: 7-18-2022...
- 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
The nameplate is located on the rear panel. For certification marks, see the nameplate. We reserve the right to make changes in specifications and design without prior notice. 1. KML-325M_J Model Number KML-325MAJ KML-325MWJ AC Supply Voltage 115/60/1 115/60/1 Compressor 115V 6.5RLA 50LRA... -
Page 7: Kml-700M_J(Z)
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. 10.3 OZ. 404A 1 LB. 6.0 OZ. 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC-9FZ: 11 LB. 7.4 OZ. -
Page 8: Dimensions/Connections
B. Dimensions/Connections 1. Air-Cooled Models (MAJ) Units: mm [in.] Rear Side Model Shown: KML-500MAJ Model Shown: KML-500MAJ Bottom KML-325MAJ KML-700MAJ KML-500MAJ A 559 [22] 659 [26] B 515 [20-1/4] 615 [24-1/4] C 505 [19-7/8] 605 [23-7/8] Model Shown: KML-500MAJ NOTICE •... -
Page 9: Water-Cooled Models (Mwj)
2. Water-Cooled Models (MWJ) Units: mm [in.] Rear Side KML-325/500/MWJ Model Shown: KML-500MWJ Model Shown: KML-500MWJ KML-325MWJ KML-700MWJ Rear KML-500MWJ KML-700MWJ A 559 [22] 659 [26] B 515 [20-1/4] 615 [24-1/4] C 505 [19-7/8] 605 [23-7/8] D 403 [15-7/8] 504 [19-7/8] E 55 [2-1/8] NOTICE •... -
Page 10: Remote Models (Mrjz)
3. Remote Models (MRJZ) Units: mm [in.] Rear Side Model Shown: KML-700MRJZ Model Shown: KML-700MRJZ KML-700MRJZ Bottom A 654 [25-3/4] B 610 [24] C 601 [23-5/8] D 399 [15-3/4] E 419 [16-1/2] F 175 [6-7/8] G 100 [3-7/8] H 75 [3] Model Shown: KML-700MRJZ NOTICE •... -
Page 11: Remote Condenser Unit Urc-9Fz (Use With Kml-700Mrjz)
4. Remote Condenser Unit URC-9FZ (use with KML-700MRJZ) 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. Rear URC-9FZ Heat of Rejection Icemaker AT 90°F (32°C) Model WT 70°F (21°C) -
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: How To Remove Panels
• 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: Setup
(bin accessory) to the bottom of the ice storage bin. 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: Icemaker Installation
7b) Top Kit Application: Place the bin control assembly 4 1/2" (115 mm) from the left side of the icemaker on the rear section of the dispenser or ice storage bin. See Fig. 3. Using the 2 self-drilling screws from the accessory bag, secure the bin control bracket to the dispenser or ice storage bin. - Page 16 9a) Dispenser Unit: Follow the dispenser unit, adapter kit, or top kit instructions for securing the icemaker. If no instructions are available, secure the icemaker using the mounting brackets provided. Rotate the mounting brackets so that they fit flush to the dispenser unit.
- Page 17 12) Secure bin control cover and capillary ring in their correct positions and secure with the 2 thumbscrews removed in step 11. 13) Continue routing the bin control cable up into the control box. See Fig. 7. IMPORTANT! Care should be taken when routing the bin control cable to avoid moving objects (fan blade) and hot refrigeration piping (discharge line).
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Page 18: 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 19: 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 20: 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 21: Water-Cooled Condenser
2. Water-Cooled Condenser a) KML-325/500MWJ (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 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 b) KML-700MWJ (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 24 (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...
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Page 25: 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 26: 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 Feet (20 m) Hoshizaki Up to 66 Feet (20 m) Maximum 100 Feet (30.5 m) Remote Hoshizaki Condenser... -
Page 27: 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 28 5) Remove the Schrader valve cores from the remote condenser unit service valve access ports. 6) Braze the line set copper tubes to the remote condenser unit liquid and discharge line service valves. 7) Allow the service valves to cool, then replace the Schrader valve cores. Attach the gauge manifold hoses.
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Page 29: 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 30: 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 31: 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 32: 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 properly installed? 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 the appliance and the importance of the recommended periodic maintenance? -
Page 33: 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 34 3) Move the mode switch on the control box to the "ICE" position, then move the control switch to the "ON" position. 4) Confirm bin control operation. a) Dispenser Application: If not already off, turn the dispenser power supply off. Remove the icemakers front and top panels.
- Page 35 10) After the water tank has drained, replace the drain plug in its correct position. Be careful not to cross thread the drain plug. 11) Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning. 12) Replace the front insulation panel and front panel in their correct positions, then turn on the power supply to start the automatic icemaking process.
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Page 36: 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 service switch with damp hands. -
Page 37: 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 Hoshizaki "Scale Away" into the water tank. See table below for amount. Replace the front insulation panel. - Page 38 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;...
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Page 39: Preparing The Icemaker For Periods Of Non-Use
IV. Preparing the Icemaker 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, do not leave the control switch in the "PUMP"... - Page 40 2. Drain the water tank: 1) Remove the front panel. Move the control switch to the "OFF" position, then turn off the power supply. 2) Remove the front insulation panel, then remove the water tank drain plug located in the bottom of the water tank.
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Page 41: 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 42 618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A6926-011...
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