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- Page 1 Hoshizaki Hoshizaki America, Inc. Commercial Refrigerators & Freezers Models RR28A RR55A RF28A RF55A INSTRUCTION MANUAL “A Superior Degree of Reliability” www.hoshizaki.com Issued: 8-10-2006...
- 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.
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Page 3: Table Of Contents
• Please review this manual. It should be read carefully before the unit is installed and operated. Only qualified service technicians should install, service and maintain the unit. This manual should be made available to the technician prior to installation, maintenance or service. -
Page 4: General Information
Keep Dry This is a commercial refrigerator/freezer, and should be used only for the purpose for which it has been expressly designed. Any other use should be considered improper and therefore dangerous. The manufacturer will not be held liable or responsible for any damage caused by improper, incorrect and unreasonable use. -
Page 5: Installation Instructions
45°F to 100°F (7°C to 38°C). For best operating results: • The refrigerator/freezer should not be located next to ovens, grills or other high heat producing equipment. • The location should provide a firm foundation for the equipment. -
Page 6: Setup
film after the unit cools. 6) Position the unit in the selected site. Fig. 3 Min. 12" (30 cm) Fig. 2 IMPORTANT Caster Right Side View Drain Tank Cover Refrigerator or Freezer Unit Wall Min. 1/2" (13 mm) -
Page 7: Electrical Connections
E. Final Checklist 1) Is the refrigerator/freezer in a site where the ambient temperature is within 45°F to 100°F (7°C to 38°C) all year? 2) Have the shipping carton and all packing material, tape and protective plastic film on... -
Page 8: Operating Instructions
• Do not store any volatile or flammable substances, such as benzine, ether, adhesives, or LPG in the unit. • This refrigerator/freezer is designed only for temporary storage of foods. Use for any other purposes (ex. storage of chemicals or medical supplies such as vaccine and serum) could cause deterioration of stored items. -
Page 9: Startup
2) To change the setpoint, press and hold the down button to raise or lower the setpoint. The cabinet temperature is adjustable between 21°F and 54°F (-6°C and +12°C) for refrigerator models and between -13°F and 19°F (-25°C and -7°C) for freezer models. -
Page 10: Defrost
Note: The cabinet temperature is updated every 30 seconds. E. Shutdown 1) Before shutting down the unit, move the stored food into another refrigerator/freezer. 2) Unplug the unit. 3) When preparing the unit for long storage, clean the cabinet interior and door gaskets, dry them thoroughly and store the unit in a dry place. -
Page 11: Cleaning And Maintenance Instructions
2. Use clean cloth and hands for cleaning. Do not use a water jet to clean the machine compartment. 3. Before cleaning the cabinet interior, move the stored foods into another clean refrigerator/freezer. 1. Exterior The exterior is exposed to grease, moisture and dust. Even stainless steel needs periodic cleaning to prevent possible corrosion. -
Page 12: Maintenance
A plastic mesh air filter removes dirt or dust from the air, and keeps the condenser from getting clogged. As the filter gets clogged, the refrigerator/freezer’s performance will be reduced. Check the filter at least twice a month. When clogged, use warm water and a neutral cleaner to wash the filter. -
Page 13: Condenser
2. Condenser Check the condenser (located behind the air filter) once a year and use a brush or vacuum cleaner to clean the unit as required. 3. Light Use only a 130V 40W bulb. Replacement should be carried out by a qualified service technician. -
Page 14: Troubleshooting
V. Troubleshooting 1. In case of insufficient refrigeration performance, move the stored foods into another refrigerator/freezer to prevent their deterioration. 2. When contacting a service company, let them know the model name, serial number (see nameplate on the right-side interior wall), date of installation (see warranty card) and type of problem (ex. -
Page 15: Poor Cooling Performance
Alarm Code Problem High Temperature Alarm Cabinet temperature has exceeded set temperature by 18°F (10°C) for more than x minutes. The default value of x is "2" (120 minutes). Low Temperature Alarm Cabinet temperature has remained below setpoint by 9°F (5°C) for more than y minutes. The default value of y is "1"... -
Page 16: Condensation
• Operating sounds from compressor, condenser fan motor, or evaporator fan motor. This is not a sign of failure. • Installed on an unsteady floor. Contact an authorized Hoshizaki service company. • Not leveled in the left-to-right or front-to-rear directions. Contact an authorized... - Page 17 HOSHIZAKI AMERICA, INC. 618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A3KA10A...
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