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Manitowoc
RF Model
Flake Ice Machines
Installation, Use & Care Manual
This manual is updated as new information and models are released.
Visit our website for the latest manual. www.manitowocice.com
This manual contains English and French text
America’s #1 Selling Ice Machine
Part Number 000007644 3/11
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Table of Contents Section 1 General Information Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 UnderCounter Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Modular Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Section 2 Installation Instructions Location of Ice Machine . . . . . . . . . . . . . . . . . . .
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Table of Contents (continued) Section 4 Maintenance Interior Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Cleaning/Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Heavily Scaled Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents (continued) 4 Part Number 000007644 3/11
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Section 1 General Information Model Numbers This manual covers the following models: UNDERCOUNTER MODELS Self-Contained Air-Cooled RF0244A RF0266A RF0385A RF0388A RF0399A RF0644A MODULAR MODELS Self-Contained Self-Contained Rack Unit QuietQube RCU Remote Air-Cooled Water-Cooled Head Section Head Section Condensing Unit RFS0300A --- --- --- --- RFS0650A RFS0650W ---- --- --- RF1200A RF1200W RF1279R RF1278C RCU1075 RF2300A RF2300W RF2379R RF2378C RCU2375 RF2300 Bin Adapter Installation ! Warning
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Section 2 Installation Instructions Location of Ice Machine Installation Requirements The location selected for the ice machine must meet the • The ice machine and bin must be level. following criteria. If any of these criteria are not met, • Vent the ice machine and bin drains separately. select another location. • Bin drain termination must have an air gap. • The location must be free of airborne and other • A backflow preventer is required on water inlet lines. contaminants. • The ice machi
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Installation Instructions Section 2 WATER SUPPLY AND DRAIN LINE SIZING/ Water and Drain Requirements CONNECTIONS POTABLE WATER REQUIREMENTS Water Fitting/Min Water Temp Follow these guidelines to install water inlet lines: Location Pressure Tubing Min/Max Min/Max Size • Do not connect the ice machine to a hot water 40°/90°F 14/80 psi supply. Be sure all hot water restrictors installed for Potable 3/8" FPT Water Inlet other equipment are working. (Check valves on sink (4°/32°C) (100/552 kPA)
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Section 2 Installation Instructions Electrical Service GROUND FAULT CIRCUIT INTERRUPTER ! Warning We do not recommend the use of a GFCI/GFI circuit All wiring must conform to local, state and national protection with our equipment. If a GFCI/GFI is required codes. by code, use a GFCI/GFI breaker rather than outlet which is more prone to intermittent nuisance trips than VOLTAGE panel circuit breakers. The maximum allowable voltage variation is ±10% of the MINIMUM POWER CORD SPECIFICATIONS r
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Installation Instructions Section 2 Maximum Breaker Size & Minimum Circuit Amperage Chart Important Due to continuous improvements, this information is for reference only. Please refer to the ice machine serial number tag to verify electrical data. Serial tag information overrides information listed on this page. Air-Cooled Water-Cooled QuietQube Voltage Max Max Max Series Ice Min Total Min Total Phase Fuse/ Fuse/ Fuse/ Machine Circuit Circuit Circuit Circuit Cycle Circuit Circuit Circuit Amp
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Section 2 Installation Instructions Factory Equipment Refrigeration Amounts Refrigeration System Installation Remote Condensing Unit Only ICE MACHINE HEAD SECTION Each ice machine condensing unit ships from the factory QuietQube® Remote Line Set* with a R-404A refrigerant charge appropriate for the Condensing Unit Ice Machine entire system operation. The serial tag on the ice RC-21 machine indicates the refrigerant charge. The refrigerant RF1200C RCU1075C RC-31 charge is sufficient to op
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Installation Instructions Section 2 A. LINE SET LENGTH Refrigeration Line Set Installation Remote Condensing Unit Only 100 feet (30.5 m) Length: The maximum measured length the line set can be. GENERAL The receiver is designed to hold a charge sufficient to Refrigeration line set installations consist of vertical and operate the ice machine in ambient temperatures horizontal line set distances between the ice machine between -20°F (-28.9°C) and 120°F (48.9°C), with line and the condensin
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Section 2 Installation Instructions C. SUCTION LINE OIL TRAPS Service Loop A service loop in the line set permits easy access to the ! Caution ice machine for cleaning and service. Do not form unwanted traps in refrigeration lines. Never coil excess refrigeration tubing. • A service loop is not considered an oil trap. • The service loop is not included when calculating 0 to 20 feet (0 to 6.1 m) Rise: No oil trap is required length, rise or drop of the tubing run. when the condensing unit is
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Installation Instructions Section 2 Step 4 Connecting the line set Step 5 Pressure Test and Evacuate Line Set and Ice Machine Head Section To prevent oxidation of the copper, purge line set and condensing unit with dry nitrogen while brazing. • Suction and liquid line set shutoff valves must remain closed until pressure testing and evacuation are A. Connect the Line Set to the Remote Condensing complete. Unit • Pressure testing and evacuation can be performed ! Warning from the ice mac
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Section 2 Installation Instructions Step 6 Leak Check The Refrigeration System Leak check the new line set connections at the ice Important machine head section, condensing unit and S trap as All refrigeration valve caps must be reinstalled to well as all factory joints throughout the entire system. prevent future refrigeration leaks. Disconnect power to the remote condensing unit. Place the rocker switch into the ON position. This allows the Verify O-ring in schrader valve caps are intac
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Installation Instructions Section 2 Installation Check List All Manitowoc ice machines are factory-operated and adjusted before shipment. Adjustments and maintenance procedures outlined in this manual are the responsibility of the owner/operator and are not covered by the warranty. Is the Ice Machine level? Is there a separate drain for the water-cooled condenser? Is the ice machine and adapter (when used) secured to the dispenser? Is there a separate drain for the dispenser? Have
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Section 2 Installation Instructions Additional Checks for QuietQube Models Is the lineset length, rise and drop within the Has the condenser/condensing unit been guidelines? installed to prevent any roofing damage? Are the suction and liquid line shut-off valves Have the refrigeration lines been insulated and open? secured properly to prevent vibration? Is the line set routed properly? Has the RCU remote condensing unit been located where ambient temperatures will remain in the r
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Section 3 Operation NOTE: Flake ice machines use an auger to remove ice from the evaporator. Occasional noises (creaks, groans, squeaks, or pops) are a normal part of the ice making process. Evaporator Low Temperature Safety RF0244/RF0266/RF0385/ Thermostat and Bin Thermostat RF0388/RF0399/RF0644 Operation The bin thermostat sensing bulb is located in the ice The ice machine will not start until: chute or bin and turns the ice machine on and off as the A. The rocker switch is moved to “ON”.
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Section 3 Operation RFS0300 Operation RFS0650/RF1200/RF2300 Operation The ice machine will not start until: The ice machine will not start until: A. The rocker switch is moved to “ON”. A. The rocker switch is moved to “ON”. B. Ice does not contact the bin thermostat bulb. B. Ice does not contact the bin thermostat bulb. C. The water reservoir is full of water. C. The water reservoir is full of water. Placing the toggle switch in the ON position starts the Placing the toggle switch in the ON posi
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Section 4 Maintenance Interior Cleaning and Sanitizing Cleaning/Sanitizing Procedure Maintenance procedures covered in this manual are not Use Nickel Safe Ice Machine Cleaner, part number covered by the warranty. 000000084. Use Ice Machine Sanitizer part number 94-0565-3. ! Caution Step 1 Remove front and top covers and set the toggle Use only Manitowoc approved Nickel Safe Ice switch to the OFF position. Machine Cleaner (part number 000000084) and Step 2 Remove all ice from the bin. San
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Section 4 Maintenance Step 10 Refer to disassembly for cleaning/sanitizing Procedure to Clean Heavily Scaled Flake and remove parts for hand cleaning/sanitizing. Ice Machines • Hand clean all parts. Step 1 Remove front and top covers and set the toggle switch to the OFF position. • Rinse all parts with clear potable water. Step 2 Remove all ice from the bin. • Sanitize all parts — do not rinse after sanitizing. Step 3 Turn off the ice making water supply. • Spray all interior bin surf
