Flake and Nugget Model Ice Machines Installation, Operation and Maintenance Manual Original Document ,Caution Read this instruction before operating this equipment Part Number 000015236 Rev 00 11/17
Safety Notices Safety Notices Read these precautions to prevent personal injury: • • • • • Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure to follow instructions in this manual can cause property damage, injury or death. Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.
nWarning Follow these electrical requirements during installation of this equipment. • All field wiring must conform to all applicable codes of the authority having jurisdiction. It is the responsibility of the end user to provide the disconnect means to satisfy local codes. Refer to rating plate for proper voltage. • This appliance must be grounded. • This equipment must be positioned so that the plug is accessible unless other means for disconnection from the power supply (e.g.
Table of Contents Safety Notices Safety Notices.................................................................................................................... 3 Definitions........................................................................................................................ 3 Section 1 General Information Model Numbers................................................................................................................. 7 Flake UnderCounter Models..........................
Table of Contents (continued) Section 3 Operation Bin Thermostat and Evaporator Low Temperature Safety Adjustment Chart..................... 19 Thermostat Adjustment for Altitude................................................................................. 19 Altitude Adjustment Chart............................................................................................. 19 UFF0200/UFF0350/UNF0200/UNF0300 Operation ...........................................................
Section 1 General Information Model Numbers This manual covers the following models: FLAKE UNDERCOUNTER MODELS NUGGET UNDERCOUNTER MODELS Self-Contained Air-Cooled UFF0200A UFF0350A Self-Contained Air-Cooled UNF0200A UNF0300A FLAKE MODULAR MODELS Self-Contained Self-Contained Air-Cooled Water-Cooled RFF0620A --RFF1300A --RFF2500A RFF0620W --RFF1300W ----- NUGGET MODULAR MODELS QuietQube Head Section --RFF1220C --RFF2200C --- RCUF Remote Condensing Unit --RCUFF1200 --RCUF2200 --- Self-Contained Self-
General Information Section 1 Adapters Arctic Pure Water Filter System RFF2500 BIN ADAPTER INSTALLATION Engineered specifically for Manitowoc ice machines. This water filter is an efficient, dependable, and affordable method of inhibiting scale formation, filtering sediment, and removing chlorine taste and odor. nWarning PERSONAL INJURY POTENTIAL RFF2500 ice machines are not approved for use on B or D series bins.
Section 2 Installation Instructions Location of Ice Machine Installation Requirements The location selected for the ice machine must meet the following criteria. If any of these criteria are not met, select another location. • The ice machine and bin must be level. • Install the bin drain and ice machine drain separately. • Ice machine drain must be vented. • Bin drain termination must have an air gap. • When local requires a backflow preventer must be installed on water inlet lines.
Installation Instructions Section 2 Water and Drain Requirements POTABLE WATER REQUIREMENTS Follow these guidelines to install water inlet lines: • Do not connect the ice machine to a hot water supply. Be sure all hot water restrictors installed for other equipment are working. (Check valves on sink faucets, dishwashers, etc.) • If water pressure exceeds the maximum of 80 psig (552 kPA) recommended pressure, obtain a water pressure regulator.
Section 2 Installation Instructions WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Location Potable Water Inlet Potable Water Drain Condenser Water Inlet Condenser Water Drain Bin Drain Large Capacity Bin Drain Water Temp Min/Max 37°/90°F (3°/32°C) Water Pressure Min/Max 20/80 psi (138/552 kPA) --- --- 1/2" MPT 37°/90°F (3°/32°C) 20/150 psi (138/1034 kPA) 3/8" FPT RFF2500 only = 1/2" FPT --- --- 1/2" MPT ----- ----- 3/4" FPT 1" FPT VENT TUBE 18" (46 CM) LONG Fitting/Min Tubing Size 3/8" FP
Installation Instructions Section 2 Electrical Service nWarning All wiring must conform to local, state and national codes. VOLTAGE The maximum allowable voltage variation is ±10% of the rated voltage at ice machine start-up (when the electrical load is highest). nWarning The ice machine must be grounded in accordance with national and local electrical codes. All electrical work, including wire routing and grounding, must conform to local, state and national electrical codes.
Section 2 Installation Instructions Maximum Breaker Size & Minimum Circuit Amperage Chart Importan 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.
Installation Instructions Section 2 Refrigeration System Installation Remote Condensing Unit Only QuietQube® Ice Machine RNF1100C RFF1300C RFF2200C Remote Condensing Unit RCUF1000 RCUF1200 RCUF2200 *Line Set Suction Line 5/8 inch (15.9 mm) RC 21/31/51 Factory Equipment Refrigeration Amounts Line Set* RC-21 RC-31 RC-51 Liquid Line 3/8 inch (9.5 mm) Importan Manitowoc remote systems are only approved and warranted as a complete new package.
Section 2 Installation Instructions Refrigeration Line Set Installation Remote Condensing Unit Only GENERAL Refrigeration line set installations consist of vertical and horizontal line set distances between the ice machine and the condensing unit. The following guidelines, drawings and calculation methods must be followed to assure proper oil return and remote condensing unit/ice machine operation.
Installation Instructions Section 2 C. SUCTION LINE OIL TRAPS ,Caution Do not form unwanted traps in refrigeration lines. Never coil excess refrigeration tubing. 0 to 20 feet (0 to 6.1 m) Rise: No oil trap is required when the condensing unit is located 20 feet (6.1 m) or less above the ice machine head section. 21 to 35 feet (6.4 to 10.7 m) Rise: The suction line requires an additional Oil Trap (“S” type) to be installed.
Section 2 Installation Instructions Step 5 • • Pressure Test and Evacuate Line Set and Ice Machine Head Section Pressure testing and evacuation can be performed from the ice machine head section or CVD condensing unit shut-off valves. Schrader valve core removal tools that allow for removal and installation of the valve cores without removing manifold gauge set hoses are recommended to decrease the evacuation time. • Pressure test @ 150 psi (1000 kPa) for a minimum of 15 minutes.
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.
Section 3 Operation NOTE: Flake and nugget 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. Thermostat Adjustment for Altitude Bin Thermostat and Evaporator Low Temperature Safety Adjustment Chart Refer to table and adjust bin thermostat to match the installation location altitude.
Operation Section 3 UFF0200/UFF0350/UNF0200/UNF0300 Operation The ice machine will not start until: A. The rocker switch is moved to “ON”. B. Ice does not contact the bin thermostat bulb. C. The water reservoir is full of water. Placing the toggle switch in the ON position starts the gear motor and refrigeration system. The float valve controls the water inlet valve and water level. The freeze cycle ends when ice contacts the bin thermostat.
Section 4 Maintenance Interior Cleaning and Sanitizing Cleaning/Sanitizing Procedure Maintenance procedures covered in this manual are not covered by the warranty. Use Metal Safe Ice Machine Cleaner, part number 000000084. ,Caution Use only Manitowoc approved Metal Safe Ice Machine Cleaner (part number 000000084) and Sanitizer (part number 9405653). Do not mix Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.
Maintenance Section 4 Step 10 Refer to Removal of Parts for Cleaning/Sanitizing and disassemble parts for hand cleaning/sanitizing. Procedure to Clean Heavily Scaled Flake Ice Machines • Hand clean all parts. • Rinse all parts with clear potable water. Step 1 Remove front and top covers and set the toggle switch to the OFF position. • Sanitize all parts — do not rinse after sanitizing. Step 2 Remove all ice from the bin.
Section 4 Maintenance Removal of Parts for Cleaning/Sanitizing nWarning Disconnect electric power to the ice machine at the electric switch box and wear rubber gloves and safety goggles (or face shield) while handling cleaner or sanitizer. ICE CHUTE REMOVAL RFF0320/RNF0620/RFF0620/RNF1100/RFF1300/RFF2500 Only Place the toggle switch in the OFF position, turn off the water supply and disconnect electrical power to the ice machine. 10. Disconnect water supply. 11. Remove water reservoir cover.
Maintenance Section 4 Air-Cooled Condenser Cleaning nWarning Disconnect electric power to the ice machine and the remote condenser at the electric service switch before cleaning the condenser. A dirty condenser restricts airflow, resulting in excessively high operating temperatures and reduced ice production. Clean the condenser at least every six months. ,Caution The condenser fins are sharp. Use care when cleaning them. 1.
Section 5 Troubleshooting Checklist If a problem arises during operation of your ice machine, follow the checklist below before calling service. Routine adjustments and maintenance procedures are not covered by the warranty. Problem Ice machine does not operate. Possible Cause No electrical power to the ice machine and/or condensing unit. High pressure cutout tripping. Power switch set improperly. Bin thermostat open or ice touching thermostat probe. No water in reservoir.
Troubleshooting Section 5 THIS PAGE INTENTIONALLY LEFT BLANK 26 Part Number 000015236 Rev 00 11/17
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