Manitowoc RFF Technician's Handbook
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Manitowoc RFF Technician's Handbook

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Engineered for Ease
Flake & Nugget Models
RFF/UFF/RNF/UNF Ice Machines
Technician's Handbook
Part Number 000015433_03 5/20

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Summary of Contents for Manitowoc RFF

  • Page 1 Engineered for Ease Flake & Nugget Models RFF/UFF/RNF/UNF Ice Machines Technician’s Handbook Part Number 000015433_03 5/20...
  • Page 3 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.
  • Page 4 Warning 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.
  • Page 5 Warning Follow these precautions to prevent personal injury during installation of this equipment: • Installation must comply with all applicable equipment fire and health codes with the authority having jurisdiction. • To avoid instability the installation area must be capable of supporting the combined weight of the equipment and product.
  • Page 6 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment. • Refer to nameplate to identify the type of refrigerant in your equipment. • Only trained and qualified personnel aware of the dangers are allowed to work on the equipment. •...
  • Page 7 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment. • Objects placed or dropped in the bin can affect human health and safety. Locate and remove any objects immediately. • Never use sharp objects or tools to remove ice or frost.
  • Page 8 Warning Follow these precautions to prevent personal injury during use and maintenance of this equipment: • It is the responsibility of the equipment owner to perform a Personal Protective Equipment Hazard Assessment to ensure adequate protection during maintenance procedures. • Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of This Or Any Other Appliance.

  • Page 9: Table Of Contents

    Model/Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Manitowoc Cleaner/Descaler and Sanitizer . . . . . . . 18 Installation Installation Requirements .
  • Page 10 Maintenance Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Exterior Cleaning.
  • Page 11 Troubleshooting UFF0200/UFF0350/UNF0200/UNF0300 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Self-Contained Air-Cooled .
  • Page 12 Component Specifications Bin Thermostat ......83 Low Temperature Thermostat Evaporator safety thermostat ....83 High Pressure Cutout (HPCO) Control .
  • Page 13 Diagrams Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Flake Models .
  • Page 14 Refrigeration Tubing Schematics . . . . . . . . . . . . . . . . . 147 UFF0200/UFF0350/UNF0200/UNF0300 ..147 RFF0320/RNF0320 Air-cooled .

  • Page 15: General Information

    General Information Model Numbers FLAKE AIR & WATER-COOLED MODELS Flake Models Self Storage Self Storage Modular Air- Modular Air-Cooled Water-Cooled Cooled Water-Cooled UFF0200A – – – UFF0350A – – – – – RFF0320A – – – RFF0620A RFF0620W – – RFF1300A RFF1300W –...

  • Page 16: Quietqube Models With Remote Condensing Unit

    QUIETQUBE MODELS WITH REMOTE CONDENSING UNIT Flake Models QuietQube Head RCUF Remote Condensing Unit RFF1220C RCUF1200 RFF2200C RCUF2200 Nugget Models QuietQube Head RCUF Remote Condensing Unit RNF1020C RCUF1000 RNF2000C RCUF2200 Ice Machine Heat of Rejection Series Ice Machine Heat of Rejection BTU/Hour UFF0200 - RFF0320 2400 UNF0200...

  • Page 17: Ice Machine Warranty Information

    REGISTRATION Model/Serial Number These numbers are required when requesting information from your local Manitowoc Distributor, or Manitowoc Ice. The model and serial number are listed on the MODEL/ SERIAL NUMBER DECAL affixed to the ice machine. Part Number 000015433_03 5/20...

  • Page 18: Manitowoc Cleaner/Descaler And Sanitizer

    Manitowoc Cleaner/Descaler and Sanitizer Manitowoc Ice Machine Cleaner/Descaler and Sanitizer are available in 16 oz. (473 ml) bottles. These are the only cleaner and sanitizer approved for use with Manitowoc products. Cleaner/Descaler Part Number Sanitizer Part Number 16 oz. 000000084 16 oz.

  • Page 19: Installation

    Installation 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. • Air temperature - Minimum 50°F (10°C), Maximum 110°F (43°C) • The location must be free of airborne and other contaminants.

  • Page 20: Potable Water Requirements

    Potable Water Requirements • Plumbing must conform to local codes. • Water temperature: Minimum 37°F (3°C), Maximum 90°F (32°C). • Do not connect the ice machine to a hot water supply. Be sure all hot water restrictors installed for other equipment are working.

  • Page 21: Ice Machine Clearance Requirements

    Ice Machine Clearance Requirements All Models Clearance Requirements Back 5” (12.7 cm) Sides/Top 8” (20.3 cm) RCUF Units Remote Condensing Unit Front/Back 24” (61.0 cm) Sides/Top 6” (15.2 cm) 24 inches clearance on top and sides is recommended for serviceability NOTE: Allowance must be made for removal when the ice machine is built-in.

  • Page 22: Electrical Service

    Electrical Service Warning All wiring must conform to local, state and national codes. VOLTAGE The maximum allowable voltage variation is ± 10% of the rated voltage on the ice machine model/serial number plate at compressor start-up. FUSE/CIRCUIT BREAKER A separate fuse/circuit breaker must be provided for each ice machine.

  • Page 23: Maximum Breaker/Minimum Circuit Amperage

    NOTE: Due to continuous improvements, this information is for reference only. Please refer to the ice machine serial number tag to verify electrical data. Model/Serial tag information overrides information listed on these pages. RFF/RNF/UFF/UNF AIR-COOLED MODELS Air-Cooled Voltage Series Ice...

  • Page 24: Rff/Rnf Quietqube Model Head Sections

    RFF/RNF QUIETQUBE MODEL HEAD SECTIONS Remote Air-Cooled Series Ice Voltage Phase Total Machine Cycle Fuse/ Circuit Circuit Breaker Amps RNF1020C 115/1/60 15 Amp RFF1220C 208-230/1/60 15 Amp RNF2000C 208-230/1/60 15 AMP RFF2200C 208-230/1/60 15 Amp RCUF QUIETQUBE MODEL CONDENSING UNITS...

  • Page 25: Cleaning And Sanitizing

    Maintenance procedures covered in this manual are not covered by the warranty. Caution Use only Manitowoc approved Ice Machine Cleaner/ Descaler (part number 000000084) and Sanitizer (part number 9405653). Do not mix Cleaner/Descaler and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.
  • Page 26 Detailed Descaling and Sanitizing Procedure Use Ice Machine Cleaner/Descaler part number 000000084. Use Ice Machine Sanitizer part number 9405653. Remove front and top covers and set the toggle Step 1 switch to the OFF position. Remove all ice from the bin. Step 2 Turn off the ice making water supply and drain Step 3...
  • Page 27 Step 9 turn off the ice making water supply. Remove the following components for hand Step 10 descaling and sanitizing for RFF and RNF models. Remove water reservoir cover. Remove microswitch and bin thermostat from the ice chute. Remove retainer, ice chute elbow and ice chute.
  • Page 28 Hand descale the removed part(s) in a properly mixed solution of descaler and water. Solution Type Water Mixed With Descaling 1 gal. (4 L) 16 oz (500 ml) Cleaner/Descaler Part Number 000000084 Use a soft-bristle brush or sponge (NOT a wire brush) to carefully clean the parts.
  • Page 29 Reassemble all components removed in step 10 Step 11 into the ice machine. Refer to chart and premix water and sanitizer. Step 12 Amount of Water Amount of Sanitizer 1 Gallons (4 L) Water 1/2 ounce (15 ml) Fill the evaporator and reservoir with sanitizer/ Step 13 water solution.

  • Page 30: Remedial Cleaning Procedure For Heavily Scaled Ice

    Remedial Cleaning Procedure for Heavily Scaled Ice Machines Perform this procedure if you have some or all of these symptoms. • Excessive grinding, popping or squealing noises from the evaporator • Grinding noise from gearbox • Ice machine trips speed sensor NOTE: A Cleaning/Sanitizing Procedure must be performed after this procedure.
  • Page 31 Refer to chart and premix cleaner/descaler Step 5 with lukewarm water in a non-metallic container. Model Water Mix Cleaner/Descaler and Reservoir Water Capacity Use Ice machine cleaner/ descaler, part number 000000084 only Cleaner Water UNF0200 UFF0200 14 oz (400 ml) 9 oz (266 ml) 5 oz (148 ml) UFF0350...

  • Page 32: Cleaning The Air Filter And Condenser

    CLEANING THE AIR FILTER AND CONDENSER Warning Disconnect electric power to the ice machine at the electric service switch before cleaning the condenser. The condenser fins are sharp. Use care when cleaning them. Air-Cooled Condenser Clean the condenser at least every six months. Follow the steps below.

  • Page 33: Removal From Service/Winterization

    Removal from Service/Winterization Caution If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result. Damage of this nature is not covered by the warranty. Follow the procedure below. 1. Disconnect the electric power at the circuit breaker or the electric service switch.
  • Page 34 THIS PAGE INTENTIONALLY LEFT BLANK Part Number 000015433_03 5/20...

  • Page 35: Sequence Of Operation

    Sequence of Operation Ice Making Sequence of 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. UFF0200/UFF0350/UNF0200/UNF0300 OPERATION The ice machine will not start until: The rocker switch is moved to “ON”.

  • Page 36: Rnf0620/Rff0620/Rnf1100/Rff1300/Rff2500 Operation

    RNF0620/RFF0620/RNF1100/RFF1300/RFF2500 OPERATION When the toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start: Bin Thermostat High Pressure Cut-out Switch Ice Chute Safety Switch Low Pressure Switch Low Water Level Switch Placing the toggle switch in the ON position starts the gear motor.

  • Page 37: Rnf1020C/Rff1220C/Rnf2000C/Rff2200C

    RNF1020C/RFF1220C/RNF2000C/RFF2200C Remote Air-cooled Condensing Unit Models When the toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start: Bin Thermostat High Pressure Cut-out Switch Ice Chute Safety Switch Low Pressure Switch Low Water Level Switch Placing the toggle switch in the ON position starts the gear...
  • Page 38 Ice Production/Quality Check QUALITY CHECK Ice quality varies with ambient and water temperatures, and is measured by the amount of water in the ice. Generally speaking, higher incoming water temperature results in lower ice quality. Lower water temperature results in higher ice quality. ICE PRODUCTION CHECK NOTE: Ice production checks that are within 10% of the charted capacity are considered normal due to variances...

  • Page 39: Thermostat Settings

    Thermostat Settings Bin Thermostat: The bin thermostat sensing bulb is located in the ice chute on modular models and in the bin thermostat holder on the right side of the bin on self storage models. The bin thermostat turns the ice machine on and off as the level of ice in the bin changes.
  • Page 40 Thermostat Setting Chart NOTE: Settings are for reference only. Factory setting is indicated on control label and overrides information listed on this page. Model Bin Thermostat Evaporator Setting Thermostat Setting UNF0200 UFF0200 UNF0300 RFF0320 RNF0320 UFF0350 RNF0620 RFF0620 RNF1020C RNF1100 RFF1220C RFF1300 RNF2000C...

  • Page 41: Uff0200/Uff0350/Unf0200/Unf0300

    Troubleshooting Diagnostic troubleshooting for the ice machine involves following flowcharts that are dependent on symptoms of the failed machine. Follow the flowcharts for the failure symptom and model you are working on. NOTE: Refer to the sequence of operation to determine where in the sequence the ice machine has failed.
  • Page 42 Part Number 000015433_03 5/20...
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  • Page 47: Rff0320/Rnf0320 Troubleshooting

    RFF0320/RNF0320 Troubleshooting SELF-CONTAINED AIR-COOLED When the toggle switch is placed in the “ON” position the following controls must be in the closed position before the ice machine will start: Bin Thermostat Ice Chute Safety Switch Low Water Level Switch High Pressure Cut-out Switch Low Pressure Cut-Out Switch Placing the toggle switch in the ON position starts the gear motor and an 8 minute compressor time delay.
  • Page 48 Part Number 000015433_03 5/20...
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  • Page 53: Rff0620/Rnf0620/Rnf1100/Rff1300

    RFF0620/RNF0620/RNF1100/RFF1300 Troubleshooting SELF-CONTAINED AIR-COOLED Normal Operation When the toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start: Bin Thermostat High Pressure Cut-out Switch Ice Chute Safety Switch Low Pressure Switch Low Water Level Switch NOTE: Placing the toggle switch in the ON position starts...
  • Page 54 Part Number 000015433_03 5/20...
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  • Page 59: Rnf1020C/Rff1220C Troubleshooting

    RNF1020C/RFF1220C Troubleshooting QUIETQUBE REMOTE AIR-COOLED MODELS WITH REMOTE CONDENSING UNIT Normal Operation When the toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start: Bin Thermostat High Pressure Cut-out Switch Ice Chute Safety Switch Low Pressure Switch Low Water Level Switch...
  • Page 60 Part Number 000015433_03 5/20...
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  • Page 66: Rff2500 Troubleshooting

    RFF2500 Troubleshooting SELF-CONTAINED AIR-COOLED Normal Operation When the toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start: Bin Thermostat High Pressure Cut-out Switch Ice Chute Safety Switch Low Pressure Switch Low Water Level Switch Placing the toggle switch in the ON position starts the...
  • Page 67 Part Number 000015433_03 5/20...
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  • Page 73: Rnf2000C/Rff2200C Troubleshooting

    RNF2000C/RFF2200C Troubleshooting QUIETQUBE REMOTE AIR-COOLED MODELS WITH REMOTE CONDENSING UNIT Normal Operation When the toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start: Bin Thermostat High Pressure Cut-out Switch Ice Chute Safety Switch Low Pressure Switch Low Water Level Switch...
  • Page 74 Part Number 000015433_03 5/20...
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  • Page 81: Refrigeration Troubleshooting

    Part Number 000015433_03 5/20...

  • Page 82: Thermostatic Expansion Valve Models

    Part Number 000015433_03 5/20...

  • Page 83: Component Specifications

    Component Specifications BIN THERMOSTAT Model Setting Cut-Out Cut-In UFF0200 / UNF0200 37°F ±1 43°F ±1 UNF0300 / UFF0350 3°C ±.1 6°C ±.1 RFF0320 / RFF0620 RNF0620 / RNF1100 35°F ±1 41°F ±1 RNF1020C / RFF1300 1.6°C ±.1 5.0°C ±.1 RFF1220C / RNF2000C RFF2200C / RFF2500 LOW TEMPERATURE THERMOSTAT EVAPORATOR SAFETY THERMOSTAT...

  • Page 84: High Pressure Cutout (Hpco) Control

    HIGH PRESSURE CUTOUT (HPCO) CONTROL Model Cut-Out Cut-In RNF0320 / RFF0620 325 psig ±10 200 psig ±10 RFF1300 / RNF0320 (2250 kPa ±69) (1379 kPa ±69) RNF0620 / RNF1100 22.5 bar ±.69 13.79 bar ±.69 Auto Reset 435 psig ±10 RFF2500 (3000 kPa ±69) Manual Reset...

  • Page 85: Rotation Sensor

    ROTATION SENSOR RFF0620 / RNF0620 / RNF1100 / RNF1020C / RFF1300 RNF2000C / RFF2500 Light Definition Yellow Blinking Time Delay Period Yellow Solid Normal Operation Sensing Red Blinking 2 Time Delay Period - First 1 To 7 Faults Flashes Per Second Red Solid Lockout - 8 Consecutive Faults Due To A Speed Fault...

  • Page 86: Low Pressure Cutout (Lpco) Control

    LOW PRESSURE CUTOUT (LPCO) CONTROL Model Cut-Out Cut-In UFF0200 / RNF0320 RNF0620 / RFF0620 7 psig ±2 36 psig ±2 RNF1100 / RFF1300 (.5 bar ±.2) (2.5 bar ±.2) RFF2200C / RCUF2200 12 psig ±2 RFF2500 Manual Reset (.8 bar ±.2) FAN CYCLE CONTROL Model Cut-Out (Open)

  • Page 87: Total System Refrigerant Charge

    TOTAL SYSTEM REFRIGERANT CHARGE This information is for reference only. Model/Serial plate information overrides information listed in this table. Model Refrigerant Charge Flake Models UFF0200A 9.4 oz / 265 g UFF0350A 11.25 oz / 320 g RFF0320A 13.6 oz / 395 g RFF0620A 20.8 oz / 590 g RFF0620W...

  • Page 88: Filter-Driers

    FILTER-DRIERS The size of the filter-drier is important. The refrigerant charge is critical. Using an improperly sized filter-drier will cause the ice machine to be improperly charged with refrigerant. Important Driers are covered as a warranty part. The drier must be replaced any time the system is opened for repairs.

  • Page 89: Ice Production & Refrigerant Pressure

    Charts Ice Production & Refrigerant Pressure These charts are used as guidelines to verify correct ice machine operation. Accurate collection of data is essential to obtain the correct diagnosis. • Zero out manifold gauge set before obtaining pressure readings to avoid mis-diagnosis. •...

  • Page 90: Flake Models

    Flake Models UFF200A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 257 lbs 21°C/10°C 116 kgs 90°F/70°F 198 lbs 32°C/21°C 90 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge...

  • Page 91: Rff0320A

    RFF0320A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 370 lbs 21°C/10°C 168 kgs 90°F/70°F 286 lbs 32°C/21°C 130 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 92: Uff0350A

    UFF0350A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 398 lbs 21°C/10°C 181 kgs 90°F/70°F 328 lbs 32°C/21°C 149 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 93: Rff0620A

    RFF0620A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 747 lbs 21°C/10°C 339 kgs 90°F/70°F 506 lbs 32°C/21°C 230kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 94: Rff0620W

    RFF0620W SELF CONTAINED WATER-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 740 lbs 21°C/10°C 335 kgs 90°F/70°F 596 lbs 32°C/21°C 270 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 95: Rff1220C With Rcuf1200

    RFF1220C WITH RCUF1200 QUIETQUBE REMOTE CONDENSER AIR COOLED Characteristics vary depending on operating conditions ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production -20°F/50°F 1413 lbs -29°C/10°C 641 kgs 70°F/50°F 1092 lbs 21°C/10°C 495 kgs 90°F/70°F 958 lbs 32°C/21°C 435 kgs 120°F/70°F 603 lbs...

  • Page 96: Rff1300A

    RFF1300A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 1264 lbs 21°C/10°C 573 kgs 90°F/70°F 950 lbs 32°C/21°C 431 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 97: Rff1300W

    RFF1300W SELF CONTAINED WATER-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 1365 lbs 21°C/10°C 619 kgs 90°F/70°F 1116 lbs 32°C/21°C 506 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 98: Rff2200C With Rcuf2200

    RFF2200C WITH RCUF2200 QUIETQUBE REMOTE CONDENSER AIR COOLED Characteristics vary depending on operating conditions ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production -20°F/50°F 2403 lbs -29°C/10°C 1090 kgs 70°F/50°F 2063 lbs 21°C/10°C 936 kgs 90°F/70°F 1702 lbs 32°C/21°C 772 kgs 120°F/70°F 1073 lbs...

  • Page 99: Rff2500A

    RFF2500A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 2301 lbs 21°C/10°C 1044 kgs 90°F/70°F 1665 lbs 32°C/21°C 755 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 100: Nugget Models

    Nugget Models UNF0200A SELF STORAGE AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 231 lbs 21°C/10°C 97 kgs 90°F/70°F 164 lbs 32°C/21°C 74 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge...

  • Page 101: Unf0300A

    UNF0300A SELF STORAGE AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 330 lbs 21°C/10°C 150 kgs 90°F/70°F 275 lbs 32°C/21°C 125 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 102: Rnf0320A

    RNF0320A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 hour Water Temperature Ice Production 70°F/50°F 308 lbs 21°C/10°C 140 kgs 90°F/70°F 236 lbs 32°C/21°C 107 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Entering Discharge Suction...

  • Page 103: Rnf0620A

    RNF0620A SELF CONTAINED AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production 70°F/50°F 591 lbs 21°C/10°C 268 kgs 90°F/70°F 451 lbs 32°C/21°C 204 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Around Ice Discharge Suction...

  • Page 104: Rnf0620W

    RNF0620W WATER-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production 70°F/50°F 613 lbs 21°C/10°C 278 kgs 90°F/70°F 508 lbs 32°C/21°C 230 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Around Freeze Cycle Ice Machine Discharge Suction...

  • Page 105: Rnf1020C With Rcuf1000

    RNF1020C WITH RCUF1000 QUIETQUBE REMOTE CONDENSER AIR COOLED Characteristics vary depending on operating conditions ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production -20°F/50°F 1282 lbs -29°C/10°C 582 kgs 70°F/50°F 1116 lbs 21°C/10°C 506 kgs 90°F/70°F 900 lbs 32°C/21°C 408 kgs 110°F/90°F 693 lbs...

  • Page 106: Rnf1100A

    RNF1100A AIR-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production 70°F/50°F 1078 lbs 21°C/10°C 489 kgs 90°F/70°F 825 lbs 32°C/21°C 374 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Freeze Cycle Around Ice Discharge Suction Machine...

  • Page 107: Rnf1100W

    RNF1100W WATER-COOLED Characteristics vary depending on operating conditions. ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production 70°F/50°F 1158 lbs 21°C/10°C 525 kgs 90°F/70°F 960 lbs 32°C/21°C 435 kgs OPERATING PRESSURES PSIG & kPa Air Temperature Around Freeze Cycle Ice Machine Discharge Suction...

  • Page 108: Rnf2000C

    RNF2000C QUIETQUBE REMOTE CONDENSER AIR COOLED Characteristics vary depending on operating conditions ICE PRODUCTION Air Temperature 24 Hour Water Temperature Ice Production -20°F/50°F 2300 lbs -29°C/10°C 1043 kgs 70°F/50°F 1915 lbs 21°C/10°C 869 kgs 90°F/70°F 1476 lbs 32°C/21°C 670 kgs 120°F/70°F 810 lbs 49°C/21°C...

  • Page 109: Wiring Diagrams

    Diagrams Wiring Diagrams The following pages contain electrical wiring diagrams. Be sure you are referring to the correct diagram for the ice machine you are servicing. Warning Always disconnect power before working on electrical circuitry. Part Number 000015433_03 5/20...

  • Page 110: Flake Models

    Flake Models UFF0200A/UFF350A AIR-COOLED Refer to Nameplate for Voltage Rating 241304_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 111 Wiring Diagram Legend UFF0200A/UFF0350A Air-cooled Gear motor Compressor Condenser fan motor Water inlet valve Low water level safety Bin thermostat High temperature limit (snap disc) Fan cycle control Contactor Water level switch On/Off switch Low pressure safety switch Wire Color Designation White Blue Grey...

  • Page 112: Rff0320A/Rff0620A Air-Cooled

    RFF0320A/RFF0620A AIR-COOLED Refer to Nameplate for Voltage Rating 241182_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 113 Wiring Diagram Legend RFF0320A/RFF0620A Air-cooled Gear motor Compressor Fan motor Water inlet valve Low water level switch Bin thermostat Fan cycle control Contactor Water level switch Chute safety switch High pressure safety switch On/Off switch Low pressure safety switch Rotation sensor Compressor time delay by-pass Wire Color Designation White...

  • Page 114: Rff1220C Quietqube Head Section

    RFF1220C QUIETQUBE HEAD SECTION Refer to Nameplate for Voltage Rating Connections • A, B, & C connect to a remote panel when used - Jumper must be removed when remote panel is used • 1 & 2 connect to line voltage •...
  • Page 115 Wiring Diagram Legend RFF1220C Head Section Gear motor Water inlet valve Low water level safety Bin thermostat Water level switch Ice chute safety switch On/Off switch Rotation sensor Compressor time delay by-pass Solenoid valve Relay Wire Color Designation White Blue Grey Brown Black...

  • Page 116: Rff1300A Air-Cooled

    RFF1300A AIR-COOLED Refer to Nameplate for Voltage Rating 2411981_01 See page 145 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 117 Wiring Diagram Legend RFF1300A Air-cooled Gear motor Compressor Fan motor Water inlet valve Low water level switch Bin thermostat Fan cycle control Contactor Water level switch Chute safety switch High pressure safety switch On/Off switch Low pressure safety switch Rotation sensor Compressor time delay bypass Solenoid valve Wire Color Designation...

  • Page 118: Rff1300W Water-Cooled

    RFF1300W WATER-COOLED Refer to Nameplate for Voltage Rating BK BN See page 145 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 119 Wiring Diagram Legend RFF1300W Water-cooled Gear motor Compressor Water inlet valve Low water level switch Bin thermostat Contactor Water level switch Chute safety switch High pressure safety switch On/Off switch Low pressure safety switch Rotation sensor Compressor time delay bypass Solenoid valve Wire Color Designation Grey...

  • Page 120: Rnf2000C Quietqube Head Section

    RNF2000C QUIETQUBE HEAD SECTION Refer to Nameplate for Voltage Rating Connections • A, B, & C connect to a remote panel when used - Jumper must be removed when remote panel is used • 1 & 2 connect to line voltage •...
  • Page 121 Wiring Diagram Legend RNF2000C Head Section Gear Motor Water inlet valve Low water level safety Bin thermostat Water level switch Ice chute safety switch On/Off switch Rotation sensor Compressor time delay by-pass Solenoid Valve Relay Wire Color Designation White Blue Grey Brown Black...

  • Page 122: Rff2200C Quietqube Head Section

    RFF2200C QUIETQUBE HEAD SECTION Refer to Nameplate for Voltage Rating Connections • A, B, & C connect to a remote panel when used - Jumper must be removed when remote panel is used • 1 & 2 connect to line voltage •...
  • Page 123 Wiring Diagram Legend RFF2200C Head Section Gear motor Water inlet valve Low water level safety Bin thermostat Water level switch Ice chute safety switch On/Off switch Rotation sensor Compressor time delay by-pass Solenoid valve Relay Wire Color Designation White Blue Grey Brown Black...

  • Page 124: Rff2500A Air-Cooled

    RFF2500A AIR-COOLED Refer to Nameplate for Voltage Rating Connections • A & B connect to a remote panel when used - Jumper must be removed when remote panel is used • C & D energize a remote alarm indication when used 241142_02 See page 145 for compressor start component wiring.
  • Page 125 Wiring Diagram Legend RFF2500A Air-Cooled Gear motor Compressor Condenser fan motor Water inlet valve Low water level safety Bin thermostat Fan cycle control Contactor Water level switch Ice chute safety switch High pressure safety switch Compressor relay On/Off switch Compressor time delay Low pressure cut out Compressor time delay relay Rotation sensor...

  • Page 126: Nugget Models

    Nugget Models UNF0200A/UNF0300A AIR-COOLED Refer to Nameplate for Voltage Rating 24683_05 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 127 Wiring Diagram Legend UNF0200A/UNF0300A Air-cooled Gear Motor Compressor Condenser fan motor Water Inlet valve Evaporator low temperature safety thermostat Low water level safety Bin thermostat High temperature limit (snap disc) Fan cycle control Contactor Water level switch Compressor relay On/Off switch Wire Color Designation White Blue...

  • Page 128: Rnf0320A Air-Cooled

    RNF0320A AIR-COOLED Refer to Nameplate for Voltage Rating 241289_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 129 Wiring Diagram Legend RNF0320A Air-cooled Gear Motor Compressor Condenser fan motor Water inlet valve Evaporator low temperature safety thermostat Low water level safety Bin thermostat Fan cycle control Contactor Water level switch Ice chute safety switch On/Off switch Compressor time delay Compressor time delay by-pass Wire Color Designation White...

  • Page 130: Rnf0620A Air-Cooled

    RNF0620A AIR-COOLED Refer to Nameplate for Voltage Rating BK BN 241182_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 131 Wiring Diagram Legend RNF0620A Air-cooled Gear Motor Compressor Condenser fan motor Water inlet valve Low water level safety Bin thermostat Fan cycle control Contactor Water level switch Ice chute safety switch High pressure cut out On/Off switch Low pressure cut out Rotation sensor Compressor time delay by-pass Wire Color Designation...

  • Page 132: Rnf0620W Water-Cooled

    RNF0620W WATER-COOLED Refer to Nameplate for Voltage Rating 241182_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 133 Wiring Diagram Legend RNF0620W Water-cooled Gear Motor Compressor Water inlet valve Low water level safety Bin thermostat Contactor Water level switch Ice chute safety switch High pressure cut out On/Off switch Low pressure cut out Rotation sensor Compressor time delay by-pass Wire Color Designation White Blue...

  • Page 134: Rnf1020C Quietqube Head Section

    RNF1020C QUIETQUBE HEAD SECTION Refer to Nameplate for Voltage Rating Connections • A, B, & C connect to a remote panel when used - Jumper must be removed when remote panel is used • 1 & 2 connect to line voltage •...
  • Page 135 Wiring Diagram Legend RNF1020C Head Section Gear Motor Water inlet valve Low water level switch Bin thermostat Water level switch Chute safety switch Relay On/Off switch Rotation sensor Compressor time delay by-pass (Service Staff only) Solenoid Valve Wire Color Designation Orange White Blue...

  • Page 136: Rnf1100A Air-Cooled

    RNF1100A AIR-COOLED Refer to Nameplate for Voltage Rating 241198_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 137 Wiring Diagram Legend RNF1100A Air-cooled Gear Motor Compressor Condenser fan motor Water inlet valve Low water level safety Bin thermostat Fan cycle control Contactor Water level switch Ice chute safety switch High pressure cut out On/Off switch Low pressure cut out Rotation sensor Compressor time delay by-pass Solenoid...

  • Page 138: Rnf1100W Water-Cooled

    RNF1100W WATER-COOLED Refer to Nameplate for Voltage Rating 241198_01 See page 144 for compressor start component wiring. Part Number 000015433_03 5/20...
  • Page 139 Wiring Diagram Legend RNF1100W Water-Cooled Gear Motor Compressor Water inlet Valve Low Water Level Switch Bin Thermostat Contactor Water level switch Chute safety switch High pressure safety switch On/Off switch Low pressure safety switch Rotation sensor Compressor time delay by-pass (Service staff only) Solenoid Valve Wire Color Designation White...

  • Page 140: Condensing Units

    Condensing Units RCUF CONDENSING UNIT 1PH Refer to Nameplate for Voltage Rating Part Number 000015433_03 5/20...
  • Page 141 Wiring Diagram Legend RCUF Condensing Unit High pressure cutout control Thermostat - Receiver heater Receiver heater RCUF1200 1 heater - RCUF1000 2 heaters Low pressure cutout control Contactor coil Contactor contacts Condenser fan motor Condenser fan motor run capacitor Compressor Compressor overload Compressor run capacitor Compressor relay...

  • Page 142: Rcuf Condensing Unit 3Ph

    RCUF CONDENSING UNIT 3PH Refer to Nameplate for Voltage Rating Part Number 000015433_03 5/20...
  • Page 143 Wiring Diagram Legend RCUF Condensing Unit High pressure cutout control Thermostat - Receiver heater Receiver heater Low pressure cutout control Contactor coil Contactor contacts Condenser fan motor Condenser fan motor run capacitor Compressor Part Number 000015433_03 5/20...

  • Page 144: Compressor Start Component Wiring

    Compressor Start Component Wiring UFF0200/UNF0200 UNF0300/RFF0320/UFF0350/UNF0350/RFF0620 (YEL) (YEL) Part Number 000015433_03 5/20...

  • Page 145: Rff1300/Rff2500

    RFF1300/RFF2500 (YEL) (YEL) Compressor Wiring Legend Compressor Run Capacitor Start Capacitor Relay Overload Part Number 000015433_03 5/20...
  • Page 146 THIS PAGE INTENTIONALLY LEFT BLANK Part Number 000015433_03 5/20...

  • Page 147: Refrigeration Tubing Schematics

    Refrigeration Tubing Schematics UFF0200/UFF0350/UNF0200/UNF0300 Tubing Diagram Legend Compressor Condenser Liquid Line Drier Capillary tube Accumulator Heat Exchanger Evaporator Part Number 000015433_03 5/20...

  • Page 148: Rff0320/Rnf0320 Air-Cooled

    RFF0320/RNF0320 AIR-COOLED Tubing Diagram Legend Compressor Condenser Liquid Line Drier Heat Exchanger Automatic Expansion Valve Evaporator Part Number 000015433_03 5/20...

  • Page 149: Rff0620/Rnf0620/Rnf1100 Air & Water-Cooled

    RFF0620/RNF0620/RNF1100 AIR & WATER-COOLED Tubing Diagram Legend Compressor Condenser (Air or Water-cooled) Liquid Line Drier Liquid Line Solenoid Valve Suction Accumulator Thermostatic Expansion Valve Liquid Accumulator Evaporator Part Number 000015433_03 5/20...

  • Page 150: Rnf1020C Quietqube Head Section & Rcuf1000

    RNF1020C QUIETQUBE HEAD SECTION & RCUF1000 CONDENSING UNIT Part Number 000015433_03 5/20...
  • Page 151 Tubing Diagram Legend Compressor Check Valve Head Pressure Control Valve Condenser (air or water cooled) Receiver Condensing unit Liquid Line Drier Liquid Line Shut-off Valve Ice Machine Liquid Line Drier Liquid Line Solenoid Valve Thermostatic Expansion Valve Evaporator S Trap (20’ + Rise Only) Suction Line Shut-off Valve Suction Line Filter Suction Accumulator...

  • Page 152: Rff1220C & Rcuf1000 Condensing Unit

    RFF1220C & RCUF1000 CONDENSING UNIT Part Number 000015433_03 5/20...
  • Page 153 RFF1220C & RCUF1000 Tubing Diagram Legend Compressor Check Valve Head Pressure Control Valve Condenser (air or water cooled) Receiver Condensing Unit Liquid Line Drier Liquid Line Shut-off Valve Ice Machine Liquid Line Drier Liquid Line Solenoid Valve Thermostatic Expansion Valve Evaporator Suction Line Shut-off Valve Suction Line Filter...

  • Page 154: Rnf2000C Quietqube Head Section & Rcuf2200

    RNF2000C QUIETQUBE HEAD SECTION & RCUF2200 CONDENSING UNIT Part Number 000015433_03 5/20...
  • Page 155 Tubing Diagram Legend Compressor Check Valve Head Pressure Control Valve Condenser (air or water cooled) Receiver Condensing Unit Liquid Line Drier Liquid Line Shut-off Valve Ice Machine Liquid Line Drier Liquid Line Solenoid Valve Thermostatic Expansion Valve Evaporator Liquid Accumulator Suction Line Shut-off Valve Suction Line Filter Suction Accumulator...

  • Page 156: Rff2200C Quietqube Head Section & Rcuf2200

    RFF2200C QUIETQUBE HEAD SECTION & RCUF2200 CONDENSING UNIT Part Number 000015433_03 5/20...
  • Page 157 Tubing Diagram Legend Compressor Check Valve Head Pressure Control Valve Condenser (air or water cooled) Receiver Condensing unit Liquid Line Drier Liquid Line Shut-off Valve Ice Machine Liquid Line Drier Liquid Line Solenoid Valve Thermostatic Expansion Valve Liquid Accumulator Evaporator Suction Line Shut-off Valve Suction Line Filter Suction Accumulator...

  • Page 158: Rff1300 Air & Water-Cooled

    RFF1300 AIR & WATER-COOLED Tubing Diagram Legend Compressor Condenser Liquid Line Drier Liquid Line Solenoid Valve Suction Accumulator Thermostatic Expansion Valve Liquid Accumulator Evaporator Part Number 000015433_03 5/20...

  • Page 159: Rff2500 Air-Cooled

    RFF2500 AIR-COOLED Tubing Diagram Legend Compressor Condenser Liquid Line Drier Liquid Line Solenoid Valve Suction Accumulator Thermostatic Expansion Valve Liquid Accumulator Evaporator Part Number 000015433_03 5/20...
  • Page 160 THIS PAGE INTENTIONALLY LEFT BLANK Part Number 000015433_03 5/20...
  • Page 164 MANITOWOC ICE 2110 SOUTH 26TH STREET MANITOWOC, WI 54220 844-724-2273 WWW.MANITOWOCICE.COM ©2020 Welbilt Inc. except where explicitly stated otherwise. All rights reserved. Part Number 000015433_03 5/20...

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