Welbilt Manitowoc RCU1075 Technician'S Handbook Download Page 171

Page: 171 / 288

Part Number 000007661 Rev02 02/20

171

LOW PRESSURE CUTOUT (LPCO) CONTROL

Model

Cut-Out

Cut-In

RF Models

RF0644 / R0F650

RF1200

RFS Models

RFS1200

RFS2300C-RCU2375

RNS Models

RNS0300 / RNS0600

RNS1000

7 psig ±2

(.5 bar ±.2)

36 psig ±2

(2.5 bar ±.2)

RF2300

12 psig ±2

(.8 bar ±.2)

Manual Reset

RF Models

RF1200C-RCU1075

RFS Models

RFS1200C-RCU1075

RF2300C-RCU2375

RFS2300C-RCU2375

RN Models

RN1000C-RCU1075

RNS Models

RNS1078-RCU1098

RN1200C-RCU1275

12 psig ±3

(.8 bar ±.2)

35 psig ±5

(2.4 bar ±.4)

Summary of Contents for Manitowoc RCU1075

Page 1: ...Part Number 000007661 Rev02 02 20 RF RFS RN RNS Models Flake Nugget Ice Machine Technician s Handbook Engineered for Ease...

Page 2: ......

Page 3: ...roughout this handbook you will see the following types of safety notices nWarning Text in a Warning box alerts you to a potential personal injury situation Be sure to read the Warning statement befor...

Page 4: ...dbook you will see the following types of procedural notices Important Text in an Important box provides you with information that may help you perform a procedure more efficiently Disregarding this i...

Page 5: ...d maintenance are essential for maximum performance and trouble free operation of your equipment Visit our website www welbilt com for manual updates translations or contact information for service ag...

Page 6: ...refrigerant charge Installation and repairs are to be performed by properly trained technicians aware of the dangers of dealing with high voltage electricity and refrigerant under pressure The techni...

Page 7: ...nce and knowledge unless they have been given supervision concerning use of the appliance by a person responsible for their safety Do not allow children to play with this appliance nWarning All covers...

Page 8: ...ity of the equipment owner to perform a Personal Protective Equipment Hazard Assessment to ensure adequate protection during maintenance procedures nWarning Two or more people are required to move thi...

Page 9: ...ncluded Do not unplug by pulling on cord To unplug grasp the plug not the cord Unplug from outlet when not in use and before servicing or cleaning Do not operate any appliance with a damaged cord or p...

Page 10: ...THIS PAGE INTENTIONALLY LEFT BLANK...

Page 11: ...4 Drain Connections 24 Ice Machine Clearance Requirements 25 Cooling Tower Applications 26 Electrical Service 27 Voltage 27 Fuse Circuit Breaker 27 Ground Fault Interrupter Circuit GFIC 27 Maximum Bre...

Page 12: ...RF0300 Troubleshooting 71 Self Contained Air Cooled 71 RFS0300 RNS0300 Troubleshooting 77 Self Contained Air Cooled 77 RF0644 RF0650 RNS0600 RNS1000 RF1200 RFS1200 Troubleshooting 83 Self Contained A...

Page 13: ...n Troubleshooting 165 Capillary Tube Models 165 Thermostatic Expansion Valve Models 166 Component Specifications Bin Thermostat 167 Low Temperature Thermostat Evaporator safety thermostat 167 High Pre...

Page 14: ...196 RFS1278C With RCU1075 197 RFS2300A 198 RFS2300W 199 RFS2378C with RCU2375 200 RN Nugget Models 201 RN0408A 201 RN1008A 202 RN1009W 203 RN1408A 204 RN1409W 205 RN1078C With RCU1075 206 RN1278C With...

Page 15: ...r Cooled Water cooled 238 RF2378C RFS2378C QuietQube Head Section 240 Condensing Units 242 RCU Condensing Unit 1ph 242 RCU Condensing Unit 3ph 244 Rack Models 246 RF1279R RFS1279R Head Section 246 RF2...

Page 16: ...200 Water cooled 270 RF2300 RFS2300 Air cooled 272 RF2300 RFS2300 Water cooled 274 RF1200C RFS1200C QuietQube Head Section RCU1075 Condensing Unit 276 RF2300C RFS2300 QuietQube Head Section RCU2375 Co...

Page 17: ...D MODELS Flake Models Self Storage Air Cooled Self Storage Water Cooled Modular Air Cooled Modular Water Cooled RF0244A RF0266A RF0385A RF0388A RF0399A RF0300A RFS0300A RF0644A RF0650A RF0650W RFS0650...

Page 18: ...oled RNS0244A RNS0308A RNS0385A RN0408A RNS1008A RN1008A RN1009W RN1408A RN1409W QUIETQUBE MODELS WITH REMOTE CONDENSING UNITS Flake Models QuietQube Head RCU Remote Condensing Unit RF1278C RCU1075 RF...

Page 19: ...s 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 DE...

Page 20: ...00 2400 RF0385A 3500 5200 RF0388A 3500 5200 RF0399A 3500 5200 RF0644A 7700 10250 RF0650A 5200 7700 RF0650W 5200 7700 RF1200A 7500 14000 RF1200W 7500 14000 RF1200C 7500 1400 RF2300A 15700 29500 RF2300W...

Page 21: ...RN1009W 11300 12800 RN1078C 11300 12800 RN1278C 7500 14000 RN1408A 16000 16400 RN1409W 16000 16400 RNS Nugget Models RNS0244A 2400 5000 RNS0308A 3075 4100 RNS0385 3500 4600 RNS0608A 5200 7700 RNS0609W...

Page 22: ...THIS PAGE INTENTIONALLY LEFT BLANK 22 Part Number 000007661 Rev02 02 20...

Page 23: ...3 C The location must be free of airborne and other contaminants The location must not be near heat generating equipment or in direct sunlight The location must be capable of supporting the weight of...

Page 24: ...lator from your Manitowoc distributor A water shut off valve is required to clean the ice machine A union for both the ice making and condenser water lines is required Water inlet lines require insula...

Page 25: ...ater Cooled QuietQube Air Cooled Back 5 12 7 cm 5 12 7 cm 5 12 7 cm Sides Top 8 20 3 cm 8 20 3 cm 8 20 3 cm RCU Units Remote Condensing Unit Front Back 24 61 0 cm Sides Top 6 15 2 cm NOTE Allowance mu...

Page 26: ...know the amount of heat rejection and pressure drop through the condenser and water valves inlet and outlet when using a cooling tower on an ice machine Water entering the condenser must not be lower...

Page 27: ...RCUIT BREAKER A separate fuse circuit breaker must be provided for each ice machine Circuit breakers must be H A C R rated does not apply in Canada nWarning The ice machine must be grounded in accorda...

Page 28: ...RNS1009WZ 251 11 2 15 RNS0608A 261 8 7 15 RNS0608A 161 16 3 25 RNS0609W 261 8 2 15 RNS0609W 161 15 4 25 RNS0608AZ 251 7 7 15 RNS0609WZ 251 7 1 15 RNS1078C 261 1 4 15 RNS1078C 161 2 9 15 Due to continu...

Page 29: ...se nWarning Wear rubber gloves and safety goggles and or face shield when handling ice machine Cleaner or Sanitizer EXTERIOR CLEANING Remove dust and dirt off exterior surfaces with mild household dis...

Page 30: ...ion Step 2 Remove all ice from the bin Step 3 Turn off the ice making water supply and drain water from evaporator and reservoir Step 4 Remove the top cover from water reservoir Step 5 Follow the char...

Page 31: ...ter all of the cleaner water solution has been added turn on the ice making water supply Continue the freeze cycle for 10 minutes to remove the cleaning solution from the water circuit Step 9 Place th...

Page 32: ...ice machine will discontinue the cleaning cycle if the water float switch opens Step 16 After all of the sanitizer water solution has been added to the reservoir turn on the ice making water supply S...

Page 33: ...S0385 RF0388 RF0399 RF0644 14 oz 400 ml 9 oz 266 ml 5 oz 148 ml RF0300 RFS0300 RNS0308 RF0650 RFS0650 17 oz 500 ml 11 oz 325 ml 6 oz 177 ml RF1200 RFS1200 34 oz 1 L 23 oz 680 ml 11 oz 325 ml RF2300 RF...

Page 34: ...d part s in a properly mixed solution of cleaner and water Solution Type Water Mixed With Cleaner 1 gal 4 L 16 oz 500 ml cleaner Part Number 000000084 4 Use a soft bristle brush or sponge NOT a wire b...

Page 35: ...F models have this type of ice chute also 1 Place the toggle switch in the OFF position turn off the water supply and disconnect electrical power to the ice machine 2 Disconnect water supply 3 Remove...

Page 36: ...he ice chute listed on the previous page 1 Place the toggle switch in the OFF position turn off the water supply and disconnect electrical power to the ice machine 2 Disconnect water supply 3 Remove w...

Page 37: ...BACK AND LIFT TO REMOVE ICE CHUTE SWITCH ACTUATOR REMOVAL RFS0300 RF0650 RF1200 RFS1200 RF2300 RFS2300 1 Pull to remove nylon end cap 2 Slide pin to remove 3 Remove both sections of the pressure swit...

Page 38: ...aner and water Amount of Luke Warm Water Amount of Cleaner Part Number 000000084 1 gallon 4 Liters 4 ounces 120 ml Step 6 Remove top cover from the water reservoir and fill the evaporator and reservoi...

Page 39: ...ression nozzle with potable water and then soak in sanitizer water solution Step 12 Move the compressor rocker switch to the ON position The ice machine will make ice with the sanitizer water solution...

Page 40: ...re cleaning or sanitizing Step 18 Clean and sanitize the bin dispenser Disconnect power to the dispenser to prevent injury Use the cleaner and sanitizer ratios from the charts on Page 21 Heavy accumul...

Page 41: ...p and water solution 2 Shine a flashlight through the condenser to check for dirt between the fins Blow compressed air through the condenser fins from the inside or use a commercial condenser coil cle...

Page 42: ...rranty Follow the procedure below 1 Disconnect the electric power at the circuit breaker or the electric service switch 2 Turn off the water supply 3 Disconnect and drain the incoming ice making water...

Page 43: ...toggle switch is placed in the ON position the following controls must be in the closed position before the ice machine will start A Bin Thermostat B Low Evaporator Temperature Thermostat C Low Water...

Page 44: ...tat B Ice Chute Safety Switch C Low Water Level Switch D Low Evaporator Temperature Thermostat Placing the toggle switch in the ON position starts the gear motor and a 10 minute compressor time delay...

Page 45: ...High Pressure Cut out Switch E Low Pressure Cut Out Switch Placing the toggle switch in the ON position starts the gear motor and a compressor time delay The compressor starts and the float valve con...

Page 46: ...hute Safety Switch D Low Pressure Switch E Low Water Level Switch Placing the toggle switch in the ON position starts the gear motor After the rotation speed sensor verifies correct rotation the time...

Page 47: ...ough to close the low pressure control the contactor coil energizes and the compressor starts The refrigerant pressure will increase and close the fan cycling pressure control and the condenser fan mo...

Page 48: ...the toggle switch in the ON position starts the gear motor After the rotation speed sensor verifies correct rotation the time delay ends and the liquid line and suction solenoid valves energize The ic...

Page 49: ...rocker switch is moved to ON B Ice does not contact the bin thermostat bulb C The water reservoir is full of water With power supplied and the compressor rocker switch in the ON position the gear moto...

Page 50: ...L2 COMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OARD K C...

Page 51: ...OMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OARD K C A L...

Page 52: ...PRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OARD K C A L B...

Page 53: ...tional 60 seconds GRD L1 L1 L2 L2 L2 L2 L2 COMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT...

Page 54: ...COMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OARD K C A...

Page 55: ...OR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OARD K C A L B GEARM...

Page 56: ...56 Part Number 000007661 Rev02 02 20...

Page 57: ...gle switch in the ON position starts the gear motor and refrigeration system The water level sensor controls the water inlet valve and water level The freeze cycle ends when ice contact opens the tran...

Page 58: ...dicate normal off conditions Red lights indicate an alarm condition The sequence below is for normally operating machines For alarm conditions refer to troubleshooting which starts on page 133 Step 1...

Page 59: ...ER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRESS R LO PRESS R DRAIN CLOG R TIME DELAY Y LO WATER R CPU G HI WATER R Step 3 Purge cycle normal light operation After 1 to 2...

Page 60: ...position starts the gear motor and energizes the liquid line solenoid valve The refrigerant pressure at the condensing unit increases and the low pressure switch closes and starts the refrigeration s...

Page 61: ...dicate normal off conditions Red lights indicate an alarm condition The sequence below is for normally operating machines For alarm conditions refer to troubleshooting which starts on page 133 Step 1...

Page 62: ...ER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRESS R LO PRESS R DRAIN CLOG R TIME DELAY Y LO WATER R CPU G HI WATER R Step 3 Purge cycle normal light operation After 1 to 2...

Page 63: ...due to variances in air and water temperatures Actual temperatures will seldom match the chart exactly 1 Run the ice machine a minimum of 10 minutes to allow the system to stabilize 2 Catch the ice i...

Page 64: ...e ice machine label as the initial setting and adjust as required Evaporator Low Temperature Safety Thermostat The evaporator low temperature safety thermostat protects the ice machine if the evaporat...

Page 65: ...l and overrides information listed on this page Model Bin Thermostat Setting Evaporator Thermostat Setting RF0244 5 5 RFS0244 5 6 RNS0244 5 5 RF0266 5 5 RF0300 4 7 RFS0300 3 N A RNS0308 3 6 RF0385 5 7...

Page 66: ...ickly and easily eliminate non issues RF0244 RNS0244 RF0266 RF0385 RFS0385 RF0388 RF0399 RNS0385 Troubleshooting SELF CONTAINED AIR COOLED Normal Operation When the toggle switch is placed in the ON p...

Page 67: ...to Ice Machine Toggle Switch In ON Position Move Switch To ON Position Plug In Ice Machine Reset Breaker NO YES NO YES Electrical Flowchart RF0244 RNS0244 RF0266 RF0385 RFS0385 RNS0385 RF0388 RF0399...

Page 68: ...Allow To Warm And Retest Adjusting Closes Thermostat Verify New Setting Cycles Machine On Off Yes No No Yes Evaporator Safety Thermostat Closed NO Evaporator Cold Replace Thermostat Allow Evaporator...

Page 69: ...l Switch Closed YES YES NO Reservoir Full Of Water NO Restore Water Supply Replace Water Inlet Valve Power To Water Inlet Valve Yes Water Level Switch Closed No No Repair Wiring Yes YES Replace Switch...

Page 70: ...ge To Compressor Relay Coil Gear Motor Runs NO YES NO YES Line Voltage To Gear motor Repair Wiring No Remove Auger From Evaporator Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild E...

Page 71: ...d Line Voltage To Compressor YES YES NO YES NO Verify Compressor Overload is Closed Start Components Function Fan Cycling Control Functions Condenser Fan Motor Functions Water cooled only Water Regula...

Page 72: ...rt A Bin Thermostat B Low Evaporator Temperature Thermostat C Ice Chute Safety Switch D Low Water Level Switch Placing the toggle switch in the ON position starts the gear motor and a 10 minute compre...

Page 73: ...v02 02 20 73 Power Supplied to Ice Machine Toggle Switch In ON Position Move Switch To ON Position Plug In Ice Machine Reset Breaker NO YES NO YES Electrical Flowchart RF0300 RNS0300 Switch Illuminate...

Page 74: ...llow To Warm And Retest Adjusting Closes Thermostat Verify New Setting Cycles Machine On Off Yes No No Yes Evaporator Cold Replace Thermostat Allow Evaporator To Warm And Retest Adjusting Closes Therm...

Page 75: ...l Switch Closed YES YES NO Reservoir Full Of Water NO Restore Water Supply Replace Water Inlet Valve Replace Switch or Float Assembly Power To Water Inlet Valve Yes Water Level Switch Closed No No Rep...

Page 76: ...r Wiring No Disconnect Evaporator From Gear Motor Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild Or Replace Evaporator Thaw Evaporator Yes Yes No Yes Gear Motor Centrifugal Switch...

Page 77: ...rol Functions Condenser Fan Motor Functions Water cooled only Water Regulating Valve Functions Repair Wiring Replace Contactor Line Voltage To Compressor Contactor Coil NO Repair Wiring Replace Time D...

Page 78: ...ostat B Ice Chute Safety Switch C Low Water Level Switch D High Pressure Cut out Switch E Low Pressure Cut Out Switch Placing the toggle switch in the ON position starts the gear motor and a 10 minute...

Page 79: ...v02 02 20 79 Power Supplied to Ice Machine Toggle Switch In ON Position Move Switch To ON Position Plug In Ice Machine Reset Breaker NO YES NO YES Electrical Flowchart RFS0300 RNS0300 Switch Illuminat...

Page 80: ...o Warm And Retest Adjusting Closes Thermostat Verify New Setting Cycles Machine On Off Yes No No Yes Evaporator Cold Replace LPCO Allow Evaporator To Warm And Retest Refrigerant Pressure Below Cut out...

Page 81: ...l Switch Closed YES YES NO Reservoir Full Of Water NO Restore Water Supply Replace Water Inlet Valve Replace Switch or Float Assembly Power To Water Inlet Valve Yes Water Level Switch Closed No No Rep...

Page 82: ...r Wiring No Disconnect Evaporator From Gear Motor Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild Or Replace Evaporator Thaw Evaporator Yes Yes No Yes Gear Motor Centrifugal Switch...

Page 83: ...rol Functions Condenser Fan Motor Functions Water cooled only Water Regulating Valve Functions Repair Wiring Replace Contactor Line Voltage To Compressor Contactor Coil NO Repair Wiring Replace Time D...

Page 84: ...ion starts the gear motor After the rotation speed sensor verifies 10 minutes of correct rotation the time delay ends and the compressor starts The ice machine will continue to make ice until ice cont...

Page 85: ...upplied to Ice Machine Toggle Switch In ON Position Move Switch To ON Position Plug In Ice Machine Reset Breaker NO YES NO YES Electrical Flowchart RF0644 RNS0600 RF0650 RNS1000 RF1200 RFS1200 AIR WAT...

Page 86: ...Cycles Machine On Off Yes No No Yes Evaporator Cold Replace LPCO Allow Evaporator To Warm And Retest Refrigerant Pressure Below Cut out Repair Refrigerant Leak Evacuate Recharge Yes No No Yes Yes High...

Page 87: ...lace Water Inlet Valve Replace Switch or Float Assembly Power To Water Inlet Valve Yes Water Level Switch Closed No No Repair Wiring Yes YES Replace Switch or Float Assembly Chute Switch Closed NO Adj...

Page 88: ...r motor Repair Wiring No Disconnect Evaporator From Gear Motor Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild Or Replace Evaporator Thaw Evaporator Yes Yes No Yes YES 10 Minute Ti...

Page 89: ...art Components Function Fan Cycling Control Functions Condenser Fan Motor Functions Water cooled only Water Regulating Valve Functions Repair Wiring Replace Contactor Line Voltage To Compressor Contac...

Page 90: ...and the liquid line solenoid valve opens When the refrigerant pressure is high enough to close the low pressure control the contactor coil energizes and the compressor starts The refrigerant pressure...

Page 91: ...estore Power Reset Breaker NO NO YES Electrical Flowchart RNS1000 RF1200C RFS1200C QuietQube Switch Illuminated NO YES Replace Switch Immediately Trips YES YES NO Toggle Switch In Off Position Isolate...

Page 92: ...etting Cycles Machine On Off YES NO NO YES YES Chute Switch Closed NO Adjust Or Replace Actuator Ice Contacting Actuator Remove Ice And Retest Actuator Functions Replace Switch YES NO NO YES Yes YES R...

Page 93: ...Runs NO Line Voltage To Gear motor Repair Wiring NO Disconnect Evaporator From Gear Motor Gear Motor Runs Replace Gear Motor YES NO YES YES Ice In Evaporator Rebuild Or Replace Evaporator Thaw Evapora...

Page 94: ...r Wiring Replace Rotation Sensor Time Delay NO Power To Left Time Delay Relay Coil Install Compressor Time Delay Jumper On Left Evaporator Delay Relay Contacts Closed Delay Relay Contacts Closed Yes N...

Page 95: ...lace Liquid Line Solenoid Locate and Repair Refrigerant Leak Replace LPCO Switch Replace Relay YES High Pressure Control Closed NO Resets Replace HPCO Clean Condenser Check Fan Motor Check Fan Cycle C...

Page 96: ...v02 02 20 Contactor Closed NO Replace Contactor Line Voltage To Compressor YES YES NO Verify Compressor Overload is Closed Start Components Function Fan Cycling Control Functions Condenser Fan Motor F...

Page 97: ...of correct rotation the time delay ends and the liquid line and suction solenoid valves energize The ice machine will continue to make ice until ice contacts the bin thermostat and the liquid line an...

Page 98: ...osition Restore Power Reset Breaker NO NO YES Electrical Flowchart RF1200R RFS1200R Switch Illuminated NO YES Replace Switch Immediately Trips Yes Ohm Toggle Switch Time Delays Gear Motors Water Inlet...

Page 99: ...ntacting Thermostat Remove Ice Allow To Warm And Retest Adjusting Closes Thermostat Verify New Setting Cycles Machine On Off Yes No No Yes Yes Chute Switch Closed NO Adjust Or Replace Actuator Ice Con...

Page 100: ...ir Full Of Water NO Restore Water Supply Replace Water Inlet Valve Power To Water Inlet Valve Yes Float Switch Closed No No Repair Wiring Replace Switch or Float Assembly Yes Low Water Level Switch Cl...

Page 101: ...r motor Repair Wiring No Disconnect Evaporator From Gear Motor Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild Or Replace Evaporator Thaw Evaporator Yes Yes No YES 10 Minute Time D...

Page 102: ...NO Repair Wiring Replace Rotation Sensor Time Delay No Power To Time Delay Relay Coil Install Compressor Time Delay Jumper Delay Relay Contacts Closed Delay Relay Contacts Closed Yes No Yes YES YES YE...

Page 103: ...Suction Line Solenoid YES NO Check Contactor Contacts On Both Contactors Repair Wiring Line Voltage To Liquid Line Solenoid YES NO Repair Wiring Determine Refrigeration System Issue Suction And Liquid...

Page 104: ...witch Placing the toggle switch in the ON position starts the gear motor After the rotation speed sensor verifies 10 minutes of correct rotation the time delay ends and the compressor starts The ice m...

Page 105: ...Position Restore Power Reset Breaker NO NO YES Electrical Flowchart RF2300 RFS2300 Air Water Switch Illuminated NO YES Replace Switch Immediately Trips Yes Ohm Compressor Crankcase Heater And Toggle...

Page 106: ...On Off Yes No No Yes Yes High Pressure Control Closed NO Resets Replace HPCO Clean Condenser Check Fan Motor Check Fan Cycle Control Refrigerant Pressure Above Cut out Clean Condenser Check Fan Motor...

Page 107: ...ak Evacuate Recharge Yes No No Yes Right Side Chute Switch Closed NO Adjust Or Replace Actuator Ice Contacting Actuator Remove Ice And Retest Actuator Functions Replace Switch Yes No No Yes YES YES Re...

Page 108: ...Evaporator From Gear Motor Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild Or Replace Evaporator Thaw Evaporator Yes Yes No YES 10 Minute Time Delay Expired NO Wait 10 Minutes Do...

Page 109: ...Delay Jumper On Left Evaporator Left Delay Relay Contacts Closed Left Delay Relay Contacts Closed Yes No Yes YES NO Replace Relay Line Voltage To Right Delay Relay Coil NO Repair Wiring Replace Right...

Page 110: ...S YES NO YES NO Verify Compressor Overload is Closed Start Components Function Fan Cycling Control Functions Condenser Fan Motor Functions Water cooled only Water Regulating Valve Functions Repair Wir...

Page 111: ...the liquid line solenoid valve opens When the refrigerant pressure is high enough to close the low pressure control the contactor coil energizes and the compressor starts The refrigerant pressure will...

Page 112: ...ion Restore Power Reset Breaker NO NO YES Electrical Flowchart RF2300C RFC2300C QuietQube Switch Illuminated NO YES Replace Switch Immediately Trips YES YES Toggle Switch In Off Position Isolate And O...

Page 113: ...Verify New Setting Cycles Machine On Off YES NO NO YES YES Left Side Chute Switch Closed NO Adjust Or Replace Actuator Ice Contacting Actuator Remove Ice And Retest Actuator Functions Replace Switch Y...

Page 114: ...losed NO NO Repair Wiring YES Replace Switch or Float Assembly Low Water Level Switch Closed NO Replace Switch or Float Assembly YES Do Both Gear Motors Run NO Line Voltage To Gear motors Repair Wirin...

Page 115: ...Time Delay Jumper Yes YES NO Replace Relay NO Repair Wiring Replace Left Rotation Sensor Time Delay No Power To Left Time Delay Relay Coil Install Compressor Time Delay Jumper On Left Evaporator Left...

Page 116: ...Sensor Time Delay Right Delay Relay Contacts Closed Right Delay Relay Contacts Closed YES Line Voltage To Right Delay Relay Coil NO Repair Wiring NO Power To Right Time Delay Relay Coil Install Compr...

Page 117: ...her Than LPCO Cut in Both Shut off Valves are Open Repair Replace Liquid Line Solenoid Locate and Repair Refrigerant Leak Replace LPCO Switch YES High Pressure Control Closed Resets Replace HPCO Clean...

Page 118: ...ev02 02 20 Contactor Closed NO Replace Contactor Line Voltage To Compressor YES YES NO Verify Compressor Overload is Closed Start Components Function Fan Cycling Control Functions Condenser Fan Motor...

Page 119: ...he gear motor After the rotation speed sensor verifies 10 minutes of correct rotation the time delay ends and the liquid line and suction solenoid valves energize The ice machine will continue to make...

Page 120: ...Position Restore Power Reset Breaker NO NO YES Electrical Flowchart RF2300R RFS2300R Switch Illuminated NO YES Replace Switch Immediately Trips Yes Ohm Toggle Switch Time Delays Gear Motors Water Inle...

Page 121: ...Verify New Setting Cycles Machine On Off Yes No No Yes Yes Left Side Chute Switch Closed NO Adjust Or Replace Actuator Ice Contacting Actuator Remove Ice And Retest Actuator Functions Replace Switch Y...

Page 122: ...ir Full Of Water NO Restore Water Supply Replace Water Inlet Valve Power To Water Inlet Valve Yes Float Switch Closed No No Repair Wiring Replace Switch or Float Assembly Yes Low Water Level Switch Cl...

Page 123: ...r motor Repair Wiring No Disconnect Evaporator From Gear Motor Ice In Evaporator Gear Motor Runs Replace Gear Motor Yes No Rebuild Or Replace Evaporator Thaw Evaporator Yes Yes No YES 10 Minute Time D...

Page 124: ...Delay Jumper On Left Evaporator Left Delay Relay Contacts Closed Left Delay Relay Contacts Closed Yes No Yes YES NO Replace Relay Line Voltage To Right Delay Relay Coil NO Repair Wiring Replace Right...

Page 125: ...61 Rev02 02 20 125 YES Line Voltage To Contactor Coil NO Repair Wiring Yes Contactor Closed YES NO Replace Contactor Line Voltage To Suction Line Solenoid YES NO Check Contactor Contacts On Both Conta...

Page 126: ...rt Number 000007661 Rev02 02 20 Line Voltage To Liquid Line Solenoid YES NO Repair Wiring Determine Refrigeration System Issue Suction And Liquid Line Solenoid Valves Open YES NO Replace Defective Val...

Page 127: ...fter 20 minutes GRD L1 L1 L2 L2 L2 L2 L2 COMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT PO...

Page 128: ...OMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OARD K C A L...

Page 129: ...L2 L2 L2 COMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POWER WATER SENSOR CONT R OL B OAR...

Page 130: ...control board GRD L1 L1 L2 L2 L2 L2 L2 COMPRESSOR F AN DRIVE DR C 20M 60M 2ND WTR B T B E RESET GRD G B W F AN BL ACK WHITE BL ACK BL ACK R ORANGE S S L COMPRESSOR C RED BL ACK BL ACK WHITE INPUT POW...

Page 131: ...losed NO Replace Thermostat Ice Contacting Thermostat Remove Ice Allow To Warm And Retest Adjusting Closes Thermostat Verify New Setting Cycles Machine On Off Yes No No Yes Power Supplied to Ice Machi...

Page 132: ...No Yes Time Delay BT Light Off 20 Minute Time Delay Period Depress Control Board Reset Button To Override Delay Period Reservoir Full Line Voltage To Water Inlet Valve Clean Repair Or Replace Water L...

Page 133: ...Button To Override Delay Period Press Control Board Reset Button Flashing Stops Gear Motor And Compressor Energize Determine Cause Of Water Loss Yes No Compressor C Light On Compressor Switch In On Po...

Page 134: ...sor Windings Are OK Repair Wiring Line Voltage Control Board Compressor And Fan Terminals NO or Only One Component Has Line Voltage Yes Replace Control Board Verify Clearances Ambient Are OK Filter Co...

Page 135: ...ct Motor From Evaporator YES 60M Light On 2nd Light On Locked Out Due To Over Torque Condition Verify No Ice In Evaporator Depress Control Board Reset Button Perform Heavily Scaled Cleaning Procedure...

Page 136: ...icators use the flowchart to systematically eliminate issues NOTE Each relay on the control board has a light adjacent to the relay to indicate the relay coil has power Indicator light legend ON OFF O...

Page 137: ...s not full Shuttle is jammed or damaged Thermostat is out of position or defective PURGE Y POWER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRESS R LO PRESS R DRAIN CLOG R TI...

Page 138: ...TER R CPU G HI WATER R 6 No ice Drain Clog and Service lights on Drain obstructed Defective drain solenoid valve PURGE Y POWER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRES...

Page 139: ...o Water light on No water Low water pressure Defective solenoid valve or control board relay PURGE Y POWER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRESS R LO PRESS R DRAIN...

Page 140: ...ENSOR FOR MORE THAN 120 SECONDS Soft Error The control board stops the ice machine energizes the Lo Water Service lights and leaves the water solenoid energized When water contacts the low water probe...

Page 141: ...ond time within six hours of the first failure The ice machine must be reset by pressing the control board reset button HI PRESSURE Soft Error If the refrigeration pressure exceeds 425 psi 2930 kPa th...

Page 142: ...lace Control Board NO Power Supplied to Ice Machine Control board Turn On Switch NO YES NO Control Board CPU Light Flashing Rocker Switch in ON position NO Plug In Ice Machine Reset Breaker YES Remove...

Page 143: ...Wiring Repair Or Replace Repair Or Replace Shuttle Yes Time Delay Light OFF Time Delay Period Expired Wait For Delay To Expire NO Clear Ice Shuttle in up position NO NO YES YES NO NO YES Light On Sens...

Page 144: ...Clear Drain Or Replace Drain Solenoid YES No Water Drains From Evaporator Replace Control Board Level Ice Machine To Allow Complete Drainage Line Voltage At Drain Solenoid Ice Machine Level Remove Res...

Page 145: ...On Light Off Clear Drain Test Run To Verify Operation NO YES Verify Clearances Ambient Are OK Filter Condenser Are Clean Condenser Fan Motor Functions Replace High Pressure Cut Out Water cooled Model...

Page 146: ...uit Breaker On Control Box Tripped YES NO Line Voltage To Gear Motor NO NO Press Control Board Reset Button To Clear Error Replace Control Board NO Gear Motor Runs YES Clean Ice Machine Install Water...

Page 147: ...er Connect Sensor Wires Clean and Dry Water Level Probes Water is Supplied Voltage Water Inlet Valve NO YES YES NO Restore Water Supply NO YES Replace Water Inlet Valve YES NO Voltage Water Inlet Valv...

Page 148: ...Control Board Reset Button Replace Control Board Clean Dry Reinsert Water Level Probes Voltage Water Inlet Valve YES NO Replace Water Inlet Valve NO YES Replace Sensor Control Board if Required Water...

Page 149: ...Inlet Valve Closes 100 Water Level Probe Functions Replace Control Board NO YES Line Voltage At Compressor YES NO Verify Compressor Overload is Closed Start Components Function Compressor Windings Are...

Page 150: ...ndicators use the flowchart to systematically eliminate issues NOTE Each relay on the control board has a light adjacent to the relay to indicate the relay coil has power Indicator light legend ON OFF...

Page 151: ...s not full Shuttle is jammed or damaged Thermostat is out of position or defective PURGE Y POWER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRESS R LO PRESS R DRAIN CLOG R TI...

Page 152: ...TER R CPU G HI WATER R 6 No ice Drain Clog and Service lights on Drain obstructed Defective drain solenoid valve PURGE Y POWER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRES...

Page 153: ...o Water light on No water Low water pressure Defective solenoid valve or control board relay PURGE Y POWER G LOW BIN G AUGER ON G REFRIG ON G CLEANING Y SERVICE R HI AMPS R HI PRESS R LO PRESS R DRAIN...

Page 154: ...nergized When water contacts the low water probe the ice machine will resume ice making Hard Error The water level sensor has 4 probes and the 2 longest probes reach to the bottom of the water reservo...

Page 155: ...frigeration pressure exceeds 425 psi 2930 kPa the ice machine will turn off energize the Hi Press light and initiate a 60 minute delay period If the refrigeration pressure is below 295 psi 2034 kPa at...

Page 156: ...e Control board Turn On Switch NO YES NO Control Board CPU Light Flashing Rocker Switch in ON position NO Plug In Ice Machine Reset Breaker YES Remove Restore Line Voltage Then Depress Reset Button On...

Page 157: ...Wiring Repair Or Replace Repair Or Replace Shuttle Yes Time Delay Light OFF Time Delay Period Expired Wait For Delay To Expire NO Clear Ice Shuttle in up position NO NO YES YES NO NO YES Light On Sens...

Page 158: ...Clear Drain Or Replace Drain Solenoid YES No Water Drains From Evaporator Replace Control Board Level Ice Machine To Allow Complete Drainage Line Voltage At Drain Solenoid Ice Machine Level Remove Res...

Page 159: ...ean and Dry Drain Sensor Light On Light Off Clear Drain Test Run To Verify Operation NO YES Verify Clearances Ambient Are OK Condenser Is Clean Condenser Fan Motor Functions Replace High Pressure Cut...

Page 160: ...uit Breaker On Control Box Tripped YES NO Line Voltage To Gear Motor NO NO Press Control Board Reset Button To Clear Error Replace Control Board NO Gear Motor Runs YES Clean Ice Machine Install Water...

Page 161: ...er Connect Sensor Wires Clean and Dry Water Level Probes Water is Supplied Voltage Water Inlet Valve NO YES YES NO Restore Water Supply NO YES Replace Water Inlet Valve YES NO Voltage Water Inlet Valv...

Page 162: ...Control Board Reset Button Replace Control Board Clean Dry Reinsert Water Level Probes Voltage Water Inlet Valve YES NO Replace Water Inlet Valve NO YES Replace Sensor Control Board if Required Water...

Page 163: ...At Liquid Line Solenoid Valve YES NO Verify Refrigerant Pressure is Higher Than LPCO Cut in Both Shut off Valves are Open Repair Replace Liquid Line Solenoid Locate and Repair Refrigerant Leak Replace...

Page 164: ...Line Voltage At Compressor YES NO Verify Compressor Overload is Closed Start Components Function Compressor Windings Are OK Repair Wiring Compressor Running NO Test Run To Verify Operation YES Contact...

Page 165: ...Part Number 000007661 Rev02 02 20 165 YES Ice Has Excessive Water Content YES NO Verify Water Inlet Valve Closes 100 Water Level Probe Functions Test Run To Verify Operation...

Page 166: ...es Low on Refrigerant Overcharge of Refrigerant Non Condensible in System Restricted Capillary Tube Discharge Pressure Low High High Low Suction Pressure Low High High Low Evaporator Inlet Temperature...

Page 167: ...on Suction Line Restriction Or Expansion Valve Starving Flooding Expansion Valve or Loose Sensing Bulb when used Discharge Pressure Low High High Low High Suction Pressure Low High High Low High Evapo...

Page 168: ...1 6 C 1 RF Models RF0300 RF0600 RFS Models RFS0300 RFS0650 4 36 F 1 2 2 C 1 42 F 1 5 6 C 1 LOW TEMPERATURE THERMOSTAT Evaporator safety thermostat Model Setting Cut Out Cut In RF Models RF0244 RF0266...

Page 169: ...RF1200 RF2300 000005761 435 psig 10 3000 kPa 69 30 bar 69 Manual Reset RN0400 000007111 425 psig 10 2930 kPa 69 29 bar 69 287 psig 10 1979 kPa 69 19 79bar 69 Auto Reset RN1000 RN1400 000007268 450 psi...

Page 170: ...ime Delay Period First 1 To 7 Faults Red Solid Lockout 8 Consecutive Faults Due To A Speed Fault Remove Restore Power To Reset Red Blinking Slowly Lockout 8 Consecutive Faults Due To A Short Circuit N...

Page 171: ...ls RFS1200 RFS2300C RCU2375 RNS Models RNS0300 RNS0600 RNS1000 7 psig 2 5 bar 2 36 psig 2 2 5 bar 2 RF2300 12 psig 2 8 bar 2 Manual Reset RF Models RF1200C RCU1075 RFS Models RFS1200C RCU1075 RF2300C...

Page 172: ...0650 RF1200 RF2300 RFS Models RFS0300 RFS0650 RNS Models RNS0244 RNS0300 RNS0385 RNS0600 200 5 15 17 bar 34 250 5 17 23 bar 34 RF Models RF0244 RF0300 RF0385 RF0388 RF0399 RF0644 RF0650 RF1200 RF2300...

Page 173: ...11 25 oz 320 g RF0388A 11 25 oz 320 g RF0399A 11 25 oz 320 g RF0644A 18 3 oz 519 g RF0650A 19 5 oz 550 g RF0650W 15 5 oz 439 g RF1200A 24 75 oz 700 g RF1200W 16 25 oz 460 g RF1200C 156 oz 4 42 kg RF23...

Page 174: ...oz 210 g RNS0308 15 5 oz 440 g RNS0385A 11 25 oz 320 g RNS0608A 18 34 oz 520 g RNS0609W 16 9 oz 479 g RNS1000A 23 3 oz 660 g RNS1009W 18 0 oz 510 g RNS1078C 160 0 oz 4 54 kg NOTE All ice machines are...

Page 175: ...t Driers are covered as a warranty part The drier must be replaced any time the system is opened for repairs SUCTION CLEANUP FILTER DRIER Contaminated systems must have a suction line filter drier ins...

Page 176: ...ntial to obtain the correct diagnosis Zero out manifold gauge set before obtaining pressure readings to avoid misdiagnosis Discharge and suction pressure are highest at the beginning of the cycle Allo...

Page 177: ...er Temperature 24 hour Ice Production 70 F 50 F 21 C 10 C 182 lbs 82 kgs 90 F 70 F 32 C 21 C 151 lbs 68 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Press...

Page 178: ...rature 24 hour Ice Production 70 F 50 F 21 C 10 C 1821lbs 82 kgs 90 F 70 F 32 C 21 C 151 lbs 68 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suct...

Page 179: ...F 50 F 21 C 10 C 311 lbs 141 kgs 90 F 70 F 32 C 21 C 259 lbs 117 kgs RFS0300 70 F 50 F 21 C 10 C 384 lbs 174 kgs 90 F 70 F 32 C 21 C 286 lbs 130 kgs OPERATING PRESSURES PSIG kPa Air Temperature Enteri...

Page 180: ...ature 24 hour Ice Production 70 F 50 F 21 C 10 C 329 lbs 149 kgs 90 F 70 F 32 C 21 C 273 lbs 124 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suc...

Page 181: ...ature 24 hour Ice Production 70 F 50 F 21 C 10 C 332 lbs 151 kgs 90 F 70 F 32 C 21 C 270 lbs 122 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suc...

Page 182: ...ature 24 hour Ice Production 70 F 50 F 21 C 10 C 332 lbs 151 kgs 90 F 70 F 32 C 21 C 270 lbs 122 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suc...

Page 183: ...24 hour Ice Production 70 F 50 F 21 C 10 C 688 lbs 312 kgs 90 F 70 F 32 C 21 C 510 lbs 231 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suction P...

Page 184: ...21 C 10 C 671 lbs 305 kgs 90 F 70 F 32 C 21 C 545 lbs 248 kgs RFS0650A 70 F 50 F 21 C 10 C 747 lbs 339 kgs 90 F 70 F 32 C 21 C 540 lbs 245kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Cond...

Page 185: ...70 F 32 C 21 C 586 lbs 266 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C kPa 255 275 1827 1896 33 37 228 255 90 F...

Page 186: ...C 10 C 1186 lbs 538 kgs 90 F 70 F 32 C 21 C 864 lbs 392 kgs RFS1200A 70 F 50 F 21 C 10 C 1202 lbs 545 kgs 90 F 70 F 32 C 21 C 874 lbs 396 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Con...

Page 187: ...10 C 1339 lbs 607 kgs 90 F 70 F 32 C 21 C 1128 lbs 512 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C kPa 245 2...

Page 188: ...0 C 1092 lbs 495 kgs 90 F 70 F 32 C 21 C 958 lbs 435 kgs 120 F 70 F 49 C 21 C 603 lbs 274 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser F C Freeze Cycle Discharge Pressure Suctio...

Page 189: ...hour Ice Production 70 F 50 F 21 C 10 C 2460 lbs 1115 kgs 90 F 70 F 32 C 21 C 1819 lbs 825 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suction...

Page 190: ...F 21 C 10 C 2608 lbs 1183 kgs 90 F 70 F 32 C 21 C 2201 lbs 998 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C k...

Page 191: ...0 C 2063 lbs 936 kgs 90 F 70 F 32 C 21 C 1702 lbs 772 kgs 120 F 70 F 49 C 21 C 1073 lbs 487 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suct...

Page 192: ...ter Temperature 24 hour Ice Production 70 F 50 F 21 C 10 C 182 lbs 82 kgs 90 F 70 F 32 C 21 C 151 lbs 68 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pres...

Page 193: ...F 50 F 21 C 10 C 311 lbs 141 kgs 90 F 70 F 32 C 21 C 259 lbs 117 kgs RFS0300 70 F 50 F 21 C 10 C 384 lbs 174 kgs 90 F 70 F 32 C 21 C 286 lbs 130 kgs OPERATING PRESSURES PSIG kPa Air Temperature Enteri...

Page 194: ...21 C 10 C 671 lbs 305 kgs 90 F 70 F 32 C 21 C 545 lbs 248 kgs RFS0650A 70 F 50 F 21 C 10 C 747 lbs 339 kgs 90 F 70 F 32 C 21 C 540 lbs 245kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Con...

Page 195: ...50W 70 F 50 F 740 lbs 21 C 10 C 335 kgs RFS0650W 90 F 70 F 596 lbs 32 C 21 C 270 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suction Pressure 70...

Page 196: ...1 C 10 C 1186 lbs 538 kgs 90 F 70 F 32 C 21 C 864 lbs 392 kgs RFS1200A 70 F 50 F 21 C 10 C 1202 lbs 545 kgs 90 F 70 F 32 C 21 C 874 lbs 396 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Co...

Page 197: ...0 F 32 C 21 C 1128 lbs 512 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C kPa 255 265 1758 1827 29 31 200 214 9...

Page 198: ...10 C 1092 lbs 495 kgs 90 F 70 F 32 C 21 C 958 lbs 435 kgs 120 F 70 F 49 C 21 C 603 lbs 274 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser F C Freeze Cycle Discharge Pressure Sucti...

Page 199: ...4 hour Ice Production 70 F 50 F 21 C 10 C 2301 lbs 1044 kgs 90 F 70 F 32 C 21 C 1665 lbs 755 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Suction...

Page 200: ...F 21 C 10 C 2608 lbs 1183 kgs 90 F 70 F 32 C 21 C 2201 lbs 998 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C k...

Page 201: ...0 C 2063 lbs 936 kgs 90 F 70 F 32 C 21 C 1702 lbs 772 kgs 120 F 70 F 49 C 21 C 1073 lbs 487 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suct...

Page 202: ...5 lbs 175 kgs 90 F 70 F 32 C 21 C 294 lbs 133 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 60 F PSIG 16 C kPa 170 200 1172 1...

Page 203: ...859 390 80 F 27 C 962 437 916 416 871 395 826 375 782 355 90 F 32 C 828 376 816 371 794 361 755 343 698 317 100 F 38 C 786 357 728 331 686 312 654 297 610 277 OPERATING PRESSURES PSIG kPa Air Temperat...

Page 204: ...842 382 80 F 27 C 975 443 912 414 870 395 839 381 814 370 90 F 32 C 885 402 826 375 786 357 759 345 745 338 100 F 38 C 762 346 723 328 683 310 642 392 603 274 OPERATING PRESSURES PSIG kPa Air Temperat...

Page 205: ...kgs 90 F 70 F 32 C 21 C 1318 lbs 598 kgs 110 F 70 F 43 C 21 C 1019 lbs 462 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 50...

Page 206: ...6 kgs 90 F 70 F 32 C 21 C 1318 lbs 598 kgs 110 F 70 F 43 C 21 C 1100 lbs 499 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 50...

Page 207: ...10 C 880 lbs 399kgs 90 F 70 F 32 C 21 C 713 lbs 323kgs 120 F 70 F 49 C 21 C 490 lbs 222kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction...

Page 208: ...10 C 1100 lbs 499kgs 90 F 70 F 32 C 21 C 962 lbs 436kgs 120 F 70 F 49 C 21 C 761 lbs 345 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction...

Page 209: ...ater Temperature 24 hour Ice Production 70 F 50 F 21 C 10 C 155 lbs 70 kgs 90 F 70 F 32 C 21 C 105 lbs 48 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pre...

Page 210: ...r Ice Production 70 F 50 F 21 C 10 C 315 lbs 143 kgs 90 F 70 F 32 C 21 C 251 lbs 114 kgs Indicates Preliminary Data OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Dischar...

Page 211: ...rature 24 hour Ice Production 70 F 50 F 21 C 10 C 270 lbs 122 kgs 90 F 70 F 32 C 21 C 223 lbs 101 kgs OPERATING PRESSURES PSIG kPa Air Temperature Entering Condenser Freeze Cycle Discharge Pressure Su...

Page 212: ...e 24 Hour Ice Production 70 F 50 F 21 C 10 C 591 lbs 268 kgs 90 F 70 F 32 C 21 C 451 lbs 204 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suc...

Page 213: ...C 21 C 508 lbs 230 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C kPa 235 245 1670 1689 27 29 186 199 90 F PSIG...

Page 214: ...Hour Ice Production 70 F 50 F 21 C 10 C 1078 lbs 489 kgs 90 F 70 F 32 C 21 C 825 lbs 374 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suctio...

Page 215: ...C 21 C 960 lbs 435 kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suction Pressure 70 F PSIG 21 C kPa 235 245 1670 1689 29 31 200 214 90 F PSI...

Page 216: ...10 C 1131 lbs 513 kgs 90 F 70 F 32 C 21 C 900 lbs 408 kgs 120 F 70 F 49 C 21 C 490 lbs 222kgs OPERATING PRESSURES PSIG kPa Air Temperature Around Ice Machine F C Freeze Cycle Discharge Pressure Suctio...

Page 217: ...Ice Production 50 F 10 C 1092 lbs 495 kgs 70 F 21 C 958 lbs 435 kgs SUCTION PRESSURE PSIG kPa Freeze Cycle Liquid Line Pressure Acceptable Suction Pressure Range 185 200 psi 1276 1379 kPa 23 28 psi 15...

Page 218: ...oduction 50 F 10 C 1092 lbs 495 kgs 70 F 21 C 958 lbs 435 kgs SUCTION PRESSURE PSIG kPa Freeze Cycle Liquid Line Pressure Acceptable Suction Pressure Range 185 200 psi 1276 1379 kPa 23 28 psi 159 193...

Page 219: ...duction 50 F 10 C 2063 lbs 936 kgs 70 F 21 C 1702 lbs 772 kgs SUCTION PRESSURE PSIG kPa Freeze Cycle Liquid Line Pressure Acceptable Suction Pressure Range 175 200 psi 1207 1379 kPa 26 31 psi 176 214...

Page 220: ...oduction 50 F 10 C 2063 lbs 936 kgs 70 F 21 C 1702 lbs 772 kgs SUCTION PRESSURE PSIG kPa Freeze Cycle Liquid Line Pressure Acceptable Suction Pressure Range 175 200 psi 1207 1379 kPa 26 31 psi 176 214...

Page 221: ...Part Number 000007661 Rev02 02 20 221 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 222: ...rical wiring diagrams Be sure you are referring to the correct diagram for the ice machine you are servicing nWarning Always disconnect power before working on electrical circuitry Flake Models RF0244...

Page 223: ...otor 6 Water Inlet valve 7 Evaporator low temperature safety or Low pressure control 10 Low water level safety 11 Bin thermostat 12 High temperature limit snap disc 13 Fan cycle control 17 Water level...

Page 224: ...224 Part Number 000007661 Rev02 02 20 RF0300 AIR COOLED Refer to Nameplate for Voltage Rating...

Page 225: ...perature safety Low pressure control 10 Low water level safety 11 Bin thermostat 13 Fan cycle control 17 Water level switch 18 Ice chute safety switch 21 Compressor relay 24 On Off switch 25 Compresso...

Page 226: ...0 RFS0300 AIR COOLED Refer to Nameplate for Voltage Rating GY BU BU BU WH RD BU U B U B M BK M GY M PK P RD RD BN BN BN K GY BN 18 15 A1 A2 K BU BK BK BN BN BK RS RD P P RD T1 T2 L1 L2 A1 A2 6 N 24 17...

Page 227: ...er level switch 11 Bin thermostat 13 Fan cycle control 17 Water level switch 18 Chute safety switch 19 High Pressure Safety Switch 24 On Off switch 25 Compressor delay timer 27 Low Pressure Safety Swi...

Page 228: ...228 Part Number 000007661 Rev02 02 20 RF0650 RF1200 AIR COOLED Refer to Nameplate for Voltage Rating...

Page 229: ...level safety 11 Bin thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Ice chute safety switch 19 High pressure cut out 21 Compressor relay 24 On Off switch 25 Compressor time dela...

Page 230: ...v02 02 20 RFS1200A AIR COOLED Refer to Nameplate for Voltage Rating 15 5 1 6 2 PH GY U B U B U B BU M BU BU M BU BK BN BU RD K1 P BN BN WH BK RD BK BK BK BK BU BN M P RD P RD BU RD 4 N 1 30 6 24 L 2 1...

Page 231: ...level switch 11 Bin thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Chute safety switch 19 High pressure safety switch 24 On Off switch 27 Low pressure safety switch 30 Rotation...

Page 232: ...232 Part Number 000007661 Rev02 02 20 RF1200 WATER COOLED Refer to Nameplate for Voltage Rating...

Page 233: ...ter level safety 11 Bin thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Ice chute safety switch 19 High pressure cut out 21 Compressor relay 24 On Off switch 25 Compressor time d...

Page 234: ...007661 Rev02 02 20 RFS1200W WATER COOLED Refer to Nameplate for Voltage Rating 15 5 1 6 2 GY BU BU BU BU BU M BU BU BK BN RD BN BN K1 M BK BU BN WH BK BK RD BK RD P P RD BU RD N 1 30 6 2 24 35 10 L K1...

Page 235: ...w water level switch 11 Bin thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Chute safety switch 19 High pressure safety switch 24 On Off switch 27 Low pressure safety switch 30 R...

Page 236: ...RFS1200C 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 237: ...inlet valve 10 Low water level safety 11 Bin thermostat 17 Water level switch 18 Ice chute safety switch 21 Compressor Relay 24 On Off switch 30 Rotation sensor 35 Compressor time delay by pass 38 Sol...

Page 238: ...02 20 RF2300 RFS2300 AIR COOLED WATER 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 r...

Page 239: ...ostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Ice chute safety switch 19 High pressure cut out 24 On Off switch 25 Compressor time delay 27 Low pressure cut out 29 Compressor time d...

Page 240: ...RFS2378C 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 241: ...or 6 Water inlet valve 10 Low water level safety 11 Bin thermostat 17 Water level switch 18 Ice chute safety switch 21 Compressor Relay 24 On Off switch 30 Rotation sensor 35 Compressor time delay by...

Page 242: ...242 Part Number 000007661 Rev02 02 20 Condensing Units RCU CONDENSING UNIT 1PH Refer to Nameplate for Voltage Rating 1 2 3 4 5 6 6 7 8 9 10 11 12 13...

Page 243: ...4 Low Pressure Cutout Control 5 Contactor Coil 6 Contactor Contacts 7 Condenser Fan Motor 8 Condenser Fan Motor Run Capacitor 9 Compressor 10 Compressor Overload 11 Compressor Run Capacitor 12 Compres...

Page 244: ...244 Part Number 000007661 Rev02 02 20 RCU CONDENSING UNIT 3PH Refer to Nameplate for Voltage Rating 1 2 3 4 5 6 6 7 8 9...

Page 245: ...GRAM LEGEND RCU CONDENSING UNIT 1 High Pressure Cutout Control 2 Thermostat Receiver Heater 3 Receiver Heater 4 Low Pressure Cutout Control 5 Contactor Coil 6 Contactor Contacts 7 Condenser Fan Motor...

Page 246: ...v02 02 20 Rack Models RF1279R RFS1279R HEAD SECTION 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 3 4 energizes rem...

Page 247: ...evel safety 11 Bin thermostat 17 Water level switch 18 Ice chute safety switch 21 Compressor Relay 24 On Off switch 30 Rotation sensor 35 Compressor time delay by pass 45 Suction Line Solenoid Valve 4...

Page 248: ...RF2379R RFS2379R HEAD SECTION Refer to nameplate for voltage 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 3 4 ene...

Page 249: ...evel safety 11 Bin thermostat 17 Water level switch 18 Ice chute safety switch 21 Compressor Relay 24 On Off switch 30 Rotation sensor 35 Compressor time delay by pass 45 Suction Line Solenoid Valve 4...

Page 250: ...250 Part Number 000007661 Rev02 02 20 Nugget Models RNS0244 RNS0385 AIR COOLED Refer to Nameplate for Voltage Rating...

Page 251: ...t valve 7 Evaporator low temperature safety or Low pressure control 10 Low water level safety 11 Bin thermostat 12 High temperature limit snap disc 13 Fan cycle control 17 Water level switch 21 Compre...

Page 252: ...252 Part Number 000007661 Rev02 02 20 RNS0308 AIR COOLED Refer to Nameplate for Voltage Rating...

Page 253: ...tor low temperature safety 10 Low water level safety 11 Bin thermostat 13 Fan cycle control 17 Water level switch 18 Ice chute safety switch 21 Compressor relay 24 On Off switch 25 Compressor time del...

Page 254: ...OMPRESSOR SWITCH OPEN ON CLOSED OFF START RUN YELLOW BLACK GEARMOTOR WHITE WHITE HIGH PRESSURE SAFETY SWITCH BLACK BLACK BLACK BLACK BLACK BLACK BLACK FAN WHITE L2 NUETRAL L1 CONTROL BOARD COMPRESSOR...

Page 255: ...MPRESSOR R POTENTIAL START RELAY RUN CAP CAPACITOR START C S 2 1 5 T O L L1 L2 COMP FAN DRV RED WATER SENSOR G GREEN YELLOW GRN IN ELEC BOX BROWN BLUE WHITE WHITE BLACK BLACK ORANGE RED BLACK BLACK BL...

Page 256: ...661 Rev02 02 20 RNS0600A AIR COOLED Refer to Nameplate for Voltage Rating 15 1 5 2 6 BU BU BU BK BU BU BU GY BN BN K1 BU PH BK BN WH BK BU RD BK RD BN BU RD BK RD P P M M M BK P 27 11 N 1 4 30 L 24 35...

Page 257: ...valve 10 Low water level safety 11 Bin thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Ice chute safety switch 19 High pressure cut out 24 On Off switch 27 Low pressure cut out 3...

Page 258: ...r 000007661 Rev02 02 20 RNS0600W WATER COOLED Refer to Nameplate for Voltage Rating 15 1 5 2 6 BK BU BN BU BU K1 BU BU BU GY BN BN WH BK RD BK BK BU BN RD P RD P M M BK BU RD 1 N 30 L 2 K1 10 19 11 18...

Page 259: ...et valve 10 Low water level safety 11 Bin thermostat 15 Contactor 17 Water level switch 18 Ice chute safety switch 19 High pressure cut out 24 On Off switch 27 Low pressure cut out 30 Rotation sensor...

Page 260: ...260 Part Number 000007661 Rev02 02 20 RNS1000 AIR COOLED Refer to Nameplate for Voltage Rating...

Page 261: ...vel safety 11 Bin thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Ice chute safety switch 19 High pressure cut out 21 Compressor relay 24 On Off switch 25 Compressor time delay 2...

Page 262: ...RNS1009 WATER COOLED Refer to Nameplate for Voltage Rating 15 5 1 6 2 RS G L B L B L B BL M BL BL M BL N M BL R G BL BL BL BL BL M BL BL N M R M M K1 M N BL M B N N R N R P P R BL R 4 N 1 30 6 N 1 30...

Page 263: ...Level Switch 11 Bin Thermostat 13 Fan cycle control 15 Contactor 17 Water level switch 18 Chute safety switch 19 High pressure safety switch 24 On Off switch 27 Low pressure safety switch 30 Rotation...

Page 264: ...k located on top of junction box Jumper must be removed when remote panel is used 1 2 connect to line voltage junction box on rear of ice machine Red wire to L1 Black wire to L2 3 4 energizes remote r...

Page 265: ...valve 10 Low water level switch 11 Bin thermostat 17 Water level switch 18 Chute safety switch 21 Relay 24 On Off switch 30 Rotation sensor 35 Compressor time delay by pass Service Staff only 38 Solen...

Page 266: ...J33 J32 J31 1 230Vac SIGNAL RETURN 2 J3 GRAY GRAY PAIR HI PRESS HIGH PRESSURE OPENS EXCESS P 2 PE OPEN 425 PSI CLOSE 295 PSI K1 C NO L1 J7 J4 J5 MOTOR FAN J17 J18 J2 BRN BLU 1 2 3 J50 6 Amp Max 1 2hp...

Page 267: ...R R TIME DELAY Y DRAIN CLOG R LO PRESS R HI PRESS R HI AMPS R SERVICE R CLEANING Y REFRIG ON G AUGER ON G LOW BIN G POWER G PURGE Y J21 CONTROL PC BOARD J23 J22 J24 GRAY GRAY PAIR RED GRAY PAIR J51 4...

Page 268: ...eration Tubing Schematics Flake Models RF0244 RFS0244 RF0266 RF0300 RF0385 RF0388 RF0399 RF0644 RF0650 1 2 3 4 5 6 7 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser 3 Liquid Line Drier 4 Capillary tube...

Page 269: ...20 269 RF1200 RFS1200 AIR COOLED 1 2 3 4 5 6 7 8 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser 3 Liquid Line Drier 4 Liquid Line Solenoid Valve 5 Suction Accumulator 6 Thermostatic Expansion Valve 7...

Page 270: ...270 Part Number 000007661 Rev02 02 20 RF1200 RFS1200 WATER COOLED 1 2 3 4 5 6 7 8...

Page 271: ...r 000007661 Rev02 02 20 271 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser 3 Liquid Line Drier 4 Liquid Line Solenoid Valve 5 Suction Accumulator 6 Thermostatic Expansion Valve 7 Liquid Accumulator 8...

Page 272: ...272 Part Number 000007661 Rev02 02 20 RF2300 RFS2300 AIR COOLED 1 2 3 4 5 6 7 8 8...

Page 273: ...r 000007661 Rev02 02 20 273 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser 3 Liquid Line Drier 4 Liquid Line Solenoid Valve 5 Suction Accumulator 6 Thermostatic Expansion Valve 7 Liquid Accumulator 8...

Page 274: ...274 Part Number 000007661 Rev02 02 20 RF2300 RFS2300 WATER COOLED 1 2 3 4 5 6 7 8 8...

Page 275: ...r 000007661 Rev02 02 20 275 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser 3 Liquid Line Drier 4 Liquid Line Solenoid Valve 5 Suction Accumulator 6 Thermostatic Expansion Valve 7 Liquid Accumulator 8...

Page 276: ...276 Part Number 000007661 Rev02 02 20 RF1200C RFS1200C QUIETQUBE HEAD SECTION RCU1075 CONDENSING UNIT 1 2 3 4 5 6 7 8 9 10 11 12 13 14...

Page 277: ...ontrol Valve 4 Condenser air or water cooled 5 Receiver 6 Condensing unit Liquid Line Drier 7 Liquid Line Shut off Valve 8 Ice Machine Liquid Line Drier 9 Liquid Line Solenoid Valve 10 Thermostatic Ex...

Page 278: ...278 Part Number 000007661 Rev02 02 20 RF2300C RFS2300 QUIETQUBE HEAD SECTION RCU2375 CONDENSING UNIT 1 2 3 4 5 6 7 9 10 11 11 12 13 14 15...

Page 279: ...e 4 Condenser air or water cooled 5 Receiver 6 Condensing unit Liquid Line Drier 7 Liquid Line Shut off Valve 8 Ice Machine Liquid Line Drier 9 Liquid Line Solenoid Valve 10 Thermostatic Expansion Val...

Page 280: ...661 Rev02 02 20 Nugget Models RN0244 RNS0244 RN0385 RNS0385 Air Water cooled 1 2 3 4 5 6 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser air or water cooled 3 Liquid Line Drier 4 Heat Exchanger 5 Capil...

Page 281: ...art Number 000007661 Rev02 02 20 281 RNS0308 1 2 3 4 5 6 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser air or water cooled 3 Liquid Line Drier 4 Heat Exchanger 5 Automatic Expansion Valve 6 Evaporato...

Page 282: ...282 Part Number 000007661 Rev02 02 20 RN0400 RN1000 RN1400 AIR WATER COOLED 1 2 3 4 5 6...

Page 283: ...Part Number 000007661 Rev02 02 20 283 TUBING DIAGRAM LEGEND 1 Compressor 2 Condenser air or water cooled 3 Liquid Line Drier 4 Heat Exchanger 5 Thermostatic Expansion Valve 6 Evaporator...

Page 284: ...284 Part Number 000007661 Rev02 02 20 RN1000C RN1200C QUIETQUBE HEAD SECTION RCU1075 RCU1275 CONDENSING UNIT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...

Page 285: ...4 Condenser air or water cooled 5 Receiver 6 Condensing unit Liquid Line Drier 7 Liquid Line Shut off Valve 8 Ice Machine Liquid Line Drier 9 Liquid Line Solenoid Valve 10 Thermostatic Expansion Valv...

Page 286: ...286 Part Number 000007661 Rev02 02 20...

Page 287: ...Part Number 000007661 Rev02 02 20 287 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 288: ...MANITOWOC ICE 2110 SOUTH 26TH STREET MANITOWOC WI 54220 844 724 2273 WWW MANITOWOCICE COM 2017 Welbilt except where explicitly stated otherwise All rights reserved Part Number 000007661 Rev02 02 20...

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Summary of Contents for Manitowoc RCU1075

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Welbilt Manitowoc RCU1075, Technician'S Handbook, Page: 171 / 288

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Summary of Contents for Manitowoc RCU1075

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