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Scotsman FM2400RL Service Manual

Scotsman fm2400rl ice machine: user guide
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TO THE OWNER OR USER:
The service manual you are reading is intended to
provide you, and the maintenance or service
technician, with the information needed to install,
start up, clean, maintain and service this ice
system.
FOR THE ELECTRICIAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOR THE INSTALLER: Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT DESCRIPTION: Evaporator . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATION: Refrigeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVAL AND REPLACEMENT: Bearing And Breaker . . . . . . . . . . . . . . . . . .
REMOVAL AND REPLACEMENT: Evaporator . . . . . . . . . . . . . . . . . . . . . . .
REMOVAL AND REPLACEMENT: Gearmotor . . . . . . . . . . . . . . . . . . . . . . .
Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.
This manual was printed on recycled paper, keep
it for future reference.
Note the Warning symbol where it appears. It
marks a potential hazard.

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The is the freezer portion of a commercial ice
machine. It is designed to be connected to the
condensing section of a refrigeration system,
specifically a supermarket system.
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March 1997
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Summary of Contents for Scotsman FM2400RL

  • Page 1: Table Of Contents

    TO THE OWNER OR USER: The service manual you are reading is intended to provide you, and the maintenance or service technician, with the information needed to install, start up, clean, maintain and service this ice system. FOR THE INSTALLER: Specifications FOR THE INSTALLER .

  • Page 2: For The Installer: Specifications

    FOR THE INSTALLER: Specifications BACK VIEW 20.84" 9.43" 5.25" The machine is designed to fit the Scotsman storage bins BH800 or B90. Leg kit KLP4 is recommended when using both the B90 bin and an extension. Installation Limitations: The machine is designed for indoor installations only.

  • Page 3: For The Installer

    F. liquid line temperature (assume a 0 F. evaporator temperature). Storage Bin: Scotsman’s B90 will be the presumed bin of choice. If using the bin extension BX87, install heavy duty leg kit KLP4 and place the bin into position. Remove the paper tape from the bin edge gasket, and install the bin extension onto the B90.

  • Page 4: For The Electrician

    Double System RL FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES Electrical Connections: DETAIL OF Locate the nameplate for the current JUNCTION BOX requirements, and then determine the wire size and type per the National Electric Code. The machine requires a solid chassis to earth ground wire.

  • Page 5: For The Plumber

    FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Supply: The recommended water supply line is 3/8" O.D. copper tubing, with a minimum operation pressure of 20 PSIG, and a maximum of 80 PSIG. Connect to cold water using the male flare connection at the back of the machine.

  • Page 6: For The Installer: Final Check List

    9. Has the bin and cabinet been wiped clean or sanitized? 10. Has the warranty registration card been properly filled out and mailed to Scotsman? 11. Has the owner been given the service manual and been instructed on how to maintain the ice maker? 13.

  • Page 7: Initial Start Up

    INITIAL START UP 1. Remove the top and front panels. 2. Open the water valve, and observe that the two float reservoirs fill up with water and shut off. 3. Switch on the electrical power. 4. Open the hand valves (in the liquid lines). 5.

  • Page 8: Component Identification

    Double System RL COMPONENT IDENTIFICATION Liquid line valve(s) These valves operate to turn the ice making process on and off. When the ice level drops in the ice chute, the ice level sensor will cause the circuit board to close the liquid line relay, which energizes the liquid line valve for that side of the system.

  • Page 9: Component Description: Control Box

    COMPONENT DESCRIPTION: Control Box Circuit Board: Controlling the ice machine through sensors and relays. The sensors are: ice level, and water level. The relays are for the gear motor (with a built in time delay to clear the evaporator of ice when the unit turns off) and for the liquid line valve.

  • Page 10: Component Description: Evaporator

    Double System RL COMPONENT DESCRIPTION: Evaporator Evaporator: A refrigerated vertical tube filled water and containing a water seal and auger. Auger: A solid stainless steel double spiral auger, it pushes the ice crystals up to the top of the evaporator. Water Seal: A two part "face"...

  • Page 11: Electrical Sequence

    ELECTRICAL SEQUENCE Refer the wiring diagram as needed. Each system is separate If the machine is switched off at the master switch, but is otherwise ready to go, switching the master switch to on does the following: The bin empty light on the circuit board goes on There is a 15 second delay If there is enough water in the reservoir, the circuit board will allow the machine to start up.

  • Page 12: Operation

    Double System RL OPERATION Water Water enters the machine through the 3/8" male flare at the rear of the cabinet, goes to the water reservoir which it enters through the float valve. RESERVOIR WATER INLET EVAPORATOR WATER INLET DRIP PAN DRAIN The water then goes out the bottom of the reservoir tank to the bottom of the evaporator.

  • Page 13: Operation: Refrigeration

    OPERATION: Refrigeration The remote high side supplies high pressure liquid refrigerant to the liquid line connection on the ice machine. After the sight glass, there are two separate liquid lines, each leading to a liquid line valve. When the individual ice level...

  • Page 14: Maintenance And Cleaning

    Double System RL MAINTENANCE AND CLEANING A Scotsman Ice System represents a sizable investment of time and money in any company’s business. In order to receive the best return for that investment, it MUST receive periodic maintenance. It is the USER’S RESPONSIBILITY to see that the unit is properly maintained. It is always preferable, and less costly in the long run, to avoid possible down time by keeping it clean;...

  • Page 15: Maintenance

    2. The ice machine senses water level by a probe located in the water reservoir. At least twice a year, the probe should be removed from the reservoir, and the tip wiped clean of mineral build-up.

  • Page 16: Cleaning

    Double System RL CLEANING In some installations the water supply to the ice maker will be so concentrated with dissolved minerals, (such as calcium carbonate) that as ice is made, the evaporator and auger become coated with the minerals, requiring a more frequent cleaning than twice per year.

  • Page 17: Service Diagnosis: Condition - No Ice Being Produced

    SERVICE DIAGNOSIS: Condition - No Ice Being Produced STATUS: NOTHING OPERATES A. Check: Voltage to the unit, restore it if there is none. Compare to the nameplate. B. Check: The master switch, switch ON if off. C. Check the water level in the reservoir. The machine will not run if there is not enough water in the reservoir.

  • Page 18: Removal And Replacement

    Double System RL REMOVAL AND REPLACEMENT WATER RESERVOIR 1. Shut off the water supply to the ice maker. 2. Remove front panel and reservoir cover. 3. To remove float only, disconnect water inlet tube, push in the tab behind the reservoir and pull valve assembly out of the reservoir tank.

  • Page 19: Removal And Replacement: Bearing And Breaker

    7. Reverse to reassemble: specific tools and materials are required to install properly. a. Add food grade grease such as Scotsman part number 19-0569-01 to the seal area before installing on the auger. b. Check the seal to shaft areas for cuts, or rough spots: none are permitted.

  • Page 20: Removal And Replacement

    Scrub the auger with ice machine cleaner and hot water. Ice machine cleaner is an acid. Handle it with extreme care, keep out of the reach of children. 2. The water seal area. Because the auger has been removed, the water seal will have to be replaced.

  • Page 21: Removal And Replacement

    4. Place a small bead of food grade silastic sealant (such as 732 RTV or Scotsman part number 19-0529-01) on the area of the auger where the water seal is to be mounted.

  • Page 22: Removal And Replacement: Evaporator

    Double System RL REMOVAL AND REPLACEMENT: Evaporator To Replace the Evaporator: (Assuming all the steps for removal of the thrust bearing, breaker, auger, and water seal have been performed.) 1. Shut the hand valves in the liquid and suction lines to the evaporator being serviced; then discharge the refrigerant.

  • Page 23: Removal And Replacement: Gearmotor

    REMOVAL AND REPLACEMENT: Gearmotor To Remove and Repair the Gearmotor Assembly: (Assuming that the procedures through removal of the water seal have been performed.) 1. Remove the electrical wires from the gear drive motor. 2. Unscrew the 4 cap screws holding the gearmotor to the gearmotor plate.

  • Page 24: Circuit Board Testing

    3. Unplug "water sen" connector from the circuit board. 4. Plug "water sen" connector from Scotsman tester into the circuit board. Bin Control: a. Move the “bin full” switch on the tester to Full.

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