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Scotsman FME2400RH Service Manual

Scotsman fme2400rh 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT DESCRIPTION: Evaporator . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATION: Refrigeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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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 FME2400RH (remote high side) 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
R-404A system.
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Summary of Contents for Scotsman FME2400RH

  • Page 1: Table Of Contents

    Note the Warning symbol where it appears. It marks a potential hazard. The FME2400RH (remote high side) 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 R-404A system.

  • Page 2: For The Installer: Specifications

    FOR THE INSTALLER: Specifications BACK VIEW 20.84" 9.43" 5.25" The FME2400RH 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 FME2400RH is designed for indoor installations only.

  • Page 3: For The Installer

    B90. Remove the paper tape from the bin extension top edge, and using a mechanical lift, install the FME2400RH onto the top of the storage bin assembly. Fasten the ice machine to the bin using (4) 5/15-18 2.5" cap screws.

  • Page 4: For The Electrician

    FME2400RH 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

    Use only rigid tubing for drains; insulation of the bin drain is recommended. FIELD SUPPLIED WATER FILTER January 1995 Page 5 FME2400RH 3/8" MALE FLARE 3/4" FPT VENT THIS DRAIN...

  • 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

    30 psig, + or - 2 psig. Gearmotor amp draw should not exceed the nameplate rating. 9. Check the system very carefully for any refrigerant leaks, repair as needed. January 1995 Page 7 FME2400RH...

  • Page 8: Component Identification

    FME2400RH 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

    FME2400RH 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

    FME2400RH 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” seal, the top half rotating with the auger, the bottom half stationary, the sealing action being where the two seal “faces”...

  • Page 11: Electrical Sequence

    “shut down” When the water refills the reservoir, the machine will start up again. Separate from the circuit board: The master switch is the manual control for each system, but it is not a service disconnect. January 1995 Page 11 FME2400RH...

  • Page 12: Operation

    FME2400RH 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

    LIQUID LINE VALVE THERMO VALVE EVAPORATORS BALL VALVES EPR VALVE January 1995 Page 13 FME2400RH the evaporator, where it boils off (evaporates) and absorbs heat. It then moves through the ball valve and into the evaporator pressure regulator valve, or EPR.

  • Page 14: Maintenance And Cleaning

    FME2400RH 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

    FME2400RH 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

    4. If the liquid line valve relay on the circuit board has power on the NO contact, but not on the COM contact, replace the circuit board. January 1995 Page 17 FME2400RH...

  • Page 18: Removal And Replacement

    FME2400RH 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

    FME2400RH 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

    E) After the case is together, and the locating pins are secure in both ends, replace all cap screws. 4. Bench test the gearmotor, check for oil leaks, noise, and amp draw. SEAL MOTOR GEARCASE GASKET January 1995 Page 23 FME2400RH BEARING...

  • 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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