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INTRODUCTION
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.
This product contains 2 separate ice making
systems in one cabinet.
TABLE OF CONTENTS
Installation
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Storage Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Reservoir and Bin Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Bearing and Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Fan Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Electronic Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
The FM2400 is a modular ice system that fits
a variety of Scotsman ice storage bins.
It features: front service for the freezer,
gearmotor, control box, water reservoir, and
bin control; an electronic circuit for monitoring
ice and water level; a thermostatic expansion
valve; and R-502 as the refrigerant.
June, 1989
Page 1
FM2400
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Table of Contents
Related Manuals for Scotsman FM2400
Summary of Contents for Scotsman FM2400
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Page 1: Table Of Contents
Electronic Tester ........31 Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper. The FM2400 is a modular ice system that fits a variety of Scotsman ice storage bins. -
Page 2: For The Installer
FM2400 FOR THE INSTALLER The FM2400 is designed to fit the following Scotsman storage bins: B590 and extensions (with bin top KBT18) BH800 no bin top required. BH1000 using bin top KBT14. When installing a new system, check to be sure... - Page 3 UL, NSF, and CSA. Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, 80 PSI including the use of any part and/or other +10% components not specifically approved by Scotsman.
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Page 4: Storage Bin
FM2400 FOR THE INSTALLER Typical Storage Bin with Extension and Bin Top Location: After uncrating and inspection, the unit is ready for installation. It is important that the machine be installed in a location where it has enough space around it to be accessible for service, and minimum of 6"... - Page 5 FM2400 FOR THE INSTALLER: Location ALLOW ROOM FOR AIR DO NOT STACK ANYTHING IN CIRCULATION FRONT OF THE MACHINE(S) AND SERVICE ACCESS June, 1989 Page 5...
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Page 6: For The Plumber
FM2400 FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Air Cooled Models: The recommended water supply is clean, cold water. Use 3/8" O.D. copper tubing, and connect to the single 3/8" male flare at the back of the cabinet. This connection supplys water to both ice making systems. -
Page 7: For The Electrician
Voltage variation must remain within design limitations, even under starting conditions. All external wiring must conform to national, state, and local electrical codes. The use of a licensed electrician is required to perform the electrical installation. June, 1989 Page 7 FM2400 POWER SUPPLY... -
Page 8: Final Check List
FM2400 FOR THE INSTALLER 1. Is the ice system installed indoors in a location where the air and water temperatures are controlled, and where they do not exceed the design limitations? 2. Is there an electrical service disconnect within sight of the installed machine? Has the... -
Page 9: Start Up
9. Fill out the manufacturers registration card, and mail it to the Scotsman Factory. 10. Fill out the field quality audit form, and mail it to the Scotsman factory. June, 1989... -
Page 10: Component Description
Compressor: The refrigerant vapor pump. Reservoir: Float operated, it maintains the water level in the evaporator at a constant level, it also contains the water level sensor. There are two of each of the above components in the FM2400. WATER COOLED COMPRESSOR Water Level Sensor: Senses if there is water in the reservoir to make ice out of. - Page 11 TRANSFORMER CIRCUIT BOARD Low Pressure Cut Out Switch: A manual reset control that shuts off the ice machine when the low side pressure drops below a preset point, 0-4 psig. Potential Relay: The compressor start relay. On/Off Switch: Manual control for the machine.
- Page 12 FM2400 COMPONENT DESCRIPTION Evaporator: A refrigerated vertical tube filled with 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...
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Page 13: Electrical Sequence
After it recloses the reset switch on the circuit board must be manually reset. Each master switch is the manual control for each system, but it is not a service disconnect. June, 1989 Page 13 FM2400... -
Page 14: Operation
FM2400 OPERATION: Water WATER INLET DRAIN CHUTE Water enters the machine through the 3/8" male flare at the rear of the cabinet, splits into two separate lines, flows to a strainer at each reservoir and then to each water reservoir which it enters through the float valve. - Page 15 Refrigeration Schematic DISCHARGE LINE THERMOSTATIC EXPANSION VALVE COMPRESSOR June, 1989 Page 15 FM2400 SUCTION LINE EVAPORATOR GEAR MOTOR...
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Page 16: Maintenance And Cleaning
FM2400 MAINTENANCE AND CLEANING The FM2400 is made up of two separate ice makers; to properly clean and maintain the FM2400, these steps must be followed for both systems. ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// A Scotsman Ice System represents a sizable investment of time and money in any company’s business. - Page 17 MAINTENANCE AND CLEANING The FM2400 is made up of two separate ice makers; to properly clean and maintain the FM2400, these steps must be followed for both systems. ///////////////////////////WARNING///////////////////////////// Disconnect electrical power before beginning. ////////////////////////////////////////////////////////////////////////// 1. The bin control uses devices that sense light, therefore they must be kept clean enough so that they can “see”.
- Page 18 FM2400 MAINTENANCE: Air Cooled 5. Clean each air cooled condenser. Use a vacuum cleaner or coil cleaner if needed. Do NOT use a wire brush. ////////////////////////////WARNING/////////////////////////////// Disconnect electrical power. ///////////////////////////////////////////////////////////////////////////// A. Remove top panel. PANEL B. Remove two screws, and unplug the fan motors.
- Page 19 Clean the auger and evaporator as required. DO NOT HONE THE EVAPORATOR. 8. Replace the water seal. 9. Reverse to reassemble. June, 1989 Page 19 FM2400 ALLEN SCREWS BREAKER & BEARING & AUGER ASSEMBLY...
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Page 20: Service Diagnosis
FM2400 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 3 reset switches, (circuit board, high and low pressure): depress and release each switch. - Page 21 If the bin empty light is still OFF, check the circuit board. 1. Unplug “opto trans” and “LED” connectors from the circuit board. 2. Plug “opto trans” and “LED” connectors from the Scotsman Electronic Control Testor Model NM1 into the circiut board.
- Page 22 FM2400 SERVICE DIAGNOSIS: Condition - No Ice Produced STATUS: GEARMOTOR OPERATES, COMPRESSOR DOES NOT A. Check the compressor relay. The relay is on the circuit board, if it does not supply power to the contactor coil, the compressor will not run.
- Page 23 FM2400 SERVICE DIAGNOSIS: Condition - Low Ice Production STATUS: EVERYTHING IS OPERATING A. Check the air cooled condenser for dirt. Clean as required. Check the head pressure on water cooled. Adjust as required. If the head pressure is very high: 1.
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Page 24: Removal And Replacement: Water Reservoir & Bin Controls
FM2400 REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls WATER RESERVOIR 1. Shut off the water supply to the icemaker. 2. Remove front panel and reservoir cover. 3. To remove float only, pry the mounting flanges apart enough to lift one float pivot pin out of the flange hole, and pull float up and out of the reservoir. -
Page 25: 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 26: Auger
Scrub the auger with ice machine cleaner and hot water. ///////////////////////////WARNING////////////////////////////// Ice machine cleaner is an acid. Handle it with extreme care, keep out of the reach of children. ////////////////////////////////////////////////////////////////////////// 2. -
Page 27: Water Seal
REPLACING THE WATER SEAL 4. Place a small bead of food grade silastic WATER SEAL sealant (such as 732 RTV or Scotsman part number 19-0529-01) on the area of the auger RETAINING where the water seal is to be mounted. -
Page 28: Evaporator
FM2400 REMOVAL AND REPLACEMENT: Evaporator ///////////////////////////////////////////////////////////////////////////WARNING////////////////////////////// ////////////////////////////////// Disconnect electrical power before begining removal procedures. ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// To Replace the Evaporator: (Assuming all the steps for removal of the thrust bearing, breaker, auger, and water seal have been performed.) 1. Discharge the refrigerant from the ice maker. -
Page 29: Gearmotor
COVER & OUTPUT GEAR ASSEMBLY GEAR CASE Note: There are two gearmotors in each FM2400 WATER SHED 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. -
Page 30: Fan Motor Assembly
FM2400 REMOVAL AND REPLACEMENT Note: The gearcase cover, output gear, bearings and output shaft are a pressed together assembly. Replace as a unit. C) Inspect the oil, gears, and bearings. If the oil level and condition is acceptable, quickly check the gears and bearings. They are likely to be fine if the oil is. -
Page 31: Electronic Tester
If the Bin Empty light does not come ON, the circuit board should be replaced. PHOTO TRANS LIGHT GOES SWITCH TO “BIN EMPTY” June, 1989 Page 31 FM2400 LIGHT GOES LIGHT GOES OFF... - Page 32 CIRCUIT BOARD TESTING Water Level 1. Unplug “water sen” connector from control board. 2. Plug “water sen” connector from Scotsman tester into circuit board. a. Move “water” switch on tester to No Water position. The No Water light on the circuit board should go ON.