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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
informtion needed to install, start up, clean,
maintain, and service this ice system.
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance & Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Removal and Replacement
Water Reservoir & Bin Control . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Electronic Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow
paper.
TABLE OF CONTENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
. . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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It features: front service for the evaporator,
gearmotor, control box, water reservoir and
bincontrol; stackability by use of kit
KSTACK30; electronic circuitry for monitoring
ice and water level; a thermostatic expansion
valve; and R502 as the refrigerant.
February, 1989
Page 1
FM1500
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Summary of Contents for Scotsman FM1500
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Page 1: Table Of Contents
FM1500 INTRODUCTION To the owner or user: The service manual you It features: front service for the evaporator, are reading is intended to provide you, and the gearmotor, control box, water reservoir and maintenance or service technician, with the bincontrol; stackability by use of kit informtion needed to install, start up, clean, KSTACK30;... -
Page 2: Specifications
FM1500 FOR THE INSTALLER An optional stainless steel panel kit The FM1500 is designed to fit the following (SPKCMD-1) may be added to the machine. Scotsman storage bins: When installing a new system, check to be B590 and extensions (with bin top KBT18) - Page 3 Scotsman assumes no liability or responsibility Air Temperature of any kind for products manufactured by Water Temperature 40 Scotsman that have been altered in any way, Water Pressure 20 psi 80 psi including the use of any part and/or other...
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Page 4: For The Installer
FM1500 FOR THE INSTALLER Location LEVEL THE After uncrating and inspection, the ASSEMBLY 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: Stacking
FM1500 FOR THE INSTALLER: Stacking KSNM30 STACKING KIT INSTRUCTIONS B. Plug the 3 pin plug onto the ice machine circuit board socket marked "Photo Trans" (CX4). The purpose of the this kit is to connect the ice 12. Unplug the wire harness connecting the... -
Page 6: For The Plumber
FM1500 FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Drains Air Cooled Models: The recommended water Air Cooled Models: There is one 3/4" FPT supply is cold water. Use 3/8" O.D. copper drain at the back of the cabinet, the drain line tubing, connect to the 3/8"... -
Page 7: For The Electrician
FM1500 FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES The electrical power to the unit is supplied Voltage variation must remain within design through the junction box at the rear of the limitations, even under starting conditions. machine. All external wiring must conform to Check the nameplate (located on the back national, state, and local electrical codes. -
Page 8: Final Check List
FM1500 FOR THE INSTALLER: Final Check List 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? LEVELED? 2. Is there an electrical service... -
Page 9: Start Up
9. Fill out the manufacturers registration card, The air cooled discharge pressure will depend and mail it to the Scotsman Factory. upon air and water temperatures, but should be between 200 psig and 280 psig. 10. Fill out the field quality audit form, and mail it to the Scotsman factory. -
Page 10: Component Description
FM1500 COMPONENT DESCRIPTION Control Box: Contains the electrical controls Water Level Sensor: Senses if there is water that operate the machine. in the reservoir to make ice out of. Will shut the machine off it there is none. Low Pressure Cut Out: A manual reset... - Page 11 FM1500 COMPONENT DESCRIPTION: Control Box Contactor: A definite purpose contactor Low Pressure Control (Cut Out): A manual connecting the compressor to the power reset control to shut off the ice machine when supply. the low side pressure drops below a preset point, 0-4 psig.
- Page 12 FM1500 COMPONENT DESCRIPTION Evaporator: A refrigerated vertical tube filled Breaker: Where the ice is compressed and water and containing a water seal and auger. much of the extra water is squeezed out of it before it is discharged into the bin.
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Page 13: Electrical Sequence
FM1500 ELECTRICAL SEQUENCE Refer the wiring diagram as needed. Shut Down consists of: • • The compressor relay opens. • • If the machine is switched off at the master The compressor contactor opens • • switch, but is otherwise ready to go, switching The compressor stops •... -
Page 14: Operation
FM1500 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. The water then goes out the bottom of the reservoir tank to the bottom of the evaporator. - Page 15 FM1500 OPERATION: Refrigeration Beginning at the compressor, the refrigerant At the evaporator, the refrigerant enters an 502 is compressed into a high temperature area of relatively low pressure, where it can gas. The discharge line directs this gas to the easily "boil off"...
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Page 16: Maintenance & Cleaning
FM1500 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 17 FM1500 MAINTENANCE ////////////////////////////WARNING//////////////////////////// Disconnect electrical power before ICE CHUTE beginning. SLIDE IN ///////////////////////////////////////////////////////////////////////// AND OUT 1. The bin control uses devices that sense light, therefore they must be kept clean ICE LEVEL enough so that they can "see". At least twice a...
- Page 18 FM1500 MAINTENANCE: Auger ///////////////////////////WARNING//////////////////////////// Disconnect electrical power before ALLEN HEAD begining. SCREWS Handle auger with care, it has sharp edges. ///////////////////////////////////////////////////////////////////////// In some installations the water supply to the icemaker will be so concentrated with dissolved minerals, (such as calcium BREAKER &...
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Page 19: Service Diagnosis
FM1500 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 20 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 21 FM1500 SERVICE DIAGNOSIS: Condition - No Ice Being 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 22 FM1500 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 23: Water Reservoir & Bin Control
FM1500 REMOVAL AND REPLACEMENT: Water Reservoir & Bin Control 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 24: Thrust Bearing And Breaker
5. The breaker may be removed from the a. Add food grade grease such as Scotsman auger and evaporator without disturbing the part number 19-0569-01 to the seal area auger. -
Page 25: Auger
FM1500 REMOVAL AND REPLACEMENT: Auger To Remove the Auger: Inspect the auger, the critical areas of the auger are: Turn off the water to the machine, and unclip the evaporator drain hose, pull it down and 1. The auger body. It should be clean and drain the evaporator into the bin or a container. -
Page 26: Water Seal
WATER SEAL 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 RETAINING where the water seal is to be mounted. RING 5. -
Page 27: Evaporator
FM1500 REMOVAL AND REPLACEMENT: Evaporator To Replace the Evaporator: (Assuming all the steps for removal of the REPLACING THE WATER SEAL thrust bearing, breaker, auger, and water seal have been performed.) 1. Discharge the refrigerant from the ice maker. 2. Unsweat the refrigerant connections: a) At the thermostatic expansion valve outlet. -
Page 28: Gearmotor
FM1500 REMOVAL AND REPLACEMENT: Gearmotor To Remove and Repair the Gearmotor If there is evidence of water in the oil (rusty Assembly: bearings and gears; the oil having a creamy white appearance; oil level too high) carefully (Assuming that the procedures through inspect the bearings and gears. - Page 29 FM1500 REMOVAL AND REPLACEMENT: Gearmotor WATER SHED CENTRIFUGAL SEAL SWITCH DRIVE MOTOR GEARCASE COVER, BEARINGS, OUTPUT GEAR, OUTPUT SHAFT BEARING 2ND GEAR AND BEARINGS SEAL 1ST GEAR AND BEARINGS GASKET GEARCASE February, 1989 Page 29...
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Page 30: Electronic Tester
FM1500 CIRCUIT BOARD TESTING ///////////////////////////////////////////////////////////////////////WARNING////////////////////////////////////////////////////////////////// These procedures require the machine to be connected to the power supply. The voltages of the electronic circuit are very low, but HIGHER VOLTAGES ARE PRESENT IN THE UNIT. Do not touch anything but the tester while the unit is being checked out. Make all connections to the circuit board with the ELECTRICAL POWER OFF. - Page 31 OFF. If not replace the circuit board. board. If the light does go off, replace the 2. Plug “water sen” connector from Scotsman water level sensor. tester into circuit board. a. Move “water” switch on tester to No Water position.
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