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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.
FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FOR THE INSTALLER: Environmental Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FOR THE ELECTRICIAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FOR THE INSTALLER: Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ELECTRICAL SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
MAINTENANCE: Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SERVICE DIAGNOSIS: Condition - No Ice Being Produced . . . . . . . . . . . . . . . . . . . . . . . . 18
SERVICE DIAGNOSIS: Condition - Low Ice Production . . . . . . . . . . . . . . . . . . . . . . . . . . 21
REMOVAL AND REPLACEMENT: Water Reservoir & Bin Control . . . . . . . . . . . . . . . . . . . . 22
REMOVAL AND REPLACEMENT: Bearing And Breaker . . . . . . . . . . . . . . . . . . . . . . . . . 23
REMOVAL AND REPLACEMENT: Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
REMOVAL AND REPLACEMENT: Water Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
REMOVAL AND REPLACEMENT: Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
REFRIGERATION SERVICE: HP62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CIRCUIT BOARD TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper.
This manual was printed on recycled paper.
Keep it for future reference.
The FME1500 features: front service for the
evaporator, gearmotor, control box, water reservoir
and bin control; electronic circuitry for monitoring
ice and water level; a thermostatic expansion
valve; and HP62 as the refrigerant.
TABLE OF CONTENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
August 1993
Page 1
Note this symbol when it appears.
It marks a potential hazard.
FME1500
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Table of Contents
Related Manuals for Scotsman FME1500
Summary of Contents for Scotsman FME1500
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Page 1: Table Of Contents
Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper. This manual was printed on recycled paper. Keep it for future reference. The FME1500 features: front service for the evaporator, gearmotor, control box, water reservoir and bin control; electronic circuitry for monitoring ice and water level;... -
Page 3: For The Installer: Environmental Limitations
They meet or exceed the standards of 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, including the use of any part and/or other components not specifically approved by Scotsman. -
Page 4: For The Installer
FME1500 FOR THE INSTALLER Location LEVEL THE After uncrating and inspection, the unit ASSEMBLY 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: For The Plumber
Storage Bin: A separate gravity type drain needs to be run, similar to the air cooled drain. Insulation of this drain line is recommended. August 1993 Page 5 FME1500 ICE MAKER DRAIN 3/4" FPT BIN DRAIN 3/4" FPT... -
Page 6: For The Electrician
FME1500 FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES The electrical power to the unit is supplied through the junction box at the rear of the machine. Check the nameplate (located on the back panel) for the voltage requirements, and for the minimum circuit ampacity. -
Page 7: For The Installer: Final Check List
FME1500 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 disconnect... -
Page 8: Start Up
8. Give the owner/user the service manual, instruct him/her in the operation of the unit, and make sure they know who to call for service. 9. Fill out the Customer Evaluation and Registration form, and mail it to Scotsman. June 1994 Page 8... -
Page 9: Component Description
Ice Level Sensor: An electronic "eye", it senses the presence of ice in the bottom of the ice discharge chute. Operates to turn the ice machine on and off automatically as the level of ice in the bin changes. - Page 10 Transformer: Supplies low voltage to the circuit board. Low Pressure Control (Cut Out): A manual reset control to shut off the ice machine when the low side pressure drops below a preset point, 0-4 psig. Potential Relay: The compressor start relay.
- Page 11 Motor: A split phase motor that drives the gear reducer. Bearing: As the ice is pushed up the evaporator, the auger is thrust down, and pressure from the auger thrust is taken up by this bearing. SWEEP BEARING AUGER EVAPORATOR August 1993 Page 11 FME1500 DRIVE MOTOR...
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Page 12: Electrical Sequence
FME1500 ELECTRICAL SEQUENCE: "A" Models Refer the wiring diagram as needed. If the machine is switched off at the master switch, but is otherwise ready to go, switching the master switch to on and pressing the start reset switch does the following:... -
Page 13: Operation
The water level should be between The water level may be adjusted by bending the arm CHUTE DRAIN WATER SCHEMATIC August 1993 Page 13 FME1500 " above and " below the line. of the float as needed. WATER LEVEL EVAPORATOR... - Page 14 FME1500 OPERATION: Refrigeration Beginning at the compressor, the refrigerant is compressed into a high temperature gas. The discharge line directs this gas to the condenser. At the condenser (air or water cooled) the gas is cooled by either air or water and it then condenses into a liquid.
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Page 15: Cleaning
CLEANING & SANITIZING 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 16 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.
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Page 17: Maintenance: Auger
4. Check the fins for dirt, clean as needed until light can be seen through the condenser. 5. Replace panel and reconnect power. August 1993 Page 17 FME1500 ALLEN HEAD SCREWS BREAKER & BEARING & AUGER ASSEMBLY... -
Page 18: Service Diagnosis: Condition - No Ice Being Produced
FME1500 SERVICE DIAGNOSIS: Condition - No Ice Being Produced 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 reset switches, (high and low pressure): depress and release each switch. If the still does not start, check the high and the low side pressures. - Page 19 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 Tester Model NM1 into the circuit board.
- Page 20 FME1500 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.
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Page 21: Service Diagnosis: Condition - Low Ice Production
The compressor should pull down to 25 inches of vacuum and hold there for three to five minutes August 1993 Page 21 FME1500... -
Page 22: Removal And Replacement: Water Reservoir & Bin Control
FME1500 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. Disconnect water inlet compression fitting at reservoir inlet. 4. To remove float valve, push in on locking tab and lift float valve out of reservoir tank. -
Page 23: 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 24: Removal And Replacement: Auger
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 25: Removal And Replacement: 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 where the water seal is to be mounted. -
Page 26: Removal And Replacement: Evaporator
FME1500 REMOVAL AND REPLACEMENT: Evaporator REPLACING THE WATER SEAL PLACE A BEAD OF ROTATING HALF OF WATER SEAL To Replace the Evaporator: (Assuming all the steps for removal of the thrust bearing, breaker, auger, and water seal have been performed.) 1. -
Page 27: Removal And Replacement: Gearmotor
4. Bench test the gearmotor, check for oil leaks, noise, and amp draw. WATER SHED COVER August 1993 Page 27 FME1500 MOTOR BEARING SEAL FIRST GEAR SECOND GEAR GASKET GEAR CASE... -
Page 28: Refrigeration Service: Hp62
FME1500 REFRIGERATION SERVICE: R-404a THIS ICE MACHINE USES R-404a (HP62) REFRIGERANT AND POLYOLESTER COMPRESSOR OIL. DO NOT USE MINERAL OIL IN THIS REFRIGERATION SYSTEM. HP62 is a "Near Azeotrope", and therefore liquid charging is preferred. When the system is serviced, a special liquid line dryer is required. - Page 29 Scotsman also recommends that, at the time of initial start up, gauges not be used. If gauges must be used, don’t always check the high side pressure.
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Page 30: Circuit Board Testing
FME1500 CIRCUIT BOARD TESTING Electrical Shock Hazard. Electrical power can cause personal injury. Disconnect electrical power before connecting tester. INSTRUCTIONS FOR USING TESTER, (Optional, order part no. A33942-001) (These instructions assume that the unit will not run, and prior investigation of electric power, controls, and mechanical parts indicates that the electronic circuit may be at fault.) -
Page 31: August
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.