Scotsman FME1204 User Manual
Scotsman fme1204 ice machine: user guide
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Also See for FME1204:
- Specification sheet (2 pages) ,
- Brochure & specs (4 pages) ,
- Service parts (14 pages)
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INTRODUCTION
To the owner or user: This manual 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 is a modular type ice system that fits a variety
of Scotsman ice storage bins.
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2
SAMPLE BIN AND MACHINE COMBINATIONS · · · · · · · · · · · · · · · · · · · · · · · · · Page 3
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 4
FOR THE INSTALLER: Location · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 5
FOR THE PLUMBER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 6
FOR THE ELECTRICIAN · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 7
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 8
START UP· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 9
COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 10
COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 11
CONTROL BOX: Components · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 12
ELECTRICAL SEQUENCE: · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 13
OPERATION: Water· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 14
OPERATION: Performance · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 15
SANITIZING AND CLEANING · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 16
SENSOR MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 17
BEARING MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 18
MAINTENANCE: Air Cooled· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 19
AUGER MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 20
SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 21
SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 22
CONTROL SYSTEM DIAGNOSTICS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 23
REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls · · · · · · · · · · · · · · · Page 24
REMOVAL AND REPLACEMENT: Bearing And Breaker · · · · · · · · · · · · · · · · · · · · · Page 25
REMOVAL AND REPLACEMENT: Auger· · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 26
REMOVAL AND REPLACEMENT: Water Seal · · · · · · · · · · · · · · · · · · · · · · · · · · Page 27
REMOVAL AND REPLACEMENT: Evaporator · · · · · · · · · · · · · · · · · · · · · · · · · · Page 28
REMOVAL AND REPLACEMENT: Gearmotor · · · · · · · · · · · · · · · · · · · · · · · · · · Page 29
REMOVAL AND REPLACEMENT: Fan Blade and Motor· · · · · · · · · · · · · · · · · · · · · Page 30
REFRIGERATION SYSTEM SERVICE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 31
What to Do Before Calling for Service· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 32
This manual was printed on recycled paper. Keep
it for future reference.
Its features include: front service for the freezer,
gear motor, control box, water reservoir, and bin
control; an electronic circuit for monitoring ice and
water level; a thermostatic expansion valve; and
R-404A as the refrigerant.
Table of Contents
Note the warning symbol
where it appears. It marks a
possible hazard.
May 2001
Page 1
NME954 & FME1204
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Table of Contents
Related Manuals for Scotsman FME1204
Summary of Contents for Scotsman FME1204
- Page 1 This is a modular type ice system that fits a variety of Scotsman ice storage bins. FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2 SAMPLE BIN AND MACHINE COMBINATIONS ·...
- Page 2 NME954 & FME1204 FOR THE INSTALLER BACK VIEW: AIR COOLED WATER INLET " FLARE DRAIN ¾" FPT These models are designed to fit the following Scotsman storage bins: · SB480 and extensions (with bin top KBT18) · BH800 using bin top KBT15 (one unit) or KBT25 (two units).
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Page 3: Sample Bin And Machine Combinations
NME954 & FME1204 SAMPLE BIN AND MACHINE COMBINATIONS FME1204 ON BH550* NME954 ON BH800* The Nameplate is located on the back of the machine. FME1204 ON BH900* * Bin Top Kit Required May 2001 Page 3... -
Page 4: For The Installer
They meet or exceed the standards of UL, NSF and CUL. 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 5: For The Installer: Location
NME954 & FME1204 FOR THE INSTALLER: Location A proper installation locates the machine indoors, but in a place where the heat and noise it produces are not objectionable. Air cooled machines discharge hot air out the back. 6" of space behind the machine is the minimum required for adequate operation of an air cooled unit. -
Page 6: For The Plumber
NME954 & FME1204 FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Air Cooled Models: The recommended water supply is clean, cold water. Use tubing, connect to the " male flare at the back of the cabinet. Install a hand valve near the machine to control the water supply. -
Page 7: For The Electrician
Connect the power supply to the wires leads in the junction box on the back of the machine. Connect the ice machine to its own electrical circuit so it is individually fused. Voltage variation must WATER COOLED AIR COOLED NME954 &... - Page 8 NME954 & FME1204 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...
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Page 9: Start Up
200 psig and 280 psig. The water cooled discharge pressure should be constant at about 245 psig. NME954 & FME1204 Pre-Start Inspection Start Up The above numbers are for new, clean machines, you can expect to see some values higher, and some lower between different units. -
Page 10: Component Description
NME954 & FME1204 COMPONENT DESCRIPTION Control Box: Contains the electrical controls that operate the machine. High Pressure Cut Out Switch: An auto-reset switch sensing the high side refrigeration pressure. It will shut the machine off if the discharge pressure should ever exceed 450 psig. - Page 11 “sweep” the ice into the ice chute. Water Seal NME954 & FME1204 Breaker (Divider): Where the ice is compressed and much of the extra water is squeezed out of it before it is discharged into the bin.
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Page 12: Control Box: Components
NME954 & FME1204 CONTROL BOX: Components Contactor: A definite purpose contactor connecting the compressor and the fan motor to the power supply. Circuit Board: Controls the operation of the ice machine using input from sensors and pressure controls. Switches loads on and off thru relays. -
Page 13: Electrical Sequence
The compressor will not restart until 2 minutes or more have passed after the last shut down. If the path between the ice level sensors remains clear for more than 10 seconds the ice machine will restart. Control Board Protection Devices ·... -
Page 14: Operation: Water
NME954 & FME1204 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: Operation: Performance
15 PSIG Refrigerant Charge · Air Cooled: 30 ounces R-404A · Water Cooled: 24 ounces R-404A Condenser Liquid Line Motor Refrigeration Schematic NME954 & FME1204 Discharge Line Thermostatic Expansion Valve Compressor May 2001 Page 15 Suction Line Evaporator Gear Motor... -
Page 16: Sanitizing And Cleaning
That chemical dissolves mineral build up that forms during the ice making process. Sanitize the ice storage bin as frequently as local health cods require, and every time the ice machine is cleaned and sanitized. -
Page 17: Sensor Maintenance
Slide To Remove Clean The Ice Level Sensors NME954 & FME1204 2. The ice machine uses a probe in the reservoir to determine if there is water. At least twice a year remove the probe from the reservoir and wipe the tip clean of mineral build-up. -
Page 18: Bearing Maintenance
Ice Sweep If the bearing only needs grease, inject grease into the bearing using Scotsman grease needle pn 02-3559-01 and Scotsman bearing grease cartridge, pn A36808-001. Be sure to inject grease evenly and thoroughly. -
Page 19: Maintenance: Air Cooled
Check with a flash light from the front to see if light can be seen though the condenser fins. Reverse to reassemble. NME954 & FME1204 REMOVE TWO SCREWS & UNPLUG FAN MOTORS. PULL FAN MOTOR ASSEMBLY UP AND... -
Page 20: Auger Maintenance
NME954 & FME1204 AUGER MAINTENANCE In some areas, the water supply to the Ice Machine will contain a high concentration of minerals, and that will result in an evaporator and auger becoming coated with these minerals, requiring a more frequent removal than twice per year. If in... -
Page 21: Service Diagnosis
Compressor contactor coil is open Compressor will not start Circuit board compressor relay will not close. May 2001 Page 21 NME954 & FME1204 Probable Correction Restore Power Switch master switch to ON. Check water supply, filter, strainer, float valve. Correct water supply. - Page 22 Replace float valve or seat Recover and weigh refrigerant. Weigh in correct charge. Acid clean water cooled condenser. Clean out bin drain. Drains must be separate. Adjust or replace Clean with Scotsman Ice Machine Cleaner Oil or replace motor...
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Page 23: Control System Diagnostics
If it is on, the ice sensors may be blocked. Remove them and check for mineral scale. Scotsman's test box can also be used to determine if the ice sensors or board are defective. -
Page 24: Removal And Replacement: Water Reservoir & Bin Controls
NME954 & FME1204 REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls WATER RESERVOIR 1. Shut off the water supply to the ice maker. 2. Remove front panel. 3. Remove reservoir cover. 4. Disconnect water inlet tube from reservoir inlet fitting. -
Page 25: 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 26: Removal And Replacement: Auger
NME954 & FME1204 REMOVAL AND REPLACEMENT: Auger To Remove the Auger: Turn off the water to the machine, and unclip the evaporator drain hose, pull it down and drain the evaporator into the bin or a container. 1. Remove the top panel. -
Page 27: 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 28: Removal And Replacement: Evaporator
NME954 & FME1204 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. Recover the refrigerant from the Ice Machine. 2. Unsweat the refrigerant connections:... -
Page 29: Removal And Replacement: Gearmotor
The oil charge is 14 oz. Do not overfill. Reassemble and bench test the gear motor, check for oil leaks, noise, and amp draw. Water Shed May 2001 Page 29 NME954 & FME1204 Centrifugal Switch Auger Drive Motor Rotor Bearing... -
Page 30: Removal And Replacement: Fan Blade And Motor
NME954 & FME1204 REMOVAL AND REPLACEMENT: Fan Blade and Motor Electrical shock hazard. Electrical shock can cause personal injury. Disconnect power before beginning to service components. To Remove the Condenser Fan Motor Assembly 1. Remove top panel and the two service panels. -
Page 31: Refrigeration System Service
Tank Must 11. Shut the low side access valve on the ice Be in Liquid machine. Dispensing 12. Remove hoses from ice machine and replace Position - all caps. Check Tank! SCALE May 2001 Page 31 NME954 & FME1204... -
Page 32: What To Do Before Calling For Service
NME954 & FME1204 What to Do Before Calling for Service If the machine is off, not making ice: 1. Check the water supply to the ice machine. The machine is designed to shut off if there is no water to it. Check the filters if there are any.