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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 INSTALLER: Specifications · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 3
FOR THE ELECTRICIAN · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 4
FOR THE PLUMBER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 5
FOR THE INSTALLER: Final Check List · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 6
INITIAL START UP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 7
COMPONENT IDENTIFICATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 8
COMPONENT DESCRIPTION: Evaporator · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 9
CONTROL BOX: Components · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 10
ELECTRICAL SEQUENCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 11
OPERATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 12
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 13
CLEANING and SANITATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 14
SENSOR MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 15
BEARING MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 16
AUGER MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 17
SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 18
SERVICE DIAGNOSIS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 19
CONTROL SYSTEM DIAGNOSTICS
REMOVAL AND REPLACEMENT · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 21
REMOVAL AND REPLACEMENT: Bearing And Breaker · · · · · · · · · · · · · · · · · · · · Page 22
REMOVAL AND REPLACEMENT · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 23
REMOVAL AND REPLACEMENT · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 24
REMOVAL AND REPLACEMENT: Evaporator · · · · · · · · · · · · · · · · · · · · · · · · · · Page 25
REMOVAL AND REPLACEMENT: Gearmotor · · · · · · · · · · · · · · · · · · · · · · · · · · Page 26
This manual was printed on recycled paper, keep it
for future reference.
Note the Warning symbol where it appears. It
marks a potential hazard.
The 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 system.
Table of Contents
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 20
November 2000
Page 1
Double System RL
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Related Manuals for Scotsman FME24RLM
Summary of Contents for Scotsman FME24RLM
- Page 1 Double System RL TO THE OWNER OR USER: The service manual you are reading is intended to The is the freezer portion of a commercial ice provide you, and the maintenance or service machine. It is designed to be connected to the technician, with the information needed to install, condensing section of a refrigeration system, start up, clean, maintain and service this ice...
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Page 2: For The Installer: Specifications
DRAIN 3/4" FPT The machine is designed to fit a variety of Scotsman Ice Systems are designed and Scotsman storage bins such as BH800 or SB480. manufactured with the highest regard for safety and performance. They meet or exceed the Installation Limitations: The machine is designed standards of U.L., N.S.F., and C.U.L. -
Page 3: For The Installer
F. liquid line temperature (assume a 0 F. evaporator temperature). Storage Bin: Scotsman’s B90 will be the presumed bin of choice. If using the bin extension BX87, install heavy duty leg kit KLP4 and place the bin into position. Remove the paper tape from the bin edge gasket, and install the bin extension onto the B90. -
Page 4: For The Electrician
Double System RL 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
Double System RL FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Supply: Drain System: The recommended water supply line is 3/8" O.D. All drains are of the gravity type, and must have a copper tubing, with a minimum operation pressure minimum of 1/4"... -
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
Double System RL INITIAL START UP 1. Remove the top and front panels. 7. Switch on the other master (mode) switch, observe that: · 2. Open the water valve, and observe that the two The liquid line valve opens float reservoirs fill up with water and shut off. ·... -
Page 8: Component Identification
Double System RL COMPONENT IDENTIFICATION Liquid line valve(s) EPR: Evaporator Pressure Regulator Valve These valves operate to turn the ice making This valve maintains a constant pressure on its process on and off. inlet (evaporators) side regardless of the pressure on the outlet (suction) side. -
Page 9: Component Description: Evaporator
Double System RL COMPONENT DESCRIPTION: Evaporator Evaporator: A refrigerated vertical tube filled Divider (only on FM or FME): Where the ice is water and containing a water seal and auger. compressed and much of the extra water is squeezed out of it before it is discharged into the Auger: A solid stainless steel double spiral auger, bin. -
Page 10: Control Box: Components
Double System RL CONTROL BOX: Components Circuit Board: Controlling the ice machine using On/Off (Mode) Switch: Manual control for that input from ice and water sensors. The board side of the machine. switches loads on and off through relays. 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 11: Electrical Sequence
Double System RL ELECTRICAL SEQUENCE There are 7 indicator lights on the control board: Shut Down: · · WTR-OK (Water OK). Green. Normal = The compressor relay opens, LED1 goes out. Glowing. Glows when there is water in the · The liquid line valve closes. -
Page 12: Operation
Double System RL 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 13 Double System RL OPERATION: Refrigeration The remote high side supplies high pressure liquid refrigerant to the liquid line connection on the ice machine. After the sight glass, there are two separate liquid lines, each leading to a liquid line valve. When the individual ice level sensor causes the circuit board to energize the liquid line valve, the valve opens, allowing the liquid refrigerant to enter that expansion valve.
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Page 14: Cleaning And Sanitation
Double System RL CLEANING and SANITATION 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: Sensor Maintenance
Double System RL SENSOR MAINTENANCE 1. The bin control uses devices that sense light, 2. The ice machine senses water level by a probe therefore they must be kept clean enough so that located in the water reservoir. At least twice a year, they can “see”. -
Page 16: Bearing Maintenance
· unscrewing the ice sweep evaporator. If the bearing only needs grease, inject grease into the bearing using Scotsman grease needle pn Ice Sweep 02-3559-01 and Scotsman bearing grease cartridge, pn A36808-001. Be sure to inject grease evenly and thoroughly. -
Page 17: Auger Maintenance
Double System RL AUGER MAINTENANCE In some installations the water supply to the ice Switch off electrical power, and shut off the water maker will be so concentrated with dissolved supply. minerals, (such as calcium carbonate) that as ice is For more information on removal of these parts, made, the evaporator and auger become coated see REMOVAL AND REPLACEMENT. -
Page 18: Service Diagnosis
Double System RL SERVICE DIAGNOSIS Symptom Possible Cause Probable Correction No ice is made, nothing Unit off due to no power. Restore power operates Unit off due to master switch in Off position Move master switch to ON Unit off due to low water level in reservoir Check water supply, filter and float valve. - Page 19 Poor fit between bin door and door Adjust or replace frame Machine makes too much noise Evaporator coated internally with Clean with Scotsman Ice Machine minerals Cleaner Motor bearings dry Oil or replace motor November 2000 Page 19...
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Page 20: Control System Diagnostics
If it is on, the ice sensors may be blocked. Remove NOT on, check the high pressure and low pressure them and check for mineral scale. Scotsman's test cut outs. If they are both closed, replace the board. box can also be used to determine if the ice sensors If the Power OK light is ON, go to the next step. -
Page 21: Removal And Replacement
Double System RL REMOVAL AND REPLACEMENT WATER RESERVOIR BIN CONTROLS (Ice Level Sensors) 1. Shut off the water supply to the ice maker. 1. Disconnect electrical power. 2. Remove front panel and reservoir cover. 2. Remove front panel. 3. To remove float only, disconnect water inlet 3. -
Page 22: Removal And Replacement: Bearing And Breaker
3. Unscrew and remove ice sweep. a. Add food grade grease such as Scotsman part 4. Lift up and remove ice chute. number 19-0569-01 to the seal area before 5. The breaker may be removed from the auger installing on the auger. - Page 23 Double System RL REMOVAL AND REPLACEMENT To Remove the Auger: e. If the auger is stuck use a slide hammer type puller to pull on the auger at the threaded hole. Turn off the water to the machine, and unclip the The size of that hole is 5/8"-18.
- Page 24 4. Place a small bead of food grade silastic sealant To Remove the Water Seal: (such as 732 RTV or Scotsman part number (Assuming all steps to remove the auger have 19-0529-01) on the area of the auger where the been performed.)
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Page 25: Removal And Replacement: Evaporator
Double System RL REMOVAL AND REPLACEMENT: Evaporator To Replace the Evaporator: To Reassemble the Evaporator and Auger (Assuming all the steps for removal of the thrust 1. After the gearmotor has been inspected, fasten bearing, breaker, auger, and water seal have been the evaporator to the gear motor, torque the bolts performed.) to 110 inch pounds. -
Page 26: Removal And Replacement: Gearmotor
Double System RL REMOVAL AND REPLACEMENT: Gearmotor To Remove and Repair the Gearmotor D) After replacing parts as required, (if any) Assembly: reassemble the gearcase. The two smaller gears and the oil should be in the lower case, the output (Assuming that the procedures through removal of gear will be with the cover.