Table of Contents
Advertisement
Quick Links
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 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2
FOR THE INSTALLER: Remote Condenser · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 3
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 4
Remote Condenser Location · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 5
FOR THE INSTALLER: Remote Condenser Installation · · · · · · · · · · · · · · · · · · · · · Page 6
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 7
FOR THE PLUMBER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 8
FOR THE ELECTRICIAN · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 9
FOR THE INSTALLER: Completed Installation · · · · · · · · · · · · · · · · · · · · · · · · · · Page 10
FOR THE INSTALLER: Final Check List · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 11
START UP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 12
COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 13
COMPONENT DESCRIPTION: Control Box Components · · · · · · · · · · · · · · · · · · · · Page 14
ELECTRICAL SEQUENCE: · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 15
OPERATION: Water · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 16
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 17
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 18
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 19
CLEANING and SANITATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 20
SENSOR MAINTENANCE: · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 21
BEARING MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 22
AUGER MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 23
SERVICE DIAGNOSIS:
SERVICE DIAGNOSIS:
CONTROL SYSTEM DIAGNOSTICS
REMOVAL AND REPLACEMENT: Reservoir · · · · · · · · · · · · · · · · · · · · · · · · · · Page 27
REMOVAL AND REPLACEMENT: Bearing And Breaker · · · · · · · · · · · · · · · · · · · · Page 28
REMOVAL AND REPLACEMENT: Auger · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 29
REMOVAL AND REPLACEMENT: Evaporator & Water Seal · · · · · · · · · · · · · · · · · · Page 30
REMOVAL AND REPLACEMENT: Evaporator · · · · · · · · · · · · · · · · · · · · · · · · · · Page 31
REMOVAL AND REPLACEMENT: Gearmotor
REFRIGERATION SYSTEM SERVICE
What to Do Before Calling for Service · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 34
Table of Contents
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 24
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 25
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 26
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 33
January 2000
NME1254R & FME1504R
· · · · · · · · · · · · · · · · · · · · · · · · · Page 32
Note this symbol
when it appears.
Page 1
It marks a possible hazard.
Advertisement
Table of Contents
Related Manuals for Scotsman FME1504R
Summary of Contents for Scotsman FME1504R
- Page 1 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 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2 FOR THE INSTALLER: Remote Condenser ·...
-
Page 2: For The Installer
NME954R & FME1204R FOR THE INSTALLER Either the FME1204R or the NME954R is 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). -
Page 3: For The Installer: Remote Condenser
They meet or exceed the Max. 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 +10% use of any part and/or other components not specifically approved by Scotsman. -
Page 4: Storage Bin
FOR THE INSTALLER 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, usually a minimum of 6 inches. -
Page 5: Remote Condenser Location
Location Limits - condenser location must not exceed ANY of the following limits: · Maximum rise from the ice machine to the condenser is 35 physical feet · Maximum drop from the ice machine to the condenser is 15 physical feet ·... -
Page 6: For The Installer: Remote Condenser Installation
FOR THE INSTALLER: Remote Condenser Installation Location: Limited to a 40 foot or a 25 foot length of precharged refrigerant tubing connecting the icemaker to the remote condenser. The condenser must be above or level with the icemaker. Select the best available location, protecting the condenser from extremes of dirt, dust, and sun. -
Page 7: Schrader Valve
2. Lubricate the inside of the couplings, especially the O-Rings with refrigerant oil. 3. Position the fittings on the correct connections on the condenser and ice machine. Clean and Lubricate Couplings · The ½ inch discharge line (schrader valve end) goes to the remote condenser fitting marked “discharge line.”... -
Page 8: For The Plumber
FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet The recommended water supply is cold water. Use 3/8" O.D. copper tubing, connect to the 3/8" male flare at the back of the cabinet. Install a hand valve near the machine to control the water supply. WATER INLET 3/8"... -
Page 9: For The Electrician
NME1254R & FME1504R 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 REMOTE CONDENSER for the minimum circuit ampacity. -
Page 10: For The Installer: Completed Installation
NME1254R & FME1504R FOR THE INSTALLER: Completed Installation A typical installation should generally appear as illustrated below. The remote condenser must be located above the icemaker and the precharged lines installed per the instructions on page 6. ROOF CUT-AWAY INSULATED PRECHARGED... -
Page 11: For The Installer: Final Check List
NME1254R & FME1504R 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? 2. Is there an electrical service... -
Page 12: Pre-Start Inspection
9 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. 10. Fill out the Customer Evaluation and Warranty Registration form, and mail it to Scotsman. January 2000 Page 12... -
Page 13: Component Description
CUT OUT 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 14: Component Description: Control Box Components
NME1254R & FME1504R COMPONENT DESCRIPTION: Control Box Components Contactor: A definite purpose contactor connecting the compressor and the remote condenser fan motor to the power supply. Circuit Board: Controlling the ice machine through sensors and relays. The sensors are: ice level, and water level. -
Page 15: Electrical Sequence
The liquid line valve will not reopen 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 16: Operation: Water
OPERATION: Water 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. Reservoir overflow or evaporator condensation is routed to the drain. -
Page 17: Operation: Refrigeration
OPERATION: Refrigeration Beginning at the compressor, the refrigerant is compressed into a high temperature gas. The discharge line directs this gas to the condenser and to the head pressure control At the remote condenser the gas is cooled by air and it then condenses into a liquid. - Page 18 OPERATION: Refrigeration The refrigeration system under low condenser air temperatures is much the same as it is under higher temperatures, with the exception that the resulting low head pressures cause the head pressure control to close off the liquid line between the condenser and the receiver.
-
Page 19: Discharge Line
At this NME1254R & FME1504R LIQUID LINE LIQUID LINE VALVE (CLOSED) -
Page 20: Cleaning And Sanitation
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 21: Sensor Maintenance
SLIDE IN AND ICE LEVEL SENSORS 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. -
Page 22: 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 23: Auger Maintenance
AUGER MAINTENANCE Hazardous Moving Parts. Moving auger can cause personal injury. Disconnect electrical power before beginning. In some areas the water supply to the icemaker will have a great deal of minerals in it, and that will result in an evaporator and auger becoming coated with these minerals, requiring a more frequent removal than twice per year. -
Page 24: Service Diagnosis
Auger can’t turn. Circuit board has not yet shut unit down. Circuit board has shut ice machine down due to high auger motor amp draw. Check for cause of high amp draw, including bearings, gear motor condition and scale on auger &... - Page 25 Check base of evaporator & drip pan. If the seal leaks, shut off the wter, remove the auger, replace the water seal. Check gear motor for water infiltration. Clean out bin drain Adjust or replace Clean with Scotsman Ice Machine Cleaner Oil or replace motor...
-
Page 26: 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 27: Removal And Replacement: Reservoir
REMOVAL AND REPLACEMENT: Reservoir 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 push locking tab in and pull float valve up and out of the reservoir tank. -
Page 28: 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 29: 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. b. The water seal area. Because the auger has been removed, the water seal will have to be replaced. -
Page 30: Removal And Replacement: Evaporator & Water Seal
HERE 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 31: Removal And Replacement: Evaporator
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 maker. 2. Unsweat the refrigerant connections: a) At the thermostatic expansion valve outlet. CAUTION Heat sink the TXV body when unsweating or resweating the adjacent tubing. -
Page 32: Removal And Replacement: Gearmotor
REMOVAL AND REPLACEMENT: Gearmotor Electrical Shock Hazard. Electrical power can cause personal injury. Disconnect electrical power before beginning. 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 33: Refrigeration System Service
REFRIGERATION SYSTEM SERVICE General: This ice machine uses R-404A refrigerant and polyolester oil. Do NOT use mineral oil in this refrigeration system. · When the system is serviced, a special liquid line drier is required. It is included with replacement compressors. -
Page 34: What To Do Before Calling For Service
NME1254R & FME1504R 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.