Scotsman FME1504R Service Manual Download Page 23

NME1254R & FME1504R

January 2000

Page 23

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. If in doubt about the

condition of the evaporator and auger, the auger

can be removed so the parts can be inspected.

Note. Water filters can filter out suspended solids,

but not dissolved solids. “Soft” water may not be

the complete answer. Check with a water

treatment specialist regarding water treatment.

For more information on removal of these

parts, see REMOVAL AND REPLACEMENT.

1. To remove the auger, remove front and top

panels.

2. Remove bail clip holding the ice chute cover to

the ice chute body, and remove the cover.

3. Unscrew and remove ice sweep.

4. Remove ice chute body from evaporator.

5. Remove 4 allen screws holding breaker to

evaporator.

6. Pull up on breaker to remove auger.

Allow the auger to dry, the stainless steel of the

auger and evaporator must be clean and bright.

Clean the auger and evaporator as required.

DO NOT HONE THE EVAPORATOR.

7. Replace the water seal.

8. Reverse to reassemble.

Remote Condenser

:

Clean the fins of the remote condenser. Use a soft

brush or vacuum. Use coil cleaner if grease is

embeded in the fins.

AUGER MAINTENANCE

ALLEN

SCREWS

BREAKER &

BEARING &

AUGER

ASSEMBLY

The auger has sharp edges,

handle with gloves.

Hazardous Moving

Parts.

Moving auger can cause

personal injury.

Disconnect electrical

power before beginning.

Summary of Contents for FME1504R

Page 1: ...2 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...

Page 2: ...KBT46 and KDIL N 250 Lancer nugget IBD use KDIL N L Lancer kit NME954R FME1204R January 2005 Page 2 Liquid Line Connection Discharge Line Connection Remote Condenser Junction Box Electrical Inlet Wate...

Page 3: ...grees F Operating the machine outside of the limitations is misuse and can void the warranty Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance They...

Page 4: ...gasket Install bin top if required follow the directions included with the bin top Note Do not push bin into position but lift it there Pushing a bin especially one with ice in it can cause damage to...

Page 5: ...Horizontal Run dd rd hd Calculated Line Length Configurations that do NOT meet these requirements must receive prior written authorization from Scotsman Do NOT Route a line set that rises then falls...

Page 6: ...charged refrigerant lines either 25 foot or 40 foot consists of a 3 8 inch diameter liquid line and a 1 2 inch diameter discharge line Both ends of each line have quick connect couplings one end has a...

Page 7: ...properly engaged 4b Using two wrenches one to rotate the swivel nut and one to hold the tubing tighten each coupling It is CRITICAL that ONLY the NUT on the pre charged tube be turned or the diaphragm...

Page 8: ...line is of the gravity type and 1 4 inch per foot fall is an acceptable pitch for the drain tubing There should be a vent at the highest point of the drain line and the ideal drain receptacle would b...

Page 9: ...als for the compressor and the fan motor operates whenever the compressor operates Electrical connections are made at the junction box at the back of the icemaker and at the junction box on the remote...

Page 10: ...eted Installation ROOF CUT AWAY INSULATED PRECHARGED REFRIGERANT TUBING A typical installation should generally appear as illustrated below The remote condenser must be located above the icemaker and...

Page 11: ...ure a minimum of 20 psig 7 Has the machine been secured to the bin 8 Is there a water shut off valve installed near the machine 9 Is the remote condenser installed per local building codes and in a pl...

Page 12: ...tomatic A There should be a short 15 second delay before the gearmotor starts B After the gearmotor starts the liquid line valve will open the pump down control will close and the compressor will star...

Page 13: ...Senses if there is water in the reservoir to make ice out of Will shut the machine off it there is none Ice Discharge Chute Directs the ice produced by the evaporator into the storage bin Ice Level Se...

Page 14: ...ce machine through sensors and relays The sensors are ice level and water level 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...

Page 15: ...ens LED1 goes out The liquid line valve closes stopping refrigerant flow The pump down control opens after the suction pressure falls to its cut out point The compressor contactor opens The compressor...

Page 16: ...of the evaporator Reservoir overflow or evaporator condensation is routed to the drain RESERVOIR EVAPORATOR DRAIN WATER LEVEL WATER INLET DRAIN Water Level The correct water level should be checked wh...

Page 17: ...mostatic expansion valve meters liquid refrigerant into the evaporator the volume of liquid refrigerant depending upon the temperature of the evaporator warmer evaporators get more refrigerant and col...

Page 18: ...the receiver This forces more refrigerant into the condenser with a small amount of discharge gas going into the receiver to maintain pressure until the head pressure is built back up to 180 psig At t...

Page 19: ...head pressure control and into the receiver At this point the refrigerant flow is stopped by the closed liquid line valve This action forces the refrigerant into the receiver and keeps it out of the c...

Page 20: ...e cleaning solution into the water reservoir until it is full Wait 15 minutes then switch the master switch to ON 9 As the ice maker begins to use water from the reservoir continue to add more cleanin...

Page 21: ...an as illustrated 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...

Page 22: ...ring and breaker should be removed to check the action of the bearing It should rotate smoothly To remove the breaker remove the lower ice chute then take out all four allen head cap screws and pull t...

Page 23: ...the auger remove front and top panels 2 Remove bail clip holding the ice chute cover to the ice chute body and remove the cover 3 Unscrew and remove ice sweep 4 Remove ice chute body from evaporator 5...

Page 24: ...ms but does not turn Auger can t turn Circuit board has not yet shut unit down Unit is shut down Circuit board has shut ice machine down due to high auger motor amp draw Check for cause of high amp dr...

Page 25: ...Tubing cracked Replace tubing Condensation on drain tubing Insulate tubing Hose off Re attach hose Reservoir cover off Return cover to reservoir Reservoir cracked Replace reservoir Evaporator water s...

Page 26: ...contactor coil 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 Using the...

Page 27: ...rvoir bracket and remove reservoir from icemaker 9 Reverse to reassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front panel 3 Remove control box cover 4 Locate ice chute...

Page 28: ...age a The bearing is pressed into the breaker to remove the bearing and replace it an arbor press is needed b Replace lower seals before installing new bearing in breaker Note seals must be pressed in...

Page 29: ...rator d Use a slide hammer type puller to pull on the auger at the threaded hole The size of that hole is 5 8 18 Inspect the auger the critical areas of the auger are a The auger body It should be cle...

Page 30: ...pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the auger and clean the mounting area 4 Place a small bead o...

Page 31: ...mble the Evaporator and Auger 1 After the gearmotor has been inspected fasten the evaporator to the gear motor be sure that the number of shims indicated on the gear case cover is in place between the...

Page 32: ...here is evidence of water in the oil rusty bearings and gears the oil having a creamy white appearance oil level too high carefully inspect the bearings and gears If in doubt about the condition of a...

Page 33: ...capable of detecting a Halongenated refrigerant or HFC 134a will work Check with the leak detector manufacturer if in doubt Evacuate to 300 microns Liquid charge the system Access Valves To use the ac...

Page 34: ...hut off if there is no water to it Check the filters if there are any 2 Check the power supply to the machine Reset the breaker if it is tripped 3 If both water and power have been checked and are ava...

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