Scotsman FME804R Service Manual Download Page 4

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NME654R & FME804R

January 2000

Page 4

REMOTE CONDENSER SPECIFICATIONS

RTE25 Precharged line set, 25’, R-404A

RTE40. Precharged line set, 40’, R-404A

ICEMAKER NAMEPLATE

LOCATED ON BACK PANEL

SERIAL PLATE LOCATED

Adjustable Roof Clearance

12.00

18.00

24.00

30.48

45.72

60.95

Discharge Line

.50 Quick Connect Fitting

1.27

Liquid Line

.38 Quick Connect Fitting

.95

.53

1.35 (6)

Air Intake

Air Discharge

14.53

2.75

19.75

50.17

2.00

5.08

2.07

Model

Use with

Basic Electrical

ERC101-1 1 FME804R or 1 NME654R 115/60/1

ERC DIMENSIONS

Model

ERC101 33

Summary of Contents for FME804R

Page 1: ...Location Page 8 FOR THE PLUMBER Page 9 FOR THE ELECTRICIAN Page 10 FOR THE INSTALLER Completed Installation Page 11 FOR THE INSTALLER Final Check List Page 12 START UP Page 13 COMPONENT DESCRIPTION Pa...

Page 2: ...dapter KBT42 and KNUGDIV ID200 or ID250 use adapter KBT46 and KDIL N ID2 Cornelius ED DF200 beverage dispensers use KBT46 and KDIL N 200 Cornelius ED DF250 beverage dispensers use KBT46 and KDIL N 250...

Page 3: ...in a location where it has enough space around it to be accessible for service usually a minimum of 6 inches Try to avoid hot dirty and crowded locations Be sure that the location for the machine is w...

Page 4: ...PLATE LOCATED Adjustable Roof Clearance 12 00 18 00 24 00 30 48 45 72 60 95 Discharge Line 50 Quick Connect Fitting 1 27 Liquid Line 38 Quick Connect Fitting 95 53 1 35 6 Air Intake Air Discharge 14...

Page 5: ...d 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 then rises Route a l...

Page 6: ...ists 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 schrader valve connection that end goes to the condense...

Page 7: ...ne to hold the tubing tighten each coupling It is CRITICAL that ONLY the NUT on the pre charged tube be turned or the diaphragms will be torn loose by the piercing knives and be loose in the refrigera...

Page 8: ...04R January 2000 Page 8 FOR THE INSTALLER Location TYPICAL INSTALLATION REMOTE CONDENSER EXCESS PRECHARGED TUBING INSIDE BUILDING Ice Machine SERVICE ACCESS SERVICE ACCESS SIDE AND BACK ROOF CUTAWAY W...

Page 9: ...the gravity type and 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 be a trapped and...

Page 10: ...ser fan motor Install an interconnecting wire between the remote condenser and the junction box at the back of the ice machine The remote condenser must be wired to the ice machine in accordance with...

Page 11: ...ed 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 ice machine and...

Page 12: ...PSI 7 Has the machine been secured to the bin 8 If two units on one condenser has the relay kit been installed 9 Is there a water shut off valve installed near the machine 10 Is the remote condenser...

Page 13: ...Turn the master switch on The electrical start up sequence is automatic A There should be a short 15 second delay before the gearmotor starts B After the gearmotor starts the liquid line valve will o...

Page 14: ...l Sensor 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...

Page 15: ...he various loads The sensors include Photo electric eyes for bin level Conductivity probe for water level in the reservoir Current meter to measure the amp draw of the auger drive motor The loads incl...

Page 16: ...frigerant flow The pump down control opens after the suction pressure falls to its cut out point The compressor contactor opens The compressor stops The auger motor stays on for 1 more minute clearing...

Page 17: ...r evaporator condensation is routed to the drain NME654R FME804R January 2000 Page 17 RESERVOIR DRAIN TUBE WATER LEVEL WATER INLET DRAIN Water Level The correct water level should be checked when the...

Page 18: ...e temperature of the evaporator warmer evaporators get more refrigerant and colder evaporators get less At the evaporator the refrigerant enters an area of relatively low pressure where it can easily...

Page 19: ...rant 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 the rated gauge pressure of 180 PSIG At that press...

Page 20: ...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 compressor The pump down continues until the low pre...

Page 21: ...between 90 and 115 degrees F 8 Slowly pour the 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 f...

Page 22: ...e the inside clean 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...

Page 23: ...ction 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 the breaker off the auger and evaporator If the be...

Page 24: ...on removal and replacement of these parts see REMOVAL AND REPLACEMENT 1 To remove the auger remove the front and top panels 2 Move bail clamp holding ice chute cover to ice chute and remove cover 3 Un...

Page 25: ...and 380 depending upon air and water temperatures Refrigerant Charge 208 ounces of R 404A Typical Compressor Amp Draw 8 9 Typical Gearmotor Amp Draw 3 5 to 3 8 High Pressure Cut Out 450 PSIG Pump Dow...

Page 26: ...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 27: ...refrigerant charge Locate leak Recover refrigerant repair leak replace dryer evacuate and weigh in the nameplate charge Water leak Ice storage bin drain restricted Clean out drain Tubing cracked Repl...

Page 28: ...r 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 th...

Page 29: ...ve reservoir from icemaker 8 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 at the base of the ch...

Page 30: ...he 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 with a...

Page 31: ...remove from auger If the auger is stuck 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...

Page 32: ...the snap ring and 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 Pl...

Page 33: ...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 gearcase...

Page 34: ...ey are likely to be fine if the oil is If there 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...

Page 35: ...and it must be found and repaired This system has a critical charge it must be recharged with the correct amount of refrigerant as listed on the nameplate of the ice machine or performance will suffer...

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