Scotsman FME2400R Service Manual Download Page 11 | Manualshive

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FOR THE INSTALLER: Completed Installation

INSULATED

PRECHARGED

REFRIGERANT

TUBING

A typical installation should generally appear as
illustrated below. The remote condenser must be
located above the ice maker and the precharged
lines installed per the instructions on page 6.

NME1850R & FME2400R

January 1995

Page 11

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Summary of Contents for FME2400R

Page 1: ...tion Page 11 FOR THE INSTALLER Final Check List Page 12 START UP Page 13 COMPONENT DESCRIPTION Page 14 COMPONENT DESCRIPTION Control Box Page 15 ELECTRICAL SEQUENCE Page 16 OPERATION Water Page 17 OPE...

Page 2: ...21 3 1 3 1 4 5 9 43 17 8 18 8 There are two separate ice making and refrigeration systems in this model The liquid and discharge lines from each system must go to separate circuits in one remote conde...

Page 3: ...ck with a water treatment specialist for a water test and recommendations regarding filters and treatment 2 In most cases the water used to make ice should be filtered or treated depending upon the wa...

Page 4: ...AKER NAMEPLATE LOCATED ON BACK PANEL SERIAL PLATE LOCATED BEHIND FRONT PANEL REMOTE CONDENSERS AND BINS ALSO HAVE MODEL AND SERIAL NUMBERS Model Use with Basic Electrical RCE502 32 1 FME2400R or NME18...

Page 5: ...later Return the bin to the upright position remove paper covering the bin gasket Install the bin top according to the directions with the bin top Note Do not push bin into position but lift it there...

Page 6: ...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 condenser Note The o...

Page 7: ...rked discharge line 3 Begin tightening the couplings together by hand then using two wrenches it is important that ONLY the nut on the precharged lines be turned the other parts of the couplings must...

Page 8: ...ER Location REMOTE CONDENSER EXCESS PRECHARGED TUBING INSIDE BUILDING ICE MAKER SERVICE ACCESS SERVICE ACCESS SIDE AND BACK ROOF CUTAWAY WALL CUTAWAY CONTACT ROOFING CONTRACTOR NME1850R FME2400R Janua...

Page 9: ...ity 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 be a trapped and vent...

Page 10: ...pressor and the fan motor operates whenever the compressor operates Electrical connections are made at the junction box at the back of the ice maker and at the junction box on the remote condenser The...

Page 11: ...HARGED REFRIGERANT TUBING A typical installation should generally appear as illustrated below The remote condenser must be located above the ice maker and the precharged lines installed per the instru...

Page 12: ...sure 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 p...

Page 13: ...n The electrical start up sequence is now on automatic A There should be a short 15 second delay before the gear motor starts B After the gear motor starts the liquid line valve will open the low pres...

Page 14: ...e Discharge Chute Directs the ice produced by the evaporator into the storage bin Ice Level Sensor An electronic eye it senses the presence of ice in the bottom of the ice discharge chute Operates to...

Page 15: ...to clear the evaporator of ice when the unit turns off and for the liquid line valve Transformer Supplies low voltage to the circuit board Pump Down Control An automatic reset pressure switch connect...

Page 16: ...y on and the machine will continue to run unless the ice stays between the sensors for more than 15 seconds bin full At that point the bin empty light goes out and the machine shuts down Shut Down con...

Page 17: ...through the float valve The water them goes out the bottom of the reservoir tanks to the bottom of the evaporators Reservoir overflow or evaporator condensation is combined into a common drain line an...

Page 18: ...nt enters an area of relatively low pressure where it can easily boil off or evaporate As it evaporates it absorbs heat from the evaporator and whatever is in contact with it such as the water inside...

Page 19: ...to the receiver There are two separate refrigeration systems in this machine PUMP DOWN During the pump down cycle usually initiated by the circuit board de energizing the liquid line valve the discha...

Page 20: ...switch the master switch to OFF 11 After draining the reservoir as in step 6 wash and rinse the water reservoir 12 Go thru steps 13 19 to sanitize the ice machine water system 13 Mix two gallons of sa...

Page 21: ...ring by removing the ice chute cover unscrewing the ice sweep removing the water shed unscrewing the breaker cover left hand thread unscrewing the auger stud Inspect the assembly looking for wear 4 Cl...

Page 22: ...more information on removal and replacement of these parts see REMOVAL AND REPLACEMENT Shut off water and electrical supply 1 To remove the auger remove the front and top panels 2 Push back bail clam...

Page 23: ...ould be moved or the air around it kept cooler Check the fan motor for tight bearings and proper rotation Check that the fan blades are clean and the fan secure to the fan motor shaft b Check the head...

Page 24: ...If the bin full light on the tester is ON move the tester switch to bin empty the light on the tester should go OFF and the bin empty light on the circuit board should go ON If not replace the circui...

Page 25: ...frigerant if the unit begins to operate normal low side pressure being about 32 psig stop and look for a leak recover repair replace the drier evacuate and weigh in the nameplate charge If with added...

Page 26: ...restricted defective or not adjusted properly If needed replace the TXV evacuate and recharge per nameplate 4 Check the insulation on the evaporator It should be dry with no wet spots or frost If the...

Page 27: ...mble 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 chute in front of and behind it are two plastic...

Page 28: ...h spots and damage 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 mus...

Page 29: ...rew auger stud from top of auger c Unscrew 4 allen head cap screws holding breaker to evaporator d Lift up on breaker to remove from auger If the auger is stuck Use a slide hammer type puller to pull...

Page 30: ...r 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 of food grade...

Page 31: ...etween the gearcase cover and the drip pan gasket Torque the bolts to 110 inch pounds 2 Lower the auger into the evaporator barrel slightly turning it to match up with the drive end Do Not Drop Into t...

Page 32: ...ding the gear motor to the gear motor plate 3 Remove the gear motor from the ice maker To Inspect the gear motor A Remove the cap screws holding the gear motor case halves together and pry the two cas...

Page 33: ...es R 404A HP62 refrigerant and polyolester oil Do NOT use mineral oil in this refrigeration system R 404A is a Near Azeotrope so liquid charging is required When the system is serviced a special liqui...

Page 34: ...Control Note All testing is done with the electrical power on the master switch on and all reset switches reset 1 Unplug photo trans and LED connectors from the circuit board 2 Plug photo trans and LE...

Page 35: ...the Water position The No Water light on the board should go OFF If not replace the circuit board If the light does go off replace the water level sensor If the Bin Empty light is ON wait 10 20 second...

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