Scotsman FME1200R Service Manual Download Page 7 | Manualshive

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FOR THE INSTALLER: Location

TWO UNITS ON ONE
CONDENSER

REMOTE

CONDENSER

EXCESS

PRECHARGED

TUBING INSIDE

BUILDING

ICE MAKERS

SERVICE

ACCESS

SERVICE ACCESS

SIDE AND BACK

ROOF

CUTAWAY

WALL

CUTAWAY

NME950R & FME1200R

December 1995

Page 7

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Summary of Contents for FME1200R

Page 1: ...OR THE ELECTRICIAN Fan Relay Kit Page 10 FOR THE ELECTRICIAN Fan Relay Kit Phasing Do After Start Up Page 11 FOR THE INSTALLER Completed Installation Page 12 FOR THE INSTALLER Final Check List Page 13...

Page 2: ...Back View Liquid Line Connection Discharge Line Connection Remote Condenser Junction Box Electrical Inlet Water Inlet 3 8 Flare Drain 3 4 FPT 2 96 3 5 25 20 84 Allow 6 above machine for service The St...

Page 3: ...on one 230 volt 32 two circuit condenser ICE MAKER NAMEPLATE LOCATED ON BACK PANEL SERIAL PLATE LOCATED BEHIND FRONT PANEL Model Use with Basic Electrical RCE501 32 1 FME1200R OR 1 NME950R 208 230 60...

Page 4: ...top of the bin After the unit is placed on the bin line it up so it is even with the back side Secure the machine to the bin with the hardware provided with the machine Remove the front panel and rem...

Page 5: ...quick connect couplings one end has a schrader valve connection that end goes to the condenser Note The openings in the building ceiling or wall listed in the next step are the minimum sizes recommen...

Page 6: ...itting marked liquid line Final Connections 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 part...

Page 7: ...ER Location TWO UNITS ON ONE CONDENSER REMOTE CONDENSER EXCESS PRECHARGED TUBING INSIDE BUILDING ICE MAKERS SERVICE ACCESS SERVICE ACCESS SIDE AND BACK ROOF CUTAWAY WALL CUTAWAY NME950R FME1200R Decem...

Page 8: ...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 be a tr...

Page 9: ...mpressor 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 Th...

Page 10: ...lid earth ground wire to the ground screw 3 Route connecting wires from the first ice maker junction box marked condenser fan and connect it to the KCMR230 terminal strip marked NO 1 ICE MACHINE 4 Rou...

Page 11: ...ls 1 and 3 Compare the readings obtained to the ones in the following list C Test terminals 1 2 Full Voltage 208 230 Test terminals 1 3 No voltage Test terminals 2 3 Full Voltage Test terminals 2 4 No...

Page 12: ...ED 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...

Page 13: ...sig 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 i...

Page 14: ...lve 4 Turn the master switch on 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 lin...

Page 15: ...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 Sensor An electronic eye it senses the presence of ice in the...

Page 16: ...a built in time delay 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 p...

Page 17: ...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 consists of The liquid line solenoid closes lowering the suction...

Page 18: ...e water reservoir which it enters through the float valve The water them goes out the bottom of the reservoir tank to the bottom of the evaporator Reservoir overflow or evaporator condensation is rout...

Page 19: ...ors get less At the evaporator the refrigerant 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...

Page 20: ...enser to the receiver OPERATION Refrigeration PUMP DOWN During the pump down cycle usually initiated by the circuit board de energizing the liquid line valve the discharge gases flow through their nor...

Page 21: ...n has been added to the reservoir and the reservoir is nearly empty 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...

Page 22: ...hecked at least two times per year Check the breaker bearing by removing the ice chute cover unscrewing the ice sweep removing the water shed unscrewing the breaker cover left hand thread unscrewing t...

Page 23: ...water treatment For more information on removal and replacement of these parts see REMOVAL AND REPLACEMENT 1 To remove the auger remove the front and top panels 2 Push back bail clamp holding ice chut...

Page 24: ...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 pressur...

Page 25: ...board 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 c...

Page 26: ...in the machine b Check for low charge add some refrigerant if the unit begins to operate normal low side pressure being about 30 psig stop and look for a leak recover repair replace the drier evacuate...

Page 27: ...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 28: ...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 chute in front of and behind it are two...

Page 29: ...ough 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...

Page 30: ...left hand threads b Unscrew 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 ha...

Page 31: ...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 32: ...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 liquid li...

Page 33: ...is in place between 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 N...

Page 34: ...ect the bearings and gears If in doubt about the condition of a part replace it The oil quantity is 14 fluid ounces do not overfill Note The gears and bearings are available only as pressed together s...

Page 35: ...Move the bin full switch on the tester to Full The light on the tester should be ON If the light on the tester is not on the circuit board should be replaced b If the light on the tester IS on move t...

Page 36: ...osition The No Water light on the circuit board should go ON If not replace the circuit board b Move the water switch on the tester to the Water position The No Water light on the board should go OFF...

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