Operation and Service Manual MCD425A/W, R425A/W, MFD425A
Contents
1. O SNS NNNSNNNNNNNNNNN 2 NNSSNNNNNNNNNNN NSSNSSSSSNNNNNNNN SANA NSSSSSSNNNSNNNNNNNN NOAA NSSSSSSSNNNNNNNNN RS N IDO SN Description Reference co N N LO o E TD eT o C N oO 01068188 Duct including gasket Front pane 2 01068204 01068220 Panel right side 01068238 Spacer base 01068246 Panel left side and rear 1 piece 8 Panel top 01026152 01068253 01016948 01065375 00109728 9 Tube drain FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 28 QQ YYLYYY YY YY IIIT Z7777777777Z77777 TOTTTTTTTTTTTTTT TOTTTTTTTTTTTTTI YYYYYYYYYYYY YY YU III Z777777777777777 y Z777777777777777 Z777777777777777 Z777777777777777 WN WINN Water cooled skins assembly MCD425W_S R425W Description Reference cO LO cO O co LO LO E ojo J o Ol 2 2 o amp S olo S lt EJE LL Ww 00109728 Panel front 01068261 Fitting drain 3 01068220 012. EVAPORATOR DRAIN PAN SOU WASTE WATER DRAIN 3 4 FPT Fig 2 Water level diagram a 1 COMMON 2 HIGH 3 ALARM LOW 4 LOW L OPERATING RANGE E y 10 MCD425A W R425A W MFD425A W P425A W Ice Machines FOLLETT Electrical system IN ATTENTION To prevent circuit breaker overload wait 15 minutes before restarting this unit This allows the compressor to equalize and the evaporator to thaw Normal control board operation The PC board indicator lights provide all the information necessary to determine the machine s status Green indicator lights generally represent go or normal operation Yellow indicators represent normal off conditions Red indicators generally represent alarm conditions some of which will lock the machine off A flashing green light labeled POWER indicates power to the machine All other normal operation status indicators are covered as follows Ice machine disposition Operating conditions O on Ice machine is making ice l Legend O OFF ON or OFF FLASHING Normal running SLEEP CYCLE MAKING ICE DRAIN CLOG O HIPRESS HIAMPS SERVICE MAINT CLEAN LOW WATER O TIME DELAY LOW BIN POWER ON achine is not making ice 2 Normal time delay When the bin fills with ice the LOW BIN light g
3. Ibs 90 400 385 371 356 341 326 Ibs 32 181 175 168 161 155 148 ko 21 188 vs 161 147 194 ro Cao 405 375 345 315 285 bs Con ses ses sss sos 275 fi Paz 179 166 152 198 125 to Note Nominal values actual production may vary by 10 Inlet Water Temperature F C Inlet Water Temperature F C Electrical control svstem schematic L1 BLACK 26 WHITE 25 EIN GRN YEL 24 DISP BLACK 23 BLACK 23 BLACK 51 1 BIN P2 CONTACT 0 Nin ion DDD O O p SEE Z o US UE O POWER NE x m BLACK 401 T L H 8 9 LOW BIN O MAKING ICE B oy HIPRS O SLEEP CYCLE s Piaf Ds zO O TIME DELAY 06 5 O LOW WATER z or O r Os MODEESELECT O MAINTENANCE 0 P6 Os O SERVICE 8 D FAT m O HI AMPS ow O oi h O HI PRESSURE p J e 03 PROGRAM i O DRAIN CLOG EOS arsi P10 O RESET 0 CL
4. board will shut down the ice machine should an over torque condition occur It is very important that you familiarize yourself with the operational sequences detailed in this manual before attempting to service the ice machine POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 9 Water system The water level in the evaporator is controlled by a fill solenoid Fig 1 and level detecting sensors Water sensing rods Fig 2 extend down into the reservoir at the end of the evaporator assembly The system works via electrical conductivity as follows One of the longest probes is a common When water is between any of the other probes and the common the PC board will sense the activation During normal operation the water level rises and falls between the Normal High and Normal Low sensors As water is consumed to make ice the level will fall until the Normal Low sensor is exposed triggering the water feed solenoid on Water will fill until the Normal High sensor is activated Note The potable water dissolved solids content must be greater than 10 ppm for the water control system to function properly If using reverse osmosis water filtration system ensure T D S level is greater than 10 ppm Fig 1 Water system diagram CLEANING CUP RESERVOIR FILL SOLENOID Cr E a WATER RESERVOIR WATER SUPPLY 3 8 FPT 45 90 F 7 32 C 10 70 PSI 69 483 KPA
5. MCD425A W S MFD425A W T R425A W Front view top mount Front view air cooled 12 0 cm 2 31 5 7 cm l ee Side view top mount 2 5 6 4 cm lt 4 18 88 48 cm sC E Front view water cooled 21 29 54 1 cm CD m Fe CL Y I4 22 49 57 1 cm D E 4 81 3 A 12 0 cm 5 25 Back view top mount 2 31 13 3 cm Le 5 7 cm 22 69 57 6 cm ja 8 25 20 9 cm 4 22 46 57 1 cm q 10 62 27 0 cm 18 88 48 cm 71922 88 7 cm Side view air cooled and water cooled 11 08 28 0 cm lt F 22 75 57 8 cm lt 20 75 52 7 cm 8 08 20 4 cm n Tt n 5 03 12 8 cm AR i 2 34 6 cm 9 l 2 32 1700 5 9 cm 43 2 cm 4 4 40 11 2 cm E if Cee i V RIDE model air cooled units only A 3 4 MPT drain D 3 8 FPT condenser inlet B 3 8 FPT water inlet E 3 8 FPT condenser drain C Electrical cord F Bin signal connection DO NOT APPLY VOLTAGE 6 MCD425A W R425A W MFD425A W P425A W Ice Machines NKoszETF Operation Cleaning descaling and sanitizing Follett ice
6. Remove condensate shield Remove 4 Allen head machine screws holding mounting base to gearbox Evaporator reassembly 1 2 3 Clean gearmotor boss output shaft and shaft well Install drain pan and evaporator mounting base Fill gear motor shaft well with food grade grease Fig 4 Install condensate shield and seat against gear motor boss Install bearing O ring in groove in evaporator mounting base Fig 3 FLAKER COMPONENTS COMPRESSION 2 LOOP 00124115 AUGER 00124123 Evaporator drain pan and mounting base not shown for clarity FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 25 6 Lower bottom bearing assembly into evaporator mounting base 7 While maintaining firm downward pressure on bottom bearing assembly tighten hex head bolt with a 5 16 wrench 8 Position evaporator over lower bearing assembly and align grooves with pins in bearing assembly 9 Install vee band clamp and nut to 70 in Ib Fig 5 Note Clamp must be oriented as shown in order for the insulation to be placed properly 10 Place auger in center of evaporator and rotate to mate with drive pin 11 Install ice compression loop orienting loop 12 Install upper bearing and seal assembly rotating bearing to slip pin into auger slot 13 Install upper vee band clamp and nut to 70 1 10 14 Install evaporator insulation 15 Install compress
7. WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG CLEANER FULL Bin T Stat Clean Switch Drain Clog Sensor B 2 Water Sensors Diagnostic Stages High gearmotor amps Stage 1 The HI AMPS error and TIME DELAY LEDs are on indicating that the control board has sensed an over torque condition at the P4 terminal more than 3 amps from the gearmotor and shut the ice machine down strike one The HI AMPS and TIME DELAY LEDs will remain on for 60 minutes after an over torque condition has occurred The ice machine will remain off as long as these two LEDs are on After the 60 minute time delay these LED lights turn off and the control board will try to go through a normal start up sequence High Pressure Switch Compressor WHITE Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG Oooo cooocoooo0 CLEANER FULL E O O in To Clean Switch Drain Clog Sensor Bin stat e Water Sensors 20 High gearmotor amps Stage 2 If the restart is successful the board will continue to monitor the current draw on P4 for 60 minutes looking for a second high amps above 3A occurrence If the ice machine runs without problems for 60 minutes and no additional torque errors occur the ice machine will continue normal operation High Pressure Switch Compressor Start Relay Compressor Ele
8. be illuminated After the time delay and if the pressure has fallen back below the reset point of 295 psi the machine will restart and the TIME DELAY and HIGH PRESSURE will clear HI AMPS The PC board monitors the amperage of the auger motor Should the gear motor experience current draw above the allowable 3A limit the machine will shut down and the TIME DELAY and HI AMP will be illuminated After the time delay the machine will restart and the TIME DELAY and HI AMP will clear Hard error HI AMPS If a second hi amp error occurs within 1 hour of the initial hi amp error the ice machine will shut off and the reset on the board must be pressed to clear the error If a second hi amp has occurred the HI AMP LED only will be illuminated DRAIN CLOG The drain clog sensor located in the evaporator drain pan will detect the presence of water just below the top edge of the pan If water does not properly flow out of the internal or external drain lines it will backup into the drain pan especially during a self flushing purge cycle Pressing the reset button will restart the ice machine 12 MCD425A W R425A W MFD425A W P425A W Ice Machines POLLEY Technical specifications all models Refrigeration system diagram high side service port condenser gt filter dryer high pressure switch low side service port compressor high pressure vapor thermostatic expansion Z Ni Ee
9. low D within 10 seconds the LOW WATER and TIME DELAY LEDs will come on and the machine will shut down for the one hour time delay period After the time delay the fill valve will re energize and wait for continuity between the common probe and normal high before restarting LOW WATER LED will remain ON until the water level is satisfied High Pressure Switch Compressor WHITE Electrical Box POWER O Low BIN O MAKING ICE O SLEEP CYCLE dO TIME DELAY Low water O MAINTENANCE O SERVICE O naves O HIPRESSURE O DRAIN CLOG O CLEANER FULL Bin T Stat Drain Clog Sensor Me Water Sensors 22 MCD425A W R425A W MFD425A W P425A W Ice Machines FOLLETT High refrigerant pressure Should the refrigeration pressure rise above 425 psi the high pressure switch contacts will open The board sees the open circuit and the HIGH PRESSURE and TIME DELAY LEDs will come on the machine shuts down After the one hour time delay the machine will attempt to restart If the pressure has fallen below the reset point of 295 psi and the board see the contacts closed the machine will resume normal operation If the contacts are still open after the restart the board will again go into HIGH PRESSURE and TIME DELAY cycling until contact closure is seen High Pressure Switch RED Start Relay Compressor WHITE Electrical Box POWER LOW BIN MAKING
10. machines and dispensers and their associated cleaning and sanitizing procedures are designed for use with potable water sources The presence or suspected presence of infectious agents may call for additional measures including the replacement of components and more comprehensive disinfection measures Follett recommends that these cleaning and sanitizing procedures be reviewed with the appropriate infectious agent subject matter experts to assure complete remediation Periodic cleaning descaling and sanitizing of Follett s ice machine system is required to ensure peak performance and delivery of clean sanitary ice The recommended cleaning procedures that follow should be performed at least as frequently as recommended and more often if environmental conditions dictate Cleaning of the condenser can usually be performed by facility personnel Cleaning descaling and sanitizing of the ice machine system should be performed by your facility s trained maintenance staff or a Follett authorized service agent Regardless of who performs the cleaning it is the operator s responsibility to see that this cleaning is performed according to the schedule below Service problems resulting from lack of preventive maintenance will not be covered under the Follett warranty Drain Pan Drp Pan Condenser monthly air cooled only Ta Ice machine must be sanitized prior to start up Weekly The exterior may be cleaned with a stainless cleaner such as 3
11. oz 198 g one 7 oz packet of Follett SafeCLEAN ice machine cleaner descaler P N 00132001 Sanitizing Solution Mix a sanitizing solution of 1 gal 3 8 L 100 F 38 C water and 1 6 oz 47 ml Nu Calgon IMS II Sanitizer P N 00979674 Cleaning descaling procedure Note Check drains and drain cup to ensure they are open and flowing freely 1 If ice machine was running recently ensure that the evaporator is completely free of ice before proceeding If there is ice in the evaporator complete steps 2 7 using only hot water to remove the ice then begin Cleaning Descaling Procedure again 2 Remove front or top cover Disconnect bin signal cable from ice machine electrical box 4 Press CLEAN switch The MAINTENANCE light will turn on and the machine will drain Wait for the LOW WATER light to turn on 5 Remove lid from cleaning cup and fill about 1 quart until cleaning solution completely fills the reservoir Place lid back on cup 6 CLEANER FULL light will turn on and machine will start cleaning cycle then rinse three times this process takes approximately 15 minutes 7 When machine is finished cleaning the MAINTENANCE light will turn off Sanitizing Procedure 8 Press CLEAN switch The MAINTENANCE light and LOW WATER light will turn on 9 Fill cleaning cup with sanitizing solution until completely fills the reservoir Place lid back on cup Save remainder of sanitizing solution 10 CLEANER FULL light will turn on and machine w
12. 068238 01016948 Spacer base Panel right side ig Panel left side and rear 1 piece 01068246 p Bs LIE 01068253 29 MCD425A W R425A W MFD425A W P425A W Ice Machines BOLLETT Louvered docking station MCD425A W T Description Louver front Reference LO T e o eo 01068279 01055185 01068287 Cover front Tube drain Lovered docking station FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 30 Electrical components Reference _ Description Part Not shown Bin thermostat MCD425A WBT MCD425A WHT MFD425A WBT and 500514 MFD425A WHT only Board stand off control 8 required 00903005 Relay power to contact closure 01020734 Jumper bin signal 01069095 POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 31 Evaporator FOOD SERVICE 4 FLAKER COMPONENTS ge o HEALTHCARE i y C BEP ut a Sy m 20 FLAKER 32 MCD425A W R425A W MFD425A W P425A W Ice Machines UE Evaporator Reference Description Part Coupling vee band includes nut 502735 2 Bearing assembly top 502736 Loop ice compression beveled see below for Flaker specific components 502110 Auger see below for Flaker specific components 502737 01064658 500496 Bearing assembly bottom includes O rings and condensate shield 5027
13. 15 Normal operation Stage 2 When continuity is seen between B and C the water valve de energizes the AUGER output P4 comes on along with the MAKING ICE LED The auger gearmotor s start windings are energized through a current style start relay that is pulled in by the initial high current draw of the gearmotor High Pressure Switch RED Start Relay Compressor WHITE Electrical Box IN EN P15 BLACK n P6 BROWN P20 BLACK POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HIAMPS HI PRESSURE DRAIN CLOG 000000000000 CLEANER FULL E O O Bin T Stat Clean Switch Drain Clog Sensor D Water Sensors Normal operation Stage 3 After the initial high current draw drops off the gearmotor start relay contacts open dropping out the start winding The condenser fan output P3 comes on 0 5 seconds later High Pressure Switch Start Relay Compressor Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE P19 O P3 O WATER LEVELS HIAMPS HI PRESSURE DRAIN CLOG CLEANER FULL 5 0000000006006 Bin T Stat Clean Switch Drain Clog Sensor a 2 Water Sensors 16 MCD425A W R425A W MFD425A W P425A W Ice Machines FOLLETT Normal operation Stage 4 One second 1 s after the fan comes on the COMPRESS
14. 2730 10 01067693 11 01068139 Not shown 01027572 1 01065259 1 00195933 14 00998765 Not shown 01065275 15 502732 16 Ty rap 2 required 204584 17 01051192 18 01067644 1 00991216 20 01065283 Not shown 01054576 Not shown 01055185 Not shown 01016948 21 01003532 22 23 POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 37 Water treatment accessories for Symphony ice and water dispensers References Dessipim Te Standard capacity filter system Not shown Follett QC4 FL4S water filter system includes FL4S primary cartridge and head coarse 00130229 pre filter and head pressure gauge flushing valve assembled and installed on mounting bracket one per ice machine High capacity filter system Carbonless high capacity filter system Not shown Carbonless high capacity water filter system one per ice machine Horizon and Mae nr 01050442 stroPlus series ice machines Carbonless high capacity water filter cartridge primary single 01050426 01050434 0013021 1 00954305 Not shown Carbonless high capacity water filter cartridge primary carton of 6 Not shown Water pre filter cartridge pre filter single Not shown Other filtration Not shown Water pre filter cartridge pre filter carton of 12 00986059 00985127 00986034 00985085 00985077 00985119 00985101 Claris hardness removal filtration system Not shown Re
15. 38 501063 500744 1 Screw Allen 1 4 20 x 1 2 set of 4 501080 i 502733 12 502227 1 502730 Not shown 01067693 01064674 16 00181990 17 01027804 18 01027416 Not shown 501111 19 01007087 20 01049592 2 00142042 2 01012226 01067446 01064963 01033778 01040070 01049600 01049584 Flaker specific components Reference Description Part Loop compression notched 00124115 Auger with paddle 00124123 Compression nozzle flaker 01067453 FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 33 Air cooled ice machines FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 34 Air cooled ice machines Reference Description Partk 3 Reservoir mounting bracket alo 0540303 6 Evaporator see page 32 and 33 for complete breakdown 8 Drain pan evaporator ooo 9 Highpressurecutout 502732 Fitting reservoir plastic 1 4 stem x 1 4 push in POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 35 Water cooled ice machines KG EXA DIA gt SAY 7 28 FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 36 Water cooled ice machines Reference Description Patt Iso washer for water regulating valve 3 4 01068162 Not shown Tubing polypropylene reservoir supply sold by foot 502079 Not shown 00121699 Evaporator see page 32 and 33 for complete breakdown 01068121 502726 00181990 50
16. D goes out The compressor and gear motor outputs turn off the MAKING ICE LED goes out and the TIME DELAY LED comes on High Pressure Switch Compressor RED Start Relay Compressor Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG CLEANER FULL A Bin T Stat Clean Switch Drain Clog Sensor c Water Sensors Normal operation Stage 7 The fan motor continues for 10 minutes before shutting off The TIME DELAY LED remains on for 20 minutes The ice machine will not start while the TIME DELAY LED is on To restart the ice machine for troubleshooting purposes depress the reset button to clear the control board High Pressure Switch Compressor RED Start Relay Compressor WHITE Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG CLEANER FULL O in T Clean Switch Drain Clog Sensor Bin T Stat Water Sensors 18 MCD425A W R425A W MFD425A W P425A Ice Machines FOLLETT Normal operation Stage 8 When the dwell time of 20 minutes has expired the TIME DELAY LED goes off If 5 seconds of ice has been dispensed and the SLEEP CYCLE LED is off the ice machine will go through the normal start up sequence when the bin level control signals the control board for ice Hi
17. EANER FULL 0 reer SERJAL COMM o Lo EM D d IT 5 PIZ BIN PH P13 P8 Rs485 o O male E ONU le fi O GRN 17 pi2 Bl P11_CLEAN SAFE MAINE pas CLEAN Y H ala M 2 1 HLPRS E 5 Pu s 3 2243 Hi dH Y Y BLUE al Ol ec reves y L Sha ao 1 A R START BISON GEARMOTOR ES GREEN 57 DRAIN VALVE BLACK 58 05 gurl FF ace FAD GN 3 3 BLACK 59 U NA RE LLL ric CES r X Y3HY 3 pe o s J DRAIN CLOG gl el al COMPRESSOR SENSOR VIOLET E Y Y FAN Y Y A B C D E E RESERVOIR WATER SENSOR RED i COMPRESSOR ui ELECTRICAL M ORANGE HIGH BOX PRESS BLACK 71 1 RUN 14 MCD425A W R425A W MFD425A W P425A W Ice Machines FOMLETT Electrical control system operation The P425A W MCD425A W_S and R425A W wiring diagrams which follow illustrate the circuitry of Follett ice machines used with ice dispensers Both normal operation of the ice machine Stages 1 6 and non normal diagnostic sequences showing torque out Stages 7 10 for use in troubleshooting ice machine problems are shown Follett ice machines used on top of an ice storage bin have a slightly different circuitry The operational and diagnostic stages for these ice machines will be otherwise the same as Stages 1 10 that follow Circuitry notes When the ice machine is used with a dispenser it receives power from the main power suppl
18. ES EX a le pe beoe deg su Q Sua gs 11 Technical specifications all models 2 13 Electrical control system schematic 14 Electrical control system operation 44444 hh 15 Refrigeration system all models 2 22 24 Replacement parts ele em eR danse essence eue das mes hx RR RUE RUN e Ra ee 27 Replacement ice machine ordering matrix 27 Air cooled skins assembly MCD425A S R425A 4 4 4 28 Water cooled skins assembly MCD425W S R425W 29 Louvered docking station MCD425A W_T 4 30 Electrical Components 4 2s LAW ULL Ee dre qu eee usu s aa sQ DES e rice EE Ra dent a ae 2 31 EVaporalor a xe ees RE ERE aber REG ens AU EA UR dida date Ee a ade iau Ria e s aS nea 32 Aircooled ic machines issue ese e DLE CRW ee GR Ee Ea d Re eee ged oe Swen 34 Water cooled ce machines 3 sos wie tek etr eR RR exea te scd Em dre e detur s GAS bed e we 36 POLE MCD425A W R425A W MFD425A W P425A W Ice Machines Welcome to Follett Follett equipment enjoys a well deserved reputation for excellent performance long t
19. ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG CLEANER FULL O Bin T Stat Clean Switch Drain Clog Sensor 4 Water Sensors Drain clog If continuity is seen between the two drain clog sensor probes the DRAIN CLOG LED will come on and the machine will shut down The machine will not restart unless the manual reset button is depressed while power is on RED Water Sensors High Pressure Switch Start Relay Compressor WHITE Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG CLEANER FULL Bin T Stat Drain Clog Sensor e FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 23 Refrigeration system all models All service on refrigeration systems must be performed in accordance with all federal state and local laws It is the responsibility of the technician to ensure that these requirements are met Recharging ice machine to other than factory specifications will void the warranty R404A ice machine charge specifications Model Charge Refrigerant type MCD425A MFD425A R425A P425A air cooled 15 oz 425 g R404A MCD425W MFD425W R425W P425W water cooled 9 oz 255 g R404A Refrigerant replacement requirements 1 Non contaminated refrigerant removed from any Follett refrigeration system can be recycled and returned to the sam
20. M Stainless Steel Cleaner amp Polish or equivalent 8Mis a trademark of 3M Company Monthly Condenser air cooled ice machine only 1 Use a vacuum cleaner or stiff brush to carefully clean condenser coils of lint and debris to ensure optimal performance 2 When reinstalling counter panels in front of RIDE model ice machines be sure that ventilation louvers line up with condenser air duct Semi Annually more often if conditions dictate A cleaning descaling and sanitizing procedure should always include both the ice machine and bin dispenser cemaking system can be cleaned descaled in place Cleaning amp Sanitizing Tool Checklist 2 1 5 Gallon or larger plastic buckets 2 clean cloths Sanitary gloves Safety Glasses 2 Sani Sponge P N 00131524 single sponge 1 Packet of SafeCLEAN P N 00132001 24 packets 1 6 fl oz of Nu Calgon IMS II Sanitizer P N 00979674 16 fl oz bottle POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 7 Wear rubber gloves and safety goggles or face shield when handling cleaner or sanitizer mixtures Use only Follett approved cleaners It is a violation of Federal law to use Solution A or Solution B in a manner inconsistent with their labeling Do not use solvents abrasive cleaners metal scrapers or sharp objects to clean any part of the dispenser Cleaning Solution Mix cleaning solution of 1 gal 3 8 L 100 F 38 C water and 7
21. MCD425A W R425A W MFD425A W P425A W Ice Machines Operation and Service Manual MCD425A W T MCD425A W S MFD425A W_T R425A W lt LO A y o Following installation please forward this manual to the appropriate operations person 01033646R00 801 Church Lane Easton PA 18040 USA Toll free 877 612 5086 1 610 252 7301 www follettice com FOLLETT Innovative solutions inspired by ice 2 MCD425A W R425A W MFD425A W P425A Ice Machines FOLLETT Contents Welcome to FOIE LETT 4 Before you begin e e reef wi IRR ib 4 lebte Ere 5 Electrical Poe 5 5 huge PP 5 Water usage water cooled condenser only 5 Dimensions and clearances iss aati ade Res x RA CERE ERRARE aed n Ru eR aa ew a ACA ERR RC 6 lr mE m 7 Cleaning descaling and sanitizing 0 m mu 7 Weekly essi ebbe er da dp pa VE RE PIRE ES we oe Bs dd 7 Monthly sss SESS E SRS E E FEMI ILLES SDE TSR 7 Semi Annually more often if conditions dictate 7 ldem PL 9 Ice machine Operation all models 9 Wale SyYSIOM aid OO DIS Uo a EORR E KEEA EIAN REREN 10 Electrical Systems us eai AGEN DE CERE
22. OR output comes on The compressor circuit uses both run and start capacitors along with a potential start relay The start capacitor in energized through the normally closed contacts of the start relay Compressor Start Relay Compressor Electrical Box 190 P3 O WATER LEVELS 5 000000000688 O Bin T Stat Drain Clog Sensor n E Water Sensors High Pressure Switch POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG CLEANER FULL O Clean Switch Normal operation Stage 5 As the compressor comes up to normal running speed its start winding generates a voltage potential across the relay s coil This energizes the coil to open the contact and drop out the start capacitor The ice machine is now in a normal ice making mode The ice machine will produce ice until the bin level control in the ice dispenser is satisfied Compressor Start Relay Compressor Electrical Box E 0000000000066 O Bin T Stat Drain Clog Sensor m a Water Sensors sH O Clean Switch High Pressure Switch POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HIAMPS HI PRESSURE DRAIN CLOG CLEANER FULL FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 17 Normal operation Stage 6 Once the bin thermostat control opens the LOW BIN LE
23. RA high l low pressure pressure pressure liquid liquid vapor valve Refrigeration pressure data Water regulating valve is factory set at 300 10 PSIG head pressure Readings within 10 of table values should be considered normal Compressor data Locked rotor amps 58 8A Compressor current draw Air cooled Ambient air temperature High side pressure psi Low side pressure psi Water cooled Water temperature at float Water cooled Ice Machine Refrigeration Pressure Discharge Pressure Suction Pressure 50 F 10 C 60 F 15 6 C 70 F 21 1 C 80 F 26 7 C s Condenser inlet water temperature F C SOL Frc 50 10 70 21 90 32 EX 50 10 280 27 285 29 290 31 psi E 70 21 280 27 285 29 290 31 psi g E 90 32 280 27 285 29 290 31 psi Gearmotor data Gearmotor current Locked rotor amps 2 25A nominal 14A FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 13 Air Cooled ice machine capacity 24hrs Water Cooled ice machine capacity 24hrs Ambient Air Temperature F C Condenser Water Temperature F C 70 286 465 443 422 400 ses 1 10 220 21 201 191 181 176 19 70 464 445 425 406306 967 bs 16 210 202 193 4 175 166 19 16 ro e ss soo os o ve IEA 70 448 425 408 390 372 358 lbs 21 201 193 185 177 169 162 kg 80 422 406 389 373 356 340
24. achine it is important to analyze the entire system operation to determine which system is not functioning properly then pinpoint the component within that system that is malfunctioning Determine what corrective action must be taken before making any adjustments or replacing any components The icemaking process The Maestro Plus ice machine uses a stainless steel jacketed evaporator and operates on a continuous freezing cycle Water is supplied to the evaporator from the water reservoir where the water level is controlled by a float valve This valve also shuts off the water supply when the ice machine is not running When the ice machine is running a layer of ice forms on the interior surface of the evaporator This ice is continuously removed by a slowly rotating 12 RPM auger The auger carries the ice upward into the cavity formed by the top bearing housing and the compression loop where it is compressed to remove excess water When the ice reaches the desired hardness it rotates within the cavity and is forced through a discharge port and compression nozzle and into the ice transport tube The discharge tube and compression nozzle are slightly restricted to further compress the ice and produce the desired hardness ice transport tube compression nozzle A solid state control board located in the electrical box of the ice machine controls the normal operation of the ice machine and monitors gearmotor torque This control
25. ce without draining the evaporator Error faults The Maestro Plus PC board monitors various operating parameters including high pressure auger gearmotor amperage limits clogged drain and low water alarm conditions There are two types of errors namely hard or soft A hard error is one that shuts the machine off and will not allow restart until the reset button is pressed Even cycling power will not reset a hard error A soft error can either be automatically reset should the condition rectify or if power is cycled Should an error occur consult the troubleshooting guide in this manual or a Follett service technician Soft errors Note For all soft errors the ice machine will remain off for 1 hour LO WATER During operation the water level cycles between the normal low and normal high sensors Should the water be shut off to a running machine a soft error will occur The error sequence is as follows During operation the water level falls to the normal low sensor and when it does the water feed solenoid is energized If water is not detected at the normal low sensor within 10 seconds a soft error will occur The machine will shut down and TIME DELAY and LOW WATER LEDS will be lit After time delay the solenoid will energize and remain energized until the water level is sufficient for restart HI PRESSURE Should the refrigeration pressure rise above 425 psi the machine will shut down and the TIME DELAY and HIGH PRESSURE will
26. ctrical Box UTN x SATAN e P15 a a u O Low BIN BLACK ELT 0 MAKING ICE El mers O slee cyce B TIME DELAY YELLOW 1 O Low warER O MAINTENANCE BROWN O service BLACK O Hiawps O HIPRESSURE O DRAIN CLOG O CLEANER FULL O Bin T Stat Clean Switch Drain Clog Sensor 5 Water Sensors High gearmotor amps Stage 3 If a second occurrence happens during the 60 minute monitoring period the HI AMPS LED will come on again and shut the machine down strike two The HI AMPS LED wihout the TIME DELAY LED will indicate to the technician that two consecutive over torque situations have occurred The ice machine is shut down at this time and locked out It will not restart unless the manual reset button is depressed while power is on High Pressure Switch RED Start Relay Compressor WHITE Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG OOOOQOOoOOoOOoOOoOoo 9 CLEANER FULL Bin T Stat p Clean Switch Drain Clog Sensor Water Sensors KOott ETF MCD425A W R425A W MFD425A W P425A W Ice Machines 21 Loss of water During operation the water level cycles between the normal low D and normal high C water probes the fill valve P21 cycling on and off If continuity is not detected between the common probe B and normal
27. e system after completing repairs Recycled refrigerant must be stored in a clean approved storage container If additional refrigerant is required virgin or reclaimed refrigerant that meets ARI standard 700 88 must be used 2 Inthe event of system contamination for example a compressor burn out refrigerant leak presence of non condensibles or moisture the system must be repaired evacuated and recharged using virgin or reclaimed refrigerant that meets ARI standard 700 88 3 Follett Corporation does not approve of recovered refrigerants Improper refrigeration servicing procedures will void the factory warranty Evacuation Evacuate the system to a level of 500 microns When the 500 micron level is reached close valves and both manifold and shut down the vacuum pump Allow the system to sit for approximately 20 minutes During this period the system pressure should not rise If the system pressure rises and stabilizes there is moisture in the system and further evacuation is needed If the pressure continues to rise check the system for leaks Ice capacity test Ice machine production capacity can only be determined by weighing ice produced in a specific time period Replace all panels on ice machine 1 Run ice machine for at least 15 minutes Weigh and record weight of container used to catch ice Catch ice for 15 or 20 minutes Weigh harvested ice and record total weight Subtract weight of container from total weight Convert fract
28. erm reliability and outstanding after the sale support To ensure that this equipment delivers that same degree of service we ask that you review the installation portion of this manual before beginning to install the unit Our instructions are designed to help you achieve a trouble free installation Should you have any questions or require technical help at any time please call our technical service group at 877 612 5086 or 1 610 252 7301 Note To expedite assistance all correspondence or communication MUST include the model number serial number and complete and detailed explanation of the problem Before you begin After uncrating and removing all packing material inspect the equipment for concealed shipping damage If damage is found notify the shipper immediately and contact Follett Corporation so that we can help in the filing of a claim if necessary Check your paperwork to determine which model you have Follett model numbers are designed to provide information about the type and capacity of Follett equipment Following is an explanation of the different model numbers in the 425 series MCD425ABT r YC VU Configuration x S RIDE Application T top mount V Vision Condenser type A B Bin air cooled H Harmony ce machine capacity and refrigerant V _ water cooled 400 425 Ibs 193 kg day R404A Voltage D 115V 60Hz Ice machine series Nugget ice machine MCD RIDE model installa
29. gh Pressure Switch POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW WATER MAINTENANCE SERVICE HI AMPS HI PRESSURE DRAIN CLOG 000000000000 CLEANER FULL O Bin T Stat Clean Switch Quiet Night Sleep cycle The board monitors ice dispensing through a line voltage input to P15 If the ice dispense has not be initiated for more than 5 seconds during the 20 minute time delay the SLEEP CYCLE LED comes on The machine will stay off for 12 hours unless 5 seconds of dispensing is seen After 12 hours the SLEEP CYCLE LED goes out and the ice making will resume if the bin thermostat is closed The sleep cycle dispense duration is adjustable using the DIP switches on the control board BOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 19 Self flushing At the completion of the 20 minute time delay the machine checks for a cumulative one hour of ice making time since the last off cycle flush If the cumulative ice making time exceeds one hour the machine will energize the drain valve P19 for 60 seconds to drain the evaporator It will then refill with water flush again refill and begin making ice if the LOW BIN LED is on If the ice making time is less than 1 hour the machine will start and begin making ice without draining the evaporator High Pressure Switch RED Start Relay Compressor WHITE Electrical Box POWER LOW BIN MAKING ICE SLEEP CYCLE TIME DELAY LOW
30. ill start sanitizing cycle then rinse three times this process takes approximately 15 minutes 11 When machine is finished rinsing the MAINTENANCE light will turn off Remove top bearing insulation and nozzle insulation then loosen phillips head screw on nozzle connected to evaporator Remove nozzle from evaporator side only leave other side of nozzle connected to transport tube 12 Place one Sani Sponge in remaining sanitizing solution 13 Insert the sponge soaked in sanitizing solution into nozzle then insert a dry sponge into the nozzle 14 Replace nozzle onto evaporator and tighten screw Ensure drain is connected to reservoir and vent tubes are connected to evaporator drain pan 15 Reconnect bin signal cable Wait for ice to push sponges through transport tube 16 Collect sponges from ice storage bin 17 Replace front or top cover 18 After 10 minutes dispense all ice and discard 19 Clean descale and sanitize dispenser bin 8 MCD425A W R425A W MFD425A W P425A W Ice Machines POLLEN Service Ice machine Operation all models Follett s ice machine consists of four distinct functional systems Harvesting system Refrigeration system Water system Electrical control system These four systems work together to accomplish the production and harvesting of ice A problem in any one of these systems will result in improper operation of the entire ice production cycle When troubleshooting the ice m
31. ion nozzle and tubing 16 Secure ice transport tube with clamp Fig 6 1 Note Clamp must be oriented as shown in order for the insulation to be placed properly 17 Install compression nozzle insulation Fig 6 2 18 Install vent and drain tube Fig 6 3 19 Install top bearing insulation Fig 6 4 Gearmotor replacement 1 Disassemble evaporator 2 Disconnect the wire connectors 3 Remove 4 screws holding gear motor mounting plate to base of ice machine and lift gearbox and motor clear of ice machine 4 Remove machine screws holding mounting plate to motor 5 Install new motor in reverse order Fig 6 26 MCD425A W R425A W MFD425A W P425A W Ice Machines KOotz r Replacement parts Replacement ice machine ordering matrix ZEN ZEN ZEN EN ZEN ZEN 11004254 11004254 ZEN ZEN ZEN New bin top required Ice machine cleaner descaler 00132001 SafeCLEAN environmentally friendly cleaner carton of 24 x 7 oz packets Ice machine sanitizer 00979674 Nu Calgon IMS II Sanitizer 16 oz bottle Miscellaneous ats Description OOOO 501860 Condensate pump 502775 Oil gearmotor 1 pint 501111 Grease Mobile FM 222 14 oz tube 500377 Clamp ice tube 501425 POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 27 NNNSNSNNSNNSNNNNNNNN DY NSSSSNNSNNNSNNNNNN Air cooled skins assembly MCD425A S R425A CANAAN
32. ions of pounds to decimal equivalents ex 6 Ib 8 oz 6 5 Ib Calculate production using following formula MOORON 1440 min x wt of ice produced E Production capacity 24 hr period Total test time in minutes 8 Calculated amount per 24 hours should be checked against rated capacity for same ambient and water temperatures in Ice Production Tables 24 MCD425A W R425A W MFD425A W P425A W Ice Machines FOMLETT Evaporator disassembly Note The upper bearing lower bearing and auger assemblies must be replaced as assemblies The bottom and top bearing assemblies cannot be field assembled to factory specifications PNA oN 11 12 13 14 15 16 Press CLEAN switch Wait for LOW WATER light to illuminate Turn OFF power Remove top bearing insulation and compression nozzle insulation Disconnect vent and drain tube from nozzle Disconnect compression nozzle from evaporator Disconnect evaporator water feed line Remove nut and upper v band coupling from top of evaporator Lift top bearing assembly straight up with a slight rotating motion and remove Remove ice compression loop located at top of auger Lift auger straight up and out of evaporator Remove nut and lower vee band coupling from bottom of evaporator Lift evaporator to clear bottom bearing assembly Loosen hex head bolt in side of mounting base with 5 16 wrench and lift lower bearing assembly
33. n with a 1 2 min is recommended Water shut off recommended within 10 feet 3 m drain to be hard piped and insulated Separate drains for ice machine and condenser To prevent back flow do NOT connect drains Follett recommends a Follett water filter system be installed in the ice machine inlet water line standard capacity 00130229 high capacity 00978957 carbonless high capacity 01050442 Ambient 100 F 38 C max 50 F 10 C min best performance below 80 F 27 C 90 F 32 C max 45 F 10 C min best performance below 70 F 21 C 70 psi max 482 kPA 10 psi min 68 kPA Condenser water 90 F 32 2 C max 45 F 72 C min temperature Condenser water 125 psi 862 kPA max 10 psi 68 kPA min pressure Ambient air temperature is measured at the air cooled condenser coil inlet Ambient water temperature is measured in the ice machine reservoir Water usage water cooled condenser only 0 25 gpm 50 F 10 C 0 5 gom O 70 F 21 C 1 25 gpm 90 F 32 C POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 5 Dimensions and clearances Entire front of ice machine must be clear of obstructions connections to allow removal 12 30 5 cm clearance above ice machine for service 6 15 3 cm minimum clearance between exhaust side of ice machine and any adjacent equipment MCD425A amp R425A 18 45 7 cm minimum 10 ft 3 m maximum clearance between discharge and air intake grilles MCD425A W T
34. oes out momentarily and the refrigeration and auger drive systems immediately shut down Note The fan motor will continue to run for 10 minutes to cool condenser The TIME DELAY light comes on initiating the time delay period When the time delay expires the machine will restart provided that the LOW BIN light is on SLEEP CYCLE MAKING ICE LOW BIN 5 u mx u z lt ul d o m a 5 L cc us z lt u d o DRAIN CLOG O HI PRESS O HI AMPS O SERVICE MAINT CLEAN O LOW WATER TIME DELAY POWER ON DIP Switch Settings m OFF POSITION m ON POSITION MCD425A W_T MCD425A W_S R425A W 425A W installed in Symphony Plus 25 50 110 Cl CT or FB OFF ON OFF ON Sleep cycle vicia Not used Sleep cycle P 2 20 min time delay Flush disabled Maint timer ON Replacement P425A W installed in Symphony dispenser Sleep cycle cara Not used Sleep cycle ue rico 20 min time delay Flush disabled Maint timer ON E e A a o E oo OFF ON E N 2 a o N 0 Sleep cycle p Not used bus cycle dispense duration 60 min time delay Flush enabled Maint timer OFF Sleep cycle p Not used bos cycle dispense duration 60 min time delay Flush enabled Maint timer OFF
35. p cycle disabled Not used Sleep dispense duration 20 min time delay Flush disabled Maint timer ON OFF ON E 8 19 S C Sleep cycle dispense duration Sleep cycle jee Not used pes cycle dispense duration 60 min time delay Flush enabled Maint timer OFF Flush can be enabled on Symphony CT and FB models Flush should be disabled on Symphony CI units due to risk of internal leak if drain line is blocked All Symphony Plus models should be set to Flush enabled FOLLETT MCD425A W R425A W MFD425A W P425A W Ice Machines 11 Relay triac output indication Each relay on the board has an indicator light associated with its output For example when the relay for the water feed solenoid is energized the adjacent indicator light glows green Flushing logic Off cycle At the completion of off cycle time delay the machine checks for a cumulative one 1 hour of ice making time since the last off cycle flush If the cumulative ice making time exceeds one 1 hour the machine will open the drain valve for 60 seconds to drain the evaporator in its entirety It will then refill with water flush again and refill and begin making ice If the ice making time is less than 1 hour the machine will start and begin making i
36. placement filter for Claris system Not shown Reverse osmosis system 200 gallons per day Not shown Replacement reverse osmosis cartridge Not shown Replacement reverse osmosis pre filter Not shown Cleaning plug for reverse osmosis system Not shown Cleaning cartridge for reverse osmosis system Water pressure Water pressure regulator 25 psi 501781 38 MCD425A W R425A W MFD425A W P425A W Ice Machines FOMLETT POLE MCD425A W R425A W MFD425A W P425A W Ice Machines 39 SafeCLEAN SensorSAFE Maestro Plus Symphony Plus Quiet Night and Sani Sponge are trademarks of Follett Corporation Follett and RIDE are registered trademarks of Follett Corporation registered in US DLLEIT 801 Church Lane Easton PA 18040 USA m i i d Toll free 877 612 5086 1 610 252 7301 01033646R00 innovative solutions inspired by ice i p y www follettice com O Follett Corporation 9 14
37. tion Vision ice and beverage dispensers and top installation Follett ice storage bins R Remote installation Symphony ice and water dispensers P Replacement icemaker Symphony ice and water dispensers Flake ice machine MFD Top installation Follett ice storage bins N Important cautions Moving parts Do not operate with front cover removed Hot parts Do not operate with cover removed To reduce risk of shock disconnect power before servicing Most ice machine cleaners contain citric or phosphoric acid which can cause skin irritation Read caution label on product and follow instructions carefully Ice is slippery Maintain counters and floors around dispenser in a clean and ice free condition Ice is food Follow recommended cleaning instructions to maintain cleanliness of delivered ice 4 MCD425A W R425A W MFD425A W P425A Ice Machines FOMLETT Specifications Electrical Each ice machine and dispenser require a separate circuit with electrical disconnect within 10 ft 6 m Equipment ground required Standard electrical 115 V 60 Hz 1 phase Connect to a dedicated 15A circuit Maximum ice machine amperage 11A each Cord and plug provided on ice machine Plumbing 3 8 FPT water inlet 3 4 MPT drain 3 8 FPT condenser inlet water cooled condenser only 3 8 FPT condenser drain water cooled condenser only Notes Slope to drain of 1 4 per foot 6 mm per 30 4 cm ru
38. y Disconnect the power source before performing service When performing electrical service always use a meter to determine whether or not the components being serviced are energized High pressure cutout opens at 425 PSI and closes at 287 PSI auto reset The bin signal input to the control board in the 425A W ice machine must only be initiated by contact closure Do not supply power To run the ice machine in the workshop use the bin signal jumper P N 01069095 Normal operation Stage 1 Power is supplied to L1 of the control board the POWER LED light begins flashing The ice level bin thermostat in the dispenser is closed and calling for ice supplying contact closure to the control board The LOW BIN LED will be on The control board will now go through the start up sequence The board checks the water sensors located in the reservoir for continuity between the common probe B and the high probe C If continuity is not sensed the water fill valve P21 is energized High Pressure Switch RED Start Relay Compressor WHITE Electrical Box 0 power 0 LOW BIN O MAKING ICE O sLEEP cYCLE H O TIME DELAY veuow O Low warER O MAINTENANCE O sERvicE O mames O HIPRESSURE O DRAIN CLOG KS 2 Yo O CLEANER FULL LE EL ABCD NA ESS ot Bin T Stat TT Clean Switch Drain Clog Sensor Water Sensors KOottETF MCD425A W R425A W MFD425A W P425A W Ice Machines
Download Pdf Manuals
Related Search