Follett Maestro Plus MCC425A S Series Operation And Service Manual
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Follett Maestro Plus MCC425A S Series Operation And Service Manual

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MCC425A/W_S
MCE425A/W_S
ER425A/W
Following installation, please forward this manual
to the appropriate operations person.
MC_425A/W, MF_425A/W, _P425A/W
Ice Machines - 230 V 50 Hz, 220 V 60 Hz
Operation and Service Manual
Serial numbers below K39864
CP425A/W
EP425A/W
801 Church Lane • Easton, PA 18040, USA
Toll free (877) 612-5086 • +1 (610) 252-7301
www.follettice.com
MCC425A/W_T
MCE425A/W_T
MFC425A/W_T
MFE425A/W_T
01083856R02

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Summary of Contents for Follett Maestro Plus MCC425A S Series

  • Page 1 MC_425A/W, MF_425A/W, _P425A/W Ice Machines - 230 V 50 Hz, 220 V 60 Hz Operation and Service Manual Serial numbers below K39864 MCC425A/W_S MCC425A/W_T MCE425A/W_S MCE425A/W_T ER425A/W MFC425A/W_T MFE425A/W_T CP425A/W EP425A/W Following installation, please forward this manual to the appropriate operations person. 801 Church Lane •...
  • Page 2 MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...
  • Page 3 § This appliance must not be cleaned by a water jet. § User maintence should not be done by children without supervision. § 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).

  • Page 4: Table Of Contents

    Welcome to Follett........

  • Page 5: Welcome To Follett

    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 LLC so that we can help in the filing of a claim, if necessary.

  • Page 6: Specifications

    § 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).

  • Page 7: Dimensions And Clearances

    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. §...

  • Page 8: Operation

    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.
  • Page 9 § 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.

  • Page 10: Service

    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.

  • Page 11: Water System

    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.

  • Page 12: Electrical System

    Electrical system 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”...
  • Page 13 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.

  • Page 14: Technical Specifications (All Models)

    Technical specifications (all models) Refrigeration system diagram high side high pressure service port switch condenser filter dryer low side service port compressor evaporator high high pressure pressure pressure pressure thermostatic vapor vapor liquid liquid expansion valve Refrigeration pressure data § Water regulating valve is factory set at 300 ±10 PSIG (2068.4 ± 69 kPA) head pressure. §...
  • Page 15 Air-Cooled ice machine capacity/24hrs. - 220 V/60 Hz Air-Cooled ice machine capacity/24hrs. - 230 V/50 Hz Ambient Air Temperature F/C Ambient Air Temperature F/C lbs. lbs. lbs. 437.5 372.5 307.5 lbs. lbs. lbs. lbs. lbs. lbs. lbs. Water-Cooled ice machine capacity/24hrs. - Water-Cooled ice machine capacity/24hrs.

  • Page 16: Electrical Control System Schematic - 230 V 50 Hz

    Electrical control system schematic - 230 V 50 Hz BLACK #26 WHITE #25 L2/N GRN-YEL #24 BLACK #23 BLACK #23 DISP BLACK #51 CONTACT POWER ICE AUX WATER AUX CLOSURE LOW BIN BLACK #01 MAKING ICE SLEEP CYCLE HI PRS TIME DELAY LOW WATER MAINTENANCE...

  • Page 17: Electrical Control System Schematic - 220 V 60 Hz

    PRESS Electrical control system operation The wiring diagrams that follow illustrate the circuitry of these 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.
  • Page 18 Normal operation – Stage 1 - 230V 50 Hz 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.
  • Page 19 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.
  • Page 20 Normal operation – Stage 4 One second (1 s) after the fan comes on, the COMPRESSOR 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.
  • Page 21 Normal operation – Stage 6 Once the bin thermostat control opens, the LOW BIN LED goes out. The compressor and gear motor outputs turn off, the MAKING ICE LED goes out and the TIME DELAY LED comes on. . T.O.L. High Pressure Switch...
  • Page 22 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.
  • Page 23 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.
  • Page 24 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 1.8A) or no current draw (0A) occurrence. If the ice machine runs without problems for 60 minutes and no additional torque errors occur, the ice machine will continue normal operation.
  • Page 25 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 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.
  • Page 26 High refrigerant pressure Should the refrigeration pressure rise above 425 PSI (2930.3 kPA), 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 (2034.0 kPA) and the board see the contacts closed, the machine will resume normal operation.

  • Page 27: Refrigeration System (All Models)

    R404A Refrigerant replacement requirements 1. Non-contaminated refrigerant removed from any Follett refrigeration system can be recycled and returned to the same 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.
  • Page 28 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. 1. Press CLEAN switch. Fig. 3 2. Wait for LOW WATER light to illuminate. 3.
  • Page 29 6. Lower bottom bearing assembly into Fig. 5 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.

  • Page 30: Replacement Parts

    Replacement parts Replacement ice machine ordering matrix Dispenser models Replacement ice machine model Dispensers with top mounted ice machines C/E110CT425A C/EP425A C/E110CT425W C/EP425W Dispensers with RIDE ice machines All C/EU150/VU155 series with air-cooled ice machines (220 V/230 V) MC_425AVS All C/EU150/VU155 series with water-cooled ice machines (220 V/230 V) MC_425WVS All C/EVU300 series with air-cooled ice machines (220 V/230 V) MC_425AVS...

  • Page 31: Air-Cooled Skins Assembly (Mce425A_S)

    Air-cooled skins assembly (MCE425A_S) Reference # Description Part # Gasket, duct 502781 Duct (including gasket) 01068188 Front panel 01068204 Spacer, base 01068220 Panel, right side 01068238 Panel, left side and rear (1 piece) 01068246 Bushing 01026152 Panel, top 01068253 Tube, drain 01016948 Fitting, water 01065375...

  • Page 32: Water-Cooled Skins Assembly (Mce425W_S)

    Water-cooled skins assembly (MCE425W_S) Reference # Description Part # Fitting, condenser 00195966 Fitting, water 01065375 Fitting, drain 00109728 Panel, front 01068261 Spacer, base 01068220 Panel, right side 01068238 Tube, drain 01016948 Panel, left side and rear (1 piece) 01068246 Bushing 01026152 Panel, top 01068253...

  • Page 33: Louvered Docking Station (Mce425A/W_T)

    Louvered docking station (MCE425A/W_T) Reference # Description Part # Louver, front 01006154 Cover, front 01068279 Tube, drain 01055185 Lovered docking station 01068287 Not shown Power, cord 01111673 MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...

  • Page 34: Evaporator

    Evaporator FOOD SERVICE FLAKER COMPONENTS HEALTHCARE MicroChewblet FLAKER MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...
  • Page 35 Evaporator Reference # Description Part # Coupling, vee band, includes nut 502735 Bearing assembly, top 502736 Loop, ice compression, beveled (see below for Flaker-specific components) 502110 Auger (see below for Flaker-specific components) 502737 Evaporator (includes insulation jacket, 502740) 01064658 O ring, bearing housing 500496 Bearing assembly, bottom (includes O rings and condensate shield) 502738...

  • Page 36: Air-Cooled Ice Machines - 230 V 50 Hz

    Air-cooled ice machines - 230 V 50 Hz MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...
  • Page 37 Air-cooled ice machines - 230 V 50 Hz Reference # Description Part # Drier 502724 Condenser coil, A/C 01067461 Reservoir mounting bracket 01113729 Reservoir assembly 01148741 Bracket, electrical box 01068170 Evaporator (see page 34 and 35 for complete breakdown) — Not shown Tubing, polypropylene, reservoir supply (sold by foot) 502079...

  • Page 38: Air-Cooled Ice Machines - 220 V 60 Hz

    Air-cooled ice machines - 220 V 60 Hz MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...
  • Page 39 Air-cooled ice machines - 220 V 60 Hz Reference # Description Part # Drier 502724 Condenser coil, A/C 01067461 Reservoir mounting bracket 01113729 Reservoir assembly 01148741 Bracket, electrical box 01068170 Evaporator (see page 32 and 33 for complete breakdown) — Not shown Tubing, polypropylene, reservoir supply (sold by foot) 502079...

  • Page 40: Water-Cooled Ice Machines - 230 V 50 Hz

    Water-cooled ice machines - 230 V 50 Hz MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...
  • Page 41 Water-cooled ice machines - 230 V 50 Hz Reference # Description Part # Drier 502724 Valve, water regulating (includes Iso-washer) 500537 Not shown Iso-washer (for water regulating valve) 501810 Reservoir assembly 01148741 Reservoir mounting bracket 01068162 Not shown Tubing, polypropylene, reservoir supply (sold by foot) 502079 Not shown Fitting, reservoir, plastic 1/4"...

  • Page 42: Water-Cooled Ice Machines - 220 V 60 Hz

    Water-cooled ice machines - 220 V 60 Hz MC_425A/W, MM_425A/W, MF_425A/W, _P425A/W Ice Machines...
  • Page 43 Water-cooled ice machines - 220 V 60 Hz Reference # Description Part # Drier 502724 Valve, water regulating (includes Iso-washer) 500537 Not shown Iso-washer (for water regulating valve) 501810 Reservoir assembly 01148741 Reservoir mounting bracket 01068162 Not shown Tubing, polypropylene, reservoir supply (sold by foot) 502079 Not shown Fitting, reservoir, plastic 1/4"...

  • Page 44: Electrical Components

    Electrical components 230 V 50 Hz 220 V 60 Hz Reference # Description Part # Capacitor, run, 230 V, 50 Hz 01087162 Relay start, compressor, 230 V, 50 Hz 01087154 Board, control circuit, 230 V, 50 Hz and 220 V, 60 Hz 01111657 Switch, clean 00117036...
  • Page 45 Description Part # Standard capacity filter system Not shown Follett QC4-FL4S water filter system (includes FL4S primary cartridge and head, 00130229 coarse pre-filter and head, pressure gauge, flushing valve; assembled and installed on mounting bracket), one per ice machine Not shown...
  • Page 46 Le rogamos consulte el manual de instalación y de instrucciones adjunto, ya que es muy importante que la instalación se realice según las especificaciones de fábrica para que el equipo funcione a su máxima eficiencia. Follett LLC no se hace responsable de los daños indirectos, costos, gastos por conexión y desconexión o pérdidas por causa de defecto de la máquina.
  • Page 47 Registrazione della garanzia e valutazione dell’attrezzatura Grazie per aver acquistato un dispositivo Follett®. Ci auguriamo che il nostro prodotto soddisfi o superi le Sue aspettative, in quanto il nostro obiettivo è quello di offrire prodotti e servizi di alta qualità che soddisfino pienamente le vostre esigenze! La preghiamo di leggere attentamente il manuale per l’installazione e per l’uso allegato.
  • Page 48 Garantiregistrering och utvärdering av utrustning Tack för att du köpt utrustning från Follett  ® . Vi hoppas att du ska tycka att den uppfyller eller överträffar dina förväntningar, då vårt mål är att leverera produkter och tjänster av högt värde som gör dig helt nöjd! Studera medföljande installations- och bruksanvisning.

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