Follett Maestro Plus MC 414A Series Installation, Operation And Service Manual
Follett Maestro Plus MC 414A Series Installation, Operation And Service Manual

Follett Maestro Plus MC 414A Series Installation, Operation And Service Manual

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Welcome to Follett

Follett equipment enjoys a well-deserved reputation for excellent performance, long-term reliability and outstanding
after-the-sale support. To ensure that this equipment delivers that same degree of service, review this guide carefully
before you begin your installation.
Should you have need technical help, please call our Technical Service group at (877) 612-5086 or (610) 252-7301.
Please have your model number, serial number and complete and detailed explanation of the problem when
contacting Technical Service.

Getting Started

After uncrating and removing all packing material. Inspect the equipment for concealed shipping damage. All freight
is to be inspected upon delivery. If visible signs of damage exist, please refuse delivery or sign your delivery receipt
"damaged." Follett Customer Service must be notified within 48 hours. Wherever possible, please include detailed
photos of the damage with the original packaging so that we may start the freight claim process.
801 Church Lane • Easton, PA 18040, USA
Toll free (877) 612-5086 • +1 (610) 252-7301
www.follettice.com
Installation, Operation and Service Manual
Please visit https://www.follettice.com/technicaldocuments
MCE425A_S
ER425A
MC_414A, MF_414A Ice Machines
for the Operation and Service manual for your unit.
CP425W
EP425W
R290, 230 V 50 Hz
MCE425A_T
MFE425A_T
Installation and Service Videos:
www.follettice.com/servicevideolibrary
01540764R00

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Table of Contents
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Summary of Contents for Follett Maestro Plus MC 414A Series

  • Page 1: Welcome To Follett

    If visible signs of damage exist, please refuse delivery or sign your delivery receipt "damaged." Follett Customer Service must be notified within 48 hours. Wherever possible, please include detailed photos of the damage with the original packaging so that we may start the freight claim process.
  • Page 2: Table Of Contents

    Welcome to Follett........
  • Page 3 § This appliance must not be cleaned by a water jet. § User maintence should not be done by children. § 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: 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 5: Technical Specifications

    Technical specifications Refrigeration pressure data § Water regulating valve is factory set at 300 ±10 PSIG (2068.4 ± 69 kPA) head pressure. § Readings within 10% of table values should be considered normal. Compressor data Air-cooled Ambient air temperature 50 F/10 C 70 F/21.1 C 90 F/32.2 C 110 F/43.3C...
  • Page 6: 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 7: Cleaning

    Periodic cleaning 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.
  • Page 8 § Do not use solvents, abrasive cleaners, metal scrapers or sharp objects to clean any part of the dispenser. SafeCLEAN Plus Solution: Follow the directions on the SafeCLEAN Plus packaging to mix 1 gal. (3.8 L) of Follett SafeCLEAN Plus solution. Use 100 F (38 C) water.
  • Page 9: 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 10: 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 11: 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 12 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 13: Electrical Control System Schematic - 230 V 50 Hz

    Electrical control system schematic - 230 V 50 Hz 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 14 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 15 Normal operation – Stage 3 After the initial high current draw drops off, the gearmotor start start windings stay energized. The condenser fan output (P3) comes on 0.5 seconds later. T.O.L. High Pressure Switch Compressor Start Relay WHITE Compressor Electrical Box WHITE POWER Drain...
  • Page 16 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.
  • Page 17 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.
  • Page 18 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 19 T.O.L. High Pressure Switch Compressor Start Relay WHITE Compressor Electrical Box WHITE POWER Drain Fill LOW BIN BLACK Valve Valve MAKING ICE SLEEP CYCLE HI PRS TIME DELAY 1 2 3 4 5 6 7 8 LOW WATER MAINTENANCE RESET BROWN SERVICE BLACK...
  • Page 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 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 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 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 22 High refrigerant pressure Should the refrigeration pressure rise above 425 PSIG (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 PSIG (2034.0 kPA) and the board see the contacts closed, the machine will resume normal operation.
  • Page 23: Refrigeration System (All Models)

    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.
  • Page 24: Refrigeration System

    R290 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 AHRI standard 700-2016 must be used.
  • Page 25 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. 2. Weigh and record weight of container used to catch ice. 3.
  • Page 26 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 27 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 28: Replacement Parts

    Replacement parts Air-cooled skins assembly (MCE414A_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...
  • Page 29: Louvered Docking Station (Mce414A_T)

    Louvered docking station (MCE414A_T) Reference # Description Part # Louver, front 01006154 Cover, front 01068279 Tube, drain 01055185 Louvered docking station 01068287 Not shown Power, cord 01111673 MC_414A, MF_414A R290 230 V/50 Hz Ice Machines...
  • Page 30: Evaporator

    Evaporator FOOD SERVICE FLAKER COMPONENTS HEALTHCARE MicroChewblet FLAKER MC_414A, MF_414A R290 230 V/50 Hz Ice Machines...
  • Page 31 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 32: Shuttle Assembly

    Shuttle Assembly Standard on MCE414AHS, MCE414AVS, MME414ABS, MCE414AJS, MCE414ABS, MME414AJS Models only Evaporator Reference # Description Part # Cable, bin signal, shuttle 01374222 Cartridge assembly, shuttle spring 01118033 Switch, shuttle 01006261 Switch, spring and cartridge assembly 01374230 Shuttle nozzle assembly 01374214 Not Shown Complete shuttle assembly...
  • Page 33: Replacement Ice Machine Ordering Matrix

    Replacement ice machine ordering matrix Dispenser models Replacement ice machine model Dispensers with RIDE ice machines All EU150/VU155 series with air-cooled ice machines (230 V) MC_414AVS All EVU300 series with air-cooled ice machines (230 V) MC_414AVS Freestanding dispensers with ice machines in the base E110FB414A EP414A E110FB414W...
  • Page 34: Air-Cooled Ice Machines - 230 V 50 Hz

    Air-cooled ice machines - 230 V 50 Hz MC_414A, MF_414A R290 230 V/50 Hz Ice Machines...
  • Page 35: Air-Cooled Ice Machines - 230 V 50 Hz

    Air-cooled ice machines - 230 V 50 Hz Reference # Description Part # Drier 01468750 Condenser coil, A/C 01468776 Reservoir mounting bracket 01375609 Reservoir (includes lid, gasket, fasteners, clean and vent tubing, cleaning cup) 01230630 Bracket, electrical box 01068170 Evaporator (see page 34 and 35 for complete breakdown) —...
  • Page 36: Electrical Components

    Electrical components Reference # Description Part # Board, control circuit, 230 V, 50 Hz and 220 V, 60 Hz 01111657 Switch, clean 01229418 Stand offs, board (8 required) 00903005 Not shown Bin thermostat (MCE414ABT, MCE414AHT, MFE414ABT and MFE414AHT only) 500514 Not shown Relay, bin signal (power to contact closure) 01020734...
  • Page 37 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 38 Warranty Registration and Equipment Evaluation Thank you for purchasing Follett ® equipment. Our goal is to deliver high value products and services that earn your complete satisfaction by delivering high-value products and services backed by outstanding customer and technical support.

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Maestro plus mf 414a series

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