Follett Maestro Plus MC 414A Series Guide de configuration

Installation and Service Videos:

www.follettice.com/servicevideolibrary

01540764R00

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

for the Operation and Service manual for your unit.

MC_414A, MF_414A Ice Machines

R290, 230 V 50 Hz

MCE425A_S

ER425A

MCE425A_T

MFE425A_T

CP425W

EP425W

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 notied 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.

2 MC_414A, MF_414A R290 230 V/50 Hz Ice Machines

Contents

Welcome to Follett. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Getting Started ........................................................................... 1

Specications .............................................................................. 4

Electrical ................................................................................ 4

Plumbing................................................................................ 4

Ambient................................................................................. 4

Shipping weight .......................................................................... 4

Technical specications .................................................................... 5

Dimensions and clearances ................................................................. 6

Cleaning ................................................................................... 7

Weekly ................................................................................. 7

Monthly ................................................................................. 7

Semi-Annually (more often if conditions dictate) ................................................. 7

Service .................................................................................... 9

Ice machine Operation (all models) ........................................................... 9

Water system ........................................................................... 10

Electrical system..........................................................................11

Electrical control system schematic - 230 V 50 Hz .............................................. 13

Electrical control system operation........................................................... 13

Refrigeration system (all models)............................................................ 23

Refrigeration system...................................................................... 24

Replacement parts ......................................................................... 28

Air-cooled skins assembly (MCE414A_S) ..................................................... 28

Louvered docking station (MCE414A_T) ...................................................... 29

Evaporator ............................................................................. 30

Shuttle Assembly ........................................................................ 32

Replacement ice machine ordering matrix..................................................... 33

Air-cooled ice machines - 230 V 50 Hz ....................................................... 34

Air-cooled ice machines - 230 V 50 Hz ....................................................... 35

Electrical components .................................................................... 36

Caution: Risk of re.

Warning: Keep ventilaton openings clear of obstruction.

Warning: Do not damage the refrigerant circuit.

Warning: Connect to potable water supply only.

CAUTION!

§Do not tilt unit further than 30° off vertical during uncrating or installation.

§Dispenser bin area contains mechanical, moving parts. Keep hands and arms clear of this area at all times. If access to this

area is required, power to unit must be disconnected rst.

§This appliance is not suitable for installation in an area where a water jet could be used.

§This appliance must not be cleaned by a water jet.

§User maintence should not be done by children.

§Follett recommends a Follett water lter system be installed in the ice machine inlet water line (standard capacity #00130229,

high capacity #00978957, carbonless high capacity #01050442).

§Prior to operation clean the dispenser in accordance with instructions found in this manual.

§Do not block air intake or exhaust.

§This appliance should be permanently connected by a qualied person in accordance with application codes.

§A qualied person shall provide a readily accessible disconnect device incorporated into the xed wiring.

§If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualied persons in order

to avoid a hazard.

§This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory, or mental

capabilities, or lack of experience and knowledge if they have been given supervision or instruction concerning use of the

appliance in a safe way and understand the hazards involved. Children should be supervised to ensure that they do not play

with the appliance.

§This appliance is designed for commercial use.

§WARNING! To avoid a hazard due to instability of the appliance, it must be xed in accordance with the instructions.

§Warranty does not cover exterior or outside installations.

§To reduce risk of shock, disconnect power before servicing.

§Connect to potable water supply only.

§Ice is slippery. Maintain counters and oors around dispenser in a clean and ice-free condition.

§Ice is food. Follow recommended cleaning instructions to maintain cleanliness of delivered ice.

MCE425ABT

Application

V – Vision

B – Bin

H – Harmony

J – Drop-in

Configuration

T – top-mount

Ice machine capacity

up to 425 lbs (193 kg)/day

Ice machine series

Maestro

Voltage

E – 230 V 50 Hz

C - 220 V 60 Hz

Condenser type

A – air-cooled

W – water-cooled

Ice machine type

C – Chewblet ice

M - MicroChewblet ice

F - Flake ice

Ice machine refrigerant

412: R449A

414: R290

425: R404A

MC_414A, MF_414A R290 230 V/50 Hz Ice Machines 3

Specications

Electrical

§Each ice machine and dispenser requires a separate circuit with electrical disconnect within 10 ft (6 m).

§Equipment ground required.

§Standard electrical – 230 V, 50 Hz

§Connect to a dedicated circuit.

§Maximum ice machine amperage – 5.5A.

§Cord provided on ice machine.

Plumbing

§3/8" FPT water inlet

§3/4" MPT drain

Notes:

§Slope to drain of 1/4" per foot (20 mm per 1 m run) 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 ow, do NOT connect drains.

§Follett recommends a Follett water lter system be installed in the ice machine inlet water line (standard capacity

#00130229, high capacity #00978957, carbonless high capacity #01050442).

Ambient

Air temperature* 100 F/38 C max. 50 F/10 C min. (best performance below 80 F/27 C)

Water temperature†90 F/32 C max. 45 F/10 C min. (best performance below 70 F/21 C)

Water pressure 70 PSIG max. (482 kPA) 10 PSIG min. (68 kPA)

Condenser water

temperature

90 F/32.2 C max. 45 F/7.2 C min

Condenser water

pressure

125 PSIG (862 kPA) max. 10 PSIG (68 kPA) min.

* Ambient air temperature is measured at the air-cooled condenser coil inlet.

† Ambient water temperature is measured in the ice machine reservoir.

Shipping weight

§73 kg (160 lb)

4 MC_414A, MF_414A R290 230 V/50 Hz Ice Machines

Technical specications

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

Amperage 2.25 2.36 2.46 2.57

High-side pressure (PSIG) 105 142 190 245

Low-side pressure (PSIG) 18.5 21 25 27

Locked rotor amps 230 V: 18.2A

Condenser water usage: @90 F/70F: 0.56 gal/min

Gearmotor data 230 V/50 Hz

Gearmotor current 1.3A (nominal)

MC_414A, MF_414A R290 230 V/50 Hz Ice Machines 5

Side view — air-cooled

20.75" (52.7 cm)

22.75" (57.8 cm)

17.00"

(43.2 cm)

RIDE model air-cooled units only

Front view — top mount

MCE414A_T

MFE414A_T

MCE414A_S

ER414A

Side view — top mount

22.49" (57.1 cm)

21.29" (54.1 cm)

22.69" (57.6 cm)

22.46" (57.1 cm)

Back view — top mount

Front view — air-cooled

4.81"

(12.0 cm)

2.31" (5.7 cm)

2.5" (6.4 cm)

18.88" (48 cm)

2.32"

(5.9 cm)

4.40" (11.2 cm)

15.22" (38.7 cm)

11.03" (28.0 cm)

8.03" (20.4 cm)

5.03" (12.8 cm)

2.34" (6 cm)

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.

§MCE414A and ER414A – 18" (45.7 cm) minimum, 10 ft (3 m) maximum clearance between discharge and air

intake grilles.

A– 3/4" MPT drain

B– 3/8" FPT water inlet

C– Electrical cord

D– 3/8" FPT condenser inlet

E– 3/8" FPT condenser drain

F– Bin signal connection (DO NOT APPLY VOLTAGE!)

6 MC_414A, MF_414A R290 230 V/50 Hz Ice Machines

Cleaning

Follett ice 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 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 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.

Recommended cleaning intervals*

Maestro Plus Frequency

Drain Line weekly

Drain Pan/Drip Pan weekly

Exterior, Water Station Tube as needed

Condenser monthly (air-cooled only)

Ice Machine semi-annually

Transport Tube semi-annually

* Ice machine must be cleaned prior to start-up.

Weekly

The exterior may be cleaned with a stainless cleaner such as 3M™ Stainless Steel Cleaner & Polish or equivalent.

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 procedure should always include both the ice machine and bin/dispenser.

§Icemaking system can be cleaned in place.

Cleaning Tool Checklist

§(1) 1.5 gallon (or larger) plastic bucket

§(2) clean cloths

§Sanitary gloves

§Safety glasses

§SafeCLEAN™ Plus ice machine cleaner

§(2) SaniSponge™ (PN 00131524 - single sponge)

MC_414A, MF_414A R290 230 V/50 Hz Ice Machines 7

CAUTION!

§Wear rubber gloves and safety goggles (or face shield) when handling SafeCLEAN Plus solution.

§Use only Follett approved cleaners.

§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.

Cleaning Procedure

Note: Check drains and drain cup to ensure they are open and owing 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 Procedure again.

2. Remove front or top cover.

3. 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 ll (about 1 quart) until

SafeCLEAN Plus

solution completely lls 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 nished cleaning, the MAINTENANCE light will turn off.

8. Remove top bearing insulation. Loosen Phillips-head screw on nozzle connected to evaporator. Remove

nozzle from evaporator side only, leave other side of nozzle connected to transport tube.

9. Soak one SaniSponge in remaining

SafeCLEAN Plus

solution.

10. Insert the sponge soaked in

SafeCLEAN Plus

solution into nozzle then insert a dry sponge into the nozzle.

11. Replace nozzle onto evaporator and tighten screw. Ensure drain is connected to reservoir and vent tubes

are connected to evaporator drain pan. Replace top bearing insulation.

12. Reconnect bin signal cable. Wait for ice to push sponges through transport tube.

13. Collect sponges from ice storage bin.

14. Replace front or top cover.

15. After 10 minutes, dispense all ice and discard.

16. Clean the dispenser/bin.

Exterior Cabinet

Clean stainless steel panels with stainless steel cleaner.

8 MC_414A, MF_414A R290 230 V/50 Hz Ice Machines

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 machine,

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 oat 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 (10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.

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

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.

water

inlet

auger

compression nozzle

ice transport tube

evaporator

port

MC_414A, MF_414A R290 230 V/50 Hz Ice Machines 9

Water system

The water level in the evaporator is controlled by a ll 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 ll 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 ltration system, ensure T.D.S level is greater than 10 ppm.

Fig. 1 Water system diagram

CLEANING CUP

WATER SUPPLY

3/8" FPT, 45-90 F (7-32 C)

10-70 PSI (69-483 KPA)

RESERVOIR FILL

SOLENOID

WASTE WATER DRAIN

3/4" FPT

WATER

RESERVOIR

EVAPORATOR

ICE

NOZZLE

DRAIN PAN

VENT

DRAIN

Fig. 2 Water level diagram

DNORMAL OPERATING RANGE

A ALARM LOW (RED)

B COMMON (BLACK)

C NORMAL HIGH (ORANGE)

D NORMAL LOW (YELLOW)

10 MC_414A, MF_414A R290 230 V/50 Hz Ice Machines

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