MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines Operation and Service Manual Serial numbers below K39864 MCD425A/W_S R425A/W MCD425A/W_T MFD425A/W_T P425A/W Following installation, please forward this manual to the appropriate operations person. 801 Church Lane • Easton, PA 18040, USA Toll free (877) 612-5086 • +1 (610) 252-7301 www.follettice.
MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines
Contents Welcome to Follett. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Before you begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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, 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.
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.
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 & R425A – 18" (45.7 cm) minimum, 10 ft (3 m) maximum clearance between discharge and air intake grilles. MCD425A/W_T MFD425A/W_T MCD425A/W_S R425A/W Front view — top mount Front view — air-cooled C F B 4.81" (12.
Operation Cleaning/descaling and sanitizing 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.
CAUTION! §§ 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 the Cleaning or Sanitizing solution 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 oz. (198 g) (one 7 oz.
Service Ice machine Operation (all models) Follett’s ice machine consists of four distinct functional systems: §§ Harvesting system §§ Water system §§ Electrical control system §§ Refrigeration 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.
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.
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.
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.
Refrigeration system diagram high pressure switch high side service port condenser low side service port filter dryer compressor evaporator high pressure liquid high pressure vapor thermostatic expansion valve low pressure liquid low pressure vapor 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.
Air-Cooled ice machine capacity/24hrs. Water-Cooled ice machine capacity/24hrs. Condenser Water Temperature F/C F 60 70 80 90 100 C 16 21 27 32 38 50 460 425 390 355 320 lbs. 10 208 193 177 161 145 kg. 60 437.5 405 372.5 340 16 198 184 169 154 139 kg. 70 415 385 355 325 295 lbs. 21 188 175 161 147 134 kg. 80 405 375 345 315 285 lbs. 27 184 170 156 142 129 kg. 90 395 365 335 305 275 lbs. 32 179 166 152 138 125 kg.
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. Circuitry notes When the ice machine is used with a dispenser it receives power from the main power supply.
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. T.O.L. Fan 1 Start Relay Drain Valve 4 OR put Compressor Electrical Box WHITE Capacitor In se WHITE 5 PSC: Start winding energized through capacitor.
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. T.O.L.
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.
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 (Symphony Plus only) is off, the ice machine will go through the normal start-up sequence when the bin level control signals the control board for ice. T.O.L.
Self-flushing (when enabled) 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.
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. T.O.L.
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. After the time delay, the fill valve will re-energize and wait for continuity between the common probe and normal high before restarting.
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.
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.
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. Press CLEAN switch. Wait for LOW WATER light to illuminate. Turn OFF power. Remove top bearing insulation and compression nozzle insulation. 5. Disconnect vent and drain tube from nozzle. 6. Disconnect compression nozzle from evaporator. 7. Disconnect evaporator water feed line. 8.
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/lb. (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.
Replacement parts Replacement ice machine ordering matrix Dispenser models Replacement ice machine model Dispensers with top mounted ice machines 50CT425A & 50HT425A P425A 50HT425W & 50HT425W P425W 25CT 425A & 25HT425A P425A 25CT425W & 25HT425W P425W 110CT425A P425A 110CT425W P425W Dispensers with remote ice machines 25CR425A & 25HR425A R425A 25CR425W & 25HR425W R425W 50CR425A & 50HR425A R425A 50CR425W & 50HR425W R425W 110CR425A R425A 110CR425W R425W All U150/VU155 series with air-
Air-cooled skins assembly (MCD425A_S, R425A) 8 7 6 2 9 3 1 4 5 10 11 Reference # Description Part # 1 Gasket, duct 502781 2 Duct (including gasket) 01068188 3 Front panel 01068204 4 Spacer, base 01068220 5 Panel, right side 01068238 6 Panel, left side and rear (1 piece) 01068246 7 Bushing 01026152 8 Panel, top 01068253 9 Tube, drain 01016948 10 Fitting, water 01065375 11 Fitting, drain 00109728 28 MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines
Water-cooled skins assembly (MCD425W_S, R425W) 10 9 8 7 4 1 5 6 1 2 3 Reference # Description Part # 1 Fitting, condenser 00195966 2 Fitting, water 01065375 3 Fitting, drain 00109728 4 Panel, front 01068261 5 Spacer, base 01068220 6 Panel, right side 01068238 7 Tube, drain 01016948 8 Panel, left side and rear (1 piece) 01068246 9 Bushing 01026152 10 Panel, top 01068253 MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines 29
Louvered docking station (MCD425A/W_T) 4 3 2 1 Reference # Description Part # 1 Louver, front 01006154 2 Cover, front 01068279 3 Tube, drain 01055185 4 Lovered docking station 01068287 30 MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines
Electrical components 1 2 3 4 Reference # Description Part # 1 Capacitor, run 00997759 2 Relay start, compressor, 115 V, 60 Hz 00997726 3 Board, control circuit, 115 V, 60 Hz 01064708 4 Switch, clean 00117036 Not shown Bin thermostat (MCD425A/WBT, MCD425A/WHT, MFD425A/WBT and MFD425A/WHT only) 500514 Not shown Board, stand off control (8 required) 00903005 Not shown Relay, power to contact closure 01020734 Not shown Jumper, bin signal 01069095 Not shown Cord and plug, power
Evaporator 17 27 FOOD SERVICE 2 23 24 FLAKER COMPONENTS 1 25 3 3 4 4 30 17 HEALTHCARE 5 15 19 26 18 1 28 20 7 6 8 FLAKER 32 10 12 11 16 18 22 31 9 21 29 13 32 MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines 13
Evaporator Reference # Description Part # 1 Coupling, vee band, includes nut 502735 2 Bearing assembly, top 502736 3 Loop, ice compression, beveled (see below for Flaker-specific components) 502110 4 Auger (see below for Flaker-specific components) 502737 5 Evaporator (includes insulation jacket, 502740) 01064658 6 O ring, bearing housing 500496 7 Bearing assembly, bottom (includes O rings and condensate shield) 502738 8 O ring, mounting base 501063 9 Shield, condensate 500744
Air-cooled ice machines 23 9 22 6 16 25 11 8 7 1 10 5 18 13 19 14 12 2 15 4 24 17 21 20 3 34 MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines
Air-cooled ice machines Reference # Description Part # 1 Drier 502724 2 Condenser coil, A/C 01067461 3 Reservoir mounting bracket, a/c 01072909 4 Reservoir assembly 01064682 5 Bracket, electrical box 01068170 6 Evaporator (see page 32 and 33 for complete breakdown) — Not shown Tubing, polypropylene, reservoir supply (sold by foot) 502079 7 Valve, expansion, thermal 502726 8 Drain pan, evaporator 0018190 9 High pressure cutout 00117077 10 Mounting bracket, gearbox 01067693
Water-cooled ice machines 23 15 7 16 22 1 16 11 13 12 25 6 21 5 9 8 10 18 17 14 19 3 4 20 2 36 24 MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines
Water-cooled ice machines Reference # Description Part # 1 Drier 502724 2 Valve, water regulating (includes Iso-washer) 500537 Not shown Iso-washer (for water regulating valve) 501810 3 Reservoir assembly 01064682 4 Reservoir mounting bracket 01068162 Not shown Tubing, polypropylene, reservoir supply (sold by foot) 502079 Not shown Fitting, reservoir, plastic 1/4" stem x 1/4" push-in 00121699 5 Evaporator (see page 32 and 33 for complete breakdown) 6 Bracket, electrical box tower
Water treatment accessories for Symphony ice and water dispensers Reference # Description Part # Standard capacity filter system Not shown Follett QC4-FL4S water filter system (includes FL4S primary cartridge and head, coarse pre-filter and head, pressure gauge, flushing valve; assembled and installed on mounting bracket), one per ice machine 00130229 Not shown Follett FL4S primary replacement cartridge 00130245 Not shown Water filter cartridge – primary, carton of 6 00954297 Not shown Everpure
MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines 39
MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines
MCD425A/W, R425A/W, MFD425A/W, P425A/W Ice Machines 41
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Registratie van garanties en beoordeling van apparatuur Gefeliciteerd met uw aankoop van Follett ®-apparatuur. We hopen dat onze apparatuur uw verwachtingen invult of zelfs overstijgt, omdat we ernaar streven om hoogwaardige producten en diensten te leveren die u uitermate tevreden stellen! Lees de bijgevoegde installatie- en bedieningshandleiding zorgvuldig door. Het is belangrijk dat de installatie uitgevoerd wordt volgens de fabrieksspecificaties, zodat uw apparatuur zo efficiënt mogelijk werkt.
