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Service procedures

Evaporator disassembly (Fig. 11)

1.  Disconnect power to icemaker and shut off water to icemaker.

3.  Drain evaporator and float tank.  

4.  Disconnect plastic tubing from evaporator water inlet, drain pan 

stub, compression nozzle tubing and reservoir overflow tubing from 
secured clip.

5.  Disconnect ice transport tube from compression nozzle.

6.  Remove nut and upper vee band coupling from top of evaporator. 

7.  Lift top bearing assembly straight up with a slight rotating motion and 

remove.

8.  Remove ice compression loop located at top of auger.

9.  Lift auger straight up and out of evaporator.

10.  Remove nut and lower vee band coupling from bottom of evaporator.

11.  Lift evaporator to clear bottom bearing assembly.

12.  Loosen hex head bolt in side of mounting base with 5/16 wrench and 

lift lower bearing assembly.

13.  Remove condensate shield.

14.  Remove 4 Allen head machine screws holding mounting base to 

gearbox.

15.  If replacing evaporator, remove compression nozzle from evaporator 

port.

Evaporator reassembly (Fig. 11)

1.  Clean gearmotor boss, output shaft and shaft well.

2.  Install drain pan and evaporator mounting base. 

3.  Fill gearmotor shaft well with food-grade grease.

4.  Install condensate shield and seat against gearmotor boss.

5.  Install bearing O ring in groove in evaporator mounting base.

6.  Lower bottom bearing assembly into evaporator mounting base.

7.  While maintaining a slight 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 and tighten to 70 in/lb.

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 and tighten to 70 in/lb.

14.  If evaporator was replaced, reinstall compression nozzle 

on new 

evaporator.

Gearmotor replacement

1.  Disassemble evaporator as described above.

2.  Disconnect the wire connectors.  

3.  Remove 4 screws holding gearmotor mounting plate to base of 

icemaker and lift gearbox and motor clear of icemaker (Fig. 12.1).

4.  Remove machine screws holding mounting plate to motor (Fig. 12.2).

5.  Install new motor in reverse order.

24

1

2

Fig. 11

Fig. 12

Summary of Contents for MC825 Series

Page 1: ...eries Icemaker with Remote Condensing Unit 00108647R03 801 Church Lane Easton PA 18040 USA Toll free 800 523 9361 610 252 7301 Fax 610 250 0696 www follettice com Order parts online www follettice com...

Page 2: ...eturn Policy Follett equipment may be returned for credit under the following conditions 1 The equipment is new and unused 2 A return authorization number has been issued by customer service within 30...

Page 3: ...ire technical help at any point please call our technical service group 800 523 9361 or 610 252 7301 Before you begin After uncrating and removing all packing material inspect the equipment for concea...

Page 4: ...e Power cord Water line 3 8 OD tubing Drain 3 4 MPT Evaporator connections High pressure line liquid line Power connection Low pressure line suction line NEMA 5 15 Service loop 24 25 616mm Condenser u...

Page 5: ...ote The service loop is not included when calculating the length rise or drop of the tubing run Water pressure 10 psi 70 psi Water temperature 50 F 90 F 10 C 32 C Install condenser unit Mount condense...

Page 6: ...for service 2 Position icemaker on bin a If new storage bin and icemaker position icemaker with connections facing rear of bin b If using existing bin place supplied gasket 2 5 64mm from front of bin...

Page 7: ...sing problems Follow guidelines below to ensure correct installation Call factory for assistance if you are unable to meet these requirements Note If connecting an MC825 evaporator unit to a manually...

Page 8: ...of the refrigeration line set must be USA Government Environmental Protection Agency EPA certified in proper refrigerant handling and servicing procedures A qualified person must perform all roof or w...

Page 9: ...system for up to 50 ft 15 2m line length See chart below for line length longer than 50 ft 15 2m 10 Insulate entire suction line including shut off valves to prevent condensation 11 Adjust the condens...

Page 10: ...eaner or equivalent Solution temperature must be at least 120 F 48 9 C 1 Remove evaporator unit panels required to gain access to water reservoir components Fig 7 and electrical control box Fig 8 2 Tu...

Page 11: ...itizing solution from reservoir through float evaporator drain line Fig 7 1 19 Fill reservoir Fig 7 2 with 120 F 49 C water Empty water through float evaporator drain line Fig 7 1 Repeat 3 times 20 Tu...

Page 12: ...rigerant is in the system to maintain a positive pressure on the suction side of the compressor Evaporator unit operation Follett s icemaker consists of four distinct functional systems 1 Refrigeratio...

Page 13: ...service port Check valve Receiver 14 pounds Filter drier with sight glass Low side refrigeration line run Low side service valve with service port High side refrigeration line run High side service va...

Page 14: ...ITE 115 VAC 60 HZ BLACK WHITE GREEN x WHITE BLACK FAN DRV L1 L2 9 B 7 A WHITE BLUE PURPLE WHITE L2 COMP L1 3 6 1 4 WHITE BLACK BLACK WHITE DR CORD SIGNAL BLACK BIN WHITE 60M HIGH VOLTAGE BIN COMP HP S...

Page 15: ...Water level Water level Evaporator drains Shut off valve Strainer Evaporator service drain Water in Water system diagram Water inlet Auger Compression nozzle Ice tranport tube Evaporator port Harvest...

Page 16: ...t be used In the 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 vir...

Page 17: ...r checks for water in the reservoir The Bin Empty LED B E will be on The high voltage bin signal connection is used on all Follett ice dispenser applications The high voltage terminals respond to appl...

Page 18: ...SIGNAL BLACK BIN WHITE RED RED WATER COMPRESSOR SENSOR SWITCH RESET BIN LOW V COMP FAN DRV HP SW COMP HIGH VOLTAGE BIN L1 L2 WTR PROBE WTR PROBE BIN LOW V FAN DRV L2 COMP L1 60M HIGH VOLTAGE BIN COMP...

Page 19: ...OLTAGE BIN L1 L2 WTR PROBE WTR PROBE BIN LOW V FAN DRV L2 COMP L1 60M HIGH VOLTAGE BIN COMP HP SW B T WTR 2ND B E PWR RESET DR 20M C 60M B T WTR 2ND B E PWR DR 20M C 19 Normal operation Stage 3 Refrig...

Page 20: ...LOW V FAN DRV L2 COMP L1 60M HIGH VOLTAGE BIN COMP HP SW B T WTR 2ND B E PWR RESET DR 20M C 60M B T WTR 2ND B E PWR DR 20M C 20 Normal operation Stage 4 Ice bin full The ice level control opens the B...

Page 21: ...LACK WHITE CORD SIGNAL BLACK BIN WHITE RED RED WATER COMPRESSOR SENSOR SWITCH RESET BIN LOW V COMP FAN DRV HP SW COMP HIGH VOLTAGE BIN L1 L2 WTR PROBE WTR PROBE BIN LOW V FAN DRV L2 COMP L1 60M HIGH V...

Page 22: ...L BLACK BIN WHITE RED RED WATER COMPRESSOR SENSOR SWITCH RESET BIN LOW V COMP FAN DRV HP SW COMP HIGH VOLTAGE BIN L1 L2 WTR PROBE WTR PROBE BIN LOW V FAN DRV L2 COMP L1 60M HIGH VOLTAGE BIN COMP HP SW...

Page 23: ...the reset button Diagnostic sequence no water If the water level in the float reservoir drops too low three things happen 1 The WTR light is turned OFF 2 The ice machine shuts down 3 The BT light turn...

Page 24: ...well 2 Install drain pan and evaporator mounting base 3 Fill gearmotor shaft well with food grade grease 4 Install condensate shield and seat against gearmotor boss 5 Install bearing O ring in groove...

Page 25: ...llow 20 minutes to make sure icemaker restarts Verify integrity of water supply 1 Replace control board 2 Test replace gearmotor Refer to torque out troubleshooting Troubleshooting Problem No ice prod...

Page 26: ...essor 10 Faulty expansion valve s 1 Clean evaporator with liquid icemaker cleaner 2 Clean condenser 3 Remove obstruction 4 Verify ice production capacity 5 Replace condenser fan 6 Check for leaks repa...

Page 27: ...r runs briefly draws approximately 10 to 11 amps 1 Mineral build up on evaporator surface 2 Kink in ice transport tube 3 Ice transport tube ruptured internally 4 Worn evaporator bearings 5 Bin level c...

Page 28: ...10452 2 Panel rear 00110460 3 Panel right side 00110478 4 Panel left side 00110486 5 Panel front remote 00110494 6 Panel front top mount 00110502 7 Base evaporator unit 00110510 8 Grommet ice 501921 9...

Page 29: ...ion TXV bulb 00106534 11 Sight glass 00107045 12 Coil solenoid valve 00112847 13 Ice compression nozzle 502220 14 Reservoir water line 502079 15 Service valve 00107060 Not shown Evaporator water feed...

Page 30: ...shown Transport tube sold by the foot 500366 Not shown Transport tube insulation sold by the foot 501176 Not shown Follett QC4 FL4S water filter system includes FL4S primary cartridge AFSYSTMFL43 and...

Page 31: ...3 502733 12 Bolt mounting base 502227 13 Gearbox motor assembly 502730 14 Compression nozzle with double drain 502220 16 Drain pan evaporator 502727 17 Clamp compression nozzle and screw 502226 18 Tub...

Page 32: ...iver 00110627 7 Receiver service valve 00110692 8 Service valve suction line 00110643 9 Condenser 00110668 10 Condenser fan motor 00110601 Not shown Condenser fan blade 00123067 11 Condenser fan guard...

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