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Condensing unit not 
running.

Compressor not 
running.

1. No power to unit.

2. Low pressure control defective, or
 incorrectly 

set.

3. Refrigerant leak.

1. Defective starting relay.
2. Defective starting capacitor.
3. Defective run capacitor
4. Defective compressor.

1. Check that circuit breakers/disconnect 
 are 

on.

2. Check control, adjust or replace.

3. Identify and repair leak.

1. Replace relay.
2. Replace capacitor.
3. Replace capacitor.
4. Replace compressor.

Step 2: Check outdoor condensing unit

Bubbles in sight 
glass and/or incorrect 
system pressures.

1. Mineral build-up on evaporator surface.

2. Dirty condenser coil.
3. Restricted airflow to condenser.
4. High outdoor temperature.
5. Defective condenser fan.
6. Low refrigerant charge.

7. Insufficient refrigerant charge for low 
 ambient 

operation.

8. Defective head pressure control valve.
9. Inefficient compressor.
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; repair, evacuate, and 
  re-charge refrigeration system.
7. Check system charge.

8. Replace head pressure control valve.
9. Replace compressor.
10. Replace expansion valve.

Problem: Low ice production

Step 1: Check evaporator unit

Problem: Outdoor unit cycles frequently during off cycle

Step 1: Check evaporator unit

Suction pressure rises 
during off cycle.

1. Leaking liquid line solenoid valve.
2. Excessive leak back through compressor 
 valves.

1. Replace solenoid valve.
2. Replace compressor

Check system 
pressures.

1. Low refrigerant charge.

2. Low pressure control defective, or
 incorrectly 

set.

3. Tripping head pressure control.

1. Check for leaks; repair, evacuate, and
  re-charge refrigeration system.
2. Check control, adjust or replace.

3. Clean condenser, check fan motor

Problem: Outdoor unit cycles intermittently during run cycle

Step 1: Check condensing unit

Содержание MC825 Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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