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Hoshizaki FM-170EE-50-HC, Service Manual

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Hoshizaki FM-170EE-50-HC Service Manual Download Page 31

28

VI. TECHNICAL INFORMATION

1. WATER CIRCUIT AND REFRIGERANT CIRCUIT

Summary of Contents for FM-170EE-50-HC

Page 1: ...NO E2EB 814 ISSUED AUG 21 2010 REVISED SERVICE MANUAL HOSHIZAKI MODULAR ICE MAKER MODEL FM 170EE HC FM 170EE HCN FM 170EE 50 HC FM 170EE 50 HCN...

Page 2: ...NSTRUCTIONS 15 1 UNPACKING 15 2 LOCATION 16 3 INSTALLATION 17 4 ELECTRICAL CONNECTIONS 17 5 WATER SUPPLY AND DRAIN CONNECTIONS 19 IV OPERATING INSTRUCTIONS 20 1 START UP 20 2 PREPARING THE ICEMAKER FO...

Page 3: ...TION CIRCUIT 38 a APPLICABLE PARTS 38 b SERVICE INSTRUCTIONS 38 c REFRIGERANT 38 d COMPRESSOR 39 e EVAPORATOR CASING 39 f CONDENSER 39 g CONDENSER COOLING FAN MOTOR 39 h DRIER 39 i THERMOSTATIC EXPANS...

Page 4: ...1 I SPECIFICATIONS 1 DIMENSIONS CONNECTIONS a FM 170EE HC FM 170EE HCN...

Page 5: ...2 b FM 170EE 50 HC FM 170EE 50 HCN...

Page 6: ...3 2 SPECIFICATIONS a FM 170EE HC...

Page 7: ...4 b FM 170EE HCN...

Page 8: ...5 c FM 170EE 50 HC...

Page 9: ...6 d FM 170EE 50 HCN...

Page 10: ...E 50 HC and FM 170EE 50 HCN include Water Supply Evaporator Condensing and Control Assemblies Power Supply Cord Air Filter Top Panel Door Front Panel Left Front Cover Louver Spout Evaporator Reservoir...

Page 11: ...8 ICE MAKING UNIT FM 170EE HC FM 170EE 50 HC...

Page 12: ...9 ICE MAKING UNIT FM 170EE HCN FM 170EE 50 HCN...

Page 13: ...cally commands the Water Valve to open and refill the Tank This system functions therefore to maintain a constant water level inside the Evaporator assembly The Auger which is located inside the Evapo...

Page 14: ...ouch a metal part of the machine before servicing to be static free 3 Do not touch the electronic devices on either side of the board to prevent damage 4 Do not change wiring and connections Especiall...

Page 15: ...12 c SEQUENCE Fig 1 Fig 2...

Page 16: ...AA144C02 RATING 24 VAC 50 60Hz T1 60 15 sec T2 90 22 sec T3 150 45 sec T4 Max 1 sec T5 Max 0 25 sec T6 Max 1 sec CONTROL CTL PROTECT PRT X1 RELAY GEAR MOTOR X2 RELAY COMPRESSOR Note T time functions o...

Page 17: ...X1 GM and X2 CM immediately When closed energize X1 GM in 1 sec and X2 CM in 60 sec 4 Terminals 7 8 9 X1 GM contacts 8 is a movable contact 7 is a make contact and 9 is a break contact 5 Terminals 10...

Page 18: ...polystyrene as they are potential sources of danger CAUTION 1 Do not lift or manoeuvre the carton by using the shipping bands 2 Remove shipping carton tape s and packing If packing material is left in...

Page 19: ...ard you Top Panel Remove the screws and lift up Fig 5 2 LOCATION WARNING 1 This icemaker is not intended for outdoor use Normal operating ambient temperature should be within 5 C to 40 C Normal operat...

Page 20: ...igerant in its cooling unit maintenance and recharging must therefore only be carried out by authorized technicians 3 INSTALLATION Incorrect installation can cause harm to people animals or things for...

Page 21: ...Yellow The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Black The wire which is coloured Brown must be connected to the terminal which i...

Page 22: ...w so ensure drain pipe has an adequate pitch or fall Water should drain into an open trap 1 Attach angled end of white flexible inlet hose accessory to the G3 4 fitting at the top rear of the icemaker...

Page 23: ...f in doubt disconnect the icemaker Do not damage the power cord or pull it in order to disconnect the icemaker from the feed network Use the attachment plug as the main power disconnect switch for the...

Page 24: ...cuit Discard or flush down the drain 3 Clean the Storage Bin before use see V 1 PERIODICAL CLEANING 2 PREPARING THE ICEMAKER FOR LONG STORAGE WARNING When shutting off the icemaker for an extended tim...

Page 25: ...from the electrical supply network 2 A trained service person should check and clean the Condenser at least once a year 3 This appliance must not be cleaned by use of a water jet 4 To prevent possible...

Page 26: ...commended Hoshizaki sanitiser as directed 2 Soak the Scoop in the solution for more than 3 minutes Rinse thoroughly and shake to remove surplus liquid Note Using a cloth to dry may re contaminate 3 Us...

Page 27: ...attempt to shorten cleaning time 5 Wipe off any splashed or spilt cleaner sanitiser immediately 6 Do not use any ammonia type cleaners on any part of the icemaker STEP 1 Dilute the solutions with wat...

Page 28: ...Panel and refit the Front Panel Left in position 12 Allow the icemaker to stand for about 10 minutes then plug in the icemaker to make ice with the solution until the machine automatically stops 13 O...

Page 29: ...tap 22 Follow items 4 to 20 to complete sanitisation of the water system STEP 4 Use the remaining sanitising solution to sanitise removable parts 23 Remove the Front Panel Left and lift off the Top P...

Page 30: ...ng a brush Rinse with fresh water 33 Refit the Mesh into the Valve and the Valve into its correct position 34 Open the water supply tap and check for leaks 35 Refit the Top and Front Panels securely w...

Page 31: ...28 VI TECHNICAL INFORMATION 1 WATER CIRCUIT AND REFRIGERANT CIRCUIT...

Page 32: ...29 2 WIRING DIAGRAM...

Page 33: ...automatically reset to resume normal operation b PROTECTORS 1 Pressure Switch If the Pressure Switch activates the Gear Motor Fan Motor and Compressor stop simultaneously in 0 25 sec When the switch r...

Page 34: ...N OFF ON OFF ON OFF ON OFF 1sec 0 25sec 1sec 60sec 60sec PRESSURE SWITCH MOTOR PROTECTOR POWER ON OFF RESET ON OFF 3 Low Water Control The icemaker will stop when the water level in the Reservoir fall...

Page 35: ...60 465 470 475 480 485 490 495 500 10 10 21 15 32 21 Ambient Temp Water Temp C Electric Consumption KWH day 0 2 4 6 8 10 12 14 16 18 10 10 21 15 32 21 Ambient Temp Water Temp C Head Pressure bar 0 0 5...

Page 36: ...p C Ice Production Capacity kg day 470 475 480 485 490 495 500 505 10 10 21 15 32 21 Ambient Temp Water Temp C Electric Consumption KWH day 0 2 4 6 8 10 12 14 16 18 10 10 21 15 32 21 Ambient Temp Wate...

Page 37: ...contacts 1 Check for continuity and replace h Bin Control 2 Activator does not move freely 2 Clean Axle and its corresponding holes or replace Bin Control 1 Bin Control defective 1 Check Bin Control a...

Page 38: ...place Timer 1 Bad contacts 1 Check for continuity and replace 2 Coil winding opened 2 Replace b Starter 3 Loose connections 3 Tighten c Start Capacitor or Run Capacitor 1 Defective 1 Replace 1 Loose c...

Page 39: ...sary 3 OTHERS PROBLEM CHECK POSSIBLE CAUSE REMEDY 1 Bearing worn out 1 Replace 2 Fan blade deformed 2 Replace fan blade a Fan Motor 3 Fan blade does not move freely 3 Replace 1 Bearings worn out or cy...

Page 40: ...or too low 1 Connect the unit to a power supply of proper voltage b Evaporator Assy 1 Bearings or Auger worn out 1 Replace Bearing or Auger 3 Gear Motor Protector operates frequently c Bin Control 1 A...

Page 41: ...INSTRUCTIONS Always restore the original bindings after servicing the refrigeration circuit Otherwise vibration may cause overstress and damage to the circuit resulting in refrigerant leak After repla...

Page 42: ...vaporator Casing is deprived of heat and forms ice film which will be scraped and moved up by the Auger f CONDENSER The Condenser refrigerates and liquefies the high temperature high pressure refriger...

Page 43: ...Expansion Valve for proper operation remove the Bulb while the Compressor is running If the suction pressure rises the Expansion Valve is working normally Note Do not leave the Bulb removed for a long...

Page 44: ...r Extruding Head Auger Ring Mechanical Seal Evaporator O ring Lower Bearing Coupling Spline Gear Motor Socket Head Cap Screw Socket Head Cap Screw with Washer FM 170EE HC FM 170EE 50 HC FM 170EE HCN F...

Page 45: ...ker 4 FLOAT SWITCH 1 Unplug the icemaker 2 Close the water supply tap 3 Remove the Inlet Hose from the water tap and drain the Hose 4 Remove the Top Panel and the Front Panel Left 5 Drain the water sy...

Page 46: ...6 Loosen the Fitting Nut on the Control Water Valve Inlet and remove the Control Water Valve Do not lose the Packing inside the Fitting Nut 7 Remove the Reservoir Inlet Cover from the Control Water Va...

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