FM170EE50-HC Service Manual
Contents
1. 40 2 EVAPORATOR ASSEMBLY 40 S FAN MOTOR ee ee rarer 42 4 SWITCH uuu aca 42 SPECIFICATIONS N Z Lu 2 2 77 Z 0 z LLI a FM 170EE HC FM 170EE HCN 1311 0 131 21 L3INI 1 9nd LNSWHOVLLY HLIM 5031 1 5 170 50 170 50 111100 1 11 IN3AHOVLIV 3015110 0 409 2 SPECIFICATIONS 170 5 100 100 ICE PRODUCTION PER 24h 135 21 WT 150 0 165m AT 100 WT 100 WATER CONSUMPTION PER 4h Approx 0 135 210 150 A 640mm W x 600mm D x 800 798 833 mm H Mechanical Bin Control or Actuator and Reed Switch Time Delay Controlled Auto reset Overload Protector REI Manual reset Circuit Breaker LOW WATER PROTECTION Float Switch and Timer WEIGHT Net weight 71kg Gross weight 82kg PACKAGE Carton 746mm W x 706mm D x 922mm H ACCESSORIES Scoop Installation Kit Ambient Temp 5 40 C Water Supply Temp 5 350 OPERATING CONDITIONS Water Supply Pressure 0 05 0 8 170 ITEM MODEL AC SUPPLY VOLTAGE AMPERAGE STARTING AMPERAGE ELECTR2. CONTROL CTL ON X1 RELAY GEAR MOTOR X2 RELAY ON 11 01 1 1 COMPRESSOR OFF PART CODE MODEL 437305 02 H2AA144C02 RATING 24 VAC 50 60 2 T1 0 15 sec 2 90 22 sec T3 150 45 sec 1 5 0 25 sec 6 Note time functions of the Timer Board non adjustable Fig 3 19 1 Functions of Terminals 1 Terminals 1 2 Power supply AC 24V 2 Terminals 3 4 Control X1 GM and X2 CM Relays When closed energize X1 GM in 1 sec and X2 CM in 60 sec When opened de energize X1 GM in 150 sec and X2 CM in 90 sec 3 Terminals 5 6 Control X1 GM and X2 CM Relays When opened de energize 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 11 Control X2 CM Relay When opened de energize X2 CM immediately When closed energize X2 CM immediately Note 1 X2 Relay is a single pole normally open relay and its terminals are mounted on the relay itself 2 The above operation times are median See Fig 3 for details 3 GM Gear Motor CM Compressor 14 Ill INSTALLATION INSTRUCTI
3. 21 aureas ee eerste 22 1 PERIODICAL CLEANING 29 2 CLEANING OF WATER SYSTEM ispecies 24 Vi TEGHNICALINEORMATION s usss 28 1 WATER CIRCUIT AND REFRIGERANT CIRCUIT 28 DIAO PAM L il l cee 29 cmn lere cee meee a 30 a PRINCIPLE OF QBERATION 30 b PROTECTORS a 30 4 PERFORMANCE DATA Ses tc 32 aj 170 170 50 eee 32 b 170 FM 170EE 50 HCN 33 SERVICE DIAGNO IO eae eee 34 ie NO ICE PRODUC TION u ict 34 2 LOW ICE PRODUCTION S u 36 3 OTHER ee 36 VIII REMOVAL AND REPLACEMENT OF COMPONENTS 38 1 REFRIGERATION CIRCUIT hessian aaa 38 3 APPLICABEE 38 b SERVICE INSTRUCTIONS 38 BL REFRIGERANT tea 38 d COMPRESSOR 39 e EVAPORATOR CASING 39 i CONDE NSE 39 g CONDENSER COOLING FAN MOTOR 39 ono 39 i THERMOSTATIC EXPANSION
4. oot zl T 1145 L 18 2 aEnssaad H 590 5 1 1 I 1 301981047 qvid 5 1 I SOLOSIOUd TWH 1441 T1 180 ad og 3 1 NOIOSIONdT rie x _ 28 NOLIOXIONd A muss 0 a d 4001 eejng MIN 7 aa 0 me pu TATA OGY gOVITOA WHMOd la 945 4 o i 114405 01185 HOLIMS SNVY TOXINOD 18 om 4 181 2 i 44 nat IHE 29 3 PRINCIPLE OF OPERATION When the Operation Switch is moved to the ON position water is supplied through the Control Water Valve This cycle continues until the Reservoir is full and the Float Switch signals to close the Water Valve The Gear Motor will then start in 1 second and the Compressor in 60 seconds This starts the normal icemaking process During normal operation the icemaker will stop only when the Ice Storage Bin is full and the Bin Control activates This will automatically reset to resume normal operation POWER ON BIN FULL Float Switch o H n m i nnn Control Water Valve orr4 tr Bin Control Switch OFF N ON OFF 2 T Compressor ON OFF Fig 13 b
5. 15 Approx 100kg 52 21 Approx 0 165m 100 WT 10C Approx 0 135m AT 210 WT 15C Approx 0 100m AT 32C WT 210 SHAPE OF ICE Flake Flake STORAGE DIMENSIONS 940mm W x 600mm D x 800 798 833 mm H EXTERIOR INSULATION CONNECTONS ELECTR CONNECTIONS WATER SUPPLY Inlet G3 4 connected at rear side CONNECTIONS DRAN Outlet R3 4 connected at rear side 1 N ICE MAKING SYSTEM Auger type HARVESTING SYSTEM Direct driven Auger 80 W Gear Motor COMPRESSOR CONDENSER Fin and Tube type Air cooled HEAT REJECTION 1240W EVAPORATOR Copper Tube on Cylinder REFRIGERANT CONTROL Expansion Valve REFRIGERANT CHARGE R290 CE MAKING WATER CONTROL Float Switch and Water Valve ELECTRICAL PROTECTION Class Appliance 6A Circuit breaker Auto reset Overload Protector Manual reset Circuit Breaker LOW WATER PROTECTION Float Switch and Timer WEIGHT Net weight 81kg Gross weight 94kg PACKAGE Carton 1046mm W x 706mm D x 922mm H ACCESSORIES Scoop Installation Kit Ambient Temp 5 40 C Water Supply Temp 5 35 OPERATING CONDITIONS Water Supply Pressure 0 05 0 8 BIN CONTROL SYSTEM Mechanical Bin Control or Actuator and Reed Switch Time Delay Controlled COMECTONS DRAN ICE MAKING SYSTEM HARVESTING SYSTEM COMPRESSOR CONDENSER HEAT REJECTION EVAPORATOR ELECTRA PROTECTION LOW HATER PROTECTON WEIGHT
6. DRAIN CAPILLARY 227 J FAN MOTOR _ 9 COMPRESSOR CONDENSER DRIER WATER CIRCUIT WATER CIRCUIT DRAIN REFRIGERANT CIRCUIT 2 WIRING DIAGRAM 0 20071 JETOI A w a A M 2 we Wa ve A8 XNId d MOTISA ANSSHD A 39 TH LHDIT NAT ve Mad AVAD A9 SLIHM 39NVHO R NAONA quum Tq XAVI naq HOVIN LHOIT W X 1 anid na aaa a XOVIG M3oNVHUO ae 38 0 MOVIE 38 1107 80100 TUTA 2 pra z z q i A H9 f D 9 rr May j wna b E 9 I i Tx 018 d 7 QIVO8 lt TETIORINO X AV THE 821A8Q DNILUVIS lt ooooool vic 1112812
7. 4 Gear Motor a X2 Relay on 1 Bad contacts 1 Check for continuity and starts but Control Timer replace Compressor 2 Coil winding opened 2 Replace Timer will not start or Starter 1 Bad contacts 1 Check for continuity and operates replace 2 Coil winding opened 3 Tighten c Start Capacitor or 1 Defective 1 Replace Run Capacitor d Compressor or earthed tripped overheat or overcurrent low conductor 5 Gear Motor a Refrigerant Line 1 Gas leaks 1 Check for leaks with a leak and detector Reweld leak Compressor replace Drier and charge start but no ice with refrigerant The is produced amount of refrigerant is marked on Nameplate or Label 2 Refrigerant line 2 Replace the clogged clogged component 35 2 LOW ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY 1 Low ice a Refrigerant Line 1 Gas leaks 1 See 1 5 a clogged component Pressure Too Condenser too warm temperature 3 Fan rotating too slow 3 See 3 1 a vents not adjustable low 2 Low side pressure too 2 See if Expansion Valve high Bulb is mounted properly and replace the valve if necessary 3 OTHERS PROBLEM CHECK POSSIBLE CAUSE REMEDY 1 Abnormal a Fan Motor 1 Replace noise 2 Fan blade deformed 2 Replace fan blade 3 Fan blade does not 3 Replace Pos Jem cylinder valve broken 2 Mounting pad out of other surfaces wear damag
8. 2 With the Front Panel Left removed check that the Operation Switch on the Control Box is turned on 20 Circuit Motor Operation Breaker 6A Protector Switch Control Box CIRCUIT R OPERATION BREAKER PROTECTOR SWITCH 6 3A ON OFF U Control Box Condenser 8 8 Fig 9 3 Replace the Front Panel Left and Top Panel their correct position 4 Open the water supply tap 5 Connect the power supply and energise 6 The following should occur in sequence a Water Reservoir will fill b Gear Motor will start c Compressor will start IMPORTANT 1 Check the conditions and quality of the ice production 2 Do not use ice produced in the trial run It might be contaminated with foreign matter in the water circuit 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 time drain out all water from the water line and remove ice from the Storage Bin The Storage Bin should be cleaned and dried Drain the icemaker to prevent damage to the water supply line at sub freezing temperatures Shut off the icemaker until the proper ambient temperature is resumed 1 Close the water supply tap 21 2 the icemaker for about 10 minutes until the Compre
9. HOSHIZAKI MODULAR ICE MAKER MODEL 17 FM 170EE HCN FM 170EE 50 HC FM 170EE 50 HCN SERVICE MANUAL 5 IC ATION ae 1 1 DIMENSIONS ICONNECTIONS 1 al FM ZO ESC FPM TT0EE HN 1 b 170 50 FM 170EE 50 HCN 2 TIONIS i i 3 al PMA TOE EMO u cr cepe cr 3 BIEN POS AC Nail l Il ence 4 c 5 ee ene 6 GENERAL INFORMATION ill 7 28 61 51 11 u u u EEE 7 Z OPERATION How it Works aida l L 10 BOAR iii iii asss 11 OLDS TATE CONTROL mrri I I ll l 11 BOARD uuu ll iii a 11 SEQUENCE _ 12 iii INE TALLATION INSTRUCTION S u lli lil iii i 15 a N A A edi uui ei eat 15 eh ec 16 24 cur ETON iii ias 17 A EEECTRICAECONNBOTION LLL 17 5 WATER SUPPLY AND DRAIN CONNECTIONS 19 OPERATING INSTRUCTIONS cts tec cena 20 I IA TYP 2 20 2 PREPARING THE FOR LONG STORAGE
10. Water leakage at the bottom of the Evaporator is prevented by the use of a mechanical seal The Evaporator serves to change the water into ice by using a heat exchange process in conjunction with the Compressor Condenser assembly As water is used and turned into ice the level in the Evaporator and the Reservoir Tank will fall At a pre determined level a dual action Float Switch fitted to the Reservoir Tank electrically 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 Evaporator is driven by an external Gear Motor assembly The rotating Auger carries the ice upwards where it is pressed against the Extruding Head at the top of the Evaporator to remove excess water before finally being extruded and broken into irregular shapes and sizes of ice by the Flake Nugget Cutter or into cubelet ice The continuous flow of ice is then pushed into the Ice Spout and falls by gravity into the Storage Bin below Moving the Operation Switch located on the Control Box to the ON position starts an automatic and continuous icemaking process When the Storage Bin has filled with ice the Bin Control Switch located at the top of the Storage Bin stops the icemaking process When ice is removed from the Storage Bin the Bin Control Switch will automatically reset and restart the icemaking process 10 3 TIMER BOA
11. Condensing and Control Assemblies Top Panel Door WM WM WM WN Power Supply Cord Front Cover Louver Air Filter Bin Control Switch Spout Drainboard Evaporator Reservoir Circuit Breaker Compressor Control Box Gear Motor Condenser Fan Motor ICE MAKING UNIT FM 170EE HC FM 170EE 50 HC CUTTER EXTRUDING HEAD SOCKET HEAD CAP SCREW 1 amp AUGER INSULATION CYLINDER MECHANICAL SEAL O RING 040 SOCKET HEAD SCREW BEARING LOWER M6x10 HEXAGON HEAD BOLT GOUPLING SPLINE M6x2 0 GEAR MOTOR ICE MAKING UNIT FM 170EE HCN FM 170EE 50 HCN CUTTER EXTRUDING HEAD AUGER CYLINDER SOCKET HEAD CAP SCREW M8x14 MECHANICAL SEAL O RING G4 BEARING LOWER COUPLING SPLINE INSULATION SOCKET HEAD CAP SCREW 1 0 HEXAGON HEAD BOLT 6 20 2 OPERATION How it works Potable water flows from the external supply tap and enters the water inlet on the machine passes through an electrically operated Water Valve before flowing into the Reservoir Tank From the Tank water flows by gravity into the bottom of the Evaporator to completely surround the Auger and fill the Evaporator with water to the same level as in the Reservoir Tank
12. 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 operating water temperature should be within 5 C to 35 C Operation of the icemaker for extended periods outside of these normal temperature ranges may affect production capacity 2 The icemaker should not be located next to ovens grills or other high heat producing equipment 3 The location should provide a firm and level foundation for the equipment 16 Allow 15 cm clearance at rear sides top for proper air circulation and ease of maintenance and or service should they be required This appliance is not suitable for installation in an area where a water jet could be used and where dripping is not allowed Do not place anything on top of the icemaker or in front of the Louver This icemaker will not work at subfreezing temperatures To prevent damage to the water supply line drain the icemaker when air temperature is below zero see 2 PREPARING THE ICEMAKER FOR LONG STORAGE in the instruction manual The noise from this icemaker is 55 dB or less Avoid prolonged exposure of the appliance to direct sunlight This appliance contains flammable refrigerant in its cooling unit maintenance and recharging must therefore only be carried out by authorized technicians 3 INSTALLATION
13. 1 Unplug the icemaker 2 Close the water supply tap 24 3 Remove all ice from the Storage Bin to avoid contamination by the cleaner 4 Remove the Front Panel Left and the Top Panel 5 Unhook the Drain Hose and drain the water system 6 Refit the Drain Hose in its correct position 7 Remove the Control Water Valve by releasing the Fitting Nut Do not lose the Packing 8 Remove the Cover of the Reservoir Remove any loose debris or scale 9 Carefully fill the Reservoir with the solution to the overflow point If necessary use a small brush to clean the inside of the Reservoir 10 Refit the Cover of the Reservoir and the Control Water Valve in their correct position Note This unit will start immediately the power is turned on when the Reservoir is full 11 Loose fit the Top 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 Open the water supply tap and allow the machine to continue icemaking for a further 15 minutes Unplug the icemaker 14 Remove the Front Panel Left 15 Unhook the Drain Hose and drain the water system 16 Refit the Front Panel Left in its correct position 17 Plug in the icemaker to supply water to the Reservoir 18 Unplug the icemaker when the Gear Motor starts 19 Repeat items 14 to 18 at least twice to fully flush the sol
14. Incorrect installation can cause harm to people animals or things for which the manufacturer cannot be held responsible 1 Position the icemaker in the selected permanent site 2 Level the icemaker in both the left to right and front to rear directions by adjusting the legs 4 ELECTRICAL CONNECTIONS WARNING THIS APPLIANCE MUST BE EARTHED This icemaker requires an earth that meets the national and local electrical code requirements To prevent possible severe electrical shock to individuals or extensive damage to equipment install a proper earth wire to the icemaker Remove the plug from the mains socket before any maintenance repairs or cleaning is undertaken This appliance requires a separate 220 240VAC 13A supply The electrical supply must be protected by a suitable circuit breaker 17 The main control box fuse is rated at 6A and should only be replaced by qualified service engineer Usually an electrical permit and services of a licensed electrician are required the supply cord and the plug should need to be replaced it should only be done by a qualified service engineer For the U K and the Republic of Ireland only The wires in the mains lead are coloured in accordance with the following code Green amp Yellow Earth Blue Neutral Brown Live As the colours of the wire in the mains lead of this appliance may not correspond with the coloured markings identifying the te
15. use warm water and a neutral cleaner to wash the Air Filter 7 Air Filter m 4 SSS 3 Rinse and dry the Air Filter thoroughly and place it in position 23 2 CLEANING OF WATER SYSTEM WARNING HOSHIZAKI recommends cleaning this unit at least twice a year More frequent cleaning however may be required in some existing water conditions Always wear rubber gloves eye protectors apron etc for safe handling of the cleaner and sanitiser Use the cleaners and sanitisers recommended by Hoshizaki Contact your local Hoshizaki office for further details The instructions below give an example of those recommended cleaners and sanitisers Never mix cleaning and sanitising solutions in an attempt to shorten cleaning time Wipe off any splashed or spilt cleaner sanitiser immediately Do not use any ammonia type cleaners on any part of the icemaker STEP 1 Dilute the solutions with water as follows Cleaning solution Nickel Safe Ice Machine Cleaner by The Rectorseal Corporation or similar Prepare approximately 3 L of solution as directed on the container Sanitising solution 30 mL of 5 25 sodium hypochlorite with 7 6 L of water or the Hoshizaki recommended sanitiser as directed on the container IMPORTANT For safety and maximum effectiveness use the solutions immediately after dilution STEP 2 Use the cleaning solution to remove lime deposits in the water system
16. water should be used for the icemaker Water supply pressure should be minimum 0 5 bar and maximum 8 bar If the pressure exceeds 8 bar use a proper pressure reducing valve Do NOT throttle back the supply tap A plumbing permit and services of a licensed plumber may be required in some areas The icemaker drain is gravity flow 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 as indicated ensuring rubber sealing washer is correctly positioned Hand tighten sufficiently to provide leak free joint 2 Attach the other end of inlet hose to the water tap noting washer is correctly positioned before hand tightening as above 3 Attach grey flexible outlet hose accessory to the R3 4 fitting at the bottom rear of the icemaker as indicated confirming fitment of rubber washer before finally hand tightening the joint This pipe can be cut to length as necessary to suit position of main Inlet G3 4 drain a Inlet Hose st Water Supply Tap Drain Outlet Inlet Hose Water Supply 6 6 7 19 IV OPERATING INSTRUCTIONS WARNING This icemaker is designed to produce and store edible ice To keep the icemaker hygienic Wash your hands before removing ice Use the Plastic Scoop prov
17. 42 5 CONTROL WATER VALVE 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 Disconnect the Terminals from the Control Water Valve 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 Valve 8 Install the new Control Water Valve 9 Assemble the removed parts in the reverse order of which they were removed 10 Open the water supply tap 11 Check for water leaks 12 Refit the panels in their correct position 13 Plug in the icemaker 43
18. IC CONSUMPTION POWER FACTOR POHER SUPPLY CAPACTY App rox 145kg AT 100 WT 100 ICE PRODUCTION PER 24h Approx 120kg 216 WT 15 Approx 90kg 32 210 Approx 0 145m AT 10 WT 10C WATER CONSUMPTION PER 24h Approx 0 120m AT 21 150 Approx 90 32 210 SHAPE OF ICE Nugget MAX STORAGE CAPACITY Approx 32kg Leveled Bin Control Setting Approx 27kq DIMENSIONS 640mm W x 600mm D x 800 798 833 mm H EXTERIOR Stainless Steel Galvanized Steel Rear INSULATION Polyurethane Foam CONNECTIONS ELECTRC Y Type Con with EU Plug i CONNECTIONS WATER SUPPLY Inlet G3 4 connected at rear side CONNECTIONS DRA ICE MAKING SYSTE HARVESTING SYSTEM COMPRESSOR CONDENSER HEAT REJECTION EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARG BIN CONTROL SYSTEM Mechanical Bin Control or Actuator and Reed Switch Time Delay Controlled CE WANG WAER CONTROL ELECTRICAL PROTECTON Auto reset Overload Protector Manual reset Circuit Breaker LOW WATER PROTECTION Float Switch and Timer WEIGHT Net weight 71kg Gross weight 82kg PACKAGE Carton 746mm W x 706mm D x 922 ACCESSORIES Scoop Installation Kit Ambient Temp 5 40 Water Supply Temp 5 350 OPERATING CONDITIONS Water Supply Pressure 0 05 0 8 FM 170EE 50 HC 7796 Approx 165kg 10 10 Approx 135kg 21
19. N LOW WATER l 15 90sec 15 60sec 150sec 60sec Fig 15 31 4 PERFORMANCE DATA a FM 170EE HC FM 170EE 50 HC 180 160 140 120 100 80 60 40 20 0 Ice Production Capacity kg day 500 495 490 485 480 475 470 465 460 455 450 Electric Consumption KWH day 10 10 21 15 32 21 Ambient Temp Water Temp N Head Pressure bar N O 10 10 21 15 32 21 Ambient Temp Water Temp m Suction Pressure bar Head Pressure bar 10 10 21 15 32 21 Ambient Temp Water Temp C 32 Suction Pressure bar b 170 FM 170EE 50 HCN 1 1 1 1 Ice Production Capacity kg day 60 40 20 00 80 60 40 20 505 Electric Consumption KWH day Head Pressure bar 500 495 gk 8 a N O N 10 10 10 10 10 10 21 15 32 21 Ambient Temp Water Temp C 21 15 32 21 Ambient Temp Water Temp C m Suction Pressure bar Head Pressure bar 21 15 Ambient Temp Water Temp C 33 32 21 2 5 Suction Pressure bar Vil SERVICE DIAGNOSIS 1 NO ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY 1 The icemaker a Power Supply 1 OFF position 1 Move to ON position will not start 2 Tighten 3 Bad contacts 3 Check for continuity and r
20. ONS WARNING The installation must be carried out by qualified personnel in accordance with current regulations according to the manufacturer s instructions 1 UNPACKING WARNING Children should not be allowed in reach of the packaging elements plastic bags and expanded 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 the icemaker it will not work properly Top Panel Door Front Panel Left TIN WM WM WM Power Supply Cord CTI O Front Cover Louver Be Yi Air Filter Fig 4 1 After removing the packaging make sure that the icemaker is in good condition If in doubt please do not use the equipment 2 Remove the shipping tape holding the Door and Front Panel 15 3 Open the Door take out the package containing accessories and check the contents a Installation Kit Inlet Hose Outlet Hose Adjustable Leg b Scoop fi 4 Remove the Front Panel Left and Top Panel See Fig 5 5 Remove the protective plastic film from the panels If the icemaker is exposed to the sun or to heat remove the film after the icemaker cools Top Panel Protective Plastic Film Front Panel Left Adjustable Leg Front Panel Left Remove the screws Lift up and pull toward you Top Panel
21. OOLING FAN MOTOR The Fan Motor cools the Air cooled Condenser and sends air to condense refrigerant gas inside the Condenser h DRIER The Drier uses desiccants molecular sieves activated alumina to absorb moisture in the refrigeration circuit The built in filter also corrects foreign matter in the refrigeration 39 circuit to prevent troubles with valves clogged with dirt or moisture i THERMOSTATIC EXPANSION VALVE The Expansion Valve throttles high pressure liquid refrigerant into low temperature low pressure state by adiabatic expansion and maintains the proper amount of refrigerant supply depending on the Evaporator load The Thermostatic Expansion Valve controls the valve position to regulate the superheat difference between evaporating temperature and suction gas temperature No superheat control is available from outside To check the 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 time while the Compressor is running The Compressor may fail due to liquid return 2 EVAPORATOR ASSEMBLY A WARNING This machine contains flammable refrigerant Do not attempt to disassemble and service the evaporator assembly unless qualified competent and authorised to do 50 If component of the evaporator assembly requires removal or replacement please conta
22. PACKAGE ACCESSORIES 4 170 50 MODEL AC SUPPLY VOLTAGE AMPERAGE STARTING AMPERAGE ELECTR CONSUMPTION POWER FACTOR POWER SUPPLY CAPACITY Min O 79KVA 3 145kg 100 WT 10C ICE PRODUCTION PER 24h 120kg AT 210 150 0 145m3 AT 100 WT 10C WATER CONSUMPTION PER Approx 0 120 210 150 Approx 0 090m3 AT 320 WT 21C SHAPE OF ICE STORAGE CAPACITY DIMENSIONS 940mm W x 600mm D x 800 798 853 EXTERIOR INSULATION CONNECTONS ELECT CONNECHONS DRN ICE MAKING SYSTE HARVESTING SYSTEM COMPRESSOR CONDENSER HEAT REJECTION EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE ICE MAKING HATER CONTROL Float Switch and Water Valve ELECTRICAL PROTECTION Class Appliance 6A Circuit breaker BIN CONTROL SYSTEM Mechanical Bin Control or Actuator and Reed Switch Time Delay Controlled Auto reset Overload Protector Manual reset Circuit Breaker LOW WATER PROTECTION Float Switch and Timer WEIGHT Net weight 81kg Gross weight 94kg PACKAGE Carton 1046mm W x 706mm D x 922mm H ACCESSORIES Scoop Installation Kit Ambient Temp 5 400 Water Supply Temp 5 35 OPERATING CONDITIONS Water Supply Pressure 0 05 0 I GENERAL INFORMATION 1 CONSTRUCTION Self contained flaker models FM 170EE HC FM 170EE HCN 170 50 and FM 170EE 50 HCN include Water Supply Evaporator
23. PPLICABLE PARTS Refrigerant R290 Compressor Evaporator Casing Air cooled Condenser Air cooled Condenser Fan Motor Drier Thermal Expansion Valve with MOP b SERVICE 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 replacing the Evaporator or Auger run the icemaker for 30 minutes to produce ice check for impurities and discard REFRIGERANT The HFC free refrigerant is flammable and sealed in the refrigeration system Although the refrigerant does not leak out under normal usage take utmost care when handling this icemaker so as not to cause any damages to the system In the case of accidental damage to the refrigeration system causing refrigerant leak do not create a source of ignition in the area Do not operate electrical switches or plugs in the area do not use naked flame Immediately ventilate the area by opening doors and or windows 38 4 COMPRESSOR The Compressor absorbs the low pressure refrigerant gas vaporized in the Evaporator to reduce the pressure inside the Evaporator compresses the refrigerant into high temperature high pressure gas and sends it out to the Condenser The hermetic type Compressor is efficient in refrigeration and the refrigeration circuit is designed to endure long hours of operation The Compressor is mounted on vibration damp
24. 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 resets at the correct pressure the icemaker starts the icemaking process in the same way as startup See a PRINCIPLE OF OPERATION Although the Pressure Switch will automatically reset the Compressor will stop for at least 5 minutes for protection in case the head pressure rises to activate the Pressure Switch again If this happens the icemaker will start and stop repeatedly without making ice until the cause of head pressure rise is removed 2 Motor Protector GM When the Protector activates the Gear Motor Fan Motor and Compressor stop simultaneously in 0 25 sec The Protector has to be manually reset Check and resolve the cause of the Protector tripping before pressing the Reset 30 Float Switch Control Water Valve Pressure Switch Gear Motor Fan Motor Compressor 3 Low Water Control PRESSURE SWITCH MOTOR PROTECTOR POWER ON OFF RESET The icemaker will stop when the water level in the Reservoir falls below the lower float level and is not refilled to the upper float level within 90 seconds due to either an interruption in the water supply or low water pressure When the water reaches the upper float level the icemaker will automatically resume the icemaking process Float Switch Control Water Valve Gear Motor Fan Motor Compressor POWER O
25. RD a SOLID STATE CONTROL 1 An exclusive HOSHIZAKI solid state control is employed 2 A Printed Circuit Board hereafter called Timer Board includes a stable and high quality control system 3 No adjustment is required b TIMER BOARD CAUTION Fragile handle very carefully Atimer board contains CMOS Complementary Metal Oxide Semiconductor integrated circuits which are susceptible to failure due to static discharge It is especially important to either wear an anti static wrist strap or touch a metal part of the machine before servicing to be static free Do not touch the electronic devices on either side of the board to prevent damage Do not change wiring and connections Especially never misconnect terminals Do not repair the electronic devices or parts on the board in the field Always replace the whole board assembly when it fails The icemaker is controlled by the Timer Board for the following purposes 1 To prevent the Gear Motor and the Compressor from starting or stopping simultaneously 2 To reduce ice remaining in the Evaporator 3 To protect the unit in case of low water and low water pressure 4 To protect the unit from short cycling if the Bin Control resets quickly 11 YYIYYZH h GAFN 1112TP DC24V 5 ma one DC24V 04 r gt L 10 4 m SEQUENCE 24VAC 50 60H2 1
26. ct the manufacturer HOSHIZAKI EUROPE LIMITED Telford 70 Stafford Park 7 Telford Shropshire TF3 3BQ UK Tel 44 0 1952 291777 Fax 44 0 1952 292777 a APPLICABLE PARTS See Fig 16 40 Socket Head FM 170EE HC Cap Screw FM 170EE 50 HC FM 170EE HCN FM 170EE 50 HCN 1 Socket Head Screw with Washer Ring Mechanical Seal Gear Motor 41 3 FAN MOTOR 1 Unplug the icemaker 2 Remove the Top Panel the Front Panel Left and the Left Side Panel 3 Remove the wire connectors from the Fan Motor leads 4 Remove the Fan Motor Bracket and the Fan Motor 5 Install the new Fan Motor onto the Bracket and re fix the Fan Blade 6 Refit the Fan Motor Assembly and the wire connectors 7 Refit the panels in their correct position 8 Plug in the icemaker 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 system using the Drain Hose Water Level Gauge 6 Disconnect the wire connectors of the Float Switch leads 7 Unfasten the flanged top turn it and then remove the Float Switch 8 Install the new Float Switch 9 Re connect the switch leads using new connectors 10 Refit the panels in their correct position 11 Open the water supply tap 12 Plug in the icemaker and check the Float Switch functions normally
27. d Hoshizaki sanitiser as directed 5 Soak a clean sponge or cloth with the solution and wipe all the surfaces of the Bin Liner Plastic Spill Flap and Drain Cap 6 Refit the Drain Cap Wipe the inside surface of the Bin Door with the solution Close the Bin Door 7 The remaining solution can be used to sanitise utensils Note Do not wipe dry or rinse after sanitising but allow to air dry 3 Scoop Bin Door Exterior and Door Handle Cleaning Sanitisation Daily 1 Either mix 3 litres of water with 11 ml of 5 25 sodium hypochlorite solution in a suitable container or the recommended 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 Use a neutral cleaner to wash the Storage Bin Door exterior especially the Handle at the top of the Door Rinse with a clean cloth and fresh water 4 Soak a clean cloth with the sanitising solution and wipe the surfaces Use fresh water and a clean cloth to rinse 4 Air Filter Plastic mesh Air Filters remove dirt or dust from the air and keep the Condenser from getting clogged If the Filters get clogged the icemaker s performance will be reduced Remove and clean the Air Filter at least twice per month 1 Slide the Air Filter off the Louver SS 2 Clean the Air Filter by using a vacuum cleaner When severely clogged
28. e loss 2 Scale on inside wall of 2 Remove Auger Use a Freezing Cylinder solution of lime removing cleaner to clean periodically If water is found to surpass the following levels install a conditioner Hardness 50 ppm Silica 30 ppm 3 Water does not flow 3 Straighten bent hose from Reservoir into Evaporator air staying in Evaporator 36 2 Overflow from 1 Install a Pressure Reservoir high Reducing Valve not stop close replace 3 Gear Motor 1 Connect the unit to Protector Voltage power supply of proper operates voltage frequently 1 Replace Bearing or Auger worn out move freely corresponding holes or replace Bin Control not stop even if 2 Bin is full of 2 Activator does not 2 Clean Axle and its ice move freely corresponding holes or replace Bin Control the bottom of Evaporator 5 Water leaks at a Mechanical Seal 2 Bad assembly 2 Clean and assemble 37 Vill REMOVAL AND REPLACEMENT OF COMPONENTS 1 REFRIGERATION CIRCUIT A WARNING This machine contains flammable refrigerant Do not attempt to break into the refrigerant circuit unless qualified competent and authorised to do so If any component of the refrigeration circuit requires removal or replacement please contact the manufacturer HOSHIZAKI EUROPE LIMITED Telford 70 Stafford Park 7 Telford Shropshire TF3 3BQ UK Tel 44 0 1952 291777 Fax 44 0 1952 292777 a A
29. e Fig 12 31 Remove the Mesh Filter from the inlet 47 Filter side of the Valve See Fig 12 32 Clean the Mesh using a brush Rinse Fig 12 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 with the screws 36 Plug in the icemaker and make ice for 30 minutes 37 Unplug the icemaker and pour warm water into the Storage Bin to melt the ice 38 Plug in the icemaker and start the automatic icemaking process IMPORTANT After cleaning do not use ice made from the sanitizing solution Be careful not to leave any solution in the Storage Bin Follow carefully any instructions provided with the bottles of cleaning or sanitizing solution Never run the icemaker when the Reservoir is empty 27 TECHNICAL INFORMATION 1 WATER CIRCUIT AND REFRIGERANT CIRCUIT WATER VALVE RESERVOIR DRIP PAN FLOAT SWITCH CAP v PINCH COCK ir ub 4 0 q WATER SUPPLY um EVAPORATOR em lt DRAIN PAN c gt lt
30. eplace b Circuit Breaker 2 Bad contacts 2 Check for continuity and replace c Transformer 1 Disconnected 1 Connect Receptacle on upper part of Control Box e Water Valve g Plug and Control Box or Receptacle position replace 2 Clean Axle and its move freely corresponding holes or replace Bin Control 2 Switch turned on 2 Check Protection Switch 2 Water does not Water Control 1 Contacts fused 1 Replace stop and the Relay 2 Coil winding opened a icemaker will b Float Switch 1 Bad contacts 1 Check for continuity and not start replace 2 Float does not move 2 Clean or replace freely 1 Disconnected 3 Water has Water Control 1 Bad contacts 1 Check for continuity and been supplied Rela replace a but the b Gear Motor 1 Tripped 1 Find the cause resolve it icemaker will Protector and press Reset Button on not start Motor Protector h Bi i Protection Switch 1 Bin Control defective 1 Check Bin Control and replace c Gear Motor Relay 1 Coil winding opened Control Timer 4 Control Timer 1 Broken 1 Replace Printed Circuit Board 34 CHECK POSSIBLE CAUSE REMEDY 3 Continued e Gear Motor 1 Coil winding opened Protect Relay f replace Condenser too warm temperature 4 Refrigerant 4 Recharge overcharged 5 Refrigerant line or components plugged replace 7 Tighten
31. ided accessory The Storage Bin is for ice use only Do not store anything else in the Bin Clean the Storage Bin before use see 1 PERIODICAL CLEANING Keep the Scoop clean Clean it by using a neutral cleaner and rinse thoroughly Close the Door after removing ice to prevent entrance of dirt dust or insects into the Storage Bin The use of any electrical equipment involves the observance of some fundamental rules particular Instances of high humidity and moisture increase the risk of electrical short circuits and potential electrical shocks If 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 icemaker Appliance must be positioned so that the plug is accessible Do not touch the attachment plug and other electrical parts or operate the Operation Switch with damp hands This appliance is not suitable for unsupervised use by young children or aged or infirm persons Do not attempt to modify the icemaker Only qualified personnel may disassemble or repair the appliance 3 All parts are factory adjusted Improper adjustments may result in failure 4 the unit is turned off wait for at least 3 minutes before restarting the icemaker to prevent damage to the Compressor 1 START UP 1 Check that the power supply cord is disconnected
32. ing rubber to prevent transmission of vibration In case of accidental overload the Case Thermostat or Overload Relay will shut down the Compressor The Reset Button must be pressed to reset the Overload Relay e EVAPORATOR CASING The Evaporator Casing is a thin and rigid stainless steel pipe tightly coiled around with a copper tube and solder finished The refrigerant flows through a very narrow path in the Expansion Valve with a sudden drop of pressure and evaporates by absorbing heat of vaporization from the Evaporator Casing The water supplied inside the Evaporator 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 refrigerant gas discharged from the Compressor into high pressure liquid refrigerant The Condenser is air cooled A dirty Condenser will significantly reduce the refrigeration efficiency and performance and will also shorten the service life of the components especially refrigeration circuit The frequency of cleaning depends on the installation conditions a Air cooled Condenser Spiral tube type A copper tube is attached on a spiral aluminum plate with high heat conductivity to promote heat radiation and a Fan Motor is also provided for forced air cooling Use a vacuum cleaner or brush to remove dirt and dust between the spiral fins Be careful not to bend the fins g CONDENSER C
33. rminals in your plug proceed as follows The wire which is coloured Green and Yellow must be connected to the terminal in the plug which is marked with the letter E or by the symbol or coloured Green or Green and 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 is marked with the letter L or coloured Red Should the socket outlets in the installation site not be suitable for the plug supplied with your product the plug must be removed cut off if it is moulded on plug and an appropriate plug fitted If the non rewirable plug has been cut from the power supply cord it must be disposed of There should be no attempt to reuse it Inserting such a plug into a socket elsewhere presents a serious risk of electrical shock The non rewirable plug must never be used without a fuse cover being fitted The correct replacement for the detachable fuse cover is identifiable from the manufacturer s reference number stamped on the plug Supply of replacement fuse covers can be obtained from Hoshizaki Parts Service Centres Fuses should be rated at 13A and approved to BS 1362 18 5 WATER SUPPLY AND DRAIN CONNECTIONS The connections to the mains water supply must be made in accordance with the countries current requirements of the Water Supply or Water Fittings Regulations Only potable
34. ssor the Gear Motor stop automatically 3 Unplug the icemaker and remove the Front Panel Left 4 Remove the Inlet Hose from the water tap and drain the Hose 5 Unhook the Drain Hose Water Level Gauge 6 Drain water and refit the Drain Hose the Inlet Hose and the Front Panel in their correct position 7 Remove all ice from the Storage Bin Clean and dry the Bin V MAINTENANCE WARNING Before carrying out any cleaning or maintenance operations unplug the icemaker from the electrical supply network Atrained service person should check and clean the Condenser at least once a year This appliance must not be cleaned by use of a water jet TO prevent possible damage do not clean the plastic parts with water above 40 C or in a dishwasher 1 PERIODICAL CLEANING 1 Exterior Wipe the exterior at least once per week with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off grease or dirt 2 Storage Bin Interior Cleaning Sanitisation as required 1 Open the Storage Bin Door and remove all ice 2 Remove the Drain Cap located in the base of the Storage Bin 3 Wash the Bin Liner Plastic Spill Flap and Drain Cap with a neutral non abrasive cleaner Rinse thoroughly 22 Note Take care to damage the Bin Control Actuator at the top of the Bin 4 Mix 5 litres of water with 18 ml of 5 25 sodium hypochlorite solution in a suitable container or the recommende
35. ution 20 Pour warm water into the Storage Bin to melt any ice down the drain Note 1 If the machine has heavy deposits of scale repeat the complete cleaning procedure 2 Do not increase the proportion of cleaning solution to shorten cleaning times as this may lock the Auger when completing item 12 25 3 Note Sanitising should always be completed after cleaning or alternately as individual procedure if conditions exist to make it necessary Use 2 8 lit of the sanitizing solution to sanitize the icemaker 21 Close the water supply tap 22 Follow items 4 to 20 to complete sanitisation of the water system lt STEP 4 gt Use the remaining sanitising solution to sanitise removable parts 23 Remove the Front Panel Left and lift off the Top Panel 24 Remove the Snap Pin the Shaft and the Activator See Fig 11 from the Bin Control Assembly 25 Remove the Thumbscrews the Spout and the Spout Packing See Fig 11 1 Shaft 2 Activator 3 Snap Pin 4 Spout 5 Thumbscrew 6 Spout Packing 26 Immerse these parts the sanitizing solution for about 15 minutes 27 Rinse these parts thoroughtly with clean water IMPORTANT If the solution is left on these parts they will corrode 28 Refit the removed parts in reverse order 29 Close the water supply tap Do not remove 30 Remove the Control Water Valve by releasing the Fitting Nut Do not lose the Packing Se
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