Hoshizaki America, Inc.
Contents
1. E Compressor Power SE H plc P Drier Rear Lower Rear Panel C 101BAH AD Shown 2 Ice Making Assembly Cutter motionless F Evaporator Flange Seal Bolt Extruding Head al A and Upper i N Bearing N Auger m 7 rr Cylinder R Mechanical Seal Gear Motor Socket Head Cap Screvv 2 vvith VVasher im ZUG N m ISNT SIS TE ISSN ES O Ring Housing and M Lower Bearing 5 1 Spline Coupling Sar FR BON ag 24 zu g 15 7 eu iL nnde EM HII LI a LL E 3 Water Refrigeration Circuit Diagram Inlet Water Valve Water Inlet Evaporator Condensate il in Drain Pan Drip Pan Vir Water Level Float Switch CH a Water Reservoir Overflow Hose Evaporator Condensate Drain Pan Drip Pan Hose Gear Motor Evaporator Water Supply Hose Drain Valve Drain Valve Drain Hose fee To Bin Bin Drain Hose pw Gear Motor Gear Motor Drain Pan Hose x Drain Pan To Drain gt Drier Capillary Tube Condenser Condenser Fan Motor2. Remove the seal bolts securing the extruding head and evaporator flange then grasp the cutter and lift off NOTICE Discard existing seal bolts after removal Seal bolts must be replaced once removed because seal material is one time use only 10 Remove the cutter from the old extruding head and place it on the new extruding head 11 Place and align the new extruding head and evaporator flange See Fig 7 Spout 4 Flat section towards storage bin front of machine Flange Fig 7 12 If new seal bolts do not have preapplied threadlocker apply Loctite 243 or equivalent threadlocker to seal bolts Tighten new seal bolts to a torque of 11 1 ft Ib 15 N m 13 Tighten down the cutter 14 15 16 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process Secure the packing and spout in their correct positions Open the water supply line shut off valve 17 Once the appliance starts to produce ice allow it to run for another 30 minutes Check for water leaks 18 After 30 minutes move the control switch to the OFF position Unplug the appliance from the electrical outlet 19 Pour warm water into the storage bin and melt the ice Clean the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 20 Replace the top panel in its correct position 21 Plug the appliance into the electrical outlet
3. NO USHMS 1009 ap 828814 Z Je SIE SO 999 06 WUNUIKEJ J Jayewad p sol SH Y ill SI Ill r UaU 7777777777 7Vv77 MOT 2 zl PAD Madness L sdas eys MOL seues 5407 4 54 8101 2 10 B Service Diagnosis A WARNING This appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire Risk of electric shock Use extreme caution and exercise safe electrical practices Moving parts e g fan blade can crush and cut Keep hands clear CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after the appliance is serviced Make sure that none have fallen into the storage bin Make sure all food zones in the appliance and storage bin are clean after service After service make sure that there are no wires pinched between the panels and icemaker Make sure you do not damage or pinch the water supply line drain line or power cord Ice Production Check To check production prepare a bucket or pan to catch the ice and a set of scales to vveigh the ice After the appliance has operated for 10 to 20 minutes catch the ice production for 10 minutes VVeigh the ice to establish the batch weight Multipiy the batch vveight by 144 for the total production in 24 hours VVhen
4. BC engages opens and red LED turns off If not replace BC See II C Bin Control Check With BC engaged open and red LED off TDR de energizes and ST starts If not check for 115VAC at WCR 5 W BK to neutral W If 115VAC is present replace BC If 115VAC is not present 90 sec later ST terminates and Comp CR FM and GM de energize If not replace TDR Legend BC bin control Comp compressor CR compressor relay FM fan motor FS float switch FT fill timer GM gear motor LFS lower float switch PTC start relay ST shutdown timer TDR time delay relay UFS upper float switch WCR water control relay WV inlet water valve C Bin Control Check 1 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 2 Remove the front panel and louver Remove the screws securing the control box then gently pull out the control box and secure it in a safe position Remove the control box cover 3 Wipe down the BC lens with a clean warm damp cloth 4 Remove ice away from BC lens 5 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 6 Remove BC thumbscrews Check that BC red LED is on BC red LED turns on when 115VAC is supplied to BC and storage bin is empty disengaged If BC red LED is off check for 115VAC at BC BR to BC W If 115VAC is not present confirm 115VAC at control switch termi
5. Component Service fiormaltlnn aaa D A GA CE 24 1 Upper Bearing Wear Check 26 2 Removal and Replacement of Extruding Head eeeeeeeeeaaaaaaaaaaaaaaaanaca 27 3 Removal and Replacement of Auger cosmic aaa aa a a 28 4 Removal and Replacement of Evaporaior ANEN 29 5 Removal and Replacement of Mechanical Seal and Lower Housing 30 6 Removal and Replacement of Gear Motor 32 LA in ii mb a E 33 As Maifisna ce Seltedul aa GAGA AG OE ERI REPE CREMA 34 VI Preparing the Appliance for Periods of Non Use 35 1 17 m s Dn 37 Vili Technical OH b b 38 A Specification and Performance Data iii ARAR R AA RSS E AKA 38 B B ee di OG 39 LC I0IBAN CD gt FAD ERDDS mu a AG GAGA 39 2 Optional Drain Pump HS 5061 ausi eine inani a a el aaa 40 Important Safety Information Throughout this manual notices appear to bring your attention to situations which could result in death serious injury damage to the appliance or damage to property A WARNING Indicates a hazardous situation which could result in death or serious injury NOTICE Indicates a situation which could result in damage to the appliance or property IMPORTANT Indicates important information about the use and care of the appliance A WARNING The appliance should be destined only to the use for which it has been expressly conceive
6. position 15 Blow out the reservoir outlet hose using the compressed air or carbon dioxide supply 16 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 17 Reconnect the reservoir outlet hose to the reservoir then secure with the clamp Make sure all hoses are connected and secure 18 Replace the rear panel in its correct position 19 Clean the storage bin by using a neutral cleaner Rinse thoroughly after cleaning 36 VII Disposal The appliance contains refrigerant and must be disposed of in accordance with applicable national state and local codes and regulations Refrigerant must be recovered by properly certified service personnel 37 VIII Technical Information A Specification and Performance Data 1 C 101BAH DS AD ADDS SPECIFICATION SHEET AC SUPPLY VOLTAGE 115 60 1 AMPERAGE 4 0A MINIMUM CIRCUIT AMPACITY 15A MAXIMUM FUSE SIZE 15A ELECTRIC 8 WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 310 12 1 297 7 7 WATER gal 24HR gal 100 Ibs 7 7 12 11 1 12 SHAPE OF ICE Cubelet ICE QUALITY Approx 81 6 APPROXIMATE STORAGE CAPACITY 29 Ibs 13 kg Bin Control Setting 22 Ibs 10 0 kg REFRIGERANT CHARGE RT34a 3 17 oz 90g AGENCY UL OUTDOOR APPROVED cUL ETL PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR AMBIENT TEMP WATER TEMP F C F C 50 10 70 21 90 32 84 70 21 42 40 80 27 66 90 32 28 97 I
7. Aejay Aejaq oul 113 illH a Tm aj 4 Y 4 d 44 q T j i E Yd 71 1931 j EET H HOLI g m qu EG un 1311 nid uz Fac qq E 1231 ud 7 t t E TVNU341NI g die ARRA v138 103 11 1941 g 1YNYJLXI a RA 7 g l TWNOIL I Iv 348 J 7H 773 3 HOLIMS TOUL 3 v rej Z8Y83N OB weg Pf i 4 e CU JAW E 34117 gH IF 3211 Hee 440 2 Optional Drain Pump HS 5061 To Icemaker 40 VAC BK GND GR N W OPTIONAL DRAIN PUMP HS 5061 m NO REPLACEABLE PARTS DBU DBU d E SAFETY w FLOAT SWITCH BK R BK O O OQ OOOCOJJ 3 s wl X 5YDC n GR 5 LOWER UPPER n 1 2 FLOAT SWITCH 4 X3 1 CONTROL PUMP BOARD ET gt BK BLACK gt DBU D ARK BLUE IR G N R O 2 ED x2 1 W WHI
8. Defective 7 Evaporator Damaged or defective 9 Refrigerant Low charge or overcharged Refrigerant lines or components restricted 10 Water System Water leaks s iz iii isi 18 1 Float Switch a Dirty sticking See ID Float Switch Check b Defective and Cleaning 2 Inlet Water Valve a Screen or orifice clogged b Defective 3 Water Supply a Water supply off or improper water pressure 7 to 113 PSIG External water filters clogged 4 Water Control Relay a Defective 5 Time Delay Relay a Defective 1 Bin Control Infrared Sensor a Dirty lens b Defective 2 Time Delay Relay a Defective 19 lll Controls and Relays The C 101BAH C utilizes a control switch time delay relay TDR water control relay WCR and compressor relay CR to control operation A Control Switch The control switch has 3 positions OFF ICE and DRAIN a OFF All components except the optional drain pump are de energized when the control switch is in the OFF position The optional drain pump circuit remains energized when the control switch is in the OFF position b ICE When placed in the ICE position the inlet water valve energizes if upper float switch UFS is open If upper float switch UFS is closed gear motor and compressor energize c DRAIN When placed in the DRAIN position drain valve energizes draining the reservoir and evaporator B Time Delay Relay Time delay r
9. Discharge Suction Compressor 4 N S 4 lagnosis ll Sequence of Operation and Service D A Sequence of Operation Flovv Chart HO suum 031 pa onuoo ug eut ijnj ulq suado jo1 uo0 ug eut U8UM UO SI 131 jojuoo ug y Ajdwe ug pesojo SI jojuoo 110 eui U8U M USIIMS 04302 UI o N BA eui o paijddns si DYASLL uonisod NIVHC OU U SI USMS jojuoo au ueuw uonisod NIVHQ 9U1 U UDIIMS fonuo e apno eougoeje eui Wo si soueljdde mun dund up ye suwa JYAGLL nno eougoeje ou peGGnid s soueijdde ueuw OVASLL seu dwund ureig 190S SH duing ueq jeuondo A PA 18 EM 9 UI AM YoUMs e0 18ddn S4N YOUMS IO 18MO S4 Jojow 1Ee6 ND amp eje1 sw Jeun 11 13 JOJOW uej IN euondo dund ulesp qq A PA UleJp AG Josseidwuoo duoJ lonuoo utlq 9g pus6s1 s nuluo WEI pezifieue ap W4 s nuluo W4 2 dwog s nunuo dwog uo 031 Pe 58 pezib1eue 8p IND 40 031 uedo 9g 21 AM 2 AM pezibleue 8p ND s nuuoo W9 senuliuoo IND peziBieue ep AM peziBieue ep W4 senumuoo W4 senumuoo W4 2 W9 pezifieue ap dwog s nunuo dwog s nunuo dwog peziBieue W4 senunuoo AA Sjeso 14 S 06 sueis 14 21 duio3 pezi amp ieue AM pepeeoxe 4 pesop san uedo S41 pesop s n uedo 41 uedo s4n p solo S47 uedo san pesop 41 uedo s n O dnueis pepeeoxe 99S 06
10. Evacuation and Recharge R 134a 1 Attach a vacuum pump to the system Be sure the high side charging hose is connected to the field installed high side access valve IMPORTANT The vacuum level and vacuum pump may be the same as those for current refrigerants However the rubber hose and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for POE oils 2 Turn on the vacuum pump then open the high side valve on the gauge manifold Never allow the oil in the vacuum pump to flow backwards 3 Allow the vacuum pump to pull down to a 29 9 Hg vacuum Evacuating period depends on pump capacity 4 Close the high side valve on the gauge manifold 5 Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder Remember to loosen the connection and purge the air from the hose For the required refrigerant charge see the nameplate Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 latest edition be used 22 6 A liquid charge is required when charging an R 134a system Place the service cylinder on the scales if the service cylinder is not equipped with a dip tube invert the service cylinder then place it on the scales Open the high side valve on the gauge manifold 7 Allow the system to charge with liquid until the proper charge weight is met 8 Close the high side valve on the gauge manifold then cl
11. clogged water could build up in the bin and overflow leading to costly water damage e f water seeps from the base of the appliance turn off the appliance and close the water supply line shut off valve Locate and resolve the issue Failure to do so could lead to costly water damage Do not leave the appliance on during extended periods of non use extended absences or in sub freezing temperatures To properly prepare the appliance for these occasions follow the instructions in VI Preparing the Appliance for Periods of Non Use NOTICE continued Keep ventilation openings in the appliance enclosure or in the built in structure clear of obstruction Do not place objects on top of the appliance The storage bin is for ice use only Do not store anything else in the storage bin I Construction and Water Refrigeration Circuit Diagram A Construction 1 Icemaker Ice Discharge Opening Bin Control Gear Motor Protector External Overload Reset Switch Control Switch Air Cooled Condenser and 4 4 i Fen Panel Condenser Fan Motor Control Box a Louver Slope Front C 101BAH AD Shown Top Panel nlet VVater Valve Evaporator Condensate Drain Pan Evaporator Float Svvitch Assembly Water Reservoir EM Gear Motor Gear Motor Drain Pan
12. cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 1 2 3 4 Close the water supply line shut off valve Move the control switch to the DRAIN position Allow the water system to drain for 1 minute See After all of the water has drained move the control switch to the OFF position Unplug the appliance from the electrical outlet 5 6 7 8 Remove all ice from the storage bin Remove the top panel and rear panels See Fig 4 Remove the spout and packing a Remove the seal bolts securing the extruding head and evaporator flange NOTICE Discard existing seal bolts after removal Seal bolts must be replaced once removed because seal material is one time use only 9 Grasp the cutter and carefully lift out the extruding head and auger When pulling out the auger the upper part of the mechanical seal should come out with it 10 Disconnect the reservoir outlet hose from the evaporator 11 Remove the evaporator condensate drain pan 12 Install a temporary tap line valve on the high side then recover the refrigerant and store it in an approved container 13 Disconnect the inlet and outlet tubing 14 15 16 Inspect the mechanical seal and O ring prior to installing the new evaporator The mechanical seal consists of two parts One moves along with the auger and the other is fixed on the lower housing If the contact surfaces of these two parts are
13. confirming production or diagnosing lovv production see VIII A Specification and Performance Data for typical production information 2 Diagnostic Procedure This diagnostic procedure is a sequence check that allovvs you to diagnose the electrical system and components Before proceeding check for correct installation proper voltage per appliance nameplate and adequate water pressure 7 to 113 PSIG Note e When checking high voltage 115VAC always choose a white W neutral wire to establish a good neutral connection The time delay relay has 2 functions a 90 sec low water safety circuit Controlled by LFS and UFS and water control relay b 90 sec shutdown timer Controlled by bin control Optional drain pump HS 5061 has 115VAC power supply as soon as the appliance is plugged into the electrical outlet 1 Confirm the appliance is plugged into the electrical outlet supply voltage is correct per nameplate 2 Move the control switch to the DRAIN position DV Diagnosis If DV does not energize check for 115VAC at control switch terminal 3 W DBU to neutral W If 115VAC is not present check control switch continuity optional drain pump connector jumper or safety switch and power supply If 115VAC is present check DV coil continuity Replace as needed If optional drain pump is installed see II E Optional Drain Pump HS 5061 11 3 After all of the water has drained move the control switch to the OFF
14. head and evaporator flange holes See Fig 7 25 If new seal bolts do not have preapplied threadlocker apply Loctite 243 or equivalent threadlocker to seal bolts Tighten seal bolts to a torque of 11 1 ft lb 15 N m 26 Replace the packing and spout in their correct positions 27 Open the water supply line shut off valve 28 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 29 Once the appliance starts to produce ice allow it to run for another 30 minutes Check for water leaks 30 After 30 minutes move the control switch to the OFF position Unplug the appliance from the electrical outlet 31 Pour warm water into the storage bin and melt the ice Clean the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 32 Replace the rear panels and top panel in their correct positions 33 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 5 Removal and Replacement of Mechanical Seal and Lower Housing 5a Mechanical Seal 1 Close the water supply line shut off valve 2 3 4 After all of the water has drained move the control switch to the OFF position Unplug the appliance from the electrical outlet Move the control switch to the DRAIN position Allow the water system to drain for 1 minute 5 Remove all
15. out the water UFS opens nothing happens at this time LFS opens DP de energizes If water cannot be pumped out of DP due to a blocked discharge hose bad check valve or bad DP motor water level continues to rise and SFS closes DP continues and appliance de energizes Power is supplied to DP motor as long as LFS is closed For schematic see VIII B 2 Optional Drain Pump HS 5061 NOTICE e If you remove DP from the appliance be sure to follow all instructions below Failure to do so may result in costly water damage e DP has an internal check valve Do not install an external check valve Legend DP drain pump LFS lovver float switch SFS safety float switch UFS upper float switch 2 Drain Pump Check When the optional DP HS 5061 is installed test its operation at least twice a year as outlined below Note that 115VAC is at DP even when the control switch is in the OFF position 1 Move the control switch to the OFF position then unplug the appliance from the electrical outlet WARNING To reduce the risk of electric shock do not touch the control switch or plug with damp hands 2 Remove all ice from the storage bin 3 Plug the appliance back in 4 Slowly pour 24 to 30 oz 710 to 890 ml of water over the storage bin drain hole in the storage bin 5 If water pumps out properly and DP then de energizes proceed to step 6 If water does not pump out confirm 115VAC to drain pump replace as needed 6 Mov
16. then move the control switch to the ICE position to start the automatic icemaking process 27 3 Removal and Replacement of Auger 1 Close the water supply line shut off valve 2 Move the control switch to the DRAIN position 4 After all of the water has drained move the control switch to the OFF position Unplug the appliance from the electrical outlet 3 Allow the water system to drain for 1 minute 5 6 7 8 Remove all ice from the storage bin Remove the top panel See Fig 4 Remove the spout and packing Remove the seal bolts securing the extruding head and evaporator flange then grasp the cutter and lift off NOTICE Discard existing seal bolts after removal Seal bolts must be replaced once removed because seal material is one time use only 9 Grasp the auger and carefully lift out 10 When pulling out the auger the upper part of the mechanical seal should come out with it The mechanical seal consists of two parts One moves along with the auger and the other is fixed on the lower housing Inspect the part of the mechanical seal that came out with the auger If the contact suriace on the bottom of the seal is worn cracked or scratched the mechanical seal may cause water leaks and both the upper and lower parts of the mechanical seal should be replaced Instructions for removing the mechanical seal are located later in this procedure 11 Remove the mechanical seal from the old
17. worn cracked or scratched the mechanical seal may cause water leaks and should be replaced Instructions for removing the mechanical seal and lower housing are located later in this procedure Remove the socket head cap screws securing the evaporator to the lower housing Lift off the evaporator 17 Make sure the lower mechanical seal and the O ring are in place then place the evaporator assembly in position Secure the evaporator to the lower housing using the socket head cap screws 18 Replace the tap line valve with a proper permanent access valve 19 Remove the drier then place the new drier in position 20 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG 29 21 Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not use R 134a as a mixture with pressurized air for leak testing 22 Evacuate the system then charge it with refrigerant See the nameplate for the required refrigerant charge 23 Reattach and secure the reservoir outlet hose Replace the evaporator condensate drain pan and all hoses in their correct positions 24 Install the auger assembly with the upper part of the mechanical seal attached Replace the cutter extruding head and evaporator flange in their correct positions and align the extruding
18. CR compressor relay FM fan motor GM gear motor ST shutdown timer 90 sec Time Delay Relay Infrared Sensor Bin Control 115VAC BR Comp and GM W R 115VAC from Control Switch 1 115VAC to Water Control m l ay with Bin Empty and em engaged red LED on 4 B 8 2 th Full and J Engaged red LED off 8 IMG Neutral W Power Su upply from Infrared Sen id Water Control Relay 115VAC 90 sec timer BR Neutral E Terminal 2 115VAC 90 Sec Timer Power Supply 3 Neutral 5 115VAC Power Supply from Infrared Sensor and Water Control Relay when 5 P de energizes 90 sec delay timer starts when 90 sec delay timer terminates 8 BR and 9 W R contacts open 8 115VAC Power Supply for Compressor and Gear Motor 9 Compressor and Gear Motor 14 D Float Switch Check and Cleaning 1 Float Switch Check 1 Move the control switch to the DRAIN position 2 Remove the upper rear panel 3 Allow the water system to drain for 1 min 4 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 5 Remove bell connectors from FS black BK blue BU and red R wires Check continuity between black BK common and red R UFS and between black BK common and blue BU LFS If both are open continue to step 6 If either are closed follow the steps in II D 2
19. FM and CR CR then energizes Comp WV de energizes Ice production starts 4 to 6 minutes after Comp energizes depending on ambient and water conditions WCR Diagnosis Confirm WCR energizes If not confirm UFS is closed See 11 1 Float Switch Check Next check for 115VAC at WCR 8 BK to WCR 7 W If 115VAC is not present confirm UFS is closed See II D 1 Float Switch Check If 115VAC is present check that WV de energized If not check for OVAC at WCR 2 O to neutral W If 115VAC is present replace WCR Next check for 115VAC at WCR 5 W BK to neutral W and WCR 8 P to neutral W If 115VAC is not present at WCR 5 W BK to neutral W see II C Bin Control Check If 115VAC is present at WCR 5 W BK to neutral W and not at WCR 8 P to neutral W WCR is not energized or contacts are sticking Replace WCR If 115VAC is present at WCR 3 P to neutral W WCR is good and TDR energizes TDR Diagnosis Confirm 115VAC at TDR 2 BR and TDR 5 P to TDR 3 W If 115VAC is present at TDR 2 BR and not at TDR 5 P see WCR Diagnosis above If 115VAC is present at TDR 2 BR and TDR 5 P to TDR 3 W and GM does not start check for 115VAC at TDR 8 BR and TDR 9 W R to neutral W If 115VAC is present at TDR 8 BR and not at TDR 9 W R replace TDR GM Diagnosis Check that GM energizes If not check for 115VAC at GM If 115VAC is not present check GM external protector on front of control box If
20. Float Switch Cleaning After cleaning FS check UFS and LFS again Replace if necessary 6 Cap the FS appliance wires Black BK red R and blue BU 7 Plug the appliance into the electrical outlet then move the control switch to the ICE position 8 Once the reservoir overflows move the control switch to the OFF position then unplug the appliance from the electrical outlet 9 Check continuity between black BK common and red R UFS and between black BK common and blue BU LFS If either are open follow the steps in II D 2 Float Switch Cleaning After cleaning FS check UFS and LFS again Replace if necessary 10 Reconnect FS wires to the appropriate appliance wires Black BK to black BK red R to brown BR and blue BU to blue BU 11 Replace upper rear panel in its correct position 12 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process Legend FS float switch LFS lower float switch UFS upper float switch 2 Float Switch Cleaning Depending on local water conditions scale may build up on FS Scale on FS can cause inconsistent operation of UFS and LFS In this case FS should be cleaned and checked 1 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 2 Remove the upper rear panel 3 Remove FS assembly from the reservoir cover 4 Wipe do
21. Hoshizaki America Inc Self Contained Cubelet Models C 101BAH C I0IBAH DS C I0IBAH AD C I0IBAH ADDS SERVICE MANUAL A Superior Degree of Reliability www hoshizaki com Number 73195 Issued 7 19 2013 A WARNING Only qualified service technicians should install and service the appliance To obtain the name and phone number of your local Hoshizaki Certified Service Representative visit www hoshizaki com No service should be undertaken until the technician has thoroughly read this Service Manual Failure to service and maintain the appliance in accordance with this manual will adversely affect safety performance component life and warranty coverage and may result in costly water damage Proper installation is the responsibility of the installer Product failure or property damage due to improper installation is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the appliance Should the reader have any questions or concerns which have not been satisfactorily addressed please call send an e mail message or write to the Hoshizaki Technical Support Department for assistance Phone 1 800 233 1940 770 487 2331 Fax 1 800 843 1056 770 487 3360 E mail techsupport hoshizaki com HOSHIZAKI AMERICA INC 618 Highway 74 South Peachtree City GA 30269 Attn Hoshizaki Technical Support Department Web Site w
22. ING Only qualified service technicians should service the appliance NOTICE During extended periods of non use extended absences or in sub freezing temperatures follow the instructions below to reduce the risk of costly water damage 1 Move the control switch to the OFF position WARNING To reduce the risk of electric shock do not touch the control switch or plug with damp hands 2 Close the water supply line shut off valve then open the water supply line drain valve 3 Allow the line to drain by gravity 4 Move the control switch to the DRAIN position 5 Allow the water system to drain for 1 min 6 Attach a compressed air or carbon dioxide supply to the water supply line drain valve 7 Move the control switch to the ICE position 8 Blow the water supply line out using the compressed air or carbon dioxide supply 9 Close the water supply line drain valve 10 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 11 Remove the screws securing the upper rear panel then remove it See Fig 8 12 Remove the clamp securing the reservoir outlet hose to the reservoir Disconnect the reservoir outlet hose from the reservoir 13 Attach a compressed air or carbon dioxide supply to the reservoir outlet hose Upper Rear Panel Fig 8 14 Plug the appliance back in then move the control switch to the DRAIN
23. auger and place it on the new auger 12 Install the new auger 13 Replace the extruding head with cutter and evaporator flange in their correct positions Confirm the cutter is tight See Fig 7 14 If new seal bolts do not have preapplied threadlocker apply Loctite 243 or equivalent threadlocker to seal bolts Tighten to a torque of 11 1 ft Ib 15 N m 15 Replace the packing and spout in their correct positions 16 Open the water supply line shut off valve 17 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 18 Once the appliance starts to produce ice allow it to run for another 30 minutes Check for water leaks 19 After 30 minutes move the control switch to the OFF position Unplug the appliance from the electrical outlet 20 Pour warm water into the storage bin and melt the ice Clean the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 21 Replace the top panel in its correct position 22 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 28 4 Removal and Replacement of Evaporator NOTICE Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repair or replacement has been made When brazing protect the drier by using a wet
24. bs day kg day 100 38 25 49 APPROXIMATE ELECTRIC 70 21 CONSUMPTION 80 27 90 32 watts 100 38 APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32 gal day m day 100 38 Evaporator Outlet 70 21 80 27 90 32 100 38 HEAD PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 1850 BTU h AT 90 F 32 C WT 70 F 21 C 38 JOJOW 1299 pue JOSSDIdLUOJ 6 10 0IN 1299 pue Joss31dWOJ 40 Aiddns 4 DVASLL 8 uado S 2E U02 H M 6 pue ug 8 saeur euin Aejap 29s 06 UBYM 814835 18uun Aejap Das 06 sezib1eue op d e UBUM Aejay 104302 1972M pue JOSU2S paJe1ju LUO Aiddne 4 JYAGLL S JeanaN A ddns 18 Mog J8UI 29S 06 DYAS L L Z 241 B Wiring Diagrams 101BAH DS AD ADDS 1 W Aejay 40SU paJeJJu LU 01 U0 1832 pue ou Adding 2VAS d 5 HO q31 pa pebebu3 10suas ale pue uig UMM 2VA0 Z M 5 H d uo q31 pebebuesiq 10suas 5 pue duq ulg yum Aejay ug Daun 285 06 DVAS LL Tn g Se 4 M W9 pue due 4 illH UPIIMS ORUOJ uo JY GL L 8 DVASLL 3018 7 043005 Uig 10su9s Doip Uu
25. cleaner Rinse thoroughly after cleaning 31 28 Replace the upper rear panel and top panel in their correct positions 29 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 6 Removal and Replacement of Gear Motor NOTICE Hoshizaki recommends that the gear motor capacitor be replaced at the same time as the gear motor 1 Close the water supply line shut off valve 2 Move the control switch to the DRAIN position 3 Allow the water system to drain for 1 minute 4 After all of the water has drained move the control switch to the OFF position then unplug the appliance from the electrical outlet 5 Remove all ice from the storage bin 6 Remove the top panel and upper rear panel See Fig 4 7 Remove the bolts securing the lower housing to the gear motor Lift the evaporator up slightly 8 9 10 11 12 13 14 15 Remove the bolts securing the gear motor Disconnect the gear motor wires then remove the gear motor Attach the spline coupling from the old gear motor to the new gear motor Install the new gear motor Lower the evaporator onto the gear motor Secure the lower housing to the gear motor Reconnect the electrical wires Open the water supply line shut off valve Nm Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the auto
26. d Any other use should be considered improper and therefore dangerous The manufacturer cannot be held responsible for injury or damage resulting from improper incorrect and unreasonable use Failure to service and maintain the appliance in accordance with this manual will adversely affect safety performance component life and warranty coverage and may result in costly water damage To reduce the risk of death electric shock serious injury or fire follow basic precautions including the following Only qualified service technicians should install and service the appliance The appliance must be installed in accordance with applicable national state and local codes and regulations The appliance requires an independent power supply of proper capacity See the nameplate for electrical specifications Failure to use an independent power supply of proper capacity can result in a tripped breaker blown fuse damage to existing wiring or component failure This could lead to heat generation or fire THE APPLIANCE MUST BE GROUNDED The appliance is equipped with a NEMA 5 15 three prong grounding plug I to reduce the risk of potential shock hazards It must be plugged into a properly grounded independent 3 prong wall outlet If the outlet is a 2 prong outlet it is your personal responsibility to have a qualified electrician replace it with a properly grounded independent 3 prong wall outlet Do not remove the ground prong from the
27. e a temporary tap line valve on the high side to recover the refrigerant Store the refrigerant in an approved container Do not discharge the refrigerant into the atmosphere After recovery is complete replace the tap line valve with a proper permanent access valve 21 2 Brazing A WARNING R 134a itself is not flammable at atmospheric pressure and temperatures up to 212 F 100 C R 134a itself is not explosive or poisonous However when exposed to high temperatures open flames R 134a can be decomposed to form hydrofluoric acid and carbonyl fluoride both of which are hazardous Do not use silver alloy or copper alloy containing arsenic 1 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG NOTICE Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repair or replacement has been made Install the new drier with the arrow on the drier in the direction of the refrigerant flow When brazing protect the drier by using a wet cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 2 Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not use R 134a as a mixture with pressurized air for leak testing 3
28. e the control switch to the ICE position 7 Pour another 24 to 30 oz 710 to 890 ml of water into the appliance s storage bin then completely restrict the discharge hose while DP is operating See Fig 3 Pour more water into the appliance s storage bin until the appliance turns off DP will continue to operate Check for leaks v Rear Panel 8 Remove the discharge hose restriction and p s oki allow the water to be pumped out normally FEI Power returns to the appliance when SFS opens L_ Vent Hose Fig 3 9 If the appliance fails to turn off with the discharge hose restricted or the pump fails to pump out the water replace DP Legend DP drain pump SFS safety float switch Discharge Hose Lower Rear Panel 17 F Diagnostic Tables 1 No Ice Production 1 Power Supply 2 Optional Drain Pump HS 5061 3 Control Switch 4 Bin Control Infrared Sensor 5 Water Control Relay 6 Inlet Water Valve 7 Water Supply a Float Switch and Cleaning 3 Gear Motor a Gear motor external protector 2 4 3 0A tripped b Gear motor internal protector open or windings open Bad gear motor capacitor o Locked bearings Spline coupling or gear broken and auger not turning e 4 Fan Motor Fan blade does not move freely o Defective 5 Compressor Relay Defective 6 Compressor Compressor internal protector tripped PTC relay defective ii Inefficient
29. elay energizes once 115VAC is supplied to time delay relay 5 P Time delay relay contacts close between time delay relay 8 BR and time delay relay 9 W R energizing gear motor fan motor and compressor When bin control engages 115VAC is removed from time delay relay 5 P and 90 sec delay timer starts When 90 sec delay timer terminates gear motor fan motor and compressor de energize C Water Control Relay The water control relay is controlled by the float switch The water control relay energizes when the reservoir is full and the upper float switch closes The water control relay de energizes when the reservoir lowers and the lower float switch opens When energized the time delay relay energizes if BC is closed and the inlet water valve de energizes When de energized the time delay relay de energizes and the inlet water valve energizes 20 IV Refrigeration Circuit and Component Service Information A WARNING This appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire Move the control switch to the OFF position then unplug the appliance from the electrical outlet before servicing CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after the appliance is serviced Make sure that none have fallen into the storage bin Make sure all food zones in the icemaker and sto
30. es If not check for 115VAC at WCR 2 O to neutral W If 115VAC is not present replace WCR If 115VAC is present check WV solenoid continuity Replace as needed Confirm UFS closes and WCR energizes within 90 sec of WV energizing If not confirm that water supply is on Once UFS closes WCR energizes energizing TDR and resetting FT If FT is exceeded Comp FM and GM de energize Check that TDR energizes after WCR energizes Check for 115VAC at TDR 5 P to neutral W If 115VAC is not present at TDR 5 P to neutral W confirm WCR status If 115VAC is present at TDR 5 P to neutral W and Comp CR FM and GM de energized replace TDR FT Diagnosis 90 sec low water safety If UFS does not close within 90 sec of LFS opening FT terminates and TDR de energizes GM FM CR and Comp Components remain off until UFS closes If components continue longer than 90 sec with UFS open replace TDR If GM and FM de energize but Comp continues check CR contacts for sticking Replace as needed 10 Shutdown bin full lce fills storage bin to level high enough to engage BC opens TDR 5 P de energizes ST 90 sec starts Once ST 90 sec terminates Comp CR FM and GM de energize Components remain off until ice level drops low enough to dis engage BC BC Diagnosis Check for 115VAC at WCR 5 W BK to neutral W If 115VAC is present BC is not engaged closed and red LED is on Move an object hand in front of BC sensor
31. for leakage around seal bolts Tighten 11 1 ft Ib 15 N m or replace as necessary Seal bolts must be replaced once removed Cutter because seal material is one time use only If new seal bolts do not have preapplied threadlocker apply Loctite 243 or Packing equivalent threadlocker to seal bolt threads Spout ke Evaporator Flange tej Extruding Head and _ Evaporator Upper Bearing Condensate H S Drain Pan Evaporator Reservoir Outlet Auger Hose Connection Vinyl Cap __ ting Retainer Mechanical Seal Socket Head O Ring Cap Screw with Washer Hex Head Bolt with fi Wee Housing and Lower Bearing n l Coupling Gear Motor __ Socket Head Cap Screw with Washer TUI T Fig 5 ET L A 1 Upper Bearing Wear Check To ensure that the bearing inside the extruding head does not exceed the wear tolerance of 02 follow the instructions below 1 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 2 Remove all ice from the storage bin 3 Remove the top panel See Fig 4 4 Remove the spout and packing 5 Remove the cutter 6 Grasp the top of the auger and
32. ice from the storage bin 6 Remove the top panel and upper rear panel See Fig 4 7 Remove the spout and packing 8 Remove the seal bolts securing the extruding head and evaporator flange NOTICE Discard existing seal bolts after removal Seal bolts must be replaced once removed because seal material is one time use only 30 9 Grasp the cutter and carefully lift out the extruding head 10 Grasp the auger and carefully lift it out When pulling out the auger the upper part of the mechanical seal should come out with it 11 Remove the socket head cap screws securing the evaporator to the lower housing 12 Raise the evaporator up to access the lower housing 13 The mechanical seal consists of two parts One moves along with the auger and the other is fixed on the lower housing If the contact surfaces of these two parts are worn cracked or scratched the mechanical seal may cause water leaks and should be replaced 14 Remove the mechanical seal from the housing If only replacing the mechanical seal proceed to step 17 NOTICE To help prevent water leaks be careful not to damage the surfaces of the O ring or mechanical seal 5b Lower Housing 15 Remove the O ring and the bolts securing the lower housing to the gear motor and remove the housing from the gear motor If inspection of the upper bearing inside the extruding head see IV B 1 Upper Bearing Wear Check indicates that it is out of tolerance replace both i
33. losing the door Be careful when opening and closing the door when children are in the area Do not use combustible spray or place volatile or flammable substances near the appliance They might catch fire Keep the area around the appliance clean Dirt dust or insects in the appliance could cause harm to individuals or damage to the appliance NOTICE Protect the floor when moving the appliance to prevent damage to the floor Follow the water supply drain connection and maintenance instructions carefully to reduce the risk of costly water damage In areas where water damage is a concern install in a contained area with a floor drain e Install the appliance in a location that stays above freezing Normal operating ambient temperature must be within 45 F to 100 F 7 C to 38 C e f using the optional drain pump HS 5061 test its operation every time the appliance is cleaned and sanitized See II E 2 Drain Pump Check for details If the optional drain pump is not operating properly water could back up and overflow leading to costly water damage f water collects in the bin and will not drain turn off the appliance and close the water supply line shut off valve Locate and resolve the issue To help ensure that the storage bin drain remains clear follow the storage bin drain instructions in the instruction manual once every 3 months or as often as necessary for conditions If the storage bin drain becomes
34. matic icemaking process 16 Once the appliance starts to produce ice check for water leaks 17 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 18 Pour warm water into the storage bin and melt the ice Clean the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 19 Replace the upper rear panel and top panel in their correct positions 20 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 32 V Maintenance The appliance must be maintained in accordance with the instruction manual and labels provided Consult with your local Hoshizaki Certified Service Representative about maintenance service A WARNING Only qualified service technicians should service the appliance To reduce the risk of electric shock do not touch the control switch with damp hands Before Servicing Move the control switch to the OFF position Unplug the appliance from the electrical outlet to prevent the power supply from being turned back on inadvertently CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after any maintenance is done to the appliance Make sure that none have fallen into the storage bin Do not place fingers or any other objects into the ice discharge opening After service make sure that there are no wires pinched be
35. move the auger towards you and then try to insert a 02 round stock or pin gauge in between the back side of the auger shaft and the bearing surface See Fig 6 Check several locations around the auger shaft If the gauge goes between the shaft and the bearing at any point or if the bearing is scratched or cracked both the top bearing in the extruding head and the lower bearing in the housing should be replaced Instructions for removing the extruding head and housing are located later in this procedure Note Replacing the bearing requires a bearing press adaptor If one is not available replace the entire extruding head and housing 7 Replace the removed parts and panel in the reverse order of which they were removed 8 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 02 Round Stock or Pin Gauge Extruding Head 26 2 Removal and Replacement of Extruding Head 1 Close the water supply line shut off valve 2 3 4 5 Move the control switch to the DRAIN position Allow the water system to drain for 1 minute Remove all ice from the storage bin o After all of the vvater has drained move the control svvitch to the OFF position Unplug the appliance from the electrical outlet 6 7 8 9 Remove the top panel See Fig 4 Remove the spout and packing Loosen the cutter do not remove
36. nal 1 BR to neutral W If 115VAC is present at BC and BC red LED is off confirm BC is not engaged If BC is disengaged and BC red LED is off replace BC Next with BC red LED on move an object hand in front of BC lens BC red LED turns off If not replace BC 7 Place BC in its original position and secure with thumbscrews Let appliance run until Comp CR FM and GM energize After components energize use an object to cover BC lens BC red LED turns off and ST 90 sec starts 90 sec later ST 90 sec terminates Components de energize Diagnosis 90 sec after covering BC lens if the components remain energized check for 115VAC at WCR 5 W BK to neutral W If 115VAC is present and BC red LED is off replace BC If 115VAC is not present check for 115VAC at TDR 9 W R to neutral W If 115VAC is present replace TDR Note If in refill at time of shutdown WV remains energized until UFS closes Once UFS closes WCR energizes de energizing WV During off cycle WCR remains energized 8 Remove the object hand covering BC lens 9 Move the control switch to the OFF position then unplug the appliance from the electrical outlet 10 Replace the control box control box cover and front panel and louver in their original positions 11 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process Legend BC bin control Comp compressor
37. ose the refrigerant access valve if applicable Disconnect the gauge manifold hose 9 Cap the refrigerant access valve to prevent a possible leak 23 B Component Service Information NOTICE When replacing a component listed below see the notes to help ensure proper operation When replacing evaporator assembly and water circuit components make sure there are no water leaks after the repair is complete Component 1808 0 Extruding Head Seal bolts must be replaced once removed because seal material is one time use only f new seal bolts do not have preapplied threadlocker apply Loctite 243 or equivalent threadlocker to seal bolt threads e Tighten down the new seal bolts to a torque of 11 1 ft lb 15 N m e Install a new drier and PTC relay Upper and e Inspect the upper bearing for wear See IV B 1 Upper Bearing Wear Check Replace if Lower Bearings necessary When replacing the upper bearing it is advised to also change the lower bearing at the same time Evaporator Install a new drier e Inspect the mechanical seal and O ring prior to installing the new evaporator If worn cracked or scratched the mechanical seal should also be replaced Gear Motor Install a new gear motor capacitor Upper Rear Panel ___ C 101BAH AD Shown Evaporator Assembly Thumbscrew T M m Seal Bolts Inspect
38. position then unplug the appliance 4 Remove the front panel louver and upper and lower rear panels 5 Remove the screws securing the control box then gently pull out the control box and secure it in a safe position Remove the control box cover 6 Plug the appliance back into the electrical outlet 7 Startup Fill Cycle Move the control switch to the ICE position With LFS and UFS open WV energizes Reservoir fills LFS closes Nothing happens at this time Reservoir continues to fill until UFS closes Diagnosis Check that reservoir fills If not check water supply line shut off valve water filters and WV screen Next check for 115VAC at WV If 115VAC is not present at WV check for 115VAC at WCR 8 BK to WCR 7 W If 115VAC is present confirm UFS is open See II D 1 Float Switch Check If 115VAC is not present check WCR 2 O to neutral W and 6 BR to neutral W If 115VAC is not present at WCR 6 BR to neutral W check control switch position and continuity Also check wire connections to WCR If 115VAC is present at WCR 6 BR to neutral W and not present at WCR 2 O to neutral W replace WCR If 115VAC is present at WCR 2 O to neutral W check WV solenoid continuity If open replace WV Fill Cycle Complete Check that UFS closes when reservoir is full If not check FS See II D 1 Float Switch Check 8 Freeze Cycle UFS closes and energizes WCR WCR energizes TDR TDR then energizes GM
39. power cord and do not use an adapter plug Failure to properly ground the appliance could result in death or serious injury e Do not use an extension cord To reduce the risk of electric shock do not touch the control switch or plug with damp hands Make sure the control switch is in the OFF position before plugging in or unplugging the appliance Do not use an appliance with a damaged power cord The power cord should not be altered jerked bundled weighed down pinched or tangled Such actions could result in electric shock or fire To unplug the appliance be sure to pull the plug not the cord and do not jerk the cord Do not make any alterations to the appliance Alterations could result in electric shock injury fire or damage to the appliance A WARNING continued Do not place fingers or any other objects into the ice discharge opening The appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Young children should be properly supervised around the appliance Do not climb stand or hang on the appliance or appliance door or allow children or animals to do so Serious injury could occur or the appliance could be damaged Be careful not to pinch fingers when opening and c
40. rage bin are clean after service A Refrigeration Circuit Service Information A WARNING Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA certified service personnel Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not use R 134a as a mixture with pressurized air for leak testing NOTICE Always recover the refrigerant and store it in an approved container Do not discharge the refrigerant into the atmosphere Do not leave the system open for longer than 15 min when replacing or servicing parts The Polyol Ester POE oils used in R 134a applications can absorb moisture quickly Therefore it is important to prevent moisture from entering the system when replacing or servicing parts Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repair or replacement has been made Install the new drier with the arrow on the drier in the direction of the refrigerant flow When brazing protect the drier by using a wet cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 1 Refrigerant Recovery No refrigerant access valves are provided on this appliance Using proper refrigerant practices utiliz
41. t and the bearing inside the lower housing Note Replacing the bearing requires a bearing press adaptor If one is not available replace the entire extruding head and housing 16 Mount the lower housing onto the gear motor then install the O ring onto the lower housing 17 Install the lower part of the mechanical seal onto the lower housing 18 Lower the evaporator down and secure it to the lower housing 19 Install the auger assembly with the upper part of the mechanical seal attached Replace the cutter extruding head and evaporator flange in their correct positions Align the evaporator flange holes with the extruding head holes See Fig 7 20 If new seal bolts do not have preapplied threadlocker apply Loctite 243 or equivalent threadlocker to seal bolts Tighten new seal bolts to a torque of 11 1 ft Ib 15 N m 21 Tighten the cutter on the auger 22 Replace the packing and spout in their correct positions 23 Open the water supply line shut off valve 24 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process 25 Once the appliance starts to produce ice allow it to run for another 30 minutes Check for water leaks 26 After 30 minutes move the control switch to the OFF position Unplug the appliance from the electrical outlet 27 Pour warm water into the storage bin and melt the ice Clean the storage bin liner using a neutral
42. te Drain Pan and Gear Motor Drain Pan Extruding Head Inspect for leakage around seal bolts Tighten see torque value below or Seal Bolts replace as necessary Seal bolts must be replaced once removed because seal material is one time use only If new seal bolts do not have preapplied threadlocker apply Loctite 243 or equivalent threadlocker to seal bolt threads Torque 11 1 ft Ib 15 N m Pump HS 5061 External Water Check for proper pressure and change if necessary the water supply inlet screen Inspect Clean if necessary Inspect the water hoses and clean replace if necessary Upper Bearing Check for wear using 02 round stock or pin gauge Replace both upper extruding head bearing and lower bearing if wear exceeds factory recommendations See IV B 1 Upper Bearing Wear Check Upper Bearing Inspect Replace both upper bearing and lower bearing if wear exceeds extruding head factory recommendations Replace the mechanical seal if the seal s contact then Yearly Lower Bearing surfaces are worn cracked or scratched and O Ring lower housing Mechanical Seal Evaporator Oylinder Auger 34 VI Preparing the Appliance for Periods of Non Use During extended periods of non use extended absences or in sub freezing temperatures follow the instructions below When the appliance is not used for two or three days under normal conditions it is sufficient to move the control switch to the OFF position A WARN
43. tripped reset If it does not reset replace GM external protector Once reset if GM does not energize check GM windings internal protector and GM capacitor If GM starts but the auger does not turn check coupling between auger and GM FM Diagnosis Check that FM energizes If not check for 115VAC at FM red R wire to neutral W If 115VAC is not present check wiring connections from TDR and GM If 115VAC is present and FM is 12 not energized check FM windings and fan blade for binding CR Comp Diagnosis Check for 115VAC at CR 8 R to neutral W If 115VAC is not present check wiring connections from TDR and GM If 115VAC is present check for 115VAC at CR 3 BR and CR 5 R to neutral W If 115VAC is present on CR 3 BR and not at CR 5 R replace CR If 115VAC is present at CR 5 R check Comp PTC and Comp winding 9 Refill Low Water Safety As ice is produced the water level in the reservoir drops UFS opens nothing happens at this time LFS opens and refill begins WCR de energizes TDR de energizes FT 90 sec starts WV energizes Comp FM and GM continue LFS closes nothing happens at this time UFS closes WCR energizes TDR energizes and FT resets WV de energizes If FT terminates before UFS closes Comp CR FM and GM de energize and WV remains energized until UFS closes Refill Diagnosis Check that WCR de energizes If not see II D 1 Float Switch Check Once WCR de energizes confirm WV energiz
44. tween the panels and appliance Make sure you do not damage or pinch the water supply line drain line or power cord 33 A Maintenance Schedule The maintenance schedule below is a guideline More frequent maintenance may be required depending on water quality the appliance s environment and local sanitation regulations Maintenance Schedule fFrequency Area 2 Weekly Clean the scoop using a neutral cleaner Rinse thoroughly after cleaning Monthly Drain the Appliance Move the control switch to the DRAIN position Allow the water system to drain for 1 minute Clear ice away from the infrared sensor lens Move the control switch to the ICE position After the gear motor starts move the control switch to the DRAIN position Allow the water system to drain for 1 minute Move the control switch to the ICE position to start the automatic icemaking process Appliance Exterior Wipe down with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up Clean any chlorine staining rust colored spots using a non abrasive cleanser Storage Bin Drain Maintain as outlined in the instruction manual Months Infrared Sensor Wipe down with a clean soft cloth and warm water Lens Every 6 Icemaker and Clean and sanitize per the cleaning and sanitizing instructions provided in Months Storage Bin the instruction manual Evaporator Wipe down with clean cloth and warm water Condensa
45. wn FS assembly with a mixture of 1 part Hoshizaki Scale Away and 25 parts warm water Rinse the assembly thoroughly with clean water 5 While not necessary the floats can be removed from the shaft during cleaning If you remove them note that the blue float is on top UFS and the white float is on bottom LFS See Fig 2 The floats must be installed with the magnets inside them towards the top of the switch Installing the floats upside down will affect the timing of FS operation 15 6 Rinse FS assembly thoroughly with clean water and replace in its correct position 7 Replace the upper rear panel in its correct position 8 Plug the appliance into the electrical outlet then move the control switch to the ICE position to start the automatic icemaking process Legend FS float switch LFS lower float switch UFS upper float switch Float Switch Assembly Reservoir Cover m Z Reservoir Fig 1 Red R upper float svvitch p Black BK common ALI Blue BU lower float switch Magnet towards top Upper Float blue Spring Retainer Clip Magnet towards top Lower Float white Plastic Retainer Cli I p Fig 2 16 E Optional Drain Pump HS 5061 Overview As ice melts water drains from the storage bin into DP LFS closes Nothing happens at this time UFS closes DP energizes and pumps
46. ww hoshizaki com NOTE To expedite assistance all correspondence communication MUST include the following information e Model Number e Serial Number Complete and detailed explanation of the problem IMPORTANT This manual should be read carefully before the appliance is serviced Read the warnings and guidelines contained in this manual carefully as they provide essential information for the continued safe use service and maintenance of the appliance Retain this manual for any further reference that may be necessary CONTENTS Important Safety Information ROPNE 4 I Construction and Water Refrigeration Circuit Diagram 2 7 7 LIMIE esn ms EEE z 2 ICS Elle Et e TE 8 3 Waler Retrigeration Circuit DISOCAITI io EE 9 Il Sequence of Operation and Service Diagnose 10 A Sequence of Operation Flow Chart aaa ARA RAR AO 10 B Service Ree 11 ICO Check E 11 2 Diagnostic PROCS EE 11 Kee 14 D Float Switch Check and Cicanin 15 1 Float Switch Check E 15 2 EIBALOMIOMCIEANNO wana H RA 15 E Optional Drain Pump Gb 17 e r rr b l 17 2 Drain PUMP qr 17 A Diagnostic TEE 18 ili Controls NN 20 Mee 20 B Time Delay Felay ad AA i GA 20 C Water Control Relay iieri OD pas 20 IV Refrigeration Circuit and Component Service JIntormaton 2 21 A Refrigeration Circuit Service Information 21 B
Download Pdf Manuals
Related Search