Service Manual
Contents
1. 115 120 60 1 sc GR Xi GEAR MOTOR RELAY SC BK 9 COMPRESSOR RELAY e dio 0 a 2 i L RELAY BR Xo CONTROL RELAY D SAFETY RELAY e GIO FEL BR 7 v EP EXTERNAL PROTECTOR Y W ru X1 EP IP CY S1 POWER SWITCH py WBR BK 5 FLUSH SWITCH SD 53 BIN CONTROL SWITCH UAE BR RK DV FLUSH VALVE ES EIE PRESSURE SWITCH W HPS HIGH PRES 0 D 4 CH CONTROL BOARD BR 35 FH EVAPORATOR FENDER 3012 Y i CT SC START CAPACITOR SR START RELAY OU GEAR MOTOR CAPACITOR m C CONTROL TRANSFORMER LBU 2 199 Leu E da Bk 35 W BK As S LIGHTBLUE 6 2 MODEL LBU P PC 70 5 E YELLOW W70 Mi 1 WH E BLACK W R RUM 522 y 16 LBU WIR WHITE RED WAR IR 35 W LBU RIR R 543 MB MJ W R 5 WIR jV wo Doy 43 HPS CB W R a 20 LBU x BR aay DEN DBU Q we ut p P o5 CM High Pressure Switch 426 PSIG a 34122 PSIG il 47 F 3302. Bin Control The switch actuator is located in the ice storage bin Ice Storage Bin Control Box Spout Evaporator Heater Inlet Water Valve C Model Evaporator Reservoir Flush Drain Valve Compressor Spout Safety Switch 1b F 330BAH C Auxiliary Code C 1 and Later Control Box Bin Control The switch actuator is located in the ice storage bin Ice Storage Bin Spout Inlet Water Valve Evaporator Heater C Model Evaporator BLEU Reservoir Drain Valve Ice Making Appliance 1 F 330BAH C Cutter tor Heater Model Extruding Head Upper Bearing vaporator Heater C Model Seal Bolt Auger 1 Oylinder Insulation Mechanical Seal O Ring Socket Head Cap Screw Housing Lower Bearing and Split Lock Washer Hex Bolt and Washer Spline Coupling Gear Motor Water Refrigeration Circuit Diagram Spout Inlet Water Valve gt Water Supply 19 Heater C Model ixi E Float Switch Water Level dc lt __ N Reservoir Overflow To Drain Flush Drain Valve Gear Motor Drier Capillary Tube Condenser Fan Motor High Pressure Switch Compressor Refrigeration Circuit EE Water Circuit 10 l
3. ELAY REL AC E T TROL E T TROL TRANSFORME TERNAL ECT E LOAT SWITCH E T ATOR HIGH PRESSURE SWITCH TERNAL ECT TART CAPACIT TART RELA ER SWITCH TROL SWITCH TROL SWITCH LET WATER VALVE IN VALVE E TOR REL E EL TROL RELA TE L REL E ELAY REL High Pressure Switch 426 2 PSIG 341 22 PSIG L E BK l ra F E BI 115 1 dos E LE e pel F LE F BK 8l LF E Ea ide Eq Ju a LP 49
4. IND senunuoo dwog AM mue duu keep Gules USE OO pepeeoxe Jeuun 295 06 Peels Jeuumn 295 06 INS Ajayes e pezibieue ap IND 295 06 pesojo 54 uedo 541 pezifueue dwog pesop s4fn senunuoo AM uedo san peso 47 uedo 4 senunuoo W9 pesop S41 AM lt lt un no 555614 986 06 301 ut uos 1 1 YOUMS I MOA i pepeeoxe 4 7295 06 1 1 1 1 pue sugs 177777777 rc i peneiuoe 11494 sensa ae Sa i Mayes MOT 1 uoum 14008 91040 2 z 1 1 sdeis 2042 1 1 PEDE m e2uenbes 2 Hvgoce J 11 Service Diagnosis A WARNING The 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 or auger can crush and cut Keep hands clear CHOKING HAZARD Ensure all components fasteners and thumbscrews securely in place after the appliance is serviced Make sure that none have fallen into the
5. If 35VDC is present replace X12 relay If OVDC is present and Comp does not energize replace See Control Board Check On C models EH energizes when X12 relay energizes If not check for 24VAC at X12 relay 5 W R to neutral LBU Next check for 24VAC at X12 relay 3 P to neutral LBU If 24 is present on X12 relay 5 W R and not on X12 relay 3 P replace X12 relay 6 Freeze Cycle GM X12 relay and EH C model continue Comp and FM energize X11 relay energizes and de energizes as needed through LFS UFS Ice production begins 4 to 6 minutes after Comp and FM start depending on ambient and water conditions Diagnosis Check that Comp and FM energize If not check for 115VAC at CB X2 relay 4 BR to neutral W and CB X2 relay 3 BK to neutral W If 115VAC is present at CB X2 relay 4 BR and not at CB X2 relay 3 BK replace CB If 115VAC is present at CB X2 relay 3 BK and Comp and FM do not energize for Comp check Comp winding start capacitor and start relay For FM check FM windings and fan blade for binding 7 Refill Low Water Safety Cycle As is produced water level in the reservoir drops UFS opens nothing happens at this time LFS opens and refill begins X11 relay de energizes low water safety circuit opens X11 relay 4 DBU and 6 BR and CB 3 BR and 4 DBU CB 90 sec low water safety timer starts WV energizes Comp FM GM and X12 relay continue UFS must clo
6. sticking Replace as needed If 24VAC is present check DV coil continuity If open replace DV HPS Diagnosis Check that the condenser air filter and coil are not clogged or restricted Check that there are no restrictions in the refrigeration circuit capillary tube or drier Let refrigeration circuit pressures equalize If HPS does not reset and pressures are equalized replace HPS If pressures are not equalized reclaim refrigerant and diagnose refrigeration circuit restriction 4 Startup Fill Cycle Move any ice away from the BC actuator paddle located at the top of the bin Move the control switch to the ICE position X10 relay and WV energize Reservoir fills LFS closes nothing happens at this time The reservoir continues to fill X10 Relay Diagnosis Check that WV energizes and fills the reservoir If not confirm BC is closed See Bin Control Check Confirm control switch is in the ICE position and switch is closed Next check for 24VAC at X10 relay 7 V to X10 relay 8 LBU If 24VAC is present check for 24VAC at X10 relay 5 to neutral Next check for 24VAC at X10 relay 3 R to neutral LBU If 24VAC is present at 5 and not at 3 replace X10 relay If 24 is present on X10 relay 3 check X11 relay X11 Relay Diagnosis Check for 24VAC at X11 relay 5 R to neutral LBU Next check for 24VAC at X11 relay 1 to neutral LBU If 24VAC is present at X11 relay 5 and
7. B to the bin then remove spout B See Fig 3 4 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if applicable See Fig 3 5 Loosen the cutter with a wrench and remove it 6 7 8 Place the new extruding head in place then place and tighten down the new seal bolts Tighten seal bolts to 11 1 ft lb 15 N m 9 Replace the evaporator heater C model cutter and spouts in their correct positions If applicable make sure the safety switch components are in position See Fig 3 Remove the evaporator heater C model Remove the seal bolts and lift off the extruding head 10 Plug the appliance into the electrical outlet then move the power switch to the ON position 11 Replace the panels in their correct positions 33 4 Removal and Replacement of Auger 1 Remove the front panel then move the flush control switch to the FLUSH or DRAIN position 2 After 2 min move the power switch to the OFF position then unplug the appliance from the electrical outlet 3 Remove the top panel and top insulation panel 4 Remove the thumbscrews attaching spout B to the bin then remove spout B See Fig 3 5 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if applicable See Fig 3
8. CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE P C BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION GEAR MOTOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED OPERATING CONDITIONS 115 60 1 7 4A 104 F WT 80 F N A N A WATER TENP F 5 70 9 320 145 300 136 290 132 275 125 265 120 250 114 240 109 230 104 220 100 210 95 200 91 190 86 Cubelet Approx 90 Ice 90 70 F Conductivity 200 us cm 80 165 90 70 70 50 650 6 7 607 4 5 28 12 38 12 24 x 26 x 33 610 x 660 x 838 mm Galvanized Steel Rear Bottom Stainless Steel Top Front Side Net 147 Ibs 67 kg Shipping 178 Ibs 81 kg Cord Connection Inlet 1 2 FPT Drain 3 4 FPT Auger type Direct Driven Auger 80W Gear Motor Float Switch N A Mechanical Bin Control Proximity Sw Hermetic Model NF7CLX Air Cooled Fin and Tube Type Copper Tube on Cylinder Capillary Tube R 404A 7 102 2000 High 470 PSIG Low 230 PSIG High Voltage Cut Off Relay Auto Reset Overload Protector Manual Reset Circuit Breaker Auto Reset High Pressure Control Switch Float Switch and Timer Ice Scoop Legs Spare Fuse VOLTAGE RANGE 104 127 AMBIENT TEMP 45 100 F WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG 43 Performance Data Sheet 1 F 330BAH APPROXIMATE Ambient ICE PRODUCTION Temp
9. Evaporator 7 Religeran Charge 8 Drain Valve 9 Water System 10 Evaporator Heater model 1 Float Switch a Dirty sticking See Float Switch Check b Defective and Cleaning 2 Inlet Water Valve Screen or orifice clogged b Defective 3 Water Supply Water supply off or improper water pressure 10 to 113 PSIG ojo v 5 Fan Motor External water filters clogged 4 X4 Relay 0 and earlier or a Defective X11 Relay C 1 and later 5 Control Board a Defective See II C Control Board Check 1 Bin Control a Proximity switch stuck closed See 11 0 Bin Control Check b Actuator paddle does not move freely a 2 X5 Relay C 0 and earlier or a Defective X10 Relay C 1 and later 3 Control Board Defective Control Board Check Shutdown Drain Cycle 1 X3 Relay 0 and earlier or a Defective X12 Relay C 1 and later 2 X5 Relay C 0 and earlier or Defective X10 Relay C 1 and later 3 X4 Relay 0 and earlier a Defective X11 Relay C 1 and later Control Board Check 5 Drain Valve 22 4 Control Board a Defective a Controls and Relays The F 330BAH C is controlled by a control board and 5 relays X1 and X2 relays located on the control board and control GM Comp and FM operation X10 X11 and X12 relays are independent relays located in the control box X10 relay cont
10. To expedite assistance all correspondence communication MUST include the following information Model Number 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 sale TA An 5 Construction and Water Refrigeration Circuit Diagram 7 A 7 F 330BAH C Auxiliary Code 0 and 7 1b F 330BAH C Auxiliary Code C 1 and 8 Ble Maki ADDA TERR 9 WaterBelrigerallon Circuit Diagram agi A Ra GR 10 Sequence of Operation and Service 11 Sequence of Operation Flow Bj 11 B Service Diagnosis e TR 12 Production Check 12 2a Diagnostic Procedure Auxiliary Code 0 and Earlier 12 2b Diagnostic Procedure Auxiliary Code C 1 and 15 Bassa NNI 18 D Bi OMA Ol i e A d 18 E Float Switch
11. 6 Loosen the cutter with a wrench 7 Remove the seal bolts securing the extruding head Using the cutter lift out the auger assembly 8 Remove the cutter and extruding head from the auger and place them on the new auger 9 Install the new auger assembly NOTICE Seal bolts must be replaced once removed because seal material is one time use only Loctite 243 must be applied to seal bolt threads when seal bolts are replaced Tighten seal bolts to 11 1 16 15 N m 10 Replace the removed parts in the reverse order of which they were removed If applicable make sure the safety switch components are in position See Fig 3 11 Move the flush control switch to the ICE position Plug the appliance into the electrical outlet then move the power switch to the ON position 12 Replace the panels in their correct positions 34 5 Removal and Replacement of Evaporator IMPORTANT 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 1 Remove the front panel Move the flush control switch to the FLUSH or DRAIN position 2 After 2 min move the power switch to the OFF position then unplug the appliance from the electrical outlet 3 Recover the refrigerant and store it in an approved container 4 Remove the top panel and top insulation panel 5 Remove the thumbscrews attaching spout B to the bin
12. CF 50 70 90 PER 24 HR 70 80 Ibs day kg day APPROXIMATE ELECTRIC APPROXIMATE WATER CONSUMPTION PER 24 HR al day l day EVAPORATOR OUTLET TEMP F C HEAD PRESSURE PSIG kg cm G SUCTION PRESSURE PSIG kg cm G TOTAL HEAT OF REJECTION 3800 BTU h AT 90 F WT 70 F 44 2 APPROXIMATE Water Temp F ICE PRODUCTION PER 24 HR lbs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day l day EVAPORATOR OUTLET TEMP F CC HEAD PRESSURE PSIG kg cm G SUCTION PRESSURE 36 2 6 39 2 8 42 3 0 kg cm G 3 2 45 X 3 2 TOTAL HEAT OF REJECTION 3800 AT 90 F 70 F 45 C Wiring Diagrams 1a F 330BAH C Label Diagram Auxiliary Code C 0 and Earlier 8 L b C MODEI CHEATER N _ FADEN M B INTERNAL LAMI n BO _ PPM BK E LB LB NP R oo
13. Check and Cleaning usada aestu 19 HDs eR ce 544612 e I nanna 19 2 Float E 19 EDISON A a RA 21 a eee enor re renee eee 23 23 B Control Board 24 25 RS TT EET 25 DE ru NO 25 25 IV Refrigeration Circuit and Component Service 26 A Refrigeration Circuit Service Information 26 B Component Service InfOFbfi amp lblofic 77 29 1 Upper Bearing Wear Check 1 1 2 4 6 32 2 Removal and Replacement of 33 Removal and Replacement of Extruding 33 4 Removal and Replacement of Auger essere 34 5 Removal and Replacement of 35 6 Removal and Replacement of Mechanical Seal and Lower Housing 36 7 Removal and Replacement of Gear 27 VMA NS R M 38 Maintenance SENU sasssa 39 VI Preparing the Appliance for Periods of 0 40 IPS 41 VIII
14. Relay Diagnosis Check for 24VAC at X4 relay 5 R to neutral LBU and at 1 O to neutral LBU If 24VAC is present at X11 relay 5 R and not at 1 O confirm X4 relay is de energized If X4 relay is energized check for sticking UFS See Float Switch Check and Cleaning If X4 relay is de energized replace X4 relay WV Diagnosis If 24VAC is present at X4 1 O check WV coil continuity If open replace WV Ice Purge Cycle UFS closes X4 relay energizes WV de energizes and low water safety circuit CB 3 and 4 closes GM and relay energize 60 sec Comp delay timer starts If HPS is open CB does not get 24VAC control voltage and 35VDC supply is not present for low water safety circuit HPS Diagnosis If HPS is open check that the condenser air filter and coil are not clogged or restricted Check that there are no restrictions in the refrigeration circuit capillary tube or drier Let refrigeration circuit pressures equalize If HPS does not reset and pressures are equalized replace HPS If pressures are not equalized reclaim refrigerant and diagnose refrigeration circuit restriction X4 Relay Diagnosis Check for 35VDC at X4 relay 4 DBU to 6 BR If 35VDC is present X4 relay is de energized or bad Replace as necessary If OVDC is present GM energizes GM Diagnosis If GM does not energize and OVDC is read at CB 3 BR to CB 4 DBU check for 115VAC at CB 7 BR to neutral W and CB 8 W BR to neutral
15. Technical 42 A Specification Saal uuo 42 a H er 42 43 B Performance Data 5 44 44 eae ee eee aR BA Un 45 46 1 F 330BAH C Label Diagram Auxiliary Code 0 and Earlier 46 1b F 330BAH C Ladder Diagram Auxiliary Code C 0 and Earlier 47 2a F 330BAH C Label Diagram Auxiliary Code C 1 and Later 48 2b F 330BAH C Ladder Diagram Auxiliary Code C 1 and Later 49 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 WARNING The appliance should be destined only to the use for which it has been expressly conceived Any other use should be considered improper and therefore dangerous The manufacturer cannot be held responsib
16. i n MEL BI 1 a 1 RAE 6 t MOTO LB B V ITCH oe ry BE FUSE L8U INTE TE T L 4 EE START RELAY T patat SAFETY A SES PROTECTOR BI FLUSH LB p SWITCH IRE L ODE un n n 7 B Br HI BK BLACI ti PRE zum BLUE e eje eon 4 Le JE EE B V B RBLAY X T os e B ERLAY X PIN 6 R R P FLUSH VIOLET ALVE WHITE es a R YELLOW P B WHITE BLACI BR WHITE BROI LB 3U WHITE BLUE t WHITE ANGE Vu WHITE RE wan NT 1 HE Jul a UTE LB Laut BR BR DB B ab W _ RELAY X4 T T H aR B BOARI INLET WATE AL 0 l D LB s 4 High Pressure Switch COMPRESSOR RELA DELAY RELA Cut out 426 PSIG 21 Cut in 341 22 PSIG 46 1b F 330BAH C Ladder Diagram Auxiliary Code 0 and Earlier
17. is produced water level in the reservoir drops UFS opens nothing happens at this time LFS opens and refill begins X4 relay de energizes low water safety circuit opens X4 relay 4 DBU and 6 BR and CB 3 BR and 4 DBU CB 90 sec low water safety timer starts WV energizes Comp FM GM and X3 relay continue UFS must close before 90 sec low water safety timer terminates Otherwise shutdown cycle is initiated Once UFS closes X4 relay energizes WV de energizes and low water safety circuit closes terminating 90 sec low water safety timer Diagnosis Check that WV energizes If not confirm LFS status open X4 relay de energized If not see step 5 above 8 Shutdown Ice fills ice storage bin and presses BC actuator to open BC Comp FM GM and X3 relay continue X5 relay and X4 relay de energize 90 sec low water safety timer starts When 90 sec low water safety timer terminates Comp and FM de energize GM and X3 relay continue 60 sec GM delay timer starts Once 60 sec GM delay timer terminates GM and X3 relay de energize DV energizes Reservoir and evaporator drain DV remains energized until BC closes again Diagnosis Check that BC actuator paddle is activated and not sticking Confirm BC is open and X5 relay de energizes If not see II D Bin Control Check Next confirm X4 relay de energizes If not check 24VAC at X5 relay 3 R to neutral LBU If 24 is present replace X5 relay If X4 re
18. not at 1 confirm X11 relay is de energized If X11 relay is energized check for sticking UFS See Float Switch Check and Cleaning If X11 relay is de energized replace X11 relay WV Diagnosis If 24VAC is present on X11 relay 1 check WV coil continuity If open replace WV 15 5 Ice Purge Cycle UFS closes X11 relay energizes WV de energizes and low water safety circuit CB 3 and 4 closes GM and X12 relay energize 60 sec Comp delay timer starts X11 Relay Diagnosis Check for 35VDC at X11 relay 4 DBU to 6 BR If 35VDC is present X11 relay is de energized or bad Replace as necessary If OVDC is present GM energizes GM Diagnosis If GM does not energize and OVDC is read at CB 3 BR to CB 4 DBU check for 115VAC at CB 7 BR to neutral W and CB 8 W BR to neutral W If 115VAC is present on CB 7 BR and not on CB 8 W BR replace CB If 115VAC is present on CB 8 W BR check GM external protector and GM winding If GM starts but the auger does not turn check coupling between auger and GM X12 Relay Diagnosis X12 relay energizes and starts 60 sec Comp delay timer in CB CB 10 W BK and 11 W O After 60 sec timer terminates confirm Comp energizes If not check for 115VAC at X12 relay 7 to X12 relay 8 W If 115VAC is not present check GM external protector and GM winding internal protector If 115 VAC is present check for 35VDC at X12 relay 4 W BK to X12 relay 6 W O
19. not present see 2 Diagnostic Procedure If 24VAC is present check for 35VDC at CB 3 to CB 4 CB 5 to CB 6 and CB 10 to 11 If 35VDC is not present on a circuit replace CB 2 Move the power switch to the OFF position then unplug the appliance Reconnect the wires to their correct positions on CB Plug the appliance into the electrical outlet then move the power switch to the ON position Relay Diagnosis Once UFS closes relay energizes X4 0 and earlier or X11 C 1 and later CB 3 BR and CB 4 DBU close CB 7 BR and CB 8 W BR close GM energizes If not replace CB Once GM energizes X3 0 and earlier or X12 C 1 and later relay energizes closing CB 10 W BK and CB 11 W O circuit and starting 90 sec Comp delay timer When 90 sec Comp delay timer terminates CB X2 relay energizes energizing Comp If not replace CB Legend CB control board Comp compressor GM gear motor UFS upper float switch X4 0 and earlier or X11 C 1 and later water control relay X3 C 0 and earlier or X12 C 1 and later compresser delay relay D Bin Control Check 1 Remove the front top and rear panels 2 Move the power switch to the OFF position 4 5 6 Check continuity across BC connector terminals If BC actuator is not engaged BC is closed If not replace BC 7 Press and hold BC actuator paddle located at the top of the ice storage bin While BC actuator is engaged check continuity acr
20. replace CB Next confirm DV energizes If not check for 24VAC at X12 relay 5 W R to neutral LBU and X12 relay 1 V to neutral LBU If 24VAC is present at X12 relay 5 W R and not at 1 V replace X12 relay If 2AVAC is present at X12 relay 1 V and DV is not energized check for 24VAC at X10 relay 6 W BK to neutral LBU and X10 relay 2 V to neutral LBU If 24VAC is present at X10 relay 2 V and not at 46 W BK replace X10 relay If 24 is present check DV coil continuity and replace as necessary If DV coil is good check for crimped drain hose or clogged drain line Legend BC bin control CB control board Comp compressor CT control transformer DV drain valve FM fan motor GM gear motor HPS high pressure switch LFS lower float switch UFS upper float switch WV inlet water valve X10 control relay X11 water control relay X12 compressor delay relay Control Board Check Before replacing a control board that does not show a visible defect and that you suspect is bad always conduct the following check procedure This procedure will help you verify your diagnosis 1 Startup Move the power switch to the OFF position then unplug the appliance Access CB and remove the wires from CB 3 4 5 6 10 and 11 Plug the appliance back in Confirm the flush control switch is in the ICE position then move the power switch to the ON position Check for 24VAC at CB 1 W R to CB 2 LBU If 24VAC is
21. 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 Using proper refrigerant practices recover the refrigerant Recover via the access valves Store the refrigerant in an approved container Do not discharge the refrigerant into the atmosphere 26 2 Brazing WARNING R 404A itself is not flammable at atmospheric pressure and temperatures up to 176 F 80 C R 404A itself is not explosive or poisonous However when exposed to high temperatures open flames R 404A 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 d
22. 5 three prong grounding plug 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 power cord and do not use an adapter plug Failure to properly ground the appliance could result in death or serious injury Do not make any alterations to the appliance Alterations could result in electric shock injury fire or damage to the appliance WARNING continued Do not use an extension cord 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 The GREEN ground wire in the factory installed power cord is connected to the appliance If it becomes necessary to remove or replace the power cord be sure to connect the power cord s ground wire 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
23. BAH C Label Diagram Auxiliary Code C 1 and Later IRE L E BLACI BLUE D LUE L L LIGHT BLUE EN B Au ET WHT E WHITE WHITE BLACI UHITE HITE BLUE WHITE ANGE TROL EVA HEATE WHITE RE TRANSFORME R L LB W V5 ALVE FUSE PN us L rth TART Pain CONTROL BIOL gru 7 e TROL ICE CLOSE B SWITCH ORKIN OPE E FA T L 4 515 ri 2 ddl 4 z EXTERNAL TECT xHi PRESS ITCH FLOAT SR RIN qo 1 ITCH a oor 14 r1 L i LS 1 LE 2 ee E L INLET TE ALVE LB EL ELA High Pressure Switch TROL RELA WATE TROL RELA 426 0 PSIG aie UP 34122 PSIG 48 2b F 330BAH C Ladder Diagram Auxiliary Code C 1 and Later IRE COL BLACI BLUE L LIGHT LET ELACI E ELJE E ORANGE E RE cE TOR RELA ELA RELA
24. Hoshizaki America Inc Self Contained Flaker Models F 330BAH C SERVICE MANUAL A Superior Degree of Reliability www hoshizaki com Number 73151 Issued 8 2 2007 Revised 4 22 2013 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 www hoshizaki com NOTE
25. Ibs 70 70 3 1290 132 280 127 270 123 2 90 70 70 50 606 5 8 562 4 1 30 12 38 12 24 x 26 x 33 610 x 660 x 838 Galvanized Steel Rear Bottom Stainless Steel Top Front Side Net 147 Ibs 67 kg Shipping 178 Ibs 81 kg Cord Connection Inlet 1 2 FPT Drain 3 4 FPT Auger type Direct Driven Auger 80W Gear Motor Float Switch N A Mechanical Bin Control Proximity Sw Hermetic Model NF7CLX Air cooled Fin and tube type Copper Tube on Cylinder Capillary Tube R 404A 7 102 2009 High 470 PSIG Low 230 PSIG High Voltage Cut Off Relay Auto Reset Overload Protector Manual Reset Circuit Breaker Auto Reset High Pressure Control Switch Float Switch and Timer Ice Scoop Legs Spare Fuse VOLTAGE RANGE 104 127 V AMBIENT TEMP 45 100 WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG 42 2 AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE QUALITY APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 Ibs POTABLE WATER gal 24HR gal 100 Ibs EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN ICE MAKING SYSTEM HARVESTING SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR
26. W If 115VAC is present on CB 7 BR and not on CB 8 W BR replace CB If 115VAC is present on CB 8 W BR check GM external protector and GM winding If GM starts but the auger does not turn check coupling between auger and GM X3 Relay Diagnosis X3 relay energizes and starts 60 sec Comp delay timer in CB CB 10 W BK and 11 W O After 60 sec timer terminates confirm Comp energizes If not check for 115VAC at relay 7 R to relay 8 W If 115VAC is not present check GM external protector and GM winding If 115VAC is present check for 35VDC at relay 4 W O to relay 6 W BK If 35VDC is present replace X3 relay If OVDC is present and Comp does not energize replace CB See Control Board Check 6 Freeze Cycle GM and X3 relay continue Comp and FM energize X4 relay energizes and de energizes as needed through LFS UFS Ice production begins 4 to 6 minutes after Comp and FM start depending on ambient and water conditions Diagnosis Check that Comp and FM energize If not check for 115VAC at CB X2 relay 4 BR to neutral and CB X2 relay 3 to neutral If 115VAC is present at CB X2 relay 4 BR and not at CB X2 relay 3 replace CB If 115VAC is present at CB X2 relay and Comp and FM not energize for Comp check Comp winding start capacitor and start relay For FM check FM windings and fan blade for binding 7 Refill Low Water Safety Cycle As
27. agnosis ll Sequence of Operation and Service D A Sequence of Operation Flow Chart pue 1 9 10 ZL X pue OLX pue pue 0 2 JO GX pue eui sezif1eue urejp usni eui umop sinus Jexeujeo eui pue suado ueuMw uedo Jeye pue 2 pue OLX pue pue 0 2 JO GX pue EX eui urep usnii si uonisod NIVHG 10 YOYMS onuoo usni eui ueuw uonisod NIVHG 10 HSf114 Ul Jonuo2 usni4 senuiuoo W9 senumuoo W4 Yous eo jeddn s4n INH dwog dwog YMS 647 99 peziBjeue uedo 4 III 1 O Josseidwoo dwog p1eoq jo1u02 g5 28 pu 7 I YBLU II HO 249 eBung peziBieue ep AM senunuoo pezi amp ieue AM dwog W4 AM senunuoo dwog senunuoo W9
28. ce the cutter in its correct position 8 Replace the spouts in their correct positions If applicable make sure the safety switch components are in position See Fig 3 9 Plug the appliance into the electrical outlet then move the power switch to the ON position 10 Replace the panels in their correct positions 32 2 Removal and Replacement of Cutter 1 Remove the front panel Move the power switch to the OFF position then unplug the appliance from the electrical outlet 2 Remove the top panel and top insulation panel 3 Remove the thumbscrews attaching spout B to the bin then remove spout B See Fig 3 4 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if applicable See Fig 3 5 Loosen the cutter with a wrench and remove it 6 Install the new cutter 7 Replace the spouts in their correct positions If applicable make sure the safety switch components are in position See Fig 3 8 Plug the appliance into the electrical outlet then move the power switch to the ON position 9 Replace the panels in their correct positions 3 Removal and Replacement of Extruding Head 1 Remove the front panel Move the power switch to the OFF position then unplug the appliance from the electrical outlet 2 Remove the top panel and top insulation panel 3 Remove the thumbscrews attaching spout
29. ck or pin gauge Replace both upper extruding head bearing and lower bearing if wear exceeds factory recommendations Upper Bearing Inspect Replace both upper bearing and lower bearing if wear exceeds extruding head 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 39 VI Preparing the Appliance for Periods of Non Use NOTICE When storing the appliance for an extended time or in sub freezing temperatures follow the instructions below to prevent damage When the appliance is not used for two or three days under normal conditions it is sufficient to move the power switch to the OFF position When storing the appliance for extended time or in sub freezing temperatures follow the instructions below 1 Run the appliance with the potable water supply line shut off valve closed Allow the appliance to make ice until it stops automatically 2 Open the potable water supply line drain valve and blow the line out using compressed air or carbon dioxide 3 Remove the front panel and move the flush control switch to the FLUSH or DRAIN position to drain out the remaining water from the appliance 4 After the water has drained move the power switch to the OFF position and unplug the appliance 5 Replace the front panel in its correct positio
30. d starts the 90 sec Comp delay timer 35VDC circuit at CB 10 W BK and 11 W O and on C 1 and later models energizes the evaporator heater 5 W R and 3 P during the icemaking process When de energized relay allows for DV operation during off cycles This prevents DV from energizing during the icemaking process X6 C 0 and earlier Relay energizes when safety switch closes de energizing X5 relay and energizing lamp until the safety switch is reset opened Legend BC bin control CB control board Comp compressor DV drain valve EH evaporator heater FM fan motor GM gear motor UFS upper float switch WV inlet water valve D Switches 2 switches are used to control the operation of the appliance These switches are referred to as the power switch and flush control switch They are located on the control box 1 Power Switch The power switch has 2 positions OFF and ON 2 Flush Control Switch The flush control switch has 2 positions Flush Switch 0 and Earlier ICE and FLUSH Control Switch C 1 and Later ICE and DRAIN In the ICE position X5 0 and earlier or X10 C 1 and later relay is energized DV is de energized and the icemaking process begins In the FLUSH or DRAIN position X5 C 0 and earlier or X10 C 1 and later is de energized and flush drain valve is energized 90 sec shutdown sequence starts if moved from ICE with power switch ON 25 IV Refrigeration Circuit and C
31. e This appliance must be maintained in accordance with the instruction manual and labels provided Consult with your local Hoshizaki Certified Service Representative about maintenance service WARNING Only qualified service technicians should service the appliance To reduce the risk of electric shock do not touch the appliance power switch or flush control switch with damp hands Before Servicing Move the appliance s power switch to the OFF position Turn off the power supply 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 ice storage bin 38 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 Clean the ice scoop using a neutral cleaner Rinse thoroughly after cleaning Bi Weekly Air Filters Inspect Wash with warm water and neutral cleaner if dirty Monthly External Water Check for proper pressure and change if necessary Filters Icemaker Exterior Wipe down with clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up Clean any chlorine stainin
32. e or tripped breaker b Not within specifications 2 Water Supply a Water supply off or improper water pressure 10 to 113 PSIG b External water filters clogged 3 Power Switch OFF position 4 Control Transformer a Coil winding open or shorted 115V 24V 5 5 Safety Switch 0 and earlier a Engaged Reset b Defective 6 X6 Relay safety relay a Defective C 0 and earlier 7 Fuse Bin Contr See II D Bin Control Check b Defective 9 Flush Control Switch a In FLUSH 0 and earlier or DRAIN C 1 and later position b Defective 10 X5 Relay C 0 and earlier or a Defective X10 Relay C 1 and later 11 Evaporator Heater a C 0 and earlier Defective C model X11 Relay C 1 and later 2 Inlet Water Valve Startup Ice Purge Cycle reservoir full 1 Float Switch Float does not move freely a Float Switch Check b Defective and Cleaning 2 High Pressure Switch Dirty air filter or condenser Condenser fan motor defective Refrigerant overcharge Refrigerant lines or components plugged 3 Control Board Defective 3 and 4 Control Board Check X11 Relay C 1 and later 5 Gear Motor No Ice Production Possible Cause Freeze Cycle Control Board Check X12 Relay C 1 and later 5 Start Rlay Capacitor 4 Compressor Open motor windings Open motor windings 5
33. e 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 29 Spout Assembly C 0 and Earlier i Thumbscrew bm RSS Safety Bracket A Spout B Safety Bracket B Thumbscrew amp Safety Switch Spout Assembly C 1 and Later Spout B Thumbscrew Fig 3 30 Evaporator Assembly Evaporator ope a C Model Upper Bearing pressed into Flaker Upper Bearing pressed into extruding head extruding head C Extruding Head Extruding os Auger Packing Inspect for leakage around seal bolts Tighten 11 1 ft lb 15 N m or replace as necessary Seal bolts must be replaced once removed because seal material is one time use only Loctite 243 must be applied to seal bolt threads when seal bolts are replaced Evaporator Mechanical Seal uuu ORing Bc Flange Seal Bolts 2 2 Socket Head Screws and Split Lock Washer O Ring Lower Bearing Hex Bolt and Washer pressed into lower housing AL Socket Head Cap Screw and Split H 1 Lock Washer 4 i Fig 4 T Lower Housing Hex Bolt and Washer Spline Coupling Socket Head Cap Screw and S
34. ect per nameplate 2 Remove the front panel 3 Confirm the power switch is in the ON position then move the flush switch to the FLUSH position DV Diagnosis If DV does not energize check for 24VAC at X6 relay 5 BK to neutral LBU and at X6 relay 1 W O to neutral LBU If 24VAC is present at 5 BK and not at 1 W O X6 relay is energized safety switch closed or contacts sticking Replace as needed If 24VAC is present at X6 relay 1 W O and DV does not energize check for 24VAC at X5 relay 6 W O to neutral LBU If 24VAC is not present X5 relay is energized or contacts are sticking Replace as needed If 24VAC is present check DV coil continuity If open replace DV 4 Startup Fill Cycle Move any ice away the BC actuator paddle located at the g top of the bin Move the flush switch to the ICE position X5 relay and WV energize Reservoir fills LFS closes nothing happens at this time The reservoir continues to fill X5 Relay Diagnosis Check that WV energizes and fills the reservoir If not confirm BC is closed Bin Control Check Confirm flush switch is in the ICE position and switch is closed Next check for 24VAC at X5 7 V to X5 relay 8 LBU If 24VAC is present check for 24VAC at X5 relay 5 W R to neutral LBU and at 3 R to neutral LBU If 24VAC is present at 5 W R and not at 3 R replace X5 relay If 24VAC is present at X5 relay 3 R check X4 relay X4
35. eding check for correct installation adequate water supply minimum of 10 PSIG maximum of 113 PSIG and proper voltage per appliance nameplate Check that the 24VAC 1A fuse is good and GM external protector is closed When checking for high voltage 115VAC always choose a white W neutral wire to establish a good neutral connection When checking for low voltage Secondary 24VAC always choose a light blue LBU neutral wire to establish a good neutral connection Note DV energizes when BC opens On C model EH energizes when X12 relay energizes 1 Confirm the appliance is plugged into the electrical outlet supply voltage is correct per nameplate 2 Remove the front panel 3 Confirm the power switch is in the ON position then move the control switch to the DRAIN position DV Diagnosis If DV does not energize check for 24VAC at HPS red wire to neutral LBU and HPS white red W R wire to neutral LBU If 24VAC is not present on HPS red R wire to neutral W check CT continuity Replace if open If 24VAC is present on HPS red R wire and not on HPS white red W R wire HPS is open If 24VAC is present at HPS white red W R and DV does not energize check for 24VAC at X12 relay terminal 1 V If 24VAC is not present X12 relay is energized or contacts are sticking Replace as needed If 24VAC is present check for 24VAC at X10 relay 6 W BK If 24VAC is not present X10 relay is energized or contacts
36. g rust colored spots using a non abrasive cleaner Every 6 Icemaker and Clean and sanitize per the cleaning and sanitizing instructions on the Months Storage Bin appliance or in the instruction manual Evaporator Wipe down with clean cloth and warm water Slowly pour one cup of Condensate Drain sanitizing solution prepare as outlined in the sanitizing instructions on the Pan and Gear appliance or in the instruction manual into the evaporator condensate drain Motor Drain Pan pan Be careful not to overflow the pan The solution will flow down to the gear motor drain pan and out the drain line to sanitize these areas Repeat with a cup of clean water to rinse Icemaker Storage Check to make sure they are clear Bin and Drains Extruding Head Inspect for leakage around seal bolts Seal Bolts Tighten 11 1 ft Ib 15 N m or replace as necessary Seal bolts must be replaced once removed because seal material is one time use only Loctite 243 must be applied to seal bolt threads when seal bolts are replaced Yearly Inlet Water Valve Close the water supply line shut off valve and drain the water system Clean and Drain Valve the inlet water valve screen and clean and inspect the drain valve Inspect the water hoses and clean replace if necessary Condenser Inspect Clean if necessary by using a brush or vacuum cleaner Icemaker Inspect for oil spots loose components fasteners and wires Upper Bearing Check for wear using 02 round sto
37. gerant charge 18 Replace the removed parts in the reverse order of which they were removed If applicable make sure the safety switch components are in position NOTICE Seal bolts must be replaced once removed because seal material is one time use only Loctite 243 must be applied to seal bolt threads when seal bolts are replaced Tighten seal bolts to 11 1 ft Ib 15 N m 35 19 Move the flush control switch to the ICE position Plug the appliance into the electrical outlet then move the power switch to the ON position 20 Replace the panels in their correct positions 6 Removal and Replacement of Mechanical Seal and Lower Housing 6a Mechanical Seal 1 Remove the front panel Move the flush control switch to the FLUSH or DRAIN position 2 After 2 min move the power switch to the OFF position then unplug the appliance from the electrical outlet 3 Remove the top panel and top insulation panel 4 Remove the thumbscrews attaching spout B to the bin then remove spout B See Fig 3 5 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if applicable 6 Remove the seal bolts securing the extruding head Using the cutter lift out the auger assembly 7 The mechanical seal consists of two parts One moves along with the auger and the other is fixed on the lower housing If the co
38. ice storage bin Make sure all food zones in the icemaker and ice storage bin are clean after service 1 Ice Production Check To check production prepare a bucket or pan to catch the ice and a set of scales to weigh the ice After the appliance has operated for 10 to 20 minutes catch the ice production for 10 minutes Weigh the ice to establish the batch weight Multiply the batch weight by 144 for the total production in 24 hours When confirming production or diagnosing low production reference production information to the performance data charts found in VIII B Performance Data Sheet 2a Diagnostic Procedure Auxiliary Code C 0 and Earlier This diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components Before proceeding check for correct installation adequate water supply minimum of 10 PSIG maximum of 113 PSIG and proper voltage per appliance nameplate Check that the 24VAC 1A fuse is good safety switch is open and GM external protector is closed When checking for high voltage 115VAC always choose a white W neutral wire to establish a good neutral connection When checking for low voltage secondary 24VAC always choose a light blue LBU neutral wire to establish a good neutral connection Note DV energizes when BC opens On C model EH energizes when X12 relay energizes 1 Confirm the appliance is plugged into the electrical outlet supply voltage is corr
39. instruction concerning use of the appliance by a person responsible for their safety Children should be properly supervised around this appliance Do not climb stand or hang on the appliance or allow children or animals to do so Serious injury could occur or the appliance could be damaged 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 Follow the instructions in this manual 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 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 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 C Preparing the Appliance for Periods of Non Use Do not place objects on top of the appliance The ice storage bin is for ice use only Do not store anything else in the ice storage bin Construction and Water Refrigeration Circuit Diagram A Construction F 330BAH C Auxiliary Code C 0 and Earlier
40. lay is de energized after 90 sec confirm Comp and FM de energize If not check for 35VDC at CB 3 BR to CB 4 DBU If OVDC is present replace X4 relay If 35VDC is present and Comp and FM remain energized replace CB 60 sec after Comp and FM de energize confirm that GM and X3 relay de energize If not replace CB Next confirm DV energizes If not check for 24VAC at X5 relay 6 W O to neutral LBU If 24VAC is not present check for 24VAC at X5 relay 2 W R to neutral LBU If 24VAC is present at X5 relay 2 W R and not at 6 W O replace X5 relay If 24VAC is present at X5 relay 6 W O to neutral LBU and DV is not energized check for 24VAC at X5 relay 6 W O to X3 relay 5 LBU and X5 6 W O to relay 1 Y If 24VAC is present at relay 5 LBU and not at 1 Y replace X3 relay If 24VAC is present check DV coil continuity and replace as necessary If DV coil is good check for crimped drain hose or clogged drain line Legend BC bin control CB control board Comp compressor CT control transformer DV drain valve FM fan motor GM gear motor HPS high pressure switch LFS lower float switch UFS upper float switch WV inlet water valve X3 compressor delay relay X4 water control relay X5 control relay X6 safety relay 2b Diagnostic Procedure Auxiliary Code C 1 and Later This diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components Before proce
41. le 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 this appliance The appliance must be installed in accordance with applicable national state and local codes and regulations Failure to meet these code requirements could result in death electric shock serious injury fire or damage to the appliance To reduce the risk of electric shock do not touch the appliance power switch or plug with damp hands Make sure the appliance power switch is in the OFF position before plugging in or unplugging the appliance Before servicing move the power switch to the OFF position Unplug the appliance from the electrical outlet 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 fuses 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 1
42. move them note that the blue float is on top UFS and the white float is on bottom LFS The floats must be installed with the magnets inside them towards the top of the switch See Fig 2 Installing the floats upside down will affect the timing of FS operation 7 Rinse the float switch assembly thoroughly with clean water and replace in its correct position 8 Replace the rear and top panels in their correct positions 9 Plug the appliance into the electrical outlet then move the power switch to the ON position to start the automatic icemaking process 10 Replace the front panel in its correct position Legend FS float switch LFS lower float switch UFS upper float switch Float Switch Assembly Reservoir Cover ee EE Reservoir Fig 1 Red R upper float switch Black BK ii common ALI Dark Blue DBU lower float switch Magnet towards top Upper Float blue Spring Retainer Clip Magnet towards top Lower Float white Plastic Retainer Cli ILL p Fig 2 20 Diagnostic Tables Before consulting the diagnostic charts check for correct installation proper voltage per appliance nameplate and adequate water supply Check control board using the steps in Control Board Check 1 No Ice Production No Ice Production Possible Cause 1 Power Supply a Unplugged off blown fus
43. n 6 Close the potable water supply line drain valve 7 Remove all ice from the storage bin and clean the bin 40 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 41 VIII Technical Information A Specification Sheet 1 AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE QUALITY APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W KWH 100 Ibs POTABLE WATER gal 24HR gal 100 Ibs EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN ICE MAKING SYSTEM HARVESTING SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE P C BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION GEAR MOTOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED OPERATING CONDITIONS 115 60 1 6 7A AT 104 F WT 80 F N A N A Ambient WATER TEMP F Temp F 90 255 116 250 114 235 107 100 230 104 20 100 205 93 Approx 80 Ice 90 70 F Conductivity 200 80
44. ntact surfaces of these two parts are worn cracked or scratched the mechanical seal may cause water leaks and should be replaced 8 Remove the socket head cap screws securing the evaporator to the lower housing 9 Raise the evaporator up to access the lower housing 10 Remove the mechanical seal from the housing If only replacing the mechanical seal proceed to step 12 A WARNING To help prevent water leaks be careful not to damage the surfaces of the O ring or mechanical seal 6b Lower Housing 11 Remove the O ring and the bolts securing the 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 it and the bearing inside the lower housing Note Replacing the bearing requires a bearing press adaptor If one is not available replace the whole extruding head and housing Install the O ring and mount the lower housing on the gear motor Install the lower part of mechanical seal on the lower housing Lower the evaporator down and secure it to the lower housing Install the auger assembly with the upper part of the mechanical seal attached 12 13 14 15 SS 36 16 Replace the removed parts in the reverse order of which they were removed If applicable make sure the safety switch components are in position 17 Move the flush control s
45. omponent Service Information 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 power 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 ice storage bin Make sure all food zones in the icemaker and ice storage bin are clean after service A Refrigeration Circuit Service Information 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 404A 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 404A applications can absorb moisture quickly Therefore it is important to prevent moisture from entering the system when
46. oss BC If BC actuator is engaged BC is open If not replace BC Disconnect the BC connector located at the back of the appliance 3 Unplug the appliance from the electrical outlet Move ice away from the BC actuator in the bin 8 Reconnect BC connector 9 Plug the appliance into the electrical outlet then move the power switch to the ON position Confirm the flush control switch is in the ICE position to start the automatic icemaking process Legend BC bin control Float Switch Check and Cleaning 1 Float Switch Check 1 Remove the front panel then move the flush control switch to the FLUSH DRAIN position 2 After 3 min move the power switch to the OFF position then unplug the appliance from the electrical outlet 3 Remove the top and rear panels 4 Remove bell connectors from FS black BK blue BU and red R wires Check for open 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 5 If either are closed follow the steps in II E 2 Float Switch Cleaning After cleaning FS check UFS and LFS again Replace if necessary 5 Cap the FS appliance wires Black BK red R and white blue W BU 6 Move the flush control switch to the ICE position 7 Plug the appliance into the electrical outlet then move the power switch to the ON position 8 Once reservoir overflows move the powe
47. plit Lock Washer 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 02 Round Stock 1 Remove the front panel Move the power or Pin Gauge switch to the OFF position then unplug the appliance from the electrical outlet Auger 2 Remove top panel and top insulation panel Extruding Head 3 Remove the thumbscrews attaching spout B to the bin then remove spout B See Fig 3 4 Remove the thumbscrews attaching spout i B A and safety bracket A if applicable is to the evaporator assembly then ona remove spout A and safety bracket A Fig 5 if applicable See Fig 3 5 Loosen the cutter with a wrench and remove it 6 Grasp the top of the auger and 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 5 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 whole extruding head and housing 7 Repla
48. quid charge is required when charging R 404A system to prevent fractionation 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 If necessary add any remaining charge to the system through the low side NOTICE To prevent compressor damage use a throttling valve or liquid dispensing device to add the remaining liquid charge through the low side refrigerant shutoff valve with the icemaker running 9 Close the high and low side gauge manifold valves then disconnect the gauge manifold hoses 10 Cap the refrigerant access valves to prevent a possible leak 28 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 Compressor Install a new drier start capacitor and start relay Upper and 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 Inspect th
49. r switch to the OFF position then unplug the appliance from the electrical outlet 9 Check FS continuity again Both UFS and LFS should be closed Check for closed 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 2 Float Switch Cleaning After cleaning FS check UFS and LFS again Replace if necessary 10 Reconnect the FS wires to the appropriate appliance wires Black BK to black BK red R to red R and blue BU to white blue W BU 11 Replace the rear and top panels in their correct positions 12 Plug the appliance into the electrical outlet then move the power switch to the ON position to start the automatic icemaking process 13 Replace the front panel in its correct position 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 Remove the front panel 2 Move the power switch to the OFF position then unplug the appliance from the electrical outlet 3 If not already removed remove the top and rear panels 4 Remove FS assembly from the reservoir cover See Fig 1 5 Wipe down FS assembly with a mixture of 1 part Hoshizaki Scale Away and 25 parts warm water 6 While not necessary the floats can be removed from the shaft during cleaning If you re
50. rier 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 404A as a mixture with pressurized air for leak testing 3 Evacuation and Recharge R 404A 1 Attach a vacuum pump to the system Be sure to connect the charging hoses to both high and low side refrigerant access valves 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 gauge manifold valves 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 low side valve and 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 27 6 A li
51. rols the icemaking process and DV operation X11 relay controls WV operation GM ice purge timer and low water safety circuit X12 relay controls EH operation C models Comp delay timer and DV operation A Control Board The control board operates on 24VAC provided at CB 1 W R and 2 LBU There are three 35VDC circuits that open close to control operation 1 Control Board 35VDC Circuits 1 Water confirmation for GM activation X11 relay terminals 4 DBU and 6 BR must close to complete the CB 35VDC circuit between CB 3 BR and 4 DBU Once this circuit closes CB energizes X1 relay and GM starts If open longer than 90 sec appliance shuts down 2 Jumper The jumper between CB 5 P and 6 P must be in place for CB operation 3 Gear Motor confirmation and 90 sec Comp delay timer initiation X12 relay 4 W BK and 6 W O must close to complete the CB 35VDC circuit between CB 10 W BK and 11 W O Once this circuit closes 90 sec Comp delay timer starts When 90 sec Comp delay timer terminates CB energizes X2 relay energizing Comp and FM 2 Control Board Relays X1 Gear Motor Relay X1 relay energizes after the reservoir fills UFS closes energizing X11 relay Once energized X11 relay closes a 35VDC circuit between CB terminals 3 BR and 4 DBU Once CB 35VDC circuit closes between terminals 3 BR and 4 DBU X1 relay energizes energizing GM and X12 relay X2 Compressor Relay X2 relay energize
52. s after CB 90 sec Comp delay timer terminates CB 90 sec compressor delay timer starts after X12 relay energizes and closes a 35VDC circuit between CB 10 W BK and 11 W O 23 Control Board Layout 10 35VDC 11 35VDC Output Compressor Input Compressor Delay Circuit Delay Circuit 5 and 6 35VDC Jumper uu rM X2 Compressor Relay 3 Compressor 4 115VAC Input 4 35VDC b di Input Low Water Safety Circuit ____ Pu 3 35VDC 1 Output Low Water Safety Circuit 2 Transformer we 24VAC Neutral 1 1 8 Gear Motor 24VAC Input 7 115VAC Input 24 5 0 and earlier and X10 C 1 and later Control Relay Relay energizes when power switch is ON safety switch closed if applicable safety relay if applicable de energized BC closed and flush control switch in ICE position Once energized relay allows 24VAC to X4 relay 0 and earlier or X11 relay C 1 and later for WV initiation and prevents DV from energizing during icemaking process X4 0 and earlier and X11 C 1 and later Water Control Relay Relay allows WV to energize when relay is de energized As water fills the reservoir UFS closes energizing relay Once energized relay de energizes WV and closes CB 35VDC circuit between CB 3 BR and 4 DBU for GM operation X3 C 0 and earlier and X12 C 1 and later Compressor Delay Relay Relay energizes with GM an
53. se before 90 sec low water safety timer terminates Otherwise shutdown cycle is initiated Once UFS closes X11 relay energizes WV de energizes and low water safety circuit closes terminating 90 sec low water safety timer Diagnosis Check that WV energizes If not confirm LFS status open X11 relay de energized If not see step 5 above 8 Shutdown Ice fills ice storage bin and presses BC actuator to open BC Comp FM GM and X12 relay continue X10 relay and X11 relay de energize 90 sec low water safety timer starts When 90 sec low water safety timer terminates Comp and FM de energize GM and X12 relay continue 60 sec GM delay timer starts Once 60 sec GM delay timer terminates GM X12 relay and EH on C model de energize DV energizes Reservoir and evaporator drain DV remains energized until BC closes again Diagnosis Check that BC actuator paddle is activated and not sticking Confirm BC is open and X10 relay de energizes not see Bin Control Check Next confirm X11 relay de energizes If not check for 24VAC at X10 relay 3 R to neutral LBU If 24VAC is present replace X10 relay If X11 relay is de energized after 90 sec confirm Comp and FM de energize If not check for 35VDC at CB 3 BR to CB 4 DBU If OVDC is present replace X11 relay If 35VDC is present and Comp and FM remain energized replace CB 60 sec after Comp and FM de energize confirm that GM and X12 relay de energize If not
54. then remove spout B See Fig 3 6 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if applicable 7 Disconnect the water hoses 8 Remove seal bolts securing the extruding head Using the cutter lift out the auger assembly 9 10 11 12 Disconnect the inlet and outlet tubing lt Remove the allen head cap screws securing the evaporator to the lower housing Lift off the evaporator 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 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 13 Make sure the lower mechanical seal is in place then place the evaporator in position Secure the evaporator to the lower housing using the allen head cap screws 2 14 15 16 Remove the drier then place the new drier in position Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG Check for leaks using nitrogen gas 140 PSIG and soap bubbles Evacuate the system and charge it with refrigerant See the nameplate for the required refri
55. witch to the ICE position Plug the appliance into the electrical outlet then move the power switch to the ON position 18 Replace the panels in their correct positions 7 Removal and Replacement of Gear Motor 1 Remove the front panel Move the flush control switch to the FLUSH or DRAIN position 2 After 2 min move the power switch to the OFF position then unplug the appliance from the electrical outlet 3 Remove the top panel and top insulation panel 4 Remove the thumbscrews attaching spout B to the bin then remove spout B See Fig 3 5 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if applicable 6 Remove the socket head cap screws securing the lower housing to the gear motor Lift the evaporator up slightly 7 Remove the socket head cap screws securing the gear motor 8 9 10 Replace the removed parts in the reverse order of which they were removed If applicable make sure safety switch components are in position Remove the wiring from the gear motor then remove the gear motor Attach spline coupling from the old gear motor to the new gear motor 11 Move the flush control switch to the ICE position Plug the appliance into the electrical outlet then move the power switch to the ON position 12 Replace the panels in their correct positions 37 Maintenanc
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