F-801M_H/-C Service Manual
Contents
1. MiITE RED W BU WHITE BLUE W BR WHITE BROWN POWER SWITCH W BK WHITE BLACK W O WHITE ORANGE FLUSH WATER VALVE FLOAT SWITCH CIRCUIT PROTECT RELAY 89 5 BIN 4 como WITCH Wo c Compressor starts about 60 sec after gear motor starts PIE DBU DARK BLUE R RED l N B V VIGET BR LBU LIGHT BLUE WHITE Y YELLOW WHITE RED W BU WHITE BLUE W BR WHITE BROWN POWER SWITCH W BK WHITE BLACK WHITE ORANGE FLUSH WATER VALVE CIRCUIT PROTECT RELAY 2 AM 3 Laser a COOLED MODEL ONLY 18 d Bin control operates and about 6 sec later compressor and gear motor stop simultaneously 115 60 MEN R l N GY GRAY VIOLET BR LBU LIGHT BLUE WHITE Y YELLOW WIR WITE RED W BU WHITE BLUE W BR WHITE BROWN POWER SWITCH W BK WHITE BLACK WHITE ORANGE d X RE 1 SMS nn 0 L FLOAT GEAR MOTOR PROTECT RELAY L ow me A AIR COOLED HODEL ONLY 19 e Low water except water cooled model 0 ORANGE BROW P PINK DARK BLUE V VIOLET 115 6071 cog GRAY BR LBU LIGHT BLUE WHITE W R WHITE RED W BU WHITE BLUE W2. Bearing Washer Coupling Spline Lower Bc Rubber O ring Nylon Ring Washer Cutter Extruding Head d Socket Head Cap Screw Evaporator Ch m Washer 7 Socket Head Cap Screw l Barrier Gear Motor 8 Removal and Replacement of Fan Motor 1 Turn off the power supply and remove the panels 2 Remove the wire connectors from the fan motor leads 3 Remove the fan motor bracket and fan motor 4 Install the new fan motor 5 Replace the fan motor bracket and the wire connectors 6 Replace the panels in their correct position and turn on the power supply 9 Removal and Replacement of Control Water Valve 1 Turn off the power supply remove the panels and close the water supply line shut off valve 2 Disconnect the terminals from the control water valve 3 Loosen the fitting nut on the control water valve inlets and remove the control water valve Do not lose the packings inside the fitting nut 4 Remove the water supply hose from the control water valve 5 Install the new control water valve 6 Assemble the removed parts in the reverse order of the above procedure 7 Open the water supply line shut off valve 8 Check for water leaks 9 Replace the panels in their correct position and turn on the power supply 49 10 Removal and Replacement of Flush Water Valve 1 Turn off the power supply remove the panels a
3. RAY VIOLET aR LBU LIGHT BLUE Y YELLOW WHITE RED W B MHITE BLUE W BR WHITE BROWN POER SWITCH W BK WHITE BLACK WO WHITE ORANGE W BR R e c s a Ss HOT PROTECTOR T TRANS STARTER FUSE 180 W FLUSH SWITCH BR 2 D 0 19395910 WR um Cl WR ae FLUSH WATER VALVE m Eu it O O O FLOAT SWITCH CIRCUIT RELAY saa GEAR MOTOR PROTECT RELAY A Fa 1 33 05 79 49800 BR LT en A AIR COOLED MODEL ONLY 15 3 Sequence of Electrical Circuit a When power switch is moved to ON position and flush switch to ICE position water starts to be supplied to reservoir 115 60 1 BK BLACK 0 ORANGE BR BROWN P PINK DBU DARK BLUE RED GY GRAY V VIOLET LBU LIGHT BLUE V WHITE YELLOW WHITE RED W BU WHITE BLUE W BR WHITE BROW W BK WHITE BLACK W O WHITE ORANGE FLOAT SHIT zu 0 FLUSH WATER VALYE CIRCUIT HEATER AM la AIR COOLED MODEL ONLY 16 EEE b When reservoir has been filled gear motor starts immediately 1145 60 1 DBU DARK BLUE i G GU VIOLET BR LBU LIGHT BLUE W WHITE
4. 614 279 552 250 490 222 437 198 405 184 Cubelet Approx 80 Ice 90 70 F Conductivity 200 us cm N A 90 70 F 70 50 F 1169 5 1 1110 3 5 66 12 90 12 22 x 27 3 8 x 25 15 16 560 x 695 x 658mm Stainless Steel Galvanized Steel Rear Net 176 Ibs 80 kg Shipping 207 Ibs 94 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT Auger type Direct Driven Auger 1 4HP Gear Motor Float Switch N A Mechanical Bin Control Proximity Sw Hermetic Model RS43 C2E CAA Air cooled Fin and Tube Type Copper Tube on Cylinder Thermostatic Expansion Valve R 404A 1lb 1202 800 g High 427 PSIG Low 230 PSIG High Voltage Cut off Relay Auto reset Overload Protector Fuse 3A Auto reset High Pressure Control Switch Float Switch and Timer Spare Fuse Ice Storage Bin VOLTAGE RANGE 104 127 V AMBIENT TEMP 45 100 F WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG We reserve the right to make changes in specifications and design without prior notice 7 F 801MWH C AC SUPPLY VOLTAGE COMPRESSOR GEAR MOTOR OTHER MAXIMUM FUSE SIZE MAX HACR BREAKER USA ONLY MAX CIRC BREAKER CANADA ONLY MINIMUM CIRCUIT AMPACITY 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 WATER COOLED CONDE
5. 555 252 100 528 239 502 228 471 214 Flake Approx 70 Ice 90 70 F Conductivity 200 us cm N A 90 70 F 70 50 F 1131 4 5 1089 3 2 72 12 99 12 22 27 3 8 x 25 15 16 560 695 x 658mm Stainless Steel Galvanized Steel Rear Net 176 Ibs 80 kg Shipping 207 Ibs 94 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT Auger type Direct Driven Auger 1 4HP Gear Motor Float Switch N A Mechanical Bin Control Proximity Sw Hermetic Model RS43 C2E CAA Air cooled Fin and Tube Type Copper Tube on Cylinder Thermostatic Expansion Valve R 404A 110 1202 800 9 High 427 PSIG Low 230 PSIG High Voltage Cut off Relay Auto reset Overload Protector Fuse Auto reset High Pressure Control Switch Float Switch and Timer Spare Fuse Ice Storage Bin VOLTAGE RANGE 104 127 V AMBIENT TEMP 45 100 F WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG We reserve the right to make changes in specifications and design without prior notice 5 F 801MWH AC SUPPLY VOLTAGE COMPRESSOR GEAR MOTOR OTHER MAXIMUM FUSE SIZE MAX HACR BREAKER USA ONLY MAX CIRC BREAKER CANADA ONLY MINIMUM CIRCUIT AMPACITY 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 lbs POTABLE WATER WATER COOLED CONDENSER
6. SRM IRR PERPE M 35 hatu 37 ENS NI TETTE TETTE 38 VI Removal and Replacement of Components ea natae pa nc 39 qe 39 a Refrigera t R COVery eo u n a tuc iiu 39 b Evacuation and Recharge 404 2 39 40 Removal and Replacement of 2 41 4 Removal and Replacement Of Drier 42 5 Removal and Replacement of Expansion Valve 43 6 Removal and Replacement of Water Regulating Valve water cooled model only 44 7 Removal and Replacement of Evaporator Assembly 45 8 Removal and Replacement of Fan Motor 49 9 Removal and Replacement of Control Water Valve 49 10 Removal and Replacement of Flush Water Valve 50 VII Cleaning and Maintenance 51 1 Preparing the Icemaker for Long Storage 51 2 Cleaning and Sanitizing Instructions 52 Gl aning ua 52 b Cleaning Pro
7. 90 100 APPROXMATE WATER 70 CONSUMPTION PER 24 HR 80 90 day 100 7 F C 14 40 14 10 14 40 HEAD PRESSURE 0 80 90 100 EVAPORATOR OUTLET TEMP 0 80 90 100 7 PSIG kg cm G 282 198 SUCTION PRESSURE 70 PSIG kg cm G 80 90 TOTAL HEAT OF REJECTION 6398 BTU h AT 90 F WT 70 F Note The data without marks should be used for reference We reserve the right to make changes in specifications and design without prior notice 31 F 801MWH C APPROXMATE ICE PRODUCTION PER 24 HR Ibs day kg day ELECTRIC CONSUMPTION watts APPROXMATE WATER CONSUMPTION PER 24 HR TOTAL gal day l day EVAPORATOR OUTLET TEMP F C HEAD PRESSURE PSIG kg cm G SUCTION PRESSURE PSIG kg cm G WATER FLOW FOR CONDENSER m F a CALO UU NEN Temp F Temp 5 o m 270 265 255 350 5 241 521 236 1083 1082 1080 1078 1076 1075 1072 1070 He 276 qum 342 294 276 260 246 485 220 1081 1077 1073 1068 579 252 305 m 381 693 8 YS e KH KH 263 18 5 263 18 5 264 18 6 18 5 A 5 18 6 3 2 3 2 47 8 3 2 46 3 3 3 2 13 AT 90 F WT 70 F T I lt 263 15 gt 18 5 18 6 263 18 5 263 18 5 264 18 6 0 0 00 a Di PRESSURE DROP OF COOLING WAT
8. WATER CONTROL N RELAY FLUSH TIMER TRANSFORME PROTECT GEAR MOTOR RELAY GEAR MOTOR PROTECT RELAY N O FUSE FUSE GEAR MOTOR lll Technical Information 1 Water Circuit and Refrigeration Circuit F 801MAH C CONTROL WATER VALVE lt gt WATER RESERVOIR INLET FLOAT SWITCH OVERFLOW GEAR MOTOR V OUTLET DRAIN PAN CONDENSER FAN MOTOR ACCESS VALVE PRESSURE SWITCH CONDENSER lt __ ACCESS VALVE COMPRESSOR WATER CIRCUIT lt _ REFRIGERATION CIRCUIT 13 F 801MWH C CONTROL WATER VALVE L gt WATER RESERVOIR INLET E FLOAT SWITCH OVERFLOW DRAIN OUTLET lt DRAIN PAN COND WATER PRESSURE INLET SWITCH CONDENSER Y 55 VALVE WATER COND REGULATING WATER VALVE OUTLET __ ACCESS VALVE COMPRESSOR WATER CIRCUIT lt _ REFRIGERATION CIRCUIT 14 2 Wiring Diagrams F 801MAH C F 801MWH C 14576011 RPP DBU DARK BLUE L
9. 230 PSIG High Voltage Cut off Relay Auto reset Overload Protector Fuse 3A Auto reset High Pressure Control Switch Float Switch and Timer Spare Fuse Ice Storage Bin VOLTAGE RANGE 104 127V AMBIENT TEMP 45 100 F WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG We reserve the right to make changes in specifications and design without prior notice 6 F 801MAH C AC SUPPLY VOLTAGE COMPRESSOR GEAR MOTOR FAN MOTOR OTHER MAXIMUM FUSE SIZE MAX HACR BREAKER USA ONLY MAX CIRC BREAKER CANADA ONLY MINIMUM CIRCUIT AMPACITY APPROXMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE QUALITY APPROXMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 lbs 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 PC BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION GEAR MOTOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 115 60 1 120 V 9 4 RLA 51 LRA 120 V 3 FLA 1 4 HP 115 V 0 85 FLA 1 15 HP 120 V 0 03 A 20A 20A 20A WATER TEMP F 50 70 90 728 330 688 312
10. 230 PSIG High Voltage Cut off Relay Auto reset Overload Protector Fuse 3A Auto reset High Pressure Control Switch Float Switch and Timer Spare Fuse Ice Storage Bin VOLTAGE RANGE 104 127V AMBIENT TEMP 45 100 F WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG We reserve the right to make changes in specifications and design without prior notice 8 IL General Information 1 Construction F 801MAH C __ Water Supply Inlet Control Water Valve Junction Box Bin Control Ice Chute Evaporator Fan Motor Expansion Valve Compressor Flush Water Valve Drier Control Box Gear Motor F 801MWH C Water Supply Inlet Control Water Valve Junction Box Bin Control Ice Chute Water Evaporator Regulator Expansion Valve Compressor Flush Water Valve Drier Control Box Gear Motor 10 2 Control Box Layout F 801MAH C Note The above component names are identical with the wiring label but not with the parts list F 801MWH C PRESSURE SWITCH START CAPACITOR CONNECTOR RUN CAPACITOR
11. WHITE ORANGE 115 60 1 en x adir T AM 3 em 23 i When 208 230V are supplied to circuit protect relay it protects the circuit from miswiring If the power supply is properly connected the contact of circuit protect relay does not move even when the coil is energized BK BLACK 0 ORANGE 115 60 1 BR BROWN DBU DARK BLUE 1 N GY GRAY BR LBU LIGHT BLUE W WHITE Y YELLOW WIR WITE RED W BU WHITE BLUE W BR WHITE BROWN POWER SWITCH W BK WHITE BLACK W O WHITE ORANGE W BR WP R tt RN OP x HU od A MD MOT PROTECTOR 0 DBU STARTER TAS c RISE PES 2N LBU C wi FLUSH SWITCH BR D 0 FLUSH TIMER gt Lap c 19 39 50 70 b WR ug T WR 1 a FLUSH WATER VALVE R cee 2 FLOAT SWITCH ji CIRCUIT PROTECT RELAY PRESSURE SWITCH 8o m GEAR MOTOR PROTECT RELAY Ae 1 R 91 93 05 97 1 7 7 OF 040 64 Y ES T UM EON LONE E LN ee A AIR COOLED MODEL ONLY 24 j When input voltage is too low less than 70 gear motor fuse 1 5A is blown causing the compressor and gear motor to turn off immediately BK BLACK 0 115 60
12. 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 PC BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION GEAR MOTOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 115 60 1 120 V 120 V 120 20 20 20 8 5 RLA 3 FLA 0 03 A 51 LRA 1 4 HP WATER TEMP 6 7 9 720 327 693 315 677 307 80 661 300 646 293 630 286 90 616 279 605 274 587 266 100 573 260 560 254 520 236 Flake Approx 7096 Ice 90 70 F Conductivity 200 N A 90 70 F 70 50 F 1078 4 3 1076 3 6 72 12 86 12 360 60 219 31 22 x 27 3 8 560 25 15 16 695 x 658mm Stainless Steel Galvanized Steel Rear Net 176 16 80 kg Shipping 207 Ibs 94 kg Permanent Connection Inlet 1 2 FPT Cond Inlet 1 2 FPT Outlet 3 4 FPT Cond Outlet 3 8 FPT Auger type Direct Driven Auger 1 4HP Gear Motor Float Switch N A Mechanical Bin Control Proximity Sw Hermetic Model RS43 C2E CAA Water cooled tube in tube type Copper Tube on Cylinder Thermostatic Expansion Valve R 404A 116 2 470 g High 427 PSIG Low
13. other repairs or replacement have been made 1 Turn off the power supply and remove the panels 2 Recover the refrigerant and store itinan approved container if required by an applicable law 3 Remove the expansion valve bulb at the evaporator outlet 4 Remove the expansion valve cover and remove the expansion valve using brazing equipment 5 Braze the new expansion valve with nitrogen gas flowing at the pressure of 3 4 PSIG WARNING Always protect the valve body by using a damp cloth to prevent the valve from overheating Do not braze with the valve body exceeding 250 F 6 Install the new drier 7 Check for leaks using nitrogen gas 140 PSIG and soap bubbles 8 Evacuate the system Charge it with refrigerant For the air cooled and water cooled models see the nameplate for the required refrigerant charge and type For the remote air cooled models see the label on the control box 9 Attach the bulb to the suction line Be sure to secure the bulb using a band and to insulate it 10 Place the new set of expansion valve covers in position 11 Replace the panels in their correct position and turn on the power supply 43 6 Removal and Replacement of Water Regulating Valve water cooled model only IMPORTANT Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repairs or replacement have been made 1 Turn off the
14. power supply remove the panels and close the water supply line shut off valve 2 Recover the refrigerant and store it in an approved container 3 Disconnect the capillary tube using brazing equipment 4 Disconnect the flare connections of the valve 5 Remove the screws and the valve from the bracket 6 Install the new valve and braze the capillary tube 7 Install the new drier 8 Check for leaks using nitrogen gas 140 PSIG and soap bubbles 9 Connect the flare connections 10 Evacuate the system and charge it with refrigerant See the nameplate for the required refrigerant charge and type 11 Open the water supply line shut off valve and turn on the power supply 12 Check for water leaks 13 See IV 1 Adjustment of Water Regulating Valve If necessary adjust the valve 14 Replace the panels in their correct position 44 7 Removal and Replacement of Evaporator Assembly 1 Turn off the power supply 2 Remove the panels 3 Move the flush switch to the FLUSH position 4 Turn on the power supply and drain out all water from the water line 5 Turn off the power supply 6 Remove the strap connecting the spout to the chute assembly 7 Remove the three thumbscrews and take off the spout from the evaporator Cutter 8 Remove the bolt and lift off the cutter 9 Remove the rubber O ring and the nylon ring at the top of the evaporator Extruding Head 10 Remove the four socket head cap screw
15. start but no ice is produced O 2 Low Ice Production PROBLEM POSSIBLE CAUSE a Refrigerant Line 1 Low ice production b High side Pressure 1 Dirty Air Filter or Too High Condenser 2 Ambient or condenser water temperature too warm 3 Condenser water pressure too low or off Water cooled model only 4 Fan rotating too slow 5 Water Regulating 5 Valve clogged Water cooled model only f c Expansion Valve not adjustable too high 1 Gas leaks 1 2 Refrigerant line 2 clogged 3 Overcharged 3 1 2 6 Condensing unit out 6 of order 1 Low side pressure 1 too low 2 Low side pressure 2 REMEDY See 1 5 a Refrigerant Line Replace the clogged component Recharge Clean Get cooler Check and get recommended pressure See 3 1 a Fan Motor Clean Check condensing unit Replace See if Expansion Valve Bulb is mounted properly and replace the valve if necessary 37 3 Other PROBLEM POSSIBLE CAUSE REMEDY 1 Abnormal noise a Fan Motor 1 Bearing worn out 1 Replace 2 Fan blade deformed 2 Replace fan blade 3 Fan blade does not 3 Replace move freely b Compressor 1 Bearings worn out 1 Replace or cylinder valve broken 2 Mounting pad out of 2 Reinstall position c Refrigerant Lines 1 Rub or touch lines or 1 Replace other surfaces d Gear
16. 1 PINK DBU DARK BLUE N VIOLET BR LBU LIGHT BLUE W YELLOW WHITE RED W BU WHITE BLUE W BR WHITE BROWN POWER SWITCH W BK WHITE BLACK W O WHITE ORANGE lt 6 said FLOAT SIT Aree 4 Timing Chart Miswiring Circuit Protect Relay operates Proper wiring The unit starts BIN CONTROL 1 CIRCUIT PROTECT RELAY 2 WATER LEVEL 3 FLOAT SWITCH LOWER 4 WATER CONTROL RELAY 5 CONTROL WATER VALVE 6 FLUSH TIMER FLUSH 7 FLUSH SWITCH 8 FLUSH WATER VALVE 9 BIN CONTROL 10 GEAR MOTOR RELAY tS 12 FAN MOTOR MIS p 60 sec 13 COMPRESSOR 14 PRESSURE SWITCH 26 LOW WATER FLUSH TIMER OFF RELAY weno ES VR 42 22 41 Il r _ BOTTO dI UPPER OFF a 3 FLOAT Jil SWITCH THE or 3 7 7 WATER CONTROL EN i E HT 5 CONTROL WATER mmm orr n _ C 6 FLUSH TIMER I 2 3 4 every 12 hr Jl 4 7 FLUSH SWITCH mE 8 FLUSH WATER VALVE 9 BIN CONTROL 10 GEAR MOTOR RELAY 12 FAN MOTOR T E M 7 60 sec 60 0 13 COMPRESSOR mI 14 PRESSURE is mI 27 FLUSH SWITCH P
17. 8 46 3 3 We reserve the right to make changes in specifications and design without prior notice 29 F 801MWH APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR TOTAL gal day l day EVAPORATOR OUTLET TEMP F HEAD PRESSURE PSIG kg cm G SUCTION PRESSURE PSIG kg cm G WATER FLOW FOR CONDENSER m WaterTemp F Temp mas sa 0 307 661 800 286 af 275 266 260 520 236 1176 1076 1076 1077 1077 1076 1074 O T 1069 He 306 397 cea 631 257 ms 457 ms 778 ens 265 18 6 265 18 6 266 18 7 18 6 8 6 25 18 7 3 0 3 0 T 44 3 0 43 3 0 3 0 15 AT 90 F WT 70 F T I lt d deg 266 265 18 6 265 18 6 266 18 7 0 0 00 a D PRESSURE DROP OF COOLING WATER LINE Less than 7 PSIG HEAT OF REJECTION FROM CONDENSER 5155 BTU h AT 90 F WT 70 F HEAT OF REJECTION FROM COMPRESSOR 1050 BTU h AT 90 F WT 70 F Note The data without marks should be used for reference We reserve the right to make changes in specifications and design without prior notice 30 F 801MAH C APPROXMATE Ambient ICE PRODUCTION vem a PER 24 HR 70 80 90 Ibs day_ kg day 100 463 210 437 198 405 184 APPROXMATE ELECTRIC 70 CONSUMPTION 80
18. BR WHITE BROWN POWER SWITCH W BK WHITE BLACK W O WHITE ORANGE W 20 f Low water water cooled model or dirty air filter air cooled model pressure switch to OPEN compressor and gear motor operate intermittently 0 ORANGE 115 60 1 PINK DBU DARK BLUE RED L N GY GRAY VIOLET BR LBU LIGHT BLUE W WHITE YELLOW WIR MITE RED W BU MHITE BLUE W BR WHITE BROWN POWER SWITCH W BK WHITE BLACK W O WHITE ORANGE BR R RON CAP c MOT PROTECTOR k gt W ak Aa e FLOAT SWITCH m GEAR MOTOR PROTECT RELAY i 1o l g When flush switch is moved to FLUSH position flush water valve opens and flushes reservoir and evaporator 115 60 4 BK BLACK 0 ORANGE BR BROWN DBU DARK BLUE VIOLET GY GRAY ws LBU LIGIT BLUE WHITE Y YELLOW WIR WHITE RED W BU WHITE BLUE W BR WHITE BROWN W BK WHITE BLACK W O WHITE ORANGE DBU a AIR COOLED MODEL ONLY 22 h When flush timer operates for 15 min every 12 hours PINK RED BR LBU LIGHT BLUE WHITE Y VELLOW WIR WHITE RED W BU WHITE BLUE W BR WHI TE BROWN SWITCH WIBK WITEJBLACK
19. ER LINE Less than 7 PSIG HEAT OF REJECTION FROM CONDENSER 5155 BTU h AT 90 F WT 70 F HEAT OF REJECTION FROM COMPRESSOR 1050 BTU h AT 90 F WT 70 F Note The data without marks should be used for reference We reserve the right to make changes in specifications and design without prior notice 32 IV Adjustment of Components 1 Adjustment of Water Regulating Valve water cooled model only The water regulating valve or also called water regulator is factory adjusted No adjustment is required under normal use Adjust the water regulator if necessary using the following procedures 1 Attach a pressure gauge to the high side line of the system Or prepare a thermometer to check the condenser drain temperature 2 Rotate the adjustment screw by using a flat blade screwdriver so that the pressure gauge shows 260 PSIG R 404A models F type or the thermometer reads 100 104 F in 5 minutes after the icemaking process starts When the pressure exceeds 260 PSIG orthe condenser drain temperature exceeds 104 F rotate the adjustment screw counterclock wise 3 Check that the pressure or the condenser drain temperature holds a stable setting Adjustment Screw Adjustment Screw CW CCW Bottom View CW Higher CCW Lower 33 2 Adjustment of Flake Size To adjust the flake size change the direction of the cutter head on the top of the auger according to the following procedures 1 Remove t
20. Hoshizaki America Inc A Superior Degree of Reliability www hoshizaki com Modular Flaker Models 80 MAH C SERVICE MANUAL Number 73113 Issued 7 29 2004 Revised 6 15 2005 IMPORTANT Only qualified service technicians should attempt to service or maintain this icemaker No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual HOSHIZAKI provides this manual primarily to assist qualified service technicians in the service and maintenance of the icemaker Should the reader have any questions or concerns which have not been satisfactorily addressed please call or write to the HOSHIZAKI Technical Support Department for assistance HOSHIZAKI AMERICA INC 618 Highway 74 South Peachtree City GA 30269 Attn HOSHIZAKI Technical Support Department Phone 1 800 233 1940 Technical Service 770 487 2331 Fax 1 800 843 1056 770 487 3360 Web Site www hoshizakiamerica com Note To expedite assistance all correspondence communication MUST include the following information Model Number e Serial Number Complete and detailed explanation of the problem Please review this manual It should be read carefully before the icemaker is serviced or maintenance operations are performed Only qualified service technicians should service and maintain the icemaker This manual should be made available to the technician prior to service o
21. Motor Ice 1 Bearing or Gear 1 Replace Making worn out damaged e Evaporator 1 Too much pressure 1 Replace loss 2 Scale on inside wall Remove Auger Use of Freezing Cylinder SCALE AWAY or LIME A WAY solution to clean periodically If the water is found hard by testing install a softener 2 Overflow from a Water Supply 1 Water pressure too 1 Install a pressure Reservoir Water high Reducing Valve does not stop b Control Water Valve 1 Diaphragm does not 1 Clean or replace close c Float Switch 1 Bad contacts 1 Check for continuity and replace 3 Gear Motor Fuse a Power Supply 1 Toohigh ortoo low 1 Connectthe unit to a blown frequently Voltage power supply of proper voltage b Ice Making Unit 1 Bearings or Auger 1 Replace Bearing or worn out Auger c Bin Control 1 Bad contacts 1 Check for continuity and replace 2 Activator does not 2 Clean Axle and its move freely corresponding holes or replace Bin Control 38 VI Removal and Replacement of Components IMPORTANT Ensure all components fasteners and thumbscrews are securely in place after the equipment is serviced IMPORTANT The Polyolester POE oils used in R 404A units can absorb moisture quickly Therefore it is important to prevent moisture from entering the system when replacing or servicing parts Always install a new filter drier every time the sealed refrigeration system is opened Do
22. NSER gal 24HR gal 100 Ibs EXIERIOR 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 PC BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION GEAR MOTOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 115 60 1 120 V 120 V 120 V 20A 20A 20A 20A Ambient Temp F 70 8 5 RLA 3 FLA 0 03 A 51 LRA 1 4 HP WATER TEMP 9 620 281 608 276 585 265 574 260 80 596 270 90 563 255 550 249 541 246 100 531 241 521 236 485 220 Cubelet Approx 80 Ice 90 70 F Conductivity 200 us cm N A 90 70 F 70 50 F 1075 4 7 1083 4 1 66 12 77 12 302 55 199 31 22 27 3 8 x 25 15 16 560 695 x 658mm Stainless Steel Galvanized Steel Rear Net 176 Ibs 80 kg Shipping 207 Ibs 94 kg Permanent Connection Inlet 1 2 FPT Cond Inlet 1 2 FPT Outlet 3 4 FPT Cond Outlet 3 8 FPT Auger type Direct Driven Auger 1 4HP Gear Motor Float Switch N A Mechanical Bin Control Proximity Sw Hermetic Model RS43 C2E CAA Water cooled tube in tube type Copper Tube on Cylinder Thermostatic Expansion Valve R 404A 10 2 470 g High 427 PSIG Low
23. RESSURE SWITCH CIRCUIT PROTECT RELAY 2 WATER LEVEL FLOAT SWITCH LOWER 3 4 WATER CONTROL RELAY CONTROL WATER VALVE 1 2 6 FLUSH TIMER 2 3 FLUSH 7 FLUSH SWITCH ICE 8 FLUSH WATER VALVE BIN CONTROL 9 m 10 GEAR MOTOR E mn TT O ON OFF ON OFF ON mama PPU 2 r l Yi en m 12 FAN MOTOR dd 90 sec 0 1 60 sec 13 COMPRESSOR ON OFF 14 ON OFF PRESSURE SWITCH 28 5 Performance Data F 801MAH APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR TOTAL gal day l day EVAPORATOR OUTLET TEMP F C HEAD PRESSURE PSIG kg cm G SUCTION PRESSURE PSIG kg cm G TOTAL HEAT OF REJECTION Ambient 70 80 90 100 70 80 90 100 70 80 90 100 70 80 90 100 70 80 90 100 70 80 90 100 Water Temp F amp 7 823 357 307 N N ha Raed eo Se 16 17 8 18 8 20 7 302 212 302 212 302 212 302 212 16 9 9 17 8 7 18 7 18 7 18 7 18 7 YS n 42 3 0 42 8 0 42 42 3 0 6398 BTU h AT 90 F WT 70 F Note The data without marks should be used for reference 46 46 3 3 3 3 46 3
24. ce the top panel and front panel in their correct positions Make ice using the solution until the icemaker stops making ice e Sanitizing Procedure Final 1 Remove the front panel and top panel then turn off the power supply 2 Move the flush switch to the FLUSH position 3 Turn on the power supply and drain out all water from the water line 4 Turn off the power supply 5 Remove the strap connecting the spout to the chute assembly 6 Remove the thumbscrews securing the spout and lift it off 7 Pour the sanitizing solution over the extruding head until the evaporator assembly and the reservoir are filled and the solution starts to overflow into the drain pan 8 Replace the spout and strap in their correct positions 9 Allow the icemaker to sit for about 10 minutes before operation 10 Move the flush switch to the ICE position then turn on the power supply Replace the top panel and front panel in their correct positions Make ice using the solution until the icemaker stops making ice 11 Remove the front panel 12 Move the flush switch to the FLUSH position to drain the remainder of the solution 13 After the solution is drained move the flush switch to the ICE position 14 Replace the front panel in its correct position 15 Open the water supply line shut off valve and supply water to the reservoir 55 16 When the gear motor starts remove the front panel and turn off the power suppl
25. cedure 53 Sanitizing fie PP 54 d Sanitizing Procedure Initial tue 54 e Sanitizing Procedure Final Epb Een quf 55 euni TRE 57 I Specification 1 Icemaker F 801MAH AC SUPPLY VOLTAGE COMPRESSOR GEAR MOTOR FAN MOTOR OTHER MAXIMUM FUSE SIZE MAX HACR BREAKER USA ONLY MAX CIRC BREAKER CANADA ONLY MINIMUM CIRCUIT AMPACITY 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 lbs 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 PC BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION GEAR MOTOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 115 60 1 120 V 120 V 115 V 120 V 20A 20A 20A 20A Ambient 9 4 RLA 3 FLA 0 85 FLA 0 03 A 51 LRA 1 4 HP 1 15 HP WATER TEMP Temp F 9 70 823 373 786 357 748 339 80 711 323 677 307 644 292 90 613 278 599 272
26. d refrigeration system is opened Do not replace the drier until after all other repairs or replacement have been made 1 Turn off the power supply and remove the panels 2 Remove the terminal cover on the compressor and disconnect the compressor wiring 3 Recover the refrigerant and store itin an approved container if required by an applicable law 4 Remove the discharge suction and access pipes from the compressor using brazing equipment WARNING When repairing a refrigerant system be careful not to let the burner flame contact any electrical wires or insulation 5 Remove the bolts and rubber grommets 6 Slide and remove the compressor Unpack the new compressor package Install the new compressor 7 Attach the rubber grommets of the prior compressor 8 Sandpaper the discharge suction and access pipes 9 Place the compressor in position and secure it using the bolts 10 Remove plugs from the discharge suction and access pipes 11 Braze the access suction and discharge lines Do not change this order while purging with nitrogen gas flowing at the pressure of 3 4 PSIG 12 Install the new drier 13 Check for leaks using nitrogen gas 140 PSIG and soap bubbles 41 14 Evacuate the system and charge it with refrigerant For the air cooled and water cooled models see the nameplate for the required refrigerant charge and type For the remote air cooled models see the label on the control bo
27. embly is completely full 10 Replace the spout and strap in their correct positions 11 Allow the icemaker to sit for about 10 minutes before operation If you placed a clamp on the reservoir hose in step 9 remove it before operation 12 Move the flush switch to the ICE position then turn on the power supply Replace the top panel and front panel in their correct positions Make ice using the solution until the icemaker stops making ice 13 Remove the front panel 14 Move the flush switch to the FLUSH position to drain the remainder of the solution 15 After the solution is drained move the flush switch to the ICE position 16 Replace the front panel in its correct position 17 Open the water supply line shut off valve and supply water to the reservoir 18 When the gear motor starts remove the front panel and turn off the power supply 19 Drain out all water from the water line See 4 through 6 53 c Sanitizing Solution Dilute 2 5 fl oz 74 ml or 5 tbs of IMS II Sanitizer or a 5 25 sodium hypochlorite solution chlorine bleach with 5 gallons 19 l of warm water IMPORTANT For safety and maximum effectiveness use the solution immediately after dilution d Sanitizing Procedure Initial The sanitizing process will sanitize the icemaker 1 Close the water supply line shut off valve 2 Remove the strap connecting the spout to the chute assembly 3 Remove the thumbscrews securin
28. eplace stop and the icemaker will not 2 Coilwinding opened 2 Replace 5 b Float Switch 1 Bad contacts 1 Check for continuity and replace 2 Float does not move 2 Clean or replace freely c Flush Water Valve 1 Valve seat clogged 1 Clean or replace and water leaking d Hoses 1 Disconnected 1 Connect 3 Water has been a Water Control Relay 1 Bad contacts 1 Check for continuity supplied but the and replace icemaker will not b Bin Control 1 Bad contacts 1 Check for continuity start and replace 2 Activator does not 2 Clean Axle and its move freely corresponding holes or replace Bin Control c Gear Motor Relay 1 Coil winding opened 1 Replace 2 bad contacts 2 Check for continuity and replace d Control Timer 1 Broken 1 Replace Printed Circuit Board e Gear Motor Protect 1 Coil winding opened 1 Replace Pelay 2 Bad contacts 2 Check for continuity and replace 3 PROBLEM POSSIBLE CAUSE REMEDY 4 Water has been a Gear Motor Fuse 1 Blown Fuse 1 See 3 Find out supplied Fan Motor BUSSMAN GMD the cause and replace starts but Gear 1 5 the Fuse Motor and b Thermal Protector 1 Bad contacts 1 Check for continuity Compressor will not Gear Motor and replace start Pressure Switch 1 Dirty Air Filter or 1 Condenser 2 Ambient or 2 Get cooler condenser water Clean Gear Motor and Compressor start but operate interm
29. g the spout and lift it off Remove the rubber O ring and nylon O ring at the top of the cylinder and also remove the packing between the spout and the chute 4 Pour the sanitizing solution over the extruding head until the evaporator assembly and the reservoir are filled and the solution starts to overflow into the drain pan 5 Remove the two thumbscrews securing the proximity switch to the chute assembly 6 Remove the chute assembly from the icemaker 7 Remove the packing at the bottom of the ice chute 8 Remove the three ties and the chute insulation 9 Remove the six wing nuts and two baffles 10 Remove the two thumbscrews the plate and the packing from the top of the ice chute then remove the bin control assembly by sliding it slightly toward the chute opening and lifting it off 11 Disassemble the bin control assembly by removing the two snap pins shaft and actuator 12 Soak the removed parts in 25 gallons 1 l of sanitizing solution for 10 minutes then wipe them down 13 Rinse the parts thoroughly IMPORTANT If the solution is left on these parts they will rust 54 14 Replace all parts in their correct positions IMPORTANT When installing the baffles make sure that the bent surface the one without the studs faces the actuator so that the bent surface can guide the ice to the center of the actuator 15 Move the flush switch to the ICE position then turn on the power supply Repla
30. he bolt and the cutter head 2 The cutter head has two holes one for fine flake and the other for coarse flake size The unit is shipped from the factory in the fine flake position 3 Place the cutter head so that the pin on the top of the auger fits into the selected hole 4 Secure the cutter head by the bolt 34 V Service Diagnosis 1 No Ice Production PROBLEM POSSIBLE CAUSE REMEDY 1 The icemaker will a Power Supply 1 OFF position 1 Move to ON position not start 2 Loose connection 2 Tighten 3 Check for contintinuity and replace 4 Blown fuse 4 Replace b Power Switch 1 Off position 1 Move to ON position Control Box 2 Bad contacts 2 Check for continuity and replace c Fuse Control Box 1 Blown out 1 Check for short circuit and replace d Circuit Protect Relay 1 Miswiring 1 Check power supply voltage and wire properly e Flush Timer 1 Flushing out 1 Wait for 15 minutes 2 Bad contacts 2 Check for continuity and replace f Flush Switch 1 FLUSH position 1 Move to ICE position and replace 1 Coil winding opened 1 Replace 1 Coil winding opened 1 Replace i Shut off Valve 1 Closed 1 Open 2 Water failure 2 Wait till water is supplied j Plug and Receptacle 1 Disconnected 1 Connect Control Box 2 TerminaloutofPlug 2 Insert Terminal back in or Receptacle position 2 Water flow does not a Water Control Relay 1 Contact fused 1 R
31. ittently a temperature too warm 3 Condenser water Check and get pressure too low or recommended off Water cooled pressure model only 4 Water Regulating Adjust it lower Valve set too high Water cooled model only 5 Fan not rotating 5 See 3 1 a Fan Motor 6 Refrigerant 6 Recharge overcharged 7 Refrigerant line or 7 Clean and replace components drier plugged 8 Bad contacts 8 Check for continuity and replace 9 Tighten 6 Gear Motor starts a X2 Relay on Control 1 Bad contacts 1 Replace Check for but Compressor will Timer continuity and replace not start or operates 2 Coil winding opened 2 Replace Timer intermittently b Starter 1 Bad contacts 1 Check for continuity and replace 2 Coil winding opened 2 Replace 3 Loose Connections Tighten 3 C Start Capacitor or 1 Defective 1 Replace Run Capacitor d Compressor Tighten 2 Motor winding 2 Replace opened or grounded 3 Motor Protector 3 Find out the cause of e Power Supply tripped overheat or overcurrent 1 Circuit Ampacity too 1 Install a larger sized low conductor Gear Motor and a Refrigerant Line 1 Gas leaks 1 Check for leaks with a leak detector Reweld leak replace drier and charge with refrigerant The amount of refrigerant is marked on Nameplate or Label 2 refrigerant line 2 Replace the clogged clogged component Compressor
32. l Support at 1 800 233 1940 1 Stainless Steel Exterior To prevent corrosion wipe the exterior occasionally with a clean and soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up 2 Storage Bin and Scoop Wash your hands before removing ice Use the plastic scoop provided bin accessory The storage bin is for ice use only Do not store anything else in the bin Keep the scoop clean Clean using a neutral cleaner and rinse thoroughly Clean the bin liner using a neutral cleaner Rinse thoroughly after cleaning 57 3 Air Filter air cooled model only A plastic mesh air filter removes dirt or dust from the air and keeps the condenser from getting clogged As the filter gets clogged the icemaker s performance will be reduced Check the filter at least twice a month When clogged use warm water and a neutral cleaner to wash the filter 4 Condenser except water cooled model Check the condenser once a year and clean if required by using a brush or vacuum cleaner More frequent cleaning may be required depending on the location of the icemaker 58
33. mechanical seal may cause water leaks and should be replaced 21 Remove the O ring on the bearing lower 22 Remove the four bolts and the bearing lower from the gear motor Replace the bearing inside the bearing lower if it exceeds the wear tolerance of 0 02 or is scratched Note Replacing the bearing requires a bearing press adaptor If it is not available replace the whole bearing lower Gear Motor 23 Remove the coupling spline on the gear motor shaft 24 Remove the barrier on the top of the gear motor 25 Remove the three socket head cap SOON the gear motor 26 Assemble the removed parts in the reverse order of the above procedure WARNING Be careful not to scratch the surface of the O ring orit may cause water leaks Handle the mechanical seal with care not to scratch nor to contaminate its contact surface 27 When replacing the evaporator a Braze the new evaporator with nitrogen gas flowing at the pressure of 3 4 PSIG b Replace the drier c Check for leaks using nitrogen gas 140 PSIG and soap bubbles d Evacuate the system Charge it with refrigerant For the air cooled and water cooled models see the nameplate for required refrigerant charge and type For the remote air cooled models see the label on the control box 28 Move the flush switch to the ICE position 29 Replace the panels in their correct position 30 Turn on the power supply 47 Mechanical Seal O ring
34. nd close the water supply line shut off valve 2 Remove the clamp and disconnect the hose from the flush water valve Note Water may still remain inside the evaporator Be sure to drain the water into the drain pan 3 Disconnect the terminals from the flush water valve 4 Remove the flush water valve from the bracket 5 Remove the drain pipe from the flush water valve 6 Connect the drain pipe to the new flush water valve and place the valve in position 7 Connect the hose to the flush water valve and secure it with the clamp 8 Pour water into the reservoir and check for water leaks on the flush water valve 9 Open the water supply line shut off valve and turn on the power supply 10 Move the flush switch to the ICE position 11 Check for water leaks 12 Move the flush switch to the FLUSH position and make sure water is flushing 13 Move the flush switch to the ICE position 14 Replace the panels in their correct position 50 VII Cleaning and Maintenance IMPORTANT Ensure allcomponents fasteners andthumbscrews are securely in place after any maintenance or cleaning is done to the equipment 1 Preparing the Icemaker for Long Storage WARNING When shutting off the icemaker for an extended time drain out all water from the water line and remove the ice from the storage bin The storage bin should be cleaned and dried Drain the icemaker to prevent damage to the water supply line at sub freezing tempe
35. not leave the system open for longer than 15 minutes when replacing or servicing parts 1 Service for Refrigerant Lines a Refrigerant Recovery The icemaker unit is provided with two refrigerant access valves one on the low side and one on the high side line Using proper refrigerant practices recover the refrigerant from the access valves and store it in an approved container Do not discharge the refrigerant into the atmosphere b Evacuation and Recharge R 404A 1 Attach charging hoses a service manifold and a vacuum pump to the system Be sure to connect charging hoses to both high side and low side 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 Never allow the oil in the vacuum pump to flow backward 3 Allow the vacuum pump to pull down to a 29 9 Hg vacuum Evacuating period depends on pump capacity 39 4 Close the low side valve and high side valve on the service manifold 5 Disconnect the vacuum pump and attach a refrigerant service cylinder to the high side line Remember to loosen the connection and purge the air from the hose See the nameplate for the required refrigerant charge Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard No 700 88 be
36. quid proof gloves to prevent the cleaning and sanitizing solutions from coming into contact with skin a Cleaning Solution Dilute 4 8 fl oz 142 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc with 0 8 gallons 3 I of warm water This is a minimum amount Make more solution if necessary IMPORTANT For safety and maximum effectiveness use the solution immediately after dilution 52 b Cleaning Procedure The cleaning process will remove lime deposits from the water system 1 Remove the front panel and top panel then turn off the power supply 2 Close the water supply line shut off valve 3 Remove all ice from the storage bin 4 Move the flush switch to the FLUSH position 5 Turn on the power supply and drain out all water from the water line 6 Turn off the power supply 7 Remove the strap connecting the spout to the chute assembly 8 Remove the thumbscrews securing the spout and lift it off 9 Pour the cleaning solution over the extruding head until the evaporator assembly and the reservoir are filled and the solution starts to overflow into the drain pan Note If there is excess scale on the extruding head fill the evaporator assembly and reservoir as described above then use a clamp on the reservoir hose between the reservoir and evaporator assembly to block flow Pour additional cleaning fluid over the extruding head until the evaporator ass
37. r maintenance CONTENTS 5 elige eT 5 MICI M UL MU M 6 tubos pum T 7 F Came RN a ere 8 nus pio tT a usa 9 9 0 9 m nhung eA CT 10 2 Control Box Lay OUl CHORI EHE EAE 11 uum n ee ome een ne ene 11 c huir E rq TR 12 UEM ar 13 1 Water Circuit and Refrigeration RREEPCHE a DINE 13 aun amana a ee eee 13 ree DR 14 2 WB DIE ANS aite ITUR RU HERR dud 15 F 801MAH C DUUM BRI 15 3 Sequence of Electrical aec 16 As Timing TTE 26 S Perforinariee Bald uuu ll 29 0 29 8 30 31 32 IV Adjustment or Components cio pore uu 33 1 Adjustment of Water Regulating Valve water cooled model only 33 2 ot SSI ZG ascii ee uu o OO S OS 34 V Service un 35
38. ratures using air or carbon dioxide Shut off the icemaker until the proper ambient temperature is resumed Air Cooled and Remote Air Cooled Models 1 Run the icemaker with the water supply line shut off valve closed 2 Open the drain valve and blow out the water inlet line by using air pressure 3 Turn off the power supply 4 Remove the front panel 5 Move the flush switch on the control box to the FLUSH position 6 Turn on the power supply and then drain out all water from the water line 7 Turn off the power supply 8 Turn off the power switch on the control box Air or CO2 9 Replace the front panel in its correct position 10 Close the drain valve 11 Remove all ice from the storage bin and clean the bin 51 Water Cooled Models 1 Turn off the power supply and wait for 3 minutes 2 Turn on the power supply and wait for 20 seconds 3 Close the water supply line shut off valve 4 Open the drain valve and quickly blow the water supply line from the drain valve to drain water in the condenser 5 Follow the above steps 3 through 11 in Air Cooled and Remote Air Cooled Models 2 Cleaning and Sanitizing Instructions WARNING 1 HOSHIZAKI recommends cleaning this unit at least once a year More frequent cleaning however may be required in some existing water conditions 2 To prevent injury to individuals and damage to the icemaker do not use ammonia type cleaners 3 Always wear li
39. s and lift off the extruding head 11 Replace the bearing inside the extruding head if it exceeds the wear tolerance of 0 02 or is scratched Note Replacing the bearing requires a bearing press adaptor If it is not available replace the whole extruding head Auger 12 Lift off the auger Ifthe area in contact with the bearing is worn out or the blade scratched replace the auger Evaporator Note Skip the following steps 13 through 15 when the evaporator does not need replacement 45 13 Recoverthe refrigerant and store itin an approved container if required by an applicable law IMPORTANT Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repairs or replacement have been made 14 Remove the bulb of the expansion valve 15 Disconnect the brazing connections of the expansion valve and the copper tube low side from the evaporator using brazing equipment 16 Remove the two truss head machine screws and the strap securing the evaporator 17 Disconnect the three hoses from the evaporator 18 Remove the four socket head cap screws securing the evaporator with the bearing lower 19 Lift off the evaporator Bearing Lower and Mechanical Seal 20 The mechanical seal consists of two parts One moves along with the auger and the other is fixed on the bearing lower If the contact surfaces of these two parts are worn or scratched the
40. used 6 A liquid charge is recommended for charging an R 404A system Invert the service cylinder Open the high side service manifold valve 7 Allow the system to charge with liquid untilthe pressures balance 8 If necessary add any remaining charge to the system through the low side Use throttling valve or liquid dispensing device to add the remaining liquid charge through the low side access port with the unit running 9 Close the two refrigerant access valves and disconnect the hoses and service manifold 10 Cap the access valves to prevent a possible leak 2 Brazing DANGER Refrigerant R 4044 itself is not flammable at atmospheric pressure and temperatures up to 176 F Refrigerant 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 Always recover the refrigerant and store it in an approved container Do not discharge the refrigerant into the atmosphere Do not use silver alloy or copper alloy containing arsenic Do not use R 404A as a mixture with pressurized air for leak testing Refrigerant leaks can be detected by charging the unit with a little refrigerant raising the pressure with nitrogen and using an electronic leak detector 40 3 Removal and Replacement of Compressor IMPORTANT Always install a new drier every time the seale
41. x 15 Connect the terminals to the compressor and replace the terminal cover in its correct position 16 Replace the panels in their correct position and turn on the power supply 4 Removal and Replacement of Drier IMPORTANT Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repairs or replacement have been made 1 Turn off the power supply and remove the panels 2 Recover the refrigerant and store itin an approved container if required by an applicable law 3 Remove the drier using brazing equipment 4 Install the new drier with the arrow on the drier in the direction of the refrigerant flow Use nitrogen gas at the pressure of 3 4 PSIG when brazing the tubings 5 Check for leaks using nitrogen gas 140 PSIG and soap bubbles 6 Evacuate the system and charge it with refrigerant For the air cooled and water cooled models see the nameplate for the required refrigerant charge and type For the remote air cooled models see the label on the control box 7 Replace the panels in their correct position and turn on the power supply 42 5 Removal and Replacement of Expansion Valve IMPORTANT Sometimes moisture in the refrigerant circuit exceeds the drier capacity and freezes up at the expansion valve Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all
42. y 17 Drain out all water from the water line See 2 and 3 18 Move the flush switch to the ICE position and run the icemaker 19 Turn off the power supply after 30 minutes 20 Pour warm water into the storage bin to melt all ice and then clean the bin liner with the solution 21 Flush out any solution from the storage bin 22 Turn on the power supply and start the automatic icemaking process IMPORTANT 1 After cleaning do not use ice made from the sanitizing solution Be careful not to leave any solution in the storage bin 2 Follow carefully any instructions provided with the bottles of cleaning or sanitizing solution 3 Never run the icemaker when the reservoir is empty 56 3 Maintenance IMPORTANT 1 This icemaker must be maintained individually referring to the instruction manual and labels provided with the icemaker 2 To have the optimum performance of this icemaker the following consumable parts need periodical inspection maintenance and replacement Extruding Head Housing Gear Motor Auger Mechanical Seal These parts should be inspected at least once a year or every 10 000 hours of operation Their service life however depends on water quality and environment More frequent inspection and maintenance are recommended Consult with your local distributor about inspection and maintenance service To obtain the name and phone number of your local distributor call Hoshizaki Technica
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