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Hoshizaki C-100BAF-AD, Service Manual

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Hoshizaki C-100BAF-AD Service Manual Download Page 10

10

III. Technical Information

A. Water Circuit and Refrigeration Circuit

 1. C-100BAF Series

Drier

Condenser 

Fan Motor

Condenser

Compressor

Float-Operated 

Water Valve

Water

Reservoir

Water Level

Suction 

Temperature 

Safety

Gear 

Motor

Evaporator 

Assembly

Water Inlet

Water Supply

Fig. 3

Capillary Tube

Overflow Hose

Suction

Discharge

Summary of Contents for C-100BAF-AD

Page 1: ...Hoshizaki A Superior Degree of Reliability www hoshizaki com Models C 100BAF AD C 100BAF ADDS Self Contained Cubelet Hoshizaki America Inc Number 73180 Issued 10 6 2010 SERVICE MANUAL...

Page 2: ...er Should the reader have any questions or concerns which have not been satisfactorily addressed please call write or send an e mail message to the Hoshizaki Technical Support Department for assistanc...

Page 3: ...PLIANCE MUST BE GROUNDED This unit is equipped with a 3 prong grounding plug to reduce the risk of potential shock hazards It must be plugged into a properly grounded independent wall outlet If the ou...

Page 4: ...ce Data 17 IV Service Diagnosis 18 A Ice Production Check 18 B Diagnostic Procedure 18 C Diagnostic Charts 20 1 No Ice Production 20 2 Low Ice Production 22 3 Other 23 D Optional Drain Pump HS 0248 24...

Page 5: ...ousing 35 6 Removal and Replacement of Gear Motor 36 D Removal and Replacement of Fan Motor 36 E Removal and Replacement of Water Reservoir 37 F Removal and Replacement of Bin Control Thermostat Assem...

Page 6: ...d Steel Rear WEIGHT Net 104 lbs 47 kg Shipping 115 lbs 52 kg without pallet CONNECTIONS ELECTRIC Cord Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Outlet 1 2 FPT ICE MAKING SYSTEM Auger type HARVESTING...

Page 7: ...t Control Box Water Reservoir Evaporator Assembly Gear Motor Upper Rear Panel Suction Temperature Safety Drier Bin Control Thermostat Fig 1 Front Panel Louver Top Panel Power Switch Gear Motor Protect...

Page 8: ...ew Gear Motor Spline Coupling Housing and Lower Bearing O Ring Mechanical Seal Cylinder Auger Extruding Head and Upper Bearing Cutter motionless Insulation Allen Head Cap Screw with Washer Hex Head Bo...

Page 9: ...shuts down the icemaker or power is turned off to the icemaker 2 Bin Control Thermostat Shutdown Ice fills storage bin to level of BC When BC opens GM FM CR and Comp de energize When ice level lowers...

Page 10: ...Circuit 1 C 100BAF Series Drier Condenser Fan Motor Condenser Compressor Float Operated Water Valve Water Reservoir Water Level Suction Temperature Safety Gear Motor Evaporator Assembly Water Inlet Wa...

Page 11: ...11 B Wiring Diagram 1 C 100BAF Series 3W external overload 2 4 3 0A internal external 3W external overload 2 4 3 0A internal external 2 C 100BAF Series with Optional Drain Pump HS 0248...

Page 12: ...wer supplied Gear motor fan motor compressor relay and compressor energize The float operated water valve allows water into the reservoir as needed to continue the ice making process C 100BAF Series 3...

Page 13: ...t Shutdown Ice fills storage bin to level of bin control thermostat Bin control thermostat opens Gear motor fan motor compressor relay and compressor de energize C 100BAF Series 3W external overload 2...

Page 14: ...ion line temperature causes the suction temperature safety to open and shut down the icemaker See the table below for suction temperature safety cut out cut in temperatures Suction Temperature Safety...

Page 15: ...exceeds 2 4 3 0 amps the gear motor protector external overload operates independently to turn off the gear motor The gear motor external overload can be manually reset by pressing the switch on the...

Page 16: ...upper float switch the drain pump safety interrupts power to the icemaker When the water level lowers enough to open the drain pump upper float switch power is restored to the icemaker The pump motor...

Page 17: ...15 1 1 80 27 13 0 9 15 1 1 16 1 1 90 32 13 0 9 17 1 2 18 1 3 PSIG kg cm2 G 100 38 13 0 9 17 1 2 19 1 3 2 310 310 309 312 316 316 316 2 5 5 308 WATER TEMP F C AMBIENT TEMP F C 50 10 70 21 90 32 297 31...

Page 18: ...that allows you to diagnose the electrical system and components Before proceeding check for correct installation adequate water supply minimum of 7 PSIG maximum of 113 PSIG and proper voltage per un...

Page 19: ...the power switch to the OFF position and unplug the unit from the electrical outlet 7 Make any repairs necessary then replace the removed parts in the reverse order of which they were removed 8 Plug t...

Page 20: ...and water valve 2 Open due to evaporator freeze up gear motor not operating 2 Check gear motor operation 3 Bad contacts 3 Check for continuity and replace d Bin Control Thermostat Assembly with integ...

Page 21: ...Overload Thermal Protector 1 Open due to clogged condenser coil 1 Clean condenser coil 2 Open due to condenser fan not operating 2 Check condenser fan for continuity and replace 3 Defective 3 Let com...

Page 22: ...with integrated heater 1 Ambient temperature too cool 1 Increase ambient temperature 2 Bulb out of position 2 Place in position 3 Bad thermostat heater 3 Check and replace See V F Removal and Replace...

Page 23: ...hard by testing install a softener 2 Low refrigerant pressures 2 Check for leaks with a leak detector Check charge Recover repair replace drier evacuate and recharge See V A Service for Refrigerant Li...

Page 24: ...may build up on the float switch Scale on the switch can cause the float to stick In this case the float switch should be cleaned and checked 1 Move the power switch to the OFF position then unplug t...

Page 25: ...oximately 1 pint 500 ml of water is required to close the lower float switch and activate the drain pump The drain pump will turn on automatically and pump out the water 11 To test the operation of th...

Page 26: ...k for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG DO NOT use R 134a as a mixture with pressurized air fo...

Page 27: ...or or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG DO NOT use R 134a as a mixtu...

Page 28: ...15 minutes for replacement or service 1 Move the power switch to the OFF position then unplug the unit from the electrical outlet 2 Remove the upper and lower rear panels front panel and louver See Fi...

Page 29: ...nameplate for the required refrigerant charge 16 Connect the terminals and replace the terminal cover in its correct position 17 Replace the control box louver and panels in their correct positions 1...

Page 30: ...and Lower Bearing Gear Motor Spline Coupling Mechanical Seal Spring Retainer Allen Head Cap Screw O Ring Fig 6 Drain Hose Connection Evaporator Flange Packing Reservoir Hose Connection Spout Allen Hea...

Page 31: ...able replace the entire extruding head and housing 8 Replace the removed parts in the reverse order of which they were removed 9 Plug the unit back in Move the power switch to the ON position 1 Upper...

Page 32: ...head cap screws securing the extruding head and evaporator flange then lift off 12 Place the evaporator flange and new extruding head in place then tighten down the allen head cap screws 13 Open the w...

Page 33: ...nical seal from the old auger and place it on the new auger 14 Install the new auger Replace the cutter extruding head and evaporator flange in their correct positions 15 Open the water supply line sh...

Page 34: ...ing the mechanical seal and lower housing are located later in this procedure 18 Make sure the lower mechanical seal and the O ring are in place then place the evaporator assembly in position Secure t...

Page 35: ...the auger When pulling out the auger the upper part of the mechanical seal should come out with it 12 Remove the allen head cap screws securing the evaporator to the lower housing 13 Raise the evapora...

Page 36: ...from hinge A See Fig 7 5 Remove the top panel 6 Remove the spout 7 Remove the upper rear panel See Fig 9 8 Remove the bolts securing the lower housing to the gear motor Lift the evaporator up slightl...

Page 37: ...rom the reservoir bracket 10 Install the new reservoir onto the reservoir bracket 11 Replace the removed parts in the reverse order of which they were removed Before replacing the rear panel open the...

Page 38: ...the ice discharge opening A Cleaning and Sanitizing Instructions Hoshizaki recommends cleaning and sanitizing this unit at least twice a year More frequent cleaning and sanitizing however may be requ...

Page 39: ...reservoir and evaporator assembly 10 After all of the water has drained replace the drain plug in its correct position 11 Remove the reservoir cover Pour the cleaning solution into the reservoir until...

Page 40: ...ximum effectiveness use the solution immediately after dilution Dilute 1 25 fl oz 37 ml or 2 5 tbs of a 5 25 sodium hypochlorite solution chlorine bleach with 2 5 gallons 9 5 l of warm water This is a...

Page 41: ...our water into the reservoir until it starts to flow through the overflow hose Replace the reservoir cover in its correct position 10 Remove the drain plug to drain the water 11 After all of the water...

Page 42: ...sanitizing instructions provided in this manual See III A Cleaning and Sanitizing Instructions Evaporator Condensate Drain Pan and Gear Motor Drain Pan Wipe down with clean cloth and warm water Storag...

Page 43: ...n to start the automatic icemaking process 2 Condenser Check the condenser once a year and clean if required by following the steps below More frequent cleaning may be required depending on location W...

Page 44: ...ottom of the door slightly then gently remove the door from hinge A See Fig 10 4 Remove the 2 screws securing the top panel then lift it off 5 Remove all ice from the storage bin 6 Remove the screws s...

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