Hoshizaki DBF-40SAC Service Manual Download Page 28 | Manualshive

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26

6) Electrode positioning

When attaching electrode, check the distance

from the tank inner wall to the end of the longer

electrode. Make sure the bracket is straight.

Evaporator

Bracket

Electrode

Electrode Assy

41±1mm

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Summary of Contents for DBF-40SAC

Page 1: ...SERVICE MANUAL HOSHIZAKI DRAFT BEER DISPENSER DBF 40SAC NO B074 931 ISSUED FEB 7 2014 REVISED MODEL Australia...

Page 2: ...ming 7 large bubbles 8 Beer tastes strange watery 9 Cylinder runs out of gas easily 10 Cooling water mixed with beer comes out of overflow pipe on unit front 11 Beer tap joint leaks beer 12 Unit leaks...

Page 3: ...lectric shocks 3 If the unit must be energized for inspection of the electric circuit use rubber gloves to avoid contact with any live parts resulting in electric shocks 4 Keep the following in mind w...

Page 4: ...ng closed end connectors or the like with their closed ends up to avoid entrance of moisture that could lead to electric leaks or fire 6 After servicing always use a megohmmeter 500V DC to check for t...

Page 5: ...pushes refrigerant out 2 Condenser exchanges heat 3 Temperature of evaporator decreases to freeze water in the cooling water tank 4 Beer is chilled by going through the beer coil inside the cooling wa...

Page 6: ...4 3 DIMENSIONS SPECIFICATIONS...

Page 7: ...the above operations until the power supply is turned off Timing chart Power supply 240V AC Controller compressor and fan motor Agitator motor Ice storage and electrode Power on 1 Sufficient ice stor...

Page 8: ...thout becoming ice This is called supercooling When enough calories are stored in water the water instantly freezes by the vibration such as the vibration of agitator motor impeller Water will crystal...

Page 9: ...y Fuse 5A Electrode XA connector 3P Transformer XA connector 5P AC 100V input VH connector 7P INPUT OUTPUT LAYOUT Grounding VH connector 2P Thermistor electrode detection setting XA connector 9P Not i...

Page 10: ...8 Transformer 240V AC Fan Motor Compressor Short electrode Long electrode Electrode Ice storage detector INPUT OUTPUT CIRCUIT...

Page 11: ...9 3 WIRING DIAGRAM...

Page 12: ...10 5 REFRIGERATION CIRCUIT Heat exchange Capillary tube Compressor Drier Condenser Condenser fan motor Agitator motor Evaporator...

Page 13: ...5 Underfoaming 6 Overfoaming 7 Large bubbles 8 Beer tastes strange watery CO2 cylinder 9 Cylinder runs out of gas easily Leak 10 Cooling water mixed with beer comes out of overflow pipe on unit front...

Page 14: ...ontact 1 8 2 Repair 1 8 3 Damaged controller board 1 8 4 Damaged transformer 1 8 3 Replace See page 20 1 8 4 Replace 1 9 Defective compressor 1 9 Replace 1 10 Clogged condenser 1 10 Clean condenser 1...

Page 15: ...e Extend vacuum pump operation to raise vacuum 2 Clogged capillary tube 2 Replace heat exchanger and drier If clogged ice may start forming in the middle of capillary tube 3 Poor ventilation 3 Poor ve...

Page 16: ...ixed with beer will be entirely frozen Repair leaks and replace cooling water 3 Beer tap will not move smoothly 3 Disassemble and clean beer tap If beer tap still will not move smoothly replace 4 No C...

Page 17: ...s pressure too low 1 Adjust CO2 gas pressure to proper level The chart below is a general example Adjust to gas pressure specified by beer manufacturers Temperature of beer keg CO2 gas pressure 50 F 1...

Page 18: ...3 Beer is dispensed with foam remaining in mug 5 4 Dirty mug 5 1 Tilt mug and contact its inner wall with nozzle end to let beer run down wall 5 2 Instruct user on proper dispensing operation fully op...

Page 19: ...to store mugs in clean place 4 Improper dispensing manner e g let beer directly hit mug bottom 4 Tilt mug and let beer run down its inner wall to minimize inclusion of air 8 Beer tastes strange watery...

Page 20: ...Replace gasket 1 4 Securely tighten gas hose joint Leak 10 Cooling water mixed with beer comes out of overflow pipe on unit front Possible Cause Remedy 1 Beer leaking from joint nut on beer coil conn...

Page 21: ...and check fan for proper movement If burnt out replace condenser fan motor 15 After unit is turned on refrigeration circuit clicks every 3 5 minutes Condenser fan motor is running but beer is not col...

Page 22: ...the controller board Also keep things that produce static electricity e g vinyl bag or plastic product away from controller board 3 Do not touch the electronic devices on the controller board or the...

Page 23: ...ng away from the fan and piping 4 Do not damage piping to avoid CO2 gas leak from the refrigerant pipe connections 5 Before welding the evaporator fill the water tank with water to prevent deformation...

Page 24: ...ut cabinet Top Cover Fixed with two screws Drain Outlet Control Box Fixed with two screws Agitator Motor Fixed with four screws Water Tank Base Compressor Fixed with two bolts Fan Motor Drier Leg Beer...

Page 25: ...23 3 Sectional side view Fan Motor Ice Guard Compressor Evaporator Holder Evaporator Beer Coil Agitator Motor Electrode Wire Condenser...

Page 26: ...24 4 Sectional front view Evaporator Holder Beer Coil Evaporator Ice Guard Agitator Motor Side Panel Water Tank...

Page 27: ...ecuring the left and right side panels 2 Remove the two screws securing the top cover 3 Lift up and remove the top cover by opening the side panels to both sides To prevent damage do not open the side...

Page 28: ...ctrode positioning When attaching electrode check the distance from the tank inner wall to the end of the longer electrode Make sure the bracket is straight Evaporator Bracket Electrode Electrode Assy...

Page 29: ...emoving the joint nut replace the taper gasket 4Y8219R01 to prevent beer leakage When tightening the joint nut have the joint nut straight against the central axis of tap base and tighten the joint nu...

Page 30: ...t be positioned 60 mm above the top of evaporator holder 8 Fan motor Attach the fan blade with attachment side stamping and rotating direction stamping to the motor side on back side of the above pict...

Page 31: ...new fuse in the reverse order of the removal procedure 11 Fuse holder 1 Disconnect the tab terminal and remove the nut securing the fuse holder 2 Install the new fuse holder in the reverse order of th...

Page 32: ...ndy flux to braze pipes Disconnect the two brazed parts of pipes at the top of wire condenser and replace with a new wire condenser Then eliminate the flux residue by using Scotch Brite or sandpaper a...

Page 33: ...g foam Slider Gasket foam Gasket liquid Valve shaft Air vent Beer dispensing nozzle Air vent Spring add foam Foam dispensing nozzle Beer Tap Cross Section Small hole When dispensing foam beer goes thr...

Page 34: ...push the lever toward the unit The spring shrinks to create a gap between the gasket foam and the slider Beer goes through the hole in the valve shaft and becomes foam by going through the small gap...

Page 35: ...covering with braided hose may cause deformation or damages Do not reuse deformed or damaged parts Reusing deformed or damaged parts may cause beer leak slow movement of the tap lever or the entrance...

Page 36: ...aching the gasket to the cylinder B Assembling valve shaft Be sure to hold the cylinder A at the part covered with braided hose with a pliers and reverse the above procedures for assembling Do not use...

Page 37: ...eeze beer inside beer coil preventing beer from being dispensed properly How to make cooling water with 100 300 S cm of E C The capacity of the water tank of this unit is approx 16 L Make the cooling...

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