Hoshizaki HR24B Скачать руководство пользователя страница 12 | Manualshive

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C. Display Module Icons

Display module icons inform you of energized components and if the appliance is in
alarm.

Display Module Icons

Icon

Meaning

Compressor

Steady: Compressor running.

Flashing:

•

Compressor delay timer. Compressor starts within 2 min.

•

While adjusting cabinet temperature setpoint. For cabinet temperature setpoint

adjustment, see "II.B Cabinet Temperature and Defrost."
Defrost

Appliance is in defrost cycle. See "II.F.3.10) Defrost" for details.
Evaporator Fan Motor

Evaporator fan motor is running. Evaporator fan motor de-energizes when door is open.
During energy saving mode, evaporator fan motor cycles with compressor. When compressor is
de-energized, evaporator fan motor cycles 1 min. on and 5 min. off.
Alarm

Appliance is in alarm. See "II.I. Alarm Safeties" for details.

D. Control Panel Lockout

The control panel can be locked to help prevent the appliance from being turned off or
the setpoint from being changed inadvertently.
To lock the control panel, press and hold the "-" button and the power button until "Loc"
appears briefly on the display module.
To unlock the control panel, press and hold the "-" button and the power button until
"UnL" appears briefly on the display module.

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Содержание HR24B

Страница 1: ...Models HR24B Undercounter Refrigerator Service Manual Number 73229 Issued 3 6 2019 hoshizakiamerica com ...

Страница 2: ...mproper installation is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the service of this 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 Fa...

Страница 3: ...es 22 J Service Menu 23 III Refrigeration Circuit and Component Service Information 29 A Refrigeration Circuit Service Information 31 B Component Service Information 34 C Door Reversal 34 IV Cleaning and Maintenance Instructions 35 A Cleaning 35 B Maintenance 35 V Preparing the Appliance for Periods of Non Use 36 VI Disposal 37 VII Technical Information 38 A Electrical and Refrigerant Data 38 B Wi...

Страница 4: ...proper service Consult instruction manual service manual before attempting to install or service this product All safety precautions must be followed Dispose of properly in accordance with federal or local regulations Do not place any potential ignition sources in or near the appliance Risque De Feu Ou D Explosion Le Frigorigène Est Inflammable Suivre attentivement les instructions de manipulation...

Страница 5: ...or fire THE APPLIANCE MUST BE GROUNDED The appliance is equipped with a NEMA 5 15 three prong grounding plug to reduce the risk of potential shock hazards It must be plugged into a properly grounded independent 3 prong wall outlet If the outlet is a 2 prong outlet it is your personal responsibility to have a qualified electrician replace it with a properly grounded independent 3 prong wall outlet ...

Страница 6: ...e cooling performance may be reduced Do not tightly pack the cabinet Allow some space between items to ensure good air flow Also allow space between items and interior surfaces NOTICE Protect the floor when moving the appliance to prevent damage to the floor Keep ventilation openings in the appliance enclosure or in the built in structure clear of obstruction Do not place anything on top of the ap...

Страница 7: ...Control Board Condenser Door Door Gasket Start Relay Door Switch Compressor Condensate Drain Pan Power Cord Evaporator Fan Evaporator Cabinet Thermistor Evaporator Fan Shroud Door Lock Drier Capillary Tube Compressor Wire Harness Condensate Drain Line Wire Shelves ...

Страница 8: ...city We reserve the right to make changes in specifications and design without prior notice a Dimensions Additional Dimensions mm in Model Interior Width Interior Height Interior Depth Door Stay Open Position HR24B 460 18 1 2 475 18 3 4 450 330 17 3 4 13 616 24 1 4 b Storage Capacity Storage Capacity Model Interior Storage Capacity ft3 Total Shelf Space ft2 HR24B 3 67 2 26 Top View ...

Страница 9: ...9 B Refrigeration Circuit Evaporator Capillary Tube Compressor Drier Condenser Left Side Perimeter Liquid Line Condensate Pan Evaporator Fan Motor ...

Страница 10: ...erruption To initiate manual defrost press and hold the button until the defrost icon turns on the display module Defrost lasts 30 min Power on EvapFM continues Comp de energized EvapFM energized 3 min Comp run timer starts 30 min DT terminates 6 hr DT starts 2 Cool Down CTh 4 F above setpoint 2 min Comp delay Comp icon flashes during Comp delay CTh warms to 4 F above setpoint Energy Saving Mode 2...

Страница 11: ...ue is displayed 3 Press the P button to save the new CT setpoint and return to the CT display If no button is pressed for 15 sec after selecting the new CT setpoint DM returns to CT display and the new CT setpoint is saved b Manual Defrost To initiate a manual defrost press and hold the button until the defrost icon turns on 30 min DT starts If Comp run time 3 min Comp icon and Comp continue until...

Страница 12: ... motor is running Evaporator fan motor de energizes when door is open During energy saving mode evaporator fan motor cycles with compressor When compressor is de energized evaporator fan motor cycles 1 min on and 5 min off Alarm Appliance is in alarm See II I Alarm Safeties for details D Control Panel Lockout The control panel can be locked to help prevent the appliance from being turned off or th...

Страница 13: ... le frigorigène Risque de feu ou d explosion si la tubulure contenant le frigorigène est perforée suivre les instructions de manutention avec soin Les pièces des composants doivent être remplacées par des pièces et accessoires équivalents L entretien doit être effectué par le personnel de service autorisé par le fabricant afin de minimiser les risques d inflammation attribuables à l installation d...

Страница 14: ...urns on Diagnosis Confirm that F LED is on If not check CB POWER connector for 115VAC If 115VAC is not present check power supply and power cord connection If 115VAC is present and F LED is not on replace CB 6 Press the power button for 2 sec to turn on the appliance 7 Startup EvapFM icon is on and Comp icon is flashing EvapFM energizes 2 min Comp delay timer starts Comp icon flashes until 2 min C...

Страница 15: ... b Manual Defrost Initiation To initiate a manual defrost press and hold the button until the defrost icon turns 30 min DT starts EvapFM continues If Comp run time 3 min Comp icon and Comp continue until 3 min Comp run timer terminates Once 3 min Comp run timer terminates Comp icon turns off Comp de energizes and defrost starts Diagnosis If defrost icon is on confirm that Comp de energizes If not ...

Страница 16: ...nt for ESM to initiate Once 20 min ESM timer terminates EvapFM operates on ESM cycle Diagnosis Confirm 20 min ESM timer terminates Check that EvapFM cycles off with Comp and operates 1 min on and 5 min off when Comp is de energized If not replace CB Legend CB control board Comp compressor CT cabinet temperature DM display module DS door switch DT defrost timer ESM energy saving mode EvapFM evapora...

Страница 17: ... on the control board and display module or the back of the control board or display module Do not change wiring and connections Do not misconnect terminals Do not short out power supply to test for voltage Always replace the whole control board and display module assembly if it goes bad 1 Control Board Layout 2 Display Module Layout DISPLAY MODULE RIBBON CABLE E1 E2 CONTROL BOARD Fig 1 Compressor...

Страница 18: ...nce 8 Check that CT LEDs and EvapFM icon turn on If not check for 115VAC at the POWER connector on CB If 115VAC is not present check power cord and power supply If 115VAC is present and DM is not on F and CT LEDs and EvapFM icon replace CB 9 If F and CT LEDs are on but EvapFM icon is not confirm DS is engaged pushed in contacts open Check across DS for 5VDC If 5VDC is not present check DS activati...

Страница 19: ...resistance varies depending on temperature The control board monitors the resistance to control system operation No adjustment is required In the event the cabinet thermistor reading is out of range Pr1 alarm the compressor operates on a fixed time basis of 10 min on and 10 min off To check thermistor resistance follow the steps below 1 Press the power button for 2 sec to turn the appliance off th...

Страница 20: ...ght The appliance must have a minimum of 1 3 cm clearance at bottom and top Air must be able to circulate freely under behind and above the appliance Check the control board using the steps in II F 3 Control Board Check 1 Appliance Not Cooling Appliance Not Cooling Possible Cause 1 Power Supply a Unplugged off blown fuse or tripped or defective breaker b Loose connection c Not within specification...

Страница 21: ...aporator Fan Motor a Defective 3 Control Board a Defective not operating evaporator fan motor 4 Refrigerant Refrigerant Lines a Gas leak low charge b Refrigerant lines restricted 3 Defrost Fails to Start or Terminate Defrost Fails to Start or Terminate Possible Cause 1 Control Board a Defective ...

Страница 22: ... corrections do not bring the temperature back in range see II E Service Diagnosis Automatically resets when temperature returns to normal Alarm icon flashes until reset manually Ld Door Open Close the door Pr1 Cabinet Thermistor Malfunction Alarm Cabinet thermistor has failed Compressor and evaporator fan motor cycle 10 min on 10 min off a High and Low Temperature Alarm Values AH or AL If an AH o...

Страница 23: ...arranty coverage Note If the display module panel is locked press and hold the button and the power button until UnL appears briefly on the display module a Service Menu Access 1 Enter Service Menu 1 Make sure the appliance is plugged into the electrical outlet and power is on 2 Press and hold the and buttons until PA is displayed 3 Press the P button 0 is displayed Using the button set the displa...

Страница 24: ...ion Do Not Adjust Service Menu Min Max Unit Factory Setting Description r0 0 15 C F 4 F Temperature differential above setpoint for the compressor to turn on r1 99 r2 C F 34 F Minimum cabinet setpoint r2 r1 99 C F 52 F Maximum cabinet setpoint r3 0 1 0 Locked setpoint 0 no 1 yes r4 0 99 C F 0 Energy saving and overcooling Do not adjust r5 0 99 C F 0 r6 0 240 min 30 Compressor Protection Do Not Adj...

Страница 25: ...binet temperature 1 cabinet temperature or setpoint differential 4 F Based on cabinet temperature at defrost initiation d7 0 15 min 0 Drip time Do not adjust d8 0 3 0 Defrost initiation Do not adjust 0 d0 defrost timer is cumulative power on time 1 d0 defrost timer is cumulative compressor run time 2 defrost starts when evaporator temperature d9 for time d0 3 based on evaporator temperature when e...

Страница 26: ...erature A1 A4 99 99 C F 10 Degrees above setpoint for AH alarm when A5 1 Do not adjust A5 0 2 1 AH alarm Do not adjust 0 deactivated 1 A4 relative to setpoint setpoint A4 2 absolute AH occurs at temperature A4 A6 0 240 min 120 AH delay after startup Do not adjust A7 0 240 min 120 Delay for AL or AH alarm to occur after temperature is below A1 or above A4 Do not adjust A8 0 240 min 15 AH delay afte...

Страница 27: ...C F 30 Fan off temperature when F0 set to 3 or 4 Do not adjust F2 0 2 1 Fan operation during defrost Do not adjust 0 disabled 1 enabled 2 dependent on F0 F3 0 15 2 Maximum fan off time when defrost thermistor used F7 99 99 C F 0 Fan on temperature when defrost thermistor used F8 0 1 15 C F 4 F1 differential F9 0 240 sec 0 Energy saving evaporator fan motor delay after compressor shuts off F13 0 24...

Страница 28: ...n 1 normally closed L2 1 120 min 10 Door alarm time delay 1 deactivated L3 1 120 min 1 Evaporator fan motor off time when door is open 1 until door switch engaged L4 0 1 0 Save door alarm 0 no 1 yes L10 0 999 min 20 Energy saving activation After cabinet temperature is reached and door switch remains closed Serial Network Do Not Adjust Service Menu Min Max Unit Factory Setting Description LA 1 247...

Страница 29: ...appliance Risque De Feu Ou D Explosion Le Frigorigène Est Inflammable Suivre attentivement les instructions de manipulation conformément à la réglementation gouvernementale Ne pas utiliser d appareils mécaniques pour dégivrer le réfrigérateur Ne pas perforer la tubulure contenant le frigorigène Risque de feu ou d explosion si la tubulure contenant le frigorigène est perforée suivre les instruction...

Страница 30: ... not use mechanical devices to defrost Use non sparking tools Class B dry chemical fire extinguisher or equivalent must be available Do not pressurize system above 200 PSIG during leak check procedure or prior to evacuating refrigeration system This appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire To re...

Страница 31: ...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 600a as a mixture with pressurized air for leak testing Refrigerant leaks must be repaired ...

Страница 32: ...area that you are working with a flammable refrigerant Do not use silver alloy or copper alloy containing arsenic Be sure the area is clear of refrigerant vapor before brazing 1 Braze repair replace damaged component or fitting 2 Purge with nitrogen gas for 2 min Then braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 5 PSIG NOTICE Always install a new drier every tim...

Страница 33: ...e in the liquid state place the service cylinder on the scales if the service cylinder is not equipped with a dip tube invert the service cylinder then place it on the scales Open the high side valve on the gauge manifold 7 Allow the system to charge with liquid until the proper charge weight is met 8 Close the high side valve on the gauge manifold If charging is complete skip to step 10 9 If nece...

Страница 34: ...racket from the left side of the appliance then secure it to the right side of the appliance 5 Remove the 2 outside plastic plugs from the lower left side of the appliance 6 Remove the lower hinge from the right side of the appliance then secure it to the left side of the appliance 7 Place the 2 plastic plugs in the holes on the lower right side of the appliance 8 Remove the plastic plugs and the ...

Страница 35: ...uring pad and especially those strong cleaners for use on a ventilating fan or a cooking range Also to prevent corrosion do not use sodium hypochlorite chlorine bleach on the stainless steel surfaces Use a clean cloth for cleaning 1 Exterior Wipe the exterior occasionally with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt buildup 2 Cabinet Interior Spills...

Страница 36: ...closing to reduce the risk of children getting trapped IMPORTANT Clean the cabinet interior door gaskets and shelves 1 Before shutting down the appliance move all items into another refrigerator 2 Press and hold the power button for 2 sec to turn off the appliance 3 Unplug the appliance WARNING To reduce the risk of electric shock do not touch the plug with damp hands ...

Страница 37: ...plosion Le Frigorigène Est Inflammable Suivre attentivement les instructions de manipulation conformément à la réglementation gouvernementale Ne pas perforer la tubulure contenant le frigorigène Risque de feu ou d explosion si la tubulure contenant le frigorigène est perforée suivre les instructions de manutention avec soin Éliminer conformément aux règlements fédéraux ou locaux This appliance con...

Страница 38: ...ithout prior notice A Electrical and Refrigerant Data See the nameplate for electrical and refrigerant data The nameplate is located inside the cabinet Electrical and Refrigerant Data Model AC Supply Voltage Amperes Design Pressure PSIG Refrigerant oz HIGH LOW R 600a HR24B 115 60 1 4 360 120 2 80 ...

Страница 39: ...39 B Wiring Diagram ...

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