Hoshizaki HR24A User's Manual
Contents
1. Hwy 74 S Peachtree City GA 30269 USA TEL 770 487 2331 FAX 770 487 3360 www hoshizaki com 91A3PA10C2. Peachtree City GA 30269 Attn Hoshizaki Technical Support Department NOTE To expedite assistance all correspondence communication MUST include the following information e Model Number e Serial Number e Complete and detailed explanation of the problem IMPORTANT This manual should be read carefully before the unit is installed and operated Read the warnings and guidelines contained in this booklet carefully as they provide essential information for the continued safe use and maintenance of the unit Retain this booklet for any further reference that may be necessary CONTENTS Important Safety Information cz ea een nel 4 l Installation Instructions ss ea ae an errang ihre 6 A Checks Before Installation u 44444nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenn 6 Bs NN MN tect tees wp cta reenact RUE NE EIERN E E R ERLTORR TEASER eas 6 General esa A E E 6 2 Built In Installation Site ss iccss ccannncmamcnsisc ccdecednsnsnsnensantdexcsexincrineitatadsuadsddnenanandaavereceinaeens 7 EM Boloa n ENEE EEE E E E E E A E E HIERHER 8 D 110 cane A ERE E E R Aanlotgn ee nentie 9 E Electrical CONNSCH mann aan iakedaenshonandceleintaicsnskgnesadeeeeetates 10 F Anal Checklist esserne ERRER EER E ERER E 11 N Opezalingln ttuch nsz ee ee eosnauaecoeeeinsncence 12 A Important Notes About Usage z22snnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnee nennen 12 2 06 10 11 0ER e E ET TEEV
3. circuit electric shock corrosion or failure e Before using a sanitizer such as inert soap and sodium hypochlorite chlorine bleach thoroughly read the manufacturer s instructions on its proper usage IMPORTANT e To prevent damage to the plastic surfaces do not use the following thinner benzine alcohol petroleum soap powder polishing powder alkaline cleaner acid scouring 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 e 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 should be wiped up promptly to avoid unpleasant odors The cabinet interior should be cleaned periodically with a mild soap or detergent and warm water 3 Door Gasket Door gasket should be cleaned regularly with mild soap and warm water to remove dirt and grease 4 Shelves Remove and clean regularly 17 B Maintenance 1 Condenser Check the condenser once a year and use a brush or vacuum cleaner to clean the condenser as required 2 Power Supply Connection If the plug or power cord is damaged contact your local Hoshizaki Certified Service Representative immediately and ask for repairs All other service should be performed in accor
4. may adversely affect safety performance component life and warranty coverage IMPORTANT At startup there is a 2 minute delay before the compressor starts 1 Plug the unit into the electrical outlet WARNING If you have to slide the unit back for a built in installation make sure you do not damage or pinch the power cord 2 Press and hold the power button for 2 seconds to turn on the unit See Fig 3 3 Allow the unit to cool down prior to stocking it C Cabinet Temperature 1 Temperature Display The cabinet temperature is displayed on the control panel The display is in F 2 Adjusting the Temperature Setpoint If necessary adjust the temperature setpoint temperature as follows 1 To change the temperature setpoint press and hold the P button until the compressor icon flashes 2 Press the or button until the desired value is displayed 3 Press the P button to save the temperature setpoint and return to the cabinet temperature display If no button is pressed for 15 seconds after selecting the setpoint the display returns to the current cabinet temperature and the temperature setpoint is saved The temperature setpoint is adjustable between 34 F and 52 F The factory default is 39 F un tg u p Power Display Button Button Button Button Fig 3 Control Panel HHH 1 t i Fi Alarm Compressor Defrost Evaporator Fan D Display Icons Display icons inform you of energized comp
5. technician startup or 1 hour after setpoint has been achieved for the first time setpoint temperature by 10 F for more than 1 hour Door Open Close the door Door has been open for more than 10 minutes Cabinet Thermistor Malfunction Alarm Contact a qualified service technician Low Temperature Alarm If obvious corrections do not bring the AL temperature back in range contact a Cabinet temperature has remained below the qualified service technician Cabinet thermistor has failed Unit cycles 10 min on 10 min off 14 1 Silencing High Temperature Low ee and Door Alarms To silence the alarm press the or button For d door alarm the alarm cn once the door is closed or the or button is pressed 2 Clearing High Temperature and Low Temperature Alarms For AH and AL alarms the red alarm icon A and AH or AL continue to alternate with cabinet temperature after alarm is silenced When the temperature returns to setpoint follow the steps below to clear the alarm 1 Press and hold the button until EnS appears on the a 2 Press the or button two times fue pressing the or button the first time LS is depieyad After pressing the or button the ay time rLS is displayed 3 Press the P button 4 Press the or button to set the display to 149 5 Press the P button The display flashes for 4 seconds The alarm is then clear and the control board retu
6. unit comes with 2 lower shelves and 1 upper shelf Adjust shelf positions as needed lop Trim Leg Toe Kick E Electrical Connection A WARNING e Electrical connection must meet national state and local electrical code requirements Failure to meet these code requirements could result in death electric shock serious injury fire or severe damage to equipment e This unit requires an independent power supply See the nameplate for proper voltage and breaker fuse size Failure to use a proper breaker or fuse can result in a tripped breaker blown fuse or damage to existing wiring This could lead to heat generation or fire e THIS UNIT 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 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 follow these instructions may result in death electric shock or fire e Do not use an extension cord e Turn off the unit before unplugging to redu
7. ARNING e This unit must be installed in accordance with applicable national state and local codes and regulations e This unit is heavy Use care when lifting or positioning Work in pairs when needed to prevent injury or damage e Do not tilt the unit more than 45 A Checks Before Installation e Visually inspect the exterior of the shipping package and immediately report any damage to the carrier Upon opening the package any concealed damage should also be immediately reported to the carrier e Remove the shipping carton tape and packing material Also remove the protective plastic film from both the exterior panels and the interior door panel If the unit is exposed to the sun or to heat remove the film after the unit cools e Remove all accessory containers before discarding the packing materials B Location 1 General This unit is approved for indoor or outdoor use NOTICE Normal operating ambient temperature must be within 61 F to 95 F 16 C to 35 C Operation of the unit for extended periods outside of this normal temperature range may affect unit performance For best operating results e The unit should not be located next to ovens grills or other high heat producing equipment e The location should provide a firm and level foundation for the unit e The unit should not be located in a corrosive environment e The unit must have a minimum of 1 3 cm clearance at bottom and top Air m
8. EUTVREUNLOEREOELOIN TRETEN 13 C Cabinet Temperature unsern sciastannen nennen hen ee cuandalansashiousdendasnsnensucnntxcotecie 13 1 Temperature Display este Sennusadexsasaduckshuidcetsdecasubacheuscccetaces 13 2 Adjusting the Temperature Setpoint uuun4444nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 13 Te DISpIaY ICONS tea re rene ERT POT EE Ont M Crerer tert ye rere rn preT rer rt Pret Tene EAEE Ee Ea rere an 14 BPMN as eM MN Sy tna acct einnehmen bean ded hse one 14 F Control Panel LOCK GUE sacsiatde eatin ce cttcescceusentdeetndudasksansysdesanatuagasusasuacat ceaccosastoaseeastnensbens 15 G DOOr Bo or lt peeere me tee Dn Oe EIER R IR NRRRDEAESEN 15 He DENOS enedes ta amp nc e E e taste uiaeceeeteees 15 1 Automatic SI OSE ass stcctikic tute ant eeantoraatsarc indicat mamanieuma sdeenaninebsndaamsaskstatstneeinananincadbesnianss 15 2 Manual Defrost ass cctecticasa s exec ce chalvanucdectncnsduntalwencuadaue vecnusateunacaducusettaesccesesuadsseuscscetncts 15 l Cooling Performance a een 16 J Cabinet Condensation nee ea detatetatnenckeashandiaderddaes cugesueisiateteene 16 K POwer Outage 2 nee een re iger ee ikea eher 16 III Cleaning and Maintenance Instructions 4 40or4nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 17 A VS ANU ee ee een 17 EM AMS RMR sachet EEE ARE E T E N A 18 IV Preparing the Unit for Periods of Non Use unsnnnnnennnnnnnnnnnnnnn anna 19 A Shutdo
9. Hoshizaki America Inc Undercounter Refrigerator Model HR24A INSTRUCTION MANUAL A Superior Degree of Reliability www hoshizaki com Issued 1 12 2014 A WARNING Only qualified service technicians should install and service the unit To obtain the name and phone number of your local Hoshizaki Certified Service Representative visit www hoshizaki com No installation or service should be undertaken until the technician has thoroughly read this Instruction Manual Likewise the owner manager should not proceed to operate the unit until the installer has instructed them on its proper operation Failure to install operate and maintain the equipment in accordance with this manual will adversely affect safety performance component life and warranty coverage 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 installation maintenance and service of the unit 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
10. aker blown fuse or damage to existing wiring This could lead to heat generation or fire e THIS UNIT 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 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 e Do not use an extension cord e Turn off the unit before unplugging to reduce the risk of electric shock e To reduce the risk of electric shock do not touch the plug with damp hands e Do not use a unit 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 unit be sure to pull the plug not the cord and do not jerk the cord e Do not make any alterations to the unit Alterations could result in electric shock injury fire or damage to the unit A WARNING continued e This 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 instruction concerning use of the appliance by a person responsible for their safety e Ch
11. ce the risk of electric shock e To reduce the risk of electric shock do not touch the plug with damp hands e Do not use a unit 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 unit be sure to pull the plug not the cord and do not jerk the cord e The GREEN ground wire in the factory installed power cord is connected to a grounding terminal under the top panel If it becomes necessary to remove or replace the power cord be sure to connect the power cord s ground wire upon reattachment e Usually an electrical permit and services of a licensed electrician are required e The maximum allowable voltage variation is 10 percent of the nameplate rating 10 F Final Checklist 1 Is the unit level 2 Is the unit in a site where the ambient temperature is within 61 F to 95 F 16 C to 35 C all year around 3 Is there at least 1 3 cm clearance at bottom and top Is air able to circulate freely under behind and above the unit 4 Have the shipping carton tape and packing material been removed from the unit Has the protective plastic film been removed from both the exterior panels and the interior door panel 5 Have the unit and accessories been checked for shipping damage 6 Has the power supply voltage been checked or tested against the nameplate rating Is the power supply a properly
12. children or animals to do so Do not climb into the unit or allow children or animals to do so Death or serious injury could occur or the unit could be damaged e Be careful not to pinch fingers when opening and closing the door Be careful when opening and closing the door when children are in the area e Do not use combustible spray or place volatile or flammable substances near the unit They might catch fire e Keep the area around the unit clean Dirt dust or insects in the unit could cause harm to individuals or damage to the equipment e Do not throw anything onto the shelves or load any single shelf with more than 88 Ib 40 kg of product They might fall off and cause injury NOTICE e Keep ventilation openings in the appliance enclosure or in the built in structure clear of obstruction Do not place anything on top of the unit Blockage of airflow could negatively affect performance and damage the equipment e Do not tightly pack the cabinet Allow some space between items to ensure good air flow Also allow space between items and interior surfaces e Do not store items near the air outlet They might freeze up and crack or break e To prevent deformation or cracks do not spray insecticide onto the plastic parts or let them come into contact with oil e To avoid damage to the gasket use only the door handle when opening and closing 12 B Startup A WARNING All parts are factory adjusted Improper adjustments
13. dance with the Hoshizaki Service Manual by a qualified service technician 18 IV Preparing the Unit for Periods of Non Use A Shutdown and Long Storage When shutting down the unit for more than one week follow the instructions below A WARNING When preparing the unit for long storage prevent the door from closing to reduce the risk of children getting trapped Leave the shelves in place so that children may not easily climb inside IMPORTANT When preparing the unit for long storage clean the cabinet interior door gaskets and shelves See III A Cleaning for details 1 Before shutting down the unit move all items into another refrigerator 2 Press and hold the power button for 2 seconds to turn off the unit 3 Unplug the unit WARNING To reduce the risk of electric shock do not touch the plug with damp hands 4 WARNING Prevent the door from closing to reduce the risk of children getting trapped Leave the shelves in place so that children may not easily climb inside B Disposal A WARNING When preparing the unit for disposal remove the door to reduce the risk of children getting trapped Leave the shelves in place so that children may not easily climb inside This unit 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 HOSHIZAKI AMERICA INC 618
14. grounded independent 3 prong wall outlet Does the electrical connection meet all national state and local code and regulation requirements 7 Have the toe kick top trim and shelves been properly installed 8 Has the end user been given the instruction manual and instructed on how to operate the unit and the importance of the recommended periodic maintenance 9 Has the end user been given the name and telephone number of an authorized service agent 10 Has the warranty card been filled out and forwarded to the factory for warranty registration 11 ll Operating Instructions A Important Notes About Usage A WARNING e Only qualified service technicians should install and service the unit e Failure to install operate and maintain the equipment in accordance with this manual will adversely affect safety performance component life and warranty coverage e Turn off the unit before unplugging to reduce the risk of electric shock e To reduce the risk of electric shock do not touch the plug with damp hands e This 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 instruction concerning use of the appliance by a person responsible for their safety e Children should be properly supervised around this appliance e Do not climb stand or hang on the unit or door or allow
15. gs D Setup 1 Install the Toe Kick 1 Remove the plastic film from the toe kick 2 Block the rollers to prevent the unit from rolling See Fig 2 Tilt the unit back NOTICE Protect the floor Do not tilt the unit more than 45 Support the unit so it does not topple over 3 Clean the toe kick attachment area with a clean soft cloth using a mild soap to remove any oil or dirt Dry the toe kick attachment area thoroughly with a clean soft cloth 4 Peel off the liner from the double sided tape on the toe kick 5 Attach the toe kick to the bottom of the unit 6 Apply firm pressure along the base of the toe kick to secure it in position 2 Install the Top Trim To achieve a built in look when installing in a cabinet application the top trim can be installed To install the top trim follow the directions below 1 Remove the plastic film from the top trim 2 Clean the unit s top panel with a clean soft cloth using a mild soap to remove any oil or dirt Dry the top panel thoroughly with a clean soft cloth 3 Peel off the liner from the double sided tape on the top trim 4 Attach the top trim to the top panel 5 Apply firm pressure along the base of the trim to secure it in position 3 Position and Level the Unit Position the unit in its permanent location Level the unit by adjusting the legs NOTICE Do not remove the legs The legs are necessary to maintain proper clearance for airflow 4 Adjust the Shelves The
16. ildren should be properly supervised around this appliance e Do not climb stand or hang on the unit or door or allow children or animals to do so Do not climb into the unit or allow children or animals to do so Death or serious injury could occur or the unit could be damaged e Be careful not to pinch fingers when opening and closing the door Be careful when opening and closing the door when children are in the area e Do not use combustible spray or place volatile or flammable substances near the unit They might catch fire e Keep the area around the unit clean Dirt dust or insects in the unit could cause harm to individuals or damage to the equipment NOTICE e Protect the floor when moving the unit to prevent damage to the floor e Keep ventilation openings in the appliance enclosure or in the built in structure clear of obstruction Do not place anything on top of the unit Blockage of airflow could negatively affect performance and damage the equipment e Do not tightly pack the cabinet Allow some space between items to ensure good air flow Also allow space between items and interior surfaces e Do not store items near the air outlet They might freeze up and crack or break e To prevent deformation or cracks do not spray insecticide onto the plastic parts or let them come into contact with oil e To avoid damage to the gasket use only the door handle when opening and closing l Installation Instructions A W
17. is properly installed and located for optimum cooling performance If cooling performance is not at its optimum level check the following items e Door opened too often e Door left open Close e Too tightly packed or cabinet air inlet outlet blocked Allow some space between items to ensure good air flow e Ambient temperature too high Avoid installation near high heat producing equipment or exposure to direct sunlight e Temperature setpoint too high Readjust it to a lower temperature e Unit in defrost process The cabinet temperature may rise temporarily during the defrost cycle but this will not affect the items inside J Cabinet Condensation In the event condensation develops on the cabinet exterior check the following items e Door left open close e Ambient humidity too high In high humidity areas it may be necessary to wipe off the cabinet frame occasionally K Power Outage In the event of a power outage the unit will come back on if it was on at the time of the power outage The unit will stay off if it was off at the time of the power outage 16 lll Cleaning and Maintenance Instructions A Cleaning A WARNING e Before cleaning the unit turn off and unplug the unit to prevent electric shock by unexpected entrance of water into the unit or injury by moving parts e Before cleaning the unit move all items into another refrigerator e Do not splash water directly onto the unit This might cause short
18. onents and if the unit is in alarm Display Icons Compressor Steady Compressor running Flashing Compressor delay timer Compressor will start within 3 minutes e In temperature setpoint adjustment mode For temperature setpoint adjustment see II C 2 Adjusting the Temperature Setpoint Defrost Unit is in defrost cycle See II G Defrost for details Evaporator Fan Evaporator fan is running Evaporator fan is de energized when door is open Alarm Unit is in alarm See II E Alarm Safeties for details E Alarm Safeties Alarm signals are designed to protect the unit and items inside These alarms give information or warnings in the event the unit is operating out of acceptable parameters Should one of the alarms occur follow the instructions below to address the alarm The alarm icon appears on the display and the alarm code alternates with the cabinet temperature For high temperature low temperature and door alarms the unit beeps in addition to displaying the alarm icon and alarm code To obtain the name and phone number of your local Hoshizaki Certified Service Representative visit www hoshizaki com Alarm Signals Alarm Code Corrective Action High Temperature Alarm If obvious corrections such as closing the door and cleaning the condenser do not Cabinet temperature has exceeded the setpoint bring temperature back in range contact a temperature by 10 F for more than 2 hours after qualified service
19. rns to normal operation Note If the cabinet temperature is out of acceptable range the procedures above only change the alarm icon from flashing to steady for 15 minutes F Control Panel Lockout The control panel can be locked to help prevent the unit 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 To unlock the control panel press and hold the button and the power button until UnL appears briefly on the display G Door Lock The unit has a door lock located under the control panel to help prevent unauthorized access to the cabinet interior Two keys are provided in the accessory bag H Defrost 1 Automatic Defrost This unit uses an off cycle time initiated time terminated defrost It defrosts once every 6 hours for 30 minutes During defrost the defrost icon appears on the display The compressor is de energized and the evaporator fan runs normally The cabinet temperature is displayed during defrost 2 Manual Defrost To initiate a manual defrost press and hold the button until the defrost icon appears on the display Defrost lasts for 30 minutes During defrost the defrost icon appears on the display The compressor is de energized and the evaporator fan runs normally The cabinet temperature is displayed during defrost 15 I Cooling Performance Be sure the unit
20. t interfere with the upper hinge or top panel bracket and will not fall 3 While maintaining a hold on the door remove the fasteners securing the upper hinge to the right side of the unit Lift off the door and upper hinge 4 Remove the top panel bracket from the left side of the unit then secure it to the right side of the unit 5 Remove the 2 outside plastic plugs from the lower left side of the unit 6 Remove the lower hinge from the right side of the unit then secure it to the left side of the unit 7 Place the 2 plastic plugs in the holes on the lower right side of the unit 8 Remove the plastic plugs and the handle from the door 9 Secure the handle to the right side of the door Place the plugs in the open handle holes on the left side of the door and in the hinge hole on the right side of the door 10 Place the door onto the lower hinge then place the upper hinge in the door and secure to the left side of the unit 11 Make sure the door is level If not adjust the door using the slots in the hinges 12 Check that the wiring is connected and routed properly then replace the top panel in its correct position Secure the top panel Plastic Plugs Top Panel Top Panel Bracket Upper Hinge H ra Control Panel Fig 1 andle Door Switch Lower Hinge ji ee a So Fab Plastic Plu
21. ust be able to circulate freely under behind and above the unit 2 Built In Installation Site NOTICE e Do not let the weight of the counter rest on the unit There must be at least 1 3 cm clearance between the top of the unit and the bottom of the counter e Do not install the unit in a corner where the door will interfere with other equipment or where the unit cannot be pulled out for service Installation Space HR24A 34 864 mm minimum 24 610 mm minimum 24 1 2 623 mm minimum Between Two Cabinets Between a Cabinet and the End of a Counter Min 34 864 mm Support Do not let the weight of Min 24 the counter rest 610 mm onthe unit There must be at least 1 3 cm clearance between the top of the unit and the bottom of the counter Between a Cabinet and Ina Corner a Wall or Tall Cabinet aa Top Trim Secure Do not let the weight of the counter rest on the unit Oven Refrigerator Toe Kick There must be at least 1 3 cm clearance between the top of the unit and the bottom of the counter C Door Reversal If you would like to reverse the door swing follow the steps below Otherwise skip to section Il D Setup 1 Make sure the unit is off and unplugged 2 Remove the fasteners securing the top panel See Fig 1 Being careful not to pull on the wires to the control panel and door switch lift off the top panel Secure the top panel so that it does no
22. wn and Long Storage une ee aeg rende 19 B ES SA nennen namen Fer E 19 Important Safety Information Throughout this manual notices appear to bring your attention to situations which could result in death serious injury damage to the unit 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 unit or property IMPORTANT Indicates important information about the use and care of the unit A WARNING This unit 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 responsible for injury or damage resulting from improper incorrect and unreasonable use Failure to install operate and maintain the equipment in accordance with this manual will adversely affect safety performance component life and warranty coverage To reduce the risk of death electric shock serious injury or fire follow basic precautions including the following e Only qualified service technicians should install and service the unit e This unit must be installed in accordance with applicable national state and local codes and regulations e This unit requires an independent power supply See the nameplate for proper voltage and breaker fuse size Failure to use a proper breaker or fuse can result in a tripped bre
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