Hoshizaki KM-250BWF User's Manual
Contents
1. beautiful thing HOSHIZAKI SELF CONTAINED CRESCENT CUBER MODELS KM 250BAF KM 250BWF INSTRUCTION MANUAL evercheck ISSUED March 14 2000 REVISED December 22 2004 IMPORTANT Only qualified service technicians should attempt to install service or maintain this icemaker No installation service or maintenance should be undertaken until the technician has thoroughly read this Instruction Manual Likewise the owner manager should not proceed to operate the icemaker until the installer has instructed them on its proper operation HOSHIZAKI provides this manual primarily to assist qualified service technicians in the installation maintenance and service 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 770 487 3360 NOTE Toexpedite assistance all correspondence communication MUST include following information Model Number Serial Number Complete and detailed explanation of the problem Please review this manual It should be read carefully before the icemaker is installed and operated Only qualified service technicians should install service and maintain the i2. Operating Instructions 1 Checks Before Installation IMPORTANT 1 Remove shipping cartons tape s and packing If any are left in the icemaker it will not work properly 2 Ensure all components fasteners and thumbscrews are securely in place 1 Remove the top panel and the front panel to prevent damage when installing the icemaker 2 Remove the package containing the accessories 3 Remove the protective plastic film from the panels If the icemaker is exposed to the sun or to heat remove the film after the icemaker cools 4 Check that the refrigerant lines do not rub or touch lines or other surfaces and that the fan blade turns freely 5 Check that the compressor is snug on all mounting pads 6 See the nameplate on the rear panel and check that your voltage supplied corresponds with the voltage specified on the nameplate 2 Location IMPORTANT This icemaker is not intended for outdoor use Normal operating ambient temperature should be within 45 7 C to 100 38 Normal operating water temperature should be within 45 F 7 C to 90 F 32 Operation of the icemaker for extended periods outside of these normal temperature ranges may affect production capacity For best operating results cemaker should not be located next to ovens grills or other high heat producing equipment Level the icemaker from side to side and front to rear by adjusting the legs Location should prov
3. C all year around 3 Is there atleast 6 15 cm clearance at the rear and top of the icemaker for maintenance or service 4 Have all shipping cartons tape s and packing been removed from the icemaker Is the cube guide in its correct position 5 Are all components fasteners and thumbscrews securely in place 6 Have all electrical and piping connections been made 7 Has the power supply voltage been checked or tested against the nameplate rating And has a proper ground been installed in the icemaker 8 Are the water supply line shut off valve and drain valve installed Has the water supply pressure been checked to ensure a minimum of 10 PSIG 0 7 bar and amaximum of 113 PSIG 7 5 bar Note The icemaker may stop running when the water supply is OFF or if the pressure is below 10 PSIG 0 7 bar When the proper water pressure is reached the icemaker automatically starts running again 9 Have the compressor hold down bolts and refrigerant lines been checked against vibration and possible failure 10 Has the bin control switch been checked for correct operation When the icemaker is running hold an ice cube in contact with the bulb The icemaker should stop within 6 to 10 seconds 11 Has the end user been given the instruction manual and instructed on how to operate the icemaker and the importance of the recommended periodic maintenance 12 Has the end user been given the name and telephone number of an authorized s
4. cemaker This manual should be made available to the technician prior to installation maintenance or service Keep this manual with the icemaker for later reference CONTENTS I SPOCINICALOMS 2252 Hip emo Wr Rp DAN MEME eM cpi 882 Ce uie NR AUDI 4 T Nameplate Bait une me ied onu eot RR bu nt n n bend nd 4 KM 250BAF air cooled ttr db el Petknn or E ER rap RR ox 4 b KM 250BWF water cooled zc i RM HR eu Ead td TUER REM S 5 2 Dimensions Connections rp up Foe ORO ER ERRARE ERI QU nnne 6 a KM 250BA F bu a dM a ues 6 D 250 SR t aea d 7 II Installation and Operating Insir cllonis pana ee beo SR ise ert eae 8 1 Checks Before Installation 262545 LER TR EROR MO NC 8 stet ne Sich Re ERR E 9 3 Electrica ore llo Ei S osos ea ep tt COS Sq pO 9 4 Water Supply and Drain Connections EORR Roe uo DEO e Re not M eee bees 10 5zFirnal Check a E a tpud ird E CORO ORC Kb 12 eee iieri abla E DERART INTR 13 7 Preparing the Icemaker for Long Storage 14 In cleamnda
5. eplace the cap in its correct position 7 Allow the sanitizer to sit for 10 minutes 8 Move the control switch to the WASH position 9 Close the door 10 After 15 minutes move the control switch to the OFF position 11 Open the door 12 Remove the plug to drain the water tank After draining replace the plug in its correct position 13 Repeat 5 through 12 one time then go to 14 18 14 Move the control switch to the ICE position to fill the water tank with water 15 After 3 minutes move the control switch to the OFF position 16 Move the control switch to the WASH position 17 After 5 minutes move the control switch to the OFF position 18 Remove the plug to drain the water tank After draining replace the plug in its correct position 19 Repeat 14 through 18 two times to rinse thoroughly 20 Flush the storage bin with water 21 Move the control switch to the ICE position and start the automatic icemaking process 22 Replace the front panel in its correct position and close the door 19 2 Maintenance IMPORTANT This icemaker must be maintained individually referring to the instruction manual and labels provided with the icemaker 1 Exterior Panels keep the exterior clean wipe 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
6. ervice agent 13 Has the warranty tag been filled out and forwarded to the factory for warranty registration 12 6 Startup CAUTION 1 All parts are factory adjusted Improper adjustments may result in failure 2 If the unit is turned off wait for at least 3 minutes before restarting the icemaker to prevent damage to the compressor 1 Open the water supply line shut off valve 2 Remove the front panel 3 Move the control switch on the control box to the ICE position 4 Run the icemaker for about 10 minutes and move the switch to the OFF position 5 Open the door 6 Remove the plug at the bottom of the water tank to drain the water tank See Fig 2 7 Replace the plug in its correct position 8 Clean the storage bin 9 Move the switch to the ICE position and start the automatic icemaking process 10 Replace the front panel in its correct position 11 Shut the door Plug Fig 2 7 Preparing the Icemaker for Long Storage IMPORTANT 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 using air or carbon dioxide to prevent damage to the water supply line at sub freezing temperatures Shut off the icemaker until the proper ambient temperature is resumed When the icemaker is not used for two or three days itis sufficient to only
7. he drains must have 1 4 fall per foot 2 cm per meter on horizontal runs to get a good flow The drains should not be piped directly to the sewer system An air gap of a minimum of 2 vertical inches 5 cm should be between the end of the drain pipe from the icemaker or the ice bin and the floor drain This icemaker should be installed in accordance with applicable national state and local regulations A plumbing permit and services of a licensed plumber may be required in some areas some areas a back flow preventer may be required in the cooling water circuit KM 250BAF Icemaker Icemaking Water Supply Inlet 1 2 FPT Two inch 5 cm air gap Bin Drain Outlet L EM 3 4 FPT Separate piping to approved drain Leave a two inch 5 cm vertical air gap between the end of each pipe and the drain KM 250BWF Condenser Water Inlet 1 2 FPT Icemaker Shut off Valve Icemaking Water Supply inlet 1 2 FPT Condenser Water Outlet 1 2 FPT Two inch 5 cm air gap Bin Drain Outlet 3 4 FPT Separate piping to approved drain Leave a two inch 5 cm vertical air gap between the end of each pipe and the drain 11 5 Final Check List 1 Is the icemaker level 2 Is the icemaker in a site where the ambient temperature is within 45 F 7 C to 100 F 38 C and the water temperature within 45 F 7 C to 90 F 32
8. ice Use the plastic scoop provided Accessory The storage bin is for ice use only Do not store anything else in the bin Keep the scoop clean Clean it by using a neutral cleaner and rinse thoroughly Clean the bin liner by using a neutral cleaner Rinse thoroughly after cleaning 3 Air Filter air cooled model only The plastic mesh air filter located behind the louver 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 it is clogged use warm water and a neutral cleaner to wash the filter 4 Condenser air cooled model only 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 20 HOSHIZAKI HOSHIZAKI AMERICA INC 618 HIGHWAY 74 SOUTH PEACHTREE CITY GA 30269 U S A PHONE 770 487 2331 91A1AQ10D
9. ide a firm and level foundation for the equipment Allow 6 15 cm clearance at rear and top for ease of maintenance and or service should they be required 3 Electrical Connection This icemaker must have a separate power supply or receptacle of proper capacity See the nameplate Usually an electrical permit and services of a licensed electrician are required 4 Water Supply and Drain Connections See Fig 1 CAUTION To prevent damage to the equipment do not operate the icemaker when the water supply is OFF or if the pressure is below 10 PSIG 0 7 bar Do not run the icemaker until the proper water pressure is reached Water supply inlet is 1 2 FPT Note On water cooled model two water supply inlets are provided One is the ice making water inlet and the other 1 2 FPT is the cooling water inlet A water supply line shut off valve and drain valve should be installed A minimum of 3 8 OD copper tubing is recommended for the water supply lines Water supply pressure should be a minimum of 10 PSIG 0 7 bar and a maximum of 113 PSIG 7 5 bar Ifthe pressure exceeds 113 PSIG 7 5 bar the use of a pressure reducing valve is required Drain outlet for icemaker dump is 3 4 FPT The bin drain is 3 4 FPT The icemaker drain and the condenser drain piping connections must be made separately from the bin drain Note On water cooled model a 1 2 FPT is provided for the condenser drain outlet T
10. in specifications and design without prior notice b KM 250BWF water cooled HOSHIZAKI ICE MAKER MODEL NUMBER KM 250BWF SERIAL NUMBER AC SUPPLY VOLTAGE 115 120 60 1 AMPERES 9 5 AMPS DESIGN PRESSURE HI 427 PSI LO 210 PSI REFRIGERANT 404A 10 6 oz MOTOR COMPRESSOR THERMALLY PROTECTED HOSHIZAKI AMERICA INC Peachtree City LISTED ICE MAKER 946Z C See the nameplate for electrical and refrigeration specifications This nameplate is located on the upper right hand side of the rear panel Since this nameplate is located on the rear panel of the icemaker itcannotbe read when the back of the icemaker is against a wall or against another piece of kitchen equipment Therefore the necessary electrical and refrigeration information is also on the rating label which can be easily seen by removing only the front panel of the icemaker We reserve the right to make changes in specifications and design without prior notice 2 Dimensions Connections Units millimeters a KM 250BAF inches 3 4 PT Female REAR VIEW Water Inlet SIDE VIEW z x im BER i Units millimeters inches b KM 250BWF divW3d 14 8 6 131100 1 H3SN3UNOCJ un 79S 53 No Creer VE ___ 0 QUE Sm cuoi n MEDI avy 1 M31VM 3GIS MalA ll Installation and
11. move the control switch to the OFF position unless the icemaker will be at sub freezing temperatures 1 On water cooled model only first remove the water from the water cooled condenser 1 Remove the front panel 2 Move the control switch on the control box to the OFF position 3 Wait 3 minutes 4 Move the control switch to the ICE position 5 Allow 5 minutes for the icemaker to fill with water and the water pump to start operating 6 Close the water cooled condenser water supply line shut off valve See Fig 1 7 Open the drain valve for the water cooled condenser water supply line 8 Allow the line to drain by gravity 9 Attach compressed air or carbon dioxide supply to the condenser water line drain valve 10 Blow the water cooled condenser out using compressed air or carbon dioxide until water stops coming out 2 Remove the water from the potable water supply line 1 Remove the front panel Except water cooled model 2 Move the control switch on the control box to the OFF position 3 Wait 3 minutes 4 Close the potable water supply line shut off valve and open the potable water supply line drain valve See Fig 1 14 5 Allow the line to drain by gravity 6 Attach compressed air or carbon dioxide supply to the potable water line drain valve 7 Move the control switch to the ICE position 8 Blow the potable water line out using compressed air or carbon dioxide 3 Drain the potable water tank 1 Di
12. moving the two thumbscrews for each at the top of the bin and disconnect one end of the overflow drain hose See Fig 3 18 Mix a new batch of the cleaning solution 19 Wash the bin liner the thermostat bracket the water tank bracket and the water tank using a nylon scouring pad brushes and the cleaning solution 20 Rinse the parts in the previous step thoroughly with water 17 c Sanitizing Solution Dilute 1 fl oz 30 ml or 2 tbs of 5 2596 sodium hypochlorite solution chlorine bleach with 2 gallons 7 6 1 of warm water Using a chlorine test strip or other method confirm that you have a concentration of about 200 ppm IMPORTANT For safety and maximum effectiveness use the solution immediately after dilution d Sanitizing Procedure The sanitizing process will sanitize the icemaker 1 Wash the bin liner thermostat bracket water tank overflow pipe O ring and overflow cap using the sanitizing solution If possible soak the water tank overflow pipe and overflow cap in the sanitizing solution in a clean container for 10 minutes 2 Discard the sanitizing solution and rinse the parts in the previous step thoroughly with water 3 Replace the parts in their correct positions Note Be sure to correctly replace the overflow pipe O ring to prevent leaks 4 Pull out the cap at the front of the plastic body 1 or more 5 Mix a new batch of the sanitizing solution and pour it into the water tank 6 R
13. ndMalntenari6B Ua aet Erb Ea dE 16 1 Cleaning and Sanitizing JOstruclloltS 16 Cleaning Solution ood Race ae RR 16 b Cleaning PROCESO 2 5242564252425682342251444452242 2082 E EE E PILLS ad Dep REN 16 fet Sanitizing Rc Rd MA rr 18 Sanitizing PEOCSCOUEO srt pao rtr 18 RC 20 I Specifications 1 Nameplate Rating a KM 250BAF air cooled HOSHIZAKI ICE MAKER MODEL NUMBER KM 250BAF SERIAL NUMBER AC SUPPLY VOLTAGE 115 120 60 1 AMPERES 10 5 AMPS DESIGN PRESSURE 467 PSI LO 210 PSI REFRIGERANT 404A 12 oz MOTOR COMPRESSOR THERMALLY PROTECTED HOSHIZAKI AMERICA INC Peachtree City GA LISTED ICE MAKER UL 9462 See the nameplate for electrical and refrigeration specifications This nameplate is located on the upper right hand side of the rear panel Since this nameplate is located on the rear panel of the icemaker itcannot be read when the back ofthe icemaker is against a wall or against another piece of kitchen equipment Therefore the necessary electrical and refrigeration information is also on the rating label which can be easily seen by removing only the front panel of the icemaker We reserve the right to make changes
14. sconnect the power supply 2 Move the control switch to the OFF position 3 Open the door 4 Remove the plug at the bottom of the water tank to drain the water tank 5 Replace the plug in its correct position 6 Remove all ice from the storage bin and clean the storage bin 7 Shut the door 8 Replace the front panel in its correct position 9 Close the drain valve lll Cleaning and Maintenance IMPORTANT Ensure all components fasteners and thumbscrews are securely in place after any maintenance or cleaning is done to the equipment 1 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 liquid proof gloves to prevent the cleaning and sanitizing solutions from coming into contact with skin a Cleaning Solution Dilute 7 fl oz 207 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc with 1 3 gallons 4 9 1 of warm water IMPORTANT For safety and maximum effectiveness use the solution immediately after dilution b Cleaning Procedure The cleaning process will remove lime deposits from the water system 1 Remove the front panel 2 Remove all ice from the evaporator and the storage bin Note To remo
15. ve cubes on the evaporator move the control switch to the OFF position and move it back to the ICE position after 3 minutes The defrost cycle starts and the cubes will be removed from the evaporator 3 Move the control switch to the OFF position Open the door 16 4 Remove the plug at the bottom of the water tank to drain the tank See Fig 3 After draining replace the plug in its correct Ba aN position 5 Pull out the cap at the front of the plastic Pull out i 6 Pour the cleaning solution into the water body 1 or more See Fig 4 tank Thumbscrew Overflow Drain Hose 7 Replace the cap in its correct position 8 Move the control switch to the WASH Fig 3 position Close the door 9 After 30 minutes move the control switch to the OFF position Ca 10 Remove the plug to drain the water tank After draining replace the plug in its 222 correct position 11 Move the control switch to the ICE position to fill the water tank with water 12 After 3 minutes move the control switch to the OFF position 13 Move the control switch to the WASH position 14 After 5 minutes move the control switch to the OFF position 15 Remove the plug to drain the water tank After draining replace the plug in its correct position 16 Repeat 11 through 15 three more times to rinse thoroughly 17 Remove the thermostat bracket and the water tank from the bin by re
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