Hoshizaki KM-255BAH User's Manual
Contents
1. Switch Housing R 18 Disconnect the suction hose Next remove the water tank by pressing down on the snaps on Bracket L and Bracket R and pulling the tank towards you See Fig 5 19 Remove the float switch from the water tank by pulling out on the right side wall of the water tank slightly and sliding the float switch upward Be careful to avoid breakage when handling the parts See Fig 6 20 Remove the detector from the water tank It is snapped in place Slide it up and then out See Fig 6 21 Pull Cube Guide A and Cube Guide B qty varies depending on model upward to remove them from the water tank They are snapped in place See Fig 6 22 Remove the suction hose from the water tank 23 Remove the drain pan from Bracket R by pulling it towards you It is snapped in place Remove the drain tube and the frame pipe from the drain pan See Fig 7 24 Dilute 5 fl 148 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Drain Pan Inc with 1 gallon 3 8 1 of warm water 25 Wash the bin control switch housing water tank float Drain Tube switch detector Cube Guide A Cube Guide B suction hose drain pan drain tube and frame pipe by using a Frame Pipe nylon scouring pad brushes and the cleaning solution In addition to the removed parts also wash the bin liner Bracket L and Bracket R with the solution 26 Discard the cleaning solu2. Remove all ice from the evaporator and the storage bin Note To remove cubes on the evaporator move the control switch on the control box 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 4 Move the control switch to the OFF position Open the door 5 Disconnect the suction hose to drain the water See Fig 3 6 Reconnect the suction hose back in its correct position after all of the water has drained 7 Pour the cleaning solution into the water tank 8 Move the control switch to the WASH position 9 Close the door 10 After 30 minutes move the control switch to the OFF position 11 Disconnect the suction hose to drain the water Reconnect the suction hose back in its correct position after all of the water has drained Move the control switch to the ICE position to fill the water tank with water After 3 minutes move the control switch to the WASH position Disconnect the suction hose to drain the water Reconnect the suction hose back in its correct position after all of the water has drained 12 13 14 After 5 minutes move the control switch to the OFF position 15 16 Repeat steps 12 through 15 three more times to rinse thoroughly 17 Remove the bin control switch housing at the back of the water tank It is snapped in place Pinch it and then pull down See Fig 4 Ein Control 1
3. brush or vacuum cleaner More frequent cleaning may be required depending on the location of the icemaker Preparing the Icemaker for Long Storage IMPORTANT When shutting off the icemaker for an extended time drain out all water from the water lines and remove the ice from the storage bin The storage bin should be cleaned and dried Drain the icemaker and water cooled condenser if applicable using air or carbon dioxide to prevent damage to the water supply lines 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 it is sufficient to only move the control switch to the OFF position unless the icemaker will be at sub freezing temperatures To drain all water from the icemaker follow the steps below 1 Remove the front panel top panel and insulation panel 2 Move the control switch on the control box to the OFF position 3 Wait 3 minutes then move the control switch to the ICE position 4 Allow the icemaker to complete the one minute fill cycle LED 4 is on then move the switch back to the OFF position 5 Close the potable water supply line shut off valve and open the potable water supply line drain valve 6 Allow the line to drain by gravity 7 Move the control switch to the ICE position 8 Blow the potable water supply line out using compressed air or carbon dioxide This will clear water from the freeze wa
4. to drain the water Reconnect the suction hose back in its correct position after all of the water has drained 12 13 14 15 Repeat steps 5 through 11 one time Repeat steps 12 through 15 in the Cleaning Procedure three times to rinse thoroughly Flush the storage bin with water was se a Move the control switch to the ICE position and start the automatic icemaking process 16 Close the door 17 Replace the front panel in its correct position B Maintenance 1 Exterior Panels To prevent corrosion wipe the exterior 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 e Wash your hands before removing ice Use the plastic scoop provided Accessory e 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 e Clean the bin liner by using a neutral cleaner Rinse thoroughly after cleaning 16 3 Air Filter air cooled model only The plastic mesh air filter removes dirt and 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
5. 3 Move the control switch on the control box to the ICE position 4 Let the icemaker run for 10 minutes then move the control switch to the OFF position 5 Open the door 6 Disconnect the suction hose to drain the water See Fig 3 7 Reconnect the suction hose back in its correct position after all of the water has drained 8 Clean the storage bin 9 Move the control switch to the ICE position This starts the automatic icemaking process 11 Close the door 12 Place the front panel in its correct position 13 Cleaning and Maintenance Instructions IMPORTANT Ensure all components fasteners and thumbscrews are securely in place after any maintenance or cleaning is done to the equipment A Cleaning 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 4 For safety and maximum effectiveness use cleaning and sanitizing solutions immediately after dilution 1 Cleaning Procedure 1 Dilute 5 fl oz 148 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc with 1 gallon 3 8 1 of warm water 2 Remove the front panel 3
6. Hoshizaki America Inc Self Contained Crescent Cuber Models KM 255BAH KM 255BWH INSTRUCTION MANUAL Superior Degree of Reliability www hoshizaki com K YCLESAVER Issued 10 4 2006 Only qualified service technicians should attempt to install service 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 write or send an e mail message 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 1 800 843 1056 770 487 3360 E mail techsupport hoshizaki com Web Site www hoshizaki com NOTE To expedite assistance all correspondence communication MUST include the following information Model Number e Serial Number Complete and detailed explanation of the problem e Please review this ma
7. d on the rear panel of the icemaker it cannot be 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 Dimensions Connections 1 255 Unit mm inches 162 30 1 2 FEMALE NPT FEMALE WATER INLET 374 bot 2 KM 255BWH Intentionally Left Blank ll Installation And Operating Instructions A Checks Before Installation IMPORTANT 1 Remove shipping carton tape s and packing If packing material is left in the icemaker it will not work properly 2 Ensure all components fasteners and thumbscrews are securely in place 1 Remove the top and front panels to prevent damage when installing the icemaker See B How to Remove Panels 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 S
8. ee the nameplate on the rear panel and check that your voltage supplied corresponds with the voltage specified on the nameplate B How to Remove Panels See Fig 1 e Front Panel Remove the screw Lift up and towards you e Top Panel Open the door Remove the screws Lift up at the front slightly push rearward and lift off Top Panel Front Panel f witty Screw C Location WARNING This icemaker is not intended for outdoor use Normal operating ambient temperature should be within 45 F to 100 F 7 C to 38 C Normal operating water temperature should be within 45 F to 90 F 7 C to 32 C Operation of the icemaker for extended periods outside of these normal temperature ranges may affect production capacity For best operating results should not be located next to ovens grills or other high heat producing equipment e Level the icemaker from side to side and front to rear by adjusting the legs Location should provide a firm and level foundation for the equipment e Allow 6 15 cm clearance at the rear and top for ease of maintenance and or service should they be required D Electrical Connection CAUTION The GREEN ground wire in the factory installed power cord is connected to a screw on the bracket where the cord enters the machine If it becomes necessary to remove or replace the power cord be sure to connect the power cord s ground wire to this sc
9. ers 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 pressure been checked to ensure a minimum of 10 PSIG 0 7 bar and a maximum 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 operation been verified 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 service agent 13 Has the warranty card been filled out and forwarded to the factory for warranty registration 12 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
10. llowing Cleaning Procedure 16 16 C Preparing Ihe lcemaker for Long Storage nenne a 17 I Specifications A Nameplate Rating 1 KM 255BAH air cooled HOSHIZAKI ICE MAKER EL NUMBER KM 255BAH NUMBER PPLY VOLTAGE 115 60 1 9 AMPS PRESSURE HI 467PSI LO 240PSI 404A 1 LB 0 8 OZ MOTOR COMPRESSOR THERMALLY PROTECTED NOT INTENDED FOR OUTDOOR USE Hoshizaki America Inc Peachtree City GA www hoshizaki com LISTED Gl PERFORMANCE See the nameplate for electrical and refrigeration specifications This nameplate is located on the upper left hand side of the rear panel Since this nameplate is located on the rear panel of the icemaker it cannot be 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 KM 255BWH water cooled Intentionally Left Blank See the nameplate for electrical and refrigeration specifications This nameplate is located on the upper left hand side of the rear panel Since this nameplate is locate
11. nual It should be read carefully before the icemaker is installed and operated Only qualified service technicians should install service and maintain the icemaker 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 1 DEEIIEL NONE 4 Pes Nameplale Rating ne 4 2 0010 4 2 KM 255BWH Malsrc00l80 ee 5 B Dimensions Connedions ans 6 ee 6 2 KM 255B W 7 Il Installation And Operating Instructions tet 8 A Checks Before Installation 8 B Howto Remove Panels era 8 ANON 9 9 E Water Supply and Drain aaa 10 CheckliS cc 12 1 Ill Cleaning and Maintenance Instructions 14 see 14 1 Cleaning Proced re 14 2 Sanitizing Procedure Fo
12. r system air gap of a minimum of 2 vertical inches 5 cm should be between the end of the drain pipes from the icemaker and water cooled condenser if applicable 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 some areas e Water Cooled Model Only A back flow preventer may be required in the cooling water circuit in some areas KM 255BAH gt Shut off Valve Water Supply Inlet 1 2 FPT Drain Outlet 3 4 FPT Two inch 5 cm air gap Separate piping to approved drain Leave a two inch 5 cm vertical air gap between the end of each pipe and the drain KM 255BWH _5 7 Shut off Valve Water Supply Inlet 1 2 Condenser Water tlet 1 2 FPT Drain Valve Shut off Valve Drain Outlet 3 4 FPT Drain Valve Fig 2 Final Checklist 1 Is the icemaker level 2 Is the icemaker in a site where the ambient temperature is within 45 F to 100 F 7 C to 38 C and the water temperature within 45 F to 90 F 7 C to 32 C all year around 3 Is there at least 6 15 cm clearance at the rear and top of the icemaker for ease of maintenance or service 4 Have shipping carton and all tape s and packing been removed from the icemaker Is the cube guide in its correct position 5 Are all components fasten
13. rew upon reattachment e This icemaker must a separate power supply or receptacle of proper capacity See the nameplate e Usually an electrical permit and services of a licensed electrician are required E Water Supply and Drain Connections See Fig 2 CAUTION To prevent damage to equipment do not operate this 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 e Water supply inlet is 1 2 female pipe thread FPT Note On water cooled model two water supply inlets are provided One is the water supply inlet for icemaking and the other 1 2 FPT is for the water cooled condenser e 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 e Water supply pressure should be a minimum of 10 PSIG 0 7 bar and a maximum of 113 PSIG 7 5 bar If the pressure exceeds 113 PSIG 7 5 bar the use of a pressure reducing valve is required e Drain outlet for icemaker dump is 3 4 Note Water cooled model also has 1 2 FPT condenser drain outlet dump and condenser drain lines must be run separately e Drain lines must have 1 4 fall per foot 2 cm per 1 on horizontal runs to get good flow A vented tee connection is also required for proper flow e Drain lines should not be piped directly to the sewe
14. ter valve 9 Allow the machine to cycle from the one minute fill cycle to the initial harvest cycle LEDs 1 4 and 2 are on Blow the potable water supply line out using compressed air or carbon dioxide This will clear water from the harvest water valve 10 Move the control switch to the OFF position 11 Disconnect the suction hose to drain the water See Fig 1 12 Disconnect the upper hose from the harvest water valve Move the control switch to the WASH position and quickly blow out the hose line using compressed air or carbon dioxide This will clear water from the wash valve 17 13 14 15 16 17 18 Move the control switch to the OFF position Reconnect the suction hose and harvest water valve hose Close the potable water supply line drain valve Remove all ice from the storage bin and clean the bin Turn off the power supply at the breaker box If the icemaker is water cooled proceed to the next section to drain the condenser If the icemaker is air cooled place the panels back in their correct positions The procedure is complete To drain all water from the water cooled condenser follow the steps below 1 2 3 4 Close the water cooled condenser water supply line shut off valve Open the drain valve for the water cooled condenser water supply line Allow the line to drain by gravity SSS Attach compressed air or carbon dioxide supply to the condenser water supply line drain val
15. tion and rinse the parts thoroughly with water 15 2 Sanitizing Procedure Following Cleaning Procedure 1 Dilute approximately 0 5 fl oz 15 ml or 1 tbs of a 5 25 sodium hypochlorite solution chlorine bleach with 1 gallon 3 8 I of warm water Using a chlorine test strip or other method confirm that you have a concentration of about 200 ppm 2 Soak the removed parts from step 25 above in a clean container containing the sanitizing solution After allowing the parts to soak for 10 minutes wash them with the solution Also wash the bin liner Bracket L and Bracket R with the solution 3 Discard the sanitizing solution and rinse the parts thoroughly with water 4 Replace the removed parts in their correct positions in the reverse order of which they were removed Put the float switch wiring tubing in the slot to the right of the water tank latch before putting the water tank in place 5 Dilute approximately 0 5 fl oz 15 ml or 1 tbs of a 5 25 sodium hypochlorite solution chlorine bleach with 1 gallon 3 8 I of warm water Using a chlorine test strip or other method confirm that you have a concentration of about 200 ppm 6 Pour the sanitizing solution into the water tank and allow the sanitizer to sit for 10 minutes 7 Move the control switch to the WASH position 8 Close the door 9 After 15 minutes move the control switch to the OFF position 10 Open the door 11 Disconnect the suction hose
16. ve 5 Blow the water supply line out using compressed air or carbon dioxide until water stops coming out 6 Disconnect the water inlet and outlet at the condenser 7 Remove the screws securing the compressor base and the condenser Carefully slide the refrigeration assembly forward 8 Attach compressed air or carbon dioxide supply to the condenser and blow out the condenser 9 Close the condenser water supply line drain valve 10 Place all removed parts back in their correct positions and then place the panels back in their correct positions 18 HOSHIZAKI AMERICA INC 618 Hwy 74 S Peachtree City GA 30269 USA 770 487 2331 770 487 3360 www hoshizaki com 91A1AT10A
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