Hoshizaki KM-900MAH50 User manual

™
INSTRUCTION MANUAL
ISSUED: NOV. 6, 2001
KM-900MAH50
MODULAR CRESCENT CUBER
Reliability is a
beautiful thing
TM
REVISED: NOV. 6, 2003

2
HOSHIZAKI AMERICA, INC.
618Highway74South
PeachtreeCity,GA 30269
Attn: HOSHIZAKITechnicalSupportDepartment
Phone: [phone]TechnicalService
[phone]
Fax: [phone]
NOTE: Toexpediteassistance,allcorrespondence/communicationMUSTincludethefollowing
information:
• ModelNumber
• SerialNumber
• Completeanddetailedexplanationoftheproblem
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.
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.
IMPORTANTIMPORTANT
IMPORTANTIMPORTANT
IMPORTANT

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• Pleasereviewthismanual. Itshouldbereadcarefullybeforetheicemaker isinstalledand
operated.Onlyqualifiedservicetechniciansshouldinstall,serviceandmaintainthe
icemaker. Thismanualshouldbemadeavailabletothetechnicianpriortoinstallation,
maintenanceorservice.
• Keep this manual with the icemaker for future reference.
CONTENTSCONTENTS
CONTENTSCONTENTS
CONTENTS PAGE
I. SPECIFICATIONS ..................................................................................................4
1. NAMEPLATE RATING .........................................................................................4
[a] KM-900MAH50 (Air-cooled) ............................................................................4
2. DIMENSIONS/CONNECTIONS............................................................................5
[a] KM-900MAH50................................................................................................5
II. INSTALLATION AND OPERATING INSTRUCTIONS............................................6
1. CHECKS BEFORE INSTALLATION .....................................................................6
2. HOW TO REMOVE PANELS ...............................................................................7
3. LOCATION ...........................................................................................................7
4. SET UP.................................................................................................................8
5. ELECTRICAL CONNECTION...............................................................................8
6. WATER SUPPLY AND DRAIN CONNECTIONS ..................................................9
7. FINAL CHECK LIST............................................................................................11
8. START UP ..........................................................................................................12
9. PREPARING THE ICEMAKER FOR LONG STORAGE.....................................14
III. CLEANING AND MAINTENANCE INSTRUCTIONS ...........................................15
1. CLEANING INSTRUCTIONS ..............................................................................15
[a] CLEANING PROCEDURE .............................................................................15
[b] SANITIZING PROCEDURE ...........................................................................17
2.MAINTENANCE ..................................................................................................18

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I. SPECIFICATIONSI. SPECIFICATIONS
I. SPECIFICATIONSI. SPECIFICATIONS
I. SPECIFICATIONS
1. NAMEPLATE RATING1. NAMEPLATE RATING
1. NAMEPLATE RATING1. NAMEPLATE RATING
1. NAMEPLATE RATING
[a] KM-900MAH50 (Air-cooled)[a] KM-900MAH50 (Air-cooled)
[a] KM-900MAH50 (Air-cooled)[a] KM-900MAH50 (Air-cooled)
[a] KM-900MAH50 (Air-cooled)
SeetheNameplateforelectricalandrefrigerationspeci-
fications. This Nameplate is located on the upper right
hand side of 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.
HOSHIZAKI ICE MAKER
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
ELECTRIC CONSUMPTION
AMPERAGE
STARTINGAMPERAGE
REFRIGERANT R404A
WEIGHT
MAX OPERATING PRESSURE
NOT INTENDED FOR OUTDOOR USE
HOSHIZAKI AMERICA, INC.
Peachtree City, GA USA
KM-900MAH50
230V 50 Hz
2040W
10A
58A
1550 G
98 Kg
2.88 MPA

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2.DIMENSIONS/CONNECTIONS2.DIMENSIONS/CONNECTIONS
2.DIMENSIONS/CONNECTIONS2.DIMENSIONS/CONNECTIONS
2.DIMENSIONS/CONNECTIONS
[a] KM-900MAH50[a] KM-900MAH50
[a] KM-900MAH50[a] KM-900MAH50
[a] KM-900MAH50 Unit: mm. (inches)

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II.INSTALLATIONANDOPERATINGINSTRUCTIONSII.INSTALLATIONANDOPERATINGINSTRUCTIONS
II.INSTALLATIONANDOPERATINGINSTRUCTIONSII.INSTALLATIONANDOPERATINGINSTRUCTIONS
II.INSTALLATIONANDOPERATINGINSTRUCTIONS
1. CHECKS BEFORE INSTALLATION1. CHECKS BEFORE INSTALLATION
1. CHECKS BEFORE INSTALLATION1. CHECKS BEFORE INSTALLATION
1. CHECKS BEFORE INSTALLATION
IMPORTANTIMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
1.Remove shipping carton,tape(s) and packing. Ifpacking material isleft in
the icemaker, it will not work properly.
2.Ensure all components, fastenersandthumbscrewsaresecurelyinplace.
1) Remove the panels to prevent damage when installing the icemaker. See “2. HOW TO
REMOVEPANELS.”
2) Remove the package containing the accessories.
3)Removetheprotectiveplasticfilmfromthepanels. Iftheicemakerisexposedtothe 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)SeetheNameplateontheRearPanel,andcheckthatyourvoltagesuppliedcorresponds
with the voltage specified on the Nameplate.
7) This icemaker needs a storage bin. The recommended storage bin is HOSHIZAKI ICE
STORAGE BIN, Model B-500 series.

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Fig. 1Fig. 1
Fig. 1Fig. 1
Fig. 1
2. HOW TO REMOVE PANELS - See Fig. 12. HOW TO REMOVE PANELS - See Fig. 1
2. HOW TO REMOVE PANELS - See Fig. 12. HOW TO REMOVE PANELS - See Fig. 1
2. HOW TO REMOVE PANELS - See Fig. 1
a) Front Panel ......... Remove the screw.
Lift up and pull toward you.
b) Top Panel............ Lift up slightly its front, push away,
and then lift off.
c) Side Panel (R) ..... Remove the screw.
Pull slightly toward you, and lift off.
d) Insulation Panel... Lift up slightly, and pull toward you.
e) Base Cover ......... Lift up slightly, and pull toward you.
3. LOCATION3. LOCATION
3. LOCATION3. LOCATION
3. LOCATION
WARNINGWARNING
WARNINGWARNING
WARNING
This icemaker is not intended for outdoor use. Normal operating ambient
temperature should be within +45°F to +100°F; Normal operating water
temperature should be within +45°F to +90°F. Operation of the icemaker, for
extended periods, outside of these normal temperature ranges may affect
production capacity.
For best operating results:
• Icemaker should not be located next to ovens, grills or other high heat producing equipment.
• Location should provide a firm and level foundation for the equipment.
• Allow 6" clearance at rear, sides and top for proper air circulation and ease of maintenance
and/or service should they be required.

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4. SET UP4. SET UP
4. SET UP4. SET UP
4. SET UP
1) Unpack the Storage Bin, and attach the four
adjustable legs provided (bin accessory) to the
bottom of the Storage Bin.
2) Position the Storage Bin in the selected
permanent position.
3) Place the icemaker on the top of the Storage
Bin.
4) Secure the icemaker to the Storage Bin, by
using the two mounting brackets and the four
bolts provided. See Fig. 2.
5) Level the icemaker/Storage Bin in both the
left-to-right and front-to-rear directions. Adjust
the Ice Bin Legs to make the icemaker level.
6) Replace the panels in their correct positions.
5. ELECTRICAL CONNECTION5. ELECTRICAL CONNECTION
5. ELECTRICAL CONNECTION5. ELECTRICAL CONNECTION
5. ELECTRICAL CONNECTION
WARNINGWARNING
WARNINGWARNING
WARNING
This icemaker requires a ground that meets the national and local electrical
code requirements. To prevent possible electrical shock to individuals or
extensive damage to the equipment, install a proper ground wire to the
icemaker.
•Thisicemakermust have aseparatepowersupply or receptacleof propercapacity. Seethe
Nameplate.
•The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.
•Usually an electrical permit and services of a licensed electrician are required.
Fig. 2Fig. 2
Fig. 2Fig. 2
Fig. 2

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6. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 36. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 3
6. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 36. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 3
6. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 3
WARNINGWARNING
WARNINGWARNING
WARNING
Topreventdamagetothepumpassembly,donotoperatetheicemakerwhenthe
watersupplyisOFF,orifthepressureisbelow10PSIG. Donotruntheicemaker
until the proper water pressure is reached.
• Water supply inlet is 1/2" female pipe thread (FPT).
•Awatersupplyline shut-off valve and drainvalve shouldbe installed. Aminimum of3/8" OD
coppertubingisrecommendedforthewatersupplylines.
•Watersupplypressureshouldbeaminimumof 10 PSIG and a maximumof 113 PSIG. If the
pressureexceeds113PSIG,the useofapressurereducingvalveis required.
•Drainoutletforicemakerdumpis3/4"FPT. Thedrainforcondensationisa3/8"IDpipe. The
icemakerdrainandthecondenserdrainpipingconnectionsmustbemadeseparatelyfromthe
bin drain.
•Thedrainsmusthave1/4"fall perfootonhorizontalrunstogetagood flow.
•Thedrainsshouldnotbepipeddirectlytothesewersystem.Anairgapofaminimumof2vertical
inchesshouldbebetweentheendofthedrainpipefromtheicemakerortheicebinandthefloor
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.

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KM-900MAH50KM-900MAH50
KM-900MAH50KM-900MAH50
KM-900MAH50
Fig. 3Fig. 3
Fig. 3Fig. 3
Fig. 3