Hoshizaki KM-630MAH User manual

™
INSTRUCTION MANUAL
ISSUED: FEB. 21, 2001
KM-630MAH
KM-630MWH
KM-630MRH
MODULAR CRESCENT CUBER
Reliability is a
beautiful thingTM
REVISED: DEC. 11, 2003

2
HOSHIZAKI AMERICA, INC.
618Highway74South
PeachtreeCity,GA 30269
Attn: HOSHIZAKITechnicalSupportDepartment
Phone: [phone]TechnicalService
[phone]
Fax: [phone]
NOTE:NOTE:
NOTE:NOTE:
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem
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

3
• Pleasereviewthismanual. Itshouldbereadcarefullybeforetheicemaker isinstalledand
operated.Onlyqualifiedservicetechniciansshouldinstall,serviceandmaintainthe
icemaker. Thismanualshouldbemadeavailabletothetechnicianpriortoinstallation,
maintenanceorservice.
• Keepthismanualwiththeicemakerforlaterreference.
CONTENTSCONTENTS
CONTENTSCONTENTS
CONTENTS PAGE
I. SPECIFICATIONS ..................................................................................................4
1. NAMEPLATE RATING .........................................................................................4
[a] KM-630MAH (Air-cooled).................................................................................4
[b]KM-630MWH(Water-cooled)...........................................................................5
[c] KM-630MRH (Remote Air-cooled) ...................................................................6
2. DIMENSIONS/CONNECTIONS ...........................................................................7
[a] KM-630MAH ....................................................................................................7
[b]KM-630MWH ...................................................................................................8
[c] KM-630MRH ....................................................................................................9
II. INSTALLATION AND OPERATING INSTRUCTIONS.........................................10
1. CHECKS BEFORE INSTALLATION..................................................................10
2. HOW TO REMOVE PANELS .............................................................................10
3. LOCATION .........................................................................................................11
4. SET UP ..............................................................................................................11
5. ELECTRICAL CONNECTION............................................................................12
6. INSTALLATION OF REMOTE CONDENSER UNIT ..........................................13
[a] CHECKS BEFORE INSTALLATION.............................................................13
[b] LOCATION ....................................................................................................13
[c] SET UP..........................................................................................................14
[d] ELECTRICAL CONNECTION.......................................................................15
[e] STACKING CONDENSER UNIT ..................................................................16
8. WATER SUPPLY AND DRAIN CONNECTIONS ..............................................17
9. FINAL CHECK LIST ...........................................................................................19
10. START UP .........................................................................................................20
11. PREPARING THE ICEMAKER FOR LONG STORAGE....................................21
III. CLEANING AND MAINTENANCE INSTRUCTIONS..........................................23
1. CLEANING INSTRUCTIONS .............................................................................23
[a] CLEANING PROCEDURE ............................................................................23
[b] SANITIZING PROCEDURE...........................................................................25
2. MAINTENANCE..................................................................................................26

4
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.
I. SPECIFICATIONSI. SPECIFICATIONS
I. SPECIFICATIONSI. SPECIFICATIONS
I. SPECIFICATIONS
1. NAMEPLATE RATING1. NAMEPLATE RATING
1. NAMEPLATE RATING1. NAMEPLATE RATING
1. NAMEPLATE RATING
[a] KM-630MAH (Air-cooled)[a] KM-630MAH (Air-cooled)
[a] KM-630MAH (Air-cooled)[a] KM-630MAH (Air-cooled)
[a] KM-630MAH (Air-cooled)

5
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.
[b] KM-630MWH (Water-cooled)[b] KM-630MWH (Water-cooled)
[b] KM-630MWH (Water-cooled)[b] KM-630MWH (Water-cooled)
[b] KM-630MWH (Water-cooled)

6
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.
[c] KM-630MRH (Remote Air-cooled)[c] KM-630MRH (Remote Air-cooled)
[c] KM-630MRH (Remote Air-cooled)[c] KM-630MRH (Remote Air-cooled)
[c] KM-630MRH (Remote Air-cooled)

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Unit: mm. (inches)
2. DIMENSIONS/CONNECTIONS2. DIMENSIONS/CONNECTIONS
2. DIMENSIONS/CONNECTIONS2. DIMENSIONS/CONNECTIONS
2. DIMENSIONS/CONNECTIONS
[a] KM-630MAH[a] KM-630MAH
[a] KM-630MAH[a] KM-630MAH
[a] KM-630MAH

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[b] KM-630MWH[b] KM-630MWH
[b] KM-630MWH[b] KM-630MWH
[b] KM-630MWH Unit: mm. (inches)

9
[c] KM-630MRH[c] KM-630MRH
[c] KM-630MRH[c] KM-630MRH
[c] KM-630MRH Unit: mm. (inches)

10 Fig. 1Fig. 1
Fig. 1Fig. 1
Fig. 1
II. INSTALLATION AND OPERATING INSTRUCTIONSII. INSTALLATION AND OPERATING INSTRUCTIONS
II. INSTALLATION AND OPERATING INSTRUCTIONSII. INSTALLATION AND OPERATING INSTRUCTIONS
II. INSTALLATION AND OPERATING INSTRUCTIONS
1. CHECKS BEFORE INSTALLATION1. CHECKS BEFORE INSTALLATION
1. CHECKS BEFORE INSTALLATION1. CHECKS BEFORE INSTALLATION
1. CHECKS BEFORE INSTALLATION
IMPORTANTIMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
1. Removeshippingcarton,tape(s)andpacking. Ifpackingmaterialisleftinthe
icemaker,itwillnotworkproperly.
2. Ensure all components, fasteners and thumbscrews are securely in place.
1) Remove the panels to prevent damage when installing the icemaker. (See “2. 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
bladeturnsfreely.
5) Check that the Compressor is snug on all mounting pads.
6)SeetheNameplateontheRearPanel,andcheckthatyourvoltagesuppliedcorrespondswith
the voltage specified on the Nameplate.
7) This icemaker needs a storage bin. The recommended storage bin is HOSHIZAKI ICE
STORAGE BIN, Model B-300 series.
8)Onremoteair-cooledmodels,aremotecondenserunitisneeded. Therecommendedremote
condenser unit is HOSHIZAKI CONDENSER UNIT, Model URC-6F.
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)FrontPanel...............Removethescrew.
Lift up and pull toward you.
b)TopPanel.................Liftupslightlyitsfront,pushaway,
and then lift off.
c)SidePanel(R)..........Removethescrew.
Pull slightly toward you, and lift off.
d)InsulationPanel........Liftupslightly,andpulltowardyou,
from the left side (opposite side of
the L-bracket).
e)BaseCover...............Liftupslightly,andpulltowardyou.

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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(7°C) to +100°F(38°C); Normal operating
water temperature should be within +45°F (7°C) to +90°F (32°C). Operation of
theicemaker,forextendedperiods,outsideofthesenormaltemperatureranges
may affect production capacity.
For best operating results:
•Icemakershouldnotbelocatednexttoovens,grillsorotherhighheatproducingequipment.
•Locationshouldprovideafirmandlevelfoundationfortheequipment.
•Allow 6" (152 mm) clearance at rear, sides and top for proper air circulation and ease of
maintenanceand/orserviceshouldtheyberequired.
4. SET UP4. SET UP
4. SET UP4. SET UP
4. SET UP
1)UnpacktheStorageBin,andattachthefouradjustablelegsprovided(binaccessory)tothe
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 position.
Fig. 2Fig. 2
Fig. 2Fig. 2
Fig. 2

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5. ELECTRICAL CONNECTION5. ELECTRICAL CONNECTION
5. ELECTRICAL CONNECTION5. ELECTRICAL CONNECTION
5. ELECTRICAL CONNECTION
WARNINGWARNING
WARNINGWARNING
WARNING
1. Electrical connection must be made in accordance with the instructions on a
“WARNING” tag, provided with the pig tail leads in the Junction Box.
2. 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.
• Thewhiteleadmustbeconnectedtotheneutralconductorofthepowersource. Miswiringresults
in severe damage to the icemaker. See Fig. 3.
•This icemaker must have a separate power supply or receptacle of proper capacity. See the
Nameplate.
•Theopeningforthepowersupplyconnectionis7/8"(22mm)DIAtofita1/2"(12.7mm)trade
sizeconduit.
•Usuallyanelectricalpermitand servicesofa licensedelectricianarerequired.
Fig. 3Fig. 3
Fig. 3Fig. 3
Fig. 3

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Note:If therecommendedguidelinesoftheinstallationareexceeded,the icemakerperfor-
mancemaybereduced.
Fig. 4Fig. 4
Fig. 4Fig. 4
Fig. 4
6. INSTALLATION OF REMOTE CONDENSER UNIT6. INSTALLATION OF REMOTE CONDENSER UNIT
6. INSTALLATION OF REMOTE CONDENSER UNIT6. INSTALLATION OF REMOTE CONDENSER UNIT
6. INSTALLATION OF REMOTE CONDENSER UNIT
[a] CHECKS BEFORE INSTALLATION[a] CHECKS BEFORE INSTALLATION
[a] CHECKS BEFORE INSTALLATION[a] CHECKS BEFORE INSTALLATION
[a] CHECKS BEFORE INSTALLATION
1) Unpack and remove shipping carton, tape(s) and packing.
2) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the fan
blade moves freely.
[b] LOCATION[b] LOCATION
[b] LOCATION[b] LOCATION
[b] LOCATION
The condenser unit must be positioned in a permanent site under the following guidelines.
•A firm and flat site.
•Adryandwellventilatedareawith24" (610 mm) clearance on both front and rear foreaseof
maintenanceandserviceshouldtheyberequired.
•Normalcondenserambienttemperature:-20°F(-29°C)to+122°F(50°C). Temperaturesnot
withinthisoperatingrangemayaffecttheproductioncapacityoftheicemaker.
•The maximum line length for the standard refrigerant charge is 66 feet (20.1 m). Should an
installation require a longer line length, please call 1-800-233-1940 for recommendations
concerning the correct additional refrigerant charge to be added.

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[c] SET UP[c] SET UP
[c] SET UP[c] SET UP
[c] SET UP
1) Secure the Legs to the condenser unit with eight M8 x 16 mm Hexagon Bolts and M8 Nuts
as shown in the illustration. See Fig. 5.
Note: Locate the Legs symmetrically.
2) The Legs have eight mounting holes. Secure the Legs with eight bolts (not included).
3) Install enough length of two copper tubings provided with Aeroquip couplings between the
icemaker and the condenser unit. The two copper tubings should be insulated separately.
See Fig. 7.
•Prechargedtubingkits,availableasoptionalequipmentfromHOSHIZAKIAMERICA,are
recommended.
4) Line sets fabricated in the field should be evacuated through the charging ports on the
Aeroquip couplings and charged with R-404A refrigerant vapor to a pressure of 15 - 30
PSIG.
Note: Factory fabricated tubing kits are precharged and do not need to be evacuated.
5)Removetheplasticcapsprotectingthecouplings. Attachthetworefrigerantlinestothemale
couplings on the icemaker and the remote condenser unit. Each refrigerant line must be
connected as follows:
Icemaker discharge refrigerant line - 3/8" (9.52 mm) OD tubing to “DIS” of condenser unit
Icemaker liquid refrigerant line - 1/4" (6.35 mm) OD tubing to “LIQ” of condenser unit
Note: Care should be taken that the unit, line set and Condenser contain the same type
refrigerant prior to making connections. Mixing of refrigerants will result in improper
operationand possibledamage totherefrigerationsystem.Maketheconnectionsat
the remote condenser first and then at the icemaker.
Fig. 5Fig. 5
Fig. 5Fig. 5
Fig. 5 Fig. 6Fig. 6
Fig. 6Fig. 6
Fig. 6

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Fig. 7Fig. 7
Fig. 7Fig. 7
Fig. 7
[d] ELECTRICAL CONNECTION[d] ELECTRICAL CONNECTION
[d] ELECTRICAL CONNECTION[d] ELECTRICAL CONNECTION
[d] ELECTRICAL CONNECTION
WARNINGWARNING
WARNINGWARNING
WARNING
This remote condenser unit requires a ground that meets the national and local
electricalcoderequirements. Topreventpossible electricalshockto individuals
orextensivedamagetoequipment,installapropergroundwiretothiscondenser
unit.
•ThiscondenserunitmustbeconnectedtotheFanMotorJunctionBoxontheicemaker.
•Theopeningforthepowersupplyconnectionis7/8"(22.2mm)DIAtofita1/2"(12.7mm) trade
size conduit.
•Usuallyanelectricalpermitand servicesofa licensedelectricianarerequired.
1) Remove the Panel.
2) Remove the Junction Box Cover.
3) ConnecttheFanMotorleadsintheJunctionBoxoftheremotecondenserunittotheFanMotor
leadsinthe Junction BoxoftheHOSHIZAKIremote air-cooled icemaker.
4) Install a ground wire to the remote condenser unit.
5) Replace the Junction Box Cover and the Panel in their correct position.

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Fig. 8Fig. 8
Fig. 8Fig. 8
Fig. 8
[e] STACKING CONDENSER UNIT[e] STACKING CONDENSER UNIT
[e] STACKING CONDENSER UNIT[e] STACKING CONDENSER UNIT
[e] STACKING CONDENSER UNIT
1) Secure the lower condenser unit to the Legs with eight bolts (not included).
2) Attach the upper condenser unit on the top of the lower.
3) Secure the upper condenser unit with the four screws provided.
4)Installrefrigerantlines,andmakeelectricalconnectionforeachFanMotorasshowninItems
[c] and [d].

17
7. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 97. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 9
7. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 97. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 9
7. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 9
WARNINGWARNING
WARNINGWARNING
WARNING
Topreventdamagetothepumpassembly,donotoperatetheicemakerwhenthe
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.
•Watersupplyinletis1/2"(12.7mm) female pipe thread (FPT).
Note:Onwater-cooledmodel,twowatersupplyinletsareprovided. Oneisfortheicemaker,
and the other is for the water-cooled condenser.
•A water supply line shut-off valve and drain valve should be installed. A minimum of
3/8"(9.52mm)ODcoppertubingisrecommendedforthewatersupplylines.
•Watersupplypressureshouldbeaminimumof10PSIG(0.7Bar)andamaximumof113PSIG
(7.9Bar). Ifthepressureexceeds113 PSIG(7.9Bar),theuseofapressurereducingvalveis
required.
•Drain outlet for icemaker dump is 3/4" (19.05 mm) FPT. The drain for condensation is a
3/8"(9.52mm)IDpipe. Theicemakerdrainandthecondenserdrainpipingconnectionsmust
bemade separatelyfromthebindrain.
Note:Onwater-cooledmodel,a3/8"(9.5mm)FPTisprovidedforthecondenserdrainoutlet.
•Thedrainsmusthave1/4"fallperfoot(20.9mmfallpermeter)onhorizontalrunstoget agood
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.
•Insomeareas,abackflow preventermaybe requiredinthe coolingwatercircuit.

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KM-630MAHKM-630MAH
KM-630MAHKM-630MAH
KM-630MAH
KM-630MRHKM-630MRH
KM-630MRHKM-630MRH
KM-630MRH
KM-630MWHKM-630MWH
KM-630MWHKM-630MWH
KM-630MWH
Fig. 9Fig. 9
Fig. 9Fig. 9
Fig. 9

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8. FINAL CHECK LIST8. FINAL CHECK LIST
8. FINAL CHECK LIST8. FINAL CHECK LIST
8. 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) all year around?
3) Is there at least 6" (152 mm) clearance around the icemaker for maintenance or service?
4)Haveallshippingcarton,tapes and packing been removed fromtheicemaker?Isthecube
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)AretheWaterSupplyLineShut-offValveandDrainValveinstalled? Hasthewatersupply
pressurebeencheckedtoensurea minimum of 10 PSIG (0.7 Bar) and a maximum of 113
PSIG (7.9 Bar)?
Note: The icemaker may stop running when the water supply is OFF, or if the pressure is
below10PSIG (0.7Bar). Whentheproper waterpressureisreached, theicemaker
automatically starts running again.
9)Havethecompressorhold-downboltsandrefrigerantlinesbeencheckedagainstvibration
and possible failure?
10) 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?
11) Has the end user been given the name and telephone number of an authorized service
agent?
12) Has the warranty tag been filled out and forwarded to the factory for warranty registration?

20
Fig. 10Fig. 10
Fig. 10Fig. 10
Fig. 10
9. START UP9. START UP
9. START UP9. START UP
9. START UP
WARNINGWARNING
WARNINGWARNING
WARNING
1. All parts are factory-adjusted. Improper adjustments may result in failure.
2.Iftheunitisturnedoff,waitforatleast3minutesbeforerestartingtheicemaker
to prevent damage to the Compressor.
3.Donotoperatetheunitinthe“WASH”positionwithoutwaterintheWaterTank.
This will cause damage to the Water Pump seal.
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) Replace the Front Panel in its correct position.
5) Turn on the power supply, and allow the Water Tank to fill with water and the icemaker to
operate for a total of 10 minutes.
6) Turn off the power supply, and remove the Front Panel and the Base Cover.
7) Remove one end of the Pump Tubing, and drain the Water Tank. See Fig. 10.
8) Replace the Pump Tubing and the Base Cover in their correct position.
9) Clean the Storage Bin.
10) Replace the Front Panel in its correct position.
11) Turn on the power supply, and start the automatic icemaking process.