Hoshizaki KM-1600SRH User manual

™
INSTRUCTION MANUAL
ISSUED: APRIL 23, 2001
KM-1600SWH
KM-1600SRH
KM-1600SWH3
KM-1600SRH3
STACKABLE CRESCENT CUBER
Reliability is a
beautiful thing
TM
REVISED: DEC. 11, 2003

2
HOSHIZAKIAMERICA,INC.
618Highway74South
PeachtreeCity,GA 30269
Attn: HOSHIZAKITechnicalSupportDepartment
Phone: [phone]TechnicalService
[phone]
Fax: [phone]
NOTE:NOTE:
NOTE:NOTE:
NOTE: Toexpedite assistance, all correspondence/communication MUST include the
followinginformation:
• 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.
IMPORTANTIMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
Onlyqualifiedservicetechniciansshouldattempttoinstall,serviceormaintainthis
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.

3
• Pleasereviewthismanual. Itshouldbereadcarefullybeforetheicemaker isinstalled
andoperated.Onlyqualifiedservicetechniciansshouldinstall,serviceandmaintainthe
icemaker. Thismanualshouldbemadeavailabletothetechnicianpriortoinstallation,
maintenanceorservice.
• Keepthismanualwiththeicemakerforlaterreference.
CONTENTSCONTENTS
CONTENTSCONTENTS
CONTENTS PAGE
I. SPECIFICATIONS...................................................................................................4
1. NAMEPLATE RATING..........................................................................................4
[a]KM-1600SWH(Water-cooled) .........................................................................4
[b] KM-1600SRH (Remote Air-cooled)..................................................................5
[c]KM-1600SWH3(Water-cooled)........................................................................6
[d] KM-1600SRH3 (Remote Air-cooled)................................................................7
2.DIMENSIONS/CONNECTIONS ............................................................................8
[a]KM-1600SWH,KM-1600SWH3 .......................................................................8
[b] KM-1600SRH, KM-1600SRH3 ........................................................................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. INSTALLATION OF THE SECOND UNIT ...........................................................14
6.ELECTRICALCONNECTION .............................................................................15
7. INSTALLATION OF REMOTE CONDENSER UNIT............................................16
[a] CHECKS BEFORE INSTALLATION..............................................................16
[b]LOCATION.....................................................................................................16
[c]SETUP ..........................................................................................................17
[d]ELECTRICALCONNECTION ........................................................................18
[e]STACKINGCONDENSER UNIT....................................................................19
8. WATER SUPPLY AND DRAIN CONNECTIONS ................................................20
9. FINAL CHECK LIST............................................................................................22
10. START UP..........................................................................................................23
11. PREPARING THE ICEMAKER FOR LONG STORAGE ....................................24
III. CLEANING AND MAINTENANCE INSTRUCTIONS ...........................................26
1. CLEANING INSTRUCTIONS ..............................................................................26
[a] CLEANING PROCEDURE.............................................................................27
[b] SANITIZING PROCEDURE...........................................................................28
2.MAINTENANCE ..................................................................................................29

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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-1600SWH (Water-cooled)[a] KM-1600SWH (Water-cooled)
[a] KM-1600SWH (Water-cooled)[a] KM-1600SWH (Water-cooled)
[a] KM-1600SWH (Water-cooled)
See the Nameplate for electrical and refrigeration specifi-
cations. ThisNameplateislocatedontheupperrighthand
side of the rear panel.
Since this Nameplate is located on the rear panel of the
icemaker,itcannotbereadwhenthebackoftheicemaker
isagainstawalloragainstanotherpieceofkitchenequip-
ment. Therefore,thenecessaryelectricalandrefrigeration
informationis also ontherating label,whichcan 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.

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[b] KM-1600SRH (Remote Air-cooled)[b] KM-1600SRH (Remote Air-cooled)
[b] KM-1600SRH (Remote Air-cooled)[b] KM-1600SRH (Remote Air-cooled)
[b] KM-1600SRH (Remote Air-cooled)
See the Nameplate for electrical and refrigeration specifi-
cations. ThisNameplateislocatedontheupperrighthand
side of the rear panel.
Since this Nameplate is located on the rear panel of the
icemaker,itcannotbereadwhenthebackoftheicemaker
isagainstawalloragainstanotherpieceofkitchenequip-
ment. Therefore,thenecessaryelectricalandrefrigeration
informationis also ontherating label,whichcan 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.

6
[c] KM-1600SWH3 (Water-cooled)[c] KM-1600SWH3 (Water-cooled)
[c] KM-1600SWH3 (Water-cooled)[c] KM-1600SWH3 (Water-cooled)
[c] KM-1600SWH3 (Water-cooled)
See the Nameplate for electrical and refrigeration specifi-
cations. ThisNameplateislocatedontheupperrighthand
side of the rear panel.
Since this Nameplate is located on the rear panel of the
icemaker,itcannotbereadwhenthebackoftheicemaker
isagainstawalloragainstanotherpieceofkitchenequip-
ment. Therefore,thenecessaryelectricalandrefrigeration
informationis also ontherating label,whichcan 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.

7
[d] KM-1600SRH3 (Remote Air-cooled)[d] KM-1600SRH3 (Remote Air-cooled)
[d] KM-1600SRH3 (Remote Air-cooled)[d] KM-1600SRH3 (Remote Air-cooled)
[d] KM-1600SRH3 (Remote Air-cooled)
See the Nameplate for electrical and refrigeration specifi-
cations. ThisNameplateislocatedontheupperrighthand
side of the rear panel.
Since this Nameplate is located on the rear panel of the
icemaker,itcannotbereadwhenthebackoftheicemaker
isagainstawalloragainstanotherpieceofkitchenequip-
ment. Therefore,thenecessaryelectricalandrefrigeration
informationis also ontherating label,whichcan 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.

8
2. DIMENSIONS/CONNECTIONS2. DIMENSIONS/CONNECTIONS
2. DIMENSIONS/CONNECTIONS2. DIMENSIONS/CONNECTIONS
2. DIMENSIONS/CONNECTIONS
[a] KM-1600SWH, KM-1600SWH3[a] KM-1600SWH, KM-1600SWH3
[a] KM-1600SWH, KM-1600SWH3[a] KM-1600SWH, KM-1600SWH3
[a] KM-1600SWH, KM-1600SWH3
Note: When used with a storage bin not recommended by Hoshizaki, the icemaker needs
the space at the bottom opening as in the illustration.
units:inches(mm.)

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[b] KM-1600SRH, KM-1600SRH3[b] KM-1600SRH, KM-1600SRH3
[b] KM-1600SRH, KM-1600SRH3[b] KM-1600SRH, KM-1600SRH3
[b] KM-1600SRH, KM-1600SRH3
Note: When used with a storage bin not recommended by Hoshizaki, the icemaker needs
the space at the bottom opening as in the illustration.
units:inches(mm.)

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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) and packing. If packing material is leftin
theicemaker,itwillnotworkproperly.
2.Ensureallcomponents,fastenersandthumbscrewsaresecurelyinplace.
1)Removethepanels to prevent damage when installing theicemaker. (See“2.HOWTO
REMOVE PANELS.”)
2) Remove the package containing the accessories from the compressor compartment.
3)Removetheprotectiveplasticfilm fromthepanels. If theicemakerisexposedtothesun
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.
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-800 series.
8) On remote air-cooled models, a remote condenser unit is needed. The recommended
remote condenser unit is HOSHIZAKI CONDENSER UNIT, Model URC-20F.
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 two screws.
Lift up and pull toward you.
b)TopPanel ............ Remove the two screws, and
then lift off.
c) Side Panel (R)...... Remove the screw.
Pullslightlytowardyou,and
take off.
d) Insulation Panel... Remove theThumbscrew.
Lift up slightly, and pull toward
you. Fig. 1Fig. 1
Fig. 1Fig. 1
Fig. 1

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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 to +100°F; Normal operating water
temperatureshouldbewithin+45°Fto+90°F. Operationof theicemaker,for
extended periods, outside of these normal temperature ranges may affect
productioncapacity.
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.
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) Stack the icemaker on top of the Storage Bin.
4)SecuretheicemakertotheStorageBinbyusingthetwoUniversalBracesandtwoofthe
bolts provided. See Fig. 2.
Fig. 2Fig. 2
Fig. 2Fig. 2
Fig. 2

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CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
Beforeoperatingthe icemaker, the BinControlThermostat must be installed
correctly.
5) Install the Bin Control Thermostat as follows. See Figures 3a and 3b.
(a)Removethetiesecuring the Thermostat and Bracket. Remove the Thermostat and
the Bracket from the Shipping Hook by lifting them up and shifting them to the right.
(b)LowertheThermostatBracketthroughtheholelocatedatthebottomoftheicemaker.
(c) Insert the Plug into the Receptacle on the Bracket until it locks in place
(d) Secure the Thermostat Bracket in place with the thumbscrew.
Fig. 3aFig. 3a
Fig. 3aFig. 3a
Fig. 3a

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(e) Remove the Bin Control Bracket Extension from the accessory bag.
(f) Remove the Baffle from the Bin.
(g) Remove the two screws holding the Thermostat Bulb Attachment to the end of the
Thermostat Bracket.
(h)Usethese twoscrewstoattachtheBinControlBracketExtensiontotheThermostat
Bracket.
(i) Use the two 4 x 10 stainless steel screws in the accessory bag to attach the
Thermostat Bulb Attachment to the end of the Bin Control Bracket Extension.
(j) Reinstall the Baffle in the Bin.
6) 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.
7) Place the panels in position.
Fig. 3bFig. 3b
Fig. 3bFig. 3b
Fig. 3b

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5. INSTALLATION OF THE SECOND UNIT - See Fig. 4, 55. INSTALLATION OF THE SECOND UNIT - See Fig. 4, 5
5. INSTALLATION OF THE SECOND UNIT - See Fig. 4, 55. INSTALLATION OF THE SECOND UNIT - See Fig. 4, 5
5. INSTALLATION OF THE SECOND UNIT - See Fig. 4, 5
1) See “4. SET UP” for the lower unit installation.
2)RemovetheTopPanelandtheTopInsulationofthe
lowerunit. TheTopPanelandtheTopInsulationof
the lower unit are not required when installing the
secondicemaker.
3) Unpack the second icemaker (upper unit), and
remove all shipping cartons, tape(s) and packing.
4) Remove the panels of the second icemaker.
5) Stack the upper unit on top of the lower unit.
6) Secure the upper unit to the lower unit by using the
two Universal Braces and the four bolts provided.
7) Remove the Thermostat Bulb Attachment of the upper unit from the Thermostat
Bracket.
8)RoutetheBinControlThermostatCapillaryTubingoftheupperunitthroughthebottom
hole of the upper unit and the Thermostat Bracket of the lower unit.
Securethe ThermostatBulb ofthe upperunit tothe ThermostatBulb Attachmentof the
lower unit with the Thermostat Bulb Attachment and the screws of the upper unit.
9)Insertthe plug oftheupperunit into the receptacleofthe upper unit ontheBracket until
itlocksinplace.
10) Place the panels in position.
Fig. 5Fig. 5
Fig. 5Fig. 5
Fig. 5
Fig. 4Fig. 4
Fig. 4Fig. 4
Fig. 4

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6. ELECTRICAL CONNECTION6. ELECTRICAL CONNECTION
6. ELECTRICAL CONNECTION6. ELECTRICAL CONNECTION
6. ELECTRICAL CONNECTION
WARNINGWARNING
WARNINGWARNING
WARNING
1.Electricalconnectionmustbemadeinaccordancewiththeinstructionson
a “WARNING” tag, provided with the pig tail leads in the Junction Box.
2.Thisicemakerrequiresagroundthatmeetsthenationalandlocalelectrical
code requirements. To prevent possible electrical shock to individuals or
extensive damage to the equipment, install a proper ground wire to the
icemaker.
• Onthree phasemodels, theVoltageTapSwitchintheunitshouldbe positionedto match
incoming voltage at start-up. See Fig. 6.
• On single phase models only, the white lead must be connected to the neutral conductor
of the power source. Miswiring results in severe damage to the icemaker. See Fig. 7.
• This icemaker must have a separate power supply or receptacle of proper capacity. See
the Nameplate.
• The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.
•WhenexcessivevoltageissuppliedtotheControllerBoard,theicemakerstopsrunningin
3 seconds. See “10. START UP.”
• Usually an electrical permit and services of a licensed electrician are required.
Fig. 6Fig. 6
Fig. 6Fig. 6
Fig. 6 Fig. 7Fig. 7
Fig. 7Fig. 7
Fig. 7

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Note: If the recommended guidelines of the installation are exceeded, the icemaker
performance may be reduced.
7. INSTALLATION OF REMOTE CONDENSER UNIT7. INSTALLATION OF REMOTE CONDENSER UNIT
7. INSTALLATION OF REMOTE CONDENSER UNIT7. INSTALLATION OF REMOTE CONDENSER UNIT
7. 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 turns 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.
• A dry and well ventilated area with 24" clearance on both front and rear for ease of
maintenance and service should they be required.
• Normal condenser ambient temperature: -20°F to +122°F. Temperatures not within this
operating range may affect the production capacity of the icemaker.
• The maximum line length for the standard refrigerant charge is 66 feet. Should an
installationrequirealongerlinelength,pleasecall1-800-233-1940forrecommendations
concerning the correct additional refrigerant charge to be added.
Fig. 8Fig. 8
Fig. 8Fig. 8
Fig. 8

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[c] SET UP[c] SET UP
[c] SET UP[c] SET UP
[c] SET UP
1)SecuretheLegstothecondenserunitwitheightM8x16mmHexagonBoltsandM8Nuts
as shown in the illustration. See Fig. 8.
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. 9.
• A connector kit “OS-QUICK” is available for field-fabricated lines from HOSHIZAKI
AMERICA.
•R-404Aprechargedtubingkits,availableasoptionalequipmentalsofromHOSHIZAKI
AMERICA, 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)Removethe plastic caps protecting thecouplings. Attachthetworefrigerant lines to the
male couplings on the icemaker and the remote condenser unit. Each refrigerant line
must be connected as follows:
Icemaker discharge refrigerant line - 5/8" OD tubing to “DIS” of condenser unit
Icemaker liquid refrigerant line - 3/8" 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 operation and possible damage to the refrigeration system. Make the
connections at the remote condenser first and then at the icemaker.
Fig. 9Fig. 9
Fig. 9Fig. 9
Fig. 9 Fig. 10Fig. 10
Fig. 10Fig. 10
Fig. 10

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[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 electrical code requirements. To prevent possible electrical shock to
individuals or extensive damage to equipment, install a proper ground wire
to this condenser unit.
• This condenser unit must be connected to the Fan Motor Junction Box on the icemaker.
• 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.
1) Remove the Panel.
2) Remove the Junction Box Cover.
3)ConnecttheFanMotorleadsintheJunctionBoxoftheremotecondenserunittotheFan
Motor leads in the Junction Box of the HOSHIZAKI remote air-cooled icemaker.
4) Install a ground wire from the icemaker to the remote condenser unit.
5) Place the Junction Box Cover and the Panel in position.
Fig. 11Fig. 11
Fig. 11Fig. 11
Fig. 11

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[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) Install refrigerant lines, and make electrical connection for each Fan Motor as shown in
Items [c] and [d].
Fig. 12Fig. 12
Fig. 12Fig. 12
Fig. 12

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8. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 138. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 13
8. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 138. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 13
8. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 13
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
Topreventdamagetothepumpassembly,donotoperatetheicemakerwhen
the water supply is OFF, or if the pressure is below 10 PSIG. Do not run the
icemaker until the proper water pressure is reached.
• Water supply inlet is 1/2" female pipe thread (FPT).
Note: On water-cooled model, two water supply inlets are provided. One is for the
icemaker, 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
1/2" OD copper tubing is recommended for the water supply lines.
• Water supply pressure should be a minimum of 10 PSIG and a maximum of 113 PSIG.
If the pressure exceeds 113 PSIG, the use of a pressure reducing valve is required.
• Drain outlet for icemaker dump is 3/4" FPT. The drain for condensation is a 3/8" ID pipe.
Theicemakerdrainandthecondenserdrainpipingconnectionsmustbemadeseparately
from the bin drain.
Note: On water-cooled model, a 1/2" FPT is provided for the condenser drain outlet.
• The drains must have 1/4" fall per foot 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
2vertical inchesshould bebetween theendofthedrainpipefromtheicemaker orthe 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.
• In some areas, a back flow preventer may be required in the cooling water circuit.