km-1900s_h(3) hoshizaki instrucciones manual

8/2/2019 KM-1900S_H(3) Hoshizaki Instrucciones Manual

1/38

Issued: 1-6-2009

Revised: 11-8-201

Hoshizaki

A Superior Degree

of Reliability

www.hoshizaki.com

Models

KM-1900SAH/3

KM-1900SWH/3

KM-1900SRH/3

Stackable Crescent Cuber

Hoshizaki America, Inc.

INSTRUCTION MANUAL


2/38

2

IMPORTANTOnly qualied service technicians should install, service, and maintain theicemaker. 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 hasinstructed them on its proper operation. Failure to install, operate, and maintain

the equipment in accordance with this manual may adversely aect saety,perormance, component lie, and warranty coverage.

Hoshizaki provides this manual primarily to assist qualied service technicians in theinstallation, maintenance, and service o the icemaker.

Should the reader have any questions or concerns which have not been satisactorilyaddressed, please call, write, or send an e-mail message to the Hoshizaki TechnicalSupport Department or assistance.

HOSHIZAKI AMERICA, INC.618 Highway 74 SouthPeachtree City, GA 30269

Attn: Hoshizaki Technical Support Department

Phone: 1-800-233-1940 Technical Support(770) 487-2331

Fax: 1-800-843-1056(770) 487-3360

E-mail: [email protected]

Web Site: www.hoshizaki.com

NOTE: To expedite assistance, all correspondence/communication MUST include theollowing inormation:

ModelNumber________________________

SerialNumber________________________

Completeanddetailedexplanationoftheproblem.


3/38

3

IMPORTANTThis manual should be read careully beore theicemaker is installed andoperated. Only qualied service technicians should install, service, andmaintain theicemaker. Read the warnings contained in this booklet careully asthey give important inormation regarding saety. Please retain this booklet orany urther reerence that may be necessary.

CONTENTSImportant Saety Inormation ................................................................................................. 4I. Specications ...................................................................................................................... 5

A. Nameplate Rating ......................................................................................................... 5

1. KM-1900SAH (air-cooled) ........................................................................................ 52. KM-1900SAH3 (air-cooled) ...................................................................................... 63. KM-1900SWH (water-cooled) .................................................................................. 74. KM-1900SWH3 (water-cooled) ................................................................................ 85. KM-1900SRH (remote air-cooled)............................................................................ 96. KM-1900SRH3 (remote air-cooled)........................................................................ 10

B. Dimensions/Connections .............................................................................................111. KM-1900SAH/3 .......................................................................................................11

2. KM-1900SWH/3 ..................................................................................................... 123. KM-1900SRH/3...................................................................................................... 13

II. Installation and Operating Instructions ............................................................................ 14A. Checks Beore Installation ........................................................................................... 14B. How to Remove Panels ............................................................................................... 14C. Location ...................................................................................................................... 15D. Setup ........................................................................................................................... 15E. Installation o Upper Unit ............................................................................................. 17

F. Electrical Connection ................................................................................................... 19G. Installation o Remote Condenser Unit ....................................................................... 211. Checks Beore Installation ...................................................................................... 212. Location ................................................................................................................. 213. Setup ..................................................................................................................... 224. Line Set ................................................................................................................. 225. Rerigerant Charge (Line Set Exceeding 66 Feet) ................................................. 256. Electrical Connection ............................................................................................. 257. Stacking Condenser Unit ........................................................................................ 26

H. Water Supply and Drain Connections ......................................................................... 271. Icemaker ................................................................................................................ 28

2. Water-Cooled Condenser....................................................................................... 29I. Final Checklist ............................................................................................................. 31J. Startup ......................................................................................................................... 32

III. Cleaning and Maintenance ............................................................................................. 33A. Cleaning and Sanitizing Instructions .......................................................................... 33

1. Cleaning Procedure ................................................................................................ 342. Sanitizing Procedure - Following Cleaning Procedure ........................................... 35

B. Maintenance Instructions ............................................................................................ 36C. Preparing the Icemaker or Long Storage ................................................................... 36


4/38

4

Important Saety InormationThroughout this manual, notices appear to bring your attention to situations which couldresult in death, serious injury, or damage to the unit.

WARNING Indicates a hazardous situation which could result in death or

serious injury.

CAUTION Indicates a situation which could result in damage to the unit.IMPORTANT Indicates important inormation about the use and care o the

unit.

WARNINGThis icemaker should be destined only to the use or which it has been

expressly conceived. Any other use should be considered improper andthereore dangerous. The manuacturer cannot be held responsible or injury ordamage resulting rom improper, incorrect, and unreasonable use.

To reduce the risk o death, electric shock, serious injury, or fre, ollow

basic precautions including the ollowing:Electricalconnectionmustbehard-wiredandmustmeetnational,state,and

local electrical code requirements. Failure to meet these code requirementscould result in death, electric shock, serious injury, re, or severe damage toequipment.

Thisunitrequiresanindependentpowersupply.Seethenameplateforpropervoltage and breaker/use size. Failure to use a proper breaker or use canresult in a tripped breaker, blown use, or damage to existing wiring. Thiscould lead to heat generation or re.

THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit could

result in death or serious injury.Thisunitshouldbedisassembledorrepairedonlybyqualiedservice

personnel to reduce the risk o electric shock, injury, or re.

Donotmakeanyalterationstotheunit.Alterationscouldresultinelectricshock, injury, re, or damage to the unit.


5/38

5

See the nameplate or electrical and rerigeration specications. This nameplate is located

on the rear panel.Since this nameplate is located on the rear panel o the icemaker, it cannot be read whenthe back o the icemaker is against a wall or against another piece o kitchen equipment.Thereore, the necessary electrical and rerigeration inormation is also on the rating label,which can be easily seen by removing only the ront panel o the icemaker.

We reserve the right to make changes in specications and design without prior notice.

I. Specifcations

A. Nameplate Rating

1. KM-1900SAH (air-cooled)

HOSHIZAKI ICE MAKER

MODEL NUMBER KM-1900SAH

SERIAL NUMBER

AC SUPPLY VOLTAGE 208-230/60/1 (3 WIRE WITH

NEUTRAL FOR 115V)COMPRESSOR 230V 11.3RLA 73LRA

PUMP 120V 1.2FLA 60W

FAN 115V 2FLA(TOTAL) 60W

OTHER 115V 0.3AMAXIMUM FUSE SIZE 30 AMPS

MAX. HACR BREAKER(USA ONLY) 30 AMPS

MAX. CIRC. BREAKER (CANADA ONLY) 30 AMPS

MINIMUM CIRCUIT AMPACITY 30 AMPS

DESIGN PRESSURE HI-467PSI LO-230PSI

REFRIGERANT 404A 4 LB. 10.1 OZ.

MOTOR-COMPRESSOR THERMALLY PROTECTED,

NOT INTENDED FOR OUTDOOR USE!

Hoshizaki America, Inc.Peachtree City, GA

www.hoshizaki.com

ICE MAKER WITHOUT

STORAGE MEANS

946ZCOMPONENT


6/38

6

See the nameplate or electrical and rerigeration specications. This nameplate is locatedon the rear panel.Since this nameplate is located on the rear panel o the icemaker, it cannot be read whenthe back o the icemaker is against a wall or against another piece o kitchen equipment.Thereore, the necessary electrical and rerigeration inormation is also on the rating label,

which can be easily seen by removing only the ront panel o the icemaker.


2. KM-1900SAH3 (air-cooled)

HOSHIZAKI ICE MAKER

MODEL NUMBER KM-1900SAH3

SERIAL NUMBER

AC SUPPLY VOLTAGE 208-230/60/3

COMPRESSOR 230V 8.4RLA 66LRA


FAN 115V 2FLA(TOTAL) 60W

OTHER 115V 0.3A

MAXIMUM FUSE SIZE 20 AMPS


MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPSMINIMUM CIRCUIT AMPACITY 20 AMPS






www.hoshizaki.com

ICE MAKER WITHOUT

STORAGE MEANS

946ZCOMPONENT


7/38

7

See the nameplate or electrical and rerigeration specications. This nameplate is locatedon the rear panel.

Since this nameplate is located on the rear panel o the icemaker, it cannot be read whenthe back o the icemaker is against a wall or against another piece o kitchen equipment.

Thereore, the necessary electrical and rerigeration inormation is also on the rating label,which can be easily seen by removing only the ront panel o the icemaker.


3. KM-1900SWH (water-cooled)

HOSHIZAKI ICE MAKERMODEL NUMBER KM-1900SWH

SERIAL NUMBER




FAN - - -

OTHER 115V 0.3A









www.hoshizaki.com

ICE MAKER WITHOUT

STORAGE MEANS

946ZCOMPONENT


8/38

8


Since this nameplate is located on the rear panel o the icemaker, it cannot be read whenthe back o the icemaker is against a wall or against another piece o kitchen equipment.

Thereore, the necessary electrical and rerigeration inormation is also on the rating label,which can be easily seen by removing only the ront panel o the icemaker.


4. KM-1900SWH3 (water-cooled)

HOSHIZAKI ICE MAKERMODEL NUMBER KM-1900SWH3

SERIAL NUMBER




FAN - - -

OTHER 115V 0.3A




MINIMUM CIRCUIT AMPACITY 20 AMPSDESIGN PRESSURE HI-427PSI LO-230PSI





www.hoshizaki.com

ICE MAKER WITHOUT

STORAGE MEANS

946ZCOMPONENT


9/38

9


Since this nameplate is located on the rear panel o the icemaker, it cannot be read whenthe back o the icemaker is against a wall or against another piece o kitchen equipment.Thereore, the necessary electrical and rerigeration inormation is also on the rating label,

which can be easily seen by removing only the ront panel o the icemaker.


5. KM-1900SRH (remote air-cooled)

HOSHIZAKI ICE MAKER

MODEL NUMBER KM-1900SRH

SERIAL NUMBER




FAN REMOTE 120V 3A MAX

OTHER 115V 0.3A





REFRIGERANT 404A




www.hoshizaki.com

ICE MAKER WITHOUT

STORAGE MEANS

946ZCOMPONENT


10/38

10

6. KM-1900SRH3 (remote air-cooled)

See the nameplate or electrical and rerigeration specications. This nameplate is located

on the rear panel.Since this nameplate is located on the rear panel o the icemaker, it cannot be read whenthe back o the icemaker is against a wall or against another piece o kitchen equipment.Thereore, the necessary electrical and rerigeration inormation is also on the rating label,which can be easily seen by removing only the ront panel o the icemaker.


HOSHIZAKI ICE MAKER

MODEL NUMBER KM-1900SRH3

SERIAL NUMBER




FAN REMOTE 120V 3A MAX

OTHER 115V 0.3A




MINIMUM CIRCUIT AMPACITY 20 AMPS


REFRIGERANT 404A




www.hoshizaki.com

ICE MAKER WITHOUT

STORAGE MEANS

946ZCOMPONENT


11/38

11

Note: When used with a storage bin not recommended by Hoshizaki, the icemakerneeds the space at the bottom opening as in the illustration.

Unit:

in.

[mm]

B. Dimensions/Connections

1. KM-1900SAH/3


12/38

12


2. KM-1900SWH/3

Unit:in.

[mm]


13/38

13

3. KM-1900SRH/3


Un

it:in.

[mm]


14/38

14

II. Installation and Operating Instructions

WARNING

1. This icemaker must be installed in accordance with applicable national, state,and local codes and regulations.

2. CHOKING HAZARD: Ensure all components, asteners, and thumbscrews

are securely in place ater installation. Make sure that none have allen intothe storage bin.

A. Checks Beore Installation

Visuallyinspecttheexterioroftheshippingcontainerandimmediatelyreportanydamage to the carrier. Upon opening the container, any concealed damage should alsobe immediately reported to the carrier.

Removetheshippingcarton,tape,andpackingmaterial.Ifanyareleftintheicemaker,it will not work properly.

Removethepanelstopreventdamagewheninstallingtheicemaker.See"II.B.Howto

RemovePanels."

Removethepackagecontainingtheaccessories.

Removetheprotectiveplasticlmfromthepanels.Iftheicemakerisexposedtothesunor to heat, remove the lm ater the icemaker cools.

Checkthattherefrigerantlinesdonotrubortouchlinesorothersurfaces,andthatthean blade (i applicable) turns reely.

Checkthatthecompressorissnugonallmountingpads.

Seethenameplateontherearpanel,andcheckthatyourvoltagesuppliedcorrespondswith the voltage specied on the nameplate.

Thisicemakercanbeinstalledonastoragebin48"wideorwider.Therecommendedstorage bin is Hoshizaki Ice Storage Bin, Model B-800 series. For urther options,contact your local Hoshizaki distributor.

Onremoteair-cooledmodel,aremotecondenserunitisneeded.HoshizakiRemoteCondenser Unit, Model URC-21F or URC-22F is recommended.

B. How to Remove PanelsSee Fig. 1

FrontPanel:Removethescrews.Liftupand

pull towards you.TopPanel:Removethescrews,thenliftoff.

SidePanel(R):Removethescrew.Slideorward slightly and lit o.

InsulationPanel:Removethethumbscrew.Liftup slightly and pull towards you.

TopInsulation:Liftoff.

Fig. 1

Top Panel

InsulationPanel

Side Panel (R)

TopInsulation

Front Panel


15/38

15

C. Location

CAUTION

1. This icemaker is not intended or outdoor use. Normal operating ambienttemperature should be within 45F to 100F (7C to 38C); Normal operatingwater temperature should be within 45F to 90F (7C to 32C). Operation

o the icemaker, or extended periods, outside o these normal temperatureranges may aect icemaker perormance.

2. This icemaker will not work at sub-reezing temperatures. To prevent damageto the water supply line, drain the icemaker i the air temperature is going to

gobelow32F(0C).See"III.C.PreparingtheIcemakerforLongStorage."

For best operating results:

Icemakershouldnotbelocatednexttoovens,grills,orotherhighheatproducingequipment.

Locationshouldprovidearm,levelfoundationfortheequipment.

Allow6"(15cm)clearanceatrear,sides,andtopforproperaircirculationandeaseofmaintenance and/or service should they be required.

D. Setup

CAUTIONBeore operating the icemaker, the bin control thermostat assembly must beinstalled correctly. Failure to properly install the assembly could result in ice

backup and unit damage.

1) Unpack the storage bin, then attach the 4 adjustable legs provided (bin accessory) to

the bottom o the storage bin.

2) Position the storage bin in the selected permanent location.

3) Place the icemaker on top o the storage bin.

4) Secure the icemaker to the storage binusing the 2 mounting brackets and thebolts provided. See Fig. 2.

5) Level the icemaker/storage bin in both thelet-to-right and ront-to-rear directions.Adjust the storage bin legs to make the

icemaker level.

Fig. 2

Icemaker

Bolts

MountingBrackets

Bin


16/38

16

6) Install the bin control thermostat as ollows:a. Remove the bale rom the storage bin.b. Remove the tie securing the bin control thermostat assembly. Remove the

2thumbscrewsandthe"Z"bracket.c. Remove the bin control thermostat assembly rom the shipping hook by liting it up

and shiting it to the right. Lower the thermostat extension bracket (stainless) withthe thermostat bulb attachment and thermostat bulb through the hole located at thebottom o the icemaker. Next, lower the thermostat bracket (plastic) through the hole.See Fig. 3.

Fig. 3

Bin Control Thermostat Assembly

Shipping Hook

Thermostat Bracket(plastic)

Tie

"Z"Bracket

Thermostat BulbAttachment (plastic)

and Thermostat Bulb

Thumbscrews

Thermostat Extension

Bracket (stainless)

Hole

Wall

d. Slide the let side o the upper part o the assembly towards you and make sure itis hooked on the wall. Make sure the let side and bottom o the assembly are fushagainst the wall and base panel.

e. Secure the assembly in place with the thumbscrews (unless you are installing anupperunit).(See"II.E.InstallationofUpperUnit.")

. Insert the plug into the receptacle on the assembly until it locks into place. See Fig. 3.

I a Hoshizaki B-800, B-900, or B-1150 storage bin is used:g.Putasidethe"Z"bracket;itisnotneededwiththestoragebinslistedabove.h. Remove the 2 screws rom the lower part o the thermostat bracket (plastic) and use

them to attach the thermostat extension bracket (stainless) to the thermostat bracket(plastic). See Fig. 4.

Thermostat Bracket

(plastic)

Thermostat ExtensionBracket (stainless) Fig. 4

Plug

Receptacle Thumbscrews

Hook

Bushing


17/38

17

I a Hoshizaki B-1300, B-1500, B-1650, or non-Hoshizaki storage bin is used:g. Remove the 2 screws securing the thermostat bulb attachment (plastic) to the

thermostatextensionbracket(stainless).Usethe2screwstoattachthe"Z"bracket(plastic) to the thermostat extension bracket (stainless).

h. Use the two 410 stainless steel screws in the accessory bag to attach thethermostatbulbattachment(withattachedthermostatbulb)tothe"Z"bracket.

i. Remove the 2 screws rom the lower part o the thermostat bracket (plastic) and usethem to attach the thermostat extension bracket (stainless) to the thermostat bracket

(plastic). See Fig. 5.

7) Replace the panels and bale in their correct positions (unless you are installing anupperunit).(See"E.InstallationofUpperUnit").Note: The bin control thermostat must be checked or proper operation at startup.

E. Installation o Upper Unit

1)See"II.D.Setup"forthelowerunitinstallation.

2) Remove the top panel and the top

insulation o the lower unit. These piecesmust be removed when installing an upper

unit.

3) Unpack the upper unit, and removethe shipping carton, tape, and packingmaterial.

4) Remove the panels o the upper unit.

5) Stack the upper unit on top o the lowerunit.

6) Secure the upper unit to the lower unitusing the 2 mounting brackets and the

bolts provided. See Fig. 6.

7) Remove the thermostat bulb attachment(plastic) o the upper unit rom thethermostat extension bracket (stainless).

Thermostat Bracket

(plastic)

Thermostat Bulb

Attachment (plastic)

"Z"Bracket(plastic)

Thermostat ExtensionBracket (stainless)

Fig. 5

Fig. 6

Icemaker(Upper Unit)

Mounting

Brackets

Bin

Icemaker

(Lower Unit)

Bolts


18/38

18

8) Careully remove the thermostat bulb rom the thermostat bulb attachment (plastic) othe upper unit.

9) Careully route the thermostat bulb and capillary tubing o the upper unit through thebottom hole o the upper unit. Remove the bushing rom the lower bin control thermostatassembly. Route the bulb and tubing through the hole in the assembly and down intothe storage bin. Reattach the bushing.

10) Secure the lower bin control thermostat assembly in place with the thumbscrews.

11) Careully insert the thermostat bulb back into the thermostat bulb attachment (plastic).

12) Secure the thermostat bulb attachment (plastic) o the upper unit to the thermostat bulb

attachment (plastic) o the lower unit with the screws o the upper unit. See Fig. 7.

13) Insert the plug o the upper unit into the receptacle o the upper unit's bin controlthermostat assembly until it locks into place.

14) Replace the panels and bale in their correct positions.

Thermostat

CapillaryTubing

Thermostat Extension Bracket(stainless)or"Z"Bracket(plastic)

Depending on BinThermostat Bulb Attachment

Removed rom Upper Unit

Thermostat Bulb

Attachment oLower Unit

Thermostat BulbFig. 7


19/38

19

F. Electrical Connection

WARNING

For All Models

1. Electrical connection must be hard-wired and must meet national, state, andlocal electrical code requirements. Failure to meet these code requirements

could result in death, electric shock, serious injury, re, or severe damage to

equipment.

2. This unit requires an independent power supply. See the nameplate or propervoltage and breaker/use size. Failure to use a proper breaker or use can

result in a tripped breaker, blown use, or damage to existing wiring. Thiscould lead to heat generation or re.

3. THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit couldresult in death or serious injury.

4. Electrical connection must be made in accordance with the instructions onthe"WARNING"tag,providedwiththepigtailleadsinthejunctionbox.SeeFig. 8a and 8b.

Additional Warnings or Remote Air-Cooled Model

5. THE REMOTE CONDENSER UNIT MUST BE GROUNDED. The powersupply and ground wire to the remote condenser unit are supplied rom theicemaker.See"II.G.6.ElectricalConnection."

6. To reduce the risk o electric shock, make all remote condenser unit

connections beore connecting the icemaker power supply.

7. On remote air-cooled models, the icemaker should have power or a minimumo 4 hours prior to startup to prevent compressor damage.

Usuallyanelectricalpermitandservicesofalicensedelectricianarerequired.

Themaximumallowablevoltagevariationis10percentofthenameplaterating.


20/38

20

Fig. 8b

KM-1900S_H3KM-1900S_H

Fig. 8a

Onsinglephasemodels,thewhiteleadmustbeconnectedtotheneutralconductorofthe power source. CAUTION! Miswiring may result in severe damage to the icemaker.See Fig. 8a.

Onthreephasemodels,thetransformersvoltagetapswitchmustbepositionedtomatchincoming voltage at startup. See Fig. 8b.

CAUTION! On three phase models, connect the highest incoming voltage supply

("stinger leg") to the red power supply wire (red common wire to the compressor).

Theopeningforthepowersupplyconnectionis7/8"DIAtota1/2"tradesizeconduit.


21/38

21

G. Installation o Remote Condenser Unit

WARNING

1. Installation o the remote condenser unit must be perormed by properlytrained and EPA-certied service personnel.

2. The remote condenser unit must be installed in accordance with applicable

national, state, and local codes and regulations.3. Failure to install the equipment within these guidelines may adversely aect

saety, perormance, component lie, and warranty coverage.

4. Power supply and ground wire to the remote condenser unit are suppliedfromtheicemaker.Fordetails,seesection"II.G.6.ElectricalConnection."

1. Checks Beore Installation

1) Remove the shipping carton, tape, and packing material.

2) Check that the rerigerant lines do not rub or touch lines or other suraces, and that thean blades move reely.

2. Location

CAUTIONThe remote condenser unit is intended or outdoor use. Normal operatingambient temperature should be within -20F to +122F (-29C to +50C).Operation o the remote condenser unit, or extended periods, outside o thisnormal temperature range may aect icemaker perormance.

The remote condenser unit must be positioned in a permanent site under the ollowingguidelines:

Armandatsite.Adryandwellventilatedareawith24"(61

cm) clearance in both ront and rear orease o maintenance and/or service shouldthey be required. See Fig. 9.

Themaximumlinelengthforthestandardrerigerant charge is 66 eet. Withadditional rerigerant, the maximum linelengthis100feet.Fordetails,see"II.G.5.Rerigerant Charge (Line Set Exceeding

66 Feet)."Themaximumverticaldistancebetween

the remote condenser unit and theicemaker is 33 eet above or 10 eetbelow the icemaker. These distances aremeasured tting to tting. See Fig. 10.

Air

Fig. 9

Min.24"(61cm)Clearance

Air

Fig. 10

Icemaker

RemoteCondenserUnit

Service Loop

Max. 33 Feet


22/38

22

4. Line Set

CAUTIONThe icemaker, line set, and remote condenser unit must contain the sametype o rerigerant. Mixing o rerigerants will result in improper operation andpossible damage to the rerigeration system.

Prechargedfactorylinesets,availableasoptionalequipmentfromHoshizakiAmerica,are

recommended.Fordetails,see"II.G.4.a)FactoryLineSetInstallation."Fieldfabricatedlinesetsareallowed.Fordetails,see"II.G.4.b)FieldFabricatedLineSetInstallation."

Themaximumlinelengthforthestandardrefrigerantchargeis66feet.Withadditional

refrigerant,themaximumlinelengthis100feet.Fordetails,see"II.G.5.RefrigerantCharge(LineSetExceeding66Feet)."

a) Factory Line Set Installation

1)Routethefactorylineset(5/8"ODdischargelineand3/8"ODliquidline)fromtheremote condenser unit to the icemaker. Leave a service loop behind the icemaker toallow the icemaker to be pulled out or service. See Fig. 12. Factory abricated line setsare precharged and do not need to be evacuated. I the line set is too long or too short,see"II.G.4.a)(1)FactoryLineSetModication."Note: The service loop is not considered an oil trap.

CAUTION

1. Ensure that there are no traps and no kinks in the line set.

2. Do not coil extra line set.

2) Connect the rerigerant lines to the appropriate male ttings on the remote condenserunit rst and then at the icemaker. Make a proper connection as ollows:

a. Remove the protective covers rom the male tting and emale coupling.

b. Apply Polyol Ester (POE) rerigerant oil or Parker Super O Lube to the entire maletting, including O-ring, diaphragm, and threads beore making the connection.See Fig. 13.

CAUTIONDo not use thread sealant on the ttings. Use POE rerigerant oil or Parker

Super O Lube only.

c. Make sure the male tting and emale coupling are properly aligned, then start theconnection by hand to ensure that it is not cross threaded.

3. Setup

1) Secure the legs to the remotecondenser unit with the 8 bolts andnuts provided. See Fig. 11.

2) The legs have 8 mounting holes. Securethe legs with 8 bolts (not included).

Fig. 11

Bolts with SplitLock Washer

and Flat Washer

Mounting Holes

Nuts


23/38

23

d. Tighten the connection with a wrench until it is tight. At this point, the nut hascovered most o the threads on the male tting.

e. Mark a reerence line on the emale coupling and the remote condenser unit oricemaker panel. Using a backup wrench on the back o the emale coupling, tightenthe six-sided nut o the emale coupling an additional 1/6 turn. See Fig. 14.

3)Ifyoulengthenedthelinesetasoutlinedin"II.G.4.a)(1)FactoryLineSetModication"

anditexceeds66feet,see"II.G.5RefrigerantCharge(LineSetExceeding66Feet)"forproper charging o the unit.

(1) Factory Line Set Modifcation

1) Recover the line set charge through the Schrader access ports on the Parker quickconnect couplings and store it in an approved container. Do not discharge thererigerant into the atmosphere. Remove the extra line set length or add extra tubing.When adding extra tubing, insulate the additional copper tubes separately. Braze the

connections.

2) Use an electronic leak detector or soap bubbles to check or leaks. Add a trace

o rerigerant to the lines through the Schrader access ports on the Parker quickconnect couplings (i using an electronic leak detector), and then raise the pressureusing nitrogen gas (140 PSIG). WARNING! DO NOT use R-404A as a mixture withpressurized air or leak testing.

3) Evacuate through the Schrader access ports on the Parker quick connect couplings andcharge with R-404A rerigerant vapor to a pressure o 15 to 30 PSIG. Go to step 2 in"II.G.4.a)FactoryLineSetInstallation."

b) Field Fabricated Line Set Installation

1)Routea5/8"ODcoppertubedischargelineanda3/8"ODcoppertubeliquidline

between the remote condenser unit and the icemaker. Leave a service loop behind theicemaker to allow the icemaker to be pulled out or service. See Fig. 12.Note: The service loop is not considered an oil trap.

CAUTION

1. Ensure that there are no traps and no kinks in the line set.

2. Do not coil extra line set. Fabricate the line set to the proper length.

2) Insulate the two copper tubes separately.

3) Install Parker quick connect couplings on each end. OS-QUICK, a universal quickconnect coupling kit available as optional equipment rom Hoshizaki America, isrecommended. CAUTION! Beore brazing, remove the Schrader valve core rom the

access port. When brazing, protect the coupling by using a wet cloth to preventthe coupling rom overheating. Do not use silver alloy or copper alloy containingarsenic.

4) Allow the coupling to cool, then replace the Schrader valve core.

5) Use an electronic leak detector or soap bubbles to check or leaks. Add a trace

o rerigerant to the lines through the Schrader access ports on the Parker quickconnect couplings (i using an electronic leak detector), and then raise the pressureusing nitrogen gas (140 PSIG). WARNING! DO NOT use R-404A as a mixture withpressurized air or leak testing.


24/38

24

6) Evacuate through the Schrader access ports on the Parker quick connect couplings andcharge with R-404A rerigerant vapor to a pressure o 15 to 30 PSIG.

7) Connect the rerigerant lines to the appropriate male ttings on the remote condenserunit rst and then at the icemaker. Make a proper connection as ollows:

a. Remove the protective covers rom the male tting and emale coupling.b. Apply Polyol Ester (POE) rerigerant oil or Parker Super O Lube to the entire male

tting, including O-ring, diaphragm, and threads, beore making the connection.See Fig. 13.

CAUTIONDo not use thread sealant on the ttings. Use POE rerigerant oil or ParkerSuper O Lube only.

c. Make sure the male tting and emale coupling are properly aligned, then start theconnection by hand to ensure that it is not cross threaded.

d. Tighten the connection with a wrench until it is tight. At this point, the nut hascovered most o the threads on the male tting.

e. Mark a reerence line on the emale coupling and the remote condenser unit oricemaker panel. Using a backup wrench on the back o the emale coupling, tighten

the six-sided nut o the emale coupling an additional 1/6 turn. See Fig. 14.

8)Ifthelinesetexceeds66feet,see"II.G.5RefrigerantCharge(LineSetExceeding66 Feet)"forproperchargingoftheunit.

Fig. 13

Fig. 12Female Coupling

5/8"ODDischargeLine(Insulated)

Remote Condenser Unit

3/8"ODLiquidLine(Insulated)

IcemakerMale Fitting

Service Loop

Apply POE Oil or

Parker Super O Lubeto Entire Male Fitting

THREAD

SEALANT

ThreadsDiaphragm

O-Ring

Brush

Male Fitting DO NOT USETHREAD SEALANT

POLYOL

ESTER

(POE) OIL

PARKER

SUPER O LUBE

Fig. 14

BackupWrench

ReerenceLine

1/6Turn

Wrench

Wrench

Ater Tight, Tighten anAdditional 1/6 Turn

BackupWrench


25/38

25

5. Rerigerant Charge (Line Set Exceeding 66 Feet)

CAUTIONThe icemaker, line set, and remote condenser unit must contain the sametype o rerigerant. Mixing o rerigerants will result in improper operation andpossible damage to the rerigeration system.

The maximum line length or the standard rerigerant charge is 66 eet. Should aninstallation require a longer line length, additional rerigerant must be added. Add 0.4 oz. oR-404A or each oot over 66 eet to a maximum o 100 eet. Hoshizaki Technical Support isavailable at 1-800-233-1940 or recommendations.

Afterweighingintheadditionalcharge,marktheunitsnameplatetoshowthenewcorrecttotal rerigerant charge.

6. Electrical Connection

WARNING

1. Electrical connection must meet national, state, and local electrical code

requirements. Failure to meet these code requirements could result in death,electric shock, serious injury, re, or severe damage to equipment.

2. THE REMOTE CONDENSER UNIT MUST BE GROUNDED. Install a properground wire rom the icemaker to the remote condenser unit. Use wire o anappropriate gage and outdoor rating. Failure to properly ground the unit couldresult in death or serious injury.

3. Install line and neutral wires rom the an motor leads in the icemaker to theleads in the remote condenser unit junction box. Use wire o an appropriategage and outdoor rating.

4. Do not connect the an motor leads in the icemaker to incoming power

source. Do not connect the an motor leads in the icemaker together. Do notallow the leads to contact the junction box walls.

5. Do not connect the remote condenser unit to an external power source.

6. To reduce the risk o electric shock, make all remote condenser unitconnections beore connecting the icemaker power supply.

7. The icemaker should have power or a minimum o 4 hours prior to startup toprevent compressor damage.

Usuallyanelectricalpermitandservicesofalicensedelectricianarerequired.

Theopeningforthepowersupplyconnectionis7/8"DIAtota1/2"tradesizeconduit.


26/38

26

1) Remove the louver panel. See Fig. 15.

2) Remove the junction box cover on the remote condenser unit. Remove the an motorjunction box cover on the icemaker.

3) Install a ground wire rom the icemaker to the remote condenser unit. Use wire o an

appropriate gage and outdoor rating.

4) Install line and neutral wires rom the an motor leads in the icemaker to the leads inthe remote condenser unit junction box. Use wire o an appropriate gage and outdoorrating.

5) Replace the junction box covers and the louver panel in their correct positions.

7. Stacking Condenser Unit

1) Install the lower remote condenser unit as described earlier in this section.

2) Place the upper remote condenser unit on top o the lower. See Fig. 16.3) Secure the upper remote condenser unit to the lower remote condenser unit with the

4 screws provided.

4) Install rerigerant lines and make electrical connection as described earlier in thissection.

Fig. 15Screws

Louver Panel

Junction BoxCover

Remote Condenser Unit Icemaker

Screw

Fan Motor Junction

Box Cover

Fig. 16

Upper RemoteCondenser Unit

Screws

Lower RemoteCondenser Unit

Screws


27/38

27

H. Water Supply and Drain Connections

See Fig. 17, 18, and 19

WARNING

1. Water supply and drain connections must be installed in accordance with

applicable national, state, and local regulations.

2. Normal operating water temperature should be within 45F to 90F (7Cto 32C). Operation o the icemaker, or extended periods, outside o thisnormal temperature range may aect icemaker perormance.

3. To prevent damage to equipment, do not operate the icemaker when thewater supply is o, or i the pressure is below 10 PSIG. Do not run theicemaker until the proper water pressure is reached.

Aplumbingpermitandservicesofalicensedplumbermayberequiredinsomeareas.

Externallters,strainers,orsoftenersmayberequireddependingonwaterquality.Contactyour local Hoshizaki distributor or recommendations.

Watersupplypressureshouldbeaminimumof10PSIGandamaximumof113PSIG.Ifthe pressure exceeds 113 PSIG, the use o a pressure reducing valve is required.

Theicemakerandcondensationdrainline(s),storagebindrainline,andwater-cooledcondenser drain line (i applicable) must be run separately.

Drainlinesmusthave1/4"fallperfoot(2cmper1m)onhorizontalrunstogetagoodfow. A vented tee connection is also required or proper fow.

Drainlinesshouldnotbepipeddirectlytothesewersystem.Anairgapofaminimumof2 vertical inches (5 cm) should be between the end o the drain pipes rom the icemakerand condensation drain, storage bin, and water-cooled condenser (i applicable) and the

foor drain.


28/38

28

KM-1900SAH/3

KM-1900SRH/3

Bin Drain Outlet3/4" FPT

Icemaker Water Supply Line Shut-Off Valve

Icemaker Water Supply Line Drain Valve

Icemaker Water Supply Inlet 1/2" FPT

Icemaker

Drain Outlet3/4" FPT

CondensationDrain Outlet

3/8" OD HardTubeBin

IcemakerRemote Condenser Line Set Connections

Separate piping to approved drain.Leave a 2 inch (5 cm) vertical air gapbetween the end of each pipe and the

drain.

2-inch (5-cm)

air gap

Floor

Drain

Fig. 17

1. Icemaker

Icemakerwatersupplyinletis1/2"femalepipethread(FPT).Aminimumof3/8"nominalID copper water tubing or equivalent is required or the icemaker water supply line.

Anicemakerwatersupplylineshut-offvalveanddrainvalveshouldbeinstalled.

Icemakerdrainoutletis3/4"FPT.Aminimumof3/4"nominalIDhardpipeorequivalentisrequiredfortheicemakerdrainline.Condensationdrainoutletis3/8"ODhardtube.The condensation drain line can be connected to the icemaker drain line or can be runseparately.

Minimum 3/8" Nominal

ID Copper Water Tubing

Minimum 3/4"Nominal ID Hard Pipe

Vent Tube

Vent Tube


29/38

29

KM-1900SWH/3

Connection To An Open Drain System

Condenser Water Supply Inlet 1/2" FPT

Icemaker Water Supply Inlet 1/2" FPT

IcemakerDrain Outlet

3/4" FPT

CondensationDrain Outlet3/8" OD Hard

Tube

Condenser Drain Outlet 3/8" FPT

Bin

Icemaker

Separate piping to approved drain. Leave a

2 inch (5 cm) vertical air gap between theend of each pipe and the drain.

Icemaker Water SupplyLine Shut-Off Valve

Icemaker Water Supply Line Drain Valve

Condenser Water Supply Line Shut-Off Valve

Condenser Water Supply Line Drain Valve

Fig. 18

2-inch (5-cm)

air gap

Floor

Drain

2. Water-Cooled Condenser

a) Connection to an Open Drain System

Condenserwatersupplyinletis1/2"femalepipethread(FPT).Aminimumof3/8"nominalID copper water tubing or equivalent is required or the condenser water supply line.

Acondenserwatersupplylineshut-offvalveanddrainvalveshouldbeinstalled.

Condenserdrainoutletis3/8"FPT.Aminimumof3/8"nominalIDhardpipeorequivalentis required or the condenser drain line.

Insomeareas,abackowpreventermayberequiredinthecoolingwatercircuit.

Inordertomaintaintheproperhighsidepressure,thecondenserwatersupplyinlettemperature should not drop below 45F (7C) and the condenser drain outlet temperaturemust be in the 104F to 115F (40C to 46C) range. Once the icemaker installationis complete, conrm the condenser drain outlet temperature 5 minutes ater a reezecycle starts. I the condenser drain outlet temperature is not in the proper range, use afat blade screwdriver to rotate the adjustment screw on the water-regulating valve untilthe temperature is in the proper range (rotate counterclockwise to raise temperature or

clockwise to lower temperature).


Minimum 3/8" NominalID Copper Water Tubing


Vent Tube



Minimum 3/8"

Nominal ID Hard Pipe

Vent Tube


30/38

30

Fig. 19KM-1900SWH/3

Connection To A Closed Loop System


Condenser Water Supply Line Shut-Off Valve

Condenser Water

Supply LineDrain Valve

Icemaker Water SupplyLine Shut-Off Valve

Icemaker Water Supply

Line Drain Valve

Condenser Return Outlet 3/8" FPT

Icemaker Water SupplyInlet 1/2" FPT

Condenser Return LineShut-Off Valve

Condenser Return Line Drain Valve

Icemaker

Drain Outlet3/4" FPT

CondensationDrain Outlet

3/8" OD HardTubeBin

Icemaker

Separate piping to approveddrain. Leave a 2 inch (5 cm)

vertical air gap between the

end of each pipe and the drain.

2-inch (5-cm)air gap

Floor

Drain

Condenser WaterSupply Inlet

1/2" FPT

b) Connection to a Closed Loop System

Condenserwatersupplyinletis1/2"femalepipethread(FPT).Aminimumof3/8"nominalID copper water tubing or equivalent is required or the condenser water supply line.

Condenserreturnoutletis3/8"FPT.Aminimumof3/8"nominalIDcopperwatertubingorequivalent is required or the condenser return line.

Shut-offvalvesanddrainvalvesshouldbeinstalledatboththecondenserwatersupply

inlet and condenser return outlet.Thewatersupplytothecondensershouldnotdropbelow4GPM.

Thepressuredifferentialbetweenthecondenserwatersupplyinletandcondenserreturnoutlet must be no less than 10 PSIG.

Whenusingaglycolblend,thesolutionmixtureshouldbelessthan30%glycol.

Inordertomaintaintheproperhighsidepressure,thecondenserwatersupplyinlettemperature should not drop below 45F (7C) and the condenser return outlettemperature must be in the 104F to 115F (40C to 46C) range. Once the icemakerinstallation is complete, conrm the condenser return outlet temperature 5 minutes ater areeze cycle starts. I the condenser return outlet temperature is not in the proper range,

use a fat blade screwdriver to rotate the adjustment screw on the water-regulating valveuntil the temperature is in the proper range (rotate counterclockwise to raise temperatureor clockwise to lower temperature).






Vent Tube


31/38

31

I. Final Checklist

WARNINGCHOKING HAZARD: Ensure all components, asteners, and thumbscrewsare securely in place ater installation. Make sure that none have allen into the

storage bin.

1) Is the icemaker level?

2) Is the icemaker in a site where the ambient temperature is within 45F to 100F (7C to38C) and the water temperature within 45F to 90F (7C to 32C) all year around?

3)Isthereatleast6"(15cm)clearanceatsides,rear,andtopoftheicemakerforproperair circulation and ease o maintenance and service?

4) Have the shipping carton, tape, and packing material been removed rom the icemaker?Are the cube guides in their correct positions? Are the separators between the

evaporator banks properly attached to their holding clips?

5) Are all components, asteners, and thumbscrews securely in place?

6) Have all electrical and water connections been made? Do electrical and waterconnections meet all national, state, and local code and regulation requirements?

7) Has the power supply voltage been checked or tested against the nameplate rating?Has a proper ground been installed to the icemaker? On remote air-cooled model, hasa proper ground also been installed to the remote condenser unit? On three phasemodel, has the transormer's voltage tap switch been positioned to match incomingvoltage?

8) Are the water supply line shut-o valve(s) and drain valve(s) installed? Has the water

supply pressure been checked to ensure a minimum o 10 PSIG and a maximum o113 PSIG?Note: The icemaker may stop running when the water supply is o, or i the pressure

is below 10 PSIG. When the proper water pressure is reached, the icemakerautomatically starts running again.

9) Are the compressor hold-down bolts snug? Have the rerigerant lines been checked

to make sure they do not rub or touch other lines or suraces? Have the an blades (iapplicable) been checked to make sure they turn reely?

10) On remote air-cooled model, is the line set tightened and ree o leaks and kinks?

11) On remote air-cooled model, has the icemaker power supply been on or a minimum o4 hours?

12) Has the end user been given the instruction manual, and instructed on how to operatethe icemaker and the importance o the recommended periodic maintenance?

13) Has the end user been given the name and telephone number o an authorized serviceagent?

14) Has the warranty card been lled out and orwarded to the actory or warrantyregistration?


32/38

32

J. Startup

WARNING

1. All parts are actory-adjusted. Improper adjustments may adversely aectsaety, perormance, component lie, and warranty coverage.

2. I the icemaker is turned o, wait or at least 3 minutes beore restarting the

icemaker to prevent damage to the compressor.3. To prevent damage to the water pump, do not leave the control switch in the

"WASH"positionforextendedperiodsoftimewhenthewatertankisempty.

4. On remote air-cooled model, the icemaker should have power or a minimumo 4 hours prior to startup to prevent compressor damage.

5. At startup, conrm that all internal and external connections are ree o leaks.

1) Open the water supply line shut-o valve(s).

2) Remove the ront panel.

3)Movethecontrolswitchonthecontrolboxtothe"ICE"position.

4) Replace the ront panel in its correct position.

5) Turn on the power supply, and allow the icemaker to operate or a total o 10 minutes.

6) Turn o the power supply, then remove the ront panel.

7) Remove the insulation panel. Remove the cap located on the ront bottom part o theice dropping hole. See Fig. 20. Allow the water tank to drain.

8) Replace the cap, insulation panel, and ront panel in their correct positions. Be careulnot to cross thread the cap.

9) Clean the storage bin using a neutral cleaner. Rinse thoroughly ater cleaning.

10) Turn on the power supply to start the automatic icemaking process.

11) When the icemaker is running, hold an ice cube in contact with the bulb. The icemakershould stop within 10 seconds. Adjustment may be needed, particularly at higheraltitude locations.

12) On water-cooled units, conrm proper condenser drain outlet/return outlet temperatureasoutlinedin"II.H.2.Water-CooledCondenser."

Fig. 20

Cap

Ice Dropping Hole Float SwitchAssembly

CleaningValve


33/38

33

III. Cleaning and Maintenance

IMPORTANTEnsure all components, asteners, and thumbscrews are securely in place aterany cleaning or maintenance is done to the equipment.

A. Cleaning and Sanitizing InstructionsHoshizaki recommends cleaning this icemaker at least once a year. More requentcleaning, however, may be required in some existing water conditions.

WARNING

1. To prevent injury to individuals and damage to the icemaker, do not useammonia type cleaners.

2. Always wear liquid-proo gloves to prevent the cleaning and sanitizingsolutions rom coming into contact with skin.

3. Careully ollow any instructions provided with the bottles o cleaning andsanitizing solution.

4. Never run the icemaker when the water tank is empty.

IMPORTANT

1. The cleaning valve is used to allow solution fow to the inside o theevaporator during the cleaning and sanitizing operation. It should be closedor all icemaking operation. The compressor will not operate unless this valve

is completely closed.

2. To open the cleaning valve, the valve handle should be parallel to the valvebody. To close the valve, the valve handle should be at a right angle to thevalve body.

CLOSEDNormal Icemaking Operation

OPEN

Cleaning and Sanitizing Operation(allows solution fow to the inside o the

evaporator)


34/38

34

1. Cleaning Procedure

1)Dilute38.oz.(1,124ml)ofHoshizaki"ScaleAway"with7gal.(26l)ofwarmwater.

2) Remove all ice rom the evaporator and the storage bin.Note: To remove cubes on the evaporator, turn o the power supply and turn it on

ater 3 minutes. The harvest cycle starts and the cubes will be removed rom theevaporator.

3) Turn o the power supply.

4) Remove the ront panel, and then remove the insulation panel by rst removing thethumbscrew, liting up the panel slightly and pulling it towards you.

5) Remove the cap located on the ront bottom part o the ice dropping hole. Drain thewater tank. See Fig. 20.

6) Replace the cap in its correct position. Be careul not to cross thread it.

7) In bad or severe water conditions, clean the foat switch assembly as described below.Otherwise, continue to step 8.

a. Disconnect the vent tube and the fush tube rom the top o the foat switch, thenremove the foat switch assembly rom the mounting bracket and remove the rubberboot rom the bottom o the assembly.

b. Remove the retainer rod rom the bottom o the foat switch assembly, then removethe foat. Be careul not to bend the retainer rod excessively when removing it.

c. Wipe down the foat switch assembly's housing, shat, foat, and retainer rod with

cleaning solution. Clean the inside o the rubber boot and hose with cleaningsolution. Rinse the parts thoroughly with clean water.

d. Reassemble the foat switch assembly and replace it and the rubber boot in theircorrect positions. Reconnect the vent tube and the fush tube.

8) Pour the cleaning solution into the water tank.

9) Fully open the cleaning valve on the let side wall o the machine compartment.

10)Movethecontrolswitchonthecontrolboxtothe"WASH"position.

11) Replace the insulation panel and the ront panel in their correct positions.

12) Turn on the power supply to start the washing process.

13) Turn o the power supply ater 30 minutes.

14) Remove the ront panel and the insulation panel.

15) Remove the cap located on the ront bottom part o the ice dropping hole. Drain thewater tank. Replace the cap and the insulation panel in their correct positions.

16)Movethecontrolswitchtothe"ICE"position.

17) Close the cleaning valve.

Note: The icemaker will not operate unless the cleaning valve is completely closed.


19) Turn on the power supply to ll the water tank with water.

20) Turn o the power supply ater 3 minutes.21) Remove the ront panel and ully open the cleaning valve.


35/38

35

22)Movethecontrolswitchtothe"WASH"position.


24) Turn on the power supply to rinse o the cleaning solution.




Note:Donotreplacetheinsulationpanelwhenyouproceedto"2.SanitizingProcedure."

28) Repeat steps 16 through 27 three more times to rinse thoroughly.Note:Ifyoudonotsanitizetheicemaker,gotostep9in"2.SanitizingProcedure."

2. Sanitizing Procedure - Following Cleaning Procedure

1)Dilute3.5.oz.(104mlor7tbs)ofa5.25%sodiumhypochloritesolution(chlorinebleach) with 7 gal. (26 l) o warm water.

2) Pour the sanitizing solution into the water tank.

3) Replace the insulation panel and the ront panel in their correct positions.Note:Makesurethatthecontrolswitchisinthe"WASH"positionandthecleaningvalve

is open.

4) Turn on the power supply to start the sanitizing process.




8)Repeatsteps16through27in"1.CleaningProcedure"twotimestorinsethoroughly.

9) Close the cleaning valve.



12) Clean the storage bin using a neutral cleaner. Rinse thoroughly ater cleaning.

13) Turn on the power supply to start the automatic icemaking process.


36/38

36

B. Maintenance Instructions

IMPORTANTThis icemaker must be maintained individually, reerring to the instructionmanual and labels provided with the icemaker.

1. Stainless Steel ExteriorTo prevent corrosion, wipe the exterior occasionally with a clean, sot cloth. Use a dampcloth containing a neutral cleaner to wipe o oil or dirt build up.

2. Storage Bin and Scoop

Washyourhandsbeforeremovingice.Usetheplasticscoopprovided(binaccessory).

Thestoragebinisforiceuseonly.Donotstoreanythingelseinthestoragebin.

Cleanthescoopandstoragebinlinerusinganeutralcleaner.Rinsethoroughlyaftercleaning.

3. Condenser (air-cooled and remote air-cooled model)Check the condenser once a year, and clean the coil i required by using a brush orvacuum cleaner. More requent cleaning may be required depending on location.

C. Preparing the Icemaker or Long Storage

CAUTION

1. When storing the icemaker or an extended time or in sub-reezingtemperatures, ollow the instructions below to prevent damage.

2. To prevent damage to the water pump seal, do not operate the icemaker withthecontrolswitchinthe"WASH"positionwhenthewatertankisempty.

When the icemaker is not used or two or three days under normal conditions, it issufficienttomovethecontrolswitchtothe"OFF"position.Whenstoringtheicemakerforan extended time or in sub-reezing temperatures, ollow the instructions below.

1. Remove the water rom the icemaker water supply line:

1) Turn o the power supply, then remove the ront panel.

2)Movethecontrolswitchonthecontrolboxtothe"OFF"position.

3) Close the icemaker water supply line shut-o valve, then open the icemaker watersupply line drain valve.

4) Allow the line to drain by gravity.

5) Attach a compressed air or carbon dioxide supply to the icemaker water supply linedrain valve.


7) Replace the ront panel in its correct position, then turn on the power supply.

8) Blow the icemaker water supply line out using the compressed air or carbon dioxidesupply.

9) Close the icemaker water supply line drain valve.


37/38

37

2. Drain the water tank:

1) Turn o the power supply, then remove the ront panel. Move the control switch to the"OFF"position.

2) Remove the insulation panel. Remove the cap located on the ront bottom part o the icedropping hole. See Fig. 20. Allow the water tank to drain.

3) Replace the cap and the insulation panel in their correct positions. Be careul not tocross thread the cap.

4) Remove all ice rom the storage bin. Clean the storage bin using a neutral cleaner.

Rinse thoroughly ater cleaning.


3. On water-cooled model only, frst remove the water rom the water-cooled

condenser:

1) Make sure the power supply is o, then remove the ront panel and right side panel.

2) Close the condenser water supply line shut-o valve. I connected to a closed loop

system, also close the condenser return line shut-o valve.3) Open the condenser water supply line drain valve. I connected to a closed loop system,

also open the condenser return line drain valve.

4) Attach a compressed air or carbon dioxide supply to the condenser water supply linedrain valve.

5) Open the water regulating valve by using a screwdriver to pry up on the spring retainerunderneath the spring. While holding the valve open, blow out the condenser using the

compressed air or carbon dioxide supply until water stops coming out.

6) Close the drain valve(s).

7) Replace the right side panel and ront panel in their correct positions.


38/38

km-1900s_h(3) hoshizaki instrucciones manual

Documents