Hoshizaki KML-400MAE User manual

ISSUED:
HOSHIZAKI
MODULAR CRESCENT CUBER
INSTRUCTION MANUAL
APRIL4,1997
MODEL
KML-400MAE
KML-400MWE

2
HOSHIZAKIAMERICA,INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: HOSHIZAKICare Department
Phone: [phone] Technical Service
[phone]
Fax: [phone]
NOTE: To expedite assistance, all correspondence/communication MUST include the following
information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem
FOREWORD
Only qualified service technicians should attempt to install, service or maintain this
icemaker. No such installation, service or maintenance should be undertaken until the
technician has thoroughly read this Instruction Manual. Likewise, the owner/manager
should not proceed to operate the icemaker until the installer has instructed them on
its proper operation.
HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
installation, maintenance and service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily ad-
dressed, please call or write to the HOSHIZAKI Care Department for assistance.
IMPORTANT
A1BA10A9704

3
• Pleasereviewthismanual. Itshouldbereadcarefullybeforetheicemakerisinstalledand
operated.Onlyqualifiedservicetechniciansshouldinstall,serviceandmaintainthe
icemaker. Thismanualshouldbemadeavailabletothetechnicianpriortoinstallation,
maintenanceorservice.
• Keepthismanualwiththeicemakerforlaterreference.
CONTENTS
PAGE
I. SPECIFICATIONS..................................................................................................... 4
1. NAMEPLATE RATING ............................................................................................ 4
[a]KML-400MAE(Air-cooled) .................................................................................. 4
[b]KML-400MWE(Water-cooled)............................................................................ 5
2.DIMENSIONS/CONNECTIONS............................................................................... 6
[a]KML-400MAE ..................................................................................................... 6
[b]KML-400MWE .................................................................................................... 7
II. INSTALLATION AND OPERATING INSTRUCTIONS.............................................. 8
1. CHECKS BEFORE INSTALLATION ....................................................................... 8
2. HOW TO REMOVE PANELS .................................................................................. 8
3.LOCATION .............................................................................................................. 9
4. SET UP ................................................................................................................... 9
5.ELECTRICALCONNECTION................................................................................ 10
6. WATER SUPPLY AND DRAIN CONNECTIONS................................................... 11
7. FINAL CHECK LIST .............................................................................................. 13
8. START UP............................................................................................................. 14
9. PREPARING THE ICEMAKER FOR LONG STORAGE ....................................... 15
III. MAINTENANCE AND CLEANING INSTRUCTIONS ............................................. 17
1. CLEANING INSTRUCTIONS ................................................................................ 17
[a] CLEANING PROCEDURE............................................................................... 17
[b] SANITIZING PROCEDURE............................................................................. 19
2.MAINTENANCE .................................................................................................... 20
A1BA10A9704

4
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP 120V
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 22
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
A1BA10A9704
KML-400MAE
115-120/60/1
115-120V 11.5RLA 75LRA
0.6 FLA 14W
120V 1 FLA 30W
115-120V 0.15A 20AMPS
20AMPS
20AMPS
20AMPS
HI-427PSI LO-206PSI
1 lb. 5 oz.
I. SPECIFICATIONS
1. NAMEPLATE RATING
[a] KML-400MAE (Air-cooled)
SeetheNameplateforelectricalandrefrigerationspeci-
fications. This Nameplate is located on the upper right
hand side of the rear panel.
Since this Nameplate is located on the rear panel of the
icemaker, it cannot be read when the back of the
icemaker is against a wall or against another piece of
kitchen equipment. Therefore, the necessary electrical
and refrigeration information is also on the rating label,
which can be easily seen by removing only the front
panel of the icemaker.
We reserve the right to make changes in specifications and design without prior notice.

5A1BA10A9704
[b] KML-400MWE (Water-cooled)
KML-400MWE
115-120/60/1
115-120V 11RLA 75LRA
120V 0.6 FLA 14W
120V 0.3 FLA 4W
115-120V 0.15A20AMPS
20AMPS
20AMPS
20AMPS
HI-395PSI LO-206PSI
15 oz.
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 22
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
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.

6
A1BA10A9704
2. DIMENSIONS/CONNECTIONS
[a] KML-400MAE Unit: inches (mm.)

7A1BA10A9704
[b] KML-400MWE Unit: inches (mm.)

8
II. INSTALLATION AND OPERATING INSTRUCTIONS
1. CHECKS BEFORE INSTALLATION
IMPORTANT
Removeshippingcarton,tape(s)andpacking. Ifpackingmaterialisleftinthe
icemaker, it will not work properly.
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)Removetheprotective plasticfilmfromthe panels. Iftheicemakerisexposedtothesun
or to heat, remove the film after the icemaker cools.
4) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blade turns freely.
5) Check that the Compressor is snug on all mounting pads.
6)SeetheNameplateontheRearPanel,andcheckthatyourvoltagesuppliedcorresponds
with the voltage specified on the Nameplate.
7) This icemaker needs a storage bin. The recommended storage bin is HOSHIZAKI ICE
STORAGE BIN, Model B-500 series, DB-200, or DM-180 series.
2. HOW TO REMOVE PANELS - See Fig. 1
a) Front Panel ......... Remove the screws.
Lift up and pull toward
you.
b) Top Panel............ Lift its front up slightly,
push away, and then lift
off.
c) Side Panel (R)..... Remove the screw.
Pull slightly toward you,
and lift off.
d) Insulation Panel... Lift up slightly, and pull
toward you.
A1BA10A9704
Fig. 1

9A1BA10A9704
3. LOCATION
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. Operation oftheicemaker,for
extended periods, outside of these normal temperature ranges may affect
production capacity.
For best operating results:
• Icemaker should not be located next to ovens, grills or other high heat producing
equipment.
• Location should provide a firm and level foundation for the equipment.
•Allow6"clearanceat rear,sidesandtopforproperaircirculationandeaseofmaintenance
and/or service should they be required.
4. SET UP
1) Unpack the Storage Bin, and attach the four adjustable legs provided (bin accessory) to
the bottom of the Storage Bin.
2) Position the Storage Bin in the selected permanent position.
3) Place the icemaker on the top of the Storage Bin.
4) Secure the icemaker to the Storage Bin,
using the two Universal Braces and the two
bolts provided. See Fig. 2
5) Level the icemaker/Storage Bin in
both the left-to-right and front-to-rear
directions. Adjust the Ice Bin Legs to
make the icemaker level.
6) Replace the panels in their correct
positions.
Fig. 2

10
5. ELECTRICAL CONNECTION
WARNING
1.Electrical connectionmust bemade inaccordance withthe instructionson
the “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.
•Thewhiteleadmustbeconnectedtotheneutralconductorofthepowersource. Miswiring
results 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"diameter tofita1/2"tradesizeconduit.
• Usually an electrical permit and services of a licensed electrician are required.
Fig. 3
A1BA10A9704

11 A1BA10A9704
6. WATER SUPPLY AND DRAIN CONNECTIONS - See Fig. 4
IMPORTANT
Donotoperatetheicemakerwhen thewatersupplyisOFF,or ifthepressure
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 ice
making water inlet, and the other is for the cooling water inlet.
• A water supply line shut-off valve and drain valve should be installed. A minimum of 3/8"
OD copper tubing is recommended for the water supply lines.
Note: An optional strainer should be installed next to the water supply inlet in the water
supply line. HOSHIZAKI recommended optional strainer Part Code 311166A01.
• 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.
•Drainoutletforicemakerdumpis3/4"FPT. Theicemakerdrainmustbemadeseparately
from the bin drain.
Note: On water-cooled model, a 3/8" 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 inchesshouldbebetweenthe endof thedrain pipefrom theicemaker 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.

12
A1BA10A9704
Fig. 4
KML-400MWE
KML-400MAE

13 A1BA10A9704
7. FINAL CHECK LIST
1) Is the icemaker level?
2) Is the icemaker in a site where the ambient temperature is within +45°F to +100°F and
the water temperature within +45°F to +90°F all year around?
3) Is there at least 6" clearance at sides, rear and top of the icemaker for maintenance or
service?
4) Have the shipping carton and all tapes and packing been removed from the icemaker?
Is the cube guide in its correct position?
5) Have all electrical and piping connections been made?
6) Has the power supply voltage been checked or tested against the nameplate rating?
And has a proper ground been installed in the icemaker?
7) Are the Water Supply Line Shut-off Valve and Drain Valve installed? Has the water
supplypressurebeencheckedtoensureaminimumof10PSIGandamaximumof113
PSIG?
Note:The icemaker maystop running whenthewater supply isOFF, or ifthe pressure
is below 10 PSIG. When the proper water pressure is reached, the icemaker
automatically starts running again.
8) Have the compressor hold-down bolts and refrigerant lines been checked against
vibration and possible failure?
9) Has the Bin Control Switch been checked for correct operation? When the icemaker
is running, hold an ice cube in contact with the Bulb. The icemaker should stop within
10 seconds.
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 theend user beengiven thename and telephonenumber ofan authorized service
agent?
12) Has the warranty tag been filled out and forwarded to the factory for warranty
registration?

14
A1BA10A9704
8. START UP
CAUTION
1. All parts are factory-adjusted. Improper adjustments may result in failure.
2. If the unit is turned off, wait for at least 3 minutes before restarting the
icemaker to prevent damage to the Compressor.
3. Do not operate the unit in the “WASH” position without water in the Water
Tank.
1) Open the Water Supply Line Shut-off Valve.
2) Remove the Front Panel.
3) Move the toggle Control Switch, on the Control Box, to the “ICE” position.
4) Replace the Front Panel in its correct position.
5)Turnonthepowersupplyandletthemachineoperatefor10minutestoallowforrinsing.
6) Turn off the power supply.
7) Remove the Front Panel.
8)MovetheControlSwitchtothe“Service”position. ThenmovetheServiceSwitchtothe
“Drain” position.
9) Replace the Front Panel.
10) Turn on the power supply for 2 minutes to allow the icemaker to drain.
11) Turn off the power supply and remove the Front Panel.
12) Move the Control Switch, on the Control Box, to the “ICE” position.
13) Replace the Front Panel and turn on the power supply.

15 A1BA10A9704
9. PREPARING THE ICEMAKER FOR LONG STORAGE
CAUTION
Whenshutting off the icemakerforan extended time, drainout all water from
the water line and remove the ice from the Storage Bin. The Storage Bin
should be cleaned and dried. Drain the icemaker to prevent damage to the
water supply line at sub-freezing temperatures, using air or carbon dioxide.
Shut off the icemaker until the proper ambient temperature is resumed.
•Whentheicemakerisnotusedfortwoorthreedays,itissufficienttoonlymovetheControl
Switch to the “OFF” position, unless the icemaker will be at sub-freezing temperatures.
[1] On water-cooled model only, first remove the water from the water-cooled condenser:
1) Turn off the power supply.
2) Remove the Front Panel.
3) Move the Control Switch, on the Control Box, to the “OFF” position.
4) Wait 3 minutes.
5) Move the Control Switch to the “ICE” position.
6) Replace the Front Panel and turn on the power supply.
7)Allow5minutesfortheicemakertofillwithwaterandtheWaterPumptostartoperating.
8) Close the Water-cooled Condenser Water Supply Line Shut-off Valve. See Fig. 4.
9) Open the Drain Valve for the water-cooled condenser water supply line.
10) Allow the line to drain by gravity.
11) Quickly attach compressed air or carbon dioxide supply to the Condenser Water Line
Drain Valve.
12) Blow the water-cooled Condenser out using compressed air or carbon dioxide until
water stops coming out.

16
A1BA10A9704
[2] Remove the water from the potable water supply line:
1) Turn off the power supply and remove the Front Panel.
2) Move the Control Switch, on the Control Box, to the “OFF” position.
3) Wait 3 minutes.
4)ClosethePotableWaterSupplyLineShut-offValveandopenthePotableWaterSupply
Line Drain Valve. See Fig. 4.
5) Allow the line to drain by gravity.
6)AttachcompressedairorcarbondioxidesupplytothePotableWaterLineDrainValve.
7) Move the Control Switch to the “ICE” position.
8) Replace Front Panel and turn on the power supply.
9) Blow the potable water line out using compressed air or carbon dioxide.
[3] Drain the Potable Water Tank:
1) Turn off the power supply.
2) Remove the Front Panel.
3) Move the Control Switch to “SERVICE” and move the Service Switch to the “DRAIN”
position.
4) Replace the Front Panel and turn on the power supply for 2 minutes.
5) Turn off the power supply.

17
III. CLEANING AND MAINTENANCE INSTRUCTIONS
1. CLEANING
WARNING
1. HOSHIZAKI recommends cleaning this unit at least once a year. More
frequent cleaning, however, may be required in some existing water
conditions.
2. To prevent injury to individuals and damage to the icemaker, do not use
ammonia type cleaners.
3. Always wear liquid-proof gloves for safe handling of the cleaning and
sanitizing solution. This will prevent irritation in case the solution contacts
with skin.
[a] CLEANING PROCEDURE
1) Dilute approximately 10.5 fl. oz. of recommended cleaner Hoshizaki “Scale Away” or
“LIME-A-WAY,” (Economics Laboratory, Inc.) with 2 gal. of water.
2) Remove all ice from the Evaporator and the Storage Bin.
Note: ToremovecubesontheEvaporator,turnoffthepowersupplyandturnitonafter
3 minutes. The defrost cycle starts and the cubes will be removed from the
Evaporator.
3) Turn off the power supply.
4) Remove the Front Panel.
5) Place the Control Switch in the “SERVICE” position. Then place the Service Switch in
the “DRAIN” position.
6) Replace the Front Panel and turn on the power supply for 2 minutes.
7) Turn off the power supply.
8) Remove the Front Panel and then remove the Insulation Panel by lifting up the panel
slightly and pulling it toward you.
9) Pour the cleaning solution into the Water Tank.
A1BA10A9704

18
10) Move the Service Switch to the “WASH” position.
11) Replace the Insulation Panel and the Front Panel in their correct positions.
12) Turn on the power supply and start the washing process.
13) Turn off the power supply after 30 minutes.
14) Remove the Front Panel.
15) Move the Service Switch to the “DRAIN” position.
16) Replace the Front Panel and turn on the power supply for 2 minutes.
17) Turn off the power supply and remove the Front Panel.
18) Move the Control Switch to the “ICE” position.
19) Replace the Front Panel in its correct position.
20) Turn on the power supply to fill the Water Tank with water.
21) Turn off the power supply after 3 minutes.
22) Remove the Front Panel.
23) Move the Control Switch to the “SERVICE” position; then move the Service Switch
to the “WASH” position
24) Replace the Front Panel in its correct position.
25) Turn on the power supply to rinse off the cleaning solution.
26) After 5 minutes, turn off the power supply.
27) Remove the Front Panel.
28) Move the Service Switch to the “DRAIN” position.
29) Replace the Front Panel and turn on the power supply for 2minutes.
30) Turn off the power supply.
31) Remove the Front Panel.
31) Repeat the above steps 18) through 31) three more times to rinse thoroughly.
Note: If you do not sanitize the icemaker, go to step 14) in “SANITIZING
PROCEDURE.”
A1BA10A9704

19 A1BA10A9704
[b] SANITIZING PROCEDURE - Following Cleaning Procedure
1) Dilute IMS-II Sanitizer or a 5.25% Sodium Hypochlorite solution with water (Add
1.0 fl. oz. to 2 gal. of water).
Note: IMS-II Sanitizer, Part #SA0004, is available through your Hoshizaki Dealer.
2) Remove the Insulation Panel.
3) Pour the sanitizing solution into the Water Tank.
4) Move the Service Switch to the “WASH” position.
5) Replace the Insulation Panel and the Front Panel in their correct position.
6) Turn on the power supply and start the sanitizing process.
7) Turn off the power supply after 15 minutes.
8) Remove the Front Panel.
9) Move the Service Switch to the “DRAIN” position.
10) Replace the Front Panel and turn on the power supply for 2 minutes.
11) Turn off the power supply.
12) Remove the Front Panel.
13) Repeat the above steps 18) through 31) in “CLEANING PROCEDURE” two times to
rinse thoroughly.
14) Move the Control Switch to the “ICE” position.
15) Replace the Front Panel in its correct position.
16) Clean the Storage Bin with water.
17) Turn on the power supply and start the automatic icemaking process.

20
A1BA10A9704
2. MAINTENANCE
IMPORTANT
This icemaker must be maintained individually, referring to the instruction
manual and labels provided with the icemaker.
1) Stainless Steel Exterior
Topreventcorrosion,wipethe exterioroccasionallywithaclean andsoftcloth. Use
a damp cloth containing a neutral cleaner to wipe off oil or dirt build up.
2) Storage Bin and Scoop
•Washyourhandsbeforeremovingice. Usetheplasticscoopprovided(Accessory).
• The Storage Bin is for ice use only. Do not store anything else in the bin.
• Keep the scoop clean. Clean it by using a neutral cleaner and rinse thoroughly.
• Clean the bin liner by using a neutral cleaner. Rinse thoroughly after cleaning.
3) Air Filter (Air-cooled model only)
A plastic mesh air filter removes dirt or dust from the air, and keeps the Condenser
from getting clogged. As the filter gets clogged, the icemaker’s performance will be
reduced. Checkthefilteratleasttwiceamonth. Whenclogged,usewarmwaterand
a neutral cleaner to wash the filter.
4) Condenser (Air-cooled model only)
ChecktheCondenseronceayear,andcleanifrequiredbyusingabrushorvacuum
cleaner. More frequent cleaning may be required depending on the location of the
icemaker.