Page 1
Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Models
KMD-901MAH
KMD-901MWH
KMD-901MRH
Modular Crescent Cuber
Hoshizaki America, Inc.
Issued: 2-1-2008
Revised: 8-19-2009
INSTRUCTION MANUAL
™
Page 2
IMPORTANT
Only qualied service technicians should attempt to install, service, or maintain
this icemaker. No installation, service, or maintenance should be undertaken
until the technician has thoroughly read this Instruction Manual. Likewise, the
owner/manager should not proceed to operate the icemaker until the installer
has instructed them on its proper operation. Failure to install, operate, and
maintain the equipment in accordance with this manual may adversely affect
safety, performance, and warranty coverage.
HOSHIZAKI provides this manual primarily to assist qualied 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, write, or send an e-mail message to the HOSHIZAKI Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 3069
Attn: HOSHIZAKI Technical Support Department
Phone: 1-800-33-1940 Technical Service
(770) 487-331
Fax: 1-800-843-1056
(770) 487-3360
E-mail: techsupport@hoshizaki.com
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.
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IMPORTANT
This manual should be read carefully before the icemaker is installed and
operated. Only qualied service technicians should install, service, and
maintain the icemaker. Read the warnings contained in this booklet carefully as
they give important information regarding safety. Please retain this booklet for
any further reference that may be necessary.
CONTENTS
I. Specications ..................................................................................................................... 4
A. Nameplate Rating ......................................................................................................... 4
1. KMD-901MAH (air-cooled) ...................................................................................... 4
. KMD-901MWH (water-cooled) ................................................................................ 5
3. KMD-901MRH (remote air-cooled) .......................................................................... 6
B. Dimensions / Connections ............................................................................................ 7
1. KMD-901MAH ......................................................................................................... 7
. KMD-901MWH ........................................................................................................ 8
3. KMD-901MRH ......................................................................................................... 9
II. Installation and Operating Instructions ............................................................................ 10
A. Checks Before Installation .......................................................................................... 10
B. How to Remove Panels .............................................................................................. 10
C. Location ...................................................................................................................... 11
D. Setup .......................................................................................................................... 11
E. Electrical Connection .................................................................................................. 1
F. Installation of Remote Condenser Unit ....................................................................... 13
1. Checks Before Installation ..................................................................................... 13
. Location ................................................................................................................. 13
3. Setup ..................................................................................................................... 14
4. Line Set ................................................................................................................. 14
5. Electrical Connection ............................................................................................. 16
6. Stacking Remote Condenser Unit ......................................................................... 16
G. Water Supply and Drain Connections ........................................................................ 17
H. Final Checklist ........................................................................................................... 19
I. Startup .......................................................................................................................... 0
III. Cleaning and Maintenance ............................................................................................. 1
A. Cleaning and Sanitizing Instructions ........................................................................... 1
1. Cleaning Procedure ...............................................................................................
. Sanitizing Procedure - Following Cleaning Procedure .......................................... 3
B. Maintenance ............................................................................................................... 4
C. Preparing the Icemaker for Long Storage .................................................................. 5
3
Page 4
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
ICE MAKER WITHOUT
STORAGE MEANS
946Z
COMPONENT
I. Specications
HOSHIZAKI ICE MAKER
A. Nameplate Rating
1. KMD-901MAH (air-cooled)
MODEL NUMBER KMD-901MAH
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR 208-230V 8.4RLA 56LRA
PUMP 120V 0.5FLA 10W
FAN 120V 0.85FLA 50W
OTHER 115-120V 0.15A
MAXIMUM FUSE SIZE 20 AMPS
MAX. HACR BREAKER(USA ONLY) 20 AMPS
MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS
MINIMUM CIRCUIT AMPACITY 20 AMPS
DESIGN PRESSURE HI-467PSI LO-230PSI
REFRIGERANT 404A 4 LBS 3.0 OZ
208-230/60/1 (3 WIRE
WITH NEUTRAL FOR
115V)
See the nameplate for electrical and refrigeration specications. This nameplate is located
on 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 specications and design without prior notice.
4
Page 5
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
ICE MAKER WITHOUT
STORAGE MEANS
946Z
COMPONENT
2. KMD-901MWH (water-cooled)
HOSHIZAKI ICE MAKER
MODEL NUMBER KMD-901MWH
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR 208-230V 6.6RLA 56LRA
PUMP 120V 0.5FLA 10W
FAN --- --- --OTHER 115-120V 0.15A
MAXIMUM FUSE SIZE 20 AMPS
MAX. HACR BREAKER(USA ONLY) 20 AMPS
MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS
MINIMUM CIRCUIT AMPACITY 20 AMPS
DESIGN PRESSURE HI-427PSI LO-230PSI
REFRIGERANT 404A 2 LB 3.3 OZ
208-230/60/1 (3 WIRE
WITH NEUTRAL FOR
115V)
See the nameplate for electrical and refrigeration specications. This nameplate is located
on 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 specications and design without prior notice.
5
Page 6
3. KMD-901MRH (remote air-cooled)
HOSHIZAKI ICE MAKER
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
ICE MAKER WITHOUT
STORAGE MEANS
946Z
COMPONENT
MODEL NUMBER KMD-901MRH
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR 208-230V 7.9RLA 56LRA
PUMP 120V 0.5FLA 10W
FAN REMOTE 3A MAX
OTHER 115-120V 0.15A
MAXIMUM FUSE SIZE 20 AMPS
MAX. HACR BREAKER(USA ONLY) 20 AMPS
MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS
MINIMUM CIRCUIT AMPACITY 20 AMPS
DESIGN PRESSURE HI-467PSI LO-230PSI
REFRIGERANT 404A
208-230/60/1 (3 WIRE
WITH NEUTRAL FOR
115V)
See the nameplate for electrical and refrigeration specications. This nameplate is located
on 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 specications and design without prior notice.
6
Page 7
B. Dimensions / Connections
1. KMD-901MAH
Unit: mm [inches]
7
Page 8
2. KMD-901MWH
Unit: mm [inches]
8
Page 9
3. KMD-901MRH
Unit: mm [inches]
9
Page 10
II. Installation and Operating Instructions
A. Checks Before Installation
IMPORTANT
1. Install in accordance with all applicable national, state, and local regulations.
. Remove the shipping carton, tape, and packing material. If any are left in the
icemaker, it will not work properly.
3. Ensure all components, fasteners, and thumbscrews are securely in place
after installation.
1) Remove the panels to prevent damage when installing the icemaker. (See "B. How to
Remove Panels.")
) Remove the package containing the accessories.
3) Remove the protective plastic lm from the panels. If the icemaker is exposed to the
sun or to heat, remove the lm 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) See the nameplate on the rear panel, and check that your voltage supplied corresponds
with the voltage specied on the nameplate.
7) This icemaker can be installed on a storage bin or dispenser unit. The KMD-901MAH
requires a storage bin or dispenser unit 4" wide or wider. The KMD-901MWH and
KMD-901MRH require a storage bin or dispenser unit 30" wide or wider. If using a
storage bin with a KMD-901MAH, the recommended bin is HOSHIZAKI ICE STORAGE
BIN, Model B-700 series. With a KMD-901MWH or KMD-901MRH, the recommended
bin is HOSHIZAKI ICE STORAGE BIN, Model B-500 series.
8) On remote air-cooled models, a remote condenser unit is needed. The recommended
remote condenser unit is HOSHIZAKI REMOTE CONDENSER UNIT, Model URC-9F.
B. How to Remove Panels
See Fig. 1
• Front Panel: Remove the screw. Lift up and
towards you.
• Top Panel: Lift up at front slightly, push
rearward, and lift off.
• Side Panel (R): Remove the screw. Slide
forward slightly, and lift off.
• Insulation Panel: Remove thumbscrew, lift up
slightly, and pull towards you.
Top Panel
Insulation
Panel
Front
Panel
Side
Panel (R)
10
Fig. 1
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C. Location
CAUTION
1. This icemaker is not intended for outdoor use. Normal operating ambient
temperature should be within +45°F to +100°F (+7°C to +38°C); Normal
operating water temperature should be within +45°F to +90°F (+7°C to
+3°C). Operation of the icemaker, for extended periods, outside of these
normal temperature ranges may affect icemaker performance.
. This icemaker will not work at sub-freezing temperatures. To prevent damage
to the water supply line, drain the icemaker if the air temperature is going to
go below 3°F (0°C). See "III.C. Preparing the Icemaker for Long Storage."
For best operating results:
• Icemaker should not be located next to ovens, grills, or other high heat producing
equipment.
• Avoid choosing a site where no dripping is allowed.
• Allow 6" (15 cm) clearance at rear, sides, and top for proper air circulation and ease of
maintenance and/or service should they be required.
• Location should provide a rm and level foundation for the equipment.
D. Setup
1) If mounting the unit on top of a storage bin, unpack the storage bin, and attach the four
adjustable legs provided (bin accessory) to the bottom of the storage bin. If mounting
the unit on top of a dispenser, follow the dispenser's setup procedure.
) Position the storage bin/dispenser unit in the selected permanent location.
3) Place the icemaker on top of the storage bin/dispenser unit.
4) Secure the icemaker to the storage bin/dispenser unit using the two mounting brackets
and the bolts provided. See Fig. .
5) Level the icemaker and storage bin/dispenser unit in both the left-to-right and front-torear directions. If using a storage bin, adjust the storage bin legs to make the icemaker
level.
6) Replace the panels in their correct positions.
Mounting
Bracket
Icemaker
Mounting
Bracket
Icemaker
Bolt
Bin
Fig. 2
11
Bolt
Dispenser
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E. Electrical Connection
WARNING
1. Electrical connection must be made in accordance with the instructions on
the "WARNING" tag, provided with the pig tail leads in the junction box.
. Electrical connections must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could cause severe
injury to individuals or extensive damage to equipment.
3. Be sure to install a proper ground to the icemaker.
• Electrical connections must be installed in accordance with applicable national, state,
and local regulations.
• The icemaker requires an independent power supply. See the nameplate for proper
voltage and breaker/fuse size.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.
• The white lead must be connected to the neutral conductor of the power source.
Miswiring results in severe damage to the icemaker. See Fig. 3.
• The opening for the power supply connection is 7/8" DIA to t a 1/" trade size conduit.
• Usually an electrical permit and services of a licensed electrician are required.
WARNING
ELECTRICAL CONNECTION
The white lead must be connected
to the neutral conductor of
the power source.
Miswiring results in severe
damage to the icemaker.
(See Fig. below.)
Fig. 3
1
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F. Installation of Remote Condenser Unit
1. Checks Before Installation
1)
Remove the shipping carton, tape, and packing material.
) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blade moves freely.
2. Location
IMPORTANT
The remote condenser unit is intended for outdoor use. Normal operating
ambient temperature should be within -0°F to +1°F (-9°C to +50°C).
Operation of the remote condenser unit, for extended periods, outside of this
normal temperature range may affect icemaker performance.
The remote condenser unit must be positioned in a permanent site under the following
guidelines:
• A rm and at site.
• A dry and well ventilated area with 4" (61 cm) clearance in both front and rear for ease of
maintenance and service should they be required.
• The maximum line length for the standard refrigerant charge is 66 feet. Should an
installation require a longer line length, additional refrigerant must be added to the
system. Add .4 oz. of R-404A for each foot over 66 feet to a maximum of 100 feet or call
1-800-33-1940 for recommendations.
• The maximum vertical distance between the remote condenser unit and the icemaker is
33 feet above or 10 feet below the icemaker. These distances are measured tting to
tting.
CAUTION
Failure to install the equipment within these guidelines may adversely affect
performance, component life, and warranty coverage.
Min. 4" (61 cm)
Air
Clearance
Air
Locate
Legs
Fig. 4
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3. Setup
1) Secure the legs to the remote condenser unit with eight M8×16 mm hexagon bolts and
M8 nuts as shown in the illustration. See Fig. 5.
) The legs have eight mounting holes. Secure the legs with eight bolts (not included).
Hexagon Bolt
with Split Lock
Washer and
Flat Washer
M8
Hexagon Nut
Fig. 5
4. Line Set
• Precharged tubing kits, available as optional equipment from HOSHIZAKI AMERICA, are
recommended. Field fabricated line sets are allowed, see instructions below.
• The maximum line length for the standard refrigerant charge is 66 feet. Should an
installation require a longer line length, additional refrigerant must be added to the
system. Add .4 oz. of R-404A for each foot over 66 feet to a maximum of 100 feet or call
1-800-33-1940 for recommendations.
Note: If the recommended guidelines of the installation are exceeded, the icemaker
performance may be reduced.
• The maximum vertical distance between the remote condenser unit and the icemaker is
33 feet above or 10 feet below the icemaker. These distances are measured tting to
tting.
CAUTION
Failure to install the equipment within these guidelines may adversely affect
performance, component life, and warranty coverage.
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Factory Line Set Installation
1) Route the factory line set (1/" OD discharge line and 3/8" OD liquid line) from the
remote condenser unit to the icemaker. See Fig. 6. Factory fabricated line sets are
precharged and do not need to be evacuated.
Note: Care should be taken that the icemaker, line set, and remote condenser unit
contain the same type of refrigerant prior to making connections. Mixing of
refrigerants will result in improper operation and possible damage to the
refrigeration system.
) Attach the refrigerant lines to the appropriate male couplings on the remote condenser
unit rst and then at the icemaker. Apply two drops of POE oil to the male threads of
the couplings before tightening.
3) Tighten the couplings 1/4 turn beyond fully seated. A backup wrench is recommended.
Field Fabricated Line Set Installation
1) Route a 1/" OD copper tubing discharge line and a 3/8" OD copper tubing liquid line
between the remote condenser unit and the icemaker. See Fig. 6.
) Insulate the two copper tubings separately.
3) Install Parker quick connect couplings on each end. OS-QUICK, a universal quick
connect coupling kit available as optional equipment from HOSHIZAKI AMERICA, is
recommended.
4) Evacuate through the charging ports on the Parker quick connect couplings and charge
with R-404A refrigerant vapor to a pressure of 15 to 30 PSIG.
Note: Care should be taken that the icemaker, line set, and remote condenser unit
contain the same type of refrigerant prior to making connections. Mixing of
refrigerants will result in improper operation and possible damage to the
refrigeration system.
5) Attach the refrigerant lines to the appropriate male couplings on the remote condenser
unit rst and then at the icemaker. Apply two drops of POE oil to the male threads of
the couplings before tightening.
6) Tighten the couplings 1/4 turn beyond fully seated. A backup wrench is recommended.
Icemaker
Fan Motor Junction Box
Remote
Condenser
Unit
Louver Panel
Junction Box (Fan
Motor Leads Inside)
Liquid Line
(Fan Motor Leads Inside)
Female Coupling
Liquid Line
Discharge
Line
3/8" OD
1/" OD
3/8" OD
1/" OD
Female Coupling
Discharge Line
Pipe Insulation
15
Fig. 6
Page 16
5. Electrical Connection
WARNING
1. Electrical connections must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could cause severe
injury to individuals or extensive damage to equipment.
. Be sure to install a proper ground from the icemaker to the remote condenser
unit.
• This remote 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 t a 1/" trade size conduit.
• Usually an electrical permit and services of a licensed electrician are required.
1) Remove the louver panel.
) Remove the junction box cover on the remote condenser unit. Remove the fan motor
junction box cover on the icemaker.
3) Install a ground wire from the icemaker to the remote condenser unit.
4) Connect the fan motor leads in the junction box of the remote condenser unit to the fan
motor leads in the fan motor junction box of the icemaker.
5) Replace the junction box covers and the louver panel in their correct positions.
6. Stacking Remote Condenser Unit
1) Secure the lower remote condenser unit to the legs with eight bolts (not included).
) Attach the upper remote condenser unit on the top of the lower.
3) Secure the upper remote condenser unit with the four screws provided.
4) Install refrigerant lines, and make electrical connection for each fan motor as shown
earlier in this section.
Screw
Screw
Junction Box Cover
Upper Remote
Condenser Unit
Screw
Lower Remote
Condenser Unit
Louver Panel
Fig. 7
Fig. 8
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Page 17
G. Water Supply and Drain Connections
See Fig. 9
CAUTION
To prevent damage to equipment, do not operate the icemaker when 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/" female pipe thread (FPT).
Note: On water-cooled model, two 1/" 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
3/8" 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.
• The minimum recommended drain line is 3/4" OD hard pipe.
• Icemaker drain outlet is 3/4" FPT. Condensation drain outlet is a 5/8" OD stainless tube.
The icemaker and condensation drain line(s) must be run separately from the storage
bin/dispenser unit drain line.
Note: Water-cooled model also has a 3/8" FPT condenser drain outlet. Drain line must
be run separately.
• Drain lines must have 1/4" fall per foot ( cm per 1 m) on horizontal runs to get good ow.
A vented tee connection is also required for proper ow.
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of
vertical inches (5 cm) should be between the end of the drain pipes from the icemaker,
the condensation drain, the storage bin/dispenser unit, and the water-cooled condenser
(if applicable) and the oor drain.
• This icemaker must 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.
• Water-Cooled Model Only: In some areas, a back ow preventer may be required in the
cooling water circuit.
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KMD-901MAH
KMD-901MRH
with Storage Bin
Icemaker
Water Supply
Inlet
1/2" FPT
Icemaker
Drain Outlet
3/4" FPT
Bin Drain Outlet
3/4" FPT
KMD-901MWH
Icemaker
Bin
Icemaker Water Supply Line
Shut-Off Valve
Icemaker Water Supply Line
Drain Valve
Condensation Drain
5/8" OD Stainless Tube
Separate piping to approved drain.
Leave a two-inch (5 cm) vertical air
gap between the end of each pipe
and the drain.
Two-inch
(5 cm) air
gap
Floor
Drain
Icemaker
Water Supply
Inlet
1/2" FPT
Condenser
Water Supply
Inlet
1/2" FPT
Condenser
Drain Outlet
3/8" FPT
Icemaker
Drain Outlet
3/4" FPT
Bin Drain Outlet
3/4" FPT
Bin
Icemaker
Icemaker Water Supply Line
Shut-Off Valve
Icemaker Water Supply Line
Drain Valve
Condenser Water Supply Line
Shut-Off Valve
Condenser Water Supply Line
Drain Valve
Condensation Drain
5/8" OD Stainless Tube
Separate piping to approved drain.
Leave a two-inch (5 cm) vertical air
gap between the end of each pipe
and the drain.
18
Fig. 9
Page 19
H. Final Checklist
1) Is the icemaker level?
) Is the icemaker in a site where the ambient temperature is within +45°F to +100°F
(+7°C to +38°C) and the water temperature within +45°F to +90°F (+7°C to +3°C) all
year around?
3) Is there at least 6" (15 cm) clearance around the icemaker for proper air circulation and
maintenance or service?
4) Have the shipping carton, tape, and packing material been removed from the
icemaker? Are the cube guides in the correct positions?
5) Are all components, fasteners, and thumbscrews securely in place?
6) Have all electrical and piping connections been made?
7) Has the power supply voltage been checked or tested against the nameplate rating?
Has a proper ground been installed to the icemaker? On remote air-cooled models, has
a proper ground also been installed to the remote condenser unit?
8) Are the water supply line shut-off valve and drain valve installed? Has the water
supply pressure been checked to ensure a minimum of 10 PSIG and a maximum of
113 PSIG?
Note: The icemaker may stop running when the water supply is off, or if the pressure
is below 10 PSIG. When the proper water pressure is reached, the icemaker
automatically starts running again.
9) Are the compressor hold-down bolts snug? Have the refrigerant lines been checked to
make sure they do not rub or touch other lines or surfaces?
10) Has the bin control been checked for correct operation? To conrm bin control
operation, press and hold the bin control’s actuator paddle during the rst 5 minutes of
the freeze cycle. The icemaker should shut down in approximately 15 seconds.
11) 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?
1) Has the end user been given the name and telephone number of an authorized service
agent?
13) Has the warranty card been lled out and forwarded to the factory for warranty
registration?
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I. Startup
CAUTION
1. All parts are factory-adjusted. Improper adjustments may result in failure.
. If the icemaker 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. This will cause damage to the water pump seal.
1) Open the water supply line shut-off valve.
) Remove the front panel.
3) Move the control switch on the control box to the "ICE" position.
4) Replace the front panel in its correct position.
5) Turn on the power supply and allow the icemaker to operate for 5 minutes to ll up the
water tank.
6) Remove the front panel and move the control switch to the "WASH" position. Replace
the front panel in its correct position and allow the icemaker to run for 5 minutes.
7) Turn off the power supply, then remove the front panel.
8) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overow cap, overow pipe, and water shield. Remove the drain plug and
drain the water tank. See Fig. 10.
9) Replace all parts removed in step 8 in their correct positions. Be careful not to cross
thread the drain plug or overow pipe.
10) Clean the storage bin/dispenser unit liner using a neutral cleaner. Rinse thoroughly
after cleaning.
11) Move the control switch to the "ICE" position and replace the front panel in its correct
position.
1) Turn on the power supply to start the
automatic icemaking process.
Overow Cap
Fig. 10
Overow Pipe
Cube Guide A
Water Shield
Drain Plug
Cube Guide B
0
Page 21
III. Cleaning and Maintenance
IMPORTANT
Ensure all components, fasteners, and thumbscrews are securely in place after
any cleaning or maintenance is done to the equipment.
A. Cleaning and Sanitizing Instructions
HOSHIZAKI recommends cleaning this icemaker at least once a year. More frequent
cleaning, however, may be required in some existing water conditions.
WARNING
1. To prevent injury to individuals and damage to the icemaker, do not use
ammonia type cleaners.
. Always wear liquid-proof gloves to prevent the cleaning and sanitizing
solutions from coming into contact with skin.
3. Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
4. Never run the icemaker when the water tank is empty.
IMPORTANT
1. The cleaning valve is used to allow solution ow to the inside of the
evaporator during the cleaning and sanitizing operation. It should be closed
for all icemaking operation. The compressor will not operate unless this valve
is completely closed.
. To open the cleaning valve, the valve handle should be parallel to the valve
body. To close the valve, the valve handle should be at a right angle to the
valve body.
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1. Cleaning Procedure
1) Dilute 13.5 . oz. (400 ml) of recommended cleaner Hoshizaki "Scale Away" or "LIMEA-WAY," (Economics Laboratory, Inc.) with .5 gal. (9.5 l) of warm water.
) Remove all ice from the evaporator and the storage bin.
Note: To remove cubes on the evaporator, turn off the power supply and turn it back on
after 3 minutes. The harvest cycle starts and the cubes will be removed from the
evaporator.
3) Turn off the power supply.
4) Remove the front panel. Remove the insulation panel. Remove cube guide B, then
remove cube guide A. Remove the overow cap, overow pipe, and water shield. See
Fig. 11.
5) Remove the drain plug and drain the water tank. Replace the drain plug in its correct
position. Be careful not to cross thread it.
6) Replace the water shield, overow pipe, overow cap, cube guide A, and cube guide B
in their correct positions. Be careful not to cross thread the overow pipe.
7) In bad or severe water conditions, clean the oat switch as described below. Otherwise,
continue to step 8.
a. Disconnect the vent tube and ush tube from the top of the oat switch, then
remove the oat switch and rubber boot.
b. Remove the retainer rod from the bottom of the oat switch assembly, then remove
the oat. Be careful not to bend the retainer rod excessively when removing it.
c. Wipe down the oat switch assembly's housing, shaft, oat, and retainer rod with
cleaning solution. Clean the inside of the rubber boot and hose with cleaning
solution. Rinse the parts thoroughly with clean water.
d. Reassemble the oat switch assembly and replace it and the rubber boot in their
correct positions. Reconnect the vent tube and the ush tube.
8) Pour the cleaning solution into the water tank.
Overow Cap
Fig. 11
Overow Pipe
Cube Guide A
Water Shield
Drain Plug
Cube Guide B
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9) Fully open the cleaning valve on the left side wall of the machine compartment.
10) Move the control switch on the control box to the "WASH" position. Replace the
insulation panel and the front panel in their correct positions.
11) Turn on the power supply to start the washing process.
1) Turn off the power supply after 30 minutes.
13) Remove the front panel.
14) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overow cap, overow pipe, and water shield.
15) Remove the drain plug and drain the water tank. Replace the drain plug in its correct
position. Be careful not to cross thread it.
16) Replace the water shield, overow pipe, overow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overow
pipe.
17) Move the control switch to the "ICE" position.
18) Close the cleaning valve.
Note: The icemaker will not operate unless the cleaning valve is completely closed.
19) Replace the front panel in its correct position.
0) Turn on the power supply to ll the water tank with water.
1) Turn off the power supply after 3 minutes.
) Remove the front panel and fully open the cleaning valve.
3) Move the control switch to the "WASH" position.
4) Replace the front panel in its correct position.
5) Turn on the power supply to rinse off the cleaning solution.
6) Turn off the power supply after 5 minutes.
7) Remove the front panel.
8) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overow cap, overow pipe, and water shield.
9) Remove the drain plug and drain the water tank. Replace the drain plug in its correct
position. Be careful not to cross thread it.
30) Replace the water shield, overow pipe, overow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overow
pipe.
31) Repeat steps 17 through 30 three more times to rinse thoroughly.
Note: If you do not sanitize the icemaker, go to step 1 in ". Sanitizing Procedure."
2. Sanitizing Procedure - Following Cleaning Procedure
1) Dilute a 5.5% sodium hypochlorite solution (chlorine bleach) with warm water (add
1.5 . oz. (37 ml) to .5 gal. (9.5 l) of water).
) Remove the insulation panel.
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3) Pour the sanitizing solution into the water tank.
4) Replace the insulation panel and the front panel in their correct positions.
Note: Make sure that the control switch is in the "WASH" position and the cleaning
valve is open.
5) Turn on the power supply to start the sanitizing process.
6) Turn off the power supply after 15 minutes.
7) Remove the front panel.
8) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overow cap, overow pipe, and water shield.
9) Remove the drain plug and drain the water tank. Replace the drain plug in its correct
position. Be careful not to cross thread it.
10) Replace the water shield, overow pipe, overow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overow
pipe.
11) Repeat steps 17 through 30 in "1. Cleaning Procedure" two times to rinse thoroughly.
1) Close the cleaning valve.
13) Move the control switch to the "ICE" position.
14) Replace the front panel in its correct position.
15) Clean the storage bin/dispenser unit liner using a neutral cleaner. Rinse thoroughly
after cleaning.
16) Turn on the power supply to start the automatic icemaking process.
B. Maintenance
IMPORTANT
This icemaker must be maintained individually, referring to the instruction
manual and labels provided with the icemaker.
1. Stainless Steel Exterior
To prevent corrosion, wipe the exterior occasionally with a clean, soft cloth. Use a damp
cloth containing a neutral cleaner to wipe off oil or dirt build up.
2. Storage Bin and Scoop
• Wash your hands before removing ice. Use the plastic scoop provided (bin accessory).
• The storage bin/dispenser unit is for ice use only. Do not store anything else in the
bin/dispenser.
• Clean the scoop and the storage bin/dispenser unit liner using a neutral cleaner. Rinse
thoroughly after cleaning.
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3. Air Filters (air-cooled model only)
Plastic mesh air lters remove dirt and dust from the air, and keep the condenser from
getting clogged. As the lters get clogged, the icemaker’s performance will be reduced.
Check the lters at least twice a month. When clogged, use warm water and a neutral
cleaner to wash the lters.
4. Condenser (air-cooled and remote air-cooled models only)
Check the condenser once a year, and clean if required by using a brush or vacuum
cleaner. More frequent cleaning may be required depending on location.
C. Preparing the Icemaker for Long Storage
CAUTION
When shutting off the icemaker for an extended time, drain out all water from
the water line and remove the ice from the storage bin/dispenser unit. The bin/
dispenser 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.
When the icemaker is not used for two or three days, it is sufcient to only move the control
switch to the "OFF" position, unless the icemaker will be at sub-freezing temperatures.
1. On water-cooled model only, rst remove the water from the water-cooled
condenser:
1) Turn off the power supply and remove the front panel and right side panel.
) Close the condenser water supply line shut-off valve and open the condenser water
supply line drain valve. See Fig. 9.
3) Attach a compressed air or carbon dioxide supply to the condenser water supply line
drain valve.
4) Open the water regulating valve by using a screwdriver to pry up on the spring retainer
underneath the spring. While holding the valve open, blow out the condenser using the
compressed air or carbon dioxide supply until water stops coming out.
5) Close the condenser water supply line drain valve and replace the right side panel in its
correct position.
2. Remove the water from the icemaker water supply line:
1) If you have not already done so, turn off the power supply and remove the front panel.
) Close the icemaker water supply line shut-off valve and open the icemaker water
supply line drain valve. See Fig. 9.
3) Allow the line to drain by gravity.
4) Attach a compressed air or carbon dioxide supply to the icemaker water supply line
drain valve.
5) Make sure at least 3 minutes have elapsed since you turned off the power supply.
Make sure the control switch is in the "ICE" position. Replace the front panel in its
correct position and turn on the power supply.
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6) Blow the icemaker water supply line out using the compressed air or carbon dioxide
supply.
7) Close the icemaker water supply line drain valve.
3. Drain the water tank:
1) Turn off the power supply.
) Move the control switch to the "OFF" position.
3) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overow cap, overow pipe, and water shield. See Fig. 11.
4) Remove the drain plug.
5) Remove all ice from the storage bin/dispenser unit. Clean the storage bin/dispenser unit
using a neutral cleaner. Rinse thoroughly after cleaning.
6) Replace the drain plug, water shield, overow pipe, overow cap, cube guide A, cube
guide B, and insulation panel in their correct positions. Be careful not to cross thread
the drain plug or overow pipe.
7) Replace the front panel in its correct position.
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HOSHIZAKI AMERICA, INC.
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A1WD10B
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