Hoshizaki KMD410MAH Instruction Manual

Hoshizaki America, Inc.

Hoshizaki

Modular Crescent Cuber

Models
KMD-410MAH
KMD-410MWH

“A Superior Degree

of Reliability”

www.hoshizaki.com

INSTRUCTION MANUAL

Issued: 12-2-2011

IMPORTANT

Only qualified service technicians should install, service and maintain the
product. 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 product 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, component life, and warranty coverage.

Hoshizaki provides this manual primarily to assist qualified service technicians in the
installation, maintenance, and service of the product.

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 30269

Attn: Hoshizaki Technical Support Department
Phone: [phone] Technical Support

[phone]
Fax: [phone]
[phone]
E-mail: [e-mail]

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.

1

IMPORTANT

This manual should be read carefully before the product is installed and
operated. Only qualified service technicians should install, service, and
maintain the product. 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.

Important Safety Information ---------------------------------------------------------------------------3
I. Specifi cations -------------------------------------------------------------------------------------------4

A. Electrical Data ---------------------------------------------------------------------------------------4

1. KMD-410MAH (air-cooled) -------------------------------------------------------------------4

2. KMD-410MWH (water-cooled) ---------------------------------------------------------------4

B. Dimensions/Connections -------------------------------------------------------------------------5

1. KMD-410MAH -----------------------------------------------------------------------------------5

2. KMD-410MWH -----------------------------------------------------------------------------------6

II. Installation and Operating Instructions -----------------------------------------------------------7

A. Checks Before Installation -----------------------------------------------------------------------7
B. How to Remove Panels ---------------------------------------------------------------------------8
C. Location ----------------------------------------------------------------------------------------------8
D. Setup --------------------------------------------------------------------------------------------------9
E. Bin Control Installation --------------------------------------------------------------------------10
F. Electrical Connection ----------------------------------------------------------------------------12
G. Water Supply and Drain Connections ------------------------------------------------------13

1. Icemaker ---------------------------------------------------------------------------------------- 14

2. Water-Cooled Condenser ------------------------------------------------------------------- 15
H. Final Checklist ------------------------------------------------------------------------------------17
I. Startup ----------------------------------------------------------------------------------------------- 18

CONTENTS

PAGE

III. Cleaning and Maintenance Instructions ------------------------------------------------------ 19

A. Cleaning --------------------------------------------------------------------------------------------19

1. Cleaning Procedure --------------------------------------------------------------------------20

2. Sanitizing Procedure ------------------------------------------------------------------------- 23
B. Maintenance ---------------------------------------------------------------------------------------24

1. Stainless Steel Exterior ---------------------------------------------------------------------- 24

2. Storage Bin and Scoop ----------------------------------------------------------------------24

3. Air Filters ----------------------------------------------------------------------------------------24

4. Condenser -------------------------------------------------------------------------------------- 24
C. Preparing the Icemaker for Long Storage ------------------------------------------------- 25

2

Important Safety Information

Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, or damage to the unit.

WARNING

NOTICE

Indicates a situation which could result in damage to the unit or

IMPORTANT

This product should be destined only to the use for which it has been
expressly conceived. Any other use should be considered improper and
therefore dangerous. The manufacturer cannot be held responsible for injury
or damage resulting from improper, incorrect, and unreasonable use.

To reduce the risk of death, electric shock, serious injury, or fi re, follow
basic precautions including the following:

• Only qualifi ed service technicians should install and service the icemaker.

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

• Electrical connection must be hard-wired and must meet national, state, and
local electrical code requirements. Failure to meet these code requirements
could result in death, electric shock, serious injury, fi re, or severe damage to
equipment.

• This unit requires an independent power supply. See the nameplate for
proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse
can result in a tripped breaker, blown fuses, or damage to existing wiring.
This could lead to heat generation or fi re.

• THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit
could result in death or serious injury.

• Move the control switch to the “OFF” position and turn off the power supply
before servicing. Lockout/Tagout to prevent the power supply from being
turned back on inadvertently.

• Do not make any alterations to the unit. Alterations could result in electric
shock, injury, fi re, or damage to the unit.

Indicates a hazardous situation which could result in death or

serious injury.

property.

Indicates important information about the use and care of the

unit.

WARNING

3

I. Specifi cations
A. Electrical Data

1. KMD-410MAH (air-cooled) 2. KMD-410MWH (water-cooled)

For certifi cation marks, see the nameplate
on the left or right side panel.

For certifi cation marks, see the nameplate
on the left or right side panel.

The nameplate provides electrical and refrigerant data. The nameplate is located on the
left or right side panel.

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

4

B. Dimensions/Connections

1. KMD-410MAH

Unit: mm [inches]

5

2. KMD-410MWH

Unit: mm [inches]

6

II. Installation and Operating Instructions

WARNING

1. Install in accordance with all applicable national, state, and local codes and
regulations.

2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews
are securely in place after installation. Make sure that none have fallen into
the dispenser unit/storage bin.

A. Checks Before Installation

NOTICE

Remove all shipping cartons, tape, and packing material. If any are left in the
icemaker, it will not work properly.

• Visually inspect the exterior of the shipping container and immediately report any
damage to the carrier. Upon opening the container, any concealed damage should also
be immediately reported to the carrier.

• Remove the panels to prevent damage when installing the icemaker. (See “B. How to
Remove Panels.”)

• Remove the package containing the accessories.

• Remove the protective plastic fi lm from the panels. If the icemaker is exposed to the sun
or to heat, remove the fi lm after the icemaker cools.

• Check that refrigerant lines do not rub or touch lines or other surfaces, and that the fan
blade turns freely.

• Check that the compressor is snug on all mounting pads.

• See the nameplate on the left or right side panel, and check that your voltage supplied
corresponds with the voltage specifi ed on the nameplate.

• This icemaker can be installed on a storage bin or dispenser unit 22” wide or wider. If
using a storage bin, HOSHIZAKI STORAGE BIN, Model B-300 series is recommended.

7

B. How to Remove Panels

- See Fig. 1

• Front Panel: Loosen the screws. 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.

• Front Insulation: Lift up slightly, and pull towards you.

• Top Insulation: Push up at front corner, and pop off.

Top Panel

Top Insulation

Front Insulation

Side Frame

Screws

C. Location

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 32°C).
Operation of the icemaker, for extended periods, outside of these normal
temperature ranges may affect icemaker performance.

Front Panel

Fig. 1

NOTICE

Screw

Side Panel

8

2. This icemaker will not work at sub-freezing temperatures. To prevent
damage to the water supply line, drain the icemaker when the air
temperature is below 32°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, left side, and top and 12” (30 cm) clearance at right
side for proper air circulation and ease of maintenance and/or service should they be
required.

• Location should provide a fi rm and level foundation for the equipment.

D. Setup

NOTICE

Do not use the side frame to lift the icemaker. See Fig. 1. Lift the icemaker
from the base.

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.

2) Position the storage bin/dispenser unit in the selected

permanent location.

Icemaker

3) Place the icemaker on top of the storage bin/dispenser unit

by holding the bottom.

4) Secure the icemaker to the storage bin/dispenser unit using

the two mounting brackets and the bolts provided. See Fig. 2.

Bin

5) Level the icemaker and storage bin/dispenser unit in both

the left-to-right and front-to-rear directions. If using a storage
bin, adjust the storage bin legs to make the icemaker level.

Mounting
Brackets

Bolts

6) Replace the panels in their correct positions.

9

Fig. 2

E. Bin Control Installation

1) Remove the front panel, then
remove the front insulation.

2) Loosen the two thumbscrews
securing the pump motor bracket.
See Fig. 3.

3) Disconnect the discharge hose.

4) Disconnect the pump motor
connector and float switch
connector from the side of the
control box.

Discharge
Hose

Float Switch
Connector

Pump Motor
Connector

Thumbscrews

Snap Tab

Pump Motor Bracket

5) While pushing up the snap tab at
the right side of the pump motor
bracket, pull out the water tank,
cube guide, pump motor bracket,
pump motor and float switch
together. See Fig. 4.

6) Route the bin control lead through
the hole in the base, then into the
bushing provided. See Fig. 5.

Cube Guide

Fig. 3

Pump Motor

Float Switch

Snap Tab

Fig. 4

Bin Control Lead

Fig. 5

10

Bushing

7) While pulling up the bin control lead,
hook the bin control on the right side
interior wall. Then push the bin control
up against the bottom of the unit, and
slide to the back until it snaps in place.
Make sure the slotted holes at the right
side of the bin control are securely
placed on the collars at the bottom of
the unit. See Fig. 6.

Fig. 6

NOTICE

Make sure the bin control is securely in place. Otherwise, ice may get
between gaps and damage the bin control.

Collars

Bin Control

8) Pull up any slack in the bin control lead, then put the bushing attached to the bin
control lead back into the hole in the base.

9) Connect the bin control connector to the side of the control box.

10) Make sure the right and left defl ectors are in their correct positions with the slotted
holes engaged on the collars. Make sure the right and left defl ectors are secured with
the thumbscrews.

Left Defl ector

Right Defl ector Thumbscrew

Thumbscrew

Collars
(Behind Left Defl ector)

Collars

Fig. 7

11

11) Replace the water tank, cube guide, pump motor bracket, pump motor and fl oat switch
in their correct positions until they snap in place.

NOTICE

Be sure to let the discharge hose pass behind the copper tube and connect it
securely in position. See Fig. 3. Otherwise, the discharge hose may be caught
in the front insulation, leading to improper results.

12) Secure the pump motor bracket with the two thumbscrews.

13) Reconnect the pump motor connector and fl oat switch connector.

14) Replace the front insulation and front panel in their correct positions.

F. Electrical Connection

WARNING

1. Electrical connection must be hard-wired and must meet national, state,
and local electrical code requirements. Failure to meet these code
requirements could result in death, electric shock, serious injury, fire, or
severe damage to equipment.

2. This unit requires an independent power supply. See the nameplate for
proper voltage and breaker/fuse size. Failure to use a proper breaker or
fuse can result in a tripped breaker, blown fuse, or damage to existing
wiring. This could lead to heat generation or fi re.

3. THE ICEMAKER MUST BE GROUNDED. Failure to properly ground the
icemaker could result in death or serious injury.

• Usually an electrical permit and services of a licensed electrician are required.

• 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. NOTICE! Miswiring may result in
severe damage to the icemaker. See Fig. 8.

• The opening for the power supply connection is 7/8” DIA to
fi t a 1/2” trade size conduit.

12

Fig. 8

G. Water Supply and Drain Connections

- See Fig. 9, 10 or 11

WARNING

Water supply and drain connections must be installed in accordance with
applicable national, state, and local regulations.

NOTICE

1. Normal operating water temperature should be within 45°F to 90°F (7°C
to 32°C). Operation of the icemaker, for extended periods, outside of this
normal temperature range may affect icemaker performance.

2. 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.

• A plumbing permit and services of a licensed plumber may be required in some areas.

• External filters, strainers, or softeners may be required depending on water quality.
Contact your local Hoshizaki distributor for recommendations.

• 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 icemaker, dispenser unit/storage bin drain line, and water-cooled condenser drain
line (if applicable) must be run separately.

• Drain lines must have 1/4” fall per foot (2 cm per 1 m) on horizontal runs to get a good
fl ow. A vented tee connection is also required for proper fl ow .

• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of
2 vertical inches (5 cm) should be between the end of the drain pipes from the icemaker,
dispenser unit/storage bin, and water-cooled condenser (if applicable) and the fl oor drain.

13

1. Icemaker

• Icemaker water supply inlet is 1/2” female pipe thread (FPT). A minimum of 1/4” nominal
ID copper water tubing or equivalent is required for the icemaker water supply line.

• An icemaker water supply line shut-off valve and drain valve should be installed.

• Icemaker drain outlet is 3/4” FPT. A minimum of 3/4” nominal ID hard pipe or equivalent is
required for the icemaker drain line.

Minimum 1/4” Nominal ID
Copper Water Tubing

Icemaker Water
Supply Inlet
1/2” FPT

Icemaker Drain
Outlet
3/4” FPT

Icemaker

Bin

Minimum 3/4” Nominal ID
Hard Pipe

Icemaker Water Supply Line
Shut-Off Valve

Icemaker Water Supply Line
Drain Valve

Vent Tube

Bin Drain Outlet
3/4”FPT

Vent Tube

2-inch
(5-cm)
air gap

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

KMD-410MAH

Fig. 9

Floor

Drain

14

2. Water-Cooled Condenser

a) Connection to an Open Drain System

• Condenser water supply inlet is 1/2” female pipe thread (FPT). A minimum of 1/4”
nominal ID copper water tubing or equivalent is required for the condenser water supply
line.

• A condenser water supply line shut-off valve and drain valve should be installed.

• Condenser drain outlet is 1/2” FPT. A minimum of 1/4” nominal ID hard pipe or equivalent
is required for the condenser drain line.

• In some areas, a back fl ow preventer may be required in the cooling water circuit.

Condenser
Drain Outlet
1/2” FPT

Condenser Water
Supply Inlet
1/2” FPT

Icemaker Drain
Outlet
3/4” FPT

Bin Drain Outlet
3/4” FPT

Icemaker Water
Supply Inlet
1/2” FPT

Icemaker

Bin

Minimum 1/4” Nominal ID
Copper Water Tubing

Icemaker Water Supply Line
Shut-Off Valve

Condenser Water Supply Line
Shut-Off Valve

Icemaker Water Supply Line
Drain Valve

Condenser Water Supply Line
Drain Valve

Vent Tube

Minimum 3/4”
Nominal ID
Hard Pipe

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

2-inch
(5-cm)
air gap

Minimum 1/4” Nominal ID
Hard Pipe

KMD-410MWH

Connection to an Open Drain System

Fig. 10

Floor

Drain

15

b) Connection to a Closed Loop System

• Condenser water supply inlet is 1/2” female pipe thread (FPT). A minimum of 1/4”
nominal ID copper water tubing or equivalent is required for the condenser water supply
line.

• Condenser return outlet is 1/2” FPT. A minimum of 1/4” nominal ID copper water tubing or
equivalent is required for the condenser return line.

• Shut-off valves and drain valves should be installed at both the condenser water supply
inlet and condenser return outlet.

• The water supply to the condenser should not drop below 4 GPM.

• The pressure differential between the condenser water supply inlet and condenser return
outlet must be no less than 10 PSIG.

• When using a glycol blend, the solution mixture should be less than 30% glycol.

Condenser
Return Outlet
1/2” FPT

Condenser Water
Supply Inlet
1/2” FPT

Icemaker Drain
Outlet
3/4” FPT

Bin Drain Outlet
3/4” FPT

Icemaker Water
Supply Inlet
1/2” FPT

Icemaker

Bin

Minimum 1/4” Nominal ID
Copper Water Tubing

Icemaker Water Supply Line
Shut-Off Valve

Condenser Return Line
Shut-Off Valve

Condenser Water Supply Line
Shut-Off Valve

Icemaker Water Supply Line
Drain Valve

Condenser Return Line
Drain Valve

Condenser Water Supply Line
Drain Valve

Vent Tube

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

2-inch
(5-cm)
air gap

Minimum 3/4” Nominal ID
Hard Pipe

KMD-410MWH

Connection to a Closed Loop System

Fig. 11

Floor

Drain

16

H. Final Checklist

WARNING

CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews

are securely in place after installation. Make sure that none have fallen into
the dispenser unit/storage bin.

1) Is the icemaker level?

2) 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 32°C) all year around?

3) Is there at least 6” (15 cm) clearance at rear, left side, and top and 12” (30 cm)
clearance at right side for proper air circulation and maintenance or service?

4) Have all shipping cartons, tape, and packing material been removed from the
icemaker? Is the cube guide in its correct position?

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

6) Have all electrical and water connections been made? Do electrical and water
connections 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?

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 end user been given the instruction manual, and instructed on how to operate
the icemaker and the importance of the recommended periodic maintenance?

11) Has the end user been given the name and telephone number of an authorized service
agent?

12) Has the warranty card been filled out and forwarded to the factory for warranty
registration?

17

I. Startup

All parts are factory-adjusted. Improper adjustments may adversely affect
safety, performance, component life, and warranty coverage.

1. If the unit is turned off, wait for at least 3 minutes before restarting the
icemaker to prevent damage to the compressor.

2. To prevent damage to the water pump, do not leave the control switch in
the “SERVICE” position for extended periods of time when the water tank is
empty.

3. At startup, confirm that all internal and external connections are free of
leaks.

WARNING

NOTICE

1) Open the water supply line shut-off valve.

2) Remove the front panel.

3) Move the control switch on the control box to the “ICE” position.

4) Replace the front panel in its correct position.

5) Turn on the power supply and allow the icemaker to operate for 5 minutes to fi ll up the
water tank.

6) Remove the front panel and move the control switch to the “SERVICE” position. Move
the service switch to the “WASH” position.

7) Replace the front panel in its correct position and allow the icemaker to run for 5
minutes.

8) Remove the front panel and move the service switch to the “DRAIN” position.

9) Replace the front panel in its correct position and allow the icemaker to drain for 2
minutes.

10) Turn off the power supply.

11) Remove the front panel and move the control switch to the “ICE” position.

18

12) Replace the front panel in its correct position.

13) Clean the storage bin/dispenser unit liner using a neutral cleaner. Rinse thoroughly
after cleaning.

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

15) T o confi rm bin control operation, press the bin control’s actuator paddle during the fi rst
5 minutes of the freeze cycle. The compressor and fan motor should de-energize within
15 seconds, then the drain valve should energize until the water tank empties. After the
water tank empties, the pump motor and drain valve should de-energize.

III. Cleaning and Maintenance Instructions

WARNING

CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews

are securely in place after any cleaning or maintenance is done to the unit.
Make sure that none have fallen into the dispenser unit/storage bin.

A. Cleaning

HOSHIZAKI recommends cleaning this unit 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.

2. Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.

3. Always wear liquid-proof gloves to prevent the cleaning and sanitizing
solutions from coming into contact with skin.

NOTICE

To prevent damage to the water pump, do not leave the control switch in
the “SERVICE” position for extended periods of time when the water tank is
empty.

19

1. Cleaning Procedure

1) Dilute approximately 9.5 fl . oz. (281 ml) of Hoshizaki “Scale Away” with 1.8 gallon (6.8
lit.) of warm water.

2) Remove all ice from the evaporator and the storage bin/dispenser unit.

Note: To remove cubes on the evaporator, turn off the power supply and turn it 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 and move the control switch to the “SERVICE” position. Move
the service switch to the “DRAIN” position.

5) Replace the front panel in its correct position and turn on the power supply for 2
minutes.

6) Turn off the power supply.

7) Remove the front panel then remove the front insulation (the large insulation panel in
front of the evaporator) by lifting up the panel slightly and pulling it towards you.

8) In bad or severe water conditions, clean the fl oat switch as described below. Otherwise,
continue to step 9.

a. Loosen the two thumbscrews securing the pump motor bracket. See Fig. 12.
b. Disconnect the discharge hose.
c. Disconnect the pump motor connector and the fl oat switch connector from the side

of the control box.

While pushing up the snap tab at the right side of the pump motor bracket, pull

d.

out the water tank, cube guide, pump motor bracket, pump motor and fl oat switch
together.

See Fig. 13.

e. Remove the pump motor bracket securing the pump motor and the float switch.

Remove the fl oat switch from the pump motor bracket.

f. Wipe down the fl oat switch housing, shaft and fl oat with cleaning solution. Rinse the

parts thoroughly with clean water.
g. Replace the fl oat switch in its correct position.
h. Replace the removed parts in the reverse order of which they were removed.

20

NOTICE

Be sure to let the discharge hose pass behind the copper tube and connect

it securely in position. See Fig. 12. Otherwise, the discharge hose may be

caught in the front insulation, leading to improper results.

Float Switch

Discharge
Hose

Connector
Pump Motor

Connector

Cube Guide

Snap Tab

Thumbscrews

Pump Motor Bracket

Fig. 12

Pump Motor

Float Switch

Snap Tab

Fig. 13

9) Pour the cleaning solution into the water tank.

10) Move the service switch to the "WASH" position.

11) Replace the front insulation and the front panel in their correct positions.
21

12) Turn on the power supply to 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 in its correct position 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 fi ll 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. 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) Turn off the power supply after 5 minutes.

27) Remove the front panel.

28) Move the service switch to the "DRAIN" position.

29) Replace the front panel in its correct position and turn on the power supply for 2

minutes.

30) Turn off the power supply.

31) Remove the front panel.

32) Repeat 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."

22

2. Sanitizing Procedure - Following Cleaning Procedure

1) Dilute a 5.25% sodium hypochlorite solution (chlorine bleach) with water (add
approximately 0.9 fl . oz. (27 ml) to 1.8 gal. (6.8 lit.) of water).

2) Remove the front insulation.

3) Pour the sanitizing solution into the water tank.

4) Move the service switch to the "WASH" position.

5) Replace the front insulation and the front panel in their correct positions.

6) Turn on the power supply to 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 in its correct position and turn on the power supply for 2
minutes.

11) Turn off the power supply.

12) Remove the front panel.

13) Repeat steps 18 through 31 in "1. 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/dispenser unit liner using a neutral cleaner. Rinse thoroughly
after cleaning.

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

23

B. Maintenance

This icemaker must be maintained individually, referring to the instruction manual and
labels provided with the icemaker.

WARNING

1. Only qualifi ed service technicians should service this icemaker.

2. Move the control switch to the “OFF” position and turn off the power supply
before servicing. Lockout/Tagout to prevent the power supply from being
turned back on inadvertently.

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
storage bin/dispenser unit.

• Clean the scoop and the storage bin/dispenser unit liner using a neutral cleaner. Rinse
thoroughly after cleaning.

3. Air Filters (air-cooled model only)

Plastic mesh air fi lters remove dirt and dust from the air, and keep the condenser from
getting clogged. As the fi lters get clogged, the icemaker’s performance will be reduced.
Check the fi lters at least twice a month. When clogged, use warm water and a neutral
cleaner to wash the fi lters.

4. Condenser (air-cooled model 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 the location.

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C. Preparing the Icemaker for Long Storage

NOTICE

1. When storing the icemaker for an extended time or in sub-freezing
temperatures, follow the instructions below to prevent damage.

2. To prevent damage to the water pump, do not leave the control switch in
the "SERVICE" position for extended periods of time when the water tank
is empty.

When the icemaker is not used for two or three days under normal conditions, it is
suffi cient to move the control switch to the “OFF” position. When storing the icemaker for
an extended time or in sub-freezing temperatures, follow the instructions below.

1. On water-cooled model only, first remove the water from the water-cooled
condenser:

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) Move the control switch to the “ICE” position.

5) Replace the front panel in its correct position and turn on the power supply.

6) Allow 5 minutes for the icemaker to fill with water and the water pump to start
operating.

7) Close the condenser water supply line shut-off valve. If connected to a closed loop
system, also close the condenser return line shut-off valve. See Fig. 10 or 11.

8) Open the condenser water supply line drain valve. If connected to a closed loop
system, also open the condenser return line drain valve.

9) Allow the line to drain by gravity.

10) Attach compressed air or carbon dioxide supply to the condenser water supply line
drain valve.

11) Blow the condenser out using compressed air or carbon dioxide supply until water
stops coming out.

25

12) Close the condenser water supply line drain valve. If connected to a closed loop
system, also close the condenser return line drain valve.

2. Remove the water from the icemaker 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) Close the icemaker water supply line shut-off valve and open the icemaker water
supply line drain valve. See Fig. 9, 10 or 11.

4) Allow the line to drain by gravity.

5) Attach compressed air or carbon dioxide supply to the icemaker water supply line drain
valve.

6) Move the control switch to the “ICE” position.

7) Replace the front panel in its correct position and turn on the power supply.

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

9) Close the icemaker water supply line drain valve.

3. Drain the water tank:

1) Turn off the power supply and remove the front panel.

2) Move the control switch to the “SERVICE” position and move the service switch to the
“DRAIN” position.

3) Replace the front panel in its correct position and turn on the power supply for 2
minutes.

4) Turn off the power supply and remove the front panel.

5) Move the control switch to the “OFF” position.

6) Replace the front panel in its correct position.

7) Remove all ice from the dispenser unit/storage bin. Clean the dispenser unit/storage
bin using a neutral cleaner. Rinse thoroughly after cleaning.

8) Close the icemaker water supply line drain valve.

26

HOSHIZAKI AMERICA, INC.

618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL [phone] FAX [phone] www.hoshizaki.com L1F043103