MODULAR CRESCENT CUBER

KM-470AJ
KM-470AWJ
KM-470AJ-S
KM-470AWJ-SINSTRUCTION MANUAL

No. 15 Qingqiu Street, Suzhou Industrial Park, Suzhou 215126 China

L1F136105 (051221)

IMPORTANT
This manual should be read carefully before the appliance is installed and operated.
Read the warnings and guidelines contained in this manual carefully as they provide
essential information for the continued safe use and maintenance of the appliance.
Retain this manual for any further reference that may be necessary.

CONTENTS

Important Safety Information.................................................................................................. 1
I. Specifications...................................................................................................................... 3
A. Electrical and Refrigerant Data...................................................................................... 3
B. Dimensions/Connections............................................................................................... 4
II. Installation and Operating Instructions............................................................................... 7
A. Location......................................................................................................................... 7
B. Checks Before Installation............................................................................................. 8
C. How to Remove Panels................................................................................................. 8
D. Setup............................................................................................................................. 9
1. Ice Storage Bin and Icemaker Setup....................................................................... 9
2. Bin Control Installation........................................................................................... 10
E. Electrical Connection....................................................................................................11
F. Water Supply and Drain Connections.......................................................................... 12
1. Icemaker................................................................................................................ 13
2. Water-Cooled Condenser....................................................................................... 14
G. Installation of Remote Condenser Unit........................................................................ 16
1. Location.................................................................................................................. 16
2.Checks Before Installation...................................................................................... 17
3. Setup...................................................................................................................... 17
4. Line Set Exceeding 20 m....................................................................................... 17
5. Line Set Installation................................................................................................ 18
6. Electrical Connection............................................................................................. 21
7. Stacking Remote Condenser Unit.......................................................................... 22
H. Final Checklist............................................................................................................. 23
I. Startup.......................................................................................................................... 24
III. Maintenance.................................................................................................................... 25
A. Maintenance Schedule................................................................................................ 25
B. Cleaning and Sanitizing Instructions............................................................................ 26
IV. Preparing the Appliance for Periods of Non-Use............................................................. 30
V. Warranty........................................................................................................................... 31
VI.Disposal........................................................................................................................... 31

ENGLISH

Important Safety Information

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

WARNING

Indicates a hazardous situation which could result in death orserious injury.

NOTICE

Indicates a situation which could result in damage to the applianceor property.

IMPORTANT

Indicates important information about the installation, use, and careof the appliance.

WARNING
The appliance 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. Failure to install, operate, andmaintain the appliance in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage and may result in costly water
damage.
To reduce the risk of death, electric shock, serious injury, or fire, follow basic
precautions including the following:• Only qualified service technicians should install and service the appliance.
• The appliance must be installed in accordance with applicable national, state, andlocal 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, fire, or damage.
• The icemaker requires an independent power supply of proper capacity. See thespecifications in this manual. Failure to use an independent power supply of propercapacity can result in a tripped breaker, blown fuse, damage to existing wiring, orcomponent failure. This could lead to heat generation or fire.
• THE ICEMAKER MUST BE GROUNDED. Failure to properly ground the icemakercould result in death or serious injury.
• To reduce the risk of electric shock, do not touch the control switch with damp
hands.
• 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 appliance. Alterations could result in electric
shock, serious injury, fire, or damage.
• The appliance is not intended for use by persons (including children) with reduced
physical, sensory, or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction concerning use of theappliance by a person responsible for their safety.

1

ENGLISHWARNING, continued• Children should be properly supervised around the appliance.
• Do not climb, stand, or hang on the appliance or allow children or animals to do so.
Serious injury could occur or the appliance could be damaged.
• Do not use combustible spray or place volatile or flammable substances near theappliance. They might catch fire.
• Keep the area around the appliance clean. Dirt, dust, or insects in the appliancecould cause harm to individuals or damage to the appliance.
Additional Warning for Remote Models• THE REMOTE CONDENSER UNIT MUST BE GROUNDED. The power supply andground connection to the remote condenser unit are supplied from the icemaker.
Failure to properly ground the remote condenser unit could result in death or serious
injury.
• Wire routing (conduit) and disconnect (if required) must meet national, state, andlocal electrical code requirements. Failure to meet these code requirements could
result in death, electric shock, serious injury, fire, or damage.

NOTICE• Follow the water supply, drain connection, and maintenance instructions carefully to
reduce the risk of costly water damage.
• In areas where water damage is a concern, install in a contained area with a floor
drain.
• Install the icemaker in a location that stays above freezing. Normal operating ambient
temperature must be within 7°C to 38°C.
• Do not leave the icemaker on during extended periods of non-use, extended
absences, or in sub-freezing temperatures. To properly prepare the icemaker forthese occasions, follow the instructions in "IV. Preparing the Icemaker for Periods of
Non-Use."• Do not place objects on top of the appliance.
• The dispenser unit/ice storage bin is for ice use only. Do not store anything else in thedispenser unit/ice storage bin.

2

ENGLISH

I. Specifications
A. Electrical and Refrigerant Data

The nameplate provides electrical and refrigerant data. The nameplate is located on the left
panel. For certification marks, see the nameplate.
We reserve the right to make changes in specifications and design without prior notice.
1. KM-470A_J/KM-470A_J-S
Model
KM-470AJ/
KM-470AWJ/
KM-470AJ-S
KM-470AWJ-S
Type
Air-cooled,
Water-cooled,
crescent cube ice
crescent cube ice
Power Supply
1 phase 220-240V
1 phase 220-240V
50Hz/
50Hz/
1 phase 220-230V
1 phase 220-230V
60Hz
60Hz
Power Supply
3.45 kVA (15.0A) /3.64 kVA (15.8A) /Capacity
3.51 kVA (15.2A)
3.51 kVA (15.3A)
Electric
1850W / 1910W
1523W / 1634W
Consumption(AT:32°C，WT:21°C）(AT:32°C，WT:21°C）
Ice Production 495kg / 505kg
495kg / 500kg
per 24h(AT:10°C，WT:10°C）(AT:10°C，WT:10°C）
Dimensions
762mm(W) x762mm(W) x695mm(D) x695mm(D) x825mm(H)825mm(H)
Refrigerant
R404A
R404A
1.40kg (GWP:3920, 0.80kg (GWP:3920,
CO2: 5.488t)
CO2: 3.136t)
Insulation Foam Cyclopentane
Cyclopentane
Blowing Agent
Weight
Net:122kg
Net:107kg(Gross:136kg)(Gross:121kg)
Ambient Temp 7 - 38°C
7 - 38°C
Water Supply
7 - 32°C
7 - 32°C
Temp
Water Supply
0.07 - 0.78MPa
0.07 - 0.78MPa
Pressure(0.7 - 7.8bar)(0.7 - 7.8bar)
Voltage Range 198 - 254V
198 - 254V

3

ENGLISH
B. Dimensions/Connections
1. KM-470AJ/KM-470AJ-S

Units: mm
Rear

Side

24mm

24mm

1

1

1

24mm

BottomNOTICE• KM-470AJ/KM-470AJ-S: Allow 30 cm
clearance at rear, sides, and top for
proper air circulation and ease ofmaintenance and/or service should
they be required.
• The ice storage bin opening mustmatch the bottom opening as in theillustration.

4

ENGLISH
2. KM-470AWJ/KM-470AWJ-S

Units: mm
Rear

Side

24mm

ELECTRICAL SUPPLY
24mm DIA OPENING
197

699

WATER INLET CONDENSER WATER(1/2" FPT) INLET(1/2" FPT)
24mm
478
1

CONDENSERWATER OUTLET(1/2" FPT)

70

200

696

775

MOUNTING
HOLES

132

31

23

12
388

827

750

1

5

WATER DRAIN(3/4" FTP)

32
80

172

602
763

Bottom
169

148

444

305

NOTICE• KM-470AWJ/KM-470AWJ-S: Allow
30 cm clearance at rear, sides, andtop for proper air circulation and easeof maintenance and/or service should
they be required.
• The ice storage bin opening mustmatch the bottom opening as in theillustration.

5

ENGLISH

Intentionally Left Blank

6

ENGLISH
II. Installation and Operating Instructions
WARNING• The appliance must be installed in accordance with applicable national, state, andlocal codes and regulations.
• Failure to install, operate, and maintain the appliance in accordance with thismanual will adversely affect safety, performance, component life, and warranty
coverage and may result in costly water damage.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after installation. Make sure that none have fallen into thedispenser unit/ice storage bin.

A. Location

NOTICE• The icemaker is not intended for outdoor use. Normal operating ambient
temperature must be within 7°C to 38°C; Normal operating water temperaturemust be within 7°C to 32°C. Operation of the icemaker, for extended periods,
outside of these normal temperature ranges may affect icemaker performance.
• The 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 0°C. See "IV. Preparing the Icemaker for Periods of Non-Use."• The icemaker should not be located next to ovens, grills, or other high heat producing
equipment.
• For KM-­470A - J/KM-470A - J-S models, allow 30 cm clearance at rear, sides, and top for
proper air circulation and ease of maintenance and/or service should they be required.
• The location should provide a firm and level foundation for the appliance.

7

ENGLISH
B. Checks Before Installation• 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 shipping carton, tape, and packing material. If any are left in the appliance,
it will not work properly.
• See the nameplate on the left panel, and check that your voltage supplied correspondswith the voltage specified on the nameplate.
• Remove the panels to prevent damage when installing the appliance. See "II.C. How to
Remove Panels."• Remove the package containing the accessories.
• Remove the protective plastic film from the panels. If the appliance is exposed to thesun or to heat, remove the film after the appliance cools.
• Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blade (if applicable) turns freely.
• Check that the compressor is snug on all mounting pads.
• The icemaker can be installed on a storage bin 30" wide or wider. Hoshizaki Ice
Storage Bins, Model B-500 series is recommended. For further options, contact yourlocal Hoshizaki distributor.
Model Number
Bin Width
Recommended Hoshizaki Ice Storage Bin
KM-470A - J/KM-470A - J-S 30" or Wider B-500 Series

For further options, contact your local Hoshizaki distributor.

C. How to Remove Panels
See Fig. 1• Front Panel: Remove the screw. Lift up andpull towards you.

Front
Panel

Insulation
Panel

Top Panel• Top Panel: Lift up at front slightly, pushrearward and lift off.
• Right Side Panel: Remove the screw. Slide
forward slightly and lift off.
• Insulation Panel: Lift up slightly, and pull
towards you.

Side Panel (R)Fig. 1

8

ENGLISH
D. Setup
1. Ice Storage Bin and Icemaker Setup

WARNING
The installer must ensure the ice storage bin is compatible with the icemaker, andthe dispenser unit/ice storage bin and icemaker are properly attached and secured.
1) Unpack the ice storage bin and attach the 4 adjustable legs provided (bin accessory) tothe bottom of the ice storage bin.
2) Position the ice storage bin in its permanent location.
3) Place the icemaker on top of the storage bin.
4) Secure the icemaker to the storage bin using the 2 mounting brackets and the bolts
provided. See Fig. 2.
5) Level the icemaker and storage bin in both the left-to-right and front-to-rear directions.
Adjust the storage bin legs to make the icemaker level.
6) Icemaker: Replace the panels in their correct positions. See Fig. 2.

Icemaker

Bolts

Ice
Storage
Bin

Mounting
Brackets

Fig. 2

9

ENGLISH
2. Bin Control Installation

NOTICE
Before operating the icemaker, the bin control must be installed. Failure to properly
install the bin control could result in ice backup and icemaker damage.
1) Install the bin control thermostat assembly as follows. See Fig. 3.
a. Remove the bin control thermostat assembly from the shipping hook.
b. Remove the 2 thumbscrews below the bin control thermostat assembly.
c. Lower the bin control thermostat assembly through the hole located in the bottom of
the icemaker. Secure the bin control thermostat assembly with the lower hook andthe 2 thumbscrews removed in the previous step.
d. Insert the plug into the receptacle on the assembly until it locks into place.
IMPORTANT! The plug must be inserted into the receptacle for the icemaker tooperate.
2) Replace the panels in their correct positions.

Shipping Hook
Plug

Bin Control
Thermostat
Assembly

Lower Hook
Thumbscrews

Hole

Thumbscrews

HoleFig. 310

Receptacle

ENGLISH
E. Electrical Connection
WARNINGFor All Models• 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 damage.
• The icemaker requires an independent power supply of proper capacity. See thenameplate for electrical specifications. Failure to use an independent power supplyof proper capacity can result in a tripped breaker, blown fuse, damage to existing
wiring, or component failure. This could lead to heat generation or fire.
• THE ICEMAKER MUST BE GROUNDED. Failure to properly ground the icemakercould result in death or serious injury.
• Electrical connection must be made in accordance with the instructions on the"WARNING" tag, provided with the pig tail leads in the junction box. See Fig. 4.
Additional Warnings for Remote Models• To reduce the risk of electric shock, make all remote condenser unit connections
before connecting the icemaker power supply.

NOTICEOn remote models, the appliance must have power for a minimum of 4 hours prior
to startup to prevent compressor damage.
• Usually an electrical permit and services of a licensed electrician are required.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.
• NOTICE! KM-470A_J/KM-470A_J-S models, the main transformer’s voltage tap
switch must be positioned to match incoming voltage at startup.
• The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.
KM-470A_J
KM-470A_J-S

WARNING

ELECTRICAL CONNECTION

230V

THIS UNIT MUST BE GROUNDED
Failure to properly ground or wire
this unit could result in death,serious injury, or severe damage
to the icemaker. The light blue leadmust be connected to the neutral
conductor of the power source.
See diagram below.

LN

220-240/50/1
220-230/60/1

220-240V

JUNCTION BOX

4A1169-011

L
N

BROWN
LIGHT
BLUE

Fig. 4

11

ENGLISH
F. Water Supply and Drain Connections
See Figs. 5
WARNING
Water supply and drain connections must be installed in accordance with applicablenational, state, and local regulations.

NOTICE• Normal operating water temperature should be within 7°C to 32°C. Operation of
the appliance, for extended periods, outside of this normal temperature range may
affect appliance performance.
• Water supply pressure must be a minimum of 0.07MPa (0.7bar) and a maximumof 0.78MPa (7.8bar). If the pressure exceeds 0.78MPa (7.8bar), the use of apressure reducing valve is required.
• To prevent damage to the appliance, do not operate the appliance when the watersupply is off, or if the pressure is below 0.07MPa(0.7bar). Do not run the appliance
until the proper water pressure is reached.
• External filters, strainers, or softeners may be required depending on water quality.
Contact your local Hoshizaki Certified Service Representative or local Hoshizaki
distributor for recommendations.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• The icemaker drain line, ice storage bin drain line, and water-cooled condenser drain line
must be run separately. The condensation drain line can be connected to the icemakerdrain line or can be run separately.
• Drain lines must have 2 cm fall per 1 m on horizontal runs to get a good flow. A vented tee
connection is also required for proper flow.
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of
5 vertical centimeter should be between the end of the drain pipes from the icemaker andcondensation drain, ice storage bin, and water-cooled condenser and the floor drain.

12

ENGLISH
1. IcemakerIcemaker Water
Supply Inlet
1/2" Female PipeThread (FPT)

Minimum Icemaker
Water Supply Line Size
3/8" Nominal ID Copper
Water Tubing or
Equivalent

Icemaker Drain
Outlet3/4" Female PipeThread (FPT)

Minimum Icemaker Condensation
Drain Line Size
Drain Outlet
3/4" Nominal
3/8" OD Hard
ID Hard Pipe or
Tube
Equivalent• An icemaker water supply line shut-off valve and drain valve must be installed.
• Be sure there is sufficient extra water supply line and drain line for the appliance to bepulled out for service.
Icemaker Water Supply Inlet
1/2" FPT

Minimum 3/8" Nominal ID Copper
Water Tubing or Equivalent

Icemaker
Shut-Off Valve

Icemaker
Drain Outlet
3/4" FPT

Drain Valve

Icemaker
Condensation
Drain Outlet
3/8" OD Hard
Tube
Vent Tube
Ice
StorageBin

Be sure there is sufficient
extra water supply line anddrain line for the applianceto be pulled out for service.
Separate piping toapproved drain. Leavea 5-cm vertical air gap
between the end of eachpipe and the drain.

Bin Drain Outlet
3/4" FPT

Fig. 5Model Shown:
KM-470AJ/
KM-470AJ-S

5-cm air gap

Minimum 3/4" Nominal ID
Hard Pipe or Equivalent

Air-Cooled Models and Remote Models

13

Floor

Drain

ENGLISH
2. Water-Cooled Condensera) Connection to an Open Drain System
Condenser Water Minimum Condenser
Supply Inlet
Water Supply Line Size
1/2" Female Pipe 3/8" Nominal ID Copper
Thread (FPT)
Water Tubing or Equivalent

Condenser Drain Minimum Condenser
OutletDrain Line Size
1/2" Female Pipe 3/8" Nominal ID Hard PipeThread (FPT)or Equivalent• A condenser water supply line shut-off valve and drain valve must be installed.
• In some areas, a back flow preventer may be required in the cooling water circuit.
• In order to maintain the proper high side pressure, the condenser water supply inlet
temperature should not drop below 7°C and the condenser drain outlet temperature must
be in the 40°C to 46°C range. Once the icemaker installation is complete, confirm thecondenser drain outlet temperature 5 minutes after a freeze cycle starts. If the condenser
drain outlet temperature is not in the proper range, use a flat blade screwdriver to rotate
the adjustment screw on the water‑regulating valve until the temperature is in the proper
range (rotate counterclockwise to raise temperature or clockwise to lower temperature).

Minimum 3/8" Nominal ID Copper
Water Tubing or Equivalent

Icemaker Water
Supply Inlet
1/2" FPT
Condenser Water
Supply Inlet
1/2" FPT

Icemaker

Shut-Off Valve

Vent Tube

Condenser
Drain Outlet
1/2" FPT

Minimum 3/8" Nominal ID Copper
Water Tubing or Equivalent
Drain Valve

Icemaker
Drain Outlet
3/4" FPT
Bin Drain Outlet
3/4" FPT
Minimum 3/8"
Nominal ID
Hard Pipe or
Equivalent

Ice
Storage
Bin

Icemaker
Condensation
Drain Outlet
3/8" OD Hard Tube
Vent Tube

Be sure there is sufficient
extra water supply line anddrain line for the applianceto be pulled out for service.
Separate piping toapproved drain. Leavea 5-cm vertical air gap
between the end of eachpipe and the drain.

5-cm air gap
Minimum 3/4" Nominal ID
Hard Pipe or EquivalentFig. 6

Water-Cooled Models

Model Shown:
KM-470AWJ/ Connection to an Open Drain System
KM-470AWJ-S

14

Floor

Drain

ENGLISHb) Connection to a Closed Loop System
Condenser Water Minimum Condenser
Supply Inlet
Water Supply Line Size
1/2" Female Pipe 3/8" Nominal ID Copper
Thread (FPT)
Water Tubing or Equivalent

Condenser
Return Outlet
1/2" Female PipeThread (FPT)

Minimum Condenser
Return Line Size
3/8" Nominal ID Copper
Water Tubing or Equivalent• Shut-off valves and drain valves must be installed at both the condenser water supply inlet
and condenser return outlet.
• Minimum water flow to the condenser is 15 LPM.
• The pressure differential between the condenser water supply inlet and condenser returnoutlet must be no less than 0.07MPa（0.7bar）.
• When using a glycol blend, the solution mixture should be less than 30% glycol.
• In order to maintain the proper high side pressure, the condenser water supply inlet
temperature should not drop below 7°C and the condenser return outlet temperature must
be in the 40°C to 46°C range. Once the icemaker installation is complete, confirm thecondenser return outlet temperature 5 minutes after a freeze cycle starts. If the condenser
return outlet temperature is not in the proper range, use a flat blade screwdriver to rotate
the adjustment screw on the water‑regulating valve until the temperature is in the proper
range (rotate counterclockwise to raise temperature or clockwise to lower temperature).

Minimum 3/8" Nominal ID Copper
Water Tubing or Equivalent
Icemaker Water
Supply Inlet
1/2" FPT

Icemaker

Shut-Off Valve

Condenser Water
Supply Inlet
1/2" FPT
Condenser
Return Outlet
1/2" FPT
Vent Tube

Be sure there is sufficient
extra water supply line anddrain line for the applianceto be pulled out for service.

Icemaker
Drain Outlet
3/4" FPT
Icemaker
Condensation
Drain Outlet
3/8" OD Hard
Tube

Drain Valve

Ice
Storage
Bin

Bin Drain Outlet
3/4" FPT
Vent Tube

Fig. 7

Model Shown:
KM-470AWJ/
KM-470AWJ-S

Separate piping toapproved drain. Leavea 5-cm vertical air gap
between the end of eachpipe and the drain.

5-cm air gap
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent

Water-Cooled Models
Connection to a Closed Loop System

15

Floor DrainENGLISH
G. Installation of Remote Condenser UnitWARNING• Installation of remote condenser unit must be performed by properly trained andEPA-certified service personnel.
• The remote condenser unit must be installed in accordance with applicablenational, state, and local codes and regulations.
• Failure to install the remote condenser unit within these guidelines may adversely
affect safety, performance, component life, and warranty coverage.
• Power supply and ground wire to the remote condenser unit are supplied from theicemaker. For details, see section "II.G.6. Electrical Connection."
1. Location

NOTICE• The remote condenser unit is intended for outdoor use. Normal operating ambient
temperature must be within -29°C to +50°C. Operation of the remote condenser
unit, for extended periods, outside of this normal temperature range may affectappliance performance.
• The maximum line length for the standard line sizes and refrigerant charge is 20
m. With larger line sizes and/or additional refrigerant, the maximum line length is
30.5 m.
• The maximum vertical distance between the remote condenser unit and theicemaker is 10 m above or 3 m below the icemaker. These distances aremeasured fitting to fitting. See Fig. 8.
The remote condenser unit must be positioned in a permanent site under the following
guidelines:• A firm and flat site.
• A dry and well ventilated area with 61 cm clearance at front and rear for proper air
circulation and ease of maintenance and/or service should they be required. See Fig. 9.
Icemaker

RemoteCondenser
Unit
Max.
10 m
IcemakerMin. 61 cm Clearance

Max.
3m

Air

Air

Service Loop

RemoteCondenser
Unit

Service Loop

Fig. 816

Fig. 9ENGLISH
2. Checks Before Installation
1) Remove the shipping carton, tape, and packing material.
2) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blades move freely.
3. Setup1) Assemble 2 sets of legs using the legs, bolts, andnuts provided. See Fig. 10.
2) Position 1 of the plates provided between a set oflegs and the remote condenser unit, then secure
the legs to the remote condenser unit with thebolts and nuts provided. Repeat on the other sidewith the remaining set of legs.
3) The bottom of each leg has a mounting hole.
Secure the legs to the permanent site with 4 bolts(not included).

Nut

Plate
Nut
Leg

Bolt with Split
Lock Washer and
Flat Washer

Fig. 10

4. Line Set Exceeding 20 m

CAUTION
The icemaker, line set, and remote condenser unit must contain the same typeof refrigerant. Mixing of refrigerants will result in improper operation and possible
damage to the refrigeration system.
The maximum line length for the standard refrigerant charge is 20 m. Should an
installation require a longer line length, additional refrigerant must be added. Add 40 gof R-404A for each meter over 20 m to a maximum of 30.5 m. Your nearest Hoshizaki
Service office is available for recommendations.
After weighing in the additional charge, mark the unit’s nameplate to show the new correct
total refrigerant charge.

17

ENGLISH
5. Line Set Installation
Precharged factory line sets, available as optional equipment from Hoshizaki arerecommended. For details, see "II.G.5.a) Factory Line Set Installation." Field fabricated line
sets are allowed. For details, see "II.G.5.b) Field Fabricated Line Set Installation."a) Factory Line Set Installation
1) Route the factory line set from the remote condenser unit to the icemaker. Leave aservice loop behind the icemaker to allow the icemaker to be pulled out for service. See
Fig. 11. Factory fabricated line sets are precharged and do not need to be evacuated. If
the line set is too long or too short, see "II.G.5.a)(1) Factory Line Set Modification."

NOTICE• Ensure that there are no traps and no kinks in the line set. The service loop is notconsidered an oil trap.
• Do not coil extra line set.
2) Connect the refrigerant lines to the appropriate male fittings on the remote condenser
unit first and then at the icemaker. Make a proper connection as follows:a. Remove the protective covers from the male fitting and female coupling.
b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire malefitting, including O‑ring, diaphragm, and threads before making the connection.
See Fig. 12. NOTICE! Do not use thread sealant on the fittings. Use POE
refrigerant oil or Parker Super O Lube only. Couplings are one-time use only.
c. Make sure the male fitting and female coupling are properly aligned, then start theconnection by hand to ensure that it is not cross threaded.
d. Place a backup wrench on the back of the female coupling, then tighten theconnection with a wrench until it is tight. At this point, the nut has covered most of thethreads on the male fitting. NOTICE! Failure to use a backup wrench may result indamage to the line set and possible refrigerant leaks.
e. Mark a reference line on the female coupling and the remote condenser unit or
icemaker panel. Using a backup wrench on the back of the female coupling, tighten
the six-sided nut of the female coupling an additional 1/6 turn. See Fig. 13.
NOTICE! Confirm connection is free of leaks.
3) If you lengthened the line set as outlined in "II.G.5.a)(1) Factory Line Set Modification"and it exceeds 20 m, see "II.G.4. Line Set Exceeding 20 m " for proper charging of theappliance.

18

ENGLISH(1) Factory Line Set Modification
1) Recover the line set charge through the Schrader access ports on the Parker quickconnect couplings and store it in an approved container. Do not discharge therefrigerant into the atmosphere. Remove the extra line set length or add extra tubing.
When adding extra tubing, insulate the additional copper tubes separately.
2) Use an electronic leak detector or soap bubbles to check for leaks. Add a traceof refrigerant to the lines through the Schrader access ports on the Parker quickconnect couplings (if using an electronic leak detector), and then raise the pressureusing nitrogen gas (0.97MPa). WARNING! Do not use R-404A as a mixture withpressurized air for leak testing.
3) Evacuate through the Schrader access ports on the Parker quick connect couplingsand charge with R-404A refrigerant vapor to a pressure of 0.1 to 0.2 MPa. Go to step 2
in "II.G.5.a) Factory Line Set Installation."b) Field Fabricated Line Set Installation
1) Route the copper tube liquid line and copper tube discharge line from the remotecondenser unit to the icemaker. Leave a service loop behind the icemaker to allow theicemaker to be pulled out for service. See Fig. 11.

NOTICE• Ensure that there are no traps and no kinks in the line set. The service loop is notconsidered an oil trap.
• Do not coil extra line set. Fabricate the line set to the proper length.
2) Insulate the two copper tubes separately.
3) Install Parker quick connect couplings on each end. OS-QUICK, a universal quickconnect coupling kit available as optional equipment from Hoshizaki , is recommended.
NOTICE! Before brazing, remove the Schrader valve core from the access port.
When brazing, protect the coupling by using a wet cloth to prevent the couplingfrom overheating. Do not use silver alloy or copper alloy containing arsenic.
4) Allow the coupling to cool, then replace the Schrader valve core.
5) Use an electronic leak detector or soap bubbles to check for leaks. Add a traceof refrigerant to the lines through the Schrader access ports on the Parker quickconnect couplings (if using an electronic leak detector), and then raise the pressureusing nitrogen gas (0.97 MPa). WARNING! Do not use R-404A as a mixture withpressurized air for leak testing.
6) Evacuate through the Schrader access ports on the Parker quick connect couplingsand charge with R-404A refrigerant vapor to a pressure of 0.1 to 0.2 MPa.

19

ENGLISH
7) Connect the refrigerant lines to the appropriate male fittings on the remote condenser
unit first and then at the icemaker. Make a proper connection as follows:a. Remove the protective covers from the male fitting and female coupling.
b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire malefitting, including O‑ring, diaphragm, and threads, before making the connection.
See Fig. 12. NOTICE! Do not use thread sealant on the fittings. Use POE
refrigerant oil or Parker Super O Lube only. Couplings are one-time use only.
c. Make sure the male fitting and female coupling are properly aligned, then start theconnection by hand to ensure that it is not cross threaded.
d. Place a backup wrench on the back of the female coupling, then tighten theconnection with a wrench until it is tight. At this point, the nut has covered most of thethreads on the male fitting. NOTICE! Failure to use a backup wrench may result indamage to the line set and possible refrigerant leaks.
e. Mark a reference line on the female coupling and the remote condenser unit or
icemaker panel. Using a backup wrench on the back of the female coupling, tighten
the six-sided nut of the female coupling an additional 1/6 turn. See Fig. 13.
NOTICE! Confirm connection is free of leaks.
8) If the line set exceeds 20 m , see "II.G.4. Line Set Exceeding 20 m " for proper charging
of the appliance.

Remote Condenser Unit

Icemaker

Male Fitting
Female Coupling

Fig. 11Discharge Line (Insulated)See"II.G.4 Line Set Exceeding 20
m " for details.
Liquid Line (Insulated)
See "II.G.4 Line Set
Exceeding 20 m " for details.
Service Loop
DO NOT USE
THREAD SEALANT

Male Fitting
Brush

Fig. 12

Threads

Diaphragm Apply POE Oil or
Parker Super O Lube
to Entire Male Fitting
O-RingReferenceLine

Fig. 13

WrenchAfter Tight, Tighten an
Additional 1/6 Turn

BackupWrench1/6
Turn

BackupWrench

20

WrenchENGLISH
6. Electrical Connection

WARNING• Electrical connection must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could result in death,
electric shock, serious injury, fire, or damage.
• To reduce the risk of electric shock, make all remote condenser unit connections
before connecting the icemaker power supply.
• THE REMOTE CONDENSER UNIT MUST BE GROUNDED. Install a ground wirefrom the icemaker fan motor junction box to the remote condenser unit junction
box. Use wire of an appropriate gage and outdoor rating. Failure to properly
ground the remote condenser unit could result in death or serious injury.
• Install line and neutral wires from the fan motor leads in the icemaker fan motor
junction box to the leads in the remote condenser unit junction box. Use wire of an
appropriate gage and outdoor rating.
• Do not connect the fan motor leads in the icemaker to incoming power source. Do
not connect the fan motor leads in the icemaker together. Do not allow the leads tocontact the junction box walls.
• Do not connect the remote condenser unit to an external power source.

NOTICEOn remote models, the appliance must have power for a minimum of 4 hours prior
to startup to prevent compressor damage.
• Usually an electrical permit and services of a licensed electrician are required.
• The opening for the power supply connection is 7/8"（22mm）DIA to fit a 1/2" trade size
conduit.
1) Remove the remote condenser unit louver panel. See Fig. 14.
2) Remove the icemaker fan motor junction box cover. Remove the remote condenser unit
junction box cover.

Icemaker

Remote Condenser Unit
ScrewsLouver Panel
Fan Motor Junction
Box CoverFig. 14Junction Box Cover

Screw

21

ENGLISH
3) Install a ground wire from the icemaker fan motor junction box to the remote condenser
unit junction box. Use wire of an appropriate gage and outdoor rating.
4) Install line and neutral wires from the fan motor leads in the icemaker fan motor junction
box to the leads in the remote condenser unit junction box. Use wire of an appropriate
gage and outdoor rating.
5) Replace the junction box covers and the louver panel in their correct positions.
7. Stacking Remote Condenser Unit
1) Install the lower remote condenser unit as described earlier in this section.
2) Place the upper remote condenser unit on top of the lower remote condenser unit. See
Fig. 15.
3) Secure the upper remote condenser unit to the lower remote condenser unit with the
4 screws provided.
4) Install refrigerant lines and make electrical connection as described earlier in thissection.

Upper Remote
Condenser Unit
ScrewsScrewsLower Remote
Condenser Unit

Fig. 15

22

ENGLISH
H. Final Checklist
WARNINGCHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after installation. Make sure that none have fallen into thedispenser unit/ice storage bin.
1) Is the icemaker level?
2) Is the icemaker in a site where the ambient temperature is within 7°C to 38°C and thewater temperature within 7°C to 32°C all year around?
3) For KM-470A_J/KM-470A_J-S model, is there at least 30 cm clearance at rear, sides,
and top of the icemaker.
4) Have the shipping carton, tape, and packing material been removed from theappliance? Is the cube guide in the correct position? Are the separators between theevaporator banks properly attached to their holding clips?
5) Have all electrical and water connections been made? Do electrical and water
connections meet applicable national, state, and local code and regulation
requirements?
6) Has the power supply voltage been checked or tested against the nameplate rating?
Has a proper ground been installed to the icemaker?
7) Are the water supply and drain lines sized as specified? Are the water supply
line shut‑off valve(s) and drain valve(s) installed? Has the water supply pressure
been checked to ensure a minimum of 0.07MPa(0.7bar) and a maximum of
0.78MPa(7.8bar)?
8) Is the compressor snug on all mounting pads? Have the refrigerant lines been checked
to make sure they do not rub or touch other lines or surfaces? Have the fan blades
been checked to make sure they turn freely?
9) Are all components, fasteners, and thumbscrews securely in place?
10) Has the end user been given the instruction manual, and instructed on how to operate
the appliance and the importance of the recommended periodic maintenance?
11) Has the end user been given the contact information of an authorized service agent?

23

ENGLISH
I. Startup
WARNINGAll parts are factory-adjusted. Improper adjustments may adversely affect safety,
performance, component life, and warranty coverage.

NOTICE• If the icemaker is turned off, wait for at least 3 minutes before restarting theicemaker to prevent damage to the compressor.
• To prevent damage to the water pump seal, do not leave the control switch in the"WASH" position for extended periods when the water tank is empty.
• At startup, confirm that all internal and external connections are free of leaks.
1) Open the water supply line shut-off valve(s).
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 a total of 10 minutes.
6) Turn off the power supply, then remove the front panel and the insulation panel.
7) Slide the cube guide to the right, then remove the rubber cap and sleeve covering
the overflow pipe. See Fig. 16. Unscrew the overflow pipe. After the water tank has
drained, reconnect the overflow pipe. Replace the rubber hose, overflow cap, and cube
guide in their correct positions. NOTICE! Make sure the O-ring is attached to thebottom of the overflow pipe and be careful not to cross thread the overflow pipe.
8) Replace the insulation panel and the front panel in their correct positions.
9) Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly
after cleaning.
10) Turn on the power supply to start the automatic icemaking process.
11) When the icemaker is running, hold an ice cube incontact with the bulb. The icemaker should stop within
10 seconds. Adjustment may be needed, particularly at Cube Guide
higher altitude locations.

Rubber Hose

Overflow Cap

Overflow Pipe
O-RingFig. 16

24

ENGLISH
III. Maintenance

The appliance must be maintained in accordance with the instruction manual andlabels provided. Consult with your local Hoshizaki Certified Service Representative aboutmaintenance service.

WARNING• Only qualified service technicians should service the appliance.
• To reduce the risk of electric shock, do not touch the control switch with damp
hands.
• 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.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after any maintenance is done to the appliance. Make sure thatnone have fallen into the dispenser unit/ice storage bin.

A. Maintenance Schedule

The maintenance schedule below is a guideline. More frequent maintenance may
be required depending on water quality, the appliance's environment, and local
sanitation regulations.
Maintenance Schedule

Frequency Area

Task

Daily

Scoop

Clean the ice scoop using a neutral cleaner. Rinse thoroughly after cleaning.

Bi-Weekly

Air Filters

Inspect. Wash with warm water and neutral cleaner if dirty.

Monthly

External Water
Filters

Check for proper pressure and change if necessary.

Icemaker Exterior Wipe down with a clean, soft cloth. Use a damp cloth containing a neutral
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rustcolored spots) using a non-abrasive cleanser.
Underside of
Wipe down with a clean cloth and warm water.
Icemaker and Top
Kits; Bin DoorYearlyIcemaker andClean and sanitize per the cleaning and sanitizing instructions provided in
Dispenser Unit/Ice this manual. See "III.B. Cleaning and Sanitizing Instructions."
Storage Bin
Water Supply Inlet Close the icemaker water supply line shut‑off valve and drain the water
system. Clean the water supply inlet screen.
Condenser

Inspect. Clean if necessary by using a brush or vacuum cleaner. Morefrequent cleaning may be required depending on location.

Water Hoses

Inspect the water hoses and clean/replace if necessary.

25

ENGLISH
B. Cleaning and Sanitizing Instructions

The icemaker must be cleaned and sanitized at least once a year. More frequentcleaning and sanitizing may be required in some water conditions.

WARNING• To prevent injury to individuals and damage to the icemaker, do not use ammonia
type cleaners.
• Carefully follow any instructions provided with the bottles of cleaning and sanitizing
solution.
• Always wear liquid-proof gloves and goggles to prevent the cleaning and sanitizing
solutions from coming into contact with skin or eyes.
• Do not leave the icemaker unattended when panels are off.

NOTICETo prevent damage to the water pump seal, do not leave the control switch in the"WASH" position for extended periods when the water tank is empty.

IMPORTANT• The cleaning valve is opened during cleaning and sanitizing to allow solution flow
to the inside of the evaporator. It should be closed for all icemaking operation. The
compressor will not operate unless this valve is completely closed.
• To close the cleaning valve, the valve handle should be at a right angle to the valve
body. To open the cleaning valve, the valve handle should be parallel to the valve
body.

CLOSED
Icemaking Operation

OPEN
Cleaning and Sanitizing Operation(allows solution flow to the inside of the evaporator)

Preparation
1) Remove the front panel, then move the control switch to the "OFF" position.
After 3 min., move the control switch to the "ICE" position, then replace the front panel.
2) After 3 min., remove the front panel, then move the control switch to the "OFF" position.
3) Remove all ice from the ice storage bin. WARNING! If on a dispenser unit, turn off
the dispenser unit power supply after dispensing the ice.

26

ENGLISH
Cleaning
4) Remove the front insulation panel, then slide the cube guide to the right. Remove therubber cap and sleeve covering the overflow pipe. See Fig. 6. Unscrew the overflow
pipe. After the water tank has drained, reconnect the overflow pipe. Replace the rubber
hose, overflow cap, cube guide, and front insulation panel. NOTICE! Make sure theO-ring is attached to the bottom of the overflow pipe and be careful not to crossthread the overflow pipe.
5) To fill the water tank, move the control switch to the "ICE" position, then replace thefront panel. After 3.5 min., remove the front panel, then move the control switch to the"OFF" position.
6) Remove the front insulation panel, then pour 887 ml of Hoshizaki "Scale Away" or theother recomended Hoshizaki sanitizer as derected into the water tank. Replace thefront insulation panel. Turn the cleaning valve to the left until completely vertical (open).
7) NOTICE! To avoid excessive foaming, wait 1 min. before proceeding.
After 1 min., move the control switch to the "WASH" position, then replace the front
panel.
8) After 30 min., remove the front panel, then move the control switch to the "OFF"position.
9) Remove the front insulation panel, then slide the cube guide to the right. Remove therubber hose and overflow cap covering the overflow pipe. Unscrew the overflow pipe.
After the water tank has drained, reconnect the overflow pipe. Replace the rubber
hose, overflow cap, cube guide, and front insulation panel.
10) In bad or severe water conditions, turn off the power supply, then remove, clean(cleaning solution = 5 oz. Hoshizaki "Scale Away" per gallon of warm water), rinse,
and replace t he cube guides, float switch, water supply tubes, spray tubes, and sprayguides; turn on the power supply when complete. Otherwise, continue to step 11..
Cleaning Rinse
11) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position, then replace the front panel. After 3.5 min., remove thefront panel, then move the control switch to the "OFF" position. Note: The icemaker will
not operate unless the cleaning valve is completely closed.
12) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove thefront panel, then move the control switch to the "OFF" position.
13) Remove the front insulation panel, then slide the cube guide to the right. Remove therubber hose and overflow cap covering the overflow pipe. Unscrew the overflow pipe. Afterthe water tank has drained, reconnect the overflow pipe. Replace the rubber hose, overflow
cap, cube guide, and front insulation panel.

27

ENGLISH
Sanitizing14) To fill the water tank, turn the cleaning valve to the right until completely horizontal(closed). Move the control switch to the "ICE" position, then replace the front panel.
After 3.5 min., remove the front panel, then move the control switch to the "OFF"position.
15) Remove the front insulation panel, then pour 50 ml of an 8.25% sodium hypochlorite
solution (chlorine bleach) into the water tank. Replace the front insulation panel.
Turn the cleaning valve to the left until completely vertical (open). IMPORTANT! Useregular bleach with no additives. Using a bleach with additives causes excessive
foaming during sanitizing, reducing the effectiveness of sanitizing.
16) NOTICE! To avoid excessive foaming, wait 1 min. before proceeding.
After 1 min., move the control switch to the "WASH" position, then replace the front
panel.
17) After 45 min., remove the front panel, then move the control switch to the "OFF"position.
18) Remove the front insulation panel, then slide the cube guide to the right. Remove therubber hose and overflow cap covering the overflow pipe. Unscrew the overflow pipe.
After the water tank has drained, reconnect the overflow pipe. Replace the rubber
hose, overflow cap, cube guide, and front insulation panel.
Sanitizing Rinse 1
19) Turn the cleaning valve to the right until completely horizontal (closed). Move thecontrol switch to the "ICE" position, then replace the front panel. After 3.5 min., remove
the front panel, then move the control switch to the "OFF" position.
20) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove thefront panel, then move the control switch to the "OFF" position.
21) Remove the front insulation panel, then slide the cube guide to the right. Remove therubber cap and sleeve covering the overflow pipe. Unscrew the overflow pipe. After thewater tank has drained, reconnect the overflow pipe. Replace the rubber hose, overflow
cap, cube guide, and front insulation panel.
Sanitizing Rinse 2
22) Turn the cleaning valve to the right until completely horizontal (closed). Move thecontrol switch to the "ICE" position, then replace the front panel. After 3.5 min., remove
the front panel, then move the control switch to the "OFF" position.
23) Turn the cleaning valve to the left until completely vertical (open). Move the control switch tothe "WASH" position, then replace the front panel. After 5 min., remove the front panel, thenmove the control switch to the "OFF" position.
24) Remove the front insulation panel, then slide the cube guide to the right. Remove the rubber
hose and overflow cap covering the overflow pipe. Unscrew the overflow pipe. After thewater tank has drained, reconnect the overflow pipe. Replace the rubber hose, overflow
cap, cube guide, and front insulation panel.

28

ENGLISH
Sanitizing Rinse 3
25) Turn the cleaning valve to the right until completely horizontal (closed). Move thecontrol switch to the "ICE" position, then replace the front panel. After 3.5 min., remove
the front panel, then move the control switch to the "OFF" position.
26) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove thefront panel, then move the control switch to the "OFF" position.
27) Remove the front insulation panel, then slide the cube guide to the right. Remove therubber hose and overflow cap covering the overflow pipe. Unscrew the overflow pipe.
After the water tank has drained, reconnect the overflow pipe. Replace the rubber
hose, overflow cap, cube guide, and front insulation panel. NOTICE! Be sure theO-ring is attached to the bottom of the overflow pipe and be careful not to crossthread the overflow pipe.
28) Clean the ice storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning.
29) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position. Note: If on a dispenser unit, turn on the dispenser unit power
supply.
30) Replace all panels in their correct positions.

29

ENGLISH
IV. Preparing the Appliance for Periods of Non-Use
NOTICE• When storing the icemaker for an extended time or in sub-freezing temperatures,
follow the instructions below to prevent damage.
• To prevent damage to the water pump seal, do not leave the control switch in the"WASH" position for extended periods when the water tank is empty.
When the icemaker is not used for two or three days under normal conditions, it issufficient to move the control switch to the "OFF" position. When storing the icemaker foran extended time or in sub-freezing temperatures, follow the instructions below.
1. Remove the water from the icemaker water supply line:
1) Turn off the power supply, then remove the front panel.
2) Move the control switch to the "OFF" position.
3) Close the icemaker water supply line shut-off valve, then open the icemaker watersupply line drain valve.
4) Allow the line to drain by gravity.
5) Attach a compressed air or carbon dioxide supply to the icemaker water supply line
drain valve.
6) Move the control switch to the "ICE" position.
7) Replace the front panel in its correct position, then turn on the power supply.
8) Blow the icemaker water supply line out using the compressed air or carbon dioxide
supply.
9) Close the icemaker water supply line drain valve.
2. Drain the water tank:1) Turn off the power supply, then remove the front panel. Move the control switch to the"OFF" position.
2) Remove the insulation panel.
3) Slide the cube guide to the right, then remove the rubber hose and overflow cap
covering the overflow pipe. See Fig. 16. Unscrew the overflow pipe. After the watertank has drained, reconnect the overflow pipe. Replace the rubber hose, overflow cap,and cube guide in their correct positions. NOTICE! Make sure the O-ring is attachedto the bottom of the overflow pipe and be careful not to cross thread the overflow
pipe.
4) Replace the insulation panel in its correct position.
5) Remove all ice from the storage bin. Clean the storage bin using a neutral cleaner.
Rinse thoroughly after cleaning.
6) Replace the front panel in its correct position.

30

ENGLISH
V. WARRANTY
Hoshizaki warrants to the original owner/user that all Hoshizaki branded products shall befree of defects in material and/or workmanship for the duration of the “warranty period”. The
warranty shall be effective for two years from the date of installation.
Hoshizaki’s liability under the terms of the warranty are limited and shall exclude routine
servicing, cleaning, essential maintenance and/or repairs occasioned by misuse andinstallations not in accordance with Hoshizaki guidelines.
Warranty repairs should be completed by an approved Hoshizaki dealer or service agency
using genuine Hoshizaki components.
To obtain full details of your warranty and approved service agency, please contact your dealer/
supplier, or the nearest Hoshizaki Service office:VI. DISPOSAL
Comply with local regulations regarding disposal of this appliance and its refrigerant gas.
Before you scrap the appliance, take off the door to prevent children trapped.
Correct disposal of this product:
This marking indicates that this product should not be disposed with otherhousehold wastes throughout the EU. To prevent possible harm to theenvironment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material
resources. To return your used device, use the return and collection systems
or contact the retailer where the product was purchased. They can take thisproduct for environmental safe recycling.
WARNING
The insulation foaming agent used for the unit body contains flammablegas cyclopentane. With this in mind, dispose of the product properly.

31