Models
KM-81BAK
KM-116BAK
KM-161BAK, BWK
Self-Contained Crescent Cuber
Instruction Manual
Issued: 5-7-2025
hoshizakiamerica.com
2
WARNING
Only qualied service technicians should install and service the appliance. To obtain
the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizakiamerica.com. No installation, operation, or
maintenance should be undertaken until the technician has thoroughly read this
Instruction Manual. No service should be undertaken until the technician has
thoroughly read the service manual available at www.hoshizakiamerica.com.
Likewise, the owner/manager should not proceed to operate the appliance until the
installer has instructed them on its proper operation. Failure to install, operate, and
maintain the appliance in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage and may result in costly water
damage. Proper installation is the responsibility of the installer. Product failure or
property damage due to improper installation is not covered under warranty.
Hoshizaki provides this manual primarily to assist qualied service technicians in the
installation, operation, maintenance, and service of the appliance.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, send an e-mail message, or write to the Hoshizaki Technical
Support Department for assistance.
Phone: 1-810-233-1940; (770) 487-2331
E-mail: tech-suppor[email protected]
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.
3
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 ................................................................................................. 4
I. Specications ...................................................................................................................... 9
A. Construction .................................................................................................................. 9
B. Electrical and Refrigerant Data ................................................................................... 10
C. Dimensions/Connections .............................................................................................11
1. KM-81BAK ..............................................................................................................11
2. KM-116BAK ........................................................................................................... 12
3. KM-161BAK ........................................................................................................... 13
4. KM-161BWK .......................................................................................................... 14
II. Installation Instructions .................................................................................................... 15
A. Location ...................................................................................................................... 15
B. Checks Before Installation ........................................................................................... 17
C. How to Remove Panels ............................................................................................... 18
D. Setup ........................................................................................................................... 19
E. Electrical Connection .................................................................................................. 20
F. Water Supply and Drain Connections ........................................................................ 21
G. Final Checklist ............................................................................................................ 25
1. Pre-Startup ............................................................................................................. 25
2. Post-Startup ........................................................................................................... 25
III. Operating Instructions ..................................................................................................... 26
A. Important Notes About Usage ..................................................................................... 26
B. Startup and Bin Control Check .................................................................................... 27
IV. Maintenance ................................................................................................................... 29
A. Maintenance Schedule ................................................................................................ 29
B. Cleaning and Sanitizing Instructions ........................................................................... 30
V. Preparing the Appliance for Periods of Non-Use ............................................................. 33
VI. Decommissioning and Disposal ..................................................................................... 35
4
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.
R-290 Class A3 Flammable Refrigerant Used
DANGER
Indicates a hazardous situation that, if not avoided, will result in
death or serious injury.
WARNING
Indicates a hazardous situation that, if not avoided, could result in
death or serious injury.
NOTICE
Indicates a situation that, if not avoided, could result in damage to
the appliance or property.
IMPORTANT
Indicates important information about the use and care of the
appliance.
DANGER
• Servicing shall be done by trained service
personnel with certied competence
in handling ammable refrigerants to
minimize the risk of possible ignition due
to incorrect parts or improper service.
• Component parts shall be replaced with
like components. So as to minimize the
risk of possible ignition due to incorrect
parts.
• Dispose of properly in accordance with
federal or local regulations.
• Do not pierce or burn.
• Be aware that refrigerants may not contain
an odor.
• Do not damage the refrigeration circuit.
• See nameplate for R-290 refrigerant
charge:
• If greater than 114 g (4 oz.), do not install
in public corridor or lobby.
• If greater than 152 g (5.3 oz.), do not
install within 6 m (20 ft) of open ame.
• The appliance shall be stored in a room
without continuously operating ignition
sources (for example: open ames, an
operating gas appliance, or an operating
electric heater).
Risk of Fire or Explosion
Flammable Refrigerant Used
• Only qualied service technicians should
install and service the appliance.
• No installation, operation, or maintenance
should be undertaken until the technician
has thoroughly read this Instruction
Manual. All safety precautions must be
followed.
• No service should be undertaken until the
technician has thoroughly read the Service
Manual available at
www.hoshizakiamerica.com. All safety
precautions must be followed.
• This appliance to be installed in
accordance with the Safety Standard for
Refrigeration Systems ANSI/ASHRAE 15.
• Follow handling instructions carefully in
compliance with national regulations.
• Do not use mechanical devices or other
means to accelerate the defrosting
process or to clean, other than those
recommended by the manufacturer.
• Do not puncture refrigerant tubing. Risk
of re or explosion due to puncture
of refrigerant tubing; follow handling
instructions carefully.
5
DANGER continued
• Do not place any potential ignition sources
in or near the appliance.
• Keep clear of obstruction all ventilation
openings in the appliance enclosure or in
the structure for building-in.
• No potential sources of ignition are to be
used in the searching for or detection of
refrigerant leaks.
• Do not use electrical appliances inside
the appliance unless they are of the type
recommended by the manufacturer.
• Do not store explosive substances such as
aerosol cans with a ammable propellant
in this appliance.
• Check that cabling will not be subject
to wear, corrosion, excessive pressure,
vibration, sharp edges, or any other
adverse environmental effects. The check
shall also take into account the effects of
aging or continual vibration from sources
such as compressors or fans.
• Ensure that the area is in the open or that
it is adequately ventilated before breaking
into the system or conducting any hot
work. A degree of ventilation shall continue
during the period that the work is carried
out. The ventilation should safely disperse
any released refrigerant and preferably
expel it externally into the atmosphere.
Risque D’Incendie ou D’Explosion
Fluide Frigorigène Inammable Utilisé
• Seuls des techniciens de service qualiés
doivent installer et entretenir l’appareil.
• Aucune installation, opération ou
maintenance ne doit être entreprise avant
que le technicien n’ait lu attentivement
ce manuel d’instructions. Toutes les
précautions de sécurité doivent être
suivies.
• Aucune opération d’entretien ne doit être
entreprise avant que le technicien n’ait
lu attentivement le manuel d’entretien
disponible sur le site
www.hoshizakiamerica.com. Toutes les
précautions de sécurité doivent être
suivies.
• Cet appareil doit être installé
conformément à la norme de sécurité pour
les systèmes de réfrigération
ANSI/ASHRAE 15.
• Suivez attentivement les instructions
de manutention conformément aux
réglements nationaux.
• Ne pas utiliser de dispositifs mécaniques
ou d’autres moyens pour accélérer le
processus de dégivrage ou pour nettoyer,
autres que ceux recommandés par le
fabricant.
• Ne pas perforer la conduite de uide
frigorigène. Risque d’incendie ou
d’explosion en cas de perforation
d’une canalisation de uide frigorigène;
suivez attentivement les instructions de
manutention.
• L’entretien doit être effectué par du
personnel formé et certié pour la
manipulation de réfrigérants inammables
an de réduire au minimum le risque
d’inammation dû à des pièces incorrectes
ou à un entretien inadéquat.
6
DANGER Continué
• Les pièces doivent être remplacées
par des pièces similaires, de manière
à réduire au minimum le risque
d’inammation dû à des pièces
incorrectes.
• Mettre au rebut conformément aux
réglements fédéraux ou locaux.
• Ne pas percer ou brûler.
• Attention, les uides frigorigénes peuvent
ne pas dégager d’odeur.
• Ne pas endommager les composants du
circuit de réfrigération.
• Voir plaque signalétique pour la charge de
réfrigérant R-290:
• Si elle est supérieure à 114 g (4 oz.), ne
pas l’installer dans un couloir public ou
un hall d’entrée.
• Si elle est supérieure à 152 g (5,3 oz.),
ne pas l’installer à moins de 6 m (20 pi)
d’une amme nue.
• L’appareil doit être entreposé dans un
local ne contenant pas de sources
d’inammation permanentes (ammes
nues, appareil à gaz ou dispositif de
chauffage électrique en fonctionnement,
par exemple).
• Ne placer aucune source d’inammation
potentielle à l’intérieur ou à proximité de
l’appareil.
• Ne pas obstruer les ouvertures de
ventilation dans l’enceinte de l’appareil ou
dans la structure d’encastrement.
• Aucune source potentielle d’inammation
ne doit être utilisée pour rechercher ou
détecter des fuites de réfrigérant.
• Ne pas utiliser d’appareils électriques à
l’intérieur de l’appareil, sauf s’ils sont du
type recommandé par le fabricant.
• Ne pas entreposer dans cet appareil
des substances explosives telles que
des bombes aérosols contenant un gaz
propulseur inammable.
• Vérier que le câblage ne sera pas soumis
à l’usure, à la corrosion, à une pression
excessive, à des vibrations, à des arêtes
vives ou à tout autre effet environnemental
négatif. Le contrôle doit également prendre
en compte les effets du vieillissement ou
des vibrations continues provenant de
sources telles que les compresseurs ou
les ventilateurs.
• S’assurer que la zone est à l’air libre ou
qu’elle est correctement ventilée avant de
pénétrer dans le système ou d’effectuer
un travail à chaud. Une certaine ventilation
doit être maintenue pendant la durée des
travaux. La ventilation doit permettre de
disperser en toute sécurité tout réfrigérant
libéré et, de préférence, de l’expulser dans
l’atmosphère.
7
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, and maintain 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 re, follow
basic precautions including the
following:
• This appliance is not intended for use
above 2,000 m (6,561 ft).
Installation above 2,000 m (6,561 ft) may
adversely affect safety, performance, and
component life.
• Wear appropriate personal protective
equipment (PPE) when servicing the
appliance.
• The appliance must be installed in
accordance with applicable national, state,
and local codes and regulations.
• The appliance requires an independent
power supply of proper capacity. See the
nameplate for electrical specications.
Failure to use an independent power
supply of proper capacity can result in a
tripped breaker, blown fuse, damage to
existing wiring, or component failure.
This could lead to heat generation or re.
• THE APPLIANCE MUST BE
GROUNDED. The appliance is equipped
with a NEMA5-15 three-prong grounding
plug to reduce the risk of potential
shock hazards. It must be plugged into a
properly grounded, independent 3-prong
wall outlet. If the outlet is a 2-prong outlet,
it is your personal responsibility to have
a qualied electrician replace it with a
properly grounded, independent 3-prong
wall outlet. Do not remove the ground
prong from the power cord and do not use
an adapter plug. Failure to follow these
instructions may result in death, electric
shock, or re.
• To reduce the risk of electric shock, do not
touch the control switch or plug with damp
hands.
• To reduce the risk of electric shock, make
sure the control switch is in the "OFF"
position before plugging in or unplugging
the appliance.
• Unplug the appliance before servicing.
• Do not use an appliance with a damaged
power cord. The power cord should not be
altered, jerked, bundled, weighed down,
pinched, or tangled. Such actions could
result in electric shock or re. To unplug
the appliance, be sure to pull the plug, not
the cord, and do not jerk the cord.
• Do not use an extension cord.
• If the supply cord is damaged, it must
be replaced by the manufacturer, its
service agent, or similarly qualied
persons in order to avoid a hazard. Upon
replacement, the GREEN ground wire in
the power cord must be connected to the
designated grounding screw.
• Do not make any alterations to the
appliance. Alterations could result in
electric shock, injury, re, or damage to
the appliance.
• Appliance is heavy. Use care when lifting
or positioning. Work in pairs when needed
to prevent injury or damage.
8
NOTICE
• To help ensure that the ice storage bin
drain remains clear, follow the instructions
in "IV.B.Cleaning and Sanitizing
Instructions" as often as necessary for
conditions. If the ice storage bin drain
becomes clogged, water could build up
in the bin and overow, leading to costly
water damage.
• Do not leave the appliance on during
extended periods of non-use, extended
absences, or in sub-freezing temperatures.
To properly prepare the appliance for
these occasions, follow the instructions in
"V. Preparing the Appliance for Periods of
Non-Use."
• If water collects in the bin and will not
drain, turn off the icemaker and close the
water supply line shut-off valve. Call for
service.
• If water seeps from the base of the
appliance, turn off the appliance and close
the water supply line shut-off valve.
Call for service. Failure to do so could lead
to costly water damage.
• Do not place objects on top of the
appliance.
• The ice storage bin is for ice use only.
Do not store anything else in the ice
storage bin.
• Protect the oor when moving the
appliance to prevent damage to the oor.
• Do not allow the appliance to bear any
outside weight.
WARNING continued
• 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 the
appliance by a person responsible for their
safety.
• Do not splash, pour, or spray water
directly onto or into the appliance. This
might cause short circuit, electric shock,
corrosion, or failure.
• 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.
• Be careful not to pinch ngers when
opening and closing the door. Be careful
when opening and closing the door when
children are in the area.
• Do not use combustible spray or place
volatile or ammable substances in or
near the appliance. They might catch re.
• Keep the area around the appliance clean.
Dirt, dust, or insects in the appliance could
cause harm to individuals or damage to
the appliance.
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
oor drain.
• Install the icemaker in a location that stays
above freezing. Normal operating ambient
temperature must be within 45°F to 100°F
(7°C to 38°C).
9
I. Specications
A. Construction
Top Panel
Front Panel
Control Switch
Louver
Bin Control
Door
Power Cord
10
B. Electrical and Refrigerant Data
The nameplate provides electrical and refrigerant data and Year of Manufacture (YOM).
The nameplate is located inside the ice storage bin. For certication marks, see the
nameplate.
We reserve the right to make changes in specications and design without prior notice.
Model Number KM-81BAK KM-116BAK
AC SUPPLY VOLTAGE ~115/60/1 ~115/60/1
AMPERES 8.4 3.4
DESIGN PRESSURE kPa (PSI) HI-3103 (450) LO-1448 (210) HI-3103 (450) LO-1448 (210)
REFRIGERANT g (oz.) R-290 85 (3.0) R-290 90 (3.2)
CLIMATIC CLASS 5 5
INSULATION BLOWING GAS HFO 1233zd(E) HFO 1233zd(E)
MINIMUM ROOM FLOOR AREA m² (ft² ) 4.1 (43.8) 4.3 (46.4)
HARVEST RATE ≤1,000 LB/DAY (BATCH) ≤1,000 LB/DAY (BATCH)
Model Number KM-161BAK KM-161BWK
AC SUPPLY VOLTAGE ~115/60/1 ~115/60/1
AMPERES 3.5 7.8
DESIGN PRESSURE kPa (PSI) HI-3103 (450) LO-1448 (210) HI-3103 (450) LO-1448 (210)
REFRIGERANT g (oz.) R-290 110 (3.9) R-290 xx (xx) Data Pending
CLIMATIC CLASS 5 5
INSULATION BLOWING GAS HFO 1233zd(E) HFO 1233zd(E)
MINIMUM ROOM FLOOR AREA m² (ft² ) 5.3 (56.7) xx (xx) Data Pending
HARVEST RATE ≤1,000 LB/DAY (BATCH) ≤1,000 LB/DAY (BATCH)
Note: Climatic Class 5: This appliance electrical safety tested for operation in maximum
ambient temperature of 104°F (40°C) with 40% relative humidity. However,
normal operating ambient temperature must be within 45°F to 100°F (7°C to
38°C); Normal operating water temperature must be within 45°F to 90°F (7°C to
32°C). Operation of the appliance, for extended periods, outside of these normal
tempereature ranges may affect appliance performance.
11
C. Dimensions/Connections
1. KM-81BAK
Unit: mm [inches]
NOTICE
The appliance requires no
clearance at either side. But allow
enough space at rear for water
supply and drain connections,
at least 12” (30 cm) clearance at
front, and at least 5/8” (15 mm)
clearance at top for maintenance.
12
2. KM-116BAK
Unit: mm [inches]
NOTICE
The appliance requires no
clearance at either side. But allow
enough space at rear for water
supply and drain connections,
at least 12” (30 cm) clearance at
front, and at least 5/8” (15 mm)
clearance at top for maintenance.
13
3. KM-161BAK
Unit: mm [inches]
NOTICE
The appliance requires no
clearance at either side. But allow
enough space at rear for water
supply and drain connections,
at least 12” (30 cm) clearance at
front, and at least 5/8” (15 mm)
clearance at top for maintenance.
14
4. KM-161BWK
Unit: mm [inches]
NOTICE
The appliance requires no
clearance at either side. But allow
enough space at rear for water
supply and drain connections,
at least 12” (30 cm) clearance at
front, and at least 5/8” (15 mm)
clearance at top for maintenance.
15
II. Installation Instructions
WARNING
• This appliance must be installed in accordance with applicable national, state, and
local codes and regulations.
• This appliance to be installed in accordance with the Safety Standard for
Refrigeration Systems ANSI/ASHRAE 15.
• Failure to install, operate, and maintain the appliance in accordance with this
manual 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 the ice
storage bin.
A. Location
1. General
This appliance uses an A3 ammable refrigerant.
For refrigerant charge and room oor area requirement, see the table below.
DANGER
R-290 Class A3 Flammable Refrigerant Used
Model
R-290 Refrigerant
Charge g (oz.)
Minimum Room Floor Area
(operating or storage)
Supercie Minimale du Local
(service ou stockage)
m² (ft²); m² (pi²)
KM-81BAK 85 (3.0) 4.1 (43.8)
KM-116BAK 90 (3.2) 4.3 (46.4)
KM-161BAK 110 (3.9) 5.3 (56.7)
KM-161BWK Data Pending Data Pending
≥ Area m
2
(ft
2
) (see "Minimum Room Floor Area" above)
≥ Supercie m
2
(pi
2
) (voir « Supercie Minimale du Local » ci-dessus)
16
DANGER continued
R-290 Refrigerant Charge:
• If greater than 114 g (4 oz.), do not install in public corridor or lobby.
• If greater than 152 g (5.3 oz.), do not install within 6 m (20 ft) of open ame.
R-290 De réfrigérant:
• Si elle est supérieure à 114 g (4 oz.), ne pas l’installer dans un couloir public ou un
hall d’entrée.
• Si elle est supérieure à 152 g (5,3 oz.), ne pas l’installer à moins de 6 m (20 pi)
d’une amme nue.
This appliance is not intended for use above 2,000 m (6,561 ft). Installation above
2,000 m (6,561 ft) may adversely affect safety, performance, and component life.
NOTICE
• The appliance is not intended for outdoor use. Normal operating ambient temperature
must be within 45°F to 100°F (7°C to 38°C); Normal operating water temperature
must be within 45°F to 90°F (7°C to 32°C). Operation of the appliance, for extended
periods, outside of these normal temperature ranges may affect appliance
performance.
• This appliance will not work at sub-freezing temperatures. To prevent damage to the
water supply line, drain the appliance if the air temperature is going to go below 32°F
(0°C). See "V. Preparing the Appliance for Periods of Non-Use."
• The appliance should not be located next to ovens, grills, or other high heat producing
equipment.
• The location must provide a rm foundation for the appliance.
• This appliance requires no side or top clearance. But allow enough space at rear for
water supply and drain connections and at least 15” (38 cm) clearance at front.
• The appliance must be at oor level on a nished oor even if under a cabinet.
• In areas where water damage is a concern, install in a contained area with a oor drain.
17
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.
• Remove the package containing the accessories.
• Remove the protective plastic lm from the panels. If the appliance is exposed to the
sun or to heat, remove the lm after the appliance cools.
• See the rating label on the rear panel or the nameplate inside the bin area, and check
that your voltage supplied corresponds with the voltage specied on the rating label/
nameplate.
18
Fig. 1
Top Panel
Separator
Ice Storage Bin
Door
Control Switch
Air Filter
Condenser
Louver
Top Panel Tab
(both ends)
Louver Tab
(both ends)
Rear Cover
Rear View
C. How to Remove Panels
See Fig. 1
• Louver: Remove the air lter. Lift it up and towards you.
Push down the tabs at the top on both sides using a at head screwdriver, pull towards
you slightly, and lift off.
• Top Panel: Remove the screws. Slide rearward, and lift off.
• Rear Cover: Remove the screws. Pull towards you.
19
Tapped Hole
(Leg Mounting)
Base
Adjustable Leg
D. Setup
NOTICE
• Do not place more than 33 lb. (15 kg) on the top panel.
• Do not use the frame to lift the appliance. Lift the appliance from the base.
• Handle the appliance carefully to avoid damaging the exterior.
1) Unpack the appliance, and remove all shipping cartons, tape, and packing material
before operating the unit.
2) Position the appliance in its permanent location.
3) Level the appliance in both the left-to-right and the front-to-rear directions
(when installed with or without legs). See Fig. 2.
4) If mounting at to a counter, seal the perimeter where the appliance contacts the
counter with approved caulk compound in a smooth and easily cleanable manner.
5) If installing the appliance with legs on the bottom, use the four accessory legs
adjustable from 6” (15.2 cm) to 7” (17.8 cm). Screw the legs tightly into the tapped holes
in the base. See Fig. 3.
Fig. 2
Fig. 3
20
E. 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, re, or severe damage to equipment.
• This appliance requires an independent power supply of proper capacity.
See the nameplate for electrical specications. Failure to use an independent power
supply of proper capacity can result in a tripped breaker, blown fuse, damage to
existing wiring, or component failure. This could lead to heat generation or re.
• THE APPLIANCE MUST BE GROUNDED: This appliance is equipped with a
NEMA 5-15 three-prong grounding plug to reduce the risk of potential shock
hazards. It must be plugged into a properly grounded, independent 3-prong wall
outlet. If the outlet is a 2-prong outlet, it is your personal responsibility to have a
qualied electrician replace it with a properly grounded, independent 3-prong wall
outlet. Do not remove the ground prong from the power cord and do not use an
adapter plug. Failure to follow these instructions may result in death, electric shock,
or re.
• Do not use an extension cord.
• To reduce the risk of electric shock, make sure the control switch is in the “OFF”
position before plugging in or unplugging the appliance.
• To reduce the risk of electric shock, do not touch the control switch or plug with
damp hands.
• Do not use an appliance with a damaged power cord. The power cord should not
be altered, jerked, bundled, weighed down, pinched, or tangled. Such actions could
result in electric shock or re. To unplug the appliance, be sure to pull the plug, not
the cord, and do not jerk the cord.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent, or similarly qualied persons in order to avoid a hazard. Upon replacement,
the GREEN ground wire in the power cord must be connected to the designated
grounding screw.
• Usually an electrical permit and services of a licensed electrician are required.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.
21
F. Water Supply and Drain Connections
See Figs. 4 through 6
WARNING
• Water supply and drain connections must be installed in accordance with applicable
national, state, and local regulations.
• Connect to potable water supply only. Do not connect to a hot-water supply.
NOTICE
• Normal operating water temperature must be within 45°F to 90°F (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 10 PSIG (68.9 kPa) and a maximum
of 113PSIG (779.1 kPa). If the pressure exceeds 113 PSIG (779.1 kPa), the use of a
pressure reducing valve is required.
• To prevent damage to the appliance, do not operate the appliance when the
water supply is off, or if the pressure is below 10 PSIG (68.9 kPa). Do not run the
appliance until the proper water pressure is reached.
• External lters, strainers, or softeners may be required depending on water quality.
Contact your local Hoshizaki Certied Service Representative or local Hoshizaki
distributor for recommendations.
• In areas where water damage is a concern, install in a contained area with a oor
drain.
• Water line installation to the appliance is not warranted by Hoshizaki.
• Water-hammer issues must be resolved by a qualied plumber before installing the
appliance. Water hammer can cause appliance damage that may lead to water
leakage or ooding.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• Be sure there is sufficient extra water supply line and drain line for the appliance to be
pulled out for service.
• Drain outlet is 1/2” FPT. A minimum of 1/2” nominal ID hard pipe or equivalent is
required for the drain line. Installing a smaller diameter drain line will reduce water ow
and may lead may lead to water leakage or ooding. Be sure there is sufficient extra
drain line for the unit to be pulled out for service.
• Drain line should not be piped directly to the sewer system. An air gap of a minimum of
2 vertical inches (5 cm) must be between the end of the drain pipe from the appliance
and the oor drain.
• For gravity drain installation, drain must have 1/4” fall per foot (2 cm per 1 m) on
horizontal runs to get good ow. A vented tee connection is also required for proper ow.
Extend the vent at least 12” (30 cm) above the drain outlet.
22
1. Icemaker
Icemaker Water
Supply Inlet
Minimum Icemaker
Water Supply Line Size
Icemaker Drain
Outlet
Minimum Icemaker
Drain Line Size
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID Copper
Water Tubing or Equivalent
3/4" Female Pipe
Thread (FPT)
3/4" Nominal ID Hard
Pipe or Equivalent
• A minimum of 1/4” nominal ID copper water tubing or equivalent is required for the
icemaker water supply line.
• Water supply inlet is 1/2” female pipe thread (FPT).
• A water supply line shut-off valve and drain valve must be installed.
• Water supply pressure must be a minimum of 10 PSIG (68.9 kPa) and a maximum
of 113 PSIG (779.1 kPa). If the pressure exceeds 113 PSIG (779.1 kPa), the use of a
pressure reducing valve is required.
• Ice storage bin and drip tray drain outlets are 3/4” FPT. A minimum of 3/4” nominal
ID hard pipe or equivalent is required for the ice storage bin and drip tray drain lines.
Installing a smaller diameter drain line will reduce water ow and may lead to water
leakage or ooding.
Fig. 4
KM-81BAK, KM-116BAK, KM-161BAK
2-inch (5-cm)
air gap
Drain
Floor
Icemaker Water Supply
Inlet 1/2” FPT
Icemaker Drain Outlet
3/4” FPT
Shut-o Valve
To approved
oor drain
Drain Valve
1/4” fall
per foot
Minimum 3/4” Nominal ID
Hard Pipe or Equivalent
Minimum 1/4” Nominal ID Copper
Water Tubing or Equivalent
Trap
Be sure there is sucient
extra water supply line
and drain line for the
appliance to be pulled out
for service.
Separate piping to
approved drain. Leave a
2-inch (5-cm) vertical air
gap between the end of
each pipe and the drain.
Vent Tube
23
Fig. 5
KM-161BWK
Icemaker Water Supply
Inlet 1/2” FPT
Icemaker Drain
Outlet 3/4” FPT
Condenser Drain
Outlet 1/2” FPT
Condenser Water
Supply Inlet 1/2” FPT
To approved
oor drain
1/4” fall
per foot
Shut-o Valve
Drain Valve
Minimum 1/4” Nominal ID
Copper Water Tubing or
Equivalent
Shut-o Valve
Drain Valve
Minimum 3/4” Nominal ID
Hard Pipe or Equivalent
Minimum 1/4” Nominal ID
Hard Pipe or Equivalent
Trap
Be sure there is sucient
extra water supply line
and drain line for the
appliance to be pulled out
for service.
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
Drain
Floor
Vent Tube
2. Water-Cooled Condenser
a) Connection to an Open Drain System
Condenser Water
Supply Inlet
Minimum Condenser
Water Supply Line Size
Condenser Drain
Outlet
Minimum Condenser
Drain Line Size
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID Copper
Water Tubing or Equivalent
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID Hard
Pipe or Equivalent
• A condenser water supply line shut-off valve and drain valve must be installed.
• In some areas, a back ow 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 45°F (7°C) and the condenser drain outlet
temperature must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker
installation is complete, conrm the condenser drain outlet temperature 5 minutes
after a freeze cycle starts. If the condenser drain outlet temperature is not in the
proper range, use a at blade screwdriver to rotate the adjustment screw on the
water-regulating valve until the temperature is in the proper range.
24
Fig. 6
KM-161BWK
Icemaker Water Supply
Inlet 1/2” FPT
Icemaker Drain
Outlet 3/4” FPT
Condenser Return
Outlet 1/2” FPT
Condenser Water
Supply Inlet 1/2” FPT
To approved
oor drain
1/4” fall per foot
Shut-o Valve
Drain Valve
Minimum 1/4” Nominal ID
Copper Water Tubing or
Equivalent
Shut-o Valve
Drain Valve
Minimum 3/4” Nominal ID
Hard Pipe or Equivalent
Trap
Shut-O ValveDrain Valve
Be sure there is sucient
extra water supply line
and drain line for the
appliance to be pulled out
for service.
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
Drain
Floor
Vent Tube
b) Connection to a Closed Loop System
Condenser Water
Supply Inlet
Minimum Condenser
Water Supply Line Size
Condenser
Return Outlet
Minimum Condenser
Return Line Size
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID Copper
Water Tubing or Equivalent
1/2" Female Pipe
Thread (FPT)
1/4" 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 ow to the condenser is 4 GPM.
• The pressure differential between the condenser water supply inlet and condenser
return outlet must be no less than 10 PSIG (68.9 kPa).
• 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 45°F (7°C) and the condenser drain outlet
temperature must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker
installation is complete, conrm the condenser drain outlet temperature 5 minutes
after a freeze cycle starts. If the condenser drain outlet temperature is not in the
proper range, use a at blade screwdriver to rotate the adjustment screw on the
water-regulating valve until the temperature is in the proper range.
25
G. Final Checklist
1. Pre-Startup
1) Is the appliance level?
2) Is the appliance 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) Have the shipping carton, tape, and packing material been removed from the icemaker?
Hasthe protective plastic lm been removed from the panels?
4) Have all electrical and water connections been made? Do electrical and water
connections meet applicable national, state, and local code and regulation
requirements?
5) Has the power supply voltage been checked or tested against the nameplate rating?
Is the power supply a properly grounded, independent 3-prong wall outlet?
6) Are the water supply and drain lines sized as specied? 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 10 PSIG (68.9 kPa) and a maximum of 113 PSIG
(779.1 kPa)?
7) 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? Has the fan blade
(if applicable) been checked to make sure it turns freely?
8) Continue to “III.B. Startup”.
2. Post-Startup
WARNING
CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after installation. Make sure that none have fallen into the ice
storage bin.
1) Has the bin control operation been conrmed?
2) Are all components, fasteners, and thumbscrews securely in place?
3) 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?
4) Has the end user been given the contact information of an authorized service agent?
5) Has the warranty registration been lled out and forwarded to the factory for warranty
registration?
26
III. Operating Instructions
R-290 Class A3 Flammable Refrigerant Used
DANGER
Risk of Fire or Explosion. Flammable Refrigerant Used.
• Be sure to follow all Important Safety Information located at the beginning of this
manual.
• Failure to install, operate, and maintain the appliance in accordance with this manual
will adversely affect safety, performance, component life, and warranty coverage and
may result is costly water damage.
• Keep clear of obstruction all ventilation openings in the appliance enclosure or in the
structure for building-in.
Risque D’Incendie ou D’Explosion. Fluide Frigorigène Inammable Utilisé.
• Veillez à respecter toutes les consignes de sécurité importantes gurant au début de
ce manuel.
• Le fait de ne pas installer, utiliser et entretenir l’appareil conformément à ce manuel
aura des conséquences négatives sur la sécurité, les performances, la durée de vie
des composants et la couverture de la garantie, et peut entraîner des dégâts des
eaux coûteux.
• Ne pas obstruer les ouvertures de ventilation dans l’enceinte de l’appareil ou dans la
structure d’encastrement.
A. Important Notes About Usage
NOTICE
• Protect the oor when moving the appliance to prevent damage to the oor.
• To help ensure that the ice storage bin drain remains clear, follow the instructions
in "IV.B.Cleaning and Sanitizing Instructions" once every year or as often as
necessary for conditions. If the ice storage bin drain becomes clogged, water could
build up in the bin and overow, leading to costly water damage.
• If water collects in the bin and will not drain, turn off the appliance and close the
water supply line shut-off valve. Call for service.
• Do not leave the appliance on during extended periods of non-use, extended
absences, or in sub-freezing temperatures. To properly prepare the appliance for
these occasions, follow the instructions in "V. Preparing the Appliance for Periods of
Non-Use."
• Do not place objects on top of the appliance.
• The ice storage bin is for ice use only. Do not store anything else in the ice storage
bin.
27
Fig. 7
Ice Storage Bin
Cube Guide
Water Tank
Silicone Hose
(Connect/disconnect
where indicated by
arrow)
Overow Pipe
(Disconnect from tank
bottom)
B. Startup and Bin Control Check
WARNING
• All parts are factory-adjusted. Improper adjustments may adversely affect safety,
performance, component life, and warranty coverage.
• To reduce the risk of electric shock, do not touch the power switch, control switch, or
plug (on corded models) with damp hands. If you have to slide the appliance back
for a built-in installation, make sure you do not damage or pinch the water supply
line, drain line, or power cord.
NOTICE
• If the appliance is turned off, wait for at least 3 min. before restarting the appliance to
prevent damage to the compressor.
• At startup, conrm that all internal and external connections are free of leaks.
1) Open the water supply line shut-off valve(s).
2) Remove the air lter.
3) Make sure the control switch is in the “OFF” position. Plug the appliance into the
electrical outlet. WARNING! To reduce the risk of electric shock, do not touch the
control switch or plug with damp hands. If you have to slide the appliance back
for a built-in installation, make sure you do not damage or pinch the water supply
line, drain line, or power cord.
4) Move the control switch to the “ICE” position.
5) Allow the appliance to operate for 10 minutes.
6) Move the control switch to the “WASH” position.
7) Allow the appliance to operate for 5 minutes.
8) Move the control switch to the “OFF” position, then unplug the appliance from the
electrical outlet.
9) Open the door.
10) Disconnect the silicone hose to drain the water. See Fig. 7.
28
11) Reconnect the silicone hose back in its correct position after all of the water has
drained.
12) Clean the ice storage bin using a neutral cleaner. Rinse thoroughly after cleaning.
13) Make sure the control switch is in the “OFF” position. Plug the appliance into the
electrical outlet.
14) Move the control switch to the “ICE” position.
15) Replace the air lter in its correct position.
16) To conrm bin control operation, press the bin control’s actuator paddle during the rst
5 minutes of the freeze cycle. The compressor, fan motor (if applicable), and pump
motor should de-energize within 15 seconds, then the drain valve should energize until
the water tank empties. After the water tank empties, the drain valve should de-energize.
17) Close the door.
18) Return to “II.G.2. Post-Startup” and complete nal checklist.
29
IV. Maintenance
This appliance must be maintained in accordance with the instruction manual and
labels provided with the appliance. Consult with your local Hoshizaki Certied Service
Representative about maintenance service. To obtain the name and phone number of
your local Hoshizaki Certied Service Representative, visit www.hoshizakiamerica.com.
WARNING
• Only qualied service technicians should service the appliance.
• To reduce the risk of electric shock, do not touch the control switch or plug with
damp hands. Make sure the control switch is in the "OFF" position before plugging in
or unplugging the appliance.
• Move the control switch to the "OFF" position and unplug the appliance from the
electrical outlet before servicing.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after any maintenance is done to the appliance. Make sure that
none have fallen into the 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
(rust colored spots) using a non-abrasive cleanser.
Yearly
Appliance and Ice
Storage Bin Liner
Clean and sanitize per the cleaning and sanitizing instructions provided
in this manual or on the maintenance label on the icemaker.
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. More
frequent cleaning may be required depending on location.
Water Hoses Inspect the water hoses and clean/replace if necessary.
30
B. Cleaning and Sanitizing Instructions
The appliance must be cleaned and sanitized at least once a year. More frequent
cleaning and sanitizing may be required in some water conditions.
WARNING
• To prevent injury to individuals and damage to the appliance, 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.
• After cleaning and sanitizing, be careful not to leave any solution in the appliance.
NOTICE
To prevent damage to the water pump, do not leave the control switch in the “WASH”
position for extended periods of time when the water tank is empty.
1. Cleaning Procedure
1) Dilute 5 . oz. (148 ml) of recommended cleaner Hoshizaki “Scale Away” with 1 gallon
(3.8 l) of water.
2) Remove the air lter. Remove all ice from the evaporator and the ice storage bin.
Note: To remove cubes on the evaporator, move the control switch to the “OFF” position
and move it back to the “ICE” position after 3 minutes. The harvest cycle starts
and the cubes will be removed from the evaporator.
3) Move the control switch to the “OFF” position. Open the door.
4) Disconnect the silicone hose to drain the water. See Fig. 7. Reconnect the silicone hose
back in its correct position after all of the water has drained.
5) Pour the cleaning solution into the water tank. Move the control switch to the “WASH”
position. Close the door.
6) After 30 minutes, move the control switch to the “OFF” position.
7) Disconnect the silicone hose to drain the water. Reconnect the silicone hose back in its
correct position after all of the water has drained.
8) Move the control switch to the “ICE” position to ll the water tank with water.
9) After 3 minutes, move the control switch to the “WASH” position.
10) After 5 minutes, move the control switch to the “OFF” position.
11) Disconnect the silicone hose to drain the water. Reconnect the silicone hose back in its
correct position after all of the water has drained.
12) Repeat steps 8 through 11 three more times to rinse thoroughly.
13) Disconnect the silicone hose and overow pipe. Next, remove the water tank by
pressing down on the snaps on the brackets (L) and (R) and pulling the tank towards
you slightly and pushing it down. Be careful to avoid breakage when handling the parts.
See Fig. 8.
31
Fig. 9
Cube Guide
Snap
Water Tank
Bin Control Switch
• The bin control switch is accessible by removing
the water tank. Pull the switch towards you for easy
maintenance.
• This is the front view with the door opened and the
water tank removed.
Fig. 8
Bracket (L)
Snap
(both ends)
Evaporator
Pump Motor
Bracket (R)
Float Switch
Cube Guide Water Tank
Push
32
14) Pull the cube guides (quantity varies depending on model) upward to remove them from
the water tank. They are snapped in place. See Fig. 9.
15) Dilute 5 . oz. (148 ml) of recommended cleaner Hoshizaki “Scale Away” with 1 gallon
(3.8 l) of water.
16) Wash the bin control switch, water tank, oat switch, cube guide, silicone hose and
overow pipe by using a nylon scouring pad, brushes and the cleaning solution.
In addition to the removed parts, also wash the bin liner and brackets (L) and (R) with
the solution.
17) Discard the cleaning solution and rinse the parts thoroughly with water.
2. Sanitizing Procedure - Following Cleaning Procedure
1) Dilute approximately 0.31 . oz. (9.2 ml) of an 8.25% sodium hypochlorite solution
(chlorine bleach) with 1 gallon (3.8 l) of warm water. Using a chlorine test strip or other
method, conrm that you have a concentration of about 200 ppm.
2) Soak the removed parts from step 16 above in a clean container containing the
sanitizing solution. After allowing the parts to soak for 10 minutes, wash them with the
solution. Also wash the bin liner and brackets (L) and (R) with the solution.
3) Discard the sanitizing solution and rinse the parts thoroughly with water.
4) Replace the removed parts in their correct positions in the reverse order of which they
were removed.
5) Dilute approximately 0.31 . oz. (9.2 ml) of an 7.5% sodium hypochlorite solution
(chlorine bleach) with 1 gallon (3.8 l) of warm water. Using a chlorine test strip or other
method, conrm that you have a concentration of about 200 ppm.
6) Pour the sanitizing solution into the water tank, and allow the sanitizer to sit for 10
minutes.
7) Move the control switch to the “WASH” position. Close the door.
8) After 15 minutes, move the control switch to the “OFF” position. Open the door.
9) Disconnect the silicone hose to drain the water. Reconnect the silicone hose back in its
correct position after all of the water has drained.
10) Repeat steps 5 through 9 one time. Repeat steps 8 through 11 in the Cleaning
Procedure three times to rinse thoroughly.
11) Flush the ice storage bin with water.
12) Move the control switch to the “ICE” position to start the automatic icemaking process.
13) Close the door. Replace the air lter in its correct position.
33
V. Preparing the Appliance for Periods of Non-Use
WARNING
Only qualied service technicians should service this appliance.
NOTICE
• During extended periods of non-use, extended absences, or in sub-freezing
temperatures, follow the instructions below to reduce the risk of costly water
damage.
• When the appliance is not used for two or three days under normal conditions, it is
sufficient to move the control switch to the "OFF" position.
• 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.
1. Remove the water from the appliance water supply line:
1) Remove the air lter if it has not already been removed.
2) Move the control switch to the “OFF” position.
3) Wait 3 minutes.
4) Close the appliance water supply line shut-off valve and open the appliance water
supply line drain valve.
5) Allow the line to drain by gravity.
6) Attach compressed air or carbon dioxide supply to the appliance water supply line drain
valve.
7) Move the control switch to the “ICE” position.
8) Quickly blow the appliance water supply line out using compressed air or carbon
dioxide.
2. Drain the water tank:
1) Move the control switch to the “OFF” position.
2) Unplug the appliance from the electrical outlet.
3) Open the door. Disconnect the silicone hose to drain the water. See Fig. 7.
4) Reconnect the silicone hose back in its correct position after all of the water has
drained.
5) Remove all ice from the ice storage bin and clean the ice storage bin.
6) Close the door.
7) Replace the air lter in its correct position.
8) Close the appliance water supply line drain valve.
34
3. On water-cooled model only, remove the water from the water-cooled condenser:
1) Make sure the control switch is in the “OFF” position and the appliance is unplugged
from the electrical outlet.
2) Remove the rear cover.
3) 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.
4) Open the condenser water supply line drain valve. If connected to a closed loop system,
also open the condenser return line drain valve.
5) Attach a compressed air or carbon dioxide supply to the condenser water supply line
drain valve.
6) 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.
7) Close the condenser water supply line drain valve. If connected to a closed loop system,
also close the condenser return line drain valve.
8) Replace the rear cover in its correct position.
35
VI. Decommissioning and Disposal
R-290 Class A3 Flammable Refrigerant Used
DANGER
Risk of Fire or Explosion. Flammable Refrigerant Used.
• Only qualied service technicians should install and service the appliance.
• Follow handling instructions carefully in compliance with national regulations.
• Dispose of properly in accordance with federal or local regulations.
• Do not puncture refrigerant tubing. Risk of re or explosion due to puncture of
refrigerant tubing; follow handling instructions carefully.
• Be sure to follow the full Decommissioning and Disposal information located in the
Service Manual for this model. The Service Manual is available at
www.hoshizakiamerica.com.
Risque D’Incendie ou D’Explosion. Fluide Frigorigène Inammable Utilisé.
• Seuls des techniciens de service qualiés doivent installer et entretenir l’appareil.
• Suivre attentivement les instructions de manutention conformément aux
réglements nationaux.
• Mettre au rebut conformément aux conformément aux réglements fédéraux ou
locaux.
• Ne pas perforer la tubulure contenant le frigorigène. Risque de feu ou d’explosion
si la tubulure contenant le frigorigène est perforée; suivre les instructions de
manutention avec soin.
• Veiller à respecter l’ensemble des informations relatives à la mise hors service et
à la mise au rebut gurant dans le manuel d’entretien de ce modèle. Le manuel
d’entretien est disponible à l’adresse suivante: www.hoshizakiamerica.com.
618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A8017-010
