Models
DCM-300BAK(-OS)
DCM-500BAK(-OS), BWK(-OS)
DCM-700BAK(-OS), BWK(-OS)
Cubelet Icemaker/Dispenser
Instruction Manual
Issued: 3-5-2025
Revised: 8-25-2025
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,
maintenance, or service 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: 1-800-233-1940; (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
CONTENTS
Important Safety Information ................................................................................................. 4
I. Specications ...................................................................................................................... 9
A. Electrical and Refrigerant Data ..................................................................................... 9
B. Dimensions/Connections .............................................................................................11
1. Air-Cooled Models .................................................................................................... 11
a) DCM-300BAK(-OS) and DCM-500BAK(-OS) ......................................................11
b) DCM-700BAK(-OS) ............................................................................................ 12
2. Water-Cooled Models ............................................................................................. 13
a) DCM-500BWK(-OS) ........................................................................................... 13
b) DCM-700BWK(-OS) ........................................................................................... 14
II. Installation Instructions .................................................................................................... 15
A. Location ...................................................................................................................... 15
B. Checks Before Installation ........................................................................................... 17
C. How to Remove Panels ............................................................................................... 18
D. Setup ........................................................................................................................... 18
E. Electrical Connection .................................................................................................. 19
F. Water Supply and Drain Connections .......................................................................... 20
1. Icemaker .................................................................................................................. 21
2. Water-Cooled Condenser ........................................................................................ 22
G. Final Checklist ............................................................................................................ 24
1. Pre-Startup ............................................................................................................... 24
2. Post-Startup ............................................................................................................ 25
III. Operating Instructions ..................................................................................................... 26
A. Important Notes About Usage ..................................................................................... 26
B. Startup and Bin Control Check .................................................................................... 27
C. Alarm Safeties ............................................................................................................. 29
IV. Maintenance ................................................................................................................... 30
A. User Maintenance Schedule ....................................................................................... 31
B. Service Maintenance Schedule ................................................................................... 31
C. Cleaning and Sanitizing Instructions ........................................................................... 32
V. Preparing the Appliance for Periods of Non-Use ............................................................. 36
VI. Decommissioning and Disposal ..................................................................................... 38
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.
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
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.
• 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).
5
DANGER
• 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 continued
• 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.
• 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.
• THE APPLIANCE MUST BE GROUNDED.
Failure to properly ground the icemaker
could result in death or serious injury.
• To reduce the risk of electric shock, do not
touch the control switch or power switch
with damp hands.
• Move the power 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.
• Risk of electric shock. Power switch in
"OFF" position does not de-energize all
loads. Use extreme caution and exercise
safe electrical practices.
• 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 supervised to ensure
that they do not play with 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 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.
8
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 appliance in a location that stays
above freezing. Normal operating ambient
temperature must be within 45°F to 100°F
(7°C to 38°C).
• Level the icemaker. An out-of-level
icemaker could result in improper
operation, poor performance, water leaks,
and/or damage to the icemaker.
• 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.
• Protect the oor when moving the
appliance to prevent damage to the oor.
9
I. Specications
A. Electrical and Refrigerant Data
The rating label and nameplate provide electrical and refrigerant data and Year of
Manufacture (YOM). The rating label can be seen by removing the front panel.
The nameplate is located on the rear panel. For certication marks, see the nameplate.
We reserve the right to make changes in specications and design without prior notice.
1. DCM-300BAK(-OS), DCM-500-BAK(-OS), and DCM-700BAK(-OS)
Single Phase
Model Number DCM-300BAK(-OS) DCM-500BAK(-OS) DCM-700BAK(-OS)
AC SUPPLY VOLTAGE ~115/60/1 ~115/60/1 ~115/60/1
COMPRESSOR 115V 30.5LRA 115V 46.0LRA 115V 53.0LRA
GEAR MOTOR 120V 1.45FLA 80W 120V 2.40FLA 1/4 HP 120V 3.0FLA 1/4 HP
FAN MOTOR 115V 0.8FLA 16W 115V 1.0FLA 55W 115V 1.75FLA 1/10 HP
AGITATING MOTOR 115V 0.9FLA 55W 115V 0.9FLA 55W 120V 1.8FLA 110W
DISPENSING MOTOR 115V 0.9FLA 55W 115V 0.9FLA 55W 120V 0.9FLA 55W
OTHER 120V 0.2A 120V 0.2A 120V 0.6A
MAXIMUM FUSE SIZE 20 AMPS 20 AMPS 20 AMPS
MAX. HACR BREAKER
(USA ONLY)
20 AMPS 20 AMPS 20 AMPS
MAX. CIRCUIT BREAKER
(CANADA ONLY)
20 AMPS 20 AMPS 20 AMPS
MINIMUM CIRCUIT AMPACITY 20 AMPS 20 AMPS 20 AMPS
DESIGN PRESSURE kPa (PSI) HI-2730 (396)
LO-1310 (190)
HI-2730 (396)
LO-1310 (190)
HI-2730 (396)
LO-1310 (190)
REFRIGERANT g (oz.) R-290 135 (4.8) R-290 133 (4.7) R-290 150 (5.3)
CLIMATE CLASS 5 5 5
INSULATION BLOWING GAS HFO 1233 ZD (E) HFO 1233 ZD (E) HFO 1233 ZD (E)
MINIMUM ROOM FLOOR AREA
M² (FT² )
6.5 (69.5) 6.4 (68.5) 7.2 (77.3)
HARVEST RATE ≤1,200 LB/DAY
(CONTINUOUS)
≤1,200 LB/DAY
(CONTINUOUS)
≤1,200 LB/DAY
(CONTINUOUS)
10
2. DCM-500BWK(-OS) and DCM-700-BWK(-OS)
Single Phase
Model Number DCM-500BWK(-OS) DCM-700BWK(-OS)
AC SUPPLY VOLTAGE ~115/60/1 ~115/60/1
COMPRESSOR 115V 46.0LRA 115V 46.0LRA
GEAR MOTOR 120V 2.40FLA 1/4 HP 120V 2.40FLA 1/4 HP
FAN MOTOR 120V 1.0FLA 55W 120V 1.0FLA 55W
AGITATING MOTOR 115V 0.9FLA 55W 115V 0.9FLA 55W
DISPENSING MOTOR 115V 0.9FLA 55W 115V 0.9FLA 55W
OTHER 120V 0.2A 120V 0.2A
MAXIMUM FUSE SIZE 20 AMPS 20 AMPS
MAX. HACR BREAKER (USA
ONLY)
20 AMPS 20 AMPS
MAX. CIRCUIT BREAKER
(CANADA ONLY)
20 AMPS 20 AMPS
MINIMUM CIRCUIT AMPACITY 20 AMPS 20 AMPS
DESIGN PRESSURE kPa (PSI) HI-2730 (396)
LO-1310 (190)
HI-2730 (396)
LO-1310 (190)
REFRIGERANT g (OZ.) R-290 130 (4.6) R-290 130 (4.6)
CLIMATE CLASS 5 5
INSULATION BLOWING GAS HFO 1233 ZD (E) HFO 1233 ZD (E)
MINIMUM ROOM FLOOR AREA
M² (FT² )
6.2 (67.0) 6.2 (67.0)
HARVEST RATE ≤1,200 LB/DAY
(CONTINUOUS)
≤1,200 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
temperature ranges may affect appliance performance.
DATA PENDING
11
B. Dimensions/Connections
1. Air-Cooled Models
a) DCM-300BAK(-OS) and DCM-500BAK(-OS)
NOTICE
Allow 6" (15 cm) clearance at rear and
sides for proper air circulation and ease
of maintenance and/or service should
they be required. Allow 24"(61cm)
clearance at top to allow for removal of
the auger.
DCM-300BAK
DCM-500BAK
DCM-300BAK-OS
DCM-500BAK-OS
A 100 [3.94] NA
B 93 [3.66] NA
C NA 100 [3.94]
D NA 99 [3.90]
E 48 [1.89] NA
F NA 207 [8.14]
Front
Units: mm [in.]
Rear
Side
DCM-300BAH(-OS)
DCM-500BAH(-OS)
DCM-300BAH(-OS)
DCM-500BAH(-OS)
12
b) DCM-700BAK(-OS)
Unit: mm [in.]
NOTICE
Allow 6" (15 cm) clearance at rear and
sides for proper air circulation and ease
of maintenance and/or service should
they be required. Allow 24"(61cm)
clearance at top to allow for removal of
the auger.
DCM-700BAK DCM-700BAK-OS
A 100 [3.94] NA
B 165 [6.5] NA
C NA 100 [3.94]
D NA 165 [6.5]
E 76 [2.99] NA
F NA 284 [11.20]
Front
Rear
Side
13
2. Water-Cooled Models
a) DCM-500BWK(-OS)
NOTICE
Allow 6" (15 cm) clearance at rear and
sides for proper air circulation and ease
of maintenance and/or service should
they be required. Allow 24"(61cm)
clearance at top to allow for removal of
the auger.
DCM-500BWK DCM-500BWK-OS
A 100 [3.94] NA
B 93 [3.66] NA
C NA 100 [3.94]
D NA 99 [3.90]
E 48 [1.89] NA
F NA 207 [8.14]
Front
Units: mm [in.]
Rear
Side
14
b) DCM-700BWK(-OS)
NOTICE
Allow 6" (15 cm) clearance at rear and
sides for proper air circulation and ease
of maintenance and/or service should
they be required. Allow 24"(61cm)
clearance at top to allow for removal of
the auger.
DCM-700BWK DCM-700BWK-OS
A 100 [3.94] NA
B 165 [6.5] NA
C NA 100 [3.94]
D NA 165 [6.5]
E 76 [2.99] NA
F NA 284 [11.2]
Front
Units: mm [in.]
Rear
Side
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 minimum
room oor area, 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)
DCM-300BAK(-OS) 135 (4.8) 6.5 (69.5)
DCM-500BAK(-OS) 133 (4.7) 6.4 (68.5)
DCM-500BWK(-OS) 130 (4.6) 6.2 (67.0)
DCM-700BAK(-OS) 150 (5.3) 7.2 (77.3)
DCM-700BWK(-OS) 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.
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.
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."
• Opti-Serve Model (-OS): Sunlight, direct and indirect, can have an effect on the
operation of the dispense sensors. If a problem is noticed, the appliance should
be moved out of direct sunlight and/or farther away from any outside windows.
• The appliance should not be located next to ovens, grills, or other high heat producing
equipment.
• The location should provide a rm and level foundation for the appliance.
• Allow 6" (15 cm) clearance at rear and sides for proper air circulation and ease of
maintenance and/or service should they be required. Allow 24" (61 cm) clearance at top
to allow for removal of the auger.
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.
• See the nameplate on the rear panel, and check that your voltage supplied corresponds
with the voltage specied 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 lm from the panels. If the appliance is exposed to the
sun or to heat, remove the lm 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.
• This appliance can be installed on a countertop or on an optional stand. If using an
optional stand, see the table below. For further options, contact your local Hoshizaki
distributor.
Model Number SD Stand
DCM-300BAK(-OS)
SD-500
DCM-500B_K(-OS)
DCM-700B_K(-OS) SD-750
• The drip tray on the front of the DCM-700BWK(-OS) is removable for installations using
an in-counter drain. Drip tray removal requires HS-5003 for DCM-700BWK or
HS-5002 for DCM-700BWK-OS.
DCM on Hoshizaki Stand
SD-700
DCM on Hoshizaki Stand
SD-500 or SD-750
DCM-700BWK
with DripTray
Removal Kit
HS-5003
DCM-700BWK-OS
with DripTray
Removal Kit
HS-5002
18
C. How to Remove Panels
See Fig. 1
• Front Panel: Remove the screw. Lift up and towards you. Disconnect the connector on
push-button models.
• Top Panel: Lift up at front slightly, push rearward and lift off.
• Apron Panel: Remove the screws and pull towards you. Disconnect the connectors on
optical-sensor models.
• Side Panel: Remove the screws and pull towards you.
• Ice Storage Bin Cover: Remove the thumbscrews and pull towards you.
Fig. 1
Push-Button Models
Opti-Serve Models
Fig. 2
Top Panel
Side Panel
Side Panel
Front Panel
Apron Panel
Connectors
Top Panel
Side Panel
Side Panel
Front Panel
Apron Panel
Connectors
Ice Storage
Bin Cover
Ice Storage
Bin Cover
D. Setup
1) Position the appliance in the selected permanent location. If applicable, attach optional
6" legs or attach to an optional stand. If attaching to a stand, refer to the instructions
included with the stand.
2) Level the appliance in both the left-to-right and front-to-rear directions. If using optional
6" legs or an optional stand, adjust the legs to make the appliance level.
3) 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.
4) Replace the panels in their correct positions.
19
E. Electrical Connection
WARNING
For 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, re, or damage.
• 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. Failure to properly ground the
appliance could result in death or serious injury.
• To reduce the risk of electric shock, do not touch the control switch or power
switch with damp hands.
• 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. 3.
• Usually an electrical permit and services
of a licensed electrician are required.
• The maximum allowable voltage variation
is ±6 percent of the nameplate rating.
• The white lead must be connected to the
neutral conductor of the power source.
NOTICE! Miswiring may result in
damage to the appliance.
• The opening for the power supply
connection is 7/8" DIA to t a 1/2" trade
size conduit.
Fig. 3
115/60/1
WARNING
ELECTRICAL CONNECTION
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 white lead
must be connected to the neutral
conductor of the power source.
See diagram below.
4A5730-010
JUNCTION BOX
1
15V
BLACK
WHITE
L
N
20
F. Water Supply and Drain Connections
See Fig. 4, 5, and 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 (69 kPa) and a maximum
of 113PSIG (779 kPa). If the pressure exceeds 113 PSIG (779 kPa), the use of a
pressure reducing valve is required.
• 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 minimum of 3/4" 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 to
water leakage or ooding.
• Be sure there is sufficient extra water supply line and drain line for the appliance
to be pulled out for service.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• Water supply line size is critical to the operation of the appliance. Failure to provide
adequate water supply to the appliance may result in damage to the appliance, damage
to property, and may void the warranty.
• The ice storage bin drain line, drip tray drain line, and water-cooled condenser drain line
(ifapplicable) must be run separately.
21
1. Icemaker
Water Supply Inlet Minimum Water Supply Line Size Drain Outlet Minimum 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 water supply line shut-off valve and drain valve must be installed.
• Water supply pressure must be a minimum of 10 PSIG (69 kPa) and a maximum of
113 PSIG (779 kPa). Ifthe pressure exceeds 113 PSIG (779 kPa), the use of a pressure
reducing valve is required.
• Drain lines must have 1/4" fall per foot (2 cm per 1 m) on horizontal runs to get a good
ow. A vented tee connection is also required for proper ow.
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum
of 2vertical inches (5 cm) must be between the end of the drain pipes from the ice
storage bin, drip tray, and water-cooled condenser (if applicable) and the oor drain.
Ice Storage Bin
Drain Outlet
3/4" FPT
Drip Tray
Drain Outlet
3/4" FPT
Fig. 4
Icemaker
Stand
Icemaker Water Supply Line
Shut-Off Valve
Icemaker Water
Supply Inlet
1/2" FPT
Icemaker Water Supply
Line Drain Valve
Vent
Tube
Minimum 1/4" Nominal ID
Copper Water Tubing or Equivalent
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Separate piping to approved
drain. Leave a 2" (5 cm)
vertical air gap between the
end of each pipe and the
drain.
2" (5 cm) air gap
Floor
Drain
Model Shown: DCM-700BAK
Be sure there is sufficient
extra water supply line and
drain line for the appliance
to be pulled out for service.
22
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
3/8" 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 condenser water supply
line.
• 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 (rotate
counterclockwise to raise temperature or clockwise to lower temperature).
Condenser Water
Supply Inlet
1/2" FPT
Condenser
Drain Outlet
3/8" FPT
Icemaker Water
Supply Inlet
1/2" FPT
Drip Tray
Drain Outlet
3/4" FPT
Fig. 5
Separate piping to approved
drain. Leave a 2" (5 cm)
vertical air gap between the
end of each pipe and the
drain.
Floor
Drain
Icemaker
Stand
Ice Storage Bin
Drain Outlet
3/4" FPT
Icemaker Water Supply
Line Shut-Off Valve
Icemaker Water Supply
Line Drain Valve
Condenser Water Supply
Line Shut-Off Valve
Condenser Water
Supply Line Drain Valve
Vent
Tube
Minimum 1/4" Nominal ID Copper
Water Tubing or Equivalent
Vent
Tube
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Minimum 1/4" Nominal
ID Hard Pipe or
Equivalent
2" (5 cm) air gap
Model Shown: DCM-700BWK
23
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
3/8" 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.
• The water supply to the condenser should not drop below 4 GPM (0.01514 m³/min).
• The pressure differential between the condenser water supply inlet and condenser
return outlet must be no less than 10 PSIG (69 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 (rotate
counterclockwise to raise temperature or clockwise to lower temperature).
Condenser Return
Line Shut-Off Valve
Condenser Return
Line Drain Valve
Icemaker Water Supply Line
Shut-Off Valve
Condenser Water Supply
Line Shut-Off Valve
Condenser Water Supply
Line Drain Valve
Condenser Water
Supply Inlet
1/2" FPT
Drip Tray
Drain Outlet
3/4" FPT
Fig. 6
Icemaker
Stand
Icemaker Water Supply
Line Drain Valve
Ice Storage Bin
Drain Outlet
3/4" FPT
Separate piping to approved
drain. Leave a 2" (5 cm)
vertical air gap between the
end of each pipe and the
drain.
Floor
Drain
Condenser
Return Outlet
3/8" FPT
Icemaker Water
Supply Inlet
1/2" FPT
Minimum 1/4" Nominal ID Copper
Water Tubing or Equivalent
Vent
Tube
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
2" (5 cm) air gap
Model Shown: DCM-700BWK
24
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) Is there at least 6" (15 cm) clearance at the rear and sides and 24" (61 cm) at the top
for proper air circulation and ease of maintenance and service?
4) Have the shipping carton, tape, and packing material been removed from the
appliance? Hasthe protective plastic lm been removed from the panels?
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 appliance?
7) 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 (69 kPa) and a maximum of 113 PSIG
(779 kPa)?
8) If the appliance is mounted at to a counter, has the perimeter where the appliance
contacts the counter been sealed with approved caulk compound? If the appliance is on
a stand, has it been secured to the stand as outlined in the stand's instructions?
On DCM-700BWK(-OS), if the drip tray has been removed, has the icemaker been
secured to the counter as outlined in the HS kit's instructions?
HS-5003 for DCM-700BAK or DCM-700BWK.
HS-5002 for DCM-700BAK-OS or DCM-700BWK-OS.
9) 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?
10) Continue to "III. Operating Instructions."
25
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) Has the ice and water dispenser operation been conrmed?
3) Are all components, fasteners, and thumbscrews securely in place?
4) 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?
5) Has the end user been given the contact information of an authorized service agent?
6) Has the warranty card 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.
• 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.
• If applicable, keep ventilation openings in the appliance clear of obstruction.
27
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 or control
switch 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, or drain line.
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) Move the control switch to the "OFF" position. See Fig. 7.
3) Remove the front panel, then move the power switch to the "ON" position. Replace the
front panel in its correct position, then turn on the power supply.
4) Move the control switch to the "ICE" position to start the automatic icemaking process.
5) Once the appliance starts to produce ice, allow it to run for another 30 minutes.
6) After 30 min., move the control switch to the "OFF" position, pause momentarily, then
move to the "DRAIN" position. Allow the water system to drain for 5 minutes.
Note: a) A momentary pause in the "OFF" position is necessary to de-energize the
control board when moving the control switch between "ICE" and "DRAIN."
Otherwise there is a delay of several minutes before the new selection takes
effect.
b) If the control switch is left in the "DRAIN" position for 10 minutes or more, a
2-beep alarm sounds every 5 seconds. Move the control switch out of the
"DRAIN" position to clear the alarm.
7) Dispense all of the ice from the ice storage bin. Note: Ice dispenses continuously for a
maximum of 60 seconds per activation.
8) Remove the front panel, then
remove the ice storage bin cover.
See Fig. 7.
9) Move the control switch to the "ICE"
position.
Fig. 7
Power Switch
Actuator Paddle
Ice Storage
Bin Cover
Control Box Cover
CONTROL
4A7317-010
ICE
OFF
DRAIN
Control Switch
28
Bin Control Check
10) Conrm bin control operation. Remove the control box cover, move the control switch
to the "ICE" position. See Fig. 7. After the "GM" LED on the control board turns on
(5sec.), the 5-min. ice purge timer starts. Bypass the 5-min. ice purge timer by pressing
the "SERVICE" button on the control board. See Fig.8. WARNING! Risk of electric
shock. Care should be taken not to touch live terminals. Otherwise, wait for the
5-min. ice purge timer to terminate and the compressor to start. Next, press and hold
the actuator paddle located inside the ice storage bin. WARNING! Keep hands, hair,
and loose clothing clear of the agitator(s) inside the ice storage bin. 6 to 10 sec.
later, the 90-sec. compressor shutdown timer starts. Once the 90-sec. compressor
shutdown timer terminates, the compressor de-energizes and the 60-sec. gear motor
shutdown timer starts. Once the 60-sec. gear motor timer terminates, the gear motor
de-energizes.
Fig. 8
Control Board
"BIN FULL" LED
"COMP" LED
"GM" LED
"POWER" LED
S2 DIP SWITCH
"ALARM" LED
"SERVICE" Button
Part Number
Label: 2A9874-03
11) Release the actuator paddle. Move the control switch to the "OFF" position, then move
the power switch to the "OFF" position. Turn off the power supply. Replace the control
box cover and ice storage bin cover in their correct positions.
12) Clean the ice storage bin liner, cover, and components using a neutral cleaner. Rinse
thoroughly after cleaning. WARNING! CHOKING HAZARD: Ensure all components,
fasteners, and thumbscrews are securely in place. Make sure that none have
fallen into the ice storage bin. Replace the ice storage bin cover in its correct position.
13) Move the power switch to the "ON" position, then replace the front panel in its correct
position. Turn on the power supply, then move the control switch to the "ICE" position to
start the automatic icemaking process.
14) Conrm that the water dispenser is operating correctly.
15) Return to "II.G.2. Post-Startup" and complete nal checklist.
29
C. Alarm Safeties
Should an alarm occur, follow the instructions in the table below to address the alarm.
If an alarm continues to occur, contact an authorized service agent.
In case of alarm, the built-in safeties shut down the unit, the orange "ALARM" LED
turns on, and audible alarms sound as listed below.
No. of Beeps
(every 5 sec.)
Type of Alarm Notes and Reset Options
1 Low-Water Safety
UFS open
>
90 sec. after WV energized.
Automatic reset once water supply is restored and UFS
closes.
2 Control Switch
In "DRAIN" position longer than 15 min.
Automatic reset once the control switch is moved to the
"ICE" position.
3 High-Pressure Switch
First and second activation in 1 hr.
Automatic reset once pressure drops below the high
pressure threshold and the high-pressure switch closes.
4 High-Pressure Switch
Third activation in 1 hr.
Turn power off. Call for service.
To avoid possible catastrophic failure, it is
recommended to leave the icemaker off until this alarm
is resolved.
5 Freeze Timer
WV off
>
30 min. since last WV activation.
Call for service. Manual reset. Turn power off and
on again. Check for FS stuck (up), WV leaking by,
TXV defective, LLV not opening, low charge, HM not
bypassing, or inefficient Comp.
6 Low Voltage
92VAC
±
5% or less.
Green "POWER" LED turns off if voltage
protection operates.
Control voltage safeties automatically reset when
voltage is corrected.
7 High Voltage
147VAC
±
5% or more.
8 a) Gear Motor Fuse or Protector Open
CCR contacts fail to close.
Used on all models.
Turn power off. Check for GM fuse or protector open.
Replace fuse or let protector cool and reset.
If persistent trips occur, call for service.
b) Evaporator Thermistor
At GM startup Evaporator
thermistor < -4°F (-20°C).
Used on Cubelet (-C), (-SC),
and (-CB) models only.
Turn power off. Call for service.
To avoid possible catastrophic failure, it is
recommended to leave the icemaker off until this alarm
is resolved.
Manual reset. Turn power off and on again.
9 Bin Control 2 (Mechanical)
Open Circuit Control Board K8
(#3 and #4)
Not used on DCM or
self-contained models.
Manual reset. Turn power off and on again.
Modular Flaker and Cubelet (-C), (-SC),
and (-CB) Models:
Control Board S2 Dip Switch #7 must be ON.
DCM and Self-Contained Models:
Control Board S2 Dip Switch #7 must be OFF.
10 Evaporator Thermistor
Evaporator thermistor reaches -22°F
(-30°C) for 3 consecutive cycles.
Used on Cubelet (-C), (-SC),
and (-CB) models only.
Not used on DCM or
self-contained models.
Turn power off. Call for service.
To avoid possible catastrophic failure, it is
recommended to leave the icemaker off until this alarm
is resolved.
Manual reset. Turn power off and on again.
Legend: CCR–compressor control relay; Comp–compressor; DV–drain valve;
EH–evaporator heater; FM–fan motor; FMR–fan motor-remote; FS–oat switch;
GM–gear motor; HM–headmaster (C.P.R.); L LV -liquid line valve; S LV–suction
line valve; TXV–thermostatic expansion valve; UFS–upper oat switch; WV–inlet
water valve
30
IV. Maintenance
The 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
• Items listed under "IV.A. User Maintenance Schedule" may be performed by the
user; otherwise, only qualied service technicians should service the appliance.
• Failure to install, operate, and maintain the appliance in accordance with this manual
will adversely affect safety, performance, component life, and warranty coverage.
• To reduce the risk of electric shock, do not touch the control switch or power switch
with damp hands.
• Before Performing Maintenance/Service: Move the power switch to the "OFF"
position, then turn off the power supply. Lockout/Tagout to prevent the power supply
from being turned back on inadvertently. Power switch in "OFF" position does not
de-energize all loads.
• 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.
• Do not place ngers or any other objects into the ice discharge opening.
• After service, make sure that there are no wires pinched between the panels and
appliance. Make sure you do not damage or pinch the water supply line or drain line.
Fig. 9
Spout B
Spout A
Extruding Head
Agitating Motors
1 on DCM-300 or DCM-500
2 on DCM-700
Dispensing Motor
Agitators
1 on DCM-300 or DCM-500
2 on DCM-700
Dispensing
Auger
Power Switch
Reservoir
Bin Control Assembly
Ice Storage Bin Cover
Spout Cover
Evaporator Assembly
Optical Sensors (-OS Models)
Float Switch Assembly
Ice Guide (DCM-700)
Drain Pipe Holder (DCM-700)
Drain Pipe (DCM-700)
Model Shown: DCM-700BAK-OS
CONTROL
4A7317-010
ICE
OFF
DRAIN
Control Switch
Drip Tray Pan
31
A. User Maintenance Schedule
The maintenance schedule below is a guideline. More frequent maintenance may be
required depending on water quality, the icemaker's environment, and local sanitation
regulations.
Maintenance Schedule
Frequency Area Task
Bi-Weekly Air Filter Inspect. Wash with warm water and neutral cleaner if dirty.
Monthly Appliance 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.
B. Service Maintenance Schedule
The service maintenance schedule below is a guideline; service maintenance items are
to be performed by qualied service technicians only. More frequent maintenance may
be required depending on water quality, the appliance's environment, and local sanitation
regulations.
Maintenance Schedule
Frequency Area Task
Monthly External Water Filters Check for proper pressure and change if necessary.
Every 6
Months
Appliance and Ice
Storage Bin
Clean and sanitize per the cleaning and sanitizing instructions
provided in this manual.
Evaporator Condensate
Drain Pan and Gear
Motor Drain Pan
Wipe down with a clean cloth and warm water. Slowly pour one cup
of sanitizing solution (prepare as outlined in the sanitizing instructions
in this manual) into the evaporator condensate drain pan. Be careful
not to overow the pan. This solution will ow down to the gear motor
drain pan and out the drain line to sanitize these areas. Repeat with a
cup of clean water to rinse.
Appliance, Ice Storage
Bin, and Drip Tray Drains
Check to make sure they are clear.
Extruding Head Seal
Bolts
Inspect for leakage around seal bolts. Tighten (see torque value
below) or replace as necessary. Seal bolts must be replaced once
removed because seal material is one-time use only. If new seal bolts
do not have preapplied threadlocker, apply Loctite243 or equivalent
threadlocker to seal bolt threads.
• Torque: 11.1 ft-lb/15 N·m
Tighten 2 times. Allow at least 5 sec. in between each tightening.
Yearly Inlet Water Valve,
Dispense Water Valve,
and Drain Valve
Close the icemaker water supply line shut-off valve and drain the
water system. Clean the inlet water valve screen and clean and
inspect the drain valve.
Water Hoses Inspect the water hoses and clean/replace if necessary.
Condenser Inspect. Clean if necessary by using a brush or vacuum cleaner.
Appliance Inspect for oil spots, loose components, fasteners, and wires.
Upper Bearing (extruding
head)
Check for wear using .02" round stock or pin gauge. Replace
both upper bearing and lower bearing if wear exceeds factory
recommendations. See the Service Manual for details.
After
3 Years,
then Yearly
Upper Bearing (extruding
head); Lower Bearing
and O-Ring (lower
housing); Mechanical
Seal; Evaporator
Cylinder; Auger
Inspect. Replace both upper bearing and lower bearing if wear
exceeds factory recommendations. Replace the mechanical seal if
the seal's contact surfaces are worn, cracked, or scratched. See the
Service Manual for details.
32
C. Cleaning and Sanitizing Instructions
The appliance must be cleaned and sanitized at least twice a year. More frequent
cleaning and sanitizing may be required in some conditions.
WARNING
• To prevent injury to individuals and damage to the appliance, do not use ammonia
type cleaners.
• Before Servicing: Move the power switch to the "OFF" position, then unplug the
appliance from the electrical outlet.
• Carefully follow any instructions provided with the cleaning and sanitizing
solutions.
• 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, do not use ice made from the cleaning and sanitizing
solutions. Be careful not to leave any solution on the parts or in the ice storage
bin.
1. Cleaning Solution
Dilute 9 . oz. (266 ml or 18 tbs) of Hoshizaki "Scale Away" with 1.6 gal. (6.0 l) of warm
water. This is a minimum amount. Make more solution if necessary. IMPORTANT! For
safety and maximum effectiveness, use the solution immediately after dilution.
2. Cleaning Procedure
1) Close the icemaker water supply line shut-off valve.
2) Move the control switch to the "OFF" position, pause momentarily, then move to the
"DRAIN" position. See Fig. 9. Allow the water system to drain for 5 minutes.
Note: a) A momentary pause in the "OFF" position is necessary to de-energize the
control board when moving the control switch between "ICE" and "DRAIN."
Otherwise there is a delay of several minutes before the new selection takes
effect.
b) If the control switch is left in the "DRAIN" position for 10 minutes or more, a
2-beep alarm sounds every 5 seconds. Move the control switch out of the
"DRAIN" position to clear the alarm.
3) Dispense all of the ice from the ice storage bin. Note: Ice dispenses continuously for a
maximum of 60 seconds per activation.
4) Move the control switch to the "OFF" position, then turn off the power supply. Remove
the front and top panels, then move the power switch to the "OFF" position.
5) Remove the ice storage bin cover. Remove spout B, then remove spout A.
6) Pour the cleaning solution over the extruding head until the evaporator assembly and
the reservoir are full and the solution starts to overow into the drain pan.
Note: If there is excess scale on the extruding head, ll the evaporator assembly and
reservoir as described above, then use a clamp on the reservoir hose between
the reservoir and evaporator assembly to block ow. Pour additional cleaning
solution over the extruding head until the evaporator assembly is completely full.
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7) Replace spout A, spout B, and the ice storage bin cover in their correct positions.
8) Allow the icemaker to sit for 10 minutes before operation. If you placed a clamp on the
reservoir hose in step 6, remove it before operation.
9) In bad or severe water conditions, clean the oat switch assembly as described below.
Otherwise, continue to step 10.
a. Remove the oat switch assembly from the reservoir cover.
b. Wipe down the oat switch assembly with the cleaning solution.
c. Rinse the oat switch assembly thoroughly with clean water.
d. Replace the oat switch assembly in its correct position.
10) Move the power switch to the "ON" position and replace the panels in their correct
positions. Turn on the power supply, then move the control switch to the "ICE" position.
Make ice using the solution until the icemaker stops making ice.
11) Move the control switch to the "OFF" position, pause momentarily, then move to the
"DRAIN" position. Allow the water system to drain for 5 minutes.
12) Move the control switch to the "OFF" position, pause momentarily, then move to the
"ICE" position. Open the icemaker water supply line shut-off valve to supply water to the
reservoir.
13) After the gear motor starts, move the control switch to the "OFF" position, pause
momentarily, then move to the "DRAIN" position. Allow the water system to drain for
5minutes.
Note: If you do not sanitize the appliance, move the control switch to the "OFF" position,
pause momentarily, then move to the "ICE" position after the water system drains.
Allow the icemaker to run for 30 minutes, then move the control switch to the
"OFF" position. Turn off the power supply, then remove the front panel and ice
storage bin cover. Move the power switch to the "OFF" position. Go to step 12 in
"IV.C.2.c) Cleaning and Sanitizing Procedure."
14) Move the control switch to the "OFF" position, then turn off the power supply.
15) Close the icemaker water supply line shut-off valve.
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3. Sanitizing Solution
Dilute 0.6 . oz. (16.2 ml or 1 tbs) of a 7.5% sodium hypochlorite solution (chlorine bleach)
with 1.6 gal. (6.0 l) of warm water. This is a minimum amount. Make more solution
if necessary. IMPORTANT! For safety and maximum effectiveness, use the solution
immediately after dilution.
4. Sanitizing Procedure - Following Cleaning Procedure
1) Make sure the control switch is in the "OFF" position, the power supply is off, and the
icemaker water supply line shut-off valve is closed.
2) Remove the front and top panels, then move the power switch to the "OFF" position.
3) Remove the ice storage bin cover. Remove spout B, then remove spout A.
4) Pour the sanitizing solution over the extruding head until the evaporator assembly and
the reservoir are full and the solution starts to overow into the drain pan.
5) Replace spout A, spout B, and the ice storage bin cover in their correct positions.
6) Allow the icemaker to sit for 10 minutes before operation.
7) Move the power switch to the "ON" position and replace the panels in their correct
positions. Turn on the power supply, then move the control switch to the "ICE" position.
Make ice using the solution until the icemaker stops making ice.
8) Move the control switch to the "OFF" position, pause momentarily, then move to the
"DRAIN" position. Allow the water system to drain for 5 minutes.
9) Move the control switch to the "OFF" position, pause momentarily, then move to the
"ICE" position. Open the icemaker water supply line shut-off valve to supply water to the
reservoir.
10) After the gear motor starts, move the control switch to the "OFF" position, pause
momentarily, then move to the "DRAIN" position. Allow the water system to drain for
5minutes.
11) Move the control switch to the "OFF" position, pause momentarily, then move to the
"ICE" position. Allow the icemaker to run for 30 minutes, then clean and sanitize the
dispensing components as outlined below.
5. Dispensing Components
Perform after cleaning and sanitizing the water system as outlined above.
a) Cleaning Solution
Dilute 9 . oz. (266 ml or 18 tbs) of Hoshizaki "Scale Away" with 1.6 gal. (6.0 l) of warm
water.
b) Sanitizing Solution
Dilute 0.6 . oz. (16.2 ml or 1 tbs) of a 7.5% sodium hypochlorite solution (chlorine bleach)
with 1.6 gal. (6.0 l) of warm water.
c) Cleaning and Sanitizing Procedure
1) Move the control switch to the "OFF" position, then turn off the power supply.
2) Remove the front and top panels, then move the power switch to the "OFF" position.
3) Remove the ice storage bin cover.
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4) Remove the motor bracket thumbscrews, rst from the vertical plane and then from the
horizontal plane. While holding on to the corresponding agitator or auger, move the
agitating motor or the dispensing motor towards you. Remove the agitator(s) and the
dispensing auger from the ice storage bin. See Fig. 9. Note: DCM-300 and DCM-500
models have 1 agitator and DCM-700 models has 2 agitators.
5) Remove the bin control assembly. See Fig. 10.
6) Remove the snap pin, shaft, and actuator.
7) Remove spout B, spout A, and their gaskets.
8) Remove the spout cover, ice dispensing spout, and water dispensing nozzle.
See Fig. 11. On DCM-700 models, also remove the ice guide, drain pipe holder, and
drain pipe from the ice storage bin. See Fig. 9.
9) Immerse the agitator(s), dispensing auger, and parts removed in steps 5 through 8
in the cleaning solution for 15 min. Rinse the parts thoroughly with clean water, then
immerse the parts into the sanitizing solution for 15 min. Rinse the parts thoroughly with
clean water. Onoptical sensor models (-OS), wipe the optical sensors with cleaning
solution and then with a clean, damp cloth.
10) Wipe the shutter located above the ice dispensing spout thoroughly with a clean cloth.
11) Reassemble the bin control assembly and replace all parts in the reverse order of which
they were removed.
12) Pour warm water into the ice storage bin and melt any remaining ice. Clean the ice
storage bin liner and the ice storage bin cover using a neutral cleaner. Rinse thoroughly
after cleaning. Replace the ice storage bin cover in its correct position.
13) Move the power switch to the "ON" position, then replace the panels in their correct
positions. Turn on the power supply, then move the control switch to the "ICE" position
to start the automatic icemaking process.
Fig. 11
Spout Cover
Ice Dispensing Spout
Water Dispensing Nozzle
Fig. 10
Snap Pin
Shaft
Actuator
Bin Control Bracket
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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 power switch to the "OFF" position.
1. Remove the ice from the ice storage bin, drain the water system, and remove the
water from the icemaker water supply line:
1) Close the icemaker water supply line shut-off valve and open the icemaker water supply
line drain valve.
2) Move the control switch to the "OFF" position, pause momentarily, then move to the
"DRAIN" position. Allow the water system to drain for 5 minutes.
Note: a) A momentary pause in the "OFF" position is necessary to de-energize the
control board when moving the control switch between "ICE" and "DRAIN."
Otherwise there is a delay of several minutes before the new selection takes
effect.
b) If the control switch is left in the "DRAIN" position for 10 minutes or more, a
2-beep alarm sounds every 5 seconds. Move the control switch out of the
"DRAIN" position to clear the alarm.
3) Dispense all of the ice from the ice storage bin. Note: Ice dispenses continuously for a
maximum of 60 seconds per activation.
4) Attach a compressed air or carbon dioxide supply to the icemaker water supply line
drain valve.
5) While engaging the water dispense switch, blow out the water dispense valve using the
compressed air or carbon dioxide supply. After blowing out the water dispense valve,
leave the compressed air or carbon dioxide supply owing. Move the control switch to
the "OFF" position, pause momentarily, then move to the "ICE" position to open the inlet
water valve and briey blow out the inlet water valve. After blowing out the inlet water
valve, move the control switch to the "OFF" position.
6) Close the icemaker water supply line drain valve.
7) Turn off the power supply, then remove the front panel and move the power switch to the
"OFF" position.
8) Remove the ice storage bin cover. Clean the ice storage bin liner and the ice storage bin
cover using a neutral cleaner. Rinse thoroughly after cleaning. Replace the ice storage
bin cover and the front panel in their correct positions.
Note: If your appliance has a water-cooled condenser, leave the front panel off and
continue to the next section.
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2. On water-cooled model only, remove the water from the water-cooled condenser:
1) Make sure the control switch and the power switch are in the “OFF” position and that
the power supply is off. Remove the top, apron, and left side panels.
2) 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.
3) Open the condenser water supply line drain valve. If connected to a closed loop system,
also open the condenser return line drain valve.
4) Attach a compressed air or carbon dioxide supply to the condenser water supply line
drain valve.
5) 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.
6) Close the condenser water supply line drain valve. If connected to a closed loop system,
also close the condenser return line drain valve.
7) Replace the rear cover in its correct position.
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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 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.
• 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.
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618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A7729-010
