Hoshizaki F-450MAH(-C) User manual

Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Models
F-450MAH(-C)
Modular Flaker
Hoshizaki America, Inc.
INSTRUCTION MANUAL
Issued: 1-28-2001
Revised: 5-20-2011

2
IMPORTANT
Only qualied service technicians should install, service, and maintain the
icemaker. No installation, service, or maintenance should be undertaken until
the technician has thoroughly read this Instruction Manual. Likewise, the owner/
manager should not proceed to operate the icemaker until the installer has
instructed them on its proper operation. Failure to install, operate, and maintain
the equipment in accordance with this manual may adversely affect safety,
performance, component life, and warranty coverage.
Hoshizaki provides this manual primarily to assist qualied service technicians in the
installation, maintenance, and service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, write, or send an e-mail message to the Hoshizaki Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
Phone: [phone] Technical Support
[phone]
Fax: [phone]
[phone]
E-mail: [email protected]
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
  •ModelNumber
  •SerialNumber
  •Completeanddetailedexplanationoftheproblem.

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CONTENTS
Important Safety Information ................................................................................................. 4
I. Specications...................................................................................................................... 5
A. Nameplate Rating ......................................................................................................... 5
B. Dimensions/Connections .............................................................................................. 6
II. Installation and Operating Instructions .............................................................................. 7
A. Checks Before Installation............................................................................................. 7
B. How to Remove Panels ................................................................................................. 7
C. Location ........................................................................................................................ 8
D. Setup............................................................................................................................. 8
E. Electrical Connection .................................................................................................... 9
F. Water Supply and Drain Connections .......................................................................... 10
G. Final Checklist ........................................................................................................... 12
H. Startup ........................................................................................................................ 13
III. Cleaning and Maintenance ............................................................................................. 15
A. Cleaning and Sanitizing Instructions........................................................................... 15
B. Maintenance................................................................................................................ 19
C. Preparing the Icemaker for Long Storage ................................................................... 20
IMPORTANT
This manual should be read carefully before the icemaker is installed and
operated. Only qualied service technicians should install, service, and
maintain the icemaker. Read the warnings contained in this booklet carefully as
they give important information regarding safety. Please retain this booklet for
any further reference that may be necessary.

4
Important Safety Information
Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, or damage to the unit.
WARNING Indicates a hazardous situation which could result in death or
serious injury.
CAUTION Indicates a situation which could result in damage to the unit.
IMPORTANT Indicates important information about the use and care of the
unit.
WARNING
This unit 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 eventual damage
caused by improper, incorrect, and unreasonable use.
To reduce the risk of death, electric shock, serious injury, or re, follow
basic precautions including the following:
•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 severe damage to
equipment.
•Thisunitrequiresanindependentpowersupply.Seethenameplatefor
proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse
can result in a tripped breaker, blown fuse, or damage to existing wiring. This
could lead to heat generation or re.
•THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit could
result in death or serious injury.
•Thisunitshouldbedisassembledorrepairedonlybyqualiedservice
personnel to reduce the risk of electric shock, injury, or re.
•Donotmakeanyalterationstotheunit.Alterationscouldresultinelectric
shock, injury, re, or damage to the unit.

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I. Specications
A. Nameplate Rating
1. F-450MAH(-C) (air-cooled)
HOSHIZAKI ICE MAKER
MODEL NUMBER F-450MAH
SERIAL NUMBER
AC SUPPLY VOLTAGE 115-120/60/1
COMPRESSOR 120V 7.5RLA 54.5 LRA
GEAR MOTOR 115V 2.4FLA 1/4HP
FAN MOTOR 120V 0.85FLA 1/15HP
OTHER 120V 0.03A
MAXIMUM FUSE SIZE 20 AMPS
MAX. HACR BREAKER (USA ONLY) 20 AMPS
MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS
MINIMUM CIRCUIT AMPACITY 20 AMPS
DESIGN PRESSURE HI-427PSI LO-230PSI
REFRIGERANT 404A 1 lb
See the nameplate for electrical and refrigeration specications. This nameplate is located
on the rear panel.
Since this nameplate is located on the rear panel of the icemaker, it cannot be read when
the back of the icemaker is against a wall or against another piece of kitchen equipment.
Therefore, the necessary electrical and refrigeration information is also on the rating label,
which can be easily seen by removing only the front panel of the icemaker.
We reserve the right to make changes in specications and design without prior notice.
Note: Only the "MODEL NUMBER" is replaced for F-450MAH-C.
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
ICE MAKER WITHOUT
STORAGE MEANS
946Z COMPONENT
186090

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B. Dimensions/Connections
1. F-450MAH(-C) (air-cooled)
Unit: [in.] mm

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II. Installation and Operating Instructions
WARNING
1. This icemaker must be installed in accordance with all applicable national,
state, and local regulations.
2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews
are securely in place after installation. Make sure that none have fallen into
the storage bin.
A. 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icemaker,
it will not work properly.
•Removethefrontpaneltopreventdamagewheninstallingtheicemaker.See"II.B.
How to Remove Panels."
•Removethepackagecontainingtheaccessories.
•Removetheprotectiveplasticlmfromthepanels.Iftheicemakerisexposedtothe
sun or to heat, remove the lm after the icemaker cools.
•Checkthattherefrigerantlinesdonotrubortouchlinesorothersurfaces,andthatthe
fan blade turns freely.
•Checkthatthecompressorissnugonallmountingpads.
•Seethenameplateontherearpanel,andcheckthatyourvoltagesupplied
corresponds with the voltage specied on the nameplate.
B. How to Remove Panels
See Fig. 1
•FrontPanel:Removethescrew.Liftupandtowards
you.
•TopPanel:Liftupatthefrontslightly,pushrearward,
and lift off.
•SidePanels:Removethescrew.Slideforwardslightly
and lift off.
Fig. 1
Top Panel
Front Panel
Left Side Panel
Right Side Panel

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C. Location
CAUTION
1. This icemaker is not intended for outdoor use. Normal operating ambient
temperature should be within 45°F to 100°F (7°C to 38°C); Normal operating
water temperature should be within 45°F to 90°F (7°C to 32°C). Operation
of the icemaker, for extended periods, outside of these normal temperature
ranges may affect icemaker performance.
2. This icemaker will not work at sub-freezing temperatures. To prevent
damage to the water supply line, drain the icemaker if the air temperature is
going to go below 32°F (0°C). See "III.C. Preparing the Icemaker for Long
Storage."
For best operating results:
•Theicemaker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equipment.
•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.
D. Setup
1) Unpack the storage bin, and attach the 4 adjustable legs
provided (bin accessory) to the bottom of the storage bin.
2) Position the storage bin in the selected permanent location.
3) Place the icemaker on top of the storage bin.
4) Secure the icemaker to the storage bin using the 2mounting
brackets and the bolts provided. See Fig. 2.
5) Level the icemaker and storage bin in both the left-to-right
and front-to-rear directions. Adjust the storage bin legs to
make the icemaker level.
6) Replace the panels in their correct positions.
Fig. 2
Icemaker
Bin
Mounting
Brackets
Bolts

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E. Electrical Connection
WARNING
1. Electrical connection must be hard-wired and must meet national, state, and
local electrical code requirements. Failure to meet these code requirements
could result in death, electric shock, serious injury, re, or severe damage to
equipment.
2. This icemaker requires an independent power supply. See the nameplate for
proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse
can result in a tripped breaker, blown fuse, or damage to existing wiring. This
could lead to heat generation or re.
3. THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit could
result in death or serious injury.
4. 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±10percentofthenameplaterating.
•Thewhiteleadmustbeconnectedtotheneutralconductorofthepowersource.
CAUTION! Miswiring may result in severe damage to the icemaker. See Fig. 3.
•Theopeningforthepowersupplyconnectionis7/8"DIAtota1/2"tradesizeconduit.
115-120/60/1
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.
4A4766-010
JUNCTION BOX
1
15-120V
BROWN
WHITE
L
N
Fig. 3

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F. Water Supply and Drain Connections
See Fig. 4
WARNING
1. Water supply and drain connections must be installed in accordance with
applicable national, state, and local regulations.
2. Normal operating water temperature should be within 45°F to 90°F (7°C
to 32°C). Operation of the icemaker, for extended periods, outside of this
normal temperature range may affect icemaker performance.
3. To prevent damage to equipment, do not operate the icemaker when the
water supply is off, or if the pressure is below 10 PSIG. Do not run the
icemaker until the proper water pressure is reached.
•Aplumbingpermitandservicesofalicensedplumbermayberequiredinsomeareas.
•Externallters,strainers,orsoftenersmayberequireddependingonwaterquality.Contact
your local Hoshizaki distributor for recommendations.
•Watersupplypressureshouldbeaminimumof10PSIGandamaximumof113PSIG.If
the pressure exceeds 113 PSIG, the use of a pressure reducing valve is required.
•Icemakerwatersupplyinletis1/2"femalepipethread(FPT).Aminimumof3/8"OD
copper tubing is recommended for the icemaker water supply line.
•Anicemakerwatersupplylineshut-offvalveanddrainvalveshouldbeinstalled.
•Storagebinandicemakerdrainoutletsare3/4"FPT.Aminimumof3/4"ODhardpipeis
recommended for the storage bin and icemaker drain lines.
•Thestoragebindrainlineandicemakerdrainlinemustberunseparately.
•Drainlinesmusthave1/4"fallperfoot(2cmper1m)onhorizontalrunstogetagood
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
2 vertical inches (5 cm) should be between the end of the drain pipes from the icemaker
and storage bin and the oor drain.