
Number: MAN-328-R
Issued: 03-14-2019
Revised: 03-22-2019
Refrigerator
Model
HR24C

2
Only qualified service technicians should install and service the
appliance. To obtain the name and phone number of your local
Hoshizaki Cered Service Representave, visit www.hoshizaki.com.
No installaon or service should be undertaken unl the technician has
thoroughly read this Instrucon Manual. Likewise, the owner/manager
should not proceed to operate the appliance unl the installer has
instructed them on its proper operaon. Failure to install, operate, and
maintain the appliance in accordance with this manual may adversely
aect safety, performance, component life, and warranty coverage.
Proper installaon is the responsibility of the installer. Product failure
or property damage due to improper installaon is not covered under
warranty.
Hoshizaki provides this manual primarily to assist qualified service
technicians in the installaon, maintenance, and service of the appliance.
Should the reader have any quesons or concerns which have not been
sasfactorily 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
Fax: 1-800-843-1056; (770) 487-3360
E-mail: t[email protected]
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
An: Hoshizaki Technical Support Department
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communicaon MUST
include the following informaon:
• Model Number ____________________________
• Serial Number _____________________________
• Complete and detailed explanaon of the problem.
WARNING

3
TABLE OF CONTENTS
Introduction ...............................................................
Important safety information .....................................
General safety ...........................................................
Know your equipment ...............................................
Check for shipping damage ......................................
Handling the cabinet ................................................
Location ....................................................................
Remove the crate and skid .......................................
Level the cabinet .......................................................
Electrical installation ..................................................
Installing the shelves .................................................
Start up the cooler .....................................................
Door reversal .............................................................
Controls and adjustments ..........................................
Steps to change setpoint ...........................................
Alarm safeties ............................................................
Alarm indicators .........................................................
Cleaning and maintenance instructions .....................
Preparing the appliance for periods of non-use .........
Disposal .....................................................................
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4
7
8
9
10
10
10
10
11
12
12
13
16
16
16
17
18
19
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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 essenal informaon for the connued
safe use and maintenance of the appliance. Retain this manual for any
further reference that may be necessary.
IMPORTANT

4
Important Safety Informaon
Throughout this manual, noces appear to bring your aenon to
situaons which could result in death, serious injury, damage to the
appliance, or damage to property.
INTRODUCTION
This manual contains instrucons for installaon, operaon and general
maintenance of your unit.
Indicates a hazardous situaon that, if not avoided, could
result in death or serious injury.
WARNING
NOTICE
IMPORTANT
DANGER
Indicates a hazardous situaon that, if not avoided, will
result in death or serious injury.
Indicates important informaon about the use and care
of the appliance.
Indicates a situaon that, if not avoided, could result in
damage to the appliance or property.
• Follow handling instrucons carefully in compliance with U.S. government
regulaons.
• Do not use mechanical devices to defrost.
• Do not puncture refrigerant tubing. Risk of re or explosion due to
puncture of refrigerant tubing; follow handling instrucons carefully.
• Component parts shall be replaced with like components.
• Servicing shall be done by factory authorized service personnel to
minimize the risk of possible ignion due to incorrect parts or improper
service.
• Consult instrucon manual/service manual before aempng to install or
service this product. All safety precauons must be followed.
• Dispose of properly in accordance with federal or local regulaons.
• Do not place any potenal ignion sources in or near the appliance.
DANGER
Risk of Fire or Explosion
Flammable Refrigerant Used

5
WARNING
This appliance should be desned 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 resulng from improper, incorrect, and unreasonable use. Failure
to install, operate, and maintain the appliance in accordance with this manual
will adversely aect safety, performance, component life, and warranty
coverage.
To reduce the risk of death, electric shock, serious injury, or re, follow basic
precauons including the following:
• Only qualied service technicians should install and service this appliance.
• Wear appropriate personal protecve equipment (PPE) when servicing
the appliance.
• This appliance must be installed in accordance with applicable naonal,
state, and local codes and regulaons.
• To reduce the risk of electric shock, do not touch the plug with damp
hands.
• This appliance requires an independent power supply of proper
capacity. See the nameplate for electrical specicaons. Failure to use
an independent power supply of proper capacity can result in a tripped
breaker, blown fuse, damage to exisng wiring, or component failure.
This could lead to heat generaon or re.
• THIS APPLIANCE MUST BE GROUNDED: This appliance is equipped with a
NEMA 5-15 three-prong grounding plug to reduce the risk of potenal
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 plug and do not use an adapter plug. Failure to follow
these instrucons may result in death, electric shock, or re.
• Do not use an extension cord.
• 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 acons 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.
• The GREEN ground wire in the factory-installed power cord is connected
to the appliance. If it becomes necessary to remove or replace the power
cord, be sure to connect the power cord's ground wire.
• Do not splash, pour, or spray water directly onto or into the appliance.
This might cause short circuit, electric shock, corrosion, or failure.
• Do not make any alteraons to the appliance. Alteraons could result in
electric shock, injury, re, or damage to the appliance.

6
WARNING, continued
• This appliance is not intended for use by persons (including children) with
reduced physical, sensory, or mental capabilies, or lack of experience
and knowledge, unless they have been given supervision or instrucon
concerning use of the appliance by a person responsible for their safety.
• Children should be properly supervised around this appliance.
• Do not climb, stand, or hang on the appliance or door or allow children
or animals to do so. Do not climb into the appliance or allow children or
animals to do so. Death or serious injury could occur or the appliance
could be damaged.
• Be careful not to pinch ngers when opening and closing the doors. Be
careful when opening and closing the doors when children are in the area.
• Open and close the doors with care. Doors opened too quickly or forcefully
may cause injury or damage to the appliance or surrounding equipment.
• Do not use combusble spray or place volale 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 equipment.
• Do not throw anything onto the shelves or load any single shelf with more
than 40 lb. (18 kg) (For small shelf) and 59 lb. (27 kg) (For large shelf) of
product. They might fall o and cause injury.
• This appliance is designed only for storage of package food. Employ
sanitary methods. Use for any other purposes (for example, storage of
chemicals or medical supplies such as vaccine and serum) could cause
deterioraon of stored items.
• Do not block the cabinet air inlet or outlet, otherwise cooling performance
may be reduced.
• Do not ghtly pack the cabinet. Allow some space between items to
ensure good air ow. Also allow space between items and interior
surfaces.
• Do not place any product on the oor of the cabinet. All product must be
placed on properly installed shelves.
• Do not put warm or hot foods in the cabinet. Let them cool rst, or they
will raise the cabinet temperature and could deteriorate other foods in
the cabinet or overload the appliance.
• All foods should be wrapped in plasc lm or stored in sealed containers.
Otherwise foods may dry up, pass their smells onto other foods, cause
frost to develop, result in poor appliance performance, or increase the
likelihood of cross-contaminaon. Certain dressings and food ingredients,
if not stored in sealed containers, may accelerate corrosion of the
evaporator, resulng in failure.
• Do not store items near the air outlet. They might freeze up and crack or
break causing a risk of injury or contaminaon of other food.
• This unit must be installed and located appropriately, following the
installaon instrucons before its use.

7
NOTICE
• Protect the oor when moving the appliance to prevent damage to the
oor.
• Keep venlaon openings, in the appliance enclosure or in the built
in structure, clear of obstrucon. Do not place anything on top of the
appliance. Blockage of airow could negavely aect performance and
damage the appliance.
• To prevent deformaon or cracks, do not spray inseccide onto the plasc
parts or let them come into contact with oil.
• To avoid damage to the gasket, use only the door handle when opening
and closing.
- Avoid prolonged exposure of the appliance to direct sunlight.
- Only genuine spare parts should be used to service this refrigerator.
GENERAL SAFETY
WARNING, continued
• Do not allow children to climb, step or hang onto the shelves inside the
cooler. That could damage the unit and cause serious injuries to them.
• Do not touch the cold surfaces of the cooler with your hands wet or
moist. The skin can sck to these cold surfaces.
• Do not store gasoline or other ammable liquids or gases, near this or
other electrical equipment.
• Keep your ngers away from the spaces between doors and cabinet are
small, so be careful when closing doors when children are around.
• Unplug the cooler before cleaning or performing any repair.

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KNOW YOUR EQUIPMENT
CONTROL
MODULE
DOOR
LEVELING LEG
POWER CORD
PULL OUT
SHELF
FIG. 1

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CHECK FOR SHIPPING DAMAGE
Prior to leaving the factory, each cabinet is throughly inspected and
performance tested to assure proper operang temperatures.
Check the crate thoroughly for signs of shipping damage. If external
damage exists, internal damage is also probable. Uncrang should be done
while the carrier´s representave is present. Otherwise, the equipment
should be uncrated as soon as possible, preferably within ve (5) days.
The manufacturer is not responsible for in-transit damage and the
consignee must le any required damage claims directly with the carrier.
If the damage is severe and obvious, write a brief descripon of the evidence
on the carrier’s delivery receipt, and above the carrier representave’s
signature. Call the distributor or dealer immediately, indicang that the
cabinet was damaged.
DANGER: Risk of Fire or Explosion due to Flammable Refrigerant Used.
Follow Handling Instrucons Carefully in Compliance with U.S. Government
Regulaons.
If no obvious crate damage is present, within two hours of receiving the
cabinet from the carrier, remove the packaging to inspect for concealed
damage.
1. If concealed damage is found, call the carrier immediately, save all
crang materials, and le the necessary freight claim with the carrier.
Check for accesories: Check that the shelves are inside the refrigerator,
including the four clips or supports for each shelf.
WARNING
• This appliance must be installed in accordance with all applicable naonal,
state, and local regulaons.
• Appliance is heavy. Use care when liing or posioning. Work in pairs
when needed to prevent injury or damage.
• Do not lt the appliance more than 45°.
Installaon instrucons

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HANDLING THE CABINET
1. Always move the unit in an upright posion. Do not set it on its side
or upside down as you may damage the cabinet and cause the oil to
migrate from the compressor.
2. If liing the unit, hold it from its base. It is recommended to use a dolly.
3. Do not let the unit fall abruptly.
4. Appliance is heavy. Use care when liing or posioning. Work in pairs
when needed to prevent injury or damage.
5. Do not li using the doors.
LOCATION
Select locaon
The proper locaon will ensure peak performance of your appliance. We
recommend a locaon where the unit will be out of direct sunlight and
away from heat sources. To ensure your product performs to specicaons,
the recommended installaon locaon temperature range is from 55 to
115° F (13 to 46°C).
Cabinet clearance
Venlaon is required from the boom front of the appliance. Keep this
area open and clear of any obstrucons. Adjacent cabinets and counter
top can be installed around the appliance as long as the front grille
remains unobstructed.
Front Grille
Do not obstruct the front grille. The openings within the front grille allow
air to ow through the condenser heat exchanger. Restricons to this air
ow will result in increased energy usage and loss of cooling capacity.
For this reason it is important this area not be obstructed and the grille
openings kept clean. It is not recommend the use of a custom made grille
as air ow may be restricted.
The base of the refrigerator has heavy duty leveling legs underneath so the cabinet
may be leveled appropriately and to allow room to clean beneath the cabinet.
Level the cabinet front to back and side to side with a level by using the adjustable
poron of the leveling legs.
LEVEL THE CABINET
To lower, turn
clockwise
Leveling leg
To raise, turn
counterclockwise
Cut the plasc straps.
REMOVE THE CRATE AND SKID
FIG. 2

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ELECTRICAL INSTALLATION
WARNING
• Electrical connecon must meet naonal, 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 specicaons. Failure to use
an independent power supply of proper capacity can result in a tripped
breaker, blown fuse, damage to exisng wiring, or component failure.
This could lead to heat generaon or re.
• THIS APPLIANCE MUST BE GROUNDED: This appliance is equipped with a
NEMA 5-15 three-prong grounding plug to reduce the risk of potenal
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 plug and do not use an adapter plug. Failure to follow
these instrucons may result in death, electric shock, or re.
• To reduce the risk of electric shock, do not touch the plug with damp
hands.
• Do not use an extension cord.
• 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 acons 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.
• The GREEN ground wire in the factory-installed power cord is connected
to the appliance. If it becomes necessary to remove or replace the power
cord, be sure to connect the power cord’s ground wire.
Electrical Connecon
• Usually an electrical permit and services of a licensed electrician are required.
• The maximun allowable voltage variaon is ± 10 percent of the nameplate
rang.
ATTENTION
Aer an interrupon of the electrical power supply, the
compressor will take approximately 3 minutes to start
working.

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1. Plug in the electrical cord of the unit to a wall outlet, following the
recommendaons about electrical installaon in this manual.
2. Allow the appliance to cool down to setpoint before loading with
product.
3. When placing products in the cooler, you should leave small gaps
between one and the other to assure free circulaon of air inside the
cabinet.
4. Do not leave the door open for extended periods of me, to avoid
increased temperature of the products.
The temperature of a cooler should be between 34°F to 40°F.
START UP THE COOLER
INSTALLING THE SHELVES
WARNING
Never try to move a loaded shelf, remove everything from the shelf
before moving. Use both hands when moving the shelf.
To add or remove a shelf
Remove stored product from the shelf. Do not try to remove a loaded
shelf from the appliance. Grasp the shelf front with both hands, rotate
the front upward and li out. Shelves and shelf clips are packed inside
the cabinet prior to shipment. Aer selecng the appropriate spacing
inside the cabinet, install shelf clips by inserng top of clip inside the
pilaster and then press the lower secon of the clip while pushing
inwards unl it snaps into place. Repeat unl all clips are in desired
locaon. Place shelf on clips checking that all four corners of shelves
are leveled and supported by the four shelf clips.
Loading ps and suggesons
Your appliance is equipped with a shelf system, composed of three
reinforced heavy duty shelves and twelve shelf clips (four per shelf), which
provides maximum adjustability.

13
DOOR REVERSAL
Step 1. Remove the four SC-48-SS screws and the Exterior top. See gure 3.
TOOLS
PHILLIPS # 2 SCREWDRIVER
Exterior top
SC-48-SS screw
(use screwdriver)
INSTRUCTIONS
FIG. 3
If you would like to reverse the door swing, follow the steps below.
Otherwise, skip to secon “Controls and adjustments”.

14
Step 2. While maintaining a hold on the door, remove the SC-48-SS screws,
the HA-609-SS Lower Hinge and the HA-608-SS Upper Hinge, then remove
the door. See gure 4.
Step 3. Remove the SC-50-SS screws, the HA-634-SS Door handle, and the
TA-14 Plasc plugs, then aach them to the opposite side. See gure 5.
SC-50-SS screw
(use screwdriver)
HA-608-SS
Upper Hinge
SC-48-SS Screw
(use screwdriver)
FIG. 4
FIG. 5
HA-609-SS
Lower Hinge
TA-14
Plasc plug
TA-14
Plasc plug
SC-50-SS screw
(use screwdriver)
Door handle

15
Step 5. Finally aach the Exterior Top. See gure 7.
Exterior Top
FIG. 6
FIG. 7
Step 4. Aach the Hinges to the le side of the cabinet. See gure 6.
HA-608-SS
Upper Hinge
HA-609-SS
Lower Hinge

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CONTROLS AND ADJUSTMENTS
DEFROST SELECTOR
STEPS TO CHANGE SETPOINT
1. To access the menu press the “Set” buon unl the value “0” is
displayed on the screen.
2. Release the “Set” buon.
3. Press the “Up” buon repeatedly unl the value 22 is displayed
on the screen. This is the password.
4. Push the “Set” buon once to access the menu.
5. When you access the menu the display shows the leers “PS”.
6. Press the “Up” buon repeatedly unl “St” appears in the
display, then press the “Set” buon.
7. The display shows the value of the current setpoint.
8. Change the value of the Set Point using the “Up” or “Down”
buon.
9. To save the new Set Point, press the “Set” buon unl the
display shows the current temperature.
NOTES:
- THE DEFAULT SET POINT IS 34°F.
- THE SET POINT RANGE IS FROM 28°F TO 40°F.
ALARM SAFETIES
Alarm signals are designed to protect the appliance and items inside. These
alarms give informaon or warnings in the event the appliance is operang out
of acceptable parameters. Should one of the alarms accur, follow the instrucons
below to address the alarm. The alarm icon appears on the display and the
alarm code alternates with the cabinet temperature. For high temperature, low
temperature, and door alarms, the appliance beeps in addion to displaying the
alarm icon and alarm code.

17
Note: The sound alarm can be turned off by pressing the red button
”set mute” on the right side of the display.
In case the alarm is not turned off by the actions suggested, or you
have any questions regarding the cooler performance, please contact
Hoshizaki Technical Support.
CONTROLLER DISPLAY
If the cabinet temperature is displayed, the cooler is working
properly; if an alarm code is displayed, see the information below
ALARM
INDICATES
WHAT TO DO?
DEFROST SELECTOR
Sound alarms off
set
m
u
t
e
Probe 1 error= control
Low temperature alarm
High temperature alarm
Defrost running
Check if the room probe is loose
Wait a few minutes to see if the
alarm ends, if the alarm persists,
call a certified service technician
Check if the compressor is running,
wait a few minutes to see if the alarm
ends, if the alarm persists, call a
certified service technician
Wait for the defrost to finish
EO
LO
I
F
H
ALARM INDICATORS
To obtain the name and phone number of your local Hoshizaki Cered Service
Representave, visit www.hoshizaki.com

18
CLEANING AND MAINTENANCE
INSTRUCTIONS
Before cleaning the appliance, turn o and unplug the appliance to prevent
electric shock by unexpected entrance of water into the appliance or injury by
moving parts.
Before cleaning the appliance, move all items into another refrigerator.
Do not splash water directly onto the appliance. This might cause short circuit,
electric shock, corrosion, or failure.
Before using a sanizer such as inert soap and sodium hypochlorite (chlorine
bleach), thoroughly read the manufacturer´s instrucons on its proper usage.
WARNING
To prevent damage to the plasc surfaces, do not use the following: thinner,
benzine, alcohol, petroleum, soap powder, polishing powder, alkaline cleaner,
acid, scouring pad and especially those strong cleaners for use on a venlang
fan or a cooking range. Also, to prevent corrosion, do not use sodium
hypochlorite (chlorine bleach) on the stainless steel surfaces.
Use a clean cloth for cleaning.
IMPORTANT
1. Exterior: Wipe the exterior occasionally with a clean, so cloth. Use a damp
cloth containing a neutral cleaner to wipe o oil or dirt buildup.
2. Cabinet Interior: Spills should be wiped up promptly to avoid unpleasant
odors. The cabinet interior should be cleaned periodically with a mild soap
or detergent and warm water.
3. Door Gasket: Door gasket should be cleaned regularly with mild soap and
warm water to remove dirt and grease.
4. Shelves: Remove and clean regularly.
Maintenance
Cleaning
• Unplug the appliance before performing maintenance to prevent electric
shock or injury by moving parts. To reduce the risk of electric shock, do
not touch the plug with damp hands.
• Before performing maintenance, move all foods into another clean
refrigerator.
WARNING
1. Condenser: Check the condenser once a year and use a brush or vacuum
cleaner to clean the condenser as required.
2. Power Supply Connecon: If the plug or power cord is damaged, contact
your local Hoshizaki Cered Service Representave immediately and ask
for repairs.
All other service should be performed in accordance with the Hoshizaki Service
Manual by a qualied service technician.

19
When preparing the appliance for disposal, remove the door to reduce the
risk of children geng trapped. Leave any shelves in place so that children
may not easily climb inside.
• Follow handling instrucons carefully in compliance with U.S. government
regulaons.
• Do not puncture refrigerant tubing. Risk of re or explosion due to
puncture of refrigerant tubing; follow handling instrucons carefully.
• Dispose of properly in accordance with federal or local regulaons.
DANGER
Risk of Fire or Explosion Flammable Refrigerant Used
WARNING
The appliance contains refrigerant and must be disposed of in accordance
with applicable naonal, state, and local codes and regulaons. Refrigerant
must be recovered by properly cered service personnel.
PREPARING THE APPLIANCE FOR PERIODS
OF NON-USE
DISPOSAL
When shung down the appliance for more than one week, follow the instrucons
below.
Shutdown and Long Storage
When preparing the appliance for long storage, prevent the door from closing
to reduce the risk of children geng trapped. Leave the shelves in place so
that children may not easily climb inside.
WARNING
When preparing the appliance for long storage, clean the cabinet interior,
door gaskets, and shelves.
IMPORTANT
1. Before shung down the appliance, move all items into another refrigerator.
2. Press and hold the power buon for 2 seconds to turn o the appliance.
3. Unplug the appliance. WARNING! To reduce the risk of electric shock, do not
touch the plug with damp hands.
4. WARNING! Prevent the door from closing to reduce the risk of children
geng trapped. Leave the shelves in place so that children may not easily
climb inside.

618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com
