HX Series
Refrigerated Medical Equipment
Models
Upright A
Instruction Manual
Issued: 11-17-2025
hoshizakiamerica.com
2
WARNING
Only qualied service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizakiamerica.com. No installation, operation, or
maintenance should be undertaken until the technician has thoroughly read this
Instruction Manual. No service should be undertaken until the technician has
thoroughly read the service manual available at www.hoshizakiamerica.com.
Likewise, the owner/manager should not proceed to operate the appliance until the
installer has instructed them on its proper operation. Failure to install, operate, and
maintain the appliance in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage. 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 .................................................................................................................... 10
A. Construction ............................................................................................................... 10
B. Electrical and Refrigerant Data ....................................................................................11
II. Installation Instructions .................................................................................................... 12
A. Location ...................................................................................................................... 12
B. Checks Before Installation ........................................................................................... 14
C. Setup ........................................................................................................................... 15
D. Electrical Connection .................................................................................................. 18
E. Final Checklist ............................................................................................................. 19
III. Operating Instructions ..................................................................................................... 20
A. Important Notes About Usage ..................................................................................... 20
B. Startup ........................................................................................................................ 22
C. Controls and Adjustments ........................................................................................... 25
1. Cabinet Temperature Setpoint ................................................................................ 25
2. Cabinet Temperature Differential and Range ......................................................... 25
3. Adjusting Temperature Setpoint ............................................................................. 26
4. Cabinet Temperature Display Scale ....................................................................... 27
D. Display Module Icons .................................................................................................. 28
E. Defrost ......................................................................................................................... 29
F. Product Storage ........................................................................................................... 31
G. Alarm Safeties ............................................................................................................. 32
H. Safety Devices ............................................................................................................ 33
I. Cooling Performance .................................................................................................... 33
J. Cabinet Condensation ................................................................................................. 33
IV. Cleaning and Maintenance Instructions .......................................................................... 34
A. Cleaning ...................................................................................................................... 34
B. Maintenance ................................................................................................................ 35
V. Preparing the Appliance for Periods of Non-Use ............................................................. 36
VI. Decommissioning and Disposal ..................................................................................... 37
VII. RTD1 Sensor Temperature Calibration and Certication Sheet .................................... 38
1. RTD1 Sensor Calibration ....................................................................................... 38
2. RTD1 Sensor Certication Sheet .......................................................................... 40
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.
• 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.
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.
DANGER
5
• 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).
• 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.
DANGER continued
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 block access to the power supply
cord or electrical outlet when positioning.
• THE APPLIANCE MUST BE
GROUNDED. The appliance is equipped
with a hospital-grade NEMA5-15
three-prong grounding plug (green
dot) to reduce the risk of potential shock
hazards. It must be plugged into a properly
grounded, independent 3-prong wall
outlet. If the outlet is a 2-prong outlet, it
is your personal responsibility to have
a qualied electrician replace it with a
properly grounded, independent 3-prong
wall outlet. Do not remove the ground
prong from the power cord and do not use
an adapter plug. Failure to follow these
instructions may result in death, electric
shock, or re.
• To reduce the risk of electric shock, do not
touch the power switch or plug with damp
hands.
• To reduce the risk of electric shock, make
sure the power switch is in the "OFF"
position before plugging in or unplugging
the appliance.
• Unplug the appliance before servicing.
• Do not use an appliance with a damaged
power cord. The power cord should not be
altered, jerked, bundled, weighed down,
pinched, or tangled. Such actions could
result in electric shock or re. To unplug
the appliance, be sure to pull the plug, not
the cord, and do not jerk the cord.
• Do not use an extension cord.
• If the supply cord is damaged, it must be
replaced by the manufacturer, its service
agent, or similarly qualied persons in
order to avoid a hazard.
Upon replacement, the GREEN ground
wire in the power cord must be connected
to the designated grounding screw.
• Do not make any alterations to the
appliance. Alterations could result in
electric shock, injury, re, or damage to
the appliance.
• Appliance is heavy. Use care when lifting
or positioning. Work in pairs when needed
to prevent injury or damage.
8
• 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.
• Be careful not to pinch ngers when
opening and closing the door. Be careful
when opening and closing the door when
children are in the area.
• Open and close the doors with care.
Opening the doors too quickly or forcefully
may cause injury or damage to the
appliance or surrounding equipment.
• Do not use combustible spray or place
volatile or ammable substances in or near
the appliance. They might catch re.
• Do not throw anything onto the shelves or
load any single shelf with more than 120 lb.
(54.5 kg) of product. They might fall off and
cause injury.
• This appliance is designed to CDC/VFC
guidelines for purpose-built refrigerated
storage equipment. Employ sanitary
methods.
• Do not store items above the "Load Limit"
label.
• Do not store items near air outlets.
Otherwise, items may freeze up and crack
or break contamination of other stored
items.
• Do not place any product on the oor of
the cabinet. All product must be placed on
properly installed shelves.
• Items to be placed between the raised rails
of the shelves. Do not allow items to be
placed outside of the shelf raised rails.
• Do not block air inlets or outlets, otherwise
cooling performance may be reduced.
• Do not tightly pack the cabinet. Allow some
space between items to ensure good air
ow.
• Do not put warm or hot products in the
cabinet. Let them cool rst, or they will
raise the cabinet temperature and could
deteriorate other items in the cabinet or
overload the appliance.
• Medical storage and product handling
must comply with applicable codes and
regulations.
• All products should be stored in sealed
containers. Otherwise product may
dry up, or increase the likelihood of
cross-contamination.
• Do not place more than 20 lb. (9 kg) on
the top panel. Items must be stable and
secure to prevent items from falling off of
the appliance.
• Care should be used when placing items
on top of the appliance. Do not store liquid
containers or items that could fall through
the louvers on top of the appliance.
This could cause electric shock or re.
WARNING continued
9
NOTICE
• Install the appliance in a location that stays
above freezing. Normal operating ambient
temperature must be within 45°F to 80°F
(7°C to 27°C).
• 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.
• Protect the oor when moving the
appliance to prevent damage to the oor.
• Do not allow the appliance to bear any
outside weight.
• Keep ventilation openings, in the appliance
enclosure or in the built-in structure, clear
of obstruction.
• Do not allow the appliance to bear any
outside weight.
• To prevent deformation or cracks, do not
spray insecticide onto the plastic parts or
let them come into contact with oil.
• To avoid damage to the gasket, use
only the door handle when opening and
closing.
10
I. Specications
A. Construction
RTD1 Sensor
Solid Door
Top Panel
Power Cord
Side Panel
Control Panel
Model Shown: HXR1A-FS
Defrost Thermistor Probe
Control Board
Compressor
Door Switch
Touchscreen
Control
Front Panel
Raised Rail
Shelves
Liquid Tight
Plug
Locking Casters
Non-Locking Casters
Power Switch
Evaporator
Fans
Control Panel
Touchscreen
Control
Control Board
RTD1 Sensor Board
Backup Battery
Pack
11
B. Electrical and Refrigerant Data
The nameplate provides electrical and refrigerant data and Year of Manufacture (YOM).
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.
Model Number HXR1A-FS/FG/FGE HXR2A-FS/FG/FGE
AC SUPPLY VOLTAGE ~115/60/1 ~115/60/1
AMPERES 5 8
DESIGN PRESSURE kPa (PSI) HI-2482 (360) LO-1310 (190) HI-2482 (360) LO-1310 (190)
REFRIGERANT g (oz.) R-290 130 (4.6) R-290 140 (4.9)
INSULATION BLOWING GAS HFO 1233zd(E) HFO 1233zd(E)
MINIMUM ROOM FLOOR AREA m² (ft² ) 6.2 (67) 6.7 (72.1)
VOLUME (AHAM) m³ (ft³)
0.65 (23.1) 1.43 (50.4)
USABLE VOLUME (AHAM) m³ (ft³)
0.36 (12.7) 0.72 (25.4)
Model Number HXF1A-FS/FG/FGE HXF2A-FS/FG/FGE
AC SUPPLY VOLTAGE ~115/60/1 ~115/60/1
AMPERES 9 9.5
DESIGN PRESSURE kPa (PSI) HI-2482 (360) LO-1310 (190) HI-2482 (360) LO-1310 (190)
REFRIGERANT g (oz.) R-290 115 (4.1) R-290 120 (4.2)
INSULATION BLOWING GAS HFO 1233zd(E) HFO 1233zd(E)
MINIMUM ROOM FLOOR AREA m² (ft² ) 5.5 (59.2) 5.7 (61.8)
VOLUME (AHAM) m³ (ft³)
0.65 (23.1) 1.43 (50.4)
USABLE VOLUME (AHAM) m³ (ft³)
0.36 (12.7) 0.72 (25.4)
Note: Normal operating ambient temperature for refrigerated medical equipment
refrigerators and freezers must be within 45°F to 80°F (7°C to 27°C).
Operation of the appliance, for extended periods, outside of these normal
temperature ranges may affect appliance performance.
Additional Data Items:
Overvoltage Category
Category II
Pollution Degree
2
RF Emissions
Group 1 - Class A
EMC Environment
Basic
12
II. Installation Instructions
A. Location
This appliance is approved for indoor use.
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)
HXR1A-FS/FG/FGE 130 (4.6) 6.2 (67)
HXF1A-FS/FG/FGE 115 (4.1) 5.5 (59.2)
HXR2A-FS/FG/FGE 140 (4.9) 6.7 (72.1)
HXF2A-FS/FG/FGE 120 (4.2) 5.7 (61.8)
≥ Area m
2
(ft
2
) (see "Minimum Room Floor Area" above)
≥ Supercie m
2
(pi
2
) (voir « Supercie Minimale du Local » ci-dessus)
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.
13
WARNING
• This appliance must be installed in accordance with all applicable national, state,
and local regulations.
• This appliance is intended for use in laboratories and medical facilities in
commercial, industrial, or institutional occupancies as dened in the Safety Standard
for Refrigeration Systems, ASHRAE 15.
• Appliance is heavy. Use care when lifting or positioning. Work in pairs when needed
to prevent injury or damage.
• Do not tilt the appliance more than 45°.
• Do not block access to the power cord electrical outlet when positioning.
NOTICE
• This appliance is not intended for outdoor use.
• Normal operating ambient temperature and humidity:
– Temperature: 45°F to 80°F (7°C to 27°C)
– Humidity: 20 to 60%
Operation of the appliance, for extended periods, outside of this normal temperature
range may affect appliance performance.
For best operating results:
• The appliance should not be located next to high heat producing equipment.
• The location should provide a rm and level foundation for the appliance.
• The appliance should not be located in a corrosive environment.
• The door of the appliance should not be blocked or prevented from opening.
• The appliance must be located in a position where the power cord is easily accessible
for unplugging the appliance from the electrical outlet.
• Minimum Clearance:
Models
Side Top Rear
All Reach-In Refrigerators and 1-Section Freezers 0" (0 cm) 0" (0 cm) 3" (8 cm)
2-Section Freezers 0" (0 cm) 10" (25 cm) 3" (8 cm)
14
Nameplate
B. Checks Before Installation
WARNING
Refer to the nameplate for electrical specications. The nameplate is located on
the right side wall of the cabinet interior. For more electrical connection details, see
"II.D. Electrical Connection." We reserve the right to make specication and design
changes without prior notice.
• Visually inspect the exterior of the shipping package and immediately report any damage
to the carrier. Upon opening the package, any concealed damage should also be
immediately reported to the carrier.
• Remove the shipping carton, tape, and packing material. Remove the protective plastic
lm from the exterior panels on all models and from the interior door panels on solid
door models. If the appliance is exposed to the sun or to heat, remove the lm after the
appliance cools.
• Remove all accessory containers before discarding the packing materials. Dispose of all
packing materials in a proper and environmentally responsible manner.
• Check for missing or damaged accessories.
Model Shown: HXR1A-FS
15
C. Setup
1. Caster or Optional 6 in. Leg Installation and Leveling the Appliance
a) Caster or Optional 6 in. Leg Installation
1) Move as close to the nal location as possible.
2) Remove the 2 bolts securing the appliance to the pallet, then remove the appliance
from the pallet. Block the appliance securely at a height of 8" (20cm) off the oor.
Do not lay the appliance down. NOTICE! Do not allow the door(s) to bear the weight
of the appliance.
a) Casters: Attach and tighten the casters to the bottom of the appliance. Locking casters
should be attached to the front of the appliance. See Fig. 1.
NOTICE! Ensure casters are completely threaded into appliance and tight.
b) Legs: Optional 6 in. legs available. Attach and tighten the optional adjustable 6 in. legs
to the bottom of the appliance.
WARNING
When using legs, avoid sliding the appliance across the oor after legs are installed.
b) Leveling the Appliance
After installing the casters or optional 6 in. legs, lower the appliance to the oor and
check the level of the appliance.
a) Casters: If the appliance is out of level, follow the instructions and steps found in
HS-3590 provided in the accessories bag. Otherwise, continue to the next section.
NOTICE! Make sure the casters are tight and no slack is left between the casters,
shim plates, and appliance.
b) Legs: If the appliance is out of level, turn the bottom portion of the leg for height
adjustment. Otherwise, continue to the next section. NOTICE! Make sure the legs are
tight and no slack is left between the leg and appliance.
2. Install the Shelves
Shelf support clips are provided in the accessory pack.
1) Place the shelf support clips into the pilasters (4 shelf
support clips per shelf). Indexing holes are provided on the
pilasters in evenly spaced intervals to assist in positioning
the support clips at the same height. See Fig. 2.
2) With the raised rail on top, place the shelves in position on
the shelf support clips.
Shelf Support Clip
Indexing
Holes
Pilaster
Shelf
Fig. 2
Front of Appliance
Locking Casters
Fig. 1
Raised
Rail
16
5. Backup Battery Connection
8 AA batteries may be installed to provide continuous recording of data during power
outage. They are not required for normal operation.
1) Remove the control panel, then being careful not to pull the wires, rotate the control
panel up on top of the top panel. See Fig. 4.
2) Remove the backup battery pack. See Fig. 5.
3) Install 8 AA batteries (not supplied with the appliance) into the backup battery pack.
4) Replace the battery backup pack and control panel in their correct positions.
3. Check the Refrigeration Circuit
1) Visually check that the refrigerant lines do not rub or touch other lines or surfaces and
that the condenser fan blade turns freely.
2) Check that the compressor is snug on all mounting pads.
4. Check the RTD1 (saturated cabinet resistance temperature detector) Sensor Housing
The control board monitors the RTD1 sensor temperature through the RTD1 sensor board
for more accurate and nite cabinet temperature control. Note: The RTD1 sensor does not
directly control component operation.
1) Visually check that the glycol solution has not leaked from the RTD1 sensor housing.
See Fig. 3.
2) Conrm that the RTD1 sensor housing is securely mounted in its location.
Fig. 3
RTD1 Sensor Housing
Fig. 4 Fig. 5
RTD1 Sensor Housing
Model Shown: HXR1A-FG
Model Shown: HXR2A-FG
Control Panel
Touchscreen Control
Control Board
RTD1 Sensor Board
Backup Battery Pack
Control Panel
Backup Battery Pack
17
6. Field Installed Monitoring Devices (if applicable)
This appliance is designed to allow for external on-site monitoring devices.
These monitoring devices may be installed through the liquid tight bushings
shown in Fig. 6. IMPORTANT! Field monitors must be placed on a shelf between the
raised rails.
1) Using a sharp object smaller in diameter than the monitoring device. Pierce the front
liquid tight bushing, then the rear liquid tight bushing.
2) Route the monitoring device through the liquid tight bushings. Note: Liquid tight
bushings provide closure around the monitoring device to insulate the holes. Food
grade silicone or refrigeration putty (not provided) may be used to ll any additional
openings around the cable.
3) Third party temperature probes must be mounted between the raised rails on the
shelves.
Fig. 6
Front Liquid Tight Bushing Rear Liquid Tight Bushing
Model Shown: HXR1A-FG
Mount Third Party Temperature
Probes Betweeen the Raised Rails
18
D. Electrical Connection
WARNING
• Electrical connection must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could result in death,
electric shock, serious injury, re, or severe damage to equipment.
• This appliance requires an independent power supply of proper capacity.
See the nameplate for electrical specications. Failure to use an independent
power supply of proper capacity can result in a tripped breaker, blown fuse,
damage to existing wiring, or component failure. This could lead to heat
generation or re.
• 115VAC Models: THIS APPLIANCE MUST BE GROUNDED: This appliance
is equipped with a hospital-grade NEMA 5-15 three-prong grounding plug
to reduce the risk of potential shock hazards. It must be plugged into a properly
grounded, independent 3-prong wall outlet. If the outlet is a 2-prong outlet, it
is your personal responsibility to have a qualied electrician replace it with a
properly grounded, independent 3-prong wall outlet. Do not remove the ground
prong from the plug and do not use an adapter plug. Failure to follow these
instructions may result in death, electric shock, or re.
• Do not use an extension cord.
• To reduce the risk of electric shock, do not touch the power switch or plug with
damp hands. Make sure the power switch is in the "OFF" position before plugging
in or unplugging the appliance.
• Do not use an appliance with a damaged power cord. The power cord should not
be altered, jerked, bundled, weighed down, pinched, or tangled. Such actions
could result in electric shock or re. To unplug the appliance, be sure to pull the
plug, not the cord, and do not jerk the cord. If the plug or power cord is damaged,
contact your local Hoshizaki service representative or local Hoshizaki distributor
immediately and ask for repairs.
• If the power cord is damaged, it must be replaced by the manufacturer, its service
agent, or similarly qualied persons in order to avoid a hazard.
• The GREEN ground wire in the factory-installed wire harness 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 to the GREEN designated grounding
screw.
• Usually an electrical permit and services of a licensed electrician are required.
• The maximum allowable voltage variation is ±6 percent of the nameplate rating.
19
E. Final Checklist
1) Is the appliance level?
2) Have the front casters been locked?
3) Is the appliance in a site where the ambient temperature is as specied below all year
around?
– All Models 45°F to 80°F (7°C to 27°C)
4) Have the minimum clearance requirements specied below been met?
Models Side Top Rear
Reach-In Refrigerators and Freezers
(Except 2-Section Freezers)
0" (0 cm) 0" (0 cm) 3" (8 cm)
2-Section Freezers 0" (0 cm) 10" (25 cm) 3" (8 cm)
5) Have the shipping carton, tape, and packing material been removed from the
appliance? Hasthe protective plastic lm been removed from the exterior panels on all
models and from the interior door panels on solid door models?
6) Have the appliance and accessories been checked for shipping damage?
7) Has the power supply voltage been checked or tested against the nameplate rating?
Is the power supply a properly grounded, independent wall outlet? Does the electrical
connection meet all national, state, and local code and regulation requirements.
8) Have the refrigerant lines been checked to make sure they do not rub or touch other
lines or surfaces? Has the condenser fan blade been checked to make sure it turns
freely? Is the compressor securely attached?
9) Have the shelves been properly installed with the raised rails on top?
10) If a 3rd party monitoring device is installed on the shelves, is it properly mounted
between the raised rails on the shelves?
11) 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?
12) Has the end user been given the name and telephone number of an authorized service
agent?
13) Has the warranty card been lled out and forwarded to the factory for warranty
registration?
14) Has the RTD1 sensor calibration certicate sheet located in the accessory bag, been
located and properly secured for future access?
20
III. Operating Instructions
R-290 Class A3 Flammable Refrigerant Used
DANGER
• 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
WARNING
• Only qualied service technicians should install and service the appliance.
• Wear appropriate personal protective equipment (PPE) when servicing the appliance.
• Failure to install, operate, and maintain the appliance in accordance with this manual
may adversely affect safety, performance, component life, and warranty coverage.
• To reduce the risk of electric shock, do not touch the power switch or plug with damp
hands.
• Do not splash, pour, or spray water directly onto or into the appliance. This might
cause short circuit, electric shock, corrosion, or failure.
• 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.
• Children should be properly supervised around the appliance.
• Do not climb, stand, or hang on the appliance or doors 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.
21
WARNING continued
• Open and close the doors with care. Opening the doors too quickly or forcefully may
cause injury or damage to the appliance or surrounding equipment.
• 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 equipment.
• Do not throw anything onto the shelves or load any single shelf with more than 120lb.
(54.5 kg) of product. They might fall off and cause injury.
• Do not place more than 20 lb. (9 kg) on the top panel. Items must be stable and
secure to prevent items from falling off of the appliance.
• Care should be used when placing items on top of the appliance. Do not store liquid
containers or items that could fall through the louvers on top of the appliance.
This could cause electric shock or re.
22
Fig. 7
POWER
OFF
ON
4A2196-011
Evaporator
Power Switch
Touchscreen
Display
Control Panel
B. Startup
RTD1 sensor calibration may be required. The RTD1 sensor is calibrated at the factory at
time of production. Due to delays between manufacturing date and install date, a
re-calibration may be required. Check the RTD1 Sensor Temperature Calibration
Certicate located in the accessory bag for this appliance's certication date. If a
certication certicate cannot be located, contact Hoshizaki America for calibration
data. If re-calibration and certication is required, see "VII. RTD1 Sensor Temperature
Calibration and Certication Sheet." Daily temperature readings are recorded from the
RTD1 sensor for managing cabinet temperature requirements.
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 plug with damp
hands.
IMPORTANT
At startup, there is a slight delay before the compressor starts.
1) Conrm the power switch is in the "OFF" position. See Fig. 7. Plug the appliance into the
electrical outlet. Move the power switch to the "ON" position.
IMPORTANT! Mullion, perimeter, and drain heaters energize once appliance is
plugged into the electrical outlet and remain energized even while the power
switch is in the "OFF" position. Appliance must be unplugged from the electrical
outlet to de-energize the heaters. Evaporator fan motors energize once the power
switch is moved to the "ON" position and remain energized until the door is
opened, defrost initiates, or the power switch is moved to the "OFF" position.
23
Touchscreen Setup View
Touchscreen Normal View
Fig. 8
2) Once the touchscreen setup view is visible, optional settings may be selected for
changes. See "III.C. Controls and Adjustments" for optional changes. If no changes are
needed, after 1 min., the touchscreen returns to normal view. See Fig. 8.
Allow the appliance to cool down prior to loading it with products.
Note: If an alarm is present (alarm icon lit), the touchscreen remains in setup view until
the alarm is cleared.
IMPORTANT
This appliance has been designed and preset to maintain temperatures that comply
with the NSF-456 Vaccine Storage standard. Modication to these preset values will
place the appliance in a non-compliance state with NSF-456 requirements.
Adjust the date or time as follows:
Alarm Icon
24
Fig. 10
Keypad
Desired Cell to Be Changed: Time
Checkmark Icon
Home Icon
Fig. 12
Touchscreen Setup View
Touchscreen Normal View
Fig. 11
Up and Down Arrows
5) Press the desired cell to be changed. See Fig. 10.
6) Use the keypad or scroll using the up and down arrows to input the desired setting.
7) Press the checkmark icon to save the new setting.
8) Press the home icon to return to the touchscreen setup view. See Fig. 11.
The touchscreen setup view returns to touchscreen normal view after 1 min.
See Fig. 12. Note: If an alarm is present (alarm icon lit), the touchscreen remains in
setup view until the alarm is cleared.
3) If the settings icon is not visible, press and release the center of the RTD1 sensor
temperature display. See Fig. 9.
4) Once visible, press the settings icon, then press the "Date/Time Settings" icon.
Fig. 9
Date/Time
Settings Icon
Settings Icon
Alarm Icon
RTD1 Sensor
Temperature
25
C. Controls and Adjustments
From the touchscreen setup view, operational icons and settings icons are shown.
Collecting data or making changes may be made by selecting the appropriate icon from
the touchscreen setup view. See Fig. 13.
Fig. 13
1. Cabinet Temperature Setpoint
The cabinet temperature setpoint is the value for the average cabinet temperature as
monitored by the RTD1 sensor and RTD1 sensor board. Note: The cabinet temperature
is controlled by the cabinet sensor; the RTD1 sensor does not control component
operation.
See the table below for default settings.
Model Default Temperature Setting Temperature Differential
HXR1A 41.0°F (5°C) ±2.0°F (±1.1°C)
HXR2A 41.0°F (5°C) ±2.4°F (±1.3°C)
HXF1A
HXF2A
-6°F (-21.1°C) ±2.4°F (±1.3°C)
2. Cabinet Temperature Differential and Range
HXR1A: The cabinet temperature differential for the compressor to turn on and off is
±2.0°F (±1.1°C) of the cabinet temperature setpoint. For example; HXR1A refrigerator
temperature setpoint of 41.0°F (5°C), the compressor comes on at 43°F (6.1°C), and the
compressor goes off at 39°F (3.9°C).
HXR2A, HXF1A, and HXF2A: The cabinet temperature differential for the compressor to
turn on and off is ±2.4°F (±1.3°C) of the cabinet temperature setpoint. For example; for
a HXF1A freezer temperature setpoint of -6°F (-21.1°C), the compressor comes on at
-3.6°F (-19.8°C), and the compressor goes off at -8.4°F (-22.4°C).
• For refrigerators, the temperature setpoint is adjustable between 30.0°F and 50.0°F
(-1.1°C and 10.0°C).
• For freezers, the temperature setpoint is adjustable between -10.0°F and +10.0°F
(-23.3°C and -12.2°C).
Min. and Max. Temp with
Date and Time Recorded
Current Date
and Time
Backup Battery Level
Settings Icon
Light Icon
Alarm Icon
Evaporator Fan Icon
Cooling Icon
Door Icon
RTD1 Sensor
Temperature
RTD1 Sensor
Temperature Graph and Storage Icon
Touchscreen
Display
Defrost Icon
Cabinet Sensor
Temperature
(cabinet)
26
3. Adjusting Temperature Setpoint
If necessary, adjust the cabinet temperature setpoint as follows:
IMPORTANT! Any modication to these preset values will place the appliance in a
non-compliance state with NSF-456 requirements.
1) Press and release the center of the RTD1 sensor temperature display. The touchscreen
setup view is shown. See Fig. 14.
2) Press and release the center of the RTD1 sensor temperature display again.
The temperature setting table is shown. See Fig. 15.
3) Press the User Set Point temperature cell. See Fig. 16.
4) Use the keypad or scroll using the up and down arrows to input the desired setting.
5) Press the checkmark icon to save the new cabinet temperature setpoint.
6) Press the home icon to return to the touchscreen setup view. See Fig. 17.
The touchscreen setup view returns to touchscreen normal view after 1 min.
See Fig. 18. Note: If an alarm is present (alarm icon lit) touchscreen remains in setup
view until alarm is cleared.
Fig. 14
RTD1 Sensor Temperature
Fig. 18
NOTICE! Do not adjust the temperature setpoint more than 2°F (1.1°C) at a time.
Allow the temperature to stabilize for a minimum of 8hours before making
further temperature setpoint adjustments.
Fig. 16 Fig. 17
Home Icon
Temperature Cell
Checkmark Icon
Touchscreen Setup View
Touchscreen Normal View
Temperature Setting Table
Fig. 15
Keypad
Up and Down Arrows
27
4. Cabinet Temperature Display Scale
The default cabinet temperature display scale is Fahrenheit °F, but can be changed to
Celsius °C.
To change the cabinet RTD1 sensor temperature display scale:
1) Press and release the center of the RTD1 probe temperature display. The touchscreen
setup view is shown. See Fig. 19.
2) Press and release the center of the RTD1 probe temperature display again.
The temperature setting table is shown. See Fig. 20.
Fig. 19 Fig. 20
RTD1 Sensor Temperature
Fig. 21
Temperature Setting Table
Unit F or C Cell
Checkmark Icon
Home Icon
Fig. 22
Fig. 23
Touchscreen Setup View Touchscreen Normal View
Up and Down Arrows
3) Press the Units F or C cell in the Units row. See Fig. 21.
4) Press the up arrow icon for Celsius C or Fahrenheit F.
5) Press the checkmark icon to save the new cabinet temperature display scale.
6) Press the home icon to return to the touchscreen setup view. See Fig. 22.
The touchscreen setup view returns to touchscreen normal view after 1 min.
See Fig. 23. Note: If an alarm is present (alarm icon lit) touchscreen remains in setup
view until alarm is cleared.
28
D. Display Module Icons
Control module icons inform you of energized components and if the appliance is in
alarm. See Fig. 24.
Control Module Icons
Icon Meaning
Door
Door open or closed.
Compressor
Compressor running. Cooling cycle.
Evaporator Fan Motor
Evaporator fan motor is running. Evaporator fan motor de-energizes when door is open.
Defrost
Appliance is in defrost cycle. See "III.E. Defrost" for details.
Alarm Triangle Symbol
Shaded (yellow highlight). Appliance is in alarm. See "III.H. Alarm Safeties" for details.
Light
Light on or off.
Product Graph Icon
System operation graph.
Settings Icon
User settings access.
Min. and Max. Temperature Display Reset Icon
Press to reset min. and max. temperature display. Note: To see the min. max. temperatures,
press the alarm icon to open the temperature display table.
Fig. 24
Cooling Icon
Alarm Icon
Defrost Icon
Light Icon
Graph Icon
Door Icon
Fan Motor Icon
Min./Max. Time
Reset Icon
Settings Icon
Backup Battery Icon
29
E. Defrost
DANGER
Risk of Fire or Explosion. Flammable Refrigerant Used.
• 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 instructions carefully.
Risque De Feu Ou D'Explosion. Le Frigorigène Est Inammable.
• Ne pas utiliser d'appareils mécaniques pour dégivrer le réfrigérateur.
• Ne pas perforer la tubulure contenant le frigorigène. Risque de feu ou d'explosion
si la tubulure contenant le frigorigène est perforée; suivre les instructions de
manutention avec soin.
1. Refrigerators
Refrigerators use a time-initiated, off-cycle defrost. Defrost occurs when either the
2-hr. cumulative compressor run timer terminates or the 2-hr. continuous compressor
run timer terminates. When either the 2-hr. cumulative compressor run timer or the 2-hr.
continuous compressor run timer terminates, defrost begins. The 1-hr. maximum defrost
timer starts. If energized, the compressor de-energizes and the evaporator fan motor
continues. The defrost icon is displayed during defrost. After the defrost thermistor warms
to 44°F (6.6°C) or 1 hr. maximum defrost timer terminates, defrost terminates. The defrost
icon turns off and the compressor energizes. Note: If the defrost thermistor is above 50°F
(10°C) the evaporator fan motor de-energizes until the defrost thermistor drops to 49°F
(9°C).
2. Freezers
Freezers use a time-initiated, heated defrost. Defrost occurs when either the 5-hr.
cumulative compressor run timer terminates or the 5-hr continuous compressor run timer
terminates. When either the 5 hr. cumulative compressor run timer or the 5-hr continuous
run timer terminates, defrost begins. The 1-hr. maximum defrost timer starts. If energized,
the compressor and evaporator fan motor de-energize. The defrost icon is displayed
during defrost. After the defrost thermistor warms to 77°F (25°C) or the 1 hr. maximum
defrost timer terminates, defrost terminates (defrost heater de-energizes). A 3-min.
compressor delay timer starts. Once the 3-min. compressor delay timer terminates, the
compressor energizes and a 4-min. max. evaporator fan motor delay timer (drip time)
starts. If the defrost thermistor cools to 32°F (0°C) before the 4-min. evaporator fan motor
delay timer terminates, the evaporator fan motor will energize. If the evaporator fan motor
has not started and the 4-min. evaporator fan motor delay timer (drip time) terminates,
the evaporator fan motor energizes. Note: If the defrost thermistor is above 32°F (0°C)
when the 4-min. evaporator fan motor delay timer (drip time) terminates, the evaporator
fan motor de-energizes until the defrost thermistor drops to 32°F (0°C).
FREEZER DATA PENDINGFREEZER DATA PENDING
30
3. Manual Defrost Initiation
1) Press the settings icon. See Fig. 25. User Settings display appears.
2) Press the Manual Defrost icon. See Fig. 26. Defrost icon turns orange and defrost
initiates.
3) Press the Home icon in the lower right hand corner of the display module.
Settings Icon
Fig. 25
Fig. 26
Fig. 27
Home Icon
Defrost Icon
Defrost Icon
Defrost Icon
4) Defrost engaged and defrost icon illuminated. See Fig. 27.
31
F. Product Storage
WARNING
• This appliance is designed to CDC/VFC guidelines for purpose-built refrigerated
storage equipment. Employ sanitary methods.
• All items must be stored on the shelves within the raised rails.
• Do not block the cabinet air inlet or outlet, or the space outside the shelves,
otherwise cooling performance may be reduced.
• Do not tightly pack the cabinet, refer to load limit label. Do not place items
above the "Load Limit" label. Allow some usable space between items to ensure
acceptable temperature range and air ow. Also allow usable 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 items in the cabinet. Let them cool rst, or they will raise
the cabinet temperature and could deteriorate other items in the cabinet or
overload the appliance.
• All items should be stored in sealed containers. Otherwise items may dry up,
cause frost to develop, result in poor appliance performance, or increase the
likelihood of cross-contamination. Certain product ingredients, if not stored in
sealed containers, may accelerate corrosion of the evaporator, resulting in failure.
• Do not store items near the air outlet. They might freeze up and crack or break
causing a risk of injury or contamination of other items.
IMPORTANT
This appliance has been designed and preset to maintain temperatures that
comply with the NSF-456 Vaccine Storage standard. Any modication to these
preset values will place the appliance in a non-compliance state with NSF-456
requirements.
32
G. Alarm Safeties
Alarm signals are designed to protect the appliance and product. These alarms give
information or warnings in the event the appliance is operating out of acceptable
parameters. Alarm status can be viewed by pressing the alarm icon. See Fig. 28.
Alarm Icon
Non-Alarm Condition
Low Battery Alarm Engaged
Probe Sensor Temperature Sensor
Probe 1 RTD1 Sensor
Probe 2 Cabinet Thermistor
Probe 3 Defrost Thermistor
Fig. 28
Fig. 29
Normal operation is shown with a green "Checkmark." See Fig. 29.
A fault issue is shown with a yellow "Exclamation Mark" and a red "X" on the right hand
side. To reset, press and hold the red "X" until the "Exclamation Mark" returns to the
"Checkmark".
33
H. Safety Devices
1. Compressor External or Internal Overload
If combined temperature/amperage value is above the limit specied by the
compressor manufacturer, the compressor overload operates independently to turn
off the compressor. The compressor overload de-energizes the compressor until the
temperature/amperage value returns to an acceptable level.
2. Short-Cycle Protection
There is a 2-minute minimum off-time and on-time for the compressor.
Note: Time may vary with compressor overload or high-pressure switch activation.
3. High-Pressure Switch
If pressure on the high-side of the appliance exceeds Hoshizaki specications, the
high-pressure switch activates and interrupts the compressor circuit, de-energizing the
compressor until the pressure returns to an acceptable level.
I. Cooling Performance
Be sure the appliance is properly installed and located for optimum cooling performance.
If cooling performance is not at its optimum level, check the following items:
• Door(s) opened too often.
• Door(s) left open. Close.
• Dirty air lter and/or condenser. Clean.
• Cabinet too tightly packed or cabinet air inlet/outlet blocked. Allow some space between
items to ensure good air ow.
• Warm or hot items inside. Take them out until they cool down.
• Ambient temperature too high. Avoid installation near high heat producing equipment or
exposure to direct sunlight.
• Appliance in defrost cycle. The cabinet temperature may rise temporarily during the
defrost cycle, but this will not affect the product inside.
• 3rd party eld installed monitoring device cable access not properly sealed at rear of
appliance.
J. Cabinet Condensation
In the event condensation develops on the cabinet exterior, check the following items:
• Door(s) left open. Close.
• Ambient humidity too high. In high humidity areas it may be necessary to wipe off the
cabinet exterior occasionally.
34
IV. Cleaning and Maintenance Instructions
A. Cleaning
WARNING
• Before cleaning the appliance, move all product into another clean refrigerator or
freezer.
• Before cleaning the appliance, move the power switch to the "OFF" position.
Unplug the appliance to prevent electric shock by unexpected entrance of water
into the appliance or injury by moving parts. To reduce the risk of electric shock,
do not touch the power switch or plug with damp hands.
• Do not splash water directly onto the appliance. This might cause short circuit,
electric shock, corrosion, or failure.
• Carefully follow instructions provided with cleaning and sanitizing products.
NOTICE
• To prevent damage to the plastic surfaces, do not use the following: hot water,
thinner, benzine, alcohol, petroleum, soap powder, polishing powder, alkaline
cleaner, acid, scouring pad.
• To prevent corrosion and damage to stainless steel surfaces, use only products
formulated for use on stainless steel appliances. Do not use steel wool, abrasive
products, or products containing sodium hypochlorite (chlorine bleach).
• Use a clean cloth for cleaning.
1. Exterior
Wipe the exterior occasionally with a clean, soft cloth. Use a damp cloth containing
a neutral cleaner to wipe off oil or dirt buildup. Clean any rust colored spots using a
non-abrasive cleanser.
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. NOTICE! Do not
use hot water to clean the cabinet interior.
3. Door Gaskets
Door gaskets should be cleaned regularly with mild soap and warm water to remove dirt
and grease.
4. Shelves
Remove and clean regularly.
5. Glass Door
Wipe occasionally with a clean, soft cloth. Use a damp cloth containing a neutral cleaner
to wipe off oil or dirt buildup.
6. Touchscreen
Use a clean cotton cloth to wipe the touchscreen clean.
35
B. Maintenance
The appliance must be maintained in accordance with the instruction manual. Consult
with your local Hoshizaki Certied Service Representative about maintenance service.
Failure to maintain the appliance in accordance with this manual may adversely affect
safety, performance, component life, and warranty coverage.
WARNING
• Only qualied service technicians should service the appliance.
• Before performing maintenance or troubleshooting, move all product into another
clean refrigerator or freezer.
• Move the power switch to the "OFF" position. Unplug the appliance before
performing maintenance or troubleshooting to prevent electric shock or injury by
moving parts. To reduce the risk of electric shock, do not touch the power switch
or plug with damp hands.
1. Air Filter
Check the air lter at least twice a month. When clogged, use warm water and a neutral
cleaner to wash the lter.
2. Condenser
The condenser must be cleaned at least once a year. More frequent cleaning may be
required in some conditions. Use a brush or vacuum cleaner to clean the condenser as
required.
3. Condensate Wick
The condensate wick must be cleaned at least once a year. More frequent cleaning may
be required in some conditions to maintain proper ow. Follow the steps below.
1) Move the power switch to the "OFF" position.
Unplug the appliance from the electrical outlet.
WARNING! To reduce the risk of electric
shock, do not touch the power switch or plug
with damp hands.
2) Remove the wick from the retainers. See Fig. 30.
3) Clean or replace the wick. NOTICE! If the wick is
clogged/deteriorating, replace.
4) Replace the wick in its correct position.
NOTICE! Be sure the wick is positioned into
the condensate pan.
5) Plug the appliance back in. Move the power switch
to the "ON" position.
4. Power Supply Connection
If the power cord is damaged, it must be replaced by the manufacturer, its service agent,
or similarly qualied persons in order to avoid a hazard.
All other maintenance or service on this appliance should be performed in accordance
with the Hoshizaki Service Manual by a qualied service technician.
Fig. 30
Wick
Retainer
Retainer
Retainer
Retainer
Wick
36
Fig. 31
Power Switch
POWER
OFF
ON
4A2196-011
Power Cord
V. Preparing the Appliance for Periods of Non-Use
When shutting down the appliance for periods of non-use, follow the instructions below.
WARNING
• Prevent the doors from closing to reduce the risk of children getting trapped.
• To reduce the risk of electric shock, do not touch the power switch or plug with
damp hands.
NOTICE
Clean the appliance. See "IV.A. Cleaning" for details.
1) Before shutting down the appliance, move the stored items into another refrigerator or
freezer.
2) Move the power switch to the "OFF" position, then unplug the appliance from the
electrical outlet. See Fig. 31.
IMPORTANT! Perimeter, mullion, and drain heaters (drain heater on freezer models
only), energize once appliance is plugged into the electrical outlet and remain
energized even while the power switch is in the "OFF" position. Unplug the
appliance from the electrical outlet to de-energize
the heaters.
37
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 U.S. government
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 De Feu Ou D'Explosion. Le Frigorigène Est Inammable.
• 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.
WARNING
Remove the door to reduce the risk of children getting trapped. Leave the shelves in
place so that children may not easily climb inside.
38
VII. RTD1 Sensor Temperature Calibration and Certication Sheet
For this appliance to conform with the NSF-456 vaccine storage standard, the RTD1
sensor must be calibrated from the factory at time of construction and re-calibrated
based on the re-calibration due date. Hoshizaki America has calibrated and recorded the
calibration data during manufacturing and the calibration certication is available in the
accessory bag of this appliance. The factory calibration date is effective for 2 years from
time of manufacturing date. Re-calibration is required at the end of the 2 years from the
manufacturing date, then every year thereafter to conform with the NSF-456 certication.
The end user is responsible for all re-calibration updates. Upon the required calibration
due date, follow the calibration instructions below. After re-calibrating, update and record
the data on the RTD1 sensor certication sheet provided in this manual. Make copies of
the certication sheet for future re-calibration updates. If assistance in needed during
re-calibration, contact Hoshizaki America Technical Support.
1. RTD1 Sensor Calibration
Certify the RTD1 Sensor for NIST.
The touchscreen display must be showing the cabinet temperature in the Celsius °C
temperature scale during re-calibration procedures. See "III.C.4. Cabinet Temperature
Display Scale" to adjust from the Fahrenheit scale °F to the Celsius °C scale. Once in the
Celsius °C scale, follow the steps below.
1) Remove the RTD1 sensor tube.
2) If not already plugged into the electrical outlet, plug the appliance into the electrical
outlet.
3) Move the power switch to the "ON" position.
4) Prepare an ice bath (ice melting point test). Select a container large enough to hold the
RTD1 sensor tube, ice, and water. Fill the container with ice. Next, ll the container to
an 80% level with distilled or deionized water.
5) Place and secure the RTD1 sensor tube into the center of the container. Be sure the
RTD1 sensor tube cannot touch the sides.
6) Place a small nal layer of ice over the RTD1 sensor tube and container of ice to create
a thermal barrier.
7) Allow the display to come to equilibrium with a realization temperature of the ice melting
point (0.0°C). If the display shows 0.0°C or a value within the ± 0.5°C tolerance level,
proceed to step 8. Otherwise, follow the procedure below to calibrate the RTD1 sensor.
a) Press the touchscreen to view the setup menu.
b) Press the gear motor icon on the right side of the display.
c) Press the double gear icon in the lower right corner.
d) Enter the pass code 9999 then press the check mark icon.
e) Press the "Probe Calibration" icon.
f) Press the P4-RTD #1 "OFF SET" temperature cell (number).
Number highlights in blue.
g) Press the up or down arrow to adjust to the correct offset needed to achieve 0.00°C
h) Press the check mark on the bottom row.
i) Press the Home icon in the lower right hand corner. Calibration is complete.
j) Continue to step 8.
39
8) Move the power switch to the "OFF" position.
9) Remove the RTD1 sensor from the ice bath. Wipe the RTD1 sensor off with a dry towel.
Replace and secure the RTD1 sensor in its correct position.
10) Record the service company, date, time, and recorded value during calibration on the
certication sheet provided with this appliance.
11) Return to "III.B Startup."
40
2. RTD1 Sensor Certication Sheet
Model Number:
Serial Number:
Factory Calibration Date:
Re-Calibration Due Date:
Please note that after the factory calibration is complete, the RTD1 sensor must be re-calibrated every year thereafter.
0°C reading required (±0.5°C) for re-calibration annual certification
Calibration Touchscreen Display Reading
Sensor Cal .Date Next Cal.
Ice Bath
Temperature (°C)
Offset °C
From 0°C
Adjusted
Temperature (°C)
RTD1 Sensor
Calibrated by:
Method:
Calibration of the RTD1 sensor is traceable to NIST (National Institute of Standards and Technology).
Ice Bath - See Instruction Manual for Details
Re-Calibrated
Pass (Y/N)
Tolerance (±0.5°C)
NSF-456 Temperature Calibration Certification
HOSHIZAKI AMERICA
41
618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A8119-010
