Hoshizaki PR46AD2, PR93AD4, PR46A, PR67AD2, PR67A User Manual

Instruction Manual

Steelheart Series
Refrigerated Kitchen Equipment

Models
Refrigerated Prep Table with Raised Rail

hoshizakiamerica.com

Issued: 11-1-2018

WARNING

Only qualied service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizaki.com. No installation or service should be
undertaken until the technician has thoroughly read this Instruction Manual.
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 may 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 qualied service technicians in the
installation, 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: [phone]
Fax: [phone]

E-mail: [e-mail]

618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department

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.

2

IMPORTANT

This manual should be read carefully before the appliance is installed and operated.
Read the warnings and guidelines contained in this booklet carefully as they
provide essential information for the continued safe use and maintenance of the
appliance. Retain this booklet for any further reference that may be necessary.

CONTENTS

Important Safety Information ................................................................................................. 4

I. Installation Instructions ....................................................................................................... 8

A. Location ........................................................................................................................ 8

B. Checks Before Installation ............................................................................................. 9

C. Setup ............................................................................................................................. 9

D. Door Reversal.............................................................................................................. 13

E. Door/Drawer Reversal ................................................................................................. 17

F. Electrical Connection ................................................................................................... 24

G. Final Checklist ............................................................................................................ 25

II. Operating Instructions ...................................................................................................... 26

A. Important Notes About Usage ..................................................................................... 26

B. Startup ........................................................................................................................ 29

C. Controls and Adjustments ........................................................................................... 29

1. Temperature Display ............................................................................................... 29

2. Adjusting the Temperature Setpoint and Rail and Cabinet Cooling ....................... 30

3. Changing the Temperature Display Scale (°F or °C) ............................................. 31

D. Control Module Icons .................................................................................................. 31

E. Defrost ......................................................................................................................... 32

F. Alarm Safeties .............................................................................................................. 33

G. Food Storage .............................................................................................................. 34

H. Safety Devices ............................................................................................................ 34

I. Cooling Performance .................................................................................................... 35

J. Cabinet Condensation ................................................................................................. 35

III. Cleaning and Maintenance Instructions .......................................................................... 36

A. Cleaning ...................................................................................................................... 36

1. Exterior ................................................................................................................... 36

2. Cabinet Interior ...................................................................................................... 36

3. Door/Drawer Gaskets ............................................................................................ 36

4. Shelves .................................................................................................................. 36

5. Drawers .................................................................................................................37

6. Cutting Board .........................................................................................................37

7. Pans ....................................................................................................................... 37

8. Rail, Rail Dividers, and Rail Cover ......................................................................... 37

9. Rail Air Duct ........................................................................................................... 38

B. Maintenance ................................................................................................................ 39

1. Condenser .............................................................................................................. 39

2. Condensate Drain .................................................................................................. 40

3. Power Supply Connection ...................................................................................... 40

IV. Preparing the Appliance for Periods of Non-Use ............................................................ 41

V. Disposal ........................................................................................................................... 42

3

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.

DANGER

WARNING

NOTICE

IMPORTANT

Indicates a hazardous situation that, if not avoided, will result in
death or serious injury.

Indicates a hazardous situation that, if not avoided, could result
in death or serious injury.

Indicates a situation that, if not avoided, could result in damage
to the appliance or property.

Indicates important information about the use and care of the
appliance.

DANGER

Risk of Fire or Explosion

Flammable Refrigerant Used

• Follow handling instructions carefully
in compliance with U.S. government
regulations.

• 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.

• Component parts shall be replaced with
like components.

• Servicing shall be done by factory
authorized service personnel to minimize
the risk of possible ignition due to
incorrect parts or improper service.

• Consult instruction manual/service manual
before attempting to install or service this
product. All safety precautions must be
followed.

• Dispose of properly in accordance with
federal or local regulations.

• Do not place any potential ignition sources
in or near the appliance.

Risque De Feu Ou D'Explosion

Le Frigorigène Est Inammable

• Suivre attentivement les instructions
de manipulation conformément à la
réglementation gouvernementale.

• 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.

• Les pièces des composants doivent être
remplacées par des pièces et accessoires
équivalents.

• L’entretien doit être effectué par le
personnel de service autorisé par le
fabricant an de minimiser les risques
d’inammation attribuables à l’installation
d’une pièce inadéquate ou à la mauvaise
exécution du service.

• Consulter le manuel du propriétaire/
guide de réparation avant de tenter une
réparation. Toutes les mesures de sécurité
doivent être respectées.

• Éliminer conformément aux règlements
fédéraux ou locaux.

• Ne placez aucune source d’inammation
potentielle dans ou près de l’appareil.

4

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.

To reduce the risk of death, electric
shock, serious injury, or re, follow
basic precautions including the
following:

• Only qualied service technicians should
install and service the appliance.

• 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.

• Appliance is heavy. Use care when
lifting or positioning. Work in pairs when
needed to prevent injury or damage. Do
not lift using the top section or the doors/
drawers.

• To reduce the risk of electric shock, do not
touch the plug with damp hands.

• Unplug the appliance before servicing.

• The appliance requires an independent
power supply of proper capacity. See the
nameplate for electrical specications.
Failure to use an independent power
supply of proper capacity can result in a
tripped breaker, blown fuse, damage to
existing wiring, or component failure. This
could lead to heat generation or re.

• THE APPLIANCE MUST BE
GROUNDED. The appliance is equipped

with a NEMA5-15 three-prong grounding
plug
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 qualied electrician replace it with a
properly grounded, independent 3-prong
wall outlet. Do not remove the ground
prong from the power cord and do not use
an adapter plug. Failure to follow these
instructions may result in death, electric
shock, or re.

• Do not use an extension cord.

• 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.

• 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 alterations to the
appliance. Alterations could result in
electric shock, injury, re, or damage to
the appliance.

• 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.

to reduce the risk of potential

5

WARNING, continued

• Children should be properly supervised
around the appliance.

• Do not climb, stand, or hang on the
appliance or doors/drawers 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/drawers
or rail cover (prep table models) or when
handling food pans. Be careful when
opening and closing the doors/drawers or
rail cover when children are in the area.

• Open and close the doors/drawers and
rail cover with care. Opening the doors/
drawers or rail cover 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 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. Also allow space between items and
interior surfaces.

• 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.

• Food storage and handling must comply
with applicable codes and regulations.

• All foods should be wrapped in plastic 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-contamination.
Certain dressings and food ingredients,
if not stored in sealed containers, may
accelerate corrosion of the evaporator,
resulting in failure.

• Do not store items near air outlets.
Otherwise, items may freeze up and
crack or break causing a risk of injury or
contamination of other food.

• 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.

• Do not load any single drawer with more
than 75 lb. (34 kg) of product. Depending
on the weight of product in the drawers,
secure the unit as necessary to prevent it
from overturning. Do not open more than
one drawer at a time.

• The appliance is designed only for
temporary storage of food. Employ sanitary
methods. Use for any other purposes (for
example, storage of chemicals or medical
supplies such as vaccine and serum)
could cause deterioration of stored items.

6

WARNING, continued

Additional Warnings for Prep Table
Models

• The entire rail must always be covered
by rail dividers and pans. Otherwise, the
appliance will not cool properly. Use only
pans up to 6"(15cm) deep.

Do not use damaged rail dividers or pans.

• Ingredients must be pre-chilled to 37°F
(3°C) or less before placing in rail.

• Keep the rail cover closed when not actively
preparing food.

• The rail is for keeping ingredients cool while
preparing food. If not actively preparing
food for a long period such as overnight,
seal pans with plastic wrap in addition
to closing the rail cover. Depending on
conditions, the cabinet temperature setting
may need to be adjusted to prevent items
from freezing. Alternatively, seal ingredients
and store them in a refrigerator or freezer.

• For PR46(-D) models, the anti-tip bracket
must be properly installed and adjusted.
Otherwise, the unit may tip, resulting in
injury or damage.

NOTICE

• Protect the oor when moving the
appliance to prevent damage to the oor.

• Keep ventilation openings, in the
appliance enclosure or in the built-in
structure, clear of obstruction. Do not
place anything on top of the appliance in
an undercounter installation. There must
be at least 1.5" (4 cm) overhead clearance
for proper ventilation. The factory-installed
rear bumpers must be in place to ensure
proper rear clearance. Blockage of airow
could negatively affect performance and
damage the appliance.

• 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/drawer handle when opening
and closing.

• Do not leave the doors/drawers open.

• To avoid damage to the top seal, do not lift
the appliance by the top panel or remove
the top panel.

• Do not place anything on top of the rail
hood or rail cover and do not lift the
appliance by the rail hood or rail cover.
The rail hood and rail cover are not
designed to bear any outside weight.

• Do not place anything on the air duct
panels beneath the pans in the rail.
The air duct panels are not load-bearing.

7

I. Installation Instructions

WARNING

• The appliance must be installed in accordance with all applicable national, state,
and local regulations.

• Appliance is heavy. Use care when lifting or positioning. Work in pairs when needed
to prevent injury or damage. Do not lift using the refrigeration area, the top section,
or the doors/drawers.

• Do not tilt the appliance more than 45°.

A. Location

WARNING

• The appliance is not intended for outdoor use.

• Certied to maintain NSF temperatures between 45°F to 86°F (7°C to 30°C).
Engineered to maintain NSF temperatures up to 100°F (38°C).

• Operation of the appliance, for extended periods, outside of these temperature
ranges may affect appliance performance.

For best operating results:

• The appliance should not be located next to ovens, grills, or other high heat producing
equipment.

• The location should provide a rm and level foundation for the appliance.

• The appliance should not be located in a corrosive environment.

• Allow 1" (3 cm) clearance at sides for proper air circulation. The factory-installed rear
bumpers must be in place to ensure proper rear clearance. A minimum of 10"(25cm)
clearance above the rail should be provided to allow the rail cover to open.

8

B. Checks Before Installation

WARNING

Refer to the nameplate for electrical specications. The nameplate is located on
the right side wall of the cabinet interior. For more electrical connection details, see
"I.F. Electrical Connection." We reserve the right to make specication and design
changes without prior notice.

Nameplate

• 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. Also remove the protective
plastic lm from both the exterior panels and the interior door/drawer panel. 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.

C. Setup

1. Remove the Appliance from the Pallet

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" (20 cm) off the oor.

NOTICE! Do not place blocks under the refrigeration area or doors/drawers of the
appliance. Do not lay the appliance down.

3) Attach 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.

Door

Fig. 1

9

Locking Casters in Front

2. Check the Refrigeration Circuit

Visually check that the refrigerant lines do not rub or touch other lines or surfaces and
that the condenser fan blade turns freely.

3. Position the Appliance and Lock the Front Casters

The front casters on the appliance are lockable. After positioning the appliance in its nal
location, lock the front casters.

4. For PR46(-D) Models, Install the Anti-Tip Bracket

1) Attach the anti-tip bracket to the bottom of the appliance with the two 4×8 T2 screws
provided. See Fig. 2.

2) Adjust the leg on the anti-tip bracket. The maximum gap between the leg and the oor
is 1/2" (13 mm) WARNING! The anti-tip bracket must be properly installed and

adjusted. Otherwise, the unit may tip, resulting in injury or damage.

4×8 T2 Screws

Anti-Tip Bracket

Adjust Leg
Maximum Gap
Between Leg and
Floor is 1/2" (13 mm)

Fig. 2

5. Install the Shelves

1) For each shelf, place the shelf support clips into the pilasters at the desired height
(4 shelf support clips per shelf). See Fig. 3.

2) Place the shelves in position on the support clips.

Shelves

Shelf
Support Clip

Fig. 3

Pilaster

10

6. Conrm Rail Cover Operation

The rail cover's rear pins are inserted into the rear slots on both brackets. Use the rail
cover's front pins and the notches on the brackets to place the rail cover in the open
position. You can use either set of notches. The hollow side of the rail cover faces down.
See Fig. 4. WARNING! When the rail cover is open, make sure the rear pins on both

sides of the rail cover are securely in the rear slots and the front pins are resting
securely in the notches. Otherwise, the rail cover could close suddenly and cause
injury.

Rail Cover

Notches

Rear Slot

Rear Pin

Front Pin

Fig. 4

7. Conrm Rail Dividers and Pans are in Place

Conrm rail dividers and 1/3 size pans included with the appliance are in place.
See Fig.5.

• The entire rail must always be covered by rail dividers and pans. Otherwise, the
appliance will not cool properly.

• Use only pans up to 6"(15cm) deep. Do not use damaged rail dividers or pans.

• Wash the pans before use.

• At startup, leave the pans empty until the appliance cools down.

• On some models, an extra rail divider is included. Use the extra rail divider if a gap
remains after all pans and all other rail dividers are in place. Some pans on the market
are slightly larger and do not require the extra rail divider.

Pans

Rail Dividers

Fig. 5

11

8. Attach the Cutting Board

1) Loosen, but do not remove, the screws securing the cutting board brackets. See Fig. 6.

2) Slide the cutting board under the cutting board brackets, then tighten the screws.

WARNING! Make sure the cutting board brackets and cutting board are secure.
Otherwise, the cutting board could come off and cause injury.

Note: Wash the cutting board before use.

Cutting Board Brackets

Cutting Board

Fig. 6

12

D. Door Reversal

The appliance is provided with a cabinet design which, after being delivered to the
installation location, permits changing of the door swing from left to right or right to left. To
change the door swing, follow the steps below. Example shows change from right hinged
to left hinged.

WARNING

• Wear proper PPE (personal protection equipment) when executing these

procedures (safety glasses and gloves).

• Keep ngers away from edge of upper hinge bracket. Spring cartridge can cause

the upper hinge bracket to move suddenly with extreme force.

Door and Lower Hinge Removal and Relocation

1) Remove all items from the appliance. Make sure the appliance is unplugged from the
electrical outlet. Move the appliance out for ease of access then lock the casters.

2) With the door closed, loosen, but do not remove, the upper hinge bracket outer screw.
See Fig. 7. Next, open the door to the fully open position and remove the upper hinge
bracket inner screw. See Fig. 8.

3) Slide the upper hinge bracket out from under the outer screw and remove the door.

WARNING! Keep away from upper hinge bracket. Upper hinge bracket may spring
closed.

4) Replace the upper hinge bracket inner screw in its original position and tighten, then
tighten the upper hinge bracket outer screw.

WARNING! Upper
hinge bracket may
spring closed

Upper Hinge
Bracket

Upper Hinge Bracket
Outer Screw

Door Closed

Fig. 7

Upper Hinge
Bracket Inner
Screw

Door Fully Open

Upper Hinge Bracket

Fig. 8

5) Remove the lower hinge bracket. See Fig. 9. Be sure to leave the thrust washer in place.

6) Clear the foam from the lower hinge bracket mounting holes prior to securing lower
hinge bracket in its new location. Install the lower hinge bracket in its new location. Be
sure the lower hinge bracket is pushed all the way in and the thrustwasher is in its
original position.

Lower Hinge

Thrust
Washer

Bracket
Mounting Holes

Lower Hinge Bracket

Thrust Washer

Fig. 9

Bolts

13

Lower Hinge Bracket

Fig. 10

Bolts

Upper Hinge Bracket Removal and Spring Cartridge Relocation

7) While preventing the upper hinge bracket from rotating, remove the upper hinge bracket
from the spring cartridge. See Fig. 11. Note which side of the upper hinge bracket is
facing up.

8) Remove the ller cap, ller screws, and spring cartridge. See Fig. 12. Leave the thrust
washers in place on the spring cartridge. NOTICE! Spring cartridge may be difficult

to remove. Be careful not to damage the nish.

Screws

Thrust Washers

Spring Cartridge

Upper Hinge
Bracket

Thrust
Washers

Screw

Washer

Door

Filler Screws

Filler Cap

Door

Fig. 11

Fig. 12

9) Clear foam from the spring cartridge hole to allow for spring cartridge installation.
See Fig. 13. Install the spring cartridge in its new location. Reinstall the ller cap and
ller screws on the opposite side of the door.

Screws

Spring Cartridge

Spring Cartridge Hole

Filler Screws

Door

Filler Cap

Fig. 13

Lower Door Prep and Upper Hinge Bracket Relocation

10) Remove the ller cap and nylon bearing from the bottom of the door. SeeFig.14.
Reinstall on the opposite side.

11) Make sure the thrust washers are in place on the spring cartridge, then ip the upper
hinge bracket over from its original position and install onto the spring cartridge in
the door open position. See Fig. 15. The upper hinge bracket should be positioned as
shown.

Upper Hinge
Bracket Outer
Screw Slot

Filler Cap

Screw

Washer

Upper Hinge Bracket

Thrust Washers

Upper Hinge
Bracket Inner
Screw Hole

Fig. 14

Nylon Bearing

14

Inside of
Door

Fig. 15

Door Installation

12) Remove the black plastic ller cap located from the hole above where the spring
cartridge screw will line up. Note: The black plastic ller cap is not reusable.

13) Remove the upper hinge bracket screws from the new location and apply Loctite
Threadlocker Blue 242 or 243 to the threads. Next, start the upper hinge bracket
outer screw into the appliance. Rotate a few threads into the appliance; do not tighten
thescrew. See Fig. 16.

Upper Hinge Bracket
Outer Screw

Black Plastic Filler Cap

Upper Hinge
Bracket Inner
Screw

Upper Hinge
Bracket Outer
Screw

Fig. 16

14) Be sure the lower hinge bracket thrust washer is in place, then place the door on the
lower hinge bracket in the fully open position. Slide the door upper hinge bracket outer
slot onto the upper hinge bracket outer screw. See Fig. 17.

15) Install the upper hinge bracket inner screw and tighten.

Upper Hinge Bracket

Upper Hinge
Bracket

Outer Screw

Upper Hinge
Bracket Outer
Screw

Upper Hinge
Bracket

WARNING! Upper
hinge bracket may
spring closed

Door Fully Open

Lower Hinge Bracket

Thrust
Washer

Upper Hinge
Bracket Inner
Screw

Door Fully Open

Fig. 17

15

16) Close the door and tighten the upper hinge bracket outer screw.
See Fig. 18.

Upper Hinge Bracket
Outer Screw

Upper Hinge
Bracket

Door Fully Closed

Fig. 18

17) Check the door operation to assure it opens and closes properly. Note: Hold door at
45°angle from closed position and release. Door should close on its own. If not, adjust
hinge bracket.

18) Unlock the casters and move the appliance back into its original position. Lock the
casters once in position, then plug the appliance back into the electrical outlet. Allow the
appliance to cool down prior to putting product back in.

16

E. Door/Drawer Reversal

The appliance is provided with a cabinet design which, after being delivered to the
installation location, permits changing of the drawer and door locations. To change the
drawer and door locations, follow the steps below.

WARNING

• Wear proper PPE (personal protection equipment) when executing these
procedures (safety glasses and gloves).

• Keep ngers away from edge of upper hinge bracket. Spring cartridge can cause
the upper hinge bracket to move suddenly with extreme force.

Drawer and Drawer Cartridge Removal

1) Remove all items from the appliance. Make sure the appliance is unplugged from the
electrical outlet. Move the appliance out for ease of access then lock the casters.
See Fig. 19.

2) Remove the drawers. Pull the drawer out to its fully extended position. Open the safety
clips (one on each side) by sliding them forward. Lift up slightly and remove them from
the drawer cartridge. See. "III.A.5. Drawers" for reference. Be sure to note which is the
upper drawer and which is the lower drawer.

Drawer
Cartridge

Casters

Upper Drawer
Lower Drawer

Fig. 19

3) Remove the 4 mullion screws, then cut the front mullion silicone loose and remove the
mullion. See Fig. 20.

Mullion Screws

Mullion Silicone

Mullion Silicone

Fig. 20

Mullion

17

4) Remove the 4 rear screws from the left and right drawer cartridge frames
(2 per side). See Fig. 21.

5) Remove the 8 front screws from the left and right drawer cartridge frames (4 per side),
then remove the cartridge frames from the unit.

Rear Screws

Front Screws

Fig. 21

Left Drawer
Cartridge Frame

Right Drawer
Cartridge Frame

Pilaster and Filler Screw Relocation

6) Remove the 12 pilaster ller screws from the current drawer section. See Fig. 22.

Rear Pilaster
Filler Screws

Front Pilaster
Filler Screws

Fig. 22

Rear Pilaster
Filler Screws

Front Pilaster
Filler Screws

18

7) Remove the shelves from the door section, then remove the pilasters and place and
secure them in the new location (current drawer location). See Fig. 23. Note: Other than
in a center location, outer pilasters mount on the side wall not the rear wall.

8) Place and secure the pilaster ller screws removed in step 6 into the new drawer
location (current door location).

Shelves

Pilasters

Fig. 23

Pilasters

9) Remove the drawer cartridge frame rear ller screws from the new location (current
door location). Place the drawer cartridge frame ller screws in the new door location
and tighten. Replace the shelves. See Fig. 24.

Rear Filler
Screws

Shelves

Rear Filler
Screws

Fig. 24

19

Door Relocation

10) With the door closed, loosen, but do not remove, the upper hinge bracket outer screw.
See Fig. 25. Next, open the door to the fully open position and remove the upper hinge
bracket inner screw. See Fig. 26.

11) Slide the upper hinge bracket out from under the outer screw and remove the door.

WARNING! Keep away from upper hinge bracket. Upper hinge bracket may spring
closed.

12) Replace the upper hinge bracket inner screw in its original position and tighten, then
tighten the upper hinge bracket outer screw.

Upper Hinge Bracket

WARNING! Upper
hinge bracket may
spring closed

Upper Hinge Bracket

Upper Hinge
Bracket Outer
Screw

Door Closed

Fig. 25

Upper Hinge
Bracket Inner
Screw

Door Fully Open

Fig. 26

13) Remove the lower hinge bracket. See Fig. 27. Be sure to leave the thrust washer in
place.

14) Clear the foam from the lower hinge bracket mounting holes prior to securing the lower
hinge bracket in its new location. Install the lower hinge bracket in its new location. Be
sure the lower hinge bracket is pushed all the way in and the thrust washer is in its
original position.

Lower Hinge

Thrust
Washer

Bracket
Mounting Holes

Lower Hinge Bracket

Thrust Washer

Lower Hinge Bracket

Fig. 27

Bolts

15) Remove the black plastic ller cap located from the hole above where the spring
cartridge screw will line up. Note: The black plastic ller cap is not reusable.

Bolts

16) Remove the upper hinge bracket screws from the new location and apply Loctite
Threadlocker Blue 242 or 243 to the threads. Next, start the upper hinge bracket
outer screw into the appliance. Rotate a few threads into the appliance; do not tighten
thescrew. See Fig. 28.

Upper Hinge

Upper Hinge Bracket
Outer Screw

Upper Hinge
Bracket Inner
Screw

Black Plastic Filler Cap

Bracket Outer
Screw

Fig. 28

20

17) Be sure the lower hinge bracket thrust washer is in place, then place the door on the
lower hinge bracket in the fully open position. Slide the door upper hinge bracket outer
slot onto the upper hinge bracket outer screw. See Fig. 29.

18) Install the upper hinge bracket inner screw and tighten.

Upper Hinge
Bracket

Upper Hinge
Bracket Outer
Screw

Thrust Washer

WARNING! Upper
hinge bracket may
spring closed

Upper Hinge
Bracket Inner
Screw

Upper Hinge
Bracket

Upper Hinge
Bracket Outer
Screw

Lower Hinge
Bracket

Door Fully
Open

Door Fully Open

Fig. 29

19) Close the door and tighten the upper hinge bracket outer screw. See Fig. 30.

Upper Hinge Bracket

Door Fully Closed

Upper Hinge Bracket
Outer Screw

Fig. 30

20) Check the door operation to assure it opens and closes properly. Note: Hold door at
45°angle from closed position and release. Door should close on its own. If not, adjust
hinge bracket.

21

Drawer Relocation

21) Place a drawer cartridge frame in place and secure to the rear panel with screws
removed in step 4. See Fig. 31.

22) Using a 1/8" drill bit, drill pilot holes in all 4 front mounting holes.

23) Secure the drawer cartridge to the appliance with the screws removed in step 5.

24) Repeat steps 21 through 23 for the opposite side drawer cartridge frame.

Left Drawer
Cartridge Frame

Rear Screws

Right Drawer
Cartridge Frame

Rear Screws

Front Screws

Front Screws

Fig. 31

25) Place the mullion in its correct position and secure with screws removed in step3.

26) Place a bead of food grade silicone down the 2 outside vertical gaps between the
mullion and appliance. See Fig. 32.

Mullion

Fig. 32

Silicone
Location for
Mullion

22

Silicone
Location for
Mullion

27) Place the lower drawer in the lower drawer slides and the upper drawer in the upper
drawer slides. See Fig. 33. WARNING! Be sure to close the safety clips when

reinstalling the drawer.

28) Make sure all gaskets are making good contact. Using a ashlight, check that there are
no openings around all gaskets.

29) Unlock the casters and move the appliance back into its original position. Lock the
casters once in position, then plug the appliance back into the electrical outlet. Allow the
appliance to cool down prior to putting product back in.

Fig. 33

23

F. 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.

• The appliance requires an independent power supply of proper capacity. See the
nameplate for electrical specications. Failure to use an independent power supply
of proper capacity can result in a tripped breaker, blown fuse, damage to existing
wiring, or component failure. This could lead to heat generation or re.

• THE APPLIANCE MUST BE GROUNDED. The appliance is equipped with a
NEMA5-15 three-prong grounding plug
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
qualied 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 plug with damp hands.

to reduce the risk of potential shock

• 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 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.

• 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.

• Usually an electrical permit and services of a licensed electrician are required.

• The maximum allowable voltage variation is ±10 percent of the nameplate rating.

24

G. Final Checklist

1) Is the appliance level?

2) Have the casters been properly installed and have the front casters been locked? For
PR46(-D) models, has the anti-tip bracket been properly installed and adjusted?

3) Is the appliance in a site where the ambient temperature is constantly within 45°F to
86°F (7°C to 30°C)?

4) Have the shipping carton, tape, and packing material been removed from the
appliance? Hasthe protective plastic lm been removed from both the exterior panels
and the interior door/drawer panel?

5) Have the appliance and accessories been checked for shipping damage?

6) Is there at least 1" (3 cm) clearance at sides for proper air circulation? Are the
factory-installed rear bumpers in place to ensure proper rear clearance? Is there at least
10"(25cm) clearance above the rail to allow the rail cover to open?

7) Have the rail dividers, pans, rail cover, cutting board brackets, and cutting board been
properly installed?

8) 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.

9) 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?

10) Have the shelves been adjusted to the desired height?

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?

25

II. Operating Instructions

A. Important Notes About Usage

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.

• Do not place any potential ignition sources
in or near the appliance.

Risque De Feu Ou D'Explosion

Le Frigorigène Est Inammable

• 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.

• Ne placez aucune source d’inammation
potentielle dans ou près de l’appareil.

WARNING

• Only qualied 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 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/drawers 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/drawers
or rail cover or when handling food pans.
Be careful when opening and closing the
doors/drawers or rail cover when children
are in the area.

• Open and close the doors/drawers and
rail cover (prep table models) with care.
Opening the doors/drawers or rail cover
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
120lb. (54.5 kg) of product. They might fall
off and cause injury.

• Do not load any single drawer with more
than 150 lb. (68 kg) of product. Depending
on the weight of product in the drawers,
secure the unit as necessary to prevent it
from overturning. Do not open more than
one drawer at a time.

26

WARNING, continued

• The appliance is designed only for
temporary storage of food. Employ
sanitary methods. Use for any other
purposes (for example, storage of
chemicals or medical supplies such
as vaccine and serum) could cause
deterioration of stored items.

• 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. Also allow space between
items and interior surfaces.

• 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.

• The entire rail must always be covered
by rail dividers and pans. Otherwise, the
appliance will not cool properly. Use only
pans up to 6"(15cm) deep. Do not use

damaged rail dividers or pans.

• Ingredients must be pre-chilled to 37°F
(3°C) or less before placing in rail.

• Keep the rail cover closed when not
actively preparing food.

• The rail is for keeping ingredients cool
while preparing food. If not actively
preparing food for a long period such
as overnight, seal pans with plastic
wrap in addition to closing the rail cover.
Depending on conditions, the cabinet
temperature setting may need to be
adjusted to prevent items from freezing.
Alternatively, seal ingredients and store
them in a refrigerator or freezer.

• Food storage and handling must comply
with applicable codes and regulations.

• All foods should be wrapped in plastic
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-contamination. Certain dressings
and food ingredients, if not stored in
sealed containers, may accelerate
corrosion of the evaporator, resulting in
failure.

• Do not store items near air outlets.
Otherwise, items may freeze up and
crack or break causing a risk of injury or
contamination of other food.

27

NOTICE

• Protect the oor when moving the
appliance to prevent damage to the oor.

• Keep ventilation openings, in the
appliance enclosure or in the built-in
structure, clear of obstruction. Do not
place anything on top of the appliance
in an undercounter installation. There
must be at least 1.5" (4 cm) overhead
clearance for proper ventilation. The
factory-installed rear bumpers must be
in place to ensure proper rear clearance.
Blockage of airow could negatively
affect performance and damage the
appliance.

• 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/drawer handle when opening
and closing.

• To avoid damage to the top seal, do not
lift the appliance by the top panel or
remove the top panel.

• Do not leave the doors/drawers open.

• Do not place anything on top of the rail
hood or rail cover and do not lift the
appliance by the rail hood or rail cover.
The rail cover is not designed to bear
any outside weight.

• Do not place anything on the air duct
panels beneath the pans in the rail. The
air duct panels are not load-bearing.

28

B. Startup

WARNING

All parts are factory-adjusted. Improper adjustments may adversely affect safety,
performance, component life, and warranty coverage.

Allow the appliance to cool down prior to loading it with food products.

1) Wash the pans and cutting board before use.

2) Cover the entire rail with rail dividers and pans (up to 6"(15cm)deep).
See "I.C.7. Conrm Rail Dividers and Pans are in Place" for details. Leave the pans
empty until the appliance cools down. WARNING! When the rail cover is open, make

sure the rear pins on both sides of the rail cover are securely in the rear slots and
the front pins are resting securely in the notches. Otherwise, the rail cover could
close suddenly and cause injury.

3) Attach the cutting board. See "I.C.8. Attach the Cutting Board" for details.

WARNING! Make sure the cutting board brackets and cutting board are secure.
Otherwise, the cutting board could come off and cause injury.

4) Plug the appliance into the electrical outlet. WARNING! To reduce the risk of electric
shock, do not touch the plug with damp hands. At startup, there is a slight delay

before the compressor starts.

5) Allow the appliance to cool down prior to loading it with food products. The entire rail
must be covered by rail dividers and pans (up to 6"(15cm)deep) and the rail cover
must be closed. Otherwise, the appliance will not cool properly.

C. Controls and Adjustments

1. Temperature Display

The cabinet temperature is displayed on the control module. See Fig. 34. The display
default is °F, but it can be changed to read °C. To change, see "II.C.3. Changing the
Temperature Display Scale (°F or °C)."

Manual
Defrost
Button

SC
Button

Control Module

Compressor Icon

ECO

SC

Defrost
Icon

Evaporator Fan
Motor Icon

°C
°F

Alarm
Icon

Fig. 34

Up
Button

V

V

Down
Button

Front
Panel

29

2. Adjusting the Temperature Setpoint and Rail and Cabinet Cooling

The temperature setpoint and air baffle control are used to adjust the amount of cooling
for both the cabinet and the rail.

1) To change the temperature setpoint, press and hold the up button briey and then
release. The current temperature setpoint appears. Press the up or down button until
the desired value is displayed. After a few seconds, the display returns to the current
cabinet temperature and the temperature setpoint is saved.

Temperature Setpoint Range: 14°F to 45°F (-10°C to 7°C)
Factory Default: 32°F (0°C)

Note: The temperature differential for the compressor to turn on and off is ±3°F (±1.7°C)
of the temperature setpoint. For example, for a temperature setpoint of 33°F (1°C), the
compressor comes on at 36°F (2.7°C), and the compressor goes off at 30°F (-.7°C).

2) To adjust the air ow balance between the rail and cabinet, slightly unscrew the air
baffle control knob located inside the cabinet. See Fig.35. Move the air baffle control
clockwise to direct more air ow to the rail or counter-clockwise to direct more air ow
to the cabinet. Once the desired position of the air baffle is attained, re-tighten the air
baffle control knob to prevent inadvertent movement of the baffle during operation of the
appliance.

Air Baffle Control Range: 0 (Colder Rail) to 3 (Colder Cabinet)
Factory Default: 1. 5

Note for Extreme Conditions

For extreme conditions where more rail cooling is needed, follow the adjustments in the
table below. The adjustments are listed from less extreme to more extreme.

NOTICE! The settings below are for use only when the rail is in active use in
extreme conditions. Settings must be returned to factory defaults when the rail is
not in active use. Otherwise, performance issues may occur.

Setpoint Air Baffle Control Setting

23°F (-x°C) to 26°F (-3°C) 2
17°F (-x°C) to 22°F (x°C) 1
14°F (-10°C) to 16°F (-x°C) 0

Air Baffle Control Knob

Air Baffle Control

COLDER
CABINET

3

2

30

Factory Default

1

Fig. 35

COLDER

0

RAIL

3A8795-010

3. Changing the Temperature Display Scale (°F or °C)

EHE

To change the temperature display scale, follow the steps below. The factory default is °F.

1) Press and hold both the up and down buttons for 5 seconds. "PAS" appears briey in
the display, then "000" appears.

2) Press the up button to change the display to "001".

3) Press the SC button. "

" appears in the display. Press the up or down button until

"diS" is displayed.

4) Press the SC button. "CFu" appears in the display. Press the SC button again. The
current temperature display scale setting appears. Press the up or down button to
change the temperature display scale.

5) Press the SC button to save the setting. Wait 1 minute or press the manual defrost
button twice to return to the temperature display.

D. Control Module Icons

Control module icons inform you of energized components and if the appliance is in
alarm.

Control Module Icons

Icon Meaning

Compressor

Compressor running.
Defrost

Appliance is in defrost cycle. See "II.E. Defrost" for details.
Evaporator Fan Motor

Evaporator fan motor is running.
Alarm

Appliance is in alarm. See "II.F. Alarm Safeties" for details.

31

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 Inammable

• 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. Automatic Defrost

Defrost is a time/temperature-initiated, temperature terminated heated defrost.

• Defrost Initiation: When the appliance is plugged in, the 6 hr. defrost timer starts.
Once the 6 hr. defrost timer terminates, the control module checks the defrost
thermistor for defrost initiation temperature of 40°F (4.5°C) or below. If defrost
thermistor is at or below 40°F (4.5°C), defrost initiates. If the defrost thermistor is
not at or below 40°F (4.5°C), the control module continues in the cooling mode until
the termination of the next 6 hr. defrost timer.
The minimum defrost time is 5 min.
The maximum defrost time is 1 hr.

• Defrost Termination: When the defrost thermistor warms to 41°F (5°C), defrost
terminates and 6 hr. defrost timer resets.

• The compressor energizes 1-min. after defrost heater de-energizes (drip time)
and the evaporator fan motor(s) energize 2 min. after the compressor energizes.
Note that the 2 min. evaporator fan motor delay time is a maximum; ifthe defrost
thermistor cools to 36°F (2.2°C) before the 2 min. evaporator fan motor delay timer
terminates, the evaporator fan motor(s) will energize.

• During defrost dEF is displayed. dEF is displayed another 15 min. after defrost
terminates. Once the 15 min. dEF display timer terminates, cabinet temperature
returns to display.

2. Manual Defrost

To initiate a manual defrost, press the manual defrost button.

32

F. Alarm Safeties

Alarm signals are designed to protect the appliance and food product. These alarms
give information or warnings in the event the appliance is operating out of acceptable
parameters. Should one of the alarms occur, follow the instructions in the table below to
address the alarm. The alarm code and alarm icon ash with audible alarm.

Alarm Signals

Alarm Code Problem Corrective Action/Reset Details

Cabinet Thermistor Malfunction Alarm

Call a qualied service technician.

E01

E02

Hi

Lo

Cabinet thermistor has failed.

Defrost Thermistor Malfunction Alarm

Defrost thermistor has failed.

High Temperature Alarm

Cabinet temperature has remained
above 57°F (13.9°C) for more than
2hours.

Low Temperature Alarm

Cabinet temperature has remained
below 26°F (-3.3°C) for more than
2hours.

Beeps for 10 seconds, then silent for 50 seconds. To
silence the alarm, press and release the up button.

Appliance cycles 5 min. on, 5 min. off.
Call a qualied service technician.

Beeps for 10 seconds, then silent for 50 seconds. To
silence the alarm, press and release the up button.

Appliance cycles on and off with cabinet thermistor.
If obvious corrections such as closing doors/drawers

and cleaning the air lter and/or condenser do not
bring temperature back in range, call a qualied
service technician.

Beeps for 10 seconds, then silent for 50 seconds. To
silence the alarm and clear "Hi" from the display, press
and release the up button. The alarm icon stays on.

Automatically resets when temperature returns to
normal.

If obvious corrections do not bring the temperature
back in range, call a qualied service technician.

Beeps for 10 seconds, then silent for 50 seconds. To
silence the alarm and clear "Lo" from the display, press
and release the up button. The alarm icon stays on.

UHi

ULo

High Voltage Alarm (135VAC±5% or
more)

Low Voltage Alarm (96VAC±5% or less)

33

Automatically resets when temperature returns to
normal.

Call a qualied service technician.

The compressor de-energizes if voltage protection
operates. The voltage safeties automatically reset when
voltage is corrected.

G. Food Storage

WARNING

• The appliance is designed only for temporary storage of food. Employ sanitary
methods. Use for any other purposes (for example, storage of chemicals or
medical supplies such as vaccine and serum) could cause deterioration of stored
items.

• 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. Also allow space between items and interior surfaces.

• 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 in the cabinet should be wrapped in plastic 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-contamination. Certain dressings and food ingredients, if not stored in sealed
containers, may accelerate corrosion of the evaporator, resulting in failure.

• Do not store items near air outlets in the cabinet. Otherwise, items may freeze up
and crack or break causing a risk of injury or contamination of other food.

• The entire rail must always be covered by rail dividers and pans. Otherwise, the
appliance will not cool properly. Use only pans up to 6"(15cm) deep. Do not use

damaged rail dividers or pans.

• Ingredients must be pre-chilled to 37°F (3°C) or less before placing in rail.

• Keep the rail cover closed when not actively preparing food.

• The rail is for keeping ingredients cool while preparing food. If not actively preparing
food for a long period such as overnight, seal pans with plastic wrap in addition
to closing the rail cover. Depending on conditions, the cabinet temperature
setting may need to be adjusted to prevent items from freezing. Alternatively, seal
ingredients and store them in a refrigerator or freezer.

H. Safety Devices

1. Compressor External or Internal Protector

If combined temperature/amperage value is above the limit specied by the
compressor manufacturer, the compressor protector operates independently to turn
off the compressor. The compressor protector 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 high-side refrigeration pressure exceeds Hoshizaki specications, the high-pressure
switch activates and de-energizes the compressor circuit until the refrigeration pressure
returns to an acceptable level.

34

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:

• Doors/drawers opened too often.

• Doors/drawers left open. Close.

• Cabinet too tightly packed or air inlets/outlets blocked. Allow some space between items
to ensure good air ow.

• Warm or hot foods inside. Take them out until they cool down more.

• Ambient temperature too high. Avoid installation near high heat producing equipment or
exposure to direct sunlight.

• Temperature setpoint not cold enough. Adjust to a colder setting. See "II.C.2. Adjusting
the Temperature Setpoint" for details.

• Appliance in defrost cycle. The cabinet temperature may rise temporarily during the
defrost cycle, but this will not affect the food inside.

• Pans and rail dividers not in place. The entire rail must always be covered by rail
dividers and pans (up to 6"(15cm)deep) or the appliance will not cool properly.

• Warm or hot ingredients inside rail. Only load ingredients that have been pre-chilled to
37°F (3°C) or less.

• Rail cover open when not actively preparing food. When not actively preparing food,
close the rail cover.

J. Cabinet Condensation

In the event condensation develops on the cabinet exterior, check the following items:

• Doors/drawers left open. Close.

• Ambient humidity too high. In high humidity areas it may be necessary to wipe off the
cabinet frame occasionally.

35

III. Cleaning and Maintenance Instructions

A. Cleaning

WARNING

• Unplug the appliance before cleaning 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 plug with damp hands.

• Before cleaning the appliance, move all foods into another clean refrigerator or
freezer.

• Do not splash, pour, or spray water directly onto or into 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 and especially those strong cleaners for use on a
ventilating fan or a cooking range.

• 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.

3. Door/Drawer Gaskets

Door/drawer gaskets should be cleaned regularly with mild soap and warm water to
remove dirt and grease.

4. Shelves

Remove and clean regularly.

36

5. Drawers

Drawers and drawer slides are removable.

• To remove a drawer: Remove all items from the drawer. Pull the drawer out to its fully
extended position. Open the safety clips (one on each side) by sliding them forward.
See Fig. 36. Lift up on the handle slightly, then pull to disengage the drawer. Be sure
to support the rear and front of the drawer while removing it. WARNING! Be sure to

close the safety clips when reinstalling the drawer.

• To remove a drawer slide (center slide containing rollers): Open the stop levers
(one on each side) by sliding them to the rear. See Fig. 37. Lift up on the drawer slide
slightly, then pull to disengage the drawer slide. WARNING! Be sure to close the stop
levers when reinstalling the drawer. Drawer slides do not require lubrication, but
drawer slides should be kept clean and free of food.

Note: Drawer slides are dishwasher safe.

Stop Lever

Closed

Stop Lever

Open

Safety Clips

Fig. 36

Safety Clip

Closed

Safety Clip

Open

Drawer Slide

Stop Lever

Fig. 37

6. Cutting Board

Remove and clean the cutting board as often as necessary to maintain a clean, sanitary
work surface. Also clean the space underneath the cutting board as often as necessary
to maintain a clean, sanitary surface. After cleaning, slide the cutting board back under
the cutting board brackets. WARNING! Make sure the cutting board brackets and

cutting board are secure. Otherwise, the cutting board could come off and cause
injury.

7. Pans

Wash pans as often as necessary to maintain clean, sanitary conditions.

8. Rail, Rail Dividers, and Rail Cover

Spills and splashes should be wiped up promptly to avoid unpleasant odors. Wipe the
rail area, rail dividers, and rail cover occasionally with a clean, damp sponge or cloth
containing a neutral cleaner. Clean any rust colored spots using a non-abrasive cleanser.
Do not pour or spray water into the rail area.

WARNING!

• Support the rail cover when cleaning. Otherwise, the rail cover could close
suddenly and cause injury.

• Metal edges can cause cuts. Use care and wear protective gloves when cleaning.

37

9. Rail Air Duct

1) Move all foods into another clean refrigerator or freezer.

2) Unplug the appliance. WARNING! To reduce the risk of electric shock, do not touch

the plug with damp hands.

3) Remove the pans and dividers from the rail. WARNING!Support the rail cover when

cleaning. Otherwise, the rail cover could close suddenly and cause injury.

4) Air Duct Panel and Rail Area Cleaning: WARNING!Metal edges can cause cuts.

Use care and wear personal protective equipment (gloves and goggles) when
cleaning.

a) Daily: Wipe the air duct panels and rail area with a mild soap or detergent and warm

water. After cleaning, wipe the air duct panels with water.

b) Periodically: Follow the steps below to remove and clean the air duct panels and rail

area. The quantity of air duct panels varies by model. See Fig.38.

(1) Remove the left and right air duct brackets, then remove the upper right air duct

panel, upper center air duct panel (if applicable), and upper left air duct panel.
Next, remove the lower air duct panel (PR46A(-D) and (PR67A(-D_)), lower right air
duct panel, and lower left air duct panel (PR93A(-D_)).

(2) Wipe the air duct panels (top and bottom), rail area (sides and top), and surrounding

mounting area with mild soap or detergent and warm water. Clean any rust colored
spots using a non-abrasive cleanser. After cleaning, wipe the air duct panels with
water.

(3) Replace the air duct panels in their correct positions starting from the right side.

WARNING!Air duct panels must be replaced in the proper location and
orientation. See Fig. 38. Otherwise, cooling performance will be reduced.

7) Place the rail dividers and pans (up to 6"(15cm)deep) into their correct positions.
Leave the pans empty until the appliance cools down.

8) Close the rail cover.

9) Plug the appliance into the electrical outlet.

10) Allow the appliance to cool down prior to loading it with food products. The entire rail
must be covered by rail dividers and pans and the rail cover must be closed. Otherwise,
the appliance will not cool properly. Leave the pans empty until the appliance cools
down.

Air Duct Panels

Air Duct Panels

Air Duct Panels

PR46A Series PR67A Series PR93A Series

Fig. 38

38

B. Maintenance

WARNING

• 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 or
freezer.

1. Condenser

Check the condenser once a year, and clean if required by following the steps below.
More frequent cleaning may be required depending on location.

1) Unplug the appliance from the electrical outlet. WARNING! To reduce the risk of

electric shock, do not touch the plug with damp hands.

2) Remove the screws securing the front panel, then pull and lift the front panel out slightly
to remove it. See Fig. 39. NOTICE! Be careful not to pull out the front panel too

far because there are power wires and thermistor wires attached to the control
module in the front panel.

3) Without pulling on the wires, set the panel to the side.

4) Use a brush attachment on a vacuum cleaner to gently clean the condenser ns. Do not
use too much force, otherwise the ns could be damaged. WARNING! Condenser ns

are sharp. Use care when cleaning.

5) Replace the front panel in its correct position. Ensure that the screw is securely in place.

6) Plug the appliance back into the electrical outlet.

Front Panel

Screws

Wires

Condenser

Fig. 39

39

2. Condensate Drain

Clean the condensate drain as often as necessary to maintain proper ow. Follow the
steps below.

1) Unplug the appliance from the electrical outlet. WARNING! To reduce the risk of

electric shock, do not touch the plug with damp hands.

2) Remove the screw securing the front panel, then pull and lift the front panel out slightly
to remove it. See Fig. 40. NOTICE! Be careful not to pull out the front panel too

far because there are power wires and thermistor wires attached to the control
module in the front panel.

3) Without pulling on the wires, set the panel to the side.

4) Remove the screws securing the side panel, then slide the panel forward and down
slightly and remove.

5) Remove the cable tie and condensate drain hose. See Fig. 41. NOTICE! Before

removing the condensate drain hose, place a pan underneath the condensate
drain pipe to catch any water.

6) Remove the drain boot from the condensate drain pipe.

7) Clean the condensate drain hose, drain boot, and condensate drain pipe.

8) Replace the removed parts in their correct positions. NOTICE! Be sure the condensate

drain hose is secured with a cable tie and is positioned correctly into the
condensate pan.

9) Replace the side panel and front panel in their correct positions. Ensure the screws are
securely in place.

10) Plug the appliance back into the electrical outlet.

Screws

Front Panel

Screw

Side Panel

Wires

Screws

Fig. 40

Drain Boot

Condensate Drain Hose

Condensate Drain Pipe

Cable Tie

Condensate Pan

Fig. 41

3. Power Supply Connection

If the plug or power cord is damaged, contact your local Hoshizaki service representative
or local Hoshizaki distributor immediately and ask for repairs.

All other maintenance or service on the appliance should be performed in accordance
with the Hoshizaki Service Manual by a qualied service technician.

40

IV. Preparing the Appliance for Periods of Non-Use

When shutting down the appliance for more than one week, follow the instructions below.

WARNING

When preparing the appliance for long storage, prevent the doors/drawers from
closing to reduce the risk of children getting trapped.

NOTICE

When preparing the appliance for long storage, clean the appliance. See
"III.A. Cleaning" for details.

1) Before shutting down the appliance, move all foods into another clean refrigerator or
freezer.

2) Unplug the appliance. WARNING! To reduce the risk of electric shock, do not touch

the plug with damp hands.

41

V. Disposal

DANGER

Risk of Fire or Explosion Flammable Refrigerant Used

• Follow handling instructions carefully in compliance with U.S. government
regulations.

• Do not puncture refrigerant tubing. Risk of re or explosion due to puncture of
refrigerant tubing; follow handling instructions carefully.

• Dispose of properly in accordance with federal or local regulations.

Risque De Feu Ou D'Explosion Le Frigorigène Est Inammable

• Suivre attentivement les instructions de manipulation conformément à la
réglementation gouvernementale.

• 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.

• Éliminer conformément aux règlements fédéraux ou locaux.

WARNING

When preparing the appliance for disposal, remove the doors/drawers to reduce the
risk of children getting trapped. Leave the shelves in place so that children may not
easily climb inside.

The appliance contains refrigerant and must be disposed of in accordance with
applicable national, state, and local codes and regulations. Refrigerant must be
recovered by properly certied service personnel.

42

618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A5260-010

43