Only qualified service technicians should install, service and maintain the
product. No installation, service or maintenance should be undertaken until
the technician has thoroughly read this Installation Manual. Likewise, the
owner/manager should not proceed to operate the product until the installer
has instructed them on its proper operation. Failure to install, operate, and
maintain the equipment in accordance with this manual may adversely affect
safety, performance, component life, and warranty coverage.
Hoshizaki provides this manual primarily to assist qualified service technicians in the
installation, maintenance, and service of the product.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, write, or send an e-mail message to the Hoshizaki Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
Phone: 1-800-233-1940 Technical Support
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.
i
IMPORTANT
This manual should be read carefully before the product is installed and
operated. Only qualified service technicians should install, service, and
maintain the product. Read the warnings contained in this booklet carefully as
they give important information regarding safety. Please retain this booklet for
any further reference that may be necessary.
7. DETERGENT/RINSE AID FEEDER ------------------------------------------------------------- 13
8. TRIAL RUN --------------------------------------------------------------------------------------------- 14
[a] CHECKS BEFORE TRIAL RUN -------------------------------------------------------------- 14
[b] PREPARING HOT WATER SUPPLY -------------------------------------------------------- 15
[c] FINAL CHECKS ----------------------------------------------------------------------------------- 15
[d] AFTER TRIAL RUN ------------------------------------------------------------------------------ 16
[e] ADJUSTMENT ------------------------------------------------------------------------------------ 17
Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, or damage to the unit.
WARNING
CAUTION
Indicates a situation which could result in damage to the unit.
IMPORTANT
This product 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.
To reduce the risk of death, electric shock, serious injury, or fi re, follow
basic precautions including the following:
• Electrical connection must be hard-wired and must meet national, state, and
local electrical code requirements. Failure to meet these code requirements
could result in death, electric shock, serious injury, fi re, or severe damage to
equipment.
• This unit requires independent power supplies for the dishwasher and for the
booster tank. See the nameplate for proper voltage and breaker/fuse sizes.
Failure to use proper breakers or fuses can result in tripped breakers, blown
fuses, or damage to existing wiring. This could lead to heat generation or
fi re.
• THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit
could result in death or serious injury.
• This unit should be disassembled or repaired only by qualified service
personnel to reduce the risk of electric shock, injury, or fi re.
• Do not make any alterations to the unit. Alterations could result in electric
shock, injury, fi re, or damage to the unit.
Indicates a hazardous situation which could result in death or
serious injury.
Indicates important information about the use and care of the
unit.
WARNING
iii
1. MOVING
WARNING
When handling the unit (unloading from pallet,
moving, installing), do not hold the door or handle, or
the door will open. Hold the parts indicated by arrows
only.
Do not remove the shipping band securing the door until the end of installation.
WARNING
1. Do not lay down the unit. The door may open and cause injury.
2. This is a heavy unit. Handle and move it with care to prevent injury.
3. When unpacking or moving the unit, be careful not to damage the parts on
the bottom.
2. INSTALLATION
WARNING
1. This product must be installed in accordance with applicable national, state,
and local regulations.
2. To prevent possible water leak, electric shock or fi re, the installation must be
carried out by qualifi ed personnel according to this manual. On completion
of the installation, start up the unit to check for any abnormalities, and
instruct the user on how to use and maintain the unit in accordance with the
instruction manual.
3. This unit is not intended for outdoor use. Exposure to rain may cause electric
leakage or shock.
4. To prevent fire, electric shock, injury or water leak, this unit should be
1
disassembled, repaired or modifi ed only by qualifi ed service personnel.
5. The location should provide a fi rm and level foundation for the unit to avoid
the risk of water leaks or injury caused by overturn or fall.
6. Avoid a site where dripping is not allowed. The unit may drip water onto the
fl oor.
7. Ambient temperature should be within 41 to 95°F (5 to 35°C). Operation of
the unit for extended periods outside of this normal temperature range may
affect performance.
8. Do not install the unit where there is a risk of freezing. If there is a possibility
that the ambient temperature may fall below 32°F (0°C) and freeze the unit,
be sure to drain the unit. The water supply line could be damaged and leak
water, resulting in damage to the surrounding property.
9. Install the unit where high temperatures and steam are allowed. During
operation, the surface temperature will reach around 176°F (80°C), and
steam will come out from between the door and body.
[a] SHIPPING TAPE
1) Remove the shipping band from the door.
2) Remove the shipping tape from the exterior.
3) Remove the shipping band from the rack
and package of accessories.
4) Remove the shipping tape from the rack rail.
5) Remove the shipping tape from the upper
and lower spray arms.
6) Remove the shipping tape from the tank
filters and separator. Take out the tank
fi lters.
IMPORTANT
Do not remove the labels.
Upper Wash
Spray Arm
Upper Rinse
Spray Arm
Rack Rail
Lower Rinse
Spray Arm
Lower Wash
Spray Arm
Door
Accessories
in Rack
Separator
Tank Filter
Pump Filter
Front Panel
Adjustable Leg
2
[b] CHECKS BEFORE INSTALLATION
1) Check the exterior including the front panel and door for damage.
2) Check the internal parts including the spray arms and fi lters for damage or clogging.
3) The accessories except the rack are provided in the package. Check that all the
accessories listed in the instruction manual (see “1. [c] ACCESSORIES”) are included
and not damaged.
IMPORTANT
1. Visually inspect the exterior of the shipping container and immediately report
any damage to the carrier. Upon opening the container, any concealed
damage should also be immediately reported to the carrier.
2. The instruction manual should be handed over to the user.
[c] PROTECTIVE FILM
Be sure to remove the protective plastic film from the door and other parts which may
become hot during operation. Otherwise the adhesive on the fi lm will make the stainless
steel exterior look unclean.
[d] OPERATION PANEL
Be sure to attach the operation panel before installing the unit. It is prepared at the factory
to be attached to the right side of the unit.
1) Loosen screws A on the pillar at the right side
Frame Cover
of the body (no need to remove). Then, remove
screw B at the front of the pillar to take off the
frame cover.
㪙
㪘
㪚
2) Insert the operation panel cable into the frame
(C), and route it into the machine compartment.
Then, attach the operation panel. Be careful not
to let the wiring touch the door opener.
3) Remove the front panel, and pull the cable from
the back of the machine compartment.
㪚
4) Remove the plastic bag from the operation
panel connection cable coming out of the
control box, and connect these cables.
3
Door Opener
5) Cover the cable connection with the plastic
bag, and tie it upward as illustrated. Refi t the
front panel in its correct position.
IMPORTANT
To attach the operation panel to the left side, remove screws D from the
operation panel, turn the bracket upside down, and reattach it using the other
holes. Remove screws E and the cover, then attach them to the right side pillar.
Make sure that the wiring inside the machine compartment is clear of all moving
parts (i.e., fan motor).
㪜
㪛
[e] CONNECTION TO A DISHTABLE
CAUTION
When connecting a dishtable, apply silicone sealant to a thickness of at least
1/2” (12.7 mm) to the end of the mounting screw to prevent water leaks resulting
in electric leakage or shock.
A dishtable facilitates loading and unloading of the
rack.
1) Remove the side panel where the dishtable is
to be installed.
2) Use the adjustable legs of the dishtable and
dishwasher to level them in both the left-to-right
and the front-to-rear directions. The unit must
not tilt more than 1/2” (12.7 mm) as shown in
the illustration.
4
Adjustable
Leg
Turn clockwise
1/2" (12.7mm)
to adjust higher
3) Hook the dishtable on the wash tank. Drill a hole in the
wash tank to match the mounting hole in the dishtable.
4) Secure the dishtable to the dishwasher with a screw.
Apply silicone sealant to the screw threads as shown
on the right and between the dishtable and the wash
tank.
Dishtable
Dishwasher
ⓣࠍߌࠆ
Drill a hole
5) Refi t the side panel in its correct position.
6) For corner installation, if the side of the
dishtable located at the front of the dishwasher
is 9” (229 mm) or higher, the door handle will
hit the dishtable. In this case, make a notch in
the dishtable as shown on the right.
Make additional adjustments to the dishtable,
if necessary, to improve the tightness between
the dishtable and the dishwasher or to facilitate
loading and unloading of the rack.
IMPORTANT
1. To prevent possible corrosion,
do not leave any shavings after
drilling the hole in the wash tank.
Dishtable
Min 1/2"
(12.7mm)
Door Handle
Door
5"
(127mm)
9"
(229mm)
Dishtable
2. To connect a dishtable to the
front of the dishwasher, keep the
hook on the wash tank within 1.6”
(40 mm) from the rim. Otherwise
the built-in door switch may not
operate properly.
If this is not practical, make a
notch as shown on the right.
3. See “DISHTABLE REFERENCE
DRAWINGS” D05003, D05004,
D05005, and D05006 at the end
of the service manual (80VC-782)
for details.
Max 1.6"
(40mm)
Front
Tank
Door Switch
Dishwasher front
center line
5
[f] RACK GUIDE
The rack guide helps ease the load and unload the rack smoothly. It is provided in the
package of accessories together with the securing bolts.
The rack guide location depends on the installation conditions.
Straight Installation
Dishwasher
Rear
Dishtable
Front
Rack Guide
Dishtable
Corner Installation
Dishwasher
Dishtable
Rack Guide
Rear
Front
Secure the rack guide tightly with the two hexagon bolts.
Dishwasher
Dishtable
Front
Rack Guide
Rear
Rack Guide
6
3. VENTILATION
WARNING
1. Installation must be in accordance with applicable national, state, and local
regulations.
2. If an exhaust hood is required to discharge steam from the dishwasher, it
should provide a minimum 450 CFM and be a listed and labeled factory-built
commercial exhaust hood tested in accordance with UL Standard 710 by a
nationally recognized testing laboratory.
It must be installed according to the terms of its listing and the manufacturer’s
installation instructions.
3. To use a gas water heater, thoroughly read its instruction manual. Ensure
adequate air intake and exhaust systems and exhaust hoods in accordance
with applicable national, state, and local regulations for the type and capacity
of the heater to prevent dangerous conditions due to lack of oxygen and toxic
gas generation.
Only qualifi ed service personnel should install the above systems.
4. WATER SUPPLY AND DRAIN CONNECTIONS
WARNING
Plumbing connections must comply with applicable sanitary, safety and
plumbing codes.
CAUTION
To prevent water leaks resulting in damage to the surrounding property, make
proper water supply and drain connections according to this manual.
[a] WATER HEATER CONNECTION
Make the water heater connection according to its instruction manual.
[b] PRESSURE REDUCING VALVE
Keep the water supply pressure within 10 to 70 PSIG.
If the water pressure is too high, a pressure reducing valve (not supplied) must be installed
in the water line just ahead of the dishwasher.
7
CAUTION
The pressure reducing valve must have a relief by-pass. Failure to use the
proper type of pressure reducing valve may result in damage to the unit.
[c] WATER SOFTENER
If water hardness exceeds 4 grains per gallon, a water softener (not supplied) must be
installed in the primary circuit (water supply inlet) of the water heater.
IMPORTANT
The recommended water hardness of not more than 4 grains per gallon is for
the dishwasher. If the required water hardness for the water heater is lower,
meet that requirement.
* External fi lters and strainers may be required depending on water quality. Contact your
local Hoshizaki distributor for recommendations.
* Sediment, silica, chlorides or other dissolved solids may lead to a recommendation for
particulate fi ltration or reverse osmosis treatment.
* If an inspection of the dishwasher or booster heater reveals lime build-up after the
equipment has been in service, in-line water treatment should be considered, and, if
recommended, should be installed and used as directed.
Water
Heater
Water Softener
Water Supply Line
Shut-off Valve
Water
Strainer
(3/4" FPT)
Wash Tank
Drain Pipe
Dishwasher
Water Supply
Valve
Water
Hammer
Arrestor
Gas
Gas Supply Line
Shut-off Valve
Wash Tank Drain Hose
Fitting (1-1/2" MPT)
Drain Valve
Pressure Reducing
Valve with By-pass
8
[d] STRAINER
Attach the strainer (accessory) to the water supply
pipe on the bottom front of the unit. To prevent water
leaks, be sure to insert the rubber gasket (accessory)
between the water supply pipe nut and the strainer.
Tighten Loosen
Gasket (accessory)
Water Supply Pipe
FPT
NPT
Strainer (accessory)
Bottom
[e] HOT WATER SUPPLY CONNECTION
WARNING
To reduce the risk of burns, the hot water supply line must be thermally
insulated. Hot water around 167°F (75°C) will fl ow inside.
* Where there is a risk of water hammer, it is recommended to install a water hammer
arrestor between the dishwasher and water heater.
* Required incoming water temperature:
Incoming Water Temperature
MinimumRecommendedMaximum
110
°F (43°C)
140
°F (60°C)
If water is supplied at a temperature below 110°F (43°C), the dishwasher cannot maintain
the proper rinse water temperature and may require a longer wash cycle time than the 53
second cycle. In such case, consult with an authorized Hoshizaki service company.
167
°F (75°C)
Wash TemperatureRinse Temperature
MinimumRecommendedMinimumRecommended
°F (66°C)150°F (66°C)180°F (82°C)180°F (82°C)
150
* Optional connection for low temperature conditions:
Where there is a risk of freezing, install a drain valve (shut-off valve) between the water
supply valve and dishwasher.
IMPORTANT
When an instantaneous water heater is used, it must be an exclusive type for a
dishwasher and provided with an end stop system.
9
[f] DRAIN CONNECTION (WASH TANK DRAIN)
CAUTION
To ensure proper draining, do not route the drain pipe where it can be stepped
on.
* Drain line should be pitched (1/4” per foot) to the floor
drain. An air gap of a minimum of 2 vertical inches (5 cm)
Drain Pipe
(pitched)
should be between the end of the drain pipe from the
dishwasher and the fl oor drain.
* If a grease trap is required in the drain line by regulations,
Floor Drain
check that it is present at the time of installation.
5. ELECTRICAL CONNECTION
WARNING
1. Electrical connection must be hard-wired and must meet national, state, and
local electrical code requirements. Failure to meet these code requirements
could result in death, electric shock, serious injury, fi re, or extensive damage
to equipment.
2. This unit requires an independent power supply. See the nameplate for
proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse
can result in a tripped breaker, blown fuses, or damage to existing wiring.
This could lead to heat generation or fi re.
Min 2"
(5cm)
3. THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit could
result in death or serious injury.
4. Make sure the power supply is off before making any electrical connections
to prevent possible electric shock. Lockout/Tagout to prevent the power from
being turned back on inadvertently.
Electrical Specifi cations
(Also Refer to the Dishwasher Nameplate)
AC Supply VoltageMaximum Breaker/Fuse SizeMinimum Circuit Ampacity
208 - 230V / 60Hz / 3Ph50A50A
* Usually an electrical permit and services of a licensed electrician are required.
10
* The maximum allowable voltage variation is ±10
percent of the nameplate rating.
Terminal Block
* The voltage tap switch in the unit must be
positioned to match incoming voltage at startup
230V
208V
(factory default: 230V).
Voltage Tap Switch
* The opening for the power supply connection is
1.11” DIA to fi t a 3/4” trade size conduit.
Pump Motor
1) Remove the front panel.
2) Remove the 3 screws securing control box cover (A), then remove the cover.
3) Connect the ground wire to the ground screw in the base.
4) Route the 3 power wires through the 27.5” (700 mm) UL tube provided and then through
the strain relief in the control box next to the power switch (GFCI).
WARNING
The UL tube must slope downward from the strain relief to prevent entrance of
water through the strain relief into the control box.
IMPORTANT
Do not cut the UL tube. The extra length allows the control box to be pulled out
for service after installation.
5) Securely connect M8 ring terminals to the ends of the wires, then connect the ring
terminals to the terminals on the power switch (GFCI).
6) If the control box has been moved, carefully slide the control box into its correct position
while taking care not to catch the wires. Make sure the rear of the control box has
engaged the tab in the base.
7) Make sure the strain relief is in its proper position, then secure control box cover (A)
using the 3 screws.
8) Use the wire retainer in front of the rinse pump motor to secure the UL tube.
9) Reattach the front panel.
11
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