Hoshizaki HDD-1-24 User manual

Instruction Manual
Direct Draw Equipment
Models
HDD-1-24 (-S)
HDD-2-59 (-S)
HDD-3-69 (-S)
HDD-3-80 (-S)
HDD-4-95 (-S)
hoshizakiamerica.com
Issued: 08-04-2018
Revised:

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Hoshizaki provides this manual primarily to assist qualified 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: [email protected]
HOSHIZAKI AMERICA, INC.
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.
WARNING
Only qualified service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certified 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. Failures 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.

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This manual should be read carefully before the appliance is serviced. Read the
warnings and guidelines contained in this manual carefully as they provide
essential information for the continued safe use, service, and maintenance of the
appliance. Retain this manual for any further reference that may be necessary.
IMPORTANT
CONTENTS
IMPORTANT SAFETY INFORMATION..................................................................................4
INSTALLATION......................................................................................................................7
1.1 General information..........................................................................................................7
1.2 Transport, handling, unpacking, location ..........................................................................7
1.3 Intended use and restrictions............................................................................................8
1.4 Manufacturer’s identification label description...................................................................8
1.5 Installation and assembly .................................................................................................9
1.6 Connections .....................................................................................................................9
OPERATION........................................................................................................................10
2.1 General Information........................................................................................................10
2.2 Control Panel Description...............................................................................................10
2.3 Machine settings and programs......................................................................................11
2.4 Analog Thermostat.........................................................................................................12
2.5 Tower Installation...........................................................................................................13
MAINTENANCE...................................................................................................................15
3.1 General safety rules .......................................................................................................15
3.2 Machine cleaning and maintenance routine....................................................................15
3.2.1 Cleaning the Condenser Coil.......................................................................................15
3.3 Machine Disposal...........................................................................................................16
TROUBLESHOOTING CHART............................................................................................17
4.1 Troubleshooting chart.....................................................................................................17

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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. Failures 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 fire, follow basic
precautions including the following:
•Only qualified service technicians should install and service 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.
•To reduce the risk of electric shock, do not touch the plug or power switch with
damp hands.
•Make sure the power switch is in the “OFF” position before plugging in or
unplugging the appliance the risk of electric shock.
•Before servicing, move the power switch to the “OFF” position. Unplug the
appliance from electrical outlet.
•This appliance requires an independent power supply of proper capacity. See
name plate for electrical specifications. 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 fire.
•THE APPLIANCE MUST BE GROUNDED: The appliance is equipped with a
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
qualified 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 fire.
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.
WARNING Indicates a hazardous situation which could result in death or
serious injury.
NOTICE Indicates a situation which could result in damage to the
appliance or property.
IMPORTANT Indicates important information about the use and care of the
appliance.

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WARNING, continued
•The appliance is designed only for storage and display of non-potentially-
hazardous beverage kegs only. 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 use an extension cord.
•Do not use an appliance with 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 fire. 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, fire, 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 give 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 fingers when opening and closing the doors 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 flammable substances in or near
the appliance. They might catch fire.
•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
100 lb (45 kg) of product they might fall off and cause injury
•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 flow. Also allow space between items and interior surfaces.

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NOTICE
•Protect the floor when moving the appliance to prevent damage to the floor.
•Keep ventilation openings, in the appliance enclosure or in the built-in structure,
clear of obstruction. Blockage of airflow 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 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 open.

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INSTALLATION
1.1 General information
1.2 Transport, handling, unpacking, location.
1.3 Intended use and restrictions.
1.4 Manufacturer’s identification label description.
1.5 Installation and assembly.
1.6 Connections (electric, gas, water)
1.1 General information
You can find the following symbols, or stickers to identify some type of warnings or
useful information about your equipment.
1.2 Transport, handling, unpacking, location
Upon receiving your new appliance, check the package and the machine for any
damage that may have occurred during transportation. Visually inspect the exterior of
the package, if damaged, open and inspect the contents with the carrier. Any damage
should be noted and reported on the delivering carrier’s receipt.
In the event that the exterior is not damaged, yet upon opening, there is concealed
damage to the equipment notify the carrier immediately. Notification should be made
verbally as well as in written form. Request an inspection by the shipping company of
the damaged equipment.
Retain all crating material until inspection has been made. Contact the dealer through
which you purchased the unit.
Check the compressor compartment housing and visually inspect the refrigeration
package. Be sure lines are secure and base is still intact.

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1.3 Intended use and restrictions
HOSHIZAKI equipment is not designed for personal, family, or household purposes,
and its sale for such purposes is not intended. In the event the equipment is so used,
this warranty shall be null and void, and the equipment is so used, this warranty shall be
null and void, and the equipment shall be deemed to have been sold “as is-where is”
without any warranty of any kind, including without limitation any warranty of title, non-
infringement, merchant-ability or fitness for a particular purpose.
The appliance complies with UL471 and NSF-7(DISPLAY II) STANDARDS.
If you want know more about other restrictions about your equipment see the warranty
that is located in the final part of your manual.
1.4 Manufacturer’s identification label description
The nameplate is located inside the cabinet, near the top front, left corner. Under no
circumstances should the nameplate be removed from the unit. The nameplate is
essential to identify the particular features of your appliance and it is of great benefit to
installers, operators, and maintenance personnel. It is recommended that, in the event
the nameplate is removed, you copy down the essential information in this manual for
reference before installation. Removal of nameplate will void the warranty.
Model
Refrigerant
Type
Electrical
Information
Serial Number
Product Code
Refrigerant
Charge

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1.5 Installation and assembly
This appliance is intended for indoor use only. Be sure the location chosen has a floor
strong enough to support the total weight of the unit and contents. For the most efficient
operation, be sure to provide good air circulation inside and outside of the unit.
INSIDE CABINET
The first cleaning must be made when you unpack the unit and before switching it on.
Clean it with water and a mild detergent. When it is clean and dry, insert the
accessories in the appropriate places, for the best use of the user.
OUTSIDE CABINET
Be sure the unit has good air circulation around it. Avoid hot corners and locations near
stoves and ovens. It is recommended the unit be installed no closer than 2” from any
wall. Place in a clean area to avoid clogging the condenser, which can cause low
performance and failures.
The unit should not be installed in ambient temperatures higher than 100°F. If the
relative humidity is higher than 60%, condensation may form around the door
frame. This is not a malfunctioning of the unit.
1.6 Connections
Refer to the amperage data on the nameplate and your local code or the National
Electrical Code to be sure unit is connected to the proper power source. Verify correct
incoming voltage according to the nameplate information.
A protected circuit of the correct voltage and amperage must be run for connection of
the power cord. Unit must be grounded and connected in accordance with NEC Article
422 Appliances.

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OPERATION
2.1 General information.
2.2 Control panel description.
2.3 Machine settings and programs.
2.4 Analog Thermostat.
2.5 Tower Installation
2.1 General Information
Good air flow inside the cabinet is critical. Do not block the air outlet or the evaporator
fan grill. A minimum of 2 inches of space along the front, back, and sides is required for
proper air flow.
2.2 Control Panel Description
Models: HDD-2-59 (-S), HDD-3-69 (-S), HDD-3-80 (-S), HDD-4-95 (-S)
Door to access
condensing unit and
control box.
Controller
Controller
Switch Rocker
Turn on/Off
Unit condensing
Power Switch
Turn On/Off
Appliance
Lamp Switch
Turn On/Off
The Lamp

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Controller
After connecting your unit, move the power switch located next to the controller to the
“ON” position. The display will show the cabinet temperature. Also, the compressor and
fan icons will flash for a period of three minutes. After this delay the unit will start
cooling.
Verify you don't have any alarms on the controller. If after you turn ON the equipment
the controller shows an alarm icon or an error code, please contact your local Hoshizaki
certified service representative. They will help you fix the problem.
2.3 Machine settings and programs
Changing the temperature setpoint on the controller.
The unit comes with a factory default setpoint of 32°F. If setpoint needs to be changed,
follow the steps below.
Press and hold the “SET”button for one second. You should see a flashing number.
Release the button.
Press the “UP” or “DOWN” arrows to increase or decrease the setpoint. Then press the
“SET”button to save the new setpoint.
Note:
The maximum value you can set in the controller is: 36°F.
In setpoint mode press to raise temperature,
otherwise press and hold to turn compressor on or
off without unplugging or using power switch
Compressor Icon
Cabinet Temperature
Press to change the temperature
setpoint
In setpoint mode press to lower
temperature, otherwise press and hold
to initiate manual defrost.
Power Switch Turn
On/Off

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If you wish to decrease the setpoint, press the “DOWN”arrow button until you reach the
desired value. Release the button and then press the SET button to keep, and save, the
new value.
Note:
The minimum value you can set in the controller is: 30°F.
Manual Defrost
To select manual defrost, press and hold the manual defrost button for 5 seconds. The
snow flake icon will appear on the display. When this icon is solid it indicates that the
equipment is in defrost mode.
To exit manual defrost, hold the “DOWN”arrow button for 5-sec. The snow flake icon
will turn off. Wait 3-min. for the compressor to energize.
2.4 Analog Thermostat
Model: HDD-1-24
Before connect the unit to the power supply, verify the analog thermostat is NOT in the
OFF position (“OFF” over the yellow mark). If the dial is in the OFF position the
compressor will not run but the evaporator fan will still power while the analog
thermostat is in the OFF position.
The dial of the analog thermostat is to set the temperature and this is located inside the
cabinet (fig. 1). Please be sure that the dial is pointing to the yellow arrow on 5, this is
the position recommended by the factory to assure correct function (fig. 2). The
warmest setting is 1 and the coldest setting is 7.
Analog Controller
Located inside the
unit in the right side
“OFF” over yellow
mark the
compressor will
not work.
For best
performance
knob should
be pointing
yellow mark
Knob to adjust
thermostat
setting.
Fig. 2
Fig. 1

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Defrost
Off-Cycle Defrost: the HDD-1-24 refrigerator defrost naturally between run cycles.
2.5 Tower Installation
This procedure describes how to install the towers and the air hose needed to provide
cold air directly into the towers.
Tools needed: Philips Screwdriver.
Step 1
Locate the gaskets and bolts included in with your Tower accessories kit. Place gasket
over the pre-drilled holes on top and place the 4 screws thru the tower base. Align the
tower with screws and gasket to the top as shown below while dropping the beer line(s)
thru the hole on top of the unit.
Step 2
Tighten the screws using the nuts found in your tower accessories kit
Step 3
Identify the “WHITE HOSE CORRUGATED” which is found inside of the equipment.
WHITE HOUSE
CORRUGATED

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Step 4
Introduce the “WHITE HOSE CORRUGATED” into the tower’s HOLE.
Be sure that the hose hook is correctly attached into the tower hole.
Hose Hook

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MAINTENANCE
3.1 General safety rules.
3.2 Machine cleaning and maintenance routine.
3.3 Machine disposal.
3.1 General safety rules
Neglecting the condenser coil cleaning procedures WILL VOID YOUR WARRANTY
associated with the compressor or cost to replace the compressor!
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, scrapers, or products containing sodium hypochlorite (chlorine bleach). Use a
clean, soft cloth for cleaning.
3.2 Machine cleaning and maintenance routine
Cleaning solutions need to be alkaline or non-chloride cleaners. Any cleaner containing
chlorides will damage the protective film of the stainless steel. Chlorides are also
commonly found in hard water, salts, and household and industrial cleaners.
Routine cleaning of stainless steel can be done with soap and water. Extreme stains or
grease should be cleaned with a non-abrasive cleaner and plastic scrub pad. There are
also stainless steel cleaners available which can restore and preserve the finish of the
steel’s protective layer.
Never use an acid based cleaning solution! Many food products have an acidic content
which can deteriorate the finish. Be sure to clean ALL food products from any stainless
steel surface. Common items include peppers, tomatoes and other vegetables.
3.2.1 Cleaning the Condenser Coil
Move the power switch to the “OFF” position, then unplug appliance, remove front
bottom panel and carefully slide out the condensing unit. The condenser coil requires
regular cleaning; recommended every 30-60 days, depending of the accumulation of
dust and grease. If the buildup on the coil consists of only light dust and debris the
condenser coil can be cleaned with a simple brush. Heavier dust build up may require a
vacuum or even compressed air to blow though the condenser coil. If heavy grease is
present there are de-greasing agents available for refrigeration use and specifically for
the condenser coils. The condenser coil may require a spray with the de-greasing agent
and then blown through with compressed air.
Be sure all electrical and mechanical parts are dry before turning on the power. Never
use a high pressure water wash for this cleaning procedure as water can damage the
electrical components located near or at the condenser coil. Do not place filter material
in front of condenser coil. This material blocks air-flow to the coil similar to having a dirty
coil!
If you keep the Condenser clean you will minimize your service expense and lower your
electrical costs. Failure to maintain a clean condenser coil can initially cause high
temperatures and excessive run times. Continuous operation with dirty or clogged
condenser coils can result in compressor failure.

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WARNING
When preparing the appliance for disposal, remove the door to reduce the risk of
children getting trapped. Leave the shelves in place so that children may not easily
climb inside.
To put back the condensing unit in its place, slide in the unit carefully. BE SURE DRAIN
PIPE IS LOCATED OVER THE PAN. Replace front bottom panel, plug the appliance
into the electrical outlet, then move the power switch to the "ON" position.
3.3 Machine disposal
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 certified service personnel.

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WARNING
To ensure proper operation of equipment, it is recommended that the unit is on for
24 hours prior to the introduction of product.
TROUBLESHOOTING CHART
4.1 Troubleshooting chart
Follow the next steps before requesting warranty service. Failure to do so may result in
service charges for you and may void your warranty:
1) Refrigerator doesn’t work:
a. Check power supply on, plugged into electrical outlet, power switch on.
b. Check that the ON/OFF switch is in the ON position.
2) Refrigerator doesn’t reach temperature:
a. Check that the controller doesn´t display any alarm, if it there is an alarm present, call
technical service to receive assistance.
b. Check the temperature setpoint on the controller. The default setpoint is 32°F.
On HDD-1-24 Check the dial position. The default position is 5
c. Check if the compressor is running.
d. Ensure Equipment is placed in a ventilated place and is a minimum of 2 inches from
any other appliance and away from any heat source. The maximum ambient
temperature is 100°F.
e. To ensure proper air flow, product must not be placed higher than the maximum
level mark located on the internal wall of the unit.
f. Check that the gasket is in good condition and door is sealed.
g. Check that the evaporator fan is working.
h. Allow the appliance to cool down prior to loading it with products.
3) There is water under the refrigerator:
a. Check that the drain pipe is over the pan/check condenser compartment.
c. Check that the cabinet is level.