Hoshizaki DD24 Manual

105/15 Rev. K143596
DIRECT DRAW BEER COOLERS
Installation, Operation and Maintenance Instructions
INSPECTION
When the equipment is received, all items should be carefully checked against the Bill
of Lading to ensure all crates and cartons have been received. Do not sign the freight
bill clear until the freight has been properly inspected for damage. All units should be
inspected for damage including concealed damage by uncrating immediately. If any
damage is found, it should be reported to the carrier at once, noted on the Bill of Lading
and a claim should be filed with the carrier. This equipment has been inspected and
tested in the manufacturing facility and has been crated in accordance with
transportation rules and guidelines. The manufacturer is not responsible for freight loss
or damages.
INSTALLATION
After removing the unit from the packaging, clean the interior and exterior surfaces of
the unit with soap and water and a rinse with clean water. Do not use chlorinated
cleaners on the surfaces as they can cause corrosion.
This unit is designed for indoor use only. Be sure to locate the unit where the floor can
support the weight of the unit and product installed inside of it. The refrigeration system
located at the bottom left of the unit requires free air access for proper operation. Allow
a minimum of seven (7) inches between the back of the cabinet and the wall. Do not
locate the unit next to heat generating equipment or in direct sunlight.
Confirm that the proposed electrical outlet has the correct voltage, frequency and
current carrying capacity for the requirements of the unit. This information is noted on
the data plate on the inside left wall of the unit. The unit should be isolated on a circuit.
Do not use an extension cord to get power to the unit. Improper electrical installations
will void the compressor warranty. To prevent shock and fire, be sure the unit is properly
grounded.
Local health codes may require that the unit be sealed to the floor with an NSF
approved silicone sealant if it is not on legs or casters. After the unit is set in its desired
location, simply apply a bead of sealant around the base of the unit and smooth it out.
The drain pan under the beer spigots requires a floor drain (except model DD24). The
drain line comes out the front of the unit and is terminated with two (2) ½” barbed fittings.
The installer will need to add a drain line from this fitting to a floor drain. Model DD24
has an internal drain bottle that captures the beer from the drain pan. This bottle needs
to be monitored and emptied as needed.
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205/15 Rev. K143596
It is recommended that the beer delivery system be installed by your local beer
distributor. Inside the unit (except on model DD24) there is a gas manifold to distribute
gas pressure to the kegs. All gas and beer lines, keg taps and gas pressure regulators
are not included but are supplied by your beer distributor. The installer will need to
route the gas supply line through the cabinet in the back of the compressor
compartment using one of the precut holes and cutting out the foam insulation. All units
except the DD24 will require a remote pressurized gas supply. The mobile model DD24
can accept a CO2 tank up to 5 pounds inside the cabinet and has a spring to hold the
tank in place.
The beer towers come complete with all required mounting hardware. Set the black
rubber gasket supplied with the tower in place on top of the cabinet aligning with the
four mounting holes. Set the tower in place on the cabinet top by aligning the four
mounting holes and secure the tower with the four screws provided. Inside the unit you
will find one inch plastic air hose(s) with a wire hook on the end. Remove the top cap of
the tower. Install the air hose up through the bottom of the tower and attach the wire
hook to the top of the insulating foam sleeve at the top of the tower. Replace the top
cap of the tower. This air hose supplies cool air to the tower to assure the beer remains
cold in the tower. Install the spigot tap on the tower. Do this for each tower.
OPERATION AND MAINTENANCE
This cooler is designed to maintain your product temperature within the most desirable
range of +34°F to +38°F. You can expect this temperature with the proper temperature
control setting and in a normal environment. It is important to remember that when the
product is delivered, it must be placed inside the cooler as soon as possible to avoid
excessive warm up. If this happens, it may take many hours for the temperature to be
reduced to the desirable range.
The temperature controller is located on the left end of the unit cooler. Turn the control
clockwise for cooler temperatures and counterclockwise for warmer temperatures. Allow
the unit several hours to respond to temperature control adjustments.
There is a light with an on/off switch located on the unit cooler (except for model DD24).
This equipment is intended for the storage and display of non-potentially hazardous
bottled or can product only.
Cleaning
Beginning with the initial installation, the interior surfaces of the cabinet should be
periodically cleaned with a solution of warm water and baking soda. This solution will
remove any odors from spillage that has occurred. The exterior of the cabinet should
also be cleaned frequently with a commercial stainless steel cleaner, glass cleaner or
mild soap solution. Do not use chlorinated cleaners on any surfaces.
Note: do not use stainless steel cleaners or other solvent-based chemicals on the
plastic parts (door handle or trim strips) as they can cause failure. Use mild soap and
warm water on plastic parts.
Contact your local beer distributor for information on cleaning the beer lines.
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2940 Hwy 14 W, Rochester, MN 55901

305/15 Rev. K143596
Condenser Coil
Prior to cleaning the condenser coil disconnect the unit from power. Periodic cleaning
of the condenser coil will aid the heat transfer of the refrigeration system and increase
its efficiency. To accomplish this, remove the lower front grill from the cabinet. The
condenser coil is located behind the grill. Use a soft bristled brush to remove any dirt
particles that are on the fins of the condenser coil. Use a vacuum cleaner or
compressed air to remove the loosened particles. Replace the front grill and reconnect
the unit to power. Failure to clean the condenser coil can lead to performance loss and
compressor failure.
SPECIFICATIONS*
TROUBLESHOOTING
Problem
Remedy
Compressor will
not start
·Check the power cord and make sure it is plugged in and has power.
·Check the temperature controller. If it is in the “OFF” position, turn it clockwise to
set a desired temperature.
Poor performance
·Move the unit from direct sunlight.
·Move the unit away from heating devices.
·Install the unit in a well ventilated place, with at least 2 inches of clearance on all
sides.
·Clean the condenser if heavy dust is collected.
·Clear contents from blocking the inside air duct.
·Check the temperature controller for correct setting.
·Check the doors and be sure they are completely closed.
Unit noisy
·Install the unit on a level solid surface.
·Maintain 2 inches of clearance from the wall.
·Check for loose parts or mounting.
·Keep the tubing free from any contact to avoid rattle.
Condensation on
cabinet exterior
and/or floor
·Reduce humidity where the unit is installed.
·Check the drain line to make sure it is not disconnected inside the cabinet and it
drains into the drain pan in the compressor area.
* Above specifications are subjected to change without prior notice for quality improvement.
Model Doors # of Towers /
Taps Electrical Amps NEMA
Plug HP Refrigerant Keg
Capacity
DD24 1 1/1 115/60/1 3.3 5-15P 1/5 R-134a 1
DD59 2 2/2 115/60/1 3.3 5-15P 1/5 R-134a 2
DD69 2 2/2 115/60/1 5.0 5-15P 1/3 R-134a 3
DD80 3 2/3 115/60/1 6.0 5-15P 1/3 R-134a 4
DD95
3 2/4 115/60/1 6.3 5-15P 3/8 R-134a 5
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405/15 Rev. K143596
AIR HOSE & TOWER INSTALLATION SCHEMATIC DIAGRAM
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505/15 Rev. K143596
BEER LINE & CO2LINE INSTALLATION SCHEMATIC DIAGRAM
◈Assemble Beer Line & CO₂Line as above drawing.
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605/15 Rev. K143596
WIRING DIAGRAM
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2940 Hwy 14 W, Rochester, MN 55901

705/15 Rev. K143596
DD24 PARTS DIAGRAM
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2940 Hwy 14 W, Rochester, MN 55901

805/15 Rev. K143596
DD59 PARTS DIAGRAM
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2940 Hwy 14 W, Rochester, MN 55901

905/15 Rev. K143596
DD69 PARTS DIAGRAM
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10 05/15 Rev. K143596
DD79, DD95 PARTS DIAGRAM
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2940 Hwy 14 W, Rochester, MN 55901

11 05/15 Rev. K143596
DD SERIES PARTS LIST
Parts List continued on next page
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12 05/15 Rev. K143596
DD SERIES PARTS LIST (continued)
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2940 Hwy 14 W, Rochester, MN 55901