Hoshizaki HUF40A, HWR96AD, HUR96AD, HUF68AD, HWF68AD Instruction Manual

Hoshizaki America, Inc.

Hoshizaki

Commercial Refrigerators & Freezers
Undercounter & Worktop Series

“A Superior Degree

of Reliability”

www.hoshizaki.com

Models

Refrigerators
HUR40A(-D) HWR40A(-D)
HUR68A(-D) HWR68A(-D)
HUR96A(-D) HWR96A(-D)

Freezers
HUF40A(-D) HWF40A(-D)
HUF68A(-D) HWF68A(-D)

INSTRUCTION MANUAL

Issued: 6-24-2003
Revised: 7-8-2005

IMPORTANT

Only qualified service technicians should attempt to install, service or maintain
this unit. No installation, service or maintenance should be undertaken until the
technician has thoroughly read this Instruction Manual. Likewise, the owner/
manager should not proceed to operate the unit until the installer has instructed
them on its proper operation.

HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
installation, maintenance and basic service of the unit.

Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call or write 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: [phone] Technical Service

[phone]

Fax: [phone]

[phone]

Web Site: www.hoshizakiamerica.com

NOTE: To expedite assistance, all correspondence/communication MUST include

the following information:

• Model Number

• Serial Number

• Complete and detailed explanation of the problem

ENERGY STAR

®

Products earning the ENERGY STAR prevent greenhouse gas emissions by meeting strict
energy efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S.
Department of Energy. Several models of Hoshizaki undercounter and worktop models
have earned the ENERGY STAR. To easily determine if your unit has earned the ENERGY
STAR, see the nameplate attached to the right wall on the inside of the cabinet.

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• Please review this manual. It should be read carefully before the unit is installed and
operated. Only qualified service technicians should install, service and maintain the unit.
This manual should be made available to the technician prior to installation, maintenance
or service.

• Keep this manual with the unit for later reference.

CONTENTS

I. Installation Instructions ...................................................................................................... 5

A. Unpacking and Checks Before Installation .................................................................. 5

B. Opening and Removing the Front Panel ...................................................................... 6

C. Moving the Unit in a Narrow Elevator or Hallway......................................................... 6

D. Location ....................................................................................................................... 7

E. Setup............................................................................................................................ 7

F. Electrical Connection .................................................................................................... 8

G. Drain Connection ......................................................................................................... 9

H. Final Checklist ............................................................................................................. 9

II. Operating Instructions ..................................................................................................... 10

A. Operation - For Safety and Best Results .................................................................... 10

B. Startup ....................................................................................................................... 11

C. Food Storage ............................................................................................................. 12

D. Shutdown ................................................................................................................... 12

E. Electronic Control Operation ...................................................................................... 13

1. Temperature Display ............................................................................................. 13

2. Adjusting the Setpoint Temperature ...................................................................... 14

3. Alarm Codes ......................................................................................................... 14

4. Defrost .................................................................................................................. 14

5. Start-up Delay ...................................................................................................... 15

6. Compressor Short Cycle Timer ............................................................................ 15

7. Safety Devices...................................................................................................... 15

a) Pressure Switch ................................................................................................ 15

b) Compressor Protector........................................................................................ 15

c) Defrost Protection .............................................................................................. 15

8. Energy Saving Mode ............................................................................................ 15

F. Troubleshooting .......................................................................................................... 16

1. Unit Fails to Operate ............................................................................................. 16

2. Alarm Code Appears in Display ........................................................................... 17

3. Poor Cooling Performance .................................................................................... 18

4. Condensation ....................................................................................................... 18

5. Noise .................................................................................................................... 18

III. Cleaning and Maintenance Instructions ......................................................................... 19

A. Cleaning .................................................................................................................... 19

1. Exterior ................................................................................................................. 19

2. Interior .................................................................................................................. 19

3. Door/Drawer Gaskets ........................................................................................... 19

4. Shelves ................................................................................................................ 20

5. Air Filter ................................................................................................................ 20

6. Condenser ............................................................................................................ 20

7. Drawers ................................................................................................................ 20

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B. Maintenance .............................................................................................................. 20

1. Air Filter ................................................................................................................ 20

2. Power Supply Connection .................................................................................... 21

3. Other ..................................................................................................................... 21

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I. Installation Instructions

A. Unpacking and Checks Before Installation

CAUTION

Unit is heavy. Use care when lifting or positioning. Work in pairs when needed to
prevent injury to persons lifting and to prevent damage to the unit. Hold the
bottom of the unit. Do not hold doors/drawers; they could become deformed or
come off. Do not tilt the unit by more than 45°.

1) All tape and packaging should be removed from the machine prior to installation. The
equipment should be inspected for any damage which may have occurred during
shipment. Concealed damage claims must be filed with the carrier.

a) Visually check that the refrigerant lines do not rub or touch other lines or surfaces and

that the fan blades turn freely.

b) Check that the compressor is snug on all mounting pads.

2) Remove all accessory containers before discarding the packing materials. Dispose of all
packing materials in a proper and environmentally responsible manner.

3) Check for missing or damaged accessories.

4) To remove the unit from the pallet:

a) Move as close to the final location as possible.

b) Remove the bolts that secure the cabinet to the pallet.

c) Block the cabinet securely, at a height of 8 inches (203 mm) off the floor.

d) Attach the casters or adjustable legs to the bottom of the cabinet as necessary.

5) Remove the protective plastic film from the exterior and interior. If the unit has been

exposed to the sun or to heat, remove the film after the unit cools.

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B. Opening and Removing the Front Panel

1) Grip outer edge of the front panel near the bottom and top and pull open approximately
1/2 inch (13 mm) until it is disengaged.

2) Swing the panel open completely and lift up approximately 1/2 inch (13 mm) to remove
completely.

C. Moving the Unit in a Narrow Elevator or Hallway

Hoshizaki undercounter and worktop models have a cartridge type (removable) refrigeration
unit. When the space in an elevator or hallway is limited, the unit can be carried as follows:

1) Turn off the power supply, and unplug the unit.

2) Remove the front panel, then remove the

wire guard located below the display
panel.

3) Unhook the wiring connectors at the control

box, then remove the two hex-head M6
attachment nuts and the M5 bolt.

4) Very carefully slide out the refrigeration

unit. Support the evaporator as it clears the
evaporator case. Be careful not to damage
the refrigeration circuit tubing.

5) After taking out the refrigeration unit, secure the doors/drawers with tape.

Note: Remove all accessories from inside the cabinet.

6) Place the unit upright on a cart, and roll it

into the elevator.

7) Carry the unit to the installation site. Refit

the removed parts in the reverse order of
which they were removed.

Refrigeration Unit

Front Panel

Tape

Note:

• Before placing the unit upright on a
cart, lay a cloth on the cart to protect
the unit from damage.

• When standing or carrying the unit, be
sure to work in pairs.

WARNING

The installation must be carried out by qualified personnel in accordance with
this Instruction Manual. Improper installation may cause water leak, electric
shock or fire. After the installation, make a trial run to check for proper operation
and instruct the user on how to use and maintain the unit according to the
Instruction Manual.

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Cloth

D. Location

CAUTION

This unit is not intended for outdoor installation. The air temperature should be
within a 45°F (7°C) to 100°F (38°C) range. Extended periods of operation at
temperatures exceeding these limitations may cause unsatisfactory results.

For best operating results:

• The machine should be on a flat, level and solid (firm) foundation.

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

• The air temperature range at the location should be between 45°F (7°C) and 100°F (38°C).

• The unit should not be near ovens, grills, other high heat producing equipment or in direct
sunlight.

• The unit may be safely installed and operated flush with walls, but for maximum
performance, install a minimum of 4 inches (102 mm) from all walls.

• Allow at least 20 inches (50 cm) at the front for proper air circulation.

E. Setup

1) Position the unit in the selected location. For units with casters, no adjustment is
necessary. Units with legs can be levelled in both the front-to-back and side-to-side
directions. The feet are provided with hex flats in order to facilitate adjustment. Viewed
from the bottom, turn clockwise to lower each leg and counterclockwise to raise each
leg.

2) Install the shelves using the shelf support clips provided in the accessory pack. Shelves
are adjustable in one inch increments. Adjust to the height of stored items.

IMPORTANT

1. Casters must be installed flush to unit. If floor irregularity requires adjustment
of caster height, add caster shims as necessary (provided with unit) and
retighten casters completely.

2. Attach the shelf clips properly to make shelves level.

3. Slant shelves when placing into cabinet in order to clear door frame opening.

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