Hoshizaki Hoshizaki America, Inc. Commercial Refrigerators & Freezers Undercounter & Worktop Series Models Refrigerators HUR40A(-D) HWR40A(-D) HUR68A(-D) HWR68A(-D) HUR96A(-D) HWR96A(-D) Freezers HUF40A(-D) HWF40A(-D) HUF68A(-D) HWF68A(-D) “A Superior Degree of Reliability” INSTRUCTION MANUAL www.hoshizaki.
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.
• 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.
B. Maintenance .............................................................................................................. 20 1. Air Filter ................................................................................................................ 20 2. Power Supply Connection .................................................................................... 21 3. Other .....................................................................................................................
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.
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.
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).
F. Electrical Connection Cord-connected units should only be plugged into a 115 volt, 60 Hz circuit with a national and local electrical code approved, grounded wall receptacle. A separate circuit with its own circuit breaker (HACR type) or fuse (LP-CC type) should be provided. Refer to the nameplate, located inside the cabinet, for the proper electrical specifications. Hardwired units should only be wired into the proper conduit, with its own circuit breaker (HACR type) or fuse (LP-CC type).
G. Drain Connection This unit is provided with an energy efficient automatic condensate water disposal system and normally requires no drain connection. H.
II. Operating Instructions A. Operation - For Safety and Best Results IMPORTANT 1. Do not leave the doors/drawers open. 2. Open and close the doors/drawers with care. Doors/drawers opened too quickly or forcefully may cause injury or damage to the unit or surrounding equipment. Doors/drawers may be hard to open just after they have been closed. Try again after 15 seconds. 3. To prevent deformation or cracks, do not spray insecticide onto the plastic parts or let them come into contact with oil. 4.
WARNING Additional Warning For Units with Drawers 1. Do not hang on or push down on the drawers, and do not load any single drawer with more than 150 lb (68 kg) of product. 2. Depending on the weight of product in the drawers, secure the unit as necessary to prevent it from overturning. 3. Do not open more than one drawer at a time and never stand on the drawers. B. Startup WARNING Do not splash water directly onto the unit. It may cause short circuit, electric shock, corrosion or failure.
C. Food Storage • Do not block the air inlet and outlet with food, or cooling performance may be reduced. • If the cabinet temperature is set to maintain a subfreezing temperature, do not store vegetables or any foods that should not be frozen, or these foods may deteriorate. • Do not tightly pack the cabinet with food. Allow some space between items/containers to ensure good air flow. Also allow space between food product and interior surfaces. • Do not put warm or hot foods in the unit.
E. Electronic Control Operation The display panel is located on the face of the refrigeration circuit, behind the front panel. Upon opening the front panel, the display panel can be accessed. From the display panel, various controls and functions can be adjusted. Follow the instructions and warnings below and on the display panel for safe and efficient operation of the unit. 1. Temperature Display The factory setting is °F. To change the display to °C, follow the steps below.
button and the unmarked, blank button for 5 seconds. 3) Press and hold both the The cabinet temperature will be displayed using the newly saved temperature scale. 4) Affix the “°C” label supplied with the unit to the display panel, covering “°F” but not the display window. Note: The cabinet temperature is updated every 30 seconds. 2. Adjusting the Setpoint Temperature The setpoint temperature is the temperature at which the compressor turns on. To set the setpoint temperature, follow the steps below.
5. Start-up Delay The start circuit of the compressor is timed such that at power-up and during any compressor off-time, there will be at least a 2 minute delay before the compressor will start. 6. Compressor Short Cycle Timer There is a 2 minute minimum off-time and on-time for the compressor. Note: • Any time the compressor is started, it will keep running for a minimum of 2 minutes. • Any time the compressor is turned off, it will stay off for a minimum of 2 minutes.
F. Troubleshooting WARNING 1. If the unit does not work properly, turn OFF the power switch and unplug the unit or disconnect the main power source, and immediately contact an authorized Hoshizaki service company. To prevent possible electric shock or fire, do not keep the unit in operation. 2. This unit should be disassembled or repaired only by qualified service personnel to prevent the risk of injury, electric shock or fire. 3. Do not make any alterations to the unit.
2. Alarm Code Appears in Display If an error occurs, the alarm code and cabinet temperature are displayed in 1-second intervals. When an error occurs, check the error code and follow the instructions below. If more than one abnormal condition exists, alarm codes will be displayed in order of priority. Alarm Signals Alarm Code Problem High Temperature Alarm E1 Notes When temperature returns to setpoint range, alarm code “E1” will clear.
3. Poor Cooling Performance • Door(s)/drawers opened too often. • Door(s)/drawer left open. Close. • Too packed with food or air inlet/outlet blocked. Allow some space between items/ containers to ensure good air flow. • 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. • Cabinet temperature setting too high. Readjust it to a lower temperature. • Unit in defrost process.
III. Cleaning and Maintenance Instructions A. Cleaning WARNING 1. Do not splash water directly onto the unit. This might cause short circuit, electric shock, corrosion or failure. 2. When cleaning or inspecting the unit, turn OFF the Power Switch and unplug the unit or disconnect the main power source to prevent electric shock, by unexpected entrance of water into the unit, or injury by any moving parts. 3.
4. Shelves Remove and clean regularly. 5. Air Filter As the air filter becomes clogged with dirt or dust, the unit’s performance will be reduced. Do not operate the unit with the air filter removed. This will accelerate clogging of the condenser and result in failure. Check the filter at least twice each month. If it is dirty, use warm water and a neutral cleaner to wash the filter. To avoid damaging the air filter do not use water hotter than 104°F (40°C). The filter is located behind the front panel.
2. Power Supply Connection WARNING 1. Check periodically that the power cord plug blades and their vicinity are free of dust and that the plug is securely plugged into the receptacle. Dusty blades or a loose connection may cause electric shock or fire. 2. Do not damage the power cord. It should not be altered, jerked, bundled, weighed down, pinched, or tangled. Such actions could result in electric shock or fire. 3. The unit must have a separate power supply or receptacle of proper capacity.
HOSHIZAKI AMERICA, INC. 618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.
