Hoshizaki Hoshizaki America, Inc. Self-Contained Crescent Cuber Models KM-255BAH KM-255BWH “A Superior Degree of Reliability” INSTRUCTION MANUAL www.hoshizaki.
IMPORTANT Only qualified service technicians should attempt to install, service or maintain this icemaker. 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 icemaker 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 service of the icemaker.
• Please review this manual. It should be read carefully before the icemaker is installed and operated. Only qualified service technicians should install, service and maintain the icemaker. This manual should be made available to the technician prior to installation, maintenance or service. • Keep this manual with the icemaker for later reference. CONTENTS I. Specifications...................................................................................................................... 4 A.
I. Specifications A. Nameplate Rating 1. KM-255BAH (air-cooled) HOSHIZAKI ICE MAKER MODEL NUMBER SERIAL NUMBER AC SUPPLY VOLTAGE AMPERES DESIGN PRESSURE REFRIGERANT KM-255BAH 115/60/1 9 AMPS HI-467PSI LO-240PSI 404A 1 LB 0.8 OZ. MOTOR-COMPRESSOR THERMALLY PROTECTED, NOT INTENDED FOR OUTDOOR USE! Hoshizaki America, Inc. Peachtree City, GA www.hoshizaki.com LISTED ICE MAKER 946Z See the nameplate for electrical and refrigeration specifications.
2. KM-255BWH (water-cooled) HOSHIZAKI ICE MAKER MODEL NUMBER SERIAL NUMBER AC SUPPLY VOLTAGE AMPERES DESIGN PRESSURE REFRIGERANT KM-255BWH 115/60/1 9 AMPS HI-427PSI LO-240PSI 404A 1 LB 0.8 OZ Intentionally Left Blank MOTOR-COMPRESSOR THERMALLY PROTECTED, NOT INTENDED FOR OUTDOOR USE! Hoshizaki America, Inc. Peachtree City, GA www.hoshizaki.com LISTED ICE MAKER 946Z See the nameplate for electrical and refrigeration specifications.
B. Dimensions/Connections 1. KM-255BAH Unit: mm.
2. KM-255BWH Unit: mm.
II. Installation And Operating Instructions A. Checks Before Installation IMPORTANT 1. Remove shipping carton, tape(s) and packing. If packing material is left in the icemaker, it will not work properly. 2. Ensure all components, fasteners and thumbscrews are securely in place. 1) Remove the top and front panels to prevent damage when installing the icemaker. (See "B. How to Remove Panels") 2) Remove the package containing the accessories. 3) Remove the protective plastic film from the panels.
C. Location WARNING This icemaker is not intended for outdoor use. Normal operating ambient temperature should be within +45°F to +100°F (+7°C to +38°C); Normal operating water temperature should be within +45°F to +90°F (+7°C to +32°C). Operation of the icemaker, for extended periods, outside of these normal temperature ranges may affect production capacity. For best operating results: • Icemaker should not be located next to ovens, grills or other high heat producing equipment.
E. Water Supply and Drain Connections See Fig. 2 CAUTION To prevent damage to equipment, do not operate this icemaker when the water supply is OFF, or if the pressure is below 10 PSIG (0.7 bar). Do not run the icemaker until the proper water pressure is reached. • Water supply inlet is 1/2" female pipe thread (FPT). Note: On water-cooled model, two water supply inlets are provided. One is the water supply inlet for icemaking, and the other (1/2" FPT) is for the water-cooled condenser.
KM-255BAH Icemaker Shut-off Valve Water Supply Inlet 1/2" FPT Drain Valve Drain Outlet 3/4" FPT Two-inch (5 cm) air gap Separate piping to approved drain. Leave a two-inch (5 cm) vertical air gap between the end of each pipe and the drain. Floor Drain KM-255BWH Condenser Water Inlet 1/2" FPT Icemaker Shut-off Valve Water Supply Inlet 1/2" FPT Condenser Water Outlet 1/2" FPT Drain Valve Drain Outlet 3/4" FPT Shut-off Valve Drain Valve Fig.
F.
G. Startup CAUTION 1. All parts are factory-adjusted. Improper adjustments may result in failure. 2. If the unit is turned off, wait for at least 3 minutes before restarting the icemaker to prevent damage to the compressor. 1) Open the water supply line shut-off valve. 2) Remove the front panel. 3) Move the control switch on the control box to the "ICE" position. 4) Let the icemaker run for 10 minutes, then move the control switch to the "OFF" position. 5) Open the door.
III. Cleaning and Maintenance Instructions IMPORTANT Ensure all components, fasteners and thumbscrews are securely in place after any maintenance or cleaning is done to the equipment. A. Cleaning WARNING 1. Hoshizaki recommends cleaning this unit at least once a year. More frequent cleaning, however, may be required in some existing water conditions. 2. To prevent injury to individuals and damage to the icemaker, do not use ammonia type cleaners. 3.
17) Remove the bin control switch housing at the back of the water tank. It is snapped in place. Pinch it and then pull down. See Fig. 4. Water Tank Bin Control Switch Housing Fig. 4 Bracket (L) Bracket (R) 18) Disconnect the suction hose. Next, remove the water tank by pressing down on the snaps on Bracket (L) and Bracket (R) and pulling the tank towards you. See Fig. 5. Water Tank Fig.
2. Sanitizing Procedure - Following Cleaning Procedure 1) Dilute approximately 0.5 fl. oz. (15 ml or 1 tbs) of a 5.25% sodium hypochlorite solution (chlorine bleach) with 1 gallon (3.8 l) of warm water. Using a chlorine test strip or other method, confirm that you have a concentration of about 200 ppm. 2) Soak the removed parts from step 25 above in a clean container containing the sanitizing solution. After allowing the parts to soak for 10 minutes, wash them with the solution.
3. Air Filter (air-cooled model only) The plastic mesh air filter removes dirt and dust from the air, and keeps the condenser from getting clogged. As the filter gets clogged, the icemaker’s performance will be reduced. Check the filter at least twice a month. When it is clogged, use warm water and a neutral cleaner to wash the filter. 4. Condenser (air-cooled model only) Check the condenser once a year and clean if required by using a brush or vacuum cleaner.
13) Move the control switch to the OFF position. 14) Reconnect the suction hose and harvest water valve hose. 15) Close the potable water supply line drain valve. 16) Remove all ice from the storage bin and clean the bin. 17) Turn off the power supply at the breaker box. 18) If the icemaker is water cooled, proceed to the next section to drain the condenser. If the icemaker is air cooled, place the panels back in their correct positions. The procedure is complete.
HOSHIZAKI AMERICA, INC. 618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.
