Hoshizaki DKM-500BAH User manual

Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Models
DKM-500BAH
DKM-500BWH
Crescent Cube Icemaker / Dispenser
Hoshizaki America, Inc.
Issued: 3-24-2006
Revised: 1-28-2008
INSTRUCTION MANUAL
™


IMPORTANT
Only qualied 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. Failure to install, operate, and
maintain the equipment in accordance with this manual may adversely affect
safety, performance, and warranty coverage.
HOSHIZAKI provides this manual primarily to assist qualied service technicians in the
installation, maintenance, and service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, write, or send an e-mail message to the HOSHIZAKI Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 3069
Attn: HOSHIZAKI Technical Support Department
Phone: 1-800-33-1940 Technical Service
(770) 487-331
Fax: [phone]
[phone]
E-mail: [email protected]
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.

3
CONTENTS
I. Specications ..................................................................................................................... 4
A. Nameplate Rating ......................................................................................................... 4
1. DKM-500BAH .......................................................................................................... 4
. DKM-500BWH ......................................................................................................... 5
B. Dimensions/Connections .............................................................................................. 6
1. DKM-500BAH .......................................................................................................... 6
. DKM-500BWH ......................................................................................................... 7
II. Installation and Operating Instructions .............................................................................. 8
A. Checks Before Installation ............................................................................................ 8
B. Location ........................................................................................................................ 8
C. Setup ............................................................................................................................ 9
D. Electrical Connection .................................................................................................... 9
E. Water Supply and Drain Connections ......................................................................... 10
F. Final Checklist ............................................................................................................ 1
G. Startup ........................................................................................................................ 13
H. How to Remove Panels .............................................................................................. 14
III. Cleaning and Maintenance ............................................................................................. 15
A. Cleaning and Sanitizing Instructions ........................................................................... 15
1. Cleaning Procedure – Icemaker ............................................................................ 15
. Sanitizing Procedure – Icemaker .......................................................................... 16
3. Cleaning Procedure – Storage Bin ........................................................................ 17
4. Sanitizing Procedure – Storage Bin ...................................................................... 17
B. Maintenance Instructions ............................................................................................ 18
C. Preparing the Icemaker For Long Storage ................................................................. 18
IMPORTANT
This manual should be read carefully before the icemaker is installed and
operated. Only qualied service technicians should install, service, and
maintain the icemaker. Read the warnings contained in this booklet carefully as
they give important information regarding safety. Please retain this booklet for
any further reference that may be necessary.

4
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
ICE MAKER
946Z
I. Specications
A. Nameplate Rating
1. DKM-500BAH
See the nameplate for electrical and refrigeration specications. This nameplate is located
on the rear panel.
Since this nameplate is located on the rear panel of the icemaker, it cannot be read when
the back of the icemaker is against a wall or against another piece of kitchen equipment.
Therefore, the necessary electrical and refrigeration information is also on the rating label,
which can be easily seen by removing only the front panel of the icemaker.
We reserve the right to make changes in specications and design without prior notice.
HOSHIZAKI ICE MAKER
MODEL NUMBER DKM-500BAH
SERIAL NUMBER
AC SUPPLY VOLTAGE 115-120/60/1
AMPERES 12 AMPS
DESIGN PRESSURE HI-467PSI LO-170PSI
REFRIGERANT 404A 2 LBS

5
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
ICE MAKER
946Z
2. DKM-500BWH
HOSHIZAKI ICE MAKER
MODEL NUMBER DKM-500BWH
SERIAL NUMBER
AC SUPPLY VOLTAGE 115-120/60/1
AMPERES 12 AMPS
DESIGN PRESSURE HI-427PSI LO-230PSI
REFRIGERANT 404A 1 LB 2 OZ
See the nameplate for electrical and refrigeration specications. This nameplate is located
on the rear panel.
Since this nameplate is located on the rear panel of the icemaker, it cannot be read when
the back of the icemaker is against a wall or against another piece of kitchen equipment.
Therefore, the necessary electrical and refrigeration information is also on the rating label,
which can be easily seen by removing only the front panel of the icemaker.
We reserve the right to make changes in specications and design without prior notice.

6
B. Dimensions/Connections
1. DKM-500BAH
Unit: mm [inches]

7
2. DKM-500BWH
Unit: mm [inches]

8
II. Installation and Operating Instructions
A. Checks Before Installation
IMPORTANT
1. Install in accordance with all applicable national, state, and local regulations.
. Remove the shipping carton, tape, and packing material. If any are left in the
icemaker, it will not work properly.
3. Ensure all components, fasteners, and thumbscrews are securely in place
after installation.
1) Remove the front panel to prevent damage when installing the icemaker. See "II.C.
Setup" for details.
) Remove the package containing the accessories.
3) Remove the protective plastic lm from the panels. If the icemaker is exposed to the
sun or to heat, remove the lm after the icemaker cools.
4) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blade (if applicable) turns freely.
5) Check that the compressor is snug on all mounting pads.
6) See the nameplate on the rear panel and check that your voltage supplied corresponds
with the voltage specied on the nameplate.
B. Location
CAUTION
1. 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
+3°C). Operation of the icemaker, for extended periods, outside of these
normal temperature ranges may affect icemaker performance.
. This icemaker will not work at sub-freezing temperatures. To prevent damage
to the water supply line, drain the icemaker if the air temperature is going to
go below 3°F (0°C). See "III.C. Preparing the Icemaker for Long Storage."
For best operating results:
• Icemaker should not be located next to ovens, grills, or other high heat producing
equipment.
• Avoid choosing a site where dripping is not allowed.
• On air-cooled model, allow at least 1" (30 cm) clearance on the left side and
6" (15 cm) clearance at rear, right side, and top for proper air circulation and ease of
maintenance and/or service should they be required. On water-cooled model, allow 6"
(15 cm) clearance at rear, sides, and top.
• Location should provide a rm and level foundation for the equipment.

9
C. Setup
1) Remove the front panel to avoid damaging it during setup. To remove the panel,
remove the screw, lift up and slightly towards you. Disconnect the connector from the
control box. Although not generally necessary for installation, if you need to remove
other panels, see "II.H. How to Remove Panels."
) Attach the 4 adjustable legs provided to the bottom of the icemaker.
3) Position the icemaker in the selected permanent location.
4) Level the icemaker in both the left-to-right and front-to-rear directions. Adjust the legs to
make the icemaker level.
Fig. 1
Adjustable Leg Control Box
Connector
Screw
Front Panel Side Panel (Lower)
(removed in illustration
for clarity)
D. Electrical Connection
WARNING
1. The GREEN ground wire in the factory-installed power cord is connected
to a screw on the inside side panel where the cord enters the machine. If it
becomes necessary to remove or replace the power cord, be sure to connect
the power cord's ground wire to this screw upon reattachment.
. Do not use an extension cord.
• Electrical connections must be installed in accordance with applicable national, state,
and local regulations.
• Usually an electrical permit and services of a licensed electrician are required.
• The icemaker requires an independent power supply. See the nameplate for proper
voltage and breaker/fuse size.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.

10
E. Water Supply and Drain Connections
See Fig. 2
CAUTION
To prevent damage to equipment, do not operate the icemaker when the water
supply is off, or if the pressure is below 10 PSIG. Do not run the icemaker until
the proper water pressure is reached.
• This icemaker must be installed in accordance with applicable national, state, and local
regulations.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• Water supply inlet is 1/" female pipe thread (FPT).
Note: On water-cooled model, two 1/" water supply inlets are provided. One is for the
icemaker, and the other is for the water-cooled condenser.
• A water supply line shut-off valve and drain valve should be installed. A minimum of
3/8" OD copper tubing is recommended for the water supply lines.
• Water supply pressure should be a minimum of 10 PSIG and a maximum of 113 PSIG. If
the pressure exceeds 113 PSIG, the use of a pressure reducing valve is required.
• The minimum recommended drain line is 3/4" OD hard pipe.
• Icemaker and storage bin drain outlets are 3/4" FPT. The icemaker drain line must be run
separately from the storage bin drain line.
Note: Water-cooled model also has a 3/8" FPT condenser drain outlet. Drain line must
be run separately.
• Drain lines must have 1/4" fall per foot ( cm per 1 m) on horizontal runs to get a good
ow. A vented tee connection is also required for proper ow.
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of
 vertical inches (5 cm) should be between the end of the drain pipes from the icemaker,
the storage bin, and the water-cooled condenser (if applicable) and the oor drain.
• Water-Cooled Model Only: In some areas, a back ow preventer may be required in the
cooling water circuit.