Hoshizaki KM-600MAH User manual

Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Model
KM-600MAH
Modular Crescent Cuber
Hoshizaki America, Inc.
Issued: 6-24-2008
Revised: 7-23-2008
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
B. Dimensions / Connections ............................................................................................ 5
II. Installation and Operating Instructions .............................................................................. 6
A. Checks Before Installation ............................................................................................ 6
B. How to Remove Panels ................................................................................................ 6
C. Location ........................................................................................................................ 7
D. Setup ............................................................................................................................ 7
E. Electrical Connection .................................................................................................... 8
F. Water Supply and Drain Connections ........................................................................... 9
G. Final Checklist ........................................................................................................... 11
H. Startup ........................................................................................................................ 1
III. Cleaning and Maintenance ............................................................................................ 13
A. Cleaning and Sanitizing Instructions ........................................................................... 13
1. Cleaning Procedure ............................................................................................... 14
. Sanitizing Procedure - Following Cleaning Procedure .......................................... 15
B. Maintenance ............................................................................................................... 16
C. Preparing the Icemaker for Long Storage .................................................................. 16
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 WITHOUT
STORAGE MEANS
946Z COMPONENT
I. Specications
A. Nameplate Rating
1. KM-600MAH (air-cooled)
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 specifications and design without prior notice.
HOSHIZAKI ICE MAKER
MODEL NUMBER KM-600MAH
SERIAL NUMBER
AC SUPPLY VOLTAGE 115-120/60/1
COMPRESSOR 115-120V 10.3RLA 70LRA
PUMP 120V 0.5FLA 10W
FAN 120V 1.0FLA 30W
OTHER 115-120V 0.2A
MAXIMUM FUSE SIZE 15 AMPS
MAX. HACR BREAKER(USA ONLY) 15 AMPS
MAX. CIRC. BREAKER (CANADA ONLY) 15 AMPS
MINIMUM CIRCUIT AMPACITY 15 AMPS
DESIGN PRESSURE HI - 467PSI LO - 230PSI
REFRIGERANT 404A 1 LB 11 OZ

5
Unit: mm (inches)
B. Dimensions / Connections
1. KM-600MAH

6
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 panels to prevent damage when installing the icemaker. See "II.B. How to
Remove Panels."
) 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 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.
7) This icemaker needs a storage bin. The recommended storage bin is Hoshizaki Ice
Storage Bin, Model B-300 series.
B. How to Remove Panels
See Fig. 1
• Front Panel: Remove the screw. Lift up and towards
you.
• Top Panel: Lift up at front slightly, push rearward,
and lift off.
• Side Panel (R): Remove the screw. Slide forward
slightly, and lift off.
• Insulation Panel: Lift up slightly, and pull towards you.
• Base Cover: Lift up slightly, and pull towards you.
Fig. 1

7
Icemaker
Bin
Bolts
Mounting
Brackets
C. 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.
• Allow 6" (15 cm) clearance at rear, sides, and top for proper air circulation and ease of
maintenance and/or service should they be required.
• Location should provide a rm and level foundation for the equipment.
D. Setup
1) Unpack the storage bin, and attach the 4 adjustable legs provided (bin accessory) to
the bottom of the storage bin.
) Position the storage bin in the selected permanent location.
3) Place the icemaker on top of the storage bin.
4) Secure the icemaker to the storage bin using the  mounting brackets and the bolts
provided. See Fig. .
5) Level the icemaker and storage bin in both the left-to-right and front-to-rear directions.
Adjust the storage bin legs to make the icemaker level.
6) Replace the panels in their correct positions.
Fig. 2

8
E. Electrical Connection
WARNING
1. Electrical connection must be made in accordance with the instructions on
the "WARNING" tag, provided with the pig tail leads in the junction box.
. Electrical connections must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could cause severe
injury to individuals or extensive damage to equipment.
3. Be sure to install a proper ground to the icemaker.
• Electrical connections must be installed in accordance with applicable national, state, and
local regulations.
• 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.
• The white lead must be connected to the neutral conductor of the power source.
Miswiring results in severe damage to the icemaker. See Fig. 3.
• The opening for the power supply connection is 7/8" DIA to t a 1/" trade size conduit.
• Usually an electrical permit and services of a licensed electrician are required.
Fig. 3
8"3/*/(
&-&$53*$"-$0//&$5*0/
5IFXIJUFMFBENVTUCFDPOOFDUFE
UPUIFOFVUSBMDPOEVDUPSPG
UIFQPXFSTPVSDF
.JTXJSJOHSFTVMUTJOTFWFSF
EBNBHFUPUIFJDFNBLFS
4FF'JHCFMPX


+6/$5*0/#09

7


#308/
8)*5&
-
/

9
F. Water Supply and Drain Connections
See Fig. 4
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.
• Water supply inlet is 1/" female pipe thread (FPT).
• 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 drain outlet is 3/4" FPT. Condensation drain outlet is a 3/8" OD stainless tube.
The icemaker and condensation drain line(s) must be run separately from the storage bin
drain line.
• 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 condensation drain, the storage bin and the oor drain.
• 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.

10
KM-600MAH
Icemaker
Water Supply Inlet
1/2" FPT
Condensation
Drain Outlet
3/8" OD
Stainless Tube
Icemaker Water Supply Line
Shut-Off Valve
Icemaker Water
Supply Line
Drain Valve
Bin Drain Outlet
3/4" FPT
Bin
Icemaker
Icemaker
Drain Outlet
3/4" FPT
Separate piping to approved
drain. Leave a two inch (5 cm)
vertical air gap between the
end of each pipe and the drain.
Two-inch
(5 cm) air
gap
Floor
Drain
Fig. 4

11
G. Final Checklist
1) Is the icemaker level?
) Is the icemaker in a site where the ambient temperature is within +45°F to +100°F
(+7°C to +38°C) and the water temperature within +45°F to +90°F (+7°C to +3°C) all
year around?
3) Is there at least 6" (15 cm) clearance around the icemaker for maintenance or service?
4) Have the shipping carton, tape, and packing material been removed from the
icemaker? Is the cube guide in the correct position?
5) Are all components, fasteners, and thumbscrews securely in place?
6) Have all electrical and piping connections been made?
7) Has the power supply voltage been checked or tested against the nameplate rating?
Has a proper ground been installed to the icemaker?
8) Are the water supply line shut-off valve and drain valve installed? Has the water
supply pressure been checked to ensure a minimum of 10 PSIG and a maximum of
113 PSIG?
Note: The icemaker may stop running when the water supply is off, or if the pressure
is below 10 PSIG. When the proper water pressure is reached, the icemaker
automatically starts running again.
9) Are the compressor hold-down bolts snug? Have the refrigerant lines been checked to
make sure they do not rub or touch other lines or surfaces?
10) Has the bin control switch been checked for correct operation? When the icemaker is
running, hold an ice cube in contact with the bulb. The icemaker should stop within 3 to
10 seconds. Adjustment may be needed, particularly at higher altitude locations.
11) Has the end user been given the instruction manual, and instructed on how to operate
the icemaker and the importance of the recommended periodic maintenance?
1) Has the end user been given the name and telephone number of an authorized service
agent?
13) Has the warranty card been lled out and forwarded to the factory for warranty
registration?

1
H. Startup
CAUTION
1. All parts are factory-adjusted. Improper adjustments may result in failure.
. If the icemaker is turned off, wait for at least 3 minutes before restarting the
icemaker to prevent damage to the compressor.
3. Do not operate the icemaker in the "WASH" position without water in the
water tank. This will cause damage to the water pump seal.
1) Open the water supply line shut-off valve.
) Remove the front panel.
3) Move the control switch on the control box to the "ICE" position.
4) Replace the front panel in its correct position.
5) Turn on the power supply, and allow the icemaker to operate for a total of 10 minutes.
6) Turn off the power supply, and remove the front panel and the base cover.
7) Remove one end of the pump tubing to drain the water tank. See Fig. 5.
8) After the water tank has drained, replace the pump tubing in its correct position.
9) Clean the storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning.
10) Replace the base cover and the front panel in their correct positions.
11) Turn on the power supply to start the automatic icemaking process.
Fig. 5

13
III. Cleaning and Maintenance
IMPORTANT
Ensure all components, fasteners, and thumbscrews are securely in place after
any cleaning or maintenance is done to the equipment.
A. Cleaning and Sanitizing Instructions
WARNING
1. Hoshizaki recommends cleaning this icemaker at least once a year. More
frequent cleaning, however, may be required in some existing water
conditions.
. To prevent injury to individuals and damage to the icemaker, do not use
ammonia type cleaners.
3. Always wear liquid-proof gloves to prevent the cleaning and sanitizing
solutions from coming into contact with skin.
4. Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
5. Never run the icemaker when the water tank is empty.
IMPORTANT
1. The cleaning valve is used to allow solution ow to the inside of the
evaporator during the cleaning and sanitizing operation. It should be closed
for all icemaking operation. The compressor will not operate unless this valve
is completely closed.
. To open the cleaning valve, the valve handle should be parallel to the valve
body. To close the valve, the valve handle should be at a right angle to the
valve body.

14
1. Cleaning Procedure
1) Dilute 16 . oz. (473 ml) of recommended cleaner Hoshizaki "Scale Away" or
"LIME-A-WAY" (Economics Laboratory, Inc.) with 3 gal. ( 11 l) of warm water.
) Remove all ice from the evaporator and the storage bin.
Note: To remove cubes on the evaporator, turn off the power supply and turn it back on
after 3 minutes. The harvest cycle starts and the cubes will be removed from the
evaporator.
3) Turn off the power supply.
4) Remove the front panel and the base cover, and then remove the insulation panel by
lifting up the panel slightly and pulling it towards you.
5) Remove one end of the pump tubing. Drain the water tank. Replace the pump tubing in
its correct position. See Fig. 5.
6) In bad or severe water conditions, clean the oat switch assembly as described below.
Otherwise, continue to step 7.
a. Disconnect the vent tube and the ush tube from the top of the oat switch, then
remove the oat switch and rubber boot.
b. Remove the retainer rod from the bottom of the oat switch assembly, then remove
the oat. Be careful not to bend the retainer rod excessively when removing it.
c. Wipe down the oat switch assembly's housing, shaft, oat, and retainer rod with
cleaning solution. Clean the inside of the rubber boot and hose with cleaning
solution. Rinse the parts thoroughly with clean water.
d. Reassemble the oat switch assembly and replace it and the rubber boot in their
correct positions. Reconnect the vent tube and the ush tube.
7) Pour the cleaning solution into the water tank.
8) Fully open the cleaning valve on the left side wall of the machine compartment.
9) Move the control switch on the control box to the "WASH" position.
10) Replace the insulation panel and the front panel in their correct positions.
11) Turn on the power supply to start the washing process.
1) Turn off the power supply after 30 minutes.
13) Remove the front panel.
14) Remove one end of the pump tubing. Drain the water tank. Replace the pump tubing in
its correct position.
15) Move the control switch to the "ICE" position.
16) Close the cleaning valve.
Note: The icemaker will not operate unless the cleaning valve is completely closed.
17) Replace the front panel in its correct position.
18) Turn on the power supply to ll the water tank with water.
19) Turn off the power supply after 3 minutes.
0) Remove the front panel and fully open the cleaning valve.
1) Move the control switch to the "WASH" position.

15
) Replace the front panel in its correct position.
3) Turn on the power supply to rinse off the cleaning solution.
4) Turn off the power supply after 5 minutes.
5) Remove the front panel.
6) Remove one end of the pump tubing. Drain the water tank. Replace the pump tubing in
its correct position.
7) Repeat steps 15 through 6 three more times to rinse thoroughly.
Note: If you do not sanitize the icemaker, go to step 10 in ". Sanitizing Procedure."
2. Sanitizing Procedure - Following Cleaning Procedure
1) Dilute a 5.5% sodium hypochlorite solution (chlorine bleach) with warm water. (Add
1.5 . oz. (44 ml) of sanitizer to 3 gal. (11 l) of water.)
) Remove the insulation panel.
3) Pour the sanitizing solution into the water tank.
4) Replace the insulation panel and the front panel in their correct positions.
Note: Make sure that the control switch is in the "WASH" position and the cleaning
valve is open.
5) Turn on the power supply to start the sanitizing process.
6) Turn off the power supply after 15 minutes.
7) Remove the front panel.
8) Remove one end of the pump tubing. Drain the water tank. Replace the pump tubing in
its correct position.
9) Repeat steps 15 through 6 in "1. Cleaning Procedure" two times to rinse thoroughly.
10) Close the cleaning valve.
11) Move the control switch to the "ICE" position.
1) Replace the front panel and the base cover in their correct positions.
13) Clean the storage bin using a neutral cleaner. Rinse thoroughly after cleaning.
14) Turn on the power supply to start the automatic icemaking process.

16
B. Maintenance
IMPORTANT
This icemaker must be maintained individually, referring to the instruction
manual and labels provided with the icemaker.
1. Stainless Steel Exterior
To prevent corrosion, wipe the exterior occasionally with a clean, soft cloth. Use a
damp cloth containing a neutral cleaner to wipe off oil or dirt build up.
2. Storage Bin and Scoop
• Wash your hands before removing ice. Use the plastic scoop provided (bin accessory).
• The storage bin is for ice use only. Do not store anything else in the storage bin.
• Clean the scoop and the storage bin liner using a neutral cleaner. Rinse thoroughly
after cleaning.
3. Air Filters
Plastic mesh air lters remove dirt and dust from the air, and keep the condenser from
getting clogged. As the lters get clogged, the icemaker’s performance will be reduced.
Check the lters at least twice a month. When clogged, use warm water and a neutral
cleaner to wash the lters.
4. Condenser
Check the condenser once a year, and clean the coil if required by using a brush or
vacuum cleaner. More frequent cleaning may be required depending on location.
C. Preparing the Icemaker for Long Storage
CAUTION
When shutting off the icemaker for an extended time, drain out all water from
the water tank and remove the ice from the storage bin. The storage bin should
be cleaned and dried. Drain the icemaker to prevent damage to the water
supply line at sub-freezing temperatures, using air or carbon dioxide. Shut off
the icemaker until the proper ambient temperature is resumed.
When the icemaker is not used for two or three days, it is sufcient to only move the control
switch to the "OFF" position, unless the icemaker will be at sub-freezing temperatures.
1) Turn off the power supply and remove the front panel and right side panel.
) Close the icemaker water supply line shut-off valve and open the icemaker water
supply line drain valve. See Fig. 4.
3) Allow the line to drain by gravity.
4) Attach a compressed air or carbon dioxide supply to the icemaker water supply line
drain valve.
5) Make sure at least 3 minutes have elapsed since you turned off the power supply.
Make sure the control switch is in the "ICE" position. Replace the front panel in its
correct position and turn on the power supply.

17
6) Blow the icemaker water supply line out using the compressed air or carbon dioxide
supply.
7) Close the icemaker water supply line drain valve.
3. Drain the water tank:
1) Turn off the power supply and remove the front panel.
) Move the control switch to the "OFF" position.
3) Remove the base cover.
4) Remove one end of the pump tubing. Drain the water tank. Replace the pump tubing in
its correct position. See Fig. 5.
5) Remove all ice from the storage bin. Clean the storage bin using a neutral cleaner.
Rinse thoroughly after cleaning.
6) Replace the front panel in its correct position.

18
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL [phone] FAX [phone] www.hoshizaki.com 91A1KQ10B
HOSHIZAKI AMERICA, INC.