Hoshizaki Ice Maker KM 1400SWH 3 M User Manual

Hoshizaki America, Inc.  
Hoshizaki  
Modular Crescent Cuber  
Models  
KM-1400SWH/3-M  
INSTRUCTION MANUAL  
“A Superior Degree  
of Reliability”  
Issued: 5-26-2010  
 
IMPORTANT  
This manual should be read carefully before the icemaker is installed and  
operated. Only qualified 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.  
CONTENTS  
Important Safety Information ................................................................................................. 4  
I. Specifications...................................................................................................................... 5  
A. Nameplate Rating ......................................................................................................... 5  
1. KM-1400SWH-M (water-cooled marine) .................................................................. 5  
2. KM-1400SWH3-M (water-cooled marine)................................................................ 6  
B. Dimensions/Connections .............................................................................................. 7  
II. Installation and Operating Instructions .............................................................................. 8  
A. Checks Before Installation............................................................................................. 8  
B. How to Remove Panels................................................................................................. 8  
C. Location ........................................................................................................................ 9  
D. Setup............................................................................................................................. 9  
E. Installation of Second Unit ...........................................................................................11  
F. Electrical Connection................................................................................................... 13  
G. Water Supply and Drain Connections......................................................................... 14  
1. Icemaker ................................................................................................................ 14  
2. Water-Cooled Condenser....................................................................................... 15  
a) Connection to an Open Drain System ................................................................ 15  
b) Connection to a Closed Loop System ................................................................ 16  
H. Final Checklist............................................................................................................. 17  
I. Startup.......................................................................................................................... 18  
III. Cleaning and Maintenance............................................................................................. 19  
A. Cleaning & Sanitizing Instructions............................................................................... 19  
1. Cleaning Procedure................................................................................................ 20  
2. Sanitizing Procedure - Following Cleaning Procedure........................................... 21  
B. Maintenance................................................................................................................ 22  
C. Preparing the Icemaker for Long Storage ................................................................... 22  
3
 
Important Safety Information  
Throughout this manual, notices appear to bring your attention to situations which could  
result in death, serious injury, or damage to the unit.  
WARNING  
Indicates a hazardous situation which could result in death or  
serious injury.  
CAUTION  
IMPORTANT  
Indicates a situation which could result in damage to the unit.  
Indicates important information about the use and care of the  
unit.  
WARNING  
This icemaker should be destined only to the use for which it has been  
expressly conceived. Any other use should be considered improper and  
therefore dangerous. The manufacturer cannot be held responsible for eventual  
damage caused by improper, incorrect, and unreasonable use.  
To reduce the risk of death, electric shock, serious injury, or fire, follow  
basic precautions including the following:  
• Electrical connection must be hard-wired and must meet international,  
national, state, and local electrical code requirements. Failure to meet these  
code requirements could result in death, electric shock, serious injury, re, or  
severe damage to equipment.  
• This unit requires an independent power supply. See the nameplate for proper  
voltage and breaker/fuse size. Failure to use a proper breaker or fuse can  
result in a tripped breaker, blown fuse, or damage to existing wiring. This  
could lead to heat generation or fire.  
THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit could  
result in death or serious injury.  
• This unit should be disassembled or repaired only by qualified service  
personnel to reduce the risk of electric shock, injury, or fire.  
• Do not make any alterations to the unit. Alterations could result in electric  
shock, injury, re, or damage to the unit.  
4
 
I. Specifications  
A. Nameplate Rating  
1. KM-1400SWH-M (water-cooled marine)  
HOSHIZAKI ICE MAKER  
MODEL NUMBER  
KM-1400SWH-M  
SERIAL NUMBER  
AC SUPPLY VOLTAGE  
COMPRESSOR  
208-230/60/1 (2 WIRE)  
208-230V 8.2RLA 56LRA  
120V 1.2FLA 60W  
PUMP  
FAN  
OTHER  
--- --- ---  
115-120V  
0.3A  
15 AMPS  
15 AMPS  
15 AMPS  
15 AMPS  
MAXIMUM FUSE SIZE  
MAX. HACR BREAKER(USA ONLY)  
MAX. CIRC. BREAKER (CANADA ONLY)  
MINIMUM CIRCUIT AMPACITY  
DESIGN PRESSURE  
REFRIGERANT  
HI-427PSI LO-230PSI  
404A 2 LB. 2.4 OZ.  
MOTOR-COMPRESSOR THERMALLY PROTECTED,  
NOT INTENDED FOR OUTDOOR USE!  
Hoshizaki America, Inc.  
Peachtree City, GA  
ICE MAKER  
WITHOUT  
STORAGE  
MEANS  
45FE  
COMPONENT  
See the nameplate for electrical and refrigeration specifications. 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.  
5
 
2. KM-1400SWH3-M (water-cooled marine)  
HOSHIZAKI ICE MAKER  
MODEL NUMBER  
KM-1400SWH3-M  
SERIAL NUMBER  
AC SUPPLY VOLTAGE  
COMPRESSOR  
208-230/60/3  
208-230V 5.7RLA 51LRA  
120V 1.2FLA 60W  
PUMP  
FAN  
OTHER  
--- --- ---  
115-120V  
0.3A  
15 AMPS  
15 AMPS  
15 AMPS  
15 AMPS  
MAXIMUM FUSE SIZE  
MAX. HACR BREAKER(USA ONLY)  
MAX. CIRC. BREAKER (CANADA ONLY)  
MINIMUM CIRCUIT AMPACITY  
DESIGN PRESSURE  
REFRIGERANT  
HI-427PSI LO-230PSI  
404A 2 LB. 2.4 OZ.  
MOTOR-COMPRESSOR THERMALLY PROTECTED,  
NOT INTENDED FOR OUTDOOR USE!  
Hoshizaki America, Inc.  
Peachtree City, GA  
ICE MAKER  
WITHOUT  
STORAGE  
MEANS  
45FE  
COMPONENT  
See the nameplate for electrical and refrigeration specifications. 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.  
6
 
B. Dimensions/Connections  
1. KM-1400SWH/3-M (water-cooled marine)  
Note: When used with a storage bin not recommended by Hoshizaki, the icemaker  
needs the space at the bottom opening as in the illustration.  
7
 
II. Installation and Operating Instructions  
WARNING  
1. This icemaker must be installed in accordance with applicable international,  
national, state, and local regulations.  
2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews  
are securely in place after installation. Make sure that none have fallen into  
the storage bin.  
A. Checks Before Installation  
• Visually inspect the exterior of the shipping container and immediately report any  
damage to the carrier. Upon opening the container, any concealed damage should also  
be immediately reported to the carrier.  
• Remove the shipping carton, tape, and packing material. If any are left in the icemaker,  
it will not work properly.  
• Remove the panels to prevent damage when installing the icemaker. See "II.B. How to  
Remove Panels."  
• Remove the package containing the accessories.  
• Remove the protective plastic film from the panels. If the icemaker is exposed to the sun  
or to heat, remove the film after the icemaker cools.  
• Check that the refrigerant lines do not rub or touch lines or other surfaces.  
• Check that the compressor is snug on all mounting pads.  
• See the nameplate on the rear panel, and check that your voltage supplied corresponds  
with the voltage specified on the nameplate.  
• This icemaker can be installed on a storage bin 48" wide or wider. For options, contact  
your local Hoshizaki distributor.  
B. How to Remove Panels  
See Fig. 1  
• Front Panel: Remove the 2 screws. Lift up  
and towards you.  
Top Panel  
Top  
Insulation  
Top Panel: Remove the 2 screws, and  
then lift off.  
Insulation  
Panel  
• Side Panel (R): Remove the screw. Slide  
forward slightly and lift off.  
• Insulation Panel: Remove the  
thumbscrew. Lift up slightly and pull  
towards you.  
Front Panel  
Top Insulation: Lift off.  
Side Panel (R)  
Fig. 1  
8
 
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 32°C). Operation  
of the icemaker, for extended periods, outside of these normal temperature  
ranges may affect icemaker performance.  
2. 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 32°F (0°C). See "III.C. Preparing the Icemaker for Long Storage."  
For best operating results:  
• The icemaker should not be located next to ovens, grills, or other high heat producing  
equipment.  
• The location should provide a firm and level foundation for the equipment.  
• 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.  
D. Setup  
CAUTION  
Before operating the icemaker, the bin control thermostat assembly must be  
installed correctly. Failure to properly install the assembly could result in ice  
backup and unit damage.  
1) Follow the storage bin setup procedure.  
2) 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 2 mounting brackets and the bolts  
provided. See Fig. 2.  
Bolts  
Icemaker  
Fig. 2  
Bin  
Mounting  
Brackets  
9
 
5) Install the bin control thermostat as follows:  
a. Remove the baffle from the bin.  
b. Remove the tie securing the bin control thermostat assembly. Remove the  
2 thumbscrews.  
c. Remove the bin control thermostat assembly from the shipping hook by lifting it up  
and shifting it to the right. Lower the thermostat extension bracket (stainless) with  
the thermostat bulb attachment and thermostat bulb through the hole located at the  
bottom of the icemaker. Next, lower the thermostat bracket (plastic) through the hole.  
Bin Control Thermostat Assembly  
Wall  
Shipping Hook  
Plug  
Thermostat Bracket  
(plastic)  
Receptacle  
Hook  
Bushing  
Thermostat Extension  
Bracket (stainless)  
Tie  
Thermostat Bulb  
Attachment (plastic)  
and Thermostat Bulb  
Thumbscrews  
Thumbscrews  
Hole  
Fig. 3  
d. Make sure the left side and bottom of the assembly are flush against the wall and  
base panel.  
e. Secure the assembly into place with the thumbscrews (unless you are installing a  
second unit). (See "II.E. Installation of Second Unit.")  
f. Insert the plug into the receptacle on the assembly until it locks into place.  
g. Remove the 2 screws from the lower part of the thermostat bracket (plastic) and use  
them to attach the thermostat extension bracket (stainless) to the thermostat bracket  
(plastic).  
Thermostat Bracket  
(plastic)  
Fig. 4  
Thermostat Extension  
Bracket (stainless)  
6) 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.  
7) Make sure the icemaker and storage bin are properly secured.  
8) Seal as required by sanitation code.  
9) Replace the panels and baffle in their correct positions unless you are installing a  
second unit. If installing a second unit, see "II.E. Installation of Second Unit."  
10  
 
E. Installation of Second Unit  
1) See "II.D. Setup" for the lower unit installation.  
2) Remove the top panel and the top insulation of the lower unit. The top panel and the top  
insulation of the lower unit are not required when installing the second icemaker.  
3) Unpack the second icemaker (upper unit), and remove the shipping carton, tape, and  
packing material.  
4) Remove the panels of the second icemaker.  
5) Stack the upper unit on top of the lower unit.  
6) Secure the upper unit to the lower unit using the 2 mounting brackets and the bolts  
provided.  
Bolts  
Icemaker  
(Upper  
Unit)  
Icemaker  
(Lower  
Unit)  
Mounting  
Brackets  
Bin  
Fig. 5  
11  
 
7) Remove the tie securing the upper unit's bin control thermostat assembly.  
8) Remove the bin control thermostat assembly from the shipping hook by lifting it up and  
shifting it to the right.  
9) Remove the thermostat bulb attachment (plastic) of the upper unit from the thermostat  
extension bracket (stainless).  
10) Carefully remove the thermostat bulb from the thermostat bulb attachment (plastic) of  
the upper unit.  
11) Carefully route the thermostat bulb and capillary tubing of the upper unit through the  
bottom hole of the upper unit. Remove the bushing from the lower bin control thermostat  
assembly. Route the bulb and tubing through the hole in the assembly and down into  
the bin. Reattach the bushing.  
12) Secure the lower bin control thermostat assembly in place with the thumbscrews.  
13) Carefully insert the thermostat bulb back into the thermostat bulb attachment (plastic).  
14) Secure the thermostat bulb attachment (plastic) of the upper unit to the thermostat bulb  
attachment (plastic) of the lower unit with the screws of the upper unit.  
15) Insert the plug of the upper unit into the receptacle of the upper unit's bin control  
thermostat assembly until it locks into place.  
16) Replace the panels and baffle in their correct positions.  
Thermostat Extension  
Bracket (stainless)  
Thermostat Bulb  
Attachment Removed  
from Upper Unit  
Thermostat  
Capillary  
Tubing  
Thermostat Bulb  
Attachment of  
Lower Unit  
Thermostat Bulb  
Fig. 6  
Fig. 7  
12  
 
F. Electrical Connection  
WARNING  
1. Electrical connection must be hard-wired and must meet international,  
national, state, and local electrical code requirements. Failure to meet these  
code requirements could result in death, electric shock, serious injury, re, or  
severe damage to equipment.  
2. This unit requires an independent power supply. See the nameplate for proper  
voltage and breaker/fuse size. Failure to use a proper breaker or fuse can  
result in a tripped breaker, blown fuses, or damage to existing wiring. This  
could lead to heat generation or fire.  
3. THIS UNIT MUST BE GROUNDED. Failure to properly ground this unit could  
result in death or serious injury.  
4. Electrical connection must be made in accordance with the instructions on  
the "WARNING" tag, provided with the pig tail leads in the junction box. See  
Fig. 8a and 8b.  
• Usually an electrical permit and services of a licensed electrician are required.  
• The maximum allowable voltage variation is 10 percent of the nameplate rating.  
• The transformer's voltage tap switch must be positioned to match incoming voltage at  
startup.  
CAUTION! On three phase models, connect the highest incoming voltage supply  
("stinger leg") to the red power supply wire (red common wire to the compressor).  
• The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.  
KM-1400SWH-M  
KM-1400SWH3-M  
WARNING  
WARNING  
ELECTRICAL CONNECTION  
ELECTRICAL CONNECTION  
THISꢀUNITꢀMUSTꢀBEꢀGROUNDED  
Failure to properly ground or wire  
this unit could result in death,  
serious injury, or severe damage to  
the icemaker.  
THISꢀUNITꢀMUSTꢀBEꢀGROUNDED  
Failure to properly ground or wire  
this unit could result in death,  
serious injury, or severe damage to  
the icemaker.  
The transformer’s voltage tap switch  
must be positioned to match incoming  
voltage at startup.  
This unit must be connected to a  
three-phase power source.  
The transformer’s voltage tap switch  
must be positioned to match incoming  
voltage at startup.  
See diagram below.  
208-230/60/1  
See diagram below.  
JUNCTIONꢀBOX  
JUNCTIONꢀBOX  
208-230/60/3  
L1  
L1  
BROWN  
BROWN  
L2  
RED  
L2  
L3  
BLACK  
BLACK  
Fig. 8a  
Fig. 8b  
13  
 
G. Water Supply and Drain Connections  
See Fig. 9 or 10  
WARNING  
1. Water supply and drain connections must be installed in accordance with  
applicable international, national, state, and local regulations.  
2. 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 this  
normal temperature range may affect icemaker performance.  
3. 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.  
• A plumbing permit and services of a licensed plumber may be required in some areas.  
• External filters, strainers, or softeners may be required depending on water quality. Contact  
your local Hoshizaki distributor for recommendations.  
• 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 icemaker and condensation drain line(s), storage bin drain line, and water-cooled  
condenser drain line must be run separately.  
• Drain lines must have 1/4" fall per foot (2 cm per 1 m) on horizontal runs to get a good  
flow. A vented tee connection is also required for proper flow.  
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of  
2 vertical inches (5 cm) should be between the end of the drain pipes from the icemaker  
and condensation drain, storage bin, and water-cooled condenser and the floor drain.  
1. Icemaker  
• Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of 1/2" nominal  
copper water tubing is recommended for the icemaker water supply line.  
• An icemaker water supply line shut-off valve and drain valve should be installed.  
• Icemaker drain outlet is 3/4" FPT. A minimum of 3/4" nominal hard pipe is recommended  
for the icemaker drain line. Condensation drain outlet is 3/8" OD hard tube. The  
condensation drain line can be connected to the icemaker drain line or can be run  
separately.  
14  
 
2. Water-Cooled Condenser  
a) Connection to an Open Drain System  
• Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" nominal  
copper water tubing is recommended for the condenser water supply line.  
• A condenser water supply line shut-off valve and drain valve should be installed.  
• Condenser drain outlet is 3/8" FPT. A minimum of 3/8" nominal hard pipe is recommended  
for the condenser drain line.  
• In some areas, a back flow preventer may be required in the cooling water circuit.  
• In order to maintain the proper high side pressure, the condenser water supply inlet  
temperature should not drop below 45°F (7°C) and the condenser drain outlet temperature  
must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker installation  
is complete, confirm the condenser drain outlet temperature 5 minutes after a freeze  
cycle starts. If the condenser drain outlet temperature is not in the proper range, use a  
flat blade screwdriver to rotate the adjustment screw on the water-regulating valve until  
the temperature is in the proper range (rotate counterclockwise to raise temperature or  
clockwise to lower temperature).  
Minimum 3/8" Nominal Copper Water Tubing  
Minimum 1/2" Nominal Copper Water Tubing  
Icemaker Water Supply Line  
Icemaker  
Shut-Off Valve  
Water Supply  
Icemaker  
Inlet  
1/2" FPT  
Icemaker Water Supply Line  
Drain Valve  
Condenser Water  
Supply Inlet  
1/2" FPT  
Vent Tube  
Condenser Water Supply Line  
Shut-Off Valve  
Condenser Water Supply Line  
Drain Valve  
Condenser  
Drain Outlet  
3/8" FPT  
Minimum  
Separate piping to approved drain.  
Leave a 2-inch (5-cm) vertical air  
gap between the end of each pipe  
and the drain.  
3/4" Nominal  
Hard Pipe  
Bin  
Icemaker  
Drain Outlet  
3/4" FPT  
Vent Tube  
Condensation  
Drain Outlet  
3/8" OD Hard Tube  
2-inch (5-cm) air gap  
Bin Drain Outlet  
See Manufacturer's Instructions  
Minimum 3/8" Nominal  
Hard Pipe  
Floor  
Drain  
KM-1400SWH/3-M  
Fig. 9  
Connection to an Open Drain System  
15  
 
b) Connection to a Closed Loop System  
• Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" nominal  
copper water tubing is recommended for the condenser water supply line.  
• Condenser return outlet is 3/8" FPT. A minimum of 3/8" nominal copper water tubing is  
recommended for the condenser return line.  
• Shut-off valves and drain valves should be installed at both the condenser water supply  
inlet and condenser return outlet.  
• The water supply to the condenser should not drop below 4 GPM.  
• The pressure differential between the condenser water supply inlet and condenser return  
outlet must be no less than 10 PSIG.  
• When using a glycol blend, the solution mixture should be less than 30% glycol.  
• In order to maintain the proper high side pressure, the condenser water supply inlet  
temperature should not drop below 45°F (7°C) and the condenser return outlet  
temperature must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker  
installation is complete, confirm the condenser return outlet temperature 5 minutes after a  
freeze cycle starts. If the condenser return outlet temperature is not in the proper range,  
use a flat blade screwdriver to rotate the adjustment screw on the water-regulating valve  
until the temperature is in the proper range (rotate counterclockwise to raise temperature  
or clockwise to lower temperature).  
Minimum 3/8" Nominal Copper Water Tubing  
Minimum 1/2" Nominal Copper Water Tubing  
Icemaker Water Supply Line  
Icemaker  
Shut-Off Valve  
Water Supply  
Icemaker  
Inlet  
1/2" FPT  
Icemaker Water Supply Line  
Drain Valve  
Condenser Water Supply Line  
Shut-Off Valve  
Condenser Water  
Supply Inlet  
1/2" FPT  
Vent Tube  
Condenser Water Supply Line Drain Valve  
Condenser Return Line  
Shut-Off Valve  
Condenser  
Return Outlet  
3/8" FPT  
Condenser Return Line Drain Valve  
Separate piping to approved drain.  
Leave a 2-inch (5-cm) vertical air  
gap between the end of each pipe  
and the drain.  
Bin  
Icemaker  
Drain Outlet  
3/4" FPT  
Minimum  
3/4" Nominal  
Hard Pipe  
Condensation  
Drain Outlet  
3/8" OD Hard Tube  
2-inch (5-cm) air gap  
Vent Tube  
Bin Drain Outlet  
See Manufacturer's Instructions  
Floor  
Drain  
KM-1400SWH/3-M  
Fig. 10  
Connection to a Closed Loop System  
16  
 
H. Final Checklist  
WARNING  
CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews  
are securely in place after installation. Make sure that none have fallen into the  
storage bin.  
1) Is the icemaker level?  
2) 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 32°C) all year around?  
3) Is there at least 6" (15 cm) clearance at sides, rear, and top of the icemaker for proper  
air circulation and ease of maintenance and service?  
4) Have the shipping carton, tape, and packing material been removed from the icemaker?  
Are the cube guides in their correct positions? Are the separators between the  
evaporator banks properly attached to their holding clips?  
5) Are all components, fasteners, and thumbscrews securely in place?  
6) Have all electrical and water connections been made? Do electrical and water  
connections meet all international, national, state, and local code and regulation  
requirements?  
7) Has the power supply voltage been checked or tested against the nameplate rating?  
Has a proper ground been installed to the icemaker? Has the transformer's voltage tap  
switch been positioned to match incoming voltage?  
8) Are the water supply line shut-off valves and drain valves 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 end user been given the instruction manual, and instructed on how to operate  
the icemaker and the importance of the recommended periodic maintenance?  
11) Has the end user been given the name and telephone number of an authorized service  
agent?  
12) Has the warranty card been filled out and forwarded to the factory for warranty  
registration?  
17  
 
I. Startup  
WARNING  
1. All parts are factory-adjusted. Improper adjustments may adversely affect  
safety, performance, component life, and warranty coverage.  
2. 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.  
4. At startup, confirm that all internal and external connections are free of leaks.  
1) Open the water supply line shut-off valves.  
2) 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, then remove the front panel.  
7) Remove the insulation panel. Remove the drain plug located on the lower front part of  
the ice chute. Allow the water tank to drain. See Fig. 11.  
8) Replace the drain plug, insulation panel, and front panel in their correct positions. Be  
careful not to cross thread the drain plug.  
9) Clean the storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning.  
10) Turn on the power supply to start the automatic icemaking process.  
11) When the icemaker is running, hold an ice cube in contact with the bulb. The icemaker  
should stop within 10 seconds. Adjustment may be needed in some conditions.  
12) Confirm proper condenser drain outlet/return outlet temperature as outlined in "II.G.2.  
Water-Cooled Condenser."  
Drain Plug  
Fig. 11  
Cleaning  
Valve  
Ice Chute  
Float Switch Assembly  
18  
 
III. Cleaning and Maintenance  
This icemaker must be cleaned and maintained in accordance with the instruction  
manual and labels provided with the icemaker. Consult with your local distributor  
about cleaning and maintenance service. To obtain the name and phone number of  
1-800-233-1940 in the USA.  
WARNING  
1. Only qualified service technicians should attempt to service this icemaker.  
2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews  
are securely in place after any cleaning or maintenance is done to the unit.  
Make sure that none have fallen into the storage bin.  
3. The storage bin is for ice use only. Do not store anything else in the storage  
bin.  
A. Cleaning & Sanitizing Instructions  
Hoshizaki recommends cleaning and sanitizing this unit at least once a year. More  
frequent cleaning and sanitizing, however, may be required in some existing water  
conditions.  
WARNING  
1. To prevent injury to individuals and damage to the icemaker, do not use  
ammonia type cleaners.  
2. Carefully follow any instructions provided with the bottles of cleaning and  
sanitizing solution.  
3. Always wear liquid-proof gloves and goggles to prevent the cleaning and  
sanitizing solutions from coming into contact with skin or eyes.  
4. To prevent damage to the water pump seal, do not operate the icemaker with  
the control switch in the "WASH" position when the water tank is empty.  
IMPORTANT  
1. The cleaning valve is opened during cleaning and sanitizing to allow solution  
flow to the inside of the evaporator. It should be closed for all icemaking  
operation. The compressor will not operate unless this valve is completely  
closed.  
2. To close the cleaning valve, the valve handle should be at a right angle to the  
valve body. To open the cleaning valve, the valve handle should be parallel to  
the valve body.  
OPEN  
CLOSED  
Cleaning and Sanitizing Operation  
Normal Icemaking Operation  
(allows solution flow to the inside of the evaporator)  
19  
 
1. Cleaning Procedure  
1) Dilute 27 fl. oz. (800 ml) of Hoshizaki "Scale Away" with 5 gal. (19 l) of warm water.  
2) 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, then remove the insulation panel by first removing the  
thumbscrew, lifting up the panel slightly and pulling it towards you.  
5) Remove the drain plug located on the lower front part of the ice chute. Allow the water  
tank to drain.  
6) Replace the drain plug in its correct position. Be careful not to cross thread it.  
7) In bad or severe water conditions, clean the float switch assembly as described below.  
Otherwise, continue to step 8.  
a. Disconnect the vent tube and the flush tube from the top of the float switch, then  
remove the float switch assembly. Remove the rubber boot from the bottom of the  
assembly.  
b. Remove the retainer rod from the bottom of the float switch housing, then remove  
the float. Be careful not to bend the retainer rod excessively when removing it.  
c. Wipe down the float switch assembly's housing, shaft, float, 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 float switch assembly and replace it and the rubber boot in their  
correct positions. Reconnect the vent tube and the flush tube.  
8) Pour the cleaning solution into the water tank.  
9) Fully open the cleaning valve on the left side wall of the machine compartment.  
10) Move the control switch on the control box to the "WASH" position.  
11) Replace the insulation panel and the front panel in their correct positions.  
12) Turn on the power supply to start the washing process.  
13) Turn off the power supply after 30 minutes.  
14) Remove the front panel and the insulation panel.  
15) Remove the drain plug. Allow the water tank to drain. Replace the drain plug and the  
insulation panel in their correct positions.  
16) Move the control switch to the "ICE" position.  
17) Close the cleaning valve.  
Note: The icemaker will not operate unless the cleaning valve is completely closed.  
18) Replace the front panel in its correct position.  
19) Turn on the power supply to fill the water tank with water.  
20) Turn off the power supply after 3 minutes.  
21) Remove the front panel and fully open the cleaning valve.  
20  
 
22) Move the control switch to the "WASH" position.  
23) Replace the front panel in its correct position.  
24) Turn on the power supply to rinse off the cleaning solution.  
25) Turn off the power supply after 5 minutes.  
26) Remove the front panel and the insulation panel.  
27) Remove the drain plug. Allow the water tank to drain. Replace the drain plug and the  
insulation panel in their correct positions.  
Note: Do not replace the insulation panel when you proceed to "2. Sanitizing  
Procedure."  
28) Repeat steps 16 through 27 three more times to rinse thoroughly.  
Note: If you do not sanitize the icemaker, go to step 9 in "2. Sanitizing Procedure."  
2. Sanitizing Procedure - Following Cleaning Procedure  
1) Dilute 2.5 fl. oz. (74 ml or 5 tbs) of a 5.25% sodium hypochlorite solution (chlorine  
bleach) with 5 gal. (19 l) of warm water.  
2) Pour the sanitizing solution into the water tank.  
3) Replace the insulation panel and the front panel in their correct positions.  
Note: Make sure the control switch is in the "WASH" position and the cleaning valve is  
open.  
4) Turn on the power supply to start the sanitizing process.  
5) Turn off the power supply after 15 minutes.  
6) Remove the front panel and the insulation panel.  
7) Remove the drain plug. Allow the water tank to drain. Replace the drain plug and the  
insulation panel in their correct positions.  
8) Repeat steps 16 through 27 in "1. Cleaning Procedure" two times to rinse thoroughly.  
9) Close the cleaning valve.  
10) Move the control switch to the "ICE" position.  
11) Replace the front panel in its correct position.  
12) Clean the storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning.  
13) Turn on the power supply to start the automatic icemaking process.  
21  
 
B. Maintenance  
This icemaker must be maintained individually, referring to the instruction manual and  
labels provided with the icemaker.  
WARNING  
1. Only qualified service technicians should attempt to service this icemaker.  
2. Disconnect power before servicing.  
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 buildup.  
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.  
C. Preparing the Icemaker for Long Storage  
CAUTION  
1. When storing the icemaker for an extended time or in sub-freezing  
temperatures, follow the instructions below to prevent damage.  
2. To prevent damage to the water pump seal, do not operate the icemaker with  
the control switch in the "WASH" position when the water tank is empty.  
When the icemaker is not used for two or three days under normal conditions, it is sufficient  
to move the control switch to the "OFF" position. When storing the icemaker for an extended  
time or in sub-freezing temperatures, follow the instructions below.  
1. Remove the water from the icemaker water supply line:  
1) Turn off the power supply, then remove the front panel.  
2) Move the control switch on the control box to the "OFF" position.  
3) Close the icemaker water supply line shut-off valve, then open the icemaker water  
supply line drain valve.  
4) Allow the line to drain by gravity.  
5) Attach a compressed air or carbon dioxide supply to the icemaker water supply line  
drain valve.  
6) Move the control switch to the "ICE" position.  
7) Replace the front panel in its correct position, then turn on the power supply.  
8) Blow the icemaker water supply line out using the compressed air or carbon dioxide  
supply.  
9) Close the icemaker water supply line drain valve.  
22  
 
2. Drain the water tank:  
1) Turn off the power supply, then remove the front panel. Move the control switch to the  
"OFF" position.  
2) Remove the insulation panel. Remove the drain plug located on the lower front part of  
the ice chute. Allow the water tank to drain. See Fig. 11.  
3) Replace the drain plug and the insulation panel in their correct positions. Be careful not  
to cross thread the drain plug.  
4) Remove all ice from the storage bin. Clean the storage bin using a neutral cleaner.  
Rinse thoroughly after cleaning.  
5) Replace the front panel in its correct position.  
3. Remove the water from the water-cooled condenser:  
1) Make sure the power supply is off, then remove the front panel, top panel, and right side  
panel.  
2) Close the condenser water supply line shut-off valve. If connected to a closed loop  
system, also close the condenser return line shut-off valve.  
3) Open the condenser water supply line drain valve. If connected to a closed loop system,  
also open the condenser return line drain valve.  
4) Attach a compressed air or carbon dioxide supply to the condenser water supply line  
drain valve.  
5) Open the water regulating valve by using a screwdriver to pry up on the spring retainer  
underneath the spring. While holding the valve open, blow out the condenser using the  
compressed air or carbon dioxide supply until water stops coming out.  
6) Close the drain valve(s).  
7) Replace the right side panel, top panel, and front panel in their correct positions.  
23  
 
HOSHIZAKI AMERICA, INC.  
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A7DH10A  
 

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