Hoshizaki Ice Maker F 450MAH C User Manual

Hoshizaki America, Inc.  
Hoshizaki  
Modular Flaker  
Models  
F-450MAH(-C)  
INSTRUCTION MANUAL  
“A Superior Degree  
of Reliability”  
Issued: 1-28-2001  
Revised: 5-20-2011  
 
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  
B. Dimensions/Connections .............................................................................................. 6  
II. Installation and Operating Instructions .............................................................................. 7  
A. Checks Before Installation............................................................................................. 7  
B. How to Remove Panels................................................................................................. 7  
C. Location ........................................................................................................................ 8  
D. Setup............................................................................................................................. 8  
E. Electrical Connection .................................................................................................... 9  
F. Water Supply and Drain Connections .......................................................................... 10  
G. Final Checklist ........................................................................................................... 12  
H. Startup ........................................................................................................................ 13  
III. Cleaning and Maintenance............................................................................................. 15  
A. Cleaning and Sanitizing Instructions........................................................................... 15  
B. Maintenance................................................................................................................ 19  
C. Preparing the Icemaker for Long Storage ................................................................... 20  
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 unit 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 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. F-450MAH(-C) (air-cooled)  
HOSHIZAKI ICE MAKER  
MODEL NUMBER  
F-450MAH  
SERIAL NUMBER  
AC SUPPLY VOLTAGE  
COMPRESSOR  
GEAR MOTOR  
FAN MOTOR  
OTHER  
115-120/60/1  
120V 7.5RLA 54.5 LRA  
115V 2.4FLA 1/4HP  
120V 0.85FLA 1/15HP  
120V 0.03A  
MAXIMUM FUSE SIZE  
MAX. HACR BREAKER (USA ONLY)  
MAX. CIRC. BREAKER (CANADA ONLY)  
MINIMUM CIRCUIT AMPACITY  
DESIGN PRESSURE  
REFRIGERANT  
20 AMPS  
20 AMPS  
20 AMPS  
20 AMPS  
HI-427PSI LO-230PSI  
404A 1 lb  
MOTOR-COMPRESSOR THERMALLY PROTECTED,  
NOT INTENDED FOR OUTDOOR USE!  
Hoshizaki America, Inc.  
Peachtree City, GA  
ICE MAKER WITHOUT  
STORAGE MEANS  
COMPONENT  
946Z  
186090  
Note: Only the "MODEL NUMBER" is replaced for F-450MAH-C.  
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
 
B. Dimensions/Connections  
1. F-450MAH(-C) (air-cooled)  
6
 
II. Installation and Operating Instructions  
WARNING  
1. This icemaker must be installed in accordance with all applicable 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 front panel 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, and that the  
fan blade turns freely.  
• 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.  
B. How to Remove Panels  
See Fig. 1  
• Front Panel: Remove the screw. Lift up and towards  
you.  
Top Panel  
Top Panel: Lift up at the front slightly, push rearward,  
and lift off.  
• Side Panels: Remove the screw. Slide forward slightly  
and lift off.  
Right Side Panel  
Left Side Panel  
Front Panel  
Fig. 1  
7
 
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 and sides for proper air circulation and ease of  
maintenance and/or service should they be required. Allow 24" (61 cm) clearance at  
top to allow for removal of the auger.  
D. Setup  
1) Unpack the storage bin, and attach the 4 adjustable legs  
provided (bin accessory) to the bottom of the storage bin.  
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.  
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.  
Bolts  
Icemaker  
6) Replace the panels in their correct positions.  
Mounting  
Brackets  
Bin  
Fig. 2  
8
 
E. Electrical Connection  
WARNING  
1. Electrical connection must be hard-wired and must meet 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 icemaker 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.  
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. 3.  
• 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 white lead must be connected to the neutral conductor of the power source.  
CAUTION! Miswiring may result in severe damage to the icemaker. See Fig. 3.  
• The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.  
WARNING  
ELECTRICAL CONNECTION  
THISꢀUNITꢀMUSTꢀBEꢀGROUNDED  
Failure to properly ground or wire  
this unit could result in death,  
serious injury, or severe damage  
to the icemaker. The white lead  
must be connected to the neutral  
conductor of the power source.  
See diagram below.  
115-120/60/1  
JUNCTIONꢀBOX  
L
BROWN  
N
WHITE  
Fig. 3  
9
 
F. Water Supply and Drain Connections  
See Fig. 4  
WARNING  
1. Water supply and drain connections must be installed in accordance with  
applicable 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.  
• Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" OD  
copper tubing is recommended for the icemaker water supply line.  
• An icemaker water supply line shut-off valve and drain valve should be installed.  
• Storage bin and icemaker drain outlets are 3/4" FPT. A minimum of 3/4" OD hard pipe is  
recommended for the storage bin and icemaker drain lines.  
• The storage bin drain line and icemaker 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 storage bin and the floor drain.  
10  
 
Icemaker Water  
Supply Inlet  
1/2" FPT  
Icemaker Water  
Supply Line  
Shut-Off Valve  
Icemaker  
Icemaker  
Drain Outlet  
3/4" FPT  
Icemaker Water  
Supply Line  
Drain Valve  
Bin  
Separate piping to approved drain.  
Leave a two-inch (5 cm) vertical air  
gap between the end of each pipe  
and the drain.  
Bin Drain Outlet  
3/4" FPT  
Two-inch  
(5 cm) air  
gap  
Fig. 4  
F-450MAH  
Floor  
Drain  
11  
 
G. 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 rear and sides and 24" (61 cm) at top for proper  
air circulation and ease of maintenance and service?  
4) Have the shipping carton, tape, and packing material been removed from the icemaker?  
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 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?  
8) Are the water supply line shut-off valve(s) and drain valve(s) 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? Has the fan blade been  
checked to make sure it turns freely?  
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?  
12  
 
H. 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. At startup, confirm that all internal and external connections are free of leaks.  
1) Open the water supply line shut-off valve.  
2) Remove the front panel. Move the control switch on the control box to the "ICE" position,  
then move the power switch to the "ON" position. Replace the front panel in its correct  
position, then turn on the power supply to start the automatic icemaking process.  
3) Once the icemaker starts to produce ice, allow it to run for another 30 minutes.  
4) Turn off the power supply, then remove the front panel.  
5) Move the control switch to the "DRAIN" position, then replace the front panel in its  
correct position. Turn on the power supply and allow the water system to drain for  
5 minutes.  
6) Confirm bin control operation:  
a) Turn off the power supply, then remove the front and top panels.  
b) Move the power switch to the "OFF"  
Bin Control Assembly  
position.  
c) Remove the strap connecting the spout  
Proximity  
to the chute assembly. See Fig. 5. Pull  
up the chute assembly slightly so that  
you can access the actuator located in  
the top of the chute.  
Switch  
Strap  
Actuator  
Spout  
d) Move the control switch to the "ICE"  
position, then move the power switch to  
the "ON" position.  
e) Turn on the power supply to start  
the automatic icemaking process.  
WARNING! Keep hands, hair, and  
loose clothing clear of the cutter  
and auger on top of the evaporator  
assembly. Allow the icemaker to  
run until the compressor starts  
(approximately 60 seconds).  
Strap  
f) Press and hold the actuator paddle  
located in the top of the chute. The  
icemaker should shut down within  
6 seconds.  
Chute  
Assembly  
Fig. 5  
13  
 
g) Move the power switch to the "OFF" position, then turn off the power supply.  
h) Replace the chute assembly and strap in their correct positions.  
i) Move the power switch to the "ON" position.  
j) Replace the top and front panels in their correct positions.  
7) Pour warm water into the storage bin and melt any remaining ice. Clean the storage bin  
liner using a neutral cleaner. Rinse thoroughly after cleaning. WARNING! CHOKING  
HAZARD: Ensure all components, fasteners, and thumbscrews are securely in  
place. Make sure that none have fallen into the storage bin.  
8) Turn on the power supply to start the automatic icemaking process.  
14  
 
III. Cleaning and Maintenance  
WARNING  
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.  
A. Cleaning and Sanitizing Instructions  
Hoshizaki recommends cleaning and sanitizing this unit at least twice 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. After cleaning and sanitizing, do not use ice made from the cleaning and  
sanitizing solutions. Be careful not to leave any solution on the parts or in the  
storage bin.  
1. Cleaning Solution  
IMPORTANT  
For safety and maximum effectiveness, use the solution immediately after  
dilution.  
Dilute 4.8 fl. oz. (142 ml) of Hoshizaki "Scale Away" with 0.8 gal. (3 l) of warm water. This  
is a minimum amount. Make more solution if necessary.  
Proximity Switch  
Packing  
Bin Control Assembly Mount  
Shaft  
Actuator  
Strap  
Spout  
Plate  
Chute Insulation  
Packing  
Extruding Head  
Ties  
Baffle  
Evaporator  
Assembly  
Chute  
Reservoir  
Packing  
Fig. 6  
15  
 
2. Cleaning Procedure  
1) Turn off the power supply, then remove the front panel. Make sure the power switch is  
in the "ON" position, then move the control switch to the "DRAIN" position. Replace the  
front panel in its correct position.  
2) Close the icemaker water supply line shut-off valve.  
3) Turn on the power supply and allow the water system to drain for 5 minutes.  
4) Turn off the power supply, then remove the front and top panels. Move the power switch  
to the "OFF" position.  
5) Remove all of the ice from the storage bin.  
6) Remove the strap connecting the spout to the chute assembly, then remove the spout.  
See Fig. 6.  
7) Pour the cleaning solution over the extruding head until the evaporator assembly and  
the reservoir are full and the solution starts to overflow into the drain pan.  
Note: If there is excess scale on the extruding head, fill the evaporator assembly and  
reservoir as described above, then use a clamp on the reservoir hose between  
the reservoir and evaporator assembly to block flow. Pour additional cleaning  
solution over the extruding head until the evaporator assembly is completely full.  
8) Replace the spout and strap in their correct positions.  
9) Allow the icemaker to sit for 10 minutes before operation. If you placed a clamp on the  
reservoir hose in step 7, remove it before operation.  
10) In bad or severe water conditions, clean the float switch assembly as described below.  
See Fig. 7. Otherwise, continue to step 11.  
a. Remove the float switch assembly from  
the reservoir cover.  
Float Switch Assembly  
b. Wipe down the float switch assembly with  
Reservoir Cover  
the cleaning solution.  
c. Rinse the float switch assembly  
thoroughly with clean water.  
Reservoir  
Fig. 7  
d. Replace the float switch assembly in its  
correct position.  
11) Move the control switch to the "ICE" position, then move the power switch to the "ON"  
position. Replace the panels in their correct positions. Turn on the power supply and  
make ice using the solution until the icemaker stops making ice.  
12) Turn off the power supply, then remove the front panel. Move the control switch to the  
"DRAIN" position, then replace the front panel in its correct position.  
13) Turn on the power supply and allow the water system to drain for 5 minutes.  
14) Turn off the power supply, then remove the front panel. Move the control switch to the  
"ICE" position, then replace the front panel in its correct position.  
15) Open the icemaker water supply line shut-off valve, then turn on the power supply to  
supply water to the reservoir.  
16  
 
16) After the gear motor starts, turn off the power supply. Remove the front panel, then move  
the control switch to the "DRAIN" position. Replace the front panel in its correct position.  
17) Turn on the power supply and allow the water system to drain for 5 minutes.  
Note: If you do not sanitize the unit, go to step 14 in "III.A.5. Sanitizing  
Procedure - Final."  
18) Turn off the power supply, then close the icemaker water supply line shut-off valve.  
3. Sanitizing Solution  
IMPORTANT  
For safety and maximum effectiveness, use the solution immediately after  
dilution.  
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.  
4. Sanitizing Procedure - Initial  
1) Make sure the power supply is off and the icemaker water supply line shut-off valve  
is closed. Remove the front and top panels, then move the power switch to the "OFF"  
position.  
2) Remove the strap connecting the spout to the chute assembly, then remove the spout.  
Remove the packing at the top of the cylinder and also remove the packing between the  
spout and the chute.  
3) Pour the sanitizing solution over the extruding head until the evaporator assembly and  
the reservoir are full and the solution starts to overflow into the drain pan.  
4) Remove the proximity switch from the chute assembly, then remove the chute assembly  
from the icemaker.  
5) Remove the packing at the bottom of the chute. Remove the 3 ties and the chute  
insulation.  
6) Remove the 2 baffles.  
7) Remove the plate from the top of the chute, then remove the bin control assembly by  
sliding it slightly towards the chute opening and lifting it off.  
8) Disassemble the bin control assembly by removing the 2 snap pins, shaft, and actuator.  
9) Soak the spout, packings, chute, baffles, plate, and bin control assembly in the  
sanitizing solution for 10 minutes then wipe them down.  
10) Rinse the parts thoroughly with clean water.  
CAUTION  
If the solution is left on these parts, they will rust.  
11) Replace all parts in their correct positions.  
IMPORTANT  
When installing the baffles, make sure that the bent surface (the one without  
the studs) faces the actuator so that the bent surface can guide the ice to the  
center of the actuator.  
17  
 
12) Move the control switch to the "ICE" position, then move the power switch to the "ON"  
position. Replace the panels in their correct positions, then turn on the power supply.  
Make ice using the solution until the icemaker stops making ice.  
13) Turn off the power supply, then remove the front panel. Move the control switch to the  
"DRAIN" position, then replace the front panel in its correct position.  
14) Turn on the power supply and allow the water system to drain for 5 minutes.  
15) Turn off the power supply.  
5. Sanitizing Procedure - Final  
1) Mix a new batch of the sanitizing solution.  
2) Make sure the power supply is off and the icemaker water supply line shut-off valve  
is closed. Remove the front and top panels, then move the power switch to the "OFF"  
position.  
3) Remove the strap connecting the spout to the chute assembly, then remove the spout.  
4) Pour the sanitizing solution over the extruding head until the evaporator assembly and  
the reservoir are full and the solution starts to overflow into the drain pan.  
5) Replace the spout and strap in their correct positions.  
6) Allow the icemaker to sit for 10 minutes before operation.  
7) Move the control switch to the "ICE" position, then move the power switch to the "ON"  
position. Replace the panels in their correct positions, then turn on the power supply.  
Make ice using the solution until the icemaker stops making ice.  
8) Turn off the power supply, then remove the front panel. Move the control switch to the  
"DRAIN" position, then replace the front panel in its correct position.  
9) Turn on the power supply and allow the water system to drain for 5 minutes.  
10) Turn off the power supply, then remove the front panel. Move the control switch to the  
"ICE" position, then replace the front panel in its correct position.  
11) Open the icemaker water supply line shut-off valve, then turn on the power supply to  
supply water to the reservoir.  
12) After the gear motor starts, turn off the power supply. Remove the front panel, then move  
the control switch to the "DRAIN" position. Replace the front panel in its correct position.  
13) Turn on the power supply and allow the water system to drain for 5 minutes.  
14) Turn off the power supply, then remove the front panel. Move the control switch to the  
"ICE" position, then replace the front panel in its correct position.  
15) Turn on the power supply to start the automatic icemaking process. Allow the icemaker  
to run for 30 minutes, then turn off the power supply.  
16) Pour warm water into the storage bin and melt any remaining ice. Clean the storage bin  
liner using a neutral cleaner. Rinse thoroughly after cleaning.  
17) Turn on the power supply to start the automatic icemaking process.  
18  
 
B. Maintenance  
This icemaker must be maintained individually, referring to the instruction manual and  
labels provided with the icemaker. The schedule below is a guideline. More frequent  
maintenance, however, may be required depending on water quality, the icemaker's  
environment, and local sanitation regulations.  
Consult with your local distributor about inspection and maintenance service. To obtain  
Hoshizaki Technical Support at 1-800-233-1940 in the USA.  
WARNING  
1. Only qualified service technicians should attempt to service or maintain this  
icemaker.  
2. Disconnect power before performing maintenance.  
Maintenance Schedule  
Frequency Area  
Task  
Every 2  
Weeks  
Air Filter(s)  
Inspect. Wash with warm water and neutral cleaner if dirty.  
Monthly  
External Water  
Filters  
Check for proper pressure and change if necessary.  
Icemaker and  
Storage Bin  
Exterior  
Wipe down with clean, soft cloth. Use a damp cloth containing a neutral  
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust  
colored spots) using a non-abrasive cleaner like Zud or Bon Ami.  
Underside of  
Icemaker and Top  
Kits; Bin Door and  
Snout  
Wipe down with clean cloth and warm water.  
Every 6  
Months  
Icemaker and  
Storage Bin  
Clean and sanitize per the cleaning and sanitizing instructions provided in  
this manual.  
Evaporator  
Wipe down with clean cloth and warm water. Slowly pour one cup of  
Condensate Drain sanitizing solution (prepare as outlined in the sanitizing instructions in  
Pan and Gear  
Motor Drain Pan  
this manual) into the evaporator condensate drain pan. Be careful not to  
overflow the pan. This solution will flow down to the gear motor drain pan  
and out the drain line to sanitize these areas. Repeat with a cup of clean  
water to rinse.  
Icemaker and  
Check to make sure they are clear.  
Storage Bin Drains  
Yearly  
Inlet Water Valve  
and Drain Valve  
Close the icemaker water supply line shut-off valve and drain the water  
system. Clean the inlet water valve screen and clean and inspect the drain  
valve.  
Water Hoses  
Condenser  
Icemaker  
Inspect the water hoses and clean/replace if necessary.  
Inspect. Clean if necessary by using a brush or vacuum cleaner.  
Inspect for oil spots, loose components, fasteners, and wires.  
Upper Bearing  
(extruding head)  
Check for wear using .02" round stock or pin gauge. Replace both upper  
bearing and lower bearing if wear exceeds factory recommendations. See  
the Service Manual for details.  
19  
 
Maintenance Schedule (continued)  
Task  
Frequency Area  
After  
3 Years,  
then Yearly Lower Bearing  
and O-Ring  
Upper Bearing  
(extruding head);  
Inspect. Replace both upper bearing and lower bearing if wear exceeds  
factory recommendations. Replace the mechanical seal if the seal's contact  
surfaces are worn, cracked, or scratched.  
(lower housing);  
Mechanical  
Seal; Evaporator  
Cylinder; Auger  
C. Preparing the Icemaker for Long Storage  
CAUTION  
When storing the icemaker for an extended time or in sub-freezing  
temperatures, follow the instructions below to prevent damage.  
When the icemaker is not used for two or three days under normal conditions, it is  
sufficient to only move the power switch to the "OFF" position. When storing the  
icemaker for 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 power switch 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, then move the power switch to the "ON"  
position. Replace the front panel in its correct position, then turn on the power supply.  
7) Blow the icemaker water line out using the compressed air or carbon dioxide supply.  
8) Close the icemaker water supply line drain valve.  
2. Drain the evaporator:  
1) Turn off the power supply, then remove the front panel.  
2) Move the control switch to the "DRAIN" position, then replace the front panel in its  
correct position.  
3) Turn on the power supply and allow the water system to drain for 5 minutes.  
4) Turn off the power supply, then remove the front panel. Move the power switch to the  
"OFF" position.  
5) Remove the evaporator drain line hose from the evaporator and attach a compressed  
air or carbon dioxide supply to the hose.  
20  
 
6) Turn on the power supply, then move the power switch to the "ON" position. Blow out  
the evaporator drain line using the compressed air or carbon dioxide supply until water  
stops coming out.  
7) Move the power switch to the "OFF" position, then turn off the power supply. Reconnect  
the evaporator drain line hose.  
8) Replace the front panel in its correct position.  
9) Remove all ice from the storage bin. Clean the storage bin liner using a neutral cleaner.  
Rinse thoroughly after cleaning.  
21  
 
HOSHIZAKI AMERICA, INC.  
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A2BE10E  
 

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