Hoshizaki America, Inc.
Hoshizaki
Low-Profile Modular Crescent Cuber
Model
KML-700MWH-M
INSTRUCTION MANUAL
“A Superior Degree
of Reliability”
™
Issued: 10-13-2009
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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
A. Nameplate Rating......................................................................................................... 5
B. Dimensions/Connections.............................................................................................. 6
A. Checks Before Installation............................................................................................ 7
C. Location........................................................................................................................ 8
E. Electrical Connection.................................................................................................... 9
F. Water Supply and Drain Connections......................................................................... 10
b) Connection to a Closed Loop System................................................................ 1ꢀ
G. Final Checklist............................................................................................................ 13
H. Startup........................................................................................................................ 14
3
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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, fire, 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, fire, or damage to the unit.
4
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I. Specifications
A. Nameplate Rating
1. KML-700MWH-M (water-cooled marine)
MODEL NUMBER
KML-700MWH-M
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
208-230/60/1 (2 WIRE)
208-230V 6.1RLA 54LRA
120V 0.5FLA
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 1 LB. 6.9 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
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II. Installation and Operating Instructions
WARNING
1. This icemaker must be installed in accordance with applicable international,
national, state, and local regulations.
ꢀ. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews
are securely in place after installation. Make sure that none have fallen into
the dispenser unit/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 dispenser unit or storage bin 30" wide or wider. For
options, contact your local Hoshizaki distributor.
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
Top Panel
rearward, and lift off.
Top Insulation Panel
• Side Panel (R): Remove the screw. Slide
forward slightly and lift off.
Front Insulation Panel
• Front Insulation Panel: Lift up slightly, and
pull towards you.
Side
Panel
(R)
• Top Insulation Panel: Lift off.
Front
Panel
Screw
Screw
Fig. 1
7
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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 3ꢀ°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 3ꢀ°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
1) Follow the dispenser unit/storage bin setup procedure.
ꢀ) Position the dispenser unit/storage bin in the selected permanent location.
3) Place the icemaker on top of the dispenser unit/storage bin.
4) Secure the icemaker to the dispenser unit/storage bin using the ꢀ mounting brackets
and the bolts provided. See Fig. ꢀ.
5) Level the icemaker and dispenser unit/storage bin in
both the left-to-right and front-to-rear directions. If using
a storage bin, adjust the storage bin legs to make the
icemaker level.
Icemaker
6) Make sure the icemaker and dispenser unit/storage bin
Bolts
are properly secured.
7) Seal as required by sanitation code.
8) Replace the panels in their correct positions.
Fig. 2
Bin
Mounting
Brackets
8
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E. 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, fire, 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.
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 transformer's voltage tap switch must be positioned to match incoming voltage at
startup.
• The opening for the power supply connection is 7/8" DIA to fit a 1/ꢀ" trade size conduit.
KML-700MWH-M
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Fig. 3
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9
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F. Water Supply and Drain Connections
See Fig. 4 or 5
WARNING
1. Water supply and drain connections must be installed in accordance with
applicable international, national, state, and local regulations.
ꢀ. Normal operating water temperature should be within 45°F to 90°F (7°C
to 3ꢀ°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 drain line, dispenser unit/storage bin drain line, and water-cooled condenser
drain line must be run separately.
• Drain lines must have 1/4" fall per foot (ꢀ cm per 1 m) on horizontal runs to get a good
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
ꢀ vertical inches (5 cm) should be between the end of the drain pipes from the icemaker,
dispenser unit/storage bin, and water-cooled condenser and the floor drain.
1. Icemaker
• Icemaker water supply inlet is 1/ꢀ" 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.
• Icemaker drain outlet is 3/4" FPT. A minimum of 3/4" OD hard pipe is recommended for
the icemaker drain line.
10
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2. Water-Cooled Condenser
a) Connection to an Open Drain System
• Condenser water supply inlet is 1/ꢀ" female pipe thread (FPT). A minimum of 3/8" OD
copper 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" OD hard pipe is recommended for
the condenser drain line.
• In some areas, a back flow preventer may be required in the cooling water circuit.
Icemaker Water Supply Line
Icemaker
Shut-Off Valve
Water Supply
Inlet
Icemaker
Condenser Water Supply Line
Shut-Off Valve
1/ꢀ" FPT
Condenser
Drain Outlet
3/8" FPT
Icemaker Water Supply Line
Drain Valve
Condenser Water
Supply Inlet
1/ꢀ" FPT
Condenser Water Supply Line
Drain Valve
Bin Drain Outlet
3/4" FPT
Separate piping to approved drain.
Leave a ꢀ-inch (5-cm) vertical air
gap between the end of each pipe
and the drain.
Bin
Icemaker
Drain Outlet
3/4" FPT
ꢀ-inch (5-cm) air gap
Floor
Drain
KML-700MWH-M
Fig. 4
Connection to an Open Drain System
11
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b) Connection to a Closed Loop System
• Condenser water supply inlet is 1/ꢀ" female pipe thread (FPT). A minimum of 3/8" OD
copper tubing is recommended for the condenser water supply line.
• Condenser return outlet is 3/8" FPT. A minimum of 3/8" OD hard pipe 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 outlet temperature is not in the proper range, adjust the
water-regulating valve to bring it into range.
Icemaker Water Supply
Line Shut-Off Valve
Icemaker
Water Supply
Inlet
Icemaker
Condenser Water Supply Line
Shut-Off Valve
1/ꢀ" FPT
Condenser Return Line
Shut-Off Valve
Condenser
Return Outlet
3/8" FPT
Icemaker Water Supply Line
Drain Valve
Condenser Water Supply Line
Drain Valve
Condenser
Water Supply
Inlet
Bin
1/ꢀ" FPT
Separate piping to approved drain.
Leave a ꢀ-inch (5-cm) vertical air
gap between the end of each pipe
and the drain.
Icemaker
Drain Outlet
3/4" FPT
Bin Drain Outlet
3/4" FPT
ꢀ-inch (5-cm) air gap
Condenser Return Line
Drain Valve
Floor
Drain
KML-700MWH-M
Connection to a Closed Loop System
Fig. 5
1ꢀ
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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
dispenser unit/storage bin.
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 3ꢀ°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? Is the cube guide in the correct position?
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?
1ꢀ) Has the warranty card been filled out and forwarded to the factory for warranty
registration?
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H. Startup
WARNING
1. All parts are factory-adjusted. Improper adjustments may adversely affect
safety, performance, component life, and warranty coverage.
ꢀ. If the icemaker is turned off, wait for at least 3 minutes before restarting the
icemaker to prevent damage to the compressor.
3. To prevent damage to the water pump, do not leave the control switch in
the "SERVICE" position for extended periods of time when the water tank is
empty.
4. At startup, confirm that all internal and external connections are free of leaks.
1) Open the water supply line shut-off valves.
ꢀ) 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 5 minutes to fill up the
water tank.
6) Remove the front panel, then move the service switch to the "WASH" position. Move
the control switch to the "SERVICE" position.
7) Replace the front panel in its correct position and allow the icemaker to run for
5 minutes.
8) Remove the front panel, then move the service switch to the "DRAIN" position.
9) Replace the front panel in its correct position and allow the icemaker to drain for
ꢀ minutes.
10) Turn off the power supply.
11) Remove the front panel, then move the control switch to the "ICE" position.
1ꢀ) Replace the front panel in its correct position.
13) Clean the dispenser unit/storage bin liner using a neutral cleaner. Rinse thoroughly
after cleaning.
14) Turn on the power supply to start the automatic icemaking process.
15) When the icemaker is running, hold ice in contact with the bin control thermostat bulb.
The icemaker should stop within 10 seconds. Adjustment may be needed in some
conditions.
14
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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 dispenser unit/storage bin.
A. Cleaning and 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.
ꢀ. 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, do not leave the control switch in
the "SERVICE" position for extended periods of time when the water tank is
empty.
1. Cleaning Procedure
1) Dilute 13.5 fl. oz. (400 ml) of recommended cleaner Hoshizaki "Scale Away" or
"LIME-A-WAY," (Economics Laboratory, Inc.) with ꢀ.5 gal. (9.5 l) of warm water.
ꢀ) Remove all ice from the evaporator and the dispenser unit/storage bin.
Note: To remove cubes on the evaporator, turn off the power supply and turn it 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 move the service switch to the "DRAIN" position. Move
the control switch to the "SERVICE" position.
5) Replace the front panel in its correct position, then turn on the power supply for
ꢀ minutes.
6) Turn off the power supply.
7) Remove the front panel, then remove the front insulation panel by lifting up the panel
slightly and pulling it towards you.
15
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8) In bad or severe water conditions, clean the float switch assembly as described below.
Otherwise, continue to step 9.
a. Remove the 3 screws securing the float switch assembly, then remove 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 housing, shaft, float, and retainer rod with cleaning
solution. Rinse the parts thoroughly with clean water.
d. Reassemble the float switch assembly and replace it in its correct position. Secure
the float switch assembly with the screws.
9) Pour the cleaning solution into the water tank.
10) Move the service switch to the "WASH" position.
11) Replace the front insulation panel and the front panel in their correct positions.
1ꢀ) Turn on the power supply to start the washing process.
13) Turn off the power supply after 30 minutes.
14) Remove the front panel.
15) Move the service switch to the "DRAIN" position.
16) Replace the front panel in its correct position, then turn on the power supply for
ꢀ minutes.
17) Turn off the power supply, then remove the front panel.
18) Move the control switch to the "ICE" position.
19) Replace the front panel in its correct position.
ꢀ0) Turn on the power supply to fill the water tank with water.
ꢀ1) Turn off the power supply after 3 minutes.
ꢀꢀ) Remove the front panel.
ꢀ3) Move the service switch to the "WASH" position, then move the control switch to the
"SERVICE" position.
ꢀ4) Replace the front panel in its correct position.
ꢀ5) Turn on the power supply to rinse off the cleaning solution.
ꢀ6) Turn off the power supply after 5 minutes.
ꢀ7) Remove the front panel.
ꢀ8) Move the service switch to the "DRAIN" position.
ꢀ9) Replace the front panel in its correct position, then turn on the power supply for
ꢀ minutes.
30) Turn off the power supply.
31) Remove the front panel.
3ꢀ) Repeat steps 18 through 31 three more times to rinse thoroughly.
Note: If you do not sanitize the icemaker, go to step 14 in "ꢀ. Sanitizing Procedure."
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2. Sanitizing Procedure - Following Cleaning Procedure
1) Dilute 1.ꢀ5 fl. oz. (37 ml or ꢀ.5 tbs) of a 5.ꢀ5% sodium hypochlorite solution (chlorine
bleach) with ꢀ.5 gal. (9.5 l) of warm water.
ꢀ) Remove the front insulation panel.
3) Pour the sanitizing solution into the water tank.
4) Move the service switch to the "WASH" position.
5) Replace the front insulation panel and the front panel in their correct positions.
6) Turn on the power supply to start the sanitizing process.
7) Turn off the power supply after 15 minutes.
8) Remove the front panel.
9) Move the service switch to the "DRAIN" position.
10) Replace the front panel in its correct position, then turn on the power supply for
ꢀ minutes.
11) Turn off the power supply.
1ꢀ) Remove the front panel.
13) Repeat steps 18 through 31 in "1. Cleaning Procedure" two times to rinse thoroughly.
14) Move the control switch to the "ICE" position.
15) Replace the front panel in its correct position.
16) Clean the dispenser unit/storage bin liner using a neutral cleaner. Rinse thoroughly
after cleaning.
17) Turn on the power supply to start the automatic icemaking process.
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 or maintain this
icemaker.
ꢀ. Disconnect power before performing service or maintenance.
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. Dispenser Unit/Storage Bin and Scoop
• Wash your hands before removing ice. Use the plastic scoop provided (bin accessory).
• The dispenser unit/storage bin is for ice use only. Do not store anything else in the
dispenser unit/storage bin.
• Clean the scoop and the dispenser unit/storage bin liner using a neutral cleaner. Rinse
thoroughly after cleaning.
17
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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.
ꢀ. To prevent damage to the water pump, do not leave the control switch in
the "SERVICE" position for extended periods of time 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.
ꢀ) 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 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 compressed air or carbon dioxide.
2. Drain the water tank:
1) Turn off the power supply, then remove the front panel.
ꢀ) Move the service switch to the "DRAIN" position, then move the control switch to the
"SERVICE" position.
3) Replace the front panel in its correct position, then turn on the power supply for
ꢀ minutes.
4) Turn off the power supply, then remove the front panel.
5) Move the control switch to the "OFF" position.
6) Replace the front panel in its correct position.
7) Remove all ice from the dispenser unit/storage bin. Clean the dispenser unit/storage bin
using a neutral cleaner. Rinse thoroughly after cleaning.
8) Close the icemaker water supply line drain valve.
3. Remove the water from the water-cooled condenser:
1) Make sure the power supply is off, then remove the front panel and right side panel.
ꢀ) 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.
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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 and front panel in their correct positions.
19
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HOSHIZAKI AMERICA, INC.
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A1HL10A
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