Hoshizaki America, Inc.
Hoshizaki
Stackable Crescent Cuber
Models
KM-1900SAH/3
KM-1900SWH/3
KM-1900SRH/3
INSTRUCTION MANUAL
“A Superior Degree
of Reliability”
™
Issued: 1-6-2009
Revised: 11-8-2010
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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
Important Safety Information ................................................................................................. 4
I. Specifications...................................................................................................................... 5
A. Nameplate Rating ......................................................................................................... 5
1. KM-1900SAH (air-cooled) ........................................................................................ 5
2. KM-1900SAH3 (air-cooled)...................................................................................... 6
3. KM-1900SWH (water-cooled).................................................................................. 7
4. KM-1900SWH3 (water-cooled)................................................................................ 8
5. KM-1900SRH (remote air-cooled)............................................................................ 9
6. KM-1900SRH3 (remote air-cooled)........................................................................ 10
B. Dimensions/Connections .............................................................................................11
1. KM-1900SAH/3 .......................................................................................................11
2. KM-1900SWH/3..................................................................................................... 12
3. KM-1900SRH/3...................................................................................................... 13
II. Installation and Operating Instructions ............................................................................ 14
A. Checks Before Installation........................................................................................... 14
B. How to Remove Panels............................................................................................... 14
C. Location ...................................................................................................................... 15
D. Setup........................................................................................................................... 15
E. Installation of Upper Unit............................................................................................. 17
F. Electrical Connection................................................................................................... 19
G. Installation of Remote Condenser Unit ....................................................................... 21
1. Checks Before Installation...................................................................................... 21
2. Location................................................................................................................. 21
3. Setup ..................................................................................................................... 22
4. Line Set ................................................................................................................. 22
5. Refrigerant Charge (Line Set Exceeding 66 Feet)................................................. 25
6. Electrical Connection............................................................................................. 25
7. Stacking Condenser Unit........................................................................................ 26
H. Water Supply and Drain Connections ......................................................................... 27
1. Icemaker ................................................................................................................ 28
2. Water-Cooled Condenser....................................................................................... 29
I. Final Checklist ............................................................................................................. 31
J. Startup......................................................................................................................... 32
III. Cleaning and Maintenance............................................................................................. 33
A. Cleaning and Sanitizing Instructions .......................................................................... 33
1. Cleaning Procedure................................................................................................ 34
2. Sanitizing Procedure - Following Cleaning Procedure........................................... 35
B. Maintenance Instructions ............................................................................................ 36
C. Preparing the Icemaker for Long Storage ................................................................... 36
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 injury or
damage resulting from 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, 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. KM-1900SAH (air-cooled)
MODEL NUMBER
KM-1900SAH
SERIAL NUMBER
AC SUPPLY VOLTAGE
208-230/60/1 (3 WIRE WITH
NEUTRAL FOR 115V)
230V 11.3RLA 73LRA
120V 1.2FLA 60W
115V 2FLA(TOTAL) 60W
115V 0.3A
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER(USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT
30 AMPS
30 AMPS
30 AMPS
30 AMPS
HI-467PSI LO-230PSI
404A 4 LB. 10.1 OZ.
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
ICE MAKER WITHOUT
STORAGE MEANS
COMPONENT
946Z
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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2. KM-1900SAH3 (air-cooled)
MODEL NUMBER
KM-1900SAH3
SERIAL NUMBER
AC SUPPLY VOLTAGE
208-230/60/3
COMPRESSOR
PUMP
FAN
OTHER
230V 8.4RLA 66LRA
120V 1.2FLA 60W
115V 2FLA(TOTAL) 60W
115V 0.3A
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-467PSI LO-230PSI
404A 4 LB. 10.1 OZ.
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
ICE MAKER WITHOUT
STORAGE MEANS
COMPONENT
946Z
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
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3. KM-1900SWH (water-cooled)
MODEL NUMBER
KM-1900SWH
SERIAL NUMBER
AC SUPPLY VOLTAGE
208-230/60/1 (3 WIRE WITH
NEUTRAL FOR 115V)
230V 11.1RLA 73LRA
120V 1.2FLA 60W
- - -
COMPRESSOR
PUMP
FAN
OTHER
115V 0.3A
MAXIMUM FUSE SIZE
MAX. HACR BREAKER(USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT
30 AMPS
30 AMPS
30 AMPS
30 AMPS
HI-427PSI LO-230PSI
404A 3 LB. 1.4 OZ.
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
ICE MAKER WITHOUT
STORAGE MEANS
COMPONENT
946Z
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.
7
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4. KM-1900SWH3 (water-cooled)
MODEL NUMBER
KM-1900SWH3
SERIAL NUMBER
AC SUPPLY VOLTAGE
208-230/60/3
COMPRESSOR
PUMP
FAN
230V 7.8RLA 66LRA
120V 1.2FLA 60W
- - -
OTHER
115V 0.3A
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 3 LB. 1.4 OZ.
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
ICE MAKER WITHOUT
STORAGE MEANS
COMPONENT
946Z
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.
8
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5. KM-1900SRH (remote air-cooled)
MODEL NUMBER
KM-1900SRH
SERIAL NUMBER
AC SUPPLY VOLTAGE
208-230/60/1 (3 WIRE WITH
NEUTRAL FOR 115V)
230V 11.4RLA 73LRA
120V 1.2FLA 60W
120V 3A MAX
115V 0.3A
COMPRESSOR
PUMP
FAN REMOTE
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER(USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT
30 AMPS
30 AMPS
30 AMPS
30 AMPS
HI-467PSI LO-230PSI
404A
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
ICE MAKER WITHOUT
STORAGE MEANS
COMPONENT
946Z
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.
9
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6. KM-1900SRH3 (remote air-cooled)
MODEL NUMBER
KM-1900SRH3
SERIAL NUMBER
AC SUPPLY VOLTAGE
208-230/60/3
COMPRESSOR
PUMP
FAN REMOTE
OTHER
230V 8.0RLA 66LRA
120V 1.2FLA 60W
120V 3A MAX
115V 0.3A
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-467PSI LO-230PSI
404A
MOTOR-COMPRESSOR THERMALLY PROTECTED,
NOT INTENDED FOR OUTDOOR USE!
Hoshizaki America, Inc.
Peachtree City, GA
ICE MAKER WITHOUT
STORAGE MEANS
COMPONENT
946Z
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.
10
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B. Dimensions/Connections
1. KM-1900SAH/3
Note: When used with a storage bin not recommended by Hoshizaki, the icemaker
needs the space at the bottom opening as in the illustration.
11
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2. KM-1900SWH/3
Note: When used with a storage bin not recommended by Hoshizaki, the icemaker
needs the space at the bottom opening as in the illustration.
12
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3. KM-1900SRH/3
Note: When used with a storage bin not recommended by Hoshizaki, the icemaker
needs the space at the bottom opening as in the illustration.
13
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II. Installation and Operating Instructions
WARNING
1. This icemaker must be installed in accordance with applicable national, state,
and local codes and 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, and that the
fan blade (if applicable) 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.
• This icemaker can be installed on a storage bin 48" wide or wider. The recommended
storage bin is Hoshizaki Ice Storage Bin, Model B-800 series. For further options,
contact your local Hoshizaki distributor.
• On remote air-cooled model, a remote condenser unit is needed. Hoshizaki Remote
Condenser Unit, Model URC-21F or URC-22F is recommended.
B. How to Remove Panels
See Fig. 1
Top Panel
Top
Insulation
• Front Panel: Remove the screws. Lift up and
pull towards you.
Insulation
Panel
• Top Panel: Remove the screws, then lift off.
• Side Panel (R): Remove the screw. Slide
forward slightly and lift off.
Front Panel
• Insulation Panel: Remove the thumbscrew. Lift
up slightly and pull towards you.
Side Panel (R)
• Top Insulation: Lift off.
Fig. 1
14
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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 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:
• Icemaker should not be located next to ovens, grills, or other high heat producing
equipment.
• Location should provide a firm, 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) Unpack the storage bin, then 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.
Icemaker
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
5) Level the icemaker/storage bin in both the
left-to-right and front-to-rear directions.
Adjust the storage bin legs to make the
icemaker level.
Mounting
Brackets
Bin
Fig. 2
15
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6) Install the bin control thermostat as follows:
a. Remove the baffle from the storage bin.
b. Remove the tie securing the bin control thermostat assembly. Remove the
2 thumbscrews and the "Z" bracket.
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.
See Fig. 3.
Bin Control Thermostat Assembly
Wall
Shipping Hook
Thermostat Bracket
(plastic)
Plug
Hook
Bushing
Thermostat Extension
Bracket (stainless)
Tie
Thermostat Bulb
Attachment (plastic)
and Thermostat Bulb
Receptacle
Thumbscrews
"Z" Bracket
Thumbscrews
Hole
Fig. 3
d. Slide the left side of the upper part of the assembly towards you and make sure it
is hooked on the wall. Make sure the left side and bottom of the assembly are flush
against the wall and base panel.
e. Secure the assembly in place with the thumbscrews (unless you are installing an
upper unit). (See "II.E. Installation of Upper Unit.")
f. Insert the plug into the receptacle on the assembly until it locks into place. See Fig. 3.
If a Hoshizaki B-800, B-900, or B-1150 storage bin is used:
g. Put aside the "Z" bracket; it is not needed with the storage bins listed above.
h. 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). See Fig. 4.
Thermostat Bracket
(plastic)
Thermostat Extension
Bracket (stainless)
Fig. 4
16
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If a Hoshizaki B-1300, B-1500, B-1650, or non-Hoshizaki storage bin is used:
g. Remove the 2 screws securing the thermostat bulb attachment (plastic) to the
thermostat extension bracket (stainless). Use the 2 screws to attach the "Z" bracket
(plastic) to the thermostat extension bracket (stainless).
h. Use the two 4×10 stainless steel screws in the accessory bag to attach the
thermostat bulb attachment (with attached thermostat bulb) to the "Z" bracket.
i. 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). See Fig. 5.
Thermostat Bracket
(plastic)
Thermostat Bulb
Attachment (plastic)
Thermostat Extension
Bracket (stainless)
"Z" Bracket (plastic)
Fig. 5
7) Replace the panels and baffle in their correct positions (unless you are installing an
upper unit). (See "E. Installation of Upper Unit").
Note: The bin control thermostat must be checked for proper operation at startup.
Icemaker
(Upper Unit)
E. Installation of Upper Unit
1) See "II.D. Setup" for the lower unit installation.
2) Remove the top panel and the top
insulation of the lower unit. These pieces
must be removed when installing an upper
unit.
Mounting
Brackets
3) Unpack the upper unit, and remove
the shipping carton, tape, and packing
material.
4) Remove the panels of the upper unit.
Bolts
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. See Fig. 6.
Icemaker
(Lower Unit)
7) Remove the thermostat bulb attachment
(plastic) of the upper unit from the
Bin
thermostat extension bracket (stainless).
Fig. 6
17
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8) Carefully remove the thermostat bulb from the thermostat bulb attachment (plastic) of
the upper unit.
9) 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 storage bin. Reattach the bushing.
10) Secure the lower bin control thermostat assembly in place with the thumbscrews.
11) Carefully insert the thermostat bulb back into the thermostat bulb attachment (plastic).
12) 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. See Fig. 7.
13) Insert the plug of the upper unit into the receptacle of the upper unit's bin control
thermostat assembly until it locks into place.
14) Replace the panels and baffle in their correct positions.
Thermostat
Capillary
Tubing
Thermostat Extension Bracket
(stainless) or "Z" Bracket (plastic)
Depending on Bin
Thermostat Bulb Attachment
Removed from Upper Unit
Thermostat Bulb
Attachment of
Lower Unit
Thermostat Bulb
Fig. 7
18
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F. Electrical Connection
WARNING
For All Models
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, fire, 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 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. 8a and 8b.
Additional Warnings for Remote Air-Cooled Model
5. THE REMOTE CONDENSER UNIT MUST BE GROUNDED. The power
supply and ground wire to the remote condenser unit are supplied from the
icemaker. See "II.G.6. Electrical Connection."
6. To reduce the risk of electric shock, make all remote condenser unit
connections before connecting the icemaker power supply.
7. On remote air-cooled models, the icemaker should have power for a minimum
of 4 hours prior to startup to prevent compressor damage.
• Usually an electrical permit and services of a licensed electrician are required.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.
19
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• On single phase models, 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. 8a.
• On three phase models, the transformer’s voltage tap switch must be positioned to match
incoming voltage at startup. See Fig. 8b.
• 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-1900S_H
KM-1900S_H3
Fig. 8a
Fig. 8b
20
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G. Installation of Remote Condenser Unit
WARNING
1. Installation of the remote condenser unit must be performed by properly
trained and EPA-certified service personnel.
2. The remote condenser unit must be installed in accordance with applicable
national, state, and local codes and regulations.
3. Failure to install the equipment within these guidelines may adversely affect
safety, performance, component life, and warranty coverage.
4. Power supply and ground wire to the remote condenser unit are supplied
from the icemaker. For details, see section "II.G.6. Electrical Connection."
1. Checks Before Installation
1) Remove the shipping carton, tape, and packing material.
2) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blades move freely.
2. Location
CAUTION
The remote condenser unit is intended for outdoor use. Normal operating
ambient temperature should be within -20°F to +122°F (-29°C to +50°C).
Operation of the remote condenser unit, for extended periods, outside of this
normal temperature range may affect icemaker performance.
The remote condenser unit must be positioned in a permanent site under the following
guidelines:
Min. 24" (61 cm) Clearance
• A firm and flat site.
• A dry and well ventilated area with 24" (61
cm) clearance in both front and rear for
ease of maintenance and/or service should
they be required. See Fig. 9.
Air
Air
Fig. 9
• The maximum line length for the standard
refrigerant charge is 66 feet. With
additional refrigerant, the maximum line
length is 100 feet. For details, see "II.G.5.
Refrigerant Charge (Line Set Exceeding
66 Feet)."
Remote
Condenser
Unit
• The maximum vertical distance between
the remote condenser unit and the
Max. 33 Feet
Icemaker
icemaker is 33 feet above or 10 feet
below the icemaker. These distances are
measured fitting to fitting. See Fig. 10.
Service Loop
Fig. 10
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3. Setup
Bolts with Split
Lock Washer
and Flat Washer
1) Secure the legs to the remote
condenser unit with the 8 bolts and
nuts provided. See Fig. 11.
2) The legs have 8 mounting holes. Secure
the legs with 8 bolts (not included).
Nuts
Fig. 11
Mounting Holes
4. Line Set
CAUTION
The icemaker, line set, and remote condenser unit must contain the same
type of refrigerant. Mixing of refrigerants will result in improper operation and
possible damage to the refrigeration system.
• Precharged factory line sets, available as optional equipment from Hoshizaki America, are
recommended. For details, see "II.G.4.a) Factory Line Set Installation." Field fabricated
line sets are allowed. For details, see "II.G.4.b) Field Fabricated Line Set Installation."
• The maximum line length for the standard refrigerant charge is 66 feet. With additional
refrigerant, the maximum line length is 100 feet. For details, see "II.G.5. Refrigerant
Charge (Line Set Exceeding 66 Feet)."
a) Factory Line Set Installation
1) Route the factory line set (5/8" OD discharge line and 3/8" OD liquid line) from the
remote condenser unit to the icemaker. Leave a service loop behind the icemaker to
allow the icemaker to be pulled out for service. See Fig. 12. Factory fabricated line sets
are precharged and do not need to be evacuated. If the line set is too long or too short,
see "II.G.4.a)(1) Factory Line Set Modification."
Note: The service loop is not considered an oil trap.
CAUTION
1. Ensure that there are no traps and no kinks in the line set.
2. Do not coil extra line set.
2) Connect the refrigerant lines to the appropriate male fittings on the remote condenser
unit first and then at the icemaker. Make a proper connection as follows:
a. Remove the protective covers from the male fitting and female coupling.
b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire male
fitting, including O-ring, diaphragm, and threads before making the connection.
See Fig. 13.
CAUTION
Do not use thread sealant on the fittings. Use POE refrigerant oil or Parker
Super O Lube only.
c. Make sure the male fitting and female coupling are properly aligned, then start the
connection by hand to ensure that it is not cross threaded.
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d. Tighten the connection with a wrench until it is tight. At this point, the nut has
covered most of the threads on the male fitting.
e. Mark a reference line on the female coupling and the remote condenser unit or
icemaker panel. Using a backup wrench on the back of the female coupling, tighten
the six-sided nut of the female coupling an additional 1/6 turn. See Fig. 14.
3) If you lengthened the line set as outlined in "II.G.4.a)(1) Factory Line Set Modification"
and it exceeds 66 feet, see "II.G.5 Refrigerant Charge (Line Set Exceeding 66 Feet)" for
proper charging of the unit.
(1) Factory Line Set Modification
1) Recover the line set charge through the Schrader access ports on the Parker quick
connect couplings and store it in an approved container. Do not discharge the
refrigerant into the atmosphere. Remove the extra line set length or add extra tubing.
When adding extra tubing, insulate the additional copper tubes separately. Braze the
connections.
2) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace
of refrigerant to the lines through the Schrader access ports on the Parker quick
connect couplings (if using an electronic leak detector), and then raise the pressure
using nitrogen gas (140 PSIG). WARNING! DO NOT use R-404A as a mixture with
pressurized air for leak testing.
3) Evacuate through the Schrader access ports on the Parker quick connect couplings and
charge with R-404A refrigerant vapor to a pressure of 15 to 30 PSIG. Go to step 2 in
"II.G.4.a) Factory Line Set Installation."
b) Field Fabricated Line Set Installation
1) Route a 5/8" OD copper tube discharge line and a 3/8" OD copper tube liquid line
between the remote condenser unit and the icemaker. Leave a service loop behind the
icemaker to allow the icemaker to be pulled out for service. See Fig. 12.
Note: The service loop is not considered an oil trap.
CAUTION
1. Ensure that there are no traps and no kinks in the line set.
2. Do not coil extra line set. Fabricate the line set to the proper length.
2) Insulate the two copper tubes separately.
3) Install Parker quick connect couplings on each end. OS-QUICK, a universal quick
connect coupling kit available as optional equipment from Hoshizaki America, is
recommended. CAUTION! Before brazing, remove the Schrader valve core from the
access port. When brazing, protect the coupling by using a wet cloth to prevent
the coupling from overheating. Do not use silver alloy or copper alloy containing
arsenic.
4) Allow the coupling to cool, then replace the Schrader valve core.
5) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace
of refrigerant to the lines through the Schrader access ports on the Parker quick
connect couplings (if using an electronic leak detector), and then raise the pressure
using nitrogen gas (140 PSIG). WARNING! DO NOT use R-404A as a mixture with
pressurized air for leak testing.
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6) Evacuate through the Schrader access ports on the Parker quick connect couplings and
charge with R-404A refrigerant vapor to a pressure of 15 to 30 PSIG.
7) Connect the refrigerant lines to the appropriate male fittings on the remote condenser
unit first and then at the icemaker. Make a proper connection as follows:
a. Remove the protective covers from the male fitting and female coupling.
b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire male
fitting, including O-ring, diaphragm, and threads, before making the connection.
See Fig. 13.
CAUTION
Do not use thread sealant on the fittings. Use POE refrigerant oil or Parker
Super O Lube only.
c. Make sure the male fitting and female coupling are properly aligned, then start the
connection by hand to ensure that it is not cross threaded.
d. Tighten the connection with a wrench until it is tight. At this point, the nut has
covered most of the threads on the male fitting.
e. Mark a reference line on the female coupling and the remote condenser unit or
icemaker panel. Using a backup wrench on the back of the female coupling, tighten
the six-sided nut of the female coupling an additional 1/6 turn. See Fig. 14.
8) If the line set exceeds 66 feet, see "II.G.5 Refrigerant Charge (Line Set Exceeding
66 Feet)" for proper charging of the unit.
Remote Condenser Unit
Icemaker
Male Fitting
Female Coupling
Fig. 12
5/8" OD Discharge Line
(Insulated)
3/8" OD Liquid Line
(Insulated)
Service Loop
DO NOT USE
THREAD SEALANT
Male Fitting
Brush
POLYOL
ESTER
(POE) OIL
Fig. 13
Fig. 14
Threads
Apply POE Oil or
Parker Super O Lube
to Entire Male Fitting
Diaphragm
THREAD
SEALANT
PARKER
SUPER
O LUBE
O-Ring
Wrench
1/6
Turn
Reference
Line
After Tight,Tighten an
Additional 1/6 Turn
Wrench
Backup
Wrench
Backup
Wrench
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5. Refrigerant Charge (Line Set Exceeding 66 Feet)
CAUTION
The icemaker, line set, and remote condenser unit must contain the same
type of refrigerant. Mixing of refrigerants will result in improper operation and
possible damage to the refrigeration system.
The maximum line length for the standard refrigerant charge is 66 feet. Should an
installation require a longer line length, additional refrigerant must be added. Add 0.4 oz. of
R-404A for each foot over 66 feet to a maximum of 100 feet. Hoshizaki Technical Support is
available at 1-800-233-1940 for recommendations.
After weighing in the additional charge, mark the unit’s nameplate to show the new correct
total refrigerant charge.
6. Electrical Connection
WARNING
1. Electrical connection must meet 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.
2. THE REMOTE CONDENSER UNIT MUST BE GROUNDED. Install a proper
ground wire from the icemaker to the remote condenser unit. Use wire of an
appropriate gage and outdoor rating. Failure to properly ground the unit could
result in death or serious injury.
3. Install line and neutral wires from the fan motor leads in the icemaker to the
leads in the remote condenser unit junction box. Use wire of an appropriate
gage and outdoor rating.
4. Do not connect the fan motor leads in the icemaker to incoming power
source. Do not connect the fan motor leads in the icemaker together. Do not
allow the leads to contact the junction box walls.
5. Do not connect the remote condenser unit to an external power source.
6. To reduce the risk of electric shock, make all remote condenser unit
connections before connecting the icemaker power supply.
7. The icemaker should have power for a minimum of 4 hours prior to startup to
prevent compressor damage.
• Usually an electrical permit and services of a licensed electrician are required.
• The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.
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1) Remove the louver panel. See Fig. 15.
2) Remove the junction box cover on the remote condenser unit. Remove the fan motor
junction box cover on the icemaker.
3) Install a ground wire from the icemaker to the remote condenser unit. Use wire of an
appropriate gage and outdoor rating.
4) Install line and neutral wires from the fan motor leads in the icemaker to the leads in
the remote condenser unit junction box. Use wire of an appropriate gage and outdoor
rating.
5) Replace the junction box covers and the louver panel in their correct positions.
Icemaker
Fan Motor Junction
Box Cover
Remote Condenser Unit
Junction Box
Cover
Screw
Louver Panel
Screws
Fig. 15
7. Stacking Condenser Unit
1) Install the lower remote condenser unit as described earlier in this section.
2) Place the upper remote condenser unit on top of the lower. See Fig. 16.
3) Secure the upper remote condenser unit to the lower remote condenser unit with the
4 screws provided.
4) Install refrigerant lines and make electrical connection as described earlier in this
section.
Upper Remote
Condenser Unit
Screws
Screws
Lower Remote
Condenser Unit
Fig. 16
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H. Water Supply and Drain Connections
See Fig. 17, 18, and 19
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.
• The icemaker and condensation drain line(s), storage bin drain line, and water-cooled
condenser drain line (if applicable) 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 (if applicable) and the
floor drain.
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1. Icemaker
• Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" nominal
ID copper water tubing or equivalent is required 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 ID hard pipe or equivalent
is required 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.
Icemaker Water Supply Line Shut-Off Valve
Icemaker Water Supply Inlet 1/2" FPT
Minimum 3/8" Nominal
ID Copper Water Tubing
Icemaker Water Supply Line Drain Valve
Remote Condenser Line Set Connections
Icemaker
Icemaker
Drain Outlet
3/4" FPT
Vent Tube
Condensation
Bin Drain Outlet
3/4" FPT
Drain Outlet
3/8" OD Hard
Tube
Bin
Vent Tube
Separate piping to approved drain.
Leave a 2 inch (5 cm) vertical air gap
between the end of each pipe and the
drain.
2-inch (5-cm)
air gap
Minimum 3/4"
Nominal ID Hard Pipe
Floor
Drain
KM-1900SAH/3
KM-1900SRH/3
Fig. 17
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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
ID copper water tubing or equivalent is required 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 ID hard pipe or equivalent
is required 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).
Icemaker Water Supply
Line Shut-Off Valve
Icemaker Water Supply Inlet 1/2" FPT
Minimum 3/8" Nominal
ID Copper Water Tubing
Icemaker Water Supply Line Drain Valve
Icemaker
Condenser Water Supply Inlet 1/2" FPT
Icemaker
Drain Outlet
3/4" FPT
Vent Tube
Condenser Drain Outlet 3/8" FPT
Condensation
Drain Outlet
3/8" OD Hard
Tube
Minimum 3/8" Nominal
ID Copper Water Tubing
Condenser Water Supply Line Shut-Off Valve
Condenser Water Supply Line Drain Valve
Bin
Minimum 3/8"
Nominal ID Hard Pipe
Vent Tube
Separate piping to approved drain. Leave a
2 inch (5 cm) vertical air gap between the
end of each pipe and the drain.
2-inch (5-cm)
air gap
Bin Drain Outlet
3/4" FPT
Minimum 3/4"
Nominal ID Hard Pipe
Floor
KM-1900SWH/3
Drain
Connection To An Open Drain System
Fig. 18
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b) Connection to a Closed Loop System
• Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" nominal
ID copper water tubing or equivalent is required for the condenser water supply line.
• Condenser return outlet is 3/8" FPT. A minimum of 3/8" nominal ID copper water tubing or
equivalent is required 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
ID Copper Water Tubing
Icemaker Water Supply
Line Shut-Off Valve
Icemaker Water Supply
Inlet 1/2" FPT
Icemaker Water Supply
Line Drain Valve
Condenser Water
Supply Inlet
1/2" FPT
Condenser Return Outlet 3/8" FPT
Condenser Water Supply Line Shut-Off Valve
Icemaker
Condenser Return Line
Shut-Off Valve
Icemaker
Drain Outlet
3/4" FPT
Minimum 3/8" Nominal
ID Copper Water Tubing
Condensation
Drain Outlet
3/8" OD Hard
Tube
Condenser Return Line Drain Valve
Vent Tube
Separate piping to approved
Bin
drain. Leave a 2 inch (5 cm)
vertical air gap between the
end of each pipe and the drain.
Condenser Water
Supply Line
Drain Valve
Bin Drain Outlet
3/4" FPT
2-inch (5-cm)
air gap
Minimum 3/4"
Nominal ID Hard Pipe
Floor
Drain
KM-1900SWH/3
Fig. 19
Connection To A Closed Loop System
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I. 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 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? On remote air-cooled model, has
a proper ground also been installed to the remote condenser unit? On three phase
model, has the transformer's voltage tap switch been positioned to match incoming
voltage?
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? Have the fan blades (if
applicable) been checked to make sure they turn freely?
10) On remote air-cooled model, is the line set tightened and free of leaks and kinks?
11) On remote air-cooled model, has the icemaker power supply been on for a minimum of
4 hours?
12) 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?
13) Has the end user been given the name and telephone number of an authorized service
agent?
14) Has the warranty card been filled out and forwarded to the factory for warranty
registration?
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J. 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. To prevent damage to the water pump, do not leave the control switch in the
"WASH" position for extended periods of time when the water tank is empty.
4. On remote air-cooled model, the icemaker should have power for a minimum
of 4 hours prior to startup to prevent compressor damage.
5. At startup, confirm that all internal and external connections are free of leaks.
1) Open the water supply line shut-off valve(s).
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 cap located on the front bottom part of the
ice dropping hole. See Fig. 20. Allow the water tank to drain.
8) Replace the cap, insulation panel, and front panel in their correct positions. Be careful
not to cross thread the cap.
9) Clean the storage bin 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, particularly at higher
altitude locations.
12) On water-cooled units, confirm proper condenser drain outlet/return outlet temperature
as outlined in "II.H.2. Water-Cooled Condenser."
Cap
Cleaning
Valve
Ice Dropping Hole
Float Switch
Assembly
Fig. 20
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III. Cleaning and Maintenance
IMPORTANT
Ensure all components, fasteners, and thumbscrews are securely in place after
any cleaning or maintenance is done to the equipment.
A. Cleaning and Sanitizing Instructions
Hoshizaki recommends cleaning this icemaker at least once a year. More frequent
cleaning, 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. Always wear liquid-proof gloves to prevent the cleaning and sanitizing
solutions from coming into contact with skin.
3. Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
4. Never run the icemaker when the water tank is empty.
IMPORTANT
1. The cleaning valve is used to allow solution flow to the inside of the
evaporator during the cleaning and sanitizing operation. It should be closed
for all icemaking operation. The compressor will not operate unless this valve
is completely closed.
2. To open the cleaning valve, the valve handle should be parallel to the valve
body. To close the valve, the valve handle should be at a right angle to the
valve body.
OPEN
CLOSED
Cleaning and Sanitizing Operation
(allows solution flow to the inside of the
evaporator)
Normal Icemaking Operation
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1. Cleaning Procedure
1) Dilute 38 fl. oz. (1,124 ml) of Hoshizaki "Scale Away" with 7 gal. (26 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 on
after 3 minutes. The harvest cycle starts and the cubes will be removed from the
evaporator.
3) Turn off the power supply.
4) Remove the front panel, and then remove the insulation panel by first removing the
thumbscrew, lifting up the panel slightly and pulling it towards you.
5) Remove the cap located on the front bottom part of the ice dropping hole. Drain the
water tank. See Fig. 20.
6) Replace the cap 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 from the mounting bracket and remove the rubber
boot from the bottom of the assembly.
b. Remove the retainer rod from the bottom of the float switch assembly, 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 cap located on the front bottom part of the ice dropping hole. Drain the
water tank. Replace the cap 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.
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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 cap located on the front bottom part of the ice dropping hole. Drain the
water tank. Replace the cap 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 3.5 fl. oz. (104 ml or 7 tbs) of a 5.25% sodium hypochlorite solution (chlorine
bleach) with 7 gal. (26 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 that 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 cap located on the front bottom part of the ice dropping hole. Drain the
water tank. Replace the cap 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 using a neutral cleaner. Rinse thoroughly after cleaning.
13) Turn on the power supply to start the automatic icemaking process.
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B. Maintenance Instructions
IMPORTANT
This icemaker must be maintained individually, referring to the instruction
manual and labels provided with the icemaker.
1. Stainless Steel Exterior
To prevent corrosion, wipe the exterior occasionally with a clean, soft cloth. Use a damp
cloth containing a neutral cleaner to wipe off oil or dirt build up.
2. Storage Bin and Scoop
• Wash your hands before removing ice. Use the plastic scoop provided (bin accessory).
• The storage bin is for ice use only. Do not store anything else in the storage bin.
• Clean the scoop and storage bin liner using a neutral cleaner. Rinse thoroughly after
cleaning.
3. Condenser (air-cooled and remote air-cooled model)
Check the condenser once a year, and clean the coil if required by using a brush or
vacuum cleaner. More frequent cleaning may be required depending on location.
C. Preparing the Icemaker for Long Storage
CAUTION
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.
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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 cap located on the front bottom part of the ice
dropping hole. See Fig. 20. Allow the water tank to drain.
3) Replace the cap and the insulation panel in their correct positions. Be careful not to
cross thread the cap.
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. On water-cooled model only, first 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.
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 and front panel in their correct positions.
37
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HOSHIZAKI AMERICA, INC.
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 4878-2331 FAX (770) 487-3360 www.hoshizaki.com 91A1SJ10C
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