Hoshizaki Hoshizaki America, Inc.

Hoshizaki Hoshizaki America, Inc.
Hoshizaki
Hoshizaki America, Inc.
Modular Crescent Cuber
Serenity Series
Model
KMS-822MLH
Including
Condensing Unit Model
SRK-10H
“A Superior Degree
of Reliability”
INSTRUCTION MANUAL
www.hoshizaki.com
™
Issued: 11-3-2010
Revised: 3-16-2011
IMPORTANT
Only qualified service technicians should install, service, and maintain the
icemaker. No installation, service, or maintenance should be undertaken until
the technician has thoroughly read this Instruction Manual. Likewise, the owner/
manager should not proceed to operate the icemaker until the installer has
instructed them on its proper operation. Failure to install, operate, and maintain
the equipment in accordance with this manual may adversely affect safety,
performance, component life, and warranty coverage.
Hoshizaki provides this manual primarily to assist qualified service technicians in the
installation, maintenance, and service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, write, or send an e-mail message to the Hoshizaki Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
Phone: 1-800-233-1940 Technical Support
(770) 487-2331
Fax: 1-800-843-1056
(770) 487-3360
E-mail: [email protected]
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communication MUST include the following information:
• Model Number ________________________
• Serial Number ________________________
• Complete and detailed explanation of the problem.
2
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....................................................................................................................... 6
A. Electrical Data................................................................................................................ 6
1. KMS-822MLH........................................................................................................... 6
2. SRK-10H................................................................................................................... 7
B. Dimensions/Connections............................................................................................... 8
1. KMS-822MLH........................................................................................................... 8
2. SRK-10H................................................................................................................... 9
II. Installation and Operating Instructions............................................................................. 10
A. Location....................................................................................................................... 10
1. Icemaker................................................................................................................. 10
2. Remote Condensing Unit.........................................................................................11
B. Checks Before Installation............................................................................................ 12
1. Icemaker................................................................................................................. 12
2. Remote Condensing Unit........................................................................................ 12
C. How to Remove Panels................................................................................................ 13
1. Icemaker................................................................................................................. 13
2. Remote Condensing Unit........................................................................................ 13
D. Installation of the Icemaker.......................................................................................... 14
1. Setup....................................................................................................................... 14
2. Bin Control Installation............................................................................................ 15
E. Installation of the Remote Condensing Unit................................................................. 16
1. Setup....................................................................................................................... 16
2. Line Set.................................................................................................................. 16
3. Line Set Installation................................................................................................ 17
F. Electrical Connection.................................................................................................... 19
1. Icemaker................................................................................................................. 19
2. Remote Condensing Unit........................................................................................ 19
G. Water Supply and Drain Connections.......................................................................... 22
H. Final Checklist.............................................................................................................. 24
I. Startup........................................................................................................................... 25
III. Cleaning and Maintenance ............................................................................................. 26
A. Cleaning and Sanitizing Instructions............................................................................ 26
1. Cleaning Procedure................................................................................................. 27
2. Sanitizing Procedure - Following Cleaning Procedure............................................ 29
B. Maintenance................................................................................................................. 30
C. Preparing the Icemaker for Long Storage.................................................................... 31
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
Indicates a situation which could result in damage to the unit.
IMPORTANT
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:
• This unit should be disassembled or repaired only by qualified service
personnel to reduce the risk of electric shock, injury, or fire.
• Move the control switch to the "OFF" position and turn off the power supply to
the SRK condensing unit before servicing the KMS or SRK. Place the KMS
disconnect (if applicable) in the off position. Lockout/Tagout to prevent the
power supply from being turned back on inadvertently.
• Do not make any alterations to the unit. Alterations could result in electric
shock, injury, fire, or damage to the unit.
For KMS
• Power supply and ground connection are supplied from the SRK remote
condensing unit via the wire harness provided. Do not connect the wire
harness leads to an external power source.
• Wire harness routing (conduit) and disconnect (if required) 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.
• THE ICEMAKER MUST BE GROUNDED. Failure to properly ground
the icemaker could result in death, serious injury, or severe damage to
equipment.
4
For SRK
• 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.
• The remote condensing unit requires an independent power supply of proper
capacity. See the nameplate for electrical specifications. Failure to use a
properly sized breaker or fuse can result in a tripped breaker, blown fuses, or
damage to existing wiring. This could lead to heat generation or fire.
• THE REMOTE CONDENSING UNIT MUST BE GROUNDED. Failure to
properly ground the remote condensing unit could result in death or serious
injury.
5
I. Specifications
A. Electrical Data
1. KMS-822MLH
HOSHIZAKI ICE MAKER
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
PUMP
OTHER
DESIGN PRESSURE
REFRIGERANT
KMS-822MLH
115-120/60/1
120V 1.2FLA 60W
115V 0.8A
HI-467PSI LO-230PSI
404A
NOT INTENDED FOR OUTDOOR USE!
WARNING! Power supplied from remote condensing unit.
To reduce the risk of death, electric shock, serious injury, or
fire, turn off the remote condensing unit power supply before
servicing. Lockout/Tagout to prevent the power supply from
being turned back on inadvertently.
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
For certification marks, see the nameplate
on the rear panel.
The rating label and nameplate provide electrical and refrigerant data. The rating label can
be seen by removing the front panel. The nameplate is located on the rear panel.
IMPORTANT
This icemaker is designed for connection to Hoshizaki Remote
Condensing Unit, Model SRK-10H only! CONNECTION TO ANOTHER
REMOTE CONDENSING UNIT WILL VOID WARRANTY.
We reserve the right to make changes in specifications and design without prior notice.
6
2. SRK-10H
HOSHIZAKI CONDENSING UNIT
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
SRK-10H
208-230/60/1 (3 WIRE WITH
NEUTRAL FOR 115V)
230V 7.7RLA 56.0LRA
COMPRESSOR
FAN
115V 2.6FLA (total) 126W
OTHER
115V 0.4A
MAXIMUM FUSE SIZE
20 AMPS
MAX. HACR BREAKER(USA ONLY)
20 AMPS
MAX. CIRC. BREAKER (CANADA ONLY)
20 AMPS
MINIMUM CIRCUIT AMPACITY
20 AMPS
DESIGN PRESSURE
HI-467PSI LO-230PSI
REFRIGERANT
404A 15 LB.
MOTOR-COMPRESSOR THERMALLY PROTECTED
FOR OUTDOOR USE
Hoshizaki America, Inc.
Peachtree City, GA
www.hoshizaki.com
For certification marks, see the nameplate
on the condensing unit.
The nameplate provides electrical and refrigerant data. The nameplate is located on the
remote condensing unit.
We reserve the right to make changes in specifications and design without prior notice.
7
B. Dimensions/Connections
Unit: mm [in.]
1. KMS-822MLH
8
Note: Legs are included with condensing unit.
Leg height is 380 mm (14.96 in.).
Unit: mm [in.]
2. SRK-10H
9
II. Installation and Operating Instructions
WARNING
1. The icemaker and condensing unit must be installed in accordance with all
applicable national, state, and local codes and regulations.
2. Failure to install the equipment within these guidelines may adversely affect
safety, performance, component life, and warranty coverage.
3. 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. Location
1. Icemaker
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.
• 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.
10
2. Remote Condensing Unit
CAUTION
The remote condensing 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 condensing unit, for extended periods, outside of this
normal temperature range may affect icemaker performance.
The icemaker must be coupled with the appropriate remote condensing unit as listed below.
Hoshizaki Icemaker
Hoshizaki Remote
Condensing Unit
KMS-822MLH
SRK-10H
The remote condensing unit must be positioned in a permanent site under the following
guidelines:
• A firm and flat site.
• A dry and well ventilated area with 24" (61 cm) clearance in both front and rear for proper
air circulation and ease of maintenance and/or service should they be required. See Fig. 1.
• The maximum line set length is 66 feet.
• The maximum vertical distance between the remote condensing unit and icemaker is
33 feet above or 10 feet below the icemaker. These distances are measured fitting to fitting.
See Fig. 2.
• If the vertical distance between the remote condensing unit and the icemaker is greater
than 20 feet (not to exceed 33 feet), an "S" oil-trap (5/8" OD copper tubing) must be
installed in the suction line. The "S" oil-trap must be located halfway between the icemaker
and remote condensing unit. This ensures sufficient oil return to the compressor.
CAUTION
Failure to install the equipment within these guidelines may adversely affect
performance, component life, and warranty coverage.
Remote
Condensing
Unit
Icemaker
Max.
16.5
Feet
Min. 24" (61 cm) Clearance
24"
(61 cm)
24"
(61 cm)
Suction Line
"S" Oil-Trap
Air
Air
Service Loop
Max.
16.5
Feet
Icemaker
Bin
Fig. 1
Bin
Max.
33
Feet
Remote
Condensing
Unit
Service Loop
11
Fig. 2
Max.
10
Feet
B. Checks Before Installation
• Visually inspect the exterior of the shipping containers and immediately report any
damage to the carrier. Upon opening the containers, 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
or remote condensing unit, they will not work properly.
1. Icemaker
• Remove the panels to prevent damage when installing the icemaker. (See "II.C. 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.
• This icemaker can be installed on a dispenser unit or storage bin 22" wide or wider. For
options, contact your local Hoshizaki distributor.
• This icemaker is designed for connection to Hoshizaki Remote Condensing Unit,
Model SRK‑10H only!
NOTE: CONNECTION TO ANOTHER REMOTE CONDENSING UNIT WILL VOID
WARRANTY.
2. Remote Condensing Unit
• See the nameplate on the remote condensing unit. Check that your voltage supplied
corresponds with the voltage specified on the nameplate.
• Remove the panels to prevent damage when installing the remote condensing unit (See
"II.C. How to Remove Panels.")
• Remove the package containing the accessories.
• Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blades turn freely.
• Check that the compressor is snug on all mounting pads.
12
C. How to Remove Panels
1. Icemaker
• Front Panel: Remove the screw. Lift up and towards you.
• Top Panel: Lift off.
• Side Panel (R): Remove the screw. Slide forward slightly and lift off.
• Insulation Panel: Remove the thumbscrew. Lift up slightly and pull towards you.
• Top Insulation and Top Cover: Lift off.
Top Panel
Top Insulation
Top Cover
Insulation Panel
Side Panel (R)
Front Panel
Fig. 3
Icemaker
2. Remote Condensing Unit
• Top Panel: Remove the screws and lift off.
• Front Panel: Remove the screws and lift off.
• Access Panel: Remove the screws and lift off.
• Left Side/Rear Panel: Remove the screws and lift off.
• Louver Panel: Remove the screws and lift off.
• Right Side Panel: Remove the screws and lift off.
Top Panel
Right Side Panel
Access Panel
Louver Panel
Left Side/Rear Panel
Fig. 4
Front Panel
Remote Condensing Unit
13
D. Installation of the Icemaker
CAUTION
1. Power supply and ground wire to the icemaker are supplied from the remote
condensing unit. For details, see section "II.F. Electrical Connection."
2. Before operating the icemaker, the bin control must be installed correctly.
Failure to properly install the bin control could result in ice backup and unit
damage.
1. Setup
1) If mounting the icemaker on top of a dispenser unit, follow the dispenser unit's setup
procedure. If mounting the icemaker on top of a storage bin, unpack the storage bin,
and attach the 4 adjustable legs provided (bin accessory) to the bottom of the storage
bin.
2) 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 2 mounting brackets
and the bolts provided. See Fig. 5.
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.
6) If required, install a top kit. Contact your local Hoshizaki distributor for recommendations.
Icemaker
Bolts
Bin
Mounting
Brackets
Fig. 5
14
2. Bin Control Installation
CAUTION
Before operating the icemaker, the bin control assembly must be installed
correctly. Failure to properly install the assembly could result in ice backup and
unit damage.
Follow the instructions below for bin control assembly installation.
1) Remove the front panel, right side panel, and top panel.
2) Loosen the screws securing the control box, then lift the control box off and hang it from
the base. See Fig. 6.
3) Remove the insulation.
4) Remove the thumbscrews securing the bin control cover. Remove the bin control cover
and bin control.
5) Remove the bin control from the bin control cover.
6) Remove the bin control extension bracket and 2 thumbscrews from the accessory bag.
Route the bin control cable around one of the notches on either side of the extension
bracket, then secure the bin control to the bin control extension bracket using the
2 thumbscrews. See Fig. 7.
Note: All thumbscrews used in the bin control assembly are the same size.
7) Using 2 existing thumbscrews, attach the bin control extension bracket to the bin control
cover.
8) Route the bin control cable through the slot in the bin control cover, then place the bin
control assembly into position and secure with 2 existing thumbscrews.
9) Replace the insulation in its proper position.
10) Secure the control box in its proper position.
Insulation
Insulation
Bin Control
Cover
Slot
Bin
Control
Notch
Bin
Control
Cover
Bin Control Extension Bracket
and 2 Thumbscrews from
Accessory Bag
Control Box
Bin Control
Fig. 6
Fig. 7
15
E. Installation of the Remote Condensing Unit
WARNING
1. Installation must be performed by properly trained and EPA-certified service
personnel.
2. Power supply and ground wire to the icemaker are supplied from the remote
condensing unit. For details, see section "II.F. Electrical Connection."
1. Setup
1) Secure the legs to the remote condensing
unit with the 16 bolts and nuts provided.
See Fig. 8.
Bolt with
Split Lock
Washer and
Flat Washer
2) The legs have 8 mounting holes. Secure
the legs with 8 bolts (not included).
Fig. 8
Nut
2. Line Set
CAUTION
The icemaker, remote condensing unit, and line set must contain the same
type of refrigerant. Mixing of refrigerants will result in improper operation and
possible damage to the equipment.
• The maximum line set length is 66 feet and no refrigerant charge adjustment is necessary.
CAUTION! Do not exceed maximum line set length.
Model
KMS-822MLH
Line Set Size and Length for SRK-10H Remote Condensing Units
Liquid
Factory Line Set
Suction
Line
Line
Lengths (ft)
Maximum Line Set Length (ft)
1/2" OD
5/8" OD
25, 35, and 55
66
• The maximum vertical distance between the remote condensing unit and icemaker is
33 feet above or 10 feet below the icemaker. These distances are measured fitting to fitting.
See Figs. 9 and 10. CAUTION! Do not exceed maximum vertical distance.
• If the vertical distance between the remote condensing unit and the icemaker is greater
than 20 feet (not to exceed 33 feet), an "S" oil-trap (5/8" OD tubing) must be installed
in the suction line. The "S" oil-trap must be located halfway between the icemaker and
remote condensing unit. This ensures sufficient oil return to the compressor.
16
3. Line Set Installation
WARNING
1. R-404A itself is not flammable at atmospheric pressure and temperatures up
to 176°F (80°C).
2. R-404A itself is not explosive or poisonous. However, when exposed to
high temperatures (open flames), R-404A can be decomposed to form
hydrofluoric acid and carbonyl fluoride both of which are hazardous.
3. Do not use silver alloy or copper alloy containing arsenic.
4. Do not open any service valve until the line set installation is complete and
leak tested.
5. Ensure that there are no unnecessary traps and no kinks in the line set.
6. Do not coil extra line set.
7. Use an electronic leak detector or soap bubbles to check for leaks. Add a
trace of refrigerant to the line set tubing through the service valve access
ports (if using an electronic leak detector), and then raise the pressure using
nitrogen gas (140 PSIG). DO NOT use R-404A as a mixture with pressurized
air for leak testing.
1) Route the factory line set or appropriate size copper tubing. When field fabricating,
insulate the copper tubes separately. Leave a service loop behind the icemaker to allow
the icemaker to be pulled out for service. See Figs. 9 and 10. Note: The service loop is
not considered an oil trap.
2) Remove any extra line set length.
3) CAUTION! Before brazing, remove the Schrader valve cores from the service valve
access ports. When brazing, protect the service valve by using a wet cloth to
prevent the service valve from overheating.
4) Braze the line set to the icemaker service valves first, then to the remote condensing
unit service valves.
5) Allow the service valves to cool, then replace the Schrader valve cores.
6) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the line set tubing through the service valve access ports (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.
7) Attach the gauge manifold hoses to the service valve access ports and evacuate the
line set tubing. Allow the vacuum pump to pull down to a 29.9" Hg vacuum. Evacuating
period depends on pump capacity. Next, charge each line set tube with R-404A vapor
to a pressure of 15 to 30 PSIG.
8) Close both gauge manifold valves.
9) Disconnect the gauge manifold hoses.
10) Replace the access port caps and tighten.
11) Open the icemaker service valves first, then open the remote condensing unit service
valves.
17
12) Replace the service valve caps and tighten.
13) Insulate all exposed tubing and fittings.
Hoshizaki Technical Support is available at 1-800-233-1940 for recommendations.
Icemaker
Remote
Condensing Unit
(with compressor)
Bin
Max.
16.5
Feet
Suction Line
"S" Oil-Trap
1/2" OD
Liquid Line
(insulated)
Max.
33
Feet
Max.
10
Feet
Max.
16.5
Feet
Service Loop
5/8" OD Suction Line
(insulated)
Icemaker
Remote
Condensing Unit
(with compressor)
Bin
5/8" OD Suction Line
(insulated)
Service Loop
Fig. 9
18
Fig. 10
1/2" OD
Liquid Line
(insulated)
F. Electrical Connection
1. Icemaker
Power supply and ground connection are supplied from the remote condensing unit via
the wire harness provided. The wire harness is factory-connected to the icemaker.
WARNING
1. Power supply and ground connection are supplied from the remote
condensing unit via the wire harness provided. Do not connect the wire
harness leads to an external power source.
2. THE ICEMAKER MUST BE GROUNDED. Failure to properly ground
the icemaker could result in death, serious injury, or severe damage to
equipment.
3. To reduce the risk of electric shock, do not connect the remote condensing
unit power supply until after all wire harness connections have been made.
• Usually an electrical permit and services of a licensed electrician are required.
• The opening for the wire harness connection is 7/8" DIA to fit a 1/2" trade size conduit.
1) Route the wire harness from the icemaker to the remote condensing unit.
2. Remote Condensing Unit
WARNING
1. Electrical connection must be hard-wired to the remote condensing unit 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. The remote condensing 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. THE REMOTE CONDENSING UNIT MUST BE GROUNDED. Failure to
properly ground the remote condensing unit could result in death or serious
injury.
4. Electrical connections must be made in accordance with the instructions
on the "WARNING" tag, provided with the pig tail leads in the remote
condensing unit junction box. See Fig. 11.
5. The remote condensing unit 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.
• The white lead must be connected to the neutral conductor of the power source.
CAUTION! Miswiring results in severe damage to the icemaker.
• The openings for the power supply and wire harness connections are 7/8" DIA to fit a
1/2" trade size conduit.
19
1) Connect the wire harness to the appropriate terminals on the remote condensing unit's
terminal board. Be sure to connect the ground wire (included in the wire harness). Use
the wire harness supplied, or fabricate a wire harness using wire of an appropriate gage
and outdoor rating. Use the wiring label or Figs. 11 and 12 as a reference.
2) Supply power from the electrical panel to the remote condensing unit. This differs from
KM style installations.
3) Connect the wire leads in the power supply junction box to the power supplied from the
disconnect or electrical panel. Connect a ground wire to the ground screw.
4) Replace all removed parts and panels in their correct positions.
5) Turn on the power supply to the remote condensing unit.
CAUTION! The remote condensing unit should have power for a minimum of
4 hours prior to startup to prevent compressor damage.
SRK-10H
WARNING
ELECTRICAL CONNECTION
THIS UNIT MUST BE GROUNDED
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.
208-230/60/1
(3 wire with neutral for 115V)
115120V
208-230V
JUNCTION BOX
L1
N
BROWN
WHITE
L2
BLACK
4A4801-010
Fig. 11
20
21
V
V
P
P
HGV
Wire Color Code:
BK-black
BR-brown
GR-green
P-pink
V-violet
W-white
Contactor
Fuse 10A
BR
BR
BK
W
GR
Neutral
W
GR
Legend:
GND-ground
HGV-hot gas valve
CB-control board
LLV-liquid line valve
LLV
BK
GND
SRK Remote Condensing Unit
GND
V
CB
BR
Fuse 10A
BR
GR
V
KMS Icemaker Unit
(factory-connected)
Wire Harness Connections
HGV
P
P
LLV
BK
BK
W
Neutral
W
Fig. 12
G. Water Supply and Drain Connections
See Fig. 13
WARNING
1. Water supply and drain connections must be installed in accordance with
applicable national, state, and local codes and 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) and dispenser unit/storage bin 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,
condensation drain, and dispenser unit/storage bin and the floor drain.
22
1. Icemaker
• Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of 1/4" 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 5/8" OD hard tube.
The condensation drain line can be connected to the icemaker drain line or can be run
separately.
Minimum 1/4" Nominal ID Copper Water Tubing
Icemaker Water
Supply Inlet
1/2" FPT
Icemaker
Icemaker Water Supply
Line Shut-Off Valve
Icemaker Drain
Outlet 3/4" FPT
Icemaker Water Supply
Line Drain Valve
Vent Tube
Icemaker Condensation
Drain Outlet
5/8" OD Hard Tube
Bin
Bin Drain Outlet
3/4" FPT
Separate piping to approved
drain. Leave a 2-inch (5-cm)
vertical air gap between the
end of each pipe and the drain.
Vent Tube
Minimum 3/4" Nominal ID Hard Pipe
2-inch
(5-cm)
air gap
KMS-822MLH
Fig. 13
Floor
Drain
23
H. Final Checklist
WARNING
CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews
are securely in place after installation. Make sure that none have fallen into the
dispenser unit/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) Is there at least 24" (61 cm) clearance around the remote condensing unit for proper air
circulation and ease of maintenance and service?
5) Have the shipping carton, tape, and packing material been removed from the icemaker
and remote condensing unit? Are the cube guides in their correct positions?
6) Has the bin control assembly been installed correctly? If a top kit is required, has it been
installed correctly?
7) Have all electrical and water connections been made? Do electrical and water
connections meet all national, state, and local code and regulation requirements?
8) Has the power supply voltage been checked or tested against the nameplate rating?
Has a proper ground been installed to the remote condensing unit and icemaker unit?
For details, see section "II.F. Electrical Connection."
9) Has the electrical power supply been on to the remote condensing unit for a minimum of
4 hours?
10) Are the water supply line shut-off valve and drain valve installed? Has the water supply
pressure been checked to ensure a minimum of 10 PSIG and a maximum of 113 PSIG?
Note: The icemaker may stop running when the water supply is off, or if the pressure
is below 10 PSIG. When the proper water pressure is reached, the icemaker
automatically starts running again.
11) 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 been
checked to make sure they turn freely?
12) Is the line set free of leaks and kinks? If needed, has an "S" oil-trap been installed?
13) Are all components, fasteners, and thumbscrews securely in place?
14) 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?
15) Has the end user been given the name and telephone number of an authorized service
agent?
16) Has the warranty card been filled out and forwarded to the factory for warranty
registration?
24
I. Startup
WARNING
1. All parts are factory-adjusted. Improper adjustments may adversely affect
safety, performance, component life, and warranty coverage.
2. If the unit is turned off, wait for at least 3 minutes before restarting the unit to
prevent damage to the compressor.
3. To prevent damage to the water pump seal, do not leave the control switch in
the "WASH" position when the water tank is empty.
4. At startup, confirm that all internal and external connections are free of leaks.
5. The remote condensing unit should have power for a minimum of 4 hours
prior to startup to prevent compressor damage.
1) Open the water supply line shut-off valve.
2) Remove the front panel.
3) Move the control switch 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 cube guide B, then remove cube guide A. See
Fig. 14. Remove the overflow cap, overflow pipe, and water shield.
8) Remove the drain plug. Allow the water tank to drain, then replace the drain plug in its
correct position. Be careful not to cross thread it.
9) Replace the water shield, overflow pipe, overflow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overflow
pipe.
10) Clean the dispenser unit/storage bin liner
using a neutral cleaner. Rinse thoroughly
after cleaning.
11) Turn on the power supply to start the
automatic icemaking process.
12) To confirm bin control operation, press
and hold the bin control's actuator paddle
during the first 5 minutes of the freeze
cycle. The icemaker should shut down in
approximately 15 seconds.
Overflow Cap
Overflow Pipe
13) Replace the front panel in its correct
position.
Drain
Plug
Cube Guide A
Cube Guide B
Fig. 14
25
Water
Shield
III. Cleaning and Maintenance
This icemaker must be cleaned and maintained in accordance with the instruction
manual and labels provided with the icemaker. Consult with your local distributor
about cleaning and maintenance service. To obtain the name and phone number of
your local distributor, visit www.hoshizaki.com or call Hoshizaki Technical Support at
1‑800‑233‑1940 in the USA.
WARNING
1. Only qualified service technicians should attempt to service this icemaker.
2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews
are securely in place after any cleaning or maintenance is done to the unit.
Make sure that none have fallen into the dispenser unit/storage bin.
3. The dispenser unit/storage bin is for ice use only. Do not store anything else
in 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.
2. Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
3. Always wear liquid-proof gloves and goggles to prevent the cleaning and
sanitizing solutions from coming into contact with skin or eyes.
4. To prevent damage to the water pump seal, do not operate the icemaker with
the control switch in the "WASH" position when the water tank is empty.
26
IMPORTANT
1. The cleaning valve is opened during cleaning and sanitizing to allow solution
flow to the inside of the evaporator. It should be closed for all icemaking
operation. The compressor will not operate unless this valve is completely
closed.
2. To close the cleaning valve, the valve handle should be at a right angle to the
valve body. To open the cleaning valve, the valve handle should be parallel to
the valve body.
CLOSED
Normal Icemaking Operation
OPEN
Cleaning and Sanitizing Operation
(allows solution flow to the inside of
the evaporator)
1. Cleaning Procedure
1) Dilute 13.5 fl. oz. (400 ml) of Hoshizaki "Scale Away" with 2.5 gal. (9.5 l) of warm water.
2) 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 back on
after 3 minutes. The harvest cycle starts and the cubes will be removed from the
evaporator.
3) Turn off the power supply.
4) Remove the front panel. Remove
the insulation panel. Remove cube
guide B, then remove cube guide A.
See Fig. 15. Remove the overflow
cap, overflow pipe, and water shield.
5) Remove the drain plug. Allow the
water tank to drain, then replace the
drain plug in its correct position. Be
careful not to cross thread it.
Overflow Cap
Overflow Pipe
Drain
Plug
Cube Guide A
Cube Guide B
Fig. 15
27
Water
Shield
6) Replace the water shield, overflow pipe, overflow cap, cube guide A, and cube guide B
in their correct positions. Be careful not to cross thread the overflow pipe.
7) In bad or severe water conditions, clean the float switch as described below. Otherwise,
continue to step 8.
a. Disconnect the vent tube and the flush tube from the top of the float switch housing,
then remove the float switch assembly. Remove the rubber boot from the bottom of
the assembly.
b. Remove the retainer rod from the bottom of the float switch housing, then remove
the float. Be careful not to bend the retainer rod excessively when removing it.
c. Wipe down the float switch 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 to the "WASH" position. Replace the insulation panel and the
front panel in their correct positions.
11) Turn on the power supply to start the washing process.
12) Turn off the power supply after 30 minutes.
13) Remove the front panel.
14) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overflow cap, overflow pipe, and water shield.
15) Remove the drain plug. Allow the water tank to drain, then replace the drain plug in its
correct position.
16) Replace the water shield, overflow pipe, overflow cap, cube guide A, cube guide B, and
insulation panel in their correct positions.
17) Move the control switch to the "ICE" position.
18) Close the cleaning valve.
Note: The icemaker will not operate unless the cleaning valve is completely closed.
19) Replace the front panel in its correct position.
20) Turn on the power supply to fill the water tank with water.
21) Turn off the power supply after 3 minutes.
22) Remove the front panel and fully open the cleaning valve.
23) Move the control switch to the "WASH" position.
24) Replace the front panel in its correct position.
25) Turn on the power supply to rinse off the cleaning solution.
26) Turn off the power supply after 5 minutes.
27) Remove the front panel.
28
28) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overflow cap, overflow pipe, and water shield.
29) Remove the drain plug. Allow the water tank to drain, then replace the drain plug in its
correct position.
30) Replace the water shield, overflow pipe, overflow cap, cube guide A, cube guide B, and
insulation panel in their correct positions.
31) Repeat steps 17 through 30 three more times to rinse thoroughly.
Note: If you do not sanitize the icemaker, go to step 12 in "2. Sanitizing Procedure."
2. Sanitizing Procedure - Following Cleaning Procedure
1) Dilute a 5.25% sodium hypochlorite solution (chlorine bleach) with warm water (add
1.25 fl. oz. (37 ml) to 2.5 gal. (9.5 l) of water).
2) Remove the insulation panel.
3) Pour the sanitizing solution into the water tank.
4) Replace the insulation panel and the front panel in their correct positions.
Note: Make sure that the control switch is in the "WASH" position and the cleaning valve
is open.
5) Turn on the power supply to start the sanitizing process.
6) Turn off the power supply after 15 minutes.
7) Remove the front panel.
8) Remove the insulation panel. Remove cube guide B, then remove cube guide A.
Remove the overflow cap, overflow pipe, and water shield.
9) Remove the drain plug. Allow the water tank to drain, then replace the drain plug in its
correct position.
10) Replace the water shield, overflow pipe, overflow cap, cube guide A, cube guide B, and
insulation panel in their correct positions.
11) Repeat steps 17 through 30 in "1. Cleaning Procedure" two times to rinse thoroughly.
12) Close the cleaning valve.
13) Move the control switch to the "ICE" position.
14) Replace the front panel in its correct position.
15) Clean the dispenser unit/storage bin liner using a neutral cleaner. Rinse thoroughly after
cleaning.
16) Turn on the power supply to start the automatic icemaking process.
29
B. Maintenance
This icemaker must be maintained individually, referring to the instruction manual and
labels provided with the icemaker.
WARNING
1. Only qualified service technicians should attempt to service this icemaker.
2. Disconnect power before servicing.
1. Stainless Steel Exterior
To prevent corrosion, wipe the exterior occasionally with a clean, soft cloth. Use a damp
cloth containing a neutral cleaner to wipe off oil or dirt buildup.
2. 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.
3. Condenser
Check the condenser once a year, and clean the coil if required by using a brush or
vacuum cleaner. More frequent cleaning may be required depending on location.
•
30
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 and remove the front panel.
2) Close the icemaker water supply line shut-off valve and open the icemaker water supply
line drain valve. See Fig. 13.
3) Allow the line to drain by gravity.
4) Attach a compressed air or carbon dioxide supply to the icemaker water supply line
drain valve.
5) Make sure at least 3 minutes have elapsed since you turned off the power supply. Make
sure the control switch is in the "ICE" position. Replace the front panel in its correct
position and turn on the power supply.
6) Blow the icemaker water supply line out using the compressed air or carbon dioxide
supply.
7) Close the icemaker water supply line drain valve.
2. Drain the water tank:
1) Turn off the power supply.
2) Remove the front panel, then move the control switch to the "OFF" position.
3) Remove the insulation panel. Remove cube guide B, then remove cube guide A. See
Fig. 15. Remove the overflow cap, overflow pipe, and water shield.
4) Remove the drain plug. Allow the water tank to drain, then replace the drain plug in its
correct position. Be careful not to cross thread it.
5) Replace the water shield, overflow pipe, overflow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overflow
pipe.
6) Remove all ice from the dispenser unit/storage bin. Clean the dispenser unit/storage bin
using a neutral cleaner. Rinse thoroughly after cleaning.
7) Replace the front panel in its correct position.
31
HOSHIZAKI AMERICA, INC.
618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A1YF10B
32
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