Models
KMS-2000MLJ
Including
Condensing Unit Models
SRK-20J/3
Modular Crescent Cuber
Serenity Series
Instruction Manual
Issued: 1-23-2018
Revised: 10-31-2024
hoshizakiamerica.com
2
WARNING
Only qualied service technicians should install and service the icemaker. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizakiamerica.com. No installation or service 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 will adversely affect safety,
performance, component life, and warranty coverage and may result in costly water
damage. Proper installation is the responsibility of the installer. Product failure or
property damage due to improper installation is not covered under warranty.
Hoshizaki provides this manual primarily to assist qualied service technicians in the
installation, operation, maintenance, and service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, send an e-mail message, or write to the Hoshizaki Technical
Support Department for assistance.
Phone: 1-800-233-1940; (770) 487-2331
E-mail: techsuppor[email protected]
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.
3
CONTENTS
Important Safety Information ................................................................................................. 4
I. Specications ...................................................................................................................... 6
A. Electrical and Refrigerant Data ..................................................................................... 6
1. KMS-2000MLJ ......................................................................................................... 6
2. SRK-20J/3 ............................................................................................................... 6
B. Dimensions/Connections .............................................................................................. 7
1. KMS-2000MLJ ......................................................................................................... 7
2. SRK-20J/3 ............................................................................................................... 8
II. Installation and Operating Instructions .............................................................................. 9
A. Location ........................................................................................................................ 9
1. Icemaker .................................................................................................................. 9
2. Remote Condensing Unit ....................................................................................... 10
B. Checks Before Installation ............................................................................................ 11
1. Icemaker .................................................................................................................11
2. Remote Condensing Unit ........................................................................................ 11
C. How to Remove Panels ............................................................................................... 12
1. Icemaker ................................................................................................................ 12
2. Remote Condensing Unit ....................................................................................... 12
D. Installation of the Icemaker ......................................................................................... 13
1. Setup ...................................................................................................................... 13
2. Water Tank Removal .............................................................................................. 15
E. Installation of the Remote Condensing Unit ................................................................ 19
1. Setup ...................................................................................................................... 19
2. Line Set ................................................................................................................. 19
3. Line Set Installation ............................................................................................... 20
F. Electrical Connection ................................................................................................... 22
G. Water Supply and Drain Connections ......................................................................... 25
H. Final Checklist ............................................................................................................. 27
1. Pre-Startup ............................................................................................................. 27
2. Post-Startup ........................................................................................................... 28
I. Startup .......................................................................................................................... 29
III. Maintenance .................................................................................................................. 31
A. Maintenance Schedule ................................................................................................ 31
B. Cleaning and Sanitizing Instructions .......................................................................... 32
C. Preparing the Icemaker for Periods of Non-Use .......................................................... 35
V. Disposal ........................................................................................................................... 37
IMPORTANT
This manual should be read carefully before the icemaker is installed and operated.
Read the warnings and guidelines contained in this booklet carefully as they
provide essential information for the continued safe use and maintenance of the
icemaker. Retain this booklet for any further reference that may be necessary.
4
Important Safety Information
Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, damage to the unit, or damage to property.
WARNING Indicates a hazardous situation which could result in death or
serious injury.
NOTICE Indicates a situation which could result in damage to the unit or
property.
IMPORTANT Indicates important information about the installation, use, and
care of the unit.
WARNING
This appliance 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. Failure to install, operate, and
maintain the equipment in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage and may result in costly water
damage.
To reduce the risk of death, electric shock, serious injury, or re, follow basic
precautions including the following:
• Only qualied service technicians should install and service the appliance.
• Move the control switch to the "OFF" position and turn off the power supply to
the remote condensing unit before servicing. Place the icemaker disconnect
(ifapplicable) in the "OFF" position. Lockout/Tagout to prevent the power supply
from being turned back on inadvertently.
• This appliance must be installed in accordance with applicable national, state, and
local codes and regulations.
• To reduce the risk of electric shock, do not touch the control switch or service switch
with damp hands.
• Do not make any alterations to the unit. Alterations could result in electric shock,
injury, re, or damage to the appliance.
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory, or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction concerning use of the
appliance by a person responsible for their safety.
• Young children should be properly supervised around this appliance.
• Do not climb, stand, or hang on the icemaker or allow children or animals to do so.
Serious injury could occur or the icemaker could be damaged.
• Do not use combustible spray or place volatile or ammable substances near the
unit. They might catch re.
• Keep the area around the unit clean. Dirt, dust, or insects in the appliance could
cause harm to individuals or damage to the equipment.
5
WARNING, continued
Icemaker
• Do not connect the icemaker to an external power source. Icemaker power supply
and ground connection are supplied from the remote condensing unit via the wire
bundle provided with the remote condensing unit.
• Wire bundle 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, re, or damage.
• THE ICEMAKER MUST BE GROUNDED. Failure to properly ground the icemaker
could result in death or serious injury.
Remote Condensing Unit
• Remote condensing unit electrical connection must be hard-wired and must meet
national, state, and local electrical code requirements. Failure to meet these code
requirements could result in death, electric shock, serious injury, re, or damage.
• The remote condensing unit requires an independent power supply of proper
capacity. See the nameplate for electrical specications. Failure to use an
independent power supply of proper capacity can result in a tripped breaker, blown
fuse, damage to existing wiring, or component failure. This could lead to heat
generation or re.
• THE REMOTE CONDENSING UNIT MUST BE GROUNDED. Failure to properly
ground the remote condensing unit could result in death or serious injury.
NOTICE
• Follow the water supply, drain connection, and maintenance instructions carefully to
reduce the risk of costly water damage.
• In areas where water damage is a concern, install in a contained area with a oor
drain.
• Install the appliance in a location that stays above freezing. Normal operating
ambient temperature must be within 45°F to 100°F (7°C to 38°C).
• Do not leave the appliance on during extended periods of non-use, extended
absences, or in sub-freezing temperatures. To properly prepare the appliance for
these occasions, follow the instructions in "III.C. Preparing the Icemaker for Periods
of Non-Use."
• Do not place objects on top of the appliance.
• The dispenser unit/ice storage bin is for ice use only. Do not store anything else in
the dispenser unit/ice storage bin.
6
I. Specications
A. Electrical and Refrigerant Data
The rating label (KMS) and nameplate (KMS and SRK) provide electrical and refrigerant
data. The rating label can be seen by removing the front panel. The nameplate is located
on the rear panel of the icemaker and on the side panel of the remote condensing unit.
Forcertication marks, see the nameplate.
We reserve the right to make changes in specications and design without prior notice.
1. KMS-2000MLJ
Model Number KMS-2000MLJ
AC Supply Voltage 115-120/60/1
Pump 120V 1.2FLA 60W
Other 115V 0.8A
Design Pressure HI-467PSI LO-230PSI
Total Refrigerant
Charge
404A
Total Refrigerant Charge
with Hoshizaki Remote
Condensing Unit
SRK-20J/3: 27 LB. 5 OZ.
2. SRK-20J/3
Model Number SRK-20J SRK-20J3
AC Supply Voltage 208-230/60/1 (3 wire with
neutral)
208-230/60/3
Compressor 230V 17.5RLA 121LRA 230V 11.0RLA 105LRA
Fan 115V 2.6FLA (total) 126W 115V 2.6FLA (total) 126W
Other 115V 1.2A 115V 1.2A
Maximum Fuse Size 30 AMPS 20 AMPS
Max. HACR Breaker
(USA Only)
30 AMPS 20 AMPS
Max. Circ. Breaker
(Canada Only)
30 AMPS 20 AMPS
Minimum Circuit
Ampacity
30 AMPS 20 AMPS
Design Pressure HI-467PSI LO-230PSI HI-467PSI LO-230PSI
Refrigerant 404A
Total Refrigerant Charge
with Hoshizaki Icemaker
KMS-2000MLJ:
27 LB. 5 OZ.
404A
Total Refrigerant Charge
with Hoshizaki Icemaker
KMS-2000MLJ:
27 LB. 5 OZ.
7
B. Dimensions/Connections
1. KMS-2000MLJ
Unit: mm [in.]
8
2. SRK-20J/3
Unit: mm [in.]
Note: Legs are included with remote condensing unit.
Leg height is 380 mm (14.96 in.).
9
II. Installation and Operating Instructions
WARNING
• The icemaker and remote condensing unit must be installed in accordance with
applicable national, state, and local codes and regulations.
• Failure to install, operate, and maintain the equipment in accordance with this
manual will adversely affect safety, performance, component life, and warranty
coverage and may result in costly water damage.
• 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
NOTICE
• This icemaker is not intended for outdoor use. Normal operating ambient
temperature must be within 45°F to 100°F (7°C to 38°C); Normal operating
water temperature must 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.
• 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 Periods of Non-Use."
• The icemaker should not be located next to ovens, grills, or other high heat producing
equipment.
• Allow 6" (15 cm) clearance at rear and sides for proper air circulation and ease of
maintenance and/or service should they be required.
• The location must provide a rm and level foundation for the equipment.
10
2. Remote Condensing Unit
NOTICE
• The remote condensing unit is intended for outdoor use. Normal operating ambient
temperature must 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.
• Maximum line set length is 66 feet. No refrigerant charge adjustment is necessary.
• The maximum vertical distance between the remote condensing unit and icemaker
is 33feet above or 10 feet below the icemaker. These distances are measured
tting to tting. See Fig. 1.
• 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.
The remote condensing unit must be positioned in a permanent site under the following
guidelines:
• A rm and at 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. 2.
Fig. 1
Fig. 2
Min. 24" (61 cm) Clearance
Air
Air
24"
(61 cm)
24"
(61 cm)
Icemaker
Remote Condensing
Unit
Suction Line
"S" Oil-Trap
Service Loop
Max. 33 Feet
Max.
16.5
Feet
Max.
16.5
Feet
Bin
Icemaker
Service
Loop
Max. 10 Feet
Remote Condensing
Unit
Bin
11
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." NOTICE! Leave the front frame in place until "II.D.2 Water Tank
Removal."
• Remove the package containing the accessories.
• Remove the protective plastic lm from the panels. If the icemaker is exposed to the sun
or to heat, remove the lm 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 30" wide or wider.
Foroptions, contact your local Hoshizaki distributor.
• NOTICE! This icemaker is designed for connection to Hoshizaki Remote
Condensing Unit Model SRK-20J or SRK-20J3 only! 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 specied 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.
• Right Side Panel: Remove the screw.
Slide forward slightly and lift off.
• Insulation Panel: Remove the
thumbscrews. Lift up slightly and pull
towards you.
• Top Insulation: Lift off.
• Front Frame: NOTICE! Leave the
front frame in place until "II.D.2
Water Tank Removal."
Fig. 4
Top Panel
Right Side Panel
Louver Panel
Left Side/Lower Panel (L1)
Front Panel
Remote Condensing Unit
Right Side Panel
Fig. 3
Top Panel
Front Panel
Insulation
Panel
Icemaker
2. Remote Condensing Unit
• Top Panel: Remove the screws and lift off.
• Front Panel: Remove the screws and lift off.
• Left Side/Lower Panel (L1): Remove the screws and lift off.
• Left Side/Upper Panel Left (L2): Remove the screws and lift off.
• Left Side/Upper Panel Right (L3): Remove the screws and lift off.
• Louver Panel: Remove the screws and lift off.
• Right Side Panel: Remove the screws and lift off.
Legs
Left Side/Upper Panel Left (L2)
Front Frame
Top Insulation
Left Side/Upper Panel Right (L3)
13
D. Installation of the Icemaker
NOTICE
• Donot connect the icemaker to an external power source. Icemaker power supply
and ground connection are supplied from the remote condensing unit via the wire
bundle provided with the remote condensing unit. For details, see "II.F. Electrical
Connection."
• 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.
• Failure to properly seal the icemaker to the dispenser unit/storage bin could result
in water leakage and costly water 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 its permanent location.
3a) Dispenser Unit: Install the dispenser unit adapter kit. Make sure the dispenser
unit adapter kit opening and the icemaker water tank opening match. If not, cut the
dispenser unit adapter kit to the dimensions needed to match the icemaker water
tank opening. NOTICE! The dispenser unit adapter kit opening MUST match the
icemaker water tank opening. A smaller opening may result in water leaking.
Seal the adapter kit to the dispenser unit with RTV-748 sealant (provided) or
equivalent. See Fig. 5.
3b) Storage Bin: If required, install a top kit, a storage bin extension bracket HS kit, or
abrace HSkit. Contact your local Hoshizaki distributor for recommendations.
4) Place the icemaker on top of the dispenser unit/storage bin.
Fig. 5
Icemaker Water Tank Opening
Dispenser Unit Application
543 mm
[21.4 in.]
550 mm
[21.7 in.]
25 mm
[1 in.]
25 mm
[1 in.]
14
5a) Dispenser Unit: Follow the dispenser unit's instructions for securing the icemaker to
the dispenser unit. If no instructions are available, secure the icemaker to the dispenser
unit using the mounting brackets provided. Rotate the mounting brackets so that
they t ush to the dispensing unit. SeeFig.6a. Secure the mounting brackets to the
icemaker with the bolts provided. Secure the mounting brackets to the dispensing unit
with self-tapping screws (not provided). NOTICE! Use care to avoid damage to the
dispenser unit components when attaching the mounting brackets. Seal the outer
perimeter of the icemaker to the dispenser unit with RTV-748 sealant (provided) or
equivalent.
5b) Storage Bin: Secure the icemaker to the storage bin using the 2mounting brackets and
the bolts provided. See Fig.6b. Seal the outer perimeter of the icemaker to the storage
bin with RTV-748 sealant (provided) or equivalent.
6) Level the icemaker and dispensing unit/storage bin in both the left-to-right and
front-to-rear directions. Ifusing a storage bin, adjust the storage bin legs to make the
icemaker level.
Dispenser Unit Application
Storage Bin Application
Mounting
Brackets
Bolts
Dispenser
Unit
Storage Bin
Fig. 6a Fig. 6b
Icemaker
Icemaker
Mounting
Brackets
Bolts
Self-Tapping
Screws
(Not Provided)
Seal the Outer Perimeter with
RTV-748 Sealant or Equivalent
15
2. Water Tank Removal
1) Remove the front frame and splash curtain. See Fig. 7.
2) Disconnect the pump suction hose, drain pipe, and oat connection hose at the
evaporator case wall. Disconnect the water tank drain hose from the bottom of the
water tank. Although the water tank can be removed at this point, do not remove it yet
because the bin control is taped inside the water tank.
NOTICE
The bin control cable is routed through the back of the icemaker. If care is not taken
when removing the water tank, the bin control cable could be severed.
Pump Suction Hose
Drain Pipe
Water Tank Drain Hose
Float Connection Hose
Splash Curtain
Fig. 7
Evaporator Case Wall
Water Tank
Front Frame
3) Pull out the water tank only as far as shown in Fig. 8.
4) Remove the cube guide, then remove the bin control assembly.
5) Being careful not to pull the bin control cable, remove the water tank completely
from the icemaker.
6) Remove the remaining pieces of tape from the water tank and leave the water tank out
of the icemaker for now.
Fig. 8
Bin Control Cable
Cube Guide
16
7) Dispenser Unit: Seal the inner perimeter of the icemaker evaporator section to the
dispenser unit adapter kit with RTV-748 sealant (provided) or equivalent. See Fig. 9.
Make sure the inner perimeter sealant meets the outer perimeter sealant and that there
are no gaps.
WARNING
The following locations must be properly sealed with RTV-748 sealant or
equivalent. Otherwise, water leakage may occur which could result in a slip hazard
and costly water damage.
• Contact points between the dispenser unit and the dispenser unit adapter kit.
• Contact points between the icemaker evaporator section and the dispenser unit
adapter kit.
• Outer perimeter contact points between the dispenser unit and icemaker.
Fig. 9
Icemaker
Evaporator
Section
Dispenser
Unit
Seal the Inner Perimeter with RTV-748 Sealant or Equivalent.
Make sure the inner perimeter sealant meets the outer
perimeter sealant and that there are no gaps.
17
3. Bin Control
NOTICE
Before operating the icemaker, the bin control assembly must be installed correctly.
Failure to properly install the bin control assembly could result in ice backup and
unit damage.
1) Remove the 2 outer switch cover thumbscrews from the switch cover. See Fig. 10.
2) Remove the 2 inner switch cover thumbscrews. Slide the bin control out of the switch
mount.
3) Mount the bin control to the extension bracket (accessory bag) using the 2 thumbscrews
from the accessory bag. Route the bin control cable from the outer corner of the bin
control up through the gap in the extension bracket.
4) Using the 2 thumbscrews removed in step 2, mount the extension bracket to the switch
cover.
5) Replace the outer switch cover thumbscrews into the slots on the switch bracket. Do not
tighten.
Fig. 10
Outer Switch Cover
Thumbscrews
Switch Cover
Switch Bracket
Inner Switch Cover
Thumbscrews
Switch Bracket
Thumbscrews
Extension Bracket
(Accessory Bag)
Bin Control
Extension Bracket
Thumbscrews
(Accessory Bag)
Switch Mount
Bin Control Cable
Extension Bracket
Gap
Extension Bracket
Gap
18
6) Slide the bin control assembly all the way back until the switch mount is ush with the
dispenser unit bin wall or the storage bin wall, top kit extension bracket, or brace. See
Fig. 11. Tighten the outer switch cover thumbscrews.
NOTICE
On dispenser unit applications, do not leave a gap between the bin control and the
wall of the dispenser unit bin wall. If a gap is left between the bin control and the
wall of the dispenser unit bin wall, ice may get between them and damage the bin
control.
Dispenser Unit: Slide the bin control
assembly all the way back until the switch
mount is ush with the dispenser unit bin
wall.
Storage Bin: Slide the bin control assembly
all the way back until the switch mount is
ush with the storage bin wall, extension
bracket, or brace.
Dispenser
Unit
Icemaker
Fig. 11
Switch Mount
Evaporator
Bin Control Cable
Cable Tie
To Control Box
Plastic Pipe
Hose
Fig. 12
7) Pull the bin control cable so that there is no slack in the ice drop area, then secure the
hose that the lead runs through with a cable tie. See Fig. 12.
8) Replace the water tank in the icemaker and reconnect the 4 hoses.
Note: Panels replaced during "II.I. Startup."
19
E. Installation of the Remote Condensing Unit
WARNING
• Installation must be performed by properly trained and EPA-certied service
personnel.
• Power supply and ground wire to the icemaker are supplied from the remote
condensing unit. For details, see "II.F. Electrical Connection."
1. Setup
1) Secure the legs to the remote condensing
unit with the 16 bolts and nuts provided.
See Fig. 13.
2) The legs have 8 mounting holes. Secure
the legs with 8 bolts (not included).
Nut
Fig. 13
Bolt with
Split Lock
Washer and
Flat Washer
2. Line Set
NOTICE
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 equipment.
• The maximum line set length is 66 feet and no refrigerant charge adjustment is necessary.
NOTICE! Do not exceed maximum line set length.
Line Set Size and Length for SRK-20J(3) Remote Condensing Units
Model
Liquid
Line
Suction
Line
Factory Line Set
Lengths (ft) Maximum Line Set Length (ft)
KMS-2000MLJ 1/2" OD 3/4" OD 25, 35, and 55 66
• The maximum vertical distance between the remote condensing unit and icemaker is
33feet above or 10 feet below the icemaker. These distances are measured tting to tting.
See Fig. 14. NOTICE! 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 (3/4" 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.
20
3. Line Set Installation
WARNING
• R-404A itself is not ammable at atmospheric pressure and temperatures up to
176°F (80°C).
• R-404A itself is not explosive or poisonous. However, when exposed to high
temperatures (open ames), R-404A can be decomposed to form hydrouoric
acid and carbonyl uoride both of which are hazardous.
• Do not use silver alloy or copper alloy containing arsenic.
• Do not open any service valve until the line set installation is complete and leak
tested.
• Ensure that there are no unnecessary traps and no kinks in the line set.
• Do not coil extra line set.
• 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 appropriate size copper tubing. Insulate the copper tubes separately. Leave a
service loop behind the icemaker to allow the icemaker to be pulled out for service.
See Fig. 14. Note: The service loop is not considered an oil trap.
2) Remove any extra line set length.
3) Choose the icemaker/line set conguration (top access or rear access). Use elbows
as necessary. When using the top access holes, move the access covers to the rear
access holes. See Fig. 14.
4) NOTICE! 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.
5) Braze the line set to the icemaker service valves rst, then to the remote condensing
unit service valves.
6) Allow the service valves to cool, then replace the Schrader valve cores.
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).
WARNING! Do not use R-404A as a mixture with pressurized air for leak testing.
8) 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.
9) Close both gauge manifold valves.
10) Disconnect the gauge manifold hoses.
11) Replace the access port caps and tighten.
21
12) Open the icemaker service valves rst, then open the remote condensing unit service
valves.
13) Replace the service valve caps and tighten.
14) Insulate all exposed tubing and ttings.
Hoshizaki Technical Support is available at 1-800-233-1940 for recommendations.
Fig. 14
Suction Line
"S" Oil-Trap
Max. 33 Feet
Max.
16.5
Feet
Max.
16.5
Feet
Remote Condensing Unit
(with compressor)
Bin
Icemaker
Service
Loop
Max. 10 Feet
Remote Condensing Unit
(with compressor)
Icemaker
Service Loop
Bin
3/4" OD Suction Line
(insulated)
1/2" OD
Liquid Line
(insulated)
1/2" OD
Liquid Line
(insulated)
3/4" OD Suction Line
(insulated)
22
F. Electrical Connection
WARNING
Icemaker
• Donot connect the icemaker to an external power source. Icemaker power supply
and ground connection are supplied from the remote condensing unit via the wire
bundle provided with the remote condensing unit.
• Wire bundle routing (conduit) and disconnect (if required) must meet national, state,
and local electrical code requirements. If fabricating a wire bundle, use wire of an
appropriate gage and outdoor rating. Failure to meet these code requirements could
result in death, electric shock, serious injury, re, or damage.
• THE ICEMAKER MUST BE GROUNDED. Failure to properly ground the icemaker
could result in death or serious injury.
• To reduce the risk of electric shock, do not connect the remote condensing unit
power supply until after all wire bundle connections have been made.
Remote Condensing Unit
• Remote condensing unit electrical connection must be hard-wired and must meet
national, state, and local electrical code requirements. Failure to meet these code
requirements could result in death, electric shock, serious injury, re, or damage.
• The remote condensing unit requires an independent power supply of proper
capacity. See the nameplate for electrical specications. Failure to use an
independent power supply of proper capacity can result in a tripped breaker,
blown fuse, damage to existing wiring, or component failure. This could lead to
heat generation or re.
• THE REMOTE CONDENSING UNIT MUST BE GROUNDED. Failure to properly
ground the remote condensing unit could result in death or serious injury.
• Remote condensing unit electrical connection must be made in accordance with
the instructions on the "WARNING" tag provided with the pig tail leads in the
remote condensing unit's power supply junction box. See Figs. 15a and 15b.
NOTICE
The remote condensing unit must 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 openings for the power supply and wire bundle connections are 7/8" DIA. to t a
1/2" trade size conduit.
23
1) Route the wire bundle between the icemaker and remote condensing unit. Use the
wire bundle supplied with the remote condensing unit, or fabricate a wire bundle using
wire of an appropriate gage and outdoor rating. Use the wiring label or Fig. 16 as a
reference.
2a) Icemaker: Connect the wire bundle ground wire to the icemaker ground screw, then
connect the rest of the wire bundle wires to the icemaker terminal block.
WARNING! Do not connect the wire bundle ground wire to the icemaker terminal
block.
2b) Remote Condensing Unit: Connect the wire bundle ground wire to the remote
condensing unit ground screw (located next to the terminal block).
WARNING! Do not connect the wire bundle ground wire to the remote
condensing unit terminal block.
3) Connect the power supply from the disconnect or electrical panel to the leads in
the remote condensing unit's power supply junction box. This differs from KM style
installations. Connect a ground wire to the ground screw. See Figs. 15a and 15b.
• On single phase models, the white lead must be connected to the neutral conductor
of the power source. NOTICE! Miswiring may result in severe damage to the
icemaker.
• On three phase models, the transformer’s voltage tap switch must be positioned to
match incoming voltage at startup.
• NOTICE! On three phase models, connect the highest incoming voltage
supply ("stinger leg") to the power wire dedicated to the compressor. See the
wiring label on the remote condensing unit.
4) Replace all removed parts and panels in their correct positions.
5) Turn on the power supply to the remote condensing unit. NOTICE! The remote
condensing unit must have power for a minimum of 4hours prior to startup to
prevent compressor damage.
Fig. 15a Fig. 15b
SRK-20J3
SRK-20J
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.
4A5700-010
208-230/60/1
(3 wire with neutral for 115V)
JUNCTION BOX
208-230
V
BLACK
BROWN
L1
L2
WHITE
N
1
15-
120V
BROWN
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.
This unit must be connected to a
three-phase power source.
The transformer’s voltage tap switch
must be positioned to match incoming
voltage at startup.
See diagram below.
208-230/60/3
4A5701-010
JUNCTION BOX
208-230
V
BLACK
L1
L3
RED
L2
208-
230V
208-
230V
24
Fig. 16
Contactor
HGV
LLV
Neutral
Fuse 10A
CB
HGV
LLV
Neutral
SRK Remote Condensing Unit
BR V
P
BK W
BR
GR
GND
V
P
BK
W
BR
V
P
BK
W
GR
BR
V P
BK
W
GND
Legend:
GND-ground
HGV- hot gas valve
CB- control board
LLV- liquid line valve
Wire Color Code:
BK- black
BR- brown
GR-green
P- pink
V- violet
W- white
KMS Icemaker
Fuse 10A
Icemaker-Remote Condensing Unit Wire Bundle Connections
Use wire bundle supplied with the Remote Condensing Unit or fabricate
a wire bundle using wire of an appropriate gage and outdoor rating.
25
G. Water Supply and Drain Connections
See Fig. 17
WARNING
Water supply and drain connections must be installed in accordance with applicable
national, state, and local regulations.
NOTICE
• 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.
• 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 lters, 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
ow. A vented tee connection is also required for proper ow.
• 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 oor drain.
26
1. Icemaker
• Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of
3/8" nominalID 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.
Fig. 17
KMS-2000MLJ
Icemaker Water
Supply Inlet
1/2" FPT
Icemaker Water Supply
Line Shut-Off Valve
Icemaker Water Supply
Line Drain Valve
Icemaker Drain
Outlet 3/4" FPT
Icemaker Condensation
Drain Outlet
5/8" OD Hard Pipe
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.
2-inch (5-cm)
air gap
Floor
Drain
Storage Bin
Icemaker
Vent Tube
Minimum 3/8" Nominal ID
Copper Water Tubing
Minimum 3/4" Nominal ID Hard Pipe
27
H. Final Checklist
1. Pre-Startup
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 and tank separator in their correct
positions?
6) Have all water tank hoses been reconnected after installing the bin control?
Note: On dispenser unit applications, conrm that there is no gap between the switch
mount and the dispenser unit bin wall. On storage bins, make sure there is no
gap between the switch mount and the bin wall, extension bracket, or brace.
7) Have all required areas been properly sealed with RTV-748 sealant or equivalent?
8) Have all electrical and water connections been made? Do electrical and water
connections meet all national, state, and local code and regulation requirements?
9) 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?
On three phase model, has the transformer's voltage tap switch been positioned to
match incoming voltage? For details, see "II.F. Electrical Connection."
10) Has the electrical power supply been on to the remote condensing unit for a minimum of
4 hours?
11) 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.
12) 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?
13) Is the line set free of leaks and kinks? If needed, has an "S" oil-trap been installed?
14) Are all components, fasteners, and thumbscrews securely in place?
15) Continue to "I. Startup."
28
2. Post-Startup
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/ice storage bin.
1) Has the bin control operation been conrmed?
2) Are all components, fasteners, and thumbscrews securely in place?
3) Has the end user been given the instruction manual, and instructed on how to operate
the appliance and the importance of the recommended periodic maintenance?
4) Has the end user been given the contact information of an authorized service agent?
5) Has the warranty registration been completed and submitted to the factory?
29
I. Startup
WARNING
All parts are factory-adjusted. Improper adjustments may adversely affect safety,
performance, component life, and warranty coverage.
NOTICE
• If the unit is turned off, wait for at least 3 minutes before restarting the unit to
prevent damage to the compressor.
• To prevent damage to the water pump seal, do not leave the control switch in the
"PUMP" position when the water tank is empty.
• At startup, conrm that all internal and external connections are free of leaks.
• The remote condensing unit must have power for a minimum of 4 hours prior to
startup to prevent compressor damage.
1) If removed, replace the splash curtain, front frame, and all panels except the front panel
in their correct positions. See Fig.18. If not already removed, remove the front panel.
Fig. 18
Pump Suction Hose
Drain Pipe
Water Tank Drain Hose
Float Connection Hose
Splash Curtain
Evaporator Case Wall
Water Tank
Front Frame
Bin Control
Insulation Panel
Front Panel
2) Open the water supply line shut-off valve.
3) Move the mode switch on the control box to the "ICE" position, then move the control
switch to the "ON" position.
4) Turn on the power supply, and allow the water tank to ll with water and the icemaker to
operate for a total of 10 minutes.
30
Fig. 19
5) After 10 minutes of operation, conrm bin control operation. Remove the front panel,
then press and hold the bin control's actuator paddle. The compressor and fan motor
should de-energize within 15seconds, then the drain valve should energize until the
water tank empties. After the water tank empties, the pump motor and drain valve
should de-energize.
6) Move the control switch to the "OFF" position, then turn off the power supply.
7) Remove the insulation panel, front frame, and splash curtain.
8) Finish draining the water tank by disconnecting the pump suction hose at the evaporator
case wall.
9) Disconnect the drain pipe and oat connection hose at the evaporator case wall.
Disconnect the water tank drain hose from the bottom of the water tank.
10) Remove the water tank.
11) Clean the dispenser unit/storage bin liner and water tank using a neutral cleaner. Rinse
thoroughly after cleaning.
12) Replace the water tank in the icemaker, then reconnect the hoses and drain pipe.
13) Replace the splash curtain, front frame, and insulation panel in their correct positions
and secure with the thumbscrews.
14) Seal the outer perimeter of the front frame to the icemaker and dispenser unit/storage
bin with RTV-748 sealant (provided) or equivalent. See Fig. 19. Make sure the front
frame sealant meets the previously applied perimeter sealant and that there are no
gaps.
Front Frame
Seal the Front Frame Outer Perimeter with RTV-748 Sealant
or Equivalent. Make sure the front frame sealant meets the
previously applied perimeter sealant and that there are no gaps.
15) Move the control switch to the "ON" position.
16) Replace the front panel in its correct position.
17) Turn on the power supply to start the automatic icemaking process.
18) Return to "II.H.2. Post-Startup" and complete nal checklist.
31
III. Maintenance
The appliance must be maintained in accordance with the instruction manual and labels
provided. Consult with your local Hoshizaki Certied Service Representative about
maintenance service.
WARNING
• Only qualied service technicians should service the appliance.
• To reduce the risk of electric shock, do not touch the control switch or mode switch
with damp hands.
• Move the control switch to the "OFF" position and turn off the power supply before
servicing. Lockout/Tagout to prevent the power supply from being turned back on
inadvertently.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after any maintenance is done to the appliance. Make sure that
none have fallen into the dispenser unit/ice storage bin.
A. Maintenance Schedule
The maintenance schedule below is a guideline. More frequent maintenance may be
required depending on water quality, the appliance's environment, and local sanitation
regulations.
Maintenance Schedule
Frequency Area Task
Daily Scoop Clean the ice scoop using a neutral cleaner. Rinse thoroughly after cleaning.
Monthly External Water
Filters
Check for proper pressure and change if necessary.
Icemaker Exterior Wipe down with a clean, soft cloth. Use a damp cloth containing a neutral
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust
colored spots) using a non-abrasive cleanser.
Underside of
Icemaker and Top
Kits; Bin Door and
Snout
Wipe down with a clean, soft cloth. Use a damp cloth containing a neutral
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust
colored spots) using a non-abrasive cleanser.
Yearly Icemaker and
Dispenser Unit/Ice
Storage Bin
Clean and sanitize per the cleaning and sanitizing instructions provided in
this manual. See "III.B. Cleaning and Sanitizing Instructions."
Water Supply Inlet Close the icemaker water supply line shut-off valve and drain the water
system. Clean the water supply inlet screen.
Condenser Inspect. Clean if necessary by using a brush or vacuum cleaner. More
frequent cleaning may be required depending on location.
Water Hoses Inspect the water hoses and clean/replace if necessary.
32
Splash Curtain
Float Switch
Insulation Panel
Front Panel
Fig. 20
B. Cleaning and Sanitizing Instructions
The icemaker must be cleaned and sanitized at least once a year.
More frequent cleaning and sanitizing may be required in some water conditions.
WARNING
• To prevent injury to individuals and damage to the icemaker, do not use ammonia
type cleaners.
• Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
• Always wear liquid-proof gloves and goggles to prevent the cleaning and sanitizing
solutions from coming into contact with skin or eyes.
• Do not leave the icemaker unattended when panels are off.
NOTICE
• To prevent damage to the water pump, do not leave the control switch in the
"PUMP" position for extended periods when the water tank is empty.
• Terminating a cleaning/sanitizing cycle early:
a) Terminating a cleaning cycle at step 4 or earlier in "Cleaning" below, returns
the icemaker to the normal icemaking mode. The control board "CLEAN" LED
turns off.
b) Terminating a cleaning cycle at step 5 or later in "Cleaning" below, sends the
icemaker into a 3-rinse cycle (approx. 18 min.). The control board "CLEAN"
LED remains on throughout the 3-rinse cycles. After the 3rd rinse cycle,
icemaker goes into the normal icemaking mode and the control board "CLEAN"
LED turns off.
33
Preparation
1) Remove the front panel, then move the control switch to the "OFF" position. Make sure
the mode switch is in the "ICE" position. After 3 minutes, move the control switch to the
"ON" position and replace the front panel.
2) Allow the appliance to run until the compressor energizes. Once the compressor
energizes, allow the appliance to run for an additional 3 minutes, then remove the front
panel. Move the control switch to the "OFF" position.
3) Remove all ice from the dispenser unit/ice storage bin. WARNING! If on a dispenser
unit, turn off the dispenser unit power supply after dispensing the ice.
Cleaning
4) Move the mode switch to the "CLEAN" position, then move the control switch to the
"ON" position (1 short beep occurs, then 3 seconds later 1 long beep occurs). Replace
the front panel. The water tank drains and then lls.
5) When the control board starts beeping (2 beep sequence), remove the front panel.
Move the control switch to the "OFF" position.
6) Remove the front insulation panel and splash curtain, then pour 27 . oz. (800 ml)
of Hoshizaki "Scale Away" into the water tank. Replace the splash curtain and front
insulation panel.
7) Move the control switch to the "ON" position (1 short beep occurs, then 3 seconds later
1 long beep occurs). Replace the front panel. To avoid excessive foaming in the water
tank, there is a 1 minute delay before circulation begins. After approximately 30 minutes
of circulation, the icemaker performs 3 rinse cycles.
8) When the control board starts beeping (5 beep sequence), remove the front panel.
Move the control switch to the "OFF" position.
9) In bad or severe water conditions, turn off the power supply, then remove, clean
(cleaning solution = 5 oz. Hoshizaki "Scale Away" per gallon of warm water), rinse, and
replace the cube guide, oat switch, water supply tubes, spray tubes, and spray guides;
turn on the power supply when complete. Otherwise, continue to step 10.
Sanitizing
10) Conrm the mode switch is in the "CLEAN" position, then move the control switch to the
"ON" position (1 short beep occurs, then 3 seconds later 1 long beep occurs).
Replace the front panel. The water tank drains and then lls.
11) When the control board starts beeping (2 beep sequence), remove the front panel.
Move the control switch to the "OFF" position.
12) Remove the front insulation panel and splash curtain, then pour 2.73 . oz. (81 ml or
5.5 tbs) of a 7.5% sodium hypochlorite solution (chlorine bleach) into the water tank.
Replace the splash curtain and front insulation panel. IMPORTANT! Use regular
bleach with no additives. Using a bleach with additives causes excessive foaming
during sanitizing, reducing the effectiveness of sanitizing.
13) Move the control switch to the "ON" position (1 short beep occurs, then 3 seconds later
1 long beep occurs). Replace the front panel. To avoid excessive foaming in the water
tank, there is a 1 minute delay before circulation begins. After approximately 30 minutes
of circulation, the icemaker performs 3 rinse cycles.
34
14) When the control board starts beeping (5 beep sequence), remove the front panel.
Move the control switch to the "OFF" position.
15) Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly
after cleaning.
16) Move the mode switch to the "ICE" position, then move the control switch to the "ON"
position. Note: If on a dispenser unit, turn on the dispenser unit power supply.
17) Replace all panels in their correct positions.
35
C. Preparing the Icemaker for Periods of Non-Use
NOTICE
• When storing the icemaker for an extended time or in sub-freezing temperatures,
follow the instructions below to prevent damage.
• To prevent damage to the water pump, do not leave the control switch in the
"PUMP" position for extended periods 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) Remove the front panel. Move the control switch to the "OFF" position, then turn off the
power supply.
2) Close the icemaker water supply line shut-off valve and open the icemaker water supply
line drain valve.
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) Conrm the mode switch is in the "ICE" position, then move the control switch to the
"ON" position.
6) Replace the front panel in its correct position, then turn on the power supply.
7) Blow the icemaker water supply line out using the compressed air or carbon dioxide
supply.
8) Move the control switch to the "OFF" position.
9) Close the icemaker water supply line drain valve.
10) Disconnect the outlet cleaning valve hose from the cleaning valve and the inlet water
valve tee and the and empty any water from the hose. See Fig. 21. Replace and secure
the outlet cleaning valve hose in its correct position. Next, remove the inlet cleaning
valve hose. See Fig. 21.
11) Blow out the inlet cleaning valve hose using the compressed air or carbon dioxide
supply. Reconnect the inlet cleaning valve hose.
Inlet Water Valve Tee
Inlet Water Valve
Cleaning Valve
Fig. 21
Outlet Cleaning Valve Hose
Front View
Inlet Cleaning Valve Hose
36
Pump Suction Hose
Fig. 22
Float Connection Hose
Water Tank Drain Hose
Drain Pipe
Water Tank
Bottom View
2. Remove the water from the water tank:
12) Remove the insulation panel and front frame.
13) Disconnect the drain pipe, oat connection hose, pump suction hose, and water
tank drain hose from the water tank. See Fig. 22. Allow the tank and hoses to drain
completely.
14) Reconnect the hoses to the water tank.
15) Replace all removed parts and panels in their correct positions.
16) Remove all ice from the dispenser unit/ice storage bin. WARNING! If on a dispenser
unit, turn off the dispenser unit power supply after dispensing the ice.
3. Restart Instructions
1) Open the icemaker water supply line shut-off valve.
2) Follow the steps in "III.B. Cleaning and Sanitizing Instructions" prior to restarting the
icemaker.
Front Frame
Insulation Panel
37
V. Disposal
The appliance contains refrigerant and must be disposed of in accordance with
applicable national, state, and local codes and regulations. Refrigerant must be
recovered by properly certied service personnel.
38
618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A7879-010
