Hoshizaki KMS822MLJ User Manual

Instruction Manual

Modular Crescent Cuber
Serenity Series

Models
KMS-822MLJ

Including
Condensing Unit Models
SRK-10J

hoshizakiamerica.com

Issued: 4-9-2018
Revised: 7-16-2018

WARNING

Only qualied service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizaki.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 appliance until the
installer has instructed them on its proper operation. Failure to install, operate, and
maintain the appliance 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 qualied service technicians in the
installation, maintenance, and service of the appliance.

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: [phone]
Fax: [phone]

E-mail: [e-mail]

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.

2

IMPORTANT

This manual should be read carefully before the appliance is installed and operated.
Read the warnings and guidelines contained in this manual carefully as they
provide essential information for the continued safe use and maintenance of the
appliance. Retain this manual for any further reference that may be necessary.

CONTENTS

Important Safety Information ................................................................................................. 4

I. Specications ...................................................................................................................... 6

A. Electrical and Refrigerant Data ..................................................................................... 6

1. KMS-822MLJ ........................................................................................................... 6

2. SRK-10J .................................................................................................................. 6

B. Dimensions/Connections .............................................................................................. 7

1. KMS-822MLJ ........................................................................................................... 7

2. SRK-10J .................................................................................................................. 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. Setup ........................................................................................................................... 13

1. Dispenser Unit/Ice Storage Bin and Icemaker Setup ............................................. 13

2. Bin Control Installation ........................................................................................... 14

E. Installation of the Remote Condensing Unit ................................................................ 15

1. Setup ...................................................................................................................... 15

2. Line Set ................................................................................................................. 15

3. Line Set Installation ............................................................................................... 16

F. Electrical Connection ................................................................................................... 18

G. Water Supply and Drain Connections ......................................................................... 21

H. Final Checklist ............................................................................................................. 23

I. Startup .......................................................................................................................... 24

III. Maintenance ................................................................................................................... 25

A. Maintenance Schedule ................................................................................................ 25

B. Cleaning and Sanitizing Instructions ........................................................................... 26

IV. Preparing the Icemaker for Periods of Non-Use ............................................................. 30

V. Disposal ........................................................................................................................... 31

3

Important Safety Information

Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, damage to the appliance, 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

appliance or property.

IMPORTANT Indicates important information about the installation, use, and

care of the appliance.

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 appliance 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 qualied service technicians should install and service the appliance.

• The 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 with damp
hands.

• 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
(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 appliance. 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.

• Children should be properly supervised around this appliance.

• Do not climb, stand, or hang on the appliance or allow children or animals to do so.
Serious injury could occur or the appliance could be damaged.

• Do not use combustible spray or place volatile or ammable substances near the
appliance. They might catch re.

• Keep the area around the appliance clean. Dirt, dust, or insects in the appliance
could cause harm to individuals or damage to the appliance.

4

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 specications. 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 icemaker 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 icemaker on during extended periods of non-use, extended
absences, or in sub-freezing temperatures. To properly prepare the icemaker for
these occasions, follow the instructions in "IV. 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.

5

I. Specications

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.
Forcertication marks, see the nameplate.
We reserve the right to make changes in specications and design without prior notice.

1. KMS-822MLJ

Model Number KMS-822MLJ

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

2. SRK-10J

404A
Total Refrigerant Charge
with Hoshizaki Remote
Condensing Unit
SRK-10J: 14 LB. 1.75 OZ.

Model Number SRK-10J

AC Supply Voltage 208-230/60/1 (3 wire with neutral)

Compressor 230V 7.7RLA 56.0LRA
Fan Motor 115V 2.6FLA (total) 126W
Other 115V 0.4A
Maximum Fuse Size 20 AMPS
Max. HACR Breaker
(USA Only)
Max. Circ. Breaker
(Canada Only)
Minimum Circuit
Ampacity
Design Pressure HI-467PSI LO-230PSI
Refrigerant 404A

20 AMPS

20 AMPS

20 AMPS

Total Refrigerant Charge with
Hoshizaki Icemaker
KMS-822MLJ: 14 LB. 1.75 OZ.

6

565
[ 22 - 1/4 ]

559

71
[ 2 - 3/4 ]

123
[ 4 - 7/8 ]

55
[ 2 - 1/8 ]

66
[ 2 - 5/8 ]

130
[ 5 - 1/8 ]

36
[ 1 - 3/8 ]

LIQUID LINE
1/2” FIELD CONNECTION

ICEMAKER WATER
INLET 1/2” FPT

491

[ 19 - 3/8 ]

655

[ 25 - 3/4 ]

119

[ 4 - 5/8 ]

14

[ 9/16 ]

SUCTION LINE
5/8” FIELD CONNECTION

WIRE HARNESS
CONNECTION
7/8” DIA. OPENING

ICEMAKER DRAIN
OUTLET 3/4” FPT

MOUNTING HOLES

28

[ 1 - 1/8 ]

B. Dimensions/Connections

565
[ 22 - 1/4 ]

559
[ 22 ]

71
[ 2 - 3/4 ]

123
[ 4 - 7/8 ]

55
[ 2 - 1/8 ]

66
[ 2 - 5/8 ]

130
[ 5 - 1/8 ]

36
[ 1 - 3/8 ]

LIQUID LINE
1/2” FIELD CONNECTION

ICEMAKER WATER
INLET 1/2” FPT

491

[ 19 - 3/8 ]

655

[ 25 - 3/4 ]

119

[ 4 - 5/8 ]

14

[ 9/16 ]

SUCTION LINE
5/8” FIELD CONNECTION

WIRE HARNESS
CONNECTION
7/8” DIA. OPENING

ICEMAKER DRAIN
OUTLET 3/4” FPT

MOUNTING HOLES

28

[ 1 - 1/8 ]

1. KMS-822MLJ

625
[ 24 - 5/8 ]

715

Unit: mm [in.]

[ 28 - 1/8 ]

53

[ 2 - 1/8 ]

597
[ 23 - 1/2 ]

CONDENSATION
DRAIN OUTLET
5/8” O. D. HARD TUBE

30
[ 1 - 1/8 ]

71
[ 2 - 3/4 ]

ICEMAKER WATER
INLET 1/2” FPT

655

[ 25 - 3/4 ]

491

[ 19 - 3/8 ]

119

55
[ 2 - 1/8 ]

[ 4 - 5/8 ]

RearSide

565

[ 22 - 1/4 ]
123
[ 4 - 7/8 ]

MOUNTING HOLES

66
[ 2 - 5/8 ]

559
[ 22 ]

Bottom

LIQUID LINE
1/2” FIELD CONNECTION

SUCTION LINE
5/8” FIELD CONNECTION

WIRE HARNESS
CONNECTION
7/8” DIA. OPENING

ICEMAKER DRAIN
OUTLET 3/4” FPT

14

[ 9/16 ]

36

[ 1 - 3/8 ]
130
[ 5 - 1/8 ]

28

[ 1 - 1/8 ]

NOTICE

• 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.

• The ice storage bin opening must
match the bottom opening as in the
illustration.

ICE DROP ZONE
AND DRIP OPENING

345
[ 13 - 5/8 ]

147
[ 5 - 3/4 ]

25.4

[ 1 ]

505

[ 19 - 7/8 ]

7

2. SRK-10J

Unit: mm [in.]

Note: Legs are included with remote condensing unit.

Leg height is 380 mm (14.96 in.).

Heat of Rejection

AT 90°F (32°C)

Model

KMS-822MLJ with SRK-10J 14,700 BTU/hr

WT 70°F (21°C)

8

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 appliance 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/ice 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 "IV. 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, sides, and top 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.

9

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 performance.

• The maximum line set length is 66' (20 m). No refrigerant charge adjustment is
necessary.

• The maximum vertical distance between the remote condensing unit and icemaker
is 33' (10 m) above or 10' (3 m) 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' (6 m) (not to exceed 33' (10 m)), 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.

Icemaker

Ice Storage
Bin

Remote
Condensing Unit
(with compressor)

Suction Line
"S" Oil-Trap

Icemaker

Ice Storage
Bin

Max.

16.5
Feet

Max.

16.5
Feet

Max.
33
Feet

Service Loop

Remote
Condensing Unit
(with compressor)

Max.
10
Feet

Min. 24" (61 cm) Clearance

24"

(61 cm)

Air

(61 cm)

Fig. 2

24"

Air

Service Loop

Fig. 1

10

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 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 ice storage bin 22" wide or wider.
Foroptions, contact your local Hoshizaki distributor.

• NOTICE! This icemaker is designed for connection to Hoshizaki Remote

Condensing Unit Model SRK-10J only! Connection to another remote condensing
unit will void the warranty.

2. Remote Condensing Unit

• See the nameplate on the remote condensing unit. Check that your voltage supplied
corresponds with the voltage specied 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.

11

C. How to Remove Panels

1. Icemaker

• Front Panel: Loosen the screw. Lift up and towards you.

• Control Box Cover: Remove the screws and pull towards you.

• Top Panel: Lift off.

• Top Insulation and Top Cover: Lift off.

• Right Side Panel: Remove the screw. Slide forward slightly and lift off.

• Insulation Panel: Remove the thumbscrew. Lift up slightly and pull towards you.

Top Panel

Top Insulation

Top Cover

Control Box Cover

Insulation Panel

Right Side Panel

Front Panel

Icemaker

2. Remote Condensing Unit

• Top Panel: Remove the screws and lift off.

• Side Panels: Remove the screws and lift off.

• Louver Panel: Remove the screws and lift off.

• Front Frame: Remove the screws and lift off.

• Control Box Cover: Remove the screws and lift off.

Top Panel

Left Side Panel

Fig. 3

Right Side Panel

Louver Panel

Front Frame

Remote Condensing Unit

Control Box
Cover

Fig. 4

12

D. Setup

1. Dispenser Unit/Ice Storage Bin and Icemaker Setup

WARNING

The installer must ensure the dispenser unit/ice storage bin is compatible with
the icemaker, and the dispenser unit/ice storage bin and icemaker are properly
attached and secured.

NOTICE

• 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. 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.

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 an ice storage bin, unpack the ice storage
bin and attach the 4 adjustable legs provided (bin accessory) to the bottom of the ice
storage bin.

2) Position the dispenser unit/ice storage bin in its permanent location.

3) If required, install an adapter kit or top kit. Contact your local Hoshizaki distributor for
recommendations.

4) Level the dispenser unit/ice storage bin in both the
left-to-right and front-to-rear directions. Ifusing an
ice storage bin, adjust the ice storage bin legs to

Icemaker

level.

5) Place the icemaker on top of the dispenser unit/
ice storage bin.

6) Secure the icemaker to the dispenser unit/ice
storage bin using the standard mounting brackets
and the machine bolts provided. See Fig.5.

Ice Storage
Bin

Mounting
Brackets

Bolts

13

Fig. 5

2. Bin Control Installation

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
icemaker damage.

Follow the instructions below for bin control assembly installation.

1) If not already removed, remove the front panel, top, and right side panels.

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 bin control insulation and bin control cover.

4) Remove bin control from the bin control cover.

5) 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.

6) Using 2 existing thumbscrews, attach the bin control extension bracket to the bin control
cover.

7) 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.

8) Replace the bin control insulation in its proper position.

9) Secure the control box in its proper position.

Bin Control

Bin Control
Insulation

Bin Control
Cover

Bin
Control

Base

Base

Bin
Control
Cover

Insulation

Slot

Notch

Fig. 6

Bin Control Extension Bracket
and 2 Thumbscrews from
Accessory Bag

Control Box

Bin Control

Fig. 7

14

E. Installation of the Remote Condensing Unit

WARNING

• Installation must be performed by properly trained and EPA-certied 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 8 bolts and nuts provided.
See Fig. 8.

2) The legs have 8 mounting holes. Secure

Bolt with
Split Lock
Washer and
Flat Washer

the legs with 8 bolts (not included).

Nut

Fig. 8

2. Line Set

NOTICE

• The icemaker, line set, and remote condensing unit must contain the same type
of refrigerant. Mixing of refrigerants will result in improper operation and possible
damage to the refrigeration system.

• The maximum line set length is 66' (20 m). No refrigerant charge adjustment is
necessary.

• The maximum vertical distance between the remote condensing unit and icemaker
is 33' (10 m) above or 10' (3 m) below the icemaker. These distances are measured
tting to tting. See Fig. 9. NOTICE! Do not exceed maximum vertical distance.

• If the vertical distance between the remote condensing unit and the icemaker
is greater than 20' (6 m) (not to exceed 33' (10 m)), 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.

Line Set Size and Length for SRK-10J Remote Condensing Unit
Hoshizaki
Icemaker

KMS-822MLJ 1/2" OD 5/8" OD

Liquid

Line

Suction

Line

Factory Line

Set Lengths Maximum Line Set Length

25' (7.6 m), 35' (10.7 m),

and 55' (16.8 m)

66' (20 m)

15

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 hydrouoric
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 factory line set or appropriate size copper tubing. When eld fabricating,
insulate the copper tubes separately. Leave a service loop behind the icemaker to
allow the icemaker to be pulled out for service. See Fig. 9. Note: The service loop is not
considered an oil trap.

2) Remove any extra line set length.

3) 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.

4) Braze the line set to the icemaker service valves rst, 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 service valve access port caps and tighten.

11) Open the icemaker service valves rst, then open the remote condensing unit service
valves.

16

12) Replace the service valve caps and tighten.

13) Insulate all exposed tubing and ttings.
Hoshizaki Technical Support is available at 1-800-233-1940 for recommendations.

Line Set Connections

Icemaker

Remote
Condensing Unit
(with compressor)

Suction Line
"S" Oil-Trap

1/2" OD
Liquid Line
(insulated)

Max.

16.5
Feet

Max.
33
Feet

Max.

16.5
Feet

Ice
Storage
Bin

Service Loop

Max.
10
Feet

Ice
Storage
Bin

Icemaker

5/8" OD Suction Line
(insulated)

Service Loop

5/8" OD Suction Line
(insulated)

1/2" OD
Liquid Line
(insulated)

Remote
Condensing Unit
(with compressor)

Fig. 9

17

F. Electrical Connection

WARNING

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. 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 specications. 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 Fig. 10.

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.

18

1) Route the wire bundle between the icemaker and remote condensing unit. Use the wire

208-230

V

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. 11 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 Fig. 11.

• The white lead must be connected to the neutral conductor of the power source.

NOTICE! Miswiring may result in severe damage to the icemaker.

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 4hours prior to startup to
prevent compressor damage.

SRK-10J

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)

JUNCTION BOX

L1

BLACK

15­1

120V

N

WHITE

L2

BROWN

4A5700-010

Fig. 10

19

Fig. 11

W

W

BK

P BK

V

V P

BR

Neutral

LLV

HGV

CB

KMS Icemaker

GR

BR

Fuse 10A

GND

GND

Wire Color Code:

Legend:

BK- black

BR- brown

GND-ground

HGV- hot gas valve

GR-green

P- pink

CB- control board

LLV- liquid line valve

V- violet

W- white

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.

GR

W

SRK Remote Condensing Unit

BK

P

V

BR

20

Neutral

BK W

LLV

P

HGV

Contactor

BR V

Fuse 10A

G. Water Supply and Drain Connections
See Fig. 12

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 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 must be a minimum of 10 PSIG and a maximum of 113 PSIG. If the
pressure exceeds 113 PSIG, the use of a pressure reducing valve is required.

• The icemaker drain line and dispenser unit/ice 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
and dispenser unit/ice storage bin and the oor drain. See Fig. 12.

21

1. Icemaker

Icemaker Water
Supply Inlet

1/2" Female Pipe
Thread (FPT)

Minimum Icemaker
Water Supply Line Size

1/4" Nominal ID
Copper Water Tubing or
Equivalent

Icemaker Drain
Outlet

3/4" Female Pipe
Thread (FPT)

Minimum Icemaker
Drain Line Size

3/4" Nominal
ID Hard Pipe or
Equivalent

• An icemaker water supply line shut-off valve and drain valve must be installed.

• Be sure there is sufficient extra water supply line and drain line for the appliance to be
pulled out for service.

Minimum 1/4" Nominal ID Copper Water Tubing

Icemaker Water
Supply Inlet
1/2" FPT

Icemaker Drain
Outlet 3/4" FPT

Icemaker

Icemaker Water Supply
Line Shut-Off Valve

Icemaker Water Supply
Line Drain Valve

Vent Tube

Icemaker Condensation
Drain Outlet
5/8" OD Hard Tube

Ice Storage
Bin

Vent Tube

Minimum 3/4" Nominal ID Hard Pipe

Fig. 12

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

22

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/ice 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 the remote condensing unit in a site where the ambient temperature is within -20°F to
122°F (-29°C to 50°C) all year around?

5) Is there at least 24" (61 cm) clearance around the remote condensing unit for proper air
circulation and ease of maintenance and service?

6) 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?

7) Has the bin control assembly been properly installed?

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?
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 and drain lines sized as specied? 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?

12) Is the compressor snug on all mounting pads? Have the refrigerant lines been checked
to make sure they do not rub or touch other lines or surfaces? Has the fan blade been
checked to make sure it turns freely?

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) 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?

16) Has the end user been given the name and telephone number of an authorized service
agent?

17) Has the warranty card been lled out and forwarded to the factory for warranty
registration?

23

I. Startup

WARNING

All parts are factory-adjusted. Improper adjustments may adversely affect safety,
performance, component life, and warranty coverage.

NOTICE

• If the appliance is turned off, wait for at least 3 minutes before restarting the
appliance to prevent damage to the compressor.

• To prevent damage to the water pump, do not leave the control switch in the
"WASH" position when the water tank is empty.

• At startup, conrm 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) 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. 13. Remove the overow cap, overow 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, overow pipe, overow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overow
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

Overow Cap

automatic icemaking process.

12) To conrm bin control operation, press

Overow Pipe

and hold the bin control's actuator paddle
during the rst 5 minutes of the freeze
cycle. The icemaker should shut down in
approximately 15 seconds.

13) Replace the front panel in its correct
position.

Fig. 13

Cube Guide A

Drain
Plug

Cube Guide B

Water
Shield

24

III. Maintenance

The appliance must be maintained in accordance with the instruction manual and labels
provided. Consult with your local Hoshizaki Certied Service Representative about
maintenance service.

WARNING

• Only qualied service technicians should service the appliance.

• To reduce the risk of electric shock, do not touch the control 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

Icemaker Exterior Wipe down with a clean, soft cloth. Use a damp cloth containing a neutral

Underside of
Icemaker and Top
Kits; Bin Door and
Snout

Yearly Icemaker and

Dispenser Unit/Ice
Storage Bin

Water Supply Inlet Close the icemaker water supply line shut-off valve and drain the water

Condenser Inspect. Clean if necessary by using a brush or vacuum cleaner. More

Water Hoses Inspect the water hoses and clean/replace if necessary.

Check for proper pressure and change if necessary.

cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust
colored spots) using a non-abrasive cleanser.

Wipe down with a clean cloth and warmwater.

Clean and sanitize per the cleaning and sanitizing instructions provided in
this manual. See "III.B. Cleaning and Sanitizing Instructions."

system. Clean the water supply inlet screen.

frequent cleaning may be required depending on location.

25

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 seal, do not leave the control switch in the
"WASH" position for extended periods when the water tank is empty.

IMPORTANT

• The cleaning valve is opened during cleaning and sanitizing to allow solution ow
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.

• 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

Icemaking Operation

Cleaning and Sanitizing Operation

(allows solution ow to the inside of the evaporator)

OPEN

Preparation

1) Remove the front panel, then move the control switch to the "OFF" position. After 3 min.,
move the control switch to the "ICE" position, then replace the front panel.

2) After 3 min., remove the front panel, then 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.

26

Cleaning

Overow Cap

4) Remove the front insulation panel, then remove
cube guide B and cube guide A.
See Fig. 14. Remove the overow cap, overow

Overow Pipe

pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water
shield, overow pipe, overow cap, cube guide A,
cube guide B, and front insulation panel.

Cube Guide A

NOTICE! Be careful not to cross thread the
drain plug and overow pipe.

5) To ll the water tank, move the control
switch to the "ICE" position, then replace
the front panel. After 3 min., remove the
front panel, then move the control switch to

Cube Guide B

Drain
Plug

Fig. 14

the "OFF" position.

6) Remove the front insulation panel, then pour 14 . oz. (414 ml) of Hoshizaki "Scale
Away" into the water tank. Replace the front insulation panel. Turn the cleaning valve to
the left until completely vertical (open).

7) NOTICE! To avoid excessive foaming, wait 1min. before proceeding.
After 1 min., move the control switch to the "WASH" position, then replace the front
panel.

Water
Shield

8) After 30 min., remove the front panel, then move the control switch to the "OFF"
position.

9) Remove the front insulation panel, then remove cube guide B and cube guide A.
Remove the overow cap, overow pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water shield, overow pipe, overow cap, cube
guide A, cube guide B, and front insulation panel.

10) 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 guides, oat switch, water supply tubes, spray tubes, and spray
guides; turn on the power supply when complete. Otherwise, continue to step 11.

Cleaning Rinse

11) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position, then replace the front panel. After 3 min., remove the front
panel, then move the control switch to the "OFF" position. Note: The icemaker will not
operate unless the cleaning valve is completely closed.

12) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove the
front panel, then move the control switch to the "OFF" position.

13) Remove the front insulation panel, then remove cube guide B and cube guide A.
Remove the overow cap, overow pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water shield, overow pipe, overow cap, cube
guide A, cube guide B, and front insulation panel.

27

Sanitizing

14) To ll the water tank, turn the cleaning valve to the right until completely horizontal
(closed). Move the control switch to the "ICE" position, then replace the front panel.
After 3 min., remove the front panel, then move the control switch to the "OFF" position.

15) Remove the front insulation panel, then pour .78 . oz. (23 ml) of an 8.25% sodium
hypochlorite solution (chlorine bleach) into the water tank. Replace the front insulation
panel. Turn the cleaning valve to the left until completely vertical (open). IMPORTANT!

Use regular bleach with no additives. Using a bleach with additives causes
excessive foaming during sanitizing, reducing the effectiveness of sanitizing.

16) NOTICE! To avoid excessive foaming, wait 1min. before proceeding.
After 1 min., move the control switch to the "WASH" position, then replace the front
panel.

17) After 45 min., remove the front panel, then move the control switch to the "OFF"
position.

18) Remove the front insulation panel, then remove cube guide B and cube guide A.
Remove the overow cap, overow pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water shield, overow pipe, overow cap, cube
guide A, cube guide B, and front insulation panel.

Sanitizing Rinse 1

19) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position, then replace the front panel. After 3 min., remove the front
panel, then move the control switch to the "OFF" position.

20) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove the
front panel, then move the control switch to the "OFF" position.

21) Remove the front insulation panel, then remove cube guide B and cube guide A.
Remove the overow cap, overow pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water shield, overow pipe, overow cap, cube
guide A, cube guide B, and front insulation panel.

Sanitizing Rinse 2

22) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position, then replace the front panel. After 3 min., remove the front
panel, then move the control switch to the "OFF" position.

23) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove the
front panel, then move the control switch to the "OFF" position.

24) Remove the front insulation panel, then remove cube guide B and cube guide A.
Remove the overow cap, overow pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water shield, overow pipe, overow cap, cube
guide A, cube guide B, and front insulation panel.

28

Sanitizing Rinse 3

25) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position, then replace the front panel. After 3 min., remove the front
panel, then move the control switch to the "OFF" position.

26) Turn the cleaning valve to the left until completely vertical (open). Move the control
switch to the "WASH" position, then replace the front panel. After 5 min., remove the
front panel, then move the control switch to the "OFF" position.

27) Remove the front insulation panel, then remove cube guide B and cube guide A.
Remove the overow cap, overow pipe, water shield, and drain plug. After the water
tank has drained, replace the drain plug, water shield, overow pipe, overow cap, cube
guide A, cube guide B, and front insulation panel.

28) Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly
after cleaning.

29) Turn the cleaning valve to the right until completely horizontal (closed). Move the control
switch to the "ICE" position. Note: If on a dispenser unit, turn on the dispenser unit
power supply.

30) Replace all panels in their correct positions.

29

IV. 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 seal, do not leave the control switch in the
"WASH" 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) 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.

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. 14. Remove the overow cap, overow 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, overow pipe, overow cap, cube guide A, cube guide B, and
insulation panel in their correct positions. Be careful not to cross thread the overow
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.

30

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 certied service personnel.

31

618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A5046-011

32