Hoshizaki MRH, MWH KML-351MAH, MWH KML-631MAH, KML-250MAH, MWH User Manual
...
Hoshizaki America, Inc.
Hoshizaki
Low-Profile Modular Crescent Cuber
Models
KML-250MAH, MWH
“A Superior Degree
of Reliability”
www.hoshizaki.com
KML-351MAH, MWH
KML-451MAH, MWH
KML-631MAH, MWH, MRH
INSTRUCTION MANUAL
Issued: 8-19-2013
WARNING
Only qualied service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certied 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 qualied 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: 1-800-233-1940; (770) 487-2331
Fax: 1-800-843-1056; (770) 487-3360
E-mail: techsupport@hoshizaki.com
HOSHIZAKI AMERICA, INC.
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. Specications ...................................................................................................................... 6
A. Electrical and Refrigerant Data ..................................................................................... 6
1. KML-250M_H ........................................................................................................... 6
2. KML-351M_H ........................................................................................................... 6
3. KML-451M_H ........................................................................................................... 7
4. KML-631M_H ........................................................................................................... 7
B. Dimensions/Connections .............................................................................................. 8
1. Air-Cooled Models (MAH) ......................................................................................... 8
2. Water-Cooled Models (MWH) .................................................................................. 9
3. Remote Models (MRH) .......................................................................................... 10
4. Remote Condenser Unit URC-9F (use with KML-631MRH) ...................................11
II. Installation and Operating Instructions ............................................................................ 12
A. Location ...................................................................................................................... 12
B. Checks Before Installation ........................................................................................... 12
C. How to Remove Panels ............................................................................................... 13
D. Setup ........................................................................................................................... 14
E. Electrical Connection .................................................................................................. 16
F. Water Supply and Drain Connections .......................................................................... 18
1. Icemaker ................................................................................................................ 19
2. Water-Cooled Condenser....................................................................................... 20
a) KML-250/351/451MWH ...................................................................................... 20
b) KML-631MWH .................................................................................................... 22
G. Installation of Remote Condenser Unit ....................................................................... 24
1. Location ................................................................................................................. 24
2. Checks Before Installation ..................................................................................... 25
3. Setup ..................................................................................................................... 25
4. Line Set Size and Refrigerant Charge ................................................................... 25
5. Line Set Installation ............................................................................................... 26
6. Electrical Connection ............................................................................................. 29
7. Stacking Remote Condenser Unit .......................................................................... 30
H. Final Checklist ............................................................................................................. 31
I. Startup .......................................................................................................................... 32
III. Maintenance ................................................................................................................... 33
A. Maintenance Schedule ................................................................................................ 33
B. Cleaning and Sanitizing Instructions ........................................................................... 34
1. Cleaning Procedure ................................................................................................ 34
2. Sanitizing Procedure - Following Cleaning Procedure ........................................... 35
IV. Preparing the Icemaker for Periods of Non-Use ............................................................. 37
V. Disposal ........................................................................................................................... 39
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
The 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 qualied service technicians should install and service the appliance.
• The appliance must be installed in accordance with applicable national, state, and
local codes and regulations.
• 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 icemaker 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 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 touch the control switch or service 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.
• Do not make any alterations to the appliance. Alterations could result in electric
shock, serious injury, re, or damage.
• The 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.
4
WARNING, continued
• Children should be properly supervised around the 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.
Additional Warning for Remote Models
• THE REMOTE CONDENSER UNIT MUST BE GROUNDED. The power supply and
ground connection to the remote condenser unit are supplied from the icemaker.
Failure to properly ground the remote condenser unit could result in death or
serious injury.
• Wire 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.
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. Specications
A. Electrical and Refrigerant Data
The rating label and nameplate provide electrical and refrigerant data. The rating label
can be seen by removing the front panel. The nameplate is located on the rear panel. For
certication marks, see the nameplate.
We reserve the right to make changes in specications and design without prior notice.
1. KML-250M_H
Model Number KML-250AH KML-250MWH
AC Supply Voltage 115/60/1 115/60/1
Compressor 115V 7.0RLA 33.6LRA 115V 6.7RLA 33.6LRA
Pump 120V 0.5FLA 23W 120V 0.5FLA 23W
Fan 115V 1.2FLA 25W --- --- --Other 115-120V 0.2A 115-120V 0.2A
Maximum Fuse Size 20 AMPS 20 AMPS
Max. HACR Breaker
(USA Only)
Max. Circuit Breaker
(Canada Only)
Minimum Circuit
Ampacity
Design Pressure HI-467PSI LO-230PSI HI-427PSI LO-230PSI
Refrigerant 404A 1 LB. 2 OZ. 404A 14.1 OZ.
20 AMPS 20 AMPS
20 AMPS 20 AMPS
20 AMPS 20 AMPS
2. KML-351M_H
Model Number KML-351MAH KML-351MWH
AC Supply Voltage 115/60/1 115/60/1
Compressor 115V 6.1RLA 50LRA 115V 6.7RLA 33.6LRA
Pump 120V 0.5FLA 23W 120V 0.5FLA 23W
Fan 115V 0.85FLA 50W --- --- --Other 115-120V 0.2A 115-120V 0.2A
Maximum Fuse Size 20 AMPS 20 AMPS
Max. HACR Breaker
(USA Only)
Max. Circuit Breaker
(Canada Only)
Minimum Circuit
Ampacity
Design Pressure HI-467PSI LO-230PSI HI-427PSI LO-230PSI
Refrigerant 404A 1 LB. 9.4 OZ. 404A 1 LB. 1.6 OZ.
20 AMPS 20 AMPS
20 AMPS 20 AMPS
20 AMPS 20 AMPS
6
3. KML-451M_H
Model Number KML-451MAH KML-451MWH
AC Supply Voltage 115/60/1 115/60/1
Compressor 115-120V 7.9RLA 54.5LRA 115-120V 9.0RLA 70LRA
Pump 120V 0.5FLA 23W 120V 0.5FLA 23W
Fan 120V 0.85FLA 50W --- --- --Other 115-120V 0.15A 115-120V 0.15A
Maximum Fuse Size 20 AMPS 20 AMPS
Max. HACR Breaker
(USA Only)
Max. Circuit Breaker
(Canada Only)
Minimum Circuit
Ampacity
Design Pressure HI-467PSI LO-230PSI HI-427PSI LO-230PSI
Refrigerant 404A 1 LB. 8.7 OZ. 404A 15.2 OZ.
20 AMPS 20 AMPS
20 AMPS 20 AMPS
20 AMPS 20 AMPS
4. KML-631M_H
Model Number KML-631MAH KML-631MWH KML-631MRH
AC Supply Voltage 208-230/60/1 (3 Wire with
Neutral)
Compressor 208-230V 6.9RLA 46LRA 208-230V 6.8RLA 46LRA 208-230V 6.4RLA 46LRA
Pump 120V 0.5FLA 23W 120V 0.5FLA 23W 120V 0.5FLA 23W
Fan 120V 0.85FLA 50W --- --- --- 120V 3A MAX (Fan in URC)
Other 115-120V 0.15A 115-120V 0.15A 115-120V 0.15A
Maximum Fuse Size 20 AMPS 20 AMPS 20 AMPS
Max. HACR Breaker
(USA Only)
Max. Circuit Breaker
(Canada Only)
Minimum Circuit
Ampacity
Design Pressure HI-467PSI LO-230PSI HI-427PSI LO-230PSI HI-467PSI LO-230PSI
Refrigerant 404A 2 LB. 10.3 OZ. 404A 1 LB. 6.0 OZ. 404A
20 AMPS 20 AMPS 20 AMPS
20 AMPS 20 AMPS 20 AMPS
20 AMPS 20 AMPS 20 AMPS
208-230/60/1 (3 Wire with
Neutral)
208-230/60/1 (3 Wire with
Neutral)
Total Refrigerant Charge with
Hoshizaki Remote Condenser
Unit URC-9F: 11 LB. 7.4 OZ.
7
B. Dimensions/Connections
1. Air-Cooled Models (MAH)
Model Shown: KML-451MAH
KML-250MAH
KML-351MAH
KML-451MAH
A 559 [22] 659 [26]
B 515 [20-1/4] 615 [24-1/4]
C 505 [19-7/8] 605 [23-7/8]
Side
KML-631MAH
Units: mm [in.]
Rear
Model Shown: KML-451MAH
Bottom
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.
Model Shown: KML-451MAH
8
2. Water-Cooled Models (MWH)
Model Shown: KML-451MWH
KML-250MWH
KML-351MWH
KML-451MWH
A 559 [22] 659 [26]
B 515 [20-1/4] 615 [24-1/4]
C 505 [19-7/8] 605 [23-7/8]
D 403 [15-7/8] 504 [19-7/8]
E 55 [2-1/8] -
Side
KML-631MWH
Units: mm [in.]
Rear
KML-250/351/451/MWH
Model Shown: KML-451MWH
Rear
KML-631MWH
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.
Model Shown: KML-631MWH
Bottom
Model Shown: KML-451MWH
9
3. Remote Models (MRH)
Units: mm [in.]
Side
Model Shown: KML-631MRH
KML-631MRH
A 659 [26]
B 615 [24-1/4]
C 605 [23-7/8]
D 448 [17-5/8]
E 41 [1-5/8]
F 63 [2-1/2]
G 75 [3]
Rear
Model Shown: KML-631MRH
Bottom
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.
Model Shown: KML-631MRH
10
4. Remote Condenser Unit URC-9F (use with KML-631MRH)
NOTICE
Allow 24" (61cm) clearance at front
and rear for proper air circulation and
ease of maintenance and/or service
should they be required.
URC-9F Heat of Rejection
Icemaker
Model
KML-631MRH 10,300 BTU/hr
AT 90°F (32°C)
WT 70°F (21°C)
Top
Rear
Units: mm [in.]
11
II. Installation and Operating Instructions
WARNING
• The appliance 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
NOTICE
• The 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.
• The 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 should provide a rm and level foundation for the appliance.
B. Checks Before Installation
• Visually inspect the exterior of the shipping container and immediately report any
damage to the carrier. Upon opening the container, any concealed damage should also
be immediately reported to the carrier.
• Remove the shipping carton, tape, and packing material. If any are left in the appliance,
it will not work properly.
• See the nameplate on the rear panel, and check that your voltage supplied corresponds
with the voltage specied on the nameplate.
• Remove the panels to prevent damage when installing the appliance. See "II.C. How to
Remove Panels."
• Remove the package containing the accessories.
• Remove the protective plastic lm from the panels. If the appliance is exposed to the
sun or to heat, remove the lm after the appliance cools.
12
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