Hoshizaki KMD-700MRH User manual

™
INSTRUCTION MANUAL
ISSUED: APRIL 24, 2003
KMD-700MAH
KMD-700MWH
KMD-700MRH
KMD-900MAH
KMD-900MWH
KMD-900MRH
MODULAR CRESCENT CUBER
Reliability is a
beautiful thing
TM
REVISED: JAN. 3, 2008

2
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: HOSHIZAKI Technical Support Department
Phone: [phone] Technical Service
[phone]
Fax: [phone]
NOTE: To expedite assistance, all correspondence/communication MUST include the following
information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem
HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
installation, maintenance and service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call or write to the HOSHIZAKI Technical Support Department for
assistance.
Only qualified service technicians should attempt to install, service or maintain this
icemaker. No installation, service or maintenance should be undertaken until the
technician has thoroughly read this Instruction Manual. Likewise, the owner/manager
should not proceed to operate the icemaker until the installer has instructed them on
its proper operation.
IMPORTANT

3
• Pleasereviewthismanual. It shouldbe readcarefully beforethe icemaker isinstalled and
operated.Onlyqualified servicetechniciansshould install,service and maintainthe
icemaker. This manualshould bemade availableto thetechnician priorto installation,
maintenanceorservice.
• Keepthis manual withthe icemakerfor laterreference.
CONTENTS PAGE
I. SPECIFICATIONS ........................................................................................................ 4
1. NAMEPLATE RATING ............................................................................................... 4
[a] KMD-700MAH (Air-cooled) ................................................................................... 4
[b] KMD-700MWH (Water-cooled) ............................................................................. 5
[c] KMD-700MRH (Remote Air-cooled) ...................................................................... 6
[d] KMD-900MAH (Air-cooled) ................................................................................... 7
[e] KMD-900MWH(Water-cooled) .............................................................................. 8
[f] KMD-900MRH (Remote Air-cooled) ...................................................................... 9
2. DIMENSIONS/CONNECTIONS ............................................................................... 10
[a] KMD-700MAH..................................................................................................... 10
[b] KMD-700MWH, KMD-900MWH .......................................................................... 11
[c] KMD-700MRH, KMD-900MRH ........................................................................... 12
[d] KMD-900MAH..................................................................................................... 13
II. INSTALLATION AND OPERATING INSTRUCTIONS ............................................... 14
1. CHECKS BEFORE INSTALLATION ........................................................................ 14
2. HOW TO REMOVE PANELS ................................................................................... 15
3. LOCATION ............................................................................................................... 15
4. SET UP .................................................................................................................... 16
5. ELECTRICAL CONNECTION .................................................................................. 17
6. INSTALLATION OF REMOTE CONDENSER UNIT................................................. 18
[a] CHECKS BEFORE INSTALLATION ................................................................... 18
[b] LOCATION .......................................................................................................... 18
[c] SET UP ............................................................................................................... 19
[d] ELECTRICAL CONNECTION ............................................................................. 20
[e] STACKING CONDENSER UNIT......................................................................... 21
7. WATER SUPPLY AND DRAIN CONNECTIONS ..................................................... 22
8. FINAL CHECK LIST ................................................................................................. 25
9. START UP ............................................................................................................... 26
10. PREPARING THE ICEMAKER FOR LONG STORAGE ......................................... 28
III. CLEANING AND MAINTENANCE INSTRUCTIONS ................................................ 30
1. CLEANING INSTRUCTIONS ................................................................................... 30
[a] CLEANING PROCEDURE ................................................................................. 30
[b] SANITIZING PROCEDURE ............................................................................... 33
2. MAINTENANCE ....................................................................................................... 34

4
See the Nameplate for electrical and refrigeration specifications.
This Nameplate is located on the upper right hand side of rear panel.
Since this Nameplate is located on the rear panel of the icemaker, it
cannot be read when the back of the icemaker is against a wall or
against another piece of kitchen equipment. Therefore, the neces-
sary electrical and refrigeration information is also on the rating
label, which can be easily seen by removing only the front panel of
the icemaker.
We reserve the right to make changes in specifications and design without prior notice.
I. SPECIFICATIONS
1. NAMEPLATE RATING
[a] KMD-700MAH (Air-cooled)
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 404A
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
KMD-700MAH
208-230/60/1
(3WIREW/NEUTRALFOR115V)
208-230V 10.2RLA 56LRA
120V 0.5FLA 10W
120V 0 .85FLA 50W
115-120V 0.15A
20 AMPS
20 AMPS
20 AMPS
14.25 AMPS
HI-467PSI LO-230PSI
2 lbs. 8.5 oz.

5
[b] KMD-700MWH (Water-cooled)
See the Nameplate for electrical and refrigeration specifications.
This Nameplate is located on the upper right hand side of rear panel.
Since this Nameplate is located on the rear panel of the icemaker, it
cannot be read when the back of the icemaker is against a wall or
against another piece of kitchen equipment. Therefore, the neces-
sary electrical and refrigeration information is also on the rating
label, which can be easily seen by removing only the front panel of
the icemaker.
We reserve the right to make changes in specifications and design without prior notice.
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 404A
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
KMD-700MWH
208-230/60/1
(3WIREW/NEUTRALFOR115V)
208-230V 9.8RLA 56LRA
120V 0.5FLA 10W
--- --- ---
115-120V 0.15A
20 AMPS
20 AMPS
20 AMPS
12.9 AMPS
HI-427PSI LO-230PSI
1 lb. 9.6 oz.

6
[c] KMD-700MRH (Remote Air-cooled)
See the Nameplate for electrical and refrigeration specifications.
This Nameplate is located on the upper right hand side of rear panel.
Since this Nameplate is located on the rear panel of the icemaker, it
cannot be read when the back of the icemaker is against a wall or
against another piece of kitchen equipment. Therefore, the neces-
sary electrical and refrigeration information is also on the rating la-
bel, which can be easily seen by removing only the front panel of
the icemaker.
We reserve the right to make changes in specifications and design without prior notice.
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 404A
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
KMD-700MRH
208-230/60/1
(3WIREW/NEUTRALFOR115V)
208-230V 10.0RLA 56LRA
120V 0.5FLA 10W
REMOTE 3A MAX
115-120V 0.15A
20 AMPS
20 AMPS
20 AMPS
13.15 AMPS
HI-467PSI LO-230PSI

7
See the Nameplate for electrical and refrigeration specifications.
This Nameplate is located on the upper right hand side of rear panel.
Since this Nameplate is located on the rear panel of the icemaker, it
cannot be read when the back of the icemaker is against a wall or
against another piece of kitchen equipment. Therefore, the neces-
sary electrical and refrigeration information is also on the rating
label, which can be easily seen by removing only the front panel of
the icemaker.
We reserve the right to make changes in specifications and design without prior notice.
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 404A
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
KMD-900MAH
208-230/60/1
(3WIREW/NEUTRALFOR115V)
208-230V 11.2RLA 61LRA
120V 0.5FLA 10W
120V 0 .85FLA 50W
115-120V 0.15A
25 AMPS
25 AMPS
25 AMPS
15.5 AMPS
HI-467PSI LO-230PSI
3 lbs. 8.3 oz.
[d] KMD-900MAH (Air-cooled)

8
[e] KMD-900MWH (Water-cooled)
See the Nameplate for electrical and refrigeration specifications.
This Nameplate is located on the upper right hand side of rear panel.
Since this Nameplate is located on the rear panel of the icemaker, it
cannot be read when the back of the icemaker is against a wall or
against another piece of kitchen equipment. Therefore, the neces-
sary electrical and refrigeration information is also on the rating
label, which can be easily seen by removing only the front panel of
the icemaker.
We reserve the right to make changes in specifications and design without prior notice.
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 404A
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
KMD-900MWH
208-230/60/1
(3WIREW/NEUTRALFOR115V)
208-230V 11.2RLA 61LRA
120V 0.5FLA 10W
--- --- ---
115-120V 0.15A
25 AMPS
25 AMPS
25 AMPS
14.65 AMPS
HI-427PSI LO-230PSI
2 lbs.

9
[f] KMD-900MRH (Remote Air-cooled)
See the Nameplate for electrical and refrigeration specifications.
This Nameplate is located on the upper right hand side of rear panel.
Since this Nameplate is located on the rear panel of the icemaker, it
cannot be read when the back of the icemaker is against a wall or
against another piece of kitchen equipment. Therefore, the neces-
sary electrical and refrigeration information is also on the rating la-
bel, which can be easily seen by removing only the front panel of
the icemaker.
We reserve the right to make changes in specifications and design without prior notice.
MODEL NUMBER
SERIAL NUMBER
AC SUPPLY VOLTAGE
COMPRESSOR
PUMP
FAN
OTHER
MAXIMUM FUSE SIZE
MAX. HACR BREAKER (USA ONLY)
MAX. CIRC. BREAKER (CANADA ONLY)
MINIMUM CIRCUIT AMPACITY
DESIGN PRESSURE
REFRIGERANT 404A
MOTOR-COMPRESSOR THERMALLY PROTECTED
NOT INTENDED FOR OUTDOOR USE
KMD-900MRH
208-230/60/1
(3WIREW/NEUTRALFOR115V)
208-230V 11.2RLA 61LRA
120V 0.5FLA 10W
REMOTE 3A MAX
115-120V 0.15A
25 AMPS
25 AMPS
25 AMPS
14.65 AMPS
HI-467PSI LO-230PSI

10
2. DIMENSIONS/CONNECTIONS
[a] KMD-700MAH
Unit: mm. (inches)

11
[b] KMD-700MWH, KMD-900MWH
Unit: mm. (inches)

12
[c] KMD-700MRH, KMD-900MRH
Unit: mm. (inches)

13
[d] KMD-900MAH
Unit: mm. (inches)

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II. INSTALLATION AND OPERATING INSTRUCTIONS
1. CHECKS BEFORE INSTALLATION
IMPORTANT
1. Remove shipping carton, tape(s) and packing. If packing material is left in
the icemaker, it will not work properly.
2. Ensure all components, fasteners and thumbscrews are securely in place.
1) Remove the panels to prevent damage when installing the icemaker. (See “2. HOW TO
REMOVE PANELS.”)
2) Remove the package containing the accessories.
3) Remove the protective plastic film from the panels. If the icemaker is exposed to the sun
or to heat, remove the film after the icemaker cools.
4) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blade turns freely.
5) Check that the Compressor is snug on all mounting pads.
6) See the Nameplate on the Rear Panel, and check that your voltage supplied corre-
sponds with the voltage specified on the Nameplate.
7) This icemaker can be installed on a dispenser unit or a storage bin. The recommended
storage bin for all machines except the KMD-900MAH is Hoshizaki Ice Storage Bin,
Model B-500 series. The recommended storage bin for the KMD-900MAH is Hoshizaki
Ice Storage Bin, Model B-700 series.
8) On remote air-cooled models, a remote condenser unit is needed. The recommended
remote condenser unit is HOSHIZAKI CONDENSER UNIT, Model URC-12F.

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WARNING
This icemaker is not intended for outdoor use. Normal operating ambient
temperature should be within +45°F to +100°F; Normal operating water tem-
perature should be within +45°F to +90°F. Operation of the icemaker, for
extended periods, outside of these normal temperature ranges may affect
production capacity.
For best operating results:
•Icemaker should not be located next to ovens, grills or other high heat producing
equipment.
•Location should provide a firm and level foundation for the equipment.
•Allow 6" clearance at rear, sides and top for proper air circulation and ease of
maintenance and/or service should they be required.
3. LOCATION
Fig. 1
2. HOW TO REMOVE PANELS - See Fig. 1
a) Front Panel...............Remove the screw (s).
Lift up and toward you.
b) Top Panel................ Lift up at front slightly, push
rearward, and lift off.
c) Side Panel (R)......... Remove the screw.
Slide forward slightly ,
and lift off.
d) Insulation Panel....... Remove thumbscrew, lift up
slightly, and pull toward you.

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Fig. 2
4. SET UP
1) If mounting unit on top of a storage bin, unpack the storage bin, and attach the four adjust-
able legs provided (bin accessory) to the bottom of the storage bin. If mounting unit on top
of a dispenser, follow the dispenser set-up procedure.
2) Position the Storage Bin/Dispenser Unit in the selected permanent position.
3) Place the icemaker on the top of the Storage Bin/Dispenser Unit.
4) Secure the icemaker to the Storage Bin/Dispenser Unit, by using the two mounting
brackets and the bolts provided. See Fig. 2.
5) Level the icemaker and storage bin/dispenser unit in both the left-to-right and front-to-rear
directions. Adjust the storage bin/dispenser unit legs to make the icemaker level.
6) Replace the panels in their correct positions.
Icemaker
Mounting
Bolt
Bin
Icemaker
Mounting
Bolt
Dispenser

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5. ELECTRICAL CONNECTION
WARNING
1. Electrical connection must be made in accordance with the instructions on
a “WARNING” tag, provided with the pig tail leads in the Junction Box.
2. This icemaker requires a ground that meets the national and local electri-
cal code requirements. To prevent possible electrical shock to individuals
or extensive damage to the equipment, install a proper ground wire to the
icemaker.
•The white lead must be connected to the neutral conductor of the power source. Miswiring
results in severe damage to the icemaker. See Fig. 3.
•This icemaker must have a separate power supply or receptacle of proper capacity. See
the Nameplate.
•The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.
•Usually an electrical permit and services of a licensed electrician are required.
WARNING
ELECTRICAL CONNECTION
The white lead must be connected
to the neutral conductor of
the power source.
Miswiring results in severe
damage to the icemaker.
(See Fig. below.)
Fig.3

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6. INSTALLATION OF REMOTE CONDENSER UNIT
[a] CHECKS BEFORE INSTALLATION
1) Unpack and remove shipping carton, tape(s) and packing.
2) Check that the refrigerant lines do not rub or touch lines or other surfaces, and that the
fan blade moves freely.
[b] LOCATION
The condenser unit must be positioned in a permanent site under the following guidelines.
•A firm and flat site.
•A dry and well ventilated area with 24" clearance on both front and rear for ease of main-
tenance and service should they be required.
•Normal condenser ambient temperature: -20°F to +122°F. Temperatures not within this
operating range may affect the production capacity of the icemaker.
•The maximum line length for the standard refrigerant charge is 66 feet. Should an instal-
lation require a longer line length, please call 1-800-233-1940 for recommendations con-
cerning the correct additional refrigerant charge to be added.
Note: If the recommended guidelines of the installation are exceeded, the icemaker
performance may be reduced.
Air Air
Fig. 4

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[c] SET UP
1) Secure the Legs to the condenser unit with eight M8 x 16 mm Hexagon Bolts and M8
Nuts as shown in the illustration. See Fig. 5.
Note: Locate the Legs symmetrically.
2) The Legs have eight mounting holes. Secure the Legs with eight bolts (not included).
3) Install enough length of two copper tubings provided with Aeroquip couplings between
the icemaker and the condenser unit. The two copper tubings should be insulated
separately. See Fig. 6.
•Precharged tubing kits, available as optional equipment from HOSHIZAKI AMERICA,
are recommended .
4) Line sets fabricated in the field should be evacuated through the charging ports on the
Aeroquip couplings and charged with R-404A refrigerant vapor to a pressure of
15 - 30 PSIG.
Note: Factory fabricated tubing kits are precharged and do not need to be evacuated.
5) Remove the plastic caps protecting the couplings. Attach the two refrigerant lines to the
male couplings on the icemaker and the remote condenser unit. Each refrigerant line
must be connected as follows:
Icemaker discharge refrigerant line - 1/2" OD tubing to “DIS” of condenser unit
Icemaker liquid refrigerant line - 3/8" OD tubing to “LIQ” of condenser unit
Note: Care should be taken that the unit, line set and Condenser contain the same type
of refrigerant prior to making connections. Mixing of refrigerants will result in im-
proper operation and possible damage to the refrigeration system. Make the
connections at the remote condenser first and then at the icemaker.
Fig. 5 Fig. 6

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[d] ELECTRICAL CONNECTION
WARNING
This remote condenser unit requires a ground that meets the national and
local electrical code requirements. To prevent possible electrical shock to
individuals or extensive damage to equipment, install a proper ground wire
to this condenser unit.
•This condenser unit must be connected to the Fan Motor Junction Box on the icemaker.
•The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.
•Usually an electrical permit and services of a licensed electrician are required.
1) Remove the Panel.
2) Remove the Junction Box Cover.
3) Connect the Fan Motor leads in the Junction Box of the remote condenser unit to the Fan
Motor leads in the Junction Box of the HOSHIZAKI remote air-cooled icemaker.
4) Install a ground wire to the remote condenser unit.
5) Replace the Junction Box Cover and the Panel in their correct positions.
Fig. 7