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11

E. Electrical Connection

 WARNING

For All Models

1. Electrical connection must be hard-wired and must meet national, state, and 

local electrical code requirements. Failure to meet these code requirements 
could result in death, electric shock, serious injury, fire, or severe damage to 
equipment.

2. This unit requires an independent power supply. See the nameplate for 

proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse 
can result in a tripped breaker, blown fuses, or damage to existing wiring. 
This could lead to heat generation or fire.

3. 

THIS UNIT MUST BE GROUNDED. 

Failure to properly ground this unit could 

result in death or serious injury.

4. Electrical connection must be made in accordance with the label provided 

next to the junction box. See Fig. 3.

Additional Warnings for Remote Air-Cooled Model

5. 

THE REMOTE CONDENSER UNIT MUST BE GROUNDED. 

The power 

supply and ground wire to the remote condenser unit are supplied from the 
icemaker. See "II.F.5. Electrical Connection."

6. To reduce the risk of electric shock, make all remote condenser unit 

connections before connecting the icemaker power supply.

7. On remote air-cooled models, the icemaker should have power for a 

minimum of 4 hours prior to startup to prevent compressor damage.

• Usually an electrical permit and services of a licensed electrician are required.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.
• The opening for the power supply connection is 7/8" DIA to fit a 1/2" trade size conduit.

KM-901MAH50
KM-901MRH50

Fig. 3

L

N

230V

4A1169-011

Summary of Contents for KM-901MAH50

Page 1: ...Hoshizaki A Superior Degree of Reliability www hoshizaki com Models KM 901MAH50 KM 901MRH50 Modular Crescent Cuber Hoshizaki America Inc Issued 6 21 2010 INSTRUCTION MANUAL...

Page 2: ...ual 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 ad...

Page 3: ...gerant Charge Line Set Exceeding 66 Feet 16 6 Electrical Connection 16 7 Stacking Remote Condenser Units 17 G Water Supply and Drain Connections 18 H Final Checklist 20 I Startup 21 III Cleaning and M...

Page 4: ...ock serious injury or fire follow basic precautions including the following Electrical connection must be hard wired and must meet national state and local electrical code requirements Failure to meet...

Page 5: ...ications and design without prior notice HOSHIZAKI ICE MAKER MODEL NUMBER KM 901MAH50 SERIAL NUMBER AC SUPPLY VOLTAGE 230V FREQUENCY 50HZ ELECTRICAL CONSUMPTION 2157W COMPRESSOR CONSUMPTION 1921W AMPE...

Page 6: ...AKI ICE MAKER MODEL NUMBER KM 901MRH50 SERIAL NUMBER AC SUPPLY VOLTAGE 230V FREQUENCY 50HZ ELECTRICAL CONSUMPTION 2222W COMPRESSOR CONSUMPTION 1961W AMPERAGE 9 2A STARTING AMPERAGE 37A REFRIGERANT 404...

Page 7: ...7 Unit mm in B Dimensions Connections 1 KM 901MAH50...

Page 8: ...8 2 KM 901MRH50 Unit mm in...

Page 9: ...the sun or to heat remove the film after the icemaker cools Check that the refrigerant lines do not rub or touch lines or other surfaces and that the fan blade if applicable turns freely Check that t...

Page 10: ...to ovens grills or other high heat producing equipment The location should provide a firm and level foundation for the equipment Allow 6 15 cm clearance at rear sides and top for proper air circulati...

Page 11: ...connection must be made in accordance with the label provided next to the junction box See Fig 3 Additional Warnings for Remote Air Cooled Model 5 THE REMOTE CONDENSER UNIT MUST BE GROUNDED The power...

Page 12: ...unit for extended periods outside of this normal temperature range may affect icemaker performance The remote condenser unit must be positioned in a permanent site under the following guidelines A fi...

Page 13: ...y Line Set Installation 1 Route the factory line set 1 2 OD discharge line and 3 8 OD liquid line from the remote condenser unit to the icemaker Leave a service loop behind the icemaker to allow the i...

Page 14: ...sing nitrogen gas 140 PSIG WARNING DO NOT use R 404A as a mixture with pressurized air for leak testing 3 Evacuate through the Schrader access ports on the Parker quick connect couplings and charge wi...

Page 15: ...nsure that it is not cross threaded d Tighten the connection with a wrench until it is tight At this point the nut has covered most of the threads on the male fitting e Mark a reference line on the fe...

Page 16: ...the icemaker to the remote condenser unit Use wire of an appropriate gage and outdoor rating Failure to properly ground the unit could result in death or serious injury 3 The remote condenser unit le...

Page 17: ...the lower remote condenser unit as described earlier in this section 2 Place the upper remote condenser unit on top of the lower See Fig 11 3 Secure the upper remote condenser unit to the lower remote...

Page 18: ...ed plumber may be required in some areas External filters strainers or softeners may be required depending on water quality Contact your local Hoshizaki distributor for recommendations Water supply pr...

Page 19: ...ondensation drain outlet is 3 8 OD tube The condensation drain line can be connected to the icemaker drain line or can be run separately Fig 12 KM 901MAH50 and KM 901MRH50 Separate piping to approved...

Page 20: ...On remote air cooled model has a proper ground also been installed to the remote condenser unit 8 Are the water supply line shut off valve and drain valve installed Has the water supply pressure been...

Page 21: ...ove the control switch on the control box 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...

Page 22: ...te To remove cubes on the evaporator turn off the power supply and turn it back on after 3 minutes The harvest cycle starts and the cubes will be removed from the evaporator 3 Turn off the power suppl...

Page 23: ...nnect one end of the pump tubing to drain the water tank After the water tank has drained reconnect the pump tubing 25 Repeat steps 14 through 24 three more times to rinse thoroughly Note If you do no...

Page 24: ...om the air and keep the condenser from getting clogged As the filters get clogged the icemaker s performance will be reduced Check the filters at least twice a month When clogged use warm water and a...

Page 25: ...supply line out using the compressed air or carbon dioxide supply 9 Close the icemaker water supply line drain valve 2 Drain the water tank 1 Turn off the power supply then remove the front panel 2 Mo...

Page 26: ...26 618 Hwy 74 S Peachtree City GA 30269 USA TEL 770 487 2331 FAX 770 487 3360 www hoshizaki com 91A1JP10A HOSHIZAKI AMERICA INC...

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