Hoshizaki KM-500MAH Manual de usuario

™

SERVICE MANUAL

ISSUED: NOV. 7, 2002

KM-500MAH

KM-500MWH

KM-500MRH

MODULAR CRESCENT CUBER

Reliability is a

beautiful thing

REVISED: DEC. 16, 2003

NUMBER: 73104

I. SPECIFICATIONS

1. KM-500MAH

Note: We reserve the right to make changes in specifications and design without prior notice.

AC SUPPLY VOLTAGE 115/60/1

AMPERAGE 13 A ( 5 Min. Freeze AT 104°F / WT 80°F)

MINIMUM CIRCUIT AMPACITY 20 A

MAXIMUM FUSE SIZE 20 A

APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F)

PER 24 HR. Temp.(°F) 50 70 90

lbs./day ( kg/day ) 70 *499 (226) 468 (212) 428 (194)

Reference without *marks 80 475 (216) 427 (194) 389 (176)

90 468 (212) *393 (178) 353 (160)

100 461 (209) 384 (174) 317 (144)

SHAPE OF ICE Crescent Cube

ICE PRODUCTION PER CYCLE 9.5 lbs. ( 4.3 kg ) 480 pcs.

APPROXIMATE STORAGE CAPACITY N/A

ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F

ELECTRIC W (kWH/100 lbs.) 1212 (7.4) 1164 (5.6)

WATER gal./24HR (gal./100 lbs.) 113 (28.8) 250 (50.1)

EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 30-5/6" (560 x 695 x 770 mm)

EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)

WEIGHT Net 151 lbs. ( 69 kg ), Shipping 175 lbs. (80 kg)

CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT

CUBE CONTROL SYSTEM Float Switch

HARVESTING CONTROL SYSTEM Hot Gas and Water, Thermistor and Timer

ICE MAKING WATER CONTROL Timer Controlled. Overflow Pipe

COOLING WATER CONTROL N/A

BIN CONTROL SYSTEM Proximity Switch with Delay

COMPRESSOR Hermetic, Model AKA9455ZXA

CONDENSER Air-cooled, Fin and tube type

EVAPORATOR Vertical type, Stainless Steel and Copper

REFRIGERANT CONTROL Thermostatic Expansion Valve

REFRIGERANT CHARGE R-404A, 1 lb. 10 oz. ( 735 g )

DESIGN PRESSURE High 467 PSIG, Low 230 PSIG

P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-out ( Internal )

COMPRESSOR PROTECTION Auto-reset Overload Protector ( Internal )

REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

LOW WATER PROTECTION Float Switch

ACCESSORIES -SUPPLIED N/A

-REQUIRED Ice Storage Bin

OPERATING CONDITIONS VOLTAGE RANGE 104 - 127 V

AMBIENT TEMP. 45 -100° F

WATER SUPPLY TEMP. 45 - 90° F

WATER SUPPLY PRESSURE 10 - 113 PSIG

3/8" OD Pipe

II. GENERAL INFORMATION

1. CONSTRUCTION

[a] KM-500MAH

Spray Tubes Water Supply Inlet

Control Switch

Condenser

Hot Gas Valve

Expansion Valve Fan Motor

Condenser

Compressor Drier

Float Switch Control Box

Water Pump

Bin Control Thermostat

(exceptmodels with

MechanicalBinControl)

Mechanical

Bin Control

(exceptmodels

withThermostat)

III. TECHNICAL INFORMATION

1. WATER CIRCUIT AND REFRIGERANT CIRCUIT

[a] KM-500MAH

4. PERFORMANCE DATA

[a] KM-500MAH

Note: Pressure data is recorded at 5 minutes into freeze cycle. The data not in bold should be used for

reference only.

We reserve the right to make changes in specifications and design without prior notice.

70/21 499 226 468 212 428 194

80/27 475 216 427 194 389 176

90/32 468 212 393 178 353 160

lbs./day kg./day 100/38 461 209 384 174 317 144

70/21

80/27

90/32

watts 100/38

70/21 250 0.95 210 0.79 187 0.71

80/27 219 0.83 157 0.59 153 0.58

90/32 210 0.79 113 0.43 100 0.38

gal./day m3/day 100/38 163 0.62 110 0.42 89 0.34

70/21

80/27

90/32

min. 100/38

70/21

80/27

90/32

min. 100/38

70/21 244 17.2 263 18.5 285 20.1

80/27 259 18.2 289 20.3 308 21.7

90/32 263 18.5 310 21.8 331 23.3

PSIG kg/cm

G100/38 266 18.7 315 22.1 350 24.6

70/21 49 3.4 52 3.7 54 3.8

80/27 51 3.6 56 3.9 57 4.0

90/32 52 3.7 59 4.1 61 4.3

PSIG kg/cm2G100/38 52 3.6 59 4.2 62 4.4

3.3

2.6

2.0

8206 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3.3 2.0

28 29

31 33

WATERTEMP. (ºF/ºC)

AMBIENT TEMP.

(ºF/ºC) 50/10 70/21 90/32

1164

1175

1178

APPROXIMATE ICE

PRODUCTION PER 24 HR.

APPROXIMATE ELECTRIC

CONSUMPTION

APPROXIMATE WATER

CONSUMPTION PER 24 HR.

FREEZING CYCLE TIME

1186

1178

1197

1212

1219

1204

1227

1241

1268

SUCTION PRESSURE

TOTAL HEAT OF REJECTION FROM CONDENSER

30 33

HARVEST CYCLE TIME

HEAD PRESSURE 2.0

3.9

3.5

3.3

3.1

2.5

2.0

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