Hoshizaki KM-1300SAF3, KM-1300SWF, KM-1300SWF3, KM-1300SAF, KM-1300SRF3 SERVICE MANUAL

NO:
ISSUED:
REVISED:

73076

OCT . 8, 1998

DEC. 14, 2003

HOSHIZAKI

STACKABLE CRESCENT CUBER

MODELS

KM-1300SAF
KM-1300SWF
KM-1300SRF
KM-1300SAF3
KM-1300SWF3
KM-1300SRF3

SERVICE MANUAL

IMPORTANT

Only qualified service technicians should attempt to service or maintain this icemaker.
No such service or maintenance should be undertaken until the technician has
thoroughly read this Service Manual.

HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
service and maintenance 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.

HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City , GA 30269

Attn: HOSHIZAKI T echnical Support Department

Phone: [phone] T echnical Service

[phone]

Fax: [phone]

NOTE: T o expedite assistance, all correspondence/communication MUST include the following

information:

• Model Number

• Serial Number

• Complete and detailed explanation of the problem

2

Please review this manual. It should be read carefully before the icemaker is serviced
or maintenance operations are performed. Only qualified service technicians should
service and maintain the icemaker. This manual should be made available to the

technician prior to service or maintenance.

CONTENTS

PAGE

I. SPECIFICATIONS .................................................................................................... 5

1. KM-1300SAF (Air-cooled)................................................................................... 5

2. KM-1300SWF (Water-cooled)............................................................................. 6

3. KM-1300SRF (Remote air-cooled)...................................................................... 7

4. KM-1300SAF3 (Air-cooled, 3 phase) .................................................................. 8

5. KM-1300SWF3 (Water-cooled, 3 phase) ............................................................ 9

6. KM-1300SRF3 (Remote air-cooled, 3 phase)................................................... 10

7. CONDENSING UNIT, URC-12F ....................................................................... 11

II. GENERAL INFORMATION .................................................................................... 13

1. CONSTRUCTION ............................................................................................. 13

[a] KM-1300SAF/3............................................................................................ 13

[b] KM-1300SWF/3........................................................................................... 14

[c] KM-1300SRF/3............................................................................................ 15

2. CONTROLLER BOARD.................................................................................... 1 6

[a] SOLID-STATE CONTROL .......................................................................... 16

[b] CONTROLLER BOARD.............................................................................. 16

[c] SEQUENCE ................................................................................................ 23

[d] CONTROLS AND ADJUSTMENTS ............................................................ 26

[e] CHECKING THE CONTROLLER BOARD ................................................... 29

III. TECHNICAL INFORMATION............................................................................... 32

1. WATER CIRCUIT AND REFRIGERANT CIRCUIT........................................... 32

[a] KM-1300SAF/3............................................................................................ 32

[b] KM-1300SWF/3........................................................................................... 33

[c] KM-1300SRF/3............................................................................................ 34

2. WIRING DIAGRAMS......................................................................................... 35

[a] KM-1300SAF............................................................................................... 35

[b] KM-1300SWF.............................................................................................. 36

[c] KM-1300SRF............................................................................................... 37

[d] KM-1300SAF3............................................................................................. 38

[e] KM-1300SWF3............................................................................................ 39

[f] KM-1300SRF3 ............................................................................................. 40

3. TIMING CHART ................................................................................................ 41

4. PERFORMANCE DATA.................................................................................... 43

[a] KM-1300SAF............................................................................................... 43

[b] KM-1300SWF.............................................................................................. 44

[c] KM-1300SRF............................................................................................... 45

[d] KM-1300SAF3............................................................................................. 46

[e] KM-1300SWF3............................................................................................ 47

[f] KM-1300SRF3 ............................................................................................. 48

3

IV. SERVICE DIAGNOSIS ...........................................................................................49

1. NO ICE PRODUCTION........................................................................................49

2. EVAPORATOR IS FROZEN UP..........................................................................5 2

3. LOW ICE PRODUCTION.....................................................................................53

4. ABNORMAL ICE..................................................................................................53

5. OTHERS ..............................................................................................................53

V. REMOVAL AND REPLACEMENT OF COMPONENTS ..........................................54

1. SERVICE FOR REFRIGERANT LINES...............................................................5 4

[a] REFRIGERANT RECOVERY ........................................................................ 54

[b] EVACUATION AND RECHARGE..................................................................54

2. BRAZING .............................................................................................................55

3. REMOVAL AND REPLACEMENT OF COMPRESSOR ......................................56

4. REMOVAL AND REPLACEMENT OF DRIER.....................................................57

5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE ..............................5 8

6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE, ......................................

LINE VALVE AND GAS VALVE.......................................................................... 59

7. REMOVAL AND REPLACEMENT OF EVAPORATOR .......................................60

8. REMOVAL AND REPLACEMENT OF WATER-REGULATING VALVE..................

- WATER COOLED MODEL ONLY .................................................................... 61

9. ADJUSTMENT OF WATER-REGULATING VALVE................................................

- WATER COOLED MODEL ONLY .................................................................... 62

10. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE .......................

REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLY .................. 63

11. REMOVAL AND REPLACEMENT OF THERMISTOR.........................................64

12. REMOVAL AND REPLACEMENT OF FAN MOTOR ...........................................65

13. REMOVAL AND REPLACEMENT OF WATER VALVE....................................... 66

14. REMOVAL AND REPLACEMENT OF PUMP MOTOR........................................66

15. REMOVAL AND REPLACEMENT OF SPRAY TUBES .......................................67

VI. MAINTENANCE AND CLEANING INSTRUCTIONS.............................................. 68

1. PREPARING THE ICEMAKER FOR LONG STORAGE......................................68

2. CLEANING PROCEDURE...................................................................................70

[a] CLEANING PROCEDURE.............................................................................71

[b] SANITIZING PROCEDURE ...........................................................................73

3. MAINTENANCE...................................................................................................74

4

I. SPECIFICATIONS

1. KM-1300SAF (Air-cooled)

AC SUPPLY VOLTAGE
AMPERAGE
MINIMUM CIRCUIT AMPACITY
MAXIMUM FUSE SIZE
APPROX. ICE PRODUCTION
PER 24 HR.

lbs./day ( kg./day )
Reference without *marks

SHAPE OF ICE
ICE PRODUCTION PER CYCLE
APPROXIMATE STORAGE CAPACITY
ELECTRIC & WATER CONSUMPTION

ELECTRIC W ( KWH/100 lbs. )

WATER gal./24 HR. ( gal./100 lbs. )
EXTERIOR DIMENSIONS ( WxDxH )
EXTERIOR FINISH
WEIGHT
CONNECTIONS - ELECTRIC

- WATER SUPPLY

- DRAIN

CUBE CONTROL SYSTEM
HARVESTING CONTROL SYSTEM
ICE MAKING WATER CONTROL
COOLING WATER CONTROL
BIN CONTROL SYSTEM
COMPRESSOR
CONDENSER
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
DESIGN PRESSURE
P.C. BOARD CIRCUIT PROTECTION
COMPRESSOR PROTECTION
REFRIGERANT CIRCUIT PROTECTION
LOW WATER PROTECTION
ACCESSORIES - SUPPLIED

- REQUIRED

OPERATION CONDITIONS

208-230/60/1 ( 3 wire with neutral for 115 V )

12.6 A ( 5 min. freeze AT 104° F / WT 80° F )
20A
20A

Ambient Water Temp. (°F)
Temp. (°F) 50 70 90
70 *1283 (582) 1238 (562) 1135 (515)
80
90 1238 (562) *1129 (512) 1011 (458)
100 1203 (546) 1101 (500) *902 (409)

Crescent Cube

30.1 lbs. ( 13.7 kg. ) 1440 pcs.
N/A
90° F / 70° F 70° F / 50° F
2235 ( 4.75 ) 2180 ( 4.08 )
247 ( 21.9 ) 479 ( 37.3 )
48" x 273¦8" x 273¦8" ( 1219 x 695 x 695 mm. )
Stainless steel, Galvanized Steel ( Rear )
Net 275 lbs. ( 125 kg. ) Shipping 315 lbs. ( 143 kg. )
Permanent Connection
Inlet 1¦2" FPT
Outlet 3¦4" FPT

3

¦8" ID Pipe
Float Switch
Hot Gas and Water, Thermistor and Timer
Timer Controlled, Overflow Pipe
N/A
Thermostat
Hermetic, Model CS14K6E-PFV
Air-cooled, Fin and Tube type
Vertical type, Stainless Steel and Copper
Thermostatic Expansion Valve
R404A, 3 lbs. 14 oz. ( 1750 g. )
High 467 PSIG, Low 230 PSIG
High Voltage Cut-out ( Internal )
Auto-reset Overload Protector ( Internal )
Auto-reset High Pressure Control Switch
Float Switch
N/A
Ice Storage Bin
VOLTAGE RANGE 187 - 264 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS. 10 - 113 PSIG

1249 (566) 1178 (535) 1053 (478)

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

5

2. KM-1300SWF (Water-cooled)

AC SUPPLY VOLTAGE

AMPERAGE

MINIMUM CIRCUIT AMPACITY
MAXIMUM FUSE SIZE
APPROX. ICE PRODUCTION
PER 24 HR.

lbs./day ( kg./day )
Reference without *marks

SHAPE OF ICE
ICE PRODUCTION PER CYCLE
APPROXIMATE STORAGE CAPACITY
ELECTRIC & WATER CONSUMPTION

ELECTRIC W ( KWH/100 lbs. )
WATER gal./24 HR. ( gal./100 lbs. )
WATER COOLED CONDENSER

gal./24 hr. ( gal./100 lbs. )
EXTERIOR DIMENSIONS ( WxDxH )
EXTERIOR FINISH
WEIGHT
CONNECTIONS - ELECTRIC

- WATER SUPPLY

- DRAIN

CUBE CONTROL SYSTEM
HARVESTING CONTROL SYSTEM
ICE MAKING WATER CONTROL
COOLING WATER CONTROL
BIN CONTROL SYSTEM
COMPRESSOR
CONDENSER
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
DESIGN PRESSURE
P.C. BOARD CIRCUIT PROTECTION
COMPRESSOR PROTECTION
REFRIGERANT CIRCUIT PROTECTION
LOW WATER PROTECTION
ACCESSORIES - SUPPLIED

- REQUIRED

OPERATION CONDITIONS

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

208-230/60/1 ( 3 wire with neutral for 115 V )

9.7 A ( 5 MIN. Freeze AT 104° F / WT 80° F )
20A
20A

Ambient Water Temp. (°F)
Temp. (°F) 50 70 90

70
80
90
100

*1252 ( 568 ) 1233 ( 559 ) 1176 ( 533 )

1238 ( 561 ) 1209 ( 548 ) 1134 ( 514 )

1233 ( 559 ) *1188 ( 539 ) 1119 ( 508 )

1211 ( 549 ) 1172 ( 532 ) 1056 ( 479 )

Crescent Cube

30.1 lbs. ( 13.7 kg. ) 1440 pcs.
N/A
90° F / 70° F 70° F / 50° F
2050 ( 4.0 ) 1975 ( 3.8 )
325 ( 27.4 ) 623 ( 49.8 )
1521 ( 128 ) 964 ( 77 )

48" x 273¦8" x 273¦8" ( 1219 x 695 x 695 mm. )
Stainless steel, Galvanized Steel ( Rear )
Net 265 lbs. ( 120 kg. ) Shipping 315 lbs. ( 143 kg. )
Permanent Connection
Inlet
Outlet

1

¦2" FPT Condenser Inlet1¦2" FPT

3

¦4" FPT Condenser Outlet3¦8" FPT

3

¦8" ID Pipe
Float Switch
Hot Gas and Water, Thermistor and Timer
Timer Controlled, Overflow Pipe
Water Regulator
Thermostat
Hermetic, Model CS14K6E-PFV
Water-cooled, Tube in Tube type
Vertical type, Stainless Steel and Copper
Thermostatic ExpansionValve
R404A, 2 lb. 2 oz. ( 950 g. )
High 427 PSIG, Low 230 PSIG
High Voltage Cut-out ( Internal )
Auto-reset Overload Protector ( Internal )
Auto-reset High Pressure Control Switch
Float Switch
N/A
Ice Storage Bin
VOLTAGE RANGE 187 - 253 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS. 10 - 113 PSIG

6

3. KM-1300SRF (Remote air-cooled)

AC SUPPLY VOLTAGE
AMPERAGE
MINIMUM CIRCUIT AMPACITY
MAXIMUM FUSE SIZE
APPROX. ICE PRODUCTION REFERENCE
PER 24 HR.

lbs./day ( kg./day )
Reference without *marks

SHAPE OF ICE
ICE PRODUCTION PER CYCLE
APPROXIMATE STORAGE CAPACITY
ELECTRIC & WATER CONSUMPTION

ELECTRIC W ( KWH/100 lbs. )

WATER gal./24 HR. ( gal./100 lbs. )
EXTERIOR DIMENSIONS ( WxDxH )
EXTERIOR FINISH
WEIGHT
CONNECTIONS - ELECTRIC

- WATER SUPPLY

- DRAIN

CUBE CONTROL SYSTEM
HARVESTING CONTROL SYSTEM
ICE MAKING WATER CONTROL
COOLING WATER CONTROL
BIN CONTROL SYSTEM
COMPRESSOR
CONDENSER

EVAPORATOR
REFRIGERANT CONTROL

REFRIGERANT CHARGE

DESIGN PRESSURE
P.C. BOARD CIRCUIT PROTECTION
COMPRESSOR PROTECTION
REFRIGERANT CIRCUIT PROTECTION
LOW WATER PROTECTION
ACCESSORIES - SUPPLIED

- REQUIRED

OPERATION CONDITIONS

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

208-230/60/1 ( 3 wire with neutral for 115 V )

14.5 A ( 5 min. freeze AT 104° F / WT 80° F )
20A
20A
Ambient Water Temp. (°F)
Temp. (°F) 50 70 90
70 *1296 (588) 1248 (566) 1173 (532)
80
90
100

Crescent Cube

30.1 lbs. ( 13.7 kg. ) 1440 pcs.
N/A
90°F/70°F 70°F/50°F
2350 ( 4.98 ) 2300 ( 4.26 )
273 ( 24.1 ) 456 ( 35.2 )
48" x 273¦8" x 273¦8" ( 1219 x 695 x 695 mm. )
Stainless steel, Galvanized Steel (Rear)
Net 255 lbs. ( 116 kg. ) Shipping 315 lbs. ( 143 kg. )
Permanent Connection
Inlet 1¦2" FPT
Outlet 3¦4" FPT

Float Switch
Hot Gas and Water, Thermistor and Timer
Timer Controlled, Overflow Pipe
N/A
Thermostat
Hermetic, Model CS14K6E-PFV
Air-cooled remote, Condenser Unit URC-12F
recommended
Vertical type, Stainless Steel and Copper
Thermostatic Expansion Valve,
Condensing Pressure Regulator on URC-12F
R404A, 11 lbs. 7 oz. ( 5200 g. )
( Ice maker 7 lbs.; Cond. unit 4 lbs. 7 oz. )
HIGH 467 PSIG, LOW 230 PSIG
High Voltage Cut-out ( Internal )
Auto-reset Overload Protector ( Internal )
Auto-reset High Pressure Control Switch
Float Switch
N/A
Ice Storage Bin, Remote Condenser Unit
VOLTAGE RANGE 187 - 264 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS. 10 - 113 PSIG

1260 (571) 1185 (538) 1105 (501)

1248 (566) *1133 (514) 1053 (478)
1230 (558) 1114 (505) *980 (445)

3¦8" ID Pipe

7

4. KM-1300SAF3 (Air-cooled)

AC SUPPLY VOLTAGE
AMPERAGE
MINIMUM CIRCUIT AMPACITY
MAXIMUM FUSE SIZE
APPROX. ICE PRODUCTION
PER 24 HR.

lbs./day ( kg./day )
Reference without *marks

SHAPE OF ICE
ICE PRODUCTION PER CYCLE
APPROXIMATE STORAGE CAPACITY
ELECTRIC & WATER CONSUMPTION

ELECTRIC W ( KWH/100 lbs. )

WATER gal./24 HR. ( gal./100 lbs. )
EXTERIOR DIMENSIONS ( WxDxH )
EXTERIOR FINISH
WEIGHT
CONNECTIONS - ELECTRIC

- WATER SUPPLY

- DRAIN

CUBE CONTROL SYSTEM
HARVESTING CONTROL SYSTEM
ICE MAKING WATER CONTROL
COOLING WATER CONTROL
BIN CONTROL SYSTEM
COMPRESSOR
CONDENSER
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
DESIGN PRESSURE
P.C. BOARD CIRCUIT PROTECTION
COMPRESSOR PROTECTION
REFRIGERANT CIRCUIT PROTECTION
LOW WATER PROTECTION
ACCESSORIES - SUPPLIED

- REQUIRED

OPERATION CONDITIONS

208-230/60/3

7.8 A ( 5 min. freeze AT 104° F / WT 80° F )
20A
20A

Ambient Water Temp. (°F)
Temp. (°F) 50 70 90
70 *1320 ( 599 )
80

1272 ( 577 ) 1174 ( 533 ) 1060 ( 481 )

1257 ( 570 ) 1153 ( 523 )

90 1257 ( 570 ) *1105 ( 501 ) 993 ( 450 )
100 1230 ( 558 ) 1079 ( 489 ) *890 ( 404 )

Crescent Cube

30.1 lbs. ( 13.7 kg. ) 1440 pcs.
N/A
90° F / 70° F 70° F / 50° F
2275 ( 5.0 ) 2150 ( 3.9 )
292 ( 21.9 ) 488 ( 37.3 )
48" x 273¦8" x 273¦8" ( 1219 x 695 x 695 mm. )
Stainless steel, Galvanized Steel ( Rear )
Net 275 lbs. ( 125 kg. ) Shipping 315 lbs. ( 143 kg. )
Permanent Connection
Inlet 1¦2" FPT
Outlet 3¦4" FPT

3

¦8" ID Pipe
Float Switch
Hot Gas and Water, Thermistor and Timer
Timer Controlled, Overflow Pipe
N/A
Thermostat
Hermetic, Model CS14K6E-TF5
Air-cooled, Fin and Tube type
Vertical type, Stainless Steel and Copper
Thermostatic ExpansionValve
R404A, 3 lbs. 14 oz. ( 1750 g. )
High 467 PSIG, Low 230 PSIG
High Voltage Cut-out; Low Voltage Cut-out (Internal)
Auto-reset Overload Protector ( Internal )
Auto-reset High Pressure Control Switch
Float Switch
N/A
Ice Storage Bin
VOLTAGE RANGE 187 - 253 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS. 10 - 113 PSIG

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

8

5. KM-1300SWF3 (Water-cooled)

AC SUPPLY VOLTAGE

AMPERAGE

MINIMUM CIRCUIT AMP ACITY
MAXIMUM FUSE SIZE
APPROX. ICE PRODUCTION
PER 24 HR.

lbs./day ( kg./day )
Reference without *marks

SHAPE OF ICE
ICE PRODUCTION PER CYCLE
APPROXIMATE STORAGE CAPACITY
ELECTRIC & WATER CONSUMPTION

ELECTRIC W ( KWH/100 lbs. )
WATER gal./24 HR. ( gal./100 lbs. )
WATER COOLED CONDENSER

gal./24 hr. ( gal./100 lbs. )
EXTERIOR DIMENSIONS ( WxDxH )
EXTERIOR FINISH
WEIGHT
CONNECTIONS - ELECTRIC

- WATER SUPPLY

- DRAIN

CUBE CONTROL SYSTEM
HARVESTING CONTROL SYSTEM
ICE MAKING WATER CONTROL
COOLING WATER CONTROL
BIN CONTROL SYSTEM
COMPRESSOR
CONDENSER
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
DESIGN PRESSURE
P.C. BOARD CIRCUIT PROTECTION
COMPRESSOR PROTECTION
REFRIGERANT CIRCUIT PROTECTION
LOW WATER PROTECTION
ACCESSORIES - SUPPLIED

- REQUIRED

OPERATION CONDITIONS

208-230/60/3

6.9 A ( 5 MIN. Freeze AT 104° F / WT 80° F )
20A
20A

Ambient Water Temp. (°F)
Temp. (°F) 50 70 90

70
80

90
100

*1301 ( 590 ) 1273 ( 577 ) 1205 ( 547 )
1279 ( 580 ) 1235 ( 560 ) 1152 ( 523 )
1273 ( 577 ) *1204 ( 546 ) 1126 ( 511 )
1250 ( 567 ) 1186 ( 538 ) *1055 ( 479)

Crescent Cube

30.1 lbs. ( 13.7 kg. ) 1440 pcs.
N/A
90° F / 70° F 70° F / 50° F
2125 ( 4.0 ) 2075 ( 3.8 )
342 ( 27.7 ) 648 ( 49.8 )
1372 ( 112 ) 885 ( 68 )

48" x 273¦8" x 273¦8" ( 1219 x 695 x 695 mm. )
Stainless steel, Galvanized Steel ( Rear )
Net 265 lbs. ( 120 kg. ) Shipping 315 lbs. ( 143 kg. )
Permanent Connection
Inlet
Outlet

1

¦2" FPT Condenser Inlet1¦2" FPT

3

¦4" FPT Condenser Outlet3¦8" FPT

3

¦8" ID Pipe
Float Switch
Hot Gas and Water, Thermistor and Timer
Timer Controlled, Overflow Pipe
Water Regulator
Thermostat
Hermetic, Model CS14K6E-TF5
Water-cooled, Tube in Tube type
Vertical type, Stainless Steel and Copper
Thermostatic ExpansionValve
R404A, 2 lb. 2 oz. ( 950 g. )
High 427 PSIG, Low 230 PSIG
High Voltage Cut-out, Low Voltage Cut-out ( Internal )
Auto-reset Overload Protector ( Internal )
Auto-reset High Pressure Control Switch
Float Switch
N/A
Ice Storage Bin
VOLTAGE RANGE 187 - 253 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS. 10 - 113 PSIG

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

9

6. KM-1300SRF3 (Remote air-cooled)

AC SUPPLY VOLTAGE
AMPERAGE
MINIMUM CIRCUIT AMPACITY
MAXIMUM FUSE SIZE
APPROX. ICE PRODUCTION REFERENCE
PER 24 HR.

lbs./day ( kg./day )
Reference without *marks

SHAPE OF ICE
ICE PRODUCTION PER CYCLE
APPROXIMATE STORAGE CAPACITY
ELECTRIC & WATER CONSUMPTION

ELECTRIC W ( KWH/100 lbs. )

WATER gal./24 HR. ( gal./100 lbs. )
EXTERIOR DIMENSIONS ( WxDxH )
EXTERIOR FINISH
WEIGHT
CONNECTIONS - ELECTRIC

- WATER SUPPLY

- DRAIN

CUBE CONTROL SYSTEM
HARVESTING CONTROL SYSTEM
ICE MAKING WATER CONTROL
COOLING WATER CONTROL
BIN CONTROL SYSTEM
COMPRESSOR
CONDENSER

EVAPORATOR
REFRIGERANT CONTROL

REFRIGERANT CHARGE

DESIGN PRESSURE
P.C. BOARD CIRCUIT PROTECTION
COMPRESSOR PROTECTION
REFRIGERANT CIRCUIT PROTECTION
LOW WATER PROTECTION
ACCESSORIES - SUPPLIED

- REQUIRED

OPERATION CONDITIONS

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

208-230/60/3

10.8 A ( 5 min. freeze AT 104° F / WT 80° F )
20A
20A
Ambient Water Temp. (°F)
Temp. (°F) 50 70 90
70 *1308 (593) 1282 (581) 1203 (546)
80

1288 (584) 1247 (566) 1145 (520)
90 1282 (581) *1218 (552) 1125 (510)
100 1252 (568) 1196 (543)

*1039 (471)

Crescent Cube

30.1 lbs. ( 13.7 kg. ) 1440 pcs.
N/A
90°F/70°F 70°F/50°F
2300 ( 4.53 )2270 ( 4.17 )
252 ( 20.7 ) 463 ( 35.4 )

3

48" x 27

¦8" x 273¦8" ( 1219 x 695 x 695 mm. )
Stainless steel, Galvanized Steel (Rear)
Net 255 lbs. ( 116 kg. ) Shipping 315 lbs. ( 143 kg. )
Permanent Connection
Inlet

1

¦2" FPT

Outlet 3¦4" FPT

3¦8" ID Pipe
Float Switch
Hot Gas and Water, Thermistor and Timer
Timer Controlled, Overflow Pipe
N/A
Thermostat
Hermetic, Model CS14K6E-TF5
Air-cooled remote, Condenser Unit URC-12F
recommended
Vertical type, Stainless Steel and Copper
Thermostatic Expansion Valve,
Condensing Pressure Regulator on URC-12F
R404A, 11 lbs. 7 oz. ( 5200 g. )
( Ice maker 7 lbs.; Cond. unit 4 lbs. 7 oz. )
HIGH 467 PSIG, LOW 230 PSIG
High Voltage Cut-out ( Internal )
Auto-reset Overload Protector ( Internal )
Auto-reset High Pressure Control Switch
Float Switch
N/A
Ice Storage Bin, Remote Condenser Unit
VOLTAGE RANGE 187 - 264 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS. 10 - 113 PSIG

10

7. CONDENSING UNIT

URC-12F

11

MODEL: URC-12F

SPECIFICATIONS

EXTERIOR

DIMENSIONS (W x D x H)

REFRIGERANT CHARGE

URC-12F

WEIGHT

CONNECTIONS

REFRIGERANT
ELECTRICAL

CONDENSER

HEAD PRESSURE CONTROL

AMBIENT CONDITION

Galvanized Steel

35 - 11/16” x 15-11/16” x 21-15/16”
(907.2 x 398 x 557.8 mm)

R404A 4 lbs. 7 oz. (2000 g)

Net 80 lbs. (36 kg)
Shipping 87 lbs. (39 kg)

One Shot Couplings (Aeroquip)
Permanent Connection

Air-cooled

Condensing Pressure Regulator

Min. -20°F - Max. +122°F
(-29°C to +50°C)
Outdoor use

12

II. GENERAL INFORMATION

1. CONSTRUCTION

[a] KM-1300SAF/3

13

[b] KM-1300SWF/3

14

[c] KM-1300SRF/3

15

2. CONTROLLER BOARD

[a] SOLID-STATE CONTROL

1) A HOSHIZAKI exclusive solid-state control is employed in KM-1300SAF,
KM-1300SWF, KM-1300SRF, KM-1300SAF3, KM-1300SWF3 and KM-1300SRF3
Stackable Crescent Cubers.

2) A Printed Circuit Board (hereafter called “Controller Board”) includes a stable and
high quality control system.

3) All models are pretested and factory-adjusted.

[b] CONTROLLER BOARD

CAUTION

1. Fragile, handle very carefully.

2. A controller board contains integrated circuits, which are susceptible to
failure due to static discharge. It is especially important to touch the
metal part of the unit when handling or replacing the board.

3. Do not touch the electronic devices on the board or the back of the
board to prevent damage to the board.

4. Do not change wiring and connections. Especially, never misconnect
K3, K4 and K5, because the same connector is used for the Thermistor
and Float Switch. K4 is not connected.

5. Do not fix the electronic devices or parts on the board in the field.

Always replace the whole board assembly when it goes bad.

6. Do not short out power supply to test for voltage.

16

KM-1300S_F/3 models use either the Alpine Controller Board (orange):

PART NUMBER TYPE

2U0127-01 MY9KM910 (Alpine)

MY9KM91B (Alpine)

OR the Control Products Board (green):

PART NUMBER TYPE

2A0836-01 HOSHIZAKI 001 (Control Products - 8 Pin)

OR the Control Products Improved “E” Board (green):

PART NUMBER TYPE

2A1410-01 HOS-001A (Control Products - 10 Pin)

Features of All Three Controller Boards

(1) Maximum Water Supply Period - 6 minutes

Water Solenoid Valve opening, in the Defrost (Harvest) Cycle, is limited by
maximum period of the defrost timer. The Water Valve cannot remain open
longer than the maximum period. The Water Valve can close in less than the
maximum period if the defrost cycle is completed.

(2) Defrost Timer

The defrost cycle starts when the Float Switch opens and completes the
freeze cycle. But the Defrost Timer does not start counting until the Ther­mistor senses 48°F at the Evaporator outlet. The period from the end of the
freeze cycle up to the point of the Thermistor's sensing varies depending on
the ambient and water temperatures.

(3) High Temperature Safety - 127 ± 7°F

The temperature of the suction line in the refrigerant circuit is limited by the
High Temperature Safety.
During the defrost cycle the Evaporator temperature rises. The Thermistor
senses 48°F and starts the Defrost Timer. After the Defrost Timer counts
down to zero, the normal freeze cycle begins. If the Evaporator temperature
continues to rise, the Thermistor will sense the rise in temperature and at 127
± 7°F the Thermistor operates the High Temperature Safety.

17

This High Temperature Safety shuts down the circuit and the icemaker automati­cally stops. To reset the safety, turn the power off and back on again.
This High Temperature Safety protects the unit from excessive temperature.

(4) Low Water Safety

If the Pump Motor is operated without water, the mechanical seal can fail. To pre­vent this type of failure, the Controller Board checks the position of the Float Switch
at the end of the initial one minute water fill cycle and at the end of each defrost
cycle.
If the Float Switch is in the up position (electrical circuit closed), the Controller
Board changes to the ice making cycle. If the Float Switch is in the down position
(electrical circuit open), the Controller Board changes to a one minute water fill
cycle before starting the ice making cycle. This method allows for a Low Water
Safety shut down to protect the Water Pump from mechanical seal failure.
For water-cooled model, if the water is shut off, the unit is protected by the High
Pressure Switch.

(5) High Voltage Cut-out

The maximum allowable supply voltage of this icemaker is limited by the High
Voltage Cut-out.
If miswiring causes excessive voltage on the Controller Board, the High Voltage
Cut-out shuts down the circuit in 3 seconds and the icemaker automatically stops.
When the proper supply voltage is resumed, the icemaker automatically starts
running again.

18

Connector K1
Pins #1 through #10

#1, 9 Magnetic Contactor
#2 Hot Gas Valve
#3 Line Valve
#4 Pump Motor (icemaking)
#5 Pump Motor (drain)
#6 Water Valve
#7, 10 Power (line, Bin Control)
#8 Open

Dip Switch
Defrost Timer, Drain Timer
& Drain Counter

Connector K5
Float Switch

Connector K4
Open
(not connected)

Connector K3
Defrost Control
(Thermistor)

(Alpine “C”/Alpine Board)

19

Features of Control Products “E” Controller Board

The “E” board includes LED lights and audible alarm safeties. The red LED indicates proper control
voltage and will remain on unless a control voltage problem occurs. At startup a 5 second delay
occurs while the board conducts an internal timer check. A short beep occurs when the power
switch is turned ON or OFF.

The green LED’s 1-4 represent the corresponding relays and energize and sequence 5 seconds
from initial startup as follows:

Sequence Step LED’s on Length: Min. Max. Avg.

1 Minute Fill Cycle LED4 60 sec.
Harvest Cycle LED1, 4, & 2 2 min. 20 min. 3-5 min.
Freeze Cycle LED1 5 min. 60 min. 30-35 min.
Reverse Pump Out LED1, 3, & 2 10 sec. 20 sec. Factory set.

{LED 1 – Comp; LED 2 - HGV/CFM; LED 3 – PM; LED 4 - WV}
The built in safeties shut down the unit and have alarms as follows:

1 beep every 3 sec. = High Evaporator Temperature >127 ° F.
Check for defrost problem (stuck HGV or relay), hot water entering unit, stuck headmaster, or

shorted thermistor.
2 beeps every 3 sec. = Defrost Back Up Timer. Defrost >20 minutes.

Orange LED marked 20 MIN energizes.

Check for open thermistor, HGV not opening, TXV leaking by, low charge, or inefficient compressor.
3 beeps every 3 sec. = Freeze Back Up Timer. Freeze > 60 minutes.

Yellow LED marked 60 MIN energizes.
Check for F/S stuck closed (up), WV leaking by, HGV leaking by, TXV not feeding properly, low
charge, or inefficient compressor.

To manually reset the above safeties, depress white alarm reset button with the power supply ON.

6 beeps every 3 sec. = Low Voltage. Voltage is 92 Vac or less.
7 beeps every 3 sec. = High Voltage. Control voltage > 147Vac ±5%.

The red LED will de-energize if voltage protection operates.
The voltage safety automatically resets when voltage is corrected.

The Output Test switch “S3” provides a relay sequence test. With power OFF, place S3 on and
switch power to ICE. The correct lighting sequence should be none, 2, 3, 4, 1, & 4, normal se­quence every 5 seconds. S3 should remain in the “OFF” position for normal operation.

The application switch located between relay X3 & X4 must be set to match the original board
application. Place this switch in the ALP position if there is no white wire supplied to the K1 connec­tor. If there is a white wire, place the switch in the C position. If this switch is placed in the wrong
position either the compressor contactor will remain energized with the control switch OFF or the unit
will not start.

The dip switches should be adjusted per the adjustment chart published in the Tech Specs book. 7 &
8 must remain in the OFF position.

20

(Control Products HOSHIZAKI001 Board)

21

(Control Products HOS-001A Board)

22

[c] SEQUENCE

1st Cycle [KM-1300SAF/3, KM-1300SWF/3 and KM-1300SRF/3]

1. Unit energized and Control Switch to “ICE”
position. Water supply cycle starts.

2. After 1 minute.
Defrost cycle starts.

3. Thermistor reads 48°F.
Defrost Timer starts counting.

5. After the first 5 minutes in freeze cycle.
Ready to complete freeze cycle when Float
Switch circuit opens.

IMPORTANT

Board never accepts freeze completion signal
within the first 5 minutes in freeze cycle.

IMPORTANT

Water Valve
opening is limited
to 6 minutes.

4. Defrost Timer stops counting.
Defrost cycle is completed and freeze cycle
starts.

IMPORTANT

1. Board never accepts defrost completion signal
within the first 2 minutes in defrost cycle.

2. Defrost cycle time is limited to 20 minutes even
if Defrost Timer does not stop counting.

23