Hoshizaki FS-1001MLH SERVICE MANUAL

NO:

ISSUED:

73122

September 12, 2005

HOSHIZAKI

MODULAR FLAKER

MODEL

FS-1001MLH/-C

ALSO COVERS

HOSHIZAKI CONDENSING UNIT

MODEL SRC-10H

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 Technical Support Department

Phone: [phone] Technical Service

[phone]

Fax: [phone]

[phone]

Web Site: www.hoshizakiamerica.com

NOTE: To 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

I. Specifications .................................................................................................................... 5

A. Icemaker ...................................................................................................................... 5

1. FS-1001MLH .......................................................................................................... 5

2. FS-1001MLH-C ...................................................................................................... 6

B. Condensing Unit .......................................................................................................... 7

1. SRC-10H ................................................................................................................ 7

II. General Information .......................................................................................................... 8

A. Dimensions .................................................................................................................. 8

1. Icemaker ................................................................................................................. 8

a) FS-1001MLH/-C ................................................................................................ 8

2. Condensing Unit..................................................................................................... 9

a) SRC-10H .......................................................................................................... 9

B. Construction ............................................................................................................... 10

1. Icemaker ............................................................................................................... 10

a) FS-1001MLH/-C .............................................................................................. 10

2. Condensing Unit................................................................................................... 11

a) SRC-10H ........................................................................................................ 11

C. Control Box Layout .................................................................................................... 12

1. Icemaker ............................................................................................................... 12

a) FS-1001MLH/-C .............................................................................................. 12

2. Condensing Unit................................................................................................... 13

a) SRC-10H ........................................................................................................ 13

III. Technical Information ..................................................................................................... 14

A. Water Circuit and Refrigeration Circuit ....................................................................... 14

1. Icemaker ............................................................................................................... 14

a) FS-1001MLH/-C .............................................................................................. 14

2. Condensing Unit................................................................................................... 15

a) SRC-10H ........................................................................................................ 15

B. Wiring Diagram .......................................................................................................... 16

1. Icemaker ............................................................................................................... 16

a) FS-1001MLH/-C .............................................................................................. 16

2. Condensing Unit................................................................................................... 17

a) SRC-10H ........................................................................................................ 17

C. Sequence of Electrical Circuit .................................................................................... 18

1. Icemaker ............................................................................................................... 18

D. Timing Chart .............................................................................................................. 27

E. Performance Data ...................................................................................................... 30

1. FS-1001MLH ........................................................................................................ 30

2. FS-1001MLH-C .................................................................................................... 31

3

IV. Service Diagnosis.......................................................................................................... 32

A. No Ice Production ...................................................................................................... 32

1. Icemaker ............................................................................................................... 32

2. Condensing Unit................................................................................................... 34

B. Low Ice Production .................................................................................................... 34

C. Other .......................................................................................................................... 35

V. Removal and Replacement of Components ................................................................... 36

A. Service for Refrigerant Lines ...................................................................................... 36

1. Refrigerant Recovery ........................................................................................... 36

2. Evacuation and Recharge [R-404A] ..................................................................... 36

a) Complete ......................................................................................................... 36

b) Partial evacuation with pumpdown ................................................................. 37

B. Brazing ....................................................................................................................... 38

C. Service for Condensing Unit ...................................................................................... 39

1. Removal and Replacement of Compressor .......................................................... 39

2. Removal and Replacement of Condensing Pressure Regulator (C.P.R.) ............. 40

D. Removal and Replacement of Drier ........................................................................... 41

E. Removal and Replacement of Expansion Valve ........................................................ 42

F. Removal and Replacement of Evaporator Assembly ................................................. 43

G. Removal and Replacement of Control Water Valve ................................................... 47

H. Removal and Replacement of Flush Water Valve ...................................................... 48

VI. Cleaning and Maintenance ........................................................................................... 49

A. Preparing the Icemaker for Long Storage ................................................................... 49

B. Cleaning and Sanitizing Instructions.......................................................................... 50

1. Cleaning Solution ................................................................................................. 50

2. Cleaning Procedure ............................................................................................. 50

3. Sanitizing Solution ............................................................................................... 52

4. Sanitizing Procedure - Initial ................................................................................. 52

5. Sanitizing Procedure - Final ................................................................................. 53

C. Maintenance Instructions ........................................................................................... 55

4

I. Specifications
A. Icemaker

1. FS-1001MLH

No Data Available

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

5

2. FS-1001MLH-C

AC SUPPLY VOLTAGE 115/60/1
GEAR MOTOR 120 V 3 FLA 1/4 HP
OTHER 120 V 0.03A
MAXIMUM FUSE SIZE 15 A
MAX. HACR BREAKER (USA ONLY) 15 A
MAX. CIRC. BREAKER (CANADA ONLY) 15 A
MINIMUM CIRCUIT AMPACITY 15 A
APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F)
PER 24 HR. Temp.(°F) 50 70 90
lbs./day ( kg/day ) 70 *830 (380) 805 (365) 785 (355)
Reference without *marks 80 765 (350) 750 (340) 730 (330)

90 710 (325) *705 (320) 680 (310)

100 660 (300) 650 (295) *600 (275)
SHAPE OF ICE Cubelet
ICE QUALITY Approx. 80%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITY N/A
ELECTRIC & W ATER CONSUMPTION 90/70°F 70/50°F
ELECTRIC W (kWH/100 lbs.) 1745 (5.96) 1713 (4.94)
ELECTRIC W (kWH/100 lbs.) 331 (1.13) 345 (1.00)
POTABLE WATER 84 (12) 100 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (W xDxH) 30" x 11" x 26" (766 x 279 x 660mm)
EXTERIOR FINISH St ainless St eel
WEIGHT Net 126 lbs. ( 57 kg ), Shipping 166 lbs. ( 75 kg )
CONNECTIONS - ELECTRIC Cord Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT

- REFRIGERATION Suction line 1-1/16-12 UNF Fitting (#10 AEROQUIP)
CIRCUIT Liquid line 5/8-18 UNF Fitting (#6 AEROQUIP)
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/4 HP Gear Motor )
ICE MAKING W ATER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTROL SYSTEM (Primary) Photoelctric Sensor
BIN CONTROL SYSTEM (Secondary) Mechanical Bin Control ( Prox imity Sw. )
CONDENSING UNIT Air-cooled Remote Condensing unit SRC-10H Required
EVAPORATOR Copper Tube on Cylinder
REFRIGERANT CONTROL Thermostat ic Expansion Valve

Condensing Pres sure Regulat or on SRC-10H

REFRIGERANT CHARGE R-404A, 8 lb.6oz. (3800g)

(Ice Maker: 4 oz., Cond. Unit: 8 lb. 2 oz. )
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
P. C. BOARD CIRCUIT PROTECTION Fus e (1A)
GEAR MOTOR PROTECTION Fuse (3A)
LOW WATER PROTECTION Float Switch and Timer
ACCE SSORIES -S UPPLIED Spare Fuse

-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

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

FS-1001MLH-C & SRC-10H

FS-1001MLH-C ONLY

6

B. Condensing Unit

1. SRC-10H

AC SUPPLY VOLTAGE 208-230/60/1 (3 W IRE W / NEUTRAL FOR 115V)
COMPRESSOR 208-230 9.6 RLA 46 LRA
FAN MOTOR 120 V 3 A MAX
OTHER 120 V 0.5 A
MAXIMUM FUSE SIZE 20 A
MAX. HACR BREAKER (USA ONLY) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
EXTERIOR DIMENSIONS (WxDxH) 28-1/4" x 23" x 19-7/8" (717 x 584 x 506mm)
DIMENSIONS WITH LEGS (W x DxH) 30-1/4" x 25-3/8" x 34-7/8" (770 x 645 x 886mm)
EXTERIOR FINISH Galvaniz ed St eel
WEIGHT (approximate) Net 143 lbs. ( 65 kg ), Shipping 169 lbs. ( 77 k g )
CONNECTIONS - ELECTRIC Permanent - Connection

- REFRIGERATION Discharge line 1-1/16-12 UNF Fitting (#10 AEROQUIP)
CIRCUIT Liquid line 5/8-18 UNF Fitting (#6 AEROQUIP)
COMPRESSOR Hermetic, Model RS80-C2E-CAV
CONDENSER Air-cooled fin and tube type
FAN MOTOR P ROTE CTION Thermal Prot ec t or
REFRIGERATION PROTECTION Auto-reset High Pressure Switch, Manual low Press ure Switch
REFRIGERANT CONTROL Condenser Pressure Regulator
PUMPDOW N CONTROL Auto-res et Low Pressure Swit ch
REFRIGERANT CHARGE R-404A, 8 lb.6oz. (3800g)

(Ice Maker: 4 oz., Cond. Unit: 8 lb. 2 oz. )
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
COMPRESSOR PROTECTION Internal Protector
ACCE SSORIES -S UPPLIED Leg 2 pcs.

Hex. Head Bolt w/ Washer 8X16 8 pcs.

Hex. Nut 8 pcs.
OPERATING CONDITIONS VOLTAGE RANGE 187-253 V

AMBIENT TEMP. -4-122° F

HEAT OF REJECTION 10500 BTU/hr

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

7

II. General Information
A. Dimensions

1. Icemaker

a) FS-1001MLH/-C

Unit = inches [mm]

8

2. Condensing Unit

a) SRC-10H

Unit = [inches] mm

9

B. Construction

1. Icemaker

a) FS-1001MLH/-C

Power Supply
Cord

Control Box

Water Supply
Inlet

Control Water
Valve

Bin Control

Ice Chute

Beam Sensor

Evaporator

Expansion
Valve

Gear Motor

Drier

Flush Water
Valve

10

2. Condensing Unit

a) SRC-10H

Condenser Pressure
Regulator

Fan Motor

Receiver Tank

Condenser

Control Box

Compressor

11

C. Control Box Layout

1. Icemaker

a) FS-1001MLH/-C

Cam
Timer

Water Control
Relay

Gear Motor
Relay

Connector

Capacitor

Transformer

Flush
Switch

Power
Switch

Fuse
(Timer Board 1A)

Fuse
(Gear Motor 3A)

Time Delay
Relay

Timer Board

Connector

12

2. Condensing Unit

a) SRC-10H

Pressure
Switch

Low Pressure Switch 1 (Control)
Cut-out 9 psig
Cut-in 29 psig

Starter (Relay)

Capacitor

Low Pressure Switch 2 (Safety)
Cut-out 3 psig
Cut-in 6 psig (manual reset)

Magnetic Contactor

Capacitor - Start

13

Capacitor - Run

III. Technical Information
A. Water Circuit and Refrigeration Circuit

1. Icemaker

a) FS-1001MLH/-C

14

2. Condensing Unit

a) SRC-10H

15

B. Wiring Diagram

1. Icemaker

a) FS-1001MLH/-C

16

2. Condensing Unit

a) SRC-10H

17