Hoshizaki F-800MWH Service Manual

Hoshizaki America, Inc.

Hoshizaki

Modular Flaker

Models F-800MAH(-C)

“A Superior Degree

of Reliability”

www.hoshizaki.com

F-800MWH(-C)

SERVICE MANUAL

Number: 73173 Issued: 9-2-2009

IMPORTANT

Only qualified service technicians should attempt to service or maintain this icemaker. No 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: 1-800-233-1940 Technical Service

(770) 487-2331

Fax: (770) 487-3360

NOTE: To expedite assistance, all correspondence/communication MUST include the following information:

• Model Number

• Serial Number

• Complete and detailed explanation of the problem

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. ICEMAKER ............................................................................................................. 5

F-800MAH .............................................................................................................. 5

F-800MWH ............................................................................................................. 6

F-800MAH-C .......................................................................................................... 7

F-800MWH-C ......................................................................................................... 8

II. GENERAL INFORMATION ...................................................................................... 9

1. CONSTRUCTION .................................................................................................. 9

F-800MAH/-C ......................................................................................................... 9

F-800MWH/-C ...................................................................................................... 10

2. CONTROL BOX LAYOUT .................................................................................... 11

F-800MAH/-C ....................................................................................................... 11

F-800MWH/-C ...................................................................................................... 12

III. TECHNICAL INFORMATION ................................................................................ 13

1. WATER CIRCUIT AND REFRIGERATION CIRCUIT .......................................... 13

F-800MAH/-C ....................................................................................................... 13

F-800MWH/-C ...................................................................................................... 14

2. WIRING DIAGRAM ............................................................................................... 15

F-800MAH/-C, F-800MWH/-C .............................................................................. 15

3. SEQUENCE OF ELECTRICAL CIRCUIT ............................................................ 16

4. TIMING CHART .................................................................................................... 26

5. PERFORMANCE DATA....................................................................................... 29

F-800MAH ............................................................................................................ 29

F-800MWH ........................................................................................................... 30

F-800MAH-C ........................................................................................................ 31

F-800MWH-C ....................................................................................................... 32

IV. ADJUSTMENT OF COMPONENTS ..................................................................... 33

1. ADJUSTMENT OF WATER REGULATING VALVE

- WATER-COOLED MODEL ONLY ..................................................................... 33

2. ADJUSTMENT OF FLAKE SIZE .......................................................................... 34

V. SERVICE DIAGNOSIS .......................................................................................... 35

1. NO ICE PRODUCTION ........................................................................................ 35

2. LOW ICE PRODUCTION ..................................................................................... 37

3. OTHERS .............................................................................................................. 38

VI. REMOVAL AND REPLACEMENT OF COMPONENTS....................................... 39

1. SERVICE FOR REFRIGERANT LINES............................................................... 39

[a] REFRIGERANT RECOVERY ......................................................................... 39

[b] EVACUATION AND RECHARGE .................................................................. 39

2. BRAZING.............................................................................................................. 40

3. REMOVAL AND REPLACEMENT OF COMPRESSOR ...................................... 41

4. REMOVAL AND REPLACEMENT OF DRIER ..................................................... 42

5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE .............................. 43

6. REMOVAL AND REPLACEMENT OF WATER REGULATING VALVE

- WATER-COOLED MODEL ONLY ..................................................................... 44

7. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE

REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLY ....................... 45

8. REMOVAL AND REPLACEMENT OF EVAPORATOR ASSEMBLY .................. 46

9. REMOVAL AND REPLACEMENT OF FAN MOTOR ........................................... 50

10. REMOVAL AND REPLACEMENT OF CONTROL WATER VALVE ................... 50

11. REMOVAL AND REPLACEMENT OF FLUSH WATER VALVE ......................... 51

VII. MAINTENANCE AND CLEANING INSTRUCTIONS .......................................... 52

1. PREPARING THE ICEMAKER FOR LONG STORAGE ...................................... 52

2. CLEANING INSTRUCTIONS ............................................................................... 54

3. MAINTENANCE ................................................................................................... 58

I. SPECIFICATION

1. ICEMAKER

F-800MAH

AC SUPPLY VOLTAGE 115-120/60/1 COMPRESSOR 120 V 9.2 RLA 60 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP FA N M OTOR 115 V 0.85F LA 1/15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. CIRC. BREAKER (CANADA ONLY) 20 A MINIMUM CIRCUIT AM P A CITY 20 A APPROXIMATE ICE PRODUCTION Am bient W A TER TEM P . (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./ day ( kg/ day ) 70 *800 (363) 765 (347) 735 (334) Reference without *m ark s 80 710 (321) 680 (309) 655 (297)

90 630 (286) *615 (279) 585 (264)

100 560 (254) 540 (245) *505 (229) SHAPE OF ICE Flake ICE QUALITY Approx. 70% , Ice (90/70°F, Conduct ivity 200 µs/c m ) APPROXIMATE STORAGE CAPACITY N/A ELE CTRIC & W A TER CO NS UM P TION 90/70°F 70/50°F ELECTRIC W (kW H/100 lbs.) 1205 (4.7) 1175 (3.5) PO TAB LE WATER 74 (12) 96 (12) gal./24HR (gal./100 lbs.) EXTERIOR DIMENS IONS (Wx Dx H) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642m m ) EXTERIOR FINISH St ainless S t eel, Galvanized St eel (Rear) W E IGHT Net 172 lbs. ( 78 kg ), S hipping 198 lbs. ( 90 kg ) CONNE CTIONS - ELE CTRIC Perm anent - Connec tion

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT ICE MAKING SYSTEM Auger type HARVESTING SYSTEM Direct Driven Auger ( 1/6 HP Gear Motor ) ICE MA K ING WA TER CONTROL Float S wit c h COOLING WA TER CONTROL N/A BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. ) COMPRESSOR Hermetic, Model RS55-C1E-PAA CONDE NSE R Air-cooled, F in and tube ty pe EVAPORATOR Copper Tube on Cylinder REF RIGERA NT CONTROL Thermos t atic E x pans ion V alve REF RIGERA NT CHARGE R-404A, 1 lb.10oz. (750g) DESIGN PRESSURE High 427 PSIG, Low 230 PSIG P. C. B O A RD CIRCUIT PROTECTION High Volt age Cut-off Relay COMPRESSOR PROTECTION Auto-reset Overload Protector GEAR MOTOR PROTECTION Manual reset Circuit Breaker or Fuse REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch LOW W ATER PROTECTION Float Switch and Timer ACCESSORIES -SUPPLIED Spare Fuse

-REQUIRED Ice Storage Bin OP E RA TING CONDITIONS VOLTAG E RA NGE 104 - 127 V

AMBIENT TEMP. 45 - 100° F WATER SUPPLY TEMP. 45 - 90° F WATER SUPPLY PRESSURE 10 - 113 PSIG

* W e reserve the right to m ak e c hanges in s pec ifications and des ign without prior notice.

F-800MWH

AC S UP P LY V O LTAGE 115-120/60/1 COM P RE S S OR 120 V 9.2 RLA 60 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. CIRC. BREAKER (CANADA ONLY) 20 A MINIMUM CIRCUIT AM P A CITY 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PE R 24 HR. Temp.(°F) 50 70 90 lbs./ day ( kg/ day ) 70 *720 (327) 695 (314) 680 (309) Reference without *m arks 80 670 (304) 660 (299) 650 (294)

90 640 (290) *625 (284) 620 (280)

100 605 (276) 595 (271) *555 (252) SHAPE OF ICE Flake ICE QUA LITY Approx . 70% , Ice (90/70°F, Conduc t ivity 200 µs/ cm ) APPROXIMATE STORAGE CAPACITY N/A ELE CTRIC & W A TER CON SUM P TION 90/ 70°F 70/50°F ELE CTRIC W (kWH/100 lbs .) 1100 (4.2) 1090 (3.6) PO TAB LE WA TER 75 (12) 86 (12) W A TER-COO LE D CO NDE NS E R 539 (86) 318 (44) gal./24HR (gal./ 100 lbs. ) EXTERIOR DIMENS IONS (W x Dx H) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642m m ) EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear) W E IGHT Net 172 lbs . ( 78 kg ), S hipping 198 lbs . ( 90 k g ) CONNE CTIONS - ELE CTRIC Perm anent - Connec tion

- W A TER SUPPLY Inlet 1/2" FPT Cond. Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT Cond. Outlet 3/8" - 18 NPT ICE MAKING SYSTEM Auger type HARV E S TING S Y S TEM Direct Driven Auger ( 1/6 HP Gear Mot or ) ICE MA K ING W A TER CONTROL Float Switc h COOLING WATER C ONTROL Autom atic Water Regulator BIN CONTROL S Y S TEM Mec hanic al B in Control ( Prox im ity S w. ) COM P RE S S OR Hermetic , M odel RS 55-C1E-P A A CONDE NS E R W at er-cooled, Tube in tube type EV A P ORA TOR Copper Tube on Cylinder REF RIGERA NT CONTROL Thermos t atic E x pans ion Va lve REF RIGERA NT CHA RGE R-404A, 13oz . (365g) DES IGN P RE S S URE High 427 PS IG, Low 230 P S IG P. C. B OA RD CIRCUIT PROTECTION High V oltage Cut-off Relay COM P RE S SO R P ROTECTION Auto-reset Overload Protec tor GE A R M OTOR P ROTECTION M anual reset Circuit B reak er or Fuse REF RIGERA NT CIRCUIT PROTECTION A ut o-reset High P ress ure Control Sw itc h LOW WATER PROTECTION Float Switch and Timer ACCESSORIES -SUPPLIED Spare Fuse

-RE QUIRED Ice S torage Bin OP E RA TING CONDITIO NS VOLTAG E RA NGE 104 - 127 V

AM B IENT TEMP . 45 - 100° F W A TER S UP P LY TEM P. 45 - 90° F W A TER S UP P LY P RE S S URE 10 - 113 PSIG

* W e res erve the right to mak e c hanges in s pec ifications and des ign without prior notice.

F-800MAH-C

AC S UP P LY V O LTAG E 115-120/60/1 COMPRESSOR 120 V 9.2 RLA 60 LRA GE A R M OTOR 120 V 1. 6 FLA 1/6 HP FA N M OTOR 115 V 0. 85FLA 1/ 15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. CIRC. BREAKER (CANADA ONLY) 20 A MINIMUM CIRCUIT AM P A CITY 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PE R 24 HR. Temp.(°F) 50 70 90 lbs. /day ( k g/day ) 70 *760 (345) 730 (331) 700 (316) Reference without *m ark s 80 665 (303) 640 (289) 610 (277)

90 585 (265) *575 (261) 535 (242)

100 510 (231) 490 (221) *455 (206) SHAPE OF ICE Cubelet ICE QUA LITY Approx . 80%, Ice (90/70°F, Conduc t ivity 200 µs/ c m ) APPROXIMATE STORAGE CAPACITY N/A ELE CTRIC & WA TER CO NS UM P TION 90/70°F 70/50°F ELE CTRIC W (k WH/ 100 lbs . ) 1240 (5.2) 1195 (3.8) PO TAB LE WA TER 69 (12) 91 (12) gal./24HR (gal./100 lbs.) EXTERIOR DIME NS IONS (Wx Dx H) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642m m ) EXTERIOR FINISH St ainles s S teel, G alvanized S t eel (Rear) W E IGHT Net 172 lbs . ( 78 k g ), S hipping 198 lbs . ( 90 kg ) CONNE CTIONS - ELE CTRIC P ermanent - Connec tion

- W ATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT ICE MAKING SYSTEM Auger type HARVESTING SYSTEM Direct Driven Auger ( 1/6 HP Gear Motor ) ICE MA K ING WA TER CO NTROL F loat S wit c h COOLING WA TER CO NTROL N/A BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. ) COMPRESSOR Hermetic, Model RS55-C1E-PAA CONDE NS E R Air-cooled, F in and tube t y pe EVAPORATOR Copper Tube on Cy li nder REF RIGER AN T CONTROL Thermost at ic E x pans ion V alve REF RIGERA NT CHA RGE R-404A, 1 lb. 10oz . (750g) DES IGN P RE S S URE High 427 PS IG, Low 230 P S IG P. C. B O A RD CIRCUIT PROTECTION High V oltage Cut -off Relay COMPRESSOR PROTECTION Auto-reset Overload Protector GE A R M OTOR P RO TECTION M anual reset Circ uit B reak er or Fuse REF RIGERA NT CIRCUIT PROTECTION Auto-reset High P ress ure Control S witc h LOW WATER P RO TECTION F loat S wit c h and Timer ACCESSORIES -SUPPLIED Spare Fuse

-REQUIRED Ic e Storage Bin OP E RA TING CONDITIONS VOLTAG E RA NGE 104 - 127 V

AM B IENT TEMP . 45 - 100° F WATER SUPPLY TEMP. 45 - 90° F WATER SUPPLY PRESSURE 10 - 113 PSIG

* W e res erve the right to m ak e c hange s in s pec ifications and des ign wit hout prior notic e.

F-800MWH-C

AC S UP P LY V OLTAG E 115-120/60/1 COM P RE S S OR 120 V 9.2 RLA 60 LRA GE A R MO TOR 120 V 1.6 FLA 1/6 HP OTHER 120 V 0. 03A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. CIRC. BREAKER (CANADA ONLY) 20 A MINIMUM CIRCUIT A MPACITY 20 A APPROXIMATE ICE PRODUCTION Ambient W ATER TEMP. (°F) PE R 24 HR. Temp. (°F) 50 70 90 lbs. / day ( k g/day ) 70 *670 (304) 650 (295) 640 (290) Reference wit hout *m arks 80 625 (284) 615 (279) 605 (274)

90 590 (268) *590 (268) 570 (258)

100 560 (253) 550 (249) *505 (229) SHA P E OF ICE Cubelet ICE QUA LITY A pprox. 80% , Ice (90/70°F, Conduc tivity 200 µs /c m ) APPROXIMATE STORAGE CAPACITY N/A ELE CTRIC & W A TER CO NS UM P TION 90/ 70°F 70/ 50°F ELE CTRIC W (kWH/100 lbs . ) 1155 (4.7) 1140 (4.1) PO TAB LE WATER 71 (12) 81 (12) W A TER-COO LE D CO NDE NS E R 553 (94) 318 (47) gal./ 24HR (gal./ 100 lbs . ) EXTERIOR DIMENS IONS (Wx Dx H) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642m m ) EXTERIOR FINISH St ainles s S t eel, Galvanized St eel (Rear) W E IGHT Net 172 lbs. ( 78 k g ), Shipping 198 lbs . ( 90 k g ) CONNE CTIONS - E LE CTRIC P erm anent - Connec tion

- WA TER S UP P LY Inlet 1/2" F P T Cond. Inlet 1/ 2" F P T

- DRA IN Out let 3/ 4" FP T Cond. O utl et 3/ 8" -18 NPT ICE MA K ING S Y S TEM Auger ty pe HARV E S TING SY S TEM Direc t Driven Auger ( 1/6 HP Gear M otor ) ICE MA K ING WA TER CO NTROL Float S wit c h COOLING W A TER CO NTROL A ut om atic Water Regulator BIN CONTROL SY S TEM M ec hanic al B in Cont rol ( Prox im it y S w. ) COM P RE S S OR Hermet ic , M odel RS 55-C1E -PA A CONDE NS E R Water-cool ed, Tube in tube t y pe EV A P O RA TOR Copper Tube on Cylinder REF RIGERA NT CONTROL Thermos tat ic E x pansion V alve REF RIGERA NT CHARG E R-404A, 13oz. (365g) DESIGN PRESSURE High 427 PSIG, Low 230 P S IG P. C. B O A RD CIRCUIT PROTECTION High Volt age Cut -off Relay COM P RES S O R P ROTECTION Auto-reset Overload Protec t or GE A R M OTOR P ROTECTION M anual res et Ci rcuit B reak er or Fuse REF RIGERA NT CIRCUIT PRO TECTION A ut o-reset High P res s ure Control S witch LOW WATER P ROTECTION Float S wit c h and Timer ACCESSORIES -SUPPLIED Spare Fuse

-RE Q UIRED Ice St orage B in OP E RA TING CONDITIONS VOLTAGE RA NG E 104 - 127 V

AM B IENT TEMP . 45 - 100° F W A TER S UPP LY TEM P . 45 - 90° F W A TER S UPP LY P RE S S URE 10 - 113 PSIG

* W e res erve the right to m ak e changes in s pec ificat ions and des ign without prior notic e.

II. GENERAL INFORMATION

1. CONSTRUCTION

F-800MAH/-C

Control Water Valve

Water Supply Inlet

Bin Control

Ice Chute

Evaporator

Expansion Valve

Flush Water Valve

Control Box

Gear Motor

Junction Box

Condenser

Fan Motor

Compressor

Drier

F-800MWH/-C

Control Water Valve

Water Supply Inlet

Bin Control

Ice Chute

Evaporator

Expansion Valve

Flush Water Valve

Control Box

Gear Motor

Junction Box

Water Regulator

Compressor

Drier

2. CONTROL BOX LAYOUT

)

F-800MAH/-C

CONNECTOR

PRESSURE SWITCH

FLUSH TIMER

GEAR MOTOR RELAY

CIRCUIT PROTECT RELAY

GEAR MOTOR PROTECT RELAY

WATER CONTROL RELAY

FAN MOTOR CAP

STARTER

TRANSFORMER

FLUSH

GEAR MOTOR CAP.

FLUSH SWITCH

ICE

POWER SWITCH

START CAPACITOR

RUN CAPACITOR

CONTROL TIMER

Note: The above component names are identical with the Wiring Label, but not with

the Parts List.

FUSE

FUSE (GEAR MOTOR

F-800MWH/-C

CONNECTOR

PRESSURE SWITCH

FLUSH TIMER

GEAR MOTOR RELAY

CIRCUIT PROTECT RELAY

GEAR MOTOR PROTECT RELAY

WATER CONTROL RELAY

STARTER

TRANSFORMER

GEAR MOTOR CAP.

FLUSH

ICE

FLUSH SWITCH

POWER SWITCH

START CAPACITOR

RUN CAPACITOR

CONTROL TIMER

FUSE

FUSE (GEAR MOTOR)

III. TECHNICAL INFORMATION

1. WATER CIRCUIT AND REFRIGERATION CIRCUIT

F-800MAH/-C

F-800MWH/-C

2. WIRING DIAGRAM

F-800MAH/-C, F-800MWH/-C

3. SEQUENCE OF ELECTRICAL CIRCUIT

[a] When Power Switch is moved to “ON” position and Flush Switch to “ICE” position, water starts to be supplied to Reservoir.

[b] When Reservoir has been filled, Gear Motor starts immediately.

[c] Compressor starts about 60 sec. after Gear Motor starts.

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