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 T echnical Support Department
Phone: 1-800-233-1940 T echnical Service
(770) 487-2331
Fax:(770) 487-3360
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
AC SUPPLY VOLTAGE208-230/60/1 (3 wire with neutral f or 115V)
COMPRESSOR240 V4.2 RLA34 LRA
GEAR MOTOR120 V1.6 FLA1/6 HP
FAN MOTOR115 V0.85FLA1/15 HP
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (°F)
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day )70*970 (440)930 (422)890 (404)
Reference without *marks80855 (388)820 (372)785 (357)
90755 (342)*740 (336)695 (314)
100665 (301)635 (289)595 (270)
SHAPE OF ICEFlake
ICE QUALITYApprox. 70%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & W A TER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/ 100 lbs.)1200 (3.9)1160 (2.9)
POTABLE WAT E R89 (12)116 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27- 3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, Galvanized Steel (Rear)
WEIGHTNet 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRICPermanent - Connection
- WATER SUPPLYInlet 1/2" FPT
- DRAINOutlet 3/4" FPT
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLN/A
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
COMPRESSORHermetic, Model RS70-C1E-PFV
CONDENSERAir-cooled, Fin and tube type
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLThermost atic Expansion Valve
REFRIGERANT CHARGER-404A,1 lb.12oz.(800g)
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTIONHigh Voltage Cut-off R elay
COMPRESSOR PROTECTIONInternal Protector
GEAR MOTOR PROTECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage Bin
OPERATING CONDITIONSVOLTAGE RANGE187-253 V
AMBIENT TEMP.45-100° F
WATER SUPPLY TEMP.45-90° F
WATER SUPPLY PRESSURE10-113 PSIG
DRAWING NO.
DIMENSION
3A0981
We reserve the right to make changes in specifications and design without prior notice.
5
F-1000MWF
AC SUPPLY VOLTAGE208-230/60/1 (3 wire with neutral for 115V)
COMPRESSOR240 V4.2 RLA34 LRA
GEAR MO TOR120 V1.6 FLA1/6 HP
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPAC ITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (°F)
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day )70*890 (404)855 (389)840 (380)
Reference without *marks80820 (372)805 (364)785 (356)
90770 (349)*755 (342)735 (334)
100720 (327)705 (320)655 (297)
SHAPE OF ICEFlake
ICE QUALITYApprox. 70%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)1160 (3.7)1155 (3.1)
POTABLE WATER91 (12)107 (12)
WATER-COOLED CONDENSER480 (63)303 (34)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, Galvanized Steel (Rear)
WEIGHTNet 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRICPermanent - Connection
- WATER SUPPLYInlet 1/2" FPT Cond. Inlet 1/2" FPT
- DRAINOutlet 3/4" FPTCond. Outlet 3/8"-18NPT
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLAutomatic Water Regulator
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
COMPRESSORHermetic, Model RS70-C1E-PFV
CONDENSERWater-cooled, Tube in tube type
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLThermostatic Expansion Valve
REFRIGERANT CHARGER-404A,15oz. (425g)
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTIONHigh Voltage Cut-off Relay
COMPRE S SOR PROTECTIONInternal Protector
GEAR MOTOR PROTECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage B in
OPERATING CONDITIONSVOLTAGE RANGE187-253 V
AMBIENT TEMP.45-100° F
WATER SUPPLY TEMP.45-90° F
WATER SUPPLY PRESSURE10-113 PSIG
DRAWING NO. (DIMENSION)3A0982
We reserve the right to make changes in specifications and design without prior notice.
6
F-1000MRF
AC SUPPLY VOLTAG E208-230/60/1 (3 wire with neutral for 115V)
COMPRESSOR240 V4.2 RLA34 LRA
GEAR MOTOR120 V1.6 FLA1/6 HP
FAN MOTOR REMOT E120 V 3 A MAX
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (°F)
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day )70*930 (422)895 (407)865 (393)
Reference without *marks80835 (379)805 (366)780 (353)
90750 (341)*745 (338)700 (317)
100675 (306)650 (296)605 (274)
SHAPE OF ICEFlake
ICE QUALITYApprox. 70%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & W ATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)1295 (4.2)1285 (4.5)
POTABLE WATER89 (12)111(12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIME NSIONS (WxD xH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR F INISHStainless Steel, Galvanized Steel (Rear)
W EIG HTNet 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIO N S - ELECTRICPermanent - Connection
- WATER SUPPLYInlet 1/2" FPT
- DRA INOu tlet 3 /4 " FPT
- REFRIGERATIO NDischarge line 1-1/16-12 UNF Fitting (#10 AEROQUIP)
CIRC U ITLiquid line 5/8-18 UNF Fitting (# 6 A EROQUIP )
ICE MAKING SYSTEMAuger type
HARVESTING SYST EMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING W AT ER CONTROLFloat Switch
COOLING WATER CONTROLN/A
BIN CONTRO L S YST E MMechanical Bin Control ( Proximity Sw. )
COMPRESSORHerm etic, Model RS70-C1E-PFV
CONDENSERAir-cooled Remote Condenser unit URC-6F Recommended
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLThermostatic Expansion Valve
Condensing Pressure Regulator on URC-6F
REFRIGERANT CHARGER -404A,4 lb.1oz. (1850g)
(Ice Maker: 2 lb. 3 oz., Con d . U n it: 1 lb. 1 4 o z. )
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PRO T ECTIONHigh Voltage Cut-off Relay
COMP R ESSOR PR OTECTIONInternal Protector
GEAR MOT O R P ROTECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW W ATER PROTECT IONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Sto r a g e Bin
OPERATING CONDITIONSV O LTAGE RANGE187-253 V
AMBIENT TEMP .45-100° F
W A T E R SUPPLY TEMP.45-90° F
W A T E R SUPPLY PRESSURE10-113 PSIG
DRAWING NO. (DIMENSION)3A 0983
We reserve the right to make changes in specifications and design without prior notice.
7
F-1000MLF
AC SUPPLY VOLTAGE115/60/1
GEAR MOTOR120 V1.6 FLA1/6 HP
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (F)
PER 24 HR.Temp. (F)507090
lbs./day ( kg/day )701150 (522)1035 (469)1005 (456)
This data is for reference only,80980 (444)950 (431)925 (420)
different condensing unit will vary data.90900 (408)885 (401)850 (386)
100830 (376)805 (366)690 (313)
SHAPE OF ICEFlake
ICE QUALITYApprox. 70%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)130 (0.35)130 (0.27)
POTABLE WATER106 (12)138 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, Galvanized Steel (Rear)
WEIGHTNet 110 lbs. ( 50 kg ), Shipping 137 lbs. ( 62 kg )
CONNECTIONS - ELECTRICPermanent - Connection
- WATER SUPPLYInlet 1/2" FPT
- DRAINOutlet 3/4" FPT
- REFRIGERATIONOutlet (Vapor) line 1-1/16-12 UNF Fitting (#10 AEROQUIP)
CIRCUITInlet (Liquid) line 5/8-18 UNF Fitting (#6 AEROQUIP)
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLN/A
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
CONDENSING UNITRequired refrigeration capacity for ice maker is 5700 BTU/h
at discharge pressure 213 PSIG and suction pressure
31.2 PSIG with R-404A refrigerant.
Suction pressure needs to be 31.2 PSIG.
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLThermostatic Expansion Valve
Evaporator Pressure Regulator
REFRIGERANT CHARGER-404A,3.6 oz. (100g Holding Charge)
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTIONHigh Voltage Cut-off Relay
COMPRESSOR PROTECTIONInternal Protector
GEAR MOTOR PROTECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage Bin
OPERATING CONDITIONSVOLTAGE RANGE104-127 V
AMBIENT TEMP.45-100° F
WATER SUPPLY TEMP.45-90° F
WATER SUPPLY PRESSURE10-113 PSIG
DRAWING NO. (DIMENSION)3A0984
We reserve the right to make changes in specifications and design without prior notice.
8
F-1000MAF-C
AC SUPPLY VOLTAGE208-230/60/1 (3 wire with neutral for 115V)
COMPRESSOR240 V4.2 RLA34 LRA
GEAR MOTOR120 V1.6 FLA1/6 HP
FAN MOTOR115 V0.85FLA1/15 HP
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (°F)
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day )70*860 (390)820 (373)790 (359)
Reference without *marks80765 (346)735 (333)710 (321)
90680 (309)665 (302)635 (2 87)
100610 (277)585 (266)550 (249)
SHAPE OF ICECubelet
ICE QUALITYApprox. 80%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)1230 (4.4)1210 (3.4)
POTABLE WATER80 (12)103 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, Galvanized Steel (Rear)
WEIGHTNet 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRICPermanent - Connection
- WATER SUPPLYInlet 1/2" FPT
- DRAINOutlet 3/4" FPT
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLN/A
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
COMPRESSORHermetic, Model RS70-C1E-PFV
CONDENSERAir-cooled, Fin and tube type
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLThermostatic Expansion Valve
REFRIGERANT CHARGER-404A,1 lb.12oz.(800g)
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTIONHigh Voltage Cut-off Relay
COMPRESSOR PROTECTIONInternal Protector
GEAR MOTOR PROTECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage Bin
OPERATING CONDITIONSVOLTAGE RANGE187-253 V
AMBIENT TEMP.45-100° F
WATER SUPPLY TEMP.45-90° F
WATER SUPPLY PRESSURE10-113 PSIG
DRAWING NO. (DIMENSION)3A0981
We reserve the right to make changes in specifications and design without prior notice.
9
F-1000MWF-C
AC SUPPLY VOLTAGE208-230/60/1 (3 wire with neutral for 115V)
COMPRESSOR240 V4.2 RLA34 LRA
GEAR MOTOR120 V1.6 FLA1/6 HP
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (°F)
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day )70*790 (358)760 (346)750 (340)
Reference without *marks80735 (333)720 (327)710 (322)
90695 (316)*685 (311)670 (304)
100660 (299)645 (294)*600
SHAPE OF ICECubelet
ICE QUALITYApprox. 80%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)1170 (4.1)1160 (3.5)
POTABLE WATER82 (12)95 (12)
WATER-COOLED CONDENSER492 (72)303 (34)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, Galvanized Steel (Rear)
WEIGHTNet 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRICPermanent - Connection
- WATER SUPPLYInlet 1/2" FPT Cond. Inlet 1/2" FPT
- DRAINOutlet 3/4" FPTCond. Outlet 3/8"-18 NPT
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLAutomatic Water Regulator
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
COMPRESSORHermetic, Model RS70-C1E-PFV
CONDENSERWater-cooled, Tube in tube type
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLThermostatic Expansion Valve
REFRIGERANT CHARGER-404A,15oz. (425g)
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTIONHigh Voltage Cut-off Relay
COMPRESSOR PROTECTIONInternal Protector
GEAR MOTOR PROTECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage Bin
OPERATING CONDITIONSVOLTAGE RANGE 187 - 253 V
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESS URE 10 - 113 PSIG
DRAWING NO. (DIMENSION)3A0982
We reserve the right to make changes in specifications and design without prior notice.
10
F-1000MRF-C
(
AC SUPPLY VOLTAGE208-230/60/1 (3 wire with neutral for 115V)
COMPRESSOR240 V4.2 RLA34 LRA
GEAR MOTOR120 V1.6 FLA1/6 HP
FAN MOTOR REMOTE120 V3A MAX
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (°F)
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day )70*840 (381)810 (368)790 (358)
Reference without *marks80765 (347)745 (337)720 (327)
90700 (317)*695 (315)660 (299)
100640 (290)620 (282)575 (261)
SHAPE OF ICECubelet
ICE QUALITYApprox. 80%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)1310 (4.5)1300 (3.7)
POTABLE WATER83 (12)101(12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, Galvanized Steel
WEIGHTNet 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRICPermanent - Conn ection
- WATER SUPPLYInlet 1/2" FPT
- DRAINOutlet 3/4" FPT
- REFRIGERATIONDischarge line 1-1/16-12 UNF Fitting (#10 AEROQUIP)
CIRCUITLiquid line 5/8-18 UNF Fitting (#6 AEROQUIP)
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLN/A
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
COMPRESSORHermetic, Model RS70-C1E-PFV
CONDENSERAir-cooled Remote Condenser unit URC-6F Recommended
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CO NTROLThermostatic Ex p ans i on Valve
Condensing Pressure Regulator on URC-6F
REFRIGERANT CHA RG ER- 40 4A,4 lb.1oz. (1850g)
(Ice Maker: 2 lb. 3 oz., Cond. Unit: 1 lb. 14 oz. )
DESIGN PRESSUREHigh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROT ECTIONHigh Voltage Cut-off Relay
COMPRESSOR PROTECTIONInternal Protector
GEAR MOTO R PR O TECTIONManual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage Bin
OPERATING CONDITIONSVOLTAGE RANGE187-253 V
AMBIENT TEMP.45-100° F
WATER SUPPLY TEMP.45-90° F
WATER SUPPLY PRESSURE10-113 PSIG
DRAWING NO. (DIMENSION)3A0983
Rear)
We reserve the right to make changes in specifications and design without prior notice.
11
F-1000MLF-C
(
)
AC SUPPLY VOLTAGE115/60/1
GEAR MOTOR120 V1.6 FLA1/6 HP
OTHER120 V0.03A
MAXIMUM FUSE SIZE15 A
MAX. HACR BREAKER (USA ONLY)15 A
MAX. CIRC. BREAKER (CANADA ONLY)15 A
MINIMUM CIRCUIT AMPACITY15 A
APPROXIMATE ICE PRODUCTIONAmbientWATER TEMP. (F)
PER 24 HR.Temp. ( F)507090
lbs./day ( kg/day )701020 (463)945 (428)915 (415)
This data is for reference only,80885 (402)860 (390)835 (378)
different condensing unit will vary data.90805 (366)795 (361)760 (344)
100735 (333)710 (323)640 (290)
SHAPE OF ICECubelet
ICE QUALITYApprox. 80%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITYN/A
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)135 (0.40)135 (0.32)
POTABLE WATER95 (12)122 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISHStainless Steel, G alvanized Steel (Rear)
W EIGHTNet 110 lbs. ( 50 kg ), Shipping 137 lbs. ( 62 kg )
CONNECTION S - ELECTRICPermanent - Connectio n
- WATER SUPPLYInlet 1/2" FPT
- DRAINOutlet 3/4" FPT
- REFRIGERATIONOutlet (Vapor) line 1-1/16-12 UNF Fitting (#10 AEROQUIP)
CIRCUITInlet (Liquid) line 5/8-18 UNF Fitting (#6 AEROQUIP)
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROLFloat Switch
COOLING WATER CONTROLN/A
BIN CONTROL SYSTEMMechanical Bin Control ( Proximity Sw. )
CONDENSING UNITRequired refrigeration capacity for ice m a ker is 5700 BTU/h
at discharge pressure 213 PSIG and suction pressure
31.2 PSIG with R-404A refrigerant.
Suction pressure needs to be 31.2 PSIG.
EVAPORATORCopper Tube on C ylinder
REFRIGERANT CONTROLThermostatic Expansion Valve
Evaporator Pressure Regulator
REFRIGERANT CHARGER-404A,3.6 oz. (100g Holding Charge)
DESIGN PRESSUREH igh 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTIONHigh Voltage Cut-off Relay
COMPRESSOR PROTECTIONInternal Protector
GEAR MOTOR PR OTECTIONManual reset Circuit Break er or Fuse
REFRIGERANT CIRCUIT PROTECTIONAuto-reset High Pressure Control Switch
LOW WATER PROTECTIONFloat Switch and Timer
ACCESSORIES -SUPPLIEDSpare Fuse
-REQUIREDIce Storage Bin
OPERATING CONDITIONSVO LTAGE RANGE104-127 V
AMBIENT TEMP.45-100° F
W ATER SUPPLY TEMP.45-90° F
WATER SUPPLY PRESSURE10-113 PSIG
DRAWING NO.
DIMENSION
3A0984
We reserve the right to make changes in specifications and design without prior notice.
12
2. CONDENSER UNIT
URC-6F
13
SPECIFICATIONS
MODEL: URC-6F
EXTERIORGalvanized Steel
DIMENSIONS (W x D x H)21-15/16" x 15-11/16" x 17-7/8"
Note: The above component names are identical with the Wiring Label, but not with
the Parts List.
FUSE
FUSE
(GEAR MOTOR)
19
F-1000MWF, F-1000MRF/-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)
20
F-1000MLF/-C
FLUSH
TIMER
WATER CONTROL
RELAY
TRANSFORMER
CONNECTOR
CIRCUIT PROTECT
RELAY
GEAR MOTOR
PROTECT RELAY
GEAR
MOTOR
CAP.
CONTROL
TIMER
FLUSH
FLUSH
SWITCH
ICE
POWER
SWITCH
FUSE
FUSE
(GEAR MOTOR)
21
III. TECHNICAL INFORMATION
1. WATER CIRCUIT AND REFRIGERATION CIRCUIT
F-1000MAF/-C
22
F-1000MWF/-C
23
F-1000MRF/-C
24
F-1000MLF/-C
25
2. WIRING DIAGRAMS
F-1000MAF/-C, F-1000MWF/-C, F-1000MRF/-C
26
F-1000MLF/-C
27
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.
28
[b] When Reservoir has been filled, Gear Motor starts immediately.
29
[c] Compressor starts about 60 sec. after Gear Motor starts.
30
[d] Bin Control operates, and about 6 sec. later, Compressor and Gear Motor stop
simultaneously.
31
[e] Low Water (Except Water-cooled Model).
32
[f] Low Water (Water-cooled Model), or Dirty Air Filter (Air-cooled Model), Pressure
Switch to “OPEN”, Compressor and Gear Motor operates intermittently.
33
[g] When Flush Switch is moved to “FLUSH” position, Flush Water Valve opens and
flushes Reservoir and Evaporator.
34
[h] When Flush Timer operates (for 15 min. every 12 hours).
35
[i] When 208-230V are supplied to Circuit Protect Relay, it protects the circuit from
miswiring. If the power supply is properly connected, the contact of Circuit Protect
Relay does not move even when the coil is energized.
36
[j] When input voltage is too low, (Less than 70%), Gear Motor Fuse (1.5A) is blown
causing the Compressor and Gear Motor to turn off immediately.
37
4. TIMING CHART
1. CIRCUIT PROTECT
RELAY
2. WATER LEVEL
ON
OFF
UPPER
LOWER
BOTTOM
Miswiring. Circuit Protect Relay operates.)
Proper wiring. The unit starts.
BIN CONTROL
OFF ON
UPPER
3. FLOAT
SWITCH
LOWER
4. WATER CONTROL
RELAY
5. CONTROL WATER
VALVE
6. FLUSH TIMER
7. FLUSH SWITCH
8. FLUSH WATER
VALVE
9. BIN CONTROL
10. GEAR MOTOR
RELAY
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1 - 2
2 - 3
FLUSH
ICE
ON
OFF
ON
OFF
ON
OFF
1 sec
6 sec1 sec
11. GEAR MOTOR
12. FAN MOTOR
13. COMPRESSOR
14. PRESSURE
SWITCH
15. HEATER
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
60 sec
60 sec
38
LOW WATER
FLUSH TIMER
1. CIRCUIT PROTECT
RELAY
2. WATER LEVEL
UPPER
3. FLOAT
SWITCH
LOWER
4. WATER CONTROL
RELAY
5. CONTROL WATER
VALVE
6. FLUSH TIMER
7. FLUSH SWITCH
ON
OFF
UPPER
LOWER
BOTTOM
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1 - 2
2 - 3
FLUSH
ICE
21 min every 12 hr
8. FLUSH WATER
VALVE
9. BIN CONTROL
10. GEAR MOTOR
RELAY
11. GEAR MOTOR
12. FAN MOTOR
13. COMPRESSOR
14. PRESSURE
SWITCH
15. HEATER
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
150 sec
90 sec60 sec90 sec60 sec
1 sec
150 sec
1 sec
39
FLUSH
FLUSH SWITCHPRESSURE SWITCH
ICE
OFFON
1. CIRCUIT PROTECT
RELAY
2. WATER LEVEL
UPPER
3. FLOAT
SWITCH
LOWER
4. WATER CONTROL
RELAY
5. CONTROL WATER
VALVE
6. FLUSH TIMER
7. FLUSH SWITCH
ON
OFF
UPPER
LOWER
BOTTOM
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1 - 2
2 - 3
FLUSH
ICE
8. FLUSH WATER
VALVE
9. BIN CONTROL
10. GEAR MOTOR
RELAY
11. GEAR MOTOR
12. FAN MOTOR
13. COMPRESSOR
14. PRESSURE
SWITCH
15. HEATER
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
150 sec
90 sec60 sec
1 sec
1 sec
60 sec
1 sec
40
5. PERFORMANCE DA TA
F-1000MAF
APPR O XI MATEAmbien tWater Temp . (F )
ICE PRODUCTIONTemp. (F)
PER 24 HR.70970(440)930(422)890(404)
PSIG ( kg/cm²G )
WATER FLOW FOR CONDENSER38 gal/h (AT 90°F /WT 70°F)
PRESSURE DROP OF COOLING WAT ER LINELess than 7 PSIG
HEAT OF REJECTION FROM CONDENSER7110 BTU/h (AT 90°F /WT 70°F)
HEAT OF REJECTION FROM COMPRESSOR1340 BTU/h (AT 90°F /WT 70°F)
100461(2.09)599(2.72)989(4.49)
8023(-5)23(-5)25(-4)
9023(-5)23(-5)25(-4)
80263(18.5)266(18.7)269(18.9)
90263(18.5)266(18.7)269(18.9)
100263(18.5)266(18.7)269(18.9)
8033(2.3)34(2.4)35(2.5)
9033(2.3)34(2.4)35(2.5)
10033(2.3)34(2.4)35(2.5)
507090
Note: The data without *marks should be used for reference.
We reserve the right to make changes in specifications and design without prior notice.
42
F-1000MRF
APPROXIMATEAmbientWater Temp. (F)
ICE PRODUCTIONTemp. (F)
PER 24 HR.70930(422)895(407)865(393)
PSIG ( kg/cm²G )
CONDENSER VOLUME74.5 cu in
HEAT OF REJECTION FROM CONDENSER7660 BTU/h (AT 90°F /WT 70°F)
HEAT OF REJECTION FROM COMPRESSOR1380 BTU/h (AT 90°F /WT 70°F)
10081(306)78(296)73(274)
8025(-4)26(-3)26(-3)
9026(-3)27(-3)28(-2)
80239(16.8)239(16.8)239(16.8)
90256(18.0)256(18.0)256(18.0)
100295(20.7)295(20.7)295(20.7)
8035(2.4)35(2.4)35(2.4)
9036(2.5)36(2.5)36(2.5)
10039(2.7)39(2.7)39(2.7)
507090
Note: The data without *marks should be used for reference.
We reserve the right to make changes in specifications and design without prior notice.
43
F-1000MLF
APPROXIMATEAmbientWater Temp. (°F)
ICE PRODUCTIONTemp. (°F)
PER 24 HR.701150(522)1035(469)1005(456)
PSIG ( kg/cm²G )
WATER FLOW FOR CONDENSER40 gal/h (AT 90°F /WT 70°F)
PRESSURE DROP OF COOLING WAT ER LINELess than 7 PSIG
HEAT OF REJECTION FROM CONDENSER7110 BTU/h (AT 90°F /WT 70°F)
HEAT OF REJECTION FROM COMPRESSOR1340 BTU/h (AT 90°F /WT 70°F)
100442(2.01)598(2.72)1032(4.69)
8023(-5)23(-5)25(-4)
9023(-5)23(-5)25(-4)
80263(18.5)266(18.7)269(18.9)
90263(18.5)266(18.7)269(18.9)
100263(18.5)266(18.7)269(18.9)
8033(2.3)34(2.4)35(2.5)
9033(2.3)34(2.4)35(2.5)
10033(2.3)34(2.4)35(2.5)
507090
Note: The data without *marks should be used for reference.
We reserve the right to make changes in specifications and design without prior notice.
46
F-1000MRF-C
APPROXIMA TEAmbientWater Temp. (F)
ICE PRODUCTIONTemp. (F)
PER 24 HR.70840(381)810(368)790(358)
PSIG ( kg/cm²G )
CONDENSER VOLUME74.5 cu in
HEAT OF REJECTION FROM CONDENSER7840 BTU/h (AT 90°F /WT 70°F)
HEAT OF REJECTION FROM COMPRESSOR1400 BTU/h (AT 90°F /WT 70°F)
10077(290)75(282)69(261)
8025(-4)26(-3)26(-3)
9026(-3)25(-4)28(-2)
80238(16.7)238(16.7)238(16.7)
90256(18.0)256(18.0)256(18.0)
100295(20.7)295(20.7)295(20.7)
8036(2.5)36(2.5)36(2.5)
9037(2.6)37(2.6)37(2.6)
10040(2.8)40(2.8)40(2.8)
507090
Note: The data without *marks should be used for reference.
We reserve the right to make changes in specifications and design without prior notice.
47
F-1000MLF-C
APPROXIMATEAmbientWater Temp. (°F)
ICE PRODUCTIONTemp. (°F)
PER 24 HR.701020(463)945(428)915(415)
Note: The data without *marks should be used for reference.
This data is for reference only, different condensing unit will vary data.
We reserve the right to make changes in specifications and design without prior notice.
48
IV. ADJUSTMENT OF COMPONENTS
1. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED
MODEL ONLY
The Water Regulating Valve also called “WATER REGULATOR” is factory-adjusted. No
adjustment is required under normal use. Adjust the Water Regulator , if necessary, using
the following procedures.
1) Attach a pressure gauge to the high-side line of the system. Or prepare a thermometer
to check the condenser drain temperature.
2) Rotate the Adjustment Screw by using a flat blade screwdriver, so that the pressure
gauge shows 260 PSIG (R-404A models/-F type), or the thermometer reads 100 -104°F,
in 5 minutes after the icemaking process starts. When the pressure exceeds 260 PSIG,
or the condenser drain temperature exceeds 104°F, rotate the Adjustment Screw
counterclockwise.
3) Check that the pressure or the condenser drain temperature holds a stable setting.
Adjustment Screw
CW
CCW
Bottom View
CW - Higher
CCW - Lower
Adjustment Screw
49
V. SERVICE DIAGNOSIS
1. NO ICE PRODUCTION
PROBLEMPOSSIBLE CAUSEREMEDY
[1] The icemaker will
not start.
[2] Water flow does not
stop, and the
icemaker will not
start
[3] Water has been
supplied, but the
icemaker will not
start.
a) Power Supply1.OFF position.1.Move to ON position.
b) Power Switch
(Control Box)
c)Fuse (Control Box)1.Blown out.1. Check for short circuit
d) Circuit Protect Relay1.Miswiring.1.Check power supply
e) Flush Timer1.Flushing out.1.Wait for 15 minutes.
f)Flush Switch1. FLUSH position.1.Move to ICE position.
g) Transformer1.Coil winding opened.1.Replace.
h) Control Water Valve1.Coil winding opened.1.Replace.
i)Shut-off Valve1.Closed.1.Open.
j)Plug and Receptacle
(Control Box)
a) Water Control Relay1.Contact fused.1.Replace.
b) Float Switch1.Bad contacts.1.Check for continuity
c)Flush Water Valve1.Valve seat clogged
d) Hoses1.Disconnected.1.Connect.
a) Water Control Relay1.Bad contacts.1.Check for continuity
b)
Bin Control1.Bad contacts.1.Check for continuity
c)Gear Motor Relay1.Coil winding opened.1.Replace.
d) Control Timer
(Printed Circuit
Board)
e) Gear Motor Protect
Relay
2.Loose connection.2.Tighten.
3.Bad contacts.3.Check for continuity
4.Blown fuse.4.Replace.
1.Off position.1.Move to ON position.
2.Bad contacts.2.Check for continuity
2.Bad contacts.2.Check for continuity
2.Bad contacts.2.Check for continuity
2.Water failure.2. Wait till water is
1.Disconnected.1.Connect.
2.Terminal out of Plug
or Receptacle.
2.Coil winding opened.2.Replace.
2.Float does not move
freely.
and water leaking.
2.Activator does not
move freely.
2.bad contacts.2. Check for continuity
1.Broken.1.Replace.
1.Coil winding opened.1.Replace.
2.Bad contacts.2.Check for continuity
and replace.
and replace.
and replace.
voltage and wire
properly.
and replace.
and replace.
supplied.
2.Insert Terminal back in
position
and replace.
2.Clean or replace.
1.Clean or replace
and replace.
and replace.
2.Clean Axle and its
corresponding holes
or replace Bin Control.
and replace.
and replace.
50
PROBLEMPOSSIBLE CAUSEREMEDY
[4] Water has been
supplied, Fan Motor
starts, but Gear
Motor and
Compressor will not
start.
[5] Gear Motor and
Compressor start
but operate
intermittently.
[6] Gear Motor starts,
but Compressor will
not start or operates
intermittently.
a) Gear Motor Fuse
(BUSSMAN GMD
1.5A)
b) Thermal Protector
(Gear Motor)
a) Pressure Switch1.Dirty Air Filter or
a) X2 Relay on Control
Timer
b) Starter1.Bad contacts.1.Check for continuity
c)Start Capacitor or
Run Capacitor
d) Compressor1.Loose connections.1.Tighten.
1.Blown Fuse.1.See "3. [3]." Find out
1.Bad contacts.1.Check for continuity
Condenser.
2.Ambient or
condenser water
temperature too
warm.
3.Condenser water
pressure too low or
off. (Water-cooled
model only)
4.Water Regulating
Valve set too high.
(Water-cooled model
only)
5.Fan not rotating.5.See "3. [1] a) Fan
6.Refrigerant
overcharged.
7.Refrigerant line or
components
plugged.
8.Bad contacts.8.Check for continuity
9.Loose connections.9.Tighten.
1.Bad contacts.1.Replace.Check for
2.Coil winding opened.2. Replace Timer.
2.Coil winding opened.2. Replace.
3.Loose Connections.3.Tighten.
1.Defective.1.Replace.
the cause and replace
the Fuse.
and replace.
1.Clean.
2.Get cooler.
3.Check and get
recommended
pressure.
4.Adjust it lower.
Motor."
6.Recharge.
7.Clean and replace
drier.
and replace.
continuity and replace.
and replace.
[7] Gear Motor and
Compressor start,
but no ice is
produced.
2.Motor winding
opened or grounded.
3.Motor Protector
tripped.
e) Power Supply1.Circuit Ampacity too
low.
a) Refrigerant Line1.Gas leaks.1.Check for leaks with a
2.Refrigerant line
clogged.
2.Replace.
3.Find out the cause of
overheat or
overcurrent.
1.Install a larger-sized
conductor.
leak detector. Reweld
leak, replace drier and
charge with
refrigerant. The
amount of refrigerant
is marked on
Nameplate or Label.
2.Replace the clogged
component.
51
2. LOW ICE PRODUCTION
PROBLEMPOSSIBLE CAUSEREMEDY
[1] Low ice productiona) Refrigerant Line1.Gas leaks.1. See "1. [5] a)
2. Refrigerant line
clogged.
3. Overcharged.3. Recharge.
b) High-side Pressure
Too High
c) Expansion Valve
(not adjustable)
1. Dirty Air Filter or
Condenser.
2. Ambient or
condenser water
temperature too
warm.
3. Condenser water
pressure too low or
off. [Water-cooled
model only]
4. Fan rotating too
slow.
5. Water Regulating
Valve clogged.
[Water-cooled model
only]
6. Condensing unit out
of order.
1. Low-side pressure
too low.
2. Low-side pressure
too high.
Refrigerant Line."
2. Replace the clogged
component.
1. Clean.
2. Get cooler.
3. Check and get
recommended
pressure.
4. See "3 [1] a) Fan
Motor."
5. Clean.
6. Check condensing
unit.
1. Replace.
2. See if Expansion
Valve Bulb is mounted
properly, and replace
the valve if necessary.
52
3. OTHERS
PROBLEMPOSSIBLE CAUSEREMEDY
[1] Abnormal noisea) Fan Motor1.Bearing worn out.1.Replace.
2. Fan blade deformed. 2.Replace fan blade.
[2] Overflow from
Reservoir (Water
does not stop.)
[3] Gear Motor Fuse
blown frequently.
3. Fan blade does not
move freely.
b) Compressor1. Bearings worn out,
or cylinder valve
broken.
2. Mounting pad out of
position.
c) Refrigerant Lines1. Rub or touch lines or
other surfaces.
d) Gear Motor (Ice
Making)
e) Evaporator1.Too much pressure
a) Water Supply1. Water pressure too
b) Control Water Valve1. Diaphragm does not
c) Float Switch1. Bad contacts.1. Check for continuity
a) Power Supply
Voltage
b) Ice Making Unit1. Bearings or Auger
c) Bin Control1.Bad contacts.1. Check for continuity
1. Bearing or Gear
worn out / damaged.
loss.
2. Scale on inside wall
of Freezing Cylinder.
high.
close.
1. Too high or too low.1. Connect the unit to a
worn out.
2. Activator does not
move freely.
3. Replace.
1. Replace.
2. Reinstall.
1. Replace.
1. Replace.
1. Replace.
2. Remove Auger. Use
"SCALE AWAY" or
"LIME-A-WAY"
solution to clean
periodically. If the
water is found hard by
testing, install a
softener.
1. Install a pressure
Reducing Valve
1. Clean or replace.
and replace.
power supply of
proper voltage.
1. Replace Bearing or
Auger.
and replace.
2. Clean Axle and its
corresponding holes
or replace Bin Control.
53
VI. REMOVAL AND REPLACEMENT OF COMPONENTS
IMPORTANT
Ensure all components, fasteners and thumbscrews are securely in place
after the equipment is serviced.
IMPORTANT
1. The Polyol Ester (POE) oils used in R-404A units can absorb moisture
quickly. Therefore it is important to prevent moisture from entering the
system when replacing or servicing parts.
2. Always install a new filter drier every time the sealed refrigeration system is opened.
3. Do not leave the system open for longer than 15 minutes when replacing or servicing parts.
1. SERVICE FOR REFRIGERANT LINES
[a] REFRIGERANT RECOVERY [EXCEPT F-1000MLF(-C)]
The icemaker unit is provided with two Refrigerant Access Valves - one on the low-side
and one on the high-side line. Using proper refrigerant practices recover the refrigerant
from the Access Valves and store it in an approved container. Do not discharge the refrigerant into the atmosphere.
[b] REFRIGERANT RECOVERY [F-1000MLF ONLY]
The refrigerant charge on the F-1000MLF is provided from the external Compressor Rack
Assembly. In the event that service is required on the F-1000MLF, close the Suction and
Liquid Line Shut-off Valves located at the rear of the unit. Attach the Service Manifold
Hoses to the High-side, Low-side and Evaporator Pressure Regulator (E.P.R.) access ports
to purge or evacuate the unit. To recharge the system, simply open the Suction and Liquid
Line Shut-off Valves after evacuating the F-1000MLF.
[c] EVACUATION AND RECHARGE [R-404A]
1) Attach Charging Hoses, a Service Manifold and a Vacuum Pump to the system. Be
sure to connect Charging Hoses to both High-side and Low-side Access Valves.
IMPORTANT
The vacuum level and vacuum pump may be the same as those for current
refrigerants. However, the rubber hose and gauge manifold to be used for
evacuation and refrigerant charge should be exclusively for POE oils.
54
2) Turn on the Vacuum Pump. Never allow the oil in the Vacuum Pump to flow backward.
3) Allow the Vacuum Pump to pull down to a 29.9" Hg vacuum. Evacuating period depends on pump capacity.
4) Close the Low-side Valve and High-side Valve on the Service Manifold.
5) Disconnect the Vacuum Pump, and attach a Refrigerant Service Cylinder to the
High-side line. Remember to loosen the connection, and purge the air from the
Hose. See the Nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard
No. 700-88 be used.
6) A liquid charge is recommended for charging an R-404A system. Invert the Service
Cylinder. Open the High-side, service manifold Valve.
7) Allow the system to charge with liquid until the pressures balance.
8) If necessary, add any remaining charge to the system through the Low-side. Use a
throttling valve or liquid dispensing device to add the remaining liquid charge
through the Low-side access port with the unit running.
9) Close the two Refrigerant Access Valves, and disconnect the Hoses and Service
Manifold.
10) Cap the Access Valves to prevent a possible leak.
2. BRAZING
DANGER
1. Refrigerant R-404A itself is not flammable at atmospheric pressure and
temperatures up to 176° F.
2. Refrigerant R-404A itself is not explosive or poisonous. However, when
exposed to high temperatures (open flames) R-404A can be decomposed to form hydrofluoric acid and carbonyl fluoride both of which are
hazardous.
3. Always recover the refrigerant and store it in an approved container. Do
not discharge the refrigerant into the atmosphere.
4. Do not use silver alloy or copper alloy containing Arsenic.
5. Do not use R-404A as a mixture with pressurized air for leak testing.
Refrigerant leaks can be detected by charging the unit with a little refrigerant, raising the pressure with nitrogen and using an electronic leak
detector.
55
3. REMOVAL AND REPLACEMENT OF COMPRESSOR
IMPORTANT
Always install a new Drier every time the sealed refrigeration system is
opened. Do not replace the Drier until after all other repairs or replacement
have been made.
1) Turn off the power supply, and remove the panels.
2) Remove the Terminal Cover on the Compressor, and disconnect the Compressor
Wiring.
3) Recover the refrigerant and store it in an approved container, if required by an applicable
law.
4) Remove the Discharge, Suction and Access Pipes from the Compressor using brazing
equipment.
WARNING
When repairing a refrigerant system, be careful not to let the burner flame
contact any electrical wires or insulation.
5) Remove the Bolts and Rubber Grommets.
6) Slide and remove the Compressor. Unpack the new Compressor package. Install the
new Compressor.
7) Attach the Rubber Grommets of the prior Compressor.
8) Sandpaper the Discharge, Suction and Access Pipes.
9) Place the Compressor in position, and secure it using the Bolts.
10) Remove plugs from the Discharge, Suction and Access Pipes.
11) Braze the Access, Suction and Discharge lines (Do not change this order), while purging
with nitrogen gas flowing at the pressure of 3-4 PSIG.
12) Install the new Drier.
13) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
56
14) Evacuate the system, and charge it with refrigerant. For the air-cooled and water-cooled
models, see the Nameplate for the required refrigerant charge and type. For the remote
air-cooled models, see the label on the Control Box.
15) Connect the Terminals to the Compressor, and replace the Terminal Cover in its correct
position.
16) Replace the panels in their correct position, and turn on the power supply.
4. REMOVAL AND REPLACEMENT OF DRIER
IMPORTANT
Always install a new Drier every time the sealed refrigeration system is
opened. Do not replace the Drier until after all other repairs or replacement
have been made.
1) Turn off the power supply, and remove the panels.
2) Recover the refrigerant and store it in an approved container, if required by an applicable
law.
3) Remove the Drier using brazing equipment.
4) Install the new Drier with the arrow on the Drier in the direction of the refrigerant flow.
Use nitrogen gas at the pressure of 3-4 PSIG when brazing the tubings.
5) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
6) Evacuate the system, and charge it with refrigerant. For the air-cooled and water-cooled
models, see the Nameplate for the required refrigerant charge and type. For the remote
air-cooled models, see the label on the Control Box.
7) Replace the panels in their correct position, and turn on the power supply.
57
5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE
IMPORTANT
Sometimes moisture in the refrigerant circuit exceeds the Drier capacity and
freezes up at the Expansion Valve. Always install a new Drier every time the
sealed refrigeration system is opened. Do not replace the Drier until after all
other repairs or replacement have been made.
1) Turn off the power supply, and remove the panels.
2) Recover the refrigerant and store it in an approved container, if required by an applicable
law.
3) Remove the Expansion Valve Bulb at the Evaporator outlet.
4) Remove the Expansion Valve Cover, and remove the Expansion Valve using brazing
equipment.
5) Braze the new Expansion Valve with nitrogen gas flowing at the pressure of 3-4 PSIG.
WARNING
Always protect the valve body by using a damp cloth to prevent the valve from
overheating. Do not braze with the valve body exceeding 250°F.
6) Install the new Drier.
7) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
8) Evacuate the system. Charge it with refrigerant. For the air-cooled and water-cooled
models, see the Nameplate for the required refrigerant charge and type. For the remote
air-cooled models, see the label on the Control Box.
9) Attach the Bulb to the suction line. Be sure to secure the Bulb using a band and to
insulate it.
10) Place the new set of Expansion Valve Covers in position.
11) Replace the panels in their correct position, and turn on the power supply.
58
6. REMOVAL AND REPLACEMENT OF WATER REGULATING VALVE WATER-COOLED MODEL ONLY
IMPORTANT
Always install a new Drier every time the sealed refrigeration system is
opened. Do not replace the Drier until after all other repairs or replacement
have been made.
1) Turn off the power supply, remove the panels and close the Water Supply Line Shutoff Valve.
2) Recover the refrigerant and store it in an approved container.
3) Disconnect the Capillary Tube using brazing equipment.
4) Disconnect the Flare-connections of the valve.
5) Remove the screws and the valve from the Bracket.
6) Install the new valve, and braze the Capillary Tube.
7) Install the new Drier.
8) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
9) Connect the Flare-connections.
10) Evacuate the system, and charge it with refrigerant. See the Nameplate for the required
refrigerant charge and type.
11) Open the Water Supply Line Shut-off Valve, and turn on the power supply.
12) Check for water leaks.
13) See “IV. 1. ADJUSTMENT OF WATER REGULATING VALVE.” If necessary, adjust
the valve.
14) Replace the panels in their correct position.
59
7. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE
REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLY
IMPORTANT
Always install a new Drier every time the sealed refrigeration system is
opened. Do not replace the Drier until after all other repairs or replacement
have been made.
1) Turn off the power supply.
2) Remove the panels from the remote condenser unit.
3) Recover the refrigerant and store it in an approved container.
4) Remove the C.P.R. using brazing equipment.
5) Braze the new C.P.R. with nitrogen gas flowing at the pressure of 3 - 4 PSIG.
WARNING
Always protect the C.P.R. body by using a damp cloth to prevent the C.P.R.
from overheating. Do not braze with the C.P.R. body exceeding 250°F.
6) Install the new Drier in the icemaker.
7) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
8) Evacuate the system and
charge it with refrigerant.
See the label on the Control
Box in the icemaker.
9) Replace the panels in their
correct position.
10) Turn on the power supply.
60
8. REMOVAL AND REPLACEMENT OF EVAPORATOR ASSEMBLY
1) Turn off the power supply.
2) Remove the panels.
3) Move the Flush Switch to the "FLUSH" position.
4) Turn on the power supply and drain out all water from the water line.
5) Turn off the power supply.
6) Remove the Band connecting the Spout with the Chute Assembly.
7) Remove the three Thumbscrews and take off the Spout from the Evaporator.
CUTTER
8) Remove the Bolt and lift off the Cutter.
9) Remove the Rubber O-ring and the Nylon Ring at the top of the Evaporator.
EXTRUDING HEAD
10) Remove the four Socket Head Cap Screws and lift off the Extruding Head.
11) Replace the Bearing inside the Extruding Head, if it exceeds the wear tolerance of 0.02"
or is scratched.
Note: Replacing the Bearing requires a bearing press adaptor. If it is not available,
replace the whole Extruding Head.
AUGER
12) Lift off the Auger. If the area in contact with the Bearing is worn out or the Blade
scratched, replace the Auger.
EVAPORATOR
Note: Skip the following steps 13) through 15) when the Evaporator does not need
replacement.
61
13) Recover the refrigerant and store it in an approved container, if required by an applicable
law.
IMPORTANT
Always install a new Drier every time the sealed refrigeration system is
opened. Do not replace the Drier until after all other repairs or replacement
have been made.
14) Remove the Bulb of the Expansion Valve.
15) Disconnect the brazing-connections of the Expansion Valve and the Copper Tube - Low
Side from the Evaporator, using brazing equipment.
16) Remove the two Truss Head Machine Screws and the Strap securing the Evaporator.
17) Disconnect the three Hoses from the Evaporator.
18) Remove the four Socket Head Cap Screws securing the Evaporator with the BearingLower.
19) Lift off the Evaporator.
BEARING-LOWER AND MECHANICAL SEAL
20) The Mechanical Seal consists of two parts. One moves along with the Auger, and the
other is fixed on the Bearing-Lower. If the contact surfaces of these two parts are worn
or scratched, the Mechanical Seal may cause water leaks and should be replaced.
21) Remove the O-ring on the Bearing-Lower.
22) Remove the four Bolts and the Bearing-Lower from the Gear Motor. Replace the
Bearing inside the Bearing-Lower, if it exceeds the wear tolerance of 0.02" or is
scratched.
Note: Replacing the Bearing requires a bearing press adaptor. If it is not available,
replace the whole Bearing-Lower.
GEAR MOTOR
23) Remove the Coupling-Spline on the Gear Motor Shaft.
24) Remove the Barrier on the top of the Gear Motor.
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25) Remove the three Socket Head Cap Screws securing the Gear Motor.
26) Assemble the removed parts in the reverse order of the above procedure.
WARNING
Be careful not to scratch the surface of the O-ring, or it may cause water leaks.
Handle the Mechanical Seal with care not to scratch nor to contaminate its
contact surface.
27) When replacing the Evaporator;
(a) Braze the new Evaporator with nitrogen gas flowing at the pressure of 3-4 PSIG.
(b) Replace the Drier.
(c) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
(d) Evacuate the system. Charge it with refrigerant. For the air-cooled and water-
cooled models, see the Nameplate for required refrigerant charge and type. For
the remote air-cooled models, see the label on the Control Box.
28) Move the Flush Switch to the “ICE” position.
29) Replace the panels in their correct position.
30) Turn on the power supply.
63
Rubber O-ring
Nylon Ring
Bolt
Washer
Auger
Mechanical
Seal
O-ring
Bearing
- Lower
Cutter
Extruding
Head
Washer
Socket Head
Cap Screw
Evaporator
Bolt
Washer
Coupling
- Spline
Washer
Socket Head
Cap Screw
Barrier
Gear Motor
64
9. REMOVAL AND REPLACEMENT OF F AN MOT O R
1) Turn off the power supply and remove the panels.
2) Remove the wire connectors from the Fan Motor leads.
3) Remove the Fan Motor Bracket and Fan Motor.
4) Install the new Fan Motor.
5) Replace the Fan Motor Bracket and the wire connectors.
6) Replace the panels in their correct position, and turn on the power supply.
10. REMOV AL AND REPLACEMENT OF CONTROL WA TER VAL VE
1) Turn off the power supply, remove the panels and close the Water Supply Line Shutoff Valve.
2) Disconnect the Terminals from the Control Water Valve.
3) Loosen the Fitting Nut on the Control Water Valve Inlets, and remove the Control Water
Valve. Do not lose the Packings inside the Fitting Nut.
4) Remove the Water Supply Hose from the Control Water Valve.
5) Install the new Control Water Valve.
6) Assemble the removed parts in the reverse order of the above procedure.
7) Open the Water Supply Line Shut-off Valve.
8) Check for water leaks.
9) Replace the panels in their correct position, and turn on the power supply.
65
1 1. REMOVAL AND REPLACEMENT OF FLUSH WATER VALVE
1) Turn off the power supply, remove the panels and close the Water Supply Line Shutoff Valve.
2) Remove the Clamp and disconnect the Hose from the Flush Water Valve.
Note: Water may still remain inside the Evaporator. Be sure to drain the water into the
Drain Pan.
3) Disconnect the Terminals from the Flush Water Valve.
4) Remove the Flush Water Valve from the Bracket.
5) Remove the Drain Pipe from the Flush Water Valve.
6) Connect the Drain Pipe to the new Flush Water Valve, and place the valve in position.
7) Connect the Hose to the Flush Water Valve and secure it with the Clamp.
8) Pour water into the Reservoir, and check for water leaks on the Flush Water Valve.
9) Open the Water Supply Line Shut-off Valve, and turn on the power supply.
10) Move the Flush Switch to the “ICE” position.
11) Check for water leaks.
12) Move the Flush Switch to the “FLUSH” position, and make sure water is flushing.
13) Move the Flush Switch to the “ICE” position.
14) Replace the panels in their correct position.
66
VII. MAINTENANCE AND CLEANING INSTRUCTIONS
IMPORTANT
Ensure all components, fasteners and thumbscrews are securely in place after
any maintenance or cleaning is done to the equipment.
1. PREPARING THE ICEMAKER FOR LONG STORAGE
W ARNING
When shutting off the icemaker for an extended time, drain out all water from the
water line and remove the ice from the Storage Bin. The Storage Bin should be
cleaned and dried. Drain the icemaker to prevent damage to the water supply
line at sub-freezing temperatures, using air or carbon dioxide. Shut off the
icemaker until the proper ambient temperature is resumed.
[Air-cooled and Remote Air-cooled Models]
1) Run the icemaker with the Water Supply Line Shut-off Valve closed.
2) Open the Drain Valve and blow out the water inlet line by using air pressure.
3) Turn off the power supply.
4) Remove the Front Panel.
5) Move the Flush Switch on the Control Box to the
“FLUSH” position.
6) Turn on the power supply, and then drain out all
water from the water line.
7) Turn off the power supply.
8) Turn off the Power Switch on the Control Box.
9) Replace the Front Panel in its correct position.
10) Close the Drain Valve.
11) Remove all ice from the Storage Bin, and clean the bin.
67
[Water-cooled Models]
1) Turn off the power supply and wait for 3 minutes.
2) Turn on the power supply and wait for 20 seconds.
3) Close the Water Supply Line Shut-off Valve.
4) Open the Drain Valve and quickly blow the water supply line from the Drain Valve to drain
water in the Condenser.
5) Follow the above steps 3) through 11) in [Air-cooled and Remote Air-cooled Models].
68
2. CLEANING INSTRUCTIONS
IMPORTANT
Ensure all components, fasteners and thumbscrews are securely in place after
any maintenance or cleaning is done to the equipment.
1. HOSHIZAKI recommends cleaning this unit at least once a year. More
frequent cleaning, however, may be required in some existing water
conditions.
2. To prevent injury to individuals and damage to the icemaker, do not use
ammonia type cleaners.
3. Always wear liquid-proof gloves for safe handling of the cleaning and
sanitizing solution. This will prevent irritation in case the solution comes
into contact with skin.
W ARNING
<STEP 1>
Dilute the solutions with water as follows.
Cleaning solution: 4.8 fl. oz. of recommended cleaner Hoshizaki “Scale Away” or
“LIME-A-WAY” (Economics Laboratory, Inc.) with 0.8 gal. of water.
This is a minimum amount. Make more solution, if necessary.
Sanitizing solution:2.5 fl. oz. of a 5.25% sodium hypochlorite solution (chlorine bleach)
with 5 gal. of water.
IMPORTANT
For safety and maximum effectiveness, use the solution immediately after
dilution.
<STEP 2>
Use the cleaning solution to remove lime deposits in the water system.
1) Turn off the power supply.
2) Close the Water Supply Line Shut-off Valve.
3) Remove all ice from the Storage Bin.
4) Remove the Front Panel and the Top Panel.
5) Move the Flush Switch to the “FLUSH” position.
69
6) Turn on the power supply and drain out all water from the water line.
7) Turn off the power supply.
8) Remove the Control Water Valve by releasing the Fitting Nut. Do not lose the Packing.
9) Remove the Cover of the Reservoir.
10) Fill the Reservoir with the cleaning solution.
11) Replace the Cover of the Reservoir and the Control Water Valve in their correct position.
Note: This unit is designed to start operating when the Reservoir is filled with water.
12) Move the Flush Switch to the “ICE” position.
13) Replace the Top Panel and the Front Panel in their correct position.
14) Allow the icemaker to set for about 10 minutes before the operation. Then, turn on the
power supply, and make ice using the solution until the icemaker stops icemaking.
15) Remove the Front Panel.
16) Move the Flush Switch to the “FLUSH” position to drain the cleaning solution.
17) Move the Flush Switch to the “ICE” position.
18) Replace the Front Panel in its correct position.
19) Open the Water Supply Line Shut-off Valve, and supply water to the Reservoir.
20) Turn off the power supply when the Gear Motor starts.
21) Drain out all water from the water line. See 4) through 7).
<STEP 3>
Use 3/4 gal. of the sanitizing solution to sanitize the icemaker.
1) Close the Water Supply Line Shut-off Valve.
2) Remove the Control Water Valve by releasing the Fitting Nut.
3) Remove the Cover of the Reservoir.
4) Fill the Reservoir with the sanitizing solution.
70
5) Replace the Cover of the Reservoir and the Control Water Valve in their correct position.
6) Move the Flush Switch to the “ICE” position.
7) Replace the Top Panel and the Front Panel in their correct position.
8) Allow the icemaker to set for about 10 minutes before the operation. Then, turn on the
power supply, and make ice using the solution until the icemaker stops icemaking.
9) Remove the Front Panel.
10) Move the Flush Switch to the “FLUSH” position to drain the sanitizing solution.
11) Move the Flush Switch to the “ICE” position.
12) Replace the Front Panel in its correct position.
13) Open the Water Supply Line Shut-off Valve, and supply water to the Reservoir.
14) Turn off the power supply when the Gear Motor starts.
15) Drain out all water from the water line. See 4) through 7) in STEP 2.
16) Move the Flush Switch to the “ICE” position.
<STEP 4>
Use the sanitizing solution to sanitize removed parts.
1) Remove the Thumbscrew securing the Bin Control Switch on the Chute Assembly.
2) Remove the Band connecting the Spout with the Chute Assembly, and take out the
Chute Assembly from the icemaker.
3) Remove the Gasket at the bottom of the Ice Chute and another at the Spout.
4) Remove the three Ties and the Insulation of the Chute.
5) Remove the six Wing Nuts and two Baffles.
IMPORTANT
When installing the Baffles, make sure that the bent surface (the one without
the studs) faces the Activator so that the bent surface can guide the ice to the
center of the Activator.
71
6) Remove the two Thumbscrews, Plate, and Gasket at the top of the Ice Chute, and then
remove the Bin Control Assembly by sliding it slightly toward the Spout and lifting it off.
7) Disassemble the Bin Control Assembly by removing the two Snap Pins, Shaft and
Activator.
8) Remove the three Thumbscrews and the Spout.
9) Remove the Rubber O-ring and Nylon Ring at the top of the Cylinder.
10) Soak or wipe the removed parts.
11) Rinse these parts thoroughly.
IMPORTANT
If the solution is left on these parts, they will rust.
12) Replace the removed parts and the panels.
13) Turn on the power supply and run the icemaker.
14) Turn off the power supply after 30 minutes.
15) Pour warm water into the Storage Bin to melt all ice, and then clean the Bin Liner with
the solution.
16) Flush out any solution from the Storage Bin.
17) Turn on the power supply and start the automatic icemaking process.
IMPORTANT
1. After cleaning, do not use ice made from the sanitizing solution. Be careful
not to leave any solution in the Storage Bin.
2. Follow carefully any instructions provided with the bottles of cleaning or
sanitizing solution.
3. Never run the icemaker when the Reservoir is empty.
72
3. MAINTENANCE
1. This icemaker must be maintained individually, referring to the instruction
manual and labels provided with the icemaker.
2. To have the optimum performance of this icemaker, the following consumable
parts need periodic inspection, maintenance and replacement:
These parts should be inspected at least once a year or every 10,000 hours
of operation. Their service life, however, depends on water quality and
environment. More frequent inspection and maintenance are recommended.
IMPORTANT
Extruding Head
Housing
Gear Motor
Auger
Mechanical Seal
Consult with your local distributor about inspection and maintenance
service. To obtain the name and phone number of your local distributor, call
Hoshizaki Technical Support at 1-800-233-1940.
1) Stainless Steel Exterior
To prevent corrosion, wipe the exterior occasionally with a clean and soft cloth. Use
a damp cloth containing a neutral cleaner to wipe off oil or dirt build up.
2) Storage Bin and Scoop
• Wash your hands before removing ice. Use the plastic scoop provided (Bin
accessory).
• The Storage Bin is for ice use only. Do not store anything else in the bin.
• Keep the scoop clean. Clean using a neutral cleaner and rinse thoroughly.
• Clean the bin liner using a neutral cleaner. Rinse thoroughly after cleaning. Wash
your hands before removing ice. Use the plastic scoop provided (Bin accessory).
73
3) Air Filter (Air-cooled model only)
A plastic mesh air filter removes dirt or dust from the air, and keeps the Condenser
from getting clogged. As the filter gets clogged, the icemaker’s performance will be
reduced. Check the filter at least twice a month. When clogged, use warm water and
a neutral cleaner to wash the filter.
4) Condenser (Except water-cooled model)
Check the Condenser once a year, and clean if required by using a brush or vacuum
cleaner. More frequent cleaning may be required depending on the location of the
icemaker.
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