Résumé du contenu de la page N° 4
I. Specifications 1. F-450MAH AC SUPPLY VOLTAGE 115/60/1 COMPRESSOR 120 V 8.5 RLA 51 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP FAN MOTOR 115 V 0.85FLA 50W 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 AMPACITY 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *476 (216) 456 (207) 435 (197) Reference without *marks 80 416 (189) 397 (180) 379 (172) 90 36
Résumé du contenu de la page N° 5
2. F-450MAH-C AC SUPPLY VOLTAGE 115/60/1 COMPRESSOR 120 V 8.5 RLA 51 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP FAN MOTOR 115 V 0.85FLA 50W 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 AMPACITY 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *426 (193) 407 (185) 387 (176) Reference without *marks 80 368 (167) 350 (159) 333 (151) 90 317 (144) *310 (14
Résumé du contenu de la page N° 6
II. General Information 1. Construction Water Supply Control Water Valve Inlet Bin Control Junction Box Ice Chute Condenser Evaporator Fan Motor Flush Water Valve Compressor Control Box Drier Gear Motor 6
Résumé du contenu de la page N° 7
2. Control Box Layout Note: The above component names are identical with the wiring label, but not with the parts list. 7
Résumé du contenu de la page N° 8
3. Timer Board [a] Solid-State Control 1) A HOSHIZAKI exclusive solid-state control is employed in the self-contained flaker icemakers. 2) A printed circuit board (hereafter called “timer board”) includes a stable and high quality control system. 3) All models are pre-tested and factory-adjusted. [b] Timer Board CAUTION 1. Fragile, handle very carefully. 2. A timer board contains CMOS (Complementary Metal-Oxide Semicon- ductor) integrated circuits, which are susceptible to failure due to static
Résumé du contenu de la page N° 9
Fig. 1 [c] Sequence Fig. 2 9
Résumé du contenu de la page N° 10
P1 ART CODE 437305-0 M1 ODEL H2AA144C0 Rz ATING 24 VAC 50/60H T. 1 60±15 sec T. 2 90±22 sec T. 3 150±45 sec Ts 4 1 sec. or les T% 5 6.7 sec. ± 70 T% 6 6.7 sec. ± 70 Fig. 3 10
Résumé du contenu de la page N° 11
Functions of Terminals 1) Terminals 1, 2 Power supply AC 24V. 2) Terminals 3, 4 1 (GM) and X2 (CM) Relays. Control X When closed, energize X1 (GM) in 1 sec. and X2 (CM) in 60 sec. When opened, de-energize X1 (GM) in 150 sec. and X2 (CM) in 90 sec. 3) Terminals 5, 6 Control X1 (GM) and X2 (CM) Relays. When opened, de-energize X1 (GM) and X2 (CM) immediately. When closed again, energize X1 (GM) in 1 sec. and X2 (CM) in 60 sec. 4) Terminals 7, 8, 9 X1 (GM) contacts. 8 is a movable contact, 7 is a m
Résumé du contenu de la page N° 12
III. Technical Information 1. Water Circuit and Refrigeration Circuit 12
Résumé du contenu de la page N° 13
2. Wiring Diagram [a] F-450MAH 13
Résumé du contenu de la page N° 14
[b] F-450MAH-C 14
Résumé du contenu de la page N° 15
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. 15
Résumé du contenu de la page N° 16
[b] When reservoir has been filled, gear motor starts immediately. 16
Résumé du contenu de la page N° 17
[c] Compressor starts about 60 sec. after gear motor starts. 17
Résumé du contenu de la page N° 18
[d] Bin control operates, and about 6 sec. later, compressor and gear motor stop simultaneously. 18
Résumé du contenu de la page N° 19
[e] Low water (except water-cooled model). 19
Résumé du contenu de la page N° 20
[f] When flush switch is moved to “FLUSH” position, flush water valve opens and flushes reservoir and evaporator. 20
Résumé du contenu de la page N° 1
Hoshizaki America, Inc.
Hoshizaki
Modular Flaker
Models
F-450MAH(-C)
SERVICE MANUAL
“A Superior Degree
of Reliability”
www.hoshizaki.com
®
Number: 73112
Issued: 8-21-2009
Résumé du contenu de la page N° 2
IMPORTANT Only qualified service technicians should install, service, and maintain the icemaker. No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the equipment in accordance with this manual may adversely affect safety, performance, component life, and warranty coverage. Hoshizaki provides this manual primarily to assist qualified service technicians in the service and maintenance of the icemaker. Should
Résumé du contenu de la page N° 3
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 .................................................................................................................... 4 1. F-450MAH .................................................
