Hoshizaki FS-1022MLH-C service manual Contents

Page 3

IMPORTANT
This manual should be read carefully before the icemaker is serviced or
maintenance operations are performed. Only qualified service technicians
should install, service, and maintain the icemaker. Read the warnings contained
in this booklet carefully as they give important information regarding safety.
Please retain this booklet for any further reference that may be necessary.
CONTENTS
Important Safety Information	5
I. Specifications	7
A. Icemaker	7
B. Condensing Unit	8
II. General Information	9
A. Construction	9
1. Icemaker	9
2. Condensing Unit	10
3. Icemaking Unit	11
B. Sequence of Operation	12
1. Sequence Cycles and Shutdown	12
a) Fill Cycle	12
b) Ice Purge Cycle	12
c) Freeze Cycle	12
d) Drain Cycle	13
e) Shutdown Cycle	14
2. Sequence Flow Chart	15
C. Control Board	16
1. Control Board Layout	17
2. LED Lights and Audible Alarm Safeties	18
3. Controls and Adjustments	19
a) Default Dip Switch Settings	19
b) Infrared Sensor Shutdown Delay (S1 dip switch 1, 2, 3)	19
c) Drain Frequency Control (S1 dip switch 4)	20
d) Continuous Dispensing Timer (S1 dip switch 5 & 6)	20
e) Bin Control Selector (S1 dip switch 7)	20
f) Mechanical Bin Control Shutdown Delay (S1 dip switch 8)	21
g) Factory Use (S1 Dip Switch 9 & 10)	21
III. Technical Information	22
A. Water Circuit and Refrigeration Circuit	22
B. Wiring Diagrams	23
1. FS-1022MLH-C	23
2. SRC-10H	24
C. Performance Data	25

3

Image 3

Contents SRC-10H Hoshizaki AMERICA, INC Contents Page Unit Important Safety InformationSerious injury Indicates important information about the use and careFor SRC FS-1022MLH-C Specifications IcemakerSRC-10H Condensing UnitIcemaker FS-1022MLH-C II. General Information ConstructionCondensing Unit a SRC-10H Icemaking Unit Sequence Cycles and Shutdown Sequence of OperationDrain Cycle Shutdown Cycle Sequence Flow Chart Control Board Sequence Flow Chart FS-1022MLH-C/SRC-10HControl Board Control Board Control Board LayoutEnergized Components Min Max LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Reset Options Every 5 sec Sequence StepControls and Adjustments S1 Dip Switch Setting Infrared Sensor Shutdown DelaySeconds 1.6 minutes Factory Default S1 Dip Switch Setting Dispense Time S1 Dip Switch Setting Drain Timer IntervalBin Control S1 Dip Switch MechanicalBackup Shutdown DelayIII Wiring Diagrams Control Low-Pressure Switch Safety Low-Pressure Switch Manual ResetHigh-Pressure Switch FS-1022MLH-C with SRC-10H Performance DataIV. Service Diagnosis Diagnostic ProcedureIce Production Check Page Page Page Control Board Check 5VDC Page Infrared Sensor Check Bin Control CheckMechanical Backup Bin Control Check Page Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Page Diagnostic Charts No Ice ProductionNo Ice Production Possible Cause Startup No Ice Production Possible Cause Shutdown Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery BrazingEvacuation and Recharge R-404A Important Notes for Component Replacement Evaporator Assembly Components. See FigComponent Evaporator Assembly Upper Bearing Wear Check Removal and Replacement of CutterRemoval and Replacement of Auger Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator Page Removal and Replacement of Gear Motor 6b. Lower HousingPage Cleaning Procedure VI. Cleaning and MaintenanceCleaning and Sanitizing Instructions Cleaning SolutionFloat Switch Assembly Reservoir Cover Sanitizing Procedure Initial Sanitizing SolutionSanitizing Procedure Final Maintenance Frequency Area Task Maintenance SchedulePreparing the Icemaker for Long Storage Remove the water from the icemaker water supply lineDrain the evaporator