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Related Manuals for Hoshizaki SRC-14H
Summary of Contents for Hoshizaki SRC-14H
- Page 1 Hoshizaki Hoshizaki America, Inc. Modular Cubelet Serenity Series with "F-A" Control Board Models FS-1001MLH-C with SRC-10H FS-1022MLH-C with SRC-10H FS-1500MLH-C with SRC-14H SERVICE MANUAL “A Superior Degree of Reliability” www.hoshizaki.com Number: 73203 Issued: 1-5-2015 Revised: 1-7-2015...
- Page 2 Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the appliance. Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, send an e-mail message, or write to the Hoshizaki Technical Support Department for assistance. Phone: 1-800-233-1940; (770) 487-2331 Fax: 1-800-843-1056;...
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Page 3: Table Of Contents
IMPORTANT This manual should be read carefully before the appliance is serviced. Read the warnings and guidelines contained in this manual carefully as they provide essential information for the continued safe use, service, and maintenance of the appliance. Retain this manual for any further reference that may be necessary. CONTENTS Important Safety Information .................... - Page 4 A. Specification and Performance Data ................58 1. FS-1001MLH-C with SRC-10H ................58 2. FS-1022MLH-C with SRC-10H ................59 3. FS-1500MLH-C with SRC-14H ................60 4. SRC-10H and SRC-14H ..................61 B. Wiring Diagram ......................62 1. Icemaker ........................ 62...
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Page 5: Important Safety Information
Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, damage to the appliance, or damage to property. WARNING Indicates a hazardous situation which could result in death or serious injury. - Page 6 WARNING, continued • The icemaker requires an independent power supply of proper capacity. See the nameplate for electrical specifications. Failure to use an independent power supply of proper capacity can result in a tripped breaker, blown fuse, damage to existing wiring, or component failure.
- Page 7 NOTICE • Follow the instructions in this manual carefully to reduce the risk of costly water damage. • In areas where water damage is a concern, install in a contained area with a floor drain. • Install the appliance in a location that stays above freezing. Normal operating ambient temperature must be within 45°F to 100°F (7°C to 38°C).
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Page 8: Construction And Water/Refrigeration Circuit Diagram
I. Construction and Water/Refrigeration Circuit Diagram A. Construction 1. Icemaker Top Panel BC2 (mechanical backup) Spout Float Switch Inlet Water Valve Evaporator Power Cord Heater Cutter, Extruding Head, Evaporator Reservoir Control Box Ice Chute Thermostatic Expansion Valve Strainer High-Side Service Valve Low-Side Service Valve Drier... -
Page 9: Condensing Unit
High-Side Service Valve Low-Side Service Valve Control Low-Pressure Receiver Switch Left Side Panel Safety Low-Pressure Switch Louver Panel b) SRC-14H Top Panel High-Pressure Switch Compressor Condenser Fan Motors Right Side Panel Headmaster (C.P.R.) Control Box Control Box Cover Receiver High-Side... -
Page 10: Icemaking Unit
3. Icemaking Unit Cutter Evaporator Flange Extruding Head and Upper Bearing Seal Bolts and Washers Evaporator Heater Auger Evaporator Mechanical Seal Socket Head Cap Screw O-Ring and Split Lock Washer Housing and Lower Bearing Spline Coupling Hex Bolt and Washer Socket Head Cap Screw Gear Motor and Split Lock Washer... -
Page 11: Water/Refrigeration Circuit Diagram
B. Water/Refrigeration Circuit Diagram... -
Page 12: Sequence Of Operation And Service Diagnosis
II. Sequence of Operation and Service Diagnosis A. Sequence of Operation Flow Chart 1. Icemaking and Drain Cycle... -
Page 13: Shutdown
2. Shutdown... -
Page 14: Service Diagnosis
B. Service Diagnosis WARNING • The appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. • Risk of electric shock. Use extreme caution and exercise safe electrical practices. •... - Page 15 2. Diagnostic Procedure This diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components. Before proceeding, check for correct installation, proper voltage per appliance nameplate, and adequate water pressure (10 PSIG to 113 PSIG). Check that both the 24VAC circuit fuse and the 115VAC GM fuse are good.
- Page 16 6) Startup – CB "POWER OK" LED is on. Plug the icemaker back into the electrical outlet, then move the power switch to the "ON" position. Move the control switch to the "ICE" position. CB "POWER OK" LED and BC1 green LED turn on. Diagnosis CB "POWER OK"...
- Page 17 8) Ice Purge Cycle – "GM" LED is on. 30-sec. GM delay timer terminates, GM, EH, and CCR/GMPR energize. Once CCR/GMPR energizes, 5VDC circuit closes through CCR/GMPR terminal #3 (W/O) and terminal #5 (W/O) and CB K9 #5 (W/O) and K9 #6 (W/O).
- Page 18 Condensing Unit Diagnosis: Confirm that CLPS closes. Once CLPS closes, MC energizes, energizing Comp and FMR. If not, check condensing unit 208-230VAC power supply, breakers, disconnets. Next, confirm 115VAC from CLPS BR wire to neutral (W). If 115VAC is not present, check wiring connections and power supply. CLPS: When PDS is energized, CLPS closes when refrigeration circuit low-side pressure reaches 29 PSIG.
- Page 19 10) Refill Cycle – "GM", "COMP", and "WTRIN" LEDs are on. LFS opens. WV energizes and FT starts. GM, CCR/GMPR, EH, PDS, MC, Comp, and FMR continue. LFS closes. Nothing happens at this time. Reservoir continues to fill until UFS closes. When UFS closes, WV de-energizes, FT terminates, and FZT starts. If UFS remains open longer than 90 sec.
- Page 20 BC1 yellow LED turns on (flashing or steady), BC1 shutdown delay timer (S1 dip switch 1, 2, 3) starts. For a typical dispenser unit application, a 100-sec. shutdown delay is recommended. When used with a standard Hoshizaki storage bin, any shutdown delay setting is acceptable. See "III.B.2. BC1 (Infrared Sensor) Shutdown Delay (S1 dip switch 1, 2, 3)."...
- Page 21 Condensing Unit Diagnosis: When PDS de-energizes and closes, pump-down starts. Confirm refrigerant low-pressure drops to 9 PSIG and CLPS opens. If refrigerant low-pressure reaches 9 PSIG and CLPS does not open, replace CLPS. If Comp and FMR remain energized after CLPS opens, replace MC. Note: If BC1 fails to shut down the icemaker, BC2 opens, CB shuts down the icemaker and sounds a 9-beep alarm.
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Page 22: Control Board Check
C. Control Board Check Before replacing a control board that does not show a visible defect and that you suspect is bad, always conduct the following check procedure. This procedure will help you verify your diagnosis. 1) Check CB S1 dip switch settings to assure that they are in the factory default position. For factory default settings, see "III.B.1. - Page 23 4) 5VDC Output Checks: CB K9 Connector: Control Switch (CB K9 #1 and #2) (open contacts for icemaking, closed contacts for drain), Jumper (CB K9 #3 and #4), Compressor Control Relay/Gear Motor Protect Relay (K9 #5 and #6). CB K8 Connector: Bin Control 2 (K8 #3 and #4) and Float Switch (K8 #5 (common), #6 (lower), and #7 (upper)).
- Page 24 c. Bin Control 2 (mechanical backup) – CB K8 #3 (GY) and CB K8 #4 (GY): 5VDC is present from CB white K5 connector, pin closest to CB red K4 connector to CB K8 #3 (GY) at all times. If 5VDC is not present, replace CB. When BC2 is closed (calling for ice), 5VDC is present from CB white K5 connector, pin closest to CB red K4 connector, to CB K8 #3 (GY) and CB K8 #4 (GY).
- Page 25 7) Freeze Cycle "GM" and "COMP" LED are on: The 5-min. ice purge timer terminates or the ice purge cycle bypass button ("SERVICE") is pressed, "COMP" LED turns on. To bypass the 5-min. Ice Purge Cycle, press the "SERVICE" button on CB after the "GM" LED turns on.
- Page 26 "F-A" Control Board • K9 Connector (5VDC) High-Pressure Switch Control Switch (not used on this model) #1 & #2 (white/black) • "GM" LED • "COMP" LED #3 & #4 (yellow) (X2 Relay) (X1 Relay) Compressor Control Relay/Gear Motor Protect Relay Circuit #5 &...
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Page 27: Bin Control Check
D. Bin Control Check 1. Bin Control 1 (infrared sensor) Check IMPORTANT Make sure S1 dip switch 7 is in the "ON" position. This allows the control board to monitor the BC1 (infrared sensor) along with the BC2 (mechanical backup) bin control. - Page 28 8) "GM" and "COMP" LEDs are on. Use an object to cover the lens. BC1 yellow LED turns on (flashing or steady). BC1 yellow LED flashes when ice is at the outer limit of its range and turns steady as ice nears. After BC1 yellow LED turns on (flashing or steady), BC1 shutdown delay timer starts .
- Page 29 Bin Control (mechanical stand-alone): With S1 dip switch 7 placed in the "OFF" position, BC is used as a stand-alone bin control. The stand-alone application should only be used in Hoshizaki standard ice storage bin applications. WARNING! Do not place S1 dip switch 7 in the "OFF" position on dispenser unit applications.
- Page 30 7) Press the actuator paddle located in the top of the chute. S1 dip switch 7 in the "ON" position: PDS and GM de-energize and CB sounds a 9-beep alarm. S1 dip switch 7 in the "OFF" position: PDS and GM de-energize. BC(2) Diagnosis: If BC(2) does not open or the icemaker continues to make ice, check that the actuator paddle is moving freely.
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Page 31: Float Switch Check And Cleaning
E. Float Switch Check and Cleaning 1. Float Switch Check 1) Remove the front panel, then move the power switch to the "OFF" position. 2) Move the control switch to the "DRAIN" position. 3) Move the power switch to the "ON" position. 4) Allow the water to drain from the evaporator, then move the power switch to the "OFF"... - Page 32 2) Unplug the appliance from the electrical outlet. 3) Remove FS assembly from the reservoir cover. See Fig. 6. 4) Wipe down FS assembly with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts warm water. Rinse the assembly thoroughly with clean water.
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Page 33: Diagnostic Tables
F. Diagnostic Tables Before consulting the diagnostic charts, check for correct installation, proper voltage per appliance nameplate, and adequate water supply. Check control board using the steps in "II.C. Control Board Check." 1. No Ice Production No Ice Production - Possible Cause Startup 1. - Page 34 Ice Purge Cycle 1. Control Board a) No power to gear motor. b) No power to compressor control relay. 2. Gear Motor a) Blown fuse. b) Internal protector open. c) Defective. Freeze Cycle 1. Compressor Control Relay/Gear a) No voltage from gear motor. Motor Protect Relay b) Defective.
- Page 35 Refill 1. Float Switch a) Dirty/sticking. b) Defective. 2. Inlet Water Valve a) Clogged or defective. 3. Water Supply a) Off. 4. Control Board a) No power to float switch or not reading float switch condition. b) No power to inlet water valve. Shutdown 1.
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Page 36: Controls And Adjustments
III. Controls and Adjustments A. Control Board • A Hoshizaki exclusive control board is employed in Hoshizaki Modular Flakers. • All models are pre-tested and factory adjusted. • For a control board check procedure, see "II.C. Control Board Check." NOTICE •... -
Page 37: Control Board Layout
1. Control Board Layout "F-A" Control Board • K9 Connector (5VDC) High-Pressure Switch Control Switch (not used on this model) #1 & #2 (white/black) • "GM" LED • "COMP" LED #3 & #4 (yellow) (X2 Relay) (X1 Relay) Compressor Control Relay/Gear Motor Protect Relay Circuit #5 &... -
Page 38: Led Lights And Audible Alarm Safeties
2. LED Lights and Audible Alarm Safeties At startup, CB green "POWER OK" LED turns on immediately to indicate proper control voltage and will remain on unless a control voltage problem occurs. For further details, see "II.B. Service Diagnosis." Energized Sequence Step Components Min. -
Page 39: Ice Purge Cycle Bypass
Dip switches are factory set. Failure to maintain factory settings may adversely affect performance and warranty coverage. For more information, contact your Hoshizaki Certified Service Representative. 1. Default Dip Switch Settings The S1 dip switch settings are factory-set to the following positions: S1 Dip Switch S1 Dip Switch No. -
Page 40: Bc1 (Infrared Sensor) Shutdown Delay (S1 Dip Switch 1, 2, 3)
For a typical dispenser unit application, a 100-sec. shutdown delay is recommended. When used with a standard Hoshizaki storage bin, any shutdown delay setting is acceptable. -
Page 41: Bin Control Selector (S1 Dip Switch 7)
5. Bin Control Selector (S1 dip switch 7) The appliance is factory set for infrared sensor bin control operation. No adjustment is required. When used on a standard ice storage bin, the mechanical bin control may be used instead of the infrared sensor by moving S1 dip switch 7 to the off position. In the factory default position (S1 dip switch 7 in the on position), the gear motor delay after the upper float switch closes is 30 sec. -
Page 42: Power Switch And Control Switch
C. Power Switch and Control Switch The power switch and control switch are used to control the operation of this appliance. They are located on the control box. 1. Power Switch The power switch has 2 positions, "OFF" and "ON." When the power switch is in the "OFF"... -
Page 43: Refrigeration Circuit And Component Service Information
IV. Refrigeration Circuit and Component Service Information WARNING • This appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. • Before Servicing: FS: Move the icemaker's power switch to the "OFF" position. Unplug the icemaker from the electrical outlet. - Page 44 1. Refrigerant Recovery Using proper refrigerant practices, recover the refrigerant. Recover via the service valves. Store the refrigerant in an approved container. Do not discharge the refrigerant into the atmosphere. 2. Brazing WARNING • R-404A itself is not flammable at atmospheric pressure and temperatures up to 176°F (80°C).
- Page 45 Remember to loosen the connection and purge the air from the hose. See the rating label inside the icemaker for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets AHRI Standard 700 (latest edition) be used.
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Page 46: Component Service Information
B. Component Service Information NOTICE • When replacing a component listed below, see the notes to help ensure proper operation. • When replacing evaporator assembly and water circuit components, make sure there are no water leaks after the repair is complete. •... - Page 47 Evaporator Assembly Welded Metal Drip Pan Evaporator Heater Cutter Hex Head Bolt Cutter Upper Bearing Cutter Washer (pressed into auger) Extruding Head Extruding Head Dowel Pin FS-1500MLH-C FS-1001MLH-C: Auxiliary Code D-0(D) and Earlier FS-1022MLH-C: Auxiliary Code C-0 and Earlier Auger Seal Bolt Washer (FS-1001MLH-C &...
- Page 48 Evaporator Assembly Removable Rubber Drip Pan Cutter: FS-1001MLH-C: Auxiliary Code D-0(E) and Later FS-1022MLH-C: Auxiliary Code D-0 and Later Upper Bearing (pressed into auger) Extruding Head Auger Evaporator Heater Flange: FS-1001MLH-C: Auxiliary Code D-1 and Later FS-1022MLH-C: Auxiliary Code D-1 and Later Seal Bolt Drip Pan: FS-1001MLH-C: Auxiliary Code D-1 and Later...
- Page 49 1. Upper Bearing Wear Check To ensure that the bearing inside the extruding head does not exceed the wear tolerance of .02", follow the instructions below. 1) Remove the front panel. Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet.
- Page 50 IMPORTANT! Seal Bolt Removal and Installation Instructions: Seal bolts must be replaced once removed because seal material is one-time use only. If new seal bolts do not have preapplied threadlocker, apply Loctite 243 or equivalent threadlocker to seal bolt threads. •...
- Page 51 7) Replace the removed parts in the reverse order of which they were removed. Note: Be sure to use new seal bolts. See "Seal Bolt Removal and Installation Instructions" above. 8) Replace the top and side panels in their correct positions. 9) Move the control switch to the "ICE"...
- Page 52 16) Evacuate the system, and charge it with refrigerant. See the rating label inside the icemaker for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 (latest edition) be used.
- Page 53 8) Remove the O-ring and mechanical seal from the housing. If only replacing the mechanical seal, proceed to step 15. NOTICE! To help prevent water leaks, be careful not to damage the surfaces of the O-ring or mechanical seal. NOTICE To help prevent water leaks, be careful not to damage the surfaces of the O-ring or mechanical seal.
- Page 54 6) Disconnect the gear motor wiring, then remove the gear motor. 7) Remove the gear motor bracket and spline coupling from the old gear motor and place on the new gear motor. 8) Install the new gear motor and reconnect the electrical wires. 9) Replace the removed parts in the reverse order of which they were removed.
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Page 55: Maintenance
V. Maintenance The appliance must be maintained in accordance with the instruction manual and labels provided. Consult with your local Hoshizaki Certified Service Representative about maintenance service. WARNING • Only qualified service technicians should service the appliance. • To reduce the risk of electric shock, do not touch the icemaker power switch or control switch with damp hands. - Page 56 A. Maintenance Schedule The maintenance schedule below is a guideline. More frequent maintenance may be required depending on water quality, the appliance's environment, and local sanitation regulations. Maintenance Schedule Frequency Area Task Daily Scoop Clean the ice scoop using a neutral cleaner. Rinse thoroughly after cleaning.
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Page 57: Disposal
VI. Disposal The appliance contains refrigerant and must be disposed of in accordance with applicable national, state, and local codes and regulations. Refrigerant must be recovered by properly certified service personnel. -
Page 58: Technical Information
VII. Technical Information A. Specification and Performance Data 1. FS-1001MLH-C with SRC-10H Specification Sheet AC SUPPLY VOLTAGE 115/60/1 GEAR MOTOR 120 V 3 FLA 200 Watts OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX. -
Page 59: Fs-1022Mlh-C With Src-10H
2. FS-1022MLH-C with SRC-10H Specificaiton Sheet AC SUPPLY VOLTAGE 115/60/1 GEAR MOTOR 120 V 3 FLA 200 Watts 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 ELECTRIC &... -
Page 60: Fs-1500Mlh-C With Src-14H
Photoelectric Sensor (BC1 (Infrared Sensor)) BIN CONTROL SYSTEM (Secondary) Proximity Switch (BC2 (Mechanical)) CONDENSING UNIT Air-Cooled Remote Condensing Unit SRC-14H Required TOTAL REFRIGERANT CHARGE R-404A, 11 lb. (5000 g) (Icemaker: 4 oz., Condensing Unit: 10 lb. 12 oz.) REFRIGERANT CIRCUIT PRESSURE PROTECTION in SRC-14H Auto-Reset High-Pressure Switch;... -
Page 61: Src-10H And Src-14H
4. SRC-10H and SRC-14H SRC-10H Specification Sheet AC SUPPLY VOLTAGE 208-230/60/1 (3 WIRE WITH NEUTRAL) COMPRESSOR 208-230 6.5 RLA 46 LRA FAN MOTOR 120 V OTHER 120 V 0.5 A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. -
Page 62: Wiring Diagram
B. Wiring Diagram 1. Icemaker... -
Page 63: Condensing Unit
2. Condensing Unit * Control Low-Pressure Switch ** Safety Low-Pressure Switch *** High-Pressure Switch (Manual Reset) Cut-in 29± PSIG Cut-out 384± PSIG Cut-out 3±2.5 PSIG Differential 20± PSIG Cut-in 284±22 PSIG Differential 6 PSIG Cut-out 9 PSIG...