NO: ISSUED: 73119 Sep.
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.
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 .................................................................................................................... 5 1. Icemaker ............................................................
IV. Service Diagnosis .......................................................................................................... 43 1. No Ice Production ....................................................................................................... 43 2. Evaporator is Frozen Up ............................................................................................. 47 3. Low Ice Production .....................................................................................................
I. Specifications 1. Icemaker KM-1300SAH AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day ( kg/day ) Reference without *marks 208-230/60/1 (3 wire with neutral for 115V) 12.6 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A 20 A Ambient WATER TEMP. (°F) Temp.
KM-1300SWH AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day ( kg/day ) Reference without *marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) POTABLE WATER WATER COOLED CONDENSER gal./24HR (gal./100 lbs.
KM-1300SRH AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day ( kg/day ) Reference without *marks 208-230/60/1 (3 wire with neutral for 115V) 14.5 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A 20 A Ambient WATER TEMP. (°F) Temp.(°F) 50 70 90 70 *1296 (588) 1257 (570) 1173 (532) 80 1266 (574) 1206 (547) 1105 (501) 90 1257 (570) *1163 (528) 1068 (484) 100 1230 (558) 1141 (517) 980 (445) SHAPE OF ICE Crescent Cube ICE PRODUCTION PER CYCLE 30.
KM-1300SAH3 AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day ( kg/day ) Reference without *marks 208-230/60/3 7.8 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A 20 A Ambient WATER TEMP. (°F) Temp.(°F) 50 70 90 70 *1320 (599) 1265 (574) 1153 (523) 80 1278 (580) 1192 (541) 1060 (481) 90 1265 (574) *1132 (513) 1006 (456) 100 1230 (558) 1102 (500) 890 (404) SHAPE OF ICE Crescent Cube ICE PRODUCTION PER CYCLE 30.1 lbs. (13.7 kg) 1440 pcs.
KM-1300SWH3 AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day ( kg/day ) Reference without *marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) POTABLE WATER WATER COOLED CONDENSER gal./24HR (gal./100 lbs.
KM-1300SRH3 AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day ( kg/day ) Reference without *marks 208-230/60/3 10.8 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A 20 A Ambient WATER TEMP. (°F) Temp.(°F) 50 70 90 70 *1308 (593) 1296 (588) 1203 (546) 80 1299 (589) 1279 (580) 1145 (520) 90 1296 (588) *1266 (574) 1148 (521) 100 1252 (568) 1238 (562) 1039 (471) SHAPE OF ICE Crescent Cube ICE PRODUCTION PER CYCLE 30.1 lbs. (13.7 kg) 1440 pcs.
2.
SPECIFICATIONS MODEL: URC-12F EXTERIOR Galvanized Steel DIMENSIONS (W x D x H) 35 - 11/16” x 15-11/16” x 21-15/16” (907.2 x 398 x 557.8 mm) REFRIGERANT CHARGE URC-12F R404A 4 lbs. 7 oz. (2000 g) WEIGHT Net 80 lbs. (36 kg) Shipping 87 lbs. (39 kg) CONNECTIONS REFRIGERANT ELECTRICAL One Shot Couplings (Aeroquip) Permanent Connection CONDENSER Air-cooled HEAD PRESSURE CONTROL Condensing Pressure Regulator AMBIENT CONDITION Min. -20°F - Max.
II. General Information 1.
[b] KM-1300SWH, KM-1300SWH3 14
[c] KM-1300SRH, KM-1300SRH3 15
2. Controller Board [a] Solid-State Control 1) A HOSHIZAKI exclusive solid-state control is employed in KM-1300SAH, KM-1300SWH, KM-1300SRH, KM-1300SAH3, KM-1300SWH3, and KM-1300SRH3 Stackable Crescent Cubers. 2) A printed circuit board (hereafter called “controller board”) includes a stable and high quality control system. 3) All models are pretested and factory-adjusted. [b] Controller Board CAUTION 1. Fragile, handle very carefully. 2.
(3) High Temperature Safety - 127 ± 7°F The temperature of the suction line in the refrigerant circuit is limited by the high temperature safety. During the defrost cycle the evaporator temperature rises. The thermistor senses 48°F and starts the defrost timer. After the defrost timer counts down to zero, the normal freeze cycle begins. If the evaporator temperature continues to rise, the thermistor will sense the rise in temperature and at 127 ± 7°F the thermistor operates the high temperature safety.
The green LED’s 1-4 represent the corresponding relays and energize and sequence 5 seconds from initial startup as follows: Sequence Step 1 Minute Fill Cycle Harvest Cycle Cycle Reverse Pump Out LED’s on Length: LED4 LED1, 4, & 2 LED1 LED1, 3, & 2 Min. Max. 2 min. 5 min. 10 sec. 20 min. 60 min. 20 sec. Avg. 60 sec. 3-5 min. Freeze 30-35 min. Factory set. {LED 1 – Comp; LED 2 - HGV/CFM; LED 3 – PM; LED 4 - WV} The built in safeties shut down the unit and have alarms as follows: 1 beep every 3 sec.
The dip switches should be adjusted per the adjustment chart published in the Tech Specs book. 7 & 8 must remain in the OFF position.
[c] Sequence 1st Cycle 3. Thermistor reads 48°F. Defrost Timer starts counting. 1. Unit energized and Control Switch to “ICE” position. Water supply cycle starts. 2. After 1 minute. Defrost cycle starts. IMPORTANT Water Valve opening is limited to 6 minutes. 5. After the first 5 minutes in freeze cycle. Ready to complete freeze cycle when Float Switch circuit opens. 4. Defrost Timer stops counting. Defrost cycle is completed and freeze cycle starts.
2nd Cycle and after with pump drain IMPORTANT Freeze cycle time is limited by the freeze timer factory setting even if the Float Switch does not open. 2. Drain timer stops counting. Pump drain is completed 1. Float Switch opens and signals to complete freeze cycle. Drain timer starts counting. 3. Thermistor reads 48° F. Defrost Timer starts counting. IMPORTANT Water Valve opening is limited to 6 minutes. & 5. After the first 5 minutes in freeze cycle.
2nd Cycle and after with no pump drain IMPORTANT Freeze cycle time is limited by the freeze timer factory setting even if the Float Switch does not open. 2. Thermistor reads 48° F. Defrost Timer starts counting. 1. Float Switch opens and signals to complete freeze cycle. IMPORTANT Water Valve opening is limited to 6 minutes. 3. Defrost Timer stops counting. Defrost cycle is completed and freeze cycle starts. 4. After the first 5 minutes in freeze cycle.
[d] Controls and Adjustments The dip switch is factory-adjusted to the following positions: DIP SWITCH NO. 1 2 3 2A1410-01 KM-1300SAH KM-1300SWH OFF OFF ON KM-1300SRH KM-1300SWH3 KM-1300SAH3 OFF OFF ON KM-1300SRH3 4 5 6 7 8 9 10 ON ON ON OFF OFF OFF OFF ON ON ON OFF OFF ON OFF Switch Nos. 1 and 2: Used for adjustment of the defrost timer. The defrost timer starts counting when the thermistor reads a certain temperature at the evaporator outlet. Switch Nos.
1) Defrost Control A thermistor (semiconductor) is used for a defrost control sensor. The resistance varies depending on the suction line temperatures. The thermistor detects the temperature of the evaporator outlet to start the defrost timer. No adjustment is required. If necessary, check for resistance between thermistor leads, and visually check the thermistor mounting, located on the suction line next to the evaporator outlet. Temperature (°F) 0 10 32 50 70 90 Resistance (kΩ) 14.401 10.613 6.000 3.
3) Drain Timer The drain timer is factory-adjusted and no adjustment is required. SETTING Dip Switch Dip Switch No. 3 No. 4 OFF ON OFF ON OFF OFF ON ON TIME T1 T2 10 seconds 10 seconds 10 seconds 20 seconds 150 180 120 180 seconds seconds seconds seconds T1: Time to drain the water tank T2: Time to restrain defrost completion 4) Drain Counter CAUTION Do not adjust the drain counter, or the evaporator may freeze up.
5) Freeze Timer CAUTION Adjust to proper specification, or the unit may not operate correctly. The freeze timer is factory adjusted and no adjustment is required. This setting determines the maximum allowed freeze time to prevent possible freeze-up issues. SETTING Dip Switch Dip Switch No. 9 No. 10 OFF ON OFF ON TIME OFF OFF ON ON 60 min. 70 min. 50 min. 60 min.
(ii) After the above step (i), disconnect the float switch leads from the controller board within the first 5 minutes of the freeze cycle. The unit should go into the defrost cycle after the first 5 minutes ± 20 seconds of the freeze cycle. (iii) Reconnect the float switch connector to the controller board. After the first 5 minutes of the freeze cycle, disconnect the float switch leads from the controller board. At this point, the unit should start the defrost cycle.
III. Technical Information 1.
[b] KM-1300SWH, KM-1300SWH3 29
[c] KM-1300SRH, KM-1300SRH3 30
2. Wiring Diagrams [a] KM-1300SAH, KM-1300SWH Note: Pressure Switch KM-1300SWH KM-1300SAH Cut-out 412 +21.3 PSIG 0 Cut-out 384 +21.3 PSIG 0 Cut-in 327 ± 21.3 PSIG Cut-in 285 ± 21.
[b] KM-1300SRH Note: Pressure Switch Cut-out Cut-in 412 PSIG +21.3 0 327 ± 21.
[c] KM-1300SAH3, KM-1300SWH3 Note: Pressure Switch KM-1300SWH3 KM-1300SAH3 Cut-out 412 +21.3 PSIG 0 Cut-out 384 +21.3 PSIG 0 Cut-in 327 ± 21.3 PSIG Cut-in 285 ± 21.
[d] KM-1300SRH3 Note: Pressure Switch Cut-out 412 +21.3 PSIG 0 Cut-in 327 ± 21.
3.
4. Performance Data [a] KM-1300SAH APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. 3 gal./day m /day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min. HEAD PRESSURE PSIG 2 kg/cm G SUCTION PRESSURE PSIG 2 kg/cm G WATER TEMP. (ºF/ºC) AMBIENT TEMP.
[b] KM-1300SWH APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. 3 gal./day m /day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min. HEAD PRESSURE PSIG 2 kg/cm G SUCTION PRESSURE PSIG WATER TEMP. (ºF/ºC) AMBIENT TEMP.
[c] KM-1300SRH APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. 3 gal./day m /day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min. HEAD PRESSURE PSIG 2 kg/cm G SUCTION PRESSURE PSIG 2 kg/cm G WATER TEMP. (ºF/ºC) AMBIENT TEMP.
[d] KM-1300SAH3 APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day watts APPROXIMATE WATER CONSUMPTION PER 24 HR. WATER TEMP. (ºF/ºC) AMBIENT TEMP. (ºF/ºC) 50/10 70/21 90/32 70/21 1320 599 1265 574 1153 523 80/27 1278 580 1192 541 1060 481 90/32 100/38 1265 1230 574 558 1132 1102 513 500 1006 890 456 404 70/21 2150 2197 2239 80/27 2186 2259 2289 90/32 2197 2311 2347 2320 2198 2380 100/38 70/21 632 2.39 525 1.99 476 1.80 80/27 551 2.08 385 1.
[e] KM-1300SWH3 APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. 3 gal./day m /day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min. HEAD PRESSURE PSIG 2 kg/cm G SUCTION PRESSURE PSIG WATER TEMP. (ºF/ºC) AMBIENT TEMP.
[f] KM-1300SRH3 APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. 3 gal./day m /day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min. HEAD PRESSURE PSIG 2 kg/cm G SUCTION PRESSURE PSIG 2 kg/cm G WATER TEMP. (ºF/ºC) AMBIENT TEMP.
IV. Service Diagnosis 1. No Ice Production Problem Possible Cause [1] The icemaker will not a) Power Supply start. Remedy 1. OFF position. 1. Move to ON position. 2. Loose connection. 2. Tighten. 3. Bad contacts. 3. Check for continuity and replace. 4. Voltage too high. 4. Check and get recommended voltage. 1. Check for short circuit and replace. b) Fuse (Inside fused disconnect, if any) 1. Blown. c) Control Switch 1. OFF position. 1. Move to ICE position. 2. Bad contacts. 2.
Problem Possible Cause [1] Continued from previous page. j) Water Supply Line 1. Water supply off and water 1. Check and get supply cycle does not recommended pressure. finish. 2. Condenser water pressure 2. Check and get too low or off and pressure recommended pressure. control opens and closes frequently to finally operate high temperature safety. k) Water Solenoid 1. Mesh filter or orifice gets clogged and water supply cycle does not finish. 1. Clean. 2. Coil winding opened. 2. Replace. 3.
Problem Possible Cause [3] Continued from previous page. c) Overload Protector Remedy 1. Bad contacts. 1. Check for continuity and replace. 2. Voltage too low. 2. Increase voltage. 3. Refrigerant overcharged or 3. Recharge. undercharged. d) Starter 4. Line valve continues to close in freeze cycle and overload protector operates. 4. Check line valve's operation in freeze cycle and replace. 1. Bad contacts. 1. Check and replace. 2. Coil winding opened. 2. Replace. e) Start Capacitor or Run 1.
Problem Possible Cause [5] Continued from previous page. d) Pump Motor Remedy 1. Motor winding opened. 1. Replace. 2. Bearing worn out. 2. Replace. 3. Wiring to pump motor. 3. Check for loose connection or open, and replace. 4. Replace. 4. Defective capacitor. 5. Defective or bound impeller. 5. Replace and clean. 6. Mechanical seal worn out. 6. Check and replace. [6] Fan Motor will not start, or is not operating. [7] All components run, but no ice is produced. e) Controller Board 1.
2. Evaporator is Frozen Up Problem Possible Cause [1] Freeze cycle time is too long. a) Float Switch Remedy 1. Leads short-circuit or defective switch. 1. Check and replace. 2. Float does not move freely. 2. Clean or replace. b) Water Solenoid Valve 1. Diaphragm does not close. 1. Check for water leaks with icemaker off. c) Controller Board 1. Defective. 1. See "II.2[e] Checking the Controller Board." 1. Scaled up. 1. Clean. 1. Water pressure too low. 1. Check and get recommended pressure.
3. Low Ice Production Problem Possible Cause [1] Freeze cycle time is long. a) See chart 1.[3] and check high pressure controller and water regulator. Remedy b) See chart 2.[1] and check float switch, water solenoid valve and controller board. [2] Harvest cycle time is a) See chart 2.[2] and check evaporator, water supply line, water filter system, water long. solenoid valve, ambient and/or water temperature, line valve, thermistor, and controller board. 4.
V. 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.
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. For air-cooled and watercooled models, see the nameplate for the required refrigerant charge. For remote air-cooled models, see the charge label in the machine compartment. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard No. 700-88 be used.
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 repair or replacement has been made. Note: When replacing a compressor with a defective winding, be sure to install the new start capacitor and start relay supplied with the replacement compressor.
16) Connect the terminals, and replace the terminal cover in its correct position. 17) Replace the panels in their correct positions. 18) 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 repair or replacement has been made. 1) Turn off the power supply. 2) Remove the panels. 3) Recover the refrigerant and store it in an approved container.
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 repair or replacement has been made. 1) Turn off the power supply. 2) Remove the panels. 3) Recover the refrigerant and store it in an approved container.
6. Removal and Replacement of Hot Gas Valve and Line Valve CAUTION Always use a copper tube of the same diameter and length when replacing the hot gas lines; otherwise the performance may be reduced. IMPORTANT Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repair or replacement has been made. 1) Turn off the power supply. 2) Remove the panels. 3) Recover the refrigerant and store it in an approved container.
13) Replace the panels in their correct positions. 14) Turn on the power supply. 7. Removal and Replacement of Evaporator IMPORTANT Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repair or replacement has been made. 1) Turn off the power supply. 2) Remove the panels and the top insulation over the evaporator. 3) Recover the refrigerant and store it in an approved container.
8. 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 repair or replacement has been made. 1) Turn off the power supply. 2) Close the water supply line shut-off valve. 3) Remove the panels. 4) Recover the refrigerant and store it in an approved container. 5) Disconnect the capillary tube at the condenser outlet using brazing equipment.
9. 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 for the condenser drain temperature.
10. 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 repair or replacement has 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) Before heating, break off the stub on the dome to release the dome charge.
11. Removal and Replacement of Thermistor CAUTION 1. Fragile, handle very carefully. 2. Always use a recommended sealant (high thermal conductive type), Model KE4560RTV manufactured by Shinetsu Silicone, Part Code 60Y000-11, or Part Code 4A0683-01 equivalent. 3. Always use a recommended foam insulation (non-absorbent type) or equivalent. 1) Turn off the power supply. Thermistor Lead Cable Tie 2) Remove the panels. 3) Remove the control box cover.
12. Removal and Replacement of Fan Motor Note: When replacing a fan motor with defective winding, it is recommended that a new capacitor be installed. 1) Turn off the power supply. 2) Remove the panels. 3) Remove the junction box cover from the remote condenser unit (remote air-cooled model). 4) Remove the closed end connectors from the fan motor leads. 5) Remove the fan motor bracket and fan motor. 6) Install the new fan motor, and replace the removed parts in the reverse order of which they were removed.
13. Removal and Replacement of Water Valve 1) Turn off the power supply. 2) Close the water supply line shut-off valve. 3) Remove the front panel. 4) Remove the valve outlet tubing by releasing the clamp. 5) Remove the bracket from the unit. 6) Remove the fitting nut and water valve. 7) Disconnect the terminals from the water valve. 8) Install the new water valve, and replace the removed parts in the reverse order of which they were removed. 9) Open the water supply line shut-off valve.
7) Remove the closed end connectors from the pump motor leads. 8) Remove the two screws and the pump motor bracket. 9) Remove the pump housing and check the impeller. 10) If the impeller is defective, install a new impeller. 11) Install the new motor or new parts, and replace the removed parts in the reverse order of which they were removed. 12) Turn on the power supply and check for leaks. 13) Replace the front panel in its correct position. 15.
VI. 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 WARNING When shutting off the icemaker for an extended time, drain out all water from the water tank and remove the ice from the storage bin. The storage bin should be cleaned and dried.
[2] Remove the water from the potable water supply line: 1) Remove the front panel. (Except water-cooled model) 2) Move the control switch on the control box to the “OFF” position. 3) Wait 3 minutes. 4) Close the potable water supply line shut-off valve and open the potable water supply line drain valve. 5) Allow the line to drain by gravity. 6) Attach compressed air or carbon dioxide supply to the potable water line drain valve. 7) Move the control switch to the “ICE” position.
2. Cleaning and Sanitizing Procedures IMPORTANT Ensure all components, fasteners and thumbscrews are securely in place after any maintenance or cleaning is done to the equipment. WARNING 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.
[a] Cleaning Procedure 1) Dilute 27 fl. oz. of the recommended cleaner Hoshizaki “Scale Away” or “LIME-A-WAY” (Economics Laboratory, Inc.) with 5 gal. of water. 2) Remove all ice from the evaporator and the storage bin. Note: To remove cubes on the evaporator, turn off the power supply and turn it on after 3 minutes. The defrost cycle starts and the cubes will be removed from the evaporator. 3) Turn off the power supply.
19) Turn on the power supply to fill the water tank with water. 20) Turn off the power supply after 3 minutes. 21) Remove the front panel, and fully open the cleaning valve. 22) Move the control switch to the “WASH” position. 23) Replace the front panel in its correct position. 24) Turn on the power supply to rinse off the cleaning solution. 25) Turn off the power supply after 5 minutes. 26) Remove the front panel and insulation panel.
[b] Sanitizing Procedure - Following Cleaning Procedure 1) Dilute a 5.25% sodium hypochlorite solution (chlorine bleach) with water (Add 2.5 fl. oz. of sanitizer to 5 gal. of water). 2) Remove the insulation panel, if it is in its normal position. 3) Pour the sanitizing solution into the water tank. 4) Replace the insulation panel and the front panel in their correct positions. Note: Make sure that the control switch is in the “WASH” position and the cleaning valve is open.
3. Maintenance IMPORTANT This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icemaker. 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. • The storage bin is for ice use only. Do not store anything else in the bin.
