Service Manual Modular Crescent Cuber with “G” Control Board Model KMD-460MAH, MWH KMD-530MAH, MWH, MRH KML-250MAH, MWH KML-351MAH, MWH KML-451MAH, MWH KML-631MAH, MWH, MRH hoshizakiamerica.
WARNING Only qualified service technicians should install and service the appliance. To obtain the name and phone number of your local Hoshizaki Certified Service Representative, visit www.hoshizaki.com. No service should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the appliance in accordance with this manual will adversely affect safety, performance, component life, and warranty coverage and may result in costly water damage.
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.................................................................................................. 5 I.
7. Freeze Timer (S4 dip switch 9 & 10)........................................................................ 47 8. Float Switch Selector (S5 dip switch 1).................................................................. 47 9. Refill Counter (S5 dip switch 2, 3, and 5), Program Selector (4)............................. 47 D. Switches....................................................................................................................... 48 1. Control Switch...................................
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. NOTICE Indicates a situation which could result in damage to the appliance or property. IMPORTANT Indicates important information about the use and care of the appliance.
WARNING, continued • Children should be properly supervised around this appliance. • Do not climb, stand, or hang on the appliance or allow children or animals to do so. Serious injury could occur or the appliance could be damaged. • Do not use combustible spray or place volatile or flammable substances near the appliance. They might catch fire. • Keep the area around the appliance clean. Dirt, dust, or insects in the appliance could cause harm to individuals or damage to the appliance.
I. Construction and Water/Refrigeration Circuit Diagram A. Construction 1.
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3.
B. Water/Refrigeration Circuit Diagram 1.
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Comp energized FMR energized HGV energized WV energized LLV de-energized FS closed FS open Thermistor temperature reaches 48°F (9°C) (3.9 kΩ or less) Harvest timer starts (1 to 3 min.). FS Check 1 to 3 min. harvest timer in control (S4 dip switch 1 & 2) If FS is open, Comp stops and cycle returns to 1-min. fill. FS open WV Energized FS Check Thermistor in control • Maximum harvest time: 20 minutes 1. 1-Minute Fill 2.
Comp energized FMR energized HGV energized WV energized FS closed Thermistor in control Thermistor temperature reaches 48°F (9°C) (3.9 kΩ or less). Harvest timer starts (1 to 3 min.). FS open PM energized WV de-energized FS check 50 sec. Harvest Pump Timer 1 to 3-min. harvest timer in control (S4 dip switch 1 & 2) Comp continues FMR continues FM energized LLV energized PM energized HGV de-energized FS closed 5-min.
To 1. 1-Minute Fill Cycle MBC open (MBC actuator paddle engaged) Green "BC CLOSED" LED off Yellow "BC OPEN" LED on Yellow "BC OPEN" LED continues. All components de‑energized. 2. Icemaker Off All components de-energized. MBC closed (MBC actuator paddle disengaged) Green "BC CLOSED" LED on Yellow "BC OPEN" LED off To 1. 1-Minute Fill Cycle 3. Ice Level Lowered Icemaker starts at "1. 1-Minute Fill Cycle.
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. Control switch in "OFF" position does not de‑energize all loads Use extreme caution and exercise safe electrical practices. • Moving parts (e.g., fan blade) can crush and cut. Keep hands clear.
1. "G" Control Board without Harvest Pump Timer Operation Diagnosis 3) Power On: Turn on the power supply, then move the control switch to the "ICE" position. A 5‑sec. delay occurs. CB red "POWER OK" LED and green "BC CLOSED" LED turn on. If yellow "BC OPEN" LED is on (indicating a missing or loose jumper (4A4883G01)), check that the jumper is securely in place. Move ice away from TBC bulb. If yellow "BC OPEN" LED stays on, see "II.D.1. Thermostatic Bin Control (TBC) Check.
4) 1-Minute Fill Cycle – LED 4 is on. WV energizes. After 1 min., CB checks for a closed FS. If FS is closed, harvest cycle begins. If harvest cycle begins (Comp, HGV, and FMR energize), continue to step 5. If FS is open, WV remains energized through additional 1‑min. fill cycles until water enters the water tank and FS closes (low water safety protection during initial start up and at the end of each harvest). Diagnosis: Check that water enters the water tank.
e) Initial Harvest Cycle Termination Diagnosis: When the thermistor reaches 48°F (9°C), CB reads 3.9 kΩ from the thermistor and turns harvest termination over to the harvest timer (S4 dip switch 1 & 2). Check discharge line temperature. For a thermistor check, see "II.F. Thermistor Check." If 1-min. fill cycle starts after harvest timer terminates, check that FS is clean and operating properly, see "II.E. Float Switch Check and Cleaning." If FS is closed, CB proceeds to the next cycle. If not, replace CB.
d) PM Diagnosis: Confirm water is flowing over evaporator from PM and not WV. If PM de-energizes once freeze begins, check for 115VAC at CB K1 #4 (R) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present and PM is de-energized, check for 115VAC at control switch #5 (Y) to neutral (W). If 115VAC is present at CB K1 #4 (R) and not at control switch #5 (Y), check control switch continuity between #5 (Y) and #6 (R). Replace as needed.
7) Pump-Out Cycle – LEDs 1, 3, and 2 are on (10/20 second pump-out). Timing of the first pump-out is dependent on CB. The first pump-out is determined by S4 dip switch 5 & 6. See the table below. "G" Control Board Settings S4 Dip Switch Setting 1st Pump-Out No. 5 No.
9) Shutdown a) Thermostatic Bin Control (TBC): When the appliance is running, hold ice in contact with the thermostatic bulb. BC switch opens within 10 sec., shutting down the appliance. TBC is factory set, and generally no adjustment is required. However, adjustment may be needed in some conditions, particularly at higher altitude locations. Diagnosis: See "II.D.1. Thermostatic Bin Control Check." CB red K4 connector must have the jumper in place.
2. "G" Control Board with Harvest Pump Timer Operation Diagnosis 3) Power On: Turn on the power supply, then move the control switch to the "ICE" position. A 5‑sec. delay occurs. CB red "POWER OK" LED and green "BC CLOSED" LED turn on. If yellow "BC OPEN" LED is on (indicating a full bin): KML-351MAH, KML-631M_H: If yellow "BC OPEN" LED is on (indicating a missing or loose jumper (4A4883G01)), check that the jumper is securely in place. Move ice away from TBC bulb. If yellow "BC OPEN" LED stays on, see "II.
4) 1-Min. Fill Cycle – LED 4 is on. WV and X11 relay energize. After 1 min., CB checks for a closed FS. If FS is closed, the harvest cycle begins (X10, Comp, HGV, FMR energize), Continue to step 5a. If FS is open, WV remains energized through additional 1-min. fill cycles until water enters the water tank and FS closes (low water safety protection during initial start up and at the end of each harvest). Diagnosis: Check that water enters the water tank.
5b) Harvest Pump Timer – LEDs 1, 3, and 2 are on. When the thermistor reaches 48°F (9°C), CB reads 3.9 kΩ from the thermistor and turns harvest termination over to the harvest timer (S4 dip switch 1 & 2). 50 sec. before the harvest timer terminates, LED turns on and PM energizes. Comp, FMR, HGV, and X10 relay continue. LED 4 turns off, WV and X11 relay de‑energize. Diagnosis: Place a thermometer on the suction line next to the thermistor. Has it warmed to 48°F (9°C) or warmer? Confirm thermistor status.
b) Comp and FMR Diagnosis: If Comp and FMR de-energize once freeze begins, check that appliance has not shut off on HPS ("POWER OK" LED off). If so, check "3)b) HPS Diagnosis." If "POWER OK" LED is on, check for 115VAC at CB K1 #1 (V) or #9 (V) to neutral (W). If 115VAC is not present and LED 1 is on, replace CB. If 115VAC is present, check for 115VAC at CR coil. If 115VAC is present, check CR coil and contact continuity. Replace as needed. If CR is okay, check Comp start relay and start and run capacitors.
h) Freeze Termination Diagnosis: After 5 min. in freeze, disconnect CB K5 FS connector. 15 sec. later appliance should switch out of the freeze cycle (15 second delay after FS opens before terminating the freeze cycle). If appliance remains in freeze longer than 15 sec. after FS removed, replace CB. If appliance switches with FS removed but would previously not switch out of freeze with FS connected (long freeze - 3 beep alarm), see "II.E. Float Switch Check and Cleaning.
Pump-Out Diagnosis: In the freeze cycle before pump-out (see table above), after 5 min. of freeze disconnect CB black K5 connector (FS connector). Check that PM stops and re-starts and that DV energizes and water is flowing down the drain through DV. If PM does not stop and re-start and DV does not energize, check that CB LEDs 1, 3, and 2 are on. If not, replace CB. If LEDs 1, 3, and 2 are on and PM and DV do not energize, check for 115VAC at CB K1 #5 (DBU) to neutral (W).
9) Shutdown a) Thermostatic Bin Control (TBC): When the appliance is running, hold ice in contact with the thermostatic bulb. BC switch opens within 10 sec., shutting down the appliance. TBC is factory set, and generally no adjustment is required. However, adjustment may be needed in some conditions, particularly at higher altitude locations. Diagnosis: See "II.D.1. Thermostatic Bin Control Check." CB red K4 connector must have the jumper in place.
C. Control Board Check Before replacing CB 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. Alarm Reset: If CB is in alarm (beeping), press the "ALARM RESET" button on CB while CB is beeping. WARNING! Risk of electric shock. Care should be taken not to touch live terminals. Once reset, the icemaker starts at the 1-minute fill cycle. For audible alarm information, see "III.B.
D. Bin Control Check 1. Thermostatic Bin Control Check TBC shuts down the icemaker within 10 sec. when ice contacts the thermostatic bulb, regardless of the cycle at activation. NOTICE When the ambient temperature is below 45°F (7°C), TBC opens and shuts down the appliance even if the ice storage bin is empty. When BC is set in the prohibited range, the appliance operates continuously even if the ice storage bin is filled with ice.
2. Mechanical Bin Control Check and Cleaning a) Mechanical Bin Control Check A lever-actuated proximity switch is used to control the ice level in the storage bin. No adjustment is required. To check MBC, follow the steps below. 1) Turn off the power supply. 2) Remove the front panel, then move the control switch to the "OFF" position. MBC Connector (to control board K4 (red) connector) 3) Remove the control box cover, then clear any ice away from MBC. 4) Check MBC wire harness connections. See Fig. 1.
b) Mechanical Bin Control Cleaning Scale may build up on MBC. Scale can cause the actuator paddle and magnet to stick. In this case, MBC should be cleaned. WARNING CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the icemaker is serviced. Make sure that none have fallen into the dispense unit/ice storage bin. 1) Turn off the power supply. 2) Remove the front panel, then move the control switch to the "OFF" position. 3) Clear any ice away from MBC.
E. Float Switch Check and Cleaning FS is used to determine that there is sufficient water in the water tank after the 1‑min. fill cycle and after each harvest cycle. FS is also used to determine that the appropriate volume of water has been converted into ice before switching out of the freeze cycle. No adjustment is required. 1. Float Switch Check To check FS, follow the steps below. 1) Remove the front panel, then move the control switch to the "SERVICE" position.
2. Float Switch Cleaning Depending on local water conditions, scale may build up on FS. Scale on the switch can cause the float to stick. In this case, FS should be cleaned. 1) Remove the front panel, then move the control switch to the "SERVICE" position. Move the service switch to the "DRAIN" position. 2) Allow the water to drain from the water tank, then move the control switch to the "OFF" position. Turn off the power supply. 6) Remove the FS from the PM bracket and water tank.
F. Thermistor Check To check thermistor resistance, follow the steps below. 1) Turn off the power supply. 2) Remove the front panel. Move the control switch to the "OFF" position. 3) Remove the control box cover. 4) Remove the thermistor from the refrigerant tubing. 5) Immerse the thermistor sensor portion in a glass containing ice and water for 2 or 3 min. 6) Disconnect the thermistor connector from CB K3 connector and check the resistance between thermistor leads. Normal range is 4.7 to 6.2 kΩ.
G. Diagnostic Tables 1. No Ice Production No Ice Production - Possible Cause 1. Power Supply a) Off, blown fuse, or tripped breaker. b) Not within specifications. 2. Fuse (inside fused disconnect, if any) a) Blown. 3. Thermostatic Bin Control See "II.D.1. Thermostatic Bin Control Check" a) Tripped with bin filled with ice. b) Ambient temperature too cool. c) Set too warm. d) Bulb out of position. e) Open contacts, defective. 4. Fuse (Control Box) a) Blown. 5.
No Ice Production - Possible Cause 14. Hot Gas Valve a) Closed in harvest cycle. b) Open in freeze cycle. 15. Thermistor See "II.F. Thermistor Check" a) Loose, disconnected, or defective. 16. Pump Motor a) Motor winding open. b) Bearing worn out or locked rotor. c) Defective capacitor. 17. Thermostatic Expansion Valve a) Bulb loose. b) Operating erratically. 18. Liquid Line Valve a) Closed in freeze cycle. b) Open in harvest cycle. 19. Fan Motor a) Motor winding open.
Freeze-Up - Possible Cause 10. Thermistor See "II.F. Thermistor Check" a) Loose, disconnected, or defective. 11. Thermostatic Expansion Valve a) Defective. 12. Hot Gas Valve a) Closed or restricted. 13. Liquid Line Valve a) Open. Freeze Cycle 1. Evaporator a) Scaled up. b) Damaged. 2. Spray Tubes and/or Spray Guides a) Dirty. 3. Refrigerant Charge a) Low. 4. Control Board See "II.C. Control Board Check" a) Freeze timer (S4 dip switch 9 & 10) set incorrectly. 5.
Low Ice Production - Possible Cause 10. Liquid Line Valve a) Erratic or open. 11. Thermostatic Expansion Valve a) Defective. Long Freeze Cycle 1. Evaporator a) Scaled up, dirty. 2. Float Switch See "II.E. Float Switch Check and Cleaning" a) Scaled up, dirty. 3. Inlet Water Valve a) Leaking by. 4. Hot Gas Valve a) Erratic or open. 5. Condenser a) Clogged. 6. Control Board See "II.C. Control Board Check" a) Float switch connection loose (K5). 7. Refrigerant Charge a) Low. 8.
III. Controls and Adjustments • A Hoshizaki exclusive control board is employed in KMD and KML series appliances. • All models are pretested and factory adjusted. • For a control board check procedure, see "II.C. Control Board Check." NOTICE • Fragile, handle very carefully. • The control board contains integrated circuits, which are susceptible to failure due to static discharge. It is especially important to touch the metal part of the icemaker when handling or replacing the control board.
A.
B. LED Lights and Audible Alarm Safeties At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when the control switch is moved to the "ICE" position. The red "POWER OK" LED indicates proper control voltage and remains on unless a control voltage problem occurs. The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below. Note that the order of the LEDs from the outer edge of the control board is 1, 4, 3, 2.
C. Settings and Adjustments NOTICE Dip switches are factory set. Failure to maintain factory settings may adversely affect performance and warranty coverage. For more information, contact your Hoshizaki Service Center. 1.
2. Harvest Timer (S4 dip switch 1 & 2) The harvest timer starts counting when the thermistor reaches 48°F (9°C) at the evaporator outlet and the control board reads 3.9 kΩ from the thermistor. The harvest timer is factory set, and generally no adjustment is required. However, a setting longer than the factory setting may be advised in cases where the drain provided at harvest needs to be prolonged for extra cleaning.
4. Pump-Out Frequency Control (S4 dip switch 5 & 6) The pump-out frequency control is factory set. Generally no adjustment is required. However, where water quality is bad and the icemaker needs a pump-out more often, the pump‑out frequency can be adjusted. The pump-out frequency control can be set to have a pump‑out occur every cycle, or every 2, 5, or 10 cycles. The first pump-out is dependent on S4 dip switch 5 & 6. See the table below. S4 Dip Switch Setting No. 5 No.
7. Freeze Timer (S4 dip switch 9 & 10) NOTICE Adjust to proper specification, or the icemaker may not operate correctly. The freeze timer setting determines the maximum allowed freeze time to prevent possible freeze-up issues. Upon termination of the freeze timer, the control board initiates the harvest cycle or pump-out cycle. After 2 consecutive freeze timer terminations, the control board shuts down the icemaker. In this case, see "II.G.3. Low Ice Production" for possible solutions.
D. Switches Two control switches are used to control operation in KMD and KML Series Modular Crescent Cubers. These switches are referred to as the "control switch" and the "service switch" and are located on the control box. 1. Control Switch The control switch has three positions: "OFF" for power off; "ICE" for icemaking, and "SERVICE" to activate the service switch. 2.
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. • Move the control switch to the "OFF" position and turn off the power supply. Place the disconnect in the "OFF" position. Lockout/Tagout to prevent the power supply from being turned back on inadvertently.
2. Brazing WARNING • R-404A itself is not flammable at atmospheric pressure and temperatures up to 176°F (80°C). • 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. • Do not use silver alloy or copper alloy containing arsenic. 1) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.
4) Close the low-side valve and high-side valve on the gauge manifold. 5) Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. For the required refrigerant charge, see the rating label inside the icemaker. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets AHRI Standard 700 (latest edition) be used.
B. Component Service Information NOTICE When replacing a component listed below, see the notes to help ensure proper operation. Component Compressor Notes 1 phase: Install a new start capacitor, run capacitor, and start relay. 3 phase: Install a new magnetic contactor. Thermostatic • Attach the thermostatic expansion valve bulb to the suction line in the same location as Expansion Valves the previous bulb. • The bulb should be between the 10 and 2 o'clock positions on the tube.
V. Maintenance 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 WARNING • Only qualified service technicians should service the appliance. • To reduce the risk of electric shock, do not touch the control switch or service switch with damp hands • Before servicing: Move the control switch to the "OFF" position and turn off the power supply.
VI. Preparing the Appliance for Periods of Non-Use NOTICE • When storing the appliance for an extended time or in sub-freezing temperatures, follow the instructions below to prevent damage. • The pump motor is energized continuously when the control switch is in the "SERVICE" position. When the appliance is not used for two or three days under normal conditions, it is sufficient to move the control switch to the "OFF" position.
3. On water-cooled model, remove the water from the water-cooled condenser: 1) Make sure the power supply is off, then remove the front panel and right side panel. 2) Close the condenser water supply line shut-off valve. If connected to a closed loop system, also close the condenser return line shut-off valve. 3) Open the condenser water supply line drain valve. If connected to a closed loop system, also open the condenser return line drain valve.
VII. 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.
VIII. Technical Information We reserve the right to make changes in specifications and design without prior notice. A. Specification and Performance Data Sheets Pressure data is recorded at 5 min. into freezing cycle. The data not in bold should be used for reference only. 1. KMD-460MAH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.
2. KMD-460MWH Specification Sheet AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 8.5A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 800(4.11) 770(3.67) WATER gal./24HR (gal./100 lbs.) 79(16.9) 141(28.0) WATER COOLED CONDENSER 639(136) 303(60) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 9.4 lbs. (4.3 kg) 432pcs. BIN CONTROL SYSTEM Mechanical Bin Control REFRIGERANT CHARGE R404A, 0 lb. 14.1 oz.
3. KMD-530MAH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Performance Data Sheet APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal./day m3/day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min.
4. KMD-530MWH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) WATER COOLED CONDENSER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Performance Data Sheet 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.
5. KMD-530MRH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Performance Data Sheet APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal./day m3/day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min.
6. KML-250MAH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE 115/60/1 8.2A (5 Min. Freeze AT 104°F/WT 80°F) 20 A 20 A 90/70°F 70/50°F 813 (8.2) 755 (5.9) 84 (35.2) 194 (63.1) 6.6 lbs. (3.0 kg) 360 pcs. Thermostatic Bin Control R-404A, 1 lb. 2 oz.
7. KML-250MWH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) WATER COOLED CONDENSER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE 115/60/1 7.5 A (5 Min. Freeze AT 104°F/WT 80°F) 20 A 20 A 90/70°F 70/50°F 0 (0.00) 0 (0.0) 252 (0.0) 21 (284.0) 767 (7) 21 (737) 6.6 lbs. (3.0 kg) 360 pcs. Thermostatic Bin Control R-404A, 14.1 oz.
8. KML-351MAH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE 115/60/1 7.4 A (5 Min. Freeze AT 104°F/WT 80°F) 20 A 20 A 90/70°F 70/50°F 750(6.4) 70/21(0.0) 57(20.3) 10(0.0) 8 lbs. (3.6 kg) 360pcs. Thermostatic Bin Control R404A, 1 lb. 9.4 oz. (720g) Performance Data Sheet APPROXIMATE ICE PRODUCTION PER AMBIENT TEMP.
9. KML-351MWH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) WATER COOLED CONDENSER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Performance Data Sheet APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal./day m3/day FREEZING CYCLE TIME min.
10. KML-451MAH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Performance Data Sheet 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.
11. KML-451MWH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) POTABLE WATER gal./24HR (gal./100 lbs.) WATER COOLED CONDENSER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE 115/60/1 9.8 A (5 Min. Freeze AT 104°F/WT 80°F) 20 A 20 A 90/70°F 70/50°F 950 (5.5) 920 (5.3) 87 (20.9) 124 (29.9) 432 (104) 234 (57) 7.2 lbs. (3.3 kg) 360pcs. Thermostatic Bin Control R404A, 0 lb.
12. KML-631MAH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Performance Data Sheet APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal./day m3/day FREEZING CYCLE TIME min. HARVEST CYCLE TIME min.
13. KML-631MWH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) WATER COOLED CONDENSER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM REFRIGERANT CHARGE Permormance Data Sheet APPROXIMATE ICE PRODUCTION PER 24 HR. lbs./day kg./day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal./day m3/day FREEZING CYCLE TIME min.
14. KML-631MRH Specification Sheet AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) WATER gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE BIN CONTROL SYSTEM CONDENSER REFRIGERANT CHARGE 208-230/60/1 (3 wire with neutral for 115V) 7.6 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A 20 A 90/70°F 70/50°F 1310(5.3) 1170(4.4) 96(16.0) 190(29.5) 10.7 lbs. (4.8 kg) 480 pcs.
B-1 and Later B-1 and Later C-1 and Later B-1 and Later B-1 and Later Cut-out Cut-in * *High-Pressure Switch Air-Cooled Model Water-Cooled Model 21.3 384±21.3 412± 0 PSIG 0 PSIG 327±21.3 PSIG 284±21.3 PSIG B. Wiring Diagrams 1.
Cut-out Cut-in * * High-Pressure Switch Air-Cooled Model Water-Cooled Model 21.3 384±21.3 412± 0 PSIG 0 PSIG 327±21.3 PSIG 284±21.
* * High-Pressure Switch Remote Air-Cooled Model Cut-out 412±21.3 0 PSIG Cut-in 327±21.
Cut-out Cut-in * High-Pressure Switch Air-Cooled and Water-Cooled Model Remote Air-Cooled Models 384±21.3 412±21.3 0 PSIG 0 PSIG 327±21.3 PSIG 284±21.3 PSIG * 2.
Cut-out Cut-in * * High-Pressure Switch Air-Cooled Model Water-Cooled Model 384±21.3 412±21.3 0 PSIG 0 PSIG 327±21.3 PSIG 284±21.
* High-Pressure Switch Remote Air-Cooled Model Cut-out 412±21.3 0 PSIG Cut-in 327±21.
* High-Pressure Switch Remote Air-Cooled Model Cut-out 412±21.3 0 PSIG Cut-in 327±21.
