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3. KM-1601MRH3 with URC-21F

AC SUPPLY VOLTAGE

208-230/60/3

AMPERAGE

8.4 A ( 5 Min. Freeze AT 104°F / WT 80°F)

MINIMUM CIRCUIT AMPACITY

20 A

MAXIMUM FUSE SIZE

20 A

APPROXIMATE ICE PRODUCTION

Ambient

WATER TEMP. (°F)

PER 24 HR.

Temp.(°F)

lbs./day ( kg/day )

*1471 (667)

1448 (657)

1354 (614)

Reference without *marks

1453 (659)

1417 (643)

1290 (585)

1448 (657)

*1392 (631)

1277 (579)

100

1408 (639)

1365 (619)

1171 (531)

SHAPE OF ICE

Crescent Cube

ICE PRODUCTION PER CYCLE

28.0 lbs. (12.7 kg) 1440 pcs.

APPROXIMATE STORAGE CAPACITY

N/A

ELECTRIC & WATER CONSUMPTION

90/70°F

70/50°F

ELECTRIC W (kWH/100 lbs.)

2640(4.6)

2410(3.9)

WATER gal./24HR (gal./100 lbs.)

267(19.2)

491(33.4)

EXTERIOR DIMENSIONS (WxDxH)

30" x 27.4" x 41.7" (762 x 695 x 1059 mm)

EXTERIOR FINISH

Stainless Steel, Galvanized Steel (Rear)

WEIGHT

Net 259 lbs. (117 kg), Shipping 316 lbs. (143 kg)

CONNECTIONS - ELECTRIC

Permanent - Connection

- WATER SUPPLY

Inlet

1/2" FPT

- DRAIN

Outlet

3/4" FPT

3/8" OD Tube

CUBE CONTROL SYSTEM

Float Switch

HARVESTING CONTROL SYSTEM

Hot Gas and Water, Thermistor and Timer

ICE MAKING WATER CONTROL

Timer Controlled. Overflow Pipe

COOLING WATER CONTROL

N/A

BIN CONTROL SYSTEM

Thermostat

COMPRESSOR

Hermetic, Model CS18K6E-TF5

CONDENSER

Air-Cooled Remote, Condenser Unit URC-21F

EVAPORATOR

Vertical type, Stainless Steel and Copper

REFRIGERANT CONTROL

Thermostatic Expansion Valve

Condensing Pressure Regulator on URC-21F

REFRIGERANT CHARGE

R-404A, 24 lb. 4.0 oz. (11,000g)

(Icemaker 14 lbs. 8.8 oz. Cond. Unit 9 lb. 11.2 oz.)

DESIGN PRESSURE

High 467PSIG, Low 230PSIG

P.C. BOARD CIRCUIT PROTECTION

High Voltage Cut-out ( Internal )

COMPRESSOR PROTECTION

Auto-reset Overload Protector ( Internal )

REFRIGERANT CIRCUIT PROTECTION

Auto-reset High Pressure Control Switch

LOW WATER PROTECTION

Float Switch

ACCESSORIES -SUPPLIED

N/A

-REQUIRED

Ice Dispenser or Ice Storage Bin, Remote Condenser Unit

OPERATING CONDITIONS

VOLTAGE RANGE

187 - 253 V

AMBIENT TEMP.

45 -100° F

WATER SUPPLY TEMP.

45 - 90° F

WATER SUPPLY PRESSURE

10 - 113 PSIG

Note: We reserve the right to make changes in specifications and design without prior

notice.

Содержание KM-1601MRH/3

Страница 1: ...Hoshizaki A Superior Degree of Reliability www hoshizaki com Models KM 1601MRH 3 Modular Crescent Cuber Hoshizaki America Inc Number 73129 Issued 6 16 2006 Revised 3 28 2011 SERVICE MANUAL...

Страница 2: ...maintenance of the icemaker Should the reader have any questions or concerns which have not been satisfactorily addressed please call write or send an e mail message to the Hoshizaki Technical Support...

Страница 3: ...6 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 Harvest Timer dip switch 1 2 19 c Pump Out Timer dip switch 3 4...

Страница 4: ...oat Switch Check 33 2 Float Switch Cleaning 34 E Thermistor Check 35 F Diagnostic Charts 36 1 No Ice Production 36 2 Evaporator is Frozen Up 39 3 Low Ice Production 40 4 Abnormal Ice 41 5 Other 41 V R...

Страница 5: ...and must meet national state and local electrical code requirements Failure to meet these code requirements could result in death electric shock serious injury fire or severe damage to equipment This...

Страница 6: ...tlet 3 4 FPT 3 8 OD Tube CUBE CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Thermistor and Timer ICE MAKING WATER CONTROL Timer Controlled Overflow Pipe COOLING WATER CONTROL...

Страница 7: ...316 lbs 143 kg CONNECTIONS ELECTRIC Permanent Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Outlet 3 4 FPT 3 8 OD Tube CUBE CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Therm...

Страница 8: ...E CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Thermistor and Timer ICE MAKING WATER CONTROL Timer Controlled Overflow Pipe COOLING WATER CONTROL N A BIN CONTROL SYSTEM Ther...

Страница 9: ...43 kg CONNECTIONS ELECTRIC Permanent Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Outlet 3 4 FPT 3 8 OD Tube CUBE CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Thermistor and...

Страница 10: ...s 72 kg Shipping 169 lbs 77 kg URC 22F Net 134 lbs 61 kg Shipping 145 lbs 66 kg CONNECTIONS ELECTRIC Permanent Connection REFRIGERANT Discharge Line 1 1 16 12 UNF Fitting 10 PARKER Liquid Line 5 8 18...

Страница 11: ...let Water Valve Water Supply Inlet Hot Gas Valve Junction Box Check Valve Expansion Valve Line Valve Receiver Capacitor Box KM 1601MRH Transformer Box KM 1601MRH3 Drier Compressor Cleaning Valve Contr...

Страница 12: ...12 2 URC 21F URC 22F Junction Box Headmaster C P R Condenser Fan Motors Liquid Line Connection Fan Blade Condenser Discharge Line Connection Fan Blade...

Страница 13: ...harvest whichever is shorter When the harvest timer completes its count down the harvest cycle is complete and the freeze cycle starts The minimum total time allowed by the control board for a comple...

Страница 14: ...during harvest for a maximum of 6 minutes or the length of harvest whichever is shorter When the harvest timer completes its count down the harvest cycle is complete and the next freeze cycle starts...

Страница 15: ...continues HGV energized FMS de energized F S Check F S Check Maximum inlet water valve time 6 minutes Maximum harvest time 20 minutes Thermistor in control 1 to 3 minute timer in control Minimum freez...

Страница 16: ...ailure due to static discharge It is especially important to touch the metal part of the unit when handling or replacing the control board 3 Do not touch the electronic devices on the control board or...

Страница 17: ...e 3 Line Valve Self Contained Fan Motor FMS 4 Pump Motor icemaking 5 Pump Motor drain 6 Water Valve 7 10 Power line bin control 8 Open Switch for C and ALPINE control board service control boards only...

Страница 18: ...every 3 sec Type of Alarm Notes 1 High Evaporator Temp temperature 127 F 53 C Check for harvest problem stuck HGV or relay hot water entering unit stuck HM or shorted thermistor 2 Harvest Backup Time...

Страница 19: ...on b Harvest Timer dip switch 1 2 The harvest timer starts counting when the thermistor reads 48 F 9 C at the evaporator outlet and sends a 3 9 k signal to the control board No adjustment is required...

Страница 20: ...he 2nd harvest after startup Then depending on the pump out frequency control setting dip switch 5 6 pump out occurs every cycle or every 2nd 5th or 10th cycle d Pump Out Frequency Control dip switch...

Страница 21: ...timer machine initiates the harvest cycle After 2 consecutive timer terminations machine will shut down possibly indicating a problem The freeze timer is factory adjusted and no adjustment is require...

Страница 22: ...22 III Technical Information A Water Circuit and Refrigeration Circuit 1 KM 1601MRH KM 1601MRH3...

Страница 23: ...23 B Wiring Diagrams 1 KM 1601MRH High Pressure Switch Cut out 412 21 3 PSIG Cut in 327 21 3 PSIG 0 Transformer Output 10 5V at 115V...

Страница 24: ...24 2 KM 1601MRH3 High Pressure Switch Cut out 412 21 3 PSIG Cut in 327 21 3 PSIG 0 Transformer Output 10 5V at 115V...

Страница 25: ...3 2 CONDENSER VOLUME 441 CU IN URC 21F Note Pressure data is recorded at 5 minutes into freezing cycle The data not in bold should be used for reference only TOTAL HEAT OF REJECTION FROM CONDENSER 23...

Страница 26: ...46 3 2 PSIG kg cm2 G 100 38 40 2 8 44 3 1 48 3 4 CONDENSER VOLUME 214 CU IN 23 24 25 2 9 5 4 3 8 4 7 3 8 3 0 4 8 22 APPROXIMATE ICE PRODUCTION PER 24 HR APPROXIMATE ELECTRIC CONSUMPTION APPROXIMATE W...

Страница 27: ...ENSER VOLUME 441 CU IN URC 21F Note Pressure data is recorded at 5 minutes into freezing cycle The data not in bold should be used for reference only 23 24 25 3 0 5 7 4 0 4 9 3 9 3 1 5 1 23 APPROXIMAT...

Страница 28: ...14 8 233 16 4 249 17 5 80 27 228 16 0 264 18 6 270 19 0 90 32 233 16 4 290 20 4 300 21 1 PSIG kg cm 2 G 100 38 231 16 2 292 20 6 310 21 8 70 21 37 2 6 39 2 7 41 2 9 80 27 39 2 7 41 2 9 44 3 1 90 32 39...

Страница 29: ...warmer water temperatures Before conducting a 10 minute checkout check for correct installation proper voltage per unit nameplate and adequate water supply As you go through the procedure check to ass...

Страница 30: ...e hot gas valve is still open or if the expansion valve is not opening properly if the water valve is continuing to fill the reservoir if there are improper unit pressures an inoperative compressor or...

Страница 31: ...OK LED is off check the fuse control switch contacts high pressure switch and control transformer secondary circuit Transformer output is 10 5V at 115V primary input If the secondary circuit has prope...

Страница 32: ...the thermostatic bin control switch is open the control board red POWER OK LED is off 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Clear any...

Страница 33: ...8 Reconnect the black float switch connector to the control board BLACK K5 connector then replace the control box cover in its correct position 9 Move the control switch to the ICE position Replace th...

Страница 34: ...ot from the bottom of the float switch assembly See Fig 2 6 Remove the retainer rod from the bottom of the float switch assembly then remove the float Be careful not to bend the retainer rod excessive...

Страница 35: ...replace the thermistor See V B Important Notes for Component Replacement If inside the normal reading continue to the next step 7 Replace the thermistor in its correct position See V B Important Note...

Страница 36: ...nd replace 4 Voltage too high or too low 4 Check and get recommended voltage b Fuse Inside fused disconnect if any 1 Blown 1 Check for short circuit and replace c Control Switch 1 OFF position 1 Move...

Страница 37: ...or off and pressure control opens and closes frequently to finally operate high temperature safety 1 beep alarm 2 Check and get recommended pressure k Inlet Water Valve 1 Mesh filter or orifice gets c...

Страница 38: ...ze cycle a Inlet Water Valve 1 Diaphragm does not close 1 Check for water leaks with icemaker off b Control Board 1 Defective 1 See IV B Control Board Check 5 No water comes from spray tubes Water pum...

Страница 39: ...aster C P R Remote Unit 1 Not operating properly and liquid line temperature too warm 1 Replace headmaster 2 Evaporator is Frozen Up Problem Possible Cause Remedy 1 Freeze cycle time is too long a Flo...

Страница 40: ...valve 3 Check for loose connection or open and replace f Ice Cube Guide 1 Out of position and ice trapped 1 Place in position g Water Supply Line 1 Too small requires 1 2 OD line dedicated per machin...

Страница 41: ...r or filter 5 Other Problem Possible Cause Remedy 1 Icemaker will not stop when bin is filled with ice a Bin Control Thermostat 1 Set too cold 1 Adjust warmer 2 Defective 2 Replace 2 Abnormal noise a...

Страница 42: ...electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG DO NO...

Страница 43: ...a new drier every time the sealed refrigeration system is opened 2 Do not replace the drier until after all other repair or replacement has been made Install the new drier with the arrow on the drier...

Страница 44: ...vent fractionation Place the service cylinder on the scales if the service cylinder is not equipped with a dip tube invert the service cylinder then place it on the scales Open the high side valve on...

Страница 45: ...replacing the hot gas valve Use copper tube of the same diameter and length when replacing valve lines Fan Motor Install a new capacitor Pump Motor Install a new capacitor Thermistor Attach the new th...

Страница 46: ...als and damage to the icemaker do not use ammonia type cleaners 3 Always wear liquid proof gloves to prevent the cleaning and sanitizing solutions from coming into contact with skin CAUTION 1 The clea...

Страница 47: ...from the bottom of the assembly b Remove the retainer rod from the bottom of the float switch assembly then remove the float Be careful not to bend the retainer rod excessively when removing it c Wipe...

Страница 48: ...oughly Note If you do not sanitize the icemaker go to step 9 in 2 Sanitizing Procedure 2 Sanitizing Procedure Following Cleaning Procedure 1 Dilute a 5 25 sodium hypochlorite solution chlorine bleach...

Страница 49: ...cleaning may be required depending on the location of the condenser unit C Preparing the Icemaker for Long Storage WARNING When shutting off the icemaker for an extended time drain out all water from...

Страница 50: ...upply 2 Move the control switch to the OFF position 3 Drain the water tank by removing the insulation panel and the rubber cap covering the overflow pipe in the water tank Remove the overflow pipe by...

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