Hoshizaki KM1601SRH350 Скачать руководство пользователя страница 1

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Hoshizaki

“A Superior Degree

of Reliability”

www.hoshizaki.com

Models
KM1601SRH350
KM1900SAH350

KM2100SRH350

Stackable Crescent Cuber

Hoshizaki America, Inc.

SERVICE MANUAL

™

Number: 73174
Issued:11-13-2009

Содержание KM1601SRH350

Страница 1: ...Hoshizaki A Superior Degree of Reliability www hoshizaki com Models KM1601SRH350 KM1900SAH350 KM2100SRH350 Stackable Crescent Cuber Hoshizaki America Inc SERVICE MANUAL Number 73174 Issued 11 13 2009...

Страница 2: ...intenance 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 D...

Страница 3: ...mp Out Cycle 8 5 Normal Harvest Cycle 9 6 Sequence Flow Chart 10 C Control Board 11 1 Control Board Layout 12 2 Features 13 a Maximum Water Supply Period 6 minutes 13 b Harvest Backup Timer and Freeze...

Страница 4: ..._________ 37 3 Evacuation and Recharge R 404A ______________________ 38 B Removal and Replacement of Compressor 39 C Removal and Replacement of Expansion Valve 40 D Removal and Replacement of Hot Gas...

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Страница 8: ...the end of harvest the control board checks the position of F S and proceeds to the freeze cycle if it is closed or calls for a 1 minute fill if it is open 3 Freeze Cycle LED 1 is on Comp and FMR cont...

Страница 9: ...l board for a complete harvest cycle is 2 minutes WV is open during harvest for a maximum of 6 minutes or the length of harvest whichever is shorter At the end of harvest the control board checks the...

Страница 10: ...nute timer in control F S in control Initial startup always begins here If F S is open compressor stops and cycle returns to 1 minute fill Sequence Flow Chart and Component Operation Components Energi...

Страница 11: ...charge It is especially important to touch the metal part of the unit before handling or replacing the board 3 Do not touch the electronic devices on the board or the back of the board to prevent dama...

Страница 12: ...ctor 2 Hot Gas Valve 3 Liquid Line Valve Self Contained Fan Motors FMS 4 Pump Motor icemaking 5 Pump Motor pump out 6 Inlet Water Valve 7 10 Power Supply 8 Open Switch for C board and ALPINE board ser...

Страница 13: ...power on to reset the safety d Low Water Safety The control board checks the position of the float switch at the end of the initial one minute water fill cycle and at the end of each harvest cycle If...

Страница 14: ...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 Timer...

Страница 15: ...uency Control 5 6 Pump Out Timer 3 4 Harvest Timer 1 2 S4 Dip Switch Normally off 7 8 b Harvest Timer S4 dip switch 1 2 The harvest timer starts counting when the thermistor reads 48 F 9 C at the evap...

Страница 16: ...imer at pump out Pump out always occurs on the 2nd harvest after startup Then depending on the pump out frequency control setting S4 dip switch 5 6 pump out occurs every cycle or every 2nd 5th or 10th...

Страница 17: ...LED should be on If the LED is on proceed to step 3 Otherwise see a and b below a POWER OK LED If the red POWER OK LED is off check the control transformer secondary circuit The transformer secondary...

Страница 18: ...ck the resistance between thermistor leads Normal reading is within 4 7 to 6 2 k Replace the thermistor if it is outside the normal reading E Float Switch The float switch is used to determine that th...

Страница 19: ...on the float switch Scale on the switch can cause the float to stick In this case the float switch should be cleaned 1 Turn off the power supply 2 Remove the front panel and move the control switch t...

Страница 20: ...continuously even if the ice storage bin is filled with ice Setting in the prohibited range might cause severe damage to the icemaker resulting in failure No adjustment is required under normal use a...

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Страница 27: ...w water safety protection during initial start up and at the end of each harvest Diagnosis If the inlet water valve does not open check for no supply voltage at the inlet water valve terminals bad coi...

Страница 28: ...on model and conditions Cycle times and pressures should follow performance data provided in this manual 6 Pump Out Cycle LEDs 1 4 3 2 are on The 1st pump out occurs after the 1st freeze cycle and eve...

Страница 29: ...pressure too low 1 Check and get recommended pressure e Bin Control Thermostat 1 Tripped with bin filled with ice 1 Remove ice 2 Ambient temperature too cool 2 Increase ambient temperature 3 Set too w...

Страница 30: ...d freeze timer safety operates 3 beep alarm 1 Check for hot gas valve stuck open and replace m Inlet Water Valve 1 Mesh filter or orifice gets clogged and water supply cycle does not finish 1 Clean 2...

Страница 31: ...rocedure 4 Water continues to be supplied in freeze cycle a Water Pressure 1 Too high 1 Reduce b Inlet Water Valve 1 Diaphragm does not close 1 Check for water leaks with icemaker off c Control Board...

Страница 32: ...Check and replace e Inlet Water Valve 1 Inlet water valve is wide open during freeze 1 Check for water leaks with icemaker off f Expansion Valve 1 Bulb loose 1 Secure bulb 2 Operating erratically 2 Ch...

Страница 33: ...1 Too cool 1 Increase temperature c Water Supply Line 1 Water pressure too low 1 Check and get recommended pressure d Water System 1 Water supply line too small requires 1 2 OD line dedicated per mac...

Страница 34: ...r off b Float Switch 1 Float switch does not move freely 1 Clean or replace See II E Float Switch 2 Defective switch 2 Check and replace See II E Float Switch c Evaporator 1 Scaled up 1 Clean 2 Damage...

Страница 35: ...s Valve 1 Does not open or opens partially 1 Check and replace g Expansion Valve 1 Wide open in harvest 1 Check and replace h Water Regulating Valve water cooled models 1 Open during harvest 1 Adjust...

Страница 36: ...hen bin is filled with ice a Bin Control Thermostat 1 Set too cold 1 See II F Bin Control 2 Defective 2 Replace 2 Abnormal noise a Pump Motor 1 Bearings worn out 1 Replace b Fan Motor except water coo...

Страница 37: ...re with pressurized air for leak testing 1 Refrigerant Recovery The icemaker unit is provided with refrigerant service valves Using proper refrigerant practices recover the refrigerant from the servic...

Страница 38: ...for evacuation and refrigerant charge should be exclusively for POE oils 2 Turn on the vacuum pump Open the service manifold valves Never allow the oil in the vacuum pump to flow backwards 3 Allow the...

Страница 39: ...he hold down bolts washers and rubber grommets 7 Remove the compressor Unpack the new compressor package 8 Attach the rubber grommets of the prior compressor to the new compressor 9 Place the compress...

Страница 40: ...s protect the valve body by using a damp cloth to prevent the valve from overheating Do not braze with the valve body exceeding 250 F 121 C 8 Use an electronic leak detector or soap bubbles to check f...

Страница 41: ...tings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG CAUTION Always protect the valve body by using a damp cloth to prevent the valve from overheating Do not braze with the valve...

Страница 42: ...s 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 NOT use R 404A as a mixture with pressurized air for leak tes...

Страница 43: ...lectronic 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 NOT...

Страница 44: ...ontainer 4 Remove the condenser unit panels 5 Disconnect the condenser inlet and outlet piping 6 Remove the screws securing the condenser to the base of the unit then remove the condenser 7 Remove the...

Страница 45: ...the refrigerant charge 3 Check that the condenser drain temperature is stable K Removal and Replacement of Headmaster Condensing Pressure Regulator C P R Remote Air Cooled Models IMPORTANT Always ins...

Страница 46: ...ays use the recommended foam insulation non absorbent type or equivalent 4 Do not shorten or cut the thermistor leads 1 Turn off the power supply 2 Remove the panels 3 Remove the control box cover 4 D...

Страница 47: ...lace the removed parts in the reverse order of which they were removed 7 Replace the panels in their correct positions 8 Replace the junction box cover in its correct position remote air cooled models...

Страница 48: ...d discharge hoses 6 Remove the closed end connectors from the pump motor leads Disconnect the ground wire 7 Remove the two screws and the pump motor bracket 8 Remove the pump housing and check the imp...

Страница 49: ...re 1 KM1601SRH350 Dilute 27 fl oz 800 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc with 5 gal 19 l of warm water KM1900SAH350 and KM2100SRH350 Dilute 38 fl oz...

Страница 50: ...rect positions 11 Turn on the power supply to start the washing process 12 Turn off the power supply after 30 minutes 13 Remove the front panel and the insulation panel 14 Remove the cap located on th...

Страница 51: ...e control switch is in the WASH position 4 Turn on the power supply to start the sanitizing process 5 Turn off the power supply after 15 minutes 6 Remove the front panel and the insulation panel 7 Rem...

Страница 52: ...uired by using a brush or vacuum cleaner More frequent cleaning may be required depending on location C Preparing the Icemaker for Long Storage IMPORTANT When shutting off the icemaker for an extended...

Страница 53: ...ve elapsed since you turned off the power supply Make sure the control switch is in the ICE position Replace the front panel in its correct position and turn on the power supply 6 Blow the icemaker wa...

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