HOSHIZAKI MODULAR CRESCENT CUBER MODELS …

1 HOSHIZAKIMODULAR CRESCENT CUBERSERVICE MANUALKML F SERIESKML H SERIESMODELSNO.:ISSUED:REVISED:AUG. 18, 1999 JAN. 13, 2004730852 IMPORTANTOnly qualified service technicians should attempt to service or maintain this service or maintenance should be undertaken until the technician has thoroughlyread this Service AMERICA, Highway 74 SouthPeachtree City, GA 30269 Attn: HOSHIZAKI Technical Support DepartmentPhone: 1-800-233-1940 Technical Service(770) 487-2331 Fax:(770) 487-3360 NOTE: To expedite assistance, all correspondence/communication MUST include the following information: model Number Serial Number Complete and detailed explanation of the problemHOSHIZAKI provides this manual primarily to assist qualified service technicians in theservice and maintenance of the the reader have any questions or concerns which have not been satisfactorilyaddressed, please call or write to the HOSHIZAKI Technical Support Department Please review this manual.

2 It should be read carefully before the icemaker is servicedor maintenance operations performed. Only qualified service technicians should serviceand maintain the icemaker. This manual should be made available to the technicianprior to service or PAGEI. SPECIFICATIONS .. 61. KML-250 MAH (Air-cooled) ..62. KML-250 MWH (Water-cooled) .. 73. KML-350 MAF (Air-cooled) ..84. KML-350 MWF (Water-cooled) .. 95. KML-350 MAH (Air-cooled) .. 106. KML-350 MWH (Water-cooled; Serial #L00001J through M20060C).

3 117. KML-350 MWH (Beginning Serial #M30061E) .. 128. KML-450 MAF (Air-cooled) .. 139. KML-450 MWF (Water-cooled) .. 1410. KML-450 MAH (Air-cooled) .. 1511. KML-450 MWH (Water-cooled; Serial #L00001D through M10530B) .. 1612. KML-450 MWH (Beginning Serial #M20531D) .. 1713. KML-600 MAF (Air-cooled) .. 1814. KML-600 MWF (Water-cooled) .. 1915. KML-600 MRF (Remote air-cooled) .. 2016. KML-600 MAH (Air-cooled) .. 2117. KML-600 MWH (Water-cooled; Serial #L00001D through M10115C) .. 22 18. KML-600 MWH (Water-cooled; Beginning Serial #M10121E) .. 2319. KML-600 MRH (Remote air-cooled).

4 2420. CONDENSER UNIT, URC-7F .. 25II. GENERAL INFORMATION ..271. CONSTRUCTION ..27[a] KML-250 MAH, KML-350 MAF, KML-350 MAH, KML-450 MAF, 27[b] KML-250 MWH, KML-350 MWF, KML-350 MWH, KML-450 MWF, KML-450 MWH ..28[c] KML-600 MAF, KML-600 MAH .. 29[d] KML-600 MWF, KML-600 MWH .. 30[e] KML-600 MRF, KML-600 MRH .. 312. CONTROLLER BOARD .. 32[a] SOLID-STATE CONTROL .. 32[b] CONTROLLER BOARD .. 32[c] SEQUENCE ..36[d] CONTROLS AND ADJUSTMENTS .. 39[e] CHECKING CONTROLLER BOARD .. 433. SWITCHES .. 444. MECHANICAL BIN CONTROL .. 45[a] PROXIMITY SWITCH .. 45[b] EXPLANATION OF OPERATION .. 46[c] TROUBLESHOOTING.

5 464 III. TECHNICAL INFORMATION .. 471. WATER CIRCUIT AND REFRIGERANT CIRCUIT .. 47[a] AIR-COOLED MODELS .. 47[b] WATER-COOLED MODELS .. 48[c] REMOTE AIR-COOLED MODELS .. 492. WIRING DIAGRAMS .. 50[a] KML-250 MAH (Beginning Serial #L00001E, ending Serial #M10460F); .. KML-250 MWH (Beginning Serial #L10001K, ending Serial #M10090D) .. 50[b] KML-250 MAH (Beginning Serial #M20461G); .. KML-250 MWH (Beginning Serial #M20091G) .. 51[c] KML-350 MAF, KML-350 MWF .. 52[d] KML-350 MAH (Beginning Serial #L00001L, ending Serial #M10290F); .. KML-350 MWH (Beginning Serial #L00001J, ending Serial #M30080F).

6 53[e] KML-350 MAH (Beginning Serial #M20291G); .. KML-350 MWH (Beginning Serial #M40081G) .. 54[f] KML-450 MAF, KML-450 MWF .. 55[g] KML-450 MAH (Beginning Serial #L00101C, ending Serial #L00950G); .. KML-450 MWH (Beginning Serial #L00001D, ending Serial #L00200G) .. 56[h] KML-450 MAH (Beginning Serial #L20951H, ending Serial #M12770F); .. KML-450 MWH (Beginning Serial #L10201H, ending Serial #M20710F) .. 57[i] KML-450 MAH (Beginning Serial #M22771G); .. KML-450 MWH (Beginning Serial #M30711G) .. 57[j] KML-600 MAF, KML-600 MWF, KML-600 MRF .. 59[k] KML-600 MAH (Beginning Serial #L00001F, ending Serial #L00070F).

7 KML-600 MWH (Beginning Serial #L00001D, ending Serial #L00080E) .. KML-600 MRH (Beginning Serial #L00001F, ending Serial #L00050F) .. 60[l] KML-600 MAH (Beginning Serial #L10071H, ending Serial #M10460G); .. KML-600 MWH (Beginning Serial #L10081K, ending Serial #M10140E) .. KML-600 MRH (Beginning Serial #L10051H, ending Serial #M10350E) .. 61[m] KML-600 MAH (Beginning Serial #M2_ _ _ _ _); .. KML-600 MWH (Beginning Serial #M20141F) .. KML-600 MRH (Beginning Serial #M20331E) .. 623. TIMING CHART .. 634. PERFORMANCE DATA .. 65[a] 65[b] KML-250 MWH .. 66[c] KML-350 MAF.

8 67[d] KML-350 MWF .. 68[e] 69[f] KML-350 MWH (Serial #L00001J through M20060C) .. 70[g] KML-350 MWH (Beginning Serial #M30061E) .. 715[h] 72[i] KML-450 MWF .. 73[j] KML-450 MAH ..74[k] KML-450 MWH (Serial #L00001D through M10530B) .. 75[l] KML-450 MWH (Beginning Serial #M20531D) .. 76[m] KML-600 MAF ..77[n] KML-600 MWF .. 78[o] KML-600 MRF ..79[p] 80[q] KML-600 MWH (Serial #L00001D through M10115C) .. 81[ r ] KML-600 MWH (Beginning Serial #M10121E) .. 82[s] KML-600 MRH .. 83IV. SERVICE DIAGNOSIS .. 841. NO ICE PRODUCTION ..842. EVAPORATOR IS FROZEN UP .. 873. LOW ICE PRODUCTION.

9 874. ABNORMAL ICE .. 885. OTHERS .. 89V. REMOVAL AND REPLACEMENT OF COMPONENTS .. 891. SERVICE FOR REFRIGERANT LINES .. 89[a] REFRIGERANT RECOVERY .. 89[b] EVACUATION AND RECHARGE [R-404A] .. 892. BRAZING .. 903. REMOVAL AND REPLACEMENT OF COMPRESSOR .. 914. REMOVAL AND REPLACEMENT OF DRIER .. 925. REMOVAL AND REPLACEMENT OF EXPANSION VALVE .. 936. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND .. LINE VALVE .. 947. REMOVAL AND REPLACEMENT OF EVAPORATOR .. 968. REMOVAL AND REPLACEMENT OF WATER-REGULATING VALVE .. - WATER COOLED model ONLY .. 979. ADJUSTMENT OF WATER-REGULATING VALVE .. - WATER COOLED model ONLY.

10 9810. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE .. REGULATOR ( ) - REMOTE AIR-COOLED model ONLY .. 9911. REMOVAL AND REPLACEMENT OF THERMISTOR .. 10012. REMOVAL AND REPLACEMENT OF FAN MOTOR .. 10113. REMOVAL AND REPLACEMENT OF WATER VALVE .. 10214. REMOVAL AND REPLACEMENT OF PUMP MOTOR .. 10315. REMOVAL AND REPLACEMENT OF SPRAY TUBES .. 103VI. CLEANING AND MAINTENANCE INSTRUCTIONS .. 1041. PREPARING THE ICEMAKER FOR LONG STORAGE .. 1042. CLEANING PROCEDURE .. 1063. SANITIZING PROCEDURE .. 1084. MAINTENANCE .. 1096I. SPECIFICATIONS1. KML-250 MAH72. KML-250 MWH83. KML-350 MAF94. KML-350 MWF105.