Aerco Benchmark BMK 750 User Manual page 3

Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
CONTENTS
4.4 O SENSOR .......................................................................................................................................... 43
2
4.5 SAFETY DEVICE TESTING ................................................................................................................. 44
4.6 BURNER INSPECTION ........................................................................................................................ 44
4.6.1 BMK 750/1000 BURNER INSPECTION ............................................................................................................. 44
4.6.2 BMK 1500 - 3000 BURNER INSPECTION ......................................................................................................... 47
4.7 CONDENSATE DRAIN TRAP .............................................................................................................. 51
4.8 AIR FILTER CLEANING AND REPLACEMENT .................................................................................. 52
4.9 WATER CUTOFF (LWCO) CAPACITOR INTEGRITY TEST ............................................................... 53
4.9.1 Low Water Cutoff (LWCO) - Capacitor Electrical Short Test ........................................................................... 54
4.9.2 Low Water Cutoff (LWCO) - Standard C-More Test ........................................................................................ 55
4.10 SHUTTING BOILER DOWN FOR EXTENDED PERIOD ................................................................... 55
4.11 PLACING THE BOILER BACK IN SERVICE AFTER A PROLONGED SHUTDOWN ....................... 55
4.12 SPARK MONITOR (AC CURRENT TRANSDUCER) ......................................................................... 56
SECTION 5: TROUBLESHOOTING GUIDE ......................................................... 57
5.1 INTRODUCTION ................................................................................................................................... 57
5.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES .................................................... 69
APPENDIX A: BOILER MENU ITEM DESCRIPTIONS ............................................. 71
TABLE A-1: OPERATING MENU ITEM DESCRIPTIONS ......................................................................... 71
TABLE A-2: SETUP MENU ITEM DESCRIPTIONS ................................................................................... 73
TABLE A-3: CONFIGURATION MENU ITEM DESCRIPTIONS ................................................................ 74
TABLE A-4: TUNING MENU ITEM DESCRIPTIONS ................................................................................. 77
TABLE A-5: COMBUSTION CALIBRATION MENU ITEM DESCRIPTIONS ............................................. 78
TABLE A-6: CALIBRATION MENU ITEM DESCRIPTIONS ....................................................................... 79
APPENDIX B: STARTUP, STATUS, & FAULT MESSAGES ...................................... 83
STARTUP AND STATUS MESSAGES ...................................................................................................... 83
FAULT MESSAGES .................................................................................................................................... 84
APPENDIX C: SENSOR RESISTANCE/VOLTAGE CHART ........................................ 87
APPENDIX D: RECOMMENDED PERIODIC TESTING ............................................ 89
APPENDIX E: INDOOR/OUTDOOR RESET RATIO CHARTS .................................. 91
APPENDIX F: BENCHMARK 750/1000 PART LIST ............................................... 95
APPENDIX G: BENCHMARK 1500/2000 PART LIST ........................................... 103
APPENDIX H: BENCHMARK 2500/3000 PART LIST ........................................... 113
APPENDIX I: WIRING DIAGRAMS ................................................................... 127
APPENDIX J: C-MORE CONTROLLER VIEWS .................................................... 143
APPENDIX K: RECOMMENDED SPARES ........................................................... 145
OMM-0128_0C
GF-206-K
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
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11/29/2017