AERCO BMK 2.0 LN October 2012 - Manual (Page 5)

GF-123
Benchmark 2.0LN Boiler
OMM-0046_0F Installation, Operation & Maintenance Manual
PR1 10/17/12 AERCO International Inc.● 100 Oritani Dr. ● Blauvelt, NY 10913. ● Ph: 800-526-0288 Page 5 of 172
5.5 DIRECT DRIVE MODES .................................................................................................................. 70
5.5.1 Direct Drive Field Wiring ....................................................................................................... 71
5.5.2 Direct Drive Startup ............................................................................................................... 71
5.6 BOILER MANAGEMENT SYSTEM (BMS)....................................................................................... 71
5.6.1 BMS External Field Wiring .................................................................................................... 72
5.6.2 BMS Setup and Startup ........................................................................................................ 72
5.7 COMBINATION CONTROL SYSTEM (CCS) ................................................................................... 72
5.7.1 Combination Control System Field Wiring ............................................................................ 73
5.7.2 Combination Control System Setup and Startup .................................................................. 73
CHAPTER 6. SAFETY DEVICE TESTING ........................................................................................... 75
6.1 TESTING OF SAFETY DEVICES .................................................................................................... 75
6.2 LOW GAS PRESSURE FAULT TEST ............................................................................................. 75
6.3 HIGH GAS PRESSURE TEST ......................................................................................................... 76
6.4 LOW WATER LEVEL FAULT TEST ................................................................................................. 77
6.5 WATER TEMPERATURE FAULT TEST .......................................................................................... 77
6.6 INTERLOCK TESTS......................................................................................................................... 78
6.6.1 REMOTE INTERLOCK ......................................................................................................... 79
6.6.2 DELAYED INTERLOCK ........................................................................................................ 79
6.7 FLAME FAULT TESTS ..................................................................................................................... 79
6.8 AIR FLOW FAULT TESTS ............................................................................................................... 80
6.9 SSOV PROOF OF CLOSURE SWITCH .......................................................................................... 81
6.10 PURGE SWITCH OPEN DURING PURGE ................................................................................... 82
6.11 IGNITION SWITCH OPEN DURING IGNITION ............................................................................. 82
6.12 SAFETY PRESSURE RELIEF VALVE TEST ................................................................................ 83
CHAPTER 7. MAINTENANCE .............................................................................................................. 85
7.1 MAINTENANCE SCHEDULE ........................................................................................................... 85
7.2 IGNITER-INJECTOR ........................................................................................................................ 86
7.3 FLAME DETECTOR ......................................................................................................................... 88
7.4 COMBUSTION CALIBRATION & RSI REGULATOR ADJUSTMENT ............................................. 89
7.4.1 RSI Regulator Pressure ........................................................................................................ 89
7.4.1.1 RSI Regulator Pressure Test ..............................................................................89
7.4.1.2 RSI Regulator Calibration ...................................................................................90
7.5 SAFETY DEVICE TESTING ............................................................................................................. 91
7.6 BURNER ASSEMBLY INSPECTION ............................................................................................... 91
7.7 CONDENSATE DRAIN TRAP .......................................................................................................... 94
7.8 SHUTTING THE BOILER DOWN FOR AN EXTENDED PERIOD OF TIME .................................. 95
7.9 PLACING THE BOILER BACK IN SERVICE AFTER A PROLONGED SHUTDOWN .................... 95
CHAPTER 8. TROUBLESHOOTING GUIDE ....................................................................................... 97
8.1 INTRODUCTION ......................................................................................................................... 97
8.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES ........................................ 109