AERCO BMK 2.0 LN Natural Gas (SN G-11-1861 and above) - Manual (Page 5)

GF-123
Benchmark 2.0LN Boiler
OMM-0046_0E Installation, Operation & Maintenance Manual
PR1 08/20/12 AERCO International Inc.● 100 Oritani Dr. ● Blauvelt, NY 10913. ● Ph: 800-526-0288 Page 5 of 170
5.6 BOILER MANAGEMENT SYSTEM (BMS)....................................................................................... 69
5.6.1 BMS External Field Wiring .................................................................................................... 70
5.6.2 BMS Setup and Startup ........................................................................................................ 70
5.7 COMBINATION CONTROL SYSTEM (CCS) ................................................................................... 70
5.7.1 Combination Control System Field Wiring ............................................................................ 71
5.7.2 Combination Control System Setup and Startup .................................................................. 71
CHAPTER 6. SAFETY DEVICE TESTING ........................................................................................... 73
6.1 TESTING OF SAFETY DEVICES .................................................................................................... 73
6.2 LOW GAS PRESSURE FAULT TEST ............................................................................................. 73
6.3 HIGH GAS PRESSURE TEST ......................................................................................................... 74
6.4 LOW WATER LEVEL FAULT TEST ................................................................................................. 75
6.5 WATER TEMPERATURE FAULT TEST .......................................................................................... 75
6.6 INTERLOCK TESTS......................................................................................................................... 76
6.6.1 REMOTE INTERLOCK ......................................................................................................... 77
6.6.2 DELAYED INTERLOCK ........................................................................................................ 77
6.7 FLAME FAULT TESTS ..................................................................................................................... 77
6.8 AIR FLOW FAULT TESTS ............................................................................................................... 78
6.9 SSOV PROOF OF CLOSURE SWITCH .......................................................................................... 79
6.10 PURGE SWITCH OPEN DURING PURGE ................................................................................... 80
6.11 IGNITION SWITCH OPEN DURING IGNITION ............................................................................. 80
6.12 SAFETY PRESSURE RELIEF VALVE TEST ................................................................................ 81
CHAPTER 7. MAINTENANCE .............................................................................................................. 83
7.1 MAINTENANCE SCHEDULE ........................................................................................................... 83
7.2 IGNITER-INJECTOR ........................................................................................................................ 84
7.3 FLAME DETECTOR ......................................................................................................................... 86
7.4 COMBUSTION CALIBRATION & RSI REGULATOR ADJUSTMENT ............................................. 87
7.4.1 RSI Regulator Pressure ........................................................................................................ 87
7.4.1.1 RSI Regulator Pressure Test
........................................................................................ 87
7.4.1.2 RSI Regulator Calibration
.............................................................................................. 88
7.5 SAFETY DEVICE TESTING ............................................................................................................. 89
7.6 BURNER ASSEMBLY INSPECTION ............................................................................................... 89
7.7 CONDENSATE DRAIN TRAP .......................................................................................................... 92
7.8 SHUTTING THE BOILER DOWN FOR AN EXTENDED PERIOD OF TIME .................................. 93
7.9 PLACING THE BOILER BACK IN SERVICE AFTER A PROLONGED SHUTDOWN .................... 93
CHAPTER 8. troubleshooting guide .................................................................................................. 95
8.1 INTRODUCTION ......................................................................................................................... 95
8.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES ........................................ 107
CHAPTER 9. RS232 COMMUNICATION ........................................................................................... 111
9.1 INTRODUCTION ............................................................................................................................ 111
9.1.1 Aquiring the PuTTY Application .......................................................................................... 111
9.1.2 Logging on to a Remote Machine Using PuTTY ................................................................ 111
9.1.3 Running a Command on a Remote Machine Using PuTTY ............................................... 112
9.2 RS232 COMMUNICATION SETUP ............................................................................................... 113
9.3 MENU PROCESSING UTILIZING RS232 COMMUNICATION ..................................................... 113