Aerco Benchmark 1.5LN User Manual

PR1: 10/18//12 AERCO International Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288 Page 5 of 166
Benchmark 1.5LN Low NOx Boiler
Installation, Operation and Maintenance Manual
OMM-0041_0E
GF-120
5.5 DIRECT DRIVE MODES....................................................................................................................... 64
5.5.1 Direct Drive Field Wiring ................................................................................................................ 65
5.5.2 Direct Drive Startup ....................................................................................................................... 65
5.6 BOILER MANAGEMENT SYSTEM (BMS) ........................................................................................... 65
5.6.1 BMS External Field Wiring ............................................................................................................. 66
5.6.2 BMS Setup and Startup ................................................................................................................. 66
5.7 COMBINATION CONTROL SYSTEM (CCS) ....................................................................................... 66
5.7.1 Combination Control System Field Wiring ..................................................................................... 67
5.7.2 Combination Control System Setup and Startup ........................................................................... 67
CHAPTER 6. SAFETY DEVICE TESTING ..........................................................................69
6.1 TESTING OF SAFETY DEVICES ......................................................................................................... 69
6.2 LOW GAS PRESSURE FAULT TEST .................................................................................................. 69
6.3 HIGH GAS PRESSURE TEST ............................................................................................................. 70
6.4 LOW WATER LEVEL FAULT TEST ..................................................................................................... 71
6.5 WATER TEMPERATURE FAULT TEST .............................................................................................. 71
6.6 INTERLOCK TESTS ............................................................................................................................. 73
6.6.1 REMOTE INTERLOCK .................................................................................................................. 73
6.6.2 DELAYED INTERLOCK ................................................................................................................ 73
6.7 FLAME FAULT TESTS ......................................................................................................................... 73
6.8 AIR FLOW FAULT TESTS .................................................................................................................... 75
6.9 SSOV PROOF OF CLOSURE SWITCH ............................................................................................... 76
6.10 PURGE SWITCH OPEN DURING PURGE ........................................................................................ 76
6.11 IGNITION SWITCH OPEN DURING IGNITION ................................................................................. 77
6.12 SAFETY PRESSURE RELIEF VALVE TEST ..................................................................................... 78
CHAPTER 7. MAINTENANCE ............................................................................................79
7.1 MAINTENANCE SCHEDULE ............................................................................................................... 79
7.2 IGNITER-INJECTOR ............................................................................................................................ 80
7.3 FLAME DETECTOR ............................................................................................................................. 82
7.4 COMBUSTION CALIBRATION & RSI REGULATOR ADJUSTMENT ................................................. 82
7.4.1 RSI Regulator Pressure ................................................................................................................. 82
7.5 SAFETY DEVICE TESTING ................................................................................................................. 85
7.6 BURNER ASSEMBLY INSPECTION ................................................................................................... 85
7.7 CONDENSATE DRAIN TRAP .............................................................................................................. 88
7.8 SHUTTING THE BOILER DOWN FOR AN EXTENDED PERIOD OF TIME ....................................... 89
7.9 PLACING THE BOILER BACK IN SERVICE AFTER A PROLONGED SHUTDOWN ......................... 90
CHAPTER 8. TROUBLESHOOTING GUIDE .......................................................................91
8.1 INTRODUCTION ................................................................................................................................... 91
8.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES .................................................. 101

Aerco Benchmark 1.5LN Specifications

General

Brand	Aerco
Model	Benchmark 1.5LN
Category	Boiler
Language	English