AERCO BMK 1.5 LN Dual Fuel Feb 2013 - Manual (Page 5)

PR2: 05/09/12 Page 5 of 162
Benchmark 1.5LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0043_0C
GF-121
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Indoor/ Outdoor Startup ........................................................................................... 59 5.2.4
5.3 CONSTANT SETPOINT MODE .......................................................................... 60
Setting the Setpoint .................................................................................................. 60 5.3.1
5.4 REMOTE SETPOINT MODES ............................................................................ 61
Remote Setpoint Field Wiring ................................................................................. 61 5.4.1
Remote Setpoint Startup .......................................................................................... 62 5.4.2
5.5 DIRECT DRIVE MODES ..................................................................................... 62
Direct Drive Field Wiring ........................................................................................ 63 5.5.1
Direct Drive Startup ................................................................................................. 63 5.5.2
5.6 BOILER MANAGEMENT SYSTEM (BMS, BMS II, or ACS) ................................ 63
BMS External Field Wiring ..................................................................................... 64 5.6.1
BMS Setup and Startup ............................................................................................ 64 5.6.2
5.7 COMBINATION CONTROL SYSTEM (CCS) ...................................................... 64
Combination Control System Field Wiring ............................................................. 65 5.7.1
Combination Control System Setup and Startup ..................................................... 65 5.7.2
CHAPTER 6: SAFETY DEVICE TESTING.......................................................................... 67
6.1 TESTING OF SAFETY DEVICES ....................................................................... 67
6.2 NATURAL GAS LOW GAS PRESSURE FAULT TEST ....................................... 67
6.3 PROPANE GAS LOW GAS PRESSURE FAULT TEST ...................................... 68
6.4 NATURAL GAS HIGH GAS PRESSURE FAULT TEST ...................................... 69
6.5 PROPANE HIGH GAS PRESSURE FAULT TEST.............................................. 70
6.6 LOW WATER LEVEL FAULT TEST .................................................................... 70
6.7 WATER TEMPERATURE FAULT TEST ............................................................. 71
6.8 INTERLOCK TESTS ............................................................................................ 72
REMOTE INTERLOCK ......................................................................................... 72 6.8.1
DELAYED INTERLOCK ....................................................................................... 72 6.8.2
6.9 FLAME FAULT TESTS ........................................................................................ 72
6.10 AIR FLOW FAULT TESTS ................................................................................ 73
6.11 SSOV PROOF OF CLOSURE SWITCH ............................................................ 74
6.12 PURGE SWITCH OPEN DURING PURGE ....................................................... 75
6.13 IGNITION SWITCH OPEN DURING IGNITION ................................................ 76
6.14 SAFETY PRESSURE RELIEF VALVE TEST .................................................... 76
CHAPTER 7: MAINTENANCE .............................................................................................. 78
7.1 MAINTENANCE SCHEDULE .............................................................................. 78
7.2 IGNITER-INJECTOR ........................................................................................... 79
7.3 FLAME DETECTOR ............................................................................................ 81
7.4 COMBUSTION CALIBRATION & RSI REGULATOR ADJUSTMENT ................. 81
RSI Regulator Pressure ............................................................................................ 81 7.4.1
7.5 SAFETY DEVICE TESTING ................................................................................ 84