AERCO BMK 2.0 LN Natural Gas (SN G-11-1861 and above) - Manual (Page 4)

GF-123
Benchmark 2.0LN Boiler
OMM-0046_0E Installation, Operation & Maintenance Manual
Page 4 of 170 AERCO International Inc.● 100 Oritani Dr. ● Blauvelt, NY 10913. ● Ph: 800-526-0288 PR1 08/20/12
2.12 COMBUSTION AIR ........................................................................................................................ 30
2.12.1 Combustion Air From Outside the Building ......................................................................... 30
2.12.2 Combustion Air From Inside The Building .......................................................................... 30
2.12.3 Sealed Combustion ............................................................................................................. 30
2.12.4 Temporary Combustion Air Filtering During Construction .................................................. 30
2.13 BENCHMARK PUMP RELAY OPTION.......................................................................................... 31
CHAPTER 3. CONTROL PANEL OPERATION ................................................................................ 3-33
3.1 INTRODUCTION ........................................................................................................................... 3-33
3.2 CONTROL PANEL DESCRIPTION ............................................................................................... 3-33
3.3 CONTROL PANEL MENUS .......................................................................................................... 3-36
3.3.1 Menu Processing Procedure .............................................................................................. 3-37
3.4 OPERATING MENU ...................................................................................................................... 3-38
3.5 SETUP MENU ............................................................................................................................... 3-39
3.6 CONFIGURATION MENU ............................................................................................................. 3-40
3.7 TUNING MENU ................................................................................................................................ 42
3.8 COMBUSTION CAL MENU .............................................................................................................. 42
3.9 START SEQUENCE ......................................................................................................................... 43
3.10 START/STOP LEVELS .................................................................................................................. 46
CHAPTER 4. INITIAL START-UP......................................................................................................... 49
4.1 INITIAL START-UP REQUIREMENTS ............................................................................................ 49
4.2 TOOLS AND INSTRUMENTATION FOR COMBUSTION CALIBRATION ...................................... 49
4.2.1 Required Tools & Instrumentation ........................................................................................ 50
4.2.2 Installing Gas Supply Manometer ......................................................................................... 50
4.2.3 Accessing the Analyzer Probe Port ...................................................................................... 51
4.3 RSI REGULATOR SAFE TEST ........................................................................................................ 51
4.4 NATURAL GAS COMBUSTION CALIBRATION .............................................................................. 53
4.5 PROPANE COMBUSTION CALIBRATION ..................................................................................... 58
4.6 UNIT REASSEMBLY ........................................................................................................................ 62
4.7 OVER-TEMPERATURE LIMIT SWITCHES ..................................................................................... 62
CHAPTER 5. MODE OF OPERATION ................................................................................................. 65
5.1 INTRODUCTION .............................................................................................................................. 65
5.2 INDOOR/OUTDOOR RESET MODE ............................................................................................... 65
5.2.1 Reset Ratio ........................................................................................................................... 65
5.2.2 Building Reference Temperature .......................................................................................... 65
5.2.3 Outdoor Air Temperature Sensor Installation ....................................................................... 65
5.2.4 Indoor/ Outdoor Startup ........................................................................................................ 65
5.3 CONSTANT SETPOINT MODE ....................................................................................................... 66
5.3.1 Setting the Setpoint ............................................................................................................... 66
5.4 REMOTE SETPOINT MODES ......................................................................................................... 67
5.4.1 Remote Setpoint Field Wiring ............................................................................................... 67
5.4.2 Remote Setpoint Startup ....................................................................................................... 68
5.5 DIRECT DRIVE MODES .................................................................................................................. 68
5.5.1 Direct Drive Field Wiring ....................................................................................................... 69
5.5.2 Direct Drive Startup ............................................................................................................... 69