AERCO BMK 2.0 LN October 2012 - Manual (Page 4)

GF-123
Benchmark 2.0LN Boiler
OMM-0046_0F Installation, Operation & Maintenance Manual
Page 4 of 172 AERCO International Inc.● 100 Oritani Dr. ● Blauvelt, NY 10913. ● Ph: 800-526-0288 PR1 10/17/12
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 ................................................................................... 33
3.1 INTRODUCTION .............................................................................................................................. 33
3.2 CONTROL PANEL DESCRIPTION .................................................................................................. 33
3.3 CONTROL PANEL MENUS ............................................................................................................. 36
3.3.1 Menu Processing Procedure ................................................................................................. 37
3.4 OPERATING MENU ......................................................................................................................... 38
3.5 SETUP MENU .................................................................................................................................. 39
3.6 CONFIGURATION MENU ................................................................................................................ 40
3.7 TUNING MENU ................................................................................................................................ 41
3.8 COMBUSTION CAL MENU .............................................................................................................. 42
3.9 START SEQUENCE ......................................................................................................................... 44
3.10 START/STOP LEVELS .................................................................................................................. 47
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
4.7.1 Digital Alarm Switch Checks and Adjustments ..................................................................... 63
CHAPTER 5. MODE OF OPERATION ................................................................................................. 67
5.1 INTRODUCTION .............................................................................................................................. 67
5.2 INDOOR/OUTDOOR RESET MODE ............................................................................................... 67
5.2.1 Reset Ratio ........................................................................................................................... 67
5.2.2 Building Reference Temperature .......................................................................................... 67
5.2.3 Outdoor Air Temperature Sensor Installation ....................................................................... 67
5.2.4 Indoor/ Outdoor Startup ........................................................................................................ 67
5.3 CONSTANT SETPOINT MODE ....................................................................................................... 68
5.3.1 Setting the Setpoint ............................................................................................................... 68
5.4 REMOTE SETPOINT MODES ......................................................................................................... 69
5.4.1 Remote Setpoint Field Wiring ............................................................................................... 69
5.4.2 Remote Setpoint Startup ....................................................................................................... 70