AERCO BMK 1.5 LN July 2011 - Manual (Page 4)

Page 4 of 152 PR2: 05/09/12 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Benchmark 1.5LN Low NOx Boiler
Operation and Maintenance Manual
OMM-0041_0D
GF-120
FAULT RELAY (13) ........................................................................................... 26 2.10.12
2.11 AUXILIARY RELAY CONTACTS (14) ............................................................... 26
2.12 FLUE GAS VENT INSTALLATION .................................................................... 26
2.13 COMBUSTION AIR ........................................................................................... 26
Combustion Air From Outside the Building .......................................................... 27 2.13.1
Combustion Air From Inside The Building ........................................................... 27 2.13.2
Sealed Combustion ................................................................................................ 27 2.13.3
Temporary Combustion Air Filtering During Construction .................................. 27 2.13.4
2.14 BENCHMARK PUMP RELAY OPTION ............................................................. 27
CHAPTER 3 CONTROL PANEL OPERATION .............................................................. 29
3.1 INTRODUCTION ................................................................................................. 29
3.2 CONTROL PANEL DESCRIPTION ..................................................................... 29
3.3 CONTROL PANEL MENUS ................................................................................ 33
Menu Processing Procedure ..................................................................................... 33 3.3.1
3.4 OPERATING MENU ............................................................................................ 34
3.5 SETUP MENU ..................................................................................................... 35
3.6 CONFIGURATION MENU ................................................................................... 36
3.7 TUNING MENU ................................................................................................... 37
3.8 COMBUSTION CAL MENU ................................................................................. 37
1.1 START SEQUENCE ............................................................................................ 38
3.9 START/STOP LEVELS ........................................................................................ 41
CHAPTER 4 INITIAL START-UP ...................................................................................... 43
4.1 INITIAL START-UP REQUIREMENTS ................................................................ 43
4.2 TOOLS AND INSTRUMENTATION FOR COMBUSTION CALIBRATION .......... 43
4.2.1 Required Tools & Instrumentation ...................................................................... 44
4.2.2 Installing Gas Supply Manometer ....................................................................... 44
4.2.3 Accessing the Vent Probe Port ............................................................................ 45
4.3 RSI Regulator SAFE TEST .................................................................................. 45
4.4 NATURAL GAS COMBUSTION CALIBRATION ................................................. 47
4.5 UNIT REASSEMBLY ........................................................................................... 51
4.6 OVER-TEMPERATURE LIMIT SWITCHES ........................................................ 52
CHAPTER 5 MODE OF OPERATION .............................................................................. 53
5.1 INTRODUCTION ................................................................................................. 53
5.2 INDOOR/OUTDOOR RESET MODE .................................................................. 53
Reset Ratio ............................................................................................................... 53 5.2.1
Building Reference Temperature ............................................................................. 53 5.2.2
Outdoor Air Temperature Sensor Installation .......................................................... 53 5.2.3
Indoor/ Outdoor Startup ........................................................................................... 53 5.2.4
5.3 CONSTANT SETPOINT MODE .......................................................................... 54