AERCO BMK 1.5 LN Dual Fuel Feb 2013 - Manual (Page 4)

Page 4 of 162 PR2: 05/09/12 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Benchmark 1.5LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0043_0C
GF-121
Interlocks (10, 12) ........................................................................................... 24 2.10.11
Fault Relay (13) ................................................................................................. 25 2.10.12
Auxiliary Relay Contacts (14) ........................................................................... 25 2.10.13
2.11 FLUE GAS VENT INSTALLATION .................................................................... 25
2.12 COMBUSTION AIR ........................................................................................... 25
Combustion Air From Outside the Building .......................................................... 26 2.12.1
Combustion Air From Inside The Building ........................................................... 26 2.12.2
Sealed Combustion ................................................................................................ 26 2.12.3
Temporary Combustion Air Filtering During Construction .................................. 26 2.12.4
2.13 BENCHMARK PUMP RELAY OPTION ............................................................. 26
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
2.9 START SEQUENCE ............................................................................................ 38
3.10 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 PROPANE COMBUSTION CALIBRATION ......................................................... 52
4.6 UNIT REASSEMBLY ........................................................................................... 56
4.7 OVER-TEMPERATURE LIMIT SWITCHES ........................................................ 56
CHAPTER 5: MODE OF OPERATION ................................................................................ 59
5.1 INTRODUCTION ................................................................................................. 59
5.2 INDOOR/OUTDOOR RESET MODE .................................................................. 59
Reset Ratio ............................................................................................................... 59 5.2.1
Building Reference Temperature ............................................................................. 59 5.2.2
Outdoor Air Temperature Sensor Installation .......................................................... 59 5.2.3