AERCO BMK 2.0 LN Dual Fuel Serial G-11-2402 and UP - Manual (Page 4)

Page 4 of 160 PR2: 04/22/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Benchmark 2.0LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0052_0E
GF-127
Interlocks
(10, 12) ........................................................................................... 23
2.10.11
Fault Relay
(13).................................................................................................. 24
2.10.12
Auxiliary Relay Contacts
(14) ........................................................................... 24
2.10.13
2.11 FLUE GAS VENT INSTALLATION .................................................................... 24
2.12 COMBUSTION AIR ........................................................................................... 24
Combustion Air From Outside the Building .......................................................... 25 2.12.1
Combustion Air From Inside The Building ........................................................... 25 2.12.2
Sealed Combustion ................................................................................................ 25 2.12.3
Temporary Combustion Air Filtering During Construction .................................. 25 2.12.4
2.13 BENCHMARK PUMP RELAY OPTION ............................................................. 25
CHAPTER 3: CONTROL PANEL OPERATION ................................................................. 27
3.1 INTRODUCTION ................................................................................................. 27
3.2 CONTROL PANEL DESCRIPTION ..................................................................... 27
3.3 CONTROL PANEL MENUS ................................................................................ 31
Menu Processing Procedure ..................................................................................... 31 3.3.1
3.4 OPERATING MENU ............................................................................................ 32
3.5 SETUP MENU ..................................................................................................... 33
3.6 CONFIGURATION MENU ................................................................................... 34
3.7 TUNING MENU ................................................................................................... 35
3.8 COMBUSTION CAL MENU ................................................................................. 35
3.9 START SEQUENCE ............................................................................................ 36
3.10 START/STOP LEVELS ...................................................................................... 39
CHAPTER 4: INITIAL START-UP ........................................................................................ 41
4.1 INITIAL START-UP REQUIREMENTS ................................................................ 41
4.2 TOOLS AND INSTRUMENTATION FOR COMBUSTION CALIBRATION .......... 41
Required Tools & Instrumentation .......................................................................... 42 4.2.1
Installing Gas Supply Manometer ........................................................................... 42 4.2.2
Accessing the Analyzer Probe Port.......................................................................... 43 4.2.3
4.3 NATURAL GAS COMBUSTION CALIBRATION ................................................. 44
4.4 PROPANE COMBUSTION CALIBRATION ......................................................... 49
4.5 UNIT REASSEMBLY ........................................................................................... 53
4.6 OVER-TEMPERATURE LIMIT SWITCHES ........................................................ 53
Digital Alarm Switch Checks and Adjustments ...................................................... 54 4.6.1
CHAPTER 5: MODE OF OPERATION ................................................................................ 56
5.1 INTRODUCTION ................................................................................................. 56
5.2 INDOOR/OUTDOOR RESET MODE .................................................................. 56
Reset Ratio ............................................................................................................... 56 5.2.1
Building Reference Temperature ............................................................................. 56 5.2.2
Outdoor Air Temperature Sensor Installation .......................................................... 56 5.2.3
Indoor/ Outdoor Startup ........................................................................................... 56 5.2.4