Aerco Benchmark 2.0 LN User Manual

Benchmark 2.0 LN Installation, Operation & Maintenance Manual
Page 4 of 168 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0046_0J
06/18/2015 Phone: 800-526-0288 GF-123
CHAPTER 3. OPERATION .................................................................................................................... 35
3.1 introduction ........................................................................................................................................ 35
3.2 CONTROL PANEL DESCRIPTION .................................................................................................. 35
3.3 CONTROL PANEL MENUS .............................................................................................................. 39
3.3.1 Menu Processing Procedure ...................................................................................................... 39
3.4 OPERATING MENU .......................................................................................................................... 40
3.5 SETUP MENU ................................................................................................................................... 41
3.6 CONFIGURATION MENU ................................................................................................................. 42
3.7 TUNING MENU ................................................................................................................................. 44
3.8 COMBUSTION CAL MENU .............................................................................................................. 44
3.9 START SEQUENCE .......................................................................................................................... 45
3.10 START/STOP LEVELS ................................................................................................................... 48
CHAPTER 4. INITIAL START-UP .......................................................................................................... 51
4.1 INITIAL START-UP REQUIREMENTS ............................................................................................. 51
4.2 TOOLS AND INSTRUMENTATION FOR COMBUSTION CALIBRATION ....................................... 51
4.2.1 Required Tools & Instrumentation .............................................................................................. 52
4.2.2 Installing Gas Supply Manometer ............................................................................................... 52
4.2.3 Accessing the Analyzer Probe Port ............................................................................................ 53
4.3 COMBUSTION CALIBRATION ......................................................................................................... 54
4.4 UNIT REASSEMBLY ......................................................................................................................... 58
4.5 OVER-TEMPERATURE LIMIT SWITCHES...................................................................................... 59
4.5.1 Digital Alarm Switch Checks and Adjustments ........................................................................... 60
CHAPTER 5. MODE OF OPERATION .................................................................................................. 63
5.1 INTRODUCTION ............................................................................................................................... 63
5.2 INDOOR/OUTDOOR RESET MODE ................................................................................................ 63
5.2.1 Reset Ratio ................................................................................................................................. 63
5.2.2 Building Reference Temperature ................................................................................................ 63
5.2.3 Outdoor Air Temperature Sensor Installation ............................................................................. 63
5.2.4 Indoor/ Outdoor Startup .............................................................................................................. 63
5.3 CONSTANT SETPOINT MODE ........................................................................................................ 64
5.3.1 Setting the Setpoint .................................................................................................................... 64
5.4 REMOTE SETPOINT MODES .......................................................................................................... 65
5.4.1 Remote Setpoint Field Wiring ..................................................................................................... 65
5.4.2 Remote Setpoint Startup ............................................................................................................ 66
5.5 DIRECT DRIVE MODES ................................................................................................................... 66
5.5.1 Direct Drive Field Wiring ............................................................................................................. 67
5.5.2 Direct Drive Startup .................................................................................................................... 67
5.6 BOILER MANAGEMENT SYSTEM (BMS) ....................................................................................... 67
5.6.1 BMS External Field Wiring .......................................................................................................... 68
5.6.2 BMS Setup and Startup .............................................................................................................. 68
5.7 COMBINATION CONTROL SYSTEM (CCS).................................................................................... 68
5.7.1 Combination Control System Field Wiring .................................................................................. 69
5.7.2 Combination Control System Setup and Startup ........................................................................ 69
CHAPTER 6. SAFETY DEVICE TESTING ............................................................................................ 71
6.1 TESTING OF SAFETY DEVICES ..................................................................................................... 71
6.2 LOW GAS PRESSURE FAULT TEST .............................................................................................. 71
6.3 HIGH GAS PRESSURE TEST .......................................................................................................... 72
6.4 LOW WATER LEVEL FAULT TEST ................................................................................................. 73
6.5 WATER TEMPERATURE FAULT TEST ........................................................................................... 73
6.6 INTERLOCK TESTS ......................................................................................................................... 74
6.6.1 REMOTE INTERLOCK ............................................................................................................... 75
6.6.2 DELAYED INTERLOCK ............................................................................................................. 75
6.7 FLAME FAULT TESTS...................................................................................................................... 75
6.8 AIR FLOW FAULT TESTS ................................................................................................................ 76
6.9 SSOV PROOF OF CLOSURE SWITCH ........................................................................................... 77
6.10 PURGE SWITCH OPEN DURING PURGE .................................................................................... 78

Aerco Benchmark 2.0 LN Specifications

General

Brand	Aerco
Model	Benchmark 2.0 LN
Category	Boiler
Language	English