Aerco Benchmark 2000 User Manual

Benchmark 1500 - 2000 Boilers
Installation, Operation & Maintenance Manual
OMM-0097_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 3 of 182
GF-142 Ph.: 800-526-0288 10/01/2015
TABLE OF CONTENTS
FOREWORD 7
CHAPTER 1. SAFETY PRECAUTIONS ......................................................................................... 11
1.1 WARNINGS & CAUTIONS ................................................................................................................... 11
1.2 EMERGENCY SHUTDOWN ................................................................................................................. 12
1.3 PROLONGED SHUTDOWN ................................................................................................................. 12
CHAPTER 2. INSTALLATION ........................................................................................................ 15
2.1 INTRODUCTION ................................................................................................................................... 15
2.2 RECEIVING THE UNIT ......................................................................................................................... 15
2.3 UNPACKING ......................................................................................................................................... 15
2.4 SITE PREPARATION ........................................................................................................................... 16
2.4.1 Installation Clearances .................................................................................................................................... 16
2.4.2 Setting the Unit ............................................................................................................................................... 17
2.5 SUPPLY AND RETURN PIPING .......................................................................................................... 19
2.6 PRESSURE RELIEF VALVE INSTALLATION ..................................................................................... 20
2.7 CONDENSATE DRAIN & PIPING ........................................................................................................ 21
2.8 GAS SUPPLY PIPING .......................................................................................................................... 23
2.8.1 Gas Supply Specifications ............................................................................................................................... 23
2.8.2 Manual Gas Shutoff Valve .............................................................................................................................. 23
2.8.3 External Gas Supply Regulator ........................................................................................................................ 24
2.9 AC ELECTRICAL POWER WIRING ..................................................................................................... 25
2.9.1 Electrical Power Requirements ....................................................................................................................... 26
2.10 FIELD CONTROL WIRING ................................................................................................................. 27
2.10.1 Outdoor Air In (OUT) & Air Sensor Common (COM) .................................................................................... 28
2.10.2 AIR TEMP SENSOR Terminals ........................................................................................................................ 29
2.10.3 O
2
SENSOR Terminals (O2+ & O2-) ............................................................................................................... 29
2.10.4 SPARK SIGNAL Terminals .............................................................................................................................. 29
2.10.5 ANALOG IN Terminals ................................................................................................................................... 29
2.10.6 VALVE FEEDBACK Terminals ......................................................................................................................... 29
2.10.7 SHIELD Terminals (SHLD & SHLD) ................................................................................................................. 30
2.10.8 ANALOG OUT Terminals ............................................................................................................................... 30
2.10.9 RS485 Comm (+, GND, & -) ........................................................................................................................... 30
2.10.10 RS232 Comm (TxD & RxD) .......................................................................................................................... 30
2.10.11 VFD/Blower (0-10 & AGND) ........................................................................................................................ 30
2.10.12 Interlocks .................................................................................................................................................... 30
2.10.13 Fault Relay (NC, COM, & NO) ...................................................................................................................... 31
2.10.14 Auxiliary Relay Contacts (NC, COM, & NO) ................................................................................................. 31
2.11 FLUE GAS VENT INSTALLATION ..................................................................................................... 31
2.12 COMBUSTION AIR ............................................................................................................................. 32
2.13 DUCTED COMBUSTION AIR ............................................................................................................. 32
2.14 SEQUENCING ISOLATION VALVE INSTALLATION ........................................................................ 33
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 ............................................................................................................................. 41

Aerco Benchmark 2000 Specifications

General

Brand	Aerco
Model	Benchmark 2000
Category	Boiler
Language	English