Watts AERCO Benchmark 2.0 LN Operating & Maintenance Instructions page 4

Benchmark 2.0 gas fired low nox boiler
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CONTENTS
Chapter 5 – MODE OF OPERATION
Para.
Subject
5.1
Introduction
5.2
Indoor/Outdoor Reset Mode
5.3
Constant Setpoint Mode
5.4
Remote Setpoint Mode
5.5
Direct Drive Modes
Chapter 6 – SAFETY DEVICE TESTING PROCEDURES
Para.
Subject
6.1
Testing of Safety Devices
6.2
Low Gas Pressure Fault Test
6.3
High Gas Pressure Test
6.4
Low Water Level Fault Test
6.5
Water Temperature Fault Test
6.6
Interlock Tests
6.7
Flame Fault Test
Chapter 7 – MAINTENANCE REQUIREMENTS
Para.
Subject
7.1
Maintenance Schedule
7.2
Spark Igniter
7.3
Flame Detector
7.4
Combustion Calibration
7.5
Safety Device Testing
7.6
Burner
Chapter 8 – TROUBLESHOOTING GUIDE
Para.
Subject
8.1
Introduction
ii
Page
Para.
5-1
5.6
Boiler Management System
5-1
(BMS)
5-2
5.7
Combination Control System
5-2
(CCS)
5-3
Page
Para.
6-1
6.8
Air Flow Fault Test
6-1
6.9
SSOV Proof of Closure Switch
6-1
6.10
Purge Switch Open During
6-2
Purge
6-2
6.11
Ignition Switch Open During
6-2
Ignition
6-3
6.12
Safety Pressure Relief Valve
Test
Page
Para.
7-1
7.7
Condensate Drain Trap
7-1
7.8
Shutting the Boiler Down For An
7-2
Extended Period of Time
7-2
7.9
Placing The Boiler Back In
7-3
Service After A Prolonged
7-3
Shutdown
Page
Para.
8-1
Subject
Subject
Subject
Subject
5-1
Page
5-4
5-5
6-1
Page
6-4
6-4
6-5
6-5
6-5
7-1
Page
7-4
7-4
7-4
8-1
Page

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