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