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Navien Manuals
Water Heater
NCB-150E
Service manual
Navien NCB-150E Service Manual page 6
Ncb-e condensing water heaters
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Quick installation manual
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Installation & operation manual
(83 pages)
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Installation & operation manual
(13 pages)
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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6. Replacement of Parts
6.1 Replacement Procedure
6.2 Components Replacement Instructions
6.2.1 PCB
6.2.2 Fuse
6.2.3 Fan Motor (Combustion Air)
6.2.4 Flame Rod
6.2.5 Ignition Transformer
6.2.6 APS
6.2.7 Main Gas Valve
6.2.8 Condensate Trap
6.2.9 Flow Sensor
6.2.10 Circulation Pump
6.2.11 3-way Valve
6.2.12 Water Pressure Sensor
6.2.13 Space Heating Strainer
6.2.14 Auto Feeder Valve
6.2.15 DHW Heat exchanger
7. Components Diagram and Part List
7.1 Case Assembly
7.2 Burner Assembly
7.3 Waterway Assembly (NCB)
7.4 Waterway Assembly (NCB-E)
7.5 Fan (Gas) Assembly
8. Inspection and Maintenance Schedule
8.1 Annual Servicing
8.2 Maintenance Report
8.3 Maintenance Schedules
8.4 Inspection Report
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Troubleshooting
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Troubleshooting guide by symptom
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This manual is also suitable for:
Ncb-180e
Ncb-210e
Ncb-240e
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