Navien NCB-180 Service Manual page 18
Condensing boiler
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Also See for NCB-180:
- Installation & operation manual (77 pages) ,
- User's information manual (26 pages) ,
- Quick installation manual (4 pages)
Table of Contents
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Fan & Motor
Dual Venturi
High Limit Switch
Air Pipe
Gas Pipe
APS
Air Vent
Circulation Pump
3-Way Valve
Space Heating Supply
Space Heating Return
Ignition Transformer
Premix Burner
Primary Heat Exchanger
Secondary Heat Exchanger
Pressure Sensor (LWCO)
DHW Heat Exchanger
Gas Valve
Flow Sensor
DHW Inlet Filter
(with built-in flow restrictor)
DHW Inlet
DHW Outlet
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Table of Contents
Troubleshooting
