11
About the Boiler
1.4 Components
The following diagram shows the key components of the boiler. Component assembly diagrams and particular
parts lists are included in the Appendixes.
Intake Air
Air Intake Pipe
Vent Installation
Detector
Exhaust
Duct
Fan & Motor
Assembly
Dual Venturi
APS
PCB
Power Switch
PRV-Air Vent
Connection
Gas Pipe
Mixing Chamber
Igniter
Flame Rod
Igniter Transformer
Fire-Tube Type
Heat Exchanger
ASME Name Plate
Front Panel
Gas Valve
Condensate Outlet
24V Power
Transformer
Gas Inlet
Condensate Trap
(Siphon)
Summary of Contents for NFC-250/175H
Page 67: ...67 Venting for Combustion Air WARNING The vent installation detector Detectable Undetectable...
Page 149: ...Memo...
Page 150: ......