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22 Installing the System Piping
The following figure illustrates an example of
installation using the PRV-air vent adapter.
Air Vent
Cap
Pressure
Relief Valve
Method 2. Installation using the
PRV-air vent adapter
Note
Before installing the vent line and any
vent fittings, you must be familiar with
the LWCO and pressure relief valve
installation guidelines.
3.1.2 Essential Elements in a Space
Heating System
Air Vent
The vent efficiently removes the air from the boiler.
The following figure illustrates an example of a
typical air vent installation.
Method 1. Installation using typical
Pressure
Relief
Valve
Air Vent Cap
Summary of Contents for NFC-250/175H
Page 67: ...67 Venting for Combustion Air WARNING The vent installation detector Detectable Undetectable...
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