Navien NHB H Series, Инструкция по установке и эксплуатации

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86 Installing a Common Vent System
Apply
Cement
[Hub Reducing Wye Assembly]
Note
The options shown here are only
examples. The setup you choose will
vary based on the installation location,
local building codes, and other factors.
The installer is responsible for all
equipment and detailing required by
local codes.
WARNING
Carbon Monoxide Hazard
To prevent serious injury or death:
●
ALWAYS use a bubble test kit to check for leaks.
●
After the boiler is installed, fill with water, turn
on the boiler and test for leaks using a bubble
test kit.
●
If you see bubbles form, you will need to repair
that section of pipe and bubble test again.
9.3.3 Assembling the Wye Joint
1. Assemble the hub wye, the 2” reducer, and the
90º elbow into the common vent. You can also
use the hub reducing wye and the 90º elbow to
assemble the common vent. Apply the proper
solvent cement to the mating surfaces.
Note
Tees can also be used instead of wye
fittings as part of the common vent.
Apply Cement
Apply Cement
[Hub Wye, 2” Reducer, 90˚ Elbow]
Apply Cement
[Hub Reducing Wye and 90˚ Elbow]
Note
Multiple reducers can be used to allow
proper connection of 2" vent pipe to
the common vent system.
2. Assemble the wye joint or wye assembly to the
vent pipe. Apply solvent cement to the mating
surfaces.
Apply
Cement
[Hub Wye Assembly]