Navien NPE-240A2 Recirculation plumbing

[Stlgasman]

I currently have a Navion with the Navicirc valve. It works. Sometimes it whines. The negative is that when you switched back to cold water it takes a long time.

How would I plumb in a dedicated recirculation line? The hotline is on the left and the cold line is on the right.

 

[Breplum]

There is a dedicated recirculation line which is next to the hot outlet. It has a black plastic 3/4" cap. That is the line.
You will need a plumber, obviously. There is also a setting adjustment to make.

 

[Sponsor]

 

[Stlgasman]

The setting is different than the setting for the Navicirc?

 

[Fitter30]

Can download the install manual. A recir line 1/2" is run from the furthest fixture all the way back the to the heater into the recir fitting. Line is teed into the hot water line.
www.manualslib.com/manual/2131563/Navien-Npe-180a2.html?page=1#manual

 

[Breplum]

1/2" copper or 3/4" PEX...never 1/2" PEX