3/4" ProPEX Fitting Assembly for Commercial Manifold

All the goodies that come with the manifold - flow meters, flow adjusters (manual,but can be automated later), drain valves, thermometers, isolation valves work great. Every piece of this additional equipment makes life so much easier. Thermometers seems to be precise (as opposed to others I bought separately for 20 bucks each). Drain valves swivel. It takes no physical effort to open or close drain valves. I wonder how it can be so easy to move and still being sealed well. My installation has passed 50 PSI air pressure test with no issues. Now, I got two boxes, only one had the manual and stickers included. Manual is important. I don't know where to download one. Fortunately, in the second box there was a manual. If you get a box with no manual, I think you can use the manual for the brass manifold from Uponor.

I am not a HVAC guy but installed our hydronic system using runtal radiators and this manifold. I started 2 years ago with a Mr.Pex manifold that leaked badly within a year, so I went this this unit as a replacement. Today I noticed that there was a leak at the union. Unfortunately, the union is not repairable and had to RMA the unit. The pressure is up around 18 PSI and when the PSI drops lower the leak seems to go away, but replacing either way.