Plumbing in a HX

[bpirger]

Any tips for plumbing in my HX? I assume I need to mount the HX and then essentially plumb from it back to the rest of the system. I'm planning to run copper to the HX. On both sides I will isolate with ball valves (two), have a strainer on the input, and have hose bibs off tees so I can easily flush each side in place. Actually, I have seen reference to those all in one valves...I'll have to hunt those down. (EDIT: Webstone makes these.....)

I'm leary of unions...yet I'd like a way to be able to remove the HX completely if necessary. If I leave enough straight copper, it should be easy to enough to cut it out and put in a new one.

I'm planning a 60 or 80 plate 5x12 GBE from FlatPlate (GEA). Any reason to go with a different HX?

GARN 1500, being plumbed as a secondary source into my primary loop.

Thanks!

 

[in hot water]

Webstone makes that valve with gasketed unions also. Nice to have all the functions in one valve.

hr

 

[rowerwet]

I used pex with sharkbites for the connection to my HX, that way I can disconnect each pex pipe at the sharkbite, and flush the HX using more 1" pex

 

[twitch]

The only tip I can give I got from this forum. You want to plumb your water to air HX in a counter flow configuration. Meaning you want the source from the boiler closest to the plenum, not the fan. This way the hottest water / coil is when the air exits the HX. Do a search in the boiler room for 'counter flow' and you should get a lot of info. Someone posted increased air temp on exit of the air handler I believe. Good luck!!