requesting advice- infloor heat equipment layout

[bloodvette]

So, I'm about to start plumbing my infloor heat in my new shop. The pad is 32'x32', I have 4 circuits layed out with 1 foot spacing between lines. So that's eight- 1/2" lines coming up out of the corner of the shop. I pretty much have everything I need except the isolation valves. I bought 2 manifolds with shut off valves for each line, and I bought the expansion tank, the appropriate size circulation pump, the 9.6kW boiler, and that pressure/air release valve. I'm not a plumber, I am an journeyman electrician. But I am planning to do this whole garage myself, including the plumbing. What I am now trying to find out, is the layout for this equipment, I know that it is important to have the blow off valve at the highest point, and the expansion tank pointed down, but where would I need isolation valves, I presume before and after the boiler, and before and after the pump. Do I need a tap at the bottom? I am planning to replicate this exact layout that my friend (SEE PICTURE) has unless there's anything different that a professional would suggest.

Do you fill through the bottom tap, with the isolation valve just above it- shut off. and once all the air stops coming out of the air release valve- then monitor the guage until you get to 15psi then shut the hand valve off, open the isolation valve then turn on pump? Thats kind of the procedure I'm thinking.

Thanks,
john

 

[bloodvette]

Actually if anyone has a picture of their layout please post!!! Thanks

 

[overdriv]

If you search this forum, you will find numerous layouts to look at.

ETA: Search the Heating and AC forum would be the focus of your search.

http://www.garagejournal.com/forum/forumdisplay.php?f=26