Biasi Thermic Valve and P/S piping project--done!

Here's some photos of my finished DIY Biasi boiler install, which was started last year... Over the summer I added a TV valve for boiler protection, and also added P/S piping for the heating system. The system is monitored by Tekmar 260 outdoor reset controller. The electric water heater is temporary and was used for hotwater in the past--I'm going to move it and store it for future use as needed. The P/S piping allows using a boiler minimum well under 150 degrees, since the TV valve always keeps the return at 140 degrees or higher.

So far it is working great. NOTE: this install was done under a building permit and inspected, and a modification of code was granted for the wood boiler emergency backup boiler.

Pete

http://i117.photobucket.com/albums/o.../PSpiping2.jpg
http://i117.photobucket.com/albums/o.../PSpiping3.jpg
http://i117.photobucket.com/albums/o...n/PSpiping.jpg

 

Nice looking job, Pete. Zones color coded, nice clean solder joints, lots of valves, permitted, & inspected. Congratulations are in order.
Wish most "pros" would do such nice work. Just one question: What's the coil of orange tubing(?) on top of the boiler? Looks like it goes to the air scoop.

 

Hi Grady, that cable plugs into the junction box for the zone valve wiring. It goes to a switch box that permits the service tech to do a heat call for each of the three zones for testing the system. Only problem is that the Tekmar has to be reprogrammed to allow heat calls in the summer It can be unplugged and stored when it isn't needed. The cable is long so it can reach the burner on the back of the wood boiler as needed.

http://i117.photobucket.com/albums/o...all-switch.jpg

I also added Burham temp gauges on the boiler supply and return that are in this newer photo.

Pete

 

Nice touch, the test station. Aren't you Mr. Nice Guy to the service tech? Of course we both know who the service tech is. :mask: And to think just over a year ago you were a virtual novice. You've done well, Grasshopper.

 

Nice work Pete - be proud!

 

What a difference a year makes! Congrats.

 

what is all this im way lost, but looks real nice. and sounds like an effecent system.

 

Was just looking at the pics again & didn't see a service switch on the boiler. Is there one that I didn't see? Around here, a tough inspector will bust you for not having one "within arm's reach while working on the burner".

 

There are emergency switches on the top of the stairwell (per state code) and on the wood panel that the Tekmar mounts on. The burner service switches are each side of the boilers. The inspector also required an AC outlet for servicing!

You could pick on me for not having an 18" straight run before the Taco airscoop, or having the weighted flow on the suction side of the pump.
Pete

 

Doggone it Pete, you spoil all my fun.
Any idea how many times I looked at those shots before I thought I found something. You did one hulluva job.

 

You said it Grady! I showed them to SWMBO, and even she was impressed! She walked out of the room mumbling something that sounded like " DIVE! DIVE! RUN SILENT! "

Seriously, I am seriously jealous...