Best Of
Re: ASME requirements
This is my understanding but I have been out of the loop for a while.
my understanding with expansion tanks is they need an ASME rating if the relief valves on the system are rated over 30psi. 30psi reliefs and under do not require ASME expansion tanks.
As far as indirects go I thought the reason for the 119 gallon tanks was that 120 gallons or more require ASME and under 120 does not.
In both the above situations that is why you see on larger jobs you sometimes see multiple 119 gallon indirects and multiple non ASME expansion tanks.
Re: Rust in one pipe system
Do you keep up on repairing any steam leaks ? With steam leaks the water will escape out of the system and leave the minerals (solids) behind . Hi iron water would leave a redish color mud in the boiler .
Big Ed_4
Re: Material price increases due to govermental tarrifs
The fed can't raise the money supply 28% without causing inflation. Stopped at the deli for breakfast lately?
Re: Remove PTAC unit for servicing
They'll have to support the H W coil or remove it.
it should have unions to service it anyway
pecmsg
Re: Remove PTAC unit for servicing
That looks like a modified PTAC to me. I've done plenty of PTAC"S and never seen the hot water coil on the discharge, external to the unit. Generally PTAC"S are a packaged unit that slides out of their casing so it can be repaired. preferably on a bench. Take the old one out and slide another one that's already been repaired. Maybe that's so old and that how they did it. looks like it will still slide out if you can support the coil. hang it from the window sill. might have to call McGyver
pedmec
Re: Rust in one pipe system
Any pipe above the boiler water line usually lasts forever. It's just the pipe below the water line that causes issues.
Re: What are the most well-established US manufacturers of residential electric boilers
If going all electric just put electric baseboards in each room!
At least you'll be able to control each room separately.
pecmsg
Re: Daikin 2-Zone - Which port to charge? - Instructions confusing
If you didn't vac it down, it isn't going to work.
ratio
Re: Heating Help Partners with SkillCat for App-Based HVAC Learning
Very smart partnering…whenever access to education is made easier, everyone benefits. Mad Dog
