Large commercial commissionning

Henry

We have just commissioned the new "temporary" hospital boiler/mechanical building in downtown Montréal. The building is the grey addition with the two stacks. It will be there for two years. Once the permanent boiler/mechanical building will be built, this one will be taken apart.



The two boilers you see, have each 20,992,000 BTU input and modulate down to 10 percent. There are four more larger boilers of 80,000,000 of which one was being started that day. The boilers are Thermogenic Thermocoil model. The boilers provide 125 PSI steam and there is also a low pressure system running at 12 PSI.

gerry gill

now thats some nice work!

and they did that as a temporary facility? wow. Looks better than most permanent ones.

Henry

Temporary

Yes, after several millions of $$$, it will be completly demolished and everything sold. And then I get blasted by some little residential for putting the outlet of the headder in the middle instead of aft the outlets for a reason, "it works in commercial and industrial installations"! and sometimes, we don't have time nor space to do otherwise.

Jean-David Beyer

Why so much pressure?

They cannot need that much pressure for domestic heating or hot water. Are they running a lot of big steam turbines? Do they need such pressures (temperatures) for autoclaves? I know people who run small steam locomotives with 125 to 150 psi, but they pull trains with that.

The Steam Whisperer (Formerly Boilerpro)

Commercial and industrial not the same as heating

Low pressure steam requires much better piping for proper operation than high pressure commercial and industrial. 

Charlie from wmass

I am sorry you got so offended

But it does not "work" in industrial or commercial any better than it does in residential. The boilers are interesting but since none of the piping is visible I can say nothing about the piping. Not all of us on here are simply house boiler installers. I carry more licenses then I want to pay for, but I need them for what I do. High pressure on systems is not impressive, like big tires on a truck. I understand the middle take off, welded fittings, and the horizontal reduction before dropping for the equalizer. I simply do not install boilers that way. I am also not always the low bidder. I would suggest thicker skin and being more selective in the photos you post. If you have to tweak the installation manual I would not post that boiler install on the internet to be looked over.

Paul48

"we don't have time nor space to do otherwise".

A professional finds the time and the space  to do the job correctly. All jobs, regardless of their budget are worthy of a proper installation. Your status in the HVAC community should not afford you the right to make changes contrary to conventional wisdom and the manufacturers I&O manual based on your discretion. Maybe your shortcuts don't present a problem today, but how about in 10 years when other things enter into the picture and the waterline is surging and the pipes are banging. Do you like the idea of your work being cut out as part of the "de-knuckleheading" process? There's your legacy.They won't remember who installed the ones you've done correctly.

Steamhead

One of these days, Henry

I'll get around to digging up a pic of the very first steamer I ever installed- at least a couple decades ago, probably earlier than that. On that job, I was pretty much copying what I saw in the field. Never mind that it was almost all wrong.



The job worked, and still works, because of one thing I did right.



Now, there is no way I'd ever install a steamer that way today, no matter what size it was. It goes in with the proper piping, controls etc. etc. or we don't do it at all. Someone else can deal with the call-backs and the liability.