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Drop Header:Which way to Go?
In figuring out the best piping for the Slantfin tr50s we've come across a dilemna. We've emailed the techhelp there, but are seeking further imput.
The Tr50s have two tappings, one in front(3") and one in back(2"). The back one comes up and over forming a t juncture with the front tapping which then continues up and over into the drop header. All the drop headers I've seen go towards the rear of the boiler, but to hit my existing main flange perfectly, we would need to drop it forward. No need to worry about headroom as there's plenty of height available. Is there any reason not to do it this way? I prefer not to extend the mains. I'm attaching a little diagram showing it going forward with two alternate configurations.
Also, SF connects the drop directly into the mains, but everyone seems to do the regular drop-header into a supply header and then up into the mains. Any advantages to either method or am I just misunderstanding what the SF rep says.
Still recuperating from the tear-down. Just watching made me ache!
Two-pipe Trane vaporvacuum system; 1466 edr
Twinned, staged Slantfin TR50s piped into 4" header with Riello G400 burners; 240K lead, 200K lag Btus. Controlled by Taco Relay and Honeywell RTH6580WF