New Project - DF

Dan Foley

Hi Bob,

Sorry you missed Wetstock. I'll have to meet you at the next one. Thanks for the kind words.

The maximum design flow on this job is 90 gpm. There is almost no pressure drop through the Caleffi. I do not know if Caleffi makes a LLH that can handle 150 gpm. Maybe HR will chime in? - DF

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Dan Foley

Project

This is one of our current projects. We started it last fall. It is a gut rehab of a turn-of-the century schoolhouse in the heart of Georgetown on Prospect St..

The building is historic and they could not change anything on the exterior. The inside was completely demo'd and rebuilt from the basement up. There will be seven condos in the schoolhouse building and five new rowhouses.

These photos show the exterior as well as the views from the roof: Georgetown U., The National Cathedral, Washington Monument, Watergate, and the Kennedy Center. -DF

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Dan Foley

Mechanicals

We have the complete mechanical contract on this project including heating, cooling, radiant, DHW, ventilation and snowmelt.

The heating system will be powered by two Lochinvar Knights. Each condo will have radiant with hydro-air 2nd stage. The walkways and parking garage ramp will have snowmelt. DHW is provided by two 119 gal. dual coil Super-Stors. - DF

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Brad White_185

Outstanding work

as usual, Dan and crew! Quite a visible location and the views bring it all home.

I particularly like to see duct sealant going on as the sheetmetal goes in. The use of Aaon equipment is encouraging on projects of this type.

Condos are "tough business" so all the more to admire the quality of the installation and how neatness counts.

Great to meet you all at Wetstock Denver.

Brad

Blackoakbob

Very cool...

Very impressive work. That last picture was the reason I came to the wall today. I was interested in the maximum flow anyone has used for primary/secondary. I was going to run it by people at Wetstock but I was one of the thousands that had their flight cancelled that weekend.
I digress, may I ask what the Gpm is on that job? Waht would be the PD across the Caleffi? I have plans that may need 150 gpm.
Again, very nice work. Best regards,
blackoakbob

Dan Foley

Brad

Thanks for the comments, Brad. It was very nice to meet you in person in Denver. - DF

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MIke_Jonas

How much?

From $ 1.295 million....how many units didja get for your self??

hb_3

I find it amazing.....

..... that your guys can even make ductwork look like art! How are those tie tools working out? Ever since I saw them when you showed it, I want one!

Dan Foley

Mech.

Here are a few more photos of the mechanicals, ductwork and boiler room. -DF

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Dan Foley

DW

Hi Jeffrey,

My duct man, Ron, has close to 30 years experience banging tin. This was a tight job getting everything to fit.

We love the tie tools. It is an expensive investment but pays dividends quickly in terms of speed and time saved. -DF

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Dan Foley

$$

I wish I could afford one! One of the 2-level penthouse units just sold for $4 mil. -DF

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Kal Row

on the 4\" caleffi you can get 240gpm...

for low loss headers off the hydro-isolator (HI), the simple way is to just put Victaulic companion flanges on the HI, and then, to make your low loss headers, put a bunch of Victaulic tee's as needed on them and adapt to copper from there, and attach to your devices - no need to reverse return the boilers, as the loses between them is nill and there is no pressure drop across the vic-tees, see attached pdf


it would be nice if the Hydro-Isolators would came with 4 isolation valves, 4 gauge ports, a few sensor wells, and 4 magnetic iron catchers stuck in the bottom, there is another one made in Germany with the magnetic traps – I can’t remember the brand – but they were at the last rad-fest - i remember explaining the spirovent guy that had a booth next to it and chiding them for not producing it themselves as they already make the top and the bottom parts – all the have to do is join a spirovent to a dirt separator and they’re in business – it’s not rocket science

bob young

bosses looking good

Those welded spool pieces with the bosses are a beautiful thing. nice.

tim smith

Kal, what drawing program is that?? Also ? for Dan Foley

Dan, using the superstore tanks, do you not have to meet the ASME requirements. Here we have to use tanks that are asme cert if boilers are over 199,999 btu connected to them. Just a question. I am doing a job right now that we are using Braze plate 650mbh heat xs on to meet the requirement w/ 400 gals of storage existing that were already asme. Just a ?

Kal Row

powerpoint - if you have office, then you have it...

from the "start" menu do the "run" command an thype in powerpnt - and see if it comes up

i have and know AutoCAD - but this is much faster - for 3d however AutoCAD would be faster, eg in the 3d space, you can draw a poly line in all the axes quickly – then draw a circle at one end and use the “sweep” command to extrude the circle over the 3d polyline and presto you have a pipe going in all directions – then you can color and texture it

even more important – if you put in all you lines and fittings from a library of parts with names and prices – AutoCAD can generate a spreadsheet with everything priced, quantified and totaled – “moi-cool”

the problem with AutoCAD – is the price and learning curve – they could have charged Microsoft pricing and have the whole world using it and get a subscription upgrade annually – a steady supply of income

I am not using AutoCAD enough – I am already forgetting it – going to need it for the big commercial jobs

By the way: for the Caleffi, I took a picture off the web, pasted it into a blank PowerPoint page ten times, cropped each image down to it’s own part, then I put them together and “grouped” then in PowerPoint so that I could save and manipulate it as one – also minimizes the white space backgrounds

Dan Foley

ASME

Tim,

I can't say I know the answer to your question. This job was designed, specified and stamped by a PE and was approved by DC plan review so I would say we are ok. My understanding of DC code is that you need ASME tanks over 120 gal. If Ron Wheeler sees this, he will know the answer. -DF

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Kal Row

dan: in img_0273

are those for gauge ports and sensor wells?

Cause i have given up, i simply use Johnson controls A419 with the sensors put on the flange extensions with hose clamps and Honeywell sensor grease and insulation under the clamp and at 75$ street price – I dare say it’s less expensive to what you are doing – this way you get a temp gauge and control in one

Like I said I have repeatedly bugged Caleffi for the gauge ports and sensor wells – going to have to wait for the competition

tim smith

re: asme & tank size

We have the 120 gallon rule also but if it is fired by a boiler over 200,000 then it goes down to 33 gallons or 5 cu ft to be exempt from asme stamp. Just a foot note. Tim

Blackoakbob

Thanks for...

the drawing Kal, much appreciated. That was quite a project, also.
Regards,
blackoakbob

Dan Foley

Ports

Kal,

The ports are for a pressure gauge, temperature gauge, and control sensor well. -DF

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Dan Foley

ASME

Tim,

Thanks for the info. I'll have to look into it when I get back. -DF

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Kal Row

like i thought..

you could use a watts DPT3G tridicator - and save a well - it has the advantage of coming with a spring loaded self closing well, so that you can change the gauge without draining the system - the problem is that i have experienced a 10% failure rate with that gauge - but, if it is ok up front, it usually stays good

also my system of putting in the boiler loop sensor on the boiler side with grease and insulation has worked for me - as to not give boiler loop overshoots - this has worked to eliminate boiler overshoots in high temp commercial DMHW application with 4 knight 500’s for both tekmar tn4 and hbx systems

I am afraid the sensor well will respond instantly to a pocket of water and make your control hunt up and down,

By the way if you are using the knight’s built-in cascade, then it’s real easy, as you can set the “offset” larger and get a softer response

Bob Harper

Dan,
Do you use the low temp water for the hydro air or do you have a separate high temp loop? I assume the residents pay for electric but the heat is included in a monthly fee?

Brent

Dan Foley

Bob

Bob,

The hi-temp zones ride the reset curve. The lo-temp zones have a separate mixing control, mixing valve, and curve. -DF

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Paul Pollets

Nice!!

Dan, I love to see your (and your able crew's) workmanship. I scratch my head at your boiler selection, but I'll gladly wait 10 years to see if you're plagued with service callbacks. Regards to Pappi!

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