25 families Hot water system

Frank Tsaltas

I have a few questions.

To heat up a 25 family house with convector panel cast iron radiators.
Each floor will have 5 apartments
hot water system, 3-4 boilers & indirect water heaters
Owner wants to have building split with different zones and he wants each apartment to have it's own shut off valve, such as:

basement & 1st floor = 1-2 risers = 1 loop
2nd & 3rd floor = 3 risers = 1 loop
4th & 5th floor = 3 risers = 1 loop

Can you recommend any piping diagram & how heat will operate
with an even temperature through out?

Thanks

Art Pittaway

Frank

The scope of your question is more than a recommendation can cover. A five story, 25 apt. building should have someone do a heat loss/gain report on the building. Then design the system so it works as one smooth machine. The boiler size, expansion tank, pump size, zone valves, piping size and layout, control system right down to where the thermostats need to be placed. What brands of equipment and how will they work together or not work together. The building layout will make a difference, where is the mechanical room, etc.,etc. From your post, I cannot tell what position you are in this project. But, there is to much money involved with a building this size to guess about how one of the three most important systems in it will work. Paying to have someone take responsibility ($$) for design and specification may be the cheap way to go.
My opinion, Art

zeb_3

I second what Art said. n/m

ta finnegan

Get a design!

I've made a living being the guy that gets blamed. Sometimes it's pretty lonely.

Whether you are doing it yourself, letting the work out to the lowest bidder or whatever - SOMEONE NEEDS TO CREATE THE ROADMAP.

Get it designed and you'll sleep better at night.

I do.

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Darlene

10 family boilers 10,000 square foot

I just had new water refill valves and bleeders put on my boilers and I cant get the air locks out of one apartment. I have bleed it from the zone control in the basement 3 times, it is a second story apartment, any ideas?

Darlene

10 family boilers 10,000 square foot

I just had new water refill valves and bleeders put on my boilers and I cant get the air locks out of one apartment. I have bleed it from the zone control in the basement 3 times, it is a second story apartment, any ideas?

Darlene

I have 40 zones and it's difficult to get and keep the heat even I would have someone plan it out well or you could be spending the rest of your life bleeding it out

ta finnegan

air problems.

When in doubt add the pumps pressure to the system by pumping away. I have had huge success with this theory and know it to be fact.

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RB_2

Exactly as they said

Unless you're a contractor, take this page from our training program to one of the guys above/below...they or the engineers they work with can fill in all the blanks such as heat loss, models, sizes, etc...

In Canada, a job like this requires a P.Eng., so the Cole’s Note Fantasy Island Version of domino's would fall like this (before reality kicks in):

1.The G.C. or Arch hires a P.Eng.

2.P.Eng goes to the Application Manual

3.Pulls out the one attached below.

4.Does all the load calcs, schematics and specifications.

5.Contacts us for the ZCP model and puts into his spec.

6.Issues contract, specs and dwgs for tender

7.Contractors bid the job

8.Best man (hopefully) gets the contract

9.System gets installed, filled, purged, balanced and commissioned as per spec.

10. P.Eng inspects and approves


11.Occupancy permit is issued

12.Everybody moves in.

13.Nobody gets paid except the engineer, architect, lawyer and banker.

(Not necessarily in that order)

In-between 1 through 13 is the proverbial construction contract minefield only the masters make it through...amateurs have an early and brutal death.

Hacks make up the rules as they go along...finish the job, move their business and change their names.

"You have to be a special breed to work in the trades as there are very few industries with as many crooks as the construction industry."

Above modified quote from a construction contract law book.

Can you feel the love?

RB

RB_2

Commercial ChaCha

Unless you're a contractor, take this page from our training program to one of the guys above/below...they or the engineers they work with can fill in all the blanks such as heat loss, models, sizes, etc...

In Canada, a job like this requires a P.Eng., so the Cole’s Note "Fantasy Island" Version of domino's would fall like this (before reality kicks in):

1.The G.C. or Arch hires a P.Eng.

2.P.Eng goes to the Application Manual

3.Pulls out one similar to the one attached below.

4.Does all the load calcs, schematics and specifications.

5.Contacts us for the ZCP model and puts into his spec.

6.Issues contract, specs and dwgs for tender

7.Contractors bid the job

8.Best man (hopefully) gets the contract

9.System gets installed and commissioned as per spec

10. P.Eng inspects and approves


11.Occupancy permit is issued

12.Everybody moves in.

13.Nobody gets paid except the engineer, architect, lawyer and banker.

…and not necessarily in that order

In-between 1 through 13 is the proverbial construction contract minefield only the master make it through...amateurs have an early and brutal death.

Hacks make up the rules as they go along...finish the job, move their business and change their names.

"You have to be a special breed to work in the trades as there are very few industries with as many crooks as the construction industry."

Above modified quote from a construction contract law book.

Can you feel the love?

a Chachacha.

RB