Vonderful Vitodens.........hb

heatboy

This is a conversion from an old oil boiler. Cast iron radiators thoughout, except the bath where we installed some radiant with Wirsbo MultiCor. The owner had insulation blown in all of the exterior walls, so the water temps in the system shouldn't exceed more than 140° this Winter.

hb

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Alan(CaliforniaRadiant)Forbes

Whew !

That's pretty. That must be one big bathroom; is that a 1" mixing valve.

I'd like to see another ball valve on the suction side of those circulators, but other than that, it looks perfect.



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heatboy

My crystal ball..........

sees some more radiant in this client's future. Yes, Alan, that is a 1" valve for future needs. Good eyes!

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paul lessard_2

I like the composite pipe(nm)

ScottMP

Vonderfull yob.

YA dis looks goot.

Nice job Pal.

Scott

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Michael B

Heatboy?

Why 2 (two) NIX relays on the panel? Couldn't you have used one (1) larger NIX relay? Jus nit-picking...

Michael Bleier
Able Distributors

heatboy

Separate line voltage supply...........

for each relay, Michael. The radiant pump relay is powered from the mixing valve actuator and the other pump is powered from the system line voltage.

Our next Vitodens panel, which we are starting tomorrow, will have two mixing valves. The standard actuator on one three way and the Dekamatik on the other valve.

I really value the input from you guys. It helps me strive to make the next one better. So, I would appeciate any inconsistencies to be pointed out so they can be corrected. Thanks!

hb

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ALH

Isolation flanges?

It's a beautiful installation.

Why is it that I rarely see people use Grundfos isolation flanges? That is one very expensive system. I might have just run their radiant floor the same temp as the radiators until they had more radiant as long as the bathroom isnt a very temperature sensitive material.

I dont understand why Viessmann doesnt put NPT fittings on the bottom of the Vitodens, or on the low loss header. And the 240v 50Hz problem.............it's almost a slap in the face for the US. We should have switched to SI years ago ;-)

men som til de byller .......... de er vidunderlig.

Mark Hunt

THAT'S IT!!!!!!!!!!!


Next panel I do is gonna be Diamond plate!

Great looking job HB!

I would expect nothing less.

Now when I install my first Vitodens, will you be as kind?

Mark H

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pat_5

one question

Why did you use a low loss header and a 4 way mix valve?

heatboy

Different functions.

The low loss header separates the system hydraulically so the boiler can be assured of flow rates, since it is flow sensitive. That is it's primary function. While it may lower return temperatures some, it is not intended to be a mixing device. That's why the three way is there.

The vitodens is designed to be a two pump system. One for the HX and one (or more) for the system. Trying to run an entire heating system on just the boiler pump, especially on the 6-24 & 8-32, won't work. The delta P across the Vitodens HX is pretty high and must not be over or under pumped, which is what will happen with out the Low Loss Header.

For a dim bulb, like myself, the learning curve on these boilers has been pretty steep, but I'll get it someday! I Promise ;-)

hb

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Joel_3

That's

Very goot Achtung! Baby! and Farfegnugen and all that, I like the diamond plate but my guys don't, they think it clashes with the copper. We're thinking of trying copper sheeting buffed and clearcoated so it won't tarnish. we propress everthing so there are no silver solder rings at all probably would look real clean with copper back drop . what do you guys think??

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ALH

I'm partial to a nicely finished off-white wall. Plus that doesnt cost anything extra. I think copper looks great on a white background. Maybe plywood/osb that's covered with drywall. Jeg liker en hvit mur ;-)

hot_rod

I think

you "got it" a long time ago & in spades(G). Nice work amigo.

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Steve Ebels

Just used an LLH

> The low loss header separates the system

> hydraulically so the boiler can be assured of

> flow rates, since it is flow sensitive. That is

> it's primary function. While it may lower return

> temperatures some, it is not intended to be a

> mixing device. That's why the three way is

> there.

>

> The vitodens is designed to be a two

> pump system. One for the HX and one (or more)

> for the system. Trying to run an entire heating

> system on just the boiler pump, especially on the

> 6-24 & 8-32, won't work. The delta P across the

> Vitodens HX is pretty high and must not be over

> or under pumped, which is what will happen with

> out the Low Loss Header.

>

> For a dim bulb,

> like myself, the learning curve on these boilers

> has been pretty steep, but I'll get it someday!

> I Promise ;-)

>

> hb

>

> _A

> HREF="http://www.heatinghelp.com/getListed.cfm?id=

> 103&Step=30"_To Learn More About This Contractor,

> Click Here to Visit Their Ad in "Find A

> Contractor"_/A_

Steve Ebels

Just used an LLH

On a Weilly Mac GV-4 boiler. I got to looking at the piping schematics supplied with the GV and it looked like it could be done far simpler with a low loss header (hydraulic disconnect. No need for an additional loop pump for the boiler and it lets the factory installed boiler and mix pump do whatever they want to do as far as ramping up and down. Works great!!

heatboy

Pro Press

Joel,

I would love to see a panel that used Pro Press fittings. I am seriously considering purchasing one if I can find a local guy who will stock ALL of the fittings. Would you mind posting a picture? Thanks.

Is it clash or contrast? Wouldn't all of the copper piping get lost with the copper background. The contrast between the aluminum and copper is one of the things that catches my eye.

hb

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