Vitogas with Superstor Ultra 80

joel_14

just get the regular kw100 basic reset control and you can just have a relay send the control a signal to overide the the weather responsive function and run to high limit. you do not need a vitotronic 2oo to do this you just need to know how to wire the basic controll on the terminal strip are two connections that if you tap to will overide the controll when your water heater calls the pump send asignal to the board and your allset. Ican't remember what the numbers are off the top of my head i'll try to find out tommorrow

jim_51

Vitogas 100 with Superstor Ultra 80

Any problems using a Vitogas 100 GS1-29 with a Vitronic 100 KW-10 with a Superstor Ultra 80 indirect water heater instead of Vitocell?

Henry_9

KW 10 and tank

In order for this to work, you need to add a DHW module, part 9543431. Once that is added in, you might as well just use the Vitotronic KW 2 and have the ability to add in additional reset and external demand throught the addition of a Switching Module V.

Thanks,
Henry

VI Midwest

heatboy

Recovery....

will be severly limited to the tiny heat exchanger used by SuperStor and most other indirects. The problem will show itself with boiler modulation during moderate weather on the higher mass boilers. Look at the Vitocell 100 for a more economical option to the 300. It will do a much better job of recovery (due to it's larger surface area on the heat exchanger) when the Vitogas is running at lower temps.

hb

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

jim_51

Vitocell 100

Any one know what kind of life expectancy of a 80g vitocell 100 is for residential use? Can't afford the 300.

Ted_5

Vitotronic 200 has

DHW priority and the boiler temp will ramp up from its outdoor reset set point to get the DHW demand over asap.
The Vitocell 100 is a good tank if your water quality is good. It has great recovery rates with lower boiler water temps then other brands and less stand by losses.

Ted

kf_2

As long as...

the anode rod is changed periodically it should last for many years.



kf

Steve Ebels

You know Henry

I see this as an area Viessmann could improve on. They need a simple control that will do 2 basic things. Just outdoor reset with pump logic and DHW production. Forget all the programming and other bells and whistles. Maybe they could make it a modualr type control that you could expand by installing different "cards" if you wanted to add features instead of having to buy an additional piece. It's rather dicouraging to me when I look at the cost of a Viessmann control and then have to add this and add that to make it work the way it needs to. Don't get me wrong but, "One has to question the good things in order to achieve perfection", or something like that.

ScottMP

Tiny Heat exchanger ?

HB is'nt that a little harsh ? I know its not the same quality as a Viessmann tank, but we use alot of Super-Stor's with good results. I can think of alot of indirects that SuperStor walks all over and for a compeditive job its a good product.

Now with a low water content and high output of a Vitodens coupled with a SuperStor on priority I can't imagine this would be a "poor" system.

Scott

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

heatboy

How about smallish?

Scott,

The issue with the Vitodens and other high pressure drop HXs on the tanks, such as SuperStor, MegaStor, Alliance, etc., is flow rate through the Vitodens. Especially on the 6-24 and 8-32 since DHW relies on the integral pump in the Vitodens. Pressure drop on either Vitodell, 300 or 100, is substantially lower than any other indirect. With the Vitodens, I suggest the 100 if budget is an issue.

The higher mass boilers that modulate water temps need the Vitocells for recovery. I guess don't have to tell you how I know that........;-)

hb



To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

Henry_9

I agree

with the concept of modularity, we offer it in so much of our line. I do not know if there is a plan to offer a basic control that would do these two functions. Consider this though, the Vitotronic 200 does this for a relatively small adder. If Vi were to make a control to reset just the boiler and respond to DHW demand, you would almost have the 200.

I will bounce it around and see if anyone likes the idea.

Always questioning....
Henry
VI Midwest

jim_51

Anode Rod

How often should the anode rod be changed in a Vitocell 100 79 Gal?

Steve Ebels

Terminals

2 and 8, from a reliable Viessmann source.

GW

Help with KW10

I talked with my rep yesterday, but after I hung up I realized I over-simplified my wiring question a little. Perhaps I'll call him back if no one clues me in hear.

Joel is right, except he left out one minor deatail, that being the pump. There's only one pump output- and assuming we want the low temp protection, most of us folks are gonna use it.

So, I have a SR503 to handle the heat pump and the DHW pump. Let's assume I want to have priority here- what da heck do I do now? I hate when my brain cramps up. The Super Stor will close the 2/8, that's a no-brainer, but how do I tell the circ to come on? The TT on the SR is hot, and so isn't the 2/8. NOT GOOD.

I already have a set point control sensing outdoor temp beacuse the KW10 needs the 1/2 closed... (I have a radiator/TRV job), it's getting a little painful.

One tech guy once had me do a SR504EXP with a PC600 card, maybe I'll have to do this unless there's an easier way.

OK I shoulda dropped the G on the 200 control- silly me.

Can anyone solve the case of the KW10?

Gary

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

GW

yes and no

do you mean from a wiring aspect (yes) or a hydronics standpont? (no)

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

Steve Ebels

Gary

Run your DHW circ through your 50-whatever control and use a secondary relay between the zone panel and the 2-8 terminals on the KW10. This will isolate the outputs from each other.

Assuming your 504 has DHW priority, you would wire the TT leads from the SuperStore aquastat in series with the relay (T to aquastat, other teminal on aquastat to one pole of relay, other pole of relay back to T) and take the other side (load side) of the relay to 2 & 8. This would kill your heating pump, call on the boiler and the DHW pump which would get its 120V from the 504.

At least thats what I think you are asking.