GB142-24 Required Flow

Steve_35

but I can't find in the install or application manuals the required flow rate for the GB142-24, the head at that flow or a pressure drop chart. I'm pretty sure Buderus makes that info available, I'm just not finding it.

We're installing this on a job that already has an indirect WH. I just want to make sure the DHW pump is sized correctly.

I tried e-mailing Joe but apparently he's out of the office till next week.

Thanks.

Ted_9

gb

Its definitly in the applications manual, pages 2 and 3.

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[Deleted User]

It comes pre plumbed with its own boiler pump...

You just need to worry about the flow requiremnts and head for the system...

Purdy fart smellers them there Buderi fellers are....

ME

Steve_35

I don't think the boiler pump runs

on a DHW call.

Ted_9

dhw

No the boiler pump doesnt run for dhw.

EDIT: found it. look above.

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Steve_35

These charts are for Buderus indirects.

We have a SuperStor. Thanks anyways though. I'll give Buderus a call this am.

singh

Grundfos pumps

I can't wait to try out the new 3 speeds,(26-99fc) they cover a lot, perfect for this application.
I can't fine the pressure drop of the GB either, just the reccommended pumps for their indirects.

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Steve_35

Spoke with Buderus this am.

The GB142-24 minimum flow is 8gpm at 8ft head. Makes it easy to remember.