[RE-wrenches] Another pump quesiton

[Dave Angelini Offgrid Solar]

Look at the recent Grundfos Scala2 recall, they have sold some really
bad pumps, so AC is not always best. For Offgrid a spare inverter is often
called for because critical systems do need back-up. Many
applications/requirements are different.  Grundfos scala2 pump recall    
They have been RECALLING or "updating" all VFD type PUMPS for 30+ years
now. It is all part of their planned obsolescence. The more electronics you
have in a PUMP system, the less likely water is to come out of a faucet
when opened, and the more it is going to cost you    

Winter is coming :) 


Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridsolar at sti.net
[2]
text 209 813 0060

On Thu, 17 Sep 2020 09:30:43 -0600, Ray  wrote:   


Actually best of all: you don't have to run low voltage DC circuits to
the pump room. Another thing about the ECM drive pumps, they have much
higher flow rates available than the El Cids. And if you're worried about
your old school street cred in the off grid world, they are still
technically DC at the drive, for those old timers that insist on DC. 
Ray
Walters
Remote Solar
303 505-8760
 On 9/17/20 6:54 AM, Dana Orzel wrote:   


I have El-cids in stock ">I have switched to the new AC technology that
Grundfoss ">   

Dana Orzel Great Solar Works, Inc.  

C - 208.721.7003 


Idaho Contractor - # 028765 Idaho PV # 028374 

NABCEP # 051112-136
www.solarwork.com [3] 

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since 1988"  

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Links:
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