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 [email protected] [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] "Responsible Technologies for Responsible People since 1988" P Please consider the environment before printing this email. Links: ------ [1] http://members.sti.net/offgridsolar/ [2] mailto:[email protected] [3] http://www.solarwork.com/
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