[RE-wrenches] Timer for SQF pump

[Bob-O Schultze]

2nd all that. I would add that since you want all this to run array direct, you need to be VERY aware of the MAX voltage of both the relay and contacts that the switch can handle. If it's a summer only gig, you can probably go with Voc.

On Jun 23, 2014, at 6:14 AM, Allan Sindelar wrote:

Agree with Jerry on using the float switch circuit. The one note I would add is that the Grundfos CU200 "controller" uses a conventional close-on-rise signal algorithm. So a timer would have to be set in reverse - that is, an "on" closed-contact signal from the timer would turn the pump off, so you'd want to program the timer to "off" when you want the pump to run.
Allan

Allan Sindelar
allan at sindelarsolar.com
NABCEP Certified PV Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
505 780-2738 cell

 
On 6/22/2014 6:41 PM, Jerry Shafer wrote:
> There are self powered electronic 7 day timers and to be safe I would make the connection at the float low volts low current and designed to stop the pump
> 
> On Jun 22, 2014 3:37 PM, "All Solar, Inc." <allsolar at scswifi.net> wrote:
> I am in need of a timer for an SQF Grundfos pump, PV direct.
> Would it be considered a non-inductive load?
> I was thinking to install the timer  on the PV input side.
> 
> Jeremy Rodriguez,
> President
> 
> All Solar, Inc.
> 1463 M
> Penrose Colorado 81240
> 719-372-3808 office
> 719-372-3804 fax
> www.asolarelectric.com
> 
> Sent by Jeremy's iPhone. Sorry for typos and shorthand!
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