DC hydronics ZONE VALVES [RE-wrenches]

[Dana Orzel]

Has anyone measured a 24VAC zone valve held ope for load?
I realize that the transformer is the major  load but what does a zone valve
pull.

Anyone ever measured a Danfoss DC zone valve?

I am looking at using ac actuated ball valves pulse to open and pulse to
close.
Any experience with these out there?

My thought, [after using many ELCID pumps and the costof  4, 5, and 6 pumps
per system plus solar soft check valves and isolation ball valves for
service of pumps on each zone], is to use 1 or possibly 2 small Grundfoss
and a couple of actuated ball valves for the zone valves. Yes , it uses AC
but the cost would go down [esp. labor and materials for the manifolding]
and reliability would go up massively. It is one of those cases for ok maybe
you add 1 or 2 PV modules to off set the minor extra on the ac pump and the
inverter "efficiencies". Any Thoughts?

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
This email was sent to: michael_welch at sbcglobal.net

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
==^================================================================