Hello, sorry if this is not valuable, but I used a "Wink" device a few years ago to control a Wink switch, to switch to control a relay to control a backup heat source if the temperature got to low. Sorry I do not remember a lot more.
On Wed, May 23, 2018 at 2:28 PM, Eric Youngren <[email protected]> wrote: > Howdy Wrenches, > > I'm working on a generator powered mini-grid for an island fishing resort > in Alaska. They have 3 XW6048 inverter/chargers to charge batteries while > the diesel runs and power the loads from the batteries when the diesel > shuts down. > > They have several high power heating loads not typically seen in > battery-based off-grid electrical systems. Two 4kW hot tub heaters and six > 1kW infrared space heaters. We have the 46 kW generator run-times set so > that the infrared heaters are (in theory) powered only while the generator > is running, but the hot tubs are thermostatically controlled and cycle on > and off every 4-5 hours or so. > > I want to make it so that these big heating loads can never be powered > from the batteries, and will only come on while the generator is running. > The current plan is to use the Auxillary output 12V terminals from one of > the XWs to control power relays to switch the hot tub circuits, based on > battery voltage triggers. One of those hot tub circuits is fed from the > main panel right next to the inverters so that is easy enough. But the > other hot tub is fed from a sub-panel located in a different building > around 200 feet away from the inverters. Pulling a pair of wires to > control the second relay at that sub-panel is not practical. So, I'm > looking for wireless options that could control a power relay for the hot > tub circuit in the remote sub-panel. Ideally, the control signal would come > from the same AUX terminal so both hot tubs will not receive power when the > battery voltage is below 50 volts or so, which would indicate that the > generator is not running. > > I would also like to put the infrared heaters on a similar control system > so that we are not dependent on people remembering to switch off the > heaters before the generator shuts down. > > Has any of you done this kind of thing? Any suggestions on equipment or > best practices? THANKS! > > Eric Youngren > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/[email protected]. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > >
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