;
> ï Please consider the environment before printing this email.
>
>
> -Original Message-
> From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
> Behalf Of drake.chamber...@redwoodalliance.org
> Sent: Thursday, February 12, 2015 7:53 AM
> To: re-w
nalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Glenn Burt
Sent: Thursday, February 12, 2015 1:15 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Off Grid Alarm
Sounds lik
ase excuse grammar and typos.
-Original Message-
From: "drake.chamber...@redwoodalliance.org"
Sent: 2/12/2015 9:52
To: "re-wrenches@lists.re-wrenches.org"
Subject: [RE-wrenches] Off Grid Alarm
We are looking for an audible alarm that will not drive the pets
ance.org"
To: re-wrenches@lists.re-wrenches.org
Sent: Thursday, February 12, 2015 6:52 AM
Subject: [RE-wrenches] Off Grid Alarm
We are looking for an audible alarm that will not drive the pets crazy if
it stays on for hours when no one is home. At present, only a red indicator
li
We looked into this recently as well, and didn't find any good options
that didn't involve us making a custom gizmo of some type. The closest
off the shelf product I found was just an AC smoke alarm that chirps
when it loses AC. I think some of the little UPS boxes also have an
alarm when th
e-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] Off Grid Alarm
We are looking for an audible alarm that will not drive the pets crazy if it
stays on for hours when no one is home. At present, only a red indicator light
goes on when the grid is down.
It would need to run off 120 VAC. Does a
We are looking for an audible alarm that will not drive the pets crazy if
it stays on for hours when no one is home. At present, only a red indicator
light goes on when the grid is down.
It would need to run off 120 VAC. Does anyone have any suggestions?
Thanks,
Drake
___
6:29 AM
Subject: [RE-wrenches] Off Grid Alarm Communicator
> Hello Wrenches,
>
> I had a request from a local alarm company for a small PV - Battery
> system to power an alarm communicator system. The parameters given
> are as follows
>
> 12 V DC power supply to the gear
&g
Carl,
We designed and built a custom solar power system for an alarm company about
4 years ago. They were installing the system on an un-occupied warehouse
that had no electricity. The two things we had to address was make sure we
had correct voltage/current battery charging arrangement as we di
Carl,
Alarm systems typically already have batteries. Usually 9 or 12 Ah VRLA.
For an off-grid version, I would size the battery based on the once a year
event where the alarm is going off non stop for two days. That should also give
some cloudy weather storage.
If possible, get all their eq
Hello Wrenches,
I had a request from a local alarm company for a small PV - Battery
system to power an alarm communicator system. The parameters given
are as follows
12 V DC power supply to the gear
standby load 28 mA - this is the majority of the time
Operation peak load 2A for 2 minutes - once
11 matches
Mail list logo
