[RE-wrenches] Wireless First Alert Smoke Alarms on OutBack inverter power

Dan Fink danbob88 at gmail.com
Wed Jan 14 02:05:21 PST 2015


That's an astute question Jerry. Search mode on any inverter brand can
cause all sorts of problems with a variety of unexpected non-RE plain
normal consumer equipment. Better to set search mode off, and instruct
non-full-time residents to push the button to turn the inverter itself off
when they leave and push it on when they are up there to their second home
or remote cabin.
But also I've seen more than a few problems with hardwired smoke and CO
detectors and also GFCI outlets on off-grid inverters, search mode off and
completely non-related.

My guess is that "wireless" smokes doesn't mean wifi, it means injecting
signals on the AC lines, and my next guess is the waveform and response of
the off-grid inverter is the cause of your problems, as that injected
signal doesn't come through pure. I think I'd first pull the AC bypass
breakers, run generator or utility direct for a true sine wave, and see if
the problem persists.

Best.


Dan Fink
Buckville Energy
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
NABCEP / IREC / ISPQ Accredited Continuing Education Providers™
970.672.4342



On Wed, Jan 14, 2015 at 1:41 AM, Jerry Shafer <jerrysgarage01 at gmail.com>
wrote:

> is the inverter in the "ON" or "Search" mode on the mate, I have had some
> noise issues when in the search mode with audio equipment
> Jerry
>
> On Tue, Jan 13, 2015 at 12:17 PM, Dave <dave at independentpowerllc.com>
> wrote:
>
>> I have an off grid home remodeling project that includes installing new
>> hardwired, with 9v battery backup, smoke detectors (First Alert One Link).
>> Tested them today and they did not work well on OutBack inverter power.
>> These are wireless smokes that communicate with one another. They all begin
>> to give false "smoke" alarms when on AC power, tested three times with same
>> results. When disconnected from AC they operate fine on their battery power.
>>
>>
>>
>> Is this a case of inverter power incompatibility?
>>
>>
>>
>> David Palumbo
>>
>> Independent Power LLC
>>
>> 462 Solar Way Drive
>>
>> Hyde Park, VT 05655
>>
>> 802-888-7194
>>
>>
>>
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