Fxr2524a-01 aux port for gen start but running fan

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mikedowdell
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My RE system: Outback FXR2524A-01, FlexMax FM80, Mate3s, Power Hub 4
9x Solar World 250w panels on a 2 axis solar tracker
4x 6v 220ah Trojan Batteries
Hybrid Off Grid with AC as backup
Location: San Diego, CA

Fxr2524a-01 aux port for gen start but running fan

Post by mikedowdell » Sun Dec 15, 2019 9:08 pm

I was looking into using my inverter aux port as generator start-stop control however my AUX port is currently occupied by the use of the case fan. The AUX port on my charge controller is slated to be occupied as controlling a diversion load. How do I accommodate AGS remote start stopped from the inverter without removing the fan? Or is that the expectation?

raysun
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Re: Fxr2524a-01 aux port for gen start but running fan

Post by raysun » Sun Dec 15, 2019 10:24 pm

I've often wondered about the Aux port. The list of profiles defaults to vent fan, but is the port really hooked up to a fan?

Why have the port available and have a critical function already assigned to it?

I've never needed the port so never looked further into it.

mikedowdell
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Posts: 58
Joined: Wed Sep 12, 2018 10:04 am
My RE system: Outback FXR2524A-01, FlexMax FM80, Mate3s, Power Hub 4
9x Solar World 250w panels on a 2 axis solar tracker
4x 6v 220ah Trojan Batteries
Hybrid Off Grid with AC as backup
Location: San Diego, CA

Re: Fxr2524a-01 aux port for gen start but running fan

Post by mikedowdell » Mon Dec 16, 2019 11:23 am

When I purchased my Inverter, the case fan seemed like and addendum added after the fact. There was an installation sheet specific to it outlining the connections to the AUX port. Mine is the sealed rather than vented model so perhaps that has something to do with it, or perhaps they found that these run hot so they added a fan after the fact and defaulted the settings to be set to use a fan. I can always power the fan externally I suppose and regain use of the aux which would lose any smart throttling of the fan. I'd really like to hear from Outback on what the best practice is intended to be when taking advantage of the aux port for gen start/stop rather than fan.

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IanMcCluskey
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Re: Fxr2524a-01 aux port for gen start but running fan

Post by IanMcCluskey » Mon Dec 16, 2019 12:36 pm

Hi Mike, the Turbo fan is really only necessary when operating in an especially hot environment. Removing it may result in a small decrease in maximum output in especially hot conditions.

The manual is a good resource for the Aux output functions, including AGS, starting on page 26 - http://www.outbackpower.com/downloads/d ... nstall.pdf

If you are concerned about temperature derating, you might consider using the Aux terminals on your FLEXmax 80. You might also consider updating to a FLEXmax 100, which has a more robust set of Aux output capabilities.
Ian McCluskey
Product Manager


Alpha Technologies Inc. / OutBack Power Technologies
3767 Alpha Way Bellingham WA 98226 USA
http://www.alpha.com

mikedowdell
Forum Expert
Posts: 58
Joined: Wed Sep 12, 2018 10:04 am
My RE system: Outback FXR2524A-01, FlexMax FM80, Mate3s, Power Hub 4
9x Solar World 250w panels on a 2 axis solar tracker
4x 6v 220ah Trojan Batteries
Hybrid Off Grid with AC as backup
Location: San Diego, CA

Re: Fxr2524a-01 aux port for gen start but running fan

Post by mikedowdell » Mon Dec 16, 2019 6:11 pm

Thank you, that is the information I needed regarding the fan. This off grid location is on the edge of a desert so there are times when it can get quite hot, windy, and other times snow. I cant use the FM80 aux as it is configured as a diversion load for wind power. Budget is limited at this location so making the most of each components configuration has been a priority.

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