RV.Net Open Roads Forum: Tech Issues: Inverter cooling fan

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Inverter cooling fan

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Sponsored By:
S Davis

Western WA

Senior Member

Joined: 08/11/2005

View Profile


Offline
Posted: 09/12/21 11:52am Link  |  Quote  |  Print  |  Notify Moderator

I am getting ready to install a Outback VFXR2812 inverter, it is going in an enclosure and needs ventilation. Those of you with an enclosed inverter what are you using for a cooling fan? The inverter can support up to a .7 amp draw for the fan.

pianotuna

Regina, SK, Canada

Senior Member

Joined: 12/18/2004

View Profile


Offline
Posted: 09/12/21 03:36pm Link  |  Quote  |  Print  |  Notify Moderator

S Davis

What is the wattage of the inverter? What is the efficiency?

For example 1000 watts at 9% = 111 watts of heat to dissipate.

From that you could calculate the air flow needed.

I would use DC computer fans, one to exhaust and one to blow into the box.

I'd use a mechanical thermostat to control the on/off cycling.

My Magnum caught on fire--because it uses AC controls (or perhaps AC fans).


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, soon to have SiO2 batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

2oldman

NM

Senior Member

Joined: 04/15/2001

View Profile


Offline
Posted: 09/12/21 04:39pm Link  |  Quote  |  Print  |  Notify Moderator

S Davis wrote:

I am getting ready to install a Outback VFXR2812 inverter, .
Excellent choice! The Outback units are built like tanks and should last forever. Note that it weighs 60lb, so there's probably enough heat sink in that mass you may not need to ventilate it. I doubt the mfr just forgot about cooling an inverter that expensive.

I have the 3648A, and I never hear its fan, nor do I know if it even has one. It's in the basement, not a small enclosed space however.

* This post was edited 09/13/21 08:15am by 2oldman *

Itinerant1

Itinerant

Senior Member

Joined: 05/23/2017

View Profile



Posted: 09/12/21 08:04pm Link  |  Quote  |  Print  |  Notify Moderator

As Pianotuna points out if your inverter uses the ac to run its fans let it cooldown before turning it off.

I run my Magnum for hours powering the ac unit but I make sure that the front compartment is open for air circulation under those conditions. Also the inverter is on 24/7/365.


12v 500ah (5,120Wh usable), 20 cells_ 4s5p (GBS LFMP battery system). 8 CTI 160 watt panels (1,280 watts)2s4p,Panels mounted flat. Magnum PT100 SCC, Magnum 3012 hybrid inverter, ME-ARC 50. Installed 4/2016 been on 24/7/365, daily 35-45% DOD 1,800+ cycles.

gatorcq

Arizona

Senior Member

Joined: 03/15/2004

View Profile





Offline
Posted: 09/12/21 08:34pm Link  |  Quote  |  Print  |  Notify Moderator

I purchased 2, 4" muffin Fans. Run in series. 1 intake, 1 exhaust.


Dale & Susan
DaGirls II Rv - Dakota & Tilly Traveling Companions.
2008 Alfa Gold, 2015 Ford F150 XLT
Roadmaster and Air Brake System
1600 Watts, Magnum Inv/Chg&Solar
800 Lithium Battery
DaGirslRV Blog

theoldwizard1

SE MI

Senior Member

Joined: 09/07/2010

View Profile


Offline
Posted: 09/13/21 02:51am Link  |  Quote  |  Print  |  Notify Moderator

The best/quietest computer fan (12v) are made by Noctua.

S Davis

Western WA

Senior Member

Joined: 08/11/2005

View Profile


Offline
Posted: 09/13/21 07:13pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the input I am going to go with two Noctua NF-A14 iPPC-2000s to start and will monitor temps and add more if needed, I have a four fan control with individual temperature settings so I can stage them based on the temperature in the enclosure.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Tech Issues

 > Inverter cooling fan
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.