Sweet Electric Fan mod 04 5.4 AC override feature
06-21-2015, 10:49 AM
#51
Senior Member
Sigman did you loose your headlights left on chime when you did this? I seem to have lost mine in my truck which was something I LOVED about it before I did this. I did something similar except when I found out my Volvo Controller needed a ground connection I disconnected the relay from the black with green stripe and I grounded that prong on the relay.
06-21-2015, 12:16 PM
#52
Sweet Electric Fan mod 04 5.4 AC override feature
Originally Posted by gmachinz
Good Mark VIII fans are getting tuff to find-this is my "Big Dog" fan assembly I built to be the most stout relay triggered variable speed dual fan assembly you can find. (2) 50A switching relays and (2) 100A load stabilizing relays make up this HD version of my 3-speed conversion harness! I'm waiting on Motorcraft fan motor pigtails then I'll be ready to pull some amperage draw numbers for it on low, medium and high speed. The fan assembly is for a 2010 F-150 and the control harness is of my own design. Only requires 6 connections besides an optional trinary switch tie-in for the AC.
Are you recommending a trinary switch for AC switching? Or can I just trigger a relay from the AC compressor? Which ones better?
Curious to see some pics of this controller and a diagram.
06-22-2015, 12:00 AM
#53
I have my controller design ready now-I just want to verify the amp draws so people can be informed on the draw these fans have for each speed. I was hoping to have the motor connectors in this weekend but they haven't shown up-tracking shows they should be here Monday however-so, if you want to PM me with your email I'd be more than happy to provide details on the kit and the cost if you'd like one.
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chayes627 (06-23-2015)
06-23-2015, 04:26 PM
#55
I'm going to be running these 2010 f150 fans, where do I find your controller for sale?
Are you recommending a trinary switch for AC switching? Or can I just trigger a relay from the AC compressor? Which ones better?
Curious to see some pics of this controller and a diagram.
Are you recommending a trinary switch for AC switching? Or can I just trigger a relay from the AC compressor? Which ones better?
Curious to see some pics of this controller and a diagram.
-PWM starts low and ramps up to 50 percent
-A/C control
- VSS control.
Oh and don't tap it to A/C to the compressor but to the A/C ON/OFF signal to avoid cutting on and off.
06-23-2015, 08:42 PM
#56
Well....here are the results if the amp draw for this monster fan assembly using my progressive 3-speed control harness. It has a provision AC high speed override and/or can be tied into the NO circuit of your factory AC trinary switch. There is NO inrush surges between speed ramp ups nor is there any spiking when descending in speeds either. Load relays rated @ 100A don't even break a sweat running this fan assembly!
If anybody is interested, I can supply these kits. Due to the precise method of soldering/routing I'd much rather install this harness on your existing fan assembly or you purchase new, drop ship and I can build/test and record amp draw data then ship to you. This definitely isn't a fan assembly any old relay kit can handle-not enough data IMO on aftermarket PWM controllers to run this over the long haul but if anybody has numbers to compare, I'm interested in seeing them! At least this commercial grade relay kit is rated @ 250,000 switching cycles at full output so with it working 50% capacity and less, I doubt anybody will have any problems with it. PM or post with questions!
If anybody is interested, I can supply these kits. Due to the precise method of soldering/routing I'd much rather install this harness on your existing fan assembly or you purchase new, drop ship and I can build/test and record amp draw data then ship to you. This definitely isn't a fan assembly any old relay kit can handle-not enough data IMO on aftermarket PWM controllers to run this over the long haul but if anybody has numbers to compare, I'm interested in seeing them! At least this commercial grade relay kit is rated @ 250,000 switching cycles at full output so with it working 50% capacity and less, I doubt anybody will have any problems with it. PM or post with questions!
06-23-2015, 08:47 PM
#57
As built-ready to install:
1.) Common charge post/battery junction lead
2.) HD chassis ground
3.) Switched IGN source lead
4.) AC/manual override switch lead
5.) Low speed temp switch lead
6.) Medium speed temp switch lead
optional: AC/trinary switch leads ( not to be connected unless tie to a manual override or trinary switch circuit)
1.) Common charge post/battery junction lead
2.) HD chassis ground
3.) Switched IGN source lead
4.) AC/manual override switch lead
5.) Low speed temp switch lead
6.) Medium speed temp switch lead
optional: AC/trinary switch leads ( not to be connected unless tie to a manual override or trinary switch circuit)
06-24-2015, 08:24 AM
#59
Nope...we don't want that....I'm just confirming (or un-confirming) that the fans pull 60A on full speed-I had to see for myself. Has anybody else measured the draw on high speed to compare? Perhaps a fan assembly with a few years of use might pull close to 60A? Curious....
06-24-2015, 02:31 PM
#60
Senior Member
sigmanf150 I can't see anything in the PM's you sent me on this subject. Did you loose your headlight warning chime when you did this behind the dash add of the relay? I seem to have lost mine but I don't know if it is related or if I pulled something out, or if it is coincidental.