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Dual 2 Speed Fans with Override On Switch


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re3fer 
Member - Posts: 1
Member spacespace
Joined: December 24, 2020
Location: California, United States
Posted: December 24, 2020 at 2:27 AM / IP Logged Link to Post Post Reply Quote re3fer
Attempting to install 2 radiator fans each with a high and low setting (each fan has 3 wires) and a temp activated switch my preferred operating options would be
1. Fan (A) would turn on low when ac is activated
2. Fan (A) would turn on high when ac and temp sensor is activated or when cab override switch is activated
3. Fan (A) would turn on low when temp sensor is activated
4. Fan (B) would turn on low when temp sensor is activated
5. Fan (B) would turn on low when ac is activated
6. Fan (B) would only turn on high when triggered by 3 pos neg trigger switch in cab
7. Fan (B) would stay at low if ac and temp sensor are activated
8. 3 pos neg trigger switch in cab must override both fans to high setting
   Cab   [ all high
Switch [ off
             [ Fan (B) high
    Details:I want switch to be on neg triggers so I have less voltage running around in case of accident. All fans will be initially powered from ignition on source. Each fan is 30amp. A indicator light for fan (B) when the override is activated would be nice as well
If this setup is even possible could someone please draw up a diagram or give any suggestions to my proposed plan/see any flaws in plan I would be greatly appreciative.
Compromise is not an option !!
...unless your married
than it's basically all compromise
jay_poorsport 
Member - Posts: 4
Member spacespace
Joined: October 24, 2020
Posted: July 20, 2021 at 8:32 AM / IP Logged Link to Post Post Reply Quote jay_poorsport
Did you ever solve this?

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