Electric fan ?
Drifting
Joined: Aug 2000
Posts: 1,758
Likes: 4
From: Medford, Or
Re: Electric fan ? (myisa69)
myisa69- Connect the fans directly to the battery through a relay. You need a relay to control the fan(s) off/on with a mechanical or thermal switch. Here is a simple schematic how my dual fans are wired in my Vette. You can connect to the large red wire on the altenator for your 12 volt supply.
Dan :cheers: http://www.vetteworksonline.com
[Modified by vettedan, 11:06 AM 6/27/2003]
Dan :cheers: http://www.vetteworksonline.com
[Modified by vettedan, 11:06 AM 6/27/2003]
Thread Starter
Racer
Joined: Jun 2002
Posts: 345
Likes: 0
From: sanjose ca
Re: Electric fan ? (The Dude)
The closet source of voltage for the fan are the alternator then starter , but they are hot all the time . Does it make the fan stay on even i shut off the engine? Should I tap it to the ignition wire ? What a proper way to do this?
The instruction came with the temp . sensor switch showing connect to alt. for 12 volts. I am confuse.
[Modified by myisa69, 9:59 AM 6/27/2003]
[Modified by myisa69, 10:08 AM 6/27/2003]
The instruction came with the temp . sensor switch showing connect to alt. for 12 volts. I am confuse.
[Modified by myisa69, 9:59 AM 6/27/2003]
[Modified by myisa69, 10:08 AM 6/27/2003]
Intermediate
Joined: May 2003
Posts: 32
Likes: 0
From: sterling heights mi
Re: Electric fan ? (myisa69)
run a switch or an ignition hot to a relay (starter to circut breaker to relay to
pos on fan)
i ran mine with an ignition hot and an override switch.
hope this helps
pos on fan)
i ran mine with an ignition hot and an override switch.
hope this helps
Drifting
Joined: Aug 2000
Posts: 1,758
Likes: 4
From: Medford, Or
Re: Electric fan ? (myisa69)
Quote"The closet source of voltage for the fan are the alternator then starter , but they are hot all the time . Does it make the fan stay on even i shut off the engine? "Quote
myisa69-Your fan will not run if you have a relay in the circuit. The best way is to install a positve lead from the ignition switch (RUN) to the primary (coil) side of the relay. When you have the key in the run condition the primary side(coil) of the relay will close the contacts of the secondary side of the relay thus turning the fan on. Look at my schematic above. It's all there. The picture is clearer if you click on it.
Dan
myisa69-Your fan will not run if you have a relay in the circuit. The best way is to install a positve lead from the ignition switch (RUN) to the primary (coil) side of the relay. When you have the key in the run condition the primary side(coil) of the relay will close the contacts of the secondary side of the relay thus turning the fan on. Look at my schematic above. It's all there. The picture is clearer if you click on it.
Dan
Race Director
Joined: Mar 1999
Posts: 10,258
Likes: 1
From: Calif.
Re: Electric fan ? (myisa69)
The closet source of voltage for the fan are the alternator then starter , but they are hot all the time . Does it make the fan stay on even i shut off the engine?
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