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Old 10-18-2006, 04:29 AM   #1 (permalink)
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Cool radiator fan power-on delay

guys, if you can still remeber I posted a thread regarding power-on delay for the electric radiator fan on my Carry truck, since no thermostat was installed on it. I have now attached a module in series with the fan as a temporary solution. It takes approximately 1.5 minutes for the fan to start after I switch on the ignition. Eventhough without the module, I don't yet notice any sign of my battery getting weak with the fan firing off before the starter, I think the current setup would really help since there is no initial load for the battery until the engine has started running.

This is still no substiture for the real duty of a thermostat but at least we could be kind to our batteries.

Attached is a schematic diagram i got from the net. I spent less than Php100 for the whole assembly, excluding the relay. You can experiment with the capacitor to vary the time delay. I used 1000 microFarad for the 1.5 minute delay.
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Old 10-19-2006, 08:44 PM   #2 (permalink)
 
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Nice work Lance_pad. Thanks for the diagram.
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Old 10-29-2006, 11:36 PM   #3 (permalink)
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Quote:
Originally Posted by lance_pad
guys, if you can still remeber I posted a thread regarding power-on delay for the electric radiator fan on my Carry truck, since no thermostat was installed on it. I have now attached a module in series with the fan as a temporary solution. It takes approximately 1.5 minutes for the fan to start after I switch on the ignition. Eventhough without the module, I don't yet notice any sign of my battery getting weak with the fan firing off before the starter, I think the current setup would really help since there is no initial load for the battery until the engine has started running.

This is still no substiture for the real duty of a thermostat but at least we could be kind to our batteries.

Attached is a schematic diagram i got from the net. I spent less than Php100 for the whole assembly, excluding the relay. You can experiment with the capacitor to vary the time delay. I used 1000 microFarad for the 1.5 minute delay.
Hello Lance_pad,

I'm going to try it on my unit. Thanks.
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Old 06-20-2007, 02:46 AM   #4 (permalink)
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Speaking of electronics, aside from timing relay of Lance pad, we can actually install a thermal switch as it was originally installed and easy to install.
I am also developing a digital temperature panel that displays a temperature from 0 to 100°C and controls 2-setpoints that triggers the radiator fan and an alarm if the engine temperature is about to overheat. Quite complicated but I will be posting some pics soon after completing my 6months actual test if this circuit passed the obstacles.
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Old 06-20-2007, 03:27 AM   #5 (permalink)
 
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thanks for this input sir lance_pad... i'm gonna try it myself.. =)
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Old 06-20-2007, 03:42 AM   #6 (permalink)
 
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Quote:
Originally Posted by syfertex
Speaking of electronics, aside from timing relay of Lance pad, we can actually install a thermal switch as it was originally installed and easy to install.
I am also developing a digital temperature panel that displays a temperature from 0 to 100C and controls 2-setpoints that triggers the radiator fan and an alarm if the engine temperature is about to overheat. Quite complicated but I will be posting some pics soon after completing my 6months actual test if this circuit passed the obstacles.

Sir syfertex, just want to ask you if your bumper is custom made or did come with the van as standard? it look great!
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Old 06-27-2007, 10:06 AM   #7 (permalink)
 
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Quote:
Originally Posted by syfertex
Speaking of electronics, aside from timing relay of Lance pad, we can actually install a thermal switch as it was originally installed and easy to install.
I am also developing a digital temperature panel that displays a temperature from 0 to 100°C and controls 2-setpoints that triggers the radiator fan and an alarm if the engine temperature is about to overheat. Quite complicated but I will be posting some pics soon after completing my 6months actual test if this circuit passed the obstacles.
Interesting... I'd like to test it in parallel... can you post your circuitry...

Last edited by ronfer2001; 07-06-2007 at 05:15 PM.
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Old 10-01-2007, 01:06 AM   #8 (permalink)
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Quote:
Originally Posted by roblacer
Sir syfertex, just want to ask you if your bumper is custom made or did come with the van as standard? it look great!
@roblacer: Bro, sorry for the late reply. Medyo busy kasi ako ngayon sa pagsesetup ng sound system ko.

My Zuki is a pick-up type and the bumper is already attached during my purchase. The bumper's siding pattern was blended with the side doors. Take a visit on my garage.

Tomorrow will be the schedule of my Zuki for body modification, I will be posting some pics after the operation.
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Old 01-31-2009, 05:41 AM   #9 (permalink)
 
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Thanks Bro. I will build one soonest!
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