Something to think about....
The Viper uses two relays for the fan: One general fan relay and the
other for the Low/High operation. Power wires (from the fusible link)
to the relay and then to the fan, are 12ga - ground is also a 12ga wire.
There are two circuits that control the low/high speed:
Circuit C2 - Radiator Fan Relay (ON) ** You can use the adjustable
permacool/flexalite switch here **
Circuit C21 - Radiator Fan Low/High Speed ** simple toggle switch on a
relay **
The power runs through both relays under Low or High-Speed operation.
BTW: The Fuse used on the Viper is a 20A fuse
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of TJG
Sent: Sunday, May 04, 2003 9:56 AM
To: dakota-truck@dakota-truck.net
Subject: DML: Re: Viper Fan question
with the fan out of the truck, it was fine on high with a 30a fuse. now
after I put it in (more current draw do to increase in vacume), it was
blowing that fuse. the realys I am using are 30a permacool, so what I
did was installed another one in parrallel with the high speed wire to
feed the extra current, both of which have 30a fuses. the low speed is
doing just fine with a single 30a. Im sure my setup is nothing like
anyone elses (sounds that way), Im using the permacool adj temp relay,
with ac on/off sensing wire. I have it wired with 3 switches. one 3
pos switch that will turn the fan completely off, on high when "called
for" and on low when called for. Another switch that will force the
fan to come on, in whichever speed selected (good for stagin lanes) and
the last will or will not allow the permacool relay to turn the fan on
when the compresor comes on (good for the highway). I really wanted to
amp the fan out, but GOD DC amp meters are exspesive, and in my work I
have no need for one, only AC. I could probably draw it out on the
computer with MS Paintbrush or something, it would just take a while, I
wish I had a scanner, damnit.
Anyway, Im really sorry about what happened to your family... theres
not much in times like this that many can do to make things better,
except hold on to each other and suport one another the best you can.
TJ
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