That's what I have done on my 59 TR3A. I have a period radio rack that is
setup up with gauges and switches, The gauges are located in the radio
speaker screen instead of a speaker. I have the fan wired with a relay to
the rack. At the rack there is a period dash push/pull switch and two small
(Radio Shack) diode lights under the switch. One red and one green. The fan
will not run unless I pull the switch on. Then the red light comes on. When
the fan comes on, the green light comes on. If the fan stops, the green
light goes out. This enables me to know when the system is live and the fan
is running/working properly. It all runs through a contemporary fuse block
up behind the radio rack out of sight.
Alex
59 TR3A
72 TR6
----- Original Message -----
From: "Randall" <tr3driver@ca.rr.com>
Cc: <triumphs@autox.team.net>
Sent: Monday, February 01, 2010 2:14 AM
Subject: Re: [TR] relays -to use or not to use
> Gary O'Hagan wrote (I think):
>
>> But what do I do with the A/C connector?
>
> That's where your dash override switch goes, if you want one. Otherwise,
> just tie it off and leave it alone.
>
> Michael Porter wrote (I think):
>
>> >> With a little imagination, you could probably work out a
>> system for
>> >> the electric fan so that the fan runs with the ignition off until
>> >> the fan thermostat cuts out, but won't run with the
>> ignition switch
>> >> off if the manual override switch is on (that might take two
>> >> relays, though).
>
> Easy with the DeRale kit. Connect the yellow wire to "always hot" (this
> allows the fan to run anytime the sensor is above the set point); but
> power
> the override switch from switched power (so it will only override when the
> ignition is on). Only caveat is to be sure the fan can cool the sensor,
> so
> the fan doesn't run continuously on a hot day.
>
> With a little more imagination, you could probably figure out how to put a
> timer on the yellow wire, to limit the fan to running say 10 minutes after
> the key is off. But that seems way over the top to me, especially for a
> lowly TRactor motor.
>
>> >> Never let anyone drive you crazy when you know it's within
>> >> walking distance....
>
> Good advice, but far too late ... <G>
>
> Randall
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