I’m a little confused. Didn’t get instructions with pressure switch. So two white wires go to compressor1 and 2. Then I have a ground and one blue ignition? As well as two 12 positives. On the two positives do I run them both on a single 10g wire with 60amp fuse to battery or what do I do? And the ignition one…will it be fine on my cig lighter run wire? I’m concerned that it might draw too much current and start melting my trucks wire harness.
I’m kinda confused.
http://www.hornblasters.com/support/manuals_and_schematics
It should have the manual you are looking for.
Are you running 2 compressors?
Yeah I already looked at the diagrams on that page but they do not specify what gauge wire is safe to run with dual compressors.
I ran 10 guage with a 60amp fuse.
with the cig lighter one i say just wire it right to be safe.
Unless someone else did that??
I ran 2 x 10awg wires (12awg will work fine too) with a 30 amp in-line fuse in each power line up by the battery. You can run them on the same power wire with a 60 amp fuse but I’d rather split them up in case one comp decides to screw up it only has 30 amps until the fuse would blow. If they were both on one 60 amp fuse and one of the comps decided to burn up…well it would have a full 60 amps to draw until the fuse would pop. Up to you.
The trigger wire doesn’t draw much current so you can tie it into the lighter no problem (I’ve even run power to a radar detector many times that way so I could hide the line). Or you can use a fuse tap that you can insert into your fuse panel. That’s what I use now. I’ve got my pressure switch, radar detector, and digital air pressure gauge connected this way.
If you want the comps to be switched on/off with the ignition then tap into a fuse that is also switched i.e. a fuse for the lighter or the radio. If you want them to constantly have power or if you want to insert your own toggle switch then you can tap into a fuse that is always hot.
These are sold at most auto parts stores, radio shack, or online and they only cost a couple bucks:
