On coaches with the house battery at the rear and the compressor below the power cabinet, this is a common modification. Using the OEM compressor
power wire to power a relay, then run the compressor power from the house battery through the relay. The power coming from the house battery is
tapped off the #1 gauge power wire running from the rear coach battery to the from boost solenoid. This provides for a very low voltage drop under the
heavy current of the compressor.
Of course the power to the relay should be fused as close to the source as possible.
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
power wire to power a relay, then run the compressor power from the house battery through the relay. The power coming from the house battery is
tapped off the #1 gauge power wire running from the rear coach battery to the from boost solenoid. This provides for a very low voltage drop under the
heavy current of the compressor.
Of course the power to the relay should be fused as close to the source as possible.
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
