The device is used on tractor trailer trucks, and required by many states. It allows the heater and air conditioning units to operate while the truck is switched off.
2006-10-16 01:55:04 · 4 answers · asked by nightsky0862 1 in Cars & Transportation ➔ Other - Cars & Transportation
the name of the only unit that i know of that runs the actual trucks ac/heat is the Willis apu.it somehow it is tied into the trucks units as an owner/driver myself i don't want to put all that use on the trucks systems i would rather know my ac is going to work while i'm driving through the desert. i personally use rigmaster's at this time but when i replace them i will buy systems that is made in America.
2006-10-16 06:02:51 · answer #1 · answered by supermover 2 · 0⤊ 0⤋
There are all varieties of rules for lights on great autos. Trailers over a undeniable width could have 3 lights interior the decrease back no longer which incorporates the brake and change indicators, over a undeniable length they could have lights on the section too. autos over a undeniable GVW could have the lights on proper you asked approximately. All of those regulations are for defense. different drivers can see those autos at nighttime.
2016-12-26 20:29:12 · answer #2 · answered by ? 3 · 0⤊ 0⤋
APU, or auxiliary power unit.
It would be even cleaner and quieter for such trucks to run their A/C and such on electricity while parked, but I don't know of any requirements for that.
2006-10-16 02:05:21 · answer #3 · answered by Engineer-Poet 7 · 0⤊ 0⤋
generator?
2006-10-16 02:02:45 · answer #4 · answered by c0mplicated_s0ul 5 · 0⤊ 1⤋