Imma do some research and apparently a rooftop RV AC unit needs a 50 amp breaker, that's why a generator is used to run them. You think it would be okay to run it while driving and or idling?
Rooftop AC unit
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 85COE, May 20, 2022.
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BoxCarKidd and Another Canadian driver Thank this.
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At current fuel prices a generator wound pay for itself in short order over idling the truck.KB3MMX and spsauerland Thank this. -
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You're not going to run 50 amps AC on an alternator. When I get close to 20 amps, the voltage drops too much to keep up and the inverter resets. If you try to run a generator while driving, it will probably shut down due to low oil protection activating from the movement of the truck. I have plugged my mini split into the inverter while idling, and dash voltage drops to 12.4 while cooling on a hot, sunny day when my truck AC was not working. It may have eventually leveled off somewhere around 13.1 I'm guessing, but I didn't stay parked long enough to find out. I'm pretty sure it's only a 15 amp appliance.
BoxCarKidd and spsauerland Thank this. -
An RV rooftop A/C has a peak load of about 21A. Larger RVs with two A/Cs, microwave, coffee pot and other accessories will have a 50A service.
KB3MMX, AModelCat and spsauerland Thank this. -
I thought about putting in a compressor, but wouldn't that require some major work due to belts? -
spindrift Thanks this.
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You just wanting to retrofit your existing A/C or trying for sleeper setup? If just trying to get A/C look into Vintage air that they use in hotrods Vintage Air Builder Series - Vintage Air. @W900AOwner did this with his truck and it is the plan for my 82.
Last edited: May 21, 2022
BoxCarKidd, AModelCat, kranky1 and 2 others Thank this. -
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