Originally Posted by Jolly Roger bus 223
i assume this yanmar is diesel fired?
im guessing gasoline since the button says "choke"?
jolly roger has it right you can move one compressor over to the engine (im assuming DT466E?) and run it off the engine.. this is assuming its truly 2 separate systems which it appears to be from the pics... it would essentially be obtaining a bracket kit (Trans/AIR used bracketry systems) and then lengthening / shortening the lines as required..
those systems are definitely noisy.. Ive worked on them before..
roger - they were offered in both gas and diesel.. the diesel units were considerably more expensive new so some buyers opted for a separate Tank and fuel to run it.. the powerpack was offered by TransAIR however its not a TransAIR part number.. they were just an option for those that wanted to run A/C without idling.. this was something i saw in California and new york where small engines were allowed to idle but not big ones so a bus could be kept cool idling without its big engine turned on.. some of those regulations have changed over the years after a couple truckers were near killed because they couldnt idle in extreme weather
this type of system has been around for decades.. its what I would use to AIr-condition the full bus of my Vintage Superior as thats how it was done on gas engin e busses back in the day..
since the PowerPack is separate the biggest issue would come about if the TransAIR systerms run on 24 volts... PowerPacks could produce 12 and 24 volts and the A/C was available in both.. your school bus runs on a 12 volt system.. if your A/C systems are 12 volt then keeping one is pretty easy... otherwise you would need to generate 24 volts somehow.. (2nd alternator.. or a 12-24 VDC voltage booster that can take some serious Amperage)...
since TransAIR is still in business you can contact them with your VIN and get more info on your system.. they wont help converting it however you can find out how its all set up.. ie type of compressors used, BTU ratings, Voltages etc...