Long story short. Engine swapped a 1999 Cat 3406E into the truck.
My understanding is that the ECM on the old D16 controlled the A/C Compressor, fan over-ride and took the inputs from the high/low sides and transmitted that to my climate controller in the cab.
I wonder if there is a direct output from the Climate controller and direct inputs I could direct wire the sensors, compressor clutch relay and fan over-ride relay directly to the Controller?
Does the cummins version have a different control scheme?
I would love to just take this to a shop and pay to have this done quickly, nobody I call will even look at it, so I have to try and troubleshoot it myself....
Any ideas on what to do?
VT880 HVAC Diagram? Trying to get A/C working
Discussion in 'Volvo Forum' started by Joeziah, May 13, 2022.
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Run an old school thermostat in the evaporator and run ac compressor power thru there run constant ground to compressor.
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Found you a place that can get it done give me a call when you have a chance.
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Awesome, I'll call you on Monday and chat about it.
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