Damn I never knew that.03redfiregt said:The difference is a/c pulls in outside air and cools it before it goes into the cabin. Max a/c recurculates the air already inside the car. So the air will be colder and it does'nt have to work as hard.
propellerhead said:MAX A/C also keeps the condenser (or whatever it is called) working. Regular A/C will cycle on and off to maintain your desired temperature. MAX is meant to be used for the first 5-10 minutes until the car cools off a bit. Then switch to A/C.
Exactly what he said.rickster99 said:Wait a minute. If that is the case then it contradicts what others have said before you. That means that MAX A/C is less economical.
340.29m/s said:A/C definitely pulls air from outside, Max definitely pulls air from inside.
How come?Premium Speed said:^^^^^^^^
if you have to sit without moving with the a/c on....make sure it is on A/C and not max
rickster99 said:Wait a minute. If that is the case then it contradicts what others have said before you. That means that MAX A/C is less economical.
joeymatt said:Max A/C indicates recirculate only. It does not keep the compressor engaged (100% duty cycle). The compressor will still cycle depending upon the conditions. The systems that cycle the compressor do so usually given readings from either a pressure or temperature sensor reading on the low side of the system. If the low side system pressure drops below a certain point, say 25 psi (25 degrees) - estimate, the compressor will cycle off. When the pressure raises above this point the compressor will cycle back on. For this reason, when a system is low on refrigerant the compressor short cycles, because it reaches this cycle off point very quickly when the compressor is engaged.
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