Hi there,
this will depend on the type of refrigerant used and the relevant humidity and ambient temp of the day, but as a rule of think, vent temp should be around 3-6 Deg C at best. if the A/C is not as cool as you want, you may have a leaking heater tap with is drawing cold air from the system. but remember vent temp is a very poor indication of the system condition, a wet bulb thermometer should be used, you A/C specialist will advise further.
Mark (mhpautos)
Aug 19, 2008 at 6:23 PM