In AC terms there is what is called TD (temperature differential). It is usually accepted that target TD is 20 deg F or if the air going into the unit is 75 deg f then it should exit at 55 deg f. therefore the temperature discharging from the unit should be about 20 degrees cooler than the air entering the unit. Depending on the temperature, humidity etc. this may be an inaccurate expectation. If you are not getting 20 deg TD, then it is time to evaluate your system and conditions. First, the conditions. Is there high humidity? the amount of energy used by the unit to cool the air is also used to remove humidity. With a finite amount of energy available, it is split between removing water vapor and cooling the air. The higher the humidity the less energy that can be used for cooling. Next the equipment. if the equipment is dirty, including the coils and the filters. the amount of air that can pass over the coils is reduced, as well as the efficiency. Look at TD on the line-set as well. there are two lines on your unit one large one small. the temperature should be obviously different. if not then you need a qualified service tech to help determine why. There are two parts to your cooling unit, one inside above the fan on your furnace and one outside. Check both. This is just a start, hope it helps Terry
15-20 degrees cooler than the air returning from the home to the air handler.
It would be advised if you do not want to get cold.
You need to have your refridgerant recharged
Well it should blow cold while driving and stopped. You probably need to get your AC recharged. Hope I helped!!
40f - 45f is great
No On a cold day there its warmer than my mom sets the AC at home.
Yes, in fact in most modern cars the AC automatically comes on with the Defroster.
Pressure gauges. In a home or car AC there is small pipe and a large pipe going to the compressor unit outside or in the engine compartment. The large pipe should be cold and "sweating" ( dripping water).
55 degrees to 60 degrees
Ceiling. Cold air fails
Some home appliances, specifically, resistive loads such as toasters, irons, and the resistive portions of ranges, will work on AC or DC. Motors, such as timers, blowers in dryers, or rotary sources in washers, require AC. In general, home power is AC, so home appliances should be assumed to be AC, not DC, unless you have a special case home, such as a solar powered home, running on DC.
I have a 01 Buick and the ac temp that comes out of the vents is around 50 deg - at idle and around 45 deg at highway speed - Is this normal a normal temp? or should the ac temps be colder?
check you thermostat for the temp setting
Yes if it is set to heat indoors but if it isn't than go get it checked out by a qualified AC technician.
Simple, you ac does not blow cold air even though you have it turned on and the temperature set to cold.
If you are not getting cold air in your home you should call your local ac man to see what is wrong. Because, omg, It could be very simple or something complex. Capacitor is the likely suspect.
Most people turn it up so the ac will not go on and use much electricity. Why should they pay for electricity to cool an empty house?
Well like wearing a heavier coat during cold spells, insulating your home gives you and your home protection from cold.
Check the pressure on the low side of your ac it should be between 28 and 38 PSI, you are likely low on refrigerant
If 1993 suburban rear ac not cold how can check the expansion valve?
no it may be overheating or it ma have not been fitted properly, you should get it checked
Go home immediately, and ice it.