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Why Ac compressor noisy at start up compressor sweating sub cooling ten return air seventy six register air fifty seven outside air eighty eight pressures sixty and two hundred?
Wiki User
∙ 14y ago
Assuming the refrigerant is R-22 and that the metering device is not a TX valve:
1. Determine air delivery system is operating properly by removing air filter(s), cleaning blower fan wheel, and (where applicable) replacing the fan belt.
2. Determine the size of the condensing unit in tons (1 ton = 12,000 BTUs). For every ton of cooling, you need a minimum of 350-400 CFM of airflow.
3. Measure the airflow. You can use the temperature rise method (measuring return and supply temperatures after 10 minutes of heating, and clocking the meter for natural gas), a hotwire anenometer, or a rotating-vane anenometer. Ensure that it matches or exceeds the requirements of 350-400 CFM/ton. Rectify if the airflow is too low.
4. Measure the return air Wet Bulb (not Dry Bulb) temperature.
5. Measure the outdoor air Dry Bulb temperature.
6. Most equipment will give charging charts indicating the proper superheat or subcooling readings for the R.A. Wet Bulb and outdoor Dry Bulb. If you can find nothing, you do not want to exceed 10 F degrees superheat (measured at the outlet of the evaporator coil) or go below 15 F degrees subcooling (measured at the liquid line leaving the condensing unit).
Wiki User
∙ 14y ago
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What is the function of animals sweating?
Sweating has the function of cooling an animal or person.
What is the unique role of sweating in your body?
sweating maintains the body temperature by evoporative cooling
What is unique role of sweating in your body?
sweating maintains the body temperature by evoporative cooling
How does evaporation causes cooling with examples?
sweating
How do you know if your AC compressor is over chaged?
If the unit was freezing the evaporator before you charged it and now you do not have cooling, you may have overcharged it. The best way to determine this is to have a certified AC technician check the actual pressures of the system as most do it yourself cans do not have acurate gauges. The compressor may run constantly, but not cool or the compressor may run and then blow a fuse or the compressor may run and there is no cooling, but the only way to acurately determine an overcharge is to measure the pressure with accurate gauges.
Sweating cools the body by what?
The cooling happens due to the sweat evaporating away from the skin.
What cooling mechanism is used by horses?
Sweating. A horse sweats to keep cool. The horse has the same cooling mechanism that humans do.
Why is sweating a useful cooling device for humans?
Sweating is extremely efficient at cooling humans down. It works by causing liquid to come out of a person's pores. When the liquid evaporates, the person's body starts to cool down.
Why do you perspire on a hot day?
Sweating is your body's way of cooling down itself.
Lumina 2003 ac not cooling even when compressor is replaced?
Was unit evacuated before recharge after compressor replacement?
How many compressure are in refrigerator?
Normally, there is only one compressor in each refrigerator. The compressor helps in cooling the inside cabins of the refrigerator.
What is high side and low side in air conditioning?
High side and low side refer to the pressures in the two halves of the system. AC works by compressing refrigerant in the compressor ( the beginning of the 'high side'), cooling in the condensor it, and then expanding it to absorb heat ( where it enters the low side). Then the low-side piping takes is back to the compressor, where the cycle starts over.
