What causes high head pressure on an AC unit?
Once the air gets to the condenser, it will remain at its top and not condense. The subcooled liquid seal at the condenser’s bottom will prevent the air from passing out of the condenser. This air and water vapor will take up valuable condenser surface area and cause high-head pressures.
Can air conditioning cause head pressure?
Extreme Temperatures Lastly, your AC can also give you headaches if it doesn’t control your house temperature properly. The effect arises since extreme temperatures, both high and low, can trigger headaches. For example, low temperatures constrict blood vessels, which then trigger headaches.
What should AC head pressure be?
Actual readings will vary according to ambient temperature. The low-side should be near 30 PSI at 90 degrees Fahrenheit or less. Pressure that is too much lower or higher shows there is a problem. On a properly working system, high-side pressure will be about twice the ambient temperature, plus 50 PSI.
Can Too Much AC cause headaches?
Your AC not only cools your air, it lowers the amount of humidity of the air. Lowering humidity is good to a point, but overly dry air can dehydrate your body. And even mild dehydration can cause mild to moderate headaches.
How do air conditioners prevent headaches?
Combat this effect by running a humidifier in conjunction with the AC and making sure that you drink plenty of water during the day. Blood Vessel Contraction: When you get too cold, the blood vessels in your brain can contract, which is one potential cause of a headache.
What causes low head pressure on AC unit?
The two most common causes of low head pressure at an air conditioner or heat pump compressor motor are: Refrigerant under-charge, due to a refrigerant leak or improper charge. TXV (TEV) malfunction, over-metering refrigerant.