300psi high side and 80psi low side
Suction pressure
You need a chart which identified the relationship between the ambient air temperature and the pressure, as well as a manifold gauge set.
do you have a heat pump? are you running unit in heat? if so and the steam is comming from outside unit, this is normal in the units defrost cycle
normal low side operating temperature for an AC system using R134-a refrigerant is between 21 and 35 p.s.i. high side pressure between 190-220 p.s.i.
The high pressure side.
Your outside AC unit may be blowing cold air because it is functioning properly and is working to cool the air before it enters your home. This is a normal operation of an air conditioning system.
A pressure switch a valve that shuts off the unit when the pressure is to low or to high
Low pressure for R 410 is 118 psi
The low pressure (vacuum) side.
Many home AC units are sealed, and there is no way for a homeowner to add refrigerant.
Installing a horizontal AC unit in your home can provide benefits such as efficient cooling, space-saving design, and easier maintenance.
To properly install a window AC unit in your home, follow these steps: Choose a window close to an electrical outlet. Open the window and measure the width to ensure the AC unit fits. Install any mounting brackets or supports provided with the unit. Place the AC unit on the windowsill and secure it in place. Close the window securely around the unit. Plug in the AC unit and test it to ensure it is working properly.