Hi, I am new to this and like to know how I can charge my HVAC system. My AC coil freeze up when I lower my AC temp to 74. I found out that I need to recharge my AC.
I have the guage and R22 to charge my system. I hockup the low and high pressure, leak the air from the pipe, connect the third hose to the R22.
I see the lower pressure PSI is about 48 and high side is about 200. Base on the chart low pressure needs to be about 60.
I made sure all the ice were melted before I charge the system to have better pressure reading before I charge the system. I was able to charge the system for about 1 lbs after trying about 10 minutes. I know it was about 1 lbs coz I weight it before and after. BTW: I was told I should charge the freon upright so I did charge my system upright.
I AC is still not fully charge coz the low side pressure still around 50 and I can still see the ice forming when I lower the temp.
How can I make my HVAC take freon charge? Am I doing something wrong?
Thanks for your help!
I have the guage and R22 to charge my system. I hockup the low and high pressure, leak the air from the pipe, connect the third hose to the R22.
I see the lower pressure PSI is about 48 and high side is about 200. Base on the chart low pressure needs to be about 60.
I made sure all the ice were melted before I charge the system to have better pressure reading before I charge the system. I was able to charge the system for about 1 lbs after trying about 10 minutes. I know it was about 1 lbs coz I weight it before and after. BTW: I was told I should charge the freon upright so I did charge my system upright.
I AC is still not fully charge coz the low side pressure still around 50 and I can still see the ice forming when I lower the temp.
How can I make my HVAC take freon charge? Am I doing something wrong?
Thanks for your help!
