If you're reading 110 psi on the low side and over 500 psi on the high side you might want to run far away from that unit. It's going to go boom. Typical readings should be around 65-80 on the low and 225-275 on the hight side. Of course this all depends on the load inside, temps outside, and the condenser your running. Is this a heat pump, or straight AC?
Originally posted by morepwr
hello ..im trying to fix my ac unit..i bought the house new ten years ago and it came with a bdp air conditioner the house is 1900 sq feet..im not sure of the tons.. i get 60 to 63 deg out of the registers..but upstares stays hot the lowest i can get it to is 85 deg in the afternoon and if i run the unit all day it will cool down to 80 at 11.30 pm..yersterday i measured the outside temp and it was 110 deg.. the temp at the ac fan was 120 deg.. i used a set of old manifold gages and the low side read 110psi and the hi side when you first start the unit peg the gage over 500psi.. then droped down to 495.. can my ac be overcharged.. what psi should i be looking for ..the ac modle number is 561aj048-f thanks for your help.. bye