I have two Carriers insatlled in 1999 via builder. Not sure of seer but I'm sure it was no more than they had to install.
They sit on the west side of my house and get unobstructed direct sun. WE have already seen 95-98 temps this week so it gets hot.
Does installing a solar screen above and in front of these units make sense? Some claim to block 90% of sun heat. Being a screen I would assume air flow would be ok especially if I left space in front and on top.
The goal would be to lower the High Pressure PSI and thus current draw. Would the savings be rounding error in my utility bill or something more? (Units HP PSI is typically 275 @ 95 degree outside temp, 225 @ 80 degrees of so, condensers and sytems are clean with about 25 degree delta between intake (78 typ) and outtake (52-53 typ) indoor temps