F53 AC high side pressure (2008 - 134a) at 90F
Can't find it in any of my manuals. websites suggest 250 psi but wondered if that's correct. Other sites say 134a is very sensitive to the right pressure.
Forum Discussion
You never charge a system based on low side. IF you charge you watch the hi side with the lo side as a help. Doug
A/C System Operating Pressures for 134a systems
Ambient Air Temp (F) Entering Condenser Suction Pressure (PSIG) @ Evaporator Outlet Discharge Pressure (PSIG) @ Compressor Outlet
50-----5-15--- 75-125
60---- 5-15--- 100-150
70---- 10-20---125-175
80---- 10-20-- 150-225
90---- 15-25-- 175-250
100--- 15-25---200-275
110--- 15-30-- 225-325
A/C System Operating Pressures for 134a systems
Ambient Air Temp (F) Entering Condenser Suction Pressure (PSIG) @ Evaporator Outlet Discharge Pressure (PSIG) @ Compressor Outlet
50-----5-15--- 75-125
60---- 5-15--- 100-150
70---- 10-20---125-175
80---- 10-20-- 150-225
90---- 15-25-- 175-250
100--- 15-25---200-275
110--- 15-30-- 225-325
