For this job, we replaced the 4 ton condensing unit that was previously defective and had a leak in it with a brand new system. Same model and manufacturer installed it correctly pull the vacuum to 300 µm pressurized it before doing the vacuum both of them Passed the test. charge system cooling by 27° Delta Recommend replacing evaporator coil and furnace, which is the next thing Richard would need to do
For this job, we replaced the metering device condensing unit and installed a R410a AC PRO 4 ton single stage system AC unit. Pressure held at 200 psi on the nitrogen pressure test and we pulled the vacuum down below 300 µm AC pro condensing unit new metering device system works great after the installation 5 years parts 10 years compressor 1 year labor