Yes... But before Installing the New Components...Follow this Repair Clean-Out Regimen:
(1) Remove the Liquid and Vapor Lines from the A/C Compressor, Filter Drier, Condenser and Evaporator PRIOR to performing a Clean Out of the Lines.
(2) Purge the Lines using a Commercial HVAC System Flush using a Typical Valve Controlled Compressed Air Canister Unit via Compressed Air to deliver the Liquid under enough pressure to Flush out the system. If possible... Flush Out and Purge the Evaporator and the Condenser Unit ...Separately.
(3) In order to ensure the Removal of all the Old Dirt and Old Moisture Contaminated PAG Oil... Remove the In-Line Filter Orifice prior to Flushing and Purging and
THEN install a Brand New Filter-Orifice into the Liquid Line AFTER the Flush-Out and Purge Procedures are complete.
(4) NEVER install a Brand New A/C Compressor FIRST and THEN Flush Out or Purge any of those Lines... Otherwise,
All that will happen is the residue of Old Metal Particles and Dirt will wind up contaminating the insides of your Brand New Scroll Compressor!
(5) Use Dry Nitrogen @ 10-20 PSI on the Newly Repaired Sealed System
BEFORE introducing the New PAG OIL & "FREON" back inside of the system (2 Oz, in the Compressor, 2 Oz in the Accumulator, 2 Oz, in the Condenser). Check your A/C OEM Service Manual for anything more specific on weighing in the R-134A Charge and more precise amounts of PAG Oil
...OF A PARTICULAR NUMBER! Keep each Sub-System Component PLUGGED OFF to prevent the New PAG Oil from soaking up all the Local Atmospheric Moisture from right out of the Air...and
RUINING IT!
(6) Allow the Dry Nitrogen to
SIT under Low Pressure in the system long enough to absorb the residual Atmospheric Moisture in the Lines and everywhere else where Water can Flash Freeze over inside of the Evaporator Unit and BLOCK the Passage of the R-134A HCFC-CFC.
(7) Do NOT Skip the Dry Nitrogen De-Hydration Phase... as getting a truly "Fresh Start" on a Bone Dry System will ensure years of Top Notch Cooling from the Auto A/C System. Don't be impatient... it might take quite a while for extraneous Water Vapor to escape from inside of all of that Evaporator Capillary Piping.
(8) Use an Inexpensive 2.5 CFPM Vacuum Pump
(ALWAYS WITH FRESH, UN-USED VACUUM PUMP OIL.. .NOT PAG OIL) to Evacuate the entire A/C System for around 30 Minutes to One Hour or down to a reasonably Low Micron Level and then Test that the System Will Hold Vacuum afterwards with very little Vacuum Loss for around 10-15 Minutes. A Standard A/C Manifold Gauge should be used in all cases when pulling a Vacuum, followed by the R-134A Charging Activity.
TRUST THOSE GAUGES!
(9) Then Weigh in your R-134A Charge and allow the First Can to Normalize throughout the System before Starting the Engine. Once the Low Pressure Sensor Switch engages and allows the New A/C Compressor to "Kick-On" ...finish weighing in the remaining R-134A Charge.
(10) Avoid Over-Charging the System and use an appropriate 'Temperature vs. Pressure' Chart to *fiddle* the system and Tweak the Cold. Once the Accumulator has reached "Beer Can Cold" and the Internal A/C Vents set on HIGH are spewing out Cold Air at around 40 Degrees as per the Needle Thermometer stuck through those Vanes... Quit putting in any additional R-134A.
Better to add in a little LESS R-134A ...Than to put in TOO Much.