Lincoln Aviator: Climate Control System - General Information / General Procedures - Condenser Core Leak Check - Vehicles With: R1234YF Refrigerant
Special Tool(s) /
General Equipment
Air Conditioning Service Unit |
Air Conditioning Adaptor Kit |
Inspection
-
Recover the refrigerant. Refer to Air Conditioning (A/C)
System Recovery, Evacuation and Charging procedure in Group 412.
-
Disconnect the condenser from the A/C system. Refer to the appropriate section in Group 412 for the procedure.
-
Use the correct adapters with the A/C Service Unit to test the condenser.
-
219-00082 ACF-3000 33PC Adapter Kit - Revised 1st released 44pc kit.
-
219-00083 A/C Flushing Adapter Kit 2 of 3 (Previously "Supplement A", 2nd released kit).
-
219-00084 A/C Flushing Adapter Kit 3 of 3.
Use the General Equipment: Air Conditioning Adaptor Kit
-
NOTE:
The automatic shut-off valves on some hoses do not
open when connected to the fittings. If available, use hoses without
shut-off valves. If hoses with shut-off valves are used, make sure the
valve opens when attached to the adapter fittings. The test is not valid
if the shut-off valve does not open.
Connect the hoses from the A/C Service Unit to the adapter fittings on the condenser.
-
199-FFX1234 Flo Dynamics R1234yf A/C Refrigerant Management Center
Use the General Equipment: Air Conditioning Service Unit
-
Open both valves and start the vacuum. Allow the A/C
Service Unit to vacuum for a minimum of 45 minutes after the low
pressure gauge indicates 101 kPa (30 in-Hg). The 45-minute evacuation is
necessary to remove any refrigerant from oil left in the condenser. If
the refrigerant is not completely removed from the oil, outgassing will
degrade the vacuum and appear as a refrigerant leak.
-
If the low pressure gauge reading will not drop to 101 kPa (30 in-Hg) when the valves are open and the A/C
Service Unit is operating, close the valves and observe the low
pressure reading. If the pressure rises rapidly to zero, a large leak is
indicated. Recheck the adapter fitting connections before installing a
new condenser.
-
After evacuating for 45 minutes, close the valves and
stop the service unit. Observe the low pressure gauge; it should remain
at the 101 kPa (30 in-Hg) mark.
-
If the low pressure gauge reading rises 34 or more
kPa (10 or more in-Hg) of vacuum from the 101 kPa (30 in-Hg) position in
10 minutes, a leak is indicated.
-
If a very small leak is suspected, wait 30 minutes and observe the vacuum gauge.
-
If a small amount of vacuum is lost, operate the
service unit with the valves open for an additional 30 minutes to remove
any remaining refrigerant from the oil in the condenser. Then recheck
for loss of vacuum.
-
If a very small leak is suspected, allow the system
to sit overnight with vacuum applied and check for vacuum loss.
-
If the condenser leaks, as verified by the above
procedure, install a new condenser. Refer to Condenser procedure in
Group 412.
Special Tool(s) /
General Equipment
Air Conditioning Service Unit
Air Conditioning Adaptor Kit
Inspection
Recover the refrigerant...
Special Tool(s) /
General Equipment
Electronic Leak Detector
Inspection
NOTE:
Use a Rotunda-approved Electronic Leak Detector for R-134a refrigerant SAE Certified to J2791...
Other information:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
This procedure is for the sliding glass panel only.
Place the roof opening panel shield to the fully OPEN position.
On both sides...
WARNING: Driving while distracted
can result in loss of vehicle control, crash
and injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the safe
operation of your vehicle...