HA -10
HEATING, VENTILATION AND AIR CONDITIONING
SYSTEM EVACUATION
Use only service equipment that is U.L-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a(R-134a) from the air conditioning system.
CAUTION
-
Air conditioning refrigerant or lubricant vapor
can irritate your eyes, nose, or throat.
-
Be careful when connecting service equip-
ment.
-
Do not breathe refrigerant or vapor.
If accidental system discharge occurs, ventilate work area
before resuming service.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
1.
When an A/C System has been opened to the atmos-
phere, such as during installation or repair, it must be
evacuated using an R-134a refrigerant Recovery/Re-
cycling/Charging System. (If the system has been
open for several days, the receiver/dryer should be re-
placed, and the system should be evacuated for sev-
eral hours.)
2.
Connect an R-134a refrigerant Recovery/Recy-
cling/Charging System (A) to the high-pressure
service port (B) and the low-pressure service port (C)
as shown, following the equipment manufacturer’s
instructions.
C
B
A
EQKE004A
3.
If the low-pressure does not reach more than 93.3
kPa (700 mmHg, 27.6 in.Hg) in 10 minutes, there is
probably a leak in the system. Partially charge the
system, and check for leaks (see Leak Test.).
4.
Remove the low pressure valve from the low-pressure
service port.
SYSTEM CHARGING
Use only service equipment that is U.L-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a(R-134a) from the air conditioning system.
CAUTION
-
Air conditioning refrigerant or lubricant vapor
can irritate your eyes, nose, or throat.
-
Be careful when connecting service equip-
ment.
-
Do not breathe refrigerant or vapor.
If accidental system discharge occurs, ventilate work area
before resuming service.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
1.
Connect an R-134a refrigerant Recovery/Recy-
cling/Charging System (A) to the high-pressure
service port (B) as shown, following the equipment
manufacturer’s instructions.
C
B
A
EQKE004A
2.
Add the same amount of new refrigerant oil to system
that was removed during recovery. Use only specified
refrigerant oil. Charge the system with 29.98 ± 0.88
oz. (850 ± 25g) of R-134a refrigerant. Do not over-
charge the system the compressor will be damaged.