Hyundai Kona: Air Conditioning System / Repair procedures
| Refrigerant System Service Basics (R-134a) |
Refrigerant Recovery
Use only service equipment that is U.L-listed and is certified to meet the
requirements of SAE J2210 to remove HFC-134a(R-134a) from the air conditioning
system.
|
If accidental system discharge occurs, ventilate work area before resume
of service.
Additional health and safety information may be obtained from the refrigerant
and lubricant manufacturers.
| 1. |
Connect an R-134a refrigerant
Recovery / Recycling / Charging System to the high-pressure service
port (B) and the low-pressure service port (A) as shown, following
the equipment manufacturer's instructions.
|
| 2. |
Measure the amount of refrigerant oil removed from the A/C system
after the recovery process is completed. Be sure to install the
same amount of new refrigerant oil back into the A/C system before
charging.
|
System Evacuation
Use only service equipment that is U.L-listed and is certified to meet the
requirements of SAE J2210 to remove HFC-134a(R-134a) from the air conditioning
system.
|
If accidental system discharge occurs, ventilate work area before resume
of 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 atmosphere, such as during
installation or repair, it must be evacuated using an R-134a refrigerant
Recovery / Recycling / Charging System. (If the system has been
open for several days, the receiver / dryer should be replaced,
and the system should be evacuated for several hours.)
|
| 2. |
Connect an R-134a refrigerant
Recovery / Recycling / Charging System to the high-pressure service
port and the low-pressure service port as shown, following the equipment
manufacturer's instructions.
|
| 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 Refrigerant
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 certified to meet the
requirements of SAE J2210 to remove HFC-134a(R-134a) from the air conditioning
system.
|
If accidental system discharge occurs, ventilate work area before resume
of service.
Additional health and safety information may be obtained from the refrigerant
and lubricant manufacturers.
| 1. |
Connect an R-134a refrigerant
Recovery / Recycling / Charging System to the high-pressure service
port as shown, following the equipment manufacturer's instructions.
|
| 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 of R-134a refrigerant. Do not overcharge the system
the compressor will be damaged.
|
Refrigerant Leak Test
Always conduct a leak test with an electronic leak detector whenever leakage
or refrigerant is suspected and when conducting service operations which
are accompanied by disassembly or loosening or connection fittings.
In order to use the leak detector properly, read the manual supplied
by the manufacturer.
|
If a gas leak is detected, proceed as follows:
| 1. |
Check the torque on the connection fittings and, if too loose, tighten
to the proper torque. Check for gas leakage with a leak detector
(A).
|
| 2. |
If leakage continues even after the fitting has been tightened,
discharge the refrigerant from the system, disconnect the fittings,
and check their seating faces for damage. Always replace, even if
the damage is slight.
|
| 3. |
Check the compressor oil and add oil if required.
|
| 4. |
Charge the system and recheck for gas leaks. If no leaks are found,
evacuate and charge the system again.
|
| Refrigerant System Service Basics (R-1234yf) |
Refrigerant Identification
| • |
Do not mix HFO-1234yf (R-1234yf) in the vehicle with other refrigerant,
such as R-12, R-1234yf and etc.
|
| • |
Use only service equipment that is U.L-listed and is certified to
meet the requirements of SAE standards to recover and recycle R-1234yf
from the air conditioning system. Do not use service equipment for
the other refrigerant, such as R-12, R-1234yf and etc.
|
| • |
Verify what refrigerant is in the system if there is concern that
the system has been tampered with in any way and check the type
and quantity of refrigerant that shall be in the A/C system and
potential issues arising from accidental or intentional mixing of
refrigerants.
|
| • |
Using an SAE certified refrigerant identification device is recommended
to prevent improper recovery and the resulting further spread of
contaminated refrigerant, which could potentially damage other A/C
systems and service equipment. Contaminated refrigerant (blend of
more than one refrigerant or non-system refrigerant) in recovery
/ recycling equipment could lead to the potential contamination
of more refrigerant.
|
| • |
Certain types of electronic leak detection devices (heated diode
or corona discharge) as well as motors, switches, and controls on
recovery and recycling machines, could generate sparks that could
serve as ignition sources in the presence of refrigerants classified
as flammable (A2 or A3) by ASHRAE standard 34 2006.
|
| • |
It is possible that the mixing of refrigerants in a A/C system can
result in higher-than-expected system pressures, system and component
damage, diagnostic errors and/or other potential hazards to people
and environment.
|
| • |
In case other refrigerant is mixed, recover the contaminated refrigerant
in the A/C system and dispose it in accordance with all applicable
national, regional or local regulations. Clean inside the A/C system
using the specialized detergent and recharge new refrigerant.
|
Refrigerant Recovery
Use only service equipment that is U.L-listed and is certified to meet the
requirements of SAE standards to remove HFO-1234yf (R-1234yf) from the air
conditioning system.
|
If accidental system discharge occurs, ventilate work area before resume
of service.
Additional health and safety information may be obtained from the refrigerant
and lubricant manufacturers.
| 1. |
Connect an R-1234yf refrigerant
Recovery / Recycling / Charging System to the high-pressure service
port (B) and the low-pressure service port (A) as shown, following
the equipment manufacturer's instructions.
|
| 2. |
Measure the amount of refrigerant oil removed from the A/C system
after the recovery process is completed. Be sure to install the
same amount of new refrigerant oil back into the A/C system before
charging.
|
System Evacuation
Use only service equipment that is U.L-listed and is certified to meet the
requirements of SAE standards to remove HFO-1234yf (R-1234yf) from the air
conditioning system.
|
If accidental system discharge occurs, ventilate work area before resume
of 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 atmosphere, such as during
installation or repair, it must be evacuated using an R-1234yf refrigerant
Recovery / Recycling / Charging System. (If the system has been
open for several days, the receiver / dryer should be replaced,
and the system should be evacuated for several hours.)
|
| 2. |
Connect an R-1234yf refrigerant
Recovery / Recycling / Charging System to the high-pressure service
port and the low-pressure service port as shown, following the equipment
manufacturer's instructions.
|
| 3. |
If the low-pressure does not reach more than 87.7 kPa (658 mmHg,
25.9 in.Hg) in 5 minutes, there is probably a leak in the system.
Partially charge the system, and check for leaks (see "Refrigerant
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 certified to meet the
requirements of SAE standards to remove HFO-1234yf (R-1234yf) from the air
conditioning system.
|
If accidental system discharge occurs, ventilate work area before resume
of service.
Additional health and safety information may be obtained from the refrigerant
and lubricant manufacturers.
| 1. |
Connect an R-1234yf refrigerant
Recovery / Recycling / Charging System to the high-pressure service
port as shown, following the equipment manufacturer's instructions.
|
| 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 of R-1234yf refrigerant. Do not overcharge the system
the compressor will be damaged.
|
Refrigerant Leak Test
Always conduct a leak test with an electronic leak detector whenever leakage
or refrigerant is suspected and when conducting service operations which
are accompanied by disassembly or loosening or connection fittings.
|
|
If a gas leak is detected, proceed as follows :
| 1. |
Check the torque on the connection fittings and, if too loose, tighten
to the proper torque. Check for gas leakage with a leak detector
(A).
|
| 2. |
If leakage continues even after the fitting has been tightened,
discharge the refrigerant from the system, disconnect the fittings,
and check their seating faces for damage. Always replace, even if
the damage is slight.
|
| 3. |
Check the compressor oil and add oil if required.
|
| 4. |
Charge the system and recheck for gas leaks. If no leaks are found,
evacuate and charge the system again.
|
Description and operation
Refrigeration Cycle
...
Components and components location
Component Location Index
Engine Room
1. Expansion valve
2. Service port (Low pressure)
3. Service port (High pressure)
4. A/C Pressure transdu ...
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