LG W09TI Manual De Instalación página 27

CHECK AFTER INSTALLATION
Check-Up for Gas Leakage
Gas leakage can damage the appliance's
performance. Check for gas leakage by applying
soapy water on the outdoor unit pipe connected to
the indoor unit pipe's joint.
• If there is gas leakage, bubbling will occur.
• In case of bubbling, check the cause of the gas
leakage.
NOTE
• Electronic leak detectors shall be used to detect
flammable refrigerants, but the sensitivity may
not be adequate, or may need re-calibration.
(Detection equipment shall be calibrated in a
refrigerant-free area.)
• Leak detection equipment shall be set at a
percentage of the LFL (Lower flammable limit)
of the refrigerant and shall be calibrated to
the refrigerant employed and the appropriate
percentage of gas (25 % maximum) is confirmed.
• Leak detection fluids are suitable for use with most
refrigerants but the use of detergents containing
chlorine shall be avoided as the chlorine may
react with the refrigerant and corrode the copper
pipe-work.
• If a leak is suspected, all naked flames shall be
removed/extinguished.
• If a leakage of refrigerant is found which requires
brazing, all of the refrigerant shall be recovered
from the system, or isolated (by means of shut off
valves) in a part of the system remote from the
leak.
• Oxygen free nitrogen (OFN) shall be purged
through the system both before and during the
brazing process.
Checking the Performance
After operating the appliance for 15-18 minutes,
check the list below;
1
Check the pressure of the gas service valve.
Outdoor
Temperature
20 °C (68 °F)~
35 °C (95 °F)
35 °C (95 °F)~
40 °C (104 °F)
40 °C (104 °F)~
45 °C (113 °F)
45 °C (113 °F)~
48 °C (118 °F)
NOTE
• If the actual pressure is higher than shown, the
refrigerant system is most likely overcharged, and
charge should be removed. If the actual pressure
are lower than shown, the refrigerant system is
most likely undercharged, and charge should be
added.
2
Measure the temperature of the inlet and the
outlet of the indoor unit.
• A difference of eight degrees Celsius between
the inlet and the outlet indicates that the
cooling performance is in normal.
3
Separate the low-pressure hose of the manifold
gauge from the outdoor unit.
4
Close the core valve cap of the gas service
valve.
• Tighten the core valve cap securely with an
adjustable wrench.
EN
Pressure of Service
Valve (Gas)
8.4~9.5 kgf/cm G
2
(120~135 psi)
9.5~10.5 kgf/cm G
2
(135~150 psi)
10.5~11.6 kgf/cm G
2
(150~165 psi)
11.6~12.3 kgf/cm G
2
(165~175 psi)
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