22
SERVICE PRECAUTIONS
Connect the charging hose (that is connected to the refrigerant (R600a) cylinder) to the
Schrader valve installed on the service tube. Then, charge the refrigerant (R600a) by
controlling the Throttle valve. When you do so, do not fully open the Throttle valve
because it may make damage to the compressor. Gradually charge the refrigerant
(R600a) by changing open and close the Throttle Valve (5g at each time). The charging
hose must use a one-way
valve to prevent the refrigerant re-fluency. Close the Schrader valve cap after the
refrigerant (R600a) is completely recharged.
After you completely recharge the refrigerant (R600a), perform the leakage test by
using a portable leakage detector or soapy water. Test the low pressure (suction) parts
in compressor off time and high pressure parts in compressor on time. If the leakages
are found, restart from the refrigerant (R600a) discharging process and repairs defects
of leaks.
After the leakage test, check the temperature of each parts of the cycle. Check with
hands if the CONDENSER and the case (HOTLINE pipe) that is contacted to the door
gasket are warm. Confirm that frost is uniform distributed on the surface of the
EVAPORATOR.
Air Recharging in Compressor
TROUBLESHOOTING
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