SERVICE PRECAUTIONS
Installation Place
• Must be well ventilated.
• Must be 20 cubic meter or larger.
• Must be no-smoking area.
• No ignitable factors must be present.
Make sure before Servicing
• Confirm the refrigerant by checking Name Plate and the label on the compressor, after opening
the back cover.
• If the refrigerant is R600a, you must not weld or apply a heat source.
Utilities
• Refrigerant Cylinder (MAX NET 300g).
• Manometer
• Vacuum pump (600 l/min)
• Piercing Clamp
• Quick coupler
• Hoses (5m – 1EA, 1m – 3EA)
• Lokring
• Potable leakage detector (3g/ year)
• Nitrogen Cylinder (for leakage test)
• Concentration gauge
Air Recharging in Compressor
Before refilling the refrigerant, you must perform the test according to Troubleshooting Chart.
When the defects are found, you must discharge the residual refrigerant (R600a) in the outdoor.
For discharging the refrigerant R600a, break the narrow portion of tube extension by hand
or with a pipe cutter as shown in Figure 1. Leave it for 30min in outside to stabilize the pressure
with ambient. Then, check the pressure by piercing the dryer part with piercing pliers.
If the refrigerant is not completely discharged, let the refrigerator
alone for more 30mins in outside.
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