Vacuuming and Refrigerant Charging
Vacuuming is necessary to eliminate all moisture and air from the system.
Vacuuming
After the system piping is properly connected, vacuum the air conditioner system to at least 500 microns Hg.
Charging
Before charging, the vacuum must be held at 500 microns Hg for at least 15 minutes. After charging, operate
the unit for 15 minutes, ensuring that refrigerant charges is of correct quantity by monitoring running
current and suction and liquid line pressures. Suction and discharge pipe pressures should be in the region
of 75 psig and 275 psig. After ensuring the system is correctly charged, remove flexible hose from charging
nipples and replace with caps.
Attention:
Outdoor unit is not factory pre-charged with refrigerant.
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Sakura Air-cooled Split Ducted Air Conditioner
