1• Refill an air-conditioner with refrigerant when refrigerant has been leaked at installing or using2. Turn the 3-way valve clockwise to close,connect the pressure gauge(low pressure side) to theservice valve, and open the 3-way valve again.1. Purge air(for new installation only).4. Set the unit to cool operation mode.6. Open the refrigerant tank and fill with refrigerant untilthe rated pressure is reached.* It is recommended not to pour the refrigerant in tooquickly, but gradually while operating a pressure valve.5. Check the pressure indicated by the pressure gauge(lowpressure side).* Standard pressure is should be 64~78psi in a regular,high operation mode.7. Stop operation of the air conditioner.8. Close the 3-way valve, disconnect the pressure gauge,and open the 3-way valve again.9. Close the cap of each valve.3. Connect the tank to refill with RefrigerantR-22Suspension hookHighpressuregaugeHandwheelFinger tightfittingsConnected tohigh pressuresideCharginglineFor mountingother and ofhose whennot in useCompoundgauge1. Installation1-1 Refrigerant Refill Procedure