22
6.6 Re-air purging (Re-installation)
Procedure:
1. Confirm that both the 2-way and 3-way valves are set to the closed position.
2. Connect the charge set and a charging cylinder to the service port of the 3-way valve.
Leave the valve on the charging cylinder closed.
3. Air purging.
Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on
the 2-way valve approximately 45’ for 3 seconds then closing it for 1 minute; repeat 3 times.
After purging the air, use a torque wrench to tighten the flare nut to on the 2-way valve.
4. Check the gas leakage.
Check the flare connections for gas leakage.
5. Discharge the refrigerant.
Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicates 0.3 to 0.5
Mpa.
6. Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open
position.
Содержание 9V SERIES
Страница 1: ...9VSAP 1010 A SERVICE MANUAL MIDEA AIRCONDITIONER On Off SPLIT WALL MOUNTED TYPE 9V SERIES 9220 9221...
Страница 13: ...11 4 Refrigerant Cycle Diagram Cooling only Heat pump mode...
Страница 14: ...12 5 Wiring Diagram 5 1 Indoor Unit Cooling only...
Страница 15: ...13 Cooling Heating...
Страница 16: ...14 5 2 Outdoor Unit Smaller than 18K model Cooling only...
Страница 17: ...15 Cooling Heating...
Страница 18: ...16 For 18 K model Cooling only...
Страница 19: ...17 Cooling Heating...