GIA OEM3 Manual De Usuario E Instalacion página 60

• Exhaust
⚫ Make sure that all the tubes of indoor and outdoor unit are connecting well.
Take off valve bonnet from two-way and three-way valves by spanner; connect vacuum pump and compound valve to
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the service valve bonnet.
⚫ Open the low-pressure switch of compound valve, and run vacuum pump until units' internal pressure at 10 mmHg.
After pump vacuum, close the low-pressure switch of compound valve, and then close vacuum 。
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pump. Turn anti-clockwise 90 Spool of narrow pipe service valve by hexagon spanner, tightly with clockwise turning
after stopping for 10 seconds.
⚫ Check with soap water or leak detector whether there is leakage at all connections of indoor and outdoor unit. Open
wide and narrow pipe service valves by hexagon spanner for running.
⚫ Take off the connection pipeline of wide pipe service valve.
⚫ Screw tightly the entire valve bonnet by torque spanner.
Check with soap water or leak detector whether there are leakage at all indoor and outdoors' connections.
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Put the valve bonnet and lid back to position.
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• Gas leakage inspection
After the pipeline connection is done,use a leakage inspection device or soap to carefully check if there is any leakage at
the joints. This is an important step to ensure the quality of installation.If refrigerant leaks,ventilate the area
immediately.Toxic gas may be produced if refrigerant gas comes into contact with fire.Never directly touch any
accidentally leaking refrigerant.This could result in severe wounds caused by frostbite.
INSTALLATION MANUAL
Indoor Unit
Outdoor Unit
Manometer
Compound Valve
Vacuum Pump
Fig 15
26