LG LS-K1862HL - Vacuum Pump

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. Evacuation
(All amount of refrigerant leaked)
• Procedure
(1) Connect the vacuum pump to the center hose of
charge set center hose
(2) Evacuation for approximately one hour.
- Confirm that the gauge needle has moved
toward -76cmHg (vacuum of 4 mmHg or less).
(3) Close the valve (Lo side) on the charge set, turn off
the vacuum pump, and confirm that the gauge nee-
dle does not move (approximately 5 minutes after
turning off the vacuum pump).
(4) Disconnect the charge hose from the vacuum
pump.
- Vacuum pump oil.
If the vacuum pump oil becomes dirty or depleted,
replenish as needed.
Lo
Open
Open
Vacuum pump
2-Way
valve
Outdoor unit
Liquid side
Indoor unit
Gas side
3-Way
valve
CLOSE
OPEN