Daewoo MUSSO Service Manual page 1286

7B/C-10 MANUAL & SEMIAUTO-HVAC
REFRIGERANT CHARGING
Installation of Manifold Gauge
1. Close both high/low pressure hand valve of gauge before
installation of gauge to the charging valve.
2. Connect the low pressure hose of the gauge to the low
pressure charging valve and the high pressure hose of the
gauge to high pressure charging valve. Tighten the hose
nuts by hand.
Discharging of Refrigerant
1. Connect the manifold gauge to the charging valve.
2. Place the free end of center hose in a shop towel.
3. Slowly open the high pressure hand valve and discharge
refrigerant.
Notice
If refrigerant is allowed to escape too fast, compressor oil
will be drawn out of the system.
MAINTENANCE AND REPAIR