700870,700875,700877
SERVICE MANUAL
54
page
Portable Air Condi oners
Refrigerant Charging Work
Refrigerant charging
1) Remove the charging hose from the vacu-
um pump, and connect it to the refriger-
ant cylinder (R-410A).
2)
Loosen the nut on the gauge manifold
side of the charging hose. Open the valve
of the charging hose. Open the valve of
the refrigerant cylinder. A er air purging,
ghten this nut and close the valve of the
refrigerant cylinder.
3) Securely place the refrigerant cylinder on a scale with a weighing capacity of
70 lb (30 kg) that is graduated by 0.2 oz (5 g).
4) Open the high pressure valve of the gauge manifold and the valve of the re-
frigerant cylinder. Charge the system with refrigerant to the specifi ed amount.
Standard Amount of Refrigerant:
- 700870: Toshiba 15.9 oz (451 g), LG 15.5 oz (400 g)
- 700875: 42.3 oz (1200 g)
- 700877: 51.8 oz (1470 g)
5) Close the high pressure valve of the gauge manifold and the valve of the
refrigerant cylinder.
•Do not a empt any repair on a charged system.
• Before checking for gas leaks, fully confi rm that there is nothing fl ammable
in the area to cause an explosion or fi re. Contact of refrigerant with an
open fi re generates toxic gas.
WARNING
WARNING
CAUTION
The amount of refrigerant charged has a great ef-
fect on the cooling capacity of the unit. Charge to the
specifi ed amount,always observing the scale gradua-
ons while charging.
Refrigerant
Cylinder R-410A
Low Pressure
Side Tube
Low Pressure Valve
Valve of
Refrigerant
Cylinder
