Zell AC1800, Operation Manual

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6.2 Installing in the bottle for new oil
Unscrew the refrigerant oil bottle, put about 150 ml new oil in and screw it back
to the device.
6.3 Filling up the working tank
When the Air-Con Service Station is started for the first time, the internal
refrigerant container is suggested be filled gas with at least 6 kg from an
external refrigerant cylinder.
Also note the instructions on the refrigerant bottle.
The current refrigerant quantity is shown in the standby mode.
■ Refrigerant bottles without a rising pipe: These refrigerant bottles have
one connection. When filling the Air-Con Service Station, the connection
port must be at the bottom (turn the bottle upside down).