English-49
INST
ALL
ATION
05
Installing and connecting the drain hose of the outdoor unit
While heating, ice may accumulate. During the process of defrosting, check if condensation draining is adequate. For adequate
draining, do the following.
1. Insert the drain plug into the drain hole on the underside of the outdoor unit.
2. Connect a drain hose to the drain plug.
3. Ensure that condensation draining is adequate.
Frame
Ground
Estimated
snow fall
Snow-proof hood
Bottom surface of outdoor unit
Drain hose
Drain hole
Drain plug
Drain hole
Drain plug
• To avoid drain plug from contacting the ground, secure gap between the
ground and the bottom surface of the outdoor unit.
• In areas with heavy snow fall, piled snow could block the air intake.
To avoid this incident, install a frame that is higher than estimated snow
fall. In addition, install a snow-proof hood to avoid snow from piling on the
outdoor unit.
The outdoor unit is loaded with sufficient R-410A refrigerant. Do not vent R-410A into atmosphere: it is a fluorinated
greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975.
You should evacuate the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor.
It may cause reduction of cooling capacity and malfunction. Use Vacuum Pump as seen in the picture.
• When installing, make sure there is no leakage. When recovering the refrigerant, ground the compressor first
before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works
with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle
abnormally high. It may cause explosion and injury.
Evacuating the connected pipes
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