Gree R410A Service Manual page 126

Super Free Match
Service Manual
matter how forcible it pushes, but there is no flowing water, thus resulting in abnormal water level. This will cause
flooding of the ceiling.
15) If the air flow of indoor unit is high, this might cause negative pressure and result in return suction of
outdoor air. Therefore, U-type water trap shall be designed on the drainage side of each indoor unit.
Install water trap as shown below;
Install one water trap for each unit.
Installation of water trap shall consider easy cleaning in the future.
16) Connection of drainage branch pipe to the standpipe or horizontal pipe of drainage main pipe.
The horizontal pipe cannot be connected to the vertical pipe at a same height. It can be connected in a manner
as shown below:
NO1: 3-way connection of drainage pipe joint
INSTALLATION 122