DC Inverter U-match Series Duct Type Unit
(4) Drain branch should be connected to the vertical or horizontal part of the
main drain pipe.
(5) Horizontal pipe should not be connected to the vertical pipe that is on the
same level. It should be connected in the following way:
1) Attach the 3-way connection of the drainage pipe joint.
2) Attach the drain elbow.
3) Attach the horizontal pipe.
3.2.6.4 Check Drainage
After piping work is finished, check if drainage flows smoothly.
As shown in the figure, add approximately 1liter of water slowly into the drain
pan and check drainage flow during COOL running.
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