
Installation guide
77
6-4. Connecting the Drainpipe
1) At the area where the branch pipe is connected to the horizontal pipe, use a T-
joint to make connections between the horizontal pipe & branch pipe.
2) A T-joint should be faced upward.
Precaution: T-joints should not be connected horizontally.
3) When you connect the horizontal pipe to the vertical pipe, do not make horizontal
connections.
Because the condensed water flowing from the upper area of the vertical pipe can back-flow into
the horizontal pipe.
No horizontal connection from the horizontal pipe to the vertical pipe
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