AUX ALCA-HA Series Installation And Owner's Manual page 86

Drainage pipe installation
1. The drain pipe should be properly insulated to prevent the generation of
condensation. It should be installed with a downward gradient (1/100-150).
2. The unit has drain pump which will lift up to 700 mm for model 50 and 1200 mm for
models 70/100/120/140/160. However after the pump stops the water still in the pipe
will drain back and may overflow the drain tray causing a water leak.
3. When draining multiple units into a common drain line, tHs common drain should be
installed about 100mmbelow each units drain outlet, as shown in the drawing.
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