4.5 Installation of the Drain Hose
4.5.1 Installation of Drain Piping
NOTICE!
Install the drain hose in accordance with the instructions in this installation manual and keep the
area warm enough to prevent condensation. Problems with the piping may lead to water leaks.
1. Keep piping as short as possible and install the drain hose with downward gradient (1/50 to
1/100) no risers or traps are used for the hose.(Fig. 4.21)
2. Be sure there is no crack or leak in the drain hose to avoid the formation of air pockets.(Fig.
4.21)
3. When the hose is long, install supports.(Fig. 4.22)
4. Always use a drain hose which has been insulated properly.
Fig. 4.21
Fig. 4.22 Fig. 4.23
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