HTW PREMIUM R32 Manuel De L'utilisateur Et D'installation page 54

Installation Instructions
Installation of the Drain Hose
a. Installation of Drain Piping
CAUTION!
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. Install the drain hose with downward gradient (1/50 to 1/100) and no risers or traps are used
for the hose.(Fig.15)
2. Be sure there is no crack or leak on the drain hose to avoid the formation of air pocket. (Fig.15)
3. When the hose is long, install supporters.(Fig.16)
4. Always use the drain hose which has been insulated properly.
5. Use a suitable drain hose, and see Table 3 for its size.
6. There is a drain port on both the left and right sides. Select the drain port to match the local
conditions.(Fig.17)
7. When the unit is shipped from the factory, the drain port is defaulted to be the one on the left
side (electric box side), the port on right side has been plugged.
Fig.15
Fig.16
18
Fig.17