Connecting The Drain Pan; Other Installation Advices - aldes DFE Série Manuel D'installation Et De Maintenance

2.2 Connecting the drain pan

• If the DFE unit is installed indoors:
Before starting, control the following points:
- If the drain pan is watertight;
- The connection between the drain pan and the evacuation pipe is
airtight;
- The height of the siphon is at least of 120 mm;
- The pressure difference between outside and inside the unit cannot
exceed 350 Pa;
- Check for the presence of a ventilation downstream of the siphon;
- The slope of the evacuation pipes is at least 1 cm/m;
- The siphon is accessible to allow cleaning
• If the DFE is installed outdoors:
The siphon delivered with DFE for outdoor application is a special
siphon with a membrane. It is thus not necessary to fit it to a drainage
pipe as the water can directly drop on the ground. The membrane
integrated into this type of siphon creates the air tightness.

2.3 Other installation advices

Make sure the unit is installed on a flat surface
Leave sufficient access to the unit. Make sure it is possible to access to all the components for maintenance:
fans, controls and filters. We advise at least 50 cm on each sides of the unit,
Special care has been taken to deliver an airtight unit. Make sure the ductwork is also very airtight, especially at
the connections with the unit on the supply air side.
If the unit is installed outdoors, take the dominating winds into account when orientating the unit. Try to protect
the air inlet as much as possible from storm winds and rain.
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Indoor siphon
Outdoor siphon