Airwell CVQA-025N-01M22 Manuel D'utilisation Et D'installation page 19

Installation Procedures
• For proper drainage, the drainpipes should be connected according to the installation manual. Heat preservation
should be performed as to prevent condensing. Improper connections may cause the water leakage.
Requirements:
• The drainpipe of the indoor unit should be heat-insulated.
• Heat insulation should be treated for the connection with the indoor unit. Improper heat insulation may cause
condensing.
• The drainpipe with the down gradient of over 1/100 can't be in the S shape, or abnormal sound can be caused.
• The horizon length of the drainpipe should be kept with 20m. Under the condition of long pipes, supports can be
provided every 1.5~2m as to avoid unevenness.
• The central piping should be connected according the following drawing.
• Take care not to apply external force on the connection of the drainpipes.
1.5m~2m
heat
down gradient
insulating
over 1/100
material
Piping Materials & Heat Insulating Materials
As to prevent condensation, heat insulating treatment should be
performed. The heat insulating treatment for piping should be done
respectively.
Hose
The attached hoses can be used to adjust the eccentricity and angle of the hard PVC tube.
• Stretch the hose directly to make connections as to avoid distortion. The soft end of the hose should be positioned with
a clamp.
• The hose should be used in the horizon direction.
eccentricity adjustment (max.20mm)
Heat Insulating Treatment:
• Wrap the connection between the clamp and the root segment of the indoor unit without any gap with heat insulating
materials as shown in the drawing
support bracket
45°bending (max.)
Attention
s-shape
elbow
Piping Material
Heat Insulating
Material
11
as big as possible (about 10 CM)
VP30
down gradient
over 1/100
Hard PVC tube VP31.5mm
(inner bore)
Vesicant polythene thickness:
over 7mm
hose clamp
hose
hose
indoor unit