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Requirements:
• The drainpipe of the indoor unit should be heat-insulated.
• Heat insulation is necessary for the connection with the indoor unit. Improper heat insulation may cause condensation.
• The drainpipe with a down gradient of over 1/100 can’t be in the S shape or abnormal sounds could occur.
• The horizon length of the drainpipe should be within 20m. When using long pipes, they need to be supported every
1.5~2 m, so as to avoid an uneven installation.
• The central pipe should be connected according the following drawing.
• Ensure that no external force is applied on the connection of the drainpipes.
Installation Procedures
English
• For proper drainage, the drainpipes should be connected as instructed in the installation manual. Heat insulation is
necessary to prevent condensation. Improper connections may cause water leakage.
Attention
Heat insulation is necessary to prevent condensation.
Heat insulation should be as per the descriptions
The attached hose can be used to adjust the eccentricity and angle of the hard PVC tube.
• Stretch the hose so as to avoid distortion. The soft end of the hose should be positioned with a clamp.
• The hose should be placed in a horizontal fashion.
Heat insulation treatment:
• Wrap the connection between the clamp and the root segment of the indoor unit with the heat insulating materials, as
shown in the figure.
Piping materials and heat insulation
Hose
Piping Material Hard PVC tube VP31.5 mm (inner bore)
Heat Insulating
Material
Vesicant polythene thickness: over 7mm
support bracket
down gradient
over 1/100
s-shape elbow
as large as possible (about 10 cm)
down gradient
over 1/100
VP30
Heat
insulating
material
eccentricity adjustment (max.20 mm)
45°bending (max.)
hose clamp
hose
hose
indoor unit