Carrier XCT 7 40VU005~018C-7S-QEE Installation And Owner's Manual page 18

Installation Procedures
• 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.
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.
Heat down gradient
insulating over 1/100
material
Piping materials and heat insulation
Heat insulation is necessary to prevent condensation.
Heat insulation should be as per the descriptions
Hose
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.
eccentricity adjustment (max.20 mm)
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.
support bracket
45°bending (max.)
Attention
s-shape elbow
Piping Material Hard PVC tube VP31.5 mm (inner bore)
Heat Insulating Vesicant polythene thickness: over 7mm
Material
18
as large as possible (about 10 cm)
down gradient VP30
over 1/100
hose clamp
hose
hose
indoor unit