Haier AB052MCERA Manuel D'instructions page 22

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.
Piping Material
Heat Insulating Material
support bracket
Hard PVC tube VP31.5mm(inner bore)
Vesicant polythene thickness: over 7mm
Attention
s-shape elbow
14
as big as possible (about 10 CM)
VP30
down gradient
over 1/100