58
Caution:
• Improper tightening of bolts would lead to the faults shown in the following gure.
• After tightening the bolts, if there is a clearance between the ceiling and the trim panel, please readjust the height
of the indoor unit.
As to prevent condensation, heat insulating treatment should be performed. The heat insulating treatment for piping
should be done respectively.
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.
claws
snap
right stepper motor
left stepper motor
function indicator
Air leakage
Ceiling
pollution
Water condensate, water dripping
Clearance is not allowed
Drainpipes
Piping Materials & Heat Insulating Materials
1.5m~2m
support bracket
heat
insulating
material
down gradient
over 1/100
s-shape
elbow
as big as possible (about 10 CM)
down gradient
over 1/100
VP30
• The hose should be used in the horizon direction.
45°bending (max.)
45°
eccentricity adjustment (max.20mm)
20
indoor unit
hose
hose
hose clamp
hose clamp
Piping Material Hard PVC tube VP31.5mm (inner bore)
Heat Insulating Material Vesicant polythene thickness: over 7mm
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