8
Installation & Owner's Manual
3.3 Air duct connection(HWHM-TDF300/3.5-H31
，
HWHM-TDF300/3.5E-H31)
Air outlet without canvas , air inlet connect to duct.
Air inlet and outlet with duct.
(A+B≤10m)
A≤10m
(A≤10m)
It is recommended to install unit by this way in the winter
where there is other heat source in the room.
Air outlet connect to canvas, air inlet without duct.
Duct Description
Fig.3-7
It is recommended to install unit by this way in summer
that could charge fresh air into room
Fig.3-8
Fig.3-6
2)
1)
3)
4)
Table 3-2
190mm
Air inlet
Air outlet
A
B
Air outlet
A
Air inlet
Air inlet
Air outlet
A
190mm
≤
2
≤2
≤10
≤10
≤2
≤2
≤3
≤3
Duct total
length (m)
Bent pressure
drop(Pa)
Bent’s qty.
Straight-line
pressure drop
(Pa/m)
Canvas Duct
Round
canvas duct
Rectangle
canvas duct
Other shaped
canvas duct
190
190X190
Refer to
above data
Dimension
(mm)
