Operation Manual

7.2. Duct connection ways
Figure 7.2.-1.
Figure 7.2.-2.
Air inlet and air outlet are connected to air duct. A + B ≤ 10 m
 Duct description
Duct size Dimensions
(mm)
Straight-line
pressure drop
(PA / m)
Straight-line
length
(m)
Bent pressure
drop
(PA / m)
Bent
quantity
Round duct
∅
190
≤
2
≤
10
≤
2
≤
5
Rectangle duct 190x190
≤
2
≤
10
≤
2
≤
5
Remark: It is better to connect the air duct to air outlet than to air inlet.
Remark: Due to operation with air duct, part of air flow and heat pump capacity is lost in the system.
EN 29
Air outlet Air inlet
Air outlet
Air inlet