Gorenje TC80Z Mode D'emploi page 15

Air inlet and outlet pipeline system
When connecting the sanitary heat pump to an existing pipeline system, we use the basic
pipe elements that we connect into a pipeline system for air inlet and outlet. The air
pipeline should consist of round pipes with an inner diameter of Ø125 mm, or rectangular
pipes with a cross section of □150x70 mm.
a.)
d.)
g.)
Fig. 3: Schematic demonstration of the basic elements in a pipeline system for inlet
and outlet of air
Calculation of pressure drops
The values of total static pressure drop can be calculated by adding up the losses from
individual elements built into the air pipeline system and the internal static pressure. The
values of static pressure drops of individual elements (static pressure drops of elements
relate to the internal diameter Ø125mm or □150x70mm) are shown in Table no. 2.
Table no. 2: Types of elements and corresponding pressure loss values
Type of element
a.) Spiral ribbed pipe
b.) Rectangular pipe □150x70 mm
c.) Rectangular elbow - horizontal 90°
d.) Elbow 90°
e.) Angular reducer Ø125 to □150x70
f.) Rectangular elbow - vertical 90°
g.) Elbow 45°
h.) Reducer Ø125 to □150x70
i.) Flexible tube
j.) Air intake grid
b.)
e.)
h.)
Value of static pressure loss
Diagram 2
Diagram 2 (according to DN 125)
5 Pa
4 Pa
5 Pa
5 Pa
3 Pa
3 Pa
Diagram 2
25 Pa
c.)
f.)
i.)
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