Instruction Manual ZHK
78/140
V07-21.0
6.3.1 Standard siphons
A space-saving design of the necessary siphon height can be completed by EUROCLIMA on re-
quest. Contact your sales representative for further detailed information.
NOTICE!
The following conditions are essential for correct operation:
-
At each drain, a siphon must be connected.
-
Several drains should not be connected to one siphon.
-
The water from the siphon must run in a funnel.
-
Before starting, fill the siphon with water.
-
In the case of outdoor AHUs, an antifreeze mechanism has to be installed
and provided on site.
The heights H1, H2 and H3 can be determined from the maximum negative pressure (p) and maxi-
mum pressure (p) in the section of the siphon or be determined by the information on the technical
data sheet as follows:
Total pressure
p
ges
= 1196 Pa
Dynamic pressure
p
dyn
= 83 Pa
Total static pressure p
stat
= p
ges
–
p
dyn
= 1113 Pa
1 mmWS = 9,81 Pa
H1 > 1113/9,81 = 114 mm + 15 mm (Safety) = about 130 mm
H2 = 65 mm
Siphon on suction side (in direction of airflow before the fan), see Figure 174.
H1 (mm) > p (mm WS)
H2 (mm) > p/2 (mm WS)
Figure 174:
Siphon on suction side
Siphon on pressure side (in direction of airflow after the fan), see Figure 175.
H3 (mm) > p (mm WS)
H4 (mm)
0
Figure 175:
Siphon on pressure side
Содержание ZHK
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