Komfovent 1300 U, Руководство по установке

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UAB KOMFOVENT we reserve the right to make changes without prior notice
RHP STANDARD_21-04
3.5. Connection of a Condensate Drain
Operation of the heat pump causes condensation that accumulates in specially designed condensate trays. Condensate
is removed from condensate trays via drainage pipes, therefore a condensate drainage system must be connected. Drainage
piping must be mounted with a slope, without narrowing sections or loops preventing water from draining. If such drainage
piping is installed outdoors or in unheated premises, it must be adequately insulated or equipped with a heating cable to
prevent water from freezing during winter. Drainage piping is connected to the unit with a siphon. Due to negative air pres-
sure in the air-handling unit, water may not drain out of the condensate collection tray by itself. Therefore, it is necessary to
connect a proper height siphon or a siphon with a one-way valve to the drain pipe.
p < 0 H mm
H/2 mm
Ø
15
m
m
Fig. 10. Installation of a siphon
Height H of a siphon without a one-way valve is selected according to static pressure p inside the air handling unit:
H [mm] = 25 + p [mm H
2
O] = 25 + 0.1 x p [Pa]
The height of a siphon with a non-return valve may be lower; however, it depends on the technical data of the siphon
used; therefore, if possible, we recommend choosing its height in the same way as for a siphon without a non-return valve.
Fig. 11. Example of a siphon with a one-way valve
Any drainage system cannot be directly connected to the common waste water system in order to protect supply air
from contamination with bacteria and odours. Condensate from the air handling unit drainage system shall be collected into
a separate container or should be lead to a sewage grille without any direct contact: do not connect drain directly to sewer
pipe and do not immerse it into water. Condensate collection location must be easily accessible for cleaning and disinfection.
Fig. 12. Condensate drain connection to sewer system