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© by WilTec Wildanger Technik GmbH Item 50105, 50123, 50977
–50980, 50121, 51042–51044
Page 10
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http://www.aoyue.eu 09 2021 -1
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CPF-280/CPF-500
Part Name Explanation
A Water inlet The pump is connected to the water inlet via a pressure hose.
B Whirl system
The water permeates through the bio-filter materials due to the centrif-
ugal and gravitational forces.
C Mechanical filter
Dirt particles are retained on the surface of the sponge filter before the
water flows towards the inner of the filter.
D Biological cleaning
Microorganisms settle on the filter sponge pores. The blue and the
yellow filter sponge differ in size and density. This generates zones/ar-
eas through which the water flows at different speeds. In the zones/ar-
eas with a high flow speed (blue filter), mainly microorganisms settle
that convert ammonium to nitrate. In the areas in which the water flows
faster (yellow filter), mainly anaerobic microorganisms accumulate
that reduce the nitrate to nitrogen.
E
Pre-cleaning of the pond
water
When the water flows out, it is shortly exposed to the UV radiation
emitted by the UV lamp. As a result, germs, bacteria, and algae are
destroyed. The water circulates when flowing through the filter from
inside outwards.
F
Water discharge with
flow display
The cleaned water flows back into the pond.
G
Hose tails for rinsing water when on cleaning (CPF-180/CPF-250)
Flow indicator (CPF-280/CPF-500)
Hose tails for rinsing water when on cleaning (CPF-2500-5000-10000-15000-20000-30000)
H
The function switch changes between “filtration” and “clean filter.”
I
Flow indicator (CPF-
180/CPF-250)
When there is too much dirt on the sponge, the turbidimeter will
change from green to yellow to warn you to clean the sponge.
Cleaning crank (CPF-2500-5000-10000-15000-20000-30000)