Dosing unit GRANUDOS Type Flex-CPR Touch XL,
Type Flex-Touch and Type Flex-S5
Index: 01 Change date: 11/10/2023
OI No.: BA SW 022-01 Granudos Flex Dosiereinheit EN.docx
Page 16 of 68
Overview flushing tub
Figure 10, GRANUDOS Flex flushing tub
Key dissolving unit/flushing tub
Description
The dissolving unit is installed on a base plate in the plastic housing and is used for the separate dis-
solving of the chemicals.
In the dissolving unit, the dissolving water originating from the swimming pool filter system is sepa-
rated downstream of the booster pump (36). A partial flow is directed to the injector. The other partial
flow is directed into the flushing tub (39) via the floating valve (47). From there, it is suctioned off by
the injector (40), together with the additional chemicals dosed in the flushing pipe (38). The chlorine
granulate and the pH-reducer (acid) are dosed in turns with intermittent breaks into the water flowing
through the flushing pipe. Approx. 50% of the chlorine granulate is dissolved in the injector, the re-
mainder is kept in circulation in the dissolving cyclone (44) until it also has been completely dissolved.
Shortly after the dosing has started, the chlorine granulate can be seen in the cyclone.
Changes in the dissolving unit’s water supply that cause the dissolving unit to no longer operate
properly are recorded by the level switch (48), the flow switch (42) and the pressure switch (31). In
these cases, the dosing of chemicals and also the booster pump, if applicable, will be turned off to
prevent potential subsequent damage. For detailed information, see the separate Operating Instruc-
tions for the control unit:
For GRANUDOS CPR Touch XL, Operating Instructions “CPR-Touch XL Measuring and Control
Unit” No. BA MR 001.
For GRANUDOS Touch, Operating Instructions “GRANUDOS Touch Control Unit” No. BA SW
010.
For GRANUDOS S5, Operating Instructions “GRANUDOS S5 Control Unit” No. BA SW 014.
31.
Pressure switch
32.
Pressure retention valve for supplying measuring cell
block (only CPR Touch XL)
33.
Outflow for supplying the measuring cell
block (only CPR Touch XL)
34.
Dirt filter d75 mm
35.
Flushing connection for dirt filter
36.
Booster pump; different designs
37.
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38.
Flushing pipe
39.
Flushing tub
40.
Injector
41.
Pipe union with hole washer
42.
Flow switch for suction pipe
43.
Dosing valve for pH-reducer
44.
Dissolving and mixing cyclone
45.
Dust cover for booster pump
46.
Flushing tub overflow
47.
Floating valve inlet for flushing tub
48.
Level switch min/max for flushing tub
49.
Lid for flushing tub
50.
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Summary of Contents for GRANUDOS Flex-CPR Touch XL
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