WDT Granudos 45/100-Touch User manual

Language: EN
Operating and installation instructions
Granudos 45/100 dosing unit
without control unit, for
GRANUDOS
45/100-CPR Touch XL
Operating instructions for the CPR
Touch XL Measuring and control
unit:
no.: BA MR 001
GRANUDOS
45/100-Touch
Operating instructions for the
Granudos Touch Control unit:
no.: BA SW 010
GRANUDOS
45/100-S5
Operating instructions for the
Granudos Touch Control unit:
no.: BA SW 014

Granudos 45/100-CPR Touch XL + Touch + S5
Dosing unit
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Table of contents
1About these instructions / general ............................................................................................................ 4
1.1 Scope of applicability........................................................................................................................ 4
1.2 Target group ..................................................................................................................................... 4
1.3 Symbols used .................................................................................................................................... 4
1.4 Warranty........................................................................................................................................... 6
1.5 Further information .......................................................................................................................... 6
2Safety ........................................................................................................................................................ 7
2.1 Intended use ..................................................................................................................................... 7
2.2 Safety notices.................................................................................................................................... 7
2.2.1 Handling of chemicals, risks to humans and the environment ............................................. 7
2.2.2 Protective measures and rules of conduct ............................................................................ 8
3Product description - scope of delivery...................................................................................................... 9
3.1 Scope of delivery / options ............................................................................................................... 9
3.2 Product description .......................................................................................................................... 9
3.2.1 Functioning of the GRANUDOS 45/100, dosing unit ............................................................. 9
3.2.2 Upright column with a rotatable drum holder (standard) .................................................. 12
3.2.3 Chlorine dosing (standard) .................................................................................................. 13
3.2.4 Dissolving unit (standard).................................................................................................... 14
3.2.5 Acid dosing (standard)......................................................................................................... 16
3.2.6 Buffertank............................................................................................................................ 17
3.2.7 Granudos Control unit ......................................................................................................... 18
3.2.8 Dust extraction (optional).................................................................................................... 18
3.3 Identification of device / nameplate .............................................................................................. 19
3.4 Technical data................................................................................................................................. 20
3.4.1 Requirements for the calcium hypochlorite granulate ....................................................... 22
3.5 Transport / storage......................................................................................................................... 22
4Installation ............................................................................................................................................... 23
4.1 Select the installation site............................................................................................................... 23
4.2 Installation instructions / installation suggestion........................................................................... 23
4.3 Mechanical installation................................................................................................................... 25
4.3.1 Installation of the GRANUDOS 45/100 dosing system ........................................................ 25
4.3.2 Installation of the buffertank (option) with / without protective tub ................................ 25
4.4 Hydraulic installation ...................................................................................................................... 26
4.4.1 Installation of the dissolving and measuring water supply ................................................. 28
4.4.2 Installation of the dosing line .............................................................................................. 30
4.4.3 Installation of the overflow line for the flushing tank......................................................... 30
4.4.4 Connect buffertank (optional)............................................................................................. 30
4.5 Electric installation.......................................................................................................................... 31
4.5.1 Open and close the housing, GRANUDOS CPR Touch and Touch ....................................... 31
4.5.2 Open and close the housing, GRANUDOS S5....................................................................... 32
5Commissioning ........................................................................................................................................ 33
5.1 Commissioning - remarks ............................................................................................................... 33
5.2 Commissioning................................................................................................................................ 33
5.2.1 Installation of peristaltic pump, roller support ................................................................... 33
5.2.2 Prepare acid dosing for operation....................................................................................... 34
5.2.3 Attach/change the drum ..................................................................................................... 35
5.2.4 Venting of the booster pump and the piping to the GRANUDOS 45/100........................... 39
5.2.5 Setting the water flow in the dissolving unit....................................................................... 40
5.2.6 Setting the water level in the flushing tank......................................................................... 41

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Dosing unit
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6Operation / service................................................................................................................................. 42
6.1 General ............................................................................................................................................42
6.2 Replenish consumables ...................................................................................................................42
7Maintenance, care, faults ......................................................................................................................... 43
7.1 Device maintenance ........................................................................................................................43
7.1.1 Cleaning dirt filter.................................................................................................................43
7.1.2 Replacing the dosing screw and the dust gasket .................................................................43
7.1.3 Injector with flow switch......................................................................................................46
7.1.4 Maintaining and setting the rinsing tray inlet floater control valve ....................................47
7.1.5 Replace and set the Chlorine empty switch at the dosing hopper ......................................48
7.1.6 Replace the dosing hose of the dosing pump ......................................................................48
7.1.7 Clean the dust extraction (optional) ....................................................................................49
7.2 Trouble-shooting .............................................................................................................................49
8Decommissioning –Storage –Disposal................................................................................................... 50
8.1 General ............................................................................................................................................50
8.2 Decommissioning of the GRANUDOS 45/100 dosing device ..........................................................50
8.3 Buffertank (optional) .......................................................................................................................50
8.4 Disposal of used parts and operating materials..............................................................................50
9Documents.............................................................................................................................................. 51
9.1 Declaration of conformity ...............................................................................................................51
9.2 Wiring diagrams...............................................................................................................................52
9.3 Commissioning protocol..................................................................................................................53
9.4 Operation data sheet.......................................................................................................................54
9.5 Maintenance protocol .....................................................................................................................55
9.6 Spare parts list, wear parts list, consumables .................................................................................56
10 Appendices.............................................................................................................................................. 58
Imprint:
All rights reserved
© Copyright by WDT –Werner Dosiertechnik GmbH & Co KG
Edition: see footer
Reproduction of any kind and translation into other languages, even in excerpts, are only permitted with the
express authorisation of the company WDT - Werner Dosiertechnik GmbH & Co. KG.
Subject to technical modifications
These operating instructions are an English translation of the original German version by the company WDT.
Responsible for the content:
Co. WDT - Werner Dosiertechnik GmbH & Co. KG
Hettlinger Str. 17
D-86637 Wertingen-Geratshofen
Phone:[phone] / 9 86 97 –0
Fax:[phone]
Email: [e-mail]

Granudos 45/100-CPR Touch XL + Touch + S5
Dosing unit
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1About these instructions / general
1.1 Scope of applicability
These instructions describe the function, installation, commissioning and operation of the
GRANUDOS 45/100-CPR Touch XL, 45/100-Touch and 45/100-S5 dosing system with
appropriate options.
Read these operating instructions carefully prior to operating the device and keep them in
close proximity to the device for immediate use!
These operating instruction are only valid together with following operating instructions:
for GRANUDOS CPR Touch XL, “CPR-Touch XL Measuring and control unit” no. BA MR 001.
for GRANUDOS Touch, “GRANUDOS Touch Control unit” no. BA SW 010.
for GRANUDOS S5, “GRANUDOS S5 Control Unit” no. BA SW 014.
1.2 Target group
Only our authorised partners and people who have been trained in the functioning of the
device are permitted to work on the device, provided that they have read and understood
these operating instructions.
Electrical connection work may only be carried out by appropriately trained specialists!
1.3 Symbols used
The following types of safety notices and general notices are used in this document:
DANGER!
“DANGER” denotes a safety notice which, if disregarded, may lead to
serious or life-threatening injuries or serious material damage!
CAUTION!
“CAUTION” denotes a safety notice which, if disregarded, may lead to
injuries, damage to health or material damage!
ATTENTION!
“ATTENTION” denotes a safety notice that, if disregarded, may lead to
material damage!
CORROSIVE!
"Corrosive" denotes a safety notice which, if disregarded when handling
chemicals, may lead to injuries or material damage.

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Dosing unit
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ESD SENSITIVE!
"ESD SENSITIVE" denotes electronic components that may be damaged
by electrostatic discharges. The generally accepted safety precautions for
ESD-sensitive devices must be observed when handling the devices!
Tip!
A “Tip” denotes information that may result in improvements in the
operating process.
Mandatory sign
Use face protection!
Mandatory sign
Use protective gloves! In accordance with DIN EN 374
Mandatory sign
Use protective apron!
Mandatory sign
Use protective boots!

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Dosing unit
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1.4 Warranty
All WDT devices and equipment are manufactured using modern production methods and
are subject to comprehensive quality control. However, should there be a reason for
complaint, any compensation claims shall be directed to the company WDT in accordance
with the general terms and conditions of warranty (see below).
General terms and conditions of warranty
The Co. WDT assumes a 2-year warranty, starting with the commissioning, up to 27 months after
delivery; subject to correct installation and commissioning with a completed and signed commissioning
protocol.
Exempt from this are wear parts such as gaskets, hoses, membranes, dosing screws, electrodes, roller
supports and other parts that are subject to mechanical or chemical wear and tear. For these we
assume a warranty of 1/2 year.
Our merchandise management programme requires an invoice for each delivery (including warranty
services). When returning a defective component, upon review you will receive a corresponding
credit, if applicable. We request a return within 14 days.
The costs for subsequent damages and for the processing of warranty claims are excluded.
There are no warranty claims for damages caused by frost, water and electrical overvoltage or by
improper handling.
Tip!
For the safeguarding of any warranty claims, please send the
completed commissioning protocol together with the defective
component to WDT. Without the commissioning protocol, we
reserve the right to assert a warranty regulation.
ATTENTION!
It is not permitted to make any modifications to the device. If this
specification is not observed, the warranty obligation and product
liability will expire!
1.5 Further information
Additional information concerning specific topics such as, for example, designing of the dosing
performance or description of the operating parameters, may be obtained from your
specialist dealer, or directly from:
WDT Werner Dosiertechnik GmbH & Co KG
Hettlinger Straße 17
86637 Wertingen - Geratshofen, Germany
Phone [phone]
Fax. [phone]
http://www.werner-dosiertechnik.de

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Dosing unit
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2Safety
2.1 Intended use
The GRANUDOS 45/100 dosing device may only be used for the purpose listed in the
product description in section 3.2! The locally applicable regulations concerning accident
prevention, occupational safety and drinking water protection must also be observed!
2.2 Safety notices
Carefully read and comply with the operating instructions prior to installation and use of the
device!
Work on the device and changes in the settings may only be carried out by properly
instructed persons!
Observe the warning notices on the device
2.2.1 Handling of chemicals, risks to humans and the environment
In the event of an emergency when dealing with chemicals you can also
contact the Emergency Poison Centre!
Emergency number:
Munich Emergency Poison Centre (or any other Poison Centre)
Phone: [phone]
Excerpt from the Accident Prevention Regulations, GUV-V D 5
Installation rooms for chlorination systems and storage rooms
Section 3a. (1) Chlorination systems must be installed in lockable rooms and the chemicals
intended for the chlorination must be stored in lockable rooms.
Re Section 3a Para. 1:
This requirement ensures that chlorination systems and chemicals shall be protected against
weather effects and unauthorised access.
(2) Rooms in accordance with Para. 1 must not be intended for the permanent presence of
persons.
Re Section 3a Para. 2:
…… A “permanent presence” is given when persons are present in the room for more than
2 hours per day. Repair and maintenance work on the chlorination system are exempt from
this.

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2.2.2 Protective measures and rules of conduct
CORROSIVE! SAFETY EQUIPMENT!
The GRANUDOS 45/100 dosing system is used for the dosing of
calcium hypochlorite granulate (colloquially: Chlorine granulate) as
well as the pH reducer (acid) from the supply canister.
These substances have a strong reaction when combined and release
toxic chlorine gas outside of water. For this reason, the greatest
possible care must be taken when working with chemicals and it is
essential that personal safety equipment is worn:
Face protection, protective gloves, protective apron, boots.
The chlorine granulate and the sulphuric acid must not be mixed with
each other or with other chemicals or substances!
Store the chemicals so that they are not accessible to unauthorised
persons.
When storing chemicals observe the notices in Section 3.5, Storage of
chemicals.
More information can be found in the chemical manufacturer's safety
data sheets!
ESD SENSITIVE!
The electronic components in the device controls are sensitive to
electrostatic discharge. The generally accepted safety precautions for
ESD-sensitive devices must be observed when handling the devices.
Disconnect the device from the voltage supply
Discharge of personal static charge

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Dosing unit
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3Product description - scope of delivery
3.1 Scope of delivery / options
The scope of delivery includes the "GRANUDOS 45/100" dosing system which consists of
the following components:
Upright column with a rotatable drum holder
Controll unit with 7” touch colour display ( type “CPR Touch XL” and type “Touch” only)
Dosing device for chlorine granulate
Dosing device for acid
Dissolving unit for chlorine and acid
The following options are available for the dosing system
a) Buffertank with or without protective tub (type “CPR Touch XL” and type “Touch” only)
b) Remote display and remote access (type “CPR Touch XL” and type “Touch” only)
c) Lifting device
3.2 Product description
The GRANUDOS dosing system for the disinfection of swimming pool water with calcium
hypochlorite.
3.2.1 Functioning of the GRANUDOS 45/100, dosing unit
The GRANUDOS 45/100 dosing system uses calcium hypochlorite granulate and acid to
prepare a neutral, very low-concentrate chlorine solution (maximum 0.4% chlorine) for the
disinfection of swimming pool water. The chlorine granulate and the acid needed for
neutralisation are dosed in turns with intermittent breaks into the dissolving unit. The dosed
chemicals are completely dissolved and fed into the piping of the swimming pool water circuit.
The GRANUDOS 45/100 dosing device is particularly well-suited for swimming pools with
a water volume between 200 and 1500m³.
The functions of the GRANUDOS 45/100-CPR Touch XL
Measuring free chlorine with open measuring cell, potentiostatic pH value, redox potential
and temperature
Controlling chlorine dosing using the measured value for free chlorine or redox potential.
Dosing of chlorine granulate from the chlorine drum using the dosing screw and the
knocker
Dosing of acid (pH reducer) from the delivery canister using the peristaltic pump
Filling a buffertank with chlorine solution for disinfecting additional small basins using
dosing pumps (optional)
The functions of the GRANUDOS 45/100-Touch
Dosing of chlorine granulate from the chlorine drum using the dosing screw and the
knocker
Dosing of acid (pH reducer) from the delivery canister using the peristaltic pump
Filling a buffertank with chlorine solution for disinfecting additional small basins using
dosing pumps (optional)
The functions of the GRANUDOS 45/100-S5
Dosing of chlorine granulate from the chlorine drum using the dosing screw and the
knocker
Dosing of acid (pH reducer) from the delivery canister using the peristaltic pump

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Dosing unit
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Functional principle of the GRANUDOS 45/100-CPR Touch XL dosing system
ATTENTION!
During installation, the locally applicable provisions must be observed,
e.g., DIN 19643 in Germany.
Figure 1, Flow diagram GRANUDOS 45/100-CPR Touch XL without buffertank
Dosierleitung
Wärme-
tauscher
Umwälz-
pumpe
Schwimmbecken
Überlauf-
becken
Filter
Zentrale
Steuerung
Steuereinheit CPR
mit Messzellenblock
GRANUDOS
Dosiersystem für Calziumhypochlorit
Chlor Säure
Zulaufleitung Löse- und Messwaser Fliesdruck > 0,2 barÜ
Sicherheitsabschaltung
Figure 2, Flow diagram GRANUDOS 45/100-CPR Touch XL with buffertank
Y
Messen und Regeln
A
A
S
S
L max
L min
Puffertank für
Chlorlösung
Dosierstation
für pH- Senker
Weitere
Becken
möglich
Überlauf-
becken
Hauptbecken
Filter
Wärme-
tauscher
Nebenbecken
Wärme-
tauscher
Umwälz-
pumpe
Filter
Umwälz-
pumpe
Überlauf-
becken
Zentrale
Steuerung
Steuerung für
Niveauschalter
Magnetventil öffnet
bei Behälter leer
- Granudos dosiert
mit hoher Dosier-
leistung bis Behälter
voll - ca. 10 Minuten.
In dieser Zeit keine
Dosierung auf
Hauptbecken.
Luft- Versorgungsdruck
min.5 barÜ
Steuerventil am Granudos
NC NO
Durchfluss-
Regelventil
Dosierleitung
Steuereinheit CPR
mit Messzellenblock
GRANUDOS
Dosiersystem für Calziumhypochlorit
Chlor Säure
Zulaufleitung Löse- und Messwasser Fliesdruck > 0,2 barÜ
Sicherheitsabschaltung
1
2
Control unit type CPR
with measuring cell block
Dosing line
Heat
exchanger
Filter
Circulating
pump
Overflow
basin
Swimming pool
Safety shut-down
Inlet pipe Dissolving water and measuring water Flow pressure > 0.2barg
Central
controller
Dosing system for calcium hypochlorite
Chlorine Acid
1
2
Heat
exchange
r
Circulating
pump
Auxiliary basin
Main basin
Controller for
level switch
Additional
basins are
possible
Dosing station
for pH reducer
Buffertank for
chlorine solution
Solenoid valve opens
when container is empty
-GRANUDOS doses with
a high dosing performance
until the container is full -
approx. 10 minutes.
No dosing to the main
basin during this time
Flow control
valve
Air supply pressure
minimum 5barg
Measuring +controlling
Control valve on the Granudos
Control unit type CPR
with measuring cell
block
Dosing line
Heat
exchanger
Filter
Circulating
pump
Overflow
basin
Safety shut-down
Inlet pipe Dissolving water and measuring water Flow pressure > 0.2barg
Central
controller
Dosing system for calcium hypochlorite
Chlorine Acid
Overflow
basin
Filter

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Dosing unit
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Functional principle of the GRANUDOS 45/100-Touch and S5 dosing system
ATTENTION!
During installation, the locally applicable provisions must be observed,
e.g., DIN 19643 in Germany.
Figure 3, Flow diagram GRANUDOS 45/100-Touch and S5 without buffertank
Y
Messen und Regeln
Wasserentnahme und
Dosieranschluß: Muffe3/4"
Verrohrung. DN20
Säure
GRANUDOS
Touch
GRANUDOS
Dosiersystem für Calziumhypochlorit
Wärme-
tauscher
Umwälz-
pumpe
Schwimmbecken
Überlauf-
becken
Filter
Zentrale
Steuerung
Chlor
Dosierleitung
Zulaufleitung Fließdruck > 0,2bar
Figure 4, Flow diagram GRANUDOS 45/100-Touch with buffertank
Y
Messen und Regeln
Y
Messen und Regeln
A
A
S
S
L max
L min
GRANUDOS
Dosiersystem für Calziumhypochlorit
Chlor Säure
Dosierstation für
Chlorlösung
Dosierstation
für pH- Senker
Weitere
Becken
möglich
Überlauf-
becken
Hauptbecken
Chlor und
pH- Senker
Hauptbecken
Filter
Wärme-
tauscher
Nebenbecken
Wärme-
tauscher
Umwälz-
pumpe
Filter
Umwälz-
pumpe
Überlauf-
becken
Zentrale
Steuerung
Steuerung für
Niveauschalter
Magnetventil
öffnet bei Behälter
leer - Granudos dosiert
mit hoher Dosier-
leistung bis Behälter voll
- ca. 10 Minuten. In dieser
Zeit keine Dosierung auf
Hauptbecken.
NO
NC
GRANUDOS
Touch
Dosierleitung
Zulaufleitung Fließdruck > 0,2bar
3
2
3
2
Water withdrawal and dosing
connection: Sleeve ¾“
Piping: DN 20
Chlorine and
pH reducer
main basin
Heat
exchanger
Circulating
pump
Auxiliary basin
Main basin
Controller for
level switch
Additional
basins are
possible
Dosing station
for pH reducer
Buffertank for
chlorine solution
Solenoid valve opens when
container is empty
-GRANUDOS doses with a
high dosing performance until
the container is full - approx.
10 minutes.
No dosing to the main basin
during this time
Measuring + controlling
Control unit type
Granudos Touch and S5
Dosing line
Heat
exchanger
Filter
Circulating
pump
Overflow
basin
Inlet pipe Flow pressure > 0.2barg
Central
controller
Dosing system for calcium hypochlorite
Chlorine Acid
Overflow
basin
Filter
Measuring + controlling
Dosing line
Heat
exchanger
Filter
Circulating
pump
Overflow
basin
Swimming pool
Inlet pipe Flow pressure > 0.2barg
Central
controller
Dosing system for calcium hypochlorite
Chlorine Acid
Control unit type
Granudos Touch and S5

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Dosing unit
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3.2.2 Upright column with a rotatable drum holder (standard)
The rotatable drum holder is mounted on the stable upright column (3). The chlorine drum
(7) is set on this drum holder and strapped to the rear wall with 2 tension bands (8). Together
with the drum holder, the drum can be rotated into the dosing position. The spring bolt (14)
is used to lock the drum holder in its respective position. The dosing pump (15) for the dosing
of the pH reducer (acid) and the dirt filter (31) for the booster pump of the dissolving unit
are installed on the upright column.
From GR45/100-CPR
1. Main switch
2. Pressure retention valve
3. Upright column with drum holder
4. Ball valve Inlet
5. Control unit
a) For type CPR Touch XL with measuring cell
block, see separate operating instructions
“CPR-Touch XL Measuring and control unit” no.
BA MR 001)
b) For type CPR Touch XL without measuring
cell block, see separate operating instructions
“GRANUDOS Touch Control unit” no. BA SW
010)
c) For type S5 without measuring cell block,
see separate operating instructions “GRANU-
DOS Touch Control unit” no. BA SW 014)
6. Nameplate (on the right side of the upright pipe,
covered)
7. Chlorine drum
8. Tension bands
9. Safety belt
10. Chlorine dosing unit
11. Clamping lever for the safety
belt
12. Dust protection
13. Dissolving and flushing unit for
chlorine granulate with cover
14. Spring bolt for the turning
device (on the right side of the
upright pipe, covered)
15. Dosing pump for pH reducer
(acid) (on the right side of the
upright pipe, covered)
16. Suction lance for pH reducer
17. Canister for pH reducer (acid)
with protective tub
18. Dust extraction (not illustrated),
see Figure 11, Page 18
Figure 5, GRANUDOS 45/100
1
2
3
4
17
16
14
15
9
10
11
8
5
13
6
12
7

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Dosing unit
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3.2.3 Chlorine dosing (standard)
The illustrated dosing head is screwed on the chlorine drum. It is used for dosing the chlorine
granulate into the dissolving unit.
Figure 6, dosing head for chlorine granulate
21. Screw ring (with drum thread)
22. Chlorine empty switch
23. Dosing hopper
24. Protective cover
25. Dosing screw
26. Heating pipe (with dosing pipe)
27. Sealing washer
28. Motor bracket with screw tube
29. Dosing motor
30. Solenoid knocker
The dosing device consists of the dosing hopper (23) installed on the chlorine drum and the
dosing unit. The latter consists of the dosing motor with flange (29), the dosing screw (25),
the motor bracket (28) and the heating pipe (26).
The heating of the dosing pipe prevents the condensation of water vapour, which could lead
to a dosing blockage.
The dosing screw (25) conveys the calcium hypochlorite granulate from the Dosing hopper
(23) into the flushing pipe (34) of the underlying dissolving unit. A Solenoid knocker (30) is
installed for breaking up the chlorine granulate; during each dosing process, the solenoid
knocker delivers a short blow to the dosing hopper, thus preventing the granulate from
bridging over the dosing screw.
The chlorine dosing is organized in alternating cycles with the acid and is monitored. See OI
"CPR-Touch XL Measuring and control unit", no.: BA MR 001.
30
29
28
27
23
24
25
22
21
26

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Dosing unit
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3.2.4 Dissolving unit (standard)
Overview dissolving unit
The dissolving unit consists of:
31. Dirt filter d75mm
32. Outflow ball valve for booster water
33. Connection for manometer
34. No chlorine switch / sensor on the cyclone (optional, not illustrated)
35. Dissolving and mixing cyclone
36. Screw connection with washer
37. Overflow flushing tank
38. Level switch min./max. Flushing tank
39. Booster pump (different designs)
40. ---
41. Pressure switch
42. Injector
43. Dosing valve for pH reducer (acid)
44. Flushing pipe
45. Float control valve flushing tank Inlet
46. Flushing tank
47. Flow switch flushing tank
48. Connection socket for the switches
49. Motor for dust extraction (not illustrated, see Figure 11)
50. Fan for dust extraction (not illustrated, see Figure 11)
51. Suction hose for dust extraction (not illustrated, see Figure 11)
52. Connection line for dust extraction (not illustrated, see Figure 11)
In the dissolving unit, the dissolving water originating from the filter circuit is separated down-
stream of the booster pump (39), and the chemicals are dissolved separately. A partial flow is
directed into the flushing tank (46) via the float control valve (45). From there, it is suctioned
off by the injector (42), together with the additional chemicals dosed in the flushing pipe (44).
The chlorine granulate and the pH reducer (acid) (liquid) are dosed in turns with intermittent
breaks into the water flowing through the flushing pipe. Approx. 50% of the chlorine granulate
Figure 7, Dissolving unit from above
41
42
46
45
44
39
43
32
33
34
35
37
31
38
36
48
47

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is dissolved in the injector; the remainder is kept in circulation in the dissolving cyclone (35)
until it has been completely dissolved. Shortly after the dosing has started, the chlorine granu-
late can bee seen in the cyclone. An optical sensor (34) records the dosed chlorine granulate,
which can bee seen in the cyclone shortly after the dosing has started. If no chlorine is recorded
8 seconds after the start of the 2nd dosing cycle, the controller reports a fault and the dosing
is stopped. (This function is only active during the filling of the buffertank!)
Changes in the dissolving unit's water supply that cause the dissolving unit to no longer
operate properly are recorded by the level switch (38), the flow switch (47) and the pressure
switch (41). 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:
OI "CPR-Touch XL, Measuring and control unit", no.: BA MR 001, or
OI “GRANUDOS Touch, Control unit”, no.: BA SW 010 or
OI “GRANUDOS S5,Control unit”, no.: BA SW 014.
A pressure switch (41) is installed in the booster pump's pressure line. This is intended to
turn off the GRANUDOS in case of a pressure drop or the Inlet of air to prevent the pump
from running dry.
In addition, a monitoring switch can be connected to turn off the dosing in the event of a fault
in the filter system, e.g., no flow in the clean water line.
The flow switch (47) installed in the injector’s (42) suction line is of essential importance for
the GRANUDOS’ operational safety! If the injector’s suction capacity (minimum 150l/h) is
too low, the switching body that has been pushed upward by the upward flow in the suction
pipe drops and the chemical dosing is turned off. This ensures that dosing only occurs in
vigorously flowing water and the two chemicals cannot meet in the open area.
At the same time, the float control valve (45) blocks the Inlet to the flushing tank in the event
of a downtime or malfunction of the device. However, these measures cannot guarantee an
absolute separation from the circulation circuit. If this is required, securely sealing shut-off
valves would have to be installed in the Inlet and dosing lines, or, corresponding to the pres-
sure situation, non-return valves or self-closing pneumatic valves. The valves’ pressure loss
must be taken into consideration during operation.
The flushing tank overflow (37) conducts the - chlorine-free - excess water that occurs in case
of the “water max” fault to the duct.
The pressure retention valve (02) is used to supply the measuring device with a constant
pressure and prevents the overflow of the flushing tank when no water is suctioned off. It is
preset by the factory.
To prevent the chlorine granulate and the acid from meeting and reacting with each other in
the dissolving unit's open part, the following safety package has been installed:
The dosing of the two chemicals occurs in set cycles with breaks between the dosing
processes. The power supply of the two dosing motors is locked via a relay system in
such a way that the both motors can never be running at the same time!
The water supply and water flow are monitored by the pressure switch (41), level switch
(38) and flow switch (47).
Dosing only takes place when the water flow is ensured.
In the event of any deviation from the set target values, the dosing system is turned off
and a corresponding fault indication is generated.
ATTENTION!
The use of sulfuric acid is generally possible up to a concentration of
50%. With higher concentrations or when using other acids (e.g.,
hydrochloric acid, dissolved sodium bisulphate, etc.), pay attention to

Granudos 45/100-CPR Touch XL + Touch + S5
Dosing unit
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a change in dosing performance and/or increased corrosiveness! We
recommend consultation with the manufacturer!
The dissolving water supply should be separated from the swimming pool's filter function.
There are 2 options to do this: (see also illustration in Section 4.4.1 "Installation of the dissolving
and measuring water supply".
Possibility 1 ;
Water withdrawal from the swimming pool
Possibility 2 ;
Water withdrawal from the pipe between the circulating pump and the filter prior to chemical
dosing. Only use this alternative in exceptional cases when possibility 1 cannot be realised!
Possibility 3 ;
Water withdrawal between filter and heat exchanger, before chemical dosing with 3/4"
sleeve. The flow pressure at the GRANUDOS inlet must be at least 0.2barg. Only use
this alternative in exceptional cases when possibility 1 cannot be realised!
3.2.5 Acid dosing (standard)
The acid dosing in the GRANUDOS 45/100 serves for the complete
dissolving and neutralisation of the chlorine granulate and the
correction of the pH value. It generates a hypochloric acid. For each
kg of chlorine granulate, approx. 0.5-1 litres of 37% sulfuric acid must
be added. For this purpose, a peristaltic pump (15) is installed as
standard. The acid dosing is controlled automatically by the controller.
However, acid dosing for filling the buffertank must be adjusted.
Chlorine dosing must be adjusted during commissioning to ensure that
the pH value of the chlorine solution in the buffertank is 6.8 - 7.2. The
calcium hypochlorite is then completely dissolved. The solution is clear
for practical purposes and has no strong chlorine smell. The solution
smells strongly of chlorine and is more corrosive when the pH value is
too low. The solution is murky and forms sediments or deposits in the buffertank and the
dosing lines when the pH is too high. The correct dosing ratio is set after measuring the pH
value.
Hose pumps can transport very small dosing amounts in a reliable and continuous manner,
even when air or gas bubbles are included in the suction line. Rotating rollers press the dosing
hose against the housing wall, squeeze out the liquid in front of the rollers, and aspirate new
liquid behind them. Hose pumps are extremely reliable and easy to operate.
The hose pump aspirates the acid out of the acid canister through a suction lance (Pos. 16,
Page 12). The filling level in the acid canister is measured by a level switch for the empty
message.
Use sulphuric acid with a saturation level of 37-50% as pH-reducer. Concentrated
hydrochloric acid destroys the hose pump - dilute to below 10%. Dissolved sodium bisulphate
solutions should not have concentrations higher than 20% (corresponds to 10% sulphuric
acid). It must be considered whether this acid performance is sufficient for neutralisation.
Hint !
In special cases, e.g. when water is very hard and/or has a high pH value and/or a very
high dosing performance is required, it is recommended to use hydrochloric acid instead
of sulphuric acid in order to prevent possible formation of gypsum residues due to high
sulphate concentrations in the buffertank.
Figure 8, Acid
dosing pump

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Dosing unit
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3.2.6 Buffertank
The buffer container has a 4-way level switch installed. Filling the buffertank is elusively
controlled with a level switch in the buffertank. The dissolving water supply is blocked by a
solenoid valve once the buffertank has been filled with chlorine solution.
61. Active carbon filter
62. Collecting tray PP, not shown
63. 4-stop level switch,
Level minimum alarm;
Level minimum;
Level maximum;
Level minimum alarm;
64. Alarm switch in collecting tray (not
shown)
65. Buffertank 300 l PE
1. Buffertank filling is started at the minimum buffertank control level.
2. Buffertank filling is stopped at the maximum buffertank control level. This is followed by
a rinsing cycle to clean the dissolving system: First 20 seconds with acid, then another
20 seconds with plain water.
3. An alarm message is shown on the display at minimum alarm level.
4. An alarm message is shown on the display at maximum alarm level.
Contact positions
The contacts of the level switches are set as follows when the container is half full:
Level position Contact
Level minimum opened
Level minimum alarm opened
Level maximum opened
Level maximum alarm closed
An active carbon filter (61)is screwed on top of the buffertank. It is used to clean the chlorine-
polluted air during filling of the buffertank and for ventilating and bleeding.
However, for the filling of the buffertank, the acid dosing must be adjusted. During
commissioning, the chlorine dosing must be adjusted so that the chlorine solution has a pH
value between 6.8 and 7.2 in the buffertank. In that case, the calcium hypochlorite solution is
completely dissolved. The solution is practically clear and lacks a strong chlorine smell. If the pH
value is too low, the solution has a strong chlorine smell and acts more corrosive. If the pH
value is too high, the solution is cloudy and precipitation or deposits form in the buffertank and
in the dosing lines. The correct dosing ratio is set after measuring the pH value.
Figure 9, Buffertank without
protective tray
61
62
64

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Dosing unit
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The acid dosing is performed using a peristaltic pump. Peristaltic pumps
are able to convey even the smallest dosing quantities reliably and
evenly, even when air or gas bubbles are trapped in the suction line.
Rotating rollers press the dosing hose against the casing wall, which
pushes the liquid in the hose out from the rollers while simultaneously
feeding behind it. It is exceptionally reliable and easy to operate.
The peristaltic pump sucks the acid through the suction lance (16) from
the acid canister. The fill level in the acid canister is determined for the
empty signal using a level switch.
Use acid based on 37-50% sulphuric acid as a pH reducer.
Concentrated hydrochloric acid destroys the peristaltic pump –dilute
to below 10%! In solutions consisting of sodium bisulphate "dry acid", do not use
concentrations above 20% (approx. equivalent to 10% sulphuric acid). It must be considered
whether the acid capacity is sufficient for the neutralisation.
Tip!
In special cases, e.g., if the water is very hard and/or has a high pH
value and/or a high dosing performance is required, it is
recommended to use hydrochloric acid instead of sulfuric acid, to
prevent the potential formation of gypsum residue due to high
sulphate concentrations in the buffertank (optional).
3.2.7 Granudos Control unit
See operating instructions “Measuring and control unit CPR-Touch GRANUDOS CPR
Touch XL“, no. BA MR 001.
See operating instructions “Control unit GRANUDOS Touch“, no. BA SW 010.
See operating instructions “Control unit GRANUDOS S5“, no. BA SW 014.
3.2.8 Dust extraction (optional)
The dust extraction serves to sup-
port the prevention of dust in the
GRANUDOS dosing system. The
use of granulates with an in-
creased dust content may lead to
a minor dust discharge at the de-
vice. This will subsequently settle
on the protective cover. To pre-
vent this, a slight underpressure is
generated by means of a motor
(49)with a fan (50). The dust is
suctioned through the flushing
pipe into the fan container via a hose (51). The dust remains in the Granudos’ dissolving
system via the connection line (52)to the flushing tank and the circulating water.
The stirrer is mounted on the stirring container's cover. To ensure aeration, a bent nozzle is
attached on the lid on the side for the water recirculation.
Figure 10, Acid
dosing pump
Figure 11, Dust extraction
51
49
50
52

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Dosing unit
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3.3 Identification of device / nameplate
Enter the data from the nameplate of your device here.
Field 1: Complete the type identification
Field 2: Enter drum type
Field 3: Article no.:
Field 4: Serial no.:
Field 5: Enter date of manufacturing
Nameplate GRANUDOS 45/100-CPR Touch
Nameplate GRANUDOS 45/100-Touch
Nameplate GRANUDOS 45/100-S5

Granudos 45/100-CPR Touch XL + Touch + S5
Dosing unit
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3.4 Technical data
GRANUDOS 45/100-CPR Touch XL
GRANUDOS 45/100-Touch
Dimensions and weights:
Device dimensions
W 60cm, D 70cm, H 140cm
W 60cm, D 70cm, H 140cm
Device space requirement (base)
W 130cm, D 80cm, H 200cm
W 130cm, D 80cm, H 200cm
Space requirement, incl.
operation and maintenance
W 140cm, D 170cm, H 210cm
W 140cm, D 170cm, H 210cm
Empty weight / operating weight
approx. 40kg / 85kg
approx. 38kg / 83kg
Connection data
Electric connection data
230VAC/50Hz ± 10%, 350W,
I max. 3.15A, safety plug
230VAC/50Hz ± 10%, 350W,
I max. 3.15A, safety plug
Protection class
IP 54
IP 54
Hydraulic connection data
Inlet DN25
Outlet DN20
Overflow dissolving unit DN20
Drain collecting basin DN25/32
Inlet DN25
Outlet DN20
Overflow dissolving unit DN20
Drain collecting basin DN25/32
Required duct connection
At least DN25
At least DN25
Operating pressure
Required inlet pressure
Counter-pressure
max. 2.5barg
min. 0.2barg
0 - 1.5barg (depending on inlet pressure)
max. 2.5barg
min. 0.2barg
0 - 1.5barg (depending on inlet pressure)
Water supply
from the clean water line:
Flow pressure min. 0.2barg
In exceptional cases:
Between circulating pump and filter, before
chemical dosing
Flow pressure min. 0.2barg
Between circulation pump and filter, or filter
and heat exchanger, before chemical dosing
using the booster pump;
Flow pressure min. 0.2barg
Operating data:
max. dosing performance GR 45-
GR 100
Chlorine: 1-2kg/h (1)
Acid: max. 3l/h (2)
Chlorine: 2-4kg/h (1)
Acid: max. 3l/h (2)
Chlorine: 1-2kg/h (1)
Acid: max. 3l/h (2)
Chlorine: 2-4kg/h (1)
Acid: max. 3l/h (2)
Water flow
approx. 800 –1000l/h
approx. 800 –1000l/h
Filling capacity of the dosing
device
max. 1200l/h
max. 1200l/h
Booster pump
0.33kW, 230V, 1.95A
0.33kW, 230V, 1.95A
Medium temperature
Ambient temperature
Humidity engineering room
5°C to 35°C
5°C to 35°C
Max: 70%
5°C to 35°C
5°C to 35°C
Max: 70%
Concentration hypochloric acid
GR 45: max. 0.2%
GR 100: max. 0.35%
GR 45: max. 0.2%
GR 100: max. 0.35%
Room ventilation (in and out)
The locally applicable provisions must be observed, e.g., DIN 19643 in Germany
Material
Upright column: Steel, galvanised and
painted
Other functioning parts: PVC or PE
Gaskets: EPDM, viton
Upright column: Steel, galvanised and
painted
Other functioning parts: PVC or PE
Gaskets: EPDM, viton
Footnotes for the technical data
(1) The dosing performance for the chlorine granulate depends on the type of granulate: In case of a high dust
content in the granulate or with very coarse materials > 3 mm or elongated grains, the dosing performance
may be significantly reduced. If the maximum dosing performance is required, a granulate with a low dust
content must be used.
(2) This performance is required for neutralisation with a high chlorine dosing performance, using sulfuric acid
between 37% and 50%.