Wilo Medana CH1-L Series User manual

Pioneering for You
·
Wilo-Medana CH1-L, Wilo-Medana CH3-LE
4234327 • Ed.05/02/2022
en Installation and operating instructions

Fig. 1
Fig. 2a Fig. 2b Fig. 2c
10
11
12
13
4
3
1
8
7
9
2
5
6

Fig. 3a
Fig. 3b
11
1 3
3
1
7
2
5 (12.5n.m)
6
9
10
6
20mm min.
100mm min.
200mm min.
HC min.
OU/OR
8
4 (12.5n.m)
HA max.
2%
20mm min.
5
6
2 6
3
1 4
7

Fig. 4
Fig. 3c
Fig. 6
Fig. 5
Min. 5 cm
Min. 5 cm
1 3
7
1
7
9
8
5
3
6 2
4
HC min.
OU/OR
100mm min.
200mm min.
(12.5n.m)
(12.5n.m)
~1
~1
~3
HIGH (voltage) LOW

Fig. 7
Fig. 8
Fig. 9
A
B
C
A
B
C
E
E
D
D
Nm
4,2/5.5kW

7
English ............................................................................................................... 8

en
8 WILO SE 02/2022
Contents
1 General....................................................................................................................................................................................... 9
1.1 About this document ........................................................................................................................................................................................9
2 Safety......................................................................................................................................................................................... 9
2.1 Symbols ...............................................................................................................................................................................................................9
2.2 Personnel qualifications.................................................................................................................................................................................10
2.3 Safety consciousness on the job .................................................................................................................................................................. 10
2.4 Safety instructions for the operator............................................................................................................................................................. 10
2.5 Safety instructions for installation and maintenance work...................................................................................................................... 10
2.6 Unauthorised modification of components and use of unauthorised spare parts................................................................................ 10
2.7 Improper use.................................................................................................................................................................................................... 10
3 Product information ............................................................................................................................................................... 10
3.1 Type key........................................................................................................................................................................................................... 10
3.2 Data table......................................................................................................................................................................................................... 11
3.3 Scope of delivery............................................................................................................................................................................................. 12
3.4 Accessories ...................................................................................................................................................................................................... 12
4 Transport and interim storage .............................................................................................................................................. 12
5 Application .............................................................................................................................................................................. 12
6 Description and function ....................................................................................................................................................... 13
6.1 Description of the product ............................................................................................................................................................................ 13
6.2 Product characteristics .................................................................................................................................................................................. 13
7 Installation and electrical connection .................................................................................................................................. 13
7.1 Receipt of the product ................................................................................................................................................................................... 14
7.2 Installation ....................................................................................................................................................................................................... 14
7.3 Mains connection............................................................................................................................................................................................ 15
7.4 Electrical connection...................................................................................................................................................................................... 15
7.5 Operation with a frequency converter......................................................................................................................................................... 15
8 Commissioning........................................................................................................................................................................ 16
8.1 Filling and deaeration..................................................................................................................................................................................... 16
8.2 Starting............................................................................................................................................................................................................. 17
9 Maintenance............................................................................................................................................................................ 17
10 Faults, causes and remedies .................................................................................................................................................. 18
11 Spare parts............................................................................................................................................................................... 19
12 Disposal.................................................................................................................................................................................... 19

General en
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE 9
1 General
1.1 About this document The installation and operating instructions are an integral part of the product. Read
these instructions before carrying out any work and keep them at hand at all times.
Strict adherence to these instructions is a precondition for the correct installation and
application of the product. Comply with all indications and signs that appear on the
product.
The language of the original installation and operating instructions is English. All other
languages of these instructions are translations of the original installation and operat-
ing instructions.
2 Safety This chapter contains essential instructions that must be followed during the different
phases of the pump’s service life. Non-observance of these instructions may constitute
a danger to persons, the environment and the product, and may invalidate the warranty.
Non-observance may lead to the following hazards:
ƒInjuries due to electrical, mechanical and bacteriological factors and electromag-
netic fields.
ƒDamage to the environment due to leakage of hazardous materials.
ƒDamage to the installation.
ƒFailure of important product functions.
Also comply with the indications and safety instructions in other chapters!
2.1 Symbols Symbols:
WARNING
General safety symbol
WARNING
Electrical risks
NOTICE
Notes
Warnings:
DANGER
Imminent danger.
May result in death or severe injuries if the hazard is not prevented.
WARNING
Non-observance may result in (very) severe injury.
CAUTION
The product risks becoming damaged. “Caution” is used when there is a risk to the
product if the user does not observe procedures.
NOTICE
Note containing useful information for the user about the product. It assists the user
in the case of an issue.

en Product information
10 WILO SE 02/2022
2.2 Personnel qualifications The installation, application and maintenance personnel must have the appropriate
qualifications to complete this work. The operator must ensure the personnel’s areas of
responsibility, terms of reference and their supervision. If the personnel are not in pos-
session of the necessary knowledge, they are to be trained and instructed. If necessary,
this training can be carried out by the product’s manufacturer on the operator’s behalf.
2.3 Safety consciousness on the job The existing directives for accident prevention must be adhered to. Danger from elec-
trical current must be eliminated. Local directives or general directives [e.g. IEC, VDE
etc.] and instructions from local energy supply companies must be respected.
2.4 Safety instructions for the oper-
ator This device is not intended for use by persons (including children) with reduced phys-
ical, sensory or mental capabilities, or a lack of experience or knowledge, unless they
are monitored or have been given detailed instructions concerning use of the device by
a person responsible for their safety.
Children must be supervised to ensure that they do not play with the device.
ƒIf hot or cold components of the product or installation pose a danger, it is the cus-
tomer’s responsibility to guard them against being touched.
ƒGuards protecting against touching moving components (such as the coupling)
must not be removed whilst the product is in operation.
ƒHazardous fluids (i.e. which are explosive, toxic or hot) which have leaked (e.g.
from the shaft seals) must be disposed of so that they pose no danger to persons
or to the environment. National statutory provisions must be respected.
ƒDanger from electrical current must be eliminated. Local directives or general dir-
ectives [e.g. IEC, VDE etc.] and instructions from local energy supply companies
must be respected.
2.5 Safety instructions for installation
and maintenance work The operator must ensure that all maintenance and installation work is carried out by
authorised and qualified personnel, who are sufficiently informed from their own de-
tailed study of the installation and operating instructions. Work on the product/unit
must only be carried out when at a standstill. The procedures described in the installa-
tion and operating instructions for deactivating the product/installation must always be
complied with.
Immediately on conclusion of the work, all safety and protective devices must be put
back in position and recommissioned.
2.6 Unauthorised modification of
components and use of unauthor-
ised spare parts
Unauthorised modification of components and use of unauthorised spare parts will im-
pair the safety of the product/personnel, and will render the manufacturer’s declara-
tions regarding safety void. Modifications to the product are only permissible following
consultation with the manufacturer.
Original spare parts and accessories authorised by the manufacturer ensure safety. The
use of other parts absolves the manufacturing company of any and all liability.
2.7 Improper use The operational reliability of the supplied product is only guaranteed for conventional
use in accordance with Chapter4 of the Installation and operating instructions. The
limit values must on no account fall below or exceed the values specified in the cata-
logue/data sheet.
3 Product information
3.1 Type key
Example: Medana CH3-LE.602-1/E/1/10T
Wilo Brand
Medana Multistage centrifugal pump
CCommercial series
HHorizontal pump
1Series level (1 = entry level, 3 = standard level, 5 = premium level)
LL = Long shaft
E = Electronic control
6Volume flow in m3/h
02 Number of impellers

Product information en
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE 11
Example: Medana CH3-LE.602-1/E/1/10T
11 = Pump housing in 1.4308 stainless steel + hydraulics in 1.4307 stainless steel
2 = Pump housing in 1.4409 stainless steel + hydraulics in 1.4404 stainless steel
EE = EPDM seal
V = FKM seal
A Medana CH3
1 = single-phase motor
3 = three-phase current motor
Medana CH1
A = Frequency 50Hz/ single-phase/ 230V
B = Frequency 60Hz/ single-phase/ 220V
C = Frequency 60Hz/ single-phase/ 230V
D = Frequency 50Hz/ three-phase/ 400V
E = Frequency 50Hz/ three-phase/ 230–400V
F = Frequency 60Hz/ three-phase/ 220–380V
G = Frequency 60Hz/ three-phase/ 265–460V
I = Frequency 60Hz/ three-phase/ 460V
10 Maximum pressure of the pump in bar
TT = Screwed connections
P = Victaulic connections
N = Connections with captive nut
3.2 Data table
Maximum utilisation pressure
Maximum operating pressure See pump type key on rating plate and paragraph 3.1
Maximum suction pressure 6bar
Notice: the suction pressure (Pinput) + the pressure at
zero delivery rate (Pzero delivery rate) must always be
lower than the maximum permitted operating pressure
(Pmax). Pinput +Pzero delivery rate≤ Pmax. Refer to
the pump rating plate for the maximum operating pres-
sure: Pmax.
Temperature range
Fluid temperature -20°C to +120°C with EPDM seals
-20°C to +90°C with VITON seals
Ambient temperature -15°C to +50°C
Electrical data
Motor protection rating See rating plate
Insulation class See rating plate
Frequency See rating plate
Voltage See rating plate
Motor efficiency See rating plate
Other characteristics
Humidity <90% without condensation
Altitude ≤1000m (>1000m on request)
Noise level
Motor power (kW) Frequency (Hz) Phase dB(A) at 1m, BEP tolerance
0–3dB(A)
0.37 50 3 54

en Transport and interim storage
12 WILO SE 02/2022
0.55 50 3 54
0.75 50 3 55
1.1 50 3 55
1.5 50 3 56
1.85 50 3 57
2.5 50 3 58
3 50 3 59
4.2 50 3 61
0.55 60 3 58
0.75 60 3 58
1.1 60 3 59
1.5 60 3 59
1.85 60 3 60
2.5 60 3 61
3 60 3 62
4.2 60 3 64
5.5 60 3 66
0.37 50 1 52
0.55 50 1 53
0.75 50 1 53
1.1 50 1 54
1.5 50 1 56
3.3 Scope of delivery ƒHigh-pressure multistage centrifugal pump
ƒInstallation and operating instructions for the pump
ƒInstallation and operating instructions for the frequency converter
3.4 Accessories Please consult Wilo catalogue for the list of accessories.
4 Transport and interim storage When receiving the product, check that it has not been damaged during transport. If
any damage is found, take all necessary measures with the carrier in the time provided.
CAUTION
Risk of material damage
If the delivered material is to be installed at a later date, store it in a dry place and
protect it from impacts and any external influences (humidity, frost etc.). Temperat-
ure range for transport and storage: -30°C to +60°C.
Handle the product with care so as not to damage it prior to installation.
5 Application This product has been designed to pump hot or cold water, water/glycol mixtures or
other low-viscosity fluids that are free of mineral oil, solid or abrasive substances, or
materials containing long fibres.
CAUTION
Risk of motor heating
A technical opinion is required prior to pumping fluid that is denser than water.
DANGER
Risk of explosion
Do not use this pump to convey flammable or explosive liquids.

Description and function en
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE 13
Fields of application:
Version with stainless steel housing:
MEDANA CH1-L
Distribution and boosting
Industrial systems
Cooling water circulation systems
Irrigation systems
6 Description and function
6.1 Description of the product See Fig.1
1. Suction port
2. Pressure port
3. Filler screw
4. Drainage screw
5. Stage casing
6. Impeller
7. Hydraulic shaft
8. Suction housing
9. Mechanical seal
10. Terminal box
11. Lantern
12. Condensate plugs
13. Variator
See Fig.3a
1. Valve on the suction side
2. Valve on the discharge side
3. Non-return valve
4. Filler screw
5. Drainage screw
6. Piping or clamp holders
7. Strainer
8. Tank
9. Mains water supply
10. Motor protection switch
11. Lifting hook
6.2 Product characteristics ƒMultistage centrifugal pump with horizontal axle (2to 7stages depending on the
model), non-self-priming.
ƒSuction/discharge ports with screwed connections. Axial suction, radial discharge
upwards.
ƒShaft sealing with standardised mechanical seal.
ƒIntegrated thermal motor protection (single-phase version), automatic reset.
ƒCondenser integrated into the terminal box (single-phase version).
ƒTo move only the pump, use straps that are securely fastened to the motor trans-
port lugs ≥4.2kw (Fig.8).
7 Installation and electrical con-
nection
All installation and electrical connection work must be carried out solely by author-
ised and qualified personnel, in accordance with applicable regulations.

en Installation and electrical connection
14 WILO SE 02/2022
WARNING
Physical injuries
The applicable regulations for the prevention of accidents must be complied with.
WARNING
Risk of electric shock
Hazards from electric current must be prevented.
7.1 Receipt of the product Unpack the pump and recycle or dispose of the packaging in an environmentally re-
sponsible manner.
7.2 Installation The pump must be installed in a dry, well-ventilated location free of frost on a flat, rigid
surface using the appropriate screws.
CAUTION
Risk of damaging the pump
The presence of foreign matter or impurities in the pump housing may affect the
functioning of the product.
It is recommended to perform any welding and soldering work before installing the
pump.
Rinse the circuit completely before installing and commissioning the pump.
ƒThe pump must be installed in a place easy to access for the purposes of inspection
or replacement.
ƒInstall the pump on a smooth floor.
ƒThe pump must be fixed in place using the 2holes on the bearing bracket (ØM8
screw) (Fig.2).
ƒEnsure there is a minimum distance between the motor fan and any surfaces
(Fig.4).
ƒFor heavy pumps, install a lifting hook (Fig.3a, pos.11) in line with the pump axis
to facilitate its disassembly.
ƒRemove the condensate plugs (Fig.1, pos.12) when the pump is in a condensing
environment. In this case, the motor protection class IP55 will no longer be guaran-
teed.
WARNING
Risk of accident due to hot surfaces!
The pump must be installed in such a way that no one can touch the hot surfaces of
the product when it is in operation.
WARNING
Risk of tipping
Ensure that the pump is secured to a flat, rigid surface.
CAUTION
Risk of foreign matter in the pump
Ensure that all blanking plugs are removed from the pump housing before installa-
tion.
NOTICE
Each pump may have been factory-tested to verify its hydraulic performance, and
water may be present in the product. For hygiene purposes, the pump should be
rinsed before use.

Installation and electrical connection en
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE 15
Install insulating material (cork or reinforced rubber) under the pump to avoid noise
pollution and vibrations being transmitted to the installation.
7.3 Mains connection ƒThe weight of the piping should not be borne by the pump (Fig.5).
ƒPermitted pump installation positions (Fig.9).
ƒWe recommend installing gate valves on the suction and pressure sides of the
pump.
ƒUse expansion joints to mitigate noise and vibration from the pump if required.
ƒThe pipe cross-section must be at least equal to the diameter of the suction port
on the pump housing.
ƒThe installation of a non-return valve in the discharge pipe is recommended to
protect the pump against pressure surges.
ƒIf connected directly to the public potable water mains, the suction pipe socket
must also be fitted with a non-return valve and a stop valve.
ƒIf connected indirectly via a tank, the suction pipe socket must be fitted with a
suction strainer to stop impurities from entering the pump, and a non-return valve.
7.4 Electrical connection
DANGER
Risk of electrocution
In case of a non-compliant electrical connection, there is a risk of electrocution.
■ Have the electrical connection established by an electrician approved by the local
energy supply company in accordance with local regulations.
■ Prior to the electrical connection, the pump must be voltage-free and protected
against unauthorised restart.
■ To ensure safe installation and operation, the pump must be earthed correctly
with the earth terminals of the power supply (Fig.6).
ƒVerify that the rated current, voltage and frequency used match the information on
the pump’s rating plate.
ƒThe pump must be connected to the power supply using a cable fitted with a
socket or a main switch.
ƒThe three-phase motors must be connected to an authorised protection system.
The setting rated current must match the value indicated on the motor’s sticker.
ƒSingle-phase motors are equipped as standard with thermal motor protection,
which stops the pump if the permissible winding temperature is exceeded and
starts it up again automatically once it has cooled down.
ƒThe connection cable must be placed in such a way that it never comes into con-
tact with the main sewer system and/or the pump housing and motor frame.
ƒThe pump/installation should be earthed in accordance with local regulations.
ƒAppropriate measures for protection against insulation malfunctions must be
taken. For example, the use of a residual-current device. The breaking capacities of
the overcurrent protection devices must be greater than the assumed short-circuit
current at the devices.
ƒThe power supply connection must comply with the wiring diagram (Fig.6).
WARNING
Risk of injuries and water penetration in the connection area
Observe the tightening torques (Fig.7)
Observe the diameter value of the cable gland wiring to ensure IP55 protection (see
Fig.7[E]):
M20 = min. Ø6 – max. Ø12
M25 = min. Ø13 – max. Ø18
7.5 Operation with a frequency con-
verter It is possible to adjust the speed of the pump using a frequency converter. The limit val-
ues for adjusting the speed are as follows:
40% rated ≤ n ≤ 100% rated. The installation and commissioning instructions for the
frequency converter must be followed when connecting it and starting operation. To
avoid overloading the motor winding, which could lead to damage and unwanted noise,
the frequency converter cannot produce voltage rise speed stages higher than 500V/μs
or voltage spikes U>650V.

en Commissioning
16 WILO SE 02/2022
To make such voltage rise speed stages possible, an LC filter (motor filter) should be in-
stalled between the frequency converter and the motor. The specifications for this filter
must be provided by the manufacturer of the frequency converter/ filter. Control
devices with a frequency converter delivered by Wilo have an integrated filter.
8 Commissioning
8.1 Filling and deaeration Check whether the water level in the tank and the inlet pressure are sufficient.
WARNING
Risk of infection
Our pumps may be factory-tested to verify their hydraulic performance. If some wa-
ter remains, the pump should be rinsed before use for hygiene reasons.
CAUTION
Risk of damage to the pump
Never run the pump dry. The pump must be filled before starting.
CAUTION
Risk of damage to the pump
Observe the tightening torques of the filler screw (Fig.1, pos.4) and drain plug
(Fig.1, pos.5).
Pump in horizontal position below the water line (Fig.3a)
Close the gate valves (pos.1+2).
Unscrew the filler screw (pos.4).
Slowly open the valve on the suction side (pos.1).
Close the filler screw again once the water has exited via the screw port (air removed)
(pos.4).
Open the valve on the suction side completely (pos.1).
Open the valve on the end pressure side (pos.2).
Pump in horizontal position in suction mode (Fig.3b)
NOTICE
Ensure that the suction pipe does not trap air at the transitions and bends.
It may take a long time for the pump and suction pipe to fill.
Close the gate valve (pos.2).
Open the gate valve (pos.1).
Unscrew the filler screw (pos.4).
Using a funnel inserted into the filling port, slowly and completely fill the pump and the
suction pipe. Close the filler screw once the air has escaped and the liquid is flowing in
the pump (pos.4).
After checking the deblocking function and the direction of rotation of the motor:
ƒBriefly start the motor with an impulse then wait for a few seconds to allow the air
to settle.
ƒSlightly unscrew the filler screw (pos.4) to remove the air. If a trickle of water does
not appear, remove this screw to fill the right water level in the pump. Put this
screw back in place before restarting.
ƒIf necessary, repeat this operation.
Pump in vertical position in inlet mode (Fig.3c)
Close the gate valves (pos.1+2).

Maintenance en
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE 17
Unscrew the filler screw (pos.4).
Slowly open the valve on the suction side (pos.1).
Close the filler screw again once the water has exited via the screw port (air removed)
(pos.4).
Open the valve on the suction side completely (pos.1).
Open the valve on the end pressure side (pos.2).
8.2 Starting
CAUTION
Risk of damaging the pump
The pump must not be operated at a zero flow rate flow (valve on the end pressure
side closed) for more than 10minutes.
We recommend maintaining a minimum discharge of 10% of rated discharge.
WARNING
Risk of injury
Depending on the operating conditions of the pump or the installation (the temper-
ature of the discharged liquid and the volume flow), the pump assembly including
the motor may become extremely hot. There is a real risk of burns when coming into
contact with the pump.
CAUTION
Direction of rotation
An incorrect direction of rotation will cause poor pump performance and may over-
load the motor.
Checking the direction of rotation (only for three-phase current motors)
By starting the pump up briefly, check whether the direction of rotation of the pump
matches the arrow on the pump’s rating plate. If the direction of rotation is incorrect,
swap 2phases in the pump’s terminal box.
NOTICE
Single-phase motors are intended to operate in the correct direction of rotation.
Open the valve on the end pressure side and stop the pump.
9 Maintenance All maintenance work must be carried out by authorised and qualified personnel!
WARNING
Risk of electric shock
Danger from electrical current must be eliminated. Ensure that the pump’s power
supply is switched off and secured against unauthorised reactivation before per-
forming any work on the electric system.
WARNING
Risk of burns
In case of high water temperatures and high system pressures, close the guard
valves upstream and downstream of the pump. First, allow pump to cool down.

en Faults, causes and remedies
18 WILO SE 02/2022
WARNING
Risk of injury
Depending on the operating conditions of the pump or the installation (the temper-
ature of the discharged liquid and the volume flow), the pump assembly including
the motor may become extremely hot. There is a real risk of burns when coming into
contact with the pump.
ƒNo special maintenance required during operation.
ƒPumps that are not being used during periods of frost should be drained to avoid
damage.
Close the gate valves, fully open the drainage and filler screws (Fig.1, pos.3 and 4)
and empty the pump.
CAUTION
Risk of damaging the pump
Observe the tightening torques of the filler screw (Fig.1, pos.4) and drain plug
(Fig.1, pos.5).
10 Faults, causes and remedies
WARNING
Risk of electric shock
Danger from electrical current must be eliminated. Ensure that the pump’s power
supply is switched off and secured against unauthorised reactivation before per-
forming any work on the electric system.
WARNING
Risk of burns
In case of high water temperatures and high system pressures, close the guard
valves upstream and downstream of the pump. First, allow pump to cool down.
WARNING
Risk of injury
Depending on the operating conditions of the pump or the installation (the temper-
ature of the discharged liquid and the volume flow), the pump assembly including
the motor may become extremely hot. There is a real risk of burns when coming into
contact with the pump.
Faults Causes Remedies
The pump is not functioning No electrical power supply Check fuses, switches and wiring
The motor protection device has cut off the
power
Eliminate any motor overload
The pump operates but does not
discharge any fluid
Wrong direction of rotation Swap 2phases in the power supply
The piping or parts of the pump are obstructed
by foreign matter
Check and clean the piping and the pump
Presence of air in the suction pipe Make the suction pipe air-tight
Suction pipe too narrow Install wider suction pipe
The pressure at the pump inlet is insufficient Review the installation conditions and recom-
mendations described in this manual
The pump discharges irregularly The suction pipe has a smaller diameter than
that of the pump
The suction pipe must have the same diameter
as the pump suction opening

Spare parts en
Installation and operating instructions Wilo-Medana CH1-L, Wilo-Medana CH3-LE 19
Faults Causes Remedies
The strainer and the suction pipe are partially
blocked
Dismantle and clean them
Incorrect choice of pump Install more powerful pumps
Wrong direction of rotation For the three-phase current version, swap
2phases in the power supply
Insufficient pressure The flow rate is too low, the suction pipe is
blocked
Clean the suction filter and the suction pipe
The valve is not sufficiently open Open the valve
The pump is obstructed by foreign matter Clean the pump
The pump is vibrating Foreign matter in the pump Remove all foreign matter
The pump is not firmly secured Tighten the anchor screws
The motor is overheating, the mo-
tor protection engages
Insufficient voltage Check the fusible cut-outs, the wiring and the
connections
Foreign matter present, bearing damaged Clean the pump
Get the pump repaired by customer service
Ambient temperature too high Provide cooling
If the fault cannot be resolved, please contact the Wilo customer service.
11 Spare parts All spare parts should be ordered directly from the Wilo customer service. To prevent
errors, always quote the data on the pump’s rating plate when making an order. The
spare parts catalogue is available at www.wilo.com
12 Disposal Information on the collection of used electrical and electronic products.
Proper disposal and appropriate recycling of this product prevents damage to the envi-
ronment and dangers to your personal health.
NOTICE
Disposal as domestic waste is forbidden!
In the European Union, this symbol can appear on the product, the packaging or the
accompanying documentation. It means that the electrical and electronic products
in question must not be disposed of along with domestic waste.
To ensure proper handling, recycling and disposal of the used products in question,
please note the following points:
ƒOnly hand over these products at designated, certified collecting points.
ƒObserve the locally applicable regulations! Please consult your local municipality,
the nearest waste disposal site, or the dealer who sold the product to you for in-
formation on proper disposal. For further information on recycling, go to
www.wilo-recycling.com.
Subject to change without prior notice.