Circulating Pumps CP50 User manual

en Installation and operating instructions
de Einbau- und Betriebsanleitung
fr Notice de montage et de mise en service
it Istruzioni di montaggio, uso e manutenzione
sv Monterings- och skötselanvisning
cs Návod k montáži a obsluze
CP50, CP60
4 172 332-Ed.01/2012-07

Fig. 1:
Fig. 2a: Fig. 2b:
H max
H
H min
Hs
Q
Hs
1
/
2
max
H
min
2
1
3
Q

Fig. 3:
Fig. 4a: Fig. 4b:
PE NL

Fig. 4c: Fig. 4d:
Fig. 4e: Fig. 5:

en Installation and operating instructions 3
de Einbau- und Betriebsanleitung 14
fr Notice de montage et de mise en service 26
it Istruzioni di montaggio, uso e manutenzione 38
sv Monterings- och skötselanvisning 51
cs Návod k montáži a obsluze 62

Installation and operating instructions 3
English
Installation and operating instructions
1 Safety
1.1 About these instructions
Read through these instructions completely before installa-
tion. Non-observance of these instructions can result in
injury to persons and damage to the pump/unit.
Once installation work is complete, pass the instructions on
to the end user.
Keep the instructions near the pump. They can be used as
a reference if problems occur later.
We accept no liability for damages resulting from failure to
follow these instructions.
1.2 Safety information
Important safety information is indicated as follows:
DANGER: Indicates a danger to life due to electrical cur-
rent.
WARNING: Indicates a possible danger to life or injury.
CAUTION: Indicates possible risks to the pump or other
items.
NOTE: Highlights tips and information.
1.3 Qualification
The pump may only be installed by qualified personnel.
This product may not be commissioned or operated by per-
sons with insufficient accountability (including children) or
who do not possess the relevant specialist knowledge.
Exceptions are only permitted on appropriate instruction
from safety-responsible persons. The electrical connection
may only be established by a qualified electrician.

English
44172332-Ed.01 (2012/07)
1.4 Regulations
The current versions of the following regulations must be
observed during installation:
• Accident prevention regulations
• VDE 0370/Part 1
• Other local regulations (e.g. IEC, VDE, etc.)
1.5 Conversion and spare parts
Unauthorised modification and manufacture of spare parts
will impair the safety of the product/personnel and will make
void the manufacturer's declarations regarding safety.
The pump must not be technically modified or converted.
It is not permitted to open the pump motor by removing the
plastic lid. Only use original spare parts.
1.6 Transport/storage
Unpack and check the pump and all accessories upon
receipt. Report any damage sustained in transit immedi-
ately. Ship the pump in the original packing only.
The pump is to be protected against moisture and mechan-
ical damage and must not be exposed to temperatures out-
side the range –10°C to +50°C.
1.7 Electric current
There is a danger of an electric shock when working with
electrical current. Therefore:
• Switch off the power before beginning work on the pump
and make sure that it cannot be switched on again.
• Do not kink or jam the power cable or allow it to come into
contact with heat sources.
• The pump is protected against drips in accordance with IP
protection class (see rating plate). Protect the pump against
water spray. Do not immerse in water or other fluids.

Installation and operating instructions 5
English
2 Technical data
2.1 Data
*Reference value for the most efficient circulation pumps: EEI 0.20
2.2 Scope of delivery
•Pump
• Sealing rings
• Plug included
• Installation and operating instructions
3 Description and function
3.1 Intended use
The circulation pumps in this series are designed for warm
water heating systems and similar systems with constantly
changing flow volumes. Approved fluids are heating water
in accordance with VDI 2035, water/glycol mixture at a mix-
ing ratio of 1:1. If glycol is added, the delivery data of the
pump must be corrected according to the higher viscosity,
depending on the mixing ratio percentage.
CP50, CP60
Connection voltage 1 ~ 230 V ±10%, 50/60 Hz
Temperature class TF 95
Protection class IP See rating plate
Energy Efficiency Index EEI *See rating plate
Nominal connection diameter
(threaded connection)
DN 25 (Rp 1)
Water temperatures at max. ambi-
ent temperature of +40 °C
–10 °C to +95 °C
Max. ambient temperature –10 °C to +40 °C
Max. operating pressure 6 bar (600 kPa)
Minimum inlet pressure at +95 °C 0.3 bar (30 kPa)

English
64172332-Ed.01 (2012/07)
Intended use of the pump/installation also includes follow-
ing these instructions.
Any other use is not regarded as intended use.
3.2 Product description
The pump (Fig. 1/1) consists of a hydraulic system, a glan-
dless pump motor with a permanent magnet rotor, and an
electronic control module with an integrated frequency con-
verter.
The control module contains an operating knob for setting
the control mode and an LED (Fig. 1/2) for displaying run
and fault signals.
3.3 Functions
All functions can be set, activated or deactivated using the
operating knob.
If the LED is green, mains voltage is applied and the pump
is in operation. If the LED is flashing, the pump is running
outside its normal parameters or is out of operation due to
a fault (see chapter 6, Maintenance / fault).
Control modes
Variable differential pressure (p-v):
The differential-pressure setpoint H is increased linearly
over the permitted volume flow range between ½H and H
(Fig. 2a). The differential pressure generated by the pump
is adjusted to the corresponding differential-pressure set-
point.
3 speed stages:
The pump runs uncontrolled in three prescribed fixed speed
stages. (Fig. 2b).

Installation and operating instructions 7
English
4 Installation and electrical connection
4.1 Installation
DANGER: Before starting work, make sure that the
pump has been disconnected from the power supply.
Installation site
• Provide a weatherproof, frost-free, dust-free and well-venti-
lated room for the installation.
Choose an installation site that is easily accessible.
• Prepare the installation site so that the pump can be
installed without being exposed to mechanical stresses. If
need be, support or secure piping on both side of the pump.
NOTE: Provide check valves upstream and downstream of
the pump to facilitate a possible pump replacement. Per-
form installation so that leaking water cannot drip onto the
control module. To do this, align the upper gate valve later-
ally, if need be.
• Complete all welding and soldering work near the pump
prior to the installation of the pump.
CAUTION:
Dirt can cause pump failure. Flush the pipe
system before installation.
• Choose the correct installation position with horizontal
pump motor - only as shown in (Fig. 3). Direction arrows on
the pump housing indicate the direction of flow.
• If heat insulation work is necessary, only the pump housing
may be insulated. The pump motor, module and the con-
densate-drain openings must remain uncovered.

English
84172332-Ed.01 (2012/07)
Turn motor head)
If the installation position of the module is changed, the
motor housing has to be turned as follows:
• Loosen the internal hexagon screws
• Turn the motor housing, including control module
NOTE: Generally turn the motor head before the system is
filled. When turning the motor head in an installation which
is already filled, do not pull the motor head out of the pump
housing. Turn the motor head with a small amount of pres-
sure on the motor unit so that no water can come out of the
pump.
CAUTION: Do not damage the housing seal.
Replace damaged seals.
• Turn the motor head in such a way that the plug corre-
sponds to the permitted installation position (Fig. 3).
CAUTION: If the position is wrong, water can penetrate
and destroy the pump.
• Turn in the internal hexagon screws.
4.2 Electrical connection
DANGER:
Work on the electrical connection may only
be performed by a qualified electrician in accordance
with national and local regulations.
Before establishing the connection, make sure that the
connecting cable is dead.
• Mains voltage and current type have to correspond to the
rating plate specifications.
• Connect the plug (Fig. 4a to 4e).
• Mains connection: L, N, PE.
• Max. back-up fuse: 10 A, slow.

Installation and operating instructions 9
English
• Earth the pump according to the regulations.
Dismantle the plug in accordance with Fig. 5. A screwdriver
is needed for this.
• The electrical connection is to be established via a fixed
connection line equipped with a connector device or an all-
pole switch with a contact opening width of at least 3 mm.
• To ensure drip protection and strain relief at the PG
screwed connection, a connected load with an adequate
outer diameter is necessary (e.g. H05VV-F3G1.5 or
AVMH-3x1.5).
• When pumps are used in systems with water temperatures
above 90°C, a suitably heat-resistant connected load is
installed.
• The connected load is to be placed in such a way that it can
under no circumstances come into contact with the pipe
and/or the pump and motor housing.
• The switching of the pump via triacs/solid-state relays is to
be checked on an individual basis.
5 Commissioning/operation
WARNING: Depending on the pump or system operat-
ing conditions (fluid temperature), the entire pump can
become very hot. Touching the pump can cause burns!
Commissioning by qualified personnel only!
5.1 Operation
The pump is operated using the operating knob.
Turn
Selection of the control mode and setting of the delivery
head or speed stage.

English
10 4172332-Ed.01 (2012/07)
5.2 Filling and bleeding
• Properly fill the system.
• The pump rotor space bleeds automatically after a short
time in operation. This may cause noises. If necessary,
switch off and on repeatedly to accelerate the venting.
Dry running for short periods will not harm the pump.
5.3 Adjusting the pump
By turning the knob, the control mode symbol is selected
and the desired delivery head or speed stage is set.
Selection of the control mode
Variable differential pressure (p-v): also see Fig. 2a
The pump for the control mode p-v is set on the left of the
middle position.
3 speed stages: also see Fig. 2b
The pump is set for three speed stages on the right of the
middle position.
NOTE: If a standard heating pump is replaced by this high-
efficiency pump, the knob can be set (as a reference point
for setting the pump setpoint) on the first, second or third
pump curve (c1, c2, c3) on the scale for three speed stages.
Setting of the delivery head/speed stage
If the knob is turned from the middle position to the left or
to the right, the set setpoint or the selected speed stage
increases. If the knob is turned back again to the middle
position, the set setpoint or the selected speed stage is
reduced.
When the knob is turned in the p-v control mode, the set-
tings correspond to the following setpoints:

Installation and operating instructions 11
English
In 3 speed stage mode, the settings are c1, c2 or c3 for the
relevant pump curve.
NOTE: When the knob is turned to the middle position, the
pump runs at minimum speed.
Factory setting: p-v, ½ Hmax
NOTE: All settings and displays are retained if the mains
supply is interrupted.
6 Maintenance/faults
DANGER: Before starting any maintenance and repair
work, disconnect the pump from the power supply, and
make sure it cannot be switched back on by unauthor-
ised persons. Damage to the connection cable should
always be repaired by a qualified electrician. Have faults
remedied by qualified skilled personnel only!
WARNING: Depending on the pump or system operating
conditions (fluid temperature), the entire pump can
become very hot. Touching the pump can cause burns!
When removing the motor head or pump, hot fluid may
spurt out under high pressure. Allow the pump to cool
down beforehand.
Close the stop valves before removing the pump.
Inside the machine there is always a strong magnetic
field that can cause injury and damage to property in the
event of incorrect dismantling.
Setting Delivery head (m)
min 0.5
med ½ Hmax
max Hmax (nominal delivery head at Q = 0 m3/h)

English
12 4172332-Ed.01 (2012/07)
• It is only permitted to have the rotor removed from the
motor housing by qualified personnel.
• If the unit consisting of impeller, bearing shield and
rotor is pulled out of the motor, persons with medical
aids, such as cardiac pacemakers, insulin pumps, hear-
ing aids, implants or similar are at risk. Death, severe
injury and damage to property may be the result. For
such persons, a professional medical assessment is
always necessary.
In assembled condition, the rotor's magnetic field is guided
in the motor's iron core. There is therefore no harmful mag-
netic field outside the machine.
After successful maintenance and repair work, install and
connect the pump according to the "Installation and electri-
cal connection" chapter. Switch on the pump according to
the "Commissioning" chapter.
Fault Cause Remedy
Pump is not run-
ning although the
power supply is
switched on.
Electrical fuse
defective. Check fuses.
Pump has no volt-
age. Restore power after inter- ruption.
Pump is making
noises. Cavitation due to insufficient suction
pressure.
Increase the system suction
pressure within the permis-
sible range.
Check the delivery head
setting and set to lower
head if necessary.
Building does not
get warm. Thermal output of the heating surfaces
is too low.
Increase setpoint (see 5.3).
Set control mode to three
speed stages
LED flashing Pump malfunction Contact specialist techni-
cian

Installation and operating instructions 13
English
7 Spare parts
Original spare parts and accessories authorised by the
manufacturer ensure safety. The use of other parts will
absolve us of liability for consequential events.
The ordering of original spare parts is done by the local spe-
cialist retailer.
To avoid queries and incorrect orders, keep the rating plate
information at hand.
8 Disposal
Damage to the environment and risks to personal health
are avoided by the proper disposal and appropriate recy-
cling of this product.
• Use public or private disposal organisations when dispos-
ing of the entire product or part of the product.
• For more information on proper disposal, please contact
your local council or waste disposal office or the supplier
from whom you obtained the product.
Subject to change without prior notice!

Deutsch
14 4172332-Ed.01 (2012/07)
Einbau- und Betriebsanleitung
1Sicherheit
1.1 Über diese Anleitung
Diese Anleitung vor der Installation vollständig durchlesen.
Die Nichtbeachtung dieser Anleitung kann zu schweren
Verletzungen oder Schäden an der Pumpe führen.
Nach der Installation die Anleitung an den Endnutzer wei-
tergeben.
Die Anleitung in der Nähe der Pumpe aufbewahren. Sie
dient als Referenz bei späteren Problemen.
Für Schäden aufgrund der Nichtbeachtung dieser Anlei-
tung übernehmen wir keine Haftung
1.2 Warnhinweise
Wichtige Hinweise für die Sicherheit sind wie folgt gekenn-
zeichnet:
GEFAHR: Weist auf Lebensgefahr durch elektrischen
Strom hin.
WARNUNG: Weist auf mögliche Lebens- oder Verlet-
zungsgefahr hin.
VORSICHT: Weist auf mögliche Gefährdungen für die
Pumpe oder andere Gegenstände hin.
HINWEIS: Hebt Tipps und Informationen hervor.
1.3 Qualifikation
Die Installation der Pumpe darf nur durch qualifiziertes
Fachpersonal erfolgen. Dieses Produkt darf nicht durch
Personen mit eingeschränkter Zurechnungsfähigkeit (ein-
schließlich Kindern) oder ohne entsprechendes Fachwis-
sen in Betrieb genommen oder bedient werden.
Ausnahmen sind nur durch entsprechende Anweisung

Einbau- und Betriebsanleitung 15
Deutsch
sicherheitsverantwortlicher Personen zulässig. Der Elekt-
roanschluss darf nur durch eine Elektrofachkraft vorgenom-
men werden.
1.4 Vorschriften
Bei der Installation die folgenden Vorschriften in aktueller
Fassung beachten:
• Unfallverhütungsvorschriften
• VDE 0370/Teil1
• weitere lokale Vorschriften (z. B. IEC, VDE etc.)
1.5 Umbau und Ersatzteile
Eigenmächtiger Umbau und Ersatzteilherstellung gefähr-
den die Sicherheit des Produktes/Personals und setzen die
vom Hersteller abgegebenen Erklärungen zur Sicherheit
außer Kraft. Die Pumpe darf technisch nicht verändert oder
umgebaut werden. Es ist nicht zulässig, den Pumpenmotor
durch Entfernen des Plastikdeckels zu öffnen. Nur Origina-
lersatzteile verwenden.
1.6 Transport/Lagerung
Bei Erhalt die Pumpe und alle Zubehörteile auspacken und
überprüfen. Transportschäden sofort melden. Die Pumpe
ausschließlich in der Originalverpackung versenden.
Die Pumpe ist gegen Feuchtigkeit und mechanische
Beschädigung zu schützen und darf keinen Temperaturen
außerhalb des Bereiches von –10°C bis +50°C ausgesetzt
werden.
1.7 Elektrischer Strom
Beim Umgang mit elektrischem Strom besteht die Gefahr
eines elektrischen Schlags, deshalb:
• Vor Beginn von Arbeiten an der Pumpe den Strom abschal-
ten und gegen Wiedereinschalten sichern.

Deutsch
16 4172332-Ed.01 (2012/07)
• Stromkabel nicht knicken, einklemmen oder mit Hitzequel-
len in Berührung kommen lassen.
• Die Pumpe ist nach IP-Schutzart (siehe Typenschild)
gegen Tropfwasser geschützt. Die Pumpe vor Spritzwasser
schützen, nicht in Wasser oder andere Flüssigkeiten ein-
tauchen.
2 Technische Daten
2.1 Daten
*Referenzwert für die effizientesten Umwälzpumpen: EEI 0,20
2.2 Lieferumfang
• Pumpe
•Dichtringe
• Stecker beiliegend
• Einbau- und Betriebsanleitung
CP50, CP60
Anschlussspannung 1 ~ 230 V ±10%, 50/60 Hz
Temperaturklasse TF 95
Schutzart IP siehe Typenschild
Energieeffizienzindex EEI *siehe Typenschild
Anschlussnennweite
(Verschraubungsanschluss)
DN 25 (Rp 1)
Wassertemperaturen bei max.
Umgebungstemperatur +40 °C
–10 °C bis +95 °C
max. Umgebungstemperatur –10 °C bis +40 °C
max. Betriebsdruck 6 bar (600 kPa)
Mindest-Zulaufdruck bei +95 °C 0,3 bar (30 kPa)