Wilo Wilo-Star-Z NOVA User manual

4 245 741-Ed.01 / 2021-02
Wilo-Star-Z NOVA
Pioneering for You
en Installation and operating instructions
fr Notice de montage et de mise en service
nl Inbouw- en bedieningsvoorschriften
es Instrucciones de instalación y funcionamiento
it Istruzioni di montaggio, uso e manutenzione
el  Οδηγίεςεγκατάστασηςκαιλειτουργίας
tr  Montajvekullanmakılavuzu
hu Beépítési és üzemeltetési utasítás
pl  Instrukcjamontażuiobsługi
cs  Návodkmontážiaobsluze
ru  Инструкцияпомонтажуиэксплуатации
uk  Iнструкціязмонтажутаексплуатації
lv  Uzstādīšanasunekspluatācijasinstrukcija
lt Montavimo ir naudojimo instrukcija
sk  Návodnamontážaobsluhu
sv Monterings- och skötselanvisning
 Asennus- ja käyttöohje
da Monterings- og driftsvejledning

Fig
Fig. 1a:
Fig. 1b:
Fig. 1c:
PE NL
Fig. 1d:
Fig. 1e:
Fig. 2:

en Installation and operating instructions 4
fr Notice de montage et de mise en service 16
nl Inbouw- en bedieningsvoorschriften 28
es Instrucciones de instalación y funcionamiento 40
it Istruzioni di montaggio, uso e manutenzione 52
el Οδηγίες εγκατάστασης και λειτουργίας 64
tr Montaj ve kullanma kılavuzu 76
hu Beépítési és üzemeltetési utasítás 88
pl Instrukcja montażu i obsługi 100
cs Návod k montáži a obsluze 112
ru Инструкция по монтажу и эксплуатации 124
uk Iнструкція з монтажу та експлуатації 136
lv Uzstādīšanas un ekspluatācijas instrukcija 148
lt Montavimo ir naudojimo instrukcija 160
sk Návod na montáž a obsluhu 172
sv Monterings- och skötselanvisning 184
fi Asennus- ja käyttöohje 196
da Monterings- og driftsvejledning 208

Overview
4WILO SE 02/2021
English
Installation and operating in-
1Overview
Turn the motor head or remove it
Page 10
Connections Page 7
Valves Page 9
Connecting
Page 11
Faults Page 14
Type key Page 7
Electrical connection Page 12
Safety Page 5
Principle of operation Page 9
Installation Page 10

Safety
Installation and operating instructions Wilo-Star-Z NOVA 5
English
2Safety
About these instructions • Read through these instructions completely
before installation. 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.
Safety information Important safety information is indicated as fol-
lows:
Danger: Indicates a danger to life due to
electrical current.
Warning: Indicates a possible danger to
life or injury.
Caution: Indicates possible risks to the
pump or other items.
Note: Highlights tips and information.

Safety
6WILO SE 02/2021
English
Qualification The pump may only be installed by qualified per-
sonnel. This product may not be commissioned or
operated by persons with insufficient account-
ability (including children) or who do not possess
the relevant specialist knowledge. Exceptions are
only permitted on appropriate instruction from
safety-responsible persons. The electrical con-
nection may only be established by a qualified
electrician.
Regulations The current versions of the following regulations
must be observed when installing the equipment:
• Accident prevention regulations
• DVGW worksheet W551 (in Germany)
• VDE 0700/Part 1
• Other local regulations (e.g. IEC, VDE, etc.)
Conversion, spare parts 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 origi-
nal spare parts.
Transport Unpack and check the pump and all accessories
upon receipt. Report any damage sustained in
transit immediately.
Dispatch the pump in the original packing only.
Electrical current There is a danger of an electric shock when work-
ing with electrical current. Therefore:
• Switch off the power before beginning work
on the pump and make sure that it cannot be
switched on again accidentally.
• Do not kink or nip the power cable or allow it
to come into contact with heat sources.
• The pump is protected against drips in
accordance with protection class IP 42. Pro-
tect the pump against water spray. Do not
immerse in water or other fluids.

Technical data
Installation and operating instructions Wilo-Star-Z NOVA 7
English
3 Technical data
3.1 Type key
3.2 Connections
Star-Z Series:
Standard secondary hot water circulation
pump, glandless pump
NOVA Type designation
A = with check valves
Star-Z NOVA
Screwed connection: 15 (Rp ½")
Star-Z NOVA A
Screwed connection: 15 (Rp ½") and check
valves with G1 thread

Technical data
8WILO SE 02/2021
English
3.3 Data
See name plate or Wilo catalogue for further
information.
3.4 Scope of delivery
1Pump
2 Thermal insulation shell
3Sealing rings
4Wilo-Connector
5 Installation and operating instructions
(not shown)
Star-Z NOVA, Star-Z NOVA A
Mains voltage 1 ~ 230 V / 50 Hz
Protection class 42
Nominal diameter
of connecting pipes R ½
Installation length 84 mm
(Type A: 138 mm)
Maximum permissible
operating pressure 10 bar (1000 kPa)
Water temperature at
max. ambient tempera-
ture of +40 °C +2 °C to +95 °C

Principle of operation
Installation and operating instructions Wilo-Star-Z NOVA 9
English
4 Principle of operation
4.1 Application
This circulator is suitable for drinking water only.
4.2 Functions
Valves The Star-Z NOVA A version is equipped with a
non-return valve (1) on the pressure side and
with a stop valve (2) on the suction side.
When exchanging the motor head (3), it is suffi-
cient to cut the power by unplugging the con-
nector (5) and to close the stop valve at the
rotating slot (4). The motor head can then be sim-
ply unscrewed Page 10.

Installation
10 WILO SE 02/2021
English
5 Installation
5.1 Mechanical installation
Installation site Provide a weatherproof, frost-free, dust-free and
well-ventilated room for the installation. Choose
an installation site that is easily accessible.
1. Prepare the installation site so that the pump
can be installed without being exposed to
mechanical stresses.
2. Choose the right installation position - only as
shown in (Fig. A). The arrow on the back of the
housing indicates the direction of flow.
Turn the motor head or
remove it
3. Release the union nut - unscrew it completely
if necessary.
4. Turn the motor head so that the Wilo-Con-
nector points downwards.
Danger: Before starting work, make sure
that the pump has been disconnected from the
power supply.
Caution: Dirt can cause the pump to fail.
Flush the pipe system before installation.
Note: In the case of the Star-Z NOVA A
version, the stop valve and non-return valve are
pre-installed. In the case of the Star-Z NOVA
version, these valves have to be installed addi-
tionally.
Caution: Do not damage the housing seal.
Replace damaged seals.
Caution: If the position is wrong, water
can penetrate and destroy the pump.

Installation
Installation and operating instructions Wilo-Star-Z NOVA 11
English
5. Tighten the union nut again.
Open the stop valve 6. Turn slot (1) with a screwdriver so that it is
parallel to the direction of flow (only in the
case of the Star-Z NOVA A version)
7. Fit the thermal insulation shell.
Connecting 8. Connect the pipework.
1
Note: To close, turn the slot so that it is
across the direction of flow.
Caution: The plastic parts of the motor
may not be heat-insulated in order to protect
the pump from overheating.
Caution: For the versions with stop and
non-return valves, these are already pre-
installed and sealed with a tightening torque of
15 Nm (hand-tight). Screwing with excessive
tightening torque destroys the valve screw con-
nection and the O ring.
When installing the valve, use a fixed spanner to
prevent twisting.

Installation
12 WILO SE 02/2021
English
5.2 Electrical connection
• Establish the electrical connection as follows:
Fig. 3a to 3e Page 2
• Open the WILO- Connector as follows:
Fig. 2 Page 2
5.3 Filling and venting
1. Fill the system.
2. The pump rotor space vents automatically
after a short time in operation. This may cause
noises. If necessary, switch off and on repeat-
edly to accelerate the venting. Dry running for
short periods will not harm the pump.
Danger: Only a qualified electrician is
allowed to work on the electrical connection.
Before establishing the connection, make sure
that the connecting cable is dead.

Maintenance
Installation and operating instructions Wilo-Star-Z NOVA 13
English
6Maintenance
Cleaning Clean the outside of the pump with a slightly
damp cloth only. Do not use detergents.
Replacing the motor head
Replacing the motor head Page 10.
Order the service motor from a specialist retailer.
Warning: When removing the motor head
or pump, hot fluid may spurt out under high
pressure. Allow the pump to cool down before-
hand.
Close the stop valves before removing the pump
Page 10.
Note: When the motor is removed and
running, noises and a change in rotation may
occur. This is normal for this situation.
Faultless operation can only be guaranteed
when the pump is operated in fluid.

Faults
14 WILO SE 02/2021
English
7Faults
Faults Causes Remedies
Pump does not
start. Interruption in the power
supply, short- circuit or
defective fuses.
Have the power supply
checked by a qualified
electrician.
Motor is blocked, e.g. by
deposits from the water
mains.
Have the pump removed
by a qualified technician
Page 10.
Check that the impeller
can move by turning it
and rinse out the dirt that
has accumulated.
Pump is making
noises. Motor scraping, e.g.
through deposits from
the water mains
Running dry, too little
water. Check the check valves, they must be fully open.
Air in the pump. Switch the pump on/off
5 times for 30 s in each
case.
Note: If you cannot remedy the fault,
contact a specialist retailer.

Disposal
Installation and operating instructions Wilo-Star-Z NOVA 15
English
8Disposal
Information on the
collection of used
electrical and electronic
products
Proper disposal and appropriate recycling of this
product prevents damage to the environment
and danger to your personal health.
To ensure proper handling, recycling and disposal
of the used products in question, please note the
following points:
• Only hand over these products at designated,
certified collection points.
• Observe the locally applicable regulations!
Please consult your local municipality, the near-
est waste disposal site, or the dealer who sold
the product to you for information on proper
disposal. Further recycling information at
www.wilo-recycling.com.
NOTE
Disposal in domestic waste is
forbidden!
In the European Union, this symbol may
appear on the product, the packaging or
the accompanying documentation. It
means that the electrical and electronic
products in question must not be dis-
posed of along with domestic waste.

Vue d'ensemble
16 WILO SE 02/2021
Français
Notice de montage et de mise en
1 Vue d'ensemble
Tourner ou retirer la tête du moteur
Page 22
Raccordements Page 19
Soupapes Page 21
Raccorder
Page 23
Pannes Page 26
Dénomination Page 19
Raccordement électrique Page 24
Sécurité Page 17
Mode de fonctionnement Page 21
Installation Page 22

Sécurité
Notice de montage et de mise en service Wilo-Star-Z NOVA 17
Français
2Sécurité
A propos de cette notice • Lire cette notice dans son intégralité avant
l'installation. Le non-respect de cette notice
peut provoquer des blessures graves ou des
dommages au niveau de la pompe.
• Transmettre la notice à l'utilisateur final après
le montage.
• Conserver la notice à proximité de la pompe.
Elle sert de référence en cas de problèmes
ultérieurs.
• Nous déclinons toute responsabilité en cas de
dommages dus au non-respect de cette
notice.
Consignes
d'avertissement
Les consignes importantes de sécurité sont
représentées comme suit :
Danger : Indique un danger de mort dû au
courant électrique.
Avertissement : Indique un risque poten-
tiel de mort ou de blessures.
Attention : Indique des dangers potentiels
pour la pompe ou d'autres objets.
Remarque : Donne des conseils et des
informations.

Sécurité
18 WILO SE 02/2021
Français
Qualification Le montage de la pompe doit être effectué uni-
quement par du personnel qualifié. Ce produit ne
doit pas être mis en marche ni être utilisé par des
personnes dont la responsabilité de leurs actes
est limitée (enfants compris) ou sans connais-
sances techniques correspondantes. Des excep-
tions sont permises uniquement en suivant les
instructions correspondantes des personnes res-
ponsables de la sécurité. Le branchement élec-
trique doit uniquement être effectué par un
électricien qualifié.
Prescriptions Respecter lors de l'installation les dernières pres-
criptions en vigueur :
• Prescriptions de prévention des accidents
• Fiche du DVGW W551 (en Allemagne)
• VDE 0700/Partie 1
• Autres prescriptions locales (p. ex. CEI, VDE
etc.)
Modification,
pièces de rechange
La pompe ne doit pas être modifiée ni transformée
d'un point de vue technique. Il est interdit d'ouvrir
le moteur de la pompe en retirant le couvercle en
plastique. Utiliser uniquement des pièces de
rechange d'origine.
Transport Dès réception de la pompe, déballer et contrôler
toutes les pièces des accessoires. Signaler immé-
diatement les dommages dus au transport.
Envoyer la pompe uniquement dans son embal-
lage d'origine.
Courant électrique L'utilisation d'électricité peut provoquer un choc
électrique. En conséquence :
• Couper le courant avant toute manipulation
avec la pompe et la sécuriser contre toute
remise sous tension.
• Ne pas plier ni coincer le câble électrique ou
éviter qu'il ne rentre en contact avec des
sources de chaleur.
• La pompe est protégée contre les gouttes
d'eau selon l'indice de protection IP 42. Proté-
ger la pompe contre les projections d'eau et
ne pas la plonger dans l'eau ou d'autres
liquides.

Caractéristiques techniques
Notice de montage et de mise en service Wilo-Star-Z NOVA 19
Français
3 Caractéristiques techniques
3.1 Dénomination
3.2 Raccordements
Star-Z Gamme :
Circulateur d'eau chaude sanitaire standard,
pompe à rotor noyé
NOVA Désignation du type
A = avec vannes d'arrêt
Star-Z NOVA
Raccord fileté : 15 (Rp ½")
Star-Z NOVA A
Raccord fileté : 15 (Rp ½") et vannes d'arrêt
avec filetage G1

Caractéristiques techniques
20 WILO SE 02/2021
Français
3.3 Données
Pour d'autres données, cf. la plaque signalétique
ou le catalogue Wilo.
3.4 Etendue de la fourniture
1Pompe
2 Coquille d'isolation thermique
3 Bagues d'étanchéité
4Wilo-Connector
5 Notice de montage et de mise en service
(non représentée)
Star-Z NOVA, Star-Z NOVA A
Tension d'alimentation monophasé 230 V/50 Hz
Indice de protection IP 42
Diamètre nominal des
tuyaux de raccordement R ½
Longueur de construction 84 mm
(type A : 138 mm)
Pression de service max.
autorisée 10 bars (1000 kPa)
Plage de température de
l'eau à température
ambiante max. +40 °C +2 °C à +95 °C