Wilo-Star-Z NOVA | Wilo
Your advantages
Wilo-Star-Z NOVA T

Your advantages

  • High degree of hygiene safety thanks to proven technology
  • Improved energy efficiency due to the adapted motor technology with a power consumption of only 3 – 6 watts and thermal insulation shell as standard
  • Quick, easy installation and replacement of common pump types thanks to the flexible service motor and Wilo-Connector
  • The “T” version offers the highest degree of hygiene safety, thanks to the integrated time switch, thermostat and automatic thermal disinfection detection. The Green Button Technology and an intuitive user interface with an LCD display make the “T” version extremely user-friendly

The Star-Z NOVA series:

Wilo-Star-Z NOVA T:

High ease of use for a hygienic safety domestic hot water circulation.

The circulator pump for drinking water Wilo-Star-Z NOVA T provides individual setting options equally high hygienic safety, lower power consumption and high ease of use in a new product design.

Your advantages:

- High hygienic safety thanks to proven technology with stop valve, automatic thermal disinfection detection, integrated timer and thermostat

- Optimised energy efficiency owing improved motor technology with power consumption of only 6 Watt

- High operating convenience due to Green-Button- Technology, intuitive user interface with known symbols and LC display

- Quick and easy installation thanks to stop valve and Wilo-Connector

- New design with thermal insulation shell as standard

Product information
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Wilo-Star-Z NOVA T_Feature_2_EN
Wilo-Star-Z NOVA T_Feature_3_EN
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Series description
Wilo-Star-Z NOVA


Glandless circulator with screwed connection and blocking-current proof synchronous motor


Domestic hot water circulation systems for building services and industry.


  • Quick electrical connection with Wilo-Connector
  • Integrated ball shut-off valve on the suction side (Star-Z NOVA A, T)
  • Integrated non-return valve on the pressure side (Star-Z NOVA A, T)
  • Blocking-current proof motor
  • Thermal insulation as standard
  • Star-Z NOVA T functions:
    • Green Button Technology
    • LCD display for indication of pump data and error codes
    • Time switching function for programming of 3 switch-on or switch-off times
    • Temperature control for maintaining a constant return temperature difference in the domestic hot water circulation system
    • Thermal disinfection routine (detecting and supporting the thermal disinfection of the domestic hot water storage tank)



Wilo-Star-Z NOVA


Domestic hot water circulator, glandless pump


Type designation


with ball shut-off valve and non-return valve


with ball shut-off valve, non-return valve, time switch, thermostat and thermal disinfection detection

Technical data

  • Fluid temperature: Potable water, max.+95 °C
  • Mains connection, 1~230 V, 50 Hz
  • Protection class IP42
  • Nominal diameter Rp ½
  • Max. operating pressure 10 bar


  • Pump housing: Brass
  • Impeller: Plastic
  • Shaft: ceramic
  • Bearing: Carbon, synthetic resin-impregnated

Delivery state

  • Pump
  • Thermal insulation
  • Wilo-Connector
  • Gaskets (Star-Z NOVA A, T)
  • Installation and operating instructions

Installation and operating instructions

Wilo-Star-Z NOVA

Article Number 4245741
Edition 2021-02
Page format 105.1 x 148.2 mm
Number of pages 229
PDF (18 MB)

Wilo-Star-Z NOVA T

Article Number 4245740
Edition 2021-05
Page format 105.1 x 148.2 mm
Number of pages 340
PDF (24 MB)

General overview (Documents)

General overview 2019 International version

Article Number 2200591
Edition 2018
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (40 MB)

General overview 2021 International version

Edition 2020
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (10 MB)

Certificate REACH (Documents)

REACH regulation

Edition 2020-08
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (158 KB)
Product list
Number of results: 3
Product descriptionPump connectionPort-to-port length L0Maximum operating pressure PNMains connectionGross weight, approx. mPieces per palletArticle number
Rp ½
84 mm
10 bar
1~230 V, 50 Hz
0.9 kg
G 1
138 mm
10 bar
1~230 V, 50 Hz
1.1 kg
G 1
138 mm
10 bar
1~230 V, 50 Hz
1.6 kg