Wilo Star Z NOVA T Domestic Hot Water-Circulator Pump


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Wilo Star Z NOVA T

This circulator is suitable only for drinking water.

Domestic hot water-circulator Wilo-Star-Z NOVA T (glandless pump-version) for single-family houses.

Pump for pipe installation, blocking-current proof synchronous motor with high starting torque.

Brass pump housing, Noryl impeller, ceramic shaft.

Power consumption 6 W.

Equipped with thermal insulation shell as standard, housing thread Rp ½.

Pump complete with ball shut-off and non-return valves with G1 thread, built-in time switch, temperature control and a routine for detecting and supporting thermal legionellae switching on the boiler side. 

Operating Data

Max. fluid temperature Tmax

95 °C

Min. fluid temperature Tmin

2 °C

Min. ambient temperature Tmin

2 °C

Max. ambient temperature Tmax

40 °C

Temperature range at max. ambient temperature +40 °C T


Maximum operating pressure PN

10 bar

Max. permitted total water hardness

3.57 mmol/l (20°dH)

Motor data

Interference emission

EN 61000-6-3

Interference immunity

EN 61000-6-2

Mains connection

1~230 V, 50 Hz

Power consumption P1 max

7 W

Max. speed nmax

3000 1/min

Rated current IN

0.05 A

Protection class motor


Threaded cable connection

1 x PG11



Pump housing







Carbon, synthetic resin-impregnated

Installation dimensions

Pipe connection on the suction side DNs

G 1

Pipe connection on the discharge side DNd

G 1

Port-to-port length L0

138 mm



  • 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 discharge 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