NovaDrive

Electro-thermal actuators in the operating mode normally open and normally closed for heating circuit manifolds and radiator valves.

Description

NovaDrive NC/NO actuators in the new, attractive appearance used in conjunction with room thermostats, time switches and building automation systems offer an efficient means of controlling temperatures in heating and cooling systems to suit individual requirements.
Thanks to the operating mode NO (normally open) and NC (normally closed) as well as the quick-locking, large surface bayonet connection, the actuators can be used in a wide range of applications in all HVAC systems.
These actuators can help eliminate energy wastage in heating as well as in cooling and offer the ideal solution for energy control in buildings with irregular occupancy levels.
Typical installations include apartments, offices, schools, hotels etc.
The standard valve position indicators integrated into the actuators control the system functions during the assembly, commissioning and monitoring stages.

Advantages

  • Operating mode NO normally open and NC normally closed
  • Valve position visually indicated and tangible
  • Bayonet connection audibly engaged with click
  • Attractive appearance
  • Low power input
  • Silent operation
  • Available to fit most valve bodies
  • Connection cable, pluggable

Functions

An electrical resistance heats an expansion element. Any deviation from the nominal room temperature value causes the actuator to transmit an appropriate stroke movement to the valve.
The thermostat and actuator operate according to the «ON  / OFF» principle. The variable, rhythmic opening and closing, depending on the heat demand, also produces an almost continuous control characteristic.
In the without current state, the valve is open with the type NO and closed with the type NC.

Technical Data

General

  • Versions:
    • Normally closed NC
    • Normally open NO
  • Ambient temperature: 0 ... 50° C
  • Opening /closing time: approx. 3 min.
  • Nominal stroke: 4 mm
  • Nominal closing force 90 N
  • Protection mode IP 40
  • Protection class II

Electrical specifications

  • Rated voltage (AC or DC): 24 V or 230 V
  • Permissible voltage deviation: ±10%
  • Operating efficiency: 1.8 W
  • Inrush current:
    • 24V: 0.2 A for max. 1 min;
    • 230V: 0.6 A for max. 100 ms
  • Recommended fuse protection: 0.35 A time delay, according to DIN 41662
  • Connecting cable length 1 m

Building categories

For installations in the heating and cooling area:

  • Apartment blocks, housing estates, multiple dwelling units
  • Residential care facilities, hospitals
  • Administration and service buildings
  • Hotels and restaurants, industrial kitchens
  • School buildings and sports facilities
  • Commercial and industrial buildings

Certificates

  • CE conformity symbol
  • The technical data conforms with the respective EN standards

Type Overview

NovaDrive NC 230 V

Electro-thermal actuator, function NC (Normally Closed)
Order no. to fit valve/manifold from Fixture
257.2854.000 Beulco (old version up to approx. March 05) M30 x 1
257.2855.000 TacoSys / Heimeier / Strawa / Empur Messing / Oventrop / Delphistherm / Emmeti / Schlösser / Beulco / AC-FIX / Stramax / Roth / IVR M30 x 1,5
257.2858.000 Herz (RV 57) M28 x 1,5
257.2862.000 MNG / Cazzaniga / SBK / Empur-Edelstahl / SKV-Ventil frontal M30 x 1.5
257.2864.000 Giacomini Adapter
257.2880.000 Viega M30 x 1,5

NovaDrive NO 230 V

Electro-thermal actuator, function NO (Normally Open)
Order no. to fit valve/manifold from Fixture
257.2554.000 Beulco (old version up to approx. March 05) M30 x 1
257.2555.000 TacoSys / Heimeier / Strawa / Empur Messing / Oventrop / Delphistherm / Emmeti / Schlösser / Beulco / AC-FIX / Stramax / Roth / IVR M30 x 1,5
257.2558.000 Herz (RV 57) M28 x 1,5
257.2562.000 MNG / Cazzaniga / SBK / Empur-Edelstahl / SKV-Ventil frontal M30 x 1,5
257.2564.000 Giacomini Adapter
257.2580.000 Viega M30 x 1,5

NovaDrive NC 24 V

Electro-thermal actuator, function NC (Normally Closed)
Order no. to fit valve/manifold from Fixture
257.1854.000 Beulco (old version up to approx. March 05) M30 x 1
257.1855.000 TacoSys / Heimeier / Strawa / Empur Messing / Oventrop / Delphistherm / Emmeti / Schlösser / Beulco / AC-FIX / Stramax / Roth / IVR M30 x 1,5
257.1858.000 Herz (RV 57) M28 x 1,5
257.1862.000 MNG / Cazzaniga / SBK / Empur-Edelstahl / SKV-Ventil frontal M30 x 1.5
257.1864.000 Giacomini Adapter
257.1880.000 Viega M30 x 1,5

NovaDrive NO 24 V

Electro-thermal actuator, function NO (Normally Open)
Order no. to fit valve/manifold from Fixture
257.1554.000 Beulco (old version up to approx. March 05) M30 x 1
257.1555.000 TacoSys / Heimeier / Strawa / Empur Messing / Oventrop / Delphistherm / Emmeti / Schlösser / Beulco / AC-FIX / Stramax / Roth / IVR M30 x 1,5
257.1558.000 Herz (RV 57) M28 x 1,5
257.1562.000 MNG / Cazzaniga / SBK / Empur-Edelstahl / SKV-Ventil frontal M30 x 1,5
257.1564.000 Giacomini Adapter
257.1580.000 Viega M30 x 1,5