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Home / Water Underfloor Heating / Accessories / 4 Wire 24v Underfloor Heating Actuator
4 Wire 24v Underfloor Heating Actuator
  • Description

    This precision thermal actuator for underfloor heating systems monitors and regulates room temperatures by auto-opening/closing port valves based on thermostat inputs, providing precise underfloor heating temperature regulation.

    It integrates seamlessly with underfloor heating manifolds, thermostatic valve bodies, and three-way valves in water-based radiant floor heating setups, ensuring optimal hydronic flow and energy-efficient performance in zoned home heating systems.

    Key Features and Benefits

    • Normally Closed Underfloor Heating Thermal Actuator for Secure Control: Offers normally closed operation for energy-efficient control in underfloor heating systems with manifold valves, preventing flow until thermostat activation to enhance radiant floor heating safety in multi-zone installations.
    • M30 Thread Compatibility for Underfloor Heating Manifolds and Valves: Universal M30 x 1.5 thread fits most modern underfloor heating manifolds, thermostatic valve bodies, and three-way valves—perfect for retrofits in residential or commercial radiant heating applications.
    • 3mm Stroke Length Thermal Actuator for Precise Valve Positioning: Provides 3mm stroke for accurate valve positioning and responsive temperature regulation in underfloor heating circuits, boosting comfort in electric or water underfloor heating setups.
    • Low 2W Power Consumption Underfloor Heating Actuator for Energy Savings: Efficient 2W draw cuts costs, ideal for 24V low-voltage underfloor heating systems in eco-friendly residential and commercial radiant floor heating buildings.
    • 4-Wire Configuration Thermal Actuator Wiring for Easy Integration: Standard 4-wire setup eases thermostat connections in multi-zone underfloor heating setups, avoiding wiring issues in control panels or manifold replacements.
    • Tool-Free Installation Underfloor Heating Actuator for Quick Setup: No-tools mounting speeds setup on M30-threaded underfloor heating manifolds, minimizing downtime for DIY or pro radiant heating upgrades.
    • Silent Operation Compact Thermal Actuator Design for Discreet Use: Whisper-quiet and compact for discreet fit in underfloor heating control panels, ensuring silent operation in homes or offices.
    • CE Marked Reliable Underfloor Heating Thermal Actuator for Longevity: CE-certified for safety and durability, delivering interruption-free service in radiant underfloor heating to extend system life and save energy.
  • Manuals

    Mounting onto the manifold

    1. Remove the isolation cap on the return manifold
    2. Position the actuator onto the port value
    3. Tighten the ring nut by hand- do NOT use a spanner or similar tool.
    4. Connect the electrical wiring to complete.

     

     

    Function of Normally Closed Version (NC)

    • When applying the operating voltage, the expansion system of the actuator will be heated. After passing the dead time a uniform procedure will follow.
    • When the voltage supply is cut off, the actuator will automatically close after passing the dead time due to calling of the expansion system.

    Note: in case of any functional testing, be aware of the dead time behaviour and take this into consideration. The opening and closing ties will depend upon the ambient temperature.

  • Specifications

    4 Wire Actuator Datasheet

    Technical Data
    Action ON/OFF
    Power supply 230v/AC, 25v/DC (+10%/-15%)
    Frequency 50 – 60 Hz
    Power consumption (normal operation) 2W
    Peak starting current 0.20 A x 0.5 sec (230V) 0.25 A x 60 sec (24V)
    Initial opening (NC) time (power ON) 230V 75s
    Final opening (NC) time (power ON) 6 mins
    Initial opening (NC) time (power ON) 24V 3 mins
    Final opening (NC) time (power ON) 6 mins
    Actuator stroke max 4.0 mm
    Valve stroke 3 mm
    Protection class Ip54 to En60529
    Electrical Protection class II
    Safety (contamination level) 2
    Cable length 1m
    Operation temperature limit 0 to 50°C
    Storage temperature limit -25 to 60°C
    Fluid temperature limit Max 110 °C
    Nominal closing force (power OFF) (Closed type) 100 N (±10%)
    Auxiliary microswitch (4-pole model) max 700 mA – 250 V ~ (a.c)
    Cover Pa66 +30 F.V. self estinguished
    Valve connection Threaded ring nut M30 x 1.5
  • Thermostats

    Action
    ON/OFF
    Power supply
    24 / 230 VAC/DC (+10% / -15%)
    Frequency
    50 ÷ 60 Hz
    Power consumption (normal operation)
    2W
    Peak starting current
    0.20 A x 0.5 sec (230V) 0.25 A x 60 sec (24V)
    Initial opening (NC) time (power ON) 230V
    75 s
    Final opening (NC) time (power ON)
    6 min
    Initial opening (NC) time (power ON) 24V
    3 min
    Final opening (NC) time (power ON)
    6 min
    Actuator stroke
    max 4.0 mm
    Valve stroke
    3 mm
    Protection class
    Ip54 to En60529
    Electrical Protection class
    II
    Safety (contamination level)
    2
    Cable length *
    1m
    4-pole x 0.5 mm2
    Operation temperature limit
    0 to 50°C
    Storage temperature limit
    -25 to 60°C
    Fluid temperature limit
    Max 110 °C
    Nominal closing force (power OFF) (Closed type)
    100 N (±10%)
    Auxiliary microswitch (4-pole model)
    max 700 mA – 250 V ~ (a.c)
    Cover
    Pa66 +30 F.V. self estinguished
    Valve connection
    Threaded ring nut M30x1.5

4 Wire 24v Underfloor Heating Actuator

£12.49 inc.VAT

In Stock
SKU: ZL-2039/24V
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  • Description

    This precision thermal actuator for underfloor heating systems monitors and regulates room temperatures by auto-opening/closing port valves based on thermostat inputs, providing precise underfloor heating temperature regulation.

    It integrates seamlessly with underfloor heating manifolds, thermostatic valve bodies, and three-way valves in water-based radiant floor heating setups, ensuring optimal hydronic flow and energy-efficient performance in zoned home heating systems.

    Key Features and Benefits

    • Normally Closed Underfloor Heating Thermal Actuator for Secure Control: Offers normally closed operation for energy-efficient control in underfloor heating systems with manifold valves, preventing flow until thermostat activation to enhance radiant floor heating safety in multi-zone installations.
    • M30 Thread Compatibility for Underfloor Heating Manifolds and Valves: Universal M30 x 1.5 thread fits most modern underfloor heating manifolds, thermostatic valve bodies, and three-way valves—perfect for retrofits in residential or commercial radiant heating applications.
    • 3mm Stroke Length Thermal Actuator for Precise Valve Positioning: Provides 3mm stroke for accurate valve positioning and responsive temperature regulation in underfloor heating circuits, boosting comfort in electric or water underfloor heating setups.
    • Low 2W Power Consumption Underfloor Heating Actuator for Energy Savings: Efficient 2W draw cuts costs, ideal for 24V low-voltage underfloor heating systems in eco-friendly residential and commercial radiant floor heating buildings.
    • 4-Wire Configuration Thermal Actuator Wiring for Easy Integration: Standard 4-wire setup eases thermostat connections in multi-zone underfloor heating setups, avoiding wiring issues in control panels or manifold replacements.
    • Tool-Free Installation Underfloor Heating Actuator for Quick Setup: No-tools mounting speeds setup on M30-threaded underfloor heating manifolds, minimizing downtime for DIY or pro radiant heating upgrades.
    • Silent Operation Compact Thermal Actuator Design for Discreet Use: Whisper-quiet and compact for discreet fit in underfloor heating control panels, ensuring silent operation in homes or offices.
    • CE Marked Reliable Underfloor Heating Thermal Actuator for Longevity: CE-certified for safety and durability, delivering interruption-free service in radiant underfloor heating to extend system life and save energy.
  • Manuals

    Mounting onto the manifold

    1. Remove the isolation cap on the return manifold
    2. Position the actuator onto the port value
    3. Tighten the ring nut by hand- do NOT use a spanner or similar tool.
    4. Connect the electrical wiring to complete.

     

     

    Function of Normally Closed Version (NC)

    • When applying the operating voltage, the expansion system of the actuator will be heated. After passing the dead time a uniform procedure will follow.
    • When the voltage supply is cut off, the actuator will automatically close after passing the dead time due to calling of the expansion system.

    Note: in case of any functional testing, be aware of the dead time behaviour and take this into consideration. The opening and closing ties will depend upon the ambient temperature.

  • Specifications

    4 Wire Actuator Datasheet

    Technical Data
    Action ON/OFF
    Power supply 230v/AC, 25v/DC (+10%/-15%)
    Frequency 50 – 60 Hz
    Power consumption (normal operation) 2W
    Peak starting current 0.20 A x 0.5 sec (230V) 0.25 A x 60 sec (24V)
    Initial opening (NC) time (power ON) 230V 75s
    Final opening (NC) time (power ON) 6 mins
    Initial opening (NC) time (power ON) 24V 3 mins
    Final opening (NC) time (power ON) 6 mins
    Actuator stroke max 4.0 mm
    Valve stroke 3 mm
    Protection class Ip54 to En60529
    Electrical Protection class II
    Safety (contamination level) 2
    Cable length 1m
    Operation temperature limit 0 to 50°C
    Storage temperature limit -25 to 60°C
    Fluid temperature limit Max 110 °C
    Nominal closing force (power OFF) (Closed type) 100 N (±10%)
    Auxiliary microswitch (4-pole model) max 700 mA – 250 V ~ (a.c)
    Cover Pa66 +30 F.V. self estinguished
    Valve connection Threaded ring nut M30 x 1.5
  • Thermostats

    Action
    ON/OFF
    Power supply
    24 / 230 VAC/DC (+10% / -15%)
    Frequency
    50 ÷ 60 Hz
    Power consumption (normal operation)
    2W
    Peak starting current
    0.20 A x 0.5 sec (230V) 0.25 A x 60 sec (24V)
    Initial opening (NC) time (power ON) 230V
    75 s
    Final opening (NC) time (power ON)
    6 min
    Initial opening (NC) time (power ON) 24V
    3 min
    Final opening (NC) time (power ON)
    6 min
    Actuator stroke
    max 4.0 mm
    Valve stroke
    3 mm
    Protection class
    Ip54 to En60529
    Electrical Protection class
    II
    Safety (contamination level)
    2
    Cable length *
    1m
    4-pole x 0.5 mm2
    Operation temperature limit
    0 to 50°C
    Storage temperature limit
    -25 to 60°C
    Fluid temperature limit
    Max 110 °C
    Nominal closing force (power OFF) (Closed type)
    100 N (±10%)
    Auxiliary microswitch (4-pole model)
    max 700 mA – 250 V ~ (a.c)
    Cover
    Pa66 +30 F.V. self estinguished
    Valve connection
    Threaded ring nut M30x1.5

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