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  Giacomini R478 Underfloor Heating Thermal Actuator – Normally Open 2 Wire 230 v

  Quick View £18.95 
  Giacomini Hep2o R478 Underfloor Heating Thermal Actuator 230v 2 wire R478V The actuators of the R478 series are normally open (NA). They allow them hydraulic supply of the circuits when there is no voltage and they have a cable with two conductor for the connection to room thermostats or adjustment regulators. The R478M version has a stroke end micro-switch for driving circulators or zone valves. The R478V version has varistor for installation on places where the network voltage undergoes sudden changes that could damage the electronic components. The R478MV version has either varistor or stroke end micro-switch. In radiant panel heating and cooling systems, the normally open electrical actuators are to be preferred as they are not supplied for most of the time involving a sensible electric energy saving. Description In order to allow an optimal control of the room temperature, combining the energy saving with a high comfort, the use of electrical actuators on distribution manifolds, on radiator valves with thermostatic option, or on fancoil valves is advisable. The series of R478 electrical actuators is characterised by an absolute quiet operation, long lasting lifetime as it has no mechanism subjected to wear and a sufficiently slow closing to prevent from water hammer phenomenon. The operation mechanism is made of wax bulbs controlled by low consumption electrical PTC (Positive Temperature Coefficient). Technical data • Product in compliance with the Directives B.T. 73/23/CEE and 93/68/CEE and ENEC 03 Certificate • Product category: “Electrical actuators for assembly on radiators or radiant panel systems” • Condition in absence of voltage: - Normally Open “NO” (R478) • Linear motion • Valve working stroke 2,4 mm • Dust protection class 2 • Electrical discharge voltage 4 kV • Electrical enclosure to IP40 • Protection against direct contracts by means of double insulation (Class II) • Supply cable type H05 VV-F, useful length 1,5 m • Opening time at ambience temperature for R478/R478V/R478M/R478VM versions, 230 V - 24 V ≈ 6 minutes • Working room temperature: -5÷50 °C • Storage room temperature: -20÷65 °C • Casing material flame retardant PBT V0-UL94 • Vertical assembly above the valve, or horizontal • Rapid connection for Giacomini standard • Valve position mechanical indicator • Micro-switch NC with open valve (R478M - R478MV) Normally dispatched in 3-4 days
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  24v 4 Zone Underfloor Heating Master Control Wiring Centre / Unit – Watts / Komfort

  Quick View £49.95 

  Komfort 4 Zone 24 v Master Control Wiring Unit with Visible Heating Zones, Boiler and Pump Lights

  will allow up to 4 underfloor heating zones, for additional zone also select the 24v slave wiring unit Please note a transformer is required with this unit and will need to be purchase separately link below https://underfloorparts.co.uk/product/230v-24v-watts-transformer-p-2080-polypipe-polyplumb/
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  Heatmiser EA1 – Extended Area

  Quick View £11.84 
  This external aerial is designed to work with the UH8-RF Wireless Wiring Centre. Radio Frequency (RF) communication is affected by metal objects and so this external aerial is ideal for those installations where the UH8-RF will be installed in a metal cupboard. It is also perfect for extending the RF coverage within your property.
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  Heatmiser UH8-N 8 Zone 12v Network Wiring Centre

  Quick View £99.99 
  The Heatmiser UH8-N is a central wiring switch box designed to be used with our 12v network thermostats. The UH8-N offers the following functionality;

  • Central wiring to up to 8 zone actuators
  • Output for under-floor heating valve and pump activated when any thermostat calls for heat
  • Works with our low voltage thermostats.
  • Output for a single radiator zone
  • Output for domestic hot water
  • Low voltage wiring to thermostats.
  • Network connection to Heatmiser Touchpad
  • Actuator outputs: 240V
  • DIN Rail Mounting

  Warranty: 2 Year Direct Manufacturer Warranty