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Central Heating for thre Pump Controllers (DE.90) (ST-427i)

169.00 €
incl. 19% VAT
plus shipping and handling

 

Principle of operation 

EU-427i (ST-427i) regulator is intended to control the operation of three pumps. The controller's task is to switch the pumps on (temporarily if the temperature exceeds the threshold value of activation) and off when the boiler cools down (e.g. as a result of burnout). If a selected pump is not a CH pump, apart from activation temperature, the user adjusts the set temperature up to which the pump will operate. There is a possibility to set any priorities of the pumps' operation.

Functions performed by the controller:

  • control of three pumps on the basis of the measurement of temperatures or on a time basis
  • anti-stop function
  • anti-freeze function
  • the possibility of setting any priorities of pumps
  • the possibility of connecting room regulator

Equipment of controller:

  • LCD display
  • three temperature sensors
  • knob of the pulse generator
  • casing made of high quality materials resistant to high and low temperatures
 

                                                        

Specifications Unit
Power supply V 230V/50Hz +/-10%
Maximum power consumption of the controller W 4
Ambient temperature °C 5÷50
Maximum output load of the pump A 1
CH temperature range °C 30÷75
CH temperature range °C 20÷75
Floor temperature range °C 30÷75
Hysteresis °C 1÷30
Accuracy of measurement °C 1
Thermal resistance of the sensor °C -25÷90
Fuse-link A 3,15
 
Sample schemes of connections:
 
 
* Schematic diagram, schematic design does not replace the heating system.
In the diagram shown the heating elements do not shut off and security for the performance of its professional installation.

  


Add to Cart:

  • Model: EU-427i, st427i, DE.90
  • Shipping Weight: 2 lbs
  • 2 Units in Stock
  • Manufactured by: Master



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This product was added to our catalog on Friday 14 June, 2013.
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