Technical Description

These are a few of many good reasons for using this boilers :


  • Better utilisation of electric output
  • Using bivalent operation to optimalize operating costs
  • Safe supply of energy
  • Easy integration in existing installations and systems
  • Higher efficiency of the installation
  • Heat production
  • Long service life
  • Little space required
  • Low maintenance costs
 

Boiler Design

Boilers are in accordance with international regulations.
The boilers consist basically of :


  • a pressure vessel with heating elements which are mounted from above,
  • a thermal mineral fiber insulation,
  • an exterior casing made of plastic coated steel plates,
  • a removable front door,
  • a complete electronical fittings which include :
  • - a power unit,
  • - a control and regulations system,
  • - a safety temperature limiter.
 

Boiler regulator

The electric boilers are supplied with an electronic regulating unit for proportional power regulation in 15 or 30 steps.
Based on internal or external control the regulator offers a large number of functions.
Step-time is adjustable between 5 and 120 seconds.


Regulating the temperature

Regulation of a constant outlet temperature with varying output within a proportional area (P-area) of ± 5°C. Rated value setting 20-100°C (120°C).

 

Limiting the output

A 0-100% limitation of the boiler output is achieved through a fixed setting on the regulator or through presetting a voltage signal of 0-10 V.


Regulating the output

Regulation of the boiler output is in accordance with the available output of the whole system, or the respective main load.
The regulator is controlled by an external output signal which equals 0-10 V or an electric signal of 0-5 A.

Boiler sequence control (Not applicable to 7-step regulator)

Simultaneous operation of up to 4 boilers in a row is achieved by connecting the boiler regulators so that they perform in an automatic order of presedence which will not be impaired if individual boilers are switched off.

 

Additional functions


These are some of the advantages of the additional equipment suitable for the boiler regulator :


  • Regulation of the boiler's outlet temperature in accordance with the external temperature.
  • Bivalent operation of the electric boiler together with boilers using other sources of energy.
  • Remote adjustment of the rated value of the boiler outlet temperature.
  • Direct control of the regulator, e.g. through outside control impulse in order to switch the boiler on or off.
  • In compliance with leading technology.
 

Special feature/Comments


  • Insertable, easily accessible control unit cassette.
  • Easy replacement of the various step regulators (15 and 30 steps).
  • Electrical connection box to be mounted on optionally the right or left hand side. (Cable fed from above or below).
  • Boiler test adjustable to a maximum of 12 mm.
  • Lifting hooks which are easily dismantled.
  • Required height for disassembly of beating elements is 1 m.
  • Subject to alteration.