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ELECTRONIC MIXERS FOR DHW WITH ANTILEGGIONAIRE FUNCTION

MAS 6.. - 7.. / AL

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APPLICATION

Compact unit for control of temperature at fixed point in DHW distribution circuits.

The Antilegionnaire function comes into operation once a week (adjustable day and time).

Increases the temperature of the distribution circuit (valve completely open) for a period of time proportional to the temperature itself: high temperature (> 65°C) = short period (30 min.); low temperature (<55°C) = long period (7 hours).

Comprises:

  • 1 three-port ball valve.

  • 1 reversible electric actuator with electronic controller.

  • 1 a temperature detector with an NTC 10 kΩ sensing element incorporated in the valve.

FEATURES

  • Power supply: 230 V ~.

  • Protection: IP 54.

  • Consumption: MAS 6.. = 6 VA; MAS 7.. = 9 VA.

  • Working pressure and maximum differential: 6 bar.

  • Proportional band: ± 5 ... ± 20 °C.

Code   DN Flow l/min. (1) Kvs (2) m3/h Setting range Data sheet
inches mm.
MAS 615/AL   1/2" 15 40 2.5 30 ... 70 °C C 512
MAS 620/AL   3/4" 20 70 5 30 ... 70 °C
MAS 625/AL   1" 25 130 9 30 ... 70 °C
MAS 632/AL   1" 1/4 32 180 13.5 30 ... 70 °C
             
MAS 740/AL   1"1/2 40 270 19.2 30 ... 70 °C
MAS 750/AL   2" 50 390 28.6 30 ... 70 °C

  • (1) – rate based on 4 bar average pressure andpressure  drop of about 20%.

  • (2) – Flow  rate coefficient: flow in m3 with valve open and pressure drop of 100 kPa.

 

PRESSURE DROP