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This model shown is proportional control
The TR4114 has a 4000 ohm temperature sensor for use in averaging applications
It is used for controlling and regulating unit valves and underfloor distributors within room automation
Integrated countdown timer
Electrical rating : 250 Vac 1Amp
Controlli MVA Series Valve Actuators solid state CO sensor This model shown is proportionalControlli MVA actuators are electro thermal type and are controlled by an on off signal or, for MVA41 42 only, by pulse width modulation too. Actuators are supplied by control signal; this causes the thermostatic element to heat up and a small piston to come out and lower the valve stem. MVA22 42 actuators are supplied with a 2 (0. 2)A 250 V SPST microswitch with contact closed by powered actuator; a particular application of fan control terminal unit