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Armstrong EV-4, MV-3, LV-4, WV-4 Thermostatic Radiator Operators

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EV-4, MV-3, LV-4, WV-4 Thermostatic Radiator Operators

Thermostatic operators provide accurate and automatic control of space temperature. The LV-4 can be easily adjusted to a comfortable temperature. The lowest setting provides freeze protection at approximately 45˚F/7°C, with a high setting of 82˚F/28°C. Temperature settings on all LV-4 operators may be limited or locked.




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