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s97

The Luoyang–Lushi Expressway (Chinese: 洛阳－卢氏高速公路), designated as S97 in Henan's expressway system, is 137.4-kilometre (85.4 mi) long regional expressway in Henan, China.

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    Ecotec plus boiler with VR66 gives code s97

    I have mounted a VR66 wiring centre in dual zone (switch in position 0) with two VRT350 thermostats. The heater is an Vaillant Ecotec Plus with combiboiler from october 2020. And I must say it works very well when one or both thermostats ask for heat. When there is no demand for heat the boiler...
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