Evohome problems on Danfoss RAS-C2 valves
New radiators, new problems We have a Honeywell Evohome system, which is excellent for controlling the temperature in a house, especially when you want to save energy and avoid heating rooms until they are needed. Our current house was just converted from LPG to a heat pump, and this required several new radiators. I'd specifically asked for Evohome compatible valves, and the installer brought some decent quality Danfoss RAS-C2 valves. I'm told Danfoss valves are one of the most common in the industry, and Evohome controllers come with a specific adaptor for them. Danfoss style valves Valve stroke issues - HR91 The problem was that the radiators never turn on, they are stone cold, despite the valve motor turning. With a bit of investigation I found that the HR91 controllers I was using never open fully to the end stop. They always stop well before it. This is apparently a deliberate choice to save battery by winding the motor for a shorter time. The trouble is that the cont