I’ve been going around in circles with this setting. Grant have offered conflicting information, and I’m tempted to think even they don’t know.
With the following settings, what would happen if A) the DFWT was 5 Degrees and B) 12 Degrees.
EcoNET stat set high at 24 during the day to allow the WC to do its job (average room temp 21 degrees)
Set Back at 18 Degrees
Pump Blockade Off
Open system running 6 rads (no TRVs)
Once the air temp is reached does how does the DFWT setting of 5 or 12 degrees affect the modulation. Does it reduce the flow temp by the setting or set a new parameter?
I believe it reduces the (target) flow temp, calculated from the wc curve, by dfwt degrees for every degree room temp exceeds the setpoint (presumably ignoring the hysteresis setting). Oh, and probably increases it for every degree under? Easiest way to see is look in the econet app at what lwt it is Trying for while you fiddle with the two numbers (setpoint for the room and the dfwt).
If that’s not dfwt, then it is some similar setting which has that effect. Grant (axen /plum) naming of the parameters is whacky to say the least. Probably made sense in Chinese or Polish.
