Hello group. I’ve had my ecodan for a number of years now, has a FTC5 ctler, honeywell DT92E wireless room thermostat and solar boost. I’ve tried to optimise with compensation curve but there has been something nagging away. The zones were set up as downstairs UFH zone 1 and zone 2 upstairs, which is switched by the DT92E. Or so I thought.
At night it gets too warm. Very noticeable now we’ve just switched on a couple of the UFH stations (there are 4 separate thermostats, all linked to a central manifold). I set the DT92E at 15 deg C, (so zone 2 should not heat) but the rads are still coming on. It would seem that the UFH coming on, switches zone 2 as well.
Under the bonnet of the system and I’ve noticed that -
The reference temp is from the main controller unit only - i.e. the controller in the airing cupboard. The wireless control box sends a signal to switch on, when temp reached, and this would appear to be all run by the 3-way valve. Within the ecodan main control box, there is no definition of zone thermostats.
Does anyone have similar experience, or more so, can someone help me sort this set-up out, please?
Thank you so much,
Mark
