Newbie question... I am considering to replace my primitive bimetall room thermostats with a HmIP system.
The water circuits have Danfoss actuators which only start opening after a 3-minutes delay.
After this delay, actuator operation takes 2 minutes but the water circuits are fully open after 20 second already.
Indeed, if I remove an actuator and press on the valve tip, a small move of less than 1mm is sufficient
to change water flow from 0 to maximum. Full valve travel is 4mm.
If I replace the bimetall thermostats with a HmIP-FAL230 (and wall thermostats), will the PWM regulation
work properly ? I have seen a thread with an example showing that PWM worked with a 2-minutes opening time
and 15 minutes cycle time. If so, the Danfoss valves will be too slow and will never open !
Is it possible to configure the FAL so the PWM pulses will always be longer than the 3 minutes lag time of the valves ?
Alternatively I could use a HmIP-FALMOT with VDMOT actuators. In this case, can I configure the actuators to limit
their travel to ~1mm instead of the full 4mm ?
Rgds,
ppe-bh
Slow underfloor heating valves - HmIP-FAL230 ?
Moderator: Co-Administratoren
Re: Slow underfloor heating valves - HmIP-FAL230 ?
I've put regular radiator valves in the loop, which works fine, though you might have to replace the firmware of the valves with an older version.
https://ninelizardsblog.blogspot.com/20 ... art-1.html
https://ninelizardsblog.blogspot.com/20 ... art-1.html