When I search for answers, your videos always show up are are the most helpful. Thank you for making these! I have a Danfoss Icon system but whoever installed it installed a Giacomini distributor and actuators. I am replacing a broken Giacomini with a Danfoss TWA-K. I believe this is a compatible connection. Is there anything I need to think about?
Hmm, TWA-K will not fit for Giacomini, unless there is an adaptor mounted. If you have Giacomini manifold and Giacomini actuators, where should be no additional adaptor. You can mount Danfoss acctuator ABN-FBH NC 230V 193B2147 (for Icon 230V, or Icon2 230V) + connector 193B2017 OR ABN-FBH NC 24V 193B2148 (for Icon 24V, or Icon2 24V) + same connector 193B2017
For underfloor it is more common to use NC. In case electricity fails or automatics - your floor will be secured. And as concrete holds heat you will not get frozen for a cuite long time to fix the problem.
Hi, in my house, the black indicator goes up and down as set by the thermostat. But the heater in one room is always on. I want to remove it to check the pin inside but the screw is completely rusted. How can I fix this problem?
I think those thermal actuators are very stupid. If you have 5 groups that are active for 50% of the time (for example with a heatpumps) you use 5 x 2W x 12 hrs per day. There are battery powered thermostatic controls for radiators, why hasn’t this technique been improved for those actuators….
I have battery operated TRVs at the moment and looking at these wired versions as a good alternative. The smart TRVs are not strong enough long term, requires batteries and have "smart crap" in them making them not do what I want.
@@TheHellis There are many battery-powered smart thermostats available for radiator valves in the home automation market, but I couldn't find any designed specifically for underfloor heating system manifolds. Which brand and model do you use?
@@MFG485 you should not get battery powered versions. They are not good. You need to change batteries rather frequently and they are noisy. Thermal actuators make no sound at all. We now have only thermal actuators in our home. Even though it's in the middle of the winter our most frequent radiator is just on 20-25% of the day, and the one that is used least is probably at 5-10%. Without doing any math, I'm quite sure that it is cheaper with mains than replacing batteries in battery operated TRVs.
Very useful information! You saved my day! Thanks!
Glad to hear it helped! Let me know if you have more questions-happy to help!
When I search for answers, your videos always show up are are the most helpful. Thank you for making these!
I have a Danfoss Icon system but whoever installed it installed a Giacomini distributor and actuators. I am replacing a broken Giacomini with a Danfoss TWA-K. I believe this is a compatible connection. Is there anything I need to think about?
Hmm, TWA-K will not fit for Giacomini, unless there is an adaptor mounted. If you have Giacomini manifold and Giacomini actuators, where should be no additional adaptor. You can mount Danfoss acctuator ABN-FBH NC 230V 193B2147 (for Icon 230V, or Icon2 230V) + connector 193B2017 OR ABN-FBH NC 24V 193B2148 (for Icon 24V, or Icon2 24V) + same connector 193B2017
@@heatingsolutions123 Good to know. Plan to replace it all with Danfoss. Thanks for the quick response 👍 👌
Hi, I have water underfloor heating system which actuator do I need to use NC or NO and why?
For underfloor it is more common to use NC. In case electricity fails or automatics - your floor will be secured. And as concrete holds heat you will not get frozen for a cuite long time to fix the problem.
Hi, in my house, the black indicator goes up and down as set by the thermostat. But the heater in one room is always on. I want to remove it to check the pin inside but the screw is completely rusted. How can I fix this problem?
Drilling the screw could be an option. But after this you would probably need new actuator.
I have a Danfoss manifold with my UFH, i need 18 actuators, which type do i need for this type manifold.
@@stephenhunter956 for Danfoss manifold fits TWA-A actuator. Usually used NC type, 24 or 230V depends on controls
can it be comnected to 220V directly ?
Yes. 230V actuators can be connected to 220-230V directly.
I think those thermal actuators are very stupid. If you have 5 groups that are active for 50% of the time (for example with a heatpumps) you use 5 x 2W x 12 hrs per day. There are battery powered thermostatic controls for radiators, why hasn’t this technique been improved for those actuators….
Thermal actuators are reliable, may last 10-30 years, has no noise. 5 x 2W x 12h x 30days= 3,6 kWh - not a lot.
I have battery operated TRVs at the moment and looking at these wired versions as a good alternative.
The smart TRVs are not strong enough long term, requires batteries and have "smart crap" in them making them not do what I want.
@@TheHellis There are many battery-powered smart thermostats available for radiator valves in the home automation market, but I couldn't find any designed specifically for underfloor heating system manifolds. Which brand and model do you use?
@@MFG485 you should not get battery powered versions. They are not good.
You need to change batteries rather frequently and they are noisy.
Thermal actuators make no sound at all.
We now have only thermal actuators in our home. Even though it's in the middle of the winter our most frequent radiator is just on 20-25% of the day, and the one that is used least is probably at 5-10%.
Without doing any math, I'm quite sure that it is cheaper with mains than replacing batteries in battery operated TRVs.
@@TheHellisI see but thermal actuators are manually operated. They are not smart and cannot operated based on room temperature.
Waste talk all the way not necessary
Thank you for your feedback.