New Danfoss TRV

[Dave_H 52]

Let's hope that this is more than just a new design, but some improvements on the LC-13 in terms of reporting as well:

 

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Anyone have any more info, by any chance?

 

Dave

[jakub.jezek 370]

@Dave Harrison,

 

Will be next year and should have Flir (rumors that i have not confirmed yet). Had bluetooth version in my hands . Fells great while setting temperature. I'm looking forward to work with those Danfoss TRVs. One thing i missing there for now is that i cannot set display rotate (90°) to left or to right.

[Dave_H 52]

11 hours ago, jakub.jezek said:

Will be next year and should have Flir

 

Thanks @jakub.jezek.  I probably read about FLiRS when starting out in HA, but decided it was far too complicated an acronym to even begin to try to figure out what it meant at the time .

 

There's a good explanation in the HomeSeer Z‐Wave Plug‐in for HS3 User Manual available on the z-wavealliance.org website, for others, like me, who didn't know what it was:

 

FLiRS/Beaming

A door lock is usually a battery operated device, but unlike most battery devices it cannot go to sleep and turn off the radio, 

or you would not be able to control it with a Z­Wave command; imagine telling the door to unlock and having to wait six minutes 

for the next wake­up signal for it to happen!  To preserve battery life but allow for near instantaneous communication, the people 

in Denmark who invented Z­Wave added another beneficial twist to the protocol ­- FLiRS.

FLiRS stands for Frequently Listening Routing Slave, but it is more commonly referred to as "Beaming" due to the way a

FLiRS device communicates.  At a regular interval, the slowest of which is 1.5 seconds, a beaming device will listen for a

"Wake­Up Beam" signal, which is a specially formatted carrier signal that another node will start transmitting when it has

something to send to the FLiRS node.  Beaming has been supported since Z­Wave library 5.02, which is why older (4.3)

library controllers cannot be used with door locks and other devices utilizing beaming.  Beaming devices in an older ZWave

network are not without their challenges in a large network...when a controller tries to communicate with a beaming device 

and cannot communicate directly, which means routing has to be done, then at least one device within range of the destination 

node has to be new enough to support beaming.  Beaming is not used between the source node and the nodes it routes through, 

but the end device that communicates with the beaming device has to be able to turn on the beam signal to get the attention of 

the destination node until the destination node responds and the command delivered.

 

So the advantage of having FLiRS available for a battery operated TRV, I guess, is that it can respond to a command to change the setpoint temperature much more quickly, rather than having to wait for the device to wake up.

 

I see that the new Eurotronic TRV also has support for FLiRS (

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).