HRT4-ZW with Fibaro Relay Switch - How To?

Other Devices & Integrations Climate Control & Temperature Sensors
1

I’m looking to add another HRT4-ZW to my home set up, but I’d like to explore linking it to a Relay Switch rather that the ASR-ZW (as the current one I have set up, seems to be the weakest link).

Has anyone done this (I know Intveltr has, so I hope he can contribute too) as I would like to capture the exact steps (1 by 1) and also understand how they might differ when installing the HRT4-ZW & ASR-ZW combo. e.g how to group etc.

2

Setting up the thermostat with a Fibaro or other switch is similar to setting up with the ASR:

  1. include the thermostat and Fibaro into Vera’s network
  2. in the Vera UI, manually associate the thermostat to the Fibaro switch on group 2
  3. set the thermostat to L and tell Vera to configure the device.

Be aware that you can only associate the thermostat with the Fibaro’s parent device, thus only control the first of the two relays.

3

Thanks Intveltr

A few quick questions.

I take it, this is because I already have one HRT4-ZW running on Group 1?

Is that assuming I’m using the 21.5kw Fibaro Relay?
Is it a non issue if you are using a 13kw Fibaro Relay?

Once installed, I assume I then need to follow the process of configuring it by adding the 3 device options to the HRT4-ZW etc.

While, i have you, did you see the recent post I made on the main HRT4-ZW page, where i linked to a document that detailed a slightly different installation procedure for thermostat? I.e. There was no mention of adding those 3 device options etc.?

As you seem very familiar with these I would be interested in your thoughts on that.

And finally I’m sure I read somewhere that the ASR-ZW also acts as an override for one hour if you hit the on button? Is that true or am I just making that up in my head…