Hi,
I’m new to this so please bear with me 
I have a z-wave boiler controller: “SSR 302 2-zone Thermostat Receiver by Horstmann (Secure Meters)”
And a thermostat: " Horstmann HRT4-ZW Wireless Digital Thermostat"
I’m trying to get my head around how to make this work…
- How to properly pair the devices to show up in Home assistance.
- How to make it so that the thermostat sends and on-off command to the boiler controller?
The show up on z-wave integration panel, but I’m not sure where to go from here…
Any guidance would be much appreciated
I’ve a similar setup. I followed this to configure the direct association between the transmitter and the receiver:
In Home Assistant UI I added a Thermostat Card: https://www.home-assistant.io/lovelace/thermostat/
As Entity to control, I used my climate.horstmann_secure_meters_hrt4_zw_thermostat_transmitter_heating_1
There was a problem/bug with this Z-Wave product integration, as the transmitter HRT4-ZW wasn’t detected as a climate option so you couldn’t associate it to a Thermostat Card. Workarounds to fix this issue are explained in:
With this setup I can easily control the temperature setpoint in HA using the Thermostat card.
I’ve a minor limitation I’m trying to fix: I’d like to see the actual state (on/off) of the ASR module. My goal is to have a summarization of minutes per day in which the heating was actually on. I believe this is due to the fact I’ve used association 2 “Binary Switch Set”, so the transmitter send a direct on/off command to the receiver and HA is not receiving it. I need to investigate it further.
@xerofule
Did you find a solution for the actual state of the ASR?
I am able to set the state from HA, but if you do it from the device it isn’t reported back.
I got it working by polling the ASR-ZW. I know pollig is not the best way, but it works.
To fix the HRT4-ZW being seen as a thermostat I used the solution on the Github page.
That is changing the zwave device type in the xml file.
First, stop the Z-Wave network, then change ‘specific=0’ to ‘specific=4’.
Then I did a restart of HA completely and a node refresh afterwords.
@MarcellusWallace do you have direct association between both devices? I have it but the ASR-ZW State is always Off, however it’s actually heating the house
Hi,
Yes, I have a direct connection between both devices.
But to get the status of the ASR-ZW I added a polling interval of 5 to the configuration.
Now I can see the status in Lovelace. It is not instant because of the polling, but it works.
